To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/trunk
« back to all changes in this revision
Viewing changes to mandos
- browse files at revision 1176
- compare with another revision
- download diff
- download tarball
- view history from revision 1176
- Committer: Teddy Hogeborn
- Date: 2019-09-03 18:43:11 UTC
- Revision ID: teddy@recompile.se-20190903184311-zr795sh32mmq2drk
mandos: Only join() still running checker processes
* mandos (Client.checker_callback): Only do .join() on checker if it
is not None.
* mandos (Client.checker_callback): Only do .join() on checker if it
is not None.
- 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 -b
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
95
# Show warnings by default
96
if not sys.warnoptions:
97
import warnings
98
warnings.simplefilter("default")
99
100
# Try to find the value of SO_BINDTODEVICE:
80
101
try:
102
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
103
# newer, and it is also the most natural place for it:
81
104
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
82
105
except AttributeError:
83
106
try:
107
# This is where SO_BINDTODEVICE was up to and including Python
108
# 2.6, and also 3.2:
84
109
from IN import SO_BINDTODEVICE
85
110
except ImportError:
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
111
# In Python 2.7 it seems to have been removed entirely.
112
# Try running the C preprocessor:
113
try:
114
cc = subprocess.Popen(["cc", "--language=c", "-E",
115
"/dev/stdin"],
116
stdin=subprocess.PIPE,
117
stdout=subprocess.PIPE)
118
stdout = cc.communicate(
119
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
120
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
121
except (OSError, ValueError, IndexError):
122
# No value found
123
SO_BINDTODEVICE = None
124
125
if sys.version_info.major == 2:
126
str = unicode
127
128
if sys.version_info < (3, 2):
129
configparser.Configparser = configparser.SafeConfigParser
130
131
version = "1.8.8"
89
132
stored_state_file = "clients.pickle"
90
133
91
134
logger = logging.getLogger()
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
135
logging.captureWarnings(True) # Show warnings via the logging system
136
syslogger = None
95
137
96
138
try:
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
139
if_nametoindex = ctypes.cdll.LoadLibrary(
140
ctypes.util.find_library("c")).if_nametoindex
100
141
except (OSError, AttributeError):
142
101
143
def if_nametoindex(interface):
102
144
"Get an interface index the hard way, i.e. using fcntl()"
103
145
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
104
146
with contextlib.closing(socket.socket()) as s:
105
147
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
148
struct.pack(b"16s16x", interface))
149
interface_index = struct.unpack("I", ifreq[16:20])[0]
110
150
return interface_index
111
151
112
152
153
def copy_function(func):
154
"""Make a copy of a function"""
155
if sys.version_info.major == 2:
156
return types.FunctionType(func.func_code,
157
func.func_globals,
158
func.func_name,
159
func.func_defaults,
160
func.func_closure)
161
else:
162
return types.FunctionType(func.__code__,
163
func.__globals__,
164
func.__name__,
165
func.__defaults__,
166
func.__closure__)
167
168
113
169
def initlogger(debug, level=logging.WARNING):
114
170
"""init logger and add loglevel"""
115
171
172
global syslogger
173
syslogger = (logging.handlers.SysLogHandler(
174
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
175
address="/dev/log"))
116
176
syslogger.setFormatter(logging.Formatter
117
177
('Mandos [%(process)d]: %(levelname)s:'
118
178
' %(message)s'))
119
179
logger.addHandler(syslogger)
120
180
121
181
if debug:
122
182
console = logging.StreamHandler()
123
183
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
133
193
pass
134
194
135
195
136
class PGPEngine(object):
196
class PGPEngine:
137
197
"""A simple class for OpenPGP symmetric encryption & decryption"""
198
138
199
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
140
200
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
201
self.gpg = "gpg"
202
try:
203
output = subprocess.check_output(["gpgconf"])
204
for line in output.splitlines():
205
name, text, path = line.split(b":")
206
if name == b"gpg":
207
self.gpg = path
208
break
209
except OSError as e:
210
if e.errno != errno.ENOENT:
211
raise
212
self.gnupgargs = ['--batch',
213
'--homedir', self.tempdir,
214
'--force-mdc',
215
'--quiet']
216
# Only GPG version 1 has the --no-use-agent option.
217
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
218
self.gnupgargs.append("--no-use-agent")
219
148
220
def __enter__(self):
149
221
return self
150
151
def __exit__ (self, exc_type, exc_value, traceback):
222
223
def __exit__(self, exc_type, exc_value, traceback):
152
224
self._cleanup()
153
225
return False
154
226
155
227
def __del__(self):
156
228
self._cleanup()
157
229
158
230
def _cleanup(self):
159
231
if self.tempdir is not None:
160
232
# Delete contents of tempdir
161
233
for root, dirs, files in os.walk(self.tempdir,
162
topdown = False):
234
topdown=False):
163
235
for filename in files:
164
236
os.remove(os.path.join(root, filename))
165
237
for dirname in dirs:
167
239
# Remove tempdir
168
240
os.rmdir(self.tempdir)
169
241
self.tempdir = None
170
242
171
243
def password_encode(self, password):
172
244
# Passphrase can not be empty and can not contain newlines or
173
245
# NUL bytes. So we prefix it and hex encode it.
174
return b"mandos" + binascii.hexlify(password)
175
246
encoded = b"mandos" + binascii.hexlify(password)
247
if len(encoded) > 2048:
248
# GnuPG can't handle long passwords, so encode differently
249
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
250
.replace(b"\n", b"\\n")
251
.replace(b"\0", b"\\x00"))
252
return encoded
253
176
254
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
255
passphrase = self.password_encode(password)
256
with tempfile.NamedTemporaryFile(
257
dir=self.tempdir) as passfile:
258
passfile.write(passphrase)
259
passfile.flush()
260
proc = subprocess.Popen([self.gpg, '--symmetric',
261
'--passphrase-file',
262
passfile.name]
263
+ self.gnupgargs,
264
stdin=subprocess.PIPE,
265
stdout=subprocess.PIPE,
266
stderr=subprocess.PIPE)
267
ciphertext, err = proc.communicate(input=data)
268
if proc.returncode != 0:
269
raise PGPError(err)
191
270
return ciphertext
192
271
193
272
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
273
passphrase = self.password_encode(password)
274
with tempfile.NamedTemporaryFile(
275
dir=self.tempdir) as passfile:
276
passfile.write(passphrase)
277
passfile.flush()
278
proc = subprocess.Popen([self.gpg, '--decrypt',
279
'--passphrase-file',
280
passfile.name]
281
+ self.gnupgargs,
282
stdin=subprocess.PIPE,
283
stdout=subprocess.PIPE,
284
stderr=subprocess.PIPE)
285
decrypted_plaintext, err = proc.communicate(input=data)
286
if proc.returncode != 0:
287
raise PGPError(err)
208
288
return decrypted_plaintext
209
289
210
290
291
# Pretend that we have an Avahi module
292
class avahi:
293
"""This isn't so much a class as it is a module-like namespace."""
294
IF_UNSPEC = -1 # avahi-common/address.h
295
PROTO_UNSPEC = -1 # avahi-common/address.h
296
PROTO_INET = 0 # avahi-common/address.h
297
PROTO_INET6 = 1 # avahi-common/address.h
298
DBUS_NAME = "org.freedesktop.Avahi"
299
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
300
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
301
DBUS_PATH_SERVER = "/"
302
303
@staticmethod
304
def string_array_to_txt_array(t):
305
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
306
for s in t), signature="ay")
307
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
308
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
309
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
310
SERVER_INVALID = 0 # avahi-common/defs.h
311
SERVER_REGISTERING = 1 # avahi-common/defs.h
312
SERVER_RUNNING = 2 # avahi-common/defs.h
313
SERVER_COLLISION = 3 # avahi-common/defs.h
314
SERVER_FAILURE = 4 # avahi-common/defs.h
315
211
316
212
317
class AvahiError(Exception):
213
318
def __init__(self, value, *args, **kwargs):
214
319
self.value = value
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
320
return super(AvahiError, self).__init__(value, *args,
321
**kwargs)
322
218
323
219
324
class AvahiServiceError(AvahiError):
220
325
pass
221
326
327
222
328
class AvahiGroupError(AvahiError):
223
329
pass
224
330
225
331
226
class AvahiService(object):
332
class AvahiService:
227
333
"""An Avahi (Zeroconf) service.
228
334
229
335
Attributes:
230
336
interface: integer; avahi.IF_UNSPEC or an interface index.
231
337
Used to optionally bind to the specified interface.
232
338
name: string; Example: 'Mandos'
233
339
type: string; Example: '_mandos._tcp'.
234
See <http://www.dns-sd.org/ServiceTypes.html>
340
See <https://www.iana.org/assignments/service-names-port-numbers>
235
341
port: integer; what port to announce
236
342
TXT: list of strings; TXT record for the service
237
343
domain: string; Domain to publish on, default to .local if empty.
243
349
server: D-Bus Server
244
350
bus: dbus.SystemBus()
245
351
"""
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):
352
353
def __init__(self,
354
interface=avahi.IF_UNSPEC,
355
name=None,
356
servicetype=None,
357
port=None,
358
TXT=None,
359
domain="",
360
host="",
361
max_renames=32768,
362
protocol=avahi.PROTO_UNSPEC,
363
bus=None):
250
364
self.interface = interface
251
365
self.name = name
252
366
self.type = servicetype
261
375
self.server = None
262
376
self.bus = bus
263
377
self.entry_group_state_changed_match = None
264
def rename(self):
378
379
def rename(self, remove=True):
265
380
"""Derived from the Avahi example code"""
266
381
if self.rename_count >= self.max_renames:
267
382
logger.critical("No suitable Zeroconf service name found"
268
383
" after %i retries, exiting.",
269
384
self.rename_count)
270
385
raise AvahiServiceError("Too many renames")
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
386
self.name = str(
387
self.server.GetAlternativeServiceName(self.name))
388
self.rename_count += 1
273
389
logger.info("Changing Zeroconf service name to %r ...",
274
390
self.name)
275
self.remove()
391
if remove:
392
self.remove()
276
393
try:
277
394
self.add()
278
395
except dbus.exceptions.DBusException as error:
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
396
if (error.get_dbus_name()
397
== "org.freedesktop.Avahi.CollisionError"):
398
logger.info("Local Zeroconf service name collision.")
399
return self.rename(remove=False)
400
else:
401
logger.critical("D-Bus Exception", exc_info=error)
402
self.cleanup()
403
os._exit(1)
404
283
405
def remove(self):
284
406
"""Derived from the Avahi example code"""
285
407
if self.entry_group_state_changed_match is not None:
287
409
self.entry_group_state_changed_match = None
288
410
if self.group is not None:
289
411
self.group.Reset()
412
290
413
def add(self):
291
414
"""Derived from the Avahi example code"""
292
415
self.remove()
309
432
dbus.UInt16(self.port),
310
433
avahi.string_array_to_txt_array(self.TXT))
311
434
self.group.Commit()
435
312
436
def entry_group_state_changed(self, state, error):
313
437
"""Derived from the Avahi example code"""
314
438
logger.debug("Avahi entry group state change: %i", state)
315
439
316
440
if state == avahi.ENTRY_GROUP_ESTABLISHED:
317
441
logger.debug("Zeroconf service established.")
318
442
elif state == avahi.ENTRY_GROUP_COLLISION:
320
444
self.rename()
321
445
elif state == avahi.ENTRY_GROUP_FAILURE:
322
446
logger.critical("Avahi: Error in group state changed %s",
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
447
str(error))
448
raise AvahiGroupError("State changed: {!s}".format(error))
449
326
450
def cleanup(self):
327
451
"""Derived from the Avahi example code"""
328
452
if self.group is not None:
333
457
pass
334
458
self.group = None
335
459
self.remove()
460
336
461
def server_state_changed(self, state, error=None):
337
462
"""Derived from the Avahi example code"""
338
463
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" }
464
bad_states = {
465
avahi.SERVER_INVALID: "Zeroconf server invalid",
466
avahi.SERVER_REGISTERING: None,
467
avahi.SERVER_COLLISION: "Zeroconf server name collision",
468
avahi.SERVER_FAILURE: "Zeroconf server failure",
469
}
346
470
if state in bad_states:
347
471
if bad_states[state] is not None:
348
472
if error is None:
351
475
logger.error(bad_states[state] + ": %r", error)
352
476
self.cleanup()
353
477
elif state == avahi.SERVER_RUNNING:
354
self.add()
478
try:
479
self.add()
480
except dbus.exceptions.DBusException as error:
481
if (error.get_dbus_name()
482
== "org.freedesktop.Avahi.CollisionError"):
483
logger.info("Local Zeroconf service name"
484
" collision.")
485
return self.rename(remove=False)
486
else:
487
logger.critical("D-Bus Exception", exc_info=error)
488
self.cleanup()
489
os._exit(1)
355
490
else:
356
491
if error is None:
357
492
logger.debug("Unknown state: %r", state)
358
493
else:
359
494
logger.debug("Unknown state: %r: %r", state, error)
495
360
496
def activate(self):
361
497
"""Derived from the Avahi example code"""
362
498
if self.server is None:
366
502
follow_name_owner_changes=True),
367
503
avahi.DBUS_INTERFACE_SERVER)
368
504
self.server.connect_to_signal("StateChanged",
369
self.server_state_changed)
505
self.server_state_changed)
370
506
self.server_state_changed(self.server.GetState())
371
507
508
372
509
class AvahiServiceToSyslog(AvahiService):
373
def rename(self):
510
def rename(self, *args, **kwargs):
374
511
"""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))
512
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
513
syslogger.setFormatter(logging.Formatter(
514
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
515
.format(self.name)))
380
516
return ret
381
517
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):
518
519
# Pretend that we have a GnuTLS module
520
class gnutls:
521
"""This isn't so much a class as it is a module-like namespace."""
522
523
library = ctypes.util.find_library("gnutls")
524
if library is None:
525
library = ctypes.util.find_library("gnutls-deb0")
526
_library = ctypes.cdll.LoadLibrary(library)
527
del library
528
529
# Unless otherwise indicated, the constants and types below are
530
# all from the gnutls/gnutls.h C header file.
531
532
# Constants
533
E_SUCCESS = 0
534
E_INTERRUPTED = -52
535
E_AGAIN = -28
536
CRT_OPENPGP = 2
537
CRT_RAWPK = 3
538
CLIENT = 2
539
SHUT_RDWR = 0
540
CRD_CERTIFICATE = 1
541
E_NO_CERTIFICATE_FOUND = -49
542
X509_FMT_DER = 0
543
NO_TICKETS = 1<<10
544
ENABLE_RAWPK = 1<<18
545
CTYPE_PEERS = 3
546
KEYID_USE_SHA256 = 1 # gnutls/x509.h
547
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
548
549
# Types
550
class session_int(ctypes.Structure):
551
_fields_ = []
552
session_t = ctypes.POINTER(session_int)
553
554
class certificate_credentials_st(ctypes.Structure):
555
_fields_ = []
556
certificate_credentials_t = ctypes.POINTER(
557
certificate_credentials_st)
558
certificate_type_t = ctypes.c_int
559
560
class datum_t(ctypes.Structure):
561
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
562
('size', ctypes.c_uint)]
563
564
class openpgp_crt_int(ctypes.Structure):
565
_fields_ = []
566
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
567
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
568
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
569
credentials_type_t = ctypes.c_int
570
transport_ptr_t = ctypes.c_void_p
571
close_request_t = ctypes.c_int
572
573
# Exceptions
574
class Error(Exception):
575
def __init__(self, message=None, code=None, args=()):
576
# Default usage is by a message string, but if a return
577
# code is passed, convert it to a string with
578
# gnutls.strerror()
579
self.code = code
580
if message is None and code is not None:
581
message = gnutls.strerror(code)
582
return super(gnutls.Error, self).__init__(
583
message, *args)
584
585
class CertificateSecurityError(Error):
586
pass
587
588
# Classes
589
class Credentials:
590
def __init__(self):
591
self._c_object = gnutls.certificate_credentials_t()
592
gnutls.certificate_allocate_credentials(
593
ctypes.byref(self._c_object))
594
self.type = gnutls.CRD_CERTIFICATE
595
596
def __del__(self):
597
gnutls.certificate_free_credentials(self._c_object)
598
599
class ClientSession:
600
def __init__(self, socket, credentials=None):
601
self._c_object = gnutls.session_t()
602
gnutls_flags = gnutls.CLIENT
603
if gnutls.check_version(b"3.5.6"):
604
gnutls_flags |= gnutls.NO_TICKETS
605
if gnutls.has_rawpk:
606
gnutls_flags |= gnutls.ENABLE_RAWPK
607
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
608
del gnutls_flags
609
gnutls.set_default_priority(self._c_object)
610
gnutls.transport_set_ptr(self._c_object, socket.fileno())
611
gnutls.handshake_set_private_extensions(self._c_object,
612
True)
613
self.socket = socket
614
if credentials is None:
615
credentials = gnutls.Credentials()
616
gnutls.credentials_set(self._c_object, credentials.type,
617
ctypes.cast(credentials._c_object,
618
ctypes.c_void_p))
619
self.credentials = credentials
620
621
def __del__(self):
622
gnutls.deinit(self._c_object)
623
624
def handshake(self):
625
return gnutls.handshake(self._c_object)
626
627
def send(self, data):
628
data = bytes(data)
629
data_len = len(data)
630
while data_len > 0:
631
data_len -= gnutls.record_send(self._c_object,
632
data[-data_len:],
633
data_len)
634
635
def bye(self):
636
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
637
638
# Error handling functions
639
def _error_code(result):
640
"""A function to raise exceptions on errors, suitable
641
for the 'restype' attribute on ctypes functions"""
642
if result >= 0:
643
return result
644
if result == gnutls.E_NO_CERTIFICATE_FOUND:
645
raise gnutls.CertificateSecurityError(code=result)
646
raise gnutls.Error(code=result)
647
648
def _retry_on_error(result, func, arguments):
649
"""A function to retry on some errors, suitable
650
for the 'errcheck' attribute on ctypes functions"""
651
while result < 0:
652
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
653
return _error_code(result)
654
result = func(*arguments)
655
return result
656
657
# Unless otherwise indicated, the function declarations below are
658
# all from the gnutls/gnutls.h C header file.
659
660
# Functions
661
priority_set_direct = _library.gnutls_priority_set_direct
662
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
663
ctypes.POINTER(ctypes.c_char_p)]
664
priority_set_direct.restype = _error_code
665
666
init = _library.gnutls_init
667
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
668
init.restype = _error_code
669
670
set_default_priority = _library.gnutls_set_default_priority
671
set_default_priority.argtypes = [session_t]
672
set_default_priority.restype = _error_code
673
674
record_send = _library.gnutls_record_send
675
record_send.argtypes = [session_t, ctypes.c_void_p,
676
ctypes.c_size_t]
677
record_send.restype = ctypes.c_ssize_t
678
record_send.errcheck = _retry_on_error
679
680
certificate_allocate_credentials = (
681
_library.gnutls_certificate_allocate_credentials)
682
certificate_allocate_credentials.argtypes = [
683
ctypes.POINTER(certificate_credentials_t)]
684
certificate_allocate_credentials.restype = _error_code
685
686
certificate_free_credentials = (
687
_library.gnutls_certificate_free_credentials)
688
certificate_free_credentials.argtypes = [
689
certificate_credentials_t]
690
certificate_free_credentials.restype = None
691
692
handshake_set_private_extensions = (
693
_library.gnutls_handshake_set_private_extensions)
694
handshake_set_private_extensions.argtypes = [session_t,
695
ctypes.c_int]
696
handshake_set_private_extensions.restype = None
697
698
credentials_set = _library.gnutls_credentials_set
699
credentials_set.argtypes = [session_t, credentials_type_t,
700
ctypes.c_void_p]
701
credentials_set.restype = _error_code
702
703
strerror = _library.gnutls_strerror
704
strerror.argtypes = [ctypes.c_int]
705
strerror.restype = ctypes.c_char_p
706
707
certificate_type_get = _library.gnutls_certificate_type_get
708
certificate_type_get.argtypes = [session_t]
709
certificate_type_get.restype = _error_code
710
711
certificate_get_peers = _library.gnutls_certificate_get_peers
712
certificate_get_peers.argtypes = [session_t,
713
ctypes.POINTER(ctypes.c_uint)]
714
certificate_get_peers.restype = ctypes.POINTER(datum_t)
715
716
global_set_log_level = _library.gnutls_global_set_log_level
717
global_set_log_level.argtypes = [ctypes.c_int]
718
global_set_log_level.restype = None
719
720
global_set_log_function = _library.gnutls_global_set_log_function
721
global_set_log_function.argtypes = [log_func]
722
global_set_log_function.restype = None
723
724
deinit = _library.gnutls_deinit
725
deinit.argtypes = [session_t]
726
deinit.restype = None
727
728
handshake = _library.gnutls_handshake
729
handshake.argtypes = [session_t]
730
handshake.restype = _error_code
731
handshake.errcheck = _retry_on_error
732
733
transport_set_ptr = _library.gnutls_transport_set_ptr
734
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
735
transport_set_ptr.restype = None
736
737
bye = _library.gnutls_bye
738
bye.argtypes = [session_t, close_request_t]
739
bye.restype = _error_code
740
bye.errcheck = _retry_on_error
741
742
check_version = _library.gnutls_check_version
743
check_version.argtypes = [ctypes.c_char_p]
744
check_version.restype = ctypes.c_char_p
745
746
_need_version = b"3.3.0"
747
if check_version(_need_version) is None:
748
raise self.Error("Needs GnuTLS {} or later"
749
.format(_need_version))
750
751
_tls_rawpk_version = b"3.6.6"
752
has_rawpk = bool(check_version(_tls_rawpk_version))
753
754
if has_rawpk:
755
# Types
756
class pubkey_st(ctypes.Structure):
757
_fields = []
758
pubkey_t = ctypes.POINTER(pubkey_st)
759
760
x509_crt_fmt_t = ctypes.c_int
761
762
# All the function declarations below are from gnutls/abstract.h
763
pubkey_init = _library.gnutls_pubkey_init
764
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
765
pubkey_init.restype = _error_code
766
767
pubkey_import = _library.gnutls_pubkey_import
768
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
769
x509_crt_fmt_t]
770
pubkey_import.restype = _error_code
771
772
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
773
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
774
ctypes.POINTER(ctypes.c_ubyte),
775
ctypes.POINTER(ctypes.c_size_t)]
776
pubkey_get_key_id.restype = _error_code
777
778
pubkey_deinit = _library.gnutls_pubkey_deinit
779
pubkey_deinit.argtypes = [pubkey_t]
780
pubkey_deinit.restype = None
781
else:
782
# All the function declarations below are from gnutls/openpgp.h
783
784
openpgp_crt_init = _library.gnutls_openpgp_crt_init
785
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
786
openpgp_crt_init.restype = _error_code
787
788
openpgp_crt_import = _library.gnutls_openpgp_crt_import
789
openpgp_crt_import.argtypes = [openpgp_crt_t,
790
ctypes.POINTER(datum_t),
791
openpgp_crt_fmt_t]
792
openpgp_crt_import.restype = _error_code
793
794
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
795
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
796
ctypes.POINTER(ctypes.c_uint)]
797
openpgp_crt_verify_self.restype = _error_code
798
799
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
800
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
801
openpgp_crt_deinit.restype = None
802
803
openpgp_crt_get_fingerprint = (
804
_library.gnutls_openpgp_crt_get_fingerprint)
805
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
806
ctypes.c_void_p,
807
ctypes.POINTER(
808
ctypes.c_size_t)]
809
openpgp_crt_get_fingerprint.restype = _error_code
810
811
if check_version(b"3.6.4"):
812
certificate_type_get2 = _library.gnutls_certificate_type_get2
813
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
814
certificate_type_get2.restype = _error_code
815
816
# Remove non-public functions
817
del _error_code, _retry_on_error
818
819
820
def call_pipe(connection, # : multiprocessing.Connection
821
func, *args, **kwargs):
822
"""This function is meant to be called by multiprocessing.Process
823
824
This function runs func(*args, **kwargs), and writes the resulting
825
return value on the provided multiprocessing.Connection.
826
"""
827
connection.send(func(*args, **kwargs))
828
connection.close()
829
830
831
class Client:
389
832
"""A representation of a client host served by this server.
390
833
391
834
Attributes:
392
835
approved: bool(); 'None' if not yet approved/disapproved
393
836
approval_delay: datetime.timedelta(); Time to wait for approval
394
837
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
838
checker: multiprocessing.Process(); a running checker process used
839
to see if the client lives. 'None' if no process is
840
running.
841
checker_callback_tag: a GLib event source tag, or None
399
842
checker_command: string; External command which is run to check
400
843
if client lives. %() expansions are done at
401
844
runtime with vars(self) as dict, so that for
402
845
instance %(name)s can be used in the command.
403
checker_initiator_tag: a gobject event source tag, or None
846
checker_initiator_tag: a GLib event source tag, or None
404
847
created: datetime.datetime(); (UTC) object creation
405
848
client_structure: Object describing what attributes a client has
406
849
and is used for storing the client at exit
407
850
current_checker_command: string; current running checker_command
408
disable_initiator_tag: a gobject event source tag, or None
851
disable_initiator_tag: a GLib event source tag, or None
409
852
enabled: bool()
410
853
fingerprint: string (40 or 32 hexadecimal digits); used to
411
uniquely identify the client
854
uniquely identify an OpenPGP client
855
key_id: string (64 hexadecimal digits); used to uniquely identify
856
a client using raw public keys
412
857
host: string; available for use by the checker command
413
858
interval: datetime.timedelta(); How often to start a new checker
414
859
last_approval_request: datetime.datetime(); (UTC) or None
415
860
last_checked_ok: datetime.datetime(); (UTC) or None
416
861
last_checker_status: integer between 0 and 255 reflecting exit
417
862
status of last checker. -1 reflects crashed
418
checker, or None.
863
checker, -2 means no checker completed yet.
864
last_checker_signal: The signal which killed the last checker, if
865
last_checker_status is -1
419
866
last_enabled: datetime.datetime(); (UTC) or None
420
867
name: string; from the config file, used in log messages and
421
868
D-Bus identifiers
422
869
secret: bytestring; sent verbatim (over TLS) to client
423
870
timeout: datetime.timedelta(); How long from last_checked_ok
424
871
until this client is disabled
425
extended_timeout: extra long timeout when password has been sent
872
extended_timeout: extra long timeout when secret has been sent
426
873
runtime_expansions: Allowed attributes for runtime expansion.
427
874
expires: datetime.datetime(); time (UTC) when a client will be
428
875
disabled, or None
876
server_settings: The server_settings dict from main()
429
877
"""
430
878
431
879
runtime_expansions = ("approval_delay", "approval_duration",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
880
"created", "enabled", "expires", "key_id",
881
"fingerprint", "host", "interval",
882
"last_approval_request", "last_checked_ok",
434
883
"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)
884
client_defaults = {
885
"timeout": "PT5M",
886
"extended_timeout": "PT15M",
887
"interval": "PT2M",
888
"checker": "fping -q -- %%(host)s",
889
"host": "",
890
"approval_delay": "PT0S",
891
"approval_duration": "PT1S",
892
"approved_by_default": "True",
893
"enabled": "True",
894
}
460
895
461
896
@staticmethod
462
897
def config_parser(config):
470
905
for client_name in config.sections():
471
906
section = dict(config.items(client_name))
472
907
client = settings[client_name] = {}
473
908
474
909
client["host"] = section["host"]
475
910
# Reformat values from string types to Python types
476
911
client["approved_by_default"] = config.getboolean(
477
912
client_name, "approved_by_default")
478
913
client["enabled"] = config.getboolean(client_name,
479
914
"enabled")
480
915
916
# Uppercase and remove spaces from key_id and fingerprint
917
# for later comparison purposes with return value from the
918
# key_id() and fingerprint() functions
919
client["key_id"] = (section.get("key_id", "").upper()
920
.replace(" ", ""))
481
921
client["fingerprint"] = (section["fingerprint"].upper()
482
922
.replace(" ", ""))
483
923
if "secret" in section:
484
client["secret"] = section["secret"].decode("base64")
924
client["secret"] = codecs.decode(section["secret"]
925
.encode("utf-8"),
926
"base64")
485
927
elif "secfile" in section:
486
928
with open(os.path.expanduser(os.path.expandvars
487
929
(section["secfile"])),
488
930
"rb") as secfile:
489
931
client["secret"] = secfile.read()
490
932
else:
491
raise TypeError("No secret or secfile for section %s"
492
% section)
933
raise TypeError("No secret or secfile for section {}"
934
.format(section))
493
935
client["timeout"] = string_to_delta(section["timeout"])
494
936
client["extended_timeout"] = string_to_delta(
495
937
section["extended_timeout"])
501
943
client["checker_command"] = section["checker"]
502
944
client["last_approval_request"] = None
503
945
client["last_checked_ok"] = None
504
client["last_checker_status"] = None
505
946
client["last_checker_status"] = -2
947
506
948
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."""
949
950
def __init__(self, settings, name=None, server_settings=None):
513
951
self.name = name
952
if server_settings is None:
953
server_settings = {}
954
self.server_settings = server_settings
514
955
# adding all client settings
515
for setting, value in settings.iteritems():
956
for setting, value in settings.items():
516
957
setattr(self, setting, value)
517
958
518
959
if self.enabled:
519
960
if not hasattr(self, "last_enabled"):
520
961
self.last_enabled = datetime.datetime.utcnow()
524
965
else:
525
966
self.last_enabled = None
526
967
self.expires = None
527
968
528
969
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
970
logger.debug(" Key ID: %s", self.key_id)
532
971
logger.debug(" Fingerprint: %s", self.fingerprint)
533
972
self.created = settings.get("created",
534
973
datetime.datetime.utcnow())
541
980
self.current_checker_command = None
542
981
self.approved = None
543
982
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()
983
self.changedstate = multiprocessing_manager.Condition(
984
multiprocessing_manager.Lock())
985
self.client_structure = [attr
986
for attr in self.__dict__.keys()
549
987
if not attr.startswith("_")]
550
988
self.client_structure.append("client_structure")
551
552
for name, t in inspect.getmembers(type(self),
553
lambda obj:
554
isinstance(obj,
555
property)):
989
990
for name, t in inspect.getmembers(
991
type(self), lambda obj: isinstance(obj, property)):
556
992
if not name.startswith("_"):
557
993
self.client_structure.append(name)
558
994
559
995
# Send notice to process children that client state has changed
560
996
def send_changedstate(self):
561
997
with self.changedstate:
562
998
self.changedstate.notify_all()
563
999
564
1000
def enable(self):
565
1001
"""Start this client's checker and timeout hooks"""
566
1002
if getattr(self, "enabled", False):
567
1003
# Already enabled
568
1004
return
569
self.send_changedstate()
570
1005
self.expires = datetime.datetime.utcnow() + self.timeout
571
1006
self.enabled = True
572
1007
self.last_enabled = datetime.datetime.utcnow()
573
1008
self.init_checker()
574
1009
self.send_changedstate()
1010
575
1011
def disable(self, quiet=True):
576
1012
"""Disable this client."""
577
1013
if not getattr(self, "enabled", False):
578
1014
return False
579
1015
if not quiet:
580
self.send_changedstate()
581
if not quiet:
582
1016
logger.info("Disabling client %s", self.name)
583
if getattr(self, "disable_initiator_tag", False):
584
gobject.source_remove(self.disable_initiator_tag)
1017
if getattr(self, "disable_initiator_tag", None) is not None:
1018
GLib.source_remove(self.disable_initiator_tag)
585
1019
self.disable_initiator_tag = None
586
1020
self.expires = None
587
if getattr(self, "checker_initiator_tag", False):
588
gobject.source_remove(self.checker_initiator_tag)
1021
if getattr(self, "checker_initiator_tag", None) is not None:
1022
GLib.source_remove(self.checker_initiator_tag)
589
1023
self.checker_initiator_tag = None
590
1024
self.stop_checker()
591
1025
self.enabled = False
592
# Do not run this again if called by a gobject.timeout_add
1026
if not quiet:
1027
self.send_changedstate()
1028
# Do not run this again if called by a GLib.timeout_add
593
1029
return False
594
1030
595
1031
def __del__(self):
596
1032
self.disable()
597
1033
598
1034
def init_checker(self):
599
1035
# Schedule a new checker to be started an 'interval' from now,
600
1036
# and every interval from then on.
601
self.checker_initiator_tag = (gobject.timeout_add
602
(self.interval_milliseconds(),
603
self.start_checker))
1037
if self.checker_initiator_tag is not None:
1038
GLib.source_remove(self.checker_initiator_tag)
1039
self.checker_initiator_tag = GLib.timeout_add(
1040
int(self.interval.total_seconds() * 1000),
1041
self.start_checker)
604
1042
# Schedule a disable() when 'timeout' has passed
605
self.disable_initiator_tag = (gobject.timeout_add
606
(self.timeout_milliseconds(),
607
self.disable))
1043
if self.disable_initiator_tag is not None:
1044
GLib.source_remove(self.disable_initiator_tag)
1045
self.disable_initiator_tag = GLib.timeout_add(
1046
int(self.timeout.total_seconds() * 1000), self.disable)
608
1047
# Also start a new checker *right now*.
609
1048
self.start_checker()
610
611
def checker_callback(self, pid, condition, command):
1049
1050
def checker_callback(self, source, condition, connection,
1051
command):
612
1052
"""The checker has completed, so take appropriate actions."""
1053
# Read return code from connection (see call_pipe)
1054
returncode = connection.recv()
1055
connection.close()
1056
if self.checker is not None:
1057
self.checker.join()
613
1058
self.checker_callback_tag = None
614
1059
self.checker = None
615
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
1060
1061
if returncode >= 0:
1062
self.last_checker_status = returncode
1063
self.last_checker_signal = None
617
1064
if self.last_checker_status == 0:
618
1065
logger.info("Checker for %(name)s succeeded",
619
1066
vars(self))
620
1067
self.checked_ok()
621
1068
else:
622
logger.info("Checker for %(name)s failed",
623
vars(self))
1069
logger.info("Checker for %(name)s failed", vars(self))
624
1070
else:
625
1071
self.last_checker_status = -1
1072
self.last_checker_signal = -returncode
626
1073
logger.warning("Checker for %(name)s crashed?",
627
1074
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
"""
1075
return False
1076
1077
def checked_ok(self):
1078
"""Assert that the client has been seen, alive and well."""
1079
self.last_checked_ok = datetime.datetime.utcnow()
1080
self.last_checker_status = 0
1081
self.last_checker_signal = None
1082
self.bump_timeout()
1083
1084
def bump_timeout(self, timeout=None):
1085
"""Bump up the timeout for this client."""
635
1086
if timeout is None:
636
1087
timeout = self.timeout
637
self.last_checked_ok = datetime.datetime.utcnow()
638
1088
if self.disable_initiator_tag is not None:
639
gobject.source_remove(self.disable_initiator_tag)
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = None
640
1091
if getattr(self, "enabled", False):
641
self.disable_initiator_tag = (gobject.timeout_add
642
(timedelta_to_milliseconds
643
(timeout), self.disable))
1092
self.disable_initiator_tag = GLib.timeout_add(
1093
int(timeout.total_seconds() * 1000), self.disable)
644
1094
self.expires = datetime.datetime.utcnow() + timeout
645
1095
646
1096
def need_approval(self):
647
1097
self.last_approval_request = datetime.datetime.utcnow()
648
1098
649
1099
def start_checker(self):
650
1100
"""Start a new checker subprocess if one is not running.
651
1101
652
1102
If a checker already exists, leave it running and do
653
1103
nothing."""
654
1104
# 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
1105
# did that, and if a checker (for some reason) started running
1106
# slowly and taking more than 'interval' time, then the client
1107
# would inevitably timeout, since no checker would get a
1108
# chance to run to completion. If we instead leave running
659
1109
# checkers alone, the checker would have to take more time
660
1110
# than 'timeout' for the client to be disabled, which is as it
661
1111
# 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)
1112
1113
if self.checker is not None and not self.checker.is_alive():
1114
logger.warning("Checker was not alive; joining")
1115
self.checker.join()
1116
self.checker = None
676
1117
# Start a new checker if needed
677
1118
if self.checker is None:
1119
# Escape attributes for the shell
1120
escaped_attrs = {
1121
attr: re.escape(str(getattr(self, attr)))
1122
for attr in self.runtime_expansions}
678
1123
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
1124
command = self.checker_command % escaped_attrs
1125
except TypeError as error:
1126
logger.error('Could not format string "%s"',
1127
self.checker_command,
1128
exc_info=error)
1129
return True # Try again later
697
1130
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
1131
logger.info("Starting checker %r for %s", command,
1132
self.name)
1133
# We don't need to redirect stdout and stderr, since
1134
# in normal mode, that is already done by daemon(),
1135
# and in debug mode we don't want to. (Stdin is
1136
# always replaced by /dev/null.)
1137
# The exception is when not debugging but nevertheless
1138
# running in the foreground; use the previously
1139
# created wnull.
1140
popen_args = {"close_fds": True,
1141
"shell": True,
1142
"cwd": "/"}
1143
if (not self.server_settings["debug"]
1144
and self.server_settings["foreground"]):
1145
popen_args.update({"stdout": wnull,
1146
"stderr": wnull})
1147
pipe = multiprocessing.Pipe(duplex=False)
1148
self.checker = multiprocessing.Process(
1149
target=call_pipe,
1150
args=(pipe[1], subprocess.call, command),
1151
kwargs=popen_args)
1152
self.checker.start()
1153
self.checker_callback_tag = GLib.io_add_watch(
1154
GLib.IOChannel.unix_new(pipe[0].fileno()),
1155
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1156
self.checker_callback, pipe[0], command)
1157
# Re-run this periodically if run by GLib.timeout_add
722
1158
return True
723
1159
724
1160
def stop_checker(self):
725
1161
"""Force the checker process, if any, to stop."""
726
1162
if self.checker_callback_tag:
727
gobject.source_remove(self.checker_callback_tag)
1163
GLib.source_remove(self.checker_callback_tag)
728
1164
self.checker_callback_tag = None
729
1165
if getattr(self, "checker", None) is None:
730
1166
return
731
1167
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
1168
self.checker.terminate()
740
1169
self.checker = None
741
1170
742
1171
743
def dbus_service_property(dbus_interface, signature="v",
744
access="readwrite", byte_arrays=False):
1172
def dbus_service_property(dbus_interface,
1173
signature="v",
1174
access="readwrite",
1175
byte_arrays=False):
745
1176
"""Decorators for marking methods of a DBusObjectWithProperties to
746
1177
become properties on the D-Bus.
747
1178
748
1179
The decorated method will be called with no arguments by "Get"
749
1180
and with one argument by "Set".
750
1181
751
1182
The parameters, where they are supported, are the same as
752
1183
dbus.service.method, except there is only "signature", since the
753
1184
type from Get() and the type sent to Set() is the same.
756
1187
# "Set" method, so we fail early here:
757
1188
if byte_arrays and signature != "ay":
758
1189
raise ValueError("Byte arrays not supported for non-'ay'"
759
" signature %r" % signature)
1190
" signature {!r}".format(signature))
1191
760
1192
def decorator(func):
761
1193
func._dbus_is_property = True
762
1194
func._dbus_interface = dbus_interface
765
1197
func._dbus_name = func.__name__
766
1198
if func._dbus_name.endswith("_dbus_property"):
767
1199
func._dbus_name = func._dbus_name[:-14]
768
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
769
return func
1200
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1201
return func
1202
1203
return decorator
1204
1205
1206
def dbus_interface_annotations(dbus_interface):
1207
"""Decorator for marking functions returning interface annotations
1208
1209
Usage:
1210
1211
@dbus_interface_annotations("org.example.Interface")
1212
def _foo(self): # Function name does not matter
1213
return {"org.freedesktop.DBus.Deprecated": "true",
1214
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1215
"false"}
1216
"""
1217
1218
def decorator(func):
1219
func._dbus_is_interface = True
1220
func._dbus_interface = dbus_interface
1221
func._dbus_name = dbus_interface
1222
return func
1223
1224
return decorator
1225
1226
1227
def dbus_annotations(annotations):
1228
"""Decorator to annotate D-Bus methods, signals or properties
1229
Usage:
1230
1231
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1232
"org.freedesktop.DBus.Property."
1233
"EmitsChangedSignal": "false"})
1234
@dbus_service_property("org.example.Interface", signature="b",
1235
access="r")
1236
def Property_dbus_property(self):
1237
return dbus.Boolean(False)
1238
1239
See also the DBusObjectWithAnnotations class.
1240
"""
1241
1242
def decorator(func):
1243
func._dbus_annotations = annotations
1244
return func
1245
770
1246
return decorator
771
1247
772
1248
773
1249
class DBusPropertyException(dbus.exceptions.DBusException):
774
1250
"""A base class for D-Bus property-related exceptions
775
1251
"""
776
def __unicode__(self):
777
return unicode(str(self))
1252
pass
778
1253
779
1254
780
1255
class DBusPropertyAccessException(DBusPropertyException):
789
1264
pass
790
1265
791
1266
792
class DBusObjectWithProperties(dbus.service.Object):
1267
class DBusObjectWithAnnotations(dbus.service.Object):
1268
"""A D-Bus object with annotations.
1269
1270
Classes inheriting from this can use the dbus_annotations
1271
decorator to add annotations to methods or signals.
1272
"""
1273
1274
@staticmethod
1275
def _is_dbus_thing(thing):
1276
"""Returns a function testing if an attribute is a D-Bus thing
1277
1278
If called like _is_dbus_thing("method") it returns a function
1279
suitable for use as predicate to inspect.getmembers().
1280
"""
1281
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1282
False)
1283
1284
def _get_all_dbus_things(self, thing):
1285
"""Returns a generator of (name, attribute) pairs
1286
"""
1287
return ((getattr(athing.__get__(self), "_dbus_name", name),
1288
athing.__get__(self))
1289
for cls in self.__class__.__mro__
1290
for name, athing in
1291
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1292
1293
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1294
out_signature="s",
1295
path_keyword='object_path',
1296
connection_keyword='connection')
1297
def Introspect(self, object_path, connection):
1298
"""Overloading of standard D-Bus method.
1299
1300
Inserts annotation tags on methods and signals.
1301
"""
1302
xmlstring = dbus.service.Object.Introspect(self, object_path,
1303
connection)
1304
try:
1305
document = xml.dom.minidom.parseString(xmlstring)
1306
1307
for if_tag in document.getElementsByTagName("interface"):
1308
# Add annotation tags
1309
for typ in ("method", "signal"):
1310
for tag in if_tag.getElementsByTagName(typ):
1311
annots = dict()
1312
for name, prop in (self.
1313
_get_all_dbus_things(typ)):
1314
if (name == tag.getAttribute("name")
1315
and prop._dbus_interface
1316
== if_tag.getAttribute("name")):
1317
annots.update(getattr(
1318
prop, "_dbus_annotations", {}))
1319
for name, value in annots.items():
1320
ann_tag = document.createElement(
1321
"annotation")
1322
ann_tag.setAttribute("name", name)
1323
ann_tag.setAttribute("value", value)
1324
tag.appendChild(ann_tag)
1325
# Add interface annotation tags
1326
for annotation, value in dict(
1327
itertools.chain.from_iterable(
1328
annotations().items()
1329
for name, annotations
1330
in self._get_all_dbus_things("interface")
1331
if name == if_tag.getAttribute("name")
1332
)).items():
1333
ann_tag = document.createElement("annotation")
1334
ann_tag.setAttribute("name", annotation)
1335
ann_tag.setAttribute("value", value)
1336
if_tag.appendChild(ann_tag)
1337
# Fix argument name for the Introspect method itself
1338
if (if_tag.getAttribute("name")
1339
== dbus.INTROSPECTABLE_IFACE):
1340
for cn in if_tag.getElementsByTagName("method"):
1341
if cn.getAttribute("name") == "Introspect":
1342
for arg in cn.getElementsByTagName("arg"):
1343
if (arg.getAttribute("direction")
1344
== "out"):
1345
arg.setAttribute("name",
1346
"xml_data")
1347
xmlstring = document.toxml("utf-8")
1348
document.unlink()
1349
except (AttributeError, xml.dom.DOMException,
1350
xml.parsers.expat.ExpatError) as error:
1351
logger.error("Failed to override Introspection method",
1352
exc_info=error)
1353
return xmlstring
1354
1355
1356
class DBusObjectWithProperties(DBusObjectWithAnnotations):
793
1357
"""A D-Bus object with properties.
794
1358
795
1359
Classes inheriting from this can use the dbus_service_property
796
1360
decorator to expose methods as D-Bus properties. It exposes the
797
1361
standard Get(), Set(), and GetAll() methods on the D-Bus.
798
1362
"""
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
1363
812
1364
def _get_dbus_property(self, interface_name, property_name):
813
1365
"""Returns a bound method if one exists which is a D-Bus
814
1366
property with the specified name and interface.
815
1367
"""
816
for cls in self.__class__.__mro__:
817
for name, value in (inspect.getmembers
818
(cls, self._is_dbus_property)):
1368
for cls in self.__class__.__mro__:
1369
for name, value in inspect.getmembers(
1370
cls, self._is_dbus_thing("property")):
819
1371
if (value._dbus_name == property_name
820
1372
and value._dbus_interface == interface_name):
821
1373
return value.__get__(self)
822
1374
823
1375
# 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",
1376
raise DBusPropertyNotFound("{}:{}.{}".format(
1377
self.dbus_object_path, interface_name, property_name))
1378
1379
@classmethod
1380
def _get_all_interface_names(cls):
1381
"""Get a sequence of all interfaces supported by an object"""
1382
return (name for name in set(getattr(getattr(x, attr),
1383
"_dbus_interface", None)
1384
for x in (inspect.getmro(cls))
1385
for attr in dir(x))
1386
if name is not None)
1387
1388
@dbus.service.method(dbus.PROPERTIES_IFACE,
1389
in_signature="ss",
829
1390
out_signature="v")
830
1391
def Get(self, interface_name, property_name):
831
1392
"""Standard D-Bus property Get() method, see D-Bus standard.
837
1398
if not hasattr(value, "variant_level"):
838
1399
return value
839
1400
return type(value)(value, variant_level=value.variant_level+1)
840
1401
841
1402
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
842
1403
def Set(self, interface_name, property_name, value):
843
1404
"""Standard D-Bus property Set() method, see D-Bus standard.
849
1410
# The byte_arrays option is not supported yet on
850
1411
# signatures other than "ay".
851
1412
if prop._dbus_signature != "ay":
852
raise ValueError
1413
raise ValueError("Byte arrays not supported for non-"
1414
"'ay' signature {!r}"
1415
.format(prop._dbus_signature))
853
1416
value = dbus.ByteArray(b''.join(chr(byte)
854
1417
for byte in value))
855
1418
prop(value)
856
857
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1419
1420
@dbus.service.method(dbus.PROPERTIES_IFACE,
1421
in_signature="s",
858
1422
out_signature="a{sv}")
859
1423
def GetAll(self, interface_name):
860
1424
"""Standard D-Bus property GetAll() method, see D-Bus
861
1425
standard.
862
1426
863
1427
Note: Will not include properties with access="write".
864
1428
"""
865
1429
properties = {}
866
for name, prop in self._get_all_dbus_properties():
1430
for name, prop in self._get_all_dbus_things("property"):
867
1431
if (interface_name
868
1432
and interface_name != prop._dbus_interface):
869
1433
# Interface non-empty but did not match
875
1439
if not hasattr(value, "variant_level"):
876
1440
properties[name] = value
877
1441
continue
878
properties[name] = type(value)(value, variant_level=
879
value.variant_level+1)
1442
properties[name] = type(value)(
1443
value, variant_level=value.variant_level + 1)
880
1444
return dbus.Dictionary(properties, signature="sv")
881
1445
1446
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1447
def PropertiesChanged(self, interface_name, changed_properties,
1448
invalidated_properties):
1449
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1450
standard.
1451
"""
1452
pass
1453
882
1454
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
883
1455
out_signature="s",
884
1456
path_keyword='object_path',
885
1457
connection_keyword='connection')
886
1458
def Introspect(self, object_path, connection):
887
"""Standard D-Bus method, overloaded to insert property tags.
1459
"""Overloading of standard D-Bus method.
1460
1461
Inserts property tags and interface annotation tags.
888
1462
"""
889
xmlstring = dbus.service.Object.Introspect(self, object_path,
890
connection)
1463
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1464
object_path,
1465
connection)
891
1466
try:
892
1467
document = xml.dom.minidom.parseString(xmlstring)
1468
893
1469
def make_tag(document, name, prop):
894
1470
e = document.createElement("property")
895
1471
e.setAttribute("name", name)
896
1472
e.setAttribute("type", prop._dbus_signature)
897
1473
e.setAttribute("access", prop._dbus_access)
898
1474
return e
1475
899
1476
for if_tag in document.getElementsByTagName("interface"):
1477
# Add property tags
900
1478
for tag in (make_tag(document, name, prop)
901
1479
for name, prop
902
in self._get_all_dbus_properties()
1480
in self._get_all_dbus_things("property")
903
1481
if prop._dbus_interface
904
1482
== if_tag.getAttribute("name")):
905
1483
if_tag.appendChild(tag)
1484
# Add annotation tags for properties
1485
for tag in if_tag.getElementsByTagName("property"):
1486
annots = dict()
1487
for name, prop in self._get_all_dbus_things(
1488
"property"):
1489
if (name == tag.getAttribute("name")
1490
and prop._dbus_interface
1491
== if_tag.getAttribute("name")):
1492
annots.update(getattr(
1493
prop, "_dbus_annotations", {}))
1494
for name, value in annots.items():
1495
ann_tag = document.createElement(
1496
"annotation")
1497
ann_tag.setAttribute("name", name)
1498
ann_tag.setAttribute("value", value)
1499
tag.appendChild(ann_tag)
906
1500
# Add the names to the return values for the
907
1501
# "org.freedesktop.DBus.Properties" methods
908
1502
if (if_tag.getAttribute("name")
923
1517
except (AttributeError, xml.dom.DOMException,
924
1518
xml.parsers.expat.ExpatError) as error:
925
1519
logger.error("Failed to override Introspection method",
926
error)
927
return xmlstring
928
929
930
def datetime_to_dbus (dt, variant_level=0):
1520
exc_info=error)
1521
return xmlstring
1522
1523
1524
try:
1525
dbus.OBJECT_MANAGER_IFACE
1526
except AttributeError:
1527
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1528
1529
1530
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1531
"""A D-Bus object with an ObjectManager.
1532
1533
Classes inheriting from this exposes the standard
1534
GetManagedObjects call and the InterfacesAdded and
1535
InterfacesRemoved signals on the standard
1536
"org.freedesktop.DBus.ObjectManager" interface.
1537
1538
Note: No signals are sent automatically; they must be sent
1539
manually.
1540
"""
1541
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1542
out_signature="a{oa{sa{sv}}}")
1543
def GetManagedObjects(self):
1544
"""This function must be overridden"""
1545
raise NotImplementedError()
1546
1547
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1548
signature="oa{sa{sv}}")
1549
def InterfacesAdded(self, object_path, interfaces_and_properties):
1550
pass
1551
1552
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1553
def InterfacesRemoved(self, object_path, interfaces):
1554
pass
1555
1556
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1557
out_signature="s",
1558
path_keyword='object_path',
1559
connection_keyword='connection')
1560
def Introspect(self, object_path, connection):
1561
"""Overloading of standard D-Bus method.
1562
1563
Override return argument name of GetManagedObjects to be
1564
"objpath_interfaces_and_properties"
1565
"""
1566
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1567
object_path,
1568
connection)
1569
try:
1570
document = xml.dom.minidom.parseString(xmlstring)
1571
1572
for if_tag in document.getElementsByTagName("interface"):
1573
# Fix argument name for the GetManagedObjects method
1574
if (if_tag.getAttribute("name")
1575
== dbus.OBJECT_MANAGER_IFACE):
1576
for cn in if_tag.getElementsByTagName("method"):
1577
if (cn.getAttribute("name")
1578
== "GetManagedObjects"):
1579
for arg in cn.getElementsByTagName("arg"):
1580
if (arg.getAttribute("direction")
1581
== "out"):
1582
arg.setAttribute(
1583
"name",
1584
"objpath_interfaces"
1585
"_and_properties")
1586
xmlstring = document.toxml("utf-8")
1587
document.unlink()
1588
except (AttributeError, xml.dom.DOMException,
1589
xml.parsers.expat.ExpatError) as error:
1590
logger.error("Failed to override Introspection method",
1591
exc_info=error)
1592
return xmlstring
1593
1594
1595
def datetime_to_dbus(dt, variant_level=0):
931
1596
"""Convert a UTC datetime.datetime() to a D-Bus type."""
932
1597
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.
1598
return dbus.String("", variant_level=variant_level)
1599
return dbus.String(dt.isoformat(), variant_level=variant_level)
1600
1601
1602
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1603
"""A class decorator; applied to a subclass of
1604
dbus.service.Object, it will add alternate D-Bus attributes with
1605
interface names according to the "alt_interface_names" mapping.
1606
Usage:
1607
1608
@alternate_dbus_interfaces({"org.example.Interface":
1609
"net.example.AlternateInterface"})
1610
class SampleDBusObject(dbus.service.Object):
1611
@dbus.service.method("org.example.Interface")
1612
def SampleDBusMethod():
1613
pass
1614
1615
The above "SampleDBusMethod" on "SampleDBusObject" will be
1616
reachable via two interfaces: "org.example.Interface" and
1617
"net.example.AlternateInterface", the latter of which will have
1618
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1619
"true", unless "deprecate" is passed with a False value.
1620
1621
This works for methods and signals, and also for D-Bus properties
1622
(from DBusObjectWithProperties) and interfaces (from the
1623
dbus_interface_annotations decorator).
942
1624
"""
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):
1625
1626
def wrapper(cls):
1627
for orig_interface_name, alt_interface_name in (
1628
alt_interface_names.items()):
1629
attr = {}
1630
interface_names = set()
1631
# Go though all attributes of the class
1632
for attrname, attribute in inspect.getmembers(cls):
950
1633
# Ignore non-D-Bus attributes, and D-Bus attributes
951
1634
# with the wrong interface name
952
1635
if (not hasattr(attribute, "_dbus_interface")
953
or not attribute._dbus_interface
954
.startswith("se.recompile.Mandos")):
1636
or not attribute._dbus_interface.startswith(
1637
orig_interface_name)):
955
1638
continue
956
1639
# Create an alternate D-Bus interface name based on
957
1640
# the current name
958
alt_interface = (attribute._dbus_interface
959
.replace("se.recompile.Mandos",
960
"se.bsnet.fukt.Mandos"))
1641
alt_interface = attribute._dbus_interface.replace(
1642
orig_interface_name, alt_interface_name)
1643
interface_names.add(alt_interface)
961
1644
# Is this a D-Bus signal?
962
1645
if getattr(attribute, "_dbus_is_signal", False):
963
# Extract the original non-method function by
964
# black magic
965
nonmethod_func = (dict(
1646
# Extract the original non-method undecorated
1647
# function by black magic
1648
if sys.version_info.major == 2:
1649
nonmethod_func = (dict(
966
1650
zip(attribute.func_code.co_freevars,
967
attribute.__closure__))["func"]
968
.cell_contents)
1651
attribute.__closure__))
1652
["func"].cell_contents)
1653
else:
1654
nonmethod_func = (dict(
1655
zip(attribute.__code__.co_freevars,
1656
attribute.__closure__))
1657
["func"].cell_contents)
969
1658
# Create a new, but exactly alike, function
970
1659
# object, and decorate it to be a new D-Bus signal
971
1660
# 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)))
1661
new_function = copy_function(nonmethod_func)
1662
new_function = (dbus.service.signal(
1663
alt_interface,
1664
attribute._dbus_signature)(new_function))
1665
# Copy annotations, if any
1666
try:
1667
new_function._dbus_annotations = dict(
1668
attribute._dbus_annotations)
1669
except AttributeError:
1670
pass
1671
981
1672
# 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
1673
# original and alternate functions, so both the
1674
# original and alternate signals gets sent when
1675
# the function is called
984
1676
def fixscope(func1, func2):
985
1677
"""This function is a scope container to pass
986
1678
func1 and func2 to the "call_both" function
987
1679
outside of its arguments"""
1680
1681
@functools.wraps(func2)
988
1682
def call_both(*args, **kwargs):
989
1683
"""This function will emit two D-Bus
990
1684
signals by calling func1 and func2"""
991
1685
func1(*args, **kwargs)
992
1686
func2(*args, **kwargs)
1687
# Make wrapper function look like a D-Bus
1688
# signal
1689
for name, attr in inspect.getmembers(func2):
1690
if name.startswith("_dbus_"):
1691
setattr(call_both, name, attr)
1692
993
1693
return call_both
994
1694
# Create the "call_both" function and add it to
995
1695
# the class
996
attr[attrname] = fixscope(attribute,
997
new_function)
1696
attr[attrname] = fixscope(attribute, new_function)
998
1697
# Is this a D-Bus method?
999
1698
elif getattr(attribute, "_dbus_is_method", False):
1000
1699
# Create a new, but exactly alike, function
1001
1700
# object. Decorate it to be a new D-Bus method
1002
1701
# with the alternate D-Bus interface name. Add it
1003
1702
# 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)))
1703
attr[attrname] = (
1704
dbus.service.method(
1705
alt_interface,
1706
attribute._dbus_in_signature,
1707
attribute._dbus_out_signature)
1708
(copy_function(attribute)))
1709
# Copy annotations, if any
1710
try:
1711
attr[attrname]._dbus_annotations = dict(
1712
attribute._dbus_annotations)
1713
except AttributeError:
1714
pass
1014
1715
# Is this a D-Bus property?
1015
1716
elif getattr(attribute, "_dbus_is_property", False):
1016
1717
# Create a new, but exactly alike, function
1017
1718
# object, and decorate it to be a new D-Bus
1018
1719
# property with the alternate D-Bus interface
1019
1720
# 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
1721
attr[attrname] = (dbus_service_property(
1722
alt_interface, attribute._dbus_signature,
1723
attribute._dbus_access,
1724
attribute._dbus_get_args_options
1725
["byte_arrays"])
1726
(copy_function(attribute)))
1727
# Copy annotations, if any
1728
try:
1729
attr[attrname]._dbus_annotations = dict(
1730
attribute._dbus_annotations)
1731
except AttributeError:
1732
pass
1733
# Is this a D-Bus interface?
1734
elif getattr(attribute, "_dbus_is_interface", False):
1735
# Create a new, but exactly alike, function
1736
# object. Decorate it to be a new D-Bus interface
1737
# with the alternate D-Bus interface name. Add it
1738
# to the class.
1739
attr[attrname] = (
1740
dbus_interface_annotations(alt_interface)
1741
(copy_function(attribute)))
1742
if deprecate:
1743
# Deprecate all alternate interfaces
1744
iname = "_AlternateDBusNames_interface_annotation{}"
1745
for interface_name in interface_names:
1746
1747
@dbus_interface_annotations(interface_name)
1748
def func(self):
1749
return {"org.freedesktop.DBus.Deprecated":
1750
"true"}
1751
# Find an unused name
1752
for aname in (iname.format(i)
1753
for i in itertools.count()):
1754
if aname not in attr:
1755
attr[aname] = func
1756
break
1757
if interface_names:
1758
# Replace the class with a new subclass of it with
1759
# methods, signals, etc. as created above.
1760
if sys.version_info.major == 2:
1761
cls = type(b"{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
else:
1764
cls = type("{}Alternate".format(cls.__name__),
1765
(cls, ), attr)
1766
return cls
1767
1768
return wrapper
1769
1770
1771
@alternate_dbus_interfaces({"se.recompile.Mandos":
1772
"se.bsnet.fukt.Mandos"})
1036
1773
class ClientDBus(Client, DBusObjectWithProperties):
1037
1774
"""A Client class using D-Bus
1038
1775
1039
1776
Attributes:
1040
1777
dbus_object_path: dbus.ObjectPath
1041
1778
bus: dbus.SystemBus()
1042
1779
"""
1043
1780
1044
1781
runtime_expansions = (Client.runtime_expansions
1045
+ ("dbus_object_path",))
1046
1782
+ ("dbus_object_path", ))
1783
1784
_interface = "se.recompile.Mandos.Client"
1785
1047
1786
# dbus.service.Object doesn't use super(), so we can't either.
1048
1049
def __init__(self, bus = None, *args, **kwargs):
1787
1788
def __init__(self, bus=None, *args, **kwargs):
1050
1789
self.bus = bus
1051
1790
Client.__init__(self, *args, **kwargs)
1052
self._approvals_pending = 0
1053
1054
self._approvals_pending = 0
1055
1791
# Only now, when this client is initialized, can it show up on
1056
1792
# the D-Bus
1057
client_object_name = unicode(self.name).translate(
1793
client_object_name = str(self.name).translate(
1058
1794
{ord("."): ord("_"),
1059
1795
ord("-"): ord("_")})
1060
self.dbus_object_path = (dbus.ObjectPath
1061
("/clients/" + client_object_name))
1796
self.dbus_object_path = dbus.ObjectPath(
1797
"/clients/" + client_object_name)
1062
1798
DBusObjectWithProperties.__init__(self, self.bus,
1063
1799
self.dbus_object_path)
1064
1065
def notifychangeproperty(transform_func,
1066
dbus_name, type_func=lambda x: x,
1067
variant_level=1):
1800
1801
def notifychangeproperty(transform_func, dbus_name,
1802
type_func=lambda x: x,
1803
variant_level=1,
1804
invalidate_only=False,
1805
_interface=_interface):
1068
1806
""" Modify a variable so that it's a property which announces
1069
1807
its changes to DBus.
1070
1808
1071
1809
transform_fun: Function that takes a value and a variant_level
1072
1810
and transforms it to a D-Bus type.
1073
1811
dbus_name: D-Bus name of the variable
1075
1813
to the D-Bus. Default: no transform
1076
1814
variant_level: D-Bus variant level. Default: 1
1077
1815
"""
1078
attrname = "_{0}".format(dbus_name)
1816
attrname = "_{}".format(dbus_name)
1817
1079
1818
def setter(self, value):
1080
1819
if hasattr(self, "dbus_object_path"):
1081
1820
if (not hasattr(self, attrname) or
1082
1821
type_func(getattr(self, attrname, None))
1083
1822
!= 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)
1823
if invalidate_only:
1824
self.PropertiesChanged(
1825
_interface, dbus.Dictionary(),
1826
dbus.Array((dbus_name, )))
1827
else:
1828
dbus_value = transform_func(
1829
type_func(value),
1830
variant_level=variant_level)
1831
self.PropertyChanged(dbus.String(dbus_name),
1832
dbus_value)
1833
self.PropertiesChanged(
1834
_interface,
1835
dbus.Dictionary({dbus.String(dbus_name):
1836
dbus_value}),
1837
dbus.Array())
1089
1838
setattr(self, attrname, value)
1090
1839
1091
1840
return property(lambda self: getattr(self, attrname), setter)
1092
1093
1841
1094
1842
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1095
1843
approvals_pending = notifychangeproperty(dbus.Boolean,
1096
1844
"ApprovalPending",
1097
type_func = bool)
1845
type_func=bool)
1098
1846
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1099
1847
last_enabled = notifychangeproperty(datetime_to_dbus,
1100
1848
"LastEnabled")
1101
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1102
type_func = lambda checker:
1103
checker is not None)
1849
checker = notifychangeproperty(
1850
dbus.Boolean, "CheckerRunning",
1851
type_func=lambda checker: checker is not None)
1104
1852
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1105
1853
"LastCheckedOK")
1854
last_checker_status = notifychangeproperty(dbus.Int16,
1855
"LastCheckerStatus")
1106
1856
last_approval_request = notifychangeproperty(
1107
1857
datetime_to_dbus, "LastApprovalRequest")
1108
1858
approved_by_default = notifychangeproperty(dbus.Boolean,
1109
1859
"ApprovedByDefault")
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1111
"ApprovalDelay",
1112
type_func =
1113
timedelta_to_milliseconds)
1860
approval_delay = notifychangeproperty(
1861
dbus.UInt64, "ApprovalDelay",
1862
type_func=lambda td: td.total_seconds() * 1000)
1114
1863
approval_duration = notifychangeproperty(
1115
1864
dbus.UInt64, "ApprovalDuration",
1116
type_func = timedelta_to_milliseconds)
1865
type_func=lambda td: td.total_seconds() * 1000)
1117
1866
host = notifychangeproperty(dbus.String, "Host")
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
type_func =
1120
timedelta_to_milliseconds)
1867
timeout = notifychangeproperty(
1868
dbus.UInt64, "Timeout",
1869
type_func=lambda td: td.total_seconds() * 1000)
1121
1870
extended_timeout = notifychangeproperty(
1122
1871
dbus.UInt64, "ExtendedTimeout",
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1125
"Interval",
1126
type_func =
1127
timedelta_to_milliseconds)
1872
type_func=lambda td: td.total_seconds() * 1000)
1873
interval = notifychangeproperty(
1874
dbus.UInt64, "Interval",
1875
type_func=lambda td: td.total_seconds() * 1000)
1128
1876
checker_command = notifychangeproperty(dbus.String, "Checker")
1129
1877
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1878
invalidate_only=True)
1879
1130
1880
del notifychangeproperty
1131
1881
1132
1882
def __del__(self, *args, **kwargs):
1133
1883
try:
1134
1884
self.remove_from_connection()
1137
1887
if hasattr(DBusObjectWithProperties, "__del__"):
1138
1888
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1139
1889
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)
1890
1891
def checker_callback(self, source, condition,
1892
connection, command, *args, **kwargs):
1893
ret = Client.checker_callback(self, source, condition,
1894
connection, command, *args,
1895
**kwargs)
1896
exitstatus = self.last_checker_status
1897
if exitstatus >= 0:
1147
1898
# Emit D-Bus signal
1148
1899
self.CheckerCompleted(dbus.Int16(exitstatus),
1149
dbus.Int64(condition),
1900
# This is specific to GNU libC
1901
dbus.Int64(exitstatus << 8),
1150
1902
dbus.String(command))
1151
1903
else:
1152
1904
# Emit D-Bus signal
1153
1905
self.CheckerCompleted(dbus.Int16(-1),
1154
dbus.Int64(condition),
1906
dbus.Int64(
1907
# This is specific to GNU libC
1908
(exitstatus << 8)
1909
| self.last_checker_signal),
1155
1910
dbus.String(command))
1156
1157
return Client.checker_callback(self, pid, condition, command,
1158
*args, **kwargs)
1159
1911
return ret
1912
1160
1913
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
1914
old_checker_pid = getattr(self.checker, "pid", None)
1166
1915
r = Client.start_checker(self, *args, **kwargs)
1167
1916
# Only if new checker process was started
1168
1917
if (self.checker is not None
1170
1919
# Emit D-Bus signal
1171
1920
self.CheckerStarted(self.current_checker_command)
1172
1921
return r
1173
1922
1174
1923
def _reset_approved(self):
1175
1924
self.approved = None
1176
1925
return False
1177
1926
1178
1927
def approve(self, value=True):
1179
self.send_changedstate()
1180
1928
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
1929
GLib.timeout_add(int(self.approval_duration.total_seconds()
1930
* 1000), self._reset_approved)
1931
self.send_changedstate()
1932
1933
# D-Bus methods, signals & properties
1934
1935
# Interfaces
1936
1937
# Signals
1938
1191
1939
# CheckerCompleted - signal
1192
1940
@dbus.service.signal(_interface, signature="nxs")
1193
1941
def CheckerCompleted(self, exitcode, waitstatus, command):
1194
1942
"D-Bus signal"
1195
1943
pass
1196
1944
1197
1945
# CheckerStarted - signal
1198
1946
@dbus.service.signal(_interface, signature="s")
1199
1947
def CheckerStarted(self, command):
1200
1948
"D-Bus signal"
1201
1949
pass
1202
1950
1203
1951
# PropertyChanged - signal
1952
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1204
1953
@dbus.service.signal(_interface, signature="sv")
1205
1954
def PropertyChanged(self, property, value):
1206
1955
"D-Bus signal"
1207
1956
pass
1208
1957
1209
1958
# GotSecret - signal
1210
1959
@dbus.service.signal(_interface)
1211
1960
def GotSecret(self):
1214
1963
server to mandos-client
1215
1964
"""
1216
1965
pass
1217
1966
1218
1967
# Rejected - signal
1219
1968
@dbus.service.signal(_interface, signature="s")
1220
1969
def Rejected(self, reason):
1221
1970
"D-Bus signal"
1222
1971
pass
1223
1972
1224
1973
# NeedApproval - signal
1225
1974
@dbus.service.signal(_interface, signature="tb")
1226
1975
def NeedApproval(self, timeout, default):
1227
1976
"D-Bus signal"
1228
1977
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
1978
1979
# Methods
1980
1240
1981
# Approve - method
1241
1982
@dbus.service.method(_interface, in_signature="b")
1242
1983
def Approve(self, value):
1243
1984
self.approve(value)
1244
1985
1245
1986
# CheckedOK - method
1246
1987
@dbus.service.method(_interface)
1247
1988
def CheckedOK(self):
1248
1989
self.checked_ok()
1249
1990
1250
1991
# Enable - method
1992
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1251
1993
@dbus.service.method(_interface)
1252
1994
def Enable(self):
1253
1995
"D-Bus method"
1254
1996
self.enable()
1255
1997
1256
1998
# StartChecker - method
1999
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1257
2000
@dbus.service.method(_interface)
1258
2001
def StartChecker(self):
1259
2002
"D-Bus method"
1260
2003
self.start_checker()
1261
2004
1262
2005
# Disable - method
2006
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1263
2007
@dbus.service.method(_interface)
1264
2008
def Disable(self):
1265
2009
"D-Bus method"
1266
2010
self.disable()
1267
2011
1268
2012
# StopChecker - method
2013
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1269
2014
@dbus.service.method(_interface)
1270
2015
def StopChecker(self):
1271
2016
self.stop_checker()
1272
1273
## Properties
1274
2017
2018
# Properties
2019
1275
2020
# ApprovalPending - property
1276
2021
@dbus_service_property(_interface, signature="b", access="read")
1277
2022
def ApprovalPending_dbus_property(self):
1278
2023
return dbus.Boolean(bool(self.approvals_pending))
1279
2024
1280
2025
# ApprovedByDefault - property
1281
@dbus_service_property(_interface, signature="b",
2026
@dbus_service_property(_interface,
2027
signature="b",
1282
2028
access="readwrite")
1283
2029
def ApprovedByDefault_dbus_property(self, value=None):
1284
2030
if value is None: # get
1285
2031
return dbus.Boolean(self.approved_by_default)
1286
2032
self.approved_by_default = bool(value)
1287
2033
1288
2034
# ApprovalDelay - property
1289
@dbus_service_property(_interface, signature="t",
2035
@dbus_service_property(_interface,
2036
signature="t",
1290
2037
access="readwrite")
1291
2038
def ApprovalDelay_dbus_property(self, value=None):
1292
2039
if value is None: # get
1293
return dbus.UInt64(self.approval_delay_milliseconds())
2040
return dbus.UInt64(self.approval_delay.total_seconds()
2041
* 1000)
1294
2042
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1295
2043
1296
2044
# ApprovalDuration - property
1297
@dbus_service_property(_interface, signature="t",
2045
@dbus_service_property(_interface,
2046
signature="t",
1298
2047
access="readwrite")
1299
2048
def ApprovalDuration_dbus_property(self, value=None):
1300
2049
if value is None: # get
1301
return dbus.UInt64(timedelta_to_milliseconds(
1302
self.approval_duration))
2050
return dbus.UInt64(self.approval_duration.total_seconds()
2051
* 1000)
1303
2052
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1304
2053
1305
2054
# Name - property
2055
@dbus_annotations(
2056
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1306
2057
@dbus_service_property(_interface, signature="s", access="read")
1307
2058
def Name_dbus_property(self):
1308
2059
return dbus.String(self.name)
1309
2060
2061
# KeyID - property
2062
@dbus_annotations(
2063
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2064
@dbus_service_property(_interface, signature="s", access="read")
2065
def KeyID_dbus_property(self):
2066
return dbus.String(self.key_id)
2067
1310
2068
# Fingerprint - property
2069
@dbus_annotations(
2070
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1311
2071
@dbus_service_property(_interface, signature="s", access="read")
1312
2072
def Fingerprint_dbus_property(self):
1313
2073
return dbus.String(self.fingerprint)
1314
2074
1315
2075
# Host - property
1316
@dbus_service_property(_interface, signature="s",
2076
@dbus_service_property(_interface,
2077
signature="s",
1317
2078
access="readwrite")
1318
2079
def Host_dbus_property(self, value=None):
1319
2080
if value is None: # get
1320
2081
return dbus.String(self.host)
1321
self.host = unicode(value)
1322
2082
self.host = str(value)
2083
1323
2084
# Created - property
2085
@dbus_annotations(
2086
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1324
2087
@dbus_service_property(_interface, signature="s", access="read")
1325
2088
def Created_dbus_property(self):
1326
2089
return datetime_to_dbus(self.created)
1327
2090
1328
2091
# LastEnabled - property
1329
2092
@dbus_service_property(_interface, signature="s", access="read")
1330
2093
def LastEnabled_dbus_property(self):
1331
2094
return datetime_to_dbus(self.last_enabled)
1332
2095
1333
2096
# Enabled - property
1334
@dbus_service_property(_interface, signature="b",
2097
@dbus_service_property(_interface,
2098
signature="b",
1335
2099
access="readwrite")
1336
2100
def Enabled_dbus_property(self, value=None):
1337
2101
if value is None: # get
1340
2104
self.enable()
1341
2105
else:
1342
2106
self.disable()
1343
2107
1344
2108
# LastCheckedOK - property
1345
@dbus_service_property(_interface, signature="s",
2109
@dbus_service_property(_interface,
2110
signature="s",
1346
2111
access="readwrite")
1347
2112
def LastCheckedOK_dbus_property(self, value=None):
1348
2113
if value is not None:
1349
2114
self.checked_ok()
1350
2115
return
1351
2116
return datetime_to_dbus(self.last_checked_ok)
1352
2117
2118
# LastCheckerStatus - property
2119
@dbus_service_property(_interface, signature="n", access="read")
2120
def LastCheckerStatus_dbus_property(self):
2121
return dbus.Int16(self.last_checker_status)
2122
1353
2123
# Expires - property
1354
2124
@dbus_service_property(_interface, signature="s", access="read")
1355
2125
def Expires_dbus_property(self):
1356
2126
return datetime_to_dbus(self.expires)
1357
2127
1358
2128
# LastApprovalRequest - property
1359
2129
@dbus_service_property(_interface, signature="s", access="read")
1360
2130
def LastApprovalRequest_dbus_property(self):
1361
2131
return datetime_to_dbus(self.last_approval_request)
1362
2132
1363
2133
# Timeout - property
1364
@dbus_service_property(_interface, signature="t",
2134
@dbus_service_property(_interface,
2135
signature="t",
1365
2136
access="readwrite")
1366
2137
def Timeout_dbus_property(self, value=None):
1367
2138
if value is None: # get
1368
return dbus.UInt64(self.timeout_milliseconds())
2139
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2140
old_timeout = self.timeout
1369
2141
self.timeout = datetime.timedelta(0, 0, 0, value)
1370
# Reschedule timeout
2142
# Reschedule disabling
1371
2143
if self.enabled:
1372
2144
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:
2145
self.expires += self.timeout - old_timeout
2146
if self.expires <= now:
1376
2147
# The timeout has passed
1377
2148
self.disable()
1378
2149
else:
1379
self.expires = (now +
1380
datetime.timedelta(milliseconds =
1381
time_to_die))
1382
2150
if (getattr(self, "disable_initiator_tag", None)
1383
2151
is None):
1384
2152
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
2153
GLib.source_remove(self.disable_initiator_tag)
2154
self.disable_initiator_tag = GLib.timeout_add(
2155
int((self.expires - now).total_seconds() * 1000),
2156
self.disable)
2157
1390
2158
# ExtendedTimeout - property
1391
@dbus_service_property(_interface, signature="t",
2159
@dbus_service_property(_interface,
2160
signature="t",
1392
2161
access="readwrite")
1393
2162
def ExtendedTimeout_dbus_property(self, value=None):
1394
2163
if value is None: # get
1395
return dbus.UInt64(self.extended_timeout_milliseconds())
2164
return dbus.UInt64(self.extended_timeout.total_seconds()
2165
* 1000)
1396
2166
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1397
2167
1398
2168
# Interval - property
1399
@dbus_service_property(_interface, signature="t",
2169
@dbus_service_property(_interface,
2170
signature="t",
1400
2171
access="readwrite")
1401
2172
def Interval_dbus_property(self, value=None):
1402
2173
if value is None: # get
1403
return dbus.UInt64(self.interval_milliseconds())
2174
return dbus.UInt64(self.interval.total_seconds() * 1000)
1404
2175
self.interval = datetime.timedelta(0, 0, 0, value)
1405
2176
if getattr(self, "checker_initiator_tag", None) is None:
1406
2177
return
1407
2178
if self.enabled:
1408
2179
# 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
2180
GLib.source_remove(self.checker_initiator_tag)
2181
self.checker_initiator_tag = GLib.timeout_add(
2182
value, self.start_checker)
2183
self.start_checker() # Start one now, too
2184
1414
2185
# Checker - property
1415
@dbus_service_property(_interface, signature="s",
2186
@dbus_service_property(_interface,
2187
signature="s",
1416
2188
access="readwrite")
1417
2189
def Checker_dbus_property(self, value=None):
1418
2190
if value is None: # get
1419
2191
return dbus.String(self.checker_command)
1420
self.checker_command = unicode(value)
1421
2192
self.checker_command = str(value)
2193
1422
2194
# CheckerRunning - property
1423
@dbus_service_property(_interface, signature="b",
2195
@dbus_service_property(_interface,
2196
signature="b",
1424
2197
access="readwrite")
1425
2198
def CheckerRunning_dbus_property(self, value=None):
1426
2199
if value is None: # get
1429
2202
self.start_checker()
1430
2203
else:
1431
2204
self.stop_checker()
1432
2205
1433
2206
# ObjectPath - property
2207
@dbus_annotations(
2208
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2209
"org.freedesktop.DBus.Deprecated": "true"})
1434
2210
@dbus_service_property(_interface, signature="o", access="read")
1435
2211
def ObjectPath_dbus_property(self):
1436
return self.dbus_object_path # is already a dbus.ObjectPath
1437
2212
return self.dbus_object_path # is already a dbus.ObjectPath
2213
1438
2214
# Secret = property
1439
@dbus_service_property(_interface, signature="ay",
1440
access="write", byte_arrays=True)
2215
@dbus_annotations(
2216
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2217
"invalidates"})
2218
@dbus_service_property(_interface,
2219
signature="ay",
2220
access="write",
2221
byte_arrays=True)
1441
2222
def Secret_dbus_property(self, value):
1442
self.secret = str(value)
1443
2223
self.secret = bytes(value)
2224
1444
2225
del _interface
1445
2226
1446
2227
1447
class ProxyClient(object):
1448
def __init__(self, child_pipe, fpr, address):
2228
class ProxyClient:
2229
def __init__(self, child_pipe, key_id, fpr, address):
1449
2230
self._pipe = child_pipe
1450
self._pipe.send(('init', fpr, address))
2231
self._pipe.send(('init', key_id, fpr, address))
1451
2232
if not self._pipe.recv():
1452
raise KeyError()
1453
2233
raise KeyError(key_id or fpr)
2234
1454
2235
def __getattribute__(self, name):
1455
2236
if name == '_pipe':
1456
2237
return super(ProxyClient, self).__getattribute__(name)
1459
2240
if data[0] == 'data':
1460
2241
return data[1]
1461
2242
if data[0] == 'function':
2243
1462
2244
def func(*args, **kwargs):
1463
2245
self._pipe.send(('funcall', name, args, kwargs))
1464
2246
return self._pipe.recv()[1]
2247
1465
2248
return func
1466
2249
1467
2250
def __setattr__(self, name, value):
1468
2251
if name == '_pipe':
1469
2252
return super(ProxyClient, self).__setattr__(name, value)
1470
2253
self._pipe.send(('setattr', name, value))
1471
2254
1472
2255
1473
class ClientDBusTransitional(ClientDBus):
1474
__metaclass__ = AlternateDBusNamesMetaclass
1475
1476
1477
2256
class ClientHandler(socketserver.BaseRequestHandler, object):
1478
2257
"""A class to handle client connections.
1479
2258
1480
2259
Instantiated once for each connection to handle it.
1481
2260
Note: This will run in its own forked process."""
1482
2261
1483
2262
def handle(self):
1484
2263
with contextlib.closing(self.server.child_pipe) as child_pipe:
1485
2264
logger.info("TCP connection from: %s",
1486
unicode(self.client_address))
2265
str(self.client_address))
1487
2266
logger.debug("Pipe FD: %d",
1488
2267
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"))
2268
2269
session = gnutls.ClientSession(self.request)
2270
2271
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2272
# "+AES-256-CBC", "+SHA1",
2273
# "+COMP-NULL", "+CTYPE-OPENPGP",
2274
# "+DHE-DSS"))
1504
2275
# Use a fallback default, since this MUST be set.
1505
2276
priority = self.server.gnutls_priority
1506
2277
if priority is None:
1507
2278
priority = "NORMAL"
1508
(gnutls.library.functions
1509
.gnutls_priority_set_direct(session._c_object,
1510
priority, None))
1511
2279
gnutls.priority_set_direct(session._c_object,
2280
priority.encode("utf-8"),
2281
None)
2282
1512
2283
# Start communication using the Mandos protocol
1513
2284
# Get protocol number
1514
2285
line = self.request.makefile().readline()
1515
2286
logger.debug("Protocol version: %r", line)
1516
2287
try:
1517
2288
if int(line.strip().split()[0]) > 1:
1518
raise RuntimeError
2289
raise RuntimeError(line)
1519
2290
except (ValueError, IndexError, RuntimeError) as error:
1520
2291
logger.error("Unknown protocol version: %s", error)
1521
2292
return
1522
2293
1523
2294
# Start GnuTLS connection
1524
2295
try:
1525
2296
session.handshake()
1526
except gnutls.errors.GNUTLSError as error:
2297
except gnutls.Error as error:
1527
2298
logger.warning("Handshake failed: %s", error)
1528
2299
# Do not run session.bye() here: the session is not
1529
2300
# established. Just abandon the request.
1530
2301
return
1531
2302
logger.debug("Handshake succeeded")
1532
2303
1533
2304
approval_required = False
1534
2305
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,
2306
if gnutls.has_rawpk:
2307
fpr = b""
2308
try:
2309
key_id = self.key_id(
2310
self.peer_certificate(session))
2311
except (TypeError, gnutls.Error) as error:
2312
logger.warning("Bad certificate: %s", error)
2313
return
2314
logger.debug("Key ID: %s", key_id)
2315
2316
else:
2317
key_id = b""
2318
try:
2319
fpr = self.fingerprint(
2320
self.peer_certificate(session))
2321
except (TypeError, gnutls.Error) as error:
2322
logger.warning("Bad certificate: %s", error)
2323
return
2324
logger.debug("Fingerprint: %s", fpr)
2325
2326
try:
2327
client = ProxyClient(child_pipe, key_id, fpr,
1546
2328
self.client_address)
1547
2329
except KeyError:
1548
2330
return
1549
1550
if self.server.use_dbus:
1551
# Emit D-Bus signal
1552
client.NewRequest(str(self.client_address))
1553
2331
1554
2332
if client.approval_delay:
1555
2333
delay = client.approval_delay
1556
2334
client.approvals_pending += 1
1557
2335
approval_required = True
1558
2336
1559
2337
while True:
1560
2338
if not client.enabled:
1561
2339
logger.info("Client %s is disabled",
1562
client.name)
2340
client.name)
1563
2341
if self.server.use_dbus:
1564
2342
# Emit D-Bus signal
1565
2343
client.Rejected("Disabled")
1566
2344
return
1567
2345
1568
2346
if client.approved or not client.approval_delay:
1569
#We are approved or approval is disabled
2347
# We are approved or approval is disabled
1570
2348
break
1571
2349
elif client.approved is None:
1572
2350
logger.info("Client %s needs approval",
1574
2352
if self.server.use_dbus:
1575
2353
# Emit D-Bus signal
1576
2354
client.NeedApproval(
1577
client.approval_delay_milliseconds(),
1578
client.approved_by_default)
2355
client.approval_delay.total_seconds()
2356
* 1000, client.approved_by_default)
1579
2357
else:
1580
2358
logger.warning("Client %s was not approved",
1581
2359
client.name)
1583
2361
# Emit D-Bus signal
1584
2362
client.Rejected("Denied")
1585
2363
return
1586
1587
#wait until timeout or approved
2364
2365
# wait until timeout or approved
1588
2366
time = datetime.datetime.now()
1589
2367
client.changedstate.acquire()
1590
(client.changedstate.wait
1591
(float(client.timedelta_to_milliseconds(delay)
1592
/ 1000)))
2368
client.changedstate.wait(delay.total_seconds())
1593
2369
client.changedstate.release()
1594
2370
time2 = datetime.datetime.now()
1595
2371
if (time2 - time) >= delay:
1605
2381
break
1606
2382
else:
1607
2383
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
2384
2385
try:
2386
session.send(client.secret)
2387
except gnutls.Error as error:
2388
logger.warning("gnutls send failed",
2389
exc_info=error)
2390
return
2391
1621
2392
logger.info("Sending secret to %s", client.name)
1622
2393
# bump the timeout using extended_timeout
1623
client.checked_ok(client.extended_timeout)
2394
client.bump_timeout(client.extended_timeout)
1624
2395
if self.server.use_dbus:
1625
2396
# Emit D-Bus signal
1626
2397
client.GotSecret()
1627
2398
1628
2399
finally:
1629
2400
if approval_required:
1630
2401
client.approvals_pending -= 1
1631
2402
try:
1632
2403
session.bye()
1633
except gnutls.errors.GNUTLSError as error:
1634
logger.warning("GnuTLS bye failed")
1635
2404
except gnutls.Error as error:
2405
logger.warning("GnuTLS bye failed",
2406
exc_info=error)
2407
1636
2408
@staticmethod
1637
2409
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
2410
"Return the peer's certificate as a bytestring"
2411
try:
2412
cert_type = gnutls.certificate_type_get2(session._c_object,
2413
gnutls.CTYPE_PEERS)
2414
except AttributeError:
2415
cert_type = gnutls.certificate_type_get(session._c_object)
2416
if gnutls.has_rawpk:
2417
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2418
else:
2419
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2420
# If not a valid certificate type...
2421
if cert_type not in valid_cert_types:
2422
logger.info("Cert type %r not in %r", cert_type,
2423
valid_cert_types)
2424
# ...return invalid data
2425
return b""
1645
2426
list_size = ctypes.c_uint(1)
1646
cert_list = (gnutls.library.functions
1647
.gnutls_certificate_get_peers
2427
cert_list = (gnutls.certificate_get_peers
1648
2428
(session._c_object, ctypes.byref(list_size)))
1649
2429
if not bool(cert_list) and list_size.value != 0:
1650
raise gnutls.errors.GNUTLSError("error getting peer"
1651
" certificate")
2430
raise gnutls.Error("error getting peer certificate")
1652
2431
if list_size.value == 0:
1653
2432
return None
1654
2433
cert = cert_list[0]
1655
2434
return ctypes.string_at(cert.data, cert.size)
1656
2435
2436
@staticmethod
2437
def key_id(certificate):
2438
"Convert a certificate bytestring to a hexdigit key ID"
2439
# New GnuTLS "datum" with the public key
2440
datum = gnutls.datum_t(
2441
ctypes.cast(ctypes.c_char_p(certificate),
2442
ctypes.POINTER(ctypes.c_ubyte)),
2443
ctypes.c_uint(len(certificate)))
2444
# XXX all these need to be created in the gnutls "module"
2445
# New empty GnuTLS certificate
2446
pubkey = gnutls.pubkey_t()
2447
gnutls.pubkey_init(ctypes.byref(pubkey))
2448
# Import the raw public key into the certificate
2449
gnutls.pubkey_import(pubkey,
2450
ctypes.byref(datum),
2451
gnutls.X509_FMT_DER)
2452
# New buffer for the key ID
2453
buf = ctypes.create_string_buffer(32)
2454
buf_len = ctypes.c_size_t(len(buf))
2455
# Get the key ID from the raw public key into the buffer
2456
gnutls.pubkey_get_key_id(pubkey,
2457
gnutls.KEYID_USE_SHA256,
2458
ctypes.cast(ctypes.byref(buf),
2459
ctypes.POINTER(ctypes.c_ubyte)),
2460
ctypes.byref(buf_len))
2461
# Deinit the certificate
2462
gnutls.pubkey_deinit(pubkey)
2463
2464
# Convert the buffer to a Python bytestring
2465
key_id = ctypes.string_at(buf, buf_len.value)
2466
# Convert the bytestring to hexadecimal notation
2467
hex_key_id = binascii.hexlify(key_id).upper()
2468
return hex_key_id
2469
1657
2470
@staticmethod
1658
2471
def fingerprint(openpgp):
1659
2472
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1660
2473
# 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))))
2474
datum = gnutls.datum_t(
2475
ctypes.cast(ctypes.c_char_p(openpgp),
2476
ctypes.POINTER(ctypes.c_ubyte)),
2477
ctypes.c_uint(len(openpgp)))
1666
2478
# 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)))
2479
crt = gnutls.openpgp_crt_t()
2480
gnutls.openpgp_crt_init(ctypes.byref(crt))
1670
2481
# 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))
2482
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2483
gnutls.OPENPGP_FMT_RAW)
1675
2484
# Verify the self signature in the key
1676
2485
crtverify = ctypes.c_uint()
1677
(gnutls.library.functions
1678
.gnutls_openpgp_crt_verify_self(crt, 0,
1679
ctypes.byref(crtverify)))
2486
gnutls.openpgp_crt_verify_self(crt, 0,
2487
ctypes.byref(crtverify))
1680
2488
if crtverify.value != 0:
1681
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1682
raise (gnutls.errors.CertificateSecurityError
1683
("Verify failed"))
2489
gnutls.openpgp_crt_deinit(crt)
2490
raise gnutls.CertificateSecurityError(code
2491
=crtverify.value)
1684
2492
# New buffer for the fingerprint
1685
2493
buf = ctypes.create_string_buffer(20)
1686
2494
buf_len = ctypes.c_size_t()
1687
2495
# 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)))
2496
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2497
ctypes.byref(buf_len))
1691
2498
# Deinit the certificate
1692
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2499
gnutls.openpgp_crt_deinit(crt)
1693
2500
# Convert the buffer to a Python bytestring
1694
2501
fpr = ctypes.string_at(buf, buf_len.value)
1695
2502
# Convert the bytestring to hexadecimal notation
1697
2504
return hex_fpr
1698
2505
1699
2506
1700
class MultiprocessingMixIn(object):
2507
class MultiprocessingMixIn:
1701
2508
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2509
1702
2510
def sub_process_main(self, request, address):
1703
2511
try:
1704
2512
self.finish_request(request, address)
1705
2513
except Exception:
1706
2514
self.handle_error(request, address)
1707
2515
self.close_request(request)
1708
2516
1709
2517
def process_request(self, request, address):
1710
2518
"""Start a new process to process the request."""
1711
proc = multiprocessing.Process(target = self.sub_process_main,
1712
args = (request,
1713
address))
2519
proc = multiprocessing.Process(target=self.sub_process_main,
2520
args=(request, address))
1714
2521
proc.start()
1715
2522
return proc
1716
2523
1717
2524
1718
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2525
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1719
2526
""" adds a pipe to the MixIn """
2527
1720
2528
def process_request(self, request, client_address):
1721
2529
"""Overrides and wraps the original process_request().
1722
2530
1723
2531
This function creates a new pipe in self.pipe
1724
2532
"""
1725
2533
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1726
2534
1727
2535
proc = MultiprocessingMixIn.process_request(self, request,
1728
2536
client_address)
1729
2537
self.child_pipe.close()
1730
2538
self.add_pipe(parent_pipe, proc)
1731
2539
1732
2540
def add_pipe(self, parent_pipe, proc):
1733
2541
"""Dummy function; override as necessary"""
1734
raise NotImplementedError
2542
raise NotImplementedError()
1735
2543
1736
2544
1737
2545
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1738
socketserver.TCPServer, object):
2546
socketserver.TCPServer):
1739
2547
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1740
2548
1741
2549
Attributes:
1742
2550
enabled: Boolean; whether this server is activated yet
1743
2551
interface: None or a network interface name (string)
1744
2552
use_ipv6: Boolean; to use IPv6 or not
1745
2553
"""
2554
1746
2555
def __init__(self, server_address, RequestHandlerClass,
1747
interface=None, use_ipv6=True):
2556
interface=None,
2557
use_ipv6=True,
2558
socketfd=None):
2559
"""If socketfd is set, use that file descriptor instead of
2560
creating a new one with socket.socket().
2561
"""
1748
2562
self.interface = interface
1749
2563
if use_ipv6:
1750
2564
self.address_family = socket.AF_INET6
2565
if socketfd is not None:
2566
# Save the file descriptor
2567
self.socketfd = socketfd
2568
# Save the original socket.socket() function
2569
self.socket_socket = socket.socket
2570
2571
# To implement --socket, we monkey patch socket.socket.
2572
#
2573
# (When socketserver.TCPServer is a new-style class, we
2574
# could make self.socket into a property instead of monkey
2575
# patching socket.socket.)
2576
#
2577
# Create a one-time-only replacement for socket.socket()
2578
@functools.wraps(socket.socket)
2579
def socket_wrapper(*args, **kwargs):
2580
# Restore original function so subsequent calls are
2581
# not affected.
2582
socket.socket = self.socket_socket
2583
del self.socket_socket
2584
# This time only, return a new socket object from the
2585
# saved file descriptor.
2586
return socket.fromfd(self.socketfd, *args, **kwargs)
2587
# Replace socket.socket() function with wrapper
2588
socket.socket = socket_wrapper
2589
# The socketserver.TCPServer.__init__ will call
2590
# socket.socket(), which might be our replacement,
2591
# socket_wrapper(), if socketfd was set.
1751
2592
socketserver.TCPServer.__init__(self, server_address,
1752
2593
RequestHandlerClass)
2594
1753
2595
def server_bind(self):
1754
2596
"""This overrides the normal server_bind() function
1755
2597
to bind to an interface if one was specified, and also NOT to
1756
2598
bind to an address or port if they were not specified."""
2599
global SO_BINDTODEVICE
1757
2600
if self.interface is not None:
1758
2601
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
2602
# Fall back to a hard-coded value which seems to be
2603
# common enough.
2604
logger.warning("SO_BINDTODEVICE not found, trying 25")
2605
SO_BINDTODEVICE = 25
2606
try:
2607
self.socket.setsockopt(
2608
socket.SOL_SOCKET, SO_BINDTODEVICE,
2609
(self.interface + "\0").encode("utf-8"))
2610
except socket.error as error:
2611
if error.errno == errno.EPERM:
2612
logger.error("No permission to bind to"
2613
" interface %s", self.interface)
2614
elif error.errno == errno.ENOPROTOOPT:
2615
logger.error("SO_BINDTODEVICE not available;"
2616
" cannot bind to interface %s",
2617
self.interface)
2618
elif error.errno == errno.ENODEV:
2619
logger.error("Interface %s does not exist,"
2620
" cannot bind", self.interface)
2621
else:
2622
raise
1779
2623
# Only bind(2) the socket if we really need to.
1780
2624
if self.server_address[0] or self.server_address[1]:
2625
if self.server_address[1]:
2626
self.allow_reuse_address = True
1781
2627
if not self.server_address[0]:
1782
2628
if self.address_family == socket.AF_INET6:
1783
any_address = "::" # in6addr_any
2629
any_address = "::" # in6addr_any
1784
2630
else:
1785
any_address = socket.INADDR_ANY
2631
any_address = "0.0.0.0" # INADDR_ANY
1786
2632
self.server_address = (any_address,
1787
2633
self.server_address[1])
1788
2634
elif not self.server_address[1]:
1789
self.server_address = (self.server_address[0],
1790
0)
2635
self.server_address = (self.server_address[0], 0)
1791
2636
# if self.interface:
1792
2637
# self.server_address = (self.server_address[0],
1793
2638
# 0, # port
1799
2644
1800
2645
class MandosServer(IPv6_TCPServer):
1801
2646
"""Mandos server.
1802
2647
1803
2648
Attributes:
1804
2649
clients: set of Client objects
1805
2650
gnutls_priority GnuTLS priority string
1806
2651
use_dbus: Boolean; to emit D-Bus signals or not
1807
1808
Assumes a gobject.MainLoop event loop.
2652
2653
Assumes a GLib.MainLoop event loop.
1809
2654
"""
2655
1810
2656
def __init__(self, server_address, RequestHandlerClass,
1811
interface=None, use_ipv6=True, clients=None,
1812
gnutls_priority=None, use_dbus=True):
2657
interface=None,
2658
use_ipv6=True,
2659
clients=None,
2660
gnutls_priority=None,
2661
use_dbus=True,
2662
socketfd=None):
1813
2663
self.enabled = False
1814
2664
self.clients = clients
1815
2665
if self.clients is None:
1818
2668
self.gnutls_priority = gnutls_priority
1819
2669
IPv6_TCPServer.__init__(self, server_address,
1820
2670
RequestHandlerClass,
1821
interface = interface,
1822
use_ipv6 = use_ipv6)
2671
interface=interface,
2672
use_ipv6=use_ipv6,
2673
socketfd=socketfd)
2674
1823
2675
def server_activate(self):
1824
2676
if self.enabled:
1825
2677
return socketserver.TCPServer.server_activate(self)
1826
2678
1827
2679
def enable(self):
1828
2680
self.enabled = True
1829
2681
1830
2682
def add_pipe(self, parent_pipe, proc):
1831
2683
# 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)
2684
GLib.io_add_watch(
2685
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2686
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2687
functools.partial(self.handle_ipc,
2688
parent_pipe=parent_pipe,
2689
proc=proc))
2690
2691
def handle_ipc(self, source, condition,
2692
parent_pipe=None,
2693
proc=None,
2694
client_object=None):
1855
2695
# error, or the other end of multiprocessing.Pipe has closed
1856
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2696
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1857
2697
# Wait for other process to exit
1858
2698
proc.join()
1859
2699
return False
1860
2700
1861
2701
# Read a request from the child
1862
2702
request = parent_pipe.recv()
1863
2703
command = request[0]
1864
2704
1865
2705
if command == 'init':
1866
fpr = request[1]
1867
address = request[2]
1868
1869
for c in self.clients.itervalues():
1870
if c.fingerprint == fpr:
2706
key_id = request[1].decode("ascii")
2707
fpr = request[2].decode("ascii")
2708
address = request[3]
2709
2710
for c in self.clients.values():
2711
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2712
continue
2713
if key_id and c.key_id == key_id:
2714
client = c
2715
break
2716
if fpr and c.fingerprint == fpr:
1871
2717
client = c
1872
2718
break
1873
2719
else:
1874
logger.info("Client not found for fingerprint: %s, ad"
1875
"dress: %s", fpr, address)
2720
logger.info("Client not found for key ID: %s, address"
2721
": %s", key_id or fpr, address)
1876
2722
if self.use_dbus:
1877
2723
# Emit D-Bus signal
1878
mandos_dbus_service.ClientNotFound(fpr,
2724
mandos_dbus_service.ClientNotFound(key_id or fpr,
1879
2725
address[0])
1880
2726
parent_pipe.send(False)
1881
2727
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))
2728
2729
GLib.io_add_watch(
2730
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2731
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2732
functools.partial(self.handle_ipc,
2733
parent_pipe=parent_pipe,
2734
proc=proc,
2735
client_object=client))
1891
2736
parent_pipe.send(True)
1892
2737
# remove the old hook in favor of the new above hook on
1893
2738
# same fileno
1896
2741
funcname = request[1]
1897
2742
args = request[2]
1898
2743
kwargs = request[3]
1899
2744
1900
2745
parent_pipe.send(('data', getattr(client_object,
1901
2746
funcname)(*args,
1902
**kwargs)))
1903
2747
**kwargs)))
2748
1904
2749
if command == 'getattr':
1905
2750
attrname = request[1]
1906
if callable(client_object.__getattribute__(attrname)):
1907
parent_pipe.send(('function',))
2751
if isinstance(client_object.__getattribute__(attrname),
2752
collections.Callable):
2753
parent_pipe.send(('function', ))
1908
2754
else:
1909
parent_pipe.send(('data', client_object
1910
.__getattribute__(attrname)))
1911
2755
parent_pipe.send((
2756
'data', client_object.__getattribute__(attrname)))
2757
1912
2758
if command == 'setattr':
1913
2759
attrname = request[1]
1914
2760
value = request[2]
1915
2761
setattr(client_object, attrname, value)
1916
2762
1917
2763
return True
1918
2764
1919
2765
2766
def rfc3339_duration_to_delta(duration):
2767
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2768
2769
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2770
True
2771
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2772
True
2773
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2774
True
2775
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2776
True
2777
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2778
True
2779
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2780
True
2781
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2782
True
2783
"""
2784
2785
# Parsing an RFC 3339 duration with regular expressions is not
2786
# possible - there would have to be multiple places for the same
2787
# values, like seconds. The current code, while more esoteric, is
2788
# cleaner without depending on a parsing library. If Python had a
2789
# built-in library for parsing we would use it, but we'd like to
2790
# avoid excessive use of external libraries.
2791
2792
# New type for defining tokens, syntax, and semantics all-in-one
2793
Token = collections.namedtuple("Token", (
2794
"regexp", # To match token; if "value" is not None, must have
2795
# a "group" containing digits
2796
"value", # datetime.timedelta or None
2797
"followers")) # Tokens valid after this token
2798
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2799
# the "duration" ABNF definition in RFC 3339, Appendix A.
2800
token_end = Token(re.compile(r"$"), None, frozenset())
2801
token_second = Token(re.compile(r"(\d+)S"),
2802
datetime.timedelta(seconds=1),
2803
frozenset((token_end, )))
2804
token_minute = Token(re.compile(r"(\d+)M"),
2805
datetime.timedelta(minutes=1),
2806
frozenset((token_second, token_end)))
2807
token_hour = Token(re.compile(r"(\d+)H"),
2808
datetime.timedelta(hours=1),
2809
frozenset((token_minute, token_end)))
2810
token_time = Token(re.compile(r"T"),
2811
None,
2812
frozenset((token_hour, token_minute,
2813
token_second)))
2814
token_day = Token(re.compile(r"(\d+)D"),
2815
datetime.timedelta(days=1),
2816
frozenset((token_time, token_end)))
2817
token_month = Token(re.compile(r"(\d+)M"),
2818
datetime.timedelta(weeks=4),
2819
frozenset((token_day, token_end)))
2820
token_year = Token(re.compile(r"(\d+)Y"),
2821
datetime.timedelta(weeks=52),
2822
frozenset((token_month, token_end)))
2823
token_week = Token(re.compile(r"(\d+)W"),
2824
datetime.timedelta(weeks=1),
2825
frozenset((token_end, )))
2826
token_duration = Token(re.compile(r"P"), None,
2827
frozenset((token_year, token_month,
2828
token_day, token_time,
2829
token_week)))
2830
# Define starting values:
2831
# Value so far
2832
value = datetime.timedelta()
2833
found_token = None
2834
# Following valid tokens
2835
followers = frozenset((token_duration, ))
2836
# String left to parse
2837
s = duration
2838
# Loop until end token is found
2839
while found_token is not token_end:
2840
# Search for any currently valid tokens
2841
for token in followers:
2842
match = token.regexp.match(s)
2843
if match is not None:
2844
# Token found
2845
if token.value is not None:
2846
# Value found, parse digits
2847
factor = int(match.group(1), 10)
2848
# Add to value so far
2849
value += factor * token.value
2850
# Strip token from string
2851
s = token.regexp.sub("", s, 1)
2852
# Go to found token
2853
found_token = token
2854
# Set valid next tokens
2855
followers = found_token.followers
2856
break
2857
else:
2858
# No currently valid tokens were found
2859
raise ValueError("Invalid RFC 3339 duration: {!r}"
2860
.format(duration))
2861
# End token found
2862
return value
2863
2864
1920
2865
def string_to_delta(interval):
1921
2866
"""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)
2867
2868
>>> string_to_delta('7d') == datetime.timedelta(7)
2869
True
2870
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2871
True
2872
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2873
True
2874
>>> string_to_delta('24h') == datetime.timedelta(1)
2875
True
2876
>>> string_to_delta('1w') == datetime.timedelta(7)
2877
True
2878
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2879
True
1935
2880
"""
2881
2882
try:
2883
return rfc3339_duration_to_delta(interval)
2884
except ValueError:
2885
pass
2886
1936
2887
timevalue = datetime.timedelta(0)
1937
2888
for s in interval.split():
1938
2889
try:
1939
suffix = unicode(s[-1])
2890
suffix = s[-1]
1940
2891
value = int(s[:-1])
1941
2892
if suffix == "d":
1942
2893
delta = datetime.timedelta(value)
1949
2900
elif suffix == "w":
1950
2901
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1951
2902
else:
1952
raise ValueError("Unknown suffix %r" % suffix)
1953
except (ValueError, IndexError) as e:
2903
raise ValueError("Unknown suffix {!r}".format(suffix))
2904
except IndexError as e:
1954
2905
raise ValueError(*(e.args))
1955
2906
timevalue += delta
1956
2907
return timevalue
1957
2908
1958
2909
1959
def daemon(nochdir = False, noclose = False):
2910
def daemon(nochdir=False, noclose=False):
1960
2911
"""See daemon(3). Standard BSD Unix function.
1961
2912
1962
2913
This should really exist as os.daemon, but it doesn't (yet)."""
1963
2914
if os.fork():
1964
2915
sys.exit()
1969
2920
sys.exit()
1970
2921
if not noclose:
1971
2922
# Close all standard open file descriptors
1972
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2923
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1973
2924
if not stat.S_ISCHR(os.fstat(null).st_mode):
1974
2925
raise OSError(errno.ENODEV,
1975
"%s not a character device"
1976
% os.path.devnull)
2926
"{} not a character device"
2927
.format(os.devnull))
1977
2928
os.dup2(null, sys.stdin.fileno())
1978
2929
os.dup2(null, sys.stdout.fileno())
1979
2930
os.dup2(null, sys.stderr.fileno())
1982
2933
1983
2934
1984
2935
def main():
1985
2936
1986
2937
##################################################################
1987
2938
# Parsing of options, both command line and config file
1988
2939
1989
2940
parser = argparse.ArgumentParser()
1990
2941
parser.add_argument("-v", "--version", action="version",
1991
version = "%%(prog)s %s" % version,
2942
version="%(prog)s {}".format(version),
1992
2943
help="show version number and exit")
1993
2944
parser.add_argument("-i", "--interface", metavar="IF",
1994
2945
help="Bind to interface IF")
2000
2951
help="Run self-test")
2001
2952
parser.add_argument("--debug", action="store_true",
2002
2953
help="Debug mode; run in foreground and log"
2003
" to terminal")
2954
" to terminal", default=None)
2004
2955
parser.add_argument("--debuglevel", metavar="LEVEL",
2005
2956
help="Debug level for stdout output")
2006
2957
parser.add_argument("--priority", help="GnuTLS"
2013
2964
" files")
2014
2965
parser.add_argument("--no-dbus", action="store_false",
2015
2966
dest="use_dbus", help="Do not provide D-Bus"
2016
" system bus interface")
2967
" system bus interface", default=None)
2017
2968
parser.add_argument("--no-ipv6", action="store_false",
2018
dest="use_ipv6", help="Do not use IPv6")
2969
dest="use_ipv6", help="Do not use IPv6",
2970
default=None)
2019
2971
parser.add_argument("--no-restore", action="store_false",
2020
2972
dest="restore", help="Do not restore stored"
2021
" state")
2973
" state", default=None)
2974
parser.add_argument("--socket", type=int,
2975
help="Specify a file descriptor to a network"
2976
" socket to use instead of creating one")
2022
2977
parser.add_argument("--statedir", metavar="DIR",
2023
2978
help="Directory to save/restore state in")
2024
2979
parser.add_argument("--foreground", action="store_true",
2980
help="Run in foreground", default=None)
2981
parser.add_argument("--no-zeroconf", action="store_false",
2982
dest="zeroconf", help="Do not use Zeroconf",
2983
default=None)
2984
2025
2985
options = parser.parse_args()
2026
2027
if options.check:
2028
import doctest
2029
doctest.testmod()
2030
sys.exit()
2031
2986
2032
2987
# 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
2988
if gnutls.has_rawpk:
2989
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2990
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2991
else:
2992
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2993
":+SIGN-DSA-SHA256")
2994
server_defaults = {"interface": "",
2995
"address": "",
2996
"port": "",
2997
"debug": "False",
2998
"priority": priority,
2999
"servicename": "Mandos",
3000
"use_dbus": "True",
3001
"use_ipv6": "True",
3002
"debuglevel": "",
3003
"restore": "True",
3004
"socket": "",
3005
"statedir": "/var/lib/mandos",
3006
"foreground": "False",
3007
"zeroconf": "True",
3008
}
3009
del priority
3010
2047
3011
# Parse config file for server-global settings
2048
server_config = configparser.SafeConfigParser(server_defaults)
3012
server_config = configparser.ConfigParser(server_defaults)
2049
3013
del server_defaults
2050
server_config.read(os.path.join(options.configdir,
2051
"mandos.conf"))
2052
# Convert the SafeConfigParser object to a dict
3014
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3015
# Convert the ConfigParser object to a dict
2053
3016
server_settings = server_config.defaults()
2054
3017
# Use the appropriate methods on the non-string config options
2055
for option in ("debug", "use_dbus", "use_ipv6"):
3018
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3019
"foreground", "zeroconf"):
2056
3020
server_settings[option] = server_config.getboolean("DEFAULT",
2057
3021
option)
2058
3022
if server_settings["port"]:
2059
3023
server_settings["port"] = server_config.getint("DEFAULT",
2060
3024
"port")
3025
if server_settings["socket"]:
3026
server_settings["socket"] = server_config.getint("DEFAULT",
3027
"socket")
3028
# Later, stdin will, and stdout and stderr might, be dup'ed
3029
# over with an opened os.devnull. But we don't want this to
3030
# happen with a supplied network socket.
3031
if 0 <= server_settings["socket"] <= 2:
3032
server_settings["socket"] = os.dup(server_settings
3033
["socket"])
2061
3034
del server_config
2062
3035
2063
3036
# Override the settings from the config file with command line
2064
3037
# options, if set.
2065
3038
for option in ("interface", "address", "port", "debug",
2066
"priority", "servicename", "configdir",
2067
"use_dbus", "use_ipv6", "debuglevel", "restore",
2068
"statedir"):
3039
"priority", "servicename", "configdir", "use_dbus",
3040
"use_ipv6", "debuglevel", "restore", "statedir",
3041
"socket", "foreground", "zeroconf"):
2069
3042
value = getattr(options, option)
2070
3043
if value is not None:
2071
3044
server_settings[option] = value
2072
3045
del options
2073
3046
# Force all strings to be unicode
2074
3047
for option in server_settings.keys():
2075
if type(server_settings[option]) is str:
2076
server_settings[option] = unicode(server_settings[option])
3048
if isinstance(server_settings[option], bytes):
3049
server_settings[option] = (server_settings[option]
3050
.decode("utf-8"))
3051
# Force all boolean options to be boolean
3052
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3053
"foreground", "zeroconf"):
3054
server_settings[option] = bool(server_settings[option])
3055
# Debug implies foreground
3056
if server_settings["debug"]:
3057
server_settings["foreground"] = True
2077
3058
# Now we have our good server settings in "server_settings"
2078
3059
2079
3060
##################################################################
2080
3061
3062
if (not server_settings["zeroconf"]
3063
and not (server_settings["port"]
3064
or server_settings["socket"] != "")):
3065
parser.error("Needs port or socket to work without Zeroconf")
3066
2081
3067
# For convenience
2082
3068
debug = server_settings["debug"]
2083
3069
debuglevel = server_settings["debuglevel"]
2085
3071
use_ipv6 = server_settings["use_ipv6"]
2086
3072
stored_state_path = os.path.join(server_settings["statedir"],
2087
3073
stored_state_file)
2088
3074
foreground = server_settings["foreground"]
3075
zeroconf = server_settings["zeroconf"]
3076
2089
3077
if debug:
2090
3078
initlogger(debug, logging.DEBUG)
2091
3079
else:
2094
3082
else:
2095
3083
level = getattr(logging, debuglevel.upper())
2096
3084
initlogger(debug, level)
2097
3085
2098
3086
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
3087
syslogger.setFormatter(
3088
logging.Formatter('Mandos ({}) [%(process)d]:'
3089
' %(levelname)s: %(message)s'.format(
3090
server_settings["servicename"])))
3091
2104
3092
# Parse config file with clients
2105
client_config = configparser.SafeConfigParser(Client
2106
.client_defaults)
3093
client_config = configparser.ConfigParser(Client.client_defaults)
2107
3094
client_config.read(os.path.join(server_settings["configdir"],
2108
3095
"clients.conf"))
2109
3096
2110
3097
global mandos_dbus_service
2111
3098
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
3099
3100
socketfd = None
3101
if server_settings["socket"] != "":
3102
socketfd = server_settings["socket"]
3103
tcp_server = MandosServer(
3104
(server_settings["address"], server_settings["port"]),
3105
ClientHandler,
3106
interface=(server_settings["interface"] or None),
3107
use_ipv6=use_ipv6,
3108
gnutls_priority=server_settings["priority"],
3109
use_dbus=use_dbus,
3110
socketfd=socketfd)
3111
if not foreground:
3112
pidfilename = "/run/mandos.pid"
3113
if not os.path.isdir("/run/."):
3114
pidfilename = "/var/run/mandos.pid"
3115
pidfile = None
3116
try:
3117
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3118
except IOError as e:
3119
logger.error("Could not open file %r", pidfilename,
3120
exc_info=e)
3121
3122
for name, group in (("_mandos", "_mandos"),
3123
("mandos", "mandos"),
3124
("nobody", "nogroup")):
3125
try:
3126
uid = pwd.getpwnam(name).pw_uid
3127
gid = pwd.getpwnam(group).pw_gid
3128
break
2136
3129
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
3130
continue
3131
else:
3132
uid = 65534
3133
gid = 65534
2143
3134
try:
2144
3135
os.setgid(gid)
2145
3136
os.setuid(uid)
3137
if debug:
3138
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3139
gid))
2146
3140
except OSError as error:
2147
if error[0] != errno.EPERM:
2148
raise error
2149
3141
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3142
.format(uid, gid, os.strerror(error.errno)))
3143
if error.errno != errno.EPERM:
3144
raise
3145
2150
3146
if debug:
2151
3147
# Enable all possible GnuTLS debugging
2152
3148
2153
3149
# "Use a log level over 10 to enable all debugging options."
2154
3150
# - GnuTLS manual
2155
gnutls.library.functions.gnutls_global_set_log_level(11)
2156
2157
@gnutls.library.types.gnutls_log_func
3151
gnutls.global_set_log_level(11)
3152
3153
@gnutls.log_func
2158
3154
def debug_gnutls(level, string):
2159
3155
logger.debug("GnuTLS: %s", string[:-1])
2160
2161
(gnutls.library.functions
2162
.gnutls_global_set_log_function(debug_gnutls))
2163
3156
3157
gnutls.global_set_log_function(debug_gnutls)
3158
2164
3159
# Redirect stdin so all checkers get /dev/null
2165
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3160
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2166
3161
os.dup2(null, sys.stdin.fileno())
2167
3162
if null > 2:
2168
3163
os.close(null)
2169
3164
2170
3165
# Need to fork before connecting to D-Bus
2171
if not debug:
3166
if not foreground:
2172
3167
# Close all input and output, do double fork, etc.
2173
3168
daemon()
2174
2175
gobject.threads_init()
2176
3169
3170
if gi.version_info < (3, 10, 2):
3171
# multiprocessing will use threads, so before we use GLib we
3172
# need to inform GLib that threads will be used.
3173
GLib.threads_init()
3174
2177
3175
global main_loop
2178
3176
# From the Avahi example code
2179
DBusGMainLoop(set_as_default=True )
2180
main_loop = gobject.MainLoop()
3177
DBusGMainLoop(set_as_default=True)
3178
main_loop = GLib.MainLoop()
2181
3179
bus = dbus.SystemBus()
2182
3180
# End of Avahi example code
2183
3181
if use_dbus:
2184
3182
try:
2185
3183
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")
3184
bus,
3185
do_not_queue=True)
3186
old_bus_name = dbus.service.BusName(
3187
"se.bsnet.fukt.Mandos", bus,
3188
do_not_queue=True)
3189
except dbus.exceptions.DBusException as e:
3190
logger.error("Disabling D-Bus:", exc_info=e)
2192
3191
use_dbus = False
2193
3192
server_settings["use_dbus"] = False
2194
3193
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
3194
if zeroconf:
3195
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3196
service = AvahiServiceToSyslog(
3197
name=server_settings["servicename"],
3198
servicetype="_mandos._tcp",
3199
protocol=protocol,
3200
bus=bus)
3201
if server_settings["interface"]:
3202
service.interface = if_nametoindex(
3203
server_settings["interface"].encode("utf-8"))
3204
2204
3205
global multiprocessing_manager
2205
3206
multiprocessing_manager = multiprocessing.Manager()
2206
3207
2207
3208
client_class = Client
2208
3209
if use_dbus:
2209
client_class = functools.partial(ClientDBusTransitional,
2210
bus = bus)
2211
3210
client_class = functools.partial(ClientDBus, bus=bus)
3211
2212
3212
client_settings = Client.config_parser(client_config)
2213
3213
old_client_settings = {}
2214
3214
clients_data = {}
2215
3215
3216
# This is used to redirect stdout and stderr for checker processes
3217
global wnull
3218
wnull = open(os.devnull, "w") # A writable /dev/null
3219
# Only used if server is running in foreground but not in debug
3220
# mode
3221
if debug or not foreground:
3222
wnull.close()
3223
2216
3224
# Get client data and settings from last running state.
2217
3225
if server_settings["restore"]:
2218
3226
try:
2219
3227
with open(stored_state_path, "rb") as stored_state:
2220
clients_data, old_client_settings = (pickle.load
2221
(stored_state))
3228
if sys.version_info.major == 2:
3229
clients_data, old_client_settings = pickle.load(
3230
stored_state)
3231
else:
3232
bytes_clients_data, bytes_old_client_settings = (
3233
pickle.load(stored_state, encoding="bytes"))
3234
# Fix bytes to strings
3235
# clients_data
3236
# .keys()
3237
clients_data = {(key.decode("utf-8")
3238
if isinstance(key, bytes)
3239
else key): value
3240
for key, value in
3241
bytes_clients_data.items()}
3242
del bytes_clients_data
3243
for key in clients_data:
3244
value = {(k.decode("utf-8")
3245
if isinstance(k, bytes) else k): v
3246
for k, v in
3247
clients_data[key].items()}
3248
clients_data[key] = value
3249
# .client_structure
3250
value["client_structure"] = [
3251
(s.decode("utf-8")
3252
if isinstance(s, bytes)
3253
else s) for s in
3254
value["client_structure"]]
3255
# .name, .host, and .checker_command
3256
for k in ("name", "host", "checker_command"):
3257
if isinstance(value[k], bytes):
3258
value[k] = value[k].decode("utf-8")
3259
if "key_id" not in value:
3260
value["key_id"] = ""
3261
elif "fingerprint" not in value:
3262
value["fingerprint"] = ""
3263
# old_client_settings
3264
# .keys()
3265
old_client_settings = {
3266
(key.decode("utf-8")
3267
if isinstance(key, bytes)
3268
else key): value
3269
for key, value in
3270
bytes_old_client_settings.items()}
3271
del bytes_old_client_settings
3272
# .host and .checker_command
3273
for value in old_client_settings.values():
3274
for attribute in ("host", "checker_command"):
3275
if isinstance(value[attribute], bytes):
3276
value[attribute] = (value[attribute]
3277
.decode("utf-8"))
2222
3278
os.remove(stored_state_path)
2223
3279
except IOError as e:
2224
logger.warning("Could not load persistent state: {0}"
2225
.format(e))
2226
if e.errno != errno.ENOENT:
3280
if e.errno == errno.ENOENT:
3281
logger.warning("Could not load persistent state:"
3282
" {}".format(os.strerror(e.errno)))
3283
else:
3284
logger.critical("Could not load persistent state:",
3285
exc_info=e)
2227
3286
raise
2228
3287
except EOFError as e:
2229
3288
logger.warning("Could not load persistent state: "
2230
"EOFError: {0}".format(e))
2231
3289
"EOFError:",
3290
exc_info=e)
3291
2232
3292
with PGPEngine() as pgp:
2233
for client_name, client in clients_data.iteritems():
3293
for client_name, client in clients_data.items():
3294
# Skip removed clients
3295
if client_name not in client_settings:
3296
continue
3297
2234
3298
# Decide which value to use after restoring saved state.
2235
3299
# We have three different values: Old config file,
2236
3300
# new config file, and saved state.
2241
3305
# For each value in new config, check if it
2242
3306
# differs from the old config value (Except for
2243
3307
# the "secret" attribute)
2244
if (name != "secret" and
2245
value != old_client_settings[client_name]
2246
[name]):
3308
if (name != "secret"
3309
and (value !=
3310
old_client_settings[client_name][name])):
2247
3311
client[name] = value
2248
3312
except KeyError:
2249
3313
pass
2250
3314
2251
3315
# 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.
3316
# enabled if its last checker was successful. A Client
3317
# whose checker succeeded before we stored its state is
3318
# assumed to have successfully run all checkers during
3319
# downtime.
2255
3320
if client["enabled"]:
2256
3321
if datetime.datetime.utcnow() >= client["expires"]:
2257
3322
if not client["last_checked_ok"]:
2258
3323
logger.warning(
2259
"disabling client {0} - Client never "
2260
"performed a successfull checker"
2261
.format(client["name"]))
3324
"disabling client {} - Client never "
3325
"performed a successful checker".format(
3326
client_name))
2262
3327
client["enabled"] = False
2263
3328
elif client["last_checker_status"] != 0:
2264
3329
logger.warning(
2265
"disabling client {0} - Client "
2266
"last checker failed with error code {1}"
2267
.format(client["name"],
2268
client["last_checker_status"]))
3330
"disabling client {} - Client last"
3331
" checker failed with error code"
3332
" {}".format(
3333
client_name,
3334
client["last_checker_status"]))
2269
3335
client["enabled"] = False
2270
3336
else:
2271
client["expires"] = (datetime.datetime
2272
.utcnow()
2273
+ client["timeout"])
3337
client["expires"] = (
3338
datetime.datetime.utcnow()
3339
+ client["timeout"])
2274
3340
logger.debug("Last checker succeeded,"
2275
" keeping {0} enabled"
2276
.format(client["name"]))
3341
" keeping {} enabled".format(
3342
client_name))
2277
3343
try:
2278
client["secret"] = (
2279
pgp.decrypt(client["encrypted_secret"],
2280
client_settings[client_name]
2281
["secret"]))
3344
client["secret"] = pgp.decrypt(
3345
client["encrypted_secret"],
3346
client_settings[client_name]["secret"])
2282
3347
except PGPError:
2283
3348
# 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"])
3349
logger.debug("Failed to decrypt {} old secret".format(
3350
client_name))
3351
client["secret"] = (client_settings[client_name]
3352
["secret"])
2288
3353
2289
2290
3354
# Add/remove clients based on new changes made to config
2291
3355
for client_name in (set(old_client_settings)
2292
3356
- set(client_settings)):
2295
3359
- set(old_client_settings)):
2296
3360
clients_data[client_name] = client_settings[client_name]
2297
3361
2298
# Create clients all clients
2299
for client_name, client in clients_data.iteritems():
3362
# Create all client objects
3363
for client_name, client in clients_data.items():
2300
3364
tcp_server.clients[client_name] = client_class(
2301
name = client_name, settings = client)
2302
3365
name=client_name,
3366
settings=client,
3367
server_settings=server_settings)
3368
2303
3369
if not tcp_server.clients:
2304
3370
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
3371
3372
if not foreground:
3373
if pidfile is not None:
3374
pid = os.getpid()
3375
try:
3376
with pidfile:
3377
print(pid, file=pidfile)
3378
except IOError:
3379
logger.error("Could not write to file %r with PID %d",
3380
pidfilename, pid)
3381
del pidfile
2318
3382
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
3383
3384
for termsig in (signal.SIGHUP, signal.SIGTERM):
3385
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3386
lambda: main_loop.quit() and False)
3387
2324
3388
if use_dbus:
2325
class MandosDBusService(dbus.service.Object):
3389
3390
@alternate_dbus_interfaces(
3391
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3392
class MandosDBusService(DBusObjectWithObjectManager):
2326
3393
"""A D-Bus proxy object"""
3394
2327
3395
def __init__(self):
2328
3396
dbus.service.Object.__init__(self, bus, "/")
3397
2329
3398
_interface = "se.recompile.Mandos"
2330
3399
2331
3400
@dbus.service.signal(_interface, signature="o")
2332
3401
def ClientAdded(self, objpath):
2333
3402
"D-Bus signal"
2334
3403
pass
2335
3404
2336
3405
@dbus.service.signal(_interface, signature="ss")
2337
def ClientNotFound(self, fingerprint, address):
3406
def ClientNotFound(self, key_id, address):
2338
3407
"D-Bus signal"
2339
3408
pass
2340
3409
3410
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3411
"true"})
2341
3412
@dbus.service.signal(_interface, signature="os")
2342
3413
def ClientRemoved(self, objpath, name):
2343
3414
"D-Bus signal"
2344
3415
pass
2345
3416
3417
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3418
"true"})
2346
3419
@dbus.service.method(_interface, out_signature="ao")
2347
3420
def GetAllClients(self):
2348
3421
"D-Bus method"
2349
return dbus.Array(c.dbus_object_path
2350
for c in
2351
tcp_server.clients.itervalues())
2352
3422
return dbus.Array(c.dbus_object_path for c in
3423
tcp_server.clients.values())
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2353
3427
@dbus.service.method(_interface,
2354
3428
out_signature="a{oa{sv}}")
2355
3429
def GetAllClientsWithProperties(self):
2356
3430
"D-Bus method"
2357
3431
return dbus.Dictionary(
2358
((c.dbus_object_path, c.GetAll(""))
2359
for c in tcp_server.clients.itervalues()),
3432
{c.dbus_object_path: c.GetAll(
3433
"se.recompile.Mandos.Client")
3434
for c in tcp_server.clients.values()},
2360
3435
signature="oa{sv}")
2361
3436
2362
3437
@dbus.service.method(_interface, in_signature="o")
2363
3438
def RemoveClient(self, object_path):
2364
3439
"D-Bus method"
2365
for c in tcp_server.clients.itervalues():
3440
for c in tcp_server.clients.values():
2366
3441
if c.dbus_object_path == object_path:
2367
3442
del tcp_server.clients[c.name]
2368
3443
c.remove_from_connection()
2369
# Don't signal anything except ClientRemoved
3444
# Don't signal the disabling
2370
3445
c.disable(quiet=True)
2371
# Emit D-Bus signal
2372
self.ClientRemoved(object_path, c.name)
3446
# Emit D-Bus signal for removal
3447
self.client_removed_signal(c)
2373
3448
return
2374
3449
raise KeyError(object_path)
2375
3450
2376
3451
del _interface
2377
2378
class MandosDBusServiceTransitional(MandosDBusService):
2379
__metaclass__ = AlternateDBusNamesMetaclass
2380
mandos_dbus_service = MandosDBusServiceTransitional()
2381
3452
3453
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3454
out_signature="a{oa{sa{sv}}}")
3455
def GetManagedObjects(self):
3456
"""D-Bus method"""
3457
return dbus.Dictionary(
3458
{client.dbus_object_path:
3459
dbus.Dictionary(
3460
{interface: client.GetAll(interface)
3461
for interface in
3462
client._get_all_interface_names()})
3463
for client in tcp_server.clients.values()})
3464
3465
def client_added_signal(self, client):
3466
"""Send the new standard signal and the old signal"""
3467
if use_dbus:
3468
# New standard signal
3469
self.InterfacesAdded(
3470
client.dbus_object_path,
3471
dbus.Dictionary(
3472
{interface: client.GetAll(interface)
3473
for interface in
3474
client._get_all_interface_names()}))
3475
# Old signal
3476
self.ClientAdded(client.dbus_object_path)
3477
3478
def client_removed_signal(self, client):
3479
"""Send the new standard signal and the old signal"""
3480
if use_dbus:
3481
# New standard signal
3482
self.InterfacesRemoved(
3483
client.dbus_object_path,
3484
client._get_all_interface_names())
3485
# Old signal
3486
self.ClientRemoved(client.dbus_object_path,
3487
client.name)
3488
3489
mandos_dbus_service = MandosDBusService()
3490
3491
# Save modules to variables to exempt the modules from being
3492
# unloaded before the function registered with atexit() is run.
3493
mp = multiprocessing
3494
wn = wnull
3495
2382
3496
def cleanup():
2383
3497
"Cleanup function; run on exit"
2384
service.cleanup()
2385
2386
multiprocessing.active_children()
3498
if zeroconf:
3499
service.cleanup()
3500
3501
mp.active_children()
3502
wn.close()
2387
3503
if not (tcp_server.clients or client_settings):
2388
3504
return
2389
3505
2390
3506
# Store client before exiting. Secrets are encrypted with key
2391
3507
# based on what config file has. If config file is
2392
3508
# removed/edited, old secret will thus be unrecovable.
2393
3509
clients = {}
2394
3510
with PGPEngine() as pgp:
2395
for client in tcp_server.clients.itervalues():
3511
for client in tcp_server.clients.values():
2396
3512
key = client_settings[client.name]["secret"]
2397
3513
client.encrypted_secret = pgp.encrypt(client.secret,
2398
3514
key)
2399
3515
client_dict = {}
2400
3516
2401
3517
# A list of attributes that can not be pickled
2402
3518
# + secret.
2403
exclude = set(("bus", "changedstate", "secret",
2404
"checker"))
2405
for name, typ in (inspect.getmembers
2406
(dbus.service.Object)):
3519
exclude = {"bus", "changedstate", "secret",
3520
"checker", "server_settings"}
3521
for name, typ in inspect.getmembers(dbus.service
3522
.Object):
2407
3523
exclude.add(name)
2408
3524
2409
3525
client_dict["encrypted_secret"] = (client
2410
3526
.encrypted_secret)
2411
3527
for attr in client.client_structure:
2412
3528
if attr not in exclude:
2413
3529
client_dict[attr] = getattr(client, attr)
2414
3530
2415
3531
clients[client.name] = client_dict
2416
3532
del client_settings[client.name]["secret"]
2417
3533
2418
3534
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)
3535
with tempfile.NamedTemporaryFile(
3536
mode='wb',
3537
suffix=".pickle",
3538
prefix='clients-',
3539
dir=os.path.dirname(stored_state_path),
3540
delete=False) as stored_state:
3541
pickle.dump((clients, client_settings), stored_state,
3542
protocol=2)
3543
tempname = stored_state.name
2425
3544
os.rename(tempname, stored_state_path)
2426
3545
except (IOError, OSError) as e:
2427
logger.warning("Could not save persistent state: {0}"
2428
.format(e))
2429
3546
if not debug:
2430
3547
try:
2431
3548
os.remove(tempname)
2432
3549
except NameError:
2433
3550
pass
2434
if e.errno not in set((errno.ENOENT, errno.EACCES,
2435
errno.EEXIST)):
2436
raise e
2437
3551
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3552
logger.warning("Could not save persistent state: {}"
3553
.format(os.strerror(e.errno)))
3554
else:
3555
logger.warning("Could not save persistent state:",
3556
exc_info=e)
3557
raise
3558
2438
3559
# Delete all clients, and settings from config
2439
3560
while tcp_server.clients:
2440
3561
name, client = tcp_server.clients.popitem()
2441
3562
if use_dbus:
2442
3563
client.remove_from_connection()
2443
# Don't signal anything except ClientRemoved
3564
# Don't signal the disabling
2444
3565
client.disable(quiet=True)
3566
# Emit D-Bus signal for removal
2445
3567
if use_dbus:
2446
# Emit D-Bus signal
2447
mandos_dbus_service.ClientRemoved(client
2448
.dbus_object_path,
2449
client.name)
3568
mandos_dbus_service.client_removed_signal(client)
2450
3569
client_settings.clear()
2451
3570
2452
3571
atexit.register(cleanup)
2453
2454
for client in tcp_server.clients.itervalues():
3572
3573
for client in tcp_server.clients.values():
2455
3574
if use_dbus:
2456
# Emit D-Bus signal
2457
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3575
# Emit D-Bus signal for adding
3576
mandos_dbus_service.client_added_signal(client)
2458
3577
# Need to initiate checking of clients
2459
3578
if client.enabled:
2460
3579
client.init_checker()
2461
3580
2462
3581
tcp_server.enable()
2463
3582
tcp_server.server_activate()
2464
3583
2465
3584
# Find out what port we got
2466
service.port = tcp_server.socket.getsockname()[1]
3585
if zeroconf:
3586
service.port = tcp_server.socket.getsockname()[1]
2467
3587
if use_ipv6:
2468
3588
logger.info("Now listening on address %r, port %d,"
2469
" flowinfo %d, scope_id %d"
2470
% tcp_server.socket.getsockname())
3589
" flowinfo %d, scope_id %d",
3590
*tcp_server.socket.getsockname())
2471
3591
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
3592
logger.info("Now listening on address %r, port %d",
3593
*tcp_server.socket.getsockname())
3594
3595
# service.interface = tcp_server.socket.getsockname()[3]
3596
2477
3597
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
3598
if zeroconf:
3599
# From the Avahi example code
3600
try:
3601
service.activate()
3602
except dbus.exceptions.DBusException as error:
3603
logger.critical("D-Bus Exception", exc_info=error)
3604
cleanup()
3605
sys.exit(1)
3606
# End of Avahi example code
3607
3608
GLib.io_add_watch(
3609
GLib.IOChannel.unix_new(tcp_server.fileno()),
3610
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3611
lambda *args, **kwargs: (tcp_server.handle_request
3612
(*args[2:], **kwargs) or True))
3613
2492
3614
logger.debug("Starting main loop")
2493
3615
main_loop.run()
2494
3616
except AvahiError as error:
2495
logger.critical("AvahiError: %s", error)
3617
logger.critical("Avahi Error", exc_info=error)
2496
3618
cleanup()
2497
3619
sys.exit(1)
2498
3620
except KeyboardInterrupt:
2503
3625
# Must run before the D-Bus bus name gets deregistered
2504
3626
cleanup()
2505
3627
3628
3629
def should_only_run_tests():
3630
parser = argparse.ArgumentParser(add_help=False)
3631
parser.add_argument("--check", action='store_true')
3632
args, unknown_args = parser.parse_known_args()
3633
run_tests = args.check
3634
if run_tests:
3635
# Remove --check argument from sys.argv
3636
sys.argv[1:] = unknown_args
3637
return run_tests
3638
3639
# Add all tests from doctest strings
3640
def load_tests(loader, tests, none):
3641
import doctest
3642
tests.addTests(doctest.DocTestSuite())
3643
return tests
3644
2506
3645
if __name__ == '__main__':
2507
main()
3646
try:
3647
if should_only_run_tests():
3648
# Call using ./mandos --check [--verbose]
3649
unittest.main()
3650
else:
3651
main()
3652
finally:
3653
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0