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- Committer: teddy at recompile
- Date: 2019-12-05 03:38:07 UTC
- Revision ID: teddy@recompile.se-20191205033807-6awt45zpgp194vl1
From: Frans Spiesschaert <Frans.Spiesschaert@yucom.be>
Add Dutch debconf translation
* debian/po/nl.po: New.
Acked-by: Teddy Hogeborn <teddy@recompile.se>
Add Dutch debconf translation
* debian/po/nl.po: New.
Acked-by: Teddy Hogeborn <teddy@recompile.se>
- files added:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2012 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
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
31
32
# Contact the authors at <mandos@recompile.se>.
32
#
33
#
33
34
34
35
from __future__ import (division, absolute_import, print_function,
35
36
unicode_literals)
36
37
37
import SocketServer as socketserver
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
38
47
import socket
39
48
import argparse
40
49
import datetime
41
50
import errno
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
49
55
import sys
50
56
import re
51
57
import os
60
66
import struct
61
67
import fcntl
62
68
import functools
63
import cPickle as pickle
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
64
73
import multiprocessing
65
74
import types
66
75
import binascii
67
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
68
81
69
82
import dbus
70
83
import dbus.service
71
import gobject
72
import avahi
84
import gi
85
from gi.repository import GLib
73
86
from dbus.mainloop.glib import DBusGMainLoop
74
87
import ctypes
75
88
import ctypes.util
76
89
import xml.dom.minidom
77
90
import inspect
78
import GnuPGInterface
79
91
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
str = unicode
95
96
# Show warnings by default
97
if not sys.warnoptions:
98
import warnings
99
warnings.simplefilter("default")
100
101
# Try to find the value of SO_BINDTODEVICE:
80
102
try:
103
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
104
# newer, and it is also the most natural place for it:
81
105
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
82
106
except AttributeError:
83
107
try:
108
# This is where SO_BINDTODEVICE was up to and including Python
109
# 2.6, and also 3.2:
84
110
from IN import SO_BINDTODEVICE
85
111
except ImportError:
86
SO_BINDTODEVICE = None
87
88
version = "1.5.1"
112
# In Python 2.7 it seems to have been removed entirely.
113
# Try running the C preprocessor:
114
try:
115
cc = subprocess.Popen(["cc", "--language=c", "-E",
116
"/dev/stdin"],
117
stdin=subprocess.PIPE,
118
stdout=subprocess.PIPE)
119
stdout = cc.communicate(
120
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
121
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
122
except (OSError, ValueError, IndexError):
123
# No value found
124
SO_BINDTODEVICE = None
125
126
if sys.version_info < (3, 2):
127
configparser.Configparser = configparser.SafeConfigParser
128
129
version = "1.8.9"
89
130
stored_state_file = "clients.pickle"
90
131
91
132
logger = logging.getLogger()
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
133
logging.captureWarnings(True) # Show warnings via the logging system
134
syslogger = None
95
135
96
136
try:
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
137
if_nametoindex = ctypes.cdll.LoadLibrary(
138
ctypes.util.find_library("c")).if_nametoindex
100
139
except (OSError, AttributeError):
140
101
141
def if_nametoindex(interface):
102
142
"Get an interface index the hard way, i.e. using fcntl()"
103
143
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
104
144
with contextlib.closing(socket.socket()) as s:
105
145
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
146
struct.pack(b"16s16x", interface))
147
interface_index = struct.unpack("I", ifreq[16:20])[0]
110
148
return interface_index
111
149
112
150
151
def copy_function(func):
152
"""Make a copy of a function"""
153
if sys.version_info.major == 2:
154
return types.FunctionType(func.func_code,
155
func.func_globals,
156
func.func_name,
157
func.func_defaults,
158
func.func_closure)
159
else:
160
return types.FunctionType(func.__code__,
161
func.__globals__,
162
func.__name__,
163
func.__defaults__,
164
func.__closure__)
165
166
113
167
def initlogger(debug, level=logging.WARNING):
114
168
"""init logger and add loglevel"""
115
169
170
global syslogger
171
syslogger = (logging.handlers.SysLogHandler(
172
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
173
address="/dev/log"))
116
174
syslogger.setFormatter(logging.Formatter
117
175
('Mandos [%(process)d]: %(levelname)s:'
118
176
' %(message)s'))
119
177
logger.addHandler(syslogger)
120
178
121
179
if debug:
122
180
console = logging.StreamHandler()
123
181
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
133
191
pass
134
192
135
193
136
class PGPEngine(object):
194
class PGPEngine:
137
195
"""A simple class for OpenPGP symmetric encryption & decryption"""
196
138
197
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
140
198
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
145
'--quiet',
146
'--no-use-agent'])
147
199
self.gpg = "gpg"
200
try:
201
output = subprocess.check_output(["gpgconf"])
202
for line in output.splitlines():
203
name, text, path = line.split(b":")
204
if name == b"gpg":
205
self.gpg = path
206
break
207
except OSError as e:
208
if e.errno != errno.ENOENT:
209
raise
210
self.gnupgargs = ['--batch',
211
'--homedir', self.tempdir,
212
'--force-mdc',
213
'--quiet']
214
# Only GPG version 1 has the --no-use-agent option.
215
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
216
self.gnupgargs.append("--no-use-agent")
217
148
218
def __enter__(self):
149
219
return self
150
151
def __exit__ (self, exc_type, exc_value, traceback):
220
221
def __exit__(self, exc_type, exc_value, traceback):
152
222
self._cleanup()
153
223
return False
154
224
155
225
def __del__(self):
156
226
self._cleanup()
157
227
158
228
def _cleanup(self):
159
229
if self.tempdir is not None:
160
230
# Delete contents of tempdir
161
231
for root, dirs, files in os.walk(self.tempdir,
162
topdown = False):
232
topdown=False):
163
233
for filename in files:
164
234
os.remove(os.path.join(root, filename))
165
235
for dirname in dirs:
167
237
# Remove tempdir
168
238
os.rmdir(self.tempdir)
169
239
self.tempdir = None
170
240
171
241
def password_encode(self, password):
172
242
# Passphrase can not be empty and can not contain newlines or
173
243
# NUL bytes. So we prefix it and hex encode it.
174
return b"mandos" + binascii.hexlify(password)
175
244
encoded = b"mandos" + binascii.hexlify(password)
245
if len(encoded) > 2048:
246
# GnuPG can't handle long passwords, so encode differently
247
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
248
.replace(b"\n", b"\\n")
249
.replace(b"\0", b"\\x00"))
250
return encoded
251
176
252
def encrypt(self, data, password):
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
253
passphrase = self.password_encode(password)
254
with tempfile.NamedTemporaryFile(
255
dir=self.tempdir) as passfile:
256
passfile.write(passphrase)
257
passfile.flush()
258
proc = subprocess.Popen([self.gpg, '--symmetric',
259
'--passphrase-file',
260
passfile.name]
261
+ self.gnupgargs,
262
stdin=subprocess.PIPE,
263
stdout=subprocess.PIPE,
264
stderr=subprocess.PIPE)
265
ciphertext, err = proc.communicate(input=data)
266
if proc.returncode != 0:
267
raise PGPError(err)
191
268
return ciphertext
192
269
193
270
def decrypt(self, data, password):
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
271
passphrase = self.password_encode(password)
272
with tempfile.NamedTemporaryFile(
273
dir=self.tempdir) as passfile:
274
passfile.write(passphrase)
275
passfile.flush()
276
proc = subprocess.Popen([self.gpg, '--decrypt',
277
'--passphrase-file',
278
passfile.name]
279
+ self.gnupgargs,
280
stdin=subprocess.PIPE,
281
stdout=subprocess.PIPE,
282
stderr=subprocess.PIPE)
283
decrypted_plaintext, err = proc.communicate(input=data)
284
if proc.returncode != 0:
285
raise PGPError(err)
208
286
return decrypted_plaintext
209
287
210
288
289
# Pretend that we have an Avahi module
290
class avahi:
291
"""This isn't so much a class as it is a module-like namespace."""
292
IF_UNSPEC = -1 # avahi-common/address.h
293
PROTO_UNSPEC = -1 # avahi-common/address.h
294
PROTO_INET = 0 # avahi-common/address.h
295
PROTO_INET6 = 1 # avahi-common/address.h
296
DBUS_NAME = "org.freedesktop.Avahi"
297
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
298
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
299
DBUS_PATH_SERVER = "/"
300
301
@staticmethod
302
def string_array_to_txt_array(t):
303
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
304
for s in t), signature="ay")
305
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
306
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
307
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
308
SERVER_INVALID = 0 # avahi-common/defs.h
309
SERVER_REGISTERING = 1 # avahi-common/defs.h
310
SERVER_RUNNING = 2 # avahi-common/defs.h
311
SERVER_COLLISION = 3 # avahi-common/defs.h
312
SERVER_FAILURE = 4 # avahi-common/defs.h
313
211
314
212
315
class AvahiError(Exception):
213
316
def __init__(self, value, *args, **kwargs):
214
317
self.value = value
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
318
return super(AvahiError, self).__init__(value, *args,
319
**kwargs)
320
218
321
219
322
class AvahiServiceError(AvahiError):
220
323
pass
221
324
325
222
326
class AvahiGroupError(AvahiError):
223
327
pass
224
328
225
329
226
class AvahiService(object):
330
class AvahiService:
227
331
"""An Avahi (Zeroconf) service.
228
332
229
333
Attributes:
230
334
interface: integer; avahi.IF_UNSPEC or an interface index.
231
335
Used to optionally bind to the specified interface.
232
336
name: string; Example: 'Mandos'
233
337
type: string; Example: '_mandos._tcp'.
234
See <http://www.dns-sd.org/ServiceTypes.html>
338
See <https://www.iana.org/assignments/service-names-port-numbers>
235
339
port: integer; what port to announce
236
340
TXT: list of strings; TXT record for the service
237
341
domain: string; Domain to publish on, default to .local if empty.
243
347
server: D-Bus Server
244
348
bus: dbus.SystemBus()
245
349
"""
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):
350
351
def __init__(self,
352
interface=avahi.IF_UNSPEC,
353
name=None,
354
servicetype=None,
355
port=None,
356
TXT=None,
357
domain="",
358
host="",
359
max_renames=32768,
360
protocol=avahi.PROTO_UNSPEC,
361
bus=None):
250
362
self.interface = interface
251
363
self.name = name
252
364
self.type = servicetype
261
373
self.server = None
262
374
self.bus = bus
263
375
self.entry_group_state_changed_match = None
264
def rename(self):
376
377
def rename(self, remove=True):
265
378
"""Derived from the Avahi example code"""
266
379
if self.rename_count >= self.max_renames:
267
380
logger.critical("No suitable Zeroconf service name found"
268
381
" after %i retries, exiting.",
269
382
self.rename_count)
270
383
raise AvahiServiceError("Too many renames")
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
384
self.name = str(
385
self.server.GetAlternativeServiceName(self.name))
386
self.rename_count += 1
273
387
logger.info("Changing Zeroconf service name to %r ...",
274
388
self.name)
275
self.remove()
389
if remove:
390
self.remove()
276
391
try:
277
392
self.add()
278
393
except dbus.exceptions.DBusException as error:
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
394
if (error.get_dbus_name()
395
== "org.freedesktop.Avahi.CollisionError"):
396
logger.info("Local Zeroconf service name collision.")
397
return self.rename(remove=False)
398
else:
399
logger.critical("D-Bus Exception", exc_info=error)
400
self.cleanup()
401
os._exit(1)
402
283
403
def remove(self):
284
404
"""Derived from the Avahi example code"""
285
405
if self.entry_group_state_changed_match is not None:
287
407
self.entry_group_state_changed_match = None
288
408
if self.group is not None:
289
409
self.group.Reset()
410
290
411
def add(self):
291
412
"""Derived from the Avahi example code"""
292
413
self.remove()
309
430
dbus.UInt16(self.port),
310
431
avahi.string_array_to_txt_array(self.TXT))
311
432
self.group.Commit()
433
312
434
def entry_group_state_changed(self, state, error):
313
435
"""Derived from the Avahi example code"""
314
436
logger.debug("Avahi entry group state change: %i", state)
315
437
316
438
if state == avahi.ENTRY_GROUP_ESTABLISHED:
317
439
logger.debug("Zeroconf service established.")
318
440
elif state == avahi.ENTRY_GROUP_COLLISION:
320
442
self.rename()
321
443
elif state == avahi.ENTRY_GROUP_FAILURE:
322
444
logger.critical("Avahi: Error in group state changed %s",
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
445
str(error))
446
raise AvahiGroupError("State changed: {!s}".format(error))
447
326
448
def cleanup(self):
327
449
"""Derived from the Avahi example code"""
328
450
if self.group is not None:
333
455
pass
334
456
self.group = None
335
457
self.remove()
458
336
459
def server_state_changed(self, state, error=None):
337
460
"""Derived from the Avahi example code"""
338
461
logger.debug("Avahi server state change: %i", state)
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" }
462
bad_states = {
463
avahi.SERVER_INVALID: "Zeroconf server invalid",
464
avahi.SERVER_REGISTERING: None,
465
avahi.SERVER_COLLISION: "Zeroconf server name collision",
466
avahi.SERVER_FAILURE: "Zeroconf server failure",
467
}
346
468
if state in bad_states:
347
469
if bad_states[state] is not None:
348
470
if error is None:
351
473
logger.error(bad_states[state] + ": %r", error)
352
474
self.cleanup()
353
475
elif state == avahi.SERVER_RUNNING:
354
self.add()
476
try:
477
self.add()
478
except dbus.exceptions.DBusException as error:
479
if (error.get_dbus_name()
480
== "org.freedesktop.Avahi.CollisionError"):
481
logger.info("Local Zeroconf service name"
482
" collision.")
483
return self.rename(remove=False)
484
else:
485
logger.critical("D-Bus Exception", exc_info=error)
486
self.cleanup()
487
os._exit(1)
355
488
else:
356
489
if error is None:
357
490
logger.debug("Unknown state: %r", state)
358
491
else:
359
492
logger.debug("Unknown state: %r: %r", state, error)
493
360
494
def activate(self):
361
495
"""Derived from the Avahi example code"""
362
496
if self.server is None:
366
500
follow_name_owner_changes=True),
367
501
avahi.DBUS_INTERFACE_SERVER)
368
502
self.server.connect_to_signal("StateChanged",
369
self.server_state_changed)
503
self.server_state_changed)
370
504
self.server_state_changed(self.server.GetState())
371
505
506
372
507
class AvahiServiceToSyslog(AvahiService):
373
def rename(self):
508
def rename(self, *args, **kwargs):
374
509
"""Add the new name to the syslog messages"""
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
379
% self.name))
510
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
511
syslogger.setFormatter(logging.Formatter(
512
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
513
.format(self.name)))
380
514
return ret
381
515
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):
516
517
# Pretend that we have a GnuTLS module
518
class gnutls:
519
"""This isn't so much a class as it is a module-like namespace."""
520
521
library = ctypes.util.find_library("gnutls")
522
if library is None:
523
library = ctypes.util.find_library("gnutls-deb0")
524
_library = ctypes.cdll.LoadLibrary(library)
525
del library
526
527
# Unless otherwise indicated, the constants and types below are
528
# all from the gnutls/gnutls.h C header file.
529
530
# Constants
531
E_SUCCESS = 0
532
E_INTERRUPTED = -52
533
E_AGAIN = -28
534
CRT_OPENPGP = 2
535
CRT_RAWPK = 3
536
CLIENT = 2
537
SHUT_RDWR = 0
538
CRD_CERTIFICATE = 1
539
E_NO_CERTIFICATE_FOUND = -49
540
X509_FMT_DER = 0
541
NO_TICKETS = 1<<10
542
ENABLE_RAWPK = 1<<18
543
CTYPE_PEERS = 3
544
KEYID_USE_SHA256 = 1 # gnutls/x509.h
545
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
546
547
# Types
548
class session_int(ctypes.Structure):
549
_fields_ = []
550
session_t = ctypes.POINTER(session_int)
551
552
class certificate_credentials_st(ctypes.Structure):
553
_fields_ = []
554
certificate_credentials_t = ctypes.POINTER(
555
certificate_credentials_st)
556
certificate_type_t = ctypes.c_int
557
558
class datum_t(ctypes.Structure):
559
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
560
('size', ctypes.c_uint)]
561
562
class openpgp_crt_int(ctypes.Structure):
563
_fields_ = []
564
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
565
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
566
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
567
credentials_type_t = ctypes.c_int
568
transport_ptr_t = ctypes.c_void_p
569
close_request_t = ctypes.c_int
570
571
# Exceptions
572
class Error(Exception):
573
def __init__(self, message=None, code=None, args=()):
574
# Default usage is by a message string, but if a return
575
# code is passed, convert it to a string with
576
# gnutls.strerror()
577
self.code = code
578
if message is None and code is not None:
579
message = gnutls.strerror(code)
580
return super(gnutls.Error, self).__init__(
581
message, *args)
582
583
class CertificateSecurityError(Error):
584
pass
585
586
# Classes
587
class Credentials:
588
def __init__(self):
589
self._c_object = gnutls.certificate_credentials_t()
590
gnutls.certificate_allocate_credentials(
591
ctypes.byref(self._c_object))
592
self.type = gnutls.CRD_CERTIFICATE
593
594
def __del__(self):
595
gnutls.certificate_free_credentials(self._c_object)
596
597
class ClientSession:
598
def __init__(self, socket, credentials=None):
599
self._c_object = gnutls.session_t()
600
gnutls_flags = gnutls.CLIENT
601
if gnutls.check_version(b"3.5.6"):
602
gnutls_flags |= gnutls.NO_TICKETS
603
if gnutls.has_rawpk:
604
gnutls_flags |= gnutls.ENABLE_RAWPK
605
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
606
del gnutls_flags
607
gnutls.set_default_priority(self._c_object)
608
gnutls.transport_set_ptr(self._c_object, socket.fileno())
609
gnutls.handshake_set_private_extensions(self._c_object,
610
True)
611
self.socket = socket
612
if credentials is None:
613
credentials = gnutls.Credentials()
614
gnutls.credentials_set(self._c_object, credentials.type,
615
ctypes.cast(credentials._c_object,
616
ctypes.c_void_p))
617
self.credentials = credentials
618
619
def __del__(self):
620
gnutls.deinit(self._c_object)
621
622
def handshake(self):
623
return gnutls.handshake(self._c_object)
624
625
def send(self, data):
626
data = bytes(data)
627
data_len = len(data)
628
while data_len > 0:
629
data_len -= gnutls.record_send(self._c_object,
630
data[-data_len:],
631
data_len)
632
633
def bye(self):
634
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
635
636
# Error handling functions
637
def _error_code(result):
638
"""A function to raise exceptions on errors, suitable
639
for the 'restype' attribute on ctypes functions"""
640
if result >= 0:
641
return result
642
if result == gnutls.E_NO_CERTIFICATE_FOUND:
643
raise gnutls.CertificateSecurityError(code=result)
644
raise gnutls.Error(code=result)
645
646
def _retry_on_error(result, func, arguments):
647
"""A function to retry on some errors, suitable
648
for the 'errcheck' attribute on ctypes functions"""
649
while result < 0:
650
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
651
return _error_code(result)
652
result = func(*arguments)
653
return result
654
655
# Unless otherwise indicated, the function declarations below are
656
# all from the gnutls/gnutls.h C header file.
657
658
# Functions
659
priority_set_direct = _library.gnutls_priority_set_direct
660
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
661
ctypes.POINTER(ctypes.c_char_p)]
662
priority_set_direct.restype = _error_code
663
664
init = _library.gnutls_init
665
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
666
init.restype = _error_code
667
668
set_default_priority = _library.gnutls_set_default_priority
669
set_default_priority.argtypes = [session_t]
670
set_default_priority.restype = _error_code
671
672
record_send = _library.gnutls_record_send
673
record_send.argtypes = [session_t, ctypes.c_void_p,
674
ctypes.c_size_t]
675
record_send.restype = ctypes.c_ssize_t
676
record_send.errcheck = _retry_on_error
677
678
certificate_allocate_credentials = (
679
_library.gnutls_certificate_allocate_credentials)
680
certificate_allocate_credentials.argtypes = [
681
ctypes.POINTER(certificate_credentials_t)]
682
certificate_allocate_credentials.restype = _error_code
683
684
certificate_free_credentials = (
685
_library.gnutls_certificate_free_credentials)
686
certificate_free_credentials.argtypes = [
687
certificate_credentials_t]
688
certificate_free_credentials.restype = None
689
690
handshake_set_private_extensions = (
691
_library.gnutls_handshake_set_private_extensions)
692
handshake_set_private_extensions.argtypes = [session_t,
693
ctypes.c_int]
694
handshake_set_private_extensions.restype = None
695
696
credentials_set = _library.gnutls_credentials_set
697
credentials_set.argtypes = [session_t, credentials_type_t,
698
ctypes.c_void_p]
699
credentials_set.restype = _error_code
700
701
strerror = _library.gnutls_strerror
702
strerror.argtypes = [ctypes.c_int]
703
strerror.restype = ctypes.c_char_p
704
705
certificate_type_get = _library.gnutls_certificate_type_get
706
certificate_type_get.argtypes = [session_t]
707
certificate_type_get.restype = _error_code
708
709
certificate_get_peers = _library.gnutls_certificate_get_peers
710
certificate_get_peers.argtypes = [session_t,
711
ctypes.POINTER(ctypes.c_uint)]
712
certificate_get_peers.restype = ctypes.POINTER(datum_t)
713
714
global_set_log_level = _library.gnutls_global_set_log_level
715
global_set_log_level.argtypes = [ctypes.c_int]
716
global_set_log_level.restype = None
717
718
global_set_log_function = _library.gnutls_global_set_log_function
719
global_set_log_function.argtypes = [log_func]
720
global_set_log_function.restype = None
721
722
deinit = _library.gnutls_deinit
723
deinit.argtypes = [session_t]
724
deinit.restype = None
725
726
handshake = _library.gnutls_handshake
727
handshake.argtypes = [session_t]
728
handshake.restype = _error_code
729
handshake.errcheck = _retry_on_error
730
731
transport_set_ptr = _library.gnutls_transport_set_ptr
732
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
733
transport_set_ptr.restype = None
734
735
bye = _library.gnutls_bye
736
bye.argtypes = [session_t, close_request_t]
737
bye.restype = _error_code
738
bye.errcheck = _retry_on_error
739
740
check_version = _library.gnutls_check_version
741
check_version.argtypes = [ctypes.c_char_p]
742
check_version.restype = ctypes.c_char_p
743
744
_need_version = b"3.3.0"
745
if check_version(_need_version) is None:
746
raise self.Error("Needs GnuTLS {} or later"
747
.format(_need_version))
748
749
_tls_rawpk_version = b"3.6.6"
750
has_rawpk = bool(check_version(_tls_rawpk_version))
751
752
if has_rawpk:
753
# Types
754
class pubkey_st(ctypes.Structure):
755
_fields = []
756
pubkey_t = ctypes.POINTER(pubkey_st)
757
758
x509_crt_fmt_t = ctypes.c_int
759
760
# All the function declarations below are from gnutls/abstract.h
761
pubkey_init = _library.gnutls_pubkey_init
762
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
763
pubkey_init.restype = _error_code
764
765
pubkey_import = _library.gnutls_pubkey_import
766
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
767
x509_crt_fmt_t]
768
pubkey_import.restype = _error_code
769
770
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
771
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
772
ctypes.POINTER(ctypes.c_ubyte),
773
ctypes.POINTER(ctypes.c_size_t)]
774
pubkey_get_key_id.restype = _error_code
775
776
pubkey_deinit = _library.gnutls_pubkey_deinit
777
pubkey_deinit.argtypes = [pubkey_t]
778
pubkey_deinit.restype = None
779
else:
780
# All the function declarations below are from gnutls/openpgp.h
781
782
openpgp_crt_init = _library.gnutls_openpgp_crt_init
783
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
784
openpgp_crt_init.restype = _error_code
785
786
openpgp_crt_import = _library.gnutls_openpgp_crt_import
787
openpgp_crt_import.argtypes = [openpgp_crt_t,
788
ctypes.POINTER(datum_t),
789
openpgp_crt_fmt_t]
790
openpgp_crt_import.restype = _error_code
791
792
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
793
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
794
ctypes.POINTER(ctypes.c_uint)]
795
openpgp_crt_verify_self.restype = _error_code
796
797
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
798
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
799
openpgp_crt_deinit.restype = None
800
801
openpgp_crt_get_fingerprint = (
802
_library.gnutls_openpgp_crt_get_fingerprint)
803
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
804
ctypes.c_void_p,
805
ctypes.POINTER(
806
ctypes.c_size_t)]
807
openpgp_crt_get_fingerprint.restype = _error_code
808
809
if check_version(b"3.6.4"):
810
certificate_type_get2 = _library.gnutls_certificate_type_get2
811
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
812
certificate_type_get2.restype = _error_code
813
814
# Remove non-public functions
815
del _error_code, _retry_on_error
816
817
818
def call_pipe(connection, # : multiprocessing.Connection
819
func, *args, **kwargs):
820
"""This function is meant to be called by multiprocessing.Process
821
822
This function runs func(*args, **kwargs), and writes the resulting
823
return value on the provided multiprocessing.Connection.
824
"""
825
connection.send(func(*args, **kwargs))
826
connection.close()
827
828
829
class Client:
389
830
"""A representation of a client host served by this server.
390
831
391
832
Attributes:
392
833
approved: bool(); 'None' if not yet approved/disapproved
393
834
approval_delay: datetime.timedelta(); Time to wait for approval
394
835
approval_duration: datetime.timedelta(); Duration of one approval
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
836
checker: multiprocessing.Process(); a running checker process used
837
to see if the client lives. 'None' if no process is
838
running.
839
checker_callback_tag: a GLib event source tag, or None
399
840
checker_command: string; External command which is run to check
400
841
if client lives. %() expansions are done at
401
842
runtime with vars(self) as dict, so that for
402
843
instance %(name)s can be used in the command.
403
checker_initiator_tag: a gobject event source tag, or None
844
checker_initiator_tag: a GLib event source tag, or None
404
845
created: datetime.datetime(); (UTC) object creation
405
846
client_structure: Object describing what attributes a client has
406
847
and is used for storing the client at exit
407
848
current_checker_command: string; current running checker_command
408
disable_initiator_tag: a gobject event source tag, or None
849
disable_initiator_tag: a GLib event source tag, or None
409
850
enabled: bool()
410
851
fingerprint: string (40 or 32 hexadecimal digits); used to
411
uniquely identify the client
852
uniquely identify an OpenPGP client
853
key_id: string (64 hexadecimal digits); used to uniquely identify
854
a client using raw public keys
412
855
host: string; available for use by the checker command
413
856
interval: datetime.timedelta(); How often to start a new checker
414
857
last_approval_request: datetime.datetime(); (UTC) or None
415
858
last_checked_ok: datetime.datetime(); (UTC) or None
416
859
last_checker_status: integer between 0 and 255 reflecting exit
417
860
status of last checker. -1 reflects crashed
418
checker, or None.
861
checker, -2 means no checker completed yet.
862
last_checker_signal: The signal which killed the last checker, if
863
last_checker_status is -1
419
864
last_enabled: datetime.datetime(); (UTC) or None
420
865
name: string; from the config file, used in log messages and
421
866
D-Bus identifiers
422
867
secret: bytestring; sent verbatim (over TLS) to client
423
868
timeout: datetime.timedelta(); How long from last_checked_ok
424
869
until this client is disabled
425
extended_timeout: extra long timeout when password has been sent
870
extended_timeout: extra long timeout when secret has been sent
426
871
runtime_expansions: Allowed attributes for runtime expansion.
427
872
expires: datetime.datetime(); time (UTC) when a client will be
428
873
disabled, or None
874
server_settings: The server_settings dict from main()
429
875
"""
430
876
431
877
runtime_expansions = ("approval_delay", "approval_duration",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
878
"created", "enabled", "expires", "key_id",
879
"fingerprint", "host", "interval",
880
"last_approval_request", "last_checked_ok",
434
881
"last_enabled", "name", "timeout")
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)
882
client_defaults = {
883
"timeout": "PT5M",
884
"extended_timeout": "PT15M",
885
"interval": "PT2M",
886
"checker": "fping -q -- %%(host)s",
887
"host": "",
888
"approval_delay": "PT0S",
889
"approval_duration": "PT1S",
890
"approved_by_default": "True",
891
"enabled": "True",
892
}
460
893
461
894
@staticmethod
462
895
def config_parser(config):
470
903
for client_name in config.sections():
471
904
section = dict(config.items(client_name))
472
905
client = settings[client_name] = {}
473
906
474
907
client["host"] = section["host"]
475
908
# Reformat values from string types to Python types
476
909
client["approved_by_default"] = config.getboolean(
477
910
client_name, "approved_by_default")
478
911
client["enabled"] = config.getboolean(client_name,
479
912
"enabled")
480
913
914
# Uppercase and remove spaces from key_id and fingerprint
915
# for later comparison purposes with return value from the
916
# key_id() and fingerprint() functions
917
client["key_id"] = (section.get("key_id", "").upper()
918
.replace(" ", ""))
481
919
client["fingerprint"] = (section["fingerprint"].upper()
482
920
.replace(" ", ""))
483
921
if "secret" in section:
484
client["secret"] = section["secret"].decode("base64")
922
client["secret"] = codecs.decode(section["secret"]
923
.encode("utf-8"),
924
"base64")
485
925
elif "secfile" in section:
486
926
with open(os.path.expanduser(os.path.expandvars
487
927
(section["secfile"])),
488
928
"rb") as secfile:
489
929
client["secret"] = secfile.read()
490
930
else:
491
raise TypeError("No secret or secfile for section %s"
492
% section)
931
raise TypeError("No secret or secfile for section {}"
932
.format(section))
493
933
client["timeout"] = string_to_delta(section["timeout"])
494
934
client["extended_timeout"] = string_to_delta(
495
935
section["extended_timeout"])
501
941
client["checker_command"] = section["checker"]
502
942
client["last_approval_request"] = None
503
943
client["last_checked_ok"] = None
504
client["last_checker_status"] = None
505
944
client["last_checker_status"] = -2
945
506
946
return settings
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."""
947
948
def __init__(self, settings, name=None, server_settings=None):
513
949
self.name = name
950
if server_settings is None:
951
server_settings = {}
952
self.server_settings = server_settings
514
953
# adding all client settings
515
for setting, value in settings.iteritems():
954
for setting, value in settings.items():
516
955
setattr(self, setting, value)
517
956
518
957
if self.enabled:
519
958
if not hasattr(self, "last_enabled"):
520
959
self.last_enabled = datetime.datetime.utcnow()
524
963
else:
525
964
self.last_enabled = None
526
965
self.expires = None
527
966
528
967
logger.debug("Creating client %r", self.name)
529
# Uppercase and remove spaces from fingerprint for later
530
# comparison purposes with return value from the fingerprint()
531
# function
968
logger.debug(" Key ID: %s", self.key_id)
532
969
logger.debug(" Fingerprint: %s", self.fingerprint)
533
970
self.created = settings.get("created",
534
971
datetime.datetime.utcnow())
541
978
self.current_checker_command = None
542
979
self.approved = None
543
980
self.approvals_pending = 0
544
self.changedstate = (multiprocessing_manager
545
.Condition(multiprocessing_manager
546
.Lock()))
547
self.client_structure = [attr for attr in
548
self.__dict__.iterkeys()
981
self.changedstate = multiprocessing_manager.Condition(
982
multiprocessing_manager.Lock())
983
self.client_structure = [attr
984
for attr in self.__dict__.keys()
549
985
if not attr.startswith("_")]
550
986
self.client_structure.append("client_structure")
551
552
for name, t in inspect.getmembers(type(self),
553
lambda obj:
554
isinstance(obj,
555
property)):
987
988
for name, t in inspect.getmembers(
989
type(self), lambda obj: isinstance(obj, property)):
556
990
if not name.startswith("_"):
557
991
self.client_structure.append(name)
558
992
559
993
# Send notice to process children that client state has changed
560
994
def send_changedstate(self):
561
995
with self.changedstate:
562
996
self.changedstate.notify_all()
563
997
564
998
def enable(self):
565
999
"""Start this client's checker and timeout hooks"""
566
1000
if getattr(self, "enabled", False):
567
1001
# Already enabled
568
1002
return
569
self.send_changedstate()
570
1003
self.expires = datetime.datetime.utcnow() + self.timeout
571
1004
self.enabled = True
572
1005
self.last_enabled = datetime.datetime.utcnow()
573
1006
self.init_checker()
574
1007
self.send_changedstate()
1008
575
1009
def disable(self, quiet=True):
576
1010
"""Disable this client."""
577
1011
if not getattr(self, "enabled", False):
578
1012
return False
579
1013
if not quiet:
580
self.send_changedstate()
581
if not quiet:
582
1014
logger.info("Disabling client %s", self.name)
583
if getattr(self, "disable_initiator_tag", False):
584
gobject.source_remove(self.disable_initiator_tag)
1015
if getattr(self, "disable_initiator_tag", None) is not None:
1016
GLib.source_remove(self.disable_initiator_tag)
585
1017
self.disable_initiator_tag = None
586
1018
self.expires = None
587
if getattr(self, "checker_initiator_tag", False):
588
gobject.source_remove(self.checker_initiator_tag)
1019
if getattr(self, "checker_initiator_tag", None) is not None:
1020
GLib.source_remove(self.checker_initiator_tag)
589
1021
self.checker_initiator_tag = None
590
1022
self.stop_checker()
591
1023
self.enabled = False
592
# Do not run this again if called by a gobject.timeout_add
1024
if not quiet:
1025
self.send_changedstate()
1026
# Do not run this again if called by a GLib.timeout_add
593
1027
return False
594
1028
595
1029
def __del__(self):
596
1030
self.disable()
597
1031
598
1032
def init_checker(self):
599
1033
# Schedule a new checker to be started an 'interval' from now,
600
1034
# and every interval from then on.
601
self.checker_initiator_tag = (gobject.timeout_add
602
(self.interval_milliseconds(),
603
self.start_checker))
1035
if self.checker_initiator_tag is not None:
1036
GLib.source_remove(self.checker_initiator_tag)
1037
self.checker_initiator_tag = GLib.timeout_add(
1038
int(self.interval.total_seconds() * 1000),
1039
self.start_checker)
604
1040
# Schedule a disable() when 'timeout' has passed
605
self.disable_initiator_tag = (gobject.timeout_add
606
(self.timeout_milliseconds(),
607
self.disable))
1041
if self.disable_initiator_tag is not None:
1042
GLib.source_remove(self.disable_initiator_tag)
1043
self.disable_initiator_tag = GLib.timeout_add(
1044
int(self.timeout.total_seconds() * 1000), self.disable)
608
1045
# Also start a new checker *right now*.
609
1046
self.start_checker()
610
611
def checker_callback(self, pid, condition, command):
1047
1048
def checker_callback(self, source, condition, connection,
1049
command):
612
1050
"""The checker has completed, so take appropriate actions."""
1051
# Read return code from connection (see call_pipe)
1052
returncode = connection.recv()
1053
connection.close()
1054
if self.checker is not None:
1055
self.checker.join()
613
1056
self.checker_callback_tag = None
614
1057
self.checker = None
615
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
1058
1059
if returncode >= 0:
1060
self.last_checker_status = returncode
1061
self.last_checker_signal = None
617
1062
if self.last_checker_status == 0:
618
1063
logger.info("Checker for %(name)s succeeded",
619
1064
vars(self))
620
1065
self.checked_ok()
621
1066
else:
622
logger.info("Checker for %(name)s failed",
623
vars(self))
1067
logger.info("Checker for %(name)s failed", vars(self))
624
1068
else:
625
1069
self.last_checker_status = -1
1070
self.last_checker_signal = -returncode
626
1071
logger.warning("Checker for %(name)s crashed?",
627
1072
vars(self))
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
"""
1073
return False
1074
1075
def checked_ok(self):
1076
"""Assert that the client has been seen, alive and well."""
1077
self.last_checked_ok = datetime.datetime.utcnow()
1078
self.last_checker_status = 0
1079
self.last_checker_signal = None
1080
self.bump_timeout()
1081
1082
def bump_timeout(self, timeout=None):
1083
"""Bump up the timeout for this client."""
635
1084
if timeout is None:
636
1085
timeout = self.timeout
637
self.last_checked_ok = datetime.datetime.utcnow()
638
1086
if self.disable_initiator_tag is not None:
639
gobject.source_remove(self.disable_initiator_tag)
1087
GLib.source_remove(self.disable_initiator_tag)
1088
self.disable_initiator_tag = None
640
1089
if getattr(self, "enabled", False):
641
self.disable_initiator_tag = (gobject.timeout_add
642
(timedelta_to_milliseconds
643
(timeout), self.disable))
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(timeout.total_seconds() * 1000), self.disable)
644
1092
self.expires = datetime.datetime.utcnow() + timeout
645
1093
646
1094
def need_approval(self):
647
1095
self.last_approval_request = datetime.datetime.utcnow()
648
1096
649
1097
def start_checker(self):
650
1098
"""Start a new checker subprocess if one is not running.
651
1099
652
1100
If a checker already exists, leave it running and do
653
1101
nothing."""
654
1102
# The reason for not killing a running checker is that if we
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
1103
# did that, and if a checker (for some reason) started running
1104
# slowly and taking more than 'interval' time, then the client
1105
# would inevitably timeout, since no checker would get a
1106
# chance to run to completion. If we instead leave running
659
1107
# checkers alone, the checker would have to take more time
660
1108
# than 'timeout' for the client to be disabled, which is as it
661
1109
# should be.
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)
1110
1111
if self.checker is not None and not self.checker.is_alive():
1112
logger.warning("Checker was not alive; joining")
1113
self.checker.join()
1114
self.checker = None
676
1115
# Start a new checker if needed
677
1116
if self.checker is None:
1117
# Escape attributes for the shell
1118
escaped_attrs = {
1119
attr: re.escape(str(getattr(self, attr)))
1120
for attr in self.runtime_expansions}
678
1121
try:
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
1122
command = self.checker_command % escaped_attrs
1123
except TypeError as error:
1124
logger.error('Could not format string "%s"',
1125
self.checker_command,
1126
exc_info=error)
1127
return True # Try again later
697
1128
self.current_checker_command = command
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
1129
logger.info("Starting checker %r for %s", command,
1130
self.name)
1131
# We don't need to redirect stdout and stderr, since
1132
# in normal mode, that is already done by daemon(),
1133
# and in debug mode we don't want to. (Stdin is
1134
# always replaced by /dev/null.)
1135
# The exception is when not debugging but nevertheless
1136
# running in the foreground; use the previously
1137
# created wnull.
1138
popen_args = {"close_fds": True,
1139
"shell": True,
1140
"cwd": "/"}
1141
if (not self.server_settings["debug"]
1142
and self.server_settings["foreground"]):
1143
popen_args.update({"stdout": wnull,
1144
"stderr": wnull})
1145
pipe = multiprocessing.Pipe(duplex=False)
1146
self.checker = multiprocessing.Process(
1147
target=call_pipe,
1148
args=(pipe[1], subprocess.call, command),
1149
kwargs=popen_args)
1150
self.checker.start()
1151
self.checker_callback_tag = GLib.io_add_watch(
1152
GLib.IOChannel.unix_new(pipe[0].fileno()),
1153
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1154
self.checker_callback, pipe[0], command)
1155
# Re-run this periodically if run by GLib.timeout_add
722
1156
return True
723
1157
724
1158
def stop_checker(self):
725
1159
"""Force the checker process, if any, to stop."""
726
1160
if self.checker_callback_tag:
727
gobject.source_remove(self.checker_callback_tag)
1161
GLib.source_remove(self.checker_callback_tag)
728
1162
self.checker_callback_tag = None
729
1163
if getattr(self, "checker", None) is None:
730
1164
return
731
1165
logger.debug("Stopping checker for %(name)s", vars(self))
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
1166
self.checker.terminate()
740
1167
self.checker = None
741
1168
742
1169
743
def dbus_service_property(dbus_interface, signature="v",
744
access="readwrite", byte_arrays=False):
1170
def dbus_service_property(dbus_interface,
1171
signature="v",
1172
access="readwrite",
1173
byte_arrays=False):
745
1174
"""Decorators for marking methods of a DBusObjectWithProperties to
746
1175
become properties on the D-Bus.
747
1176
748
1177
The decorated method will be called with no arguments by "Get"
749
1178
and with one argument by "Set".
750
1179
751
1180
The parameters, where they are supported, are the same as
752
1181
dbus.service.method, except there is only "signature", since the
753
1182
type from Get() and the type sent to Set() is the same.
756
1185
# "Set" method, so we fail early here:
757
1186
if byte_arrays and signature != "ay":
758
1187
raise ValueError("Byte arrays not supported for non-'ay'"
759
" signature %r" % signature)
1188
" signature {!r}".format(signature))
1189
760
1190
def decorator(func):
761
1191
func._dbus_is_property = True
762
1192
func._dbus_interface = dbus_interface
765
1195
func._dbus_name = func.__name__
766
1196
if func._dbus_name.endswith("_dbus_property"):
767
1197
func._dbus_name = func._dbus_name[:-14]
768
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
769
return func
1198
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1199
return func
1200
1201
return decorator
1202
1203
1204
def dbus_interface_annotations(dbus_interface):
1205
"""Decorator for marking functions returning interface annotations
1206
1207
Usage:
1208
1209
@dbus_interface_annotations("org.example.Interface")
1210
def _foo(self): # Function name does not matter
1211
return {"org.freedesktop.DBus.Deprecated": "true",
1212
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1213
"false"}
1214
"""
1215
1216
def decorator(func):
1217
func._dbus_is_interface = True
1218
func._dbus_interface = dbus_interface
1219
func._dbus_name = dbus_interface
1220
return func
1221
1222
return decorator
1223
1224
1225
def dbus_annotations(annotations):
1226
"""Decorator to annotate D-Bus methods, signals or properties
1227
Usage:
1228
1229
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property."
1231
"EmitsChangedSignal": "false"})
1232
@dbus_service_property("org.example.Interface", signature="b",
1233
access="r")
1234
def Property_dbus_property(self):
1235
return dbus.Boolean(False)
1236
1237
See also the DBusObjectWithAnnotations class.
1238
"""
1239
1240
def decorator(func):
1241
func._dbus_annotations = annotations
1242
return func
1243
770
1244
return decorator
771
1245
772
1246
773
1247
class DBusPropertyException(dbus.exceptions.DBusException):
774
1248
"""A base class for D-Bus property-related exceptions
775
1249
"""
776
def __unicode__(self):
777
return unicode(str(self))
1250
pass
778
1251
779
1252
780
1253
class DBusPropertyAccessException(DBusPropertyException):
789
1262
pass
790
1263
791
1264
792
class DBusObjectWithProperties(dbus.service.Object):
1265
class DBusObjectWithAnnotations(dbus.service.Object):
1266
"""A D-Bus object with annotations.
1267
1268
Classes inheriting from this can use the dbus_annotations
1269
decorator to add annotations to methods or signals.
1270
"""
1271
1272
@staticmethod
1273
def _is_dbus_thing(thing):
1274
"""Returns a function testing if an attribute is a D-Bus thing
1275
1276
If called like _is_dbus_thing("method") it returns a function
1277
suitable for use as predicate to inspect.getmembers().
1278
"""
1279
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1280
False)
1281
1282
def _get_all_dbus_things(self, thing):
1283
"""Returns a generator of (name, attribute) pairs
1284
"""
1285
return ((getattr(athing.__get__(self), "_dbus_name", name),
1286
athing.__get__(self))
1287
for cls in self.__class__.__mro__
1288
for name, athing in
1289
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1290
1291
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1292
out_signature="s",
1293
path_keyword='object_path',
1294
connection_keyword='connection')
1295
def Introspect(self, object_path, connection):
1296
"""Overloading of standard D-Bus method.
1297
1298
Inserts annotation tags on methods and signals.
1299
"""
1300
xmlstring = dbus.service.Object.Introspect(self, object_path,
1301
connection)
1302
try:
1303
document = xml.dom.minidom.parseString(xmlstring)
1304
1305
for if_tag in document.getElementsByTagName("interface"):
1306
# Add annotation tags
1307
for typ in ("method", "signal"):
1308
for tag in if_tag.getElementsByTagName(typ):
1309
annots = dict()
1310
for name, prop in (self.
1311
_get_all_dbus_things(typ)):
1312
if (name == tag.getAttribute("name")
1313
and prop._dbus_interface
1314
== if_tag.getAttribute("name")):
1315
annots.update(getattr(
1316
prop, "_dbus_annotations", {}))
1317
for name, value in annots.items():
1318
ann_tag = document.createElement(
1319
"annotation")
1320
ann_tag.setAttribute("name", name)
1321
ann_tag.setAttribute("value", value)
1322
tag.appendChild(ann_tag)
1323
# Add interface annotation tags
1324
for annotation, value in dict(
1325
itertools.chain.from_iterable(
1326
annotations().items()
1327
for name, annotations
1328
in self._get_all_dbus_things("interface")
1329
if name == if_tag.getAttribute("name")
1330
)).items():
1331
ann_tag = document.createElement("annotation")
1332
ann_tag.setAttribute("name", annotation)
1333
ann_tag.setAttribute("value", value)
1334
if_tag.appendChild(ann_tag)
1335
# Fix argument name for the Introspect method itself
1336
if (if_tag.getAttribute("name")
1337
== dbus.INTROSPECTABLE_IFACE):
1338
for cn in if_tag.getElementsByTagName("method"):
1339
if cn.getAttribute("name") == "Introspect":
1340
for arg in cn.getElementsByTagName("arg"):
1341
if (arg.getAttribute("direction")
1342
== "out"):
1343
arg.setAttribute("name",
1344
"xml_data")
1345
xmlstring = document.toxml("utf-8")
1346
document.unlink()
1347
except (AttributeError, xml.dom.DOMException,
1348
xml.parsers.expat.ExpatError) as error:
1349
logger.error("Failed to override Introspection method",
1350
exc_info=error)
1351
return xmlstring
1352
1353
1354
class DBusObjectWithProperties(DBusObjectWithAnnotations):
793
1355
"""A D-Bus object with properties.
794
1356
795
1357
Classes inheriting from this can use the dbus_service_property
796
1358
decorator to expose methods as D-Bus properties. It exposes the
797
1359
standard Get(), Set(), and GetAll() methods on the D-Bus.
798
1360
"""
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
1361
812
1362
def _get_dbus_property(self, interface_name, property_name):
813
1363
"""Returns a bound method if one exists which is a D-Bus
814
1364
property with the specified name and interface.
815
1365
"""
816
for cls in self.__class__.__mro__:
817
for name, value in (inspect.getmembers
818
(cls, self._is_dbus_property)):
1366
for cls in self.__class__.__mro__:
1367
for name, value in inspect.getmembers(
1368
cls, self._is_dbus_thing("property")):
819
1369
if (value._dbus_name == property_name
820
1370
and value._dbus_interface == interface_name):
821
1371
return value.__get__(self)
822
1372
823
1373
# No such property
824
raise DBusPropertyNotFound(self.dbus_object_path + ":"
825
+ interface_name + "."
826
+ property_name)
827
828
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1374
raise DBusPropertyNotFound("{}:{}.{}".format(
1375
self.dbus_object_path, interface_name, property_name))
1376
1377
@classmethod
1378
def _get_all_interface_names(cls):
1379
"""Get a sequence of all interfaces supported by an object"""
1380
return (name for name in set(getattr(getattr(x, attr),
1381
"_dbus_interface", None)
1382
for x in (inspect.getmro(cls))
1383
for attr in dir(x))
1384
if name is not None)
1385
1386
@dbus.service.method(dbus.PROPERTIES_IFACE,
1387
in_signature="ss",
829
1388
out_signature="v")
830
1389
def Get(self, interface_name, property_name):
831
1390
"""Standard D-Bus property Get() method, see D-Bus standard.
837
1396
if not hasattr(value, "variant_level"):
838
1397
return value
839
1398
return type(value)(value, variant_level=value.variant_level+1)
840
1399
841
1400
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
842
1401
def Set(self, interface_name, property_name, value):
843
1402
"""Standard D-Bus property Set() method, see D-Bus standard.
849
1408
# The byte_arrays option is not supported yet on
850
1409
# signatures other than "ay".
851
1410
if prop._dbus_signature != "ay":
852
raise ValueError
853
value = dbus.ByteArray(b''.join(chr(byte)
854
for byte in value))
1411
raise ValueError("Byte arrays not supported for non-"
1412
"'ay' signature {!r}"
1413
.format(prop._dbus_signature))
1414
value = dbus.ByteArray(bytes(value))
855
1415
prop(value)
856
857
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1416
1417
@dbus.service.method(dbus.PROPERTIES_IFACE,
1418
in_signature="s",
858
1419
out_signature="a{sv}")
859
1420
def GetAll(self, interface_name):
860
1421
"""Standard D-Bus property GetAll() method, see D-Bus
861
1422
standard.
862
1423
863
1424
Note: Will not include properties with access="write".
864
1425
"""
865
1426
properties = {}
866
for name, prop in self._get_all_dbus_properties():
1427
for name, prop in self._get_all_dbus_things("property"):
867
1428
if (interface_name
868
1429
and interface_name != prop._dbus_interface):
869
1430
# Interface non-empty but did not match
875
1436
if not hasattr(value, "variant_level"):
876
1437
properties[name] = value
877
1438
continue
878
properties[name] = type(value)(value, variant_level=
879
value.variant_level+1)
1439
properties[name] = type(value)(
1440
value, variant_level=value.variant_level + 1)
880
1441
return dbus.Dictionary(properties, signature="sv")
881
1442
1443
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1444
def PropertiesChanged(self, interface_name, changed_properties,
1445
invalidated_properties):
1446
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1447
standard.
1448
"""
1449
pass
1450
882
1451
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
883
1452
out_signature="s",
884
1453
path_keyword='object_path',
885
1454
connection_keyword='connection')
886
1455
def Introspect(self, object_path, connection):
887
"""Standard D-Bus method, overloaded to insert property tags.
1456
"""Overloading of standard D-Bus method.
1457
1458
Inserts property tags and interface annotation tags.
888
1459
"""
889
xmlstring = dbus.service.Object.Introspect(self, object_path,
890
connection)
1460
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1461
object_path,
1462
connection)
891
1463
try:
892
1464
document = xml.dom.minidom.parseString(xmlstring)
1465
893
1466
def make_tag(document, name, prop):
894
1467
e = document.createElement("property")
895
1468
e.setAttribute("name", name)
896
1469
e.setAttribute("type", prop._dbus_signature)
897
1470
e.setAttribute("access", prop._dbus_access)
898
1471
return e
1472
899
1473
for if_tag in document.getElementsByTagName("interface"):
1474
# Add property tags
900
1475
for tag in (make_tag(document, name, prop)
901
1476
for name, prop
902
in self._get_all_dbus_properties()
1477
in self._get_all_dbus_things("property")
903
1478
if prop._dbus_interface
904
1479
== if_tag.getAttribute("name")):
905
1480
if_tag.appendChild(tag)
1481
# Add annotation tags for properties
1482
for tag in if_tag.getElementsByTagName("property"):
1483
annots = dict()
1484
for name, prop in self._get_all_dbus_things(
1485
"property"):
1486
if (name == tag.getAttribute("name")
1487
and prop._dbus_interface
1488
== if_tag.getAttribute("name")):
1489
annots.update(getattr(
1490
prop, "_dbus_annotations", {}))
1491
for name, value in annots.items():
1492
ann_tag = document.createElement(
1493
"annotation")
1494
ann_tag.setAttribute("name", name)
1495
ann_tag.setAttribute("value", value)
1496
tag.appendChild(ann_tag)
906
1497
# Add the names to the return values for the
907
1498
# "org.freedesktop.DBus.Properties" methods
908
1499
if (if_tag.getAttribute("name")
923
1514
except (AttributeError, xml.dom.DOMException,
924
1515
xml.parsers.expat.ExpatError) as error:
925
1516
logger.error("Failed to override Introspection method",
926
error)
927
return xmlstring
928
929
930
def datetime_to_dbus (dt, variant_level=0):
1517
exc_info=error)
1518
return xmlstring
1519
1520
1521
try:
1522
dbus.OBJECT_MANAGER_IFACE
1523
except AttributeError:
1524
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1525
1526
1527
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1528
"""A D-Bus object with an ObjectManager.
1529
1530
Classes inheriting from this exposes the standard
1531
GetManagedObjects call and the InterfacesAdded and
1532
InterfacesRemoved signals on the standard
1533
"org.freedesktop.DBus.ObjectManager" interface.
1534
1535
Note: No signals are sent automatically; they must be sent
1536
manually.
1537
"""
1538
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1539
out_signature="a{oa{sa{sv}}}")
1540
def GetManagedObjects(self):
1541
"""This function must be overridden"""
1542
raise NotImplementedError()
1543
1544
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1545
signature="oa{sa{sv}}")
1546
def InterfacesAdded(self, object_path, interfaces_and_properties):
1547
pass
1548
1549
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1550
def InterfacesRemoved(self, object_path, interfaces):
1551
pass
1552
1553
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1554
out_signature="s",
1555
path_keyword='object_path',
1556
connection_keyword='connection')
1557
def Introspect(self, object_path, connection):
1558
"""Overloading of standard D-Bus method.
1559
1560
Override return argument name of GetManagedObjects to be
1561
"objpath_interfaces_and_properties"
1562
"""
1563
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1564
object_path,
1565
connection)
1566
try:
1567
document = xml.dom.minidom.parseString(xmlstring)
1568
1569
for if_tag in document.getElementsByTagName("interface"):
1570
# Fix argument name for the GetManagedObjects method
1571
if (if_tag.getAttribute("name")
1572
== dbus.OBJECT_MANAGER_IFACE):
1573
for cn in if_tag.getElementsByTagName("method"):
1574
if (cn.getAttribute("name")
1575
== "GetManagedObjects"):
1576
for arg in cn.getElementsByTagName("arg"):
1577
if (arg.getAttribute("direction")
1578
== "out"):
1579
arg.setAttribute(
1580
"name",
1581
"objpath_interfaces"
1582
"_and_properties")
1583
xmlstring = document.toxml("utf-8")
1584
document.unlink()
1585
except (AttributeError, xml.dom.DOMException,
1586
xml.parsers.expat.ExpatError) as error:
1587
logger.error("Failed to override Introspection method",
1588
exc_info=error)
1589
return xmlstring
1590
1591
1592
def datetime_to_dbus(dt, variant_level=0):
931
1593
"""Convert a UTC datetime.datetime() to a D-Bus type."""
932
1594
if dt is None:
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.
1595
return dbus.String("", variant_level=variant_level)
1596
return dbus.String(dt.isoformat(), variant_level=variant_level)
1597
1598
1599
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1600
"""A class decorator; applied to a subclass of
1601
dbus.service.Object, it will add alternate D-Bus attributes with
1602
interface names according to the "alt_interface_names" mapping.
1603
Usage:
1604
1605
@alternate_dbus_interfaces({"org.example.Interface":
1606
"net.example.AlternateInterface"})
1607
class SampleDBusObject(dbus.service.Object):
1608
@dbus.service.method("org.example.Interface")
1609
def SampleDBusMethod():
1610
pass
1611
1612
The above "SampleDBusMethod" on "SampleDBusObject" will be
1613
reachable via two interfaces: "org.example.Interface" and
1614
"net.example.AlternateInterface", the latter of which will have
1615
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1616
"true", unless "deprecate" is passed with a False value.
1617
1618
This works for methods and signals, and also for D-Bus properties
1619
(from DBusObjectWithProperties) and interfaces (from the
1620
dbus_interface_annotations decorator).
942
1621
"""
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):
1622
1623
def wrapper(cls):
1624
for orig_interface_name, alt_interface_name in (
1625
alt_interface_names.items()):
1626
attr = {}
1627
interface_names = set()
1628
# Go though all attributes of the class
1629
for attrname, attribute in inspect.getmembers(cls):
950
1630
# Ignore non-D-Bus attributes, and D-Bus attributes
951
1631
# with the wrong interface name
952
1632
if (not hasattr(attribute, "_dbus_interface")
953
or not attribute._dbus_interface
954
.startswith("se.recompile.Mandos")):
1633
or not attribute._dbus_interface.startswith(
1634
orig_interface_name)):
955
1635
continue
956
1636
# Create an alternate D-Bus interface name based on
957
1637
# the current name
958
alt_interface = (attribute._dbus_interface
959
.replace("se.recompile.Mandos",
960
"se.bsnet.fukt.Mandos"))
1638
alt_interface = attribute._dbus_interface.replace(
1639
orig_interface_name, alt_interface_name)
1640
interface_names.add(alt_interface)
961
1641
# Is this a D-Bus signal?
962
1642
if getattr(attribute, "_dbus_is_signal", False):
963
# Extract the original non-method function by
964
# black magic
965
nonmethod_func = (dict(
1643
# Extract the original non-method undecorated
1644
# function by black magic
1645
if sys.version_info.major == 2:
1646
nonmethod_func = (dict(
966
1647
zip(attribute.func_code.co_freevars,
967
attribute.__closure__))["func"]
968
.cell_contents)
1648
attribute.__closure__))
1649
["func"].cell_contents)
1650
else:
1651
nonmethod_func = (dict(
1652
zip(attribute.__code__.co_freevars,
1653
attribute.__closure__))
1654
["func"].cell_contents)
969
1655
# Create a new, but exactly alike, function
970
1656
# object, and decorate it to be a new D-Bus signal
971
1657
# with the alternate D-Bus interface name
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)))
1658
new_function = copy_function(nonmethod_func)
1659
new_function = (dbus.service.signal(
1660
alt_interface,
1661
attribute._dbus_signature)(new_function))
1662
# Copy annotations, if any
1663
try:
1664
new_function._dbus_annotations = dict(
1665
attribute._dbus_annotations)
1666
except AttributeError:
1667
pass
1668
981
1669
# Define a creator of a function to call both the
982
# old and new functions, so both the old and new
983
# signals gets sent when the function is called
1670
# original and alternate functions, so both the
1671
# original and alternate signals gets sent when
1672
# the function is called
984
1673
def fixscope(func1, func2):
985
1674
"""This function is a scope container to pass
986
1675
func1 and func2 to the "call_both" function
987
1676
outside of its arguments"""
1677
1678
@functools.wraps(func2)
988
1679
def call_both(*args, **kwargs):
989
1680
"""This function will emit two D-Bus
990
1681
signals by calling func1 and func2"""
991
1682
func1(*args, **kwargs)
992
1683
func2(*args, **kwargs)
1684
# Make wrapper function look like a D-Bus
1685
# signal
1686
for name, attr in inspect.getmembers(func2):
1687
if name.startswith("_dbus_"):
1688
setattr(call_both, name, attr)
1689
993
1690
return call_both
994
1691
# Create the "call_both" function and add it to
995
1692
# the class
996
attr[attrname] = fixscope(attribute,
997
new_function)
1693
attr[attrname] = fixscope(attribute, new_function)
998
1694
# Is this a D-Bus method?
999
1695
elif getattr(attribute, "_dbus_is_method", False):
1000
1696
# Create a new, but exactly alike, function
1001
1697
# object. Decorate it to be a new D-Bus method
1002
1698
# with the alternate D-Bus interface name. Add it
1003
1699
# to the class.
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)))
1700
attr[attrname] = (
1701
dbus.service.method(
1702
alt_interface,
1703
attribute._dbus_in_signature,
1704
attribute._dbus_out_signature)
1705
(copy_function(attribute)))
1706
# Copy annotations, if any
1707
try:
1708
attr[attrname]._dbus_annotations = dict(
1709
attribute._dbus_annotations)
1710
except AttributeError:
1711
pass
1014
1712
# Is this a D-Bus property?
1015
1713
elif getattr(attribute, "_dbus_is_property", False):
1016
1714
# Create a new, but exactly alike, function
1017
1715
# object, and decorate it to be a new D-Bus
1018
1716
# property with the alternate D-Bus interface
1019
1717
# name. Add it to the class.
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
1718
attr[attrname] = (dbus_service_property(
1719
alt_interface, attribute._dbus_signature,
1720
attribute._dbus_access,
1721
attribute._dbus_get_args_options
1722
["byte_arrays"])
1723
(copy_function(attribute)))
1724
# Copy annotations, if any
1725
try:
1726
attr[attrname]._dbus_annotations = dict(
1727
attribute._dbus_annotations)
1728
except AttributeError:
1729
pass
1730
# Is this a D-Bus interface?
1731
elif getattr(attribute, "_dbus_is_interface", False):
1732
# Create a new, but exactly alike, function
1733
# object. Decorate it to be a new D-Bus interface
1734
# with the alternate D-Bus interface name. Add it
1735
# to the class.
1736
attr[attrname] = (
1737
dbus_interface_annotations(alt_interface)
1738
(copy_function(attribute)))
1739
if deprecate:
1740
# Deprecate all alternate interfaces
1741
iname = "_AlternateDBusNames_interface_annotation{}"
1742
for interface_name in interface_names:
1743
1744
@dbus_interface_annotations(interface_name)
1745
def func(self):
1746
return {"org.freedesktop.DBus.Deprecated":
1747
"true"}
1748
# Find an unused name
1749
for aname in (iname.format(i)
1750
for i in itertools.count()):
1751
if aname not in attr:
1752
attr[aname] = func
1753
break
1754
if interface_names:
1755
# Replace the class with a new subclass of it with
1756
# methods, signals, etc. as created above.
1757
if sys.version_info.major == 2:
1758
cls = type(b"{}Alternate".format(cls.__name__),
1759
(cls, ), attr)
1760
else:
1761
cls = type("{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
return cls
1764
1765
return wrapper
1766
1767
1768
@alternate_dbus_interfaces({"se.recompile.Mandos":
1769
"se.bsnet.fukt.Mandos"})
1036
1770
class ClientDBus(Client, DBusObjectWithProperties):
1037
1771
"""A Client class using D-Bus
1038
1772
1039
1773
Attributes:
1040
1774
dbus_object_path: dbus.ObjectPath
1041
1775
bus: dbus.SystemBus()
1042
1776
"""
1043
1777
1044
1778
runtime_expansions = (Client.runtime_expansions
1045
+ ("dbus_object_path",))
1046
1779
+ ("dbus_object_path", ))
1780
1781
_interface = "se.recompile.Mandos.Client"
1782
1047
1783
# dbus.service.Object doesn't use super(), so we can't either.
1048
1049
def __init__(self, bus = None, *args, **kwargs):
1784
1785
def __init__(self, bus=None, *args, **kwargs):
1050
1786
self.bus = bus
1051
1787
Client.__init__(self, *args, **kwargs)
1052
self._approvals_pending = 0
1053
1054
self._approvals_pending = 0
1055
1788
# Only now, when this client is initialized, can it show up on
1056
1789
# the D-Bus
1057
client_object_name = unicode(self.name).translate(
1790
client_object_name = str(self.name).translate(
1058
1791
{ord("."): ord("_"),
1059
1792
ord("-"): ord("_")})
1060
self.dbus_object_path = (dbus.ObjectPath
1061
("/clients/" + client_object_name))
1793
self.dbus_object_path = dbus.ObjectPath(
1794
"/clients/" + client_object_name)
1062
1795
DBusObjectWithProperties.__init__(self, self.bus,
1063
1796
self.dbus_object_path)
1064
1065
def notifychangeproperty(transform_func,
1066
dbus_name, type_func=lambda x: x,
1067
variant_level=1):
1797
1798
def notifychangeproperty(transform_func, dbus_name,
1799
type_func=lambda x: x,
1800
variant_level=1,
1801
invalidate_only=False,
1802
_interface=_interface):
1068
1803
""" Modify a variable so that it's a property which announces
1069
1804
its changes to DBus.
1070
1805
1071
1806
transform_fun: Function that takes a value and a variant_level
1072
1807
and transforms it to a D-Bus type.
1073
1808
dbus_name: D-Bus name of the variable
1075
1810
to the D-Bus. Default: no transform
1076
1811
variant_level: D-Bus variant level. Default: 1
1077
1812
"""
1078
attrname = "_{0}".format(dbus_name)
1813
attrname = "_{}".format(dbus_name)
1814
1079
1815
def setter(self, value):
1080
1816
if hasattr(self, "dbus_object_path"):
1081
1817
if (not hasattr(self, attrname) or
1082
1818
type_func(getattr(self, attrname, None))
1083
1819
!= type_func(value)):
1084
dbus_value = transform_func(type_func(value),
1085
variant_level
1086
=variant_level)
1087
self.PropertyChanged(dbus.String(dbus_name),
1088
dbus_value)
1820
if invalidate_only:
1821
self.PropertiesChanged(
1822
_interface, dbus.Dictionary(),
1823
dbus.Array((dbus_name, )))
1824
else:
1825
dbus_value = transform_func(
1826
type_func(value),
1827
variant_level=variant_level)
1828
self.PropertyChanged(dbus.String(dbus_name),
1829
dbus_value)
1830
self.PropertiesChanged(
1831
_interface,
1832
dbus.Dictionary({dbus.String(dbus_name):
1833
dbus_value}),
1834
dbus.Array())
1089
1835
setattr(self, attrname, value)
1090
1836
1091
1837
return property(lambda self: getattr(self, attrname), setter)
1092
1093
1838
1094
1839
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1095
1840
approvals_pending = notifychangeproperty(dbus.Boolean,
1096
1841
"ApprovalPending",
1097
type_func = bool)
1842
type_func=bool)
1098
1843
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1099
1844
last_enabled = notifychangeproperty(datetime_to_dbus,
1100
1845
"LastEnabled")
1101
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1102
type_func = lambda checker:
1103
checker is not None)
1846
checker = notifychangeproperty(
1847
dbus.Boolean, "CheckerRunning",
1848
type_func=lambda checker: checker is not None)
1104
1849
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1105
1850
"LastCheckedOK")
1851
last_checker_status = notifychangeproperty(dbus.Int16,
1852
"LastCheckerStatus")
1106
1853
last_approval_request = notifychangeproperty(
1107
1854
datetime_to_dbus, "LastApprovalRequest")
1108
1855
approved_by_default = notifychangeproperty(dbus.Boolean,
1109
1856
"ApprovedByDefault")
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1111
"ApprovalDelay",
1112
type_func =
1113
timedelta_to_milliseconds)
1857
approval_delay = notifychangeproperty(
1858
dbus.UInt64, "ApprovalDelay",
1859
type_func=lambda td: td.total_seconds() * 1000)
1114
1860
approval_duration = notifychangeproperty(
1115
1861
dbus.UInt64, "ApprovalDuration",
1116
type_func = timedelta_to_milliseconds)
1862
type_func=lambda td: td.total_seconds() * 1000)
1117
1863
host = notifychangeproperty(dbus.String, "Host")
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
type_func =
1120
timedelta_to_milliseconds)
1864
timeout = notifychangeproperty(
1865
dbus.UInt64, "Timeout",
1866
type_func=lambda td: td.total_seconds() * 1000)
1121
1867
extended_timeout = notifychangeproperty(
1122
1868
dbus.UInt64, "ExtendedTimeout",
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1125
"Interval",
1126
type_func =
1127
timedelta_to_milliseconds)
1869
type_func=lambda td: td.total_seconds() * 1000)
1870
interval = notifychangeproperty(
1871
dbus.UInt64, "Interval",
1872
type_func=lambda td: td.total_seconds() * 1000)
1128
1873
checker_command = notifychangeproperty(dbus.String, "Checker")
1129
1874
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1875
invalidate_only=True)
1876
1130
1877
del notifychangeproperty
1131
1878
1132
1879
def __del__(self, *args, **kwargs):
1133
1880
try:
1134
1881
self.remove_from_connection()
1137
1884
if hasattr(DBusObjectWithProperties, "__del__"):
1138
1885
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1139
1886
Client.__del__(self, *args, **kwargs)
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)
1887
1888
def checker_callback(self, source, condition,
1889
connection, command, *args, **kwargs):
1890
ret = Client.checker_callback(self, source, condition,
1891
connection, command, *args,
1892
**kwargs)
1893
exitstatus = self.last_checker_status
1894
if exitstatus >= 0:
1147
1895
# Emit D-Bus signal
1148
1896
self.CheckerCompleted(dbus.Int16(exitstatus),
1149
dbus.Int64(condition),
1897
# This is specific to GNU libC
1898
dbus.Int64(exitstatus << 8),
1150
1899
dbus.String(command))
1151
1900
else:
1152
1901
# Emit D-Bus signal
1153
1902
self.CheckerCompleted(dbus.Int16(-1),
1154
dbus.Int64(condition),
1903
dbus.Int64(
1904
# This is specific to GNU libC
1905
(exitstatus << 8)
1906
| self.last_checker_signal),
1155
1907
dbus.String(command))
1156
1157
return Client.checker_callback(self, pid, condition, command,
1158
*args, **kwargs)
1159
1908
return ret
1909
1160
1910
def start_checker(self, *args, **kwargs):
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
1911
old_checker_pid = getattr(self.checker, "pid", None)
1166
1912
r = Client.start_checker(self, *args, **kwargs)
1167
1913
# Only if new checker process was started
1168
1914
if (self.checker is not None
1170
1916
# Emit D-Bus signal
1171
1917
self.CheckerStarted(self.current_checker_command)
1172
1918
return r
1173
1919
1174
1920
def _reset_approved(self):
1175
1921
self.approved = None
1176
1922
return False
1177
1923
1178
1924
def approve(self, value=True):
1179
self.send_changedstate()
1180
1925
self.approved = value
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
1926
GLib.timeout_add(int(self.approval_duration.total_seconds()
1927
* 1000), self._reset_approved)
1928
self.send_changedstate()
1929
1930
# D-Bus methods, signals & properties
1931
1932
# Interfaces
1933
1934
# Signals
1935
1191
1936
# CheckerCompleted - signal
1192
1937
@dbus.service.signal(_interface, signature="nxs")
1193
1938
def CheckerCompleted(self, exitcode, waitstatus, command):
1194
1939
"D-Bus signal"
1195
1940
pass
1196
1941
1197
1942
# CheckerStarted - signal
1198
1943
@dbus.service.signal(_interface, signature="s")
1199
1944
def CheckerStarted(self, command):
1200
1945
"D-Bus signal"
1201
1946
pass
1202
1947
1203
1948
# PropertyChanged - signal
1949
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1204
1950
@dbus.service.signal(_interface, signature="sv")
1205
1951
def PropertyChanged(self, property, value):
1206
1952
"D-Bus signal"
1207
1953
pass
1208
1954
1209
1955
# GotSecret - signal
1210
1956
@dbus.service.signal(_interface)
1211
1957
def GotSecret(self):
1214
1960
server to mandos-client
1215
1961
"""
1216
1962
pass
1217
1963
1218
1964
# Rejected - signal
1219
1965
@dbus.service.signal(_interface, signature="s")
1220
1966
def Rejected(self, reason):
1221
1967
"D-Bus signal"
1222
1968
pass
1223
1969
1224
1970
# NeedApproval - signal
1225
1971
@dbus.service.signal(_interface, signature="tb")
1226
1972
def NeedApproval(self, timeout, default):
1227
1973
"D-Bus signal"
1228
1974
return self.need_approval()
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
1975
1976
# Methods
1977
1240
1978
# Approve - method
1241
1979
@dbus.service.method(_interface, in_signature="b")
1242
1980
def Approve(self, value):
1243
1981
self.approve(value)
1244
1982
1245
1983
# CheckedOK - method
1246
1984
@dbus.service.method(_interface)
1247
1985
def CheckedOK(self):
1248
1986
self.checked_ok()
1249
1987
1250
1988
# Enable - method
1989
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1251
1990
@dbus.service.method(_interface)
1252
1991
def Enable(self):
1253
1992
"D-Bus method"
1254
1993
self.enable()
1255
1994
1256
1995
# StartChecker - method
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1257
1997
@dbus.service.method(_interface)
1258
1998
def StartChecker(self):
1259
1999
"D-Bus method"
1260
2000
self.start_checker()
1261
2001
1262
2002
# Disable - method
2003
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1263
2004
@dbus.service.method(_interface)
1264
2005
def Disable(self):
1265
2006
"D-Bus method"
1266
2007
self.disable()
1267
2008
1268
2009
# StopChecker - method
2010
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1269
2011
@dbus.service.method(_interface)
1270
2012
def StopChecker(self):
1271
2013
self.stop_checker()
1272
1273
## Properties
1274
2014
2015
# Properties
2016
1275
2017
# ApprovalPending - property
1276
2018
@dbus_service_property(_interface, signature="b", access="read")
1277
2019
def ApprovalPending_dbus_property(self):
1278
2020
return dbus.Boolean(bool(self.approvals_pending))
1279
2021
1280
2022
# ApprovedByDefault - property
1281
@dbus_service_property(_interface, signature="b",
2023
@dbus_service_property(_interface,
2024
signature="b",
1282
2025
access="readwrite")
1283
2026
def ApprovedByDefault_dbus_property(self, value=None):
1284
2027
if value is None: # get
1285
2028
return dbus.Boolean(self.approved_by_default)
1286
2029
self.approved_by_default = bool(value)
1287
2030
1288
2031
# ApprovalDelay - property
1289
@dbus_service_property(_interface, signature="t",
2032
@dbus_service_property(_interface,
2033
signature="t",
1290
2034
access="readwrite")
1291
2035
def ApprovalDelay_dbus_property(self, value=None):
1292
2036
if value is None: # get
1293
return dbus.UInt64(self.approval_delay_milliseconds())
2037
return dbus.UInt64(self.approval_delay.total_seconds()
2038
* 1000)
1294
2039
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1295
2040
1296
2041
# ApprovalDuration - property
1297
@dbus_service_property(_interface, signature="t",
2042
@dbus_service_property(_interface,
2043
signature="t",
1298
2044
access="readwrite")
1299
2045
def ApprovalDuration_dbus_property(self, value=None):
1300
2046
if value is None: # get
1301
return dbus.UInt64(timedelta_to_milliseconds(
1302
self.approval_duration))
2047
return dbus.UInt64(self.approval_duration.total_seconds()
2048
* 1000)
1303
2049
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1304
2050
1305
2051
# Name - property
2052
@dbus_annotations(
2053
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1306
2054
@dbus_service_property(_interface, signature="s", access="read")
1307
2055
def Name_dbus_property(self):
1308
2056
return dbus.String(self.name)
1309
2057
2058
# KeyID - property
2059
@dbus_annotations(
2060
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2061
@dbus_service_property(_interface, signature="s", access="read")
2062
def KeyID_dbus_property(self):
2063
return dbus.String(self.key_id)
2064
1310
2065
# Fingerprint - property
2066
@dbus_annotations(
2067
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1311
2068
@dbus_service_property(_interface, signature="s", access="read")
1312
2069
def Fingerprint_dbus_property(self):
1313
2070
return dbus.String(self.fingerprint)
1314
2071
1315
2072
# Host - property
1316
@dbus_service_property(_interface, signature="s",
2073
@dbus_service_property(_interface,
2074
signature="s",
1317
2075
access="readwrite")
1318
2076
def Host_dbus_property(self, value=None):
1319
2077
if value is None: # get
1320
2078
return dbus.String(self.host)
1321
self.host = unicode(value)
1322
2079
self.host = str(value)
2080
1323
2081
# Created - property
2082
@dbus_annotations(
2083
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1324
2084
@dbus_service_property(_interface, signature="s", access="read")
1325
2085
def Created_dbus_property(self):
1326
2086
return datetime_to_dbus(self.created)
1327
2087
1328
2088
# LastEnabled - property
1329
2089
@dbus_service_property(_interface, signature="s", access="read")
1330
2090
def LastEnabled_dbus_property(self):
1331
2091
return datetime_to_dbus(self.last_enabled)
1332
2092
1333
2093
# Enabled - property
1334
@dbus_service_property(_interface, signature="b",
2094
@dbus_service_property(_interface,
2095
signature="b",
1335
2096
access="readwrite")
1336
2097
def Enabled_dbus_property(self, value=None):
1337
2098
if value is None: # get
1340
2101
self.enable()
1341
2102
else:
1342
2103
self.disable()
1343
2104
1344
2105
# LastCheckedOK - property
1345
@dbus_service_property(_interface, signature="s",
2106
@dbus_service_property(_interface,
2107
signature="s",
1346
2108
access="readwrite")
1347
2109
def LastCheckedOK_dbus_property(self, value=None):
1348
2110
if value is not None:
1349
2111
self.checked_ok()
1350
2112
return
1351
2113
return datetime_to_dbus(self.last_checked_ok)
1352
2114
2115
# LastCheckerStatus - property
2116
@dbus_service_property(_interface, signature="n", access="read")
2117
def LastCheckerStatus_dbus_property(self):
2118
return dbus.Int16(self.last_checker_status)
2119
1353
2120
# Expires - property
1354
2121
@dbus_service_property(_interface, signature="s", access="read")
1355
2122
def Expires_dbus_property(self):
1356
2123
return datetime_to_dbus(self.expires)
1357
2124
1358
2125
# LastApprovalRequest - property
1359
2126
@dbus_service_property(_interface, signature="s", access="read")
1360
2127
def LastApprovalRequest_dbus_property(self):
1361
2128
return datetime_to_dbus(self.last_approval_request)
1362
2129
1363
2130
# Timeout - property
1364
@dbus_service_property(_interface, signature="t",
2131
@dbus_service_property(_interface,
2132
signature="t",
1365
2133
access="readwrite")
1366
2134
def Timeout_dbus_property(self, value=None):
1367
2135
if value is None: # get
1368
return dbus.UInt64(self.timeout_milliseconds())
2136
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2137
old_timeout = self.timeout
1369
2138
self.timeout = datetime.timedelta(0, 0, 0, value)
1370
# Reschedule timeout
2139
# Reschedule disabling
1371
2140
if self.enabled:
1372
2141
now = datetime.datetime.utcnow()
1373
time_to_die = timedelta_to_milliseconds(
1374
(self.last_checked_ok + self.timeout) - now)
1375
if time_to_die <= 0:
2142
self.expires += self.timeout - old_timeout
2143
if self.expires <= now:
1376
2144
# The timeout has passed
1377
2145
self.disable()
1378
2146
else:
1379
self.expires = (now +
1380
datetime.timedelta(milliseconds =
1381
time_to_die))
1382
2147
if (getattr(self, "disable_initiator_tag", None)
1383
2148
is None):
1384
2149
return
1385
gobject.source_remove(self.disable_initiator_tag)
1386
self.disable_initiator_tag = (gobject.timeout_add
1387
(time_to_die,
1388
self.disable))
1389
2150
GLib.source_remove(self.disable_initiator_tag)
2151
self.disable_initiator_tag = GLib.timeout_add(
2152
int((self.expires - now).total_seconds() * 1000),
2153
self.disable)
2154
1390
2155
# ExtendedTimeout - property
1391
@dbus_service_property(_interface, signature="t",
2156
@dbus_service_property(_interface,
2157
signature="t",
1392
2158
access="readwrite")
1393
2159
def ExtendedTimeout_dbus_property(self, value=None):
1394
2160
if value is None: # get
1395
return dbus.UInt64(self.extended_timeout_milliseconds())
2161
return dbus.UInt64(self.extended_timeout.total_seconds()
2162
* 1000)
1396
2163
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1397
2164
1398
2165
# Interval - property
1399
@dbus_service_property(_interface, signature="t",
2166
@dbus_service_property(_interface,
2167
signature="t",
1400
2168
access="readwrite")
1401
2169
def Interval_dbus_property(self, value=None):
1402
2170
if value is None: # get
1403
return dbus.UInt64(self.interval_milliseconds())
2171
return dbus.UInt64(self.interval.total_seconds() * 1000)
1404
2172
self.interval = datetime.timedelta(0, 0, 0, value)
1405
2173
if getattr(self, "checker_initiator_tag", None) is None:
1406
2174
return
1407
2175
if self.enabled:
1408
2176
# Reschedule checker run
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
2177
GLib.source_remove(self.checker_initiator_tag)
2178
self.checker_initiator_tag = GLib.timeout_add(
2179
value, self.start_checker)
2180
self.start_checker() # Start one now, too
2181
1414
2182
# Checker - property
1415
@dbus_service_property(_interface, signature="s",
2183
@dbus_service_property(_interface,
2184
signature="s",
1416
2185
access="readwrite")
1417
2186
def Checker_dbus_property(self, value=None):
1418
2187
if value is None: # get
1419
2188
return dbus.String(self.checker_command)
1420
self.checker_command = unicode(value)
1421
2189
self.checker_command = str(value)
2190
1422
2191
# CheckerRunning - property
1423
@dbus_service_property(_interface, signature="b",
2192
@dbus_service_property(_interface,
2193
signature="b",
1424
2194
access="readwrite")
1425
2195
def CheckerRunning_dbus_property(self, value=None):
1426
2196
if value is None: # get
1429
2199
self.start_checker()
1430
2200
else:
1431
2201
self.stop_checker()
1432
2202
1433
2203
# ObjectPath - property
2204
@dbus_annotations(
2205
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2206
"org.freedesktop.DBus.Deprecated": "true"})
1434
2207
@dbus_service_property(_interface, signature="o", access="read")
1435
2208
def ObjectPath_dbus_property(self):
1436
return self.dbus_object_path # is already a dbus.ObjectPath
1437
2209
return self.dbus_object_path # is already a dbus.ObjectPath
2210
1438
2211
# Secret = property
1439
@dbus_service_property(_interface, signature="ay",
1440
access="write", byte_arrays=True)
2212
@dbus_annotations(
2213
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2214
"invalidates"})
2215
@dbus_service_property(_interface,
2216
signature="ay",
2217
access="write",
2218
byte_arrays=True)
1441
2219
def Secret_dbus_property(self, value):
1442
self.secret = str(value)
1443
2220
self.secret = bytes(value)
2221
1444
2222
del _interface
1445
2223
1446
2224
1447
class ProxyClient(object):
1448
def __init__(self, child_pipe, fpr, address):
2225
class ProxyClient:
2226
def __init__(self, child_pipe, key_id, fpr, address):
1449
2227
self._pipe = child_pipe
1450
self._pipe.send(('init', fpr, address))
2228
self._pipe.send(('init', key_id, fpr, address))
1451
2229
if not self._pipe.recv():
1452
raise KeyError()
1453
2230
raise KeyError(key_id or fpr)
2231
1454
2232
def __getattribute__(self, name):
1455
2233
if name == '_pipe':
1456
2234
return super(ProxyClient, self).__getattribute__(name)
1459
2237
if data[0] == 'data':
1460
2238
return data[1]
1461
2239
if data[0] == 'function':
2240
1462
2241
def func(*args, **kwargs):
1463
2242
self._pipe.send(('funcall', name, args, kwargs))
1464
2243
return self._pipe.recv()[1]
2244
1465
2245
return func
1466
2246
1467
2247
def __setattr__(self, name, value):
1468
2248
if name == '_pipe':
1469
2249
return super(ProxyClient, self).__setattr__(name, value)
1470
2250
self._pipe.send(('setattr', name, value))
1471
2251
1472
2252
1473
class ClientDBusTransitional(ClientDBus):
1474
__metaclass__ = AlternateDBusNamesMetaclass
1475
1476
1477
2253
class ClientHandler(socketserver.BaseRequestHandler, object):
1478
2254
"""A class to handle client connections.
1479
2255
1480
2256
Instantiated once for each connection to handle it.
1481
2257
Note: This will run in its own forked process."""
1482
2258
1483
2259
def handle(self):
1484
2260
with contextlib.closing(self.server.child_pipe) as child_pipe:
1485
2261
logger.info("TCP connection from: %s",
1486
unicode(self.client_address))
2262
str(self.client_address))
1487
2263
logger.debug("Pipe FD: %d",
1488
2264
self.server.child_pipe.fileno())
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"))
2265
2266
session = gnutls.ClientSession(self.request)
2267
2268
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2269
# "+AES-256-CBC", "+SHA1",
2270
# "+COMP-NULL", "+CTYPE-OPENPGP",
2271
# "+DHE-DSS"))
1504
2272
# Use a fallback default, since this MUST be set.
1505
2273
priority = self.server.gnutls_priority
1506
2274
if priority is None:
1507
2275
priority = "NORMAL"
1508
(gnutls.library.functions
1509
.gnutls_priority_set_direct(session._c_object,
1510
priority, None))
1511
2276
gnutls.priority_set_direct(session._c_object,
2277
priority.encode("utf-8"),
2278
None)
2279
1512
2280
# Start communication using the Mandos protocol
1513
2281
# Get protocol number
1514
2282
line = self.request.makefile().readline()
1515
2283
logger.debug("Protocol version: %r", line)
1516
2284
try:
1517
2285
if int(line.strip().split()[0]) > 1:
1518
raise RuntimeError
2286
raise RuntimeError(line)
1519
2287
except (ValueError, IndexError, RuntimeError) as error:
1520
2288
logger.error("Unknown protocol version: %s", error)
1521
2289
return
1522
2290
1523
2291
# Start GnuTLS connection
1524
2292
try:
1525
2293
session.handshake()
1526
except gnutls.errors.GNUTLSError as error:
2294
except gnutls.Error as error:
1527
2295
logger.warning("Handshake failed: %s", error)
1528
2296
# Do not run session.bye() here: the session is not
1529
2297
# established. Just abandon the request.
1530
2298
return
1531
2299
logger.debug("Handshake succeeded")
1532
2300
1533
2301
approval_required = False
1534
2302
try:
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,
2303
if gnutls.has_rawpk:
2304
fpr = b""
2305
try:
2306
key_id = self.key_id(
2307
self.peer_certificate(session))
2308
except (TypeError, gnutls.Error) as error:
2309
logger.warning("Bad certificate: %s", error)
2310
return
2311
logger.debug("Key ID: %s", key_id)
2312
2313
else:
2314
key_id = b""
2315
try:
2316
fpr = self.fingerprint(
2317
self.peer_certificate(session))
2318
except (TypeError, gnutls.Error) as error:
2319
logger.warning("Bad certificate: %s", error)
2320
return
2321
logger.debug("Fingerprint: %s", fpr)
2322
2323
try:
2324
client = ProxyClient(child_pipe, key_id, fpr,
1546
2325
self.client_address)
1547
2326
except KeyError:
1548
2327
return
1549
1550
if self.server.use_dbus:
1551
# Emit D-Bus signal
1552
client.NewRequest(str(self.client_address))
1553
2328
1554
2329
if client.approval_delay:
1555
2330
delay = client.approval_delay
1556
2331
client.approvals_pending += 1
1557
2332
approval_required = True
1558
2333
1559
2334
while True:
1560
2335
if not client.enabled:
1561
2336
logger.info("Client %s is disabled",
1562
client.name)
2337
client.name)
1563
2338
if self.server.use_dbus:
1564
2339
# Emit D-Bus signal
1565
2340
client.Rejected("Disabled")
1566
2341
return
1567
2342
1568
2343
if client.approved or not client.approval_delay:
1569
#We are approved or approval is disabled
2344
# We are approved or approval is disabled
1570
2345
break
1571
2346
elif client.approved is None:
1572
2347
logger.info("Client %s needs approval",
1574
2349
if self.server.use_dbus:
1575
2350
# Emit D-Bus signal
1576
2351
client.NeedApproval(
1577
client.approval_delay_milliseconds(),
1578
client.approved_by_default)
2352
client.approval_delay.total_seconds()
2353
* 1000, client.approved_by_default)
1579
2354
else:
1580
2355
logger.warning("Client %s was not approved",
1581
2356
client.name)
1583
2358
# Emit D-Bus signal
1584
2359
client.Rejected("Denied")
1585
2360
return
1586
1587
#wait until timeout or approved
2361
2362
# wait until timeout or approved
1588
2363
time = datetime.datetime.now()
1589
2364
client.changedstate.acquire()
1590
(client.changedstate.wait
1591
(float(client.timedelta_to_milliseconds(delay)
1592
/ 1000)))
2365
client.changedstate.wait(delay.total_seconds())
1593
2366
client.changedstate.release()
1594
2367
time2 = datetime.datetime.now()
1595
2368
if (time2 - time) >= delay:
1605
2378
break
1606
2379
else:
1607
2380
delay -= time2 - time
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
2381
2382
try:
2383
session.send(client.secret)
2384
except gnutls.Error as error:
2385
logger.warning("gnutls send failed",
2386
exc_info=error)
2387
return
2388
1621
2389
logger.info("Sending secret to %s", client.name)
1622
2390
# bump the timeout using extended_timeout
1623
client.checked_ok(client.extended_timeout)
2391
client.bump_timeout(client.extended_timeout)
1624
2392
if self.server.use_dbus:
1625
2393
# Emit D-Bus signal
1626
2394
client.GotSecret()
1627
2395
1628
2396
finally:
1629
2397
if approval_required:
1630
2398
client.approvals_pending -= 1
1631
2399
try:
1632
2400
session.bye()
1633
except gnutls.errors.GNUTLSError as error:
1634
logger.warning("GnuTLS bye failed")
1635
2401
except gnutls.Error as error:
2402
logger.warning("GnuTLS bye failed",
2403
exc_info=error)
2404
1636
2405
@staticmethod
1637
2406
def peer_certificate(session):
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
2407
"Return the peer's certificate as a bytestring"
2408
try:
2409
cert_type = gnutls.certificate_type_get2(session._c_object,
2410
gnutls.CTYPE_PEERS)
2411
except AttributeError:
2412
cert_type = gnutls.certificate_type_get(session._c_object)
2413
if gnutls.has_rawpk:
2414
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2415
else:
2416
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2417
# If not a valid certificate type...
2418
if cert_type not in valid_cert_types:
2419
logger.info("Cert type %r not in %r", cert_type,
2420
valid_cert_types)
2421
# ...return invalid data
2422
return b""
1645
2423
list_size = ctypes.c_uint(1)
1646
cert_list = (gnutls.library.functions
1647
.gnutls_certificate_get_peers
2424
cert_list = (gnutls.certificate_get_peers
1648
2425
(session._c_object, ctypes.byref(list_size)))
1649
2426
if not bool(cert_list) and list_size.value != 0:
1650
raise gnutls.errors.GNUTLSError("error getting peer"
1651
" certificate")
2427
raise gnutls.Error("error getting peer certificate")
1652
2428
if list_size.value == 0:
1653
2429
return None
1654
2430
cert = cert_list[0]
1655
2431
return ctypes.string_at(cert.data, cert.size)
1656
2432
2433
@staticmethod
2434
def key_id(certificate):
2435
"Convert a certificate bytestring to a hexdigit key ID"
2436
# New GnuTLS "datum" with the public key
2437
datum = gnutls.datum_t(
2438
ctypes.cast(ctypes.c_char_p(certificate),
2439
ctypes.POINTER(ctypes.c_ubyte)),
2440
ctypes.c_uint(len(certificate)))
2441
# XXX all these need to be created in the gnutls "module"
2442
# New empty GnuTLS certificate
2443
pubkey = gnutls.pubkey_t()
2444
gnutls.pubkey_init(ctypes.byref(pubkey))
2445
# Import the raw public key into the certificate
2446
gnutls.pubkey_import(pubkey,
2447
ctypes.byref(datum),
2448
gnutls.X509_FMT_DER)
2449
# New buffer for the key ID
2450
buf = ctypes.create_string_buffer(32)
2451
buf_len = ctypes.c_size_t(len(buf))
2452
# Get the key ID from the raw public key into the buffer
2453
gnutls.pubkey_get_key_id(pubkey,
2454
gnutls.KEYID_USE_SHA256,
2455
ctypes.cast(ctypes.byref(buf),
2456
ctypes.POINTER(ctypes.c_ubyte)),
2457
ctypes.byref(buf_len))
2458
# Deinit the certificate
2459
gnutls.pubkey_deinit(pubkey)
2460
2461
# Convert the buffer to a Python bytestring
2462
key_id = ctypes.string_at(buf, buf_len.value)
2463
# Convert the bytestring to hexadecimal notation
2464
hex_key_id = binascii.hexlify(key_id).upper()
2465
return hex_key_id
2466
1657
2467
@staticmethod
1658
2468
def fingerprint(openpgp):
1659
2469
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1660
2470
# New GnuTLS "datum" with the OpenPGP public key
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))))
2471
datum = gnutls.datum_t(
2472
ctypes.cast(ctypes.c_char_p(openpgp),
2473
ctypes.POINTER(ctypes.c_ubyte)),
2474
ctypes.c_uint(len(openpgp)))
1666
2475
# New empty GnuTLS certificate
1667
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1668
(gnutls.library.functions
1669
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2476
crt = gnutls.openpgp_crt_t()
2477
gnutls.openpgp_crt_init(ctypes.byref(crt))
1670
2478
# Import the OpenPGP public key into the certificate
1671
(gnutls.library.functions
1672
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1673
gnutls.library.constants
1674
.GNUTLS_OPENPGP_FMT_RAW))
2479
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2480
gnutls.OPENPGP_FMT_RAW)
1675
2481
# Verify the self signature in the key
1676
2482
crtverify = ctypes.c_uint()
1677
(gnutls.library.functions
1678
.gnutls_openpgp_crt_verify_self(crt, 0,
1679
ctypes.byref(crtverify)))
2483
gnutls.openpgp_crt_verify_self(crt, 0,
2484
ctypes.byref(crtverify))
1680
2485
if crtverify.value != 0:
1681
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1682
raise (gnutls.errors.CertificateSecurityError
1683
("Verify failed"))
2486
gnutls.openpgp_crt_deinit(crt)
2487
raise gnutls.CertificateSecurityError(code
2488
=crtverify.value)
1684
2489
# New buffer for the fingerprint
1685
2490
buf = ctypes.create_string_buffer(20)
1686
2491
buf_len = ctypes.c_size_t()
1687
2492
# Get the fingerprint from the certificate into the buffer
1688
(gnutls.library.functions
1689
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1690
ctypes.byref(buf_len)))
2493
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2494
ctypes.byref(buf_len))
1691
2495
# Deinit the certificate
1692
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2496
gnutls.openpgp_crt_deinit(crt)
1693
2497
# Convert the buffer to a Python bytestring
1694
2498
fpr = ctypes.string_at(buf, buf_len.value)
1695
2499
# Convert the bytestring to hexadecimal notation
1697
2501
return hex_fpr
1698
2502
1699
2503
1700
class MultiprocessingMixIn(object):
2504
class MultiprocessingMixIn:
1701
2505
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2506
1702
2507
def sub_process_main(self, request, address):
1703
2508
try:
1704
2509
self.finish_request(request, address)
1705
2510
except Exception:
1706
2511
self.handle_error(request, address)
1707
2512
self.close_request(request)
1708
2513
1709
2514
def process_request(self, request, address):
1710
2515
"""Start a new process to process the request."""
1711
proc = multiprocessing.Process(target = self.sub_process_main,
1712
args = (request,
1713
address))
2516
proc = multiprocessing.Process(target=self.sub_process_main,
2517
args=(request, address))
1714
2518
proc.start()
1715
2519
return proc
1716
2520
1717
2521
1718
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2522
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1719
2523
""" adds a pipe to the MixIn """
2524
1720
2525
def process_request(self, request, client_address):
1721
2526
"""Overrides and wraps the original process_request().
1722
2527
1723
2528
This function creates a new pipe in self.pipe
1724
2529
"""
1725
2530
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1726
2531
1727
2532
proc = MultiprocessingMixIn.process_request(self, request,
1728
2533
client_address)
1729
2534
self.child_pipe.close()
1730
2535
self.add_pipe(parent_pipe, proc)
1731
2536
1732
2537
def add_pipe(self, parent_pipe, proc):
1733
2538
"""Dummy function; override as necessary"""
1734
raise NotImplementedError
2539
raise NotImplementedError()
1735
2540
1736
2541
1737
2542
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1738
socketserver.TCPServer, object):
2543
socketserver.TCPServer):
1739
2544
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1740
2545
1741
2546
Attributes:
1742
2547
enabled: Boolean; whether this server is activated yet
1743
2548
interface: None or a network interface name (string)
1744
2549
use_ipv6: Boolean; to use IPv6 or not
1745
2550
"""
2551
1746
2552
def __init__(self, server_address, RequestHandlerClass,
1747
interface=None, use_ipv6=True):
2553
interface=None,
2554
use_ipv6=True,
2555
socketfd=None):
2556
"""If socketfd is set, use that file descriptor instead of
2557
creating a new one with socket.socket().
2558
"""
1748
2559
self.interface = interface
1749
2560
if use_ipv6:
1750
2561
self.address_family = socket.AF_INET6
2562
if socketfd is not None:
2563
# Save the file descriptor
2564
self.socketfd = socketfd
2565
# Save the original socket.socket() function
2566
self.socket_socket = socket.socket
2567
2568
# To implement --socket, we monkey patch socket.socket.
2569
#
2570
# (When socketserver.TCPServer is a new-style class, we
2571
# could make self.socket into a property instead of monkey
2572
# patching socket.socket.)
2573
#
2574
# Create a one-time-only replacement for socket.socket()
2575
@functools.wraps(socket.socket)
2576
def socket_wrapper(*args, **kwargs):
2577
# Restore original function so subsequent calls are
2578
# not affected.
2579
socket.socket = self.socket_socket
2580
del self.socket_socket
2581
# This time only, return a new socket object from the
2582
# saved file descriptor.
2583
return socket.fromfd(self.socketfd, *args, **kwargs)
2584
# Replace socket.socket() function with wrapper
2585
socket.socket = socket_wrapper
2586
# The socketserver.TCPServer.__init__ will call
2587
# socket.socket(), which might be our replacement,
2588
# socket_wrapper(), if socketfd was set.
1751
2589
socketserver.TCPServer.__init__(self, server_address,
1752
2590
RequestHandlerClass)
2591
1753
2592
def server_bind(self):
1754
2593
"""This overrides the normal server_bind() function
1755
2594
to bind to an interface if one was specified, and also NOT to
1756
2595
bind to an address or port if they were not specified."""
2596
global SO_BINDTODEVICE
1757
2597
if self.interface is not None:
1758
2598
if SO_BINDTODEVICE is None:
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
2599
# Fall back to a hard-coded value which seems to be
2600
# common enough.
2601
logger.warning("SO_BINDTODEVICE not found, trying 25")
2602
SO_BINDTODEVICE = 25
2603
try:
2604
self.socket.setsockopt(
2605
socket.SOL_SOCKET, SO_BINDTODEVICE,
2606
(self.interface + "\0").encode("utf-8"))
2607
except socket.error as error:
2608
if error.errno == errno.EPERM:
2609
logger.error("No permission to bind to"
2610
" interface %s", self.interface)
2611
elif error.errno == errno.ENOPROTOOPT:
2612
logger.error("SO_BINDTODEVICE not available;"
2613
" cannot bind to interface %s",
2614
self.interface)
2615
elif error.errno == errno.ENODEV:
2616
logger.error("Interface %s does not exist,"
2617
" cannot bind", self.interface)
2618
else:
2619
raise
1779
2620
# Only bind(2) the socket if we really need to.
1780
2621
if self.server_address[0] or self.server_address[1]:
2622
if self.server_address[1]:
2623
self.allow_reuse_address = True
1781
2624
if not self.server_address[0]:
1782
2625
if self.address_family == socket.AF_INET6:
1783
any_address = "::" # in6addr_any
2626
any_address = "::" # in6addr_any
1784
2627
else:
1785
any_address = socket.INADDR_ANY
2628
any_address = "0.0.0.0" # INADDR_ANY
1786
2629
self.server_address = (any_address,
1787
2630
self.server_address[1])
1788
2631
elif not self.server_address[1]:
1789
self.server_address = (self.server_address[0],
1790
0)
2632
self.server_address = (self.server_address[0], 0)
1791
2633
# if self.interface:
1792
2634
# self.server_address = (self.server_address[0],
1793
2635
# 0, # port
1799
2641
1800
2642
class MandosServer(IPv6_TCPServer):
1801
2643
"""Mandos server.
1802
2644
1803
2645
Attributes:
1804
2646
clients: set of Client objects
1805
2647
gnutls_priority GnuTLS priority string
1806
2648
use_dbus: Boolean; to emit D-Bus signals or not
1807
1808
Assumes a gobject.MainLoop event loop.
2649
2650
Assumes a GLib.MainLoop event loop.
1809
2651
"""
2652
1810
2653
def __init__(self, server_address, RequestHandlerClass,
1811
interface=None, use_ipv6=True, clients=None,
1812
gnutls_priority=None, use_dbus=True):
2654
interface=None,
2655
use_ipv6=True,
2656
clients=None,
2657
gnutls_priority=None,
2658
use_dbus=True,
2659
socketfd=None):
1813
2660
self.enabled = False
1814
2661
self.clients = clients
1815
2662
if self.clients is None:
1818
2665
self.gnutls_priority = gnutls_priority
1819
2666
IPv6_TCPServer.__init__(self, server_address,
1820
2667
RequestHandlerClass,
1821
interface = interface,
1822
use_ipv6 = use_ipv6)
2668
interface=interface,
2669
use_ipv6=use_ipv6,
2670
socketfd=socketfd)
2671
1823
2672
def server_activate(self):
1824
2673
if self.enabled:
1825
2674
return socketserver.TCPServer.server_activate(self)
1826
2675
1827
2676
def enable(self):
1828
2677
self.enabled = True
1829
2678
1830
2679
def add_pipe(self, parent_pipe, proc):
1831
2680
# Call "handle_ipc" for both data and EOF events
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)
2681
GLib.io_add_watch(
2682
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2683
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2684
functools.partial(self.handle_ipc,
2685
parent_pipe=parent_pipe,
2686
proc=proc))
2687
2688
def handle_ipc(self, source, condition,
2689
parent_pipe=None,
2690
proc=None,
2691
client_object=None):
1855
2692
# error, or the other end of multiprocessing.Pipe has closed
1856
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2693
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1857
2694
# Wait for other process to exit
1858
2695
proc.join()
1859
2696
return False
1860
2697
1861
2698
# Read a request from the child
1862
2699
request = parent_pipe.recv()
1863
2700
command = request[0]
1864
2701
1865
2702
if command == 'init':
1866
fpr = request[1]
1867
address = request[2]
1868
1869
for c in self.clients.itervalues():
1870
if c.fingerprint == fpr:
2703
key_id = request[1].decode("ascii")
2704
fpr = request[2].decode("ascii")
2705
address = request[3]
2706
2707
for c in self.clients.values():
2708
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2709
continue
2710
if key_id and c.key_id == key_id:
2711
client = c
2712
break
2713
if fpr and c.fingerprint == fpr:
1871
2714
client = c
1872
2715
break
1873
2716
else:
1874
logger.info("Client not found for fingerprint: %s, ad"
1875
"dress: %s", fpr, address)
2717
logger.info("Client not found for key ID: %s, address"
2718
": %s", key_id or fpr, address)
1876
2719
if self.use_dbus:
1877
2720
# Emit D-Bus signal
1878
mandos_dbus_service.ClientNotFound(fpr,
2721
mandos_dbus_service.ClientNotFound(key_id or fpr,
1879
2722
address[0])
1880
2723
parent_pipe.send(False)
1881
2724
return False
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))
2725
2726
GLib.io_add_watch(
2727
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2728
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2729
functools.partial(self.handle_ipc,
2730
parent_pipe=parent_pipe,
2731
proc=proc,
2732
client_object=client))
1891
2733
parent_pipe.send(True)
1892
2734
# remove the old hook in favor of the new above hook on
1893
2735
# same fileno
1896
2738
funcname = request[1]
1897
2739
args = request[2]
1898
2740
kwargs = request[3]
1899
2741
1900
2742
parent_pipe.send(('data', getattr(client_object,
1901
2743
funcname)(*args,
1902
**kwargs)))
1903
2744
**kwargs)))
2745
1904
2746
if command == 'getattr':
1905
2747
attrname = request[1]
1906
if callable(client_object.__getattribute__(attrname)):
1907
parent_pipe.send(('function',))
2748
if isinstance(client_object.__getattribute__(attrname),
2749
collections.Callable):
2750
parent_pipe.send(('function', ))
1908
2751
else:
1909
parent_pipe.send(('data', client_object
1910
.__getattribute__(attrname)))
1911
2752
parent_pipe.send((
2753
'data', client_object.__getattribute__(attrname)))
2754
1912
2755
if command == 'setattr':
1913
2756
attrname = request[1]
1914
2757
value = request[2]
1915
2758
setattr(client_object, attrname, value)
1916
2759
1917
2760
return True
1918
2761
1919
2762
2763
def rfc3339_duration_to_delta(duration):
2764
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2765
2766
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2767
True
2768
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2769
True
2770
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2771
True
2772
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2773
True
2774
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2775
True
2776
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2777
True
2778
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2779
True
2780
"""
2781
2782
# Parsing an RFC 3339 duration with regular expressions is not
2783
# possible - there would have to be multiple places for the same
2784
# values, like seconds. The current code, while more esoteric, is
2785
# cleaner without depending on a parsing library. If Python had a
2786
# built-in library for parsing we would use it, but we'd like to
2787
# avoid excessive use of external libraries.
2788
2789
# New type for defining tokens, syntax, and semantics all-in-one
2790
Token = collections.namedtuple("Token", (
2791
"regexp", # To match token; if "value" is not None, must have
2792
# a "group" containing digits
2793
"value", # datetime.timedelta or None
2794
"followers")) # Tokens valid after this token
2795
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2796
# the "duration" ABNF definition in RFC 3339, Appendix A.
2797
token_end = Token(re.compile(r"$"), None, frozenset())
2798
token_second = Token(re.compile(r"(\d+)S"),
2799
datetime.timedelta(seconds=1),
2800
frozenset((token_end, )))
2801
token_minute = Token(re.compile(r"(\d+)M"),
2802
datetime.timedelta(minutes=1),
2803
frozenset((token_second, token_end)))
2804
token_hour = Token(re.compile(r"(\d+)H"),
2805
datetime.timedelta(hours=1),
2806
frozenset((token_minute, token_end)))
2807
token_time = Token(re.compile(r"T"),
2808
None,
2809
frozenset((token_hour, token_minute,
2810
token_second)))
2811
token_day = Token(re.compile(r"(\d+)D"),
2812
datetime.timedelta(days=1),
2813
frozenset((token_time, token_end)))
2814
token_month = Token(re.compile(r"(\d+)M"),
2815
datetime.timedelta(weeks=4),
2816
frozenset((token_day, token_end)))
2817
token_year = Token(re.compile(r"(\d+)Y"),
2818
datetime.timedelta(weeks=52),
2819
frozenset((token_month, token_end)))
2820
token_week = Token(re.compile(r"(\d+)W"),
2821
datetime.timedelta(weeks=1),
2822
frozenset((token_end, )))
2823
token_duration = Token(re.compile(r"P"), None,
2824
frozenset((token_year, token_month,
2825
token_day, token_time,
2826
token_week)))
2827
# Define starting values:
2828
# Value so far
2829
value = datetime.timedelta()
2830
found_token = None
2831
# Following valid tokens
2832
followers = frozenset((token_duration, ))
2833
# String left to parse
2834
s = duration
2835
# Loop until end token is found
2836
while found_token is not token_end:
2837
# Search for any currently valid tokens
2838
for token in followers:
2839
match = token.regexp.match(s)
2840
if match is not None:
2841
# Token found
2842
if token.value is not None:
2843
# Value found, parse digits
2844
factor = int(match.group(1), 10)
2845
# Add to value so far
2846
value += factor * token.value
2847
# Strip token from string
2848
s = token.regexp.sub("", s, 1)
2849
# Go to found token
2850
found_token = token
2851
# Set valid next tokens
2852
followers = found_token.followers
2853
break
2854
else:
2855
# No currently valid tokens were found
2856
raise ValueError("Invalid RFC 3339 duration: {!r}"
2857
.format(duration))
2858
# End token found
2859
return value
2860
2861
1920
2862
def string_to_delta(interval):
1921
2863
"""Parse a string and return a datetime.timedelta
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)
2864
2865
>>> string_to_delta('7d') == datetime.timedelta(7)
2866
True
2867
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2868
True
2869
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2870
True
2871
>>> string_to_delta('24h') == datetime.timedelta(1)
2872
True
2873
>>> string_to_delta('1w') == datetime.timedelta(7)
2874
True
2875
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2876
True
1935
2877
"""
2878
2879
try:
2880
return rfc3339_duration_to_delta(interval)
2881
except ValueError:
2882
pass
2883
1936
2884
timevalue = datetime.timedelta(0)
1937
2885
for s in interval.split():
1938
2886
try:
1939
suffix = unicode(s[-1])
2887
suffix = s[-1]
1940
2888
value = int(s[:-1])
1941
2889
if suffix == "d":
1942
2890
delta = datetime.timedelta(value)
1949
2897
elif suffix == "w":
1950
2898
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1951
2899
else:
1952
raise ValueError("Unknown suffix %r" % suffix)
1953
except (ValueError, IndexError) as e:
2900
raise ValueError("Unknown suffix {!r}".format(suffix))
2901
except IndexError as e:
1954
2902
raise ValueError(*(e.args))
1955
2903
timevalue += delta
1956
2904
return timevalue
1957
2905
1958
2906
1959
def daemon(nochdir = False, noclose = False):
2907
def daemon(nochdir=False, noclose=False):
1960
2908
"""See daemon(3). Standard BSD Unix function.
1961
2909
1962
2910
This should really exist as os.daemon, but it doesn't (yet)."""
1963
2911
if os.fork():
1964
2912
sys.exit()
1969
2917
sys.exit()
1970
2918
if not noclose:
1971
2919
# Close all standard open file descriptors
1972
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2920
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1973
2921
if not stat.S_ISCHR(os.fstat(null).st_mode):
1974
2922
raise OSError(errno.ENODEV,
1975
"%s not a character device"
1976
% os.path.devnull)
2923
"{} not a character device"
2924
.format(os.devnull))
1977
2925
os.dup2(null, sys.stdin.fileno())
1978
2926
os.dup2(null, sys.stdout.fileno())
1979
2927
os.dup2(null, sys.stderr.fileno())
1982
2930
1983
2931
1984
2932
def main():
1985
2933
1986
2934
##################################################################
1987
2935
# Parsing of options, both command line and config file
1988
2936
1989
2937
parser = argparse.ArgumentParser()
1990
2938
parser.add_argument("-v", "--version", action="version",
1991
version = "%%(prog)s %s" % version,
2939
version="%(prog)s {}".format(version),
1992
2940
help="show version number and exit")
1993
2941
parser.add_argument("-i", "--interface", metavar="IF",
1994
2942
help="Bind to interface IF")
2000
2948
help="Run self-test")
2001
2949
parser.add_argument("--debug", action="store_true",
2002
2950
help="Debug mode; run in foreground and log"
2003
" to terminal")
2951
" to terminal", default=None)
2004
2952
parser.add_argument("--debuglevel", metavar="LEVEL",
2005
2953
help="Debug level for stdout output")
2006
2954
parser.add_argument("--priority", help="GnuTLS"
2013
2961
" files")
2014
2962
parser.add_argument("--no-dbus", action="store_false",
2015
2963
dest="use_dbus", help="Do not provide D-Bus"
2016
" system bus interface")
2964
" system bus interface", default=None)
2017
2965
parser.add_argument("--no-ipv6", action="store_false",
2018
dest="use_ipv6", help="Do not use IPv6")
2966
dest="use_ipv6", help="Do not use IPv6",
2967
default=None)
2019
2968
parser.add_argument("--no-restore", action="store_false",
2020
2969
dest="restore", help="Do not restore stored"
2021
" state")
2970
" state", default=None)
2971
parser.add_argument("--socket", type=int,
2972
help="Specify a file descriptor to a network"
2973
" socket to use instead of creating one")
2022
2974
parser.add_argument("--statedir", metavar="DIR",
2023
2975
help="Directory to save/restore state in")
2024
2976
parser.add_argument("--foreground", action="store_true",
2977
help="Run in foreground", default=None)
2978
parser.add_argument("--no-zeroconf", action="store_false",
2979
dest="zeroconf", help="Do not use Zeroconf",
2980
default=None)
2981
2025
2982
options = parser.parse_args()
2026
2027
if options.check:
2028
import doctest
2029
doctest.testmod()
2030
sys.exit()
2031
2983
2032
2984
# Default values for config file for server-global settings
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
2985
if gnutls.has_rawpk:
2986
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2987
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2988
else:
2989
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2990
":+SIGN-DSA-SHA256")
2991
server_defaults = {"interface": "",
2992
"address": "",
2993
"port": "",
2994
"debug": "False",
2995
"priority": priority,
2996
"servicename": "Mandos",
2997
"use_dbus": "True",
2998
"use_ipv6": "True",
2999
"debuglevel": "",
3000
"restore": "True",
3001
"socket": "",
3002
"statedir": "/var/lib/mandos",
3003
"foreground": "False",
3004
"zeroconf": "True",
3005
}
3006
del priority
3007
2047
3008
# Parse config file for server-global settings
2048
server_config = configparser.SafeConfigParser(server_defaults)
3009
server_config = configparser.ConfigParser(server_defaults)
2049
3010
del server_defaults
2050
server_config.read(os.path.join(options.configdir,
2051
"mandos.conf"))
2052
# Convert the SafeConfigParser object to a dict
3011
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3012
# Convert the ConfigParser object to a dict
2053
3013
server_settings = server_config.defaults()
2054
3014
# Use the appropriate methods on the non-string config options
2055
for option in ("debug", "use_dbus", "use_ipv6"):
3015
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3016
"foreground", "zeroconf"):
2056
3017
server_settings[option] = server_config.getboolean("DEFAULT",
2057
3018
option)
2058
3019
if server_settings["port"]:
2059
3020
server_settings["port"] = server_config.getint("DEFAULT",
2060
3021
"port")
3022
if server_settings["socket"]:
3023
server_settings["socket"] = server_config.getint("DEFAULT",
3024
"socket")
3025
# Later, stdin will, and stdout and stderr might, be dup'ed
3026
# over with an opened os.devnull. But we don't want this to
3027
# happen with a supplied network socket.
3028
if 0 <= server_settings["socket"] <= 2:
3029
server_settings["socket"] = os.dup(server_settings
3030
["socket"])
2061
3031
del server_config
2062
3032
2063
3033
# Override the settings from the config file with command line
2064
3034
# options, if set.
2065
3035
for option in ("interface", "address", "port", "debug",
2066
"priority", "servicename", "configdir",
2067
"use_dbus", "use_ipv6", "debuglevel", "restore",
2068
"statedir"):
3036
"priority", "servicename", "configdir", "use_dbus",
3037
"use_ipv6", "debuglevel", "restore", "statedir",
3038
"socket", "foreground", "zeroconf"):
2069
3039
value = getattr(options, option)
2070
3040
if value is not None:
2071
3041
server_settings[option] = value
2072
3042
del options
2073
3043
# Force all strings to be unicode
2074
3044
for option in server_settings.keys():
2075
if type(server_settings[option]) is str:
2076
server_settings[option] = unicode(server_settings[option])
3045
if isinstance(server_settings[option], bytes):
3046
server_settings[option] = (server_settings[option]
3047
.decode("utf-8"))
3048
# Force all boolean options to be boolean
3049
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3050
"foreground", "zeroconf"):
3051
server_settings[option] = bool(server_settings[option])
3052
# Debug implies foreground
3053
if server_settings["debug"]:
3054
server_settings["foreground"] = True
2077
3055
# Now we have our good server settings in "server_settings"
2078
3056
2079
3057
##################################################################
2080
3058
3059
if (not server_settings["zeroconf"]
3060
and not (server_settings["port"]
3061
or server_settings["socket"] != "")):
3062
parser.error("Needs port or socket to work without Zeroconf")
3063
2081
3064
# For convenience
2082
3065
debug = server_settings["debug"]
2083
3066
debuglevel = server_settings["debuglevel"]
2085
3068
use_ipv6 = server_settings["use_ipv6"]
2086
3069
stored_state_path = os.path.join(server_settings["statedir"],
2087
3070
stored_state_file)
2088
3071
foreground = server_settings["foreground"]
3072
zeroconf = server_settings["zeroconf"]
3073
2089
3074
if debug:
2090
3075
initlogger(debug, logging.DEBUG)
2091
3076
else:
2094
3079
else:
2095
3080
level = getattr(logging, debuglevel.upper())
2096
3081
initlogger(debug, level)
2097
3082
2098
3083
if server_settings["servicename"] != "Mandos":
2099
syslogger.setFormatter(logging.Formatter
2100
('Mandos (%s) [%%(process)d]:'
2101
' %%(levelname)s: %%(message)s'
2102
% server_settings["servicename"]))
2103
3084
syslogger.setFormatter(
3085
logging.Formatter('Mandos ({}) [%(process)d]:'
3086
' %(levelname)s: %(message)s'.format(
3087
server_settings["servicename"])))
3088
2104
3089
# Parse config file with clients
2105
client_config = configparser.SafeConfigParser(Client
2106
.client_defaults)
3090
client_config = configparser.ConfigParser(Client.client_defaults)
2107
3091
client_config.read(os.path.join(server_settings["configdir"],
2108
3092
"clients.conf"))
2109
3093
2110
3094
global mandos_dbus_service
2111
3095
mandos_dbus_service = None
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
3096
3097
socketfd = None
3098
if server_settings["socket"] != "":
3099
socketfd = server_settings["socket"]
3100
tcp_server = MandosServer(
3101
(server_settings["address"], server_settings["port"]),
3102
ClientHandler,
3103
interface=(server_settings["interface"] or None),
3104
use_ipv6=use_ipv6,
3105
gnutls_priority=server_settings["priority"],
3106
use_dbus=use_dbus,
3107
socketfd=socketfd)
3108
if not foreground:
3109
pidfilename = "/run/mandos.pid"
3110
if not os.path.isdir("/run/."):
3111
pidfilename = "/var/run/mandos.pid"
3112
pidfile = None
3113
try:
3114
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3115
except IOError as e:
3116
logger.error("Could not open file %r", pidfilename,
3117
exc_info=e)
3118
3119
for name, group in (("_mandos", "_mandos"),
3120
("mandos", "mandos"),
3121
("nobody", "nogroup")):
3122
try:
3123
uid = pwd.getpwnam(name).pw_uid
3124
gid = pwd.getpwnam(group).pw_gid
3125
break
2136
3126
except KeyError:
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
3127
continue
3128
else:
3129
uid = 65534
3130
gid = 65534
2143
3131
try:
2144
3132
os.setgid(gid)
2145
3133
os.setuid(uid)
3134
if debug:
3135
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3136
gid))
2146
3137
except OSError as error:
2147
if error[0] != errno.EPERM:
2148
raise error
2149
3138
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3139
.format(uid, gid, os.strerror(error.errno)))
3140
if error.errno != errno.EPERM:
3141
raise
3142
2150
3143
if debug:
2151
3144
# Enable all possible GnuTLS debugging
2152
3145
2153
3146
# "Use a log level over 10 to enable all debugging options."
2154
3147
# - GnuTLS manual
2155
gnutls.library.functions.gnutls_global_set_log_level(11)
2156
2157
@gnutls.library.types.gnutls_log_func
3148
gnutls.global_set_log_level(11)
3149
3150
@gnutls.log_func
2158
3151
def debug_gnutls(level, string):
2159
3152
logger.debug("GnuTLS: %s", string[:-1])
2160
2161
(gnutls.library.functions
2162
.gnutls_global_set_log_function(debug_gnutls))
2163
3153
3154
gnutls.global_set_log_function(debug_gnutls)
3155
2164
3156
# Redirect stdin so all checkers get /dev/null
2165
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3157
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2166
3158
os.dup2(null, sys.stdin.fileno())
2167
3159
if null > 2:
2168
3160
os.close(null)
2169
3161
2170
3162
# Need to fork before connecting to D-Bus
2171
if not debug:
3163
if not foreground:
2172
3164
# Close all input and output, do double fork, etc.
2173
3165
daemon()
2174
2175
gobject.threads_init()
2176
3166
3167
if gi.version_info < (3, 10, 2):
3168
# multiprocessing will use threads, so before we use GLib we
3169
# need to inform GLib that threads will be used.
3170
GLib.threads_init()
3171
2177
3172
global main_loop
2178
3173
# From the Avahi example code
2179
DBusGMainLoop(set_as_default=True )
2180
main_loop = gobject.MainLoop()
3174
DBusGMainLoop(set_as_default=True)
3175
main_loop = GLib.MainLoop()
2181
3176
bus = dbus.SystemBus()
2182
3177
# End of Avahi example code
2183
3178
if use_dbus:
2184
3179
try:
2185
3180
bus_name = dbus.service.BusName("se.recompile.Mandos",
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")
3181
bus,
3182
do_not_queue=True)
3183
old_bus_name = dbus.service.BusName(
3184
"se.bsnet.fukt.Mandos", bus,
3185
do_not_queue=True)
3186
except dbus.exceptions.DBusException as e:
3187
logger.error("Disabling D-Bus:", exc_info=e)
2192
3188
use_dbus = False
2193
3189
server_settings["use_dbus"] = False
2194
3190
tcp_server.use_dbus = False
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
3191
if zeroconf:
3192
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3193
service = AvahiServiceToSyslog(
3194
name=server_settings["servicename"],
3195
servicetype="_mandos._tcp",
3196
protocol=protocol,
3197
bus=bus)
3198
if server_settings["interface"]:
3199
service.interface = if_nametoindex(
3200
server_settings["interface"].encode("utf-8"))
3201
2204
3202
global multiprocessing_manager
2205
3203
multiprocessing_manager = multiprocessing.Manager()
2206
3204
2207
3205
client_class = Client
2208
3206
if use_dbus:
2209
client_class = functools.partial(ClientDBusTransitional,
2210
bus = bus)
2211
3207
client_class = functools.partial(ClientDBus, bus=bus)
3208
2212
3209
client_settings = Client.config_parser(client_config)
2213
3210
old_client_settings = {}
2214
3211
clients_data = {}
2215
3212
3213
# This is used to redirect stdout and stderr for checker processes
3214
global wnull
3215
wnull = open(os.devnull, "w") # A writable /dev/null
3216
# Only used if server is running in foreground but not in debug
3217
# mode
3218
if debug or not foreground:
3219
wnull.close()
3220
2216
3221
# Get client data and settings from last running state.
2217
3222
if server_settings["restore"]:
2218
3223
try:
2219
3224
with open(stored_state_path, "rb") as stored_state:
2220
clients_data, old_client_settings = (pickle.load
2221
(stored_state))
3225
if sys.version_info.major == 2:
3226
clients_data, old_client_settings = pickle.load(
3227
stored_state)
3228
else:
3229
bytes_clients_data, bytes_old_client_settings = (
3230
pickle.load(stored_state, encoding="bytes"))
3231
# Fix bytes to strings
3232
# clients_data
3233
# .keys()
3234
clients_data = {(key.decode("utf-8")
3235
if isinstance(key, bytes)
3236
else key): value
3237
for key, value in
3238
bytes_clients_data.items()}
3239
del bytes_clients_data
3240
for key in clients_data:
3241
value = {(k.decode("utf-8")
3242
if isinstance(k, bytes) else k): v
3243
for k, v in
3244
clients_data[key].items()}
3245
clients_data[key] = value
3246
# .client_structure
3247
value["client_structure"] = [
3248
(s.decode("utf-8")
3249
if isinstance(s, bytes)
3250
else s) for s in
3251
value["client_structure"]]
3252
# .name, .host, and .checker_command
3253
for k in ("name", "host", "checker_command"):
3254
if isinstance(value[k], bytes):
3255
value[k] = value[k].decode("utf-8")
3256
if "key_id" not in value:
3257
value["key_id"] = ""
3258
elif "fingerprint" not in value:
3259
value["fingerprint"] = ""
3260
# old_client_settings
3261
# .keys()
3262
old_client_settings = {
3263
(key.decode("utf-8")
3264
if isinstance(key, bytes)
3265
else key): value
3266
for key, value in
3267
bytes_old_client_settings.items()}
3268
del bytes_old_client_settings
3269
# .host and .checker_command
3270
for value in old_client_settings.values():
3271
for attribute in ("host", "checker_command"):
3272
if isinstance(value[attribute], bytes):
3273
value[attribute] = (value[attribute]
3274
.decode("utf-8"))
2222
3275
os.remove(stored_state_path)
2223
3276
except IOError as e:
2224
logger.warning("Could not load persistent state: {0}"
2225
.format(e))
2226
if e.errno != errno.ENOENT:
3277
if e.errno == errno.ENOENT:
3278
logger.warning("Could not load persistent state:"
3279
" {}".format(os.strerror(e.errno)))
3280
else:
3281
logger.critical("Could not load persistent state:",
3282
exc_info=e)
2227
3283
raise
2228
3284
except EOFError as e:
2229
3285
logger.warning("Could not load persistent state: "
2230
"EOFError: {0}".format(e))
2231
3286
"EOFError:",
3287
exc_info=e)
3288
2232
3289
with PGPEngine() as pgp:
2233
for client_name, client in clients_data.iteritems():
3290
for client_name, client in clients_data.items():
3291
# Skip removed clients
3292
if client_name not in client_settings:
3293
continue
3294
2234
3295
# Decide which value to use after restoring saved state.
2235
3296
# We have three different values: Old config file,
2236
3297
# new config file, and saved state.
2241
3302
# For each value in new config, check if it
2242
3303
# differs from the old config value (Except for
2243
3304
# the "secret" attribute)
2244
if (name != "secret" and
2245
value != old_client_settings[client_name]
2246
[name]):
3305
if (name != "secret"
3306
and (value !=
3307
old_client_settings[client_name][name])):
2247
3308
client[name] = value
2248
3309
except KeyError:
2249
3310
pass
2250
3311
2251
3312
# Clients who has passed its expire date can still be
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.
3313
# enabled if its last checker was successful. A Client
3314
# whose checker succeeded before we stored its state is
3315
# assumed to have successfully run all checkers during
3316
# downtime.
2255
3317
if client["enabled"]:
2256
3318
if datetime.datetime.utcnow() >= client["expires"]:
2257
3319
if not client["last_checked_ok"]:
2258
3320
logger.warning(
2259
"disabling client {0} - Client never "
2260
"performed a successfull checker"
2261
.format(client["name"]))
3321
"disabling client {} - Client never "
3322
"performed a successful checker".format(
3323
client_name))
2262
3324
client["enabled"] = False
2263
3325
elif client["last_checker_status"] != 0:
2264
3326
logger.warning(
2265
"disabling client {0} - Client "
2266
"last checker failed with error code {1}"
2267
.format(client["name"],
2268
client["last_checker_status"]))
3327
"disabling client {} - Client last"
3328
" checker failed with error code"
3329
" {}".format(
3330
client_name,
3331
client["last_checker_status"]))
2269
3332
client["enabled"] = False
2270
3333
else:
2271
client["expires"] = (datetime.datetime
2272
.utcnow()
2273
+ client["timeout"])
3334
client["expires"] = (
3335
datetime.datetime.utcnow()
3336
+ client["timeout"])
2274
3337
logger.debug("Last checker succeeded,"
2275
" keeping {0} enabled"
2276
.format(client["name"]))
3338
" keeping {} enabled".format(
3339
client_name))
2277
3340
try:
2278
client["secret"] = (
2279
pgp.decrypt(client["encrypted_secret"],
2280
client_settings[client_name]
2281
["secret"]))
3341
client["secret"] = pgp.decrypt(
3342
client["encrypted_secret"],
3343
client_settings[client_name]["secret"])
2282
3344
except PGPError:
2283
3345
# If decryption fails, we use secret from new settings
2284
logger.debug("Failed to decrypt {0} old secret"
2285
.format(client_name))
2286
client["secret"] = (
2287
client_settings[client_name]["secret"])
3346
logger.debug("Failed to decrypt {} old secret".format(
3347
client_name))
3348
client["secret"] = (client_settings[client_name]
3349
["secret"])
2288
3350
2289
2290
3351
# Add/remove clients based on new changes made to config
2291
3352
for client_name in (set(old_client_settings)
2292
3353
- set(client_settings)):
2295
3356
- set(old_client_settings)):
2296
3357
clients_data[client_name] = client_settings[client_name]
2297
3358
2298
# Create clients all clients
2299
for client_name, client in clients_data.iteritems():
3359
# Create all client objects
3360
for client_name, client in clients_data.items():
2300
3361
tcp_server.clients[client_name] = client_class(
2301
name = client_name, settings = client)
2302
3362
name=client_name,
3363
settings=client,
3364
server_settings=server_settings)
3365
2303
3366
if not tcp_server.clients:
2304
3367
logger.warning("No clients defined")
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
3368
3369
if not foreground:
3370
if pidfile is not None:
3371
pid = os.getpid()
3372
try:
3373
with pidfile:
3374
print(pid, file=pidfile)
3375
except IOError:
3376
logger.error("Could not write to file %r with PID %d",
3377
pidfilename, pid)
3378
del pidfile
2318
3379
del pidfilename
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
3380
3381
for termsig in (signal.SIGHUP, signal.SIGTERM):
3382
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3383
lambda: main_loop.quit() and False)
3384
2324
3385
if use_dbus:
2325
class MandosDBusService(dbus.service.Object):
3386
3387
@alternate_dbus_interfaces(
3388
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3389
class MandosDBusService(DBusObjectWithObjectManager):
2326
3390
"""A D-Bus proxy object"""
3391
2327
3392
def __init__(self):
2328
3393
dbus.service.Object.__init__(self, bus, "/")
3394
2329
3395
_interface = "se.recompile.Mandos"
2330
3396
2331
3397
@dbus.service.signal(_interface, signature="o")
2332
3398
def ClientAdded(self, objpath):
2333
3399
"D-Bus signal"
2334
3400
pass
2335
3401
2336
3402
@dbus.service.signal(_interface, signature="ss")
2337
def ClientNotFound(self, fingerprint, address):
3403
def ClientNotFound(self, key_id, address):
2338
3404
"D-Bus signal"
2339
3405
pass
2340
3406
3407
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3408
"true"})
2341
3409
@dbus.service.signal(_interface, signature="os")
2342
3410
def ClientRemoved(self, objpath, name):
2343
3411
"D-Bus signal"
2344
3412
pass
2345
3413
3414
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3415
"true"})
2346
3416
@dbus.service.method(_interface, out_signature="ao")
2347
3417
def GetAllClients(self):
2348
3418
"D-Bus method"
2349
return dbus.Array(c.dbus_object_path
2350
for c in
2351
tcp_server.clients.itervalues())
2352
3419
return dbus.Array(c.dbus_object_path for c in
3420
tcp_server.clients.values())
3421
3422
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3423
"true"})
2353
3424
@dbus.service.method(_interface,
2354
3425
out_signature="a{oa{sv}}")
2355
3426
def GetAllClientsWithProperties(self):
2356
3427
"D-Bus method"
2357
3428
return dbus.Dictionary(
2358
((c.dbus_object_path, c.GetAll(""))
2359
for c in tcp_server.clients.itervalues()),
3429
{c.dbus_object_path: c.GetAll(
3430
"se.recompile.Mandos.Client")
3431
for c in tcp_server.clients.values()},
2360
3432
signature="oa{sv}")
2361
3433
2362
3434
@dbus.service.method(_interface, in_signature="o")
2363
3435
def RemoveClient(self, object_path):
2364
3436
"D-Bus method"
2365
for c in tcp_server.clients.itervalues():
3437
for c in tcp_server.clients.values():
2366
3438
if c.dbus_object_path == object_path:
2367
3439
del tcp_server.clients[c.name]
2368
3440
c.remove_from_connection()
2369
# Don't signal anything except ClientRemoved
3441
# Don't signal the disabling
2370
3442
c.disable(quiet=True)
2371
# Emit D-Bus signal
2372
self.ClientRemoved(object_path, c.name)
3443
# Emit D-Bus signal for removal
3444
self.client_removed_signal(c)
2373
3445
return
2374
3446
raise KeyError(object_path)
2375
3447
2376
3448
del _interface
2377
2378
class MandosDBusServiceTransitional(MandosDBusService):
2379
__metaclass__ = AlternateDBusNamesMetaclass
2380
mandos_dbus_service = MandosDBusServiceTransitional()
2381
3449
3450
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3451
out_signature="a{oa{sa{sv}}}")
3452
def GetManagedObjects(self):
3453
"""D-Bus method"""
3454
return dbus.Dictionary(
3455
{client.dbus_object_path:
3456
dbus.Dictionary(
3457
{interface: client.GetAll(interface)
3458
for interface in
3459
client._get_all_interface_names()})
3460
for client in tcp_server.clients.values()})
3461
3462
def client_added_signal(self, client):
3463
"""Send the new standard signal and the old signal"""
3464
if use_dbus:
3465
# New standard signal
3466
self.InterfacesAdded(
3467
client.dbus_object_path,
3468
dbus.Dictionary(
3469
{interface: client.GetAll(interface)
3470
for interface in
3471
client._get_all_interface_names()}))
3472
# Old signal
3473
self.ClientAdded(client.dbus_object_path)
3474
3475
def client_removed_signal(self, client):
3476
"""Send the new standard signal and the old signal"""
3477
if use_dbus:
3478
# New standard signal
3479
self.InterfacesRemoved(
3480
client.dbus_object_path,
3481
client._get_all_interface_names())
3482
# Old signal
3483
self.ClientRemoved(client.dbus_object_path,
3484
client.name)
3485
3486
mandos_dbus_service = MandosDBusService()
3487
3488
# Save modules to variables to exempt the modules from being
3489
# unloaded before the function registered with atexit() is run.
3490
mp = multiprocessing
3491
wn = wnull
3492
2382
3493
def cleanup():
2383
3494
"Cleanup function; run on exit"
2384
service.cleanup()
2385
2386
multiprocessing.active_children()
3495
if zeroconf:
3496
service.cleanup()
3497
3498
mp.active_children()
3499
wn.close()
2387
3500
if not (tcp_server.clients or client_settings):
2388
3501
return
2389
3502
2390
3503
# Store client before exiting. Secrets are encrypted with key
2391
3504
# based on what config file has. If config file is
2392
3505
# removed/edited, old secret will thus be unrecovable.
2393
3506
clients = {}
2394
3507
with PGPEngine() as pgp:
2395
for client in tcp_server.clients.itervalues():
3508
for client in tcp_server.clients.values():
2396
3509
key = client_settings[client.name]["secret"]
2397
3510
client.encrypted_secret = pgp.encrypt(client.secret,
2398
3511
key)
2399
3512
client_dict = {}
2400
3513
2401
3514
# A list of attributes that can not be pickled
2402
3515
# + secret.
2403
exclude = set(("bus", "changedstate", "secret",
2404
"checker"))
2405
for name, typ in (inspect.getmembers
2406
(dbus.service.Object)):
3516
exclude = {"bus", "changedstate", "secret",
3517
"checker", "server_settings"}
3518
for name, typ in inspect.getmembers(dbus.service
3519
.Object):
2407
3520
exclude.add(name)
2408
3521
2409
3522
client_dict["encrypted_secret"] = (client
2410
3523
.encrypted_secret)
2411
3524
for attr in client.client_structure:
2412
3525
if attr not in exclude:
2413
3526
client_dict[attr] = getattr(client, attr)
2414
3527
2415
3528
clients[client.name] = client_dict
2416
3529
del client_settings[client.name]["secret"]
2417
3530
2418
3531
try:
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)
3532
with tempfile.NamedTemporaryFile(
3533
mode='wb',
3534
suffix=".pickle",
3535
prefix='clients-',
3536
dir=os.path.dirname(stored_state_path),
3537
delete=False) as stored_state:
3538
pickle.dump((clients, client_settings), stored_state,
3539
protocol=2)
3540
tempname = stored_state.name
2425
3541
os.rename(tempname, stored_state_path)
2426
3542
except (IOError, OSError) as e:
2427
logger.warning("Could not save persistent state: {0}"
2428
.format(e))
2429
3543
if not debug:
2430
3544
try:
2431
3545
os.remove(tempname)
2432
3546
except NameError:
2433
3547
pass
2434
if e.errno not in set((errno.ENOENT, errno.EACCES,
2435
errno.EEXIST)):
2436
raise e
2437
3548
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3549
logger.warning("Could not save persistent state: {}"
3550
.format(os.strerror(e.errno)))
3551
else:
3552
logger.warning("Could not save persistent state:",
3553
exc_info=e)
3554
raise
3555
2438
3556
# Delete all clients, and settings from config
2439
3557
while tcp_server.clients:
2440
3558
name, client = tcp_server.clients.popitem()
2441
3559
if use_dbus:
2442
3560
client.remove_from_connection()
2443
# Don't signal anything except ClientRemoved
3561
# Don't signal the disabling
2444
3562
client.disable(quiet=True)
3563
# Emit D-Bus signal for removal
2445
3564
if use_dbus:
2446
# Emit D-Bus signal
2447
mandos_dbus_service.ClientRemoved(client
2448
.dbus_object_path,
2449
client.name)
3565
mandos_dbus_service.client_removed_signal(client)
2450
3566
client_settings.clear()
2451
3567
2452
3568
atexit.register(cleanup)
2453
2454
for client in tcp_server.clients.itervalues():
3569
3570
for client in tcp_server.clients.values():
2455
3571
if use_dbus:
2456
# Emit D-Bus signal
2457
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3572
# Emit D-Bus signal for adding
3573
mandos_dbus_service.client_added_signal(client)
2458
3574
# Need to initiate checking of clients
2459
3575
if client.enabled:
2460
3576
client.init_checker()
2461
3577
2462
3578
tcp_server.enable()
2463
3579
tcp_server.server_activate()
2464
3580
2465
3581
# Find out what port we got
2466
service.port = tcp_server.socket.getsockname()[1]
3582
if zeroconf:
3583
service.port = tcp_server.socket.getsockname()[1]
2467
3584
if use_ipv6:
2468
3585
logger.info("Now listening on address %r, port %d,"
2469
" flowinfo %d, scope_id %d"
2470
% tcp_server.socket.getsockname())
3586
" flowinfo %d, scope_id %d",
3587
*tcp_server.socket.getsockname())
2471
3588
else: # IPv4
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
3589
logger.info("Now listening on address %r, port %d",
3590
*tcp_server.socket.getsockname())
3591
3592
# service.interface = tcp_server.socket.getsockname()[3]
3593
2477
3594
try:
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
3595
if zeroconf:
3596
# From the Avahi example code
3597
try:
3598
service.activate()
3599
except dbus.exceptions.DBusException as error:
3600
logger.critical("D-Bus Exception", exc_info=error)
3601
cleanup()
3602
sys.exit(1)
3603
# End of Avahi example code
3604
3605
GLib.io_add_watch(
3606
GLib.IOChannel.unix_new(tcp_server.fileno()),
3607
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3608
lambda *args, **kwargs: (tcp_server.handle_request
3609
(*args[2:], **kwargs) or True))
3610
2492
3611
logger.debug("Starting main loop")
2493
3612
main_loop.run()
2494
3613
except AvahiError as error:
2495
logger.critical("AvahiError: %s", error)
3614
logger.critical("Avahi Error", exc_info=error)
2496
3615
cleanup()
2497
3616
sys.exit(1)
2498
3617
except KeyboardInterrupt:
2503
3622
# Must run before the D-Bus bus name gets deregistered
2504
3623
cleanup()
2505
3624
3625
3626
def should_only_run_tests():
3627
parser = argparse.ArgumentParser(add_help=False)
3628
parser.add_argument("--check", action='store_true')
3629
args, unknown_args = parser.parse_known_args()
3630
run_tests = args.check
3631
if run_tests:
3632
# Remove --check argument from sys.argv
3633
sys.argv[1:] = unknown_args
3634
return run_tests
3635
3636
# Add all tests from doctest strings
3637
def load_tests(loader, tests, none):
3638
import doctest
3639
tests.addTests(doctest.DocTestSuite())
3640
return tests
3641
2506
3642
if __name__ == '__main__':
2507
main()
3643
try:
3644
if should_only_run_tests():
3645
# Call using ./mandos --check [--verbose]
3646
unittest.main()
3647
else:
3648
main()
3649
finally:
3650
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0