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- Committer: Björn Påhlsson
- Date: 2011-10-15 16:48:03 UTC
- Revision ID: belorn@fukt.bsnet.se-20111015164803-61q3hzrv91d042mb
Tags: version-1.4.1-1
* Makefile (version): Changed to "1.4.1".
* NEWS (Version 1.4.1): New entry.
* debian/changelog (1.4.1-1): - '' -
* NEWS (Version 1.4.1): New entry.
* debian/changelog (1.4.1-1): - '' -
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
1
#!/usr/bin/python
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
#
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
66
82
67
import dbus
83
68
import dbus.service
84
import gi
85
from gi.repository import GLib
69
import gobject
70
import avahi
86
71
from dbus.mainloop.glib import DBusGMainLoop
87
72
import ctypes
88
73
import ctypes.util
89
74
import xml.dom.minidom
90
75
import inspect
91
76
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:
101
77
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:
104
78
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
105
79
except AttributeError:
106
80
try:
107
# This is where SO_BINDTODEVICE was up to and including Python
108
# 2.6, and also 3.2:
109
81
from IN import SO_BINDTODEVICE
110
82
except ImportError:
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"
132
stored_state_file = "clients.pickle"
133
134
logger = logging.getLogger()
135
logging.captureWarnings(True) # Show warnings via the logging system
136
syslogger = None
137
138
try:
139
if_nametoindex = ctypes.cdll.LoadLibrary(
140
ctypes.util.find_library("c")).if_nametoindex
141
except (OSError, AttributeError):
142
143
def if_nametoindex(interface):
144
"Get an interface index the hard way, i.e. using fcntl()"
145
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
146
with contextlib.closing(socket.socket()) as s:
147
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
148
struct.pack(b"16s16x", interface))
149
interface_index = struct.unpack("I", ifreq[16:20])[0]
150
return interface_index
151
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
169
def initlogger(debug, level=logging.WARNING):
170
"""init logger and add loglevel"""
171
172
global syslogger
173
syslogger = (logging.handlers.SysLogHandler(
174
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
175
address="/dev/log"))
176
syslogger.setFormatter(logging.Formatter
177
('Mandos [%(process)d]: %(levelname)s:'
178
' %(message)s'))
179
logger.addHandler(syslogger)
180
181
if debug:
182
console = logging.StreamHandler()
183
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
184
' [%(process)d]:'
185
' %(levelname)s:'
186
' %(message)s'))
187
logger.addHandler(console)
188
logger.setLevel(level)
189
190
191
class PGPError(Exception):
192
"""Exception if encryption/decryption fails"""
193
pass
194
195
196
class PGPEngine:
197
"""A simple class for OpenPGP symmetric encryption & decryption"""
198
199
def __init__(self):
200
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
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 == "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 == "gpg" or self.gpg.endswith("/gpg"):
218
self.gnupgargs.append("--no-use-agent")
219
220
def __enter__(self):
221
return self
222
223
def __exit__(self, exc_type, exc_value, traceback):
224
self._cleanup()
225
return False
226
227
def __del__(self):
228
self._cleanup()
229
230
def _cleanup(self):
231
if self.tempdir is not None:
232
# Delete contents of tempdir
233
for root, dirs, files in os.walk(self.tempdir,
234
topdown=False):
235
for filename in files:
236
os.remove(os.path.join(root, filename))
237
for dirname in dirs:
238
os.rmdir(os.path.join(root, dirname))
239
# Remove tempdir
240
os.rmdir(self.tempdir)
241
self.tempdir = None
242
243
def password_encode(self, password):
244
# Passphrase can not be empty and can not contain newlines or
245
# NUL bytes. So we prefix it and hex encode it.
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
254
def encrypt(self, data, password):
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)
270
return ciphertext
271
272
def decrypt(self, data, password):
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)
288
return decrypted_plaintext
289
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
83
SO_BINDTODEVICE = None
84
85
86
version = "1.4.1"
87
88
#logger = logging.getLogger('mandos')
89
logger = logging.Logger('mandos')
90
syslogger = (logging.handlers.SysLogHandler
91
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
92
address = str("/dev/log")))
93
syslogger.setFormatter(logging.Formatter
94
('Mandos [%(process)d]: %(levelname)s:'
95
' %(message)s'))
96
logger.addHandler(syslogger)
97
98
console = logging.StreamHandler()
99
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
100
' %(levelname)s:'
101
' %(message)s'))
102
logger.addHandler(console)
316
103
317
104
class AvahiError(Exception):
318
105
def __init__(self, value, *args, **kwargs):
319
106
self.value = value
320
return super(AvahiError, self).__init__(value, *args,
321
**kwargs)
322
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
323
110
324
111
class AvahiServiceError(AvahiError):
325
112
pass
326
113
327
328
114
class AvahiGroupError(AvahiError):
329
115
pass
330
116
331
117
332
class AvahiService:
118
class AvahiService(object):
333
119
"""An Avahi (Zeroconf) service.
334
120
335
121
Attributes:
336
122
interface: integer; avahi.IF_UNSPEC or an interface index.
337
123
Used to optionally bind to the specified interface.
338
124
name: string; Example: 'Mandos'
339
125
type: string; Example: '_mandos._tcp'.
340
See <https://www.iana.org/assignments/service-names-port-numbers>
126
See <http://www.dns-sd.org/ServiceTypes.html>
341
127
port: integer; what port to announce
342
128
TXT: list of strings; TXT record for the service
343
129
domain: string; Domain to publish on, default to .local if empty.
349
135
server: D-Bus Server
350
136
bus: dbus.SystemBus()
351
137
"""
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):
138
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
139
servicetype = None, port = None, TXT = None,
140
domain = "", host = "", max_renames = 32768,
141
protocol = avahi.PROTO_UNSPEC, bus = None):
364
142
self.interface = interface
365
143
self.name = name
366
144
self.type = servicetype
375
153
self.server = None
376
154
self.bus = bus
377
155
self.entry_group_state_changed_match = None
378
379
def rename(self, remove=True):
156
def rename(self):
380
157
"""Derived from the Avahi example code"""
381
158
if self.rename_count >= self.max_renames:
382
159
logger.critical("No suitable Zeroconf service name found"
383
160
" after %i retries, exiting.",
384
161
self.rename_count)
385
162
raise AvahiServiceError("Too many renames")
386
self.name = str(
387
self.server.GetAlternativeServiceName(self.name))
388
self.rename_count += 1
163
self.name = unicode(self.server
164
.GetAlternativeServiceName(self.name))
389
165
logger.info("Changing Zeroconf service name to %r ...",
390
166
self.name)
391
if remove:
392
self.remove()
167
syslogger.setFormatter(logging.Formatter
168
('Mandos (%s) [%%(process)d]:'
169
' %%(levelname)s: %%(message)s'
170
% self.name))
171
self.remove()
393
172
try:
394
173
self.add()
395
174
except dbus.exceptions.DBusException as error:
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
175
logger.critical("DBusException: %s", error)
176
self.cleanup()
177
os._exit(1)
178
self.rename_count += 1
405
179
def remove(self):
406
180
"""Derived from the Avahi example code"""
407
181
if self.entry_group_state_changed_match is not None:
409
183
self.entry_group_state_changed_match = None
410
184
if self.group is not None:
411
185
self.group.Reset()
412
413
186
def add(self):
414
187
"""Derived from the Avahi example code"""
415
188
self.remove()
420
193
avahi.DBUS_INTERFACE_ENTRY_GROUP)
421
194
self.entry_group_state_changed_match = (
422
195
self.group.connect_to_signal(
423
'StateChanged', self.entry_group_state_changed))
196
'StateChanged', self .entry_group_state_changed))
424
197
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
425
198
self.name, self.type)
426
199
self.group.AddService(
432
205
dbus.UInt16(self.port),
433
206
avahi.string_array_to_txt_array(self.TXT))
434
207
self.group.Commit()
435
436
208
def entry_group_state_changed(self, state, error):
437
209
"""Derived from the Avahi example code"""
438
210
logger.debug("Avahi entry group state change: %i", state)
439
211
440
212
if state == avahi.ENTRY_GROUP_ESTABLISHED:
441
213
logger.debug("Zeroconf service established.")
442
214
elif state == avahi.ENTRY_GROUP_COLLISION:
444
216
self.rename()
445
217
elif state == avahi.ENTRY_GROUP_FAILURE:
446
218
logger.critical("Avahi: Error in group state changed %s",
447
str(error))
448
raise AvahiGroupError("State changed: {!s}".format(error))
449
219
unicode(error))
220
raise AvahiGroupError("State changed: %s"
221
% unicode(error))
450
222
def cleanup(self):
451
223
"""Derived from the Avahi example code"""
452
224
if self.group is not None:
453
225
try:
454
226
self.group.Free()
455
227
except (dbus.exceptions.UnknownMethodException,
456
dbus.exceptions.DBusException):
228
dbus.exceptions.DBusException) as e:
457
229
pass
458
230
self.group = None
459
231
self.remove()
460
461
232
def server_state_changed(self, state, error=None):
462
233
"""Derived from the Avahi example code"""
463
234
logger.debug("Avahi server state change: %i", state)
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
}
235
bad_states = { avahi.SERVER_INVALID:
236
"Zeroconf server invalid",
237
avahi.SERVER_REGISTERING: None,
238
avahi.SERVER_COLLISION:
239
"Zeroconf server name collision",
240
avahi.SERVER_FAILURE:
241
"Zeroconf server failure" }
470
242
if state in bad_states:
471
243
if bad_states[state] is not None:
472
244
if error is None:
475
247
logger.error(bad_states[state] + ": %r", error)
476
248
self.cleanup()
477
249
elif state == avahi.SERVER_RUNNING:
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)
250
self.add()
490
251
else:
491
252
if error is None:
492
253
logger.debug("Unknown state: %r", state)
493
254
else:
494
255
logger.debug("Unknown state: %r: %r", state, error)
495
496
256
def activate(self):
497
257
"""Derived from the Avahi example code"""
498
258
if self.server is None:
502
262
follow_name_owner_changes=True),
503
263
avahi.DBUS_INTERFACE_SERVER)
504
264
self.server.connect_to_signal("StateChanged",
505
self.server_state_changed)
265
self.server_state_changed)
506
266
self.server_state_changed(self.server.GetState())
507
267
508
268
509
class AvahiServiceToSyslog(AvahiService):
510
def rename(self, *args, **kwargs):
511
"""Add the new name to the syslog messages"""
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)))
516
return ret
517
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:
269
def _timedelta_to_milliseconds(td):
270
"Convert a datetime.timedelta() to milliseconds"
271
return ((td.days * 24 * 60 * 60 * 1000)
272
+ (td.seconds * 1000)
273
+ (td.microseconds // 1000))
274
275
class Client(object):
832
276
"""A representation of a client host served by this server.
833
277
834
278
Attributes:
835
approved: bool(); 'None' if not yet approved/disapproved
279
_approved: bool(); 'None' if not yet approved/disapproved
836
280
approval_delay: datetime.timedelta(); Time to wait for approval
837
281
approval_duration: datetime.timedelta(); Duration of one approval
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
282
checker: subprocess.Popen(); a running checker process used
283
to see if the client lives.
284
'None' if no process is running.
285
checker_callback_tag: a gobject event source tag, or None
842
286
checker_command: string; External command which is run to check
843
287
if client lives. %() expansions are done at
844
288
runtime with vars(self) as dict, so that for
845
289
instance %(name)s can be used in the command.
846
checker_initiator_tag: a GLib event source tag, or None
290
checker_initiator_tag: a gobject event source tag, or None
847
291
created: datetime.datetime(); (UTC) object creation
848
client_structure: Object describing what attributes a client has
849
and is used for storing the client at exit
850
292
current_checker_command: string; current running checker_command
851
disable_initiator_tag: a GLib event source tag, or None
293
disable_hook: If set, called by disable() as disable_hook(self)
294
disable_initiator_tag: a gobject event source tag, or None
852
295
enabled: bool()
853
296
fingerprint: string (40 or 32 hexadecimal digits); used to
854
uniquely identify an OpenPGP client
855
key_id: string (64 hexadecimal digits); used to uniquely identify
856
a client using raw public keys
297
uniquely identify the client
857
298
host: string; available for use by the checker command
858
299
interval: datetime.timedelta(); How often to start a new checker
859
300
last_approval_request: datetime.datetime(); (UTC) or None
860
301
last_checked_ok: datetime.datetime(); (UTC) or None
861
last_checker_status: integer between 0 and 255 reflecting exit
862
status of last checker. -1 reflects crashed
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
866
last_enabled: datetime.datetime(); (UTC) or None
302
last_enabled: datetime.datetime(); (UTC)
867
303
name: string; from the config file, used in log messages and
868
304
D-Bus identifiers
869
305
secret: bytestring; sent verbatim (over TLS) to client
870
306
timeout: datetime.timedelta(); How long from last_checked_ok
871
307
until this client is disabled
872
extended_timeout: extra long timeout when secret has been sent
308
extended_timeout: extra long timeout when password has been sent
873
309
runtime_expansions: Allowed attributes for runtime expansion.
874
310
expires: datetime.datetime(); time (UTC) when a client will be
875
311
disabled, or None
876
server_settings: The server_settings dict from main()
877
312
"""
878
313
879
314
runtime_expansions = ("approval_delay", "approval_duration",
880
"created", "enabled", "expires", "key_id",
881
"fingerprint", "host", "interval",
882
"last_approval_request", "last_checked_ok",
315
"created", "enabled", "fingerprint",
316
"host", "interval", "last_checked_ok",
883
317
"last_enabled", "name", "timeout")
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
}
895
896
@staticmethod
897
def config_parser(config):
898
"""Construct a new dict of client settings of this form:
899
{ client_name: {setting_name: value, ...}, ...}
900
with exceptions for any special settings as defined above.
901
NOTE: Must be a pure function. Must return the same result
902
value given the same arguments.
903
"""
904
settings = {}
905
for client_name in config.sections():
906
section = dict(config.items(client_name))
907
client = settings[client_name] = {}
908
909
client["host"] = section["host"]
910
# Reformat values from string types to Python types
911
client["approved_by_default"] = config.getboolean(
912
client_name, "approved_by_default")
913
client["enabled"] = config.getboolean(client_name,
914
"enabled")
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(" ", ""))
921
client["fingerprint"] = (section["fingerprint"].upper()
922
.replace(" ", ""))
923
if "secret" in section:
924
client["secret"] = codecs.decode(section["secret"]
925
.encode("utf-8"),
926
"base64")
927
elif "secfile" in section:
928
with open(os.path.expanduser(os.path.expandvars
929
(section["secfile"])),
930
"rb") as secfile:
931
client["secret"] = secfile.read()
932
else:
933
raise TypeError("No secret or secfile for section {}"
934
.format(section))
935
client["timeout"] = string_to_delta(section["timeout"])
936
client["extended_timeout"] = string_to_delta(
937
section["extended_timeout"])
938
client["interval"] = string_to_delta(section["interval"])
939
client["approval_delay"] = string_to_delta(
940
section["approval_delay"])
941
client["approval_duration"] = string_to_delta(
942
section["approval_duration"])
943
client["checker_command"] = section["checker"]
944
client["last_approval_request"] = None
945
client["last_checked_ok"] = None
946
client["last_checker_status"] = -2
947
948
return settings
949
950
def __init__(self, settings, name=None, server_settings=None):
318
319
def timeout_milliseconds(self):
320
"Return the 'timeout' attribute in milliseconds"
321
return _timedelta_to_milliseconds(self.timeout)
322
323
def extended_timeout_milliseconds(self):
324
"Return the 'extended_timeout' attribute in milliseconds"
325
return _timedelta_to_milliseconds(self.extended_timeout)
326
327
def interval_milliseconds(self):
328
"Return the 'interval' attribute in milliseconds"
329
return _timedelta_to_milliseconds(self.interval)
330
331
def approval_delay_milliseconds(self):
332
return _timedelta_to_milliseconds(self.approval_delay)
333
334
def __init__(self, name = None, disable_hook=None, config=None):
335
"""Note: the 'checker' key in 'config' sets the
336
'checker_command' attribute and *not* the 'checker'
337
attribute."""
951
338
self.name = name
952
if server_settings is None:
953
server_settings = {}
954
self.server_settings = server_settings
955
# adding all client settings
956
for setting, value in settings.items():
957
setattr(self, setting, value)
958
959
if self.enabled:
960
if not hasattr(self, "last_enabled"):
961
self.last_enabled = datetime.datetime.utcnow()
962
if not hasattr(self, "expires"):
963
self.expires = (datetime.datetime.utcnow()
964
+ self.timeout)
965
else:
966
self.last_enabled = None
967
self.expires = None
968
339
if config is None:
340
config = {}
969
341
logger.debug("Creating client %r", self.name)
970
logger.debug(" Key ID: %s", self.key_id)
342
# Uppercase and remove spaces from fingerprint for later
343
# comparison purposes with return value from the fingerprint()
344
# function
345
self.fingerprint = (config["fingerprint"].upper()
346
.replace(" ", ""))
971
347
logger.debug(" Fingerprint: %s", self.fingerprint)
972
self.created = settings.get("created",
973
datetime.datetime.utcnow())
974
975
# attributes specific for this server instance
348
if "secret" in config:
349
self.secret = config["secret"].decode("base64")
350
elif "secfile" in config:
351
with open(os.path.expanduser(os.path.expandvars
352
(config["secfile"])),
353
"rb") as secfile:
354
self.secret = secfile.read()
355
else:
356
raise TypeError("No secret or secfile for client %s"
357
% self.name)
358
self.host = config.get("host", "")
359
self.created = datetime.datetime.utcnow()
360
self.enabled = False
361
self.last_approval_request = None
362
self.last_enabled = None
363
self.last_checked_ok = None
364
self.timeout = string_to_delta(config["timeout"])
365
self.extended_timeout = string_to_delta(config
366
["extended_timeout"])
367
self.interval = string_to_delta(config["interval"])
368
self.disable_hook = disable_hook
976
369
self.checker = None
977
370
self.checker_initiator_tag = None
978
371
self.disable_initiator_tag = None
372
self.expires = None
979
373
self.checker_callback_tag = None
374
self.checker_command = config["checker"]
980
375
self.current_checker_command = None
981
self.approved = None
376
self.last_connect = None
377
self._approved = None
378
self.approved_by_default = config.get("approved_by_default",
379
True)
982
380
self.approvals_pending = 0
983
self.changedstate = multiprocessing_manager.Condition(
984
multiprocessing_manager.Lock())
985
self.client_structure = [attr
986
for attr in self.__dict__.keys()
987
if not attr.startswith("_")]
988
self.client_structure.append("client_structure")
989
990
for name, t in inspect.getmembers(
991
type(self), lambda obj: isinstance(obj, property)):
992
if not name.startswith("_"):
993
self.client_structure.append(name)
994
995
# Send notice to process children that client state has changed
381
self.approval_delay = string_to_delta(
382
config["approval_delay"])
383
self.approval_duration = string_to_delta(
384
config["approval_duration"])
385
self.changedstate = (multiprocessing_manager
386
.Condition(multiprocessing_manager
387
.Lock()))
388
996
389
def send_changedstate(self):
997
with self.changedstate:
998
self.changedstate.notify_all()
999
390
self.changedstate.acquire()
391
self.changedstate.notify_all()
392
self.changedstate.release()
393
1000
394
def enable(self):
1001
395
"""Start this client's checker and timeout hooks"""
1002
396
if getattr(self, "enabled", False):
1003
397
# Already enabled
1004
398
return
399
self.send_changedstate()
400
# Schedule a new checker to be started an 'interval' from now,
401
# and every interval from then on.
402
self.checker_initiator_tag = (gobject.timeout_add
403
(self.interval_milliseconds(),
404
self.start_checker))
405
# Schedule a disable() when 'timeout' has passed
1005
406
self.expires = datetime.datetime.utcnow() + self.timeout
407
self.disable_initiator_tag = (gobject.timeout_add
408
(self.timeout_milliseconds(),
409
self.disable))
1006
410
self.enabled = True
1007
411
self.last_enabled = datetime.datetime.utcnow()
1008
self.init_checker()
1009
self.send_changedstate()
1010
412
# Also start a new checker *right now*.
413
self.start_checker()
414
1011
415
def disable(self, quiet=True):
1012
416
"""Disable this client."""
1013
417
if not getattr(self, "enabled", False):
1014
418
return False
1015
419
if not quiet:
420
self.send_changedstate()
421
if not quiet:
1016
422
logger.info("Disabling client %s", self.name)
1017
if getattr(self, "disable_initiator_tag", None) is not None:
1018
GLib.source_remove(self.disable_initiator_tag)
423
if getattr(self, "disable_initiator_tag", False):
424
gobject.source_remove(self.disable_initiator_tag)
1019
425
self.disable_initiator_tag = None
1020
426
self.expires = None
1021
if getattr(self, "checker_initiator_tag", None) is not None:
1022
GLib.source_remove(self.checker_initiator_tag)
427
if getattr(self, "checker_initiator_tag", False):
428
gobject.source_remove(self.checker_initiator_tag)
1023
429
self.checker_initiator_tag = None
1024
430
self.stop_checker()
431
if self.disable_hook:
432
self.disable_hook(self)
1025
433
self.enabled = False
1026
if not quiet:
1027
self.send_changedstate()
1028
# Do not run this again if called by a GLib.timeout_add
434
# Do not run this again if called by a gobject.timeout_add
1029
435
return False
1030
436
1031
437
def __del__(self):
438
self.disable_hook = None
1032
439
self.disable()
1033
1034
def init_checker(self):
1035
# Schedule a new checker to be started an 'interval' from now,
1036
# and every interval from then on.
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)
1042
# Schedule a disable() when 'timeout' has passed
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)
1047
# Also start a new checker *right now*.
1048
self.start_checker()
1049
1050
def checker_callback(self, source, condition, connection,
1051
command):
440
441
def checker_callback(self, pid, condition, command):
1052
442
"""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
self.checker.join()
1057
443
self.checker_callback_tag = None
1058
444
self.checker = None
1059
1060
if returncode >= 0:
1061
self.last_checker_status = returncode
1062
self.last_checker_signal = None
1063
if self.last_checker_status == 0:
445
if os.WIFEXITED(condition):
446
exitstatus = os.WEXITSTATUS(condition)
447
if exitstatus == 0:
1064
448
logger.info("Checker for %(name)s succeeded",
1065
449
vars(self))
1066
450
self.checked_ok()
1067
451
else:
1068
logger.info("Checker for %(name)s failed", vars(self))
452
logger.info("Checker for %(name)s failed",
453
vars(self))
1069
454
else:
1070
self.last_checker_status = -1
1071
self.last_checker_signal = -returncode
1072
455
logger.warning("Checker for %(name)s crashed?",
1073
456
vars(self))
1074
return False
1075
1076
def checked_ok(self):
1077
"""Assert that the client has been seen, alive and well."""
1078
self.last_checked_ok = datetime.datetime.utcnow()
1079
self.last_checker_status = 0
1080
self.last_checker_signal = None
1081
self.bump_timeout()
1082
1083
def bump_timeout(self, timeout=None):
1084
"""Bump up the timeout for this client."""
457
458
def checked_ok(self, timeout=None):
459
"""Bump up the timeout for this client.
460
461
This should only be called when the client has been seen,
462
alive and well.
463
"""
1085
464
if timeout is None:
1086
465
timeout = self.timeout
466
self.last_checked_ok = datetime.datetime.utcnow()
1087
467
if self.disable_initiator_tag is not None:
1088
GLib.source_remove(self.disable_initiator_tag)
1089
self.disable_initiator_tag = None
468
gobject.source_remove(self.disable_initiator_tag)
1090
469
if getattr(self, "enabled", False):
1091
self.disable_initiator_tag = GLib.timeout_add(
1092
int(timeout.total_seconds() * 1000), self.disable)
470
self.disable_initiator_tag = (gobject.timeout_add
471
(_timedelta_to_milliseconds
472
(timeout), self.disable))
1093
473
self.expires = datetime.datetime.utcnow() + timeout
1094
474
1095
475
def need_approval(self):
1096
476
self.last_approval_request = datetime.datetime.utcnow()
1097
477
1098
478
def start_checker(self):
1099
479
"""Start a new checker subprocess if one is not running.
1100
480
1101
481
If a checker already exists, leave it running and do
1102
482
nothing."""
1103
483
# The reason for not killing a running checker is that if we
1104
# did that, and if a checker (for some reason) started running
1105
# slowly and taking more than 'interval' time, then the client
1106
# would inevitably timeout, since no checker would get a
1107
# chance to run to completion. If we instead leave running
484
# did that, then if a checker (for some reason) started
485
# running slowly and taking more than 'interval' time, the
486
# client would inevitably timeout, since no checker would get
487
# a chance to run to completion. If we instead leave running
1108
488
# checkers alone, the checker would have to take more time
1109
489
# than 'timeout' for the client to be disabled, which is as it
1110
490
# should be.
1111
1112
if self.checker is not None and not self.checker.is_alive():
1113
logger.warning("Checker was not alive; joining")
1114
self.checker.join()
1115
self.checker = None
491
492
# If a checker exists, make sure it is not a zombie
493
try:
494
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
495
except (AttributeError, OSError) as error:
496
if (isinstance(error, OSError)
497
and error.errno != errno.ECHILD):
498
raise error
499
else:
500
if pid:
501
logger.warning("Checker was a zombie")
502
gobject.source_remove(self.checker_callback_tag)
503
self.checker_callback(pid, status,
504
self.current_checker_command)
1116
505
# Start a new checker if needed
1117
506
if self.checker is None:
1118
# Escape attributes for the shell
1119
escaped_attrs = {
1120
attr: re.escape(str(getattr(self, attr)))
1121
for attr in self.runtime_expansions}
1122
507
try:
1123
command = self.checker_command % escaped_attrs
1124
except TypeError as error:
1125
logger.error('Could not format string "%s"',
1126
self.checker_command,
1127
exc_info=error)
1128
return True # Try again later
508
# In case checker_command has exactly one % operator
509
command = self.checker_command % self.host
510
except TypeError:
511
# Escape attributes for the shell
512
escaped_attrs = dict(
513
(attr,
514
re.escape(unicode(str(getattr(self, attr, "")),
515
errors=
516
'replace')))
517
for attr in
518
self.runtime_expansions)
519
520
try:
521
command = self.checker_command % escaped_attrs
522
except TypeError as error:
523
logger.error('Could not format string "%s":'
524
' %s', self.checker_command, error)
525
return True # Try again later
1129
526
self.current_checker_command = command
1130
logger.info("Starting checker %r for %s", command,
1131
self.name)
1132
# We don't need to redirect stdout and stderr, since
1133
# in normal mode, that is already done by daemon(),
1134
# and in debug mode we don't want to. (Stdin is
1135
# always replaced by /dev/null.)
1136
# The exception is when not debugging but nevertheless
1137
# running in the foreground; use the previously
1138
# created wnull.
1139
popen_args = {"close_fds": True,
1140
"shell": True,
1141
"cwd": "/"}
1142
if (not self.server_settings["debug"]
1143
and self.server_settings["foreground"]):
1144
popen_args.update({"stdout": wnull,
1145
"stderr": wnull})
1146
pipe = multiprocessing.Pipe(duplex=False)
1147
self.checker = multiprocessing.Process(
1148
target=call_pipe,
1149
args=(pipe[1], subprocess.call, command),
1150
kwargs=popen_args)
1151
self.checker.start()
1152
self.checker_callback_tag = GLib.io_add_watch(
1153
GLib.IOChannel.unix_new(pipe[0].fileno()),
1154
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1155
self.checker_callback, pipe[0], command)
1156
# Re-run this periodically if run by GLib.timeout_add
527
try:
528
logger.info("Starting checker %r for %s",
529
command, self.name)
530
# We don't need to redirect stdout and stderr, since
531
# in normal mode, that is already done by daemon(),
532
# and in debug mode we don't want to. (Stdin is
533
# always replaced by /dev/null.)
534
self.checker = subprocess.Popen(command,
535
close_fds=True,
536
shell=True, cwd="/")
537
self.checker_callback_tag = (gobject.child_watch_add
538
(self.checker.pid,
539
self.checker_callback,
540
data=command))
541
# The checker may have completed before the gobject
542
# watch was added. Check for this.
543
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
544
if pid:
545
gobject.source_remove(self.checker_callback_tag)
546
self.checker_callback(pid, status, command)
547
except OSError as error:
548
logger.error("Failed to start subprocess: %s",
549
error)
550
# Re-run this periodically if run by gobject.timeout_add
1157
551
return True
1158
552
1159
553
def stop_checker(self):
1160
554
"""Force the checker process, if any, to stop."""
1161
555
if self.checker_callback_tag:
1162
GLib.source_remove(self.checker_callback_tag)
556
gobject.source_remove(self.checker_callback_tag)
1163
557
self.checker_callback_tag = None
1164
558
if getattr(self, "checker", None) is None:
1165
559
return
1166
560
logger.debug("Stopping checker for %(name)s", vars(self))
1167
self.checker.terminate()
561
try:
562
os.kill(self.checker.pid, signal.SIGTERM)
563
#time.sleep(0.5)
564
#if self.checker.poll() is None:
565
# os.kill(self.checker.pid, signal.SIGKILL)
566
except OSError as error:
567
if error.errno != errno.ESRCH: # No such process
568
raise
1168
569
self.checker = None
1169
570
1170
571
1171
def dbus_service_property(dbus_interface,
1172
signature="v",
1173
access="readwrite",
1174
byte_arrays=False):
572
def dbus_service_property(dbus_interface, signature="v",
573
access="readwrite", byte_arrays=False):
1175
574
"""Decorators for marking methods of a DBusObjectWithProperties to
1176
575
become properties on the D-Bus.
1177
576
1178
577
The decorated method will be called with no arguments by "Get"
1179
578
and with one argument by "Set".
1180
579
1181
580
The parameters, where they are supported, are the same as
1182
581
dbus.service.method, except there is only "signature", since the
1183
582
type from Get() and the type sent to Set() is the same.
1186
585
# "Set" method, so we fail early here:
1187
586
if byte_arrays and signature != "ay":
1188
587
raise ValueError("Byte arrays not supported for non-'ay'"
1189
" signature {!r}".format(signature))
1190
588
" signature %r" % signature)
1191
589
def decorator(func):
1192
590
func._dbus_is_property = True
1193
591
func._dbus_interface = dbus_interface
1196
594
func._dbus_name = func.__name__
1197
595
if func._dbus_name.endswith("_dbus_property"):
1198
596
func._dbus_name = func._dbus_name[:-14]
1199
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1200
return func
1201
1202
return decorator
1203
1204
1205
def dbus_interface_annotations(dbus_interface):
1206
"""Decorator for marking functions returning interface annotations
1207
1208
Usage:
1209
1210
@dbus_interface_annotations("org.example.Interface")
1211
def _foo(self): # Function name does not matter
1212
return {"org.freedesktop.DBus.Deprecated": "true",
1213
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1214
"false"}
1215
"""
1216
1217
def decorator(func):
1218
func._dbus_is_interface = True
1219
func._dbus_interface = dbus_interface
1220
func._dbus_name = dbus_interface
1221
return func
1222
1223
return decorator
1224
1225
1226
def dbus_annotations(annotations):
1227
"""Decorator to annotate D-Bus methods, signals or properties
1228
Usage:
1229
1230
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1231
"org.freedesktop.DBus.Property."
1232
"EmitsChangedSignal": "false"})
1233
@dbus_service_property("org.example.Interface", signature="b",
1234
access="r")
1235
def Property_dbus_property(self):
1236
return dbus.Boolean(False)
1237
1238
See also the DBusObjectWithAnnotations class.
1239
"""
1240
1241
def decorator(func):
1242
func._dbus_annotations = annotations
1243
return func
1244
597
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
598
return func
1245
599
return decorator
1246
600
1247
601
1248
602
class DBusPropertyException(dbus.exceptions.DBusException):
1249
603
"""A base class for D-Bus property-related exceptions
1250
604
"""
1251
pass
605
def __unicode__(self):
606
return unicode(str(self))
1252
607
1253
608
1254
609
class DBusPropertyAccessException(DBusPropertyException):
1263
618
pass
1264
619
1265
620
1266
class DBusObjectWithAnnotations(dbus.service.Object):
1267
"""A D-Bus object with annotations.
1268
1269
Classes inheriting from this can use the dbus_annotations
1270
decorator to add annotations to methods or signals.
1271
"""
1272
1273
@staticmethod
1274
def _is_dbus_thing(thing):
1275
"""Returns a function testing if an attribute is a D-Bus thing
1276
1277
If called like _is_dbus_thing("method") it returns a function
1278
suitable for use as predicate to inspect.getmembers().
1279
"""
1280
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1281
False)
1282
1283
def _get_all_dbus_things(self, thing):
1284
"""Returns a generator of (name, attribute) pairs
1285
"""
1286
return ((getattr(athing.__get__(self), "_dbus_name", name),
1287
athing.__get__(self))
1288
for cls in self.__class__.__mro__
1289
for name, athing in
1290
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1291
1292
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1293
out_signature="s",
1294
path_keyword='object_path',
1295
connection_keyword='connection')
1296
def Introspect(self, object_path, connection):
1297
"""Overloading of standard D-Bus method.
1298
1299
Inserts annotation tags on methods and signals.
1300
"""
1301
xmlstring = dbus.service.Object.Introspect(self, object_path,
1302
connection)
1303
try:
1304
document = xml.dom.minidom.parseString(xmlstring)
1305
1306
for if_tag in document.getElementsByTagName("interface"):
1307
# Add annotation tags
1308
for typ in ("method", "signal"):
1309
for tag in if_tag.getElementsByTagName(typ):
1310
annots = dict()
1311
for name, prop in (self.
1312
_get_all_dbus_things(typ)):
1313
if (name == tag.getAttribute("name")
1314
and prop._dbus_interface
1315
== if_tag.getAttribute("name")):
1316
annots.update(getattr(
1317
prop, "_dbus_annotations", {}))
1318
for name, value in annots.items():
1319
ann_tag = document.createElement(
1320
"annotation")
1321
ann_tag.setAttribute("name", name)
1322
ann_tag.setAttribute("value", value)
1323
tag.appendChild(ann_tag)
1324
# Add interface annotation tags
1325
for annotation, value in dict(
1326
itertools.chain.from_iterable(
1327
annotations().items()
1328
for name, annotations
1329
in self._get_all_dbus_things("interface")
1330
if name == if_tag.getAttribute("name")
1331
)).items():
1332
ann_tag = document.createElement("annotation")
1333
ann_tag.setAttribute("name", annotation)
1334
ann_tag.setAttribute("value", value)
1335
if_tag.appendChild(ann_tag)
1336
# Fix argument name for the Introspect method itself
1337
if (if_tag.getAttribute("name")
1338
== dbus.INTROSPECTABLE_IFACE):
1339
for cn in if_tag.getElementsByTagName("method"):
1340
if cn.getAttribute("name") == "Introspect":
1341
for arg in cn.getElementsByTagName("arg"):
1342
if (arg.getAttribute("direction")
1343
== "out"):
1344
arg.setAttribute("name",
1345
"xml_data")
1346
xmlstring = document.toxml("utf-8")
1347
document.unlink()
1348
except (AttributeError, xml.dom.DOMException,
1349
xml.parsers.expat.ExpatError) as error:
1350
logger.error("Failed to override Introspection method",
1351
exc_info=error)
1352
return xmlstring
1353
1354
1355
class DBusObjectWithProperties(DBusObjectWithAnnotations):
621
class DBusObjectWithProperties(dbus.service.Object):
1356
622
"""A D-Bus object with properties.
1357
623
1358
624
Classes inheriting from this can use the dbus_service_property
1359
625
decorator to expose methods as D-Bus properties. It exposes the
1360
626
standard Get(), Set(), and GetAll() methods on the D-Bus.
1361
627
"""
1362
628
629
@staticmethod
630
def _is_dbus_property(obj):
631
return getattr(obj, "_dbus_is_property", False)
632
633
def _get_all_dbus_properties(self):
634
"""Returns a generator of (name, attribute) pairs
635
"""
636
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
637
for cls in self.__class__.__mro__
638
for name, prop in
639
inspect.getmembers(cls, self._is_dbus_property))
640
1363
641
def _get_dbus_property(self, interface_name, property_name):
1364
642
"""Returns a bound method if one exists which is a D-Bus
1365
643
property with the specified name and interface.
1366
644
"""
1367
for cls in self.__class__.__mro__:
1368
for name, value in inspect.getmembers(
1369
cls, self._is_dbus_thing("property")):
645
for cls in self.__class__.__mro__:
646
for name, value in (inspect.getmembers
647
(cls, self._is_dbus_property)):
1370
648
if (value._dbus_name == property_name
1371
649
and value._dbus_interface == interface_name):
1372
650
return value.__get__(self)
1373
651
1374
652
# No such property
1375
raise DBusPropertyNotFound("{}:{}.{}".format(
1376
self.dbus_object_path, interface_name, property_name))
1377
1378
@classmethod
1379
def _get_all_interface_names(cls):
1380
"""Get a sequence of all interfaces supported by an object"""
1381
return (name for name in set(getattr(getattr(x, attr),
1382
"_dbus_interface", None)
1383
for x in (inspect.getmro(cls))
1384
for attr in dir(x))
1385
if name is not None)
1386
1387
@dbus.service.method(dbus.PROPERTIES_IFACE,
1388
in_signature="ss",
653
raise DBusPropertyNotFound(self.dbus_object_path + ":"
654
+ interface_name + "."
655
+ property_name)
656
657
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1389
658
out_signature="v")
1390
659
def Get(self, interface_name, property_name):
1391
660
"""Standard D-Bus property Get() method, see D-Bus standard.
1397
666
if not hasattr(value, "variant_level"):
1398
667
return value
1399
668
return type(value)(value, variant_level=value.variant_level+1)
1400
669
1401
670
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1402
671
def Set(self, interface_name, property_name, value):
1403
672
"""Standard D-Bus property Set() method, see D-Bus standard.
1409
678
# The byte_arrays option is not supported yet on
1410
679
# signatures other than "ay".
1411
680
if prop._dbus_signature != "ay":
1412
raise ValueError("Byte arrays not supported for non-"
1413
"'ay' signature {!r}"
1414
.format(prop._dbus_signature))
1415
value = dbus.ByteArray(b''.join(chr(byte)
1416
for byte in value))
681
raise ValueError
682
value = dbus.ByteArray(''.join(unichr(byte)
683
for byte in value))
1417
684
prop(value)
1418
1419
@dbus.service.method(dbus.PROPERTIES_IFACE,
1420
in_signature="s",
685
686
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1421
687
out_signature="a{sv}")
1422
688
def GetAll(self, interface_name):
1423
689
"""Standard D-Bus property GetAll() method, see D-Bus
1424
690
standard.
1425
691
1426
692
Note: Will not include properties with access="write".
1427
693
"""
1428
properties = {}
1429
for name, prop in self._get_all_dbus_things("property"):
694
all = {}
695
for name, prop in self._get_all_dbus_properties():
1430
696
if (interface_name
1431
697
and interface_name != prop._dbus_interface):
1432
698
# Interface non-empty but did not match
1436
702
continue
1437
703
value = prop()
1438
704
if not hasattr(value, "variant_level"):
1439
properties[name] = value
705
all[name] = value
1440
706
continue
1441
properties[name] = type(value)(
1442
value, variant_level=value.variant_level + 1)
1443
return dbus.Dictionary(properties, signature="sv")
1444
1445
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1446
def PropertiesChanged(self, interface_name, changed_properties,
1447
invalidated_properties):
1448
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1449
standard.
1450
"""
1451
pass
1452
707
all[name] = type(value)(value, variant_level=
708
value.variant_level+1)
709
return dbus.Dictionary(all, signature="sv")
710
1453
711
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1454
712
out_signature="s",
1455
713
path_keyword='object_path',
1456
714
connection_keyword='connection')
1457
715
def Introspect(self, object_path, connection):
1458
"""Overloading of standard D-Bus method.
1459
1460
Inserts property tags and interface annotation tags.
716
"""Standard D-Bus method, overloaded to insert property tags.
1461
717
"""
1462
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1463
object_path,
1464
connection)
718
xmlstring = dbus.service.Object.Introspect(self, object_path,
719
connection)
1465
720
try:
1466
721
document = xml.dom.minidom.parseString(xmlstring)
1467
1468
722
def make_tag(document, name, prop):
1469
723
e = document.createElement("property")
1470
724
e.setAttribute("name", name)
1471
725
e.setAttribute("type", prop._dbus_signature)
1472
726
e.setAttribute("access", prop._dbus_access)
1473
727
return e
1474
1475
728
for if_tag in document.getElementsByTagName("interface"):
1476
# Add property tags
1477
729
for tag in (make_tag(document, name, prop)
1478
730
for name, prop
1479
in self._get_all_dbus_things("property")
731
in self._get_all_dbus_properties()
1480
732
if prop._dbus_interface
1481
733
== if_tag.getAttribute("name")):
1482
734
if_tag.appendChild(tag)
1483
# Add annotation tags for properties
1484
for tag in if_tag.getElementsByTagName("property"):
1485
annots = dict()
1486
for name, prop in self._get_all_dbus_things(
1487
"property"):
1488
if (name == tag.getAttribute("name")
1489
and prop._dbus_interface
1490
== if_tag.getAttribute("name")):
1491
annots.update(getattr(
1492
prop, "_dbus_annotations", {}))
1493
for name, value in annots.items():
1494
ann_tag = document.createElement(
1495
"annotation")
1496
ann_tag.setAttribute("name", name)
1497
ann_tag.setAttribute("value", value)
1498
tag.appendChild(ann_tag)
1499
735
# Add the names to the return values for the
1500
736
# "org.freedesktop.DBus.Properties" methods
1501
737
if (if_tag.getAttribute("name")
1516
752
except (AttributeError, xml.dom.DOMException,
1517
753
xml.parsers.expat.ExpatError) as error:
1518
754
logger.error("Failed to override Introspection method",
1519
exc_info=error)
1520
return xmlstring
1521
1522
1523
try:
1524
dbus.OBJECT_MANAGER_IFACE
1525
except AttributeError:
1526
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1527
1528
1529
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1530
"""A D-Bus object with an ObjectManager.
1531
1532
Classes inheriting from this exposes the standard
1533
GetManagedObjects call and the InterfacesAdded and
1534
InterfacesRemoved signals on the standard
1535
"org.freedesktop.DBus.ObjectManager" interface.
1536
1537
Note: No signals are sent automatically; they must be sent
1538
manually.
1539
"""
1540
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1541
out_signature="a{oa{sa{sv}}}")
1542
def GetManagedObjects(self):
1543
"""This function must be overridden"""
1544
raise NotImplementedError()
1545
1546
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1547
signature="oa{sa{sv}}")
1548
def InterfacesAdded(self, object_path, interfaces_and_properties):
1549
pass
1550
1551
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1552
def InterfacesRemoved(self, object_path, interfaces):
1553
pass
1554
1555
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1556
out_signature="s",
1557
path_keyword='object_path',
1558
connection_keyword='connection')
1559
def Introspect(self, object_path, connection):
1560
"""Overloading of standard D-Bus method.
1561
1562
Override return argument name of GetManagedObjects to be
1563
"objpath_interfaces_and_properties"
1564
"""
1565
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1566
object_path,
1567
connection)
1568
try:
1569
document = xml.dom.minidom.parseString(xmlstring)
1570
1571
for if_tag in document.getElementsByTagName("interface"):
1572
# Fix argument name for the GetManagedObjects method
1573
if (if_tag.getAttribute("name")
1574
== dbus.OBJECT_MANAGER_IFACE):
1575
for cn in if_tag.getElementsByTagName("method"):
1576
if (cn.getAttribute("name")
1577
== "GetManagedObjects"):
1578
for arg in cn.getElementsByTagName("arg"):
1579
if (arg.getAttribute("direction")
1580
== "out"):
1581
arg.setAttribute(
1582
"name",
1583
"objpath_interfaces"
1584
"_and_properties")
1585
xmlstring = document.toxml("utf-8")
1586
document.unlink()
1587
except (AttributeError, xml.dom.DOMException,
1588
xml.parsers.expat.ExpatError) as error:
1589
logger.error("Failed to override Introspection method",
1590
exc_info=error)
1591
return xmlstring
1592
1593
1594
def datetime_to_dbus(dt, variant_level=0):
755
error)
756
return xmlstring
757
758
759
def datetime_to_dbus (dt, variant_level=0):
1595
760
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1596
761
if dt is None:
1597
return dbus.String("", variant_level=variant_level)
1598
return dbus.String(dt.isoformat(), variant_level=variant_level)
1599
1600
1601
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1602
"""A class decorator; applied to a subclass of
1603
dbus.service.Object, it will add alternate D-Bus attributes with
1604
interface names according to the "alt_interface_names" mapping.
1605
Usage:
1606
1607
@alternate_dbus_interfaces({"org.example.Interface":
1608
"net.example.AlternateInterface"})
1609
class SampleDBusObject(dbus.service.Object):
1610
@dbus.service.method("org.example.Interface")
1611
def SampleDBusMethod():
1612
pass
1613
1614
The above "SampleDBusMethod" on "SampleDBusObject" will be
1615
reachable via two interfaces: "org.example.Interface" and
1616
"net.example.AlternateInterface", the latter of which will have
1617
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1618
"true", unless "deprecate" is passed with a False value.
1619
1620
This works for methods and signals, and also for D-Bus properties
1621
(from DBusObjectWithProperties) and interfaces (from the
1622
dbus_interface_annotations decorator).
762
return dbus.String("", variant_level = variant_level)
763
return dbus.String(dt.isoformat(),
764
variant_level=variant_level)
765
766
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
767
.__metaclass__):
768
"""Applied to an empty subclass of a D-Bus object, this metaclass
769
will add additional D-Bus attributes matching a certain pattern.
1623
770
"""
1624
1625
def wrapper(cls):
1626
for orig_interface_name, alt_interface_name in (
1627
alt_interface_names.items()):
1628
attr = {}
1629
interface_names = set()
1630
# Go though all attributes of the class
1631
for attrname, attribute in inspect.getmembers(cls):
771
def __new__(mcs, name, bases, attr):
772
# Go through all the base classes which could have D-Bus
773
# methods, signals, or properties in them
774
for base in (b for b in bases
775
if issubclass(b, dbus.service.Object)):
776
# Go though all attributes of the base class
777
for attrname, attribute in inspect.getmembers(base):
1632
778
# Ignore non-D-Bus attributes, and D-Bus attributes
1633
779
# with the wrong interface name
1634
780
if (not hasattr(attribute, "_dbus_interface")
1635
or not attribute._dbus_interface.startswith(
1636
orig_interface_name)):
781
or not attribute._dbus_interface
782
.startswith("se.recompile.Mandos")):
1637
783
continue
1638
784
# Create an alternate D-Bus interface name based on
1639
785
# the current name
1640
alt_interface = attribute._dbus_interface.replace(
1641
orig_interface_name, alt_interface_name)
1642
interface_names.add(alt_interface)
786
alt_interface = (attribute._dbus_interface
787
.replace("se.recompile.Mandos",
788
"se.bsnet.fukt.Mandos"))
1643
789
# Is this a D-Bus signal?
1644
790
if getattr(attribute, "_dbus_is_signal", False):
1645
# Extract the original non-method undecorated
1646
# function by black magic
1647
if sys.version_info.major == 2:
1648
nonmethod_func = (dict(
791
# Extract the original non-method function by
792
# black magic
793
nonmethod_func = (dict(
1649
794
zip(attribute.func_code.co_freevars,
1650
attribute.__closure__))
1651
["func"].cell_contents)
1652
else:
1653
nonmethod_func = (dict(
1654
zip(attribute.__code__.co_freevars,
1655
attribute.__closure__))
1656
["func"].cell_contents)
795
attribute.__closure__))["func"]
796
.cell_contents)
1657
797
# Create a new, but exactly alike, function
1658
798
# object, and decorate it to be a new D-Bus signal
1659
799
# with the alternate D-Bus interface name
1660
new_function = copy_function(nonmethod_func)
1661
new_function = (dbus.service.signal(
1662
alt_interface,
1663
attribute._dbus_signature)(new_function))
1664
# Copy annotations, if any
1665
try:
1666
new_function._dbus_annotations = dict(
1667
attribute._dbus_annotations)
1668
except AttributeError:
1669
pass
1670
800
new_function = (dbus.service.signal
801
(alt_interface,
802
attribute._dbus_signature)
803
(types.FunctionType(
804
nonmethod_func.func_code,
805
nonmethod_func.func_globals,
806
nonmethod_func.func_name,
807
nonmethod_func.func_defaults,
808
nonmethod_func.func_closure)))
1671
809
# Define a creator of a function to call both the
1672
# original and alternate functions, so both the
1673
# original and alternate signals gets sent when
1674
# the function is called
810
# old and new functions, so both the old and new
811
# signals gets sent when the function is called
1675
812
def fixscope(func1, func2):
1676
813
"""This function is a scope container to pass
1677
814
func1 and func2 to the "call_both" function
1678
815
outside of its arguments"""
1679
1680
@functools.wraps(func2)
1681
816
def call_both(*args, **kwargs):
1682
817
"""This function will emit two D-Bus
1683
818
signals by calling func1 and func2"""
1684
819
func1(*args, **kwargs)
1685
820
func2(*args, **kwargs)
1686
# Make wrapper function look like a D-Bus
1687
# signal
1688
for name, attr in inspect.getmembers(func2):
1689
if name.startswith("_dbus_"):
1690
setattr(call_both, name, attr)
1691
1692
821
return call_both
1693
822
# Create the "call_both" function and add it to
1694
823
# the class
1695
attr[attrname] = fixscope(attribute, new_function)
824
attr[attrname] = fixscope(attribute,
825
new_function)
1696
826
# Is this a D-Bus method?
1697
827
elif getattr(attribute, "_dbus_is_method", False):
1698
828
# Create a new, but exactly alike, function
1699
829
# object. Decorate it to be a new D-Bus method
1700
830
# with the alternate D-Bus interface name. Add it
1701
831
# to the class.
1702
attr[attrname] = (
1703
dbus.service.method(
1704
alt_interface,
1705
attribute._dbus_in_signature,
1706
attribute._dbus_out_signature)
1707
(copy_function(attribute)))
1708
# Copy annotations, if any
1709
try:
1710
attr[attrname]._dbus_annotations = dict(
1711
attribute._dbus_annotations)
1712
except AttributeError:
1713
pass
832
attr[attrname] = (dbus.service.method
833
(alt_interface,
834
attribute._dbus_in_signature,
835
attribute._dbus_out_signature)
836
(types.FunctionType
837
(attribute.func_code,
838
attribute.func_globals,
839
attribute.func_name,
840
attribute.func_defaults,
841
attribute.func_closure)))
1714
842
# Is this a D-Bus property?
1715
843
elif getattr(attribute, "_dbus_is_property", False):
1716
844
# Create a new, but exactly alike, function
1717
845
# object, and decorate it to be a new D-Bus
1718
846
# property with the alternate D-Bus interface
1719
847
# name. Add it to the class.
1720
attr[attrname] = (dbus_service_property(
1721
alt_interface, attribute._dbus_signature,
1722
attribute._dbus_access,
1723
attribute._dbus_get_args_options
1724
["byte_arrays"])
1725
(copy_function(attribute)))
1726
# Copy annotations, if any
1727
try:
1728
attr[attrname]._dbus_annotations = dict(
1729
attribute._dbus_annotations)
1730
except AttributeError:
1731
pass
1732
# Is this a D-Bus interface?
1733
elif getattr(attribute, "_dbus_is_interface", False):
1734
# Create a new, but exactly alike, function
1735
# object. Decorate it to be a new D-Bus interface
1736
# with the alternate D-Bus interface name. Add it
1737
# to the class.
1738
attr[attrname] = (
1739
dbus_interface_annotations(alt_interface)
1740
(copy_function(attribute)))
1741
if deprecate:
1742
# Deprecate all alternate interfaces
1743
iname = "_AlternateDBusNames_interface_annotation{}"
1744
for interface_name in interface_names:
1745
1746
@dbus_interface_annotations(interface_name)
1747
def func(self):
1748
return {"org.freedesktop.DBus.Deprecated":
1749
"true"}
1750
# Find an unused name
1751
for aname in (iname.format(i)
1752
for i in itertools.count()):
1753
if aname not in attr:
1754
attr[aname] = func
1755
break
1756
if interface_names:
1757
# Replace the class with a new subclass of it with
1758
# methods, signals, etc. as created above.
1759
if sys.version_info.major == 2:
1760
cls = type(b"{}Alternate".format(cls.__name__),
1761
(cls, ), attr)
1762
else:
1763
cls = type("{}Alternate".format(cls.__name__),
1764
(cls, ), attr)
1765
return cls
1766
1767
return wrapper
1768
1769
1770
@alternate_dbus_interfaces({"se.recompile.Mandos":
1771
"se.bsnet.fukt.Mandos"})
848
attr[attrname] = (dbus_service_property
849
(alt_interface,
850
attribute._dbus_signature,
851
attribute._dbus_access,
852
attribute
853
._dbus_get_args_options
854
["byte_arrays"])
855
(types.FunctionType
856
(attribute.func_code,
857
attribute.func_globals,
858
attribute.func_name,
859
attribute.func_defaults,
860
attribute.func_closure)))
861
return type.__new__(mcs, name, bases, attr)
862
1772
863
class ClientDBus(Client, DBusObjectWithProperties):
1773
864
"""A Client class using D-Bus
1774
865
1775
866
Attributes:
1776
867
dbus_object_path: dbus.ObjectPath
1777
868
bus: dbus.SystemBus()
1778
869
"""
1779
870
1780
871
runtime_expansions = (Client.runtime_expansions
1781
+ ("dbus_object_path", ))
1782
1783
_interface = "se.recompile.Mandos.Client"
1784
872
+ ("dbus_object_path",))
873
1785
874
# dbus.service.Object doesn't use super(), so we can't either.
1786
1787
def __init__(self, bus=None, *args, **kwargs):
875
876
def __init__(self, bus = None, *args, **kwargs):
877
self._approvals_pending = 0
1788
878
self.bus = bus
1789
879
Client.__init__(self, *args, **kwargs)
1790
880
# Only now, when this client is initialized, can it show up on
1791
881
# the D-Bus
1792
client_object_name = str(self.name).translate(
882
client_object_name = unicode(self.name).translate(
1793
883
{ord("."): ord("_"),
1794
884
ord("-"): ord("_")})
1795
self.dbus_object_path = dbus.ObjectPath(
1796
"/clients/" + client_object_name)
885
self.dbus_object_path = (dbus.ObjectPath
886
("/clients/" + client_object_name))
1797
887
DBusObjectWithProperties.__init__(self, self.bus,
1798
888
self.dbus_object_path)
1799
1800
def notifychangeproperty(transform_func, dbus_name,
1801
type_func=lambda x: x,
1802
variant_level=1,
1803
invalidate_only=False,
1804
_interface=_interface):
889
890
def notifychangeproperty(transform_func,
891
dbus_name, type_func=lambda x: x,
892
variant_level=1):
1805
893
""" Modify a variable so that it's a property which announces
1806
894
its changes to DBus.
1807
895
1812
900
to the D-Bus. Default: no transform
1813
901
variant_level: D-Bus variant level. Default: 1
1814
902
"""
1815
attrname = "_{}".format(dbus_name)
1816
903
attrname = "_{0}".format(dbus_name)
1817
904
def setter(self, value):
1818
905
if hasattr(self, "dbus_object_path"):
1819
906
if (not hasattr(self, attrname) or
1820
907
type_func(getattr(self, attrname, None))
1821
908
!= type_func(value)):
1822
if invalidate_only:
1823
self.PropertiesChanged(
1824
_interface, dbus.Dictionary(),
1825
dbus.Array((dbus_name, )))
1826
else:
1827
dbus_value = transform_func(
1828
type_func(value),
1829
variant_level=variant_level)
1830
self.PropertyChanged(dbus.String(dbus_name),
1831
dbus_value)
1832
self.PropertiesChanged(
1833
_interface,
1834
dbus.Dictionary({dbus.String(dbus_name):
1835
dbus_value}),
1836
dbus.Array())
909
dbus_value = transform_func(type_func(value),
910
variant_level
911
=variant_level)
912
self.PropertyChanged(dbus.String(dbus_name),
913
dbus_value)
1837
914
setattr(self, attrname, value)
1838
915
1839
916
return property(lambda self: getattr(self, attrname), setter)
1840
917
918
1841
919
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1842
920
approvals_pending = notifychangeproperty(dbus.Boolean,
1843
921
"ApprovalPending",
1844
type_func=bool)
922
type_func = bool)
1845
923
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1846
924
last_enabled = notifychangeproperty(datetime_to_dbus,
1847
925
"LastEnabled")
1848
checker = notifychangeproperty(
1849
dbus.Boolean, "CheckerRunning",
1850
type_func=lambda checker: checker is not None)
926
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
927
type_func = lambda checker:
928
checker is not None)
1851
929
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1852
930
"LastCheckedOK")
1853
last_checker_status = notifychangeproperty(dbus.Int16,
1854
"LastCheckerStatus")
1855
931
last_approval_request = notifychangeproperty(
1856
932
datetime_to_dbus, "LastApprovalRequest")
1857
933
approved_by_default = notifychangeproperty(dbus.Boolean,
1858
934
"ApprovedByDefault")
1859
approval_delay = notifychangeproperty(
1860
dbus.UInt64, "ApprovalDelay",
1861
type_func=lambda td: td.total_seconds() * 1000)
935
approval_delay = notifychangeproperty(dbus.UInt16,
936
"ApprovalDelay",
937
type_func =
938
_timedelta_to_milliseconds)
1862
939
approval_duration = notifychangeproperty(
1863
dbus.UInt64, "ApprovalDuration",
1864
type_func=lambda td: td.total_seconds() * 1000)
940
dbus.UInt16, "ApprovalDuration",
941
type_func = _timedelta_to_milliseconds)
1865
942
host = notifychangeproperty(dbus.String, "Host")
1866
timeout = notifychangeproperty(
1867
dbus.UInt64, "Timeout",
1868
type_func=lambda td: td.total_seconds() * 1000)
943
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
944
type_func =
945
_timedelta_to_milliseconds)
1869
946
extended_timeout = notifychangeproperty(
1870
dbus.UInt64, "ExtendedTimeout",
1871
type_func=lambda td: td.total_seconds() * 1000)
1872
interval = notifychangeproperty(
1873
dbus.UInt64, "Interval",
1874
type_func=lambda td: td.total_seconds() * 1000)
947
dbus.UInt16, "ExtendedTimeout",
948
type_func = _timedelta_to_milliseconds)
949
interval = notifychangeproperty(dbus.UInt16,
950
"Interval",
951
type_func =
952
_timedelta_to_milliseconds)
1875
953
checker_command = notifychangeproperty(dbus.String, "Checker")
1876
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1877
invalidate_only=True)
1878
954
1879
955
del notifychangeproperty
1880
956
1881
957
def __del__(self, *args, **kwargs):
1882
958
try:
1883
959
self.remove_from_connection()
1886
962
if hasattr(DBusObjectWithProperties, "__del__"):
1887
963
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1888
964
Client.__del__(self, *args, **kwargs)
1889
1890
def checker_callback(self, source, condition,
1891
connection, command, *args, **kwargs):
1892
ret = Client.checker_callback(self, source, condition,
1893
connection, command, *args,
1894
**kwargs)
1895
exitstatus = self.last_checker_status
1896
if exitstatus >= 0:
965
966
def checker_callback(self, pid, condition, command,
967
*args, **kwargs):
968
self.checker_callback_tag = None
969
self.checker = None
970
if os.WIFEXITED(condition):
971
exitstatus = os.WEXITSTATUS(condition)
1897
972
# Emit D-Bus signal
1898
973
self.CheckerCompleted(dbus.Int16(exitstatus),
1899
# This is specific to GNU libC
1900
dbus.Int64(exitstatus << 8),
974
dbus.Int64(condition),
1901
975
dbus.String(command))
1902
976
else:
1903
977
# Emit D-Bus signal
1904
978
self.CheckerCompleted(dbus.Int16(-1),
1905
dbus.Int64(
1906
# This is specific to GNU libC
1907
(exitstatus << 8)
1908
| self.last_checker_signal),
979
dbus.Int64(condition),
1909
980
dbus.String(command))
1910
return ret
1911
981
982
return Client.checker_callback(self, pid, condition, command,
983
*args, **kwargs)
984
1912
985
def start_checker(self, *args, **kwargs):
1913
old_checker_pid = getattr(self.checker, "pid", None)
986
old_checker = self.checker
987
if self.checker is not None:
988
old_checker_pid = self.checker.pid
989
else:
990
old_checker_pid = None
1914
991
r = Client.start_checker(self, *args, **kwargs)
1915
992
# Only if new checker process was started
1916
993
if (self.checker is not None
1918
995
# Emit D-Bus signal
1919
996
self.CheckerStarted(self.current_checker_command)
1920
997
return r
1921
998
1922
999
def _reset_approved(self):
1923
self.approved = None
1000
self._approved = None
1924
1001
return False
1925
1002
1926
1003
def approve(self, value=True):
1927
self.approved = value
1928
GLib.timeout_add(int(self.approval_duration.total_seconds()
1929
* 1000), self._reset_approved)
1930
1004
self.send_changedstate()
1931
1932
# D-Bus methods, signals & properties
1933
1934
# Interfaces
1935
1936
# Signals
1937
1005
self._approved = value
1006
gobject.timeout_add(_timedelta_to_milliseconds
1007
(self.approval_duration),
1008
self._reset_approved)
1009
1010
1011
## D-Bus methods, signals & properties
1012
_interface = "se.recompile.Mandos.Client"
1013
1014
## Signals
1015
1938
1016
# CheckerCompleted - signal
1939
1017
@dbus.service.signal(_interface, signature="nxs")
1940
1018
def CheckerCompleted(self, exitcode, waitstatus, command):
1941
1019
"D-Bus signal"
1942
1020
pass
1943
1021
1944
1022
# CheckerStarted - signal
1945
1023
@dbus.service.signal(_interface, signature="s")
1946
1024
def CheckerStarted(self, command):
1947
1025
"D-Bus signal"
1948
1026
pass
1949
1027
1950
1028
# PropertyChanged - signal
1951
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1952
1029
@dbus.service.signal(_interface, signature="sv")
1953
1030
def PropertyChanged(self, property, value):
1954
1031
"D-Bus signal"
1955
1032
pass
1956
1033
1957
1034
# GotSecret - signal
1958
1035
@dbus.service.signal(_interface)
1959
1036
def GotSecret(self):
1962
1039
server to mandos-client
1963
1040
"""
1964
1041
pass
1965
1042
1966
1043
# Rejected - signal
1967
1044
@dbus.service.signal(_interface, signature="s")
1968
1045
def Rejected(self, reason):
1969
1046
"D-Bus signal"
1970
1047
pass
1971
1048
1972
1049
# NeedApproval - signal
1973
1050
@dbus.service.signal(_interface, signature="tb")
1974
1051
def NeedApproval(self, timeout, default):
1975
1052
"D-Bus signal"
1976
1053
return self.need_approval()
1977
1978
# Methods
1979
1054
1055
## Methods
1056
1980
1057
# Approve - method
1981
1058
@dbus.service.method(_interface, in_signature="b")
1982
1059
def Approve(self, value):
1983
1060
self.approve(value)
1984
1061
1985
1062
# CheckedOK - method
1986
1063
@dbus.service.method(_interface)
1987
1064
def CheckedOK(self):
1988
1065
self.checked_ok()
1989
1066
1990
1067
# Enable - method
1991
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1992
1068
@dbus.service.method(_interface)
1993
1069
def Enable(self):
1994
1070
"D-Bus method"
1995
1071
self.enable()
1996
1072
1997
1073
# StartChecker - method
1998
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1999
1074
@dbus.service.method(_interface)
2000
1075
def StartChecker(self):
2001
1076
"D-Bus method"
2002
1077
self.start_checker()
2003
1078
2004
1079
# Disable - method
2005
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2006
1080
@dbus.service.method(_interface)
2007
1081
def Disable(self):
2008
1082
"D-Bus method"
2009
1083
self.disable()
2010
1084
2011
1085
# StopChecker - method
2012
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2013
1086
@dbus.service.method(_interface)
2014
1087
def StopChecker(self):
2015
1088
self.stop_checker()
2016
2017
# Properties
2018
1089
1090
## Properties
1091
2019
1092
# ApprovalPending - property
2020
1093
@dbus_service_property(_interface, signature="b", access="read")
2021
1094
def ApprovalPending_dbus_property(self):
2022
1095
return dbus.Boolean(bool(self.approvals_pending))
2023
1096
2024
1097
# ApprovedByDefault - property
2025
@dbus_service_property(_interface,
2026
signature="b",
1098
@dbus_service_property(_interface, signature="b",
2027
1099
access="readwrite")
2028
1100
def ApprovedByDefault_dbus_property(self, value=None):
2029
1101
if value is None: # get
2030
1102
return dbus.Boolean(self.approved_by_default)
2031
1103
self.approved_by_default = bool(value)
2032
1104
2033
1105
# ApprovalDelay - property
2034
@dbus_service_property(_interface,
2035
signature="t",
1106
@dbus_service_property(_interface, signature="t",
2036
1107
access="readwrite")
2037
1108
def ApprovalDelay_dbus_property(self, value=None):
2038
1109
if value is None: # get
2039
return dbus.UInt64(self.approval_delay.total_seconds()
2040
* 1000)
1110
return dbus.UInt64(self.approval_delay_milliseconds())
2041
1111
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2042
1112
2043
1113
# ApprovalDuration - property
2044
@dbus_service_property(_interface,
2045
signature="t",
1114
@dbus_service_property(_interface, signature="t",
2046
1115
access="readwrite")
2047
1116
def ApprovalDuration_dbus_property(self, value=None):
2048
1117
if value is None: # get
2049
return dbus.UInt64(self.approval_duration.total_seconds()
2050
* 1000)
1118
return dbus.UInt64(_timedelta_to_milliseconds(
1119
self.approval_duration))
2051
1120
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2052
1121
2053
1122
# Name - property
2054
@dbus_annotations(
2055
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2056
1123
@dbus_service_property(_interface, signature="s", access="read")
2057
1124
def Name_dbus_property(self):
2058
1125
return dbus.String(self.name)
2059
2060
# KeyID - property
2061
@dbus_annotations(
2062
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2063
@dbus_service_property(_interface, signature="s", access="read")
2064
def KeyID_dbus_property(self):
2065
return dbus.String(self.key_id)
2066
1126
2067
1127
# Fingerprint - property
2068
@dbus_annotations(
2069
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2070
1128
@dbus_service_property(_interface, signature="s", access="read")
2071
1129
def Fingerprint_dbus_property(self):
2072
1130
return dbus.String(self.fingerprint)
2073
1131
2074
1132
# Host - property
2075
@dbus_service_property(_interface,
2076
signature="s",
1133
@dbus_service_property(_interface, signature="s",
2077
1134
access="readwrite")
2078
1135
def Host_dbus_property(self, value=None):
2079
1136
if value is None: # get
2080
1137
return dbus.String(self.host)
2081
self.host = str(value)
2082
1138
self.host = value
1139
2083
1140
# Created - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2086
1141
@dbus_service_property(_interface, signature="s", access="read")
2087
1142
def Created_dbus_property(self):
2088
return datetime_to_dbus(self.created)
2089
1143
return dbus.String(datetime_to_dbus(self.created))
1144
2090
1145
# LastEnabled - property
2091
1146
@dbus_service_property(_interface, signature="s", access="read")
2092
1147
def LastEnabled_dbus_property(self):
2093
1148
return datetime_to_dbus(self.last_enabled)
2094
1149
2095
1150
# Enabled - property
2096
@dbus_service_property(_interface,
2097
signature="b",
1151
@dbus_service_property(_interface, signature="b",
2098
1152
access="readwrite")
2099
1153
def Enabled_dbus_property(self, value=None):
2100
1154
if value is None: # get
2103
1157
self.enable()
2104
1158
else:
2105
1159
self.disable()
2106
1160
2107
1161
# LastCheckedOK - property
2108
@dbus_service_property(_interface,
2109
signature="s",
1162
@dbus_service_property(_interface, signature="s",
2110
1163
access="readwrite")
2111
1164
def LastCheckedOK_dbus_property(self, value=None):
2112
1165
if value is not None:
2113
1166
self.checked_ok()
2114
1167
return
2115
1168
return datetime_to_dbus(self.last_checked_ok)
2116
2117
# LastCheckerStatus - property
2118
@dbus_service_property(_interface, signature="n", access="read")
2119
def LastCheckerStatus_dbus_property(self):
2120
return dbus.Int16(self.last_checker_status)
2121
1169
2122
1170
# Expires - property
2123
1171
@dbus_service_property(_interface, signature="s", access="read")
2124
1172
def Expires_dbus_property(self):
2125
1173
return datetime_to_dbus(self.expires)
2126
1174
2127
1175
# LastApprovalRequest - property
2128
1176
@dbus_service_property(_interface, signature="s", access="read")
2129
1177
def LastApprovalRequest_dbus_property(self):
2130
1178
return datetime_to_dbus(self.last_approval_request)
2131
1179
2132
1180
# Timeout - property
2133
@dbus_service_property(_interface,
2134
signature="t",
1181
@dbus_service_property(_interface, signature="t",
2135
1182
access="readwrite")
2136
1183
def Timeout_dbus_property(self, value=None):
2137
1184
if value is None: # get
2138
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2139
old_timeout = self.timeout
1185
return dbus.UInt64(self.timeout_milliseconds())
2140
1186
self.timeout = datetime.timedelta(0, 0, 0, value)
2141
# Reschedule disabling
2142
if self.enabled:
2143
now = datetime.datetime.utcnow()
2144
self.expires += self.timeout - old_timeout
2145
if self.expires <= now:
2146
# The timeout has passed
2147
self.disable()
2148
else:
2149
if (getattr(self, "disable_initiator_tag", None)
2150
is None):
2151
return
2152
GLib.source_remove(self.disable_initiator_tag)
2153
self.disable_initiator_tag = GLib.timeout_add(
2154
int((self.expires - now).total_seconds() * 1000),
2155
self.disable)
2156
1187
if getattr(self, "disable_initiator_tag", None) is None:
1188
return
1189
# Reschedule timeout
1190
gobject.source_remove(self.disable_initiator_tag)
1191
self.disable_initiator_tag = None
1192
self.expires = None
1193
time_to_die = _timedelta_to_milliseconds((self
1194
.last_checked_ok
1195
+ self.timeout)
1196
- datetime.datetime
1197
.utcnow())
1198
if time_to_die <= 0:
1199
# The timeout has passed
1200
self.disable()
1201
else:
1202
self.expires = (datetime.datetime.utcnow()
1203
+ datetime.timedelta(milliseconds =
1204
time_to_die))
1205
self.disable_initiator_tag = (gobject.timeout_add
1206
(time_to_die, self.disable))
1207
2157
1208
# ExtendedTimeout - property
2158
@dbus_service_property(_interface,
2159
signature="t",
1209
@dbus_service_property(_interface, signature="t",
2160
1210
access="readwrite")
2161
1211
def ExtendedTimeout_dbus_property(self, value=None):
2162
1212
if value is None: # get
2163
return dbus.UInt64(self.extended_timeout.total_seconds()
2164
* 1000)
1213
return dbus.UInt64(self.extended_timeout_milliseconds())
2165
1214
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2166
1215
2167
1216
# Interval - property
2168
@dbus_service_property(_interface,
2169
signature="t",
1217
@dbus_service_property(_interface, signature="t",
2170
1218
access="readwrite")
2171
1219
def Interval_dbus_property(self, value=None):
2172
1220
if value is None: # get
2173
return dbus.UInt64(self.interval.total_seconds() * 1000)
1221
return dbus.UInt64(self.interval_milliseconds())
2174
1222
self.interval = datetime.timedelta(0, 0, 0, value)
2175
1223
if getattr(self, "checker_initiator_tag", None) is None:
2176
1224
return
2177
if self.enabled:
2178
# Reschedule checker run
2179
GLib.source_remove(self.checker_initiator_tag)
2180
self.checker_initiator_tag = GLib.timeout_add(
2181
value, self.start_checker)
2182
self.start_checker() # Start one now, too
2183
1225
# Reschedule checker run
1226
gobject.source_remove(self.checker_initiator_tag)
1227
self.checker_initiator_tag = (gobject.timeout_add
1228
(value, self.start_checker))
1229
self.start_checker() # Start one now, too
1230
2184
1231
# Checker - property
2185
@dbus_service_property(_interface,
2186
signature="s",
1232
@dbus_service_property(_interface, signature="s",
2187
1233
access="readwrite")
2188
1234
def Checker_dbus_property(self, value=None):
2189
1235
if value is None: # get
2190
1236
return dbus.String(self.checker_command)
2191
self.checker_command = str(value)
2192
1237
self.checker_command = value
1238
2193
1239
# CheckerRunning - property
2194
@dbus_service_property(_interface,
2195
signature="b",
1240
@dbus_service_property(_interface, signature="b",
2196
1241
access="readwrite")
2197
1242
def CheckerRunning_dbus_property(self, value=None):
2198
1243
if value is None: # get
2201
1246
self.start_checker()
2202
1247
else:
2203
1248
self.stop_checker()
2204
1249
2205
1250
# ObjectPath - property
2206
@dbus_annotations(
2207
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2208
"org.freedesktop.DBus.Deprecated": "true"})
2209
1251
@dbus_service_property(_interface, signature="o", access="read")
2210
1252
def ObjectPath_dbus_property(self):
2211
return self.dbus_object_path # is already a dbus.ObjectPath
2212
1253
return self.dbus_object_path # is already a dbus.ObjectPath
1254
2213
1255
# Secret = property
2214
@dbus_annotations(
2215
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2216
"invalidates"})
2217
@dbus_service_property(_interface,
2218
signature="ay",
2219
access="write",
2220
byte_arrays=True)
1256
@dbus_service_property(_interface, signature="ay",
1257
access="write", byte_arrays=True)
2221
1258
def Secret_dbus_property(self, value):
2222
self.secret = bytes(value)
2223
1259
self.secret = str(value)
1260
2224
1261
del _interface
2225
1262
2226
1263
2227
class ProxyClient:
2228
def __init__(self, child_pipe, key_id, fpr, address):
1264
class ProxyClient(object):
1265
def __init__(self, child_pipe, fpr, address):
2229
1266
self._pipe = child_pipe
2230
self._pipe.send(('init', key_id, fpr, address))
1267
self._pipe.send(('init', fpr, address))
2231
1268
if not self._pipe.recv():
2232
raise KeyError(key_id or fpr)
2233
1269
raise KeyError()
1270
2234
1271
def __getattribute__(self, name):
2235
if name == '_pipe':
1272
if(name == '_pipe'):
2236
1273
return super(ProxyClient, self).__getattribute__(name)
2237
1274
self._pipe.send(('getattr', name))
2238
1275
data = self._pipe.recv()
2239
1276
if data[0] == 'data':
2240
1277
return data[1]
2241
1278
if data[0] == 'function':
2242
2243
1279
def func(*args, **kwargs):
2244
1280
self._pipe.send(('funcall', name, args, kwargs))
2245
1281
return self._pipe.recv()[1]
2246
2247
1282
return func
2248
1283
2249
1284
def __setattr__(self, name, value):
2250
if name == '_pipe':
1285
if(name == '_pipe'):
2251
1286
return super(ProxyClient, self).__setattr__(name, value)
2252
1287
self._pipe.send(('setattr', name, value))
2253
1288
1289
class ClientDBusTransitional(ClientDBus):
1290
__metaclass__ = AlternateDBusNamesMetaclass
2254
1291
2255
1292
class ClientHandler(socketserver.BaseRequestHandler, object):
2256
1293
"""A class to handle client connections.
2257
1294
2258
1295
Instantiated once for each connection to handle it.
2259
1296
Note: This will run in its own forked process."""
2260
1297
2261
1298
def handle(self):
2262
1299
with contextlib.closing(self.server.child_pipe) as child_pipe:
2263
1300
logger.info("TCP connection from: %s",
2264
str(self.client_address))
1301
unicode(self.client_address))
2265
1302
logger.debug("Pipe FD: %d",
2266
1303
self.server.child_pipe.fileno())
2267
2268
session = gnutls.ClientSession(self.request)
2269
2270
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2271
# "+AES-256-CBC", "+SHA1",
2272
# "+COMP-NULL", "+CTYPE-OPENPGP",
2273
# "+DHE-DSS"))
1304
1305
session = (gnutls.connection
1306
.ClientSession(self.request,
1307
gnutls.connection
1308
.X509Credentials()))
1309
1310
# Note: gnutls.connection.X509Credentials is really a
1311
# generic GnuTLS certificate credentials object so long as
1312
# no X.509 keys are added to it. Therefore, we can use it
1313
# here despite using OpenPGP certificates.
1314
1315
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1316
# "+AES-256-CBC", "+SHA1",
1317
# "+COMP-NULL", "+CTYPE-OPENPGP",
1318
# "+DHE-DSS"))
2274
1319
# Use a fallback default, since this MUST be set.
2275
1320
priority = self.server.gnutls_priority
2276
1321
if priority is None:
2277
1322
priority = "NORMAL"
2278
gnutls.priority_set_direct(session._c_object,
2279
priority.encode("utf-8"),
2280
None)
2281
1323
(gnutls.library.functions
1324
.gnutls_priority_set_direct(session._c_object,
1325
priority, None))
1326
2282
1327
# Start communication using the Mandos protocol
2283
1328
# Get protocol number
2284
1329
line = self.request.makefile().readline()
2285
1330
logger.debug("Protocol version: %r", line)
2286
1331
try:
2287
1332
if int(line.strip().split()[0]) > 1:
2288
raise RuntimeError(line)
1333
raise RuntimeError
2289
1334
except (ValueError, IndexError, RuntimeError) as error:
2290
1335
logger.error("Unknown protocol version: %s", error)
2291
1336
return
2292
1337
2293
1338
# Start GnuTLS connection
2294
1339
try:
2295
1340
session.handshake()
2296
except gnutls.Error as error:
1341
except gnutls.errors.GNUTLSError as error:
2297
1342
logger.warning("Handshake failed: %s", error)
2298
1343
# Do not run session.bye() here: the session is not
2299
1344
# established. Just abandon the request.
2300
1345
return
2301
1346
logger.debug("Handshake succeeded")
2302
1347
2303
1348
approval_required = False
2304
1349
try:
2305
if gnutls.has_rawpk:
2306
fpr = b""
2307
try:
2308
key_id = self.key_id(
2309
self.peer_certificate(session))
2310
except (TypeError, gnutls.Error) as error:
2311
logger.warning("Bad certificate: %s", error)
2312
return
2313
logger.debug("Key ID: %s", key_id)
2314
2315
else:
2316
key_id = b""
2317
try:
2318
fpr = self.fingerprint(
2319
self.peer_certificate(session))
2320
except (TypeError, gnutls.Error) as error:
2321
logger.warning("Bad certificate: %s", error)
2322
return
2323
logger.debug("Fingerprint: %s", fpr)
2324
2325
try:
2326
client = ProxyClient(child_pipe, key_id, fpr,
1350
try:
1351
fpr = self.fingerprint(self.peer_certificate
1352
(session))
1353
except (TypeError,
1354
gnutls.errors.GNUTLSError) as error:
1355
logger.warning("Bad certificate: %s", error)
1356
return
1357
logger.debug("Fingerprint: %s", fpr)
1358
1359
try:
1360
client = ProxyClient(child_pipe, fpr,
2327
1361
self.client_address)
2328
1362
except KeyError:
2329
1363
return
2330
1364
2331
1365
if client.approval_delay:
2332
1366
delay = client.approval_delay
2333
1367
client.approvals_pending += 1
2334
1368
approval_required = True
2335
1369
2336
1370
while True:
2337
1371
if not client.enabled:
2338
1372
logger.info("Client %s is disabled",
2339
client.name)
1373
client.name)
2340
1374
if self.server.use_dbus:
2341
1375
# Emit D-Bus signal
2342
1376
client.Rejected("Disabled")
2343
1377
return
2344
2345
if client.approved or not client.approval_delay:
2346
# We are approved or approval is disabled
1378
1379
if client._approved or not client.approval_delay:
1380
#We are approved or approval is disabled
2347
1381
break
2348
elif client.approved is None:
1382
elif client._approved is None:
2349
1383
logger.info("Client %s needs approval",
2350
1384
client.name)
2351
1385
if self.server.use_dbus:
2352
1386
# Emit D-Bus signal
2353
1387
client.NeedApproval(
2354
client.approval_delay.total_seconds()
2355
* 1000, client.approved_by_default)
1388
client.approval_delay_milliseconds(),
1389
client.approved_by_default)
2356
1390
else:
2357
1391
logger.warning("Client %s was not approved",
2358
1392
client.name)
2360
1394
# Emit D-Bus signal
2361
1395
client.Rejected("Denied")
2362
1396
return
2363
2364
# wait until timeout or approved
1397
1398
#wait until timeout or approved
2365
1399
time = datetime.datetime.now()
2366
1400
client.changedstate.acquire()
2367
client.changedstate.wait(delay.total_seconds())
1401
(client.changedstate.wait
1402
(float(client._timedelta_to_milliseconds(delay)
1403
/ 1000)))
2368
1404
client.changedstate.release()
2369
1405
time2 = datetime.datetime.now()
2370
1406
if (time2 - time) >= delay:
2380
1416
break
2381
1417
else:
2382
1418
delay -= time2 - time
2383
2384
try:
2385
session.send(client.secret)
2386
except gnutls.Error as error:
2387
logger.warning("gnutls send failed",
2388
exc_info=error)
2389
return
2390
1419
1420
sent_size = 0
1421
while sent_size < len(client.secret):
1422
try:
1423
sent = session.send(client.secret[sent_size:])
1424
except gnutls.errors.GNUTLSError as error:
1425
logger.warning("gnutls send failed")
1426
return
1427
logger.debug("Sent: %d, remaining: %d",
1428
sent, len(client.secret)
1429
- (sent_size + sent))
1430
sent_size += sent
1431
2391
1432
logger.info("Sending secret to %s", client.name)
2392
1433
# bump the timeout using extended_timeout
2393
client.bump_timeout(client.extended_timeout)
1434
client.checked_ok(client.extended_timeout)
2394
1435
if self.server.use_dbus:
2395
1436
# Emit D-Bus signal
2396
1437
client.GotSecret()
2397
1438
2398
1439
finally:
2399
1440
if approval_required:
2400
1441
client.approvals_pending -= 1
2401
1442
try:
2402
1443
session.bye()
2403
except gnutls.Error as error:
2404
logger.warning("GnuTLS bye failed",
2405
exc_info=error)
2406
1444
except gnutls.errors.GNUTLSError as error:
1445
logger.warning("GnuTLS bye failed")
1446
2407
1447
@staticmethod
2408
1448
def peer_certificate(session):
2409
"Return the peer's certificate as a bytestring"
2410
try:
2411
cert_type = gnutls.certificate_type_get2(session._c_object,
2412
gnutls.CTYPE_PEERS)
2413
except AttributeError:
2414
cert_type = gnutls.certificate_type_get(session._c_object)
2415
if gnutls.has_rawpk:
2416
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2417
else:
2418
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2419
# If not a valid certificate type...
2420
if cert_type not in valid_cert_types:
2421
logger.info("Cert type %r not in %r", cert_type,
2422
valid_cert_types)
2423
# ...return invalid data
2424
return b""
1449
"Return the peer's OpenPGP certificate as a bytestring"
1450
# If not an OpenPGP certificate...
1451
if (gnutls.library.functions
1452
.gnutls_certificate_type_get(session._c_object)
1453
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1454
# ...do the normal thing
1455
return session.peer_certificate
2425
1456
list_size = ctypes.c_uint(1)
2426
cert_list = (gnutls.certificate_get_peers
1457
cert_list = (gnutls.library.functions
1458
.gnutls_certificate_get_peers
2427
1459
(session._c_object, ctypes.byref(list_size)))
2428
1460
if not bool(cert_list) and list_size.value != 0:
2429
raise gnutls.Error("error getting peer certificate")
1461
raise gnutls.errors.GNUTLSError("error getting peer"
1462
" certificate")
2430
1463
if list_size.value == 0:
2431
1464
return None
2432
1465
cert = cert_list[0]
2433
1466
return ctypes.string_at(cert.data, cert.size)
2434
2435
@staticmethod
2436
def key_id(certificate):
2437
"Convert a certificate bytestring to a hexdigit key ID"
2438
# New GnuTLS "datum" with the public key
2439
datum = gnutls.datum_t(
2440
ctypes.cast(ctypes.c_char_p(certificate),
2441
ctypes.POINTER(ctypes.c_ubyte)),
2442
ctypes.c_uint(len(certificate)))
2443
# XXX all these need to be created in the gnutls "module"
2444
# New empty GnuTLS certificate
2445
pubkey = gnutls.pubkey_t()
2446
gnutls.pubkey_init(ctypes.byref(pubkey))
2447
# Import the raw public key into the certificate
2448
gnutls.pubkey_import(pubkey,
2449
ctypes.byref(datum),
2450
gnutls.X509_FMT_DER)
2451
# New buffer for the key ID
2452
buf = ctypes.create_string_buffer(32)
2453
buf_len = ctypes.c_size_t(len(buf))
2454
# Get the key ID from the raw public key into the buffer
2455
gnutls.pubkey_get_key_id(pubkey,
2456
gnutls.KEYID_USE_SHA256,
2457
ctypes.cast(ctypes.byref(buf),
2458
ctypes.POINTER(ctypes.c_ubyte)),
2459
ctypes.byref(buf_len))
2460
# Deinit the certificate
2461
gnutls.pubkey_deinit(pubkey)
2462
2463
# Convert the buffer to a Python bytestring
2464
key_id = ctypes.string_at(buf, buf_len.value)
2465
# Convert the bytestring to hexadecimal notation
2466
hex_key_id = binascii.hexlify(key_id).upper()
2467
return hex_key_id
2468
1467
2469
1468
@staticmethod
2470
1469
def fingerprint(openpgp):
2471
1470
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2472
1471
# New GnuTLS "datum" with the OpenPGP public key
2473
datum = gnutls.datum_t(
2474
ctypes.cast(ctypes.c_char_p(openpgp),
2475
ctypes.POINTER(ctypes.c_ubyte)),
2476
ctypes.c_uint(len(openpgp)))
1472
datum = (gnutls.library.types
1473
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1474
ctypes.POINTER
1475
(ctypes.c_ubyte)),
1476
ctypes.c_uint(len(openpgp))))
2477
1477
# New empty GnuTLS certificate
2478
crt = gnutls.openpgp_crt_t()
2479
gnutls.openpgp_crt_init(ctypes.byref(crt))
1478
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1479
(gnutls.library.functions
1480
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2480
1481
# Import the OpenPGP public key into the certificate
2481
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2482
gnutls.OPENPGP_FMT_RAW)
1482
(gnutls.library.functions
1483
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1484
gnutls.library.constants
1485
.GNUTLS_OPENPGP_FMT_RAW))
2483
1486
# Verify the self signature in the key
2484
1487
crtverify = ctypes.c_uint()
2485
gnutls.openpgp_crt_verify_self(crt, 0,
2486
ctypes.byref(crtverify))
1488
(gnutls.library.functions
1489
.gnutls_openpgp_crt_verify_self(crt, 0,
1490
ctypes.byref(crtverify)))
2487
1491
if crtverify.value != 0:
2488
gnutls.openpgp_crt_deinit(crt)
2489
raise gnutls.CertificateSecurityError(code
2490
=crtverify.value)
1492
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1493
raise (gnutls.errors.CertificateSecurityError
1494
("Verify failed"))
2491
1495
# New buffer for the fingerprint
2492
1496
buf = ctypes.create_string_buffer(20)
2493
1497
buf_len = ctypes.c_size_t()
2494
1498
# Get the fingerprint from the certificate into the buffer
2495
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2496
ctypes.byref(buf_len))
1499
(gnutls.library.functions
1500
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1501
ctypes.byref(buf_len)))
2497
1502
# Deinit the certificate
2498
gnutls.openpgp_crt_deinit(crt)
1503
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2499
1504
# Convert the buffer to a Python bytestring
2500
1505
fpr = ctypes.string_at(buf, buf_len.value)
2501
1506
# Convert the bytestring to hexadecimal notation
2502
hex_fpr = binascii.hexlify(fpr).upper()
1507
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2503
1508
return hex_fpr
2504
1509
2505
1510
2506
class MultiprocessingMixIn:
1511
class MultiprocessingMixIn(object):
2507
1512
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2508
2509
1513
def sub_process_main(self, request, address):
2510
1514
try:
2511
1515
self.finish_request(request, address)
2512
except Exception:
1516
except:
2513
1517
self.handle_error(request, address)
2514
1518
self.close_request(request)
2515
1519
2516
1520
def process_request(self, request, address):
2517
1521
"""Start a new process to process the request."""
2518
proc = multiprocessing.Process(target=self.sub_process_main,
2519
args=(request, address))
1522
proc = multiprocessing.Process(target = self.sub_process_main,
1523
args = (request,
1524
address))
2520
1525
proc.start()
2521
1526
return proc
2522
1527
2523
1528
2524
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1529
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2525
1530
""" adds a pipe to the MixIn """
2526
2527
1531
def process_request(self, request, client_address):
2528
1532
"""Overrides and wraps the original process_request().
2529
1533
2530
1534
This function creates a new pipe in self.pipe
2531
1535
"""
2532
1536
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2533
1537
2534
1538
proc = MultiprocessingMixIn.process_request(self, request,
2535
1539
client_address)
2536
1540
self.child_pipe.close()
2537
1541
self.add_pipe(parent_pipe, proc)
2538
1542
2539
1543
def add_pipe(self, parent_pipe, proc):
2540
1544
"""Dummy function; override as necessary"""
2541
raise NotImplementedError()
1545
raise NotImplementedError
2542
1546
2543
1547
2544
1548
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2545
socketserver.TCPServer):
1549
socketserver.TCPServer, object):
2546
1550
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2547
1551
2548
1552
Attributes:
2549
1553
enabled: Boolean; whether this server is activated yet
2550
1554
interface: None or a network interface name (string)
2551
1555
use_ipv6: Boolean; to use IPv6 or not
2552
1556
"""
2553
2554
1557
def __init__(self, server_address, RequestHandlerClass,
2555
interface=None,
2556
use_ipv6=True,
2557
socketfd=None):
2558
"""If socketfd is set, use that file descriptor instead of
2559
creating a new one with socket.socket().
2560
"""
1558
interface=None, use_ipv6=True):
2561
1559
self.interface = interface
2562
1560
if use_ipv6:
2563
1561
self.address_family = socket.AF_INET6
2564
if socketfd is not None:
2565
# Save the file descriptor
2566
self.socketfd = socketfd
2567
# Save the original socket.socket() function
2568
self.socket_socket = socket.socket
2569
2570
# To implement --socket, we monkey patch socket.socket.
2571
#
2572
# (When socketserver.TCPServer is a new-style class, we
2573
# could make self.socket into a property instead of monkey
2574
# patching socket.socket.)
2575
#
2576
# Create a one-time-only replacement for socket.socket()
2577
@functools.wraps(socket.socket)
2578
def socket_wrapper(*args, **kwargs):
2579
# Restore original function so subsequent calls are
2580
# not affected.
2581
socket.socket = self.socket_socket
2582
del self.socket_socket
2583
# This time only, return a new socket object from the
2584
# saved file descriptor.
2585
return socket.fromfd(self.socketfd, *args, **kwargs)
2586
# Replace socket.socket() function with wrapper
2587
socket.socket = socket_wrapper
2588
# The socketserver.TCPServer.__init__ will call
2589
# socket.socket(), which might be our replacement,
2590
# socket_wrapper(), if socketfd was set.
2591
1562
socketserver.TCPServer.__init__(self, server_address,
2592
1563
RequestHandlerClass)
2593
2594
1564
def server_bind(self):
2595
1565
"""This overrides the normal server_bind() function
2596
1566
to bind to an interface if one was specified, and also NOT to
2597
1567
bind to an address or port if they were not specified."""
2598
global SO_BINDTODEVICE
2599
1568
if self.interface is not None:
2600
1569
if SO_BINDTODEVICE is None:
2601
# Fall back to a hard-coded value which seems to be
2602
# common enough.
2603
logger.warning("SO_BINDTODEVICE not found, trying 25")
2604
SO_BINDTODEVICE = 25
2605
try:
2606
self.socket.setsockopt(
2607
socket.SOL_SOCKET, SO_BINDTODEVICE,
2608
(self.interface + "\0").encode("utf-8"))
2609
except socket.error as error:
2610
if error.errno == errno.EPERM:
2611
logger.error("No permission to bind to"
2612
" interface %s", self.interface)
2613
elif error.errno == errno.ENOPROTOOPT:
2614
logger.error("SO_BINDTODEVICE not available;"
2615
" cannot bind to interface %s",
2616
self.interface)
2617
elif error.errno == errno.ENODEV:
2618
logger.error("Interface %s does not exist,"
2619
" cannot bind", self.interface)
2620
else:
2621
raise
1570
logger.error("SO_BINDTODEVICE does not exist;"
1571
" cannot bind to interface %s",
1572
self.interface)
1573
else:
1574
try:
1575
self.socket.setsockopt(socket.SOL_SOCKET,
1576
SO_BINDTODEVICE,
1577
str(self.interface
1578
+ '\0'))
1579
except socket.error as error:
1580
if error[0] == errno.EPERM:
1581
logger.error("No permission to"
1582
" bind to interface %s",
1583
self.interface)
1584
elif error[0] == errno.ENOPROTOOPT:
1585
logger.error("SO_BINDTODEVICE not available;"
1586
" cannot bind to interface %s",
1587
self.interface)
1588
else:
1589
raise
2622
1590
# Only bind(2) the socket if we really need to.
2623
1591
if self.server_address[0] or self.server_address[1]:
2624
if self.server_address[1]:
2625
self.allow_reuse_address = True
2626
1592
if not self.server_address[0]:
2627
1593
if self.address_family == socket.AF_INET6:
2628
any_address = "::" # in6addr_any
1594
any_address = "::" # in6addr_any
2629
1595
else:
2630
any_address = "0.0.0.0" # INADDR_ANY
1596
any_address = socket.INADDR_ANY
2631
1597
self.server_address = (any_address,
2632
1598
self.server_address[1])
2633
1599
elif not self.server_address[1]:
2634
self.server_address = (self.server_address[0], 0)
1600
self.server_address = (self.server_address[0],
1601
0)
2635
1602
# if self.interface:
2636
1603
# self.server_address = (self.server_address[0],
2637
1604
# 0, # port
2643
1610
2644
1611
class MandosServer(IPv6_TCPServer):
2645
1612
"""Mandos server.
2646
1613
2647
1614
Attributes:
2648
1615
clients: set of Client objects
2649
1616
gnutls_priority GnuTLS priority string
2650
1617
use_dbus: Boolean; to emit D-Bus signals or not
2651
2652
Assumes a GLib.MainLoop event loop.
1618
1619
Assumes a gobject.MainLoop event loop.
2653
1620
"""
2654
2655
1621
def __init__(self, server_address, RequestHandlerClass,
2656
interface=None,
2657
use_ipv6=True,
2658
clients=None,
2659
gnutls_priority=None,
2660
use_dbus=True,
2661
socketfd=None):
1622
interface=None, use_ipv6=True, clients=None,
1623
gnutls_priority=None, use_dbus=True):
2662
1624
self.enabled = False
2663
1625
self.clients = clients
2664
1626
if self.clients is None:
2665
self.clients = {}
1627
self.clients = set()
2666
1628
self.use_dbus = use_dbus
2667
1629
self.gnutls_priority = gnutls_priority
2668
1630
IPv6_TCPServer.__init__(self, server_address,
2669
1631
RequestHandlerClass,
2670
interface=interface,
2671
use_ipv6=use_ipv6,
2672
socketfd=socketfd)
2673
1632
interface = interface,
1633
use_ipv6 = use_ipv6)
2674
1634
def server_activate(self):
2675
1635
if self.enabled:
2676
1636
return socketserver.TCPServer.server_activate(self)
2677
1637
2678
1638
def enable(self):
2679
1639
self.enabled = True
2680
1640
2681
1641
def add_pipe(self, parent_pipe, proc):
2682
1642
# Call "handle_ipc" for both data and EOF events
2683
GLib.io_add_watch(
2684
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2685
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2686
functools.partial(self.handle_ipc,
2687
parent_pipe=parent_pipe,
2688
proc=proc))
2689
2690
def handle_ipc(self, source, condition,
2691
parent_pipe=None,
2692
proc=None,
2693
client_object=None):
1643
gobject.io_add_watch(parent_pipe.fileno(),
1644
gobject.IO_IN | gobject.IO_HUP,
1645
functools.partial(self.handle_ipc,
1646
parent_pipe =
1647
parent_pipe,
1648
proc = proc))
1649
1650
def handle_ipc(self, source, condition, parent_pipe=None,
1651
proc = None, client_object=None):
1652
condition_names = {
1653
gobject.IO_IN: "IN", # There is data to read.
1654
gobject.IO_OUT: "OUT", # Data can be written (without
1655
# blocking).
1656
gobject.IO_PRI: "PRI", # There is urgent data to read.
1657
gobject.IO_ERR: "ERR", # Error condition.
1658
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1659
# broken, usually for pipes and
1660
# sockets).
1661
}
1662
conditions_string = ' | '.join(name
1663
for cond, name in
1664
condition_names.iteritems()
1665
if cond & condition)
2694
1666
# error, or the other end of multiprocessing.Pipe has closed
2695
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1667
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2696
1668
# Wait for other process to exit
2697
1669
proc.join()
2698
1670
return False
2699
1671
2700
1672
# Read a request from the child
2701
1673
request = parent_pipe.recv()
2702
1674
command = request[0]
2703
1675
2704
1676
if command == 'init':
2705
key_id = request[1].decode("ascii")
2706
fpr = request[2].decode("ascii")
2707
address = request[3]
2708
2709
for c in self.clients.values():
2710
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2711
continue
2712
if key_id and c.key_id == key_id:
2713
client = c
2714
break
2715
if fpr and c.fingerprint == fpr:
1677
fpr = request[1]
1678
address = request[2]
1679
1680
for c in self.clients:
1681
if c.fingerprint == fpr:
2716
1682
client = c
2717
1683
break
2718
1684
else:
2719
logger.info("Client not found for key ID: %s, address"
2720
": %s", key_id or fpr, address)
1685
logger.info("Client not found for fingerprint: %s, ad"
1686
"dress: %s", fpr, address)
2721
1687
if self.use_dbus:
2722
1688
# Emit D-Bus signal
2723
mandos_dbus_service.ClientNotFound(key_id or fpr,
1689
mandos_dbus_service.ClientNotFound(fpr,
2724
1690
address[0])
2725
1691
parent_pipe.send(False)
2726
1692
return False
2727
2728
GLib.io_add_watch(
2729
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2730
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2731
functools.partial(self.handle_ipc,
2732
parent_pipe=parent_pipe,
2733
proc=proc,
2734
client_object=client))
1693
1694
gobject.io_add_watch(parent_pipe.fileno(),
1695
gobject.IO_IN | gobject.IO_HUP,
1696
functools.partial(self.handle_ipc,
1697
parent_pipe =
1698
parent_pipe,
1699
proc = proc,
1700
client_object =
1701
client))
2735
1702
parent_pipe.send(True)
2736
1703
# remove the old hook in favor of the new above hook on
2737
1704
# same fileno
2740
1707
funcname = request[1]
2741
1708
args = request[2]
2742
1709
kwargs = request[3]
2743
1710
2744
1711
parent_pipe.send(('data', getattr(client_object,
2745
1712
funcname)(*args,
2746
**kwargs)))
2747
1713
**kwargs)))
1714
2748
1715
if command == 'getattr':
2749
1716
attrname = request[1]
2750
if isinstance(client_object.__getattribute__(attrname),
2751
collections.Callable):
2752
parent_pipe.send(('function', ))
1717
if callable(client_object.__getattribute__(attrname)):
1718
parent_pipe.send(('function',))
2753
1719
else:
2754
parent_pipe.send((
2755
'data', client_object.__getattribute__(attrname)))
2756
1720
parent_pipe.send(('data', client_object
1721
.__getattribute__(attrname)))
1722
2757
1723
if command == 'setattr':
2758
1724
attrname = request[1]
2759
1725
value = request[2]
2760
1726
setattr(client_object, attrname, value)
2761
1727
2762
1728
return True
2763
1729
2764
1730
2765
def rfc3339_duration_to_delta(duration):
2766
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2767
2768
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2769
True
2770
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2771
True
2772
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2773
True
2774
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2775
True
2776
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2777
True
2778
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2779
True
2780
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2781
True
2782
"""
2783
2784
# Parsing an RFC 3339 duration with regular expressions is not
2785
# possible - there would have to be multiple places for the same
2786
# values, like seconds. The current code, while more esoteric, is
2787
# cleaner without depending on a parsing library. If Python had a
2788
# built-in library for parsing we would use it, but we'd like to
2789
# avoid excessive use of external libraries.
2790
2791
# New type for defining tokens, syntax, and semantics all-in-one
2792
Token = collections.namedtuple("Token", (
2793
"regexp", # To match token; if "value" is not None, must have
2794
# a "group" containing digits
2795
"value", # datetime.timedelta or None
2796
"followers")) # Tokens valid after this token
2797
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2798
# the "duration" ABNF definition in RFC 3339, Appendix A.
2799
token_end = Token(re.compile(r"$"), None, frozenset())
2800
token_second = Token(re.compile(r"(\d+)S"),
2801
datetime.timedelta(seconds=1),
2802
frozenset((token_end, )))
2803
token_minute = Token(re.compile(r"(\d+)M"),
2804
datetime.timedelta(minutes=1),
2805
frozenset((token_second, token_end)))
2806
token_hour = Token(re.compile(r"(\d+)H"),
2807
datetime.timedelta(hours=1),
2808
frozenset((token_minute, token_end)))
2809
token_time = Token(re.compile(r"T"),
2810
None,
2811
frozenset((token_hour, token_minute,
2812
token_second)))
2813
token_day = Token(re.compile(r"(\d+)D"),
2814
datetime.timedelta(days=1),
2815
frozenset((token_time, token_end)))
2816
token_month = Token(re.compile(r"(\d+)M"),
2817
datetime.timedelta(weeks=4),
2818
frozenset((token_day, token_end)))
2819
token_year = Token(re.compile(r"(\d+)Y"),
2820
datetime.timedelta(weeks=52),
2821
frozenset((token_month, token_end)))
2822
token_week = Token(re.compile(r"(\d+)W"),
2823
datetime.timedelta(weeks=1),
2824
frozenset((token_end, )))
2825
token_duration = Token(re.compile(r"P"), None,
2826
frozenset((token_year, token_month,
2827
token_day, token_time,
2828
token_week)))
2829
# Define starting values:
2830
# Value so far
2831
value = datetime.timedelta()
2832
found_token = None
2833
# Following valid tokens
2834
followers = frozenset((token_duration, ))
2835
# String left to parse
2836
s = duration
2837
# Loop until end token is found
2838
while found_token is not token_end:
2839
# Search for any currently valid tokens
2840
for token in followers:
2841
match = token.regexp.match(s)
2842
if match is not None:
2843
# Token found
2844
if token.value is not None:
2845
# Value found, parse digits
2846
factor = int(match.group(1), 10)
2847
# Add to value so far
2848
value += factor * token.value
2849
# Strip token from string
2850
s = token.regexp.sub("", s, 1)
2851
# Go to found token
2852
found_token = token
2853
# Set valid next tokens
2854
followers = found_token.followers
2855
break
2856
else:
2857
# No currently valid tokens were found
2858
raise ValueError("Invalid RFC 3339 duration: {!r}"
2859
.format(duration))
2860
# End token found
2861
return value
2862
2863
2864
1731
def string_to_delta(interval):
2865
1732
"""Parse a string and return a datetime.timedelta
2866
2867
>>> string_to_delta('7d') == datetime.timedelta(7)
2868
True
2869
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2870
True
2871
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2872
True
2873
>>> string_to_delta('24h') == datetime.timedelta(1)
2874
True
2875
>>> string_to_delta('1w') == datetime.timedelta(7)
2876
True
2877
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2878
True
1733
1734
>>> string_to_delta('7d')
1735
datetime.timedelta(7)
1736
>>> string_to_delta('60s')
1737
datetime.timedelta(0, 60)
1738
>>> string_to_delta('60m')
1739
datetime.timedelta(0, 3600)
1740
>>> string_to_delta('24h')
1741
datetime.timedelta(1)
1742
>>> string_to_delta('1w')
1743
datetime.timedelta(7)
1744
>>> string_to_delta('5m 30s')
1745
datetime.timedelta(0, 330)
2879
1746
"""
2880
2881
try:
2882
return rfc3339_duration_to_delta(interval)
2883
except ValueError:
2884
pass
2885
2886
1747
timevalue = datetime.timedelta(0)
2887
1748
for s in interval.split():
2888
1749
try:
2889
suffix = s[-1]
1750
suffix = unicode(s[-1])
2890
1751
value = int(s[:-1])
2891
1752
if suffix == "d":
2892
1753
delta = datetime.timedelta(value)
2899
1760
elif suffix == "w":
2900
1761
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2901
1762
else:
2902
raise ValueError("Unknown suffix {!r}".format(suffix))
2903
except IndexError as e:
1763
raise ValueError("Unknown suffix %r" % suffix)
1764
except (ValueError, IndexError) as e:
2904
1765
raise ValueError(*(e.args))
2905
1766
timevalue += delta
2906
1767
return timevalue
2907
1768
2908
1769
2909
def daemon(nochdir=False, noclose=False):
1770
def if_nametoindex(interface):
1771
"""Call the C function if_nametoindex(), or equivalent
1772
1773
Note: This function cannot accept a unicode string."""
1774
global if_nametoindex
1775
try:
1776
if_nametoindex = (ctypes.cdll.LoadLibrary
1777
(ctypes.util.find_library("c"))
1778
.if_nametoindex)
1779
except (OSError, AttributeError):
1780
logger.warning("Doing if_nametoindex the hard way")
1781
def if_nametoindex(interface):
1782
"Get an interface index the hard way, i.e. using fcntl()"
1783
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1784
with contextlib.closing(socket.socket()) as s:
1785
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1786
struct.pack(str("16s16x"),
1787
interface))
1788
interface_index = struct.unpack(str("I"),
1789
ifreq[16:20])[0]
1790
return interface_index
1791
return if_nametoindex(interface)
1792
1793
1794
def daemon(nochdir = False, noclose = False):
2910
1795
"""See daemon(3). Standard BSD Unix function.
2911
1796
2912
1797
This should really exist as os.daemon, but it doesn't (yet)."""
2913
1798
if os.fork():
2914
1799
sys.exit()
2919
1804
sys.exit()
2920
1805
if not noclose:
2921
1806
# Close all standard open file descriptors
2922
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1807
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2923
1808
if not stat.S_ISCHR(os.fstat(null).st_mode):
2924
1809
raise OSError(errno.ENODEV,
2925
"{} not a character device"
2926
.format(os.devnull))
1810
"%s not a character device"
1811
% os.path.devnull)
2927
1812
os.dup2(null, sys.stdin.fileno())
2928
1813
os.dup2(null, sys.stdout.fileno())
2929
1814
os.dup2(null, sys.stderr.fileno())
2932
1817
2933
1818
2934
1819
def main():
2935
1820
2936
1821
##################################################################
2937
1822
# Parsing of options, both command line and config file
2938
1823
2939
1824
parser = argparse.ArgumentParser()
2940
1825
parser.add_argument("-v", "--version", action="version",
2941
version="%(prog)s {}".format(version),
1826
version = "%%(prog)s %s" % version,
2942
1827
help="show version number and exit")
2943
1828
parser.add_argument("-i", "--interface", metavar="IF",
2944
1829
help="Bind to interface IF")
2950
1835
help="Run self-test")
2951
1836
parser.add_argument("--debug", action="store_true",
2952
1837
help="Debug mode; run in foreground and log"
2953
" to terminal", default=None)
1838
" to terminal")
2954
1839
parser.add_argument("--debuglevel", metavar="LEVEL",
2955
1840
help="Debug level for stdout output")
2956
1841
parser.add_argument("--priority", help="GnuTLS"
2963
1848
" files")
2964
1849
parser.add_argument("--no-dbus", action="store_false",
2965
1850
dest="use_dbus", help="Do not provide D-Bus"
2966
" system bus interface", default=None)
1851
" system bus interface")
2967
1852
parser.add_argument("--no-ipv6", action="store_false",
2968
dest="use_ipv6", help="Do not use IPv6",
2969
default=None)
2970
parser.add_argument("--no-restore", action="store_false",
2971
dest="restore", help="Do not restore stored"
2972
" state", default=None)
2973
parser.add_argument("--socket", type=int,
2974
help="Specify a file descriptor to a network"
2975
" socket to use instead of creating one")
2976
parser.add_argument("--statedir", metavar="DIR",
2977
help="Directory to save/restore state in")
2978
parser.add_argument("--foreground", action="store_true",
2979
help="Run in foreground", default=None)
2980
parser.add_argument("--no-zeroconf", action="store_false",
2981
dest="zeroconf", help="Do not use Zeroconf",
2982
default=None)
2983
1853
dest="use_ipv6", help="Do not use IPv6")
2984
1854
options = parser.parse_args()
2985
1855
1856
if options.check:
1857
import doctest
1858
doctest.testmod()
1859
sys.exit()
1860
2986
1861
# Default values for config file for server-global settings
2987
if gnutls.has_rawpk:
2988
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2989
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2990
else:
2991
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2992
":+SIGN-DSA-SHA256")
2993
server_defaults = {"interface": "",
2994
"address": "",
2995
"port": "",
2996
"debug": "False",
2997
"priority": priority,
2998
"servicename": "Mandos",
2999
"use_dbus": "True",
3000
"use_ipv6": "True",
3001
"debuglevel": "",
3002
"restore": "True",
3003
"socket": "",
3004
"statedir": "/var/lib/mandos",
3005
"foreground": "False",
3006
"zeroconf": "True",
3007
}
3008
del priority
3009
1862
server_defaults = { "interface": "",
1863
"address": "",
1864
"port": "",
1865
"debug": "False",
1866
"priority":
1867
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1868
"servicename": "Mandos",
1869
"use_dbus": "True",
1870
"use_ipv6": "True",
1871
"debuglevel": "",
1872
}
1873
3010
1874
# Parse config file for server-global settings
3011
server_config = configparser.ConfigParser(server_defaults)
1875
server_config = configparser.SafeConfigParser(server_defaults)
3012
1876
del server_defaults
3013
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3014
# Convert the ConfigParser object to a dict
1877
server_config.read(os.path.join(options.configdir,
1878
"mandos.conf"))
1879
# Convert the SafeConfigParser object to a dict
3015
1880
server_settings = server_config.defaults()
3016
1881
# Use the appropriate methods on the non-string config options
3017
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3018
"foreground", "zeroconf"):
1882
for option in ("debug", "use_dbus", "use_ipv6"):
3019
1883
server_settings[option] = server_config.getboolean("DEFAULT",
3020
1884
option)
3021
1885
if server_settings["port"]:
3022
1886
server_settings["port"] = server_config.getint("DEFAULT",
3023
1887
"port")
3024
if server_settings["socket"]:
3025
server_settings["socket"] = server_config.getint("DEFAULT",
3026
"socket")
3027
# Later, stdin will, and stdout and stderr might, be dup'ed
3028
# over with an opened os.devnull. But we don't want this to
3029
# happen with a supplied network socket.
3030
if 0 <= server_settings["socket"] <= 2:
3031
server_settings["socket"] = os.dup(server_settings
3032
["socket"])
3033
1888
del server_config
3034
1889
3035
1890
# Override the settings from the config file with command line
3036
1891
# options, if set.
3037
1892
for option in ("interface", "address", "port", "debug",
3038
"priority", "servicename", "configdir", "use_dbus",
3039
"use_ipv6", "debuglevel", "restore", "statedir",
3040
"socket", "foreground", "zeroconf"):
1893
"priority", "servicename", "configdir",
1894
"use_dbus", "use_ipv6", "debuglevel"):
3041
1895
value = getattr(options, option)
3042
1896
if value is not None:
3043
1897
server_settings[option] = value
3044
1898
del options
3045
1899
# Force all strings to be unicode
3046
1900
for option in server_settings.keys():
3047
if isinstance(server_settings[option], bytes):
3048
server_settings[option] = (server_settings[option]
3049
.decode("utf-8"))
3050
# Force all boolean options to be boolean
3051
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3052
"foreground", "zeroconf"):
3053
server_settings[option] = bool(server_settings[option])
3054
# Debug implies foreground
3055
if server_settings["debug"]:
3056
server_settings["foreground"] = True
1901
if type(server_settings[option]) is str:
1902
server_settings[option] = unicode(server_settings[option])
3057
1903
# Now we have our good server settings in "server_settings"
3058
1904
3059
1905
##################################################################
3060
3061
if (not server_settings["zeroconf"]
3062
and not (server_settings["port"]
3063
or server_settings["socket"] != "")):
3064
parser.error("Needs port or socket to work without Zeroconf")
3065
1906
3066
1907
# For convenience
3067
1908
debug = server_settings["debug"]
3068
1909
debuglevel = server_settings["debuglevel"]
3069
1910
use_dbus = server_settings["use_dbus"]
3070
1911
use_ipv6 = server_settings["use_ipv6"]
3071
stored_state_path = os.path.join(server_settings["statedir"],
3072
stored_state_file)
3073
foreground = server_settings["foreground"]
3074
zeroconf = server_settings["zeroconf"]
3075
3076
if debug:
3077
initlogger(debug, logging.DEBUG)
3078
else:
3079
if not debuglevel:
3080
initlogger(debug)
3081
else:
3082
level = getattr(logging, debuglevel.upper())
3083
initlogger(debug, level)
3084
1912
3085
1913
if server_settings["servicename"] != "Mandos":
3086
syslogger.setFormatter(
3087
logging.Formatter('Mandos ({}) [%(process)d]:'
3088
' %(levelname)s: %(message)s'.format(
3089
server_settings["servicename"])))
3090
1914
syslogger.setFormatter(logging.Formatter
1915
('Mandos (%s) [%%(process)d]:'
1916
' %%(levelname)s: %%(message)s'
1917
% server_settings["servicename"]))
1918
3091
1919
# Parse config file with clients
3092
client_config = configparser.ConfigParser(Client.client_defaults)
1920
client_defaults = { "timeout": "5m",
1921
"extended_timeout": "15m",
1922
"interval": "2m",
1923
"checker": "fping -q -- %%(host)s",
1924
"host": "",
1925
"approval_delay": "0s",
1926
"approval_duration": "1s",
1927
}
1928
client_config = configparser.SafeConfigParser(client_defaults)
3093
1929
client_config.read(os.path.join(server_settings["configdir"],
3094
1930
"clients.conf"))
3095
1931
3096
1932
global mandos_dbus_service
3097
1933
mandos_dbus_service = None
3098
3099
socketfd = None
3100
if server_settings["socket"] != "":
3101
socketfd = server_settings["socket"]
3102
tcp_server = MandosServer(
3103
(server_settings["address"], server_settings["port"]),
3104
ClientHandler,
3105
interface=(server_settings["interface"] or None),
3106
use_ipv6=use_ipv6,
3107
gnutls_priority=server_settings["priority"],
3108
use_dbus=use_dbus,
3109
socketfd=socketfd)
3110
if not foreground:
3111
pidfilename = "/run/mandos.pid"
3112
if not os.path.isdir("/run/."):
3113
pidfilename = "/var/run/mandos.pid"
3114
pidfile = None
3115
try:
3116
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3117
except IOError as e:
3118
logger.error("Could not open file %r", pidfilename,
3119
exc_info=e)
3120
3121
for name, group in (("_mandos", "_mandos"),
3122
("mandos", "mandos"),
3123
("nobody", "nogroup")):
3124
try:
3125
uid = pwd.getpwnam(name).pw_uid
3126
gid = pwd.getpwnam(group).pw_gid
3127
break
1934
1935
tcp_server = MandosServer((server_settings["address"],
1936
server_settings["port"]),
1937
ClientHandler,
1938
interface=(server_settings["interface"]
1939
or None),
1940
use_ipv6=use_ipv6,
1941
gnutls_priority=
1942
server_settings["priority"],
1943
use_dbus=use_dbus)
1944
if not debug:
1945
pidfilename = "/var/run/mandos.pid"
1946
try:
1947
pidfile = open(pidfilename, "w")
1948
except IOError:
1949
logger.error("Could not open file %r", pidfilename)
1950
1951
try:
1952
uid = pwd.getpwnam("_mandos").pw_uid
1953
gid = pwd.getpwnam("_mandos").pw_gid
1954
except KeyError:
1955
try:
1956
uid = pwd.getpwnam("mandos").pw_uid
1957
gid = pwd.getpwnam("mandos").pw_gid
3128
1958
except KeyError:
3129
continue
3130
else:
3131
uid = 65534
3132
gid = 65534
1959
try:
1960
uid = pwd.getpwnam("nobody").pw_uid
1961
gid = pwd.getpwnam("nobody").pw_gid
1962
except KeyError:
1963
uid = 65534
1964
gid = 65534
3133
1965
try:
3134
1966
os.setgid(gid)
3135
1967
os.setuid(uid)
3136
if debug:
3137
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3138
gid))
3139
1968
except OSError as error:
3140
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3141
.format(uid, gid, os.strerror(error.errno)))
3142
if error.errno != errno.EPERM:
3143
raise
3144
1969
if error[0] != errno.EPERM:
1970
raise error
1971
1972
if not debug and not debuglevel:
1973
syslogger.setLevel(logging.WARNING)
1974
console.setLevel(logging.WARNING)
1975
if debuglevel:
1976
level = getattr(logging, debuglevel.upper())
1977
syslogger.setLevel(level)
1978
console.setLevel(level)
1979
3145
1980
if debug:
3146
1981
# Enable all possible GnuTLS debugging
3147
1982
3148
1983
# "Use a log level over 10 to enable all debugging options."
3149
1984
# - GnuTLS manual
3150
gnutls.global_set_log_level(11)
3151
3152
@gnutls.log_func
1985
gnutls.library.functions.gnutls_global_set_log_level(11)
1986
1987
@gnutls.library.types.gnutls_log_func
3153
1988
def debug_gnutls(level, string):
3154
1989
logger.debug("GnuTLS: %s", string[:-1])
3155
3156
gnutls.global_set_log_function(debug_gnutls)
3157
1990
1991
(gnutls.library.functions
1992
.gnutls_global_set_log_function(debug_gnutls))
1993
3158
1994
# Redirect stdin so all checkers get /dev/null
3159
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1995
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3160
1996
os.dup2(null, sys.stdin.fileno())
3161
1997
if null > 2:
3162
1998
os.close(null)
3163
1999
else:
2000
# No console logging
2001
logger.removeHandler(console)
2002
3164
2003
# Need to fork before connecting to D-Bus
3165
if not foreground:
2004
if not debug:
3166
2005
# Close all input and output, do double fork, etc.
3167
2006
daemon()
3168
3169
if gi.version_info < (3, 10, 2):
3170
# multiprocessing will use threads, so before we use GLib we
3171
# need to inform GLib that threads will be used.
3172
GLib.threads_init()
3173
2007
3174
2008
global main_loop
3175
2009
# From the Avahi example code
3176
DBusGMainLoop(set_as_default=True)
3177
main_loop = GLib.MainLoop()
2010
DBusGMainLoop(set_as_default=True )
2011
main_loop = gobject.MainLoop()
3178
2012
bus = dbus.SystemBus()
3179
2013
# End of Avahi example code
3180
2014
if use_dbus:
3181
2015
try:
3182
2016
bus_name = dbus.service.BusName("se.recompile.Mandos",
3183
bus,
3184
do_not_queue=True)
3185
old_bus_name = dbus.service.BusName(
3186
"se.bsnet.fukt.Mandos", bus,
3187
do_not_queue=True)
3188
except dbus.exceptions.DBusException as e:
3189
logger.error("Disabling D-Bus:", exc_info=e)
2017
bus, do_not_queue=True)
2018
old_bus_name = (dbus.service.BusName
2019
("se.bsnet.fukt.Mandos", bus,
2020
do_not_queue=True))
2021
except dbus.exceptions.NameExistsException as e:
2022
logger.error(unicode(e) + ", disabling D-Bus")
3190
2023
use_dbus = False
3191
2024
server_settings["use_dbus"] = False
3192
2025
tcp_server.use_dbus = False
3193
if zeroconf:
3194
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3195
service = AvahiServiceToSyslog(
3196
name=server_settings["servicename"],
3197
servicetype="_mandos._tcp",
3198
protocol=protocol,
3199
bus=bus)
3200
if server_settings["interface"]:
3201
service.interface = if_nametoindex(
3202
server_settings["interface"].encode("utf-8"))
3203
2026
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2027
service = AvahiService(name = server_settings["servicename"],
2028
servicetype = "_mandos._tcp",
2029
protocol = protocol, bus = bus)
2030
if server_settings["interface"]:
2031
service.interface = (if_nametoindex
2032
(str(server_settings["interface"])))
2033
3204
2034
global multiprocessing_manager
3205
2035
multiprocessing_manager = multiprocessing.Manager()
3206
2036
3207
2037
client_class = Client
3208
2038
if use_dbus:
3209
client_class = functools.partial(ClientDBus, bus=bus)
3210
3211
client_settings = Client.config_parser(client_config)
3212
old_client_settings = {}
3213
clients_data = {}
3214
3215
# This is used to redirect stdout and stderr for checker processes
3216
global wnull
3217
wnull = open(os.devnull, "w") # A writable /dev/null
3218
# Only used if server is running in foreground but not in debug
3219
# mode
3220
if debug or not foreground:
3221
wnull.close()
3222
3223
# Get client data and settings from last running state.
3224
if server_settings["restore"]:
3225
try:
3226
with open(stored_state_path, "rb") as stored_state:
3227
if sys.version_info.major == 2:
3228
clients_data, old_client_settings = pickle.load(
3229
stored_state)
3230
else:
3231
bytes_clients_data, bytes_old_client_settings = (
3232
pickle.load(stored_state, encoding="bytes"))
3233
# Fix bytes to strings
3234
# clients_data
3235
# .keys()
3236
clients_data = {(key.decode("utf-8")
3237
if isinstance(key, bytes)
3238
else key): value
3239
for key, value in
3240
bytes_clients_data.items()}
3241
del bytes_clients_data
3242
for key in clients_data:
3243
value = {(k.decode("utf-8")
3244
if isinstance(k, bytes) else k): v
3245
for k, v in
3246
clients_data[key].items()}
3247
clients_data[key] = value
3248
# .client_structure
3249
value["client_structure"] = [
3250
(s.decode("utf-8")
3251
if isinstance(s, bytes)
3252
else s) for s in
3253
value["client_structure"]]
3254
# .name & .host
3255
for k in ("name", "host"):
3256
if isinstance(value[k], bytes):
3257
value[k] = value[k].decode("utf-8")
3258
if "key_id" not in value:
3259
value["key_id"] = ""
3260
elif "fingerprint" not in value:
3261
value["fingerprint"] = ""
3262
# old_client_settings
3263
# .keys()
3264
old_client_settings = {
3265
(key.decode("utf-8")
3266
if isinstance(key, bytes)
3267
else key): value
3268
for key, value in
3269
bytes_old_client_settings.items()}
3270
del bytes_old_client_settings
3271
# .host
3272
for value in old_client_settings.values():
3273
if isinstance(value["host"], bytes):
3274
value["host"] = (value["host"]
3275
.decode("utf-8"))
3276
os.remove(stored_state_path)
3277
except IOError as e:
3278
if e.errno == errno.ENOENT:
3279
logger.warning("Could not load persistent state:"
3280
" {}".format(os.strerror(e.errno)))
3281
else:
3282
logger.critical("Could not load persistent state:",
3283
exc_info=e)
3284
raise
3285
except EOFError as e:
3286
logger.warning("Could not load persistent state: "
3287
"EOFError:",
3288
exc_info=e)
3289
3290
with PGPEngine() as pgp:
3291
for client_name, client in clients_data.items():
3292
# Skip removed clients
3293
if client_name not in client_settings:
3294
continue
3295
3296
# Decide which value to use after restoring saved state.
3297
# We have three different values: Old config file,
3298
# new config file, and saved state.
3299
# New config value takes precedence if it differs from old
3300
# config value, otherwise use saved state.
3301
for name, value in client_settings[client_name].items():
3302
try:
3303
# For each value in new config, check if it
3304
# differs from the old config value (Except for
3305
# the "secret" attribute)
3306
if (name != "secret"
3307
and (value !=
3308
old_client_settings[client_name][name])):
3309
client[name] = value
3310
except KeyError:
3311
pass
3312
3313
# Clients who has passed its expire date can still be
3314
# enabled if its last checker was successful. A Client
3315
# whose checker succeeded before we stored its state is
3316
# assumed to have successfully run all checkers during
3317
# downtime.
3318
if client["enabled"]:
3319
if datetime.datetime.utcnow() >= client["expires"]:
3320
if not client["last_checked_ok"]:
3321
logger.warning(
3322
"disabling client {} - Client never "
3323
"performed a successful checker".format(
3324
client_name))
3325
client["enabled"] = False
3326
elif client["last_checker_status"] != 0:
3327
logger.warning(
3328
"disabling client {} - Client last"
3329
" checker failed with error code"
3330
" {}".format(
3331
client_name,
3332
client["last_checker_status"]))
3333
client["enabled"] = False
3334
else:
3335
client["expires"] = (
3336
datetime.datetime.utcnow()
3337
+ client["timeout"])
3338
logger.debug("Last checker succeeded,"
3339
" keeping {} enabled".format(
3340
client_name))
2039
client_class = functools.partial(ClientDBusTransitional,
2040
bus = bus)
2041
def client_config_items(config, section):
2042
special_settings = {
2043
"approved_by_default":
2044
lambda: config.getboolean(section,
2045
"approved_by_default"),
2046
}
2047
for name, value in config.items(section):
3341
2048
try:
3342
client["secret"] = pgp.decrypt(
3343
client["encrypted_secret"],
3344
client_settings[client_name]["secret"])
3345
except PGPError:
3346
# If decryption fails, we use secret from new settings
3347
logger.debug("Failed to decrypt {} old secret".format(
3348
client_name))
3349
client["secret"] = (client_settings[client_name]
3350
["secret"])
3351
3352
# Add/remove clients based on new changes made to config
3353
for client_name in (set(old_client_settings)
3354
- set(client_settings)):
3355
del clients_data[client_name]
3356
for client_name in (set(client_settings)
3357
- set(old_client_settings)):
3358
clients_data[client_name] = client_settings[client_name]
3359
3360
# Create all client objects
3361
for client_name, client in clients_data.items():
3362
tcp_server.clients[client_name] = client_class(
3363
name=client_name,
3364
settings=client,
3365
server_settings=server_settings)
3366
2049
yield (name, special_settings[name]())
2050
except KeyError:
2051
yield (name, value)
2052
2053
tcp_server.clients.update(set(
2054
client_class(name = section,
2055
config= dict(client_config_items(
2056
client_config, section)))
2057
for section in client_config.sections()))
3367
2058
if not tcp_server.clients:
3368
2059
logger.warning("No clients defined")
3369
3370
if not foreground:
3371
if pidfile is not None:
3372
pid = os.getpid()
3373
try:
3374
with pidfile:
3375
print(pid, file=pidfile)
3376
except IOError:
3377
logger.error("Could not write to file %r with PID %d",
3378
pidfilename, pid)
3379
del pidfile
2060
2061
if not debug:
2062
try:
2063
with pidfile:
2064
pid = os.getpid()
2065
pidfile.write(str(pid) + "\n".encode("utf-8"))
2066
del pidfile
2067
except IOError:
2068
logger.error("Could not write to file %r with PID %d",
2069
pidfilename, pid)
2070
except NameError:
2071
# "pidfile" was never created
2072
pass
3380
2073
del pidfilename
3381
3382
for termsig in (signal.SIGHUP, signal.SIGTERM):
3383
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3384
lambda: main_loop.quit() and False)
3385
2074
2075
signal.signal(signal.SIGINT, signal.SIG_IGN)
2076
2077
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2078
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2079
3386
2080
if use_dbus:
3387
3388
@alternate_dbus_interfaces(
3389
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3390
class MandosDBusService(DBusObjectWithObjectManager):
2081
class MandosDBusService(dbus.service.Object):
3391
2082
"""A D-Bus proxy object"""
3392
3393
2083
def __init__(self):
3394
2084
dbus.service.Object.__init__(self, bus, "/")
3395
3396
2085
_interface = "se.recompile.Mandos"
3397
2086
3398
2087
@dbus.service.signal(_interface, signature="o")
3399
2088
def ClientAdded(self, objpath):
3400
2089
"D-Bus signal"
3401
2090
pass
3402
2091
3403
2092
@dbus.service.signal(_interface, signature="ss")
3404
def ClientNotFound(self, key_id, address):
2093
def ClientNotFound(self, fingerprint, address):
3405
2094
"D-Bus signal"
3406
2095
pass
3407
3408
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3409
"true"})
2096
3410
2097
@dbus.service.signal(_interface, signature="os")
3411
2098
def ClientRemoved(self, objpath, name):
3412
2099
"D-Bus signal"
3413
2100
pass
3414
3415
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3416
"true"})
2101
3417
2102
@dbus.service.method(_interface, out_signature="ao")
3418
2103
def GetAllClients(self):
3419
2104
"D-Bus method"
3420
return dbus.Array(c.dbus_object_path for c in
3421
tcp_server.clients.values())
3422
3423
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3424
"true"})
2105
return dbus.Array(c.dbus_object_path
2106
for c in tcp_server.clients)
2107
3425
2108
@dbus.service.method(_interface,
3426
2109
out_signature="a{oa{sv}}")
3427
2110
def GetAllClientsWithProperties(self):
3428
2111
"D-Bus method"
3429
2112
return dbus.Dictionary(
3430
{c.dbus_object_path: c.GetAll(
3431
"se.recompile.Mandos.Client")
3432
for c in tcp_server.clients.values()},
2113
((c.dbus_object_path, c.GetAll(""))
2114
for c in tcp_server.clients),
3433
2115
signature="oa{sv}")
3434
2116
3435
2117
@dbus.service.method(_interface, in_signature="o")
3436
2118
def RemoveClient(self, object_path):
3437
2119
"D-Bus method"
3438
for c in tcp_server.clients.values():
2120
for c in tcp_server.clients:
3439
2121
if c.dbus_object_path == object_path:
3440
del tcp_server.clients[c.name]
2122
tcp_server.clients.remove(c)
3441
2123
c.remove_from_connection()
3442
# Don't signal the disabling
2124
# Don't signal anything except ClientRemoved
3443
2125
c.disable(quiet=True)
3444
# Emit D-Bus signal for removal
3445
self.client_removed_signal(c)
2126
# Emit D-Bus signal
2127
self.ClientRemoved(object_path, c.name)
3446
2128
return
3447
2129
raise KeyError(object_path)
3448
2130
3449
2131
del _interface
3450
3451
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3452
out_signature="a{oa{sa{sv}}}")
3453
def GetManagedObjects(self):
3454
"""D-Bus method"""
3455
return dbus.Dictionary(
3456
{client.dbus_object_path:
3457
dbus.Dictionary(
3458
{interface: client.GetAll(interface)
3459
for interface in
3460
client._get_all_interface_names()})
3461
for client in tcp_server.clients.values()})
3462
3463
def client_added_signal(self, client):
3464
"""Send the new standard signal and the old signal"""
3465
if use_dbus:
3466
# New standard signal
3467
self.InterfacesAdded(
3468
client.dbus_object_path,
3469
dbus.Dictionary(
3470
{interface: client.GetAll(interface)
3471
for interface in
3472
client._get_all_interface_names()}))
3473
# Old signal
3474
self.ClientAdded(client.dbus_object_path)
3475
3476
def client_removed_signal(self, client):
3477
"""Send the new standard signal and the old signal"""
3478
if use_dbus:
3479
# New standard signal
3480
self.InterfacesRemoved(
3481
client.dbus_object_path,
3482
client._get_all_interface_names())
3483
# Old signal
3484
self.ClientRemoved(client.dbus_object_path,
3485
client.name)
3486
3487
mandos_dbus_service = MandosDBusService()
3488
3489
# Save modules to variables to exempt the modules from being
3490
# unloaded before the function registered with atexit() is run.
3491
mp = multiprocessing
3492
wn = wnull
3493
2132
2133
class MandosDBusServiceTransitional(MandosDBusService):
2134
__metaclass__ = AlternateDBusNamesMetaclass
2135
mandos_dbus_service = MandosDBusServiceTransitional()
2136
3494
2137
def cleanup():
3495
2138
"Cleanup function; run on exit"
3496
if zeroconf:
3497
service.cleanup()
3498
3499
mp.active_children()
3500
wn.close()
3501
if not (tcp_server.clients or client_settings):
3502
return
3503
3504
# Store client before exiting. Secrets are encrypted with key
3505
# based on what config file has. If config file is
3506
# removed/edited, old secret will thus be unrecovable.
3507
clients = {}
3508
with PGPEngine() as pgp:
3509
for client in tcp_server.clients.values():
3510
key = client_settings[client.name]["secret"]
3511
client.encrypted_secret = pgp.encrypt(client.secret,
3512
key)
3513
client_dict = {}
3514
3515
# A list of attributes that can not be pickled
3516
# + secret.
3517
exclude = {"bus", "changedstate", "secret",
3518
"checker", "server_settings"}
3519
for name, typ in inspect.getmembers(dbus.service
3520
.Object):
3521
exclude.add(name)
3522
3523
client_dict["encrypted_secret"] = (client
3524
.encrypted_secret)
3525
for attr in client.client_structure:
3526
if attr not in exclude:
3527
client_dict[attr] = getattr(client, attr)
3528
3529
clients[client.name] = client_dict
3530
del client_settings[client.name]["secret"]
3531
3532
try:
3533
with tempfile.NamedTemporaryFile(
3534
mode='wb',
3535
suffix=".pickle",
3536
prefix='clients-',
3537
dir=os.path.dirname(stored_state_path),
3538
delete=False) as stored_state:
3539
pickle.dump((clients, client_settings), stored_state,
3540
protocol=2)
3541
tempname = stored_state.name
3542
os.rename(tempname, stored_state_path)
3543
except (IOError, OSError) as e:
3544
if not debug:
3545
try:
3546
os.remove(tempname)
3547
except NameError:
3548
pass
3549
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3550
logger.warning("Could not save persistent state: {}"
3551
.format(os.strerror(e.errno)))
3552
else:
3553
logger.warning("Could not save persistent state:",
3554
exc_info=e)
3555
raise
3556
3557
# Delete all clients, and settings from config
2139
service.cleanup()
2140
2141
multiprocessing.active_children()
3558
2142
while tcp_server.clients:
3559
name, client = tcp_server.clients.popitem()
2143
client = tcp_server.clients.pop()
3560
2144
if use_dbus:
3561
2145
client.remove_from_connection()
3562
# Don't signal the disabling
2146
client.disable_hook = None
2147
# Don't signal anything except ClientRemoved
3563
2148
client.disable(quiet=True)
3564
# Emit D-Bus signal for removal
3565
2149
if use_dbus:
3566
mandos_dbus_service.client_removed_signal(client)
3567
client_settings.clear()
3568
2150
# Emit D-Bus signal
2151
mandos_dbus_service.ClientRemoved(client
2152
.dbus_object_path,
2153
client.name)
2154
3569
2155
atexit.register(cleanup)
3570
3571
for client in tcp_server.clients.values():
2156
2157
for client in tcp_server.clients:
3572
2158
if use_dbus:
3573
# Emit D-Bus signal for adding
3574
mandos_dbus_service.client_added_signal(client)
3575
# Need to initiate checking of clients
3576
if client.enabled:
3577
client.init_checker()
3578
2159
# Emit D-Bus signal
2160
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2161
client.enable()
2162
3579
2163
tcp_server.enable()
3580
2164
tcp_server.server_activate()
3581
2165
3582
2166
# Find out what port we got
3583
if zeroconf:
3584
service.port = tcp_server.socket.getsockname()[1]
2167
service.port = tcp_server.socket.getsockname()[1]
3585
2168
if use_ipv6:
3586
2169
logger.info("Now listening on address %r, port %d,"
3587
" flowinfo %d, scope_id %d",
3588
*tcp_server.socket.getsockname())
2170
" flowinfo %d, scope_id %d"
2171
% tcp_server.socket.getsockname())
3589
2172
else: # IPv4
3590
logger.info("Now listening on address %r, port %d",
3591
*tcp_server.socket.getsockname())
3592
3593
# service.interface = tcp_server.socket.getsockname()[3]
3594
2173
logger.info("Now listening on address %r, port %d"
2174
% tcp_server.socket.getsockname())
2175
2176
#service.interface = tcp_server.socket.getsockname()[3]
2177
3595
2178
try:
3596
if zeroconf:
3597
# From the Avahi example code
3598
try:
3599
service.activate()
3600
except dbus.exceptions.DBusException as error:
3601
logger.critical("D-Bus Exception", exc_info=error)
3602
cleanup()
3603
sys.exit(1)
3604
# End of Avahi example code
3605
3606
GLib.io_add_watch(
3607
GLib.IOChannel.unix_new(tcp_server.fileno()),
3608
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3609
lambda *args, **kwargs: (tcp_server.handle_request
3610
(*args[2:], **kwargs) or True))
3611
2179
# From the Avahi example code
2180
try:
2181
service.activate()
2182
except dbus.exceptions.DBusException as error:
2183
logger.critical("DBusException: %s", error)
2184
cleanup()
2185
sys.exit(1)
2186
# End of Avahi example code
2187
2188
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2189
lambda *args, **kwargs:
2190
(tcp_server.handle_request
2191
(*args[2:], **kwargs) or True))
2192
3612
2193
logger.debug("Starting main loop")
3613
2194
main_loop.run()
3614
2195
except AvahiError as error:
3615
logger.critical("Avahi Error", exc_info=error)
2196
logger.critical("AvahiError: %s", error)
3616
2197
cleanup()
3617
2198
sys.exit(1)
3618
2199
except KeyboardInterrupt:
3623
2204
# Must run before the D-Bus bus name gets deregistered
3624
2205
cleanup()
3625
2206
3626
3627
def should_only_run_tests():
3628
parser = argparse.ArgumentParser(add_help=False)
3629
parser.add_argument("--check", action='store_true')
3630
args, unknown_args = parser.parse_known_args()
3631
run_tests = args.check
3632
if run_tests:
3633
# Remove --check argument from sys.argv
3634
sys.argv[1:] = unknown_args
3635
return run_tests
3636
3637
# Add all tests from doctest strings
3638
def load_tests(loader, tests, none):
3639
import doctest
3640
tests.addTests(doctest.DocTestSuite())
3641
return tests
3642
2207
3643
2208
if __name__ == '__main__':
3644
try:
3645
if should_only_run_tests():
3646
# Call using ./mandos --check [--verbose]
3647
unittest.main()
3648
else:
3649
main()
3650
finally:
3651
logging.shutdown()
2209
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0