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- Committer: teddy at recompile
- Date: 2020-04-08 19:15:13 UTC
- mfrom: (237.4.130 release)
- Revision ID: teddy@recompile.se-20200408191513-n0ke303478rw1g0b
Merge from release branch
- files added:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- plugin-helpers
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
31
32
# Contact the authors at <mandos@recompile.se>.
32
#
33
#
33
34
34
35
from __future__ import (division, absolute_import, print_function,
35
36
unicode_literals)
36
37
37
import SocketServer as socketserver
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
38
47
import socket
39
48
import argparse
40
49
import datetime
41
50
import errno
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
49
55
import sys
50
56
import re
51
57
import os
60
66
import struct
61
67
import fcntl
62
68
import functools
63
import cPickle as pickle
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
64
73
import multiprocessing
65
74
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
import shlex
66
83
67
84
import dbus
68
85
import dbus.service
69
import gobject
70
import avahi
86
import gi
87
from gi.repository import GLib
71
88
from dbus.mainloop.glib import DBusGMainLoop
72
89
import ctypes
73
90
import ctypes.util
74
91
import xml.dom.minidom
75
92
import inspect
76
93
77
try:
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
78
122
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
79
123
except AttributeError:
80
124
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
81
127
from IN import SO_BINDTODEVICE
82
128
except ImportError:
83
SO_BINDTODEVICE = None
84
85
86
version = "1.4.1"
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.11"
147
stored_state_file = "clients.pickle"
87
148
88
149
logger = logging.getLogger()
89
syslogger = (logging.handlers.SysLogHandler
90
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
91
address = str("/dev/log")))
92
syslogger.setFormatter(logging.Formatter
93
('Mandos [%(process)d]: %(levelname)s:'
94
' %(message)s'))
95
logger.addHandler(syslogger)
96
97
console = logging.StreamHandler()
98
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
99
' [%(process)d]:'
100
' %(levelname)s:'
101
' %(message)s'))
102
logger.addHandler(console)
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
152
153
try:
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
156
except (OSError, AttributeError):
157
158
def if_nametoindex(interface):
159
"Get an interface index the hard way, i.e. using fcntl()"
160
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
161
with contextlib.closing(socket.socket()) as s:
162
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
165
return interface_index
166
167
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
184
def initlogger(debug, level=logging.WARNING):
185
"""init logger and add loglevel"""
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
191
syslogger.setFormatter(logging.Formatter
192
('Mandos [%(process)d]: %(levelname)s:'
193
' %(message)s'))
194
logger.addHandler(syslogger)
195
196
if debug:
197
console = logging.StreamHandler()
198
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
199
' [%(process)d]:'
200
' %(levelname)s:'
201
' %(message)s'))
202
logger.addHandler(console)
203
logger.setLevel(level)
204
205
206
class PGPError(Exception):
207
"""Exception if encryption/decryption fails"""
208
pass
209
210
211
class PGPEngine:
212
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
214
def __init__(self):
215
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ['--batch',
228
'--homedir', self.tempdir,
229
'--force-mdc',
230
'--quiet']
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
235
def __enter__(self):
236
return self
237
238
def __exit__(self, exc_type, exc_value, traceback):
239
self._cleanup()
240
return False
241
242
def __del__(self):
243
self._cleanup()
244
245
def _cleanup(self):
246
if self.tempdir is not None:
247
# Delete contents of tempdir
248
for root, dirs, files in os.walk(self.tempdir,
249
topdown=False):
250
for filename in files:
251
os.remove(os.path.join(root, filename))
252
for dirname in dirs:
253
os.rmdir(os.path.join(root, dirname))
254
# Remove tempdir
255
os.rmdir(self.tempdir)
256
self.tempdir = None
257
258
def password_encode(self, password):
259
# Passphrase can not be empty and can not contain newlines or
260
# NUL bytes. So we prefix it and hex encode it.
261
encoded = b"mandos" + binascii.hexlify(password)
262
if len(encoded) > 2048:
263
# GnuPG can't handle long passwords, so encode differently
264
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
265
.replace(b"\n", b"\\n")
266
.replace(b"\0", b"\\x00"))
267
return encoded
268
269
def encrypt(self, data, password):
270
passphrase = self.password_encode(password)
271
with tempfile.NamedTemporaryFile(
272
dir=self.tempdir) as passfile:
273
passfile.write(passphrase)
274
passfile.flush()
275
proc = subprocess.Popen([self.gpg, '--symmetric',
276
'--passphrase-file',
277
passfile.name]
278
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
283
if proc.returncode != 0:
284
raise PGPError(err)
285
return ciphertext
286
287
def decrypt(self, data, password):
288
passphrase = self.password_encode(password)
289
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
291
passfile.write(passphrase)
292
passfile.flush()
293
proc = subprocess.Popen([self.gpg, '--decrypt',
294
'--passphrase-file',
295
passfile.name]
296
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
301
if proc.returncode != 0:
302
raise PGPError(err)
303
return decrypted_plaintext
304
305
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
103
330
104
331
105
332
class AvahiError(Exception):
106
333
def __init__(self, value, *args, **kwargs):
107
334
self.value = value
108
super(AvahiError, self).__init__(value, *args, **kwargs)
109
def __unicode__(self):
110
return unicode(repr(self.value))
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
111
338
112
339
class AvahiServiceError(AvahiError):
113
340
pass
114
341
342
115
343
class AvahiGroupError(AvahiError):
116
344
pass
117
345
118
346
119
class AvahiService(object):
347
class AvahiService:
120
348
"""An Avahi (Zeroconf) service.
121
349
122
350
Attributes:
123
351
interface: integer; avahi.IF_UNSPEC or an interface index.
124
352
Used to optionally bind to the specified interface.
125
353
name: string; Example: 'Mandos'
126
354
type: string; Example: '_mandos._tcp'.
127
See <http://www.dns-sd.org/ServiceTypes.html>
355
See <https://www.iana.org/assignments/service-names-port-numbers>
128
356
port: integer; what port to announce
129
357
TXT: list of strings; TXT record for the service
130
358
domain: string; Domain to publish on, default to .local if empty.
136
364
server: D-Bus Server
137
365
bus: dbus.SystemBus()
138
366
"""
139
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
140
servicetype = None, port = None, TXT = None,
141
domain = "", host = "", max_renames = 32768,
142
protocol = avahi.PROTO_UNSPEC, bus = None):
367
368
def __init__(self,
369
interface=avahi.IF_UNSPEC,
370
name=None,
371
servicetype=None,
372
port=None,
373
TXT=None,
374
domain="",
375
host="",
376
max_renames=32768,
377
protocol=avahi.PROTO_UNSPEC,
378
bus=None):
143
379
self.interface = interface
144
380
self.name = name
145
381
self.type = servicetype
154
390
self.server = None
155
391
self.bus = bus
156
392
self.entry_group_state_changed_match = None
157
def rename(self):
393
394
def rename(self, remove=True):
158
395
"""Derived from the Avahi example code"""
159
396
if self.rename_count >= self.max_renames:
160
397
logger.critical("No suitable Zeroconf service name found"
161
398
" after %i retries, exiting.",
162
399
self.rename_count)
163
400
raise AvahiServiceError("Too many renames")
164
self.name = unicode(self.server
165
.GetAlternativeServiceName(self.name))
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
166
404
logger.info("Changing Zeroconf service name to %r ...",
167
405
self.name)
168
self.remove()
406
if remove:
407
self.remove()
169
408
try:
170
409
self.add()
171
410
except dbus.exceptions.DBusException as error:
172
logger.critical("DBusException: %s", error)
173
self.cleanup()
174
os._exit(1)
175
self.rename_count += 1
411
if (error.get_dbus_name()
412
== "org.freedesktop.Avahi.CollisionError"):
413
logger.info("Local Zeroconf service name collision.")
414
return self.rename(remove=False)
415
else:
416
logger.critical("D-Bus Exception", exc_info=error)
417
self.cleanup()
418
os._exit(1)
419
176
420
def remove(self):
177
421
"""Derived from the Avahi example code"""
178
422
if self.entry_group_state_changed_match is not None:
180
424
self.entry_group_state_changed_match = None
181
425
if self.group is not None:
182
426
self.group.Reset()
427
183
428
def add(self):
184
429
"""Derived from the Avahi example code"""
185
430
self.remove()
202
447
dbus.UInt16(self.port),
203
448
avahi.string_array_to_txt_array(self.TXT))
204
449
self.group.Commit()
450
205
451
def entry_group_state_changed(self, state, error):
206
452
"""Derived from the Avahi example code"""
207
453
logger.debug("Avahi entry group state change: %i", state)
208
454
209
455
if state == avahi.ENTRY_GROUP_ESTABLISHED:
210
456
logger.debug("Zeroconf service established.")
211
457
elif state == avahi.ENTRY_GROUP_COLLISION:
213
459
self.rename()
214
460
elif state == avahi.ENTRY_GROUP_FAILURE:
215
461
logger.critical("Avahi: Error in group state changed %s",
216
unicode(error))
217
raise AvahiGroupError("State changed: %s"
218
% unicode(error))
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
219
465
def cleanup(self):
220
466
"""Derived from the Avahi example code"""
221
467
if self.group is not None:
222
468
try:
223
469
self.group.Free()
224
470
except (dbus.exceptions.UnknownMethodException,
225
dbus.exceptions.DBusException) as e:
471
dbus.exceptions.DBusException):
226
472
pass
227
473
self.group = None
228
474
self.remove()
475
229
476
def server_state_changed(self, state, error=None):
230
477
"""Derived from the Avahi example code"""
231
478
logger.debug("Avahi server state change: %i", state)
232
bad_states = { avahi.SERVER_INVALID:
233
"Zeroconf server invalid",
234
avahi.SERVER_REGISTERING: None,
235
avahi.SERVER_COLLISION:
236
"Zeroconf server name collision",
237
avahi.SERVER_FAILURE:
238
"Zeroconf server failure" }
479
bad_states = {
480
avahi.SERVER_INVALID: "Zeroconf server invalid",
481
avahi.SERVER_REGISTERING: None,
482
avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
avahi.SERVER_FAILURE: "Zeroconf server failure",
484
}
239
485
if state in bad_states:
240
486
if bad_states[state] is not None:
241
487
if error is None:
244
490
logger.error(bad_states[state] + ": %r", error)
245
491
self.cleanup()
246
492
elif state == avahi.SERVER_RUNNING:
247
self.add()
493
try:
494
self.add()
495
except dbus.exceptions.DBusException as error:
496
if (error.get_dbus_name()
497
== "org.freedesktop.Avahi.CollisionError"):
498
logger.info("Local Zeroconf service name"
499
" collision.")
500
return self.rename(remove=False)
501
else:
502
logger.critical("D-Bus Exception", exc_info=error)
503
self.cleanup()
504
os._exit(1)
248
505
else:
249
506
if error is None:
250
507
logger.debug("Unknown state: %r", state)
251
508
else:
252
509
logger.debug("Unknown state: %r: %r", state, error)
510
253
511
def activate(self):
254
512
"""Derived from the Avahi example code"""
255
513
if self.server is None:
259
517
follow_name_owner_changes=True),
260
518
avahi.DBUS_INTERFACE_SERVER)
261
519
self.server.connect_to_signal("StateChanged",
262
self.server_state_changed)
520
self.server_state_changed)
263
521
self.server_state_changed(self.server.GetState())
264
522
523
265
524
class AvahiServiceToSyslog(AvahiService):
266
def rename(self):
525
def rename(self, *args, **kwargs):
267
526
"""Add the new name to the syslog messages"""
268
ret = AvahiService.rename(self)
269
syslogger.setFormatter(logging.Formatter
270
('Mandos (%s) [%%(process)d]:'
271
' %%(levelname)s: %%(message)s'
272
% self.name))
527
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
528
syslogger.setFormatter(logging.Formatter(
529
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
530
.format(self.name)))
273
531
return ret
274
532
275
def _timedelta_to_milliseconds(td):
276
"Convert a datetime.timedelta() to milliseconds"
277
return ((td.days * 24 * 60 * 60 * 1000)
278
+ (td.seconds * 1000)
279
+ (td.microseconds // 1000))
280
281
class Client(object):
533
534
# Pretend that we have a GnuTLS module
535
class gnutls:
536
"""This isn't so much a class as it is a module-like namespace."""
537
538
library = ctypes.util.find_library("gnutls")
539
if library is None:
540
library = ctypes.util.find_library("gnutls-deb0")
541
_library = ctypes.cdll.LoadLibrary(library)
542
del library
543
544
# Unless otherwise indicated, the constants and types below are
545
# all from the gnutls/gnutls.h C header file.
546
547
# Constants
548
E_SUCCESS = 0
549
E_INTERRUPTED = -52
550
E_AGAIN = -28
551
CRT_OPENPGP = 2
552
CRT_RAWPK = 3
553
CLIENT = 2
554
SHUT_RDWR = 0
555
CRD_CERTIFICATE = 1
556
E_NO_CERTIFICATE_FOUND = -49
557
X509_FMT_DER = 0
558
NO_TICKETS = 1<<10
559
ENABLE_RAWPK = 1<<18
560
CTYPE_PEERS = 3
561
KEYID_USE_SHA256 = 1 # gnutls/x509.h
562
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
563
564
# Types
565
class session_int(ctypes.Structure):
566
_fields_ = []
567
session_t = ctypes.POINTER(session_int)
568
569
class certificate_credentials_st(ctypes.Structure):
570
_fields_ = []
571
certificate_credentials_t = ctypes.POINTER(
572
certificate_credentials_st)
573
certificate_type_t = ctypes.c_int
574
575
class datum_t(ctypes.Structure):
576
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
577
('size', ctypes.c_uint)]
578
579
class openpgp_crt_int(ctypes.Structure):
580
_fields_ = []
581
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
582
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
583
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
584
credentials_type_t = ctypes.c_int
585
transport_ptr_t = ctypes.c_void_p
586
close_request_t = ctypes.c_int
587
588
# Exceptions
589
class Error(Exception):
590
def __init__(self, message=None, code=None, args=()):
591
# Default usage is by a message string, but if a return
592
# code is passed, convert it to a string with
593
# gnutls.strerror()
594
self.code = code
595
if message is None and code is not None:
596
message = gnutls.strerror(code)
597
return super(gnutls.Error, self).__init__(
598
message, *args)
599
600
class CertificateSecurityError(Error):
601
pass
602
603
# Classes
604
class Credentials:
605
def __init__(self):
606
self._c_object = gnutls.certificate_credentials_t()
607
gnutls.certificate_allocate_credentials(
608
ctypes.byref(self._c_object))
609
self.type = gnutls.CRD_CERTIFICATE
610
611
def __del__(self):
612
gnutls.certificate_free_credentials(self._c_object)
613
614
class ClientSession:
615
def __init__(self, socket, credentials=None):
616
self._c_object = gnutls.session_t()
617
gnutls_flags = gnutls.CLIENT
618
if gnutls.check_version(b"3.5.6"):
619
gnutls_flags |= gnutls.NO_TICKETS
620
if gnutls.has_rawpk:
621
gnutls_flags |= gnutls.ENABLE_RAWPK
622
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
623
del gnutls_flags
624
gnutls.set_default_priority(self._c_object)
625
gnutls.transport_set_ptr(self._c_object, socket.fileno())
626
gnutls.handshake_set_private_extensions(self._c_object,
627
True)
628
self.socket = socket
629
if credentials is None:
630
credentials = gnutls.Credentials()
631
gnutls.credentials_set(self._c_object, credentials.type,
632
ctypes.cast(credentials._c_object,
633
ctypes.c_void_p))
634
self.credentials = credentials
635
636
def __del__(self):
637
gnutls.deinit(self._c_object)
638
639
def handshake(self):
640
return gnutls.handshake(self._c_object)
641
642
def send(self, data):
643
data = bytes(data)
644
data_len = len(data)
645
while data_len > 0:
646
data_len -= gnutls.record_send(self._c_object,
647
data[-data_len:],
648
data_len)
649
650
def bye(self):
651
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
652
653
# Error handling functions
654
def _error_code(result):
655
"""A function to raise exceptions on errors, suitable
656
for the 'restype' attribute on ctypes functions"""
657
if result >= 0:
658
return result
659
if result == gnutls.E_NO_CERTIFICATE_FOUND:
660
raise gnutls.CertificateSecurityError(code=result)
661
raise gnutls.Error(code=result)
662
663
def _retry_on_error(result, func, arguments):
664
"""A function to retry on some errors, suitable
665
for the 'errcheck' attribute on ctypes functions"""
666
while result < 0:
667
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
668
return _error_code(result)
669
result = func(*arguments)
670
return result
671
672
# Unless otherwise indicated, the function declarations below are
673
# all from the gnutls/gnutls.h C header file.
674
675
# Functions
676
priority_set_direct = _library.gnutls_priority_set_direct
677
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
678
ctypes.POINTER(ctypes.c_char_p)]
679
priority_set_direct.restype = _error_code
680
681
init = _library.gnutls_init
682
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
683
init.restype = _error_code
684
685
set_default_priority = _library.gnutls_set_default_priority
686
set_default_priority.argtypes = [session_t]
687
set_default_priority.restype = _error_code
688
689
record_send = _library.gnutls_record_send
690
record_send.argtypes = [session_t, ctypes.c_void_p,
691
ctypes.c_size_t]
692
record_send.restype = ctypes.c_ssize_t
693
record_send.errcheck = _retry_on_error
694
695
certificate_allocate_credentials = (
696
_library.gnutls_certificate_allocate_credentials)
697
certificate_allocate_credentials.argtypes = [
698
ctypes.POINTER(certificate_credentials_t)]
699
certificate_allocate_credentials.restype = _error_code
700
701
certificate_free_credentials = (
702
_library.gnutls_certificate_free_credentials)
703
certificate_free_credentials.argtypes = [
704
certificate_credentials_t]
705
certificate_free_credentials.restype = None
706
707
handshake_set_private_extensions = (
708
_library.gnutls_handshake_set_private_extensions)
709
handshake_set_private_extensions.argtypes = [session_t,
710
ctypes.c_int]
711
handshake_set_private_extensions.restype = None
712
713
credentials_set = _library.gnutls_credentials_set
714
credentials_set.argtypes = [session_t, credentials_type_t,
715
ctypes.c_void_p]
716
credentials_set.restype = _error_code
717
718
strerror = _library.gnutls_strerror
719
strerror.argtypes = [ctypes.c_int]
720
strerror.restype = ctypes.c_char_p
721
722
certificate_type_get = _library.gnutls_certificate_type_get
723
certificate_type_get.argtypes = [session_t]
724
certificate_type_get.restype = _error_code
725
726
certificate_get_peers = _library.gnutls_certificate_get_peers
727
certificate_get_peers.argtypes = [session_t,
728
ctypes.POINTER(ctypes.c_uint)]
729
certificate_get_peers.restype = ctypes.POINTER(datum_t)
730
731
global_set_log_level = _library.gnutls_global_set_log_level
732
global_set_log_level.argtypes = [ctypes.c_int]
733
global_set_log_level.restype = None
734
735
global_set_log_function = _library.gnutls_global_set_log_function
736
global_set_log_function.argtypes = [log_func]
737
global_set_log_function.restype = None
738
739
deinit = _library.gnutls_deinit
740
deinit.argtypes = [session_t]
741
deinit.restype = None
742
743
handshake = _library.gnutls_handshake
744
handshake.argtypes = [session_t]
745
handshake.restype = _error_code
746
handshake.errcheck = _retry_on_error
747
748
transport_set_ptr = _library.gnutls_transport_set_ptr
749
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
750
transport_set_ptr.restype = None
751
752
bye = _library.gnutls_bye
753
bye.argtypes = [session_t, close_request_t]
754
bye.restype = _error_code
755
bye.errcheck = _retry_on_error
756
757
check_version = _library.gnutls_check_version
758
check_version.argtypes = [ctypes.c_char_p]
759
check_version.restype = ctypes.c_char_p
760
761
_need_version = b"3.3.0"
762
if check_version(_need_version) is None:
763
raise self.Error("Needs GnuTLS {} or later"
764
.format(_need_version))
765
766
_tls_rawpk_version = b"3.6.6"
767
has_rawpk = bool(check_version(_tls_rawpk_version))
768
769
if has_rawpk:
770
# Types
771
class pubkey_st(ctypes.Structure):
772
_fields = []
773
pubkey_t = ctypes.POINTER(pubkey_st)
774
775
x509_crt_fmt_t = ctypes.c_int
776
777
# All the function declarations below are from gnutls/abstract.h
778
pubkey_init = _library.gnutls_pubkey_init
779
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
780
pubkey_init.restype = _error_code
781
782
pubkey_import = _library.gnutls_pubkey_import
783
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
784
x509_crt_fmt_t]
785
pubkey_import.restype = _error_code
786
787
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
788
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
789
ctypes.POINTER(ctypes.c_ubyte),
790
ctypes.POINTER(ctypes.c_size_t)]
791
pubkey_get_key_id.restype = _error_code
792
793
pubkey_deinit = _library.gnutls_pubkey_deinit
794
pubkey_deinit.argtypes = [pubkey_t]
795
pubkey_deinit.restype = None
796
else:
797
# All the function declarations below are from gnutls/openpgp.h
798
799
openpgp_crt_init = _library.gnutls_openpgp_crt_init
800
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
801
openpgp_crt_init.restype = _error_code
802
803
openpgp_crt_import = _library.gnutls_openpgp_crt_import
804
openpgp_crt_import.argtypes = [openpgp_crt_t,
805
ctypes.POINTER(datum_t),
806
openpgp_crt_fmt_t]
807
openpgp_crt_import.restype = _error_code
808
809
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
810
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
811
ctypes.POINTER(ctypes.c_uint)]
812
openpgp_crt_verify_self.restype = _error_code
813
814
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
815
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
816
openpgp_crt_deinit.restype = None
817
818
openpgp_crt_get_fingerprint = (
819
_library.gnutls_openpgp_crt_get_fingerprint)
820
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
821
ctypes.c_void_p,
822
ctypes.POINTER(
823
ctypes.c_size_t)]
824
openpgp_crt_get_fingerprint.restype = _error_code
825
826
if check_version(b"3.6.4"):
827
certificate_type_get2 = _library.gnutls_certificate_type_get2
828
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
829
certificate_type_get2.restype = _error_code
830
831
# Remove non-public functions
832
del _error_code, _retry_on_error
833
834
835
def call_pipe(connection, # : multiprocessing.Connection
836
func, *args, **kwargs):
837
"""This function is meant to be called by multiprocessing.Process
838
839
This function runs func(*args, **kwargs), and writes the resulting
840
return value on the provided multiprocessing.Connection.
841
"""
842
connection.send(func(*args, **kwargs))
843
connection.close()
844
845
846
class Client:
282
847
"""A representation of a client host served by this server.
283
848
284
849
Attributes:
285
_approved: bool(); 'None' if not yet approved/disapproved
850
approved: bool(); 'None' if not yet approved/disapproved
286
851
approval_delay: datetime.timedelta(); Time to wait for approval
287
852
approval_duration: datetime.timedelta(); Duration of one approval
288
checker: subprocess.Popen(); a running checker process used
289
to see if the client lives.
290
'None' if no process is running.
291
checker_callback_tag: a gobject event source tag, or None
853
checker: multiprocessing.Process(); a running checker process used
854
to see if the client lives. 'None' if no process is
855
running.
856
checker_callback_tag: a GLib event source tag, or None
292
857
checker_command: string; External command which is run to check
293
858
if client lives. %() expansions are done at
294
859
runtime with vars(self) as dict, so that for
295
860
instance %(name)s can be used in the command.
296
checker_initiator_tag: a gobject event source tag, or None
861
checker_initiator_tag: a GLib event source tag, or None
297
862
created: datetime.datetime(); (UTC) object creation
863
client_structure: Object describing what attributes a client has
864
and is used for storing the client at exit
298
865
current_checker_command: string; current running checker_command
299
disable_hook: If set, called by disable() as disable_hook(self)
300
disable_initiator_tag: a gobject event source tag, or None
866
disable_initiator_tag: a GLib event source tag, or None
301
867
enabled: bool()
302
868
fingerprint: string (40 or 32 hexadecimal digits); used to
303
uniquely identify the client
869
uniquely identify an OpenPGP client
870
key_id: string (64 hexadecimal digits); used to uniquely identify
871
a client using raw public keys
304
872
host: string; available for use by the checker command
305
873
interval: datetime.timedelta(); How often to start a new checker
306
874
last_approval_request: datetime.datetime(); (UTC) or None
307
875
last_checked_ok: datetime.datetime(); (UTC) or None
308
last_enabled: datetime.datetime(); (UTC)
876
last_checker_status: integer between 0 and 255 reflecting exit
877
status of last checker. -1 reflects crashed
878
checker, -2 means no checker completed yet.
879
last_checker_signal: The signal which killed the last checker, if
880
last_checker_status is -1
881
last_enabled: datetime.datetime(); (UTC) or None
309
882
name: string; from the config file, used in log messages and
310
883
D-Bus identifiers
311
884
secret: bytestring; sent verbatim (over TLS) to client
312
885
timeout: datetime.timedelta(); How long from last_checked_ok
313
886
until this client is disabled
314
extended_timeout: extra long timeout when password has been sent
887
extended_timeout: extra long timeout when secret has been sent
315
888
runtime_expansions: Allowed attributes for runtime expansion.
316
889
expires: datetime.datetime(); time (UTC) when a client will be
317
890
disabled, or None
891
server_settings: The server_settings dict from main()
318
892
"""
319
893
320
894
runtime_expansions = ("approval_delay", "approval_duration",
321
"created", "enabled", "fingerprint",
322
"host", "interval", "last_checked_ok",
895
"created", "enabled", "expires", "key_id",
896
"fingerprint", "host", "interval",
897
"last_approval_request", "last_checked_ok",
323
898
"last_enabled", "name", "timeout")
324
325
def timeout_milliseconds(self):
326
"Return the 'timeout' attribute in milliseconds"
327
return _timedelta_to_milliseconds(self.timeout)
328
329
def extended_timeout_milliseconds(self):
330
"Return the 'extended_timeout' attribute in milliseconds"
331
return _timedelta_to_milliseconds(self.extended_timeout)
332
333
def interval_milliseconds(self):
334
"Return the 'interval' attribute in milliseconds"
335
return _timedelta_to_milliseconds(self.interval)
336
337
def approval_delay_milliseconds(self):
338
return _timedelta_to_milliseconds(self.approval_delay)
339
340
def __init__(self, name = None, disable_hook=None, config=None):
341
"""Note: the 'checker' key in 'config' sets the
342
'checker_command' attribute and *not* the 'checker'
343
attribute."""
899
client_defaults = {
900
"timeout": "PT5M",
901
"extended_timeout": "PT15M",
902
"interval": "PT2M",
903
"checker": "fping -q -- %%(host)s",
904
"host": "",
905
"approval_delay": "PT0S",
906
"approval_duration": "PT1S",
907
"approved_by_default": "True",
908
"enabled": "True",
909
}
910
911
@staticmethod
912
def config_parser(config):
913
"""Construct a new dict of client settings of this form:
914
{ client_name: {setting_name: value, ...}, ...}
915
with exceptions for any special settings as defined above.
916
NOTE: Must be a pure function. Must return the same result
917
value given the same arguments.
918
"""
919
settings = {}
920
for client_name in config.sections():
921
section = dict(config.items(client_name))
922
client = settings[client_name] = {}
923
924
client["host"] = section["host"]
925
# Reformat values from string types to Python types
926
client["approved_by_default"] = config.getboolean(
927
client_name, "approved_by_default")
928
client["enabled"] = config.getboolean(client_name,
929
"enabled")
930
931
# Uppercase and remove spaces from key_id and fingerprint
932
# for later comparison purposes with return value from the
933
# key_id() and fingerprint() functions
934
client["key_id"] = (section.get("key_id", "").upper()
935
.replace(" ", ""))
936
client["fingerprint"] = (section["fingerprint"].upper()
937
.replace(" ", ""))
938
if "secret" in section:
939
client["secret"] = codecs.decode(section["secret"]
940
.encode("utf-8"),
941
"base64")
942
elif "secfile" in section:
943
with open(os.path.expanduser(os.path.expandvars
944
(section["secfile"])),
945
"rb") as secfile:
946
client["secret"] = secfile.read()
947
else:
948
raise TypeError("No secret or secfile for section {}"
949
.format(section))
950
client["timeout"] = string_to_delta(section["timeout"])
951
client["extended_timeout"] = string_to_delta(
952
section["extended_timeout"])
953
client["interval"] = string_to_delta(section["interval"])
954
client["approval_delay"] = string_to_delta(
955
section["approval_delay"])
956
client["approval_duration"] = string_to_delta(
957
section["approval_duration"])
958
client["checker_command"] = section["checker"]
959
client["last_approval_request"] = None
960
client["last_checked_ok"] = None
961
client["last_checker_status"] = -2
962
963
return settings
964
965
def __init__(self, settings, name=None, server_settings=None):
344
966
self.name = name
345
if config is None:
346
config = {}
967
if server_settings is None:
968
server_settings = {}
969
self.server_settings = server_settings
970
# adding all client settings
971
for setting, value in settings.items():
972
setattr(self, setting, value)
973
974
if self.enabled:
975
if not hasattr(self, "last_enabled"):
976
self.last_enabled = datetime.datetime.utcnow()
977
if not hasattr(self, "expires"):
978
self.expires = (datetime.datetime.utcnow()
979
+ self.timeout)
980
else:
981
self.last_enabled = None
982
self.expires = None
983
347
984
logger.debug("Creating client %r", self.name)
348
# Uppercase and remove spaces from fingerprint for later
349
# comparison purposes with return value from the fingerprint()
350
# function
351
self.fingerprint = (config["fingerprint"].upper()
352
.replace(" ", ""))
985
logger.debug(" Key ID: %s", self.key_id)
353
986
logger.debug(" Fingerprint: %s", self.fingerprint)
354
if "secret" in config:
355
self.secret = config["secret"].decode("base64")
356
elif "secfile" in config:
357
with open(os.path.expanduser(os.path.expandvars
358
(config["secfile"])),
359
"rb") as secfile:
360
self.secret = secfile.read()
361
else:
362
raise TypeError("No secret or secfile for client %s"
363
% self.name)
364
self.host = config.get("host", "")
365
self.created = datetime.datetime.utcnow()
366
self.enabled = False
367
self.last_approval_request = None
368
self.last_enabled = None
369
self.last_checked_ok = None
370
self.timeout = string_to_delta(config["timeout"])
371
self.extended_timeout = string_to_delta(config
372
["extended_timeout"])
373
self.interval = string_to_delta(config["interval"])
374
self.disable_hook = disable_hook
987
self.created = settings.get("created",
988
datetime.datetime.utcnow())
989
990
# attributes specific for this server instance
375
991
self.checker = None
376
992
self.checker_initiator_tag = None
377
993
self.disable_initiator_tag = None
378
self.expires = None
379
994
self.checker_callback_tag = None
380
self.checker_command = config["checker"]
381
995
self.current_checker_command = None
382
self.last_connect = None
383
self._approved = None
384
self.approved_by_default = config.get("approved_by_default",
385
True)
996
self.approved = None
386
997
self.approvals_pending = 0
387
self.approval_delay = string_to_delta(
388
config["approval_delay"])
389
self.approval_duration = string_to_delta(
390
config["approval_duration"])
391
self.changedstate = (multiprocessing_manager
392
.Condition(multiprocessing_manager
393
.Lock()))
394
998
self.changedstate = multiprocessing_manager.Condition(
999
multiprocessing_manager.Lock())
1000
self.client_structure = [attr
1001
for attr in self.__dict__.keys()
1002
if not attr.startswith("_")]
1003
self.client_structure.append("client_structure")
1004
1005
for name, t in inspect.getmembers(
1006
type(self), lambda obj: isinstance(obj, property)):
1007
if not name.startswith("_"):
1008
self.client_structure.append(name)
1009
1010
# Send notice to process children that client state has changed
395
1011
def send_changedstate(self):
396
self.changedstate.acquire()
397
self.changedstate.notify_all()
398
self.changedstate.release()
399
1012
with self.changedstate:
1013
self.changedstate.notify_all()
1014
400
1015
def enable(self):
401
1016
"""Start this client's checker and timeout hooks"""
402
1017
if getattr(self, "enabled", False):
403
1018
# Already enabled
404
1019
return
405
self.send_changedstate()
406
# Schedule a new checker to be started an 'interval' from now,
407
# and every interval from then on.
408
self.checker_initiator_tag = (gobject.timeout_add
409
(self.interval_milliseconds(),
410
self.start_checker))
411
# Schedule a disable() when 'timeout' has passed
412
1020
self.expires = datetime.datetime.utcnow() + self.timeout
413
self.disable_initiator_tag = (gobject.timeout_add
414
(self.timeout_milliseconds(),
415
self.disable))
416
1021
self.enabled = True
417
1022
self.last_enabled = datetime.datetime.utcnow()
418
# Also start a new checker *right now*.
419
self.start_checker()
420
1023
self.init_checker()
1024
self.send_changedstate()
1025
421
1026
def disable(self, quiet=True):
422
1027
"""Disable this client."""
423
1028
if not getattr(self, "enabled", False):
424
1029
return False
425
1030
if not quiet:
426
self.send_changedstate()
427
if not quiet:
428
1031
logger.info("Disabling client %s", self.name)
429
if getattr(self, "disable_initiator_tag", False):
430
gobject.source_remove(self.disable_initiator_tag)
1032
if getattr(self, "disable_initiator_tag", None) is not None:
1033
GLib.source_remove(self.disable_initiator_tag)
431
1034
self.disable_initiator_tag = None
432
1035
self.expires = None
433
if getattr(self, "checker_initiator_tag", False):
434
gobject.source_remove(self.checker_initiator_tag)
1036
if getattr(self, "checker_initiator_tag", None) is not None:
1037
GLib.source_remove(self.checker_initiator_tag)
435
1038
self.checker_initiator_tag = None
436
1039
self.stop_checker()
437
if self.disable_hook:
438
self.disable_hook(self)
439
1040
self.enabled = False
440
# Do not run this again if called by a gobject.timeout_add
1041
if not quiet:
1042
self.send_changedstate()
1043
# Do not run this again if called by a GLib.timeout_add
441
1044
return False
442
1045
443
1046
def __del__(self):
444
self.disable_hook = None
445
1047
self.disable()
446
447
def checker_callback(self, pid, condition, command):
1048
1049
def init_checker(self):
1050
# Schedule a new checker to be started an 'interval' from now,
1051
# and every interval from then on.
1052
if self.checker_initiator_tag is not None:
1053
GLib.source_remove(self.checker_initiator_tag)
1054
self.checker_initiator_tag = GLib.timeout_add(
1055
random.randrange(int(self.interval.total_seconds() * 1000
1056
+ 1)),
1057
self.start_checker)
1058
# Schedule a disable() when 'timeout' has passed
1059
if self.disable_initiator_tag is not None:
1060
GLib.source_remove(self.disable_initiator_tag)
1061
self.disable_initiator_tag = GLib.timeout_add(
1062
int(self.timeout.total_seconds() * 1000), self.disable)
1063
# Also start a new checker *right now*.
1064
self.start_checker()
1065
1066
def checker_callback(self, source, condition, connection,
1067
command):
448
1068
"""The checker has completed, so take appropriate actions."""
1069
# Read return code from connection (see call_pipe)
1070
returncode = connection.recv()
1071
connection.close()
1072
if self.checker is not None:
1073
self.checker.join()
449
1074
self.checker_callback_tag = None
450
1075
self.checker = None
451
if os.WIFEXITED(condition):
452
exitstatus = os.WEXITSTATUS(condition)
453
if exitstatus == 0:
1076
1077
if returncode >= 0:
1078
self.last_checker_status = returncode
1079
self.last_checker_signal = None
1080
if self.last_checker_status == 0:
454
1081
logger.info("Checker for %(name)s succeeded",
455
1082
vars(self))
456
1083
self.checked_ok()
457
1084
else:
458
logger.info("Checker for %(name)s failed",
459
vars(self))
1085
logger.info("Checker for %(name)s failed", vars(self))
460
1086
else:
1087
self.last_checker_status = -1
1088
self.last_checker_signal = -returncode
461
1089
logger.warning("Checker for %(name)s crashed?",
462
1090
vars(self))
463
464
def checked_ok(self, timeout=None):
465
"""Bump up the timeout for this client.
466
467
This should only be called when the client has been seen,
468
alive and well.
469
"""
1091
return False
1092
1093
def checked_ok(self):
1094
"""Assert that the client has been seen, alive and well."""
1095
self.last_checked_ok = datetime.datetime.utcnow()
1096
self.last_checker_status = 0
1097
self.last_checker_signal = None
1098
self.bump_timeout()
1099
1100
def bump_timeout(self, timeout=None):
1101
"""Bump up the timeout for this client."""
470
1102
if timeout is None:
471
1103
timeout = self.timeout
472
self.last_checked_ok = datetime.datetime.utcnow()
473
1104
if self.disable_initiator_tag is not None:
474
gobject.source_remove(self.disable_initiator_tag)
1105
GLib.source_remove(self.disable_initiator_tag)
1106
self.disable_initiator_tag = None
475
1107
if getattr(self, "enabled", False):
476
self.disable_initiator_tag = (gobject.timeout_add
477
(_timedelta_to_milliseconds
478
(timeout), self.disable))
1108
self.disable_initiator_tag = GLib.timeout_add(
1109
int(timeout.total_seconds() * 1000), self.disable)
479
1110
self.expires = datetime.datetime.utcnow() + timeout
480
1111
481
1112
def need_approval(self):
482
1113
self.last_approval_request = datetime.datetime.utcnow()
483
1114
484
1115
def start_checker(self):
485
1116
"""Start a new checker subprocess if one is not running.
486
1117
487
1118
If a checker already exists, leave it running and do
488
1119
nothing."""
489
1120
# The reason for not killing a running checker is that if we
490
# did that, then if a checker (for some reason) started
491
# running slowly and taking more than 'interval' time, the
492
# client would inevitably timeout, since no checker would get
493
# a chance to run to completion. If we instead leave running
1121
# did that, and if a checker (for some reason) started running
1122
# slowly and taking more than 'interval' time, then the client
1123
# would inevitably timeout, since no checker would get a
1124
# chance to run to completion. If we instead leave running
494
1125
# checkers alone, the checker would have to take more time
495
1126
# than 'timeout' for the client to be disabled, which is as it
496
1127
# should be.
497
498
# If a checker exists, make sure it is not a zombie
499
try:
500
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
501
except (AttributeError, OSError) as error:
502
if (isinstance(error, OSError)
503
and error.errno != errno.ECHILD):
504
raise error
505
else:
506
if pid:
507
logger.warning("Checker was a zombie")
508
gobject.source_remove(self.checker_callback_tag)
509
self.checker_callback(pid, status,
510
self.current_checker_command)
1128
1129
if self.checker is not None and not self.checker.is_alive():
1130
logger.warning("Checker was not alive; joining")
1131
self.checker.join()
1132
self.checker = None
511
1133
# Start a new checker if needed
512
1134
if self.checker is None:
1135
# Escape attributes for the shell
1136
escaped_attrs = {
1137
attr: shlex.quote(str(getattr(self, attr)))
1138
for attr in self.runtime_expansions}
513
1139
try:
514
# In case checker_command has exactly one % operator
515
command = self.checker_command % self.host
516
except TypeError:
517
# Escape attributes for the shell
518
escaped_attrs = dict(
519
(attr,
520
re.escape(unicode(str(getattr(self, attr, "")),
521
errors=
522
'replace')))
523
for attr in
524
self.runtime_expansions)
525
526
try:
527
command = self.checker_command % escaped_attrs
528
except TypeError as error:
529
logger.error('Could not format string "%s":'
530
' %s', self.checker_command, error)
531
return True # Try again later
1140
command = self.checker_command % escaped_attrs
1141
except TypeError as error:
1142
logger.error('Could not format string "%s"',
1143
self.checker_command,
1144
exc_info=error)
1145
return True # Try again later
532
1146
self.current_checker_command = command
533
try:
534
logger.info("Starting checker %r for %s",
535
command, self.name)
536
# We don't need to redirect stdout and stderr, since
537
# in normal mode, that is already done by daemon(),
538
# and in debug mode we don't want to. (Stdin is
539
# always replaced by /dev/null.)
540
self.checker = subprocess.Popen(command,
541
close_fds=True,
542
shell=True, cwd="/")
543
self.checker_callback_tag = (gobject.child_watch_add
544
(self.checker.pid,
545
self.checker_callback,
546
data=command))
547
# The checker may have completed before the gobject
548
# watch was added. Check for this.
549
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
550
if pid:
551
gobject.source_remove(self.checker_callback_tag)
552
self.checker_callback(pid, status, command)
553
except OSError as error:
554
logger.error("Failed to start subprocess: %s",
555
error)
556
# Re-run this periodically if run by gobject.timeout_add
1147
logger.info("Starting checker %r for %s", command,
1148
self.name)
1149
# We don't need to redirect stdout and stderr, since
1150
# in normal mode, that is already done by daemon(),
1151
# and in debug mode we don't want to. (Stdin is
1152
# always replaced by /dev/null.)
1153
# The exception is when not debugging but nevertheless
1154
# running in the foreground; use the previously
1155
# created wnull.
1156
popen_args = {"close_fds": True,
1157
"shell": True,
1158
"cwd": "/"}
1159
if (not self.server_settings["debug"]
1160
and self.server_settings["foreground"]):
1161
popen_args.update({"stdout": wnull,
1162
"stderr": wnull})
1163
pipe = multiprocessing.Pipe(duplex=False)
1164
self.checker = multiprocessing.Process(
1165
target=call_pipe,
1166
args=(pipe[1], subprocess.call, command),
1167
kwargs=popen_args)
1168
self.checker.start()
1169
self.checker_callback_tag = GLib.io_add_watch(
1170
GLib.IOChannel.unix_new(pipe[0].fileno()),
1171
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1172
self.checker_callback, pipe[0], command)
1173
# Re-run this periodically if run by GLib.timeout_add
557
1174
return True
558
1175
559
1176
def stop_checker(self):
560
1177
"""Force the checker process, if any, to stop."""
561
1178
if self.checker_callback_tag:
562
gobject.source_remove(self.checker_callback_tag)
1179
GLib.source_remove(self.checker_callback_tag)
563
1180
self.checker_callback_tag = None
564
1181
if getattr(self, "checker", None) is None:
565
1182
return
566
1183
logger.debug("Stopping checker for %(name)s", vars(self))
567
try:
568
os.kill(self.checker.pid, signal.SIGTERM)
569
#time.sleep(0.5)
570
#if self.checker.poll() is None:
571
# os.kill(self.checker.pid, signal.SIGKILL)
572
except OSError as error:
573
if error.errno != errno.ESRCH: # No such process
574
raise
1184
self.checker.terminate()
575
1185
self.checker = None
576
1186
577
1187
578
def dbus_service_property(dbus_interface, signature="v",
579
access="readwrite", byte_arrays=False):
1188
def dbus_service_property(dbus_interface,
1189
signature="v",
1190
access="readwrite",
1191
byte_arrays=False):
580
1192
"""Decorators for marking methods of a DBusObjectWithProperties to
581
1193
become properties on the D-Bus.
582
1194
583
1195
The decorated method will be called with no arguments by "Get"
584
1196
and with one argument by "Set".
585
1197
586
1198
The parameters, where they are supported, are the same as
587
1199
dbus.service.method, except there is only "signature", since the
588
1200
type from Get() and the type sent to Set() is the same.
591
1203
# "Set" method, so we fail early here:
592
1204
if byte_arrays and signature != "ay":
593
1205
raise ValueError("Byte arrays not supported for non-'ay'"
594
" signature %r" % signature)
1206
" signature {!r}".format(signature))
1207
595
1208
def decorator(func):
596
1209
func._dbus_is_property = True
597
1210
func._dbus_interface = dbus_interface
600
1213
func._dbus_name = func.__name__
601
1214
if func._dbus_name.endswith("_dbus_property"):
602
1215
func._dbus_name = func._dbus_name[:-14]
603
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
604
return func
1216
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1217
return func
1218
1219
return decorator
1220
1221
1222
def dbus_interface_annotations(dbus_interface):
1223
"""Decorator for marking functions returning interface annotations
1224
1225
Usage:
1226
1227
@dbus_interface_annotations("org.example.Interface")
1228
def _foo(self): # Function name does not matter
1229
return {"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1231
"false"}
1232
"""
1233
1234
def decorator(func):
1235
func._dbus_is_interface = True
1236
func._dbus_interface = dbus_interface
1237
func._dbus_name = dbus_interface
1238
return func
1239
1240
return decorator
1241
1242
1243
def dbus_annotations(annotations):
1244
"""Decorator to annotate D-Bus methods, signals or properties
1245
Usage:
1246
1247
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1248
"org.freedesktop.DBus.Property."
1249
"EmitsChangedSignal": "false"})
1250
@dbus_service_property("org.example.Interface", signature="b",
1251
access="r")
1252
def Property_dbus_property(self):
1253
return dbus.Boolean(False)
1254
1255
See also the DBusObjectWithAnnotations class.
1256
"""
1257
1258
def decorator(func):
1259
func._dbus_annotations = annotations
1260
return func
1261
605
1262
return decorator
606
1263
607
1264
608
1265
class DBusPropertyException(dbus.exceptions.DBusException):
609
1266
"""A base class for D-Bus property-related exceptions
610
1267
"""
611
def __unicode__(self):
612
return unicode(str(self))
1268
pass
613
1269
614
1270
615
1271
class DBusPropertyAccessException(DBusPropertyException):
624
1280
pass
625
1281
626
1282
627
class DBusObjectWithProperties(dbus.service.Object):
1283
class DBusObjectWithAnnotations(dbus.service.Object):
1284
"""A D-Bus object with annotations.
1285
1286
Classes inheriting from this can use the dbus_annotations
1287
decorator to add annotations to methods or signals.
1288
"""
1289
1290
@staticmethod
1291
def _is_dbus_thing(thing):
1292
"""Returns a function testing if an attribute is a D-Bus thing
1293
1294
If called like _is_dbus_thing("method") it returns a function
1295
suitable for use as predicate to inspect.getmembers().
1296
"""
1297
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1298
False)
1299
1300
def _get_all_dbus_things(self, thing):
1301
"""Returns a generator of (name, attribute) pairs
1302
"""
1303
return ((getattr(athing.__get__(self), "_dbus_name", name),
1304
athing.__get__(self))
1305
for cls in self.__class__.__mro__
1306
for name, athing in
1307
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1308
1309
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1310
out_signature="s",
1311
path_keyword='object_path',
1312
connection_keyword='connection')
1313
def Introspect(self, object_path, connection):
1314
"""Overloading of standard D-Bus method.
1315
1316
Inserts annotation tags on methods and signals.
1317
"""
1318
xmlstring = dbus.service.Object.Introspect(self, object_path,
1319
connection)
1320
try:
1321
document = xml.dom.minidom.parseString(xmlstring)
1322
1323
for if_tag in document.getElementsByTagName("interface"):
1324
# Add annotation tags
1325
for typ in ("method", "signal"):
1326
for tag in if_tag.getElementsByTagName(typ):
1327
annots = dict()
1328
for name, prop in (self.
1329
_get_all_dbus_things(typ)):
1330
if (name == tag.getAttribute("name")
1331
and prop._dbus_interface
1332
== if_tag.getAttribute("name")):
1333
annots.update(getattr(
1334
prop, "_dbus_annotations", {}))
1335
for name, value in annots.items():
1336
ann_tag = document.createElement(
1337
"annotation")
1338
ann_tag.setAttribute("name", name)
1339
ann_tag.setAttribute("value", value)
1340
tag.appendChild(ann_tag)
1341
# Add interface annotation tags
1342
for annotation, value in dict(
1343
itertools.chain.from_iterable(
1344
annotations().items()
1345
for name, annotations
1346
in self._get_all_dbus_things("interface")
1347
if name == if_tag.getAttribute("name")
1348
)).items():
1349
ann_tag = document.createElement("annotation")
1350
ann_tag.setAttribute("name", annotation)
1351
ann_tag.setAttribute("value", value)
1352
if_tag.appendChild(ann_tag)
1353
# Fix argument name for the Introspect method itself
1354
if (if_tag.getAttribute("name")
1355
== dbus.INTROSPECTABLE_IFACE):
1356
for cn in if_tag.getElementsByTagName("method"):
1357
if cn.getAttribute("name") == "Introspect":
1358
for arg in cn.getElementsByTagName("arg"):
1359
if (arg.getAttribute("direction")
1360
== "out"):
1361
arg.setAttribute("name",
1362
"xml_data")
1363
xmlstring = document.toxml("utf-8")
1364
document.unlink()
1365
except (AttributeError, xml.dom.DOMException,
1366
xml.parsers.expat.ExpatError) as error:
1367
logger.error("Failed to override Introspection method",
1368
exc_info=error)
1369
return xmlstring
1370
1371
1372
class DBusObjectWithProperties(DBusObjectWithAnnotations):
628
1373
"""A D-Bus object with properties.
629
1374
630
1375
Classes inheriting from this can use the dbus_service_property
631
1376
decorator to expose methods as D-Bus properties. It exposes the
632
1377
standard Get(), Set(), and GetAll() methods on the D-Bus.
633
1378
"""
634
635
@staticmethod
636
def _is_dbus_property(obj):
637
return getattr(obj, "_dbus_is_property", False)
638
639
def _get_all_dbus_properties(self):
640
"""Returns a generator of (name, attribute) pairs
641
"""
642
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
643
for cls in self.__class__.__mro__
644
for name, prop in
645
inspect.getmembers(cls, self._is_dbus_property))
646
1379
647
1380
def _get_dbus_property(self, interface_name, property_name):
648
1381
"""Returns a bound method if one exists which is a D-Bus
649
1382
property with the specified name and interface.
650
1383
"""
651
for cls in self.__class__.__mro__:
652
for name, value in (inspect.getmembers
653
(cls, self._is_dbus_property)):
1384
for cls in self.__class__.__mro__:
1385
for name, value in inspect.getmembers(
1386
cls, self._is_dbus_thing("property")):
654
1387
if (value._dbus_name == property_name
655
1388
and value._dbus_interface == interface_name):
656
1389
return value.__get__(self)
657
1390
658
1391
# No such property
659
raise DBusPropertyNotFound(self.dbus_object_path + ":"
660
+ interface_name + "."
661
+ property_name)
662
663
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1392
raise DBusPropertyNotFound("{}:{}.{}".format(
1393
self.dbus_object_path, interface_name, property_name))
1394
1395
@classmethod
1396
def _get_all_interface_names(cls):
1397
"""Get a sequence of all interfaces supported by an object"""
1398
return (name for name in set(getattr(getattr(x, attr),
1399
"_dbus_interface", None)
1400
for x in (inspect.getmro(cls))
1401
for attr in dir(x))
1402
if name is not None)
1403
1404
@dbus.service.method(dbus.PROPERTIES_IFACE,
1405
in_signature="ss",
664
1406
out_signature="v")
665
1407
def Get(self, interface_name, property_name):
666
1408
"""Standard D-Bus property Get() method, see D-Bus standard.
672
1414
if not hasattr(value, "variant_level"):
673
1415
return value
674
1416
return type(value)(value, variant_level=value.variant_level+1)
675
1417
676
1418
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
677
1419
def Set(self, interface_name, property_name, value):
678
1420
"""Standard D-Bus property Set() method, see D-Bus standard.
684
1426
# The byte_arrays option is not supported yet on
685
1427
# signatures other than "ay".
686
1428
if prop._dbus_signature != "ay":
687
raise ValueError
688
value = dbus.ByteArray(''.join(unichr(byte)
689
for byte in value))
1429
raise ValueError("Byte arrays not supported for non-"
1430
"'ay' signature {!r}"
1431
.format(prop._dbus_signature))
1432
value = dbus.ByteArray(bytes(value))
690
1433
prop(value)
691
692
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1434
1435
@dbus.service.method(dbus.PROPERTIES_IFACE,
1436
in_signature="s",
693
1437
out_signature="a{sv}")
694
1438
def GetAll(self, interface_name):
695
1439
"""Standard D-Bus property GetAll() method, see D-Bus
696
1440
standard.
697
1441
698
1442
Note: Will not include properties with access="write".
699
1443
"""
700
all = {}
701
for name, prop in self._get_all_dbus_properties():
1444
properties = {}
1445
for name, prop in self._get_all_dbus_things("property"):
702
1446
if (interface_name
703
1447
and interface_name != prop._dbus_interface):
704
1448
# Interface non-empty but did not match
708
1452
continue
709
1453
value = prop()
710
1454
if not hasattr(value, "variant_level"):
711
all[name] = value
1455
properties[name] = value
712
1456
continue
713
all[name] = type(value)(value, variant_level=
714
value.variant_level+1)
715
return dbus.Dictionary(all, signature="sv")
716
1457
properties[name] = type(value)(
1458
value, variant_level=value.variant_level + 1)
1459
return dbus.Dictionary(properties, signature="sv")
1460
1461
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1462
def PropertiesChanged(self, interface_name, changed_properties,
1463
invalidated_properties):
1464
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1465
standard.
1466
"""
1467
pass
1468
717
1469
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
718
1470
out_signature="s",
719
1471
path_keyword='object_path',
720
1472
connection_keyword='connection')
721
1473
def Introspect(self, object_path, connection):
722
"""Standard D-Bus method, overloaded to insert property tags.
1474
"""Overloading of standard D-Bus method.
1475
1476
Inserts property tags and interface annotation tags.
723
1477
"""
724
xmlstring = dbus.service.Object.Introspect(self, object_path,
725
connection)
1478
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1479
object_path,
1480
connection)
726
1481
try:
727
1482
document = xml.dom.minidom.parseString(xmlstring)
1483
728
1484
def make_tag(document, name, prop):
729
1485
e = document.createElement("property")
730
1486
e.setAttribute("name", name)
731
1487
e.setAttribute("type", prop._dbus_signature)
732
1488
e.setAttribute("access", prop._dbus_access)
733
1489
return e
1490
734
1491
for if_tag in document.getElementsByTagName("interface"):
1492
# Add property tags
735
1493
for tag in (make_tag(document, name, prop)
736
1494
for name, prop
737
in self._get_all_dbus_properties()
1495
in self._get_all_dbus_things("property")
738
1496
if prop._dbus_interface
739
1497
== if_tag.getAttribute("name")):
740
1498
if_tag.appendChild(tag)
1499
# Add annotation tags for properties
1500
for tag in if_tag.getElementsByTagName("property"):
1501
annots = dict()
1502
for name, prop in self._get_all_dbus_things(
1503
"property"):
1504
if (name == tag.getAttribute("name")
1505
and prop._dbus_interface
1506
== if_tag.getAttribute("name")):
1507
annots.update(getattr(
1508
prop, "_dbus_annotations", {}))
1509
for name, value in annots.items():
1510
ann_tag = document.createElement(
1511
"annotation")
1512
ann_tag.setAttribute("name", name)
1513
ann_tag.setAttribute("value", value)
1514
tag.appendChild(ann_tag)
741
1515
# Add the names to the return values for the
742
1516
# "org.freedesktop.DBus.Properties" methods
743
1517
if (if_tag.getAttribute("name")
758
1532
except (AttributeError, xml.dom.DOMException,
759
1533
xml.parsers.expat.ExpatError) as error:
760
1534
logger.error("Failed to override Introspection method",
761
error)
762
return xmlstring
763
764
765
def datetime_to_dbus (dt, variant_level=0):
1535
exc_info=error)
1536
return xmlstring
1537
1538
1539
try:
1540
dbus.OBJECT_MANAGER_IFACE
1541
except AttributeError:
1542
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1543
1544
1545
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1546
"""A D-Bus object with an ObjectManager.
1547
1548
Classes inheriting from this exposes the standard
1549
GetManagedObjects call and the InterfacesAdded and
1550
InterfacesRemoved signals on the standard
1551
"org.freedesktop.DBus.ObjectManager" interface.
1552
1553
Note: No signals are sent automatically; they must be sent
1554
manually.
1555
"""
1556
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1557
out_signature="a{oa{sa{sv}}}")
1558
def GetManagedObjects(self):
1559
"""This function must be overridden"""
1560
raise NotImplementedError()
1561
1562
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1563
signature="oa{sa{sv}}")
1564
def InterfacesAdded(self, object_path, interfaces_and_properties):
1565
pass
1566
1567
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1568
def InterfacesRemoved(self, object_path, interfaces):
1569
pass
1570
1571
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1572
out_signature="s",
1573
path_keyword='object_path',
1574
connection_keyword='connection')
1575
def Introspect(self, object_path, connection):
1576
"""Overloading of standard D-Bus method.
1577
1578
Override return argument name of GetManagedObjects to be
1579
"objpath_interfaces_and_properties"
1580
"""
1581
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1582
object_path,
1583
connection)
1584
try:
1585
document = xml.dom.minidom.parseString(xmlstring)
1586
1587
for if_tag in document.getElementsByTagName("interface"):
1588
# Fix argument name for the GetManagedObjects method
1589
if (if_tag.getAttribute("name")
1590
== dbus.OBJECT_MANAGER_IFACE):
1591
for cn in if_tag.getElementsByTagName("method"):
1592
if (cn.getAttribute("name")
1593
== "GetManagedObjects"):
1594
for arg in cn.getElementsByTagName("arg"):
1595
if (arg.getAttribute("direction")
1596
== "out"):
1597
arg.setAttribute(
1598
"name",
1599
"objpath_interfaces"
1600
"_and_properties")
1601
xmlstring = document.toxml("utf-8")
1602
document.unlink()
1603
except (AttributeError, xml.dom.DOMException,
1604
xml.parsers.expat.ExpatError) as error:
1605
logger.error("Failed to override Introspection method",
1606
exc_info=error)
1607
return xmlstring
1608
1609
1610
def datetime_to_dbus(dt, variant_level=0):
766
1611
"""Convert a UTC datetime.datetime() to a D-Bus type."""
767
1612
if dt is None:
768
return dbus.String("", variant_level = variant_level)
769
return dbus.String(dt.isoformat(),
770
variant_level=variant_level)
771
772
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
773
.__metaclass__):
774
"""Applied to an empty subclass of a D-Bus object, this metaclass
775
will add additional D-Bus attributes matching a certain pattern.
1613
return dbus.String("", variant_level=variant_level)
1614
return dbus.String(dt.isoformat(), variant_level=variant_level)
1615
1616
1617
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1618
"""A class decorator; applied to a subclass of
1619
dbus.service.Object, it will add alternate D-Bus attributes with
1620
interface names according to the "alt_interface_names" mapping.
1621
Usage:
1622
1623
@alternate_dbus_interfaces({"org.example.Interface":
1624
"net.example.AlternateInterface"})
1625
class SampleDBusObject(dbus.service.Object):
1626
@dbus.service.method("org.example.Interface")
1627
def SampleDBusMethod():
1628
pass
1629
1630
The above "SampleDBusMethod" on "SampleDBusObject" will be
1631
reachable via two interfaces: "org.example.Interface" and
1632
"net.example.AlternateInterface", the latter of which will have
1633
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1634
"true", unless "deprecate" is passed with a False value.
1635
1636
This works for methods and signals, and also for D-Bus properties
1637
(from DBusObjectWithProperties) and interfaces (from the
1638
dbus_interface_annotations decorator).
776
1639
"""
777
def __new__(mcs, name, bases, attr):
778
# Go through all the base classes which could have D-Bus
779
# methods, signals, or properties in them
780
for base in (b for b in bases
781
if issubclass(b, dbus.service.Object)):
782
# Go though all attributes of the base class
783
for attrname, attribute in inspect.getmembers(base):
1640
1641
def wrapper(cls):
1642
for orig_interface_name, alt_interface_name in (
1643
alt_interface_names.items()):
1644
attr = {}
1645
interface_names = set()
1646
# Go though all attributes of the class
1647
for attrname, attribute in inspect.getmembers(cls):
784
1648
# Ignore non-D-Bus attributes, and D-Bus attributes
785
1649
# with the wrong interface name
786
1650
if (not hasattr(attribute, "_dbus_interface")
787
or not attribute._dbus_interface
788
.startswith("se.recompile.Mandos")):
1651
or not attribute._dbus_interface.startswith(
1652
orig_interface_name)):
789
1653
continue
790
1654
# Create an alternate D-Bus interface name based on
791
1655
# the current name
792
alt_interface = (attribute._dbus_interface
793
.replace("se.recompile.Mandos",
794
"se.bsnet.fukt.Mandos"))
1656
alt_interface = attribute._dbus_interface.replace(
1657
orig_interface_name, alt_interface_name)
1658
interface_names.add(alt_interface)
795
1659
# Is this a D-Bus signal?
796
1660
if getattr(attribute, "_dbus_is_signal", False):
797
# Extract the original non-method function by
798
# black magic
799
nonmethod_func = (dict(
1661
# Extract the original non-method undecorated
1662
# function by black magic
1663
if sys.version_info.major == 2:
1664
nonmethod_func = (dict(
800
1665
zip(attribute.func_code.co_freevars,
801
attribute.__closure__))["func"]
802
.cell_contents)
1666
attribute.__closure__))
1667
["func"].cell_contents)
1668
else:
1669
nonmethod_func = (dict(
1670
zip(attribute.__code__.co_freevars,
1671
attribute.__closure__))
1672
["func"].cell_contents)
803
1673
# Create a new, but exactly alike, function
804
1674
# object, and decorate it to be a new D-Bus signal
805
1675
# with the alternate D-Bus interface name
806
new_function = (dbus.service.signal
807
(alt_interface,
808
attribute._dbus_signature)
809
(types.FunctionType(
810
nonmethod_func.func_code,
811
nonmethod_func.func_globals,
812
nonmethod_func.func_name,
813
nonmethod_func.func_defaults,
814
nonmethod_func.func_closure)))
1676
new_function = copy_function(nonmethod_func)
1677
new_function = (dbus.service.signal(
1678
alt_interface,
1679
attribute._dbus_signature)(new_function))
1680
# Copy annotations, if any
1681
try:
1682
new_function._dbus_annotations = dict(
1683
attribute._dbus_annotations)
1684
except AttributeError:
1685
pass
1686
815
1687
# Define a creator of a function to call both the
816
# old and new functions, so both the old and new
817
# signals gets sent when the function is called
1688
# original and alternate functions, so both the
1689
# original and alternate signals gets sent when
1690
# the function is called
818
1691
def fixscope(func1, func2):
819
1692
"""This function is a scope container to pass
820
1693
func1 and func2 to the "call_both" function
821
1694
outside of its arguments"""
1695
1696
@functools.wraps(func2)
822
1697
def call_both(*args, **kwargs):
823
1698
"""This function will emit two D-Bus
824
1699
signals by calling func1 and func2"""
825
1700
func1(*args, **kwargs)
826
1701
func2(*args, **kwargs)
1702
# Make wrapper function look like a D-Bus
1703
# signal
1704
for name, attr in inspect.getmembers(func2):
1705
if name.startswith("_dbus_"):
1706
setattr(call_both, name, attr)
1707
827
1708
return call_both
828
1709
# Create the "call_both" function and add it to
829
1710
# the class
830
attr[attrname] = fixscope(attribute,
831
new_function)
1711
attr[attrname] = fixscope(attribute, new_function)
832
1712
# Is this a D-Bus method?
833
1713
elif getattr(attribute, "_dbus_is_method", False):
834
1714
# Create a new, but exactly alike, function
835
1715
# object. Decorate it to be a new D-Bus method
836
1716
# with the alternate D-Bus interface name. Add it
837
1717
# to the class.
838
attr[attrname] = (dbus.service.method
839
(alt_interface,
840
attribute._dbus_in_signature,
841
attribute._dbus_out_signature)
842
(types.FunctionType
843
(attribute.func_code,
844
attribute.func_globals,
845
attribute.func_name,
846
attribute.func_defaults,
847
attribute.func_closure)))
1718
attr[attrname] = (
1719
dbus.service.method(
1720
alt_interface,
1721
attribute._dbus_in_signature,
1722
attribute._dbus_out_signature)
1723
(copy_function(attribute)))
1724
# Copy annotations, if any
1725
try:
1726
attr[attrname]._dbus_annotations = dict(
1727
attribute._dbus_annotations)
1728
except AttributeError:
1729
pass
848
1730
# Is this a D-Bus property?
849
1731
elif getattr(attribute, "_dbus_is_property", False):
850
1732
# Create a new, but exactly alike, function
851
1733
# object, and decorate it to be a new D-Bus
852
1734
# property with the alternate D-Bus interface
853
1735
# name. Add it to the class.
854
attr[attrname] = (dbus_service_property
855
(alt_interface,
856
attribute._dbus_signature,
857
attribute._dbus_access,
858
attribute
859
._dbus_get_args_options
860
["byte_arrays"])
861
(types.FunctionType
862
(attribute.func_code,
863
attribute.func_globals,
864
attribute.func_name,
865
attribute.func_defaults,
866
attribute.func_closure)))
867
return type.__new__(mcs, name, bases, attr)
868
1736
attr[attrname] = (dbus_service_property(
1737
alt_interface, attribute._dbus_signature,
1738
attribute._dbus_access,
1739
attribute._dbus_get_args_options
1740
["byte_arrays"])
1741
(copy_function(attribute)))
1742
# Copy annotations, if any
1743
try:
1744
attr[attrname]._dbus_annotations = dict(
1745
attribute._dbus_annotations)
1746
except AttributeError:
1747
pass
1748
# Is this a D-Bus interface?
1749
elif getattr(attribute, "_dbus_is_interface", False):
1750
# Create a new, but exactly alike, function
1751
# object. Decorate it to be a new D-Bus interface
1752
# with the alternate D-Bus interface name. Add it
1753
# to the class.
1754
attr[attrname] = (
1755
dbus_interface_annotations(alt_interface)
1756
(copy_function(attribute)))
1757
if deprecate:
1758
# Deprecate all alternate interfaces
1759
iname = "_AlternateDBusNames_interface_annotation{}"
1760
for interface_name in interface_names:
1761
1762
@dbus_interface_annotations(interface_name)
1763
def func(self):
1764
return {"org.freedesktop.DBus.Deprecated":
1765
"true"}
1766
# Find an unused name
1767
for aname in (iname.format(i)
1768
for i in itertools.count()):
1769
if aname not in attr:
1770
attr[aname] = func
1771
break
1772
if interface_names:
1773
# Replace the class with a new subclass of it with
1774
# methods, signals, etc. as created above.
1775
if sys.version_info.major == 2:
1776
cls = type(b"{}Alternate".format(cls.__name__),
1777
(cls, ), attr)
1778
else:
1779
cls = type("{}Alternate".format(cls.__name__),
1780
(cls, ), attr)
1781
return cls
1782
1783
return wrapper
1784
1785
1786
@alternate_dbus_interfaces({"se.recompile.Mandos":
1787
"se.bsnet.fukt.Mandos"})
869
1788
class ClientDBus(Client, DBusObjectWithProperties):
870
1789
"""A Client class using D-Bus
871
1790
872
1791
Attributes:
873
1792
dbus_object_path: dbus.ObjectPath
874
1793
bus: dbus.SystemBus()
875
1794
"""
876
1795
877
1796
runtime_expansions = (Client.runtime_expansions
878
+ ("dbus_object_path",))
879
1797
+ ("dbus_object_path", ))
1798
1799
_interface = "se.recompile.Mandos.Client"
1800
880
1801
# dbus.service.Object doesn't use super(), so we can't either.
881
882
def __init__(self, bus = None, *args, **kwargs):
883
self._approvals_pending = 0
1802
1803
def __init__(self, bus=None, *args, **kwargs):
884
1804
self.bus = bus
885
1805
Client.__init__(self, *args, **kwargs)
886
1806
# Only now, when this client is initialized, can it show up on
887
1807
# the D-Bus
888
client_object_name = unicode(self.name).translate(
1808
client_object_name = str(self.name).translate(
889
1809
{ord("."): ord("_"),
890
1810
ord("-"): ord("_")})
891
self.dbus_object_path = (dbus.ObjectPath
892
("/clients/" + client_object_name))
1811
self.dbus_object_path = dbus.ObjectPath(
1812
"/clients/" + client_object_name)
893
1813
DBusObjectWithProperties.__init__(self, self.bus,
894
1814
self.dbus_object_path)
895
896
def notifychangeproperty(transform_func,
897
dbus_name, type_func=lambda x: x,
898
variant_level=1):
1815
1816
def notifychangeproperty(transform_func, dbus_name,
1817
type_func=lambda x: x,
1818
variant_level=1,
1819
invalidate_only=False,
1820
_interface=_interface):
899
1821
""" Modify a variable so that it's a property which announces
900
1822
its changes to DBus.
901
1823
906
1828
to the D-Bus. Default: no transform
907
1829
variant_level: D-Bus variant level. Default: 1
908
1830
"""
909
attrname = "_{0}".format(dbus_name)
1831
attrname = "_{}".format(dbus_name)
1832
910
1833
def setter(self, value):
911
1834
if hasattr(self, "dbus_object_path"):
912
1835
if (not hasattr(self, attrname) or
913
1836
type_func(getattr(self, attrname, None))
914
1837
!= type_func(value)):
915
dbus_value = transform_func(type_func(value),
916
variant_level
917
=variant_level)
918
self.PropertyChanged(dbus.String(dbus_name),
919
dbus_value)
1838
if invalidate_only:
1839
self.PropertiesChanged(
1840
_interface, dbus.Dictionary(),
1841
dbus.Array((dbus_name, )))
1842
else:
1843
dbus_value = transform_func(
1844
type_func(value),
1845
variant_level=variant_level)
1846
self.PropertyChanged(dbus.String(dbus_name),
1847
dbus_value)
1848
self.PropertiesChanged(
1849
_interface,
1850
dbus.Dictionary({dbus.String(dbus_name):
1851
dbus_value}),
1852
dbus.Array())
920
1853
setattr(self, attrname, value)
921
1854
922
1855
return property(lambda self: getattr(self, attrname), setter)
923
924
1856
925
1857
expires = notifychangeproperty(datetime_to_dbus, "Expires")
926
1858
approvals_pending = notifychangeproperty(dbus.Boolean,
927
1859
"ApprovalPending",
928
type_func = bool)
1860
type_func=bool)
929
1861
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
930
1862
last_enabled = notifychangeproperty(datetime_to_dbus,
931
1863
"LastEnabled")
932
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
933
type_func = lambda checker:
934
checker is not None)
1864
checker = notifychangeproperty(
1865
dbus.Boolean, "CheckerRunning",
1866
type_func=lambda checker: checker is not None)
935
1867
last_checked_ok = notifychangeproperty(datetime_to_dbus,
936
1868
"LastCheckedOK")
1869
last_checker_status = notifychangeproperty(dbus.Int16,
1870
"LastCheckerStatus")
937
1871
last_approval_request = notifychangeproperty(
938
1872
datetime_to_dbus, "LastApprovalRequest")
939
1873
approved_by_default = notifychangeproperty(dbus.Boolean,
940
1874
"ApprovedByDefault")
941
approval_delay = notifychangeproperty(dbus.UInt16,
942
"ApprovalDelay",
943
type_func =
944
_timedelta_to_milliseconds)
1875
approval_delay = notifychangeproperty(
1876
dbus.UInt64, "ApprovalDelay",
1877
type_func=lambda td: td.total_seconds() * 1000)
945
1878
approval_duration = notifychangeproperty(
946
dbus.UInt16, "ApprovalDuration",
947
type_func = _timedelta_to_milliseconds)
1879
dbus.UInt64, "ApprovalDuration",
1880
type_func=lambda td: td.total_seconds() * 1000)
948
1881
host = notifychangeproperty(dbus.String, "Host")
949
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
950
type_func =
951
_timedelta_to_milliseconds)
1882
timeout = notifychangeproperty(
1883
dbus.UInt64, "Timeout",
1884
type_func=lambda td: td.total_seconds() * 1000)
952
1885
extended_timeout = notifychangeproperty(
953
dbus.UInt16, "ExtendedTimeout",
954
type_func = _timedelta_to_milliseconds)
955
interval = notifychangeproperty(dbus.UInt16,
956
"Interval",
957
type_func =
958
_timedelta_to_milliseconds)
1886
dbus.UInt64, "ExtendedTimeout",
1887
type_func=lambda td: td.total_seconds() * 1000)
1888
interval = notifychangeproperty(
1889
dbus.UInt64, "Interval",
1890
type_func=lambda td: td.total_seconds() * 1000)
959
1891
checker_command = notifychangeproperty(dbus.String, "Checker")
960
1892
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1893
invalidate_only=True)
1894
961
1895
del notifychangeproperty
962
1896
963
1897
def __del__(self, *args, **kwargs):
964
1898
try:
965
1899
self.remove_from_connection()
968
1902
if hasattr(DBusObjectWithProperties, "__del__"):
969
1903
DBusObjectWithProperties.__del__(self, *args, **kwargs)
970
1904
Client.__del__(self, *args, **kwargs)
971
972
def checker_callback(self, pid, condition, command,
973
*args, **kwargs):
974
self.checker_callback_tag = None
975
self.checker = None
976
if os.WIFEXITED(condition):
977
exitstatus = os.WEXITSTATUS(condition)
1905
1906
def checker_callback(self, source, condition,
1907
connection, command, *args, **kwargs):
1908
ret = Client.checker_callback(self, source, condition,
1909
connection, command, *args,
1910
**kwargs)
1911
exitstatus = self.last_checker_status
1912
if exitstatus >= 0:
978
1913
# Emit D-Bus signal
979
1914
self.CheckerCompleted(dbus.Int16(exitstatus),
980
dbus.Int64(condition),
1915
# This is specific to GNU libC
1916
dbus.Int64(exitstatus << 8),
981
1917
dbus.String(command))
982
1918
else:
983
1919
# Emit D-Bus signal
984
1920
self.CheckerCompleted(dbus.Int16(-1),
985
dbus.Int64(condition),
1921
dbus.Int64(
1922
# This is specific to GNU libC
1923
(exitstatus << 8)
1924
| self.last_checker_signal),
986
1925
dbus.String(command))
987
988
return Client.checker_callback(self, pid, condition, command,
989
*args, **kwargs)
990
1926
return ret
1927
991
1928
def start_checker(self, *args, **kwargs):
992
old_checker = self.checker
993
if self.checker is not None:
994
old_checker_pid = self.checker.pid
995
else:
996
old_checker_pid = None
1929
old_checker_pid = getattr(self.checker, "pid", None)
997
1930
r = Client.start_checker(self, *args, **kwargs)
998
1931
# Only if new checker process was started
999
1932
if (self.checker is not None
1001
1934
# Emit D-Bus signal
1002
1935
self.CheckerStarted(self.current_checker_command)
1003
1936
return r
1004
1937
1005
1938
def _reset_approved(self):
1006
self._approved = None
1939
self.approved = None
1007
1940
return False
1008
1941
1009
1942
def approve(self, value=True):
1943
self.approved = value
1944
GLib.timeout_add(int(self.approval_duration.total_seconds()
1945
* 1000), self._reset_approved)
1010
1946
self.send_changedstate()
1011
self._approved = value
1012
gobject.timeout_add(_timedelta_to_milliseconds
1013
(self.approval_duration),
1014
self._reset_approved)
1015
1016
1017
## D-Bus methods, signals & properties
1018
_interface = "se.recompile.Mandos.Client"
1019
1020
## Signals
1021
1947
1948
# D-Bus methods, signals & properties
1949
1950
# Interfaces
1951
1952
# Signals
1953
1022
1954
# CheckerCompleted - signal
1023
1955
@dbus.service.signal(_interface, signature="nxs")
1024
1956
def CheckerCompleted(self, exitcode, waitstatus, command):
1025
1957
"D-Bus signal"
1026
1958
pass
1027
1959
1028
1960
# CheckerStarted - signal
1029
1961
@dbus.service.signal(_interface, signature="s")
1030
1962
def CheckerStarted(self, command):
1031
1963
"D-Bus signal"
1032
1964
pass
1033
1965
1034
1966
# PropertyChanged - signal
1967
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1035
1968
@dbus.service.signal(_interface, signature="sv")
1036
1969
def PropertyChanged(self, property, value):
1037
1970
"D-Bus signal"
1038
1971
pass
1039
1972
1040
1973
# GotSecret - signal
1041
1974
@dbus.service.signal(_interface)
1042
1975
def GotSecret(self):
1045
1978
server to mandos-client
1046
1979
"""
1047
1980
pass
1048
1981
1049
1982
# Rejected - signal
1050
1983
@dbus.service.signal(_interface, signature="s")
1051
1984
def Rejected(self, reason):
1052
1985
"D-Bus signal"
1053
1986
pass
1054
1987
1055
1988
# NeedApproval - signal
1056
1989
@dbus.service.signal(_interface, signature="tb")
1057
1990
def NeedApproval(self, timeout, default):
1058
1991
"D-Bus signal"
1059
1992
return self.need_approval()
1060
1061
## Methods
1062
1993
1994
# Methods
1995
1063
1996
# Approve - method
1064
1997
@dbus.service.method(_interface, in_signature="b")
1065
1998
def Approve(self, value):
1066
1999
self.approve(value)
1067
2000
1068
2001
# CheckedOK - method
1069
2002
@dbus.service.method(_interface)
1070
2003
def CheckedOK(self):
1071
2004
self.checked_ok()
1072
2005
1073
2006
# Enable - method
2007
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1074
2008
@dbus.service.method(_interface)
1075
2009
def Enable(self):
1076
2010
"D-Bus method"
1077
2011
self.enable()
1078
2012
1079
2013
# StartChecker - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1080
2015
@dbus.service.method(_interface)
1081
2016
def StartChecker(self):
1082
2017
"D-Bus method"
1083
2018
self.start_checker()
1084
2019
1085
2020
# Disable - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1086
2022
@dbus.service.method(_interface)
1087
2023
def Disable(self):
1088
2024
"D-Bus method"
1089
2025
self.disable()
1090
2026
1091
2027
# StopChecker - method
2028
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1092
2029
@dbus.service.method(_interface)
1093
2030
def StopChecker(self):
1094
2031
self.stop_checker()
1095
1096
## Properties
1097
2032
2033
# Properties
2034
1098
2035
# ApprovalPending - property
1099
2036
@dbus_service_property(_interface, signature="b", access="read")
1100
2037
def ApprovalPending_dbus_property(self):
1101
2038
return dbus.Boolean(bool(self.approvals_pending))
1102
2039
1103
2040
# ApprovedByDefault - property
1104
@dbus_service_property(_interface, signature="b",
2041
@dbus_service_property(_interface,
2042
signature="b",
1105
2043
access="readwrite")
1106
2044
def ApprovedByDefault_dbus_property(self, value=None):
1107
2045
if value is None: # get
1108
2046
return dbus.Boolean(self.approved_by_default)
1109
2047
self.approved_by_default = bool(value)
1110
2048
1111
2049
# ApprovalDelay - property
1112
@dbus_service_property(_interface, signature="t",
2050
@dbus_service_property(_interface,
2051
signature="t",
1113
2052
access="readwrite")
1114
2053
def ApprovalDelay_dbus_property(self, value=None):
1115
2054
if value is None: # get
1116
return dbus.UInt64(self.approval_delay_milliseconds())
2055
return dbus.UInt64(self.approval_delay.total_seconds()
2056
* 1000)
1117
2057
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1118
2058
1119
2059
# ApprovalDuration - property
1120
@dbus_service_property(_interface, signature="t",
2060
@dbus_service_property(_interface,
2061
signature="t",
1121
2062
access="readwrite")
1122
2063
def ApprovalDuration_dbus_property(self, value=None):
1123
2064
if value is None: # get
1124
return dbus.UInt64(_timedelta_to_milliseconds(
1125
self.approval_duration))
2065
return dbus.UInt64(self.approval_duration.total_seconds()
2066
* 1000)
1126
2067
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1127
2068
1128
2069
# Name - property
2070
@dbus_annotations(
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1129
2072
@dbus_service_property(_interface, signature="s", access="read")
1130
2073
def Name_dbus_property(self):
1131
2074
return dbus.String(self.name)
1132
2075
2076
# KeyID - property
2077
@dbus_annotations(
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2079
@dbus_service_property(_interface, signature="s", access="read")
2080
def KeyID_dbus_property(self):
2081
return dbus.String(self.key_id)
2082
1133
2083
# Fingerprint - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1134
2086
@dbus_service_property(_interface, signature="s", access="read")
1135
2087
def Fingerprint_dbus_property(self):
1136
2088
return dbus.String(self.fingerprint)
1137
2089
1138
2090
# Host - property
1139
@dbus_service_property(_interface, signature="s",
2091
@dbus_service_property(_interface,
2092
signature="s",
1140
2093
access="readwrite")
1141
2094
def Host_dbus_property(self, value=None):
1142
2095
if value is None: # get
1143
2096
return dbus.String(self.host)
1144
self.host = value
1145
2097
self.host = str(value)
2098
1146
2099
# Created - property
2100
@dbus_annotations(
2101
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1147
2102
@dbus_service_property(_interface, signature="s", access="read")
1148
2103
def Created_dbus_property(self):
1149
return dbus.String(datetime_to_dbus(self.created))
1150
2104
return datetime_to_dbus(self.created)
2105
1151
2106
# LastEnabled - property
1152
2107
@dbus_service_property(_interface, signature="s", access="read")
1153
2108
def LastEnabled_dbus_property(self):
1154
2109
return datetime_to_dbus(self.last_enabled)
1155
2110
1156
2111
# Enabled - property
1157
@dbus_service_property(_interface, signature="b",
2112
@dbus_service_property(_interface,
2113
signature="b",
1158
2114
access="readwrite")
1159
2115
def Enabled_dbus_property(self, value=None):
1160
2116
if value is None: # get
1163
2119
self.enable()
1164
2120
else:
1165
2121
self.disable()
1166
2122
1167
2123
# LastCheckedOK - property
1168
@dbus_service_property(_interface, signature="s",
2124
@dbus_service_property(_interface,
2125
signature="s",
1169
2126
access="readwrite")
1170
2127
def LastCheckedOK_dbus_property(self, value=None):
1171
2128
if value is not None:
1172
2129
self.checked_ok()
1173
2130
return
1174
2131
return datetime_to_dbus(self.last_checked_ok)
1175
2132
2133
# LastCheckerStatus - property
2134
@dbus_service_property(_interface, signature="n", access="read")
2135
def LastCheckerStatus_dbus_property(self):
2136
return dbus.Int16(self.last_checker_status)
2137
1176
2138
# Expires - property
1177
2139
@dbus_service_property(_interface, signature="s", access="read")
1178
2140
def Expires_dbus_property(self):
1179
2141
return datetime_to_dbus(self.expires)
1180
2142
1181
2143
# LastApprovalRequest - property
1182
2144
@dbus_service_property(_interface, signature="s", access="read")
1183
2145
def LastApprovalRequest_dbus_property(self):
1184
2146
return datetime_to_dbus(self.last_approval_request)
1185
2147
1186
2148
# Timeout - property
1187
@dbus_service_property(_interface, signature="t",
2149
@dbus_service_property(_interface,
2150
signature="t",
1188
2151
access="readwrite")
1189
2152
def Timeout_dbus_property(self, value=None):
1190
2153
if value is None: # get
1191
return dbus.UInt64(self.timeout_milliseconds())
2154
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2155
old_timeout = self.timeout
1192
2156
self.timeout = datetime.timedelta(0, 0, 0, value)
1193
if getattr(self, "disable_initiator_tag", None) is None:
1194
return
1195
# Reschedule timeout
1196
gobject.source_remove(self.disable_initiator_tag)
1197
self.disable_initiator_tag = None
1198
self.expires = None
1199
time_to_die = _timedelta_to_milliseconds((self
1200
.last_checked_ok
1201
+ self.timeout)
1202
- datetime.datetime
1203
.utcnow())
1204
if time_to_die <= 0:
1205
# The timeout has passed
1206
self.disable()
1207
else:
1208
self.expires = (datetime.datetime.utcnow()
1209
+ datetime.timedelta(milliseconds =
1210
time_to_die))
1211
self.disable_initiator_tag = (gobject.timeout_add
1212
(time_to_die, self.disable))
1213
2157
# Reschedule disabling
2158
if self.enabled:
2159
now = datetime.datetime.utcnow()
2160
self.expires += self.timeout - old_timeout
2161
if self.expires <= now:
2162
# The timeout has passed
2163
self.disable()
2164
else:
2165
if (getattr(self, "disable_initiator_tag", None)
2166
is None):
2167
return
2168
GLib.source_remove(self.disable_initiator_tag)
2169
self.disable_initiator_tag = GLib.timeout_add(
2170
int((self.expires - now).total_seconds() * 1000),
2171
self.disable)
2172
1214
2173
# ExtendedTimeout - property
1215
@dbus_service_property(_interface, signature="t",
2174
@dbus_service_property(_interface,
2175
signature="t",
1216
2176
access="readwrite")
1217
2177
def ExtendedTimeout_dbus_property(self, value=None):
1218
2178
if value is None: # get
1219
return dbus.UInt64(self.extended_timeout_milliseconds())
2179
return dbus.UInt64(self.extended_timeout.total_seconds()
2180
* 1000)
1220
2181
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1221
2182
1222
2183
# Interval - property
1223
@dbus_service_property(_interface, signature="t",
2184
@dbus_service_property(_interface,
2185
signature="t",
1224
2186
access="readwrite")
1225
2187
def Interval_dbus_property(self, value=None):
1226
2188
if value is None: # get
1227
return dbus.UInt64(self.interval_milliseconds())
2189
return dbus.UInt64(self.interval.total_seconds() * 1000)
1228
2190
self.interval = datetime.timedelta(0, 0, 0, value)
1229
2191
if getattr(self, "checker_initiator_tag", None) is None:
1230
2192
return
1231
# Reschedule checker run
1232
gobject.source_remove(self.checker_initiator_tag)
1233
self.checker_initiator_tag = (gobject.timeout_add
1234
(value, self.start_checker))
1235
self.start_checker() # Start one now, too
1236
2193
if self.enabled:
2194
# Reschedule checker run
2195
GLib.source_remove(self.checker_initiator_tag)
2196
self.checker_initiator_tag = GLib.timeout_add(
2197
value, self.start_checker)
2198
self.start_checker() # Start one now, too
2199
1237
2200
# Checker - property
1238
@dbus_service_property(_interface, signature="s",
2201
@dbus_service_property(_interface,
2202
signature="s",
1239
2203
access="readwrite")
1240
2204
def Checker_dbus_property(self, value=None):
1241
2205
if value is None: # get
1242
2206
return dbus.String(self.checker_command)
1243
self.checker_command = value
1244
2207
self.checker_command = str(value)
2208
1245
2209
# CheckerRunning - property
1246
@dbus_service_property(_interface, signature="b",
2210
@dbus_service_property(_interface,
2211
signature="b",
1247
2212
access="readwrite")
1248
2213
def CheckerRunning_dbus_property(self, value=None):
1249
2214
if value is None: # get
1252
2217
self.start_checker()
1253
2218
else:
1254
2219
self.stop_checker()
1255
2220
1256
2221
# ObjectPath - property
2222
@dbus_annotations(
2223
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2224
"org.freedesktop.DBus.Deprecated": "true"})
1257
2225
@dbus_service_property(_interface, signature="o", access="read")
1258
2226
def ObjectPath_dbus_property(self):
1259
return self.dbus_object_path # is already a dbus.ObjectPath
1260
2227
return self.dbus_object_path # is already a dbus.ObjectPath
2228
1261
2229
# Secret = property
1262
@dbus_service_property(_interface, signature="ay",
1263
access="write", byte_arrays=True)
2230
@dbus_annotations(
2231
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2232
"invalidates"})
2233
@dbus_service_property(_interface,
2234
signature="ay",
2235
access="write",
2236
byte_arrays=True)
1264
2237
def Secret_dbus_property(self, value):
1265
self.secret = str(value)
1266
2238
self.secret = bytes(value)
2239
1267
2240
del _interface
1268
2241
1269
2242
1270
class ProxyClient(object):
1271
def __init__(self, child_pipe, fpr, address):
2243
class ProxyClient:
2244
def __init__(self, child_pipe, key_id, fpr, address):
1272
2245
self._pipe = child_pipe
1273
self._pipe.send(('init', fpr, address))
2246
self._pipe.send(('init', key_id, fpr, address))
1274
2247
if not self._pipe.recv():
1275
raise KeyError()
1276
2248
raise KeyError(key_id or fpr)
2249
1277
2250
def __getattribute__(self, name):
1278
if(name == '_pipe'):
2251
if name == '_pipe':
1279
2252
return super(ProxyClient, self).__getattribute__(name)
1280
2253
self._pipe.send(('getattr', name))
1281
2254
data = self._pipe.recv()
1282
2255
if data[0] == 'data':
1283
2256
return data[1]
1284
2257
if data[0] == 'function':
2258
1285
2259
def func(*args, **kwargs):
1286
2260
self._pipe.send(('funcall', name, args, kwargs))
1287
2261
return self._pipe.recv()[1]
2262
1288
2263
return func
1289
2264
1290
2265
def __setattr__(self, name, value):
1291
if(name == '_pipe'):
2266
if name == '_pipe':
1292
2267
return super(ProxyClient, self).__setattr__(name, value)
1293
2268
self._pipe.send(('setattr', name, value))
1294
2269
1295
class ClientDBusTransitional(ClientDBus):
1296
__metaclass__ = AlternateDBusNamesMetaclass
1297
2270
1298
2271
class ClientHandler(socketserver.BaseRequestHandler, object):
1299
2272
"""A class to handle client connections.
1300
2273
1301
2274
Instantiated once for each connection to handle it.
1302
2275
Note: This will run in its own forked process."""
1303
2276
1304
2277
def handle(self):
1305
2278
with contextlib.closing(self.server.child_pipe) as child_pipe:
1306
2279
logger.info("TCP connection from: %s",
1307
unicode(self.client_address))
2280
str(self.client_address))
1308
2281
logger.debug("Pipe FD: %d",
1309
2282
self.server.child_pipe.fileno())
1310
1311
session = (gnutls.connection
1312
.ClientSession(self.request,
1313
gnutls.connection
1314
.X509Credentials()))
1315
1316
# Note: gnutls.connection.X509Credentials is really a
1317
# generic GnuTLS certificate credentials object so long as
1318
# no X.509 keys are added to it. Therefore, we can use it
1319
# here despite using OpenPGP certificates.
1320
1321
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1322
# "+AES-256-CBC", "+SHA1",
1323
# "+COMP-NULL", "+CTYPE-OPENPGP",
1324
# "+DHE-DSS"))
2283
2284
session = gnutls.ClientSession(self.request)
2285
2286
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2287
# "+AES-256-CBC", "+SHA1",
2288
# "+COMP-NULL", "+CTYPE-OPENPGP",
2289
# "+DHE-DSS"))
1325
2290
# Use a fallback default, since this MUST be set.
1326
2291
priority = self.server.gnutls_priority
1327
2292
if priority is None:
1328
2293
priority = "NORMAL"
1329
(gnutls.library.functions
1330
.gnutls_priority_set_direct(session._c_object,
1331
priority, None))
1332
2294
gnutls.priority_set_direct(session._c_object,
2295
priority.encode("utf-8"),
2296
None)
2297
1333
2298
# Start communication using the Mandos protocol
1334
2299
# Get protocol number
1335
2300
line = self.request.makefile().readline()
1336
2301
logger.debug("Protocol version: %r", line)
1337
2302
try:
1338
2303
if int(line.strip().split()[0]) > 1:
1339
raise RuntimeError
2304
raise RuntimeError(line)
1340
2305
except (ValueError, IndexError, RuntimeError) as error:
1341
2306
logger.error("Unknown protocol version: %s", error)
1342
2307
return
1343
2308
1344
2309
# Start GnuTLS connection
1345
2310
try:
1346
2311
session.handshake()
1347
except gnutls.errors.GNUTLSError as error:
2312
except gnutls.Error as error:
1348
2313
logger.warning("Handshake failed: %s", error)
1349
2314
# Do not run session.bye() here: the session is not
1350
2315
# established. Just abandon the request.
1351
2316
return
1352
2317
logger.debug("Handshake succeeded")
1353
2318
1354
2319
approval_required = False
1355
2320
try:
1356
try:
1357
fpr = self.fingerprint(self.peer_certificate
1358
(session))
1359
except (TypeError,
1360
gnutls.errors.GNUTLSError) as error:
1361
logger.warning("Bad certificate: %s", error)
1362
return
1363
logger.debug("Fingerprint: %s", fpr)
1364
1365
try:
1366
client = ProxyClient(child_pipe, fpr,
2321
if gnutls.has_rawpk:
2322
fpr = b""
2323
try:
2324
key_id = self.key_id(
2325
self.peer_certificate(session))
2326
except (TypeError, gnutls.Error) as error:
2327
logger.warning("Bad certificate: %s", error)
2328
return
2329
logger.debug("Key ID: %s", key_id)
2330
2331
else:
2332
key_id = b""
2333
try:
2334
fpr = self.fingerprint(
2335
self.peer_certificate(session))
2336
except (TypeError, gnutls.Error) as error:
2337
logger.warning("Bad certificate: %s", error)
2338
return
2339
logger.debug("Fingerprint: %s", fpr)
2340
2341
try:
2342
client = ProxyClient(child_pipe, key_id, fpr,
1367
2343
self.client_address)
1368
2344
except KeyError:
1369
2345
return
1370
2346
1371
2347
if client.approval_delay:
1372
2348
delay = client.approval_delay
1373
2349
client.approvals_pending += 1
1374
2350
approval_required = True
1375
2351
1376
2352
while True:
1377
2353
if not client.enabled:
1378
2354
logger.info("Client %s is disabled",
1379
client.name)
2355
client.name)
1380
2356
if self.server.use_dbus:
1381
2357
# Emit D-Bus signal
1382
2358
client.Rejected("Disabled")
1383
2359
return
1384
1385
if client._approved or not client.approval_delay:
1386
#We are approved or approval is disabled
2360
2361
if client.approved or not client.approval_delay:
2362
# We are approved or approval is disabled
1387
2363
break
1388
elif client._approved is None:
2364
elif client.approved is None:
1389
2365
logger.info("Client %s needs approval",
1390
2366
client.name)
1391
2367
if self.server.use_dbus:
1392
2368
# Emit D-Bus signal
1393
2369
client.NeedApproval(
1394
client.approval_delay_milliseconds(),
1395
client.approved_by_default)
2370
client.approval_delay.total_seconds()
2371
* 1000, client.approved_by_default)
1396
2372
else:
1397
2373
logger.warning("Client %s was not approved",
1398
2374
client.name)
1400
2376
# Emit D-Bus signal
1401
2377
client.Rejected("Denied")
1402
2378
return
1403
1404
#wait until timeout or approved
2379
2380
# wait until timeout or approved
1405
2381
time = datetime.datetime.now()
1406
2382
client.changedstate.acquire()
1407
(client.changedstate.wait
1408
(float(client._timedelta_to_milliseconds(delay)
1409
/ 1000)))
2383
client.changedstate.wait(delay.total_seconds())
1410
2384
client.changedstate.release()
1411
2385
time2 = datetime.datetime.now()
1412
2386
if (time2 - time) >= delay:
1422
2396
break
1423
2397
else:
1424
2398
delay -= time2 - time
1425
1426
sent_size = 0
1427
while sent_size < len(client.secret):
1428
try:
1429
sent = session.send(client.secret[sent_size:])
1430
except gnutls.errors.GNUTLSError as error:
1431
logger.warning("gnutls send failed")
1432
return
1433
logger.debug("Sent: %d, remaining: %d",
1434
sent, len(client.secret)
1435
- (sent_size + sent))
1436
sent_size += sent
1437
2399
2400
try:
2401
session.send(client.secret)
2402
except gnutls.Error as error:
2403
logger.warning("gnutls send failed",
2404
exc_info=error)
2405
return
2406
1438
2407
logger.info("Sending secret to %s", client.name)
1439
2408
# bump the timeout using extended_timeout
1440
client.checked_ok(client.extended_timeout)
2409
client.bump_timeout(client.extended_timeout)
1441
2410
if self.server.use_dbus:
1442
2411
# Emit D-Bus signal
1443
2412
client.GotSecret()
1444
2413
1445
2414
finally:
1446
2415
if approval_required:
1447
2416
client.approvals_pending -= 1
1448
2417
try:
1449
2418
session.bye()
1450
except gnutls.errors.GNUTLSError as error:
1451
logger.warning("GnuTLS bye failed")
1452
2419
except gnutls.Error as error:
2420
logger.warning("GnuTLS bye failed",
2421
exc_info=error)
2422
1453
2423
@staticmethod
1454
2424
def peer_certificate(session):
1455
"Return the peer's OpenPGP certificate as a bytestring"
1456
# If not an OpenPGP certificate...
1457
if (gnutls.library.functions
1458
.gnutls_certificate_type_get(session._c_object)
1459
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1460
# ...do the normal thing
1461
return session.peer_certificate
2425
"Return the peer's certificate as a bytestring"
2426
try:
2427
cert_type = gnutls.certificate_type_get2(session._c_object,
2428
gnutls.CTYPE_PEERS)
2429
except AttributeError:
2430
cert_type = gnutls.certificate_type_get(session._c_object)
2431
if gnutls.has_rawpk:
2432
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2433
else:
2434
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2435
# If not a valid certificate type...
2436
if cert_type not in valid_cert_types:
2437
logger.info("Cert type %r not in %r", cert_type,
2438
valid_cert_types)
2439
# ...return invalid data
2440
return b""
1462
2441
list_size = ctypes.c_uint(1)
1463
cert_list = (gnutls.library.functions
1464
.gnutls_certificate_get_peers
2442
cert_list = (gnutls.certificate_get_peers
1465
2443
(session._c_object, ctypes.byref(list_size)))
1466
2444
if not bool(cert_list) and list_size.value != 0:
1467
raise gnutls.errors.GNUTLSError("error getting peer"
1468
" certificate")
2445
raise gnutls.Error("error getting peer certificate")
1469
2446
if list_size.value == 0:
1470
2447
return None
1471
2448
cert = cert_list[0]
1472
2449
return ctypes.string_at(cert.data, cert.size)
1473
2450
2451
@staticmethod
2452
def key_id(certificate):
2453
"Convert a certificate bytestring to a hexdigit key ID"
2454
# New GnuTLS "datum" with the public key
2455
datum = gnutls.datum_t(
2456
ctypes.cast(ctypes.c_char_p(certificate),
2457
ctypes.POINTER(ctypes.c_ubyte)),
2458
ctypes.c_uint(len(certificate)))
2459
# XXX all these need to be created in the gnutls "module"
2460
# New empty GnuTLS certificate
2461
pubkey = gnutls.pubkey_t()
2462
gnutls.pubkey_init(ctypes.byref(pubkey))
2463
# Import the raw public key into the certificate
2464
gnutls.pubkey_import(pubkey,
2465
ctypes.byref(datum),
2466
gnutls.X509_FMT_DER)
2467
# New buffer for the key ID
2468
buf = ctypes.create_string_buffer(32)
2469
buf_len = ctypes.c_size_t(len(buf))
2470
# Get the key ID from the raw public key into the buffer
2471
gnutls.pubkey_get_key_id(pubkey,
2472
gnutls.KEYID_USE_SHA256,
2473
ctypes.cast(ctypes.byref(buf),
2474
ctypes.POINTER(ctypes.c_ubyte)),
2475
ctypes.byref(buf_len))
2476
# Deinit the certificate
2477
gnutls.pubkey_deinit(pubkey)
2478
2479
# Convert the buffer to a Python bytestring
2480
key_id = ctypes.string_at(buf, buf_len.value)
2481
# Convert the bytestring to hexadecimal notation
2482
hex_key_id = binascii.hexlify(key_id).upper()
2483
return hex_key_id
2484
1474
2485
@staticmethod
1475
2486
def fingerprint(openpgp):
1476
2487
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1477
2488
# New GnuTLS "datum" with the OpenPGP public key
1478
datum = (gnutls.library.types
1479
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1480
ctypes.POINTER
1481
(ctypes.c_ubyte)),
1482
ctypes.c_uint(len(openpgp))))
2489
datum = gnutls.datum_t(
2490
ctypes.cast(ctypes.c_char_p(openpgp),
2491
ctypes.POINTER(ctypes.c_ubyte)),
2492
ctypes.c_uint(len(openpgp)))
1483
2493
# New empty GnuTLS certificate
1484
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1485
(gnutls.library.functions
1486
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2494
crt = gnutls.openpgp_crt_t()
2495
gnutls.openpgp_crt_init(ctypes.byref(crt))
1487
2496
# Import the OpenPGP public key into the certificate
1488
(gnutls.library.functions
1489
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1490
gnutls.library.constants
1491
.GNUTLS_OPENPGP_FMT_RAW))
2497
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2498
gnutls.OPENPGP_FMT_RAW)
1492
2499
# Verify the self signature in the key
1493
2500
crtverify = ctypes.c_uint()
1494
(gnutls.library.functions
1495
.gnutls_openpgp_crt_verify_self(crt, 0,
1496
ctypes.byref(crtverify)))
2501
gnutls.openpgp_crt_verify_self(crt, 0,
2502
ctypes.byref(crtverify))
1497
2503
if crtverify.value != 0:
1498
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1499
raise (gnutls.errors.CertificateSecurityError
1500
("Verify failed"))
2504
gnutls.openpgp_crt_deinit(crt)
2505
raise gnutls.CertificateSecurityError(code
2506
=crtverify.value)
1501
2507
# New buffer for the fingerprint
1502
2508
buf = ctypes.create_string_buffer(20)
1503
2509
buf_len = ctypes.c_size_t()
1504
2510
# Get the fingerprint from the certificate into the buffer
1505
(gnutls.library.functions
1506
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1507
ctypes.byref(buf_len)))
2511
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2512
ctypes.byref(buf_len))
1508
2513
# Deinit the certificate
1509
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2514
gnutls.openpgp_crt_deinit(crt)
1510
2515
# Convert the buffer to a Python bytestring
1511
2516
fpr = ctypes.string_at(buf, buf_len.value)
1512
2517
# Convert the bytestring to hexadecimal notation
1513
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2518
hex_fpr = binascii.hexlify(fpr).upper()
1514
2519
return hex_fpr
1515
2520
1516
2521
1517
class MultiprocessingMixIn(object):
2522
class MultiprocessingMixIn:
1518
2523
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2524
1519
2525
def sub_process_main(self, request, address):
1520
2526
try:
1521
2527
self.finish_request(request, address)
1522
except:
2528
except Exception:
1523
2529
self.handle_error(request, address)
1524
2530
self.close_request(request)
1525
2531
1526
2532
def process_request(self, request, address):
1527
2533
"""Start a new process to process the request."""
1528
proc = multiprocessing.Process(target = self.sub_process_main,
1529
args = (request,
1530
address))
2534
proc = multiprocessing.Process(target=self.sub_process_main,
2535
args=(request, address))
1531
2536
proc.start()
1532
2537
return proc
1533
2538
1534
2539
1535
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2540
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1536
2541
""" adds a pipe to the MixIn """
2542
1537
2543
def process_request(self, request, client_address):
1538
2544
"""Overrides and wraps the original process_request().
1539
2545
1540
2546
This function creates a new pipe in self.pipe
1541
2547
"""
1542
2548
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1543
2549
1544
2550
proc = MultiprocessingMixIn.process_request(self, request,
1545
2551
client_address)
1546
2552
self.child_pipe.close()
1547
2553
self.add_pipe(parent_pipe, proc)
1548
2554
1549
2555
def add_pipe(self, parent_pipe, proc):
1550
2556
"""Dummy function; override as necessary"""
1551
raise NotImplementedError
2557
raise NotImplementedError()
1552
2558
1553
2559
1554
2560
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1555
socketserver.TCPServer, object):
2561
socketserver.TCPServer):
1556
2562
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1557
2563
1558
2564
Attributes:
1559
2565
enabled: Boolean; whether this server is activated yet
1560
2566
interface: None or a network interface name (string)
1561
2567
use_ipv6: Boolean; to use IPv6 or not
1562
2568
"""
2569
1563
2570
def __init__(self, server_address, RequestHandlerClass,
1564
interface=None, use_ipv6=True):
2571
interface=None,
2572
use_ipv6=True,
2573
socketfd=None):
2574
"""If socketfd is set, use that file descriptor instead of
2575
creating a new one with socket.socket().
2576
"""
1565
2577
self.interface = interface
1566
2578
if use_ipv6:
1567
2579
self.address_family = socket.AF_INET6
2580
if socketfd is not None:
2581
# Save the file descriptor
2582
self.socketfd = socketfd
2583
# Save the original socket.socket() function
2584
self.socket_socket = socket.socket
2585
2586
# To implement --socket, we monkey patch socket.socket.
2587
#
2588
# (When socketserver.TCPServer is a new-style class, we
2589
# could make self.socket into a property instead of monkey
2590
# patching socket.socket.)
2591
#
2592
# Create a one-time-only replacement for socket.socket()
2593
@functools.wraps(socket.socket)
2594
def socket_wrapper(*args, **kwargs):
2595
# Restore original function so subsequent calls are
2596
# not affected.
2597
socket.socket = self.socket_socket
2598
del self.socket_socket
2599
# This time only, return a new socket object from the
2600
# saved file descriptor.
2601
return socket.fromfd(self.socketfd, *args, **kwargs)
2602
# Replace socket.socket() function with wrapper
2603
socket.socket = socket_wrapper
2604
# The socketserver.TCPServer.__init__ will call
2605
# socket.socket(), which might be our replacement,
2606
# socket_wrapper(), if socketfd was set.
1568
2607
socketserver.TCPServer.__init__(self, server_address,
1569
2608
RequestHandlerClass)
2609
1570
2610
def server_bind(self):
1571
2611
"""This overrides the normal server_bind() function
1572
2612
to bind to an interface if one was specified, and also NOT to
1573
2613
bind to an address or port if they were not specified."""
2614
global SO_BINDTODEVICE
1574
2615
if self.interface is not None:
1575
2616
if SO_BINDTODEVICE is None:
1576
logger.error("SO_BINDTODEVICE does not exist;"
1577
" cannot bind to interface %s",
1578
self.interface)
1579
else:
1580
try:
1581
self.socket.setsockopt(socket.SOL_SOCKET,
1582
SO_BINDTODEVICE,
1583
str(self.interface
1584
+ '\0'))
1585
except socket.error as error:
1586
if error[0] == errno.EPERM:
1587
logger.error("No permission to"
1588
" bind to interface %s",
1589
self.interface)
1590
elif error[0] == errno.ENOPROTOOPT:
1591
logger.error("SO_BINDTODEVICE not available;"
1592
" cannot bind to interface %s",
1593
self.interface)
1594
else:
1595
raise
2617
# Fall back to a hard-coded value which seems to be
2618
# common enough.
2619
logger.warning("SO_BINDTODEVICE not found, trying 25")
2620
SO_BINDTODEVICE = 25
2621
try:
2622
self.socket.setsockopt(
2623
socket.SOL_SOCKET, SO_BINDTODEVICE,
2624
(self.interface + "\0").encode("utf-8"))
2625
except socket.error as error:
2626
if error.errno == errno.EPERM:
2627
logger.error("No permission to bind to"
2628
" interface %s", self.interface)
2629
elif error.errno == errno.ENOPROTOOPT:
2630
logger.error("SO_BINDTODEVICE not available;"
2631
" cannot bind to interface %s",
2632
self.interface)
2633
elif error.errno == errno.ENODEV:
2634
logger.error("Interface %s does not exist,"
2635
" cannot bind", self.interface)
2636
else:
2637
raise
1596
2638
# Only bind(2) the socket if we really need to.
1597
2639
if self.server_address[0] or self.server_address[1]:
2640
if self.server_address[1]:
2641
self.allow_reuse_address = True
1598
2642
if not self.server_address[0]:
1599
2643
if self.address_family == socket.AF_INET6:
1600
any_address = "::" # in6addr_any
2644
any_address = "::" # in6addr_any
1601
2645
else:
1602
any_address = socket.INADDR_ANY
2646
any_address = "0.0.0.0" # INADDR_ANY
1603
2647
self.server_address = (any_address,
1604
2648
self.server_address[1])
1605
2649
elif not self.server_address[1]:
1606
self.server_address = (self.server_address[0],
1607
0)
2650
self.server_address = (self.server_address[0], 0)
1608
2651
# if self.interface:
1609
2652
# self.server_address = (self.server_address[0],
1610
2653
# 0, # port
1616
2659
1617
2660
class MandosServer(IPv6_TCPServer):
1618
2661
"""Mandos server.
1619
2662
1620
2663
Attributes:
1621
2664
clients: set of Client objects
1622
2665
gnutls_priority GnuTLS priority string
1623
2666
use_dbus: Boolean; to emit D-Bus signals or not
1624
1625
Assumes a gobject.MainLoop event loop.
2667
2668
Assumes a GLib.MainLoop event loop.
1626
2669
"""
2670
1627
2671
def __init__(self, server_address, RequestHandlerClass,
1628
interface=None, use_ipv6=True, clients=None,
1629
gnutls_priority=None, use_dbus=True):
2672
interface=None,
2673
use_ipv6=True,
2674
clients=None,
2675
gnutls_priority=None,
2676
use_dbus=True,
2677
socketfd=None):
1630
2678
self.enabled = False
1631
2679
self.clients = clients
1632
2680
if self.clients is None:
1633
self.clients = set()
2681
self.clients = {}
1634
2682
self.use_dbus = use_dbus
1635
2683
self.gnutls_priority = gnutls_priority
1636
2684
IPv6_TCPServer.__init__(self, server_address,
1637
2685
RequestHandlerClass,
1638
interface = interface,
1639
use_ipv6 = use_ipv6)
2686
interface=interface,
2687
use_ipv6=use_ipv6,
2688
socketfd=socketfd)
2689
1640
2690
def server_activate(self):
1641
2691
if self.enabled:
1642
2692
return socketserver.TCPServer.server_activate(self)
1643
2693
1644
2694
def enable(self):
1645
2695
self.enabled = True
1646
2696
1647
2697
def add_pipe(self, parent_pipe, proc):
1648
2698
# Call "handle_ipc" for both data and EOF events
1649
gobject.io_add_watch(parent_pipe.fileno(),
1650
gobject.IO_IN | gobject.IO_HUP,
1651
functools.partial(self.handle_ipc,
1652
parent_pipe =
1653
parent_pipe,
1654
proc = proc))
1655
1656
def handle_ipc(self, source, condition, parent_pipe=None,
1657
proc = None, client_object=None):
1658
condition_names = {
1659
gobject.IO_IN: "IN", # There is data to read.
1660
gobject.IO_OUT: "OUT", # Data can be written (without
1661
# blocking).
1662
gobject.IO_PRI: "PRI", # There is urgent data to read.
1663
gobject.IO_ERR: "ERR", # Error condition.
1664
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1665
# broken, usually for pipes and
1666
# sockets).
1667
}
1668
conditions_string = ' | '.join(name
1669
for cond, name in
1670
condition_names.iteritems()
1671
if cond & condition)
2699
GLib.io_add_watch(
2700
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2701
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2702
functools.partial(self.handle_ipc,
2703
parent_pipe=parent_pipe,
2704
proc=proc))
2705
2706
def handle_ipc(self, source, condition,
2707
parent_pipe=None,
2708
proc=None,
2709
client_object=None):
1672
2710
# error, or the other end of multiprocessing.Pipe has closed
1673
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2711
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1674
2712
# Wait for other process to exit
1675
2713
proc.join()
1676
2714
return False
1677
2715
1678
2716
# Read a request from the child
1679
2717
request = parent_pipe.recv()
1680
2718
command = request[0]
1681
2719
1682
2720
if command == 'init':
1683
fpr = request[1]
1684
address = request[2]
1685
1686
for c in self.clients:
1687
if c.fingerprint == fpr:
2721
key_id = request[1].decode("ascii")
2722
fpr = request[2].decode("ascii")
2723
address = request[3]
2724
2725
for c in self.clients.values():
2726
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2727
continue
2728
if key_id and c.key_id == key_id:
2729
client = c
2730
break
2731
if fpr and c.fingerprint == fpr:
1688
2732
client = c
1689
2733
break
1690
2734
else:
1691
logger.info("Client not found for fingerprint: %s, ad"
1692
"dress: %s", fpr, address)
2735
logger.info("Client not found for key ID: %s, address"
2736
": %s", key_id or fpr, address)
1693
2737
if self.use_dbus:
1694
2738
# Emit D-Bus signal
1695
mandos_dbus_service.ClientNotFound(fpr,
2739
mandos_dbus_service.ClientNotFound(key_id or fpr,
1696
2740
address[0])
1697
2741
parent_pipe.send(False)
1698
2742
return False
1699
1700
gobject.io_add_watch(parent_pipe.fileno(),
1701
gobject.IO_IN | gobject.IO_HUP,
1702
functools.partial(self.handle_ipc,
1703
parent_pipe =
1704
parent_pipe,
1705
proc = proc,
1706
client_object =
1707
client))
2743
2744
GLib.io_add_watch(
2745
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2746
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2747
functools.partial(self.handle_ipc,
2748
parent_pipe=parent_pipe,
2749
proc=proc,
2750
client_object=client))
1708
2751
parent_pipe.send(True)
1709
2752
# remove the old hook in favor of the new above hook on
1710
2753
# same fileno
1713
2756
funcname = request[1]
1714
2757
args = request[2]
1715
2758
kwargs = request[3]
1716
2759
1717
2760
parent_pipe.send(('data', getattr(client_object,
1718
2761
funcname)(*args,
1719
**kwargs)))
1720
2762
**kwargs)))
2763
1721
2764
if command == 'getattr':
1722
2765
attrname = request[1]
1723
if callable(client_object.__getattribute__(attrname)):
1724
parent_pipe.send(('function',))
2766
if isinstance(client_object.__getattribute__(attrname),
2767
collections.abc.Callable):
2768
parent_pipe.send(('function', ))
1725
2769
else:
1726
parent_pipe.send(('data', client_object
1727
.__getattribute__(attrname)))
1728
2770
parent_pipe.send((
2771
'data', client_object.__getattribute__(attrname)))
2772
1729
2773
if command == 'setattr':
1730
2774
attrname = request[1]
1731
2775
value = request[2]
1732
2776
setattr(client_object, attrname, value)
1733
2777
1734
2778
return True
1735
2779
1736
2780
2781
def rfc3339_duration_to_delta(duration):
2782
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2783
2784
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2785
True
2786
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2787
True
2788
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2789
True
2790
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2791
True
2792
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2793
True
2794
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2795
True
2796
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2797
True
2798
"""
2799
2800
# Parsing an RFC 3339 duration with regular expressions is not
2801
# possible - there would have to be multiple places for the same
2802
# values, like seconds. The current code, while more esoteric, is
2803
# cleaner without depending on a parsing library. If Python had a
2804
# built-in library for parsing we would use it, but we'd like to
2805
# avoid excessive use of external libraries.
2806
2807
# New type for defining tokens, syntax, and semantics all-in-one
2808
Token = collections.namedtuple("Token", (
2809
"regexp", # To match token; if "value" is not None, must have
2810
# a "group" containing digits
2811
"value", # datetime.timedelta or None
2812
"followers")) # Tokens valid after this token
2813
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2814
# the "duration" ABNF definition in RFC 3339, Appendix A.
2815
token_end = Token(re.compile(r"$"), None, frozenset())
2816
token_second = Token(re.compile(r"(\d+)S"),
2817
datetime.timedelta(seconds=1),
2818
frozenset((token_end, )))
2819
token_minute = Token(re.compile(r"(\d+)M"),
2820
datetime.timedelta(minutes=1),
2821
frozenset((token_second, token_end)))
2822
token_hour = Token(re.compile(r"(\d+)H"),
2823
datetime.timedelta(hours=1),
2824
frozenset((token_minute, token_end)))
2825
token_time = Token(re.compile(r"T"),
2826
None,
2827
frozenset((token_hour, token_minute,
2828
token_second)))
2829
token_day = Token(re.compile(r"(\d+)D"),
2830
datetime.timedelta(days=1),
2831
frozenset((token_time, token_end)))
2832
token_month = Token(re.compile(r"(\d+)M"),
2833
datetime.timedelta(weeks=4),
2834
frozenset((token_day, token_end)))
2835
token_year = Token(re.compile(r"(\d+)Y"),
2836
datetime.timedelta(weeks=52),
2837
frozenset((token_month, token_end)))
2838
token_week = Token(re.compile(r"(\d+)W"),
2839
datetime.timedelta(weeks=1),
2840
frozenset((token_end, )))
2841
token_duration = Token(re.compile(r"P"), None,
2842
frozenset((token_year, token_month,
2843
token_day, token_time,
2844
token_week)))
2845
# Define starting values:
2846
# Value so far
2847
value = datetime.timedelta()
2848
found_token = None
2849
# Following valid tokens
2850
followers = frozenset((token_duration, ))
2851
# String left to parse
2852
s = duration
2853
# Loop until end token is found
2854
while found_token is not token_end:
2855
# Search for any currently valid tokens
2856
for token in followers:
2857
match = token.regexp.match(s)
2858
if match is not None:
2859
# Token found
2860
if token.value is not None:
2861
# Value found, parse digits
2862
factor = int(match.group(1), 10)
2863
# Add to value so far
2864
value += factor * token.value
2865
# Strip token from string
2866
s = token.regexp.sub("", s, 1)
2867
# Go to found token
2868
found_token = token
2869
# Set valid next tokens
2870
followers = found_token.followers
2871
break
2872
else:
2873
# No currently valid tokens were found
2874
raise ValueError("Invalid RFC 3339 duration: {!r}"
2875
.format(duration))
2876
# End token found
2877
return value
2878
2879
1737
2880
def string_to_delta(interval):
1738
2881
"""Parse a string and return a datetime.timedelta
1739
1740
>>> string_to_delta('7d')
1741
datetime.timedelta(7)
1742
>>> string_to_delta('60s')
1743
datetime.timedelta(0, 60)
1744
>>> string_to_delta('60m')
1745
datetime.timedelta(0, 3600)
1746
>>> string_to_delta('24h')
1747
datetime.timedelta(1)
1748
>>> string_to_delta('1w')
1749
datetime.timedelta(7)
1750
>>> string_to_delta('5m 30s')
1751
datetime.timedelta(0, 330)
2882
2883
>>> string_to_delta('7d') == datetime.timedelta(7)
2884
True
2885
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2886
True
2887
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2888
True
2889
>>> string_to_delta('24h') == datetime.timedelta(1)
2890
True
2891
>>> string_to_delta('1w') == datetime.timedelta(7)
2892
True
2893
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2894
True
1752
2895
"""
2896
2897
try:
2898
return rfc3339_duration_to_delta(interval)
2899
except ValueError:
2900
pass
2901
1753
2902
timevalue = datetime.timedelta(0)
1754
2903
for s in interval.split():
1755
2904
try:
1756
suffix = unicode(s[-1])
2905
suffix = s[-1]
1757
2906
value = int(s[:-1])
1758
2907
if suffix == "d":
1759
2908
delta = datetime.timedelta(value)
1766
2915
elif suffix == "w":
1767
2916
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1768
2917
else:
1769
raise ValueError("Unknown suffix %r" % suffix)
1770
except (ValueError, IndexError) as e:
2918
raise ValueError("Unknown suffix {!r}".format(suffix))
2919
except IndexError as e:
1771
2920
raise ValueError(*(e.args))
1772
2921
timevalue += delta
1773
2922
return timevalue
1774
2923
1775
2924
1776
def if_nametoindex(interface):
1777
"""Call the C function if_nametoindex(), or equivalent
1778
1779
Note: This function cannot accept a unicode string."""
1780
global if_nametoindex
1781
try:
1782
if_nametoindex = (ctypes.cdll.LoadLibrary
1783
(ctypes.util.find_library("c"))
1784
.if_nametoindex)
1785
except (OSError, AttributeError):
1786
logger.warning("Doing if_nametoindex the hard way")
1787
def if_nametoindex(interface):
1788
"Get an interface index the hard way, i.e. using fcntl()"
1789
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1790
with contextlib.closing(socket.socket()) as s:
1791
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1792
struct.pack(str("16s16x"),
1793
interface))
1794
interface_index = struct.unpack(str("I"),
1795
ifreq[16:20])[0]
1796
return interface_index
1797
return if_nametoindex(interface)
1798
1799
1800
def daemon(nochdir = False, noclose = False):
2925
def daemon(nochdir=False, noclose=False):
1801
2926
"""See daemon(3). Standard BSD Unix function.
1802
2927
1803
2928
This should really exist as os.daemon, but it doesn't (yet)."""
1804
2929
if os.fork():
1805
2930
sys.exit()
1810
2935
sys.exit()
1811
2936
if not noclose:
1812
2937
# Close all standard open file descriptors
1813
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2938
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1814
2939
if not stat.S_ISCHR(os.fstat(null).st_mode):
1815
2940
raise OSError(errno.ENODEV,
1816
"%s not a character device"
1817
% os.path.devnull)
2941
"{} not a character device"
2942
.format(os.devnull))
1818
2943
os.dup2(null, sys.stdin.fileno())
1819
2944
os.dup2(null, sys.stdout.fileno())
1820
2945
os.dup2(null, sys.stderr.fileno())
1823
2948
1824
2949
1825
2950
def main():
1826
2951
1827
2952
##################################################################
1828
2953
# Parsing of options, both command line and config file
1829
2954
1830
2955
parser = argparse.ArgumentParser()
1831
2956
parser.add_argument("-v", "--version", action="version",
1832
version = "%%(prog)s %s" % version,
2957
version="%(prog)s {}".format(version),
1833
2958
help="show version number and exit")
1834
2959
parser.add_argument("-i", "--interface", metavar="IF",
1835
2960
help="Bind to interface IF")
1841
2966
help="Run self-test")
1842
2967
parser.add_argument("--debug", action="store_true",
1843
2968
help="Debug mode; run in foreground and log"
1844
" to terminal")
2969
" to terminal", default=None)
1845
2970
parser.add_argument("--debuglevel", metavar="LEVEL",
1846
2971
help="Debug level for stdout output")
1847
2972
parser.add_argument("--priority", help="GnuTLS"
1854
2979
" files")
1855
2980
parser.add_argument("--no-dbus", action="store_false",
1856
2981
dest="use_dbus", help="Do not provide D-Bus"
1857
" system bus interface")
2982
" system bus interface", default=None)
1858
2983
parser.add_argument("--no-ipv6", action="store_false",
1859
dest="use_ipv6", help="Do not use IPv6")
2984
dest="use_ipv6", help="Do not use IPv6",
2985
default=None)
2986
parser.add_argument("--no-restore", action="store_false",
2987
dest="restore", help="Do not restore stored"
2988
" state", default=None)
2989
parser.add_argument("--socket", type=int,
2990
help="Specify a file descriptor to a network"
2991
" socket to use instead of creating one")
2992
parser.add_argument("--statedir", metavar="DIR",
2993
help="Directory to save/restore state in")
2994
parser.add_argument("--foreground", action="store_true",
2995
help="Run in foreground", default=None)
2996
parser.add_argument("--no-zeroconf", action="store_false",
2997
dest="zeroconf", help="Do not use Zeroconf",
2998
default=None)
2999
1860
3000
options = parser.parse_args()
1861
1862
if options.check:
1863
import doctest
1864
doctest.testmod()
1865
sys.exit()
1866
3001
1867
3002
# Default values for config file for server-global settings
1868
server_defaults = { "interface": "",
1869
"address": "",
1870
"port": "",
1871
"debug": "False",
1872
"priority":
1873
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1874
"servicename": "Mandos",
1875
"use_dbus": "True",
1876
"use_ipv6": "True",
1877
"debuglevel": "",
1878
}
1879
3003
if gnutls.has_rawpk:
3004
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3005
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3006
else:
3007
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3008
":+SIGN-DSA-SHA256")
3009
server_defaults = {"interface": "",
3010
"address": "",
3011
"port": "",
3012
"debug": "False",
3013
"priority": priority,
3014
"servicename": "Mandos",
3015
"use_dbus": "True",
3016
"use_ipv6": "True",
3017
"debuglevel": "",
3018
"restore": "True",
3019
"socket": "",
3020
"statedir": "/var/lib/mandos",
3021
"foreground": "False",
3022
"zeroconf": "True",
3023
}
3024
del priority
3025
1880
3026
# Parse config file for server-global settings
1881
server_config = configparser.SafeConfigParser(server_defaults)
3027
server_config = configparser.ConfigParser(server_defaults)
1882
3028
del server_defaults
1883
server_config.read(os.path.join(options.configdir,
1884
"mandos.conf"))
1885
# Convert the SafeConfigParser object to a dict
3029
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3030
# Convert the ConfigParser object to a dict
1886
3031
server_settings = server_config.defaults()
1887
3032
# Use the appropriate methods on the non-string config options
1888
for option in ("debug", "use_dbus", "use_ipv6"):
3033
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3034
"foreground", "zeroconf"):
1889
3035
server_settings[option] = server_config.getboolean("DEFAULT",
1890
3036
option)
1891
3037
if server_settings["port"]:
1892
3038
server_settings["port"] = server_config.getint("DEFAULT",
1893
3039
"port")
3040
if server_settings["socket"]:
3041
server_settings["socket"] = server_config.getint("DEFAULT",
3042
"socket")
3043
# Later, stdin will, and stdout and stderr might, be dup'ed
3044
# over with an opened os.devnull. But we don't want this to
3045
# happen with a supplied network socket.
3046
if 0 <= server_settings["socket"] <= 2:
3047
server_settings["socket"] = os.dup(server_settings
3048
["socket"])
1894
3049
del server_config
1895
3050
1896
3051
# Override the settings from the config file with command line
1897
3052
# options, if set.
1898
3053
for option in ("interface", "address", "port", "debug",
1899
"priority", "servicename", "configdir",
1900
"use_dbus", "use_ipv6", "debuglevel"):
3054
"priority", "servicename", "configdir", "use_dbus",
3055
"use_ipv6", "debuglevel", "restore", "statedir",
3056
"socket", "foreground", "zeroconf"):
1901
3057
value = getattr(options, option)
1902
3058
if value is not None:
1903
3059
server_settings[option] = value
1904
3060
del options
1905
3061
# Force all strings to be unicode
1906
3062
for option in server_settings.keys():
1907
if type(server_settings[option]) is str:
1908
server_settings[option] = unicode(server_settings[option])
3063
if isinstance(server_settings[option], bytes):
3064
server_settings[option] = (server_settings[option]
3065
.decode("utf-8"))
3066
# Force all boolean options to be boolean
3067
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3068
"foreground", "zeroconf"):
3069
server_settings[option] = bool(server_settings[option])
3070
# Debug implies foreground
3071
if server_settings["debug"]:
3072
server_settings["foreground"] = True
1909
3073
# Now we have our good server settings in "server_settings"
1910
3074
1911
3075
##################################################################
1912
3076
3077
if (not server_settings["zeroconf"]
3078
and not (server_settings["port"]
3079
or server_settings["socket"] != "")):
3080
parser.error("Needs port or socket to work without Zeroconf")
3081
1913
3082
# For convenience
1914
3083
debug = server_settings["debug"]
1915
3084
debuglevel = server_settings["debuglevel"]
1916
3085
use_dbus = server_settings["use_dbus"]
1917
3086
use_ipv6 = server_settings["use_ipv6"]
1918
3087
stored_state_path = os.path.join(server_settings["statedir"],
3088
stored_state_file)
3089
foreground = server_settings["foreground"]
3090
zeroconf = server_settings["zeroconf"]
3091
3092
if debug:
3093
initlogger(debug, logging.DEBUG)
3094
else:
3095
if not debuglevel:
3096
initlogger(debug)
3097
else:
3098
level = getattr(logging, debuglevel.upper())
3099
initlogger(debug, level)
3100
1919
3101
if server_settings["servicename"] != "Mandos":
1920
syslogger.setFormatter(logging.Formatter
1921
('Mandos (%s) [%%(process)d]:'
1922
' %%(levelname)s: %%(message)s'
1923
% server_settings["servicename"]))
1924
3102
syslogger.setFormatter(
3103
logging.Formatter('Mandos ({}) [%(process)d]:'
3104
' %(levelname)s: %(message)s'.format(
3105
server_settings["servicename"])))
3106
1925
3107
# Parse config file with clients
1926
client_defaults = { "timeout": "5m",
1927
"extended_timeout": "15m",
1928
"interval": "2m",
1929
"checker": "fping -q -- %%(host)s",
1930
"host": "",
1931
"approval_delay": "0s",
1932
"approval_duration": "1s",
1933
}
1934
client_config = configparser.SafeConfigParser(client_defaults)
3108
client_config = configparser.ConfigParser(Client.client_defaults)
1935
3109
client_config.read(os.path.join(server_settings["configdir"],
1936
3110
"clients.conf"))
1937
3111
1938
3112
global mandos_dbus_service
1939
3113
mandos_dbus_service = None
1940
1941
tcp_server = MandosServer((server_settings["address"],
1942
server_settings["port"]),
1943
ClientHandler,
1944
interface=(server_settings["interface"]
1945
or None),
1946
use_ipv6=use_ipv6,
1947
gnutls_priority=
1948
server_settings["priority"],
1949
use_dbus=use_dbus)
1950
if not debug:
1951
pidfilename = "/var/run/mandos.pid"
1952
try:
1953
pidfile = open(pidfilename, "w")
1954
except IOError:
1955
logger.error("Could not open file %r", pidfilename)
1956
1957
try:
1958
uid = pwd.getpwnam("_mandos").pw_uid
1959
gid = pwd.getpwnam("_mandos").pw_gid
1960
except KeyError:
1961
try:
1962
uid = pwd.getpwnam("mandos").pw_uid
1963
gid = pwd.getpwnam("mandos").pw_gid
3114
3115
socketfd = None
3116
if server_settings["socket"] != "":
3117
socketfd = server_settings["socket"]
3118
tcp_server = MandosServer(
3119
(server_settings["address"], server_settings["port"]),
3120
ClientHandler,
3121
interface=(server_settings["interface"] or None),
3122
use_ipv6=use_ipv6,
3123
gnutls_priority=server_settings["priority"],
3124
use_dbus=use_dbus,
3125
socketfd=socketfd)
3126
if not foreground:
3127
pidfilename = "/run/mandos.pid"
3128
if not os.path.isdir("/run/."):
3129
pidfilename = "/var/run/mandos.pid"
3130
pidfile = None
3131
try:
3132
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3133
except IOError as e:
3134
logger.error("Could not open file %r", pidfilename,
3135
exc_info=e)
3136
3137
for name, group in (("_mandos", "_mandos"),
3138
("mandos", "mandos"),
3139
("nobody", "nogroup")):
3140
try:
3141
uid = pwd.getpwnam(name).pw_uid
3142
gid = pwd.getpwnam(group).pw_gid
3143
break
1964
3144
except KeyError:
1965
try:
1966
uid = pwd.getpwnam("nobody").pw_uid
1967
gid = pwd.getpwnam("nobody").pw_gid
1968
except KeyError:
1969
uid = 65534
1970
gid = 65534
3145
continue
3146
else:
3147
uid = 65534
3148
gid = 65534
1971
3149
try:
1972
3150
os.setgid(gid)
1973
3151
os.setuid(uid)
3152
if debug:
3153
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3154
gid))
1974
3155
except OSError as error:
1975
if error[0] != errno.EPERM:
1976
raise error
1977
1978
if not debug and not debuglevel:
1979
logger.setLevel(logging.WARNING)
1980
if debuglevel:
1981
level = getattr(logging, debuglevel.upper())
1982
logger.setLevel(level)
1983
3156
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3157
.format(uid, gid, os.strerror(error.errno)))
3158
if error.errno != errno.EPERM:
3159
raise
3160
1984
3161
if debug:
1985
logger.setLevel(logging.DEBUG)
1986
3162
# Enable all possible GnuTLS debugging
1987
3163
1988
3164
# "Use a log level over 10 to enable all debugging options."
1989
3165
# - GnuTLS manual
1990
gnutls.library.functions.gnutls_global_set_log_level(11)
1991
1992
@gnutls.library.types.gnutls_log_func
3166
gnutls.global_set_log_level(11)
3167
3168
@gnutls.log_func
1993
3169
def debug_gnutls(level, string):
1994
3170
logger.debug("GnuTLS: %s", string[:-1])
1995
1996
(gnutls.library.functions
1997
.gnutls_global_set_log_function(debug_gnutls))
1998
3171
3172
gnutls.global_set_log_function(debug_gnutls)
3173
1999
3174
# Redirect stdin so all checkers get /dev/null
2000
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3175
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2001
3176
os.dup2(null, sys.stdin.fileno())
2002
3177
if null > 2:
2003
3178
os.close(null)
2004
else:
2005
# No console logging
2006
logger.removeHandler(console)
2007
3179
2008
3180
# Need to fork before connecting to D-Bus
2009
if not debug:
3181
if not foreground:
2010
3182
# Close all input and output, do double fork, etc.
2011
3183
daemon()
2012
3184
3185
if gi.version_info < (3, 10, 2):
3186
# multiprocessing will use threads, so before we use GLib we
3187
# need to inform GLib that threads will be used.
3188
GLib.threads_init()
3189
2013
3190
global main_loop
2014
3191
# From the Avahi example code
2015
DBusGMainLoop(set_as_default=True )
2016
main_loop = gobject.MainLoop()
3192
DBusGMainLoop(set_as_default=True)
3193
main_loop = GLib.MainLoop()
2017
3194
bus = dbus.SystemBus()
2018
3195
# End of Avahi example code
2019
3196
if use_dbus:
2020
3197
try:
2021
3198
bus_name = dbus.service.BusName("se.recompile.Mandos",
2022
bus, do_not_queue=True)
2023
old_bus_name = (dbus.service.BusName
2024
("se.bsnet.fukt.Mandos", bus,
2025
do_not_queue=True))
2026
except dbus.exceptions.NameExistsException as e:
2027
logger.error(unicode(e) + ", disabling D-Bus")
3199
bus,
3200
do_not_queue=True)
3201
old_bus_name = dbus.service.BusName(
3202
"se.bsnet.fukt.Mandos", bus,
3203
do_not_queue=True)
3204
except dbus.exceptions.DBusException as e:
3205
logger.error("Disabling D-Bus:", exc_info=e)
2028
3206
use_dbus = False
2029
3207
server_settings["use_dbus"] = False
2030
3208
tcp_server.use_dbus = False
2031
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2032
service = AvahiServiceToSyslog(name =
2033
server_settings["servicename"],
2034
servicetype = "_mandos._tcp",
2035
protocol = protocol, bus = bus)
2036
if server_settings["interface"]:
2037
service.interface = (if_nametoindex
2038
(str(server_settings["interface"])))
2039
3209
if zeroconf:
3210
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3211
service = AvahiServiceToSyslog(
3212
name=server_settings["servicename"],
3213
servicetype="_mandos._tcp",
3214
protocol=protocol,
3215
bus=bus)
3216
if server_settings["interface"]:
3217
service.interface = if_nametoindex(
3218
server_settings["interface"].encode("utf-8"))
3219
2040
3220
global multiprocessing_manager
2041
3221
multiprocessing_manager = multiprocessing.Manager()
2042
3222
2043
3223
client_class = Client
2044
3224
if use_dbus:
2045
client_class = functools.partial(ClientDBusTransitional,
2046
bus = bus)
2047
def client_config_items(config, section):
2048
special_settings = {
2049
"approved_by_default":
2050
lambda: config.getboolean(section,
2051
"approved_by_default"),
2052
}
2053
for name, value in config.items(section):
3225
client_class = functools.partial(ClientDBus, bus=bus)
3226
3227
client_settings = Client.config_parser(client_config)
3228
old_client_settings = {}
3229
clients_data = {}
3230
3231
# This is used to redirect stdout and stderr for checker processes
3232
global wnull
3233
wnull = open(os.devnull, "w") # A writable /dev/null
3234
# Only used if server is running in foreground but not in debug
3235
# mode
3236
if debug or not foreground:
3237
wnull.close()
3238
3239
# Get client data and settings from last running state.
3240
if server_settings["restore"]:
3241
try:
3242
with open(stored_state_path, "rb") as stored_state:
3243
if sys.version_info.major == 2:
3244
clients_data, old_client_settings = pickle.load(
3245
stored_state)
3246
else:
3247
bytes_clients_data, bytes_old_client_settings = (
3248
pickle.load(stored_state, encoding="bytes"))
3249
# Fix bytes to strings
3250
# clients_data
3251
# .keys()
3252
clients_data = {(key.decode("utf-8")
3253
if isinstance(key, bytes)
3254
else key): value
3255
for key, value in
3256
bytes_clients_data.items()}
3257
del bytes_clients_data
3258
for key in clients_data:
3259
value = {(k.decode("utf-8")
3260
if isinstance(k, bytes) else k): v
3261
for k, v in
3262
clients_data[key].items()}
3263
clients_data[key] = value
3264
# .client_structure
3265
value["client_structure"] = [
3266
(s.decode("utf-8")
3267
if isinstance(s, bytes)
3268
else s) for s in
3269
value["client_structure"]]
3270
# .name, .host, and .checker_command
3271
for k in ("name", "host", "checker_command"):
3272
if isinstance(value[k], bytes):
3273
value[k] = value[k].decode("utf-8")
3274
if "key_id" not in value:
3275
value["key_id"] = ""
3276
elif "fingerprint" not in value:
3277
value["fingerprint"] = ""
3278
# old_client_settings
3279
# .keys()
3280
old_client_settings = {
3281
(key.decode("utf-8")
3282
if isinstance(key, bytes)
3283
else key): value
3284
for key, value in
3285
bytes_old_client_settings.items()}
3286
del bytes_old_client_settings
3287
# .host and .checker_command
3288
for value in old_client_settings.values():
3289
for attribute in ("host", "checker_command"):
3290
if isinstance(value[attribute], bytes):
3291
value[attribute] = (value[attribute]
3292
.decode("utf-8"))
3293
os.remove(stored_state_path)
3294
except IOError as e:
3295
if e.errno == errno.ENOENT:
3296
logger.warning("Could not load persistent state:"
3297
" {}".format(os.strerror(e.errno)))
3298
else:
3299
logger.critical("Could not load persistent state:",
3300
exc_info=e)
3301
raise
3302
except EOFError as e:
3303
logger.warning("Could not load persistent state: "
3304
"EOFError:",
3305
exc_info=e)
3306
3307
with PGPEngine() as pgp:
3308
for client_name, client in clients_data.items():
3309
# Skip removed clients
3310
if client_name not in client_settings:
3311
continue
3312
3313
# Decide which value to use after restoring saved state.
3314
# We have three different values: Old config file,
3315
# new config file, and saved state.
3316
# New config value takes precedence if it differs from old
3317
# config value, otherwise use saved state.
3318
for name, value in client_settings[client_name].items():
3319
try:
3320
# For each value in new config, check if it
3321
# differs from the old config value (Except for
3322
# the "secret" attribute)
3323
if (name != "secret"
3324
and (value !=
3325
old_client_settings[client_name][name])):
3326
client[name] = value
3327
except KeyError:
3328
pass
3329
3330
# Clients who has passed its expire date can still be
3331
# enabled if its last checker was successful. A Client
3332
# whose checker succeeded before we stored its state is
3333
# assumed to have successfully run all checkers during
3334
# downtime.
3335
if client["enabled"]:
3336
if datetime.datetime.utcnow() >= client["expires"]:
3337
if not client["last_checked_ok"]:
3338
logger.warning(
3339
"disabling client {} - Client never "
3340
"performed a successful checker".format(
3341
client_name))
3342
client["enabled"] = False
3343
elif client["last_checker_status"] != 0:
3344
logger.warning(
3345
"disabling client {} - Client last"
3346
" checker failed with error code"
3347
" {}".format(
3348
client_name,
3349
client["last_checker_status"]))
3350
client["enabled"] = False
3351
else:
3352
client["expires"] = (
3353
datetime.datetime.utcnow()
3354
+ client["timeout"])
3355
logger.debug("Last checker succeeded,"
3356
" keeping {} enabled".format(
3357
client_name))
2054
3358
try:
2055
yield (name, special_settings[name]())
2056
except KeyError:
2057
yield (name, value)
2058
2059
tcp_server.clients.update(set(
2060
client_class(name = section,
2061
config= dict(client_config_items(
2062
client_config, section)))
2063
for section in client_config.sections()))
3359
client["secret"] = pgp.decrypt(
3360
client["encrypted_secret"],
3361
client_settings[client_name]["secret"])
3362
except PGPError:
3363
# If decryption fails, we use secret from new settings
3364
logger.debug("Failed to decrypt {} old secret".format(
3365
client_name))
3366
client["secret"] = (client_settings[client_name]
3367
["secret"])
3368
3369
# Add/remove clients based on new changes made to config
3370
for client_name in (set(old_client_settings)
3371
- set(client_settings)):
3372
del clients_data[client_name]
3373
for client_name in (set(client_settings)
3374
- set(old_client_settings)):
3375
clients_data[client_name] = client_settings[client_name]
3376
3377
# Create all client objects
3378
for client_name, client in clients_data.items():
3379
tcp_server.clients[client_name] = client_class(
3380
name=client_name,
3381
settings=client,
3382
server_settings=server_settings)
3383
2064
3384
if not tcp_server.clients:
2065
3385
logger.warning("No clients defined")
2066
2067
if not debug:
2068
try:
2069
with pidfile:
2070
pid = os.getpid()
2071
pidfile.write(str(pid) + "\n".encode("utf-8"))
2072
del pidfile
2073
except IOError:
2074
logger.error("Could not write to file %r with PID %d",
2075
pidfilename, pid)
2076
except NameError:
2077
# "pidfile" was never created
2078
pass
3386
3387
if not foreground:
3388
if pidfile is not None:
3389
pid = os.getpid()
3390
try:
3391
with pidfile:
3392
print(pid, file=pidfile)
3393
except IOError:
3394
logger.error("Could not write to file %r with PID %d",
3395
pidfilename, pid)
3396
del pidfile
2079
3397
del pidfilename
2080
2081
signal.signal(signal.SIGINT, signal.SIG_IGN)
2082
2083
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2084
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2085
3398
3399
for termsig in (signal.SIGHUP, signal.SIGTERM):
3400
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3401
lambda: main_loop.quit() and False)
3402
2086
3403
if use_dbus:
2087
class MandosDBusService(dbus.service.Object):
3404
3405
@alternate_dbus_interfaces(
3406
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3407
class MandosDBusService(DBusObjectWithObjectManager):
2088
3408
"""A D-Bus proxy object"""
3409
2089
3410
def __init__(self):
2090
3411
dbus.service.Object.__init__(self, bus, "/")
3412
2091
3413
_interface = "se.recompile.Mandos"
2092
3414
2093
3415
@dbus.service.signal(_interface, signature="o")
2094
3416
def ClientAdded(self, objpath):
2095
3417
"D-Bus signal"
2096
3418
pass
2097
3419
2098
3420
@dbus.service.signal(_interface, signature="ss")
2099
def ClientNotFound(self, fingerprint, address):
3421
def ClientNotFound(self, key_id, address):
2100
3422
"D-Bus signal"
2101
3423
pass
2102
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2103
3427
@dbus.service.signal(_interface, signature="os")
2104
3428
def ClientRemoved(self, objpath, name):
2105
3429
"D-Bus signal"
2106
3430
pass
2107
3431
3432
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3433
"true"})
2108
3434
@dbus.service.method(_interface, out_signature="ao")
2109
3435
def GetAllClients(self):
2110
3436
"D-Bus method"
2111
return dbus.Array(c.dbus_object_path
2112
for c in tcp_server.clients)
2113
3437
return dbus.Array(c.dbus_object_path for c in
3438
tcp_server.clients.values())
3439
3440
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3441
"true"})
2114
3442
@dbus.service.method(_interface,
2115
3443
out_signature="a{oa{sv}}")
2116
3444
def GetAllClientsWithProperties(self):
2117
3445
"D-Bus method"
2118
3446
return dbus.Dictionary(
2119
((c.dbus_object_path, c.GetAll(""))
2120
for c in tcp_server.clients),
3447
{c.dbus_object_path: c.GetAll(
3448
"se.recompile.Mandos.Client")
3449
for c in tcp_server.clients.values()},
2121
3450
signature="oa{sv}")
2122
3451
2123
3452
@dbus.service.method(_interface, in_signature="o")
2124
3453
def RemoveClient(self, object_path):
2125
3454
"D-Bus method"
2126
for c in tcp_server.clients:
3455
for c in tcp_server.clients.values():
2127
3456
if c.dbus_object_path == object_path:
2128
tcp_server.clients.remove(c)
3457
del tcp_server.clients[c.name]
2129
3458
c.remove_from_connection()
2130
# Don't signal anything except ClientRemoved
3459
# Don't signal the disabling
2131
3460
c.disable(quiet=True)
2132
# Emit D-Bus signal
2133
self.ClientRemoved(object_path, c.name)
3461
# Emit D-Bus signal for removal
3462
self.client_removed_signal(c)
2134
3463
return
2135
3464
raise KeyError(object_path)
2136
3465
2137
3466
del _interface
2138
2139
class MandosDBusServiceTransitional(MandosDBusService):
2140
__metaclass__ = AlternateDBusNamesMetaclass
2141
mandos_dbus_service = MandosDBusServiceTransitional()
2142
3467
3468
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3469
out_signature="a{oa{sa{sv}}}")
3470
def GetManagedObjects(self):
3471
"""D-Bus method"""
3472
return dbus.Dictionary(
3473
{client.dbus_object_path:
3474
dbus.Dictionary(
3475
{interface: client.GetAll(interface)
3476
for interface in
3477
client._get_all_interface_names()})
3478
for client in tcp_server.clients.values()})
3479
3480
def client_added_signal(self, client):
3481
"""Send the new standard signal and the old signal"""
3482
if use_dbus:
3483
# New standard signal
3484
self.InterfacesAdded(
3485
client.dbus_object_path,
3486
dbus.Dictionary(
3487
{interface: client.GetAll(interface)
3488
for interface in
3489
client._get_all_interface_names()}))
3490
# Old signal
3491
self.ClientAdded(client.dbus_object_path)
3492
3493
def client_removed_signal(self, client):
3494
"""Send the new standard signal and the old signal"""
3495
if use_dbus:
3496
# New standard signal
3497
self.InterfacesRemoved(
3498
client.dbus_object_path,
3499
client._get_all_interface_names())
3500
# Old signal
3501
self.ClientRemoved(client.dbus_object_path,
3502
client.name)
3503
3504
mandos_dbus_service = MandosDBusService()
3505
3506
# Save modules to variables to exempt the modules from being
3507
# unloaded before the function registered with atexit() is run.
3508
mp = multiprocessing
3509
wn = wnull
3510
2143
3511
def cleanup():
2144
3512
"Cleanup function; run on exit"
2145
service.cleanup()
2146
2147
multiprocessing.active_children()
3513
if zeroconf:
3514
service.cleanup()
3515
3516
mp.active_children()
3517
wn.close()
3518
if not (tcp_server.clients or client_settings):
3519
return
3520
3521
# Store client before exiting. Secrets are encrypted with key
3522
# based on what config file has. If config file is
3523
# removed/edited, old secret will thus be unrecovable.
3524
clients = {}
3525
with PGPEngine() as pgp:
3526
for client in tcp_server.clients.values():
3527
key = client_settings[client.name]["secret"]
3528
client.encrypted_secret = pgp.encrypt(client.secret,
3529
key)
3530
client_dict = {}
3531
3532
# A list of attributes that can not be pickled
3533
# + secret.
3534
exclude = {"bus", "changedstate", "secret",
3535
"checker", "server_settings"}
3536
for name, typ in inspect.getmembers(dbus.service
3537
.Object):
3538
exclude.add(name)
3539
3540
client_dict["encrypted_secret"] = (client
3541
.encrypted_secret)
3542
for attr in client.client_structure:
3543
if attr not in exclude:
3544
client_dict[attr] = getattr(client, attr)
3545
3546
clients[client.name] = client_dict
3547
del client_settings[client.name]["secret"]
3548
3549
try:
3550
with tempfile.NamedTemporaryFile(
3551
mode='wb',
3552
suffix=".pickle",
3553
prefix='clients-',
3554
dir=os.path.dirname(stored_state_path),
3555
delete=False) as stored_state:
3556
pickle.dump((clients, client_settings), stored_state,
3557
protocol=2)
3558
tempname = stored_state.name
3559
os.rename(tempname, stored_state_path)
3560
except (IOError, OSError) as e:
3561
if not debug:
3562
try:
3563
os.remove(tempname)
3564
except NameError:
3565
pass
3566
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3567
logger.warning("Could not save persistent state: {}"
3568
.format(os.strerror(e.errno)))
3569
else:
3570
logger.warning("Could not save persistent state:",
3571
exc_info=e)
3572
raise
3573
3574
# Delete all clients, and settings from config
2148
3575
while tcp_server.clients:
2149
client = tcp_server.clients.pop()
3576
name, client = tcp_server.clients.popitem()
2150
3577
if use_dbus:
2151
3578
client.remove_from_connection()
2152
client.disable_hook = None
2153
# Don't signal anything except ClientRemoved
3579
# Don't signal the disabling
2154
3580
client.disable(quiet=True)
3581
# Emit D-Bus signal for removal
2155
3582
if use_dbus:
2156
# Emit D-Bus signal
2157
mandos_dbus_service.ClientRemoved(client
2158
.dbus_object_path,
2159
client.name)
2160
3583
mandos_dbus_service.client_removed_signal(client)
3584
client_settings.clear()
3585
2161
3586
atexit.register(cleanup)
2162
2163
for client in tcp_server.clients:
3587
3588
for client in tcp_server.clients.values():
2164
3589
if use_dbus:
2165
# Emit D-Bus signal
2166
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2167
client.enable()
2168
3590
# Emit D-Bus signal for adding
3591
mandos_dbus_service.client_added_signal(client)
3592
# Need to initiate checking of clients
3593
if client.enabled:
3594
client.init_checker()
3595
2169
3596
tcp_server.enable()
2170
3597
tcp_server.server_activate()
2171
3598
2172
3599
# Find out what port we got
2173
service.port = tcp_server.socket.getsockname()[1]
3600
if zeroconf:
3601
service.port = tcp_server.socket.getsockname()[1]
2174
3602
if use_ipv6:
2175
3603
logger.info("Now listening on address %r, port %d,"
2176
" flowinfo %d, scope_id %d"
2177
% tcp_server.socket.getsockname())
3604
" flowinfo %d, scope_id %d",
3605
*tcp_server.socket.getsockname())
2178
3606
else: # IPv4
2179
logger.info("Now listening on address %r, port %d"
2180
% tcp_server.socket.getsockname())
2181
2182
#service.interface = tcp_server.socket.getsockname()[3]
2183
3607
logger.info("Now listening on address %r, port %d",
3608
*tcp_server.socket.getsockname())
3609
3610
# service.interface = tcp_server.socket.getsockname()[3]
3611
2184
3612
try:
2185
# From the Avahi example code
2186
try:
2187
service.activate()
2188
except dbus.exceptions.DBusException as error:
2189
logger.critical("DBusException: %s", error)
2190
cleanup()
2191
sys.exit(1)
2192
# End of Avahi example code
2193
2194
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2195
lambda *args, **kwargs:
2196
(tcp_server.handle_request
2197
(*args[2:], **kwargs) or True))
2198
3613
if zeroconf:
3614
# From the Avahi example code
3615
try:
3616
service.activate()
3617
except dbus.exceptions.DBusException as error:
3618
logger.critical("D-Bus Exception", exc_info=error)
3619
cleanup()
3620
sys.exit(1)
3621
# End of Avahi example code
3622
3623
GLib.io_add_watch(
3624
GLib.IOChannel.unix_new(tcp_server.fileno()),
3625
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3626
lambda *args, **kwargs: (tcp_server.handle_request
3627
(*args[2:], **kwargs) or True))
3628
2199
3629
logger.debug("Starting main loop")
2200
3630
main_loop.run()
2201
3631
except AvahiError as error:
2202
logger.critical("AvahiError: %s", error)
3632
logger.critical("Avahi Error", exc_info=error)
2203
3633
cleanup()
2204
3634
sys.exit(1)
2205
3635
except KeyboardInterrupt:
2210
3640
# Must run before the D-Bus bus name gets deregistered
2211
3641
cleanup()
2212
3642
3643
3644
def should_only_run_tests():
3645
parser = argparse.ArgumentParser(add_help=False)
3646
parser.add_argument("--check", action='store_true')
3647
args, unknown_args = parser.parse_known_args()
3648
run_tests = args.check
3649
if run_tests:
3650
# Remove --check argument from sys.argv
3651
sys.argv[1:] = unknown_args
3652
return run_tests
3653
3654
# Add all tests from doctest strings
3655
def load_tests(loader, tests, none):
3656
import doctest
3657
tests.addTests(doctest.DocTestSuite())
3658
return tests
2213
3659
2214
3660
if __name__ == '__main__':
2215
main()
3661
try:
3662
if should_only_run_tests():
3663
# Call using ./mandos --check [--verbose]
3664
unittest.main()
3665
else:
3666
main()
3667
finally:
3668
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0