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- Committer: Teddy Hogeborn
- Date: 2012-01-01 20:45:53 UTC
- Revision ID: teddy@recompile.se-20120101204553-f1zlty873gswtf5n
* README: Hint that the intro(8mandos) manual page is in the server
package.
package.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -b
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2012 Teddy Hogeborn
15
# Copyright © 2008-2012 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
66
import binascii
76
67
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
68
82
69
import dbus
83
70
import dbus.service
84
import gi
85
from gi.repository import GLib
71
import gobject
72
import avahi
86
73
from dbus.mainloop.glib import DBusGMainLoop
87
74
import ctypes
88
75
import ctypes.util
89
76
import xml.dom.minidom
90
77
import inspect
91
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
95
# Show warnings by default
96
if not sys.warnoptions:
97
import warnings
98
warnings.simplefilter("default")
99
100
# Try to find the value of SO_BINDTODEVICE:
78
import GnuPGInterface
79
101
80
try:
102
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
103
# newer, and it is also the most natural place for it:
104
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
105
82
except AttributeError:
106
83
try:
107
# This is where SO_BINDTODEVICE was up to and including Python
108
# 2.6, and also 3.2:
109
84
from IN import SO_BINDTODEVICE
110
85
except ImportError:
111
# In Python 2.7 it seems to have been removed entirely.
112
# Try running the C preprocessor:
113
try:
114
cc = subprocess.Popen(["cc", "--language=c", "-E",
115
"/dev/stdin"],
116
stdin=subprocess.PIPE,
117
stdout=subprocess.PIPE)
118
stdout = cc.communicate(
119
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
120
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
121
except (OSError, ValueError, IndexError):
122
# No value found
123
SO_BINDTODEVICE = None
124
125
if sys.version_info.major == 2:
126
str = unicode
127
128
if sys.version_info < (3, 2):
129
configparser.Configparser = configparser.SafeConfigParser
130
131
version = "1.8.9"
86
SO_BINDTODEVICE = None
87
88
version = "1.5.0"
132
89
stored_state_file = "clients.pickle"
133
90
134
91
logger = logging.getLogger()
135
logging.captureWarnings(True) # Show warnings via the logging system
136
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
137
95
138
96
try:
139
if_nametoindex = ctypes.cdll.LoadLibrary(
140
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
141
100
except (OSError, AttributeError):
142
143
101
def if_nametoindex(interface):
144
102
"Get an interface index the hard way, i.e. using fcntl()"
145
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
146
104
with contextlib.closing(socket.socket()) as s:
147
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
148
struct.pack(b"16s16x", interface))
149
interface_index = struct.unpack("I", ifreq[16:20])[0]
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
150
110
return interface_index
151
111
152
112
153
def copy_function(func):
154
"""Make a copy of a function"""
155
if sys.version_info.major == 2:
156
return types.FunctionType(func.func_code,
157
func.func_globals,
158
func.func_name,
159
func.func_defaults,
160
func.func_closure)
161
else:
162
return types.FunctionType(func.__code__,
163
func.__globals__,
164
func.__name__,
165
func.__defaults__,
166
func.__closure__)
167
168
169
113
def initlogger(debug, level=logging.WARNING):
170
114
"""init logger and add loglevel"""
171
172
global syslogger
173
syslogger = (logging.handlers.SysLogHandler(
174
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
175
address="/dev/log"))
115
176
116
syslogger.setFormatter(logging.Formatter
177
117
('Mandos [%(process)d]: %(levelname)s:'
178
118
' %(message)s'))
179
119
logger.addHandler(syslogger)
180
120
181
121
if debug:
182
122
console = logging.StreamHandler()
183
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
193
133
pass
194
134
195
135
196
class PGPEngine:
136
class PGPEngine(object):
197
137
"""A simple class for OpenPGP symmetric encryption & decryption"""
198
199
138
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
200
140
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
201
self.gpg = "gpg"
202
try:
203
output = subprocess.check_output(["gpgconf"])
204
for line in output.splitlines():
205
name, text, path = line.split(b":")
206
if name == b"gpg":
207
self.gpg = path
208
break
209
except OSError as e:
210
if e.errno != errno.ENOENT:
211
raise
212
self.gnupgargs = ['--batch',
213
'--homedir', self.tempdir,
214
'--force-mdc',
215
'--quiet']
216
# Only GPG version 1 has the --no-use-agent option.
217
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
218
self.gnupgargs.append("--no-use-agent")
219
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
145
'--quiet',
146
'--no-use-agent'])
147
220
148
def __enter__(self):
221
149
return self
222
223
def __exit__(self, exc_type, exc_value, traceback):
150
151
def __exit__ (self, exc_type, exc_value, traceback):
224
152
self._cleanup()
225
153
return False
226
154
227
155
def __del__(self):
228
156
self._cleanup()
229
157
230
158
def _cleanup(self):
231
159
if self.tempdir is not None:
232
160
# Delete contents of tempdir
233
161
for root, dirs, files in os.walk(self.tempdir,
234
topdown=False):
162
topdown = False):
235
163
for filename in files:
236
164
os.remove(os.path.join(root, filename))
237
165
for dirname in dirs:
239
167
# Remove tempdir
240
168
os.rmdir(self.tempdir)
241
169
self.tempdir = None
242
170
243
171
def password_encode(self, password):
244
172
# Passphrase can not be empty and can not contain newlines or
245
173
# NUL bytes. So we prefix it and hex encode it.
246
encoded = b"mandos" + binascii.hexlify(password)
247
if len(encoded) > 2048:
248
# GnuPG can't handle long passwords, so encode differently
249
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
250
.replace(b"\n", b"\\n")
251
.replace(b"\0", b"\\x00"))
252
return encoded
253
174
return b"mandos" + binascii.hexlify(password)
175
254
176
def encrypt(self, data, password):
255
passphrase = self.password_encode(password)
256
with tempfile.NamedTemporaryFile(
257
dir=self.tempdir) as passfile:
258
passfile.write(passphrase)
259
passfile.flush()
260
proc = subprocess.Popen([self.gpg, '--symmetric',
261
'--passphrase-file',
262
passfile.name]
263
+ self.gnupgargs,
264
stdin=subprocess.PIPE,
265
stdout=subprocess.PIPE,
266
stderr=subprocess.PIPE)
267
ciphertext, err = proc.communicate(input=data)
268
if proc.returncode != 0:
269
raise PGPError(err)
177
self.gnupg.passphrase = self.password_encode(password)
178
with open(os.devnull) as devnull:
179
try:
180
proc = self.gnupg.run(['--symmetric'],
181
create_fhs=['stdin', 'stdout'],
182
attach_fhs={'stderr': devnull})
183
with contextlib.closing(proc.handles['stdin']) as f:
184
f.write(data)
185
with contextlib.closing(proc.handles['stdout']) as f:
186
ciphertext = f.read()
187
proc.wait()
188
except IOError as e:
189
raise PGPError(e)
190
self.gnupg.passphrase = None
270
191
return ciphertext
271
192
272
193
def decrypt(self, data, password):
273
passphrase = self.password_encode(password)
274
with tempfile.NamedTemporaryFile(
275
dir=self.tempdir) as passfile:
276
passfile.write(passphrase)
277
passfile.flush()
278
proc = subprocess.Popen([self.gpg, '--decrypt',
279
'--passphrase-file',
280
passfile.name]
281
+ self.gnupgargs,
282
stdin=subprocess.PIPE,
283
stdout=subprocess.PIPE,
284
stderr=subprocess.PIPE)
285
decrypted_plaintext, err = proc.communicate(input=data)
286
if proc.returncode != 0:
287
raise PGPError(err)
194
self.gnupg.passphrase = self.password_encode(password)
195
with open(os.devnull) as devnull:
196
try:
197
proc = self.gnupg.run(['--decrypt'],
198
create_fhs=['stdin', 'stdout'],
199
attach_fhs={'stderr': devnull})
200
with contextlib.closing(proc.handles['stdin'] ) as f:
201
f.write(data)
202
with contextlib.closing(proc.handles['stdout']) as f:
203
decrypted_plaintext = f.read()
204
proc.wait()
205
except IOError as e:
206
raise PGPError(e)
207
self.gnupg.passphrase = None
288
208
return decrypted_plaintext
289
209
290
210
291
# Pretend that we have an Avahi module
292
class avahi:
293
"""This isn't so much a class as it is a module-like namespace."""
294
IF_UNSPEC = -1 # avahi-common/address.h
295
PROTO_UNSPEC = -1 # avahi-common/address.h
296
PROTO_INET = 0 # avahi-common/address.h
297
PROTO_INET6 = 1 # avahi-common/address.h
298
DBUS_NAME = "org.freedesktop.Avahi"
299
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
300
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
301
DBUS_PATH_SERVER = "/"
302
303
@staticmethod
304
def string_array_to_txt_array(t):
305
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
306
for s in t), signature="ay")
307
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
308
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
309
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
310
SERVER_INVALID = 0 # avahi-common/defs.h
311
SERVER_REGISTERING = 1 # avahi-common/defs.h
312
SERVER_RUNNING = 2 # avahi-common/defs.h
313
SERVER_COLLISION = 3 # avahi-common/defs.h
314
SERVER_FAILURE = 4 # avahi-common/defs.h
315
316
211
317
212
class AvahiError(Exception):
318
213
def __init__(self, value, *args, **kwargs):
319
214
self.value = value
320
return super(AvahiError, self).__init__(value, *args,
321
**kwargs)
322
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
323
218
324
219
class AvahiServiceError(AvahiError):
325
220
pass
326
221
327
328
222
class AvahiGroupError(AvahiError):
329
223
pass
330
224
331
225
332
class AvahiService:
226
class AvahiService(object):
333
227
"""An Avahi (Zeroconf) service.
334
228
335
229
Attributes:
336
230
interface: integer; avahi.IF_UNSPEC or an interface index.
337
231
Used to optionally bind to the specified interface.
338
232
name: string; Example: 'Mandos'
339
233
type: string; Example: '_mandos._tcp'.
340
See <https://www.iana.org/assignments/service-names-port-numbers>
234
See <http://www.dns-sd.org/ServiceTypes.html>
341
235
port: integer; what port to announce
342
236
TXT: list of strings; TXT record for the service
343
237
domain: string; Domain to publish on, default to .local if empty.
349
243
server: D-Bus Server
350
244
bus: dbus.SystemBus()
351
245
"""
352
353
def __init__(self,
354
interface=avahi.IF_UNSPEC,
355
name=None,
356
servicetype=None,
357
port=None,
358
TXT=None,
359
domain="",
360
host="",
361
max_renames=32768,
362
protocol=avahi.PROTO_UNSPEC,
363
bus=None):
246
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
247
servicetype = None, port = None, TXT = None,
248
domain = "", host = "", max_renames = 32768,
249
protocol = avahi.PROTO_UNSPEC, bus = None):
364
250
self.interface = interface
365
251
self.name = name
366
252
self.type = servicetype
375
261
self.server = None
376
262
self.bus = bus
377
263
self.entry_group_state_changed_match = None
378
379
def rename(self, remove=True):
264
def rename(self):
380
265
"""Derived from the Avahi example code"""
381
266
if self.rename_count >= self.max_renames:
382
267
logger.critical("No suitable Zeroconf service name found"
383
268
" after %i retries, exiting.",
384
269
self.rename_count)
385
270
raise AvahiServiceError("Too many renames")
386
self.name = str(
387
self.server.GetAlternativeServiceName(self.name))
388
self.rename_count += 1
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
389
273
logger.info("Changing Zeroconf service name to %r ...",
390
274
self.name)
391
if remove:
392
self.remove()
275
self.remove()
393
276
try:
394
277
self.add()
395
278
except dbus.exceptions.DBusException as error:
396
if (error.get_dbus_name()
397
== "org.freedesktop.Avahi.CollisionError"):
398
logger.info("Local Zeroconf service name collision.")
399
return self.rename(remove=False)
400
else:
401
logger.critical("D-Bus Exception", exc_info=error)
402
self.cleanup()
403
os._exit(1)
404
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
405
283
def remove(self):
406
284
"""Derived from the Avahi example code"""
407
285
if self.entry_group_state_changed_match is not None:
409
287
self.entry_group_state_changed_match = None
410
288
if self.group is not None:
411
289
self.group.Reset()
412
413
290
def add(self):
414
291
"""Derived from the Avahi example code"""
415
292
self.remove()
432
309
dbus.UInt16(self.port),
433
310
avahi.string_array_to_txt_array(self.TXT))
434
311
self.group.Commit()
435
436
312
def entry_group_state_changed(self, state, error):
437
313
"""Derived from the Avahi example code"""
438
314
logger.debug("Avahi entry group state change: %i", state)
439
315
440
316
if state == avahi.ENTRY_GROUP_ESTABLISHED:
441
317
logger.debug("Zeroconf service established.")
442
318
elif state == avahi.ENTRY_GROUP_COLLISION:
444
320
self.rename()
445
321
elif state == avahi.ENTRY_GROUP_FAILURE:
446
322
logger.critical("Avahi: Error in group state changed %s",
447
str(error))
448
raise AvahiGroupError("State changed: {!s}".format(error))
449
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
450
326
def cleanup(self):
451
327
"""Derived from the Avahi example code"""
452
328
if self.group is not None:
457
333
pass
458
334
self.group = None
459
335
self.remove()
460
461
336
def server_state_changed(self, state, error=None):
462
337
"""Derived from the Avahi example code"""
463
338
logger.debug("Avahi server state change: %i", state)
464
bad_states = {
465
avahi.SERVER_INVALID: "Zeroconf server invalid",
466
avahi.SERVER_REGISTERING: None,
467
avahi.SERVER_COLLISION: "Zeroconf server name collision",
468
avahi.SERVER_FAILURE: "Zeroconf server failure",
469
}
339
bad_states = { avahi.SERVER_INVALID:
340
"Zeroconf server invalid",
341
avahi.SERVER_REGISTERING: None,
342
avahi.SERVER_COLLISION:
343
"Zeroconf server name collision",
344
avahi.SERVER_FAILURE:
345
"Zeroconf server failure" }
470
346
if state in bad_states:
471
347
if bad_states[state] is not None:
472
348
if error is None:
475
351
logger.error(bad_states[state] + ": %r", error)
476
352
self.cleanup()
477
353
elif state == avahi.SERVER_RUNNING:
478
try:
479
self.add()
480
except dbus.exceptions.DBusException as error:
481
if (error.get_dbus_name()
482
== "org.freedesktop.Avahi.CollisionError"):
483
logger.info("Local Zeroconf service name"
484
" collision.")
485
return self.rename(remove=False)
486
else:
487
logger.critical("D-Bus Exception", exc_info=error)
488
self.cleanup()
489
os._exit(1)
354
self.add()
490
355
else:
491
356
if error is None:
492
357
logger.debug("Unknown state: %r", state)
493
358
else:
494
359
logger.debug("Unknown state: %r: %r", state, error)
495
496
360
def activate(self):
497
361
"""Derived from the Avahi example code"""
498
362
if self.server is None:
502
366
follow_name_owner_changes=True),
503
367
avahi.DBUS_INTERFACE_SERVER)
504
368
self.server.connect_to_signal("StateChanged",
505
self.server_state_changed)
369
self.server_state_changed)
506
370
self.server_state_changed(self.server.GetState())
507
371
508
509
372
class AvahiServiceToSyslog(AvahiService):
510
def rename(self, *args, **kwargs):
373
def rename(self):
511
374
"""Add the new name to the syslog messages"""
512
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
513
syslogger.setFormatter(logging.Formatter(
514
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
515
.format(self.name)))
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
379
% self.name))
516
380
return ret
517
381
518
519
# Pretend that we have a GnuTLS module
520
class gnutls:
521
"""This isn't so much a class as it is a module-like namespace."""
522
523
library = ctypes.util.find_library("gnutls")
524
if library is None:
525
library = ctypes.util.find_library("gnutls-deb0")
526
_library = ctypes.cdll.LoadLibrary(library)
527
del library
528
529
# Unless otherwise indicated, the constants and types below are
530
# all from the gnutls/gnutls.h C header file.
531
532
# Constants
533
E_SUCCESS = 0
534
E_INTERRUPTED = -52
535
E_AGAIN = -28
536
CRT_OPENPGP = 2
537
CRT_RAWPK = 3
538
CLIENT = 2
539
SHUT_RDWR = 0
540
CRD_CERTIFICATE = 1
541
E_NO_CERTIFICATE_FOUND = -49
542
X509_FMT_DER = 0
543
NO_TICKETS = 1<<10
544
ENABLE_RAWPK = 1<<18
545
CTYPE_PEERS = 3
546
KEYID_USE_SHA256 = 1 # gnutls/x509.h
547
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
548
549
# Types
550
class session_int(ctypes.Structure):
551
_fields_ = []
552
session_t = ctypes.POINTER(session_int)
553
554
class certificate_credentials_st(ctypes.Structure):
555
_fields_ = []
556
certificate_credentials_t = ctypes.POINTER(
557
certificate_credentials_st)
558
certificate_type_t = ctypes.c_int
559
560
class datum_t(ctypes.Structure):
561
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
562
('size', ctypes.c_uint)]
563
564
class openpgp_crt_int(ctypes.Structure):
565
_fields_ = []
566
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
567
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
568
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
569
credentials_type_t = ctypes.c_int
570
transport_ptr_t = ctypes.c_void_p
571
close_request_t = ctypes.c_int
572
573
# Exceptions
574
class Error(Exception):
575
def __init__(self, message=None, code=None, args=()):
576
# Default usage is by a message string, but if a return
577
# code is passed, convert it to a string with
578
# gnutls.strerror()
579
self.code = code
580
if message is None and code is not None:
581
message = gnutls.strerror(code)
582
return super(gnutls.Error, self).__init__(
583
message, *args)
584
585
class CertificateSecurityError(Error):
586
pass
587
588
# Classes
589
class Credentials:
590
def __init__(self):
591
self._c_object = gnutls.certificate_credentials_t()
592
gnutls.certificate_allocate_credentials(
593
ctypes.byref(self._c_object))
594
self.type = gnutls.CRD_CERTIFICATE
595
596
def __del__(self):
597
gnutls.certificate_free_credentials(self._c_object)
598
599
class ClientSession:
600
def __init__(self, socket, credentials=None):
601
self._c_object = gnutls.session_t()
602
gnutls_flags = gnutls.CLIENT
603
if gnutls.check_version(b"3.5.6"):
604
gnutls_flags |= gnutls.NO_TICKETS
605
if gnutls.has_rawpk:
606
gnutls_flags |= gnutls.ENABLE_RAWPK
607
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
608
del gnutls_flags
609
gnutls.set_default_priority(self._c_object)
610
gnutls.transport_set_ptr(self._c_object, socket.fileno())
611
gnutls.handshake_set_private_extensions(self._c_object,
612
True)
613
self.socket = socket
614
if credentials is None:
615
credentials = gnutls.Credentials()
616
gnutls.credentials_set(self._c_object, credentials.type,
617
ctypes.cast(credentials._c_object,
618
ctypes.c_void_p))
619
self.credentials = credentials
620
621
def __del__(self):
622
gnutls.deinit(self._c_object)
623
624
def handshake(self):
625
return gnutls.handshake(self._c_object)
626
627
def send(self, data):
628
data = bytes(data)
629
data_len = len(data)
630
while data_len > 0:
631
data_len -= gnutls.record_send(self._c_object,
632
data[-data_len:],
633
data_len)
634
635
def bye(self):
636
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
637
638
# Error handling functions
639
def _error_code(result):
640
"""A function to raise exceptions on errors, suitable
641
for the 'restype' attribute on ctypes functions"""
642
if result >= 0:
643
return result
644
if result == gnutls.E_NO_CERTIFICATE_FOUND:
645
raise gnutls.CertificateSecurityError(code=result)
646
raise gnutls.Error(code=result)
647
648
def _retry_on_error(result, func, arguments):
649
"""A function to retry on some errors, suitable
650
for the 'errcheck' attribute on ctypes functions"""
651
while result < 0:
652
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
653
return _error_code(result)
654
result = func(*arguments)
655
return result
656
657
# Unless otherwise indicated, the function declarations below are
658
# all from the gnutls/gnutls.h C header file.
659
660
# Functions
661
priority_set_direct = _library.gnutls_priority_set_direct
662
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
663
ctypes.POINTER(ctypes.c_char_p)]
664
priority_set_direct.restype = _error_code
665
666
init = _library.gnutls_init
667
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
668
init.restype = _error_code
669
670
set_default_priority = _library.gnutls_set_default_priority
671
set_default_priority.argtypes = [session_t]
672
set_default_priority.restype = _error_code
673
674
record_send = _library.gnutls_record_send
675
record_send.argtypes = [session_t, ctypes.c_void_p,
676
ctypes.c_size_t]
677
record_send.restype = ctypes.c_ssize_t
678
record_send.errcheck = _retry_on_error
679
680
certificate_allocate_credentials = (
681
_library.gnutls_certificate_allocate_credentials)
682
certificate_allocate_credentials.argtypes = [
683
ctypes.POINTER(certificate_credentials_t)]
684
certificate_allocate_credentials.restype = _error_code
685
686
certificate_free_credentials = (
687
_library.gnutls_certificate_free_credentials)
688
certificate_free_credentials.argtypes = [
689
certificate_credentials_t]
690
certificate_free_credentials.restype = None
691
692
handshake_set_private_extensions = (
693
_library.gnutls_handshake_set_private_extensions)
694
handshake_set_private_extensions.argtypes = [session_t,
695
ctypes.c_int]
696
handshake_set_private_extensions.restype = None
697
698
credentials_set = _library.gnutls_credentials_set
699
credentials_set.argtypes = [session_t, credentials_type_t,
700
ctypes.c_void_p]
701
credentials_set.restype = _error_code
702
703
strerror = _library.gnutls_strerror
704
strerror.argtypes = [ctypes.c_int]
705
strerror.restype = ctypes.c_char_p
706
707
certificate_type_get = _library.gnutls_certificate_type_get
708
certificate_type_get.argtypes = [session_t]
709
certificate_type_get.restype = _error_code
710
711
certificate_get_peers = _library.gnutls_certificate_get_peers
712
certificate_get_peers.argtypes = [session_t,
713
ctypes.POINTER(ctypes.c_uint)]
714
certificate_get_peers.restype = ctypes.POINTER(datum_t)
715
716
global_set_log_level = _library.gnutls_global_set_log_level
717
global_set_log_level.argtypes = [ctypes.c_int]
718
global_set_log_level.restype = None
719
720
global_set_log_function = _library.gnutls_global_set_log_function
721
global_set_log_function.argtypes = [log_func]
722
global_set_log_function.restype = None
723
724
deinit = _library.gnutls_deinit
725
deinit.argtypes = [session_t]
726
deinit.restype = None
727
728
handshake = _library.gnutls_handshake
729
handshake.argtypes = [session_t]
730
handshake.restype = _error_code
731
handshake.errcheck = _retry_on_error
732
733
transport_set_ptr = _library.gnutls_transport_set_ptr
734
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
735
transport_set_ptr.restype = None
736
737
bye = _library.gnutls_bye
738
bye.argtypes = [session_t, close_request_t]
739
bye.restype = _error_code
740
bye.errcheck = _retry_on_error
741
742
check_version = _library.gnutls_check_version
743
check_version.argtypes = [ctypes.c_char_p]
744
check_version.restype = ctypes.c_char_p
745
746
_need_version = b"3.3.0"
747
if check_version(_need_version) is None:
748
raise self.Error("Needs GnuTLS {} or later"
749
.format(_need_version))
750
751
_tls_rawpk_version = b"3.6.6"
752
has_rawpk = bool(check_version(_tls_rawpk_version))
753
754
if has_rawpk:
755
# Types
756
class pubkey_st(ctypes.Structure):
757
_fields = []
758
pubkey_t = ctypes.POINTER(pubkey_st)
759
760
x509_crt_fmt_t = ctypes.c_int
761
762
# All the function declarations below are from gnutls/abstract.h
763
pubkey_init = _library.gnutls_pubkey_init
764
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
765
pubkey_init.restype = _error_code
766
767
pubkey_import = _library.gnutls_pubkey_import
768
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
769
x509_crt_fmt_t]
770
pubkey_import.restype = _error_code
771
772
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
773
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
774
ctypes.POINTER(ctypes.c_ubyte),
775
ctypes.POINTER(ctypes.c_size_t)]
776
pubkey_get_key_id.restype = _error_code
777
778
pubkey_deinit = _library.gnutls_pubkey_deinit
779
pubkey_deinit.argtypes = [pubkey_t]
780
pubkey_deinit.restype = None
781
else:
782
# All the function declarations below are from gnutls/openpgp.h
783
784
openpgp_crt_init = _library.gnutls_openpgp_crt_init
785
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
786
openpgp_crt_init.restype = _error_code
787
788
openpgp_crt_import = _library.gnutls_openpgp_crt_import
789
openpgp_crt_import.argtypes = [openpgp_crt_t,
790
ctypes.POINTER(datum_t),
791
openpgp_crt_fmt_t]
792
openpgp_crt_import.restype = _error_code
793
794
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
795
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
796
ctypes.POINTER(ctypes.c_uint)]
797
openpgp_crt_verify_self.restype = _error_code
798
799
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
800
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
801
openpgp_crt_deinit.restype = None
802
803
openpgp_crt_get_fingerprint = (
804
_library.gnutls_openpgp_crt_get_fingerprint)
805
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
806
ctypes.c_void_p,
807
ctypes.POINTER(
808
ctypes.c_size_t)]
809
openpgp_crt_get_fingerprint.restype = _error_code
810
811
if check_version(b"3.6.4"):
812
certificate_type_get2 = _library.gnutls_certificate_type_get2
813
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
814
certificate_type_get2.restype = _error_code
815
816
# Remove non-public functions
817
del _error_code, _retry_on_error
818
819
820
def call_pipe(connection, # : multiprocessing.Connection
821
func, *args, **kwargs):
822
"""This function is meant to be called by multiprocessing.Process
823
824
This function runs func(*args, **kwargs), and writes the resulting
825
return value on the provided multiprocessing.Connection.
826
"""
827
connection.send(func(*args, **kwargs))
828
connection.close()
829
830
831
class Client:
382
def timedelta_to_milliseconds(td):
383
"Convert a datetime.timedelta() to milliseconds"
384
return ((td.days * 24 * 60 * 60 * 1000)
385
+ (td.seconds * 1000)
386
+ (td.microseconds // 1000))
387
388
class Client(object):
832
389
"""A representation of a client host served by this server.
833
390
834
391
Attributes:
835
392
approved: bool(); 'None' if not yet approved/disapproved
836
393
approval_delay: datetime.timedelta(); Time to wait for approval
837
394
approval_duration: datetime.timedelta(); Duration of one approval
838
checker: multiprocessing.Process(); a running checker process used
839
to see if the client lives. 'None' if no process is
840
running.
841
checker_callback_tag: a GLib event source tag, or None
395
checker: subprocess.Popen(); a running checker process used
396
to see if the client lives.
397
'None' if no process is running.
398
checker_callback_tag: a gobject event source tag, or None
842
399
checker_command: string; External command which is run to check
843
400
if client lives. %() expansions are done at
844
401
runtime with vars(self) as dict, so that for
845
402
instance %(name)s can be used in the command.
846
checker_initiator_tag: a GLib event source tag, or None
403
checker_initiator_tag: a gobject event source tag, or None
847
404
created: datetime.datetime(); (UTC) object creation
848
405
client_structure: Object describing what attributes a client has
849
406
and is used for storing the client at exit
850
407
current_checker_command: string; current running checker_command
851
disable_initiator_tag: a GLib event source tag, or None
408
disable_initiator_tag: a gobject event source tag, or None
852
409
enabled: bool()
853
410
fingerprint: string (40 or 32 hexadecimal digits); used to
854
uniquely identify an OpenPGP client
855
key_id: string (64 hexadecimal digits); used to uniquely identify
856
a client using raw public keys
411
uniquely identify the client
857
412
host: string; available for use by the checker command
858
413
interval: datetime.timedelta(); How often to start a new checker
859
414
last_approval_request: datetime.datetime(); (UTC) or None
860
415
last_checked_ok: datetime.datetime(); (UTC) or None
861
416
last_checker_status: integer between 0 and 255 reflecting exit
862
417
status of last checker. -1 reflects crashed
863
checker, -2 means no checker completed yet.
864
last_checker_signal: The signal which killed the last checker, if
865
last_checker_status is -1
418
checker, or None.
866
419
last_enabled: datetime.datetime(); (UTC) or None
867
420
name: string; from the config file, used in log messages and
868
421
D-Bus identifiers
869
422
secret: bytestring; sent verbatim (over TLS) to client
870
423
timeout: datetime.timedelta(); How long from last_checked_ok
871
424
until this client is disabled
872
extended_timeout: extra long timeout when secret has been sent
425
extended_timeout: extra long timeout when password has been sent
873
426
runtime_expansions: Allowed attributes for runtime expansion.
874
427
expires: datetime.datetime(); time (UTC) when a client will be
875
428
disabled, or None
876
server_settings: The server_settings dict from main()
877
429
"""
878
430
879
431
runtime_expansions = ("approval_delay", "approval_duration",
880
"created", "enabled", "expires", "key_id",
881
"fingerprint", "host", "interval",
882
"last_approval_request", "last_checked_ok",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
883
434
"last_enabled", "name", "timeout")
884
client_defaults = {
885
"timeout": "PT5M",
886
"extended_timeout": "PT15M",
887
"interval": "PT2M",
888
"checker": "fping -q -- %%(host)s",
889
"host": "",
890
"approval_delay": "PT0S",
891
"approval_duration": "PT1S",
892
"approved_by_default": "True",
893
"enabled": "True",
894
}
435
client_defaults = { "timeout": "5m",
436
"extended_timeout": "15m",
437
"interval": "2m",
438
"checker": "fping -q -- %%(host)s",
439
"host": "",
440
"approval_delay": "0s",
441
"approval_duration": "1s",
442
"approved_by_default": "True",
443
"enabled": "True",
444
}
445
446
def timeout_milliseconds(self):
447
"Return the 'timeout' attribute in milliseconds"
448
return timedelta_to_milliseconds(self.timeout)
449
450
def extended_timeout_milliseconds(self):
451
"Return the 'extended_timeout' attribute in milliseconds"
452
return timedelta_to_milliseconds(self.extended_timeout)
453
454
def interval_milliseconds(self):
455
"Return the 'interval' attribute in milliseconds"
456
return timedelta_to_milliseconds(self.interval)
457
458
def approval_delay_milliseconds(self):
459
return timedelta_to_milliseconds(self.approval_delay)
895
460
896
461
@staticmethod
897
462
def config_parser(config):
905
470
for client_name in config.sections():
906
471
section = dict(config.items(client_name))
907
472
client = settings[client_name] = {}
908
473
909
474
client["host"] = section["host"]
910
475
# Reformat values from string types to Python types
911
476
client["approved_by_default"] = config.getboolean(
912
477
client_name, "approved_by_default")
913
478
client["enabled"] = config.getboolean(client_name,
914
479
"enabled")
915
916
# Uppercase and remove spaces from key_id and fingerprint
917
# for later comparison purposes with return value from the
918
# key_id() and fingerprint() functions
919
client["key_id"] = (section.get("key_id", "").upper()
920
.replace(" ", ""))
480
921
481
client["fingerprint"] = (section["fingerprint"].upper()
922
482
.replace(" ", ""))
923
483
if "secret" in section:
924
client["secret"] = codecs.decode(section["secret"]
925
.encode("utf-8"),
926
"base64")
484
client["secret"] = section["secret"].decode("base64")
927
485
elif "secfile" in section:
928
486
with open(os.path.expanduser(os.path.expandvars
929
487
(section["secfile"])),
930
488
"rb") as secfile:
931
489
client["secret"] = secfile.read()
932
490
else:
933
raise TypeError("No secret or secfile for section {}"
934
.format(section))
491
raise TypeError("No secret or secfile for section %s"
492
% section)
935
493
client["timeout"] = string_to_delta(section["timeout"])
936
494
client["extended_timeout"] = string_to_delta(
937
495
section["extended_timeout"])
943
501
client["checker_command"] = section["checker"]
944
502
client["last_approval_request"] = None
945
503
client["last_checked_ok"] = None
946
client["last_checker_status"] = -2
947
504
client["last_checker_status"] = None
505
948
506
return settings
949
950
def __init__(self, settings, name=None, server_settings=None):
507
508
509
def __init__(self, settings, name = None):
510
"""Note: the 'checker' key in 'config' sets the
511
'checker_command' attribute and *not* the 'checker'
512
attribute."""
951
513
self.name = name
952
if server_settings is None:
953
server_settings = {}
954
self.server_settings = server_settings
955
514
# adding all client settings
956
for setting, value in settings.items():
515
for setting, value in settings.iteritems():
957
516
setattr(self, setting, value)
958
517
959
518
if self.enabled:
960
519
if not hasattr(self, "last_enabled"):
961
520
self.last_enabled = datetime.datetime.utcnow()
965
524
else:
966
525
self.last_enabled = None
967
526
self.expires = None
968
527
969
528
logger.debug("Creating client %r", self.name)
970
logger.debug(" Key ID: %s", self.key_id)
529
# Uppercase and remove spaces from fingerprint for later
530
# comparison purposes with return value from the fingerprint()
531
# function
971
532
logger.debug(" Fingerprint: %s", self.fingerprint)
972
533
self.created = settings.get("created",
973
534
datetime.datetime.utcnow())
980
541
self.current_checker_command = None
981
542
self.approved = None
982
543
self.approvals_pending = 0
983
self.changedstate = multiprocessing_manager.Condition(
984
multiprocessing_manager.Lock())
985
self.client_structure = [attr
986
for attr in self.__dict__.keys()
544
self.changedstate = (multiprocessing_manager
545
.Condition(multiprocessing_manager
546
.Lock()))
547
self.client_structure = [attr for attr in
548
self.__dict__.iterkeys()
987
549
if not attr.startswith("_")]
988
550
self.client_structure.append("client_structure")
989
990
for name, t in inspect.getmembers(
991
type(self), lambda obj: isinstance(obj, property)):
551
552
for name, t in inspect.getmembers(type(self),
553
lambda obj:
554
isinstance(obj,
555
property)):
992
556
if not name.startswith("_"):
993
557
self.client_structure.append(name)
994
558
995
559
# Send notice to process children that client state has changed
996
560
def send_changedstate(self):
997
561
with self.changedstate:
998
562
self.changedstate.notify_all()
999
563
1000
564
def enable(self):
1001
565
"""Start this client's checker and timeout hooks"""
1002
566
if getattr(self, "enabled", False):
1003
567
# Already enabled
1004
568
return
569
self.send_changedstate()
1005
570
self.expires = datetime.datetime.utcnow() + self.timeout
1006
571
self.enabled = True
1007
572
self.last_enabled = datetime.datetime.utcnow()
1008
573
self.init_checker()
1009
self.send_changedstate()
1010
574
1011
575
def disable(self, quiet=True):
1012
576
"""Disable this client."""
1013
577
if not getattr(self, "enabled", False):
1014
578
return False
1015
579
if not quiet:
580
self.send_changedstate()
581
if not quiet:
1016
582
logger.info("Disabling client %s", self.name)
1017
if getattr(self, "disable_initiator_tag", None) is not None:
1018
GLib.source_remove(self.disable_initiator_tag)
583
if getattr(self, "disable_initiator_tag", False):
584
gobject.source_remove(self.disable_initiator_tag)
1019
585
self.disable_initiator_tag = None
1020
586
self.expires = None
1021
if getattr(self, "checker_initiator_tag", None) is not None:
1022
GLib.source_remove(self.checker_initiator_tag)
587
if getattr(self, "checker_initiator_tag", False):
588
gobject.source_remove(self.checker_initiator_tag)
1023
589
self.checker_initiator_tag = None
1024
590
self.stop_checker()
1025
591
self.enabled = False
1026
if not quiet:
1027
self.send_changedstate()
1028
# Do not run this again if called by a GLib.timeout_add
592
# Do not run this again if called by a gobject.timeout_add
1029
593
return False
1030
594
1031
595
def __del__(self):
1032
596
self.disable()
1033
597
1034
598
def init_checker(self):
1035
599
# Schedule a new checker to be started an 'interval' from now,
1036
600
# and every interval from then on.
1037
if self.checker_initiator_tag is not None:
1038
GLib.source_remove(self.checker_initiator_tag)
1039
self.checker_initiator_tag = GLib.timeout_add(
1040
int(self.interval.total_seconds() * 1000),
1041
self.start_checker)
601
self.checker_initiator_tag = (gobject.timeout_add
602
(self.interval_milliseconds(),
603
self.start_checker))
1042
604
# Schedule a disable() when 'timeout' has passed
1043
if self.disable_initiator_tag is not None:
1044
GLib.source_remove(self.disable_initiator_tag)
1045
self.disable_initiator_tag = GLib.timeout_add(
1046
int(self.timeout.total_seconds() * 1000), self.disable)
605
self.disable_initiator_tag = (gobject.timeout_add
606
(self.timeout_milliseconds(),
607
self.disable))
1047
608
# Also start a new checker *right now*.
1048
609
self.start_checker()
1049
1050
def checker_callback(self, source, condition, connection,
1051
command):
610
611
def checker_callback(self, pid, condition, command):
1052
612
"""The checker has completed, so take appropriate actions."""
1053
# Read return code from connection (see call_pipe)
1054
returncode = connection.recv()
1055
connection.close()
1056
if self.checker is not None:
1057
self.checker.join()
1058
613
self.checker_callback_tag = None
1059
614
self.checker = None
1060
1061
if returncode >= 0:
1062
self.last_checker_status = returncode
1063
self.last_checker_signal = None
615
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
1064
617
if self.last_checker_status == 0:
1065
618
logger.info("Checker for %(name)s succeeded",
1066
619
vars(self))
1067
620
self.checked_ok()
1068
621
else:
1069
logger.info("Checker for %(name)s failed", vars(self))
622
logger.info("Checker for %(name)s failed",
623
vars(self))
1070
624
else:
1071
625
self.last_checker_status = -1
1072
self.last_checker_signal = -returncode
1073
626
logger.warning("Checker for %(name)s crashed?",
1074
627
vars(self))
1075
return False
1076
1077
def checked_ok(self):
1078
"""Assert that the client has been seen, alive and well."""
1079
self.last_checked_ok = datetime.datetime.utcnow()
1080
self.last_checker_status = 0
1081
self.last_checker_signal = None
1082
self.bump_timeout()
1083
1084
def bump_timeout(self, timeout=None):
1085
"""Bump up the timeout for this client."""
628
629
def checked_ok(self, timeout=None):
630
"""Bump up the timeout for this client.
631
632
This should only be called when the client has been seen,
633
alive and well.
634
"""
1086
635
if timeout is None:
1087
636
timeout = self.timeout
637
self.last_checked_ok = datetime.datetime.utcnow()
1088
638
if self.disable_initiator_tag is not None:
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = None
639
gobject.source_remove(self.disable_initiator_tag)
1091
640
if getattr(self, "enabled", False):
1092
self.disable_initiator_tag = GLib.timeout_add(
1093
int(timeout.total_seconds() * 1000), self.disable)
641
self.disable_initiator_tag = (gobject.timeout_add
642
(timedelta_to_milliseconds
643
(timeout), self.disable))
1094
644
self.expires = datetime.datetime.utcnow() + timeout
1095
645
1096
646
def need_approval(self):
1097
647
self.last_approval_request = datetime.datetime.utcnow()
1098
648
1099
649
def start_checker(self):
1100
650
"""Start a new checker subprocess if one is not running.
1101
651
1102
652
If a checker already exists, leave it running and do
1103
653
nothing."""
1104
654
# The reason for not killing a running checker is that if we
1105
# did that, and if a checker (for some reason) started running
1106
# slowly and taking more than 'interval' time, then the client
1107
# would inevitably timeout, since no checker would get a
1108
# chance to run to completion. If we instead leave running
655
# did that, then if a checker (for some reason) started
656
# running slowly and taking more than 'interval' time, the
657
# client would inevitably timeout, since no checker would get
658
# a chance to run to completion. If we instead leave running
1109
659
# checkers alone, the checker would have to take more time
1110
660
# than 'timeout' for the client to be disabled, which is as it
1111
661
# should be.
1112
1113
if self.checker is not None and not self.checker.is_alive():
1114
logger.warning("Checker was not alive; joining")
1115
self.checker.join()
1116
self.checker = None
662
663
# If a checker exists, make sure it is not a zombie
664
try:
665
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
666
except (AttributeError, OSError) as error:
667
if (isinstance(error, OSError)
668
and error.errno != errno.ECHILD):
669
raise error
670
else:
671
if pid:
672
logger.warning("Checker was a zombie")
673
gobject.source_remove(self.checker_callback_tag)
674
self.checker_callback(pid, status,
675
self.current_checker_command)
1117
676
# Start a new checker if needed
1118
677
if self.checker is None:
1119
# Escape attributes for the shell
1120
escaped_attrs = {
1121
attr: re.escape(str(getattr(self, attr)))
1122
for attr in self.runtime_expansions}
1123
678
try:
1124
command = self.checker_command % escaped_attrs
1125
except TypeError as error:
1126
logger.error('Could not format string "%s"',
1127
self.checker_command,
1128
exc_info=error)
1129
return True # Try again later
679
# In case checker_command has exactly one % operator
680
command = self.checker_command % self.host
681
except TypeError:
682
# Escape attributes for the shell
683
escaped_attrs = dict(
684
(attr,
685
re.escape(unicode(str(getattr(self, attr, "")),
686
errors=
687
'replace')))
688
for attr in
689
self.runtime_expansions)
690
691
try:
692
command = self.checker_command % escaped_attrs
693
except TypeError as error:
694
logger.error('Could not format string "%s":'
695
' %s', self.checker_command, error)
696
return True # Try again later
1130
697
self.current_checker_command = command
1131
logger.info("Starting checker %r for %s", command,
1132
self.name)
1133
# We don't need to redirect stdout and stderr, since
1134
# in normal mode, that is already done by daemon(),
1135
# and in debug mode we don't want to. (Stdin is
1136
# always replaced by /dev/null.)
1137
# The exception is when not debugging but nevertheless
1138
# running in the foreground; use the previously
1139
# created wnull.
1140
popen_args = {"close_fds": True,
1141
"shell": True,
1142
"cwd": "/"}
1143
if (not self.server_settings["debug"]
1144
and self.server_settings["foreground"]):
1145
popen_args.update({"stdout": wnull,
1146
"stderr": wnull})
1147
pipe = multiprocessing.Pipe(duplex=False)
1148
self.checker = multiprocessing.Process(
1149
target=call_pipe,
1150
args=(pipe[1], subprocess.call, command),
1151
kwargs=popen_args)
1152
self.checker.start()
1153
self.checker_callback_tag = GLib.io_add_watch(
1154
GLib.IOChannel.unix_new(pipe[0].fileno()),
1155
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1156
self.checker_callback, pipe[0], command)
1157
# Re-run this periodically if run by GLib.timeout_add
698
try:
699
logger.info("Starting checker %r for %s",
700
command, self.name)
701
# We don't need to redirect stdout and stderr, since
702
# in normal mode, that is already done by daemon(),
703
# and in debug mode we don't want to. (Stdin is
704
# always replaced by /dev/null.)
705
self.checker = subprocess.Popen(command,
706
close_fds=True,
707
shell=True, cwd="/")
708
self.checker_callback_tag = (gobject.child_watch_add
709
(self.checker.pid,
710
self.checker_callback,
711
data=command))
712
# The checker may have completed before the gobject
713
# watch was added. Check for this.
714
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
715
if pid:
716
gobject.source_remove(self.checker_callback_tag)
717
self.checker_callback(pid, status, command)
718
except OSError as error:
719
logger.error("Failed to start subprocess: %s",
720
error)
721
# Re-run this periodically if run by gobject.timeout_add
1158
722
return True
1159
723
1160
724
def stop_checker(self):
1161
725
"""Force the checker process, if any, to stop."""
1162
726
if self.checker_callback_tag:
1163
GLib.source_remove(self.checker_callback_tag)
727
gobject.source_remove(self.checker_callback_tag)
1164
728
self.checker_callback_tag = None
1165
729
if getattr(self, "checker", None) is None:
1166
730
return
1167
731
logger.debug("Stopping checker for %(name)s", vars(self))
1168
self.checker.terminate()
732
try:
733
os.kill(self.checker.pid, signal.SIGTERM)
734
#time.sleep(0.5)
735
#if self.checker.poll() is None:
736
# os.kill(self.checker.pid, signal.SIGKILL)
737
except OSError as error:
738
if error.errno != errno.ESRCH: # No such process
739
raise
1169
740
self.checker = None
1170
741
1171
742
1172
def dbus_service_property(dbus_interface,
1173
signature="v",
1174
access="readwrite",
1175
byte_arrays=False):
743
def dbus_service_property(dbus_interface, signature="v",
744
access="readwrite", byte_arrays=False):
1176
745
"""Decorators for marking methods of a DBusObjectWithProperties to
1177
746
become properties on the D-Bus.
1178
747
1179
748
The decorated method will be called with no arguments by "Get"
1180
749
and with one argument by "Set".
1181
750
1182
751
The parameters, where they are supported, are the same as
1183
752
dbus.service.method, except there is only "signature", since the
1184
753
type from Get() and the type sent to Set() is the same.
1187
756
# "Set" method, so we fail early here:
1188
757
if byte_arrays and signature != "ay":
1189
758
raise ValueError("Byte arrays not supported for non-'ay'"
1190
" signature {!r}".format(signature))
1191
759
" signature %r" % signature)
1192
760
def decorator(func):
1193
761
func._dbus_is_property = True
1194
762
func._dbus_interface = dbus_interface
1197
765
func._dbus_name = func.__name__
1198
766
if func._dbus_name.endswith("_dbus_property"):
1199
767
func._dbus_name = func._dbus_name[:-14]
1200
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1201
return func
1202
1203
return decorator
1204
1205
1206
def dbus_interface_annotations(dbus_interface):
1207
"""Decorator for marking functions returning interface annotations
1208
1209
Usage:
1210
1211
@dbus_interface_annotations("org.example.Interface")
1212
def _foo(self): # Function name does not matter
1213
return {"org.freedesktop.DBus.Deprecated": "true",
1214
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1215
"false"}
1216
"""
1217
1218
def decorator(func):
1219
func._dbus_is_interface = True
1220
func._dbus_interface = dbus_interface
1221
func._dbus_name = dbus_interface
1222
return func
1223
1224
return decorator
1225
1226
1227
def dbus_annotations(annotations):
1228
"""Decorator to annotate D-Bus methods, signals or properties
1229
Usage:
1230
1231
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1232
"org.freedesktop.DBus.Property."
1233
"EmitsChangedSignal": "false"})
1234
@dbus_service_property("org.example.Interface", signature="b",
1235
access="r")
1236
def Property_dbus_property(self):
1237
return dbus.Boolean(False)
1238
1239
See also the DBusObjectWithAnnotations class.
1240
"""
1241
1242
def decorator(func):
1243
func._dbus_annotations = annotations
1244
return func
1245
768
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
769
return func
1246
770
return decorator
1247
771
1248
772
1249
773
class DBusPropertyException(dbus.exceptions.DBusException):
1250
774
"""A base class for D-Bus property-related exceptions
1251
775
"""
1252
pass
776
def __unicode__(self):
777
return unicode(str(self))
1253
778
1254
779
1255
780
class DBusPropertyAccessException(DBusPropertyException):
1264
789
pass
1265
790
1266
791
1267
class DBusObjectWithAnnotations(dbus.service.Object):
1268
"""A D-Bus object with annotations.
1269
1270
Classes inheriting from this can use the dbus_annotations
1271
decorator to add annotations to methods or signals.
1272
"""
1273
1274
@staticmethod
1275
def _is_dbus_thing(thing):
1276
"""Returns a function testing if an attribute is a D-Bus thing
1277
1278
If called like _is_dbus_thing("method") it returns a function
1279
suitable for use as predicate to inspect.getmembers().
1280
"""
1281
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1282
False)
1283
1284
def _get_all_dbus_things(self, thing):
1285
"""Returns a generator of (name, attribute) pairs
1286
"""
1287
return ((getattr(athing.__get__(self), "_dbus_name", name),
1288
athing.__get__(self))
1289
for cls in self.__class__.__mro__
1290
for name, athing in
1291
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1292
1293
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1294
out_signature="s",
1295
path_keyword='object_path',
1296
connection_keyword='connection')
1297
def Introspect(self, object_path, connection):
1298
"""Overloading of standard D-Bus method.
1299
1300
Inserts annotation tags on methods and signals.
1301
"""
1302
xmlstring = dbus.service.Object.Introspect(self, object_path,
1303
connection)
1304
try:
1305
document = xml.dom.minidom.parseString(xmlstring)
1306
1307
for if_tag in document.getElementsByTagName("interface"):
1308
# Add annotation tags
1309
for typ in ("method", "signal"):
1310
for tag in if_tag.getElementsByTagName(typ):
1311
annots = dict()
1312
for name, prop in (self.
1313
_get_all_dbus_things(typ)):
1314
if (name == tag.getAttribute("name")
1315
and prop._dbus_interface
1316
== if_tag.getAttribute("name")):
1317
annots.update(getattr(
1318
prop, "_dbus_annotations", {}))
1319
for name, value in annots.items():
1320
ann_tag = document.createElement(
1321
"annotation")
1322
ann_tag.setAttribute("name", name)
1323
ann_tag.setAttribute("value", value)
1324
tag.appendChild(ann_tag)
1325
# Add interface annotation tags
1326
for annotation, value in dict(
1327
itertools.chain.from_iterable(
1328
annotations().items()
1329
for name, annotations
1330
in self._get_all_dbus_things("interface")
1331
if name == if_tag.getAttribute("name")
1332
)).items():
1333
ann_tag = document.createElement("annotation")
1334
ann_tag.setAttribute("name", annotation)
1335
ann_tag.setAttribute("value", value)
1336
if_tag.appendChild(ann_tag)
1337
# Fix argument name for the Introspect method itself
1338
if (if_tag.getAttribute("name")
1339
== dbus.INTROSPECTABLE_IFACE):
1340
for cn in if_tag.getElementsByTagName("method"):
1341
if cn.getAttribute("name") == "Introspect":
1342
for arg in cn.getElementsByTagName("arg"):
1343
if (arg.getAttribute("direction")
1344
== "out"):
1345
arg.setAttribute("name",
1346
"xml_data")
1347
xmlstring = document.toxml("utf-8")
1348
document.unlink()
1349
except (AttributeError, xml.dom.DOMException,
1350
xml.parsers.expat.ExpatError) as error:
1351
logger.error("Failed to override Introspection method",
1352
exc_info=error)
1353
return xmlstring
1354
1355
1356
class DBusObjectWithProperties(DBusObjectWithAnnotations):
792
class DBusObjectWithProperties(dbus.service.Object):
1357
793
"""A D-Bus object with properties.
1358
794
1359
795
Classes inheriting from this can use the dbus_service_property
1360
796
decorator to expose methods as D-Bus properties. It exposes the
1361
797
standard Get(), Set(), and GetAll() methods on the D-Bus.
1362
798
"""
1363
799
800
@staticmethod
801
def _is_dbus_property(obj):
802
return getattr(obj, "_dbus_is_property", False)
803
804
def _get_all_dbus_properties(self):
805
"""Returns a generator of (name, attribute) pairs
806
"""
807
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
808
for cls in self.__class__.__mro__
809
for name, prop in
810
inspect.getmembers(cls, self._is_dbus_property))
811
1364
812
def _get_dbus_property(self, interface_name, property_name):
1365
813
"""Returns a bound method if one exists which is a D-Bus
1366
814
property with the specified name and interface.
1367
815
"""
1368
for cls in self.__class__.__mro__:
1369
for name, value in inspect.getmembers(
1370
cls, self._is_dbus_thing("property")):
816
for cls in self.__class__.__mro__:
817
for name, value in (inspect.getmembers
818
(cls, self._is_dbus_property)):
1371
819
if (value._dbus_name == property_name
1372
820
and value._dbus_interface == interface_name):
1373
821
return value.__get__(self)
1374
822
1375
823
# No such property
1376
raise DBusPropertyNotFound("{}:{}.{}".format(
1377
self.dbus_object_path, interface_name, property_name))
1378
1379
@classmethod
1380
def _get_all_interface_names(cls):
1381
"""Get a sequence of all interfaces supported by an object"""
1382
return (name for name in set(getattr(getattr(x, attr),
1383
"_dbus_interface", None)
1384
for x in (inspect.getmro(cls))
1385
for attr in dir(x))
1386
if name is not None)
1387
1388
@dbus.service.method(dbus.PROPERTIES_IFACE,
1389
in_signature="ss",
824
raise DBusPropertyNotFound(self.dbus_object_path + ":"
825
+ interface_name + "."
826
+ property_name)
827
828
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1390
829
out_signature="v")
1391
830
def Get(self, interface_name, property_name):
1392
831
"""Standard D-Bus property Get() method, see D-Bus standard.
1398
837
if not hasattr(value, "variant_level"):
1399
838
return value
1400
839
return type(value)(value, variant_level=value.variant_level+1)
1401
840
1402
841
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1403
842
def Set(self, interface_name, property_name, value):
1404
843
"""Standard D-Bus property Set() method, see D-Bus standard.
1410
849
# The byte_arrays option is not supported yet on
1411
850
# signatures other than "ay".
1412
851
if prop._dbus_signature != "ay":
1413
raise ValueError("Byte arrays not supported for non-"
1414
"'ay' signature {!r}"
1415
.format(prop._dbus_signature))
852
raise ValueError
1416
853
value = dbus.ByteArray(b''.join(chr(byte)
1417
854
for byte in value))
1418
855
prop(value)
1419
1420
@dbus.service.method(dbus.PROPERTIES_IFACE,
1421
in_signature="s",
856
857
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1422
858
out_signature="a{sv}")
1423
859
def GetAll(self, interface_name):
1424
860
"""Standard D-Bus property GetAll() method, see D-Bus
1425
861
standard.
1426
862
1427
863
Note: Will not include properties with access="write".
1428
864
"""
1429
865
properties = {}
1430
for name, prop in self._get_all_dbus_things("property"):
866
for name, prop in self._get_all_dbus_properties():
1431
867
if (interface_name
1432
868
and interface_name != prop._dbus_interface):
1433
869
# Interface non-empty but did not match
1439
875
if not hasattr(value, "variant_level"):
1440
876
properties[name] = value
1441
877
continue
1442
properties[name] = type(value)(
1443
value, variant_level=value.variant_level + 1)
878
properties[name] = type(value)(value, variant_level=
879
value.variant_level+1)
1444
880
return dbus.Dictionary(properties, signature="sv")
1445
1446
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1447
def PropertiesChanged(self, interface_name, changed_properties,
1448
invalidated_properties):
1449
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1450
standard.
1451
"""
1452
pass
1453
881
1454
882
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1455
883
out_signature="s",
1456
884
path_keyword='object_path',
1457
885
connection_keyword='connection')
1458
886
def Introspect(self, object_path, connection):
1459
"""Overloading of standard D-Bus method.
1460
1461
Inserts property tags and interface annotation tags.
887
"""Standard D-Bus method, overloaded to insert property tags.
1462
888
"""
1463
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1464
object_path,
1465
connection)
889
xmlstring = dbus.service.Object.Introspect(self, object_path,
890
connection)
1466
891
try:
1467
892
document = xml.dom.minidom.parseString(xmlstring)
1468
1469
893
def make_tag(document, name, prop):
1470
894
e = document.createElement("property")
1471
895
e.setAttribute("name", name)
1472
896
e.setAttribute("type", prop._dbus_signature)
1473
897
e.setAttribute("access", prop._dbus_access)
1474
898
return e
1475
1476
899
for if_tag in document.getElementsByTagName("interface"):
1477
# Add property tags
1478
900
for tag in (make_tag(document, name, prop)
1479
901
for name, prop
1480
in self._get_all_dbus_things("property")
902
in self._get_all_dbus_properties()
1481
903
if prop._dbus_interface
1482
904
== if_tag.getAttribute("name")):
1483
905
if_tag.appendChild(tag)
1484
# Add annotation tags for properties
1485
for tag in if_tag.getElementsByTagName("property"):
1486
annots = dict()
1487
for name, prop in self._get_all_dbus_things(
1488
"property"):
1489
if (name == tag.getAttribute("name")
1490
and prop._dbus_interface
1491
== if_tag.getAttribute("name")):
1492
annots.update(getattr(
1493
prop, "_dbus_annotations", {}))
1494
for name, value in annots.items():
1495
ann_tag = document.createElement(
1496
"annotation")
1497
ann_tag.setAttribute("name", name)
1498
ann_tag.setAttribute("value", value)
1499
tag.appendChild(ann_tag)
1500
906
# Add the names to the return values for the
1501
907
# "org.freedesktop.DBus.Properties" methods
1502
908
if (if_tag.getAttribute("name")
1517
923
except (AttributeError, xml.dom.DOMException,
1518
924
xml.parsers.expat.ExpatError) as error:
1519
925
logger.error("Failed to override Introspection method",
1520
exc_info=error)
1521
return xmlstring
1522
1523
1524
try:
1525
dbus.OBJECT_MANAGER_IFACE
1526
except AttributeError:
1527
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1528
1529
1530
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1531
"""A D-Bus object with an ObjectManager.
1532
1533
Classes inheriting from this exposes the standard
1534
GetManagedObjects call and the InterfacesAdded and
1535
InterfacesRemoved signals on the standard
1536
"org.freedesktop.DBus.ObjectManager" interface.
1537
1538
Note: No signals are sent automatically; they must be sent
1539
manually.
1540
"""
1541
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1542
out_signature="a{oa{sa{sv}}}")
1543
def GetManagedObjects(self):
1544
"""This function must be overridden"""
1545
raise NotImplementedError()
1546
1547
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1548
signature="oa{sa{sv}}")
1549
def InterfacesAdded(self, object_path, interfaces_and_properties):
1550
pass
1551
1552
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1553
def InterfacesRemoved(self, object_path, interfaces):
1554
pass
1555
1556
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1557
out_signature="s",
1558
path_keyword='object_path',
1559
connection_keyword='connection')
1560
def Introspect(self, object_path, connection):
1561
"""Overloading of standard D-Bus method.
1562
1563
Override return argument name of GetManagedObjects to be
1564
"objpath_interfaces_and_properties"
1565
"""
1566
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1567
object_path,
1568
connection)
1569
try:
1570
document = xml.dom.minidom.parseString(xmlstring)
1571
1572
for if_tag in document.getElementsByTagName("interface"):
1573
# Fix argument name for the GetManagedObjects method
1574
if (if_tag.getAttribute("name")
1575
== dbus.OBJECT_MANAGER_IFACE):
1576
for cn in if_tag.getElementsByTagName("method"):
1577
if (cn.getAttribute("name")
1578
== "GetManagedObjects"):
1579
for arg in cn.getElementsByTagName("arg"):
1580
if (arg.getAttribute("direction")
1581
== "out"):
1582
arg.setAttribute(
1583
"name",
1584
"objpath_interfaces"
1585
"_and_properties")
1586
xmlstring = document.toxml("utf-8")
1587
document.unlink()
1588
except (AttributeError, xml.dom.DOMException,
1589
xml.parsers.expat.ExpatError) as error:
1590
logger.error("Failed to override Introspection method",
1591
exc_info=error)
1592
return xmlstring
1593
1594
1595
def datetime_to_dbus(dt, variant_level=0):
926
error)
927
return xmlstring
928
929
930
def datetime_to_dbus (dt, variant_level=0):
1596
931
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1597
932
if dt is None:
1598
return dbus.String("", variant_level=variant_level)
1599
return dbus.String(dt.isoformat(), variant_level=variant_level)
1600
1601
1602
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1603
"""A class decorator; applied to a subclass of
1604
dbus.service.Object, it will add alternate D-Bus attributes with
1605
interface names according to the "alt_interface_names" mapping.
1606
Usage:
1607
1608
@alternate_dbus_interfaces({"org.example.Interface":
1609
"net.example.AlternateInterface"})
1610
class SampleDBusObject(dbus.service.Object):
1611
@dbus.service.method("org.example.Interface")
1612
def SampleDBusMethod():
1613
pass
1614
1615
The above "SampleDBusMethod" on "SampleDBusObject" will be
1616
reachable via two interfaces: "org.example.Interface" and
1617
"net.example.AlternateInterface", the latter of which will have
1618
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1619
"true", unless "deprecate" is passed with a False value.
1620
1621
This works for methods and signals, and also for D-Bus properties
1622
(from DBusObjectWithProperties) and interfaces (from the
1623
dbus_interface_annotations decorator).
933
return dbus.String("", variant_level = variant_level)
934
return dbus.String(dt.isoformat(),
935
variant_level=variant_level)
936
937
938
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
939
.__metaclass__):
940
"""Applied to an empty subclass of a D-Bus object, this metaclass
941
will add additional D-Bus attributes matching a certain pattern.
1624
942
"""
1625
1626
def wrapper(cls):
1627
for orig_interface_name, alt_interface_name in (
1628
alt_interface_names.items()):
1629
attr = {}
1630
interface_names = set()
1631
# Go though all attributes of the class
1632
for attrname, attribute in inspect.getmembers(cls):
943
def __new__(mcs, name, bases, attr):
944
# Go through all the base classes which could have D-Bus
945
# methods, signals, or properties in them
946
for base in (b for b in bases
947
if issubclass(b, dbus.service.Object)):
948
# Go though all attributes of the base class
949
for attrname, attribute in inspect.getmembers(base):
1633
950
# Ignore non-D-Bus attributes, and D-Bus attributes
1634
951
# with the wrong interface name
1635
952
if (not hasattr(attribute, "_dbus_interface")
1636
or not attribute._dbus_interface.startswith(
1637
orig_interface_name)):
953
or not attribute._dbus_interface
954
.startswith("se.recompile.Mandos")):
1638
955
continue
1639
956
# Create an alternate D-Bus interface name based on
1640
957
# the current name
1641
alt_interface = attribute._dbus_interface.replace(
1642
orig_interface_name, alt_interface_name)
1643
interface_names.add(alt_interface)
958
alt_interface = (attribute._dbus_interface
959
.replace("se.recompile.Mandos",
960
"se.bsnet.fukt.Mandos"))
1644
961
# Is this a D-Bus signal?
1645
962
if getattr(attribute, "_dbus_is_signal", False):
1646
# Extract the original non-method undecorated
1647
# function by black magic
1648
if sys.version_info.major == 2:
1649
nonmethod_func = (dict(
963
# Extract the original non-method function by
964
# black magic
965
nonmethod_func = (dict(
1650
966
zip(attribute.func_code.co_freevars,
1651
attribute.__closure__))
1652
["func"].cell_contents)
1653
else:
1654
nonmethod_func = (dict(
1655
zip(attribute.__code__.co_freevars,
1656
attribute.__closure__))
1657
["func"].cell_contents)
967
attribute.__closure__))["func"]
968
.cell_contents)
1658
969
# Create a new, but exactly alike, function
1659
970
# object, and decorate it to be a new D-Bus signal
1660
971
# with the alternate D-Bus interface name
1661
new_function = copy_function(nonmethod_func)
1662
new_function = (dbus.service.signal(
1663
alt_interface,
1664
attribute._dbus_signature)(new_function))
1665
# Copy annotations, if any
1666
try:
1667
new_function._dbus_annotations = dict(
1668
attribute._dbus_annotations)
1669
except AttributeError:
1670
pass
1671
972
new_function = (dbus.service.signal
973
(alt_interface,
974
attribute._dbus_signature)
975
(types.FunctionType(
976
nonmethod_func.func_code,
977
nonmethod_func.func_globals,
978
nonmethod_func.func_name,
979
nonmethod_func.func_defaults,
980
nonmethod_func.func_closure)))
1672
981
# Define a creator of a function to call both the
1673
# original and alternate functions, so both the
1674
# original and alternate signals gets sent when
1675
# the function is called
982
# old and new functions, so both the old and new
983
# signals gets sent when the function is called
1676
984
def fixscope(func1, func2):
1677
985
"""This function is a scope container to pass
1678
986
func1 and func2 to the "call_both" function
1679
987
outside of its arguments"""
1680
1681
@functools.wraps(func2)
1682
988
def call_both(*args, **kwargs):
1683
989
"""This function will emit two D-Bus
1684
990
signals by calling func1 and func2"""
1685
991
func1(*args, **kwargs)
1686
992
func2(*args, **kwargs)
1687
# Make wrapper function look like a D-Bus
1688
# signal
1689
for name, attr in inspect.getmembers(func2):
1690
if name.startswith("_dbus_"):
1691
setattr(call_both, name, attr)
1692
1693
993
return call_both
1694
994
# Create the "call_both" function and add it to
1695
995
# the class
1696
attr[attrname] = fixscope(attribute, new_function)
996
attr[attrname] = fixscope(attribute,
997
new_function)
1697
998
# Is this a D-Bus method?
1698
999
elif getattr(attribute, "_dbus_is_method", False):
1699
1000
# Create a new, but exactly alike, function
1700
1001
# object. Decorate it to be a new D-Bus method
1701
1002
# with the alternate D-Bus interface name. Add it
1702
1003
# to the class.
1703
attr[attrname] = (
1704
dbus.service.method(
1705
alt_interface,
1706
attribute._dbus_in_signature,
1707
attribute._dbus_out_signature)
1708
(copy_function(attribute)))
1709
# Copy annotations, if any
1710
try:
1711
attr[attrname]._dbus_annotations = dict(
1712
attribute._dbus_annotations)
1713
except AttributeError:
1714
pass
1004
attr[attrname] = (dbus.service.method
1005
(alt_interface,
1006
attribute._dbus_in_signature,
1007
attribute._dbus_out_signature)
1008
(types.FunctionType
1009
(attribute.func_code,
1010
attribute.func_globals,
1011
attribute.func_name,
1012
attribute.func_defaults,
1013
attribute.func_closure)))
1715
1014
# Is this a D-Bus property?
1716
1015
elif getattr(attribute, "_dbus_is_property", False):
1717
1016
# Create a new, but exactly alike, function
1718
1017
# object, and decorate it to be a new D-Bus
1719
1018
# property with the alternate D-Bus interface
1720
1019
# name. Add it to the class.
1721
attr[attrname] = (dbus_service_property(
1722
alt_interface, attribute._dbus_signature,
1723
attribute._dbus_access,
1724
attribute._dbus_get_args_options
1725
["byte_arrays"])
1726
(copy_function(attribute)))
1727
# Copy annotations, if any
1728
try:
1729
attr[attrname]._dbus_annotations = dict(
1730
attribute._dbus_annotations)
1731
except AttributeError:
1732
pass
1733
# Is this a D-Bus interface?
1734
elif getattr(attribute, "_dbus_is_interface", False):
1735
# Create a new, but exactly alike, function
1736
# object. Decorate it to be a new D-Bus interface
1737
# with the alternate D-Bus interface name. Add it
1738
# to the class.
1739
attr[attrname] = (
1740
dbus_interface_annotations(alt_interface)
1741
(copy_function(attribute)))
1742
if deprecate:
1743
# Deprecate all alternate interfaces
1744
iname = "_AlternateDBusNames_interface_annotation{}"
1745
for interface_name in interface_names:
1746
1747
@dbus_interface_annotations(interface_name)
1748
def func(self):
1749
return {"org.freedesktop.DBus.Deprecated":
1750
"true"}
1751
# Find an unused name
1752
for aname in (iname.format(i)
1753
for i in itertools.count()):
1754
if aname not in attr:
1755
attr[aname] = func
1756
break
1757
if interface_names:
1758
# Replace the class with a new subclass of it with
1759
# methods, signals, etc. as created above.
1760
if sys.version_info.major == 2:
1761
cls = type(b"{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
else:
1764
cls = type("{}Alternate".format(cls.__name__),
1765
(cls, ), attr)
1766
return cls
1767
1768
return wrapper
1769
1770
1771
@alternate_dbus_interfaces({"se.recompile.Mandos":
1772
"se.bsnet.fukt.Mandos"})
1020
attr[attrname] = (dbus_service_property
1021
(alt_interface,
1022
attribute._dbus_signature,
1023
attribute._dbus_access,
1024
attribute
1025
._dbus_get_args_options
1026
["byte_arrays"])
1027
(types.FunctionType
1028
(attribute.func_code,
1029
attribute.func_globals,
1030
attribute.func_name,
1031
attribute.func_defaults,
1032
attribute.func_closure)))
1033
return type.__new__(mcs, name, bases, attr)
1034
1035
1773
1036
class ClientDBus(Client, DBusObjectWithProperties):
1774
1037
"""A Client class using D-Bus
1775
1038
1776
1039
Attributes:
1777
1040
dbus_object_path: dbus.ObjectPath
1778
1041
bus: dbus.SystemBus()
1779
1042
"""
1780
1043
1781
1044
runtime_expansions = (Client.runtime_expansions
1782
+ ("dbus_object_path", ))
1783
1784
_interface = "se.recompile.Mandos.Client"
1785
1045
+ ("dbus_object_path",))
1046
1786
1047
# dbus.service.Object doesn't use super(), so we can't either.
1787
1788
def __init__(self, bus=None, *args, **kwargs):
1048
1049
def __init__(self, bus = None, *args, **kwargs):
1789
1050
self.bus = bus
1790
1051
Client.__init__(self, *args, **kwargs)
1052
self._approvals_pending = 0
1053
1054
self._approvals_pending = 0
1791
1055
# Only now, when this client is initialized, can it show up on
1792
1056
# the D-Bus
1793
client_object_name = str(self.name).translate(
1057
client_object_name = unicode(self.name).translate(
1794
1058
{ord("."): ord("_"),
1795
1059
ord("-"): ord("_")})
1796
self.dbus_object_path = dbus.ObjectPath(
1797
"/clients/" + client_object_name)
1060
self.dbus_object_path = (dbus.ObjectPath
1061
("/clients/" + client_object_name))
1798
1062
DBusObjectWithProperties.__init__(self, self.bus,
1799
1063
self.dbus_object_path)
1800
1801
def notifychangeproperty(transform_func, dbus_name,
1802
type_func=lambda x: x,
1803
variant_level=1,
1804
invalidate_only=False,
1805
_interface=_interface):
1064
1065
def notifychangeproperty(transform_func,
1066
dbus_name, type_func=lambda x: x,
1067
variant_level=1):
1806
1068
""" Modify a variable so that it's a property which announces
1807
1069
its changes to DBus.
1808
1070
1809
1071
transform_fun: Function that takes a value and a variant_level
1810
1072
and transforms it to a D-Bus type.
1811
1073
dbus_name: D-Bus name of the variable
1813
1075
to the D-Bus. Default: no transform
1814
1076
variant_level: D-Bus variant level. Default: 1
1815
1077
"""
1816
attrname = "_{}".format(dbus_name)
1817
1078
attrname = "_{0}".format(dbus_name)
1818
1079
def setter(self, value):
1819
1080
if hasattr(self, "dbus_object_path"):
1820
1081
if (not hasattr(self, attrname) or
1821
1082
type_func(getattr(self, attrname, None))
1822
1083
!= type_func(value)):
1823
if invalidate_only:
1824
self.PropertiesChanged(
1825
_interface, dbus.Dictionary(),
1826
dbus.Array((dbus_name, )))
1827
else:
1828
dbus_value = transform_func(
1829
type_func(value),
1830
variant_level=variant_level)
1831
self.PropertyChanged(dbus.String(dbus_name),
1832
dbus_value)
1833
self.PropertiesChanged(
1834
_interface,
1835
dbus.Dictionary({dbus.String(dbus_name):
1836
dbus_value}),
1837
dbus.Array())
1084
dbus_value = transform_func(type_func(value),
1085
variant_level
1086
=variant_level)
1087
self.PropertyChanged(dbus.String(dbus_name),
1088
dbus_value)
1838
1089
setattr(self, attrname, value)
1839
1090
1840
1091
return property(lambda self: getattr(self, attrname), setter)
1841
1092
1093
1842
1094
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1843
1095
approvals_pending = notifychangeproperty(dbus.Boolean,
1844
1096
"ApprovalPending",
1845
type_func=bool)
1097
type_func = bool)
1846
1098
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1847
1099
last_enabled = notifychangeproperty(datetime_to_dbus,
1848
1100
"LastEnabled")
1849
checker = notifychangeproperty(
1850
dbus.Boolean, "CheckerRunning",
1851
type_func=lambda checker: checker is not None)
1101
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1102
type_func = lambda checker:
1103
checker is not None)
1852
1104
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1853
1105
"LastCheckedOK")
1854
last_checker_status = notifychangeproperty(dbus.Int16,
1855
"LastCheckerStatus")
1856
1106
last_approval_request = notifychangeproperty(
1857
1107
datetime_to_dbus, "LastApprovalRequest")
1858
1108
approved_by_default = notifychangeproperty(dbus.Boolean,
1859
1109
"ApprovedByDefault")
1860
approval_delay = notifychangeproperty(
1861
dbus.UInt64, "ApprovalDelay",
1862
type_func=lambda td: td.total_seconds() * 1000)
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1111
"ApprovalDelay",
1112
type_func =
1113
timedelta_to_milliseconds)
1863
1114
approval_duration = notifychangeproperty(
1864
1115
dbus.UInt64, "ApprovalDuration",
1865
type_func=lambda td: td.total_seconds() * 1000)
1116
type_func = timedelta_to_milliseconds)
1866
1117
host = notifychangeproperty(dbus.String, "Host")
1867
timeout = notifychangeproperty(
1868
dbus.UInt64, "Timeout",
1869
type_func=lambda td: td.total_seconds() * 1000)
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
type_func =
1120
timedelta_to_milliseconds)
1870
1121
extended_timeout = notifychangeproperty(
1871
1122
dbus.UInt64, "ExtendedTimeout",
1872
type_func=lambda td: td.total_seconds() * 1000)
1873
interval = notifychangeproperty(
1874
dbus.UInt64, "Interval",
1875
type_func=lambda td: td.total_seconds() * 1000)
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1125
"Interval",
1126
type_func =
1127
timedelta_to_milliseconds)
1876
1128
checker_command = notifychangeproperty(dbus.String, "Checker")
1877
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1878
invalidate_only=True)
1879
1129
1880
1130
del notifychangeproperty
1881
1131
1882
1132
def __del__(self, *args, **kwargs):
1883
1133
try:
1884
1134
self.remove_from_connection()
1887
1137
if hasattr(DBusObjectWithProperties, "__del__"):
1888
1138
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1889
1139
Client.__del__(self, *args, **kwargs)
1890
1891
def checker_callback(self, source, condition,
1892
connection, command, *args, **kwargs):
1893
ret = Client.checker_callback(self, source, condition,
1894
connection, command, *args,
1895
**kwargs)
1896
exitstatus = self.last_checker_status
1897
if exitstatus >= 0:
1140
1141
def checker_callback(self, pid, condition, command,
1142
*args, **kwargs):
1143
self.checker_callback_tag = None
1144
self.checker = None
1145
if os.WIFEXITED(condition):
1146
exitstatus = os.WEXITSTATUS(condition)
1898
1147
# Emit D-Bus signal
1899
1148
self.CheckerCompleted(dbus.Int16(exitstatus),
1900
# This is specific to GNU libC
1901
dbus.Int64(exitstatus << 8),
1149
dbus.Int64(condition),
1902
1150
dbus.String(command))
1903
1151
else:
1904
1152
# Emit D-Bus signal
1905
1153
self.CheckerCompleted(dbus.Int16(-1),
1906
dbus.Int64(
1907
# This is specific to GNU libC
1908
(exitstatus << 8)
1909
| self.last_checker_signal),
1154
dbus.Int64(condition),
1910
1155
dbus.String(command))
1911
return ret
1912
1156
1157
return Client.checker_callback(self, pid, condition, command,
1158
*args, **kwargs)
1159
1913
1160
def start_checker(self, *args, **kwargs):
1914
old_checker_pid = getattr(self.checker, "pid", None)
1161
old_checker = self.checker
1162
if self.checker is not None:
1163
old_checker_pid = self.checker.pid
1164
else:
1165
old_checker_pid = None
1915
1166
r = Client.start_checker(self, *args, **kwargs)
1916
1167
# Only if new checker process was started
1917
1168
if (self.checker is not None
1919
1170
# Emit D-Bus signal
1920
1171
self.CheckerStarted(self.current_checker_command)
1921
1172
return r
1922
1173
1923
1174
def _reset_approved(self):
1924
1175
self.approved = None
1925
1176
return False
1926
1177
1927
1178
def approve(self, value=True):
1179
self.send_changedstate()
1928
1180
self.approved = value
1929
GLib.timeout_add(int(self.approval_duration.total_seconds()
1930
* 1000), self._reset_approved)
1931
self.send_changedstate()
1932
1933
# D-Bus methods, signals & properties
1934
1935
# Interfaces
1936
1937
# Signals
1938
1181
gobject.timeout_add(timedelta_to_milliseconds
1182
(self.approval_duration),
1183
self._reset_approved)
1184
1185
1186
## D-Bus methods, signals & properties
1187
_interface = "se.recompile.Mandos.Client"
1188
1189
## Signals
1190
1939
1191
# CheckerCompleted - signal
1940
1192
@dbus.service.signal(_interface, signature="nxs")
1941
1193
def CheckerCompleted(self, exitcode, waitstatus, command):
1942
1194
"D-Bus signal"
1943
1195
pass
1944
1196
1945
1197
# CheckerStarted - signal
1946
1198
@dbus.service.signal(_interface, signature="s")
1947
1199
def CheckerStarted(self, command):
1948
1200
"D-Bus signal"
1949
1201
pass
1950
1202
1951
1203
# PropertyChanged - signal
1952
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1953
1204
@dbus.service.signal(_interface, signature="sv")
1954
1205
def PropertyChanged(self, property, value):
1955
1206
"D-Bus signal"
1956
1207
pass
1957
1208
1958
1209
# GotSecret - signal
1959
1210
@dbus.service.signal(_interface)
1960
1211
def GotSecret(self):
1963
1214
server to mandos-client
1964
1215
"""
1965
1216
pass
1966
1217
1967
1218
# Rejected - signal
1968
1219
@dbus.service.signal(_interface, signature="s")
1969
1220
def Rejected(self, reason):
1970
1221
"D-Bus signal"
1971
1222
pass
1972
1223
1973
1224
# NeedApproval - signal
1974
1225
@dbus.service.signal(_interface, signature="tb")
1975
1226
def NeedApproval(self, timeout, default):
1976
1227
"D-Bus signal"
1977
1228
return self.need_approval()
1978
1979
# Methods
1980
1229
1230
# NeRwequest - signal
1231
@dbus.service.signal(_interface, signature="s")
1232
def NewRequest(self, ip):
1233
"""D-Bus signal
1234
Is sent after a client request a password.
1235
"""
1236
pass
1237
1238
## Methods
1239
1981
1240
# Approve - method
1982
1241
@dbus.service.method(_interface, in_signature="b")
1983
1242
def Approve(self, value):
1984
1243
self.approve(value)
1985
1244
1986
1245
# CheckedOK - method
1987
1246
@dbus.service.method(_interface)
1988
1247
def CheckedOK(self):
1989
1248
self.checked_ok()
1990
1249
1991
1250
# Enable - method
1992
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1993
1251
@dbus.service.method(_interface)
1994
1252
def Enable(self):
1995
1253
"D-Bus method"
1996
1254
self.enable()
1997
1255
1998
1256
# StartChecker - method
1999
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2000
1257
@dbus.service.method(_interface)
2001
1258
def StartChecker(self):
2002
1259
"D-Bus method"
2003
1260
self.start_checker()
2004
1261
2005
1262
# Disable - method
2006
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2007
1263
@dbus.service.method(_interface)
2008
1264
def Disable(self):
2009
1265
"D-Bus method"
2010
1266
self.disable()
2011
1267
2012
1268
# StopChecker - method
2013
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2014
1269
@dbus.service.method(_interface)
2015
1270
def StopChecker(self):
2016
1271
self.stop_checker()
2017
2018
# Properties
2019
1272
1273
## Properties
1274
2020
1275
# ApprovalPending - property
2021
1276
@dbus_service_property(_interface, signature="b", access="read")
2022
1277
def ApprovalPending_dbus_property(self):
2023
1278
return dbus.Boolean(bool(self.approvals_pending))
2024
1279
2025
1280
# ApprovedByDefault - property
2026
@dbus_service_property(_interface,
2027
signature="b",
1281
@dbus_service_property(_interface, signature="b",
2028
1282
access="readwrite")
2029
1283
def ApprovedByDefault_dbus_property(self, value=None):
2030
1284
if value is None: # get
2031
1285
return dbus.Boolean(self.approved_by_default)
2032
1286
self.approved_by_default = bool(value)
2033
1287
2034
1288
# ApprovalDelay - property
2035
@dbus_service_property(_interface,
2036
signature="t",
1289
@dbus_service_property(_interface, signature="t",
2037
1290
access="readwrite")
2038
1291
def ApprovalDelay_dbus_property(self, value=None):
2039
1292
if value is None: # get
2040
return dbus.UInt64(self.approval_delay.total_seconds()
2041
* 1000)
1293
return dbus.UInt64(self.approval_delay_milliseconds())
2042
1294
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2043
1295
2044
1296
# ApprovalDuration - property
2045
@dbus_service_property(_interface,
2046
signature="t",
1297
@dbus_service_property(_interface, signature="t",
2047
1298
access="readwrite")
2048
1299
def ApprovalDuration_dbus_property(self, value=None):
2049
1300
if value is None: # get
2050
return dbus.UInt64(self.approval_duration.total_seconds()
2051
* 1000)
1301
return dbus.UInt64(timedelta_to_milliseconds(
1302
self.approval_duration))
2052
1303
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2053
1304
2054
1305
# Name - property
2055
@dbus_annotations(
2056
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2057
1306
@dbus_service_property(_interface, signature="s", access="read")
2058
1307
def Name_dbus_property(self):
2059
1308
return dbus.String(self.name)
2060
2061
# KeyID - property
2062
@dbus_annotations(
2063
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2064
@dbus_service_property(_interface, signature="s", access="read")
2065
def KeyID_dbus_property(self):
2066
return dbus.String(self.key_id)
2067
1309
2068
1310
# Fingerprint - property
2069
@dbus_annotations(
2070
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2071
1311
@dbus_service_property(_interface, signature="s", access="read")
2072
1312
def Fingerprint_dbus_property(self):
2073
1313
return dbus.String(self.fingerprint)
2074
1314
2075
1315
# Host - property
2076
@dbus_service_property(_interface,
2077
signature="s",
1316
@dbus_service_property(_interface, signature="s",
2078
1317
access="readwrite")
2079
1318
def Host_dbus_property(self, value=None):
2080
1319
if value is None: # get
2081
1320
return dbus.String(self.host)
2082
self.host = str(value)
2083
1321
self.host = unicode(value)
1322
2084
1323
# Created - property
2085
@dbus_annotations(
2086
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2087
1324
@dbus_service_property(_interface, signature="s", access="read")
2088
1325
def Created_dbus_property(self):
2089
1326
return datetime_to_dbus(self.created)
2090
1327
2091
1328
# LastEnabled - property
2092
1329
@dbus_service_property(_interface, signature="s", access="read")
2093
1330
def LastEnabled_dbus_property(self):
2094
1331
return datetime_to_dbus(self.last_enabled)
2095
1332
2096
1333
# Enabled - property
2097
@dbus_service_property(_interface,
2098
signature="b",
1334
@dbus_service_property(_interface, signature="b",
2099
1335
access="readwrite")
2100
1336
def Enabled_dbus_property(self, value=None):
2101
1337
if value is None: # get
2104
1340
self.enable()
2105
1341
else:
2106
1342
self.disable()
2107
1343
2108
1344
# LastCheckedOK - property
2109
@dbus_service_property(_interface,
2110
signature="s",
1345
@dbus_service_property(_interface, signature="s",
2111
1346
access="readwrite")
2112
1347
def LastCheckedOK_dbus_property(self, value=None):
2113
1348
if value is not None:
2114
1349
self.checked_ok()
2115
1350
return
2116
1351
return datetime_to_dbus(self.last_checked_ok)
2117
2118
# LastCheckerStatus - property
2119
@dbus_service_property(_interface, signature="n", access="read")
2120
def LastCheckerStatus_dbus_property(self):
2121
return dbus.Int16(self.last_checker_status)
2122
1352
2123
1353
# Expires - property
2124
1354
@dbus_service_property(_interface, signature="s", access="read")
2125
1355
def Expires_dbus_property(self):
2126
1356
return datetime_to_dbus(self.expires)
2127
1357
2128
1358
# LastApprovalRequest - property
2129
1359
@dbus_service_property(_interface, signature="s", access="read")
2130
1360
def LastApprovalRequest_dbus_property(self):
2131
1361
return datetime_to_dbus(self.last_approval_request)
2132
1362
2133
1363
# Timeout - property
2134
@dbus_service_property(_interface,
2135
signature="t",
1364
@dbus_service_property(_interface, signature="t",
2136
1365
access="readwrite")
2137
1366
def Timeout_dbus_property(self, value=None):
2138
1367
if value is None: # get
2139
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2140
old_timeout = self.timeout
1368
return dbus.UInt64(self.timeout_milliseconds())
2141
1369
self.timeout = datetime.timedelta(0, 0, 0, value)
2142
# Reschedule disabling
1370
# Reschedule timeout
2143
1371
if self.enabled:
2144
1372
now = datetime.datetime.utcnow()
2145
self.expires += self.timeout - old_timeout
2146
if self.expires <= now:
1373
time_to_die = timedelta_to_milliseconds(
1374
(self.last_checked_ok + self.timeout) - now)
1375
if time_to_die <= 0:
2147
1376
# The timeout has passed
2148
1377
self.disable()
2149
1378
else:
1379
self.expires = (now +
1380
datetime.timedelta(milliseconds =
1381
time_to_die))
2150
1382
if (getattr(self, "disable_initiator_tag", None)
2151
1383
is None):
2152
1384
return
2153
GLib.source_remove(self.disable_initiator_tag)
2154
self.disable_initiator_tag = GLib.timeout_add(
2155
int((self.expires - now).total_seconds() * 1000),
2156
self.disable)
2157
1385
gobject.source_remove(self.disable_initiator_tag)
1386
self.disable_initiator_tag = (gobject.timeout_add
1387
(time_to_die,
1388
self.disable))
1389
2158
1390
# ExtendedTimeout - property
2159
@dbus_service_property(_interface,
2160
signature="t",
1391
@dbus_service_property(_interface, signature="t",
2161
1392
access="readwrite")
2162
1393
def ExtendedTimeout_dbus_property(self, value=None):
2163
1394
if value is None: # get
2164
return dbus.UInt64(self.extended_timeout.total_seconds()
2165
* 1000)
1395
return dbus.UInt64(self.extended_timeout_milliseconds())
2166
1396
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2167
1397
2168
1398
# Interval - property
2169
@dbus_service_property(_interface,
2170
signature="t",
1399
@dbus_service_property(_interface, signature="t",
2171
1400
access="readwrite")
2172
1401
def Interval_dbus_property(self, value=None):
2173
1402
if value is None: # get
2174
return dbus.UInt64(self.interval.total_seconds() * 1000)
1403
return dbus.UInt64(self.interval_milliseconds())
2175
1404
self.interval = datetime.timedelta(0, 0, 0, value)
2176
1405
if getattr(self, "checker_initiator_tag", None) is None:
2177
1406
return
2178
1407
if self.enabled:
2179
1408
# Reschedule checker run
2180
GLib.source_remove(self.checker_initiator_tag)
2181
self.checker_initiator_tag = GLib.timeout_add(
2182
value, self.start_checker)
2183
self.start_checker() # Start one now, too
2184
1409
gobject.source_remove(self.checker_initiator_tag)
1410
self.checker_initiator_tag = (gobject.timeout_add
1411
(value, self.start_checker))
1412
self.start_checker() # Start one now, too
1413
2185
1414
# Checker - property
2186
@dbus_service_property(_interface,
2187
signature="s",
1415
@dbus_service_property(_interface, signature="s",
2188
1416
access="readwrite")
2189
1417
def Checker_dbus_property(self, value=None):
2190
1418
if value is None: # get
2191
1419
return dbus.String(self.checker_command)
2192
self.checker_command = str(value)
2193
1420
self.checker_command = unicode(value)
1421
2194
1422
# CheckerRunning - property
2195
@dbus_service_property(_interface,
2196
signature="b",
1423
@dbus_service_property(_interface, signature="b",
2197
1424
access="readwrite")
2198
1425
def CheckerRunning_dbus_property(self, value=None):
2199
1426
if value is None: # get
2202
1429
self.start_checker()
2203
1430
else:
2204
1431
self.stop_checker()
2205
1432
2206
1433
# ObjectPath - property
2207
@dbus_annotations(
2208
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2209
"org.freedesktop.DBus.Deprecated": "true"})
2210
1434
@dbus_service_property(_interface, signature="o", access="read")
2211
1435
def ObjectPath_dbus_property(self):
2212
return self.dbus_object_path # is already a dbus.ObjectPath
2213
1436
return self.dbus_object_path # is already a dbus.ObjectPath
1437
2214
1438
# Secret = property
2215
@dbus_annotations(
2216
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2217
"invalidates"})
2218
@dbus_service_property(_interface,
2219
signature="ay",
2220
access="write",
2221
byte_arrays=True)
1439
@dbus_service_property(_interface, signature="ay",
1440
access="write", byte_arrays=True)
2222
1441
def Secret_dbus_property(self, value):
2223
self.secret = bytes(value)
2224
1442
self.secret = str(value)
1443
2225
1444
del _interface
2226
1445
2227
1446
2228
class ProxyClient:
2229
def __init__(self, child_pipe, key_id, fpr, address):
1447
class ProxyClient(object):
1448
def __init__(self, child_pipe, fpr, address):
2230
1449
self._pipe = child_pipe
2231
self._pipe.send(('init', key_id, fpr, address))
1450
self._pipe.send(('init', fpr, address))
2232
1451
if not self._pipe.recv():
2233
raise KeyError(key_id or fpr)
2234
1452
raise KeyError()
1453
2235
1454
def __getattribute__(self, name):
2236
1455
if name == '_pipe':
2237
1456
return super(ProxyClient, self).__getattribute__(name)
2240
1459
if data[0] == 'data':
2241
1460
return data[1]
2242
1461
if data[0] == 'function':
2243
2244
1462
def func(*args, **kwargs):
2245
1463
self._pipe.send(('funcall', name, args, kwargs))
2246
1464
return self._pipe.recv()[1]
2247
2248
1465
return func
2249
1466
2250
1467
def __setattr__(self, name, value):
2251
1468
if name == '_pipe':
2252
1469
return super(ProxyClient, self).__setattr__(name, value)
2253
1470
self._pipe.send(('setattr', name, value))
2254
1471
2255
1472
1473
class ClientDBusTransitional(ClientDBus):
1474
__metaclass__ = AlternateDBusNamesMetaclass
1475
1476
2256
1477
class ClientHandler(socketserver.BaseRequestHandler, object):
2257
1478
"""A class to handle client connections.
2258
1479
2259
1480
Instantiated once for each connection to handle it.
2260
1481
Note: This will run in its own forked process."""
2261
1482
2262
1483
def handle(self):
2263
1484
with contextlib.closing(self.server.child_pipe) as child_pipe:
2264
1485
logger.info("TCP connection from: %s",
2265
str(self.client_address))
1486
unicode(self.client_address))
2266
1487
logger.debug("Pipe FD: %d",
2267
1488
self.server.child_pipe.fileno())
2268
2269
session = gnutls.ClientSession(self.request)
2270
2271
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2272
# "+AES-256-CBC", "+SHA1",
2273
# "+COMP-NULL", "+CTYPE-OPENPGP",
2274
# "+DHE-DSS"))
1489
1490
session = (gnutls.connection
1491
.ClientSession(self.request,
1492
gnutls.connection
1493
.X509Credentials()))
1494
1495
# Note: gnutls.connection.X509Credentials is really a
1496
# generic GnuTLS certificate credentials object so long as
1497
# no X.509 keys are added to it. Therefore, we can use it
1498
# here despite using OpenPGP certificates.
1499
1500
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1501
# "+AES-256-CBC", "+SHA1",
1502
# "+COMP-NULL", "+CTYPE-OPENPGP",
1503
# "+DHE-DSS"))
2275
1504
# Use a fallback default, since this MUST be set.
2276
1505
priority = self.server.gnutls_priority
2277
1506
if priority is None:
2278
1507
priority = "NORMAL"
2279
gnutls.priority_set_direct(session._c_object,
2280
priority.encode("utf-8"),
2281
None)
2282
1508
(gnutls.library.functions
1509
.gnutls_priority_set_direct(session._c_object,
1510
priority, None))
1511
2283
1512
# Start communication using the Mandos protocol
2284
1513
# Get protocol number
2285
1514
line = self.request.makefile().readline()
2286
1515
logger.debug("Protocol version: %r", line)
2287
1516
try:
2288
1517
if int(line.strip().split()[0]) > 1:
2289
raise RuntimeError(line)
1518
raise RuntimeError
2290
1519
except (ValueError, IndexError, RuntimeError) as error:
2291
1520
logger.error("Unknown protocol version: %s", error)
2292
1521
return
2293
1522
2294
1523
# Start GnuTLS connection
2295
1524
try:
2296
1525
session.handshake()
2297
except gnutls.Error as error:
1526
except gnutls.errors.GNUTLSError as error:
2298
1527
logger.warning("Handshake failed: %s", error)
2299
1528
# Do not run session.bye() here: the session is not
2300
1529
# established. Just abandon the request.
2301
1530
return
2302
1531
logger.debug("Handshake succeeded")
2303
1532
2304
1533
approval_required = False
2305
1534
try:
2306
if gnutls.has_rawpk:
2307
fpr = b""
2308
try:
2309
key_id = self.key_id(
2310
self.peer_certificate(session))
2311
except (TypeError, gnutls.Error) as error:
2312
logger.warning("Bad certificate: %s", error)
2313
return
2314
logger.debug("Key ID: %s", key_id)
2315
2316
else:
2317
key_id = b""
2318
try:
2319
fpr = self.fingerprint(
2320
self.peer_certificate(session))
2321
except (TypeError, gnutls.Error) as error:
2322
logger.warning("Bad certificate: %s", error)
2323
return
2324
logger.debug("Fingerprint: %s", fpr)
2325
2326
try:
2327
client = ProxyClient(child_pipe, key_id, fpr,
1535
try:
1536
fpr = self.fingerprint(self.peer_certificate
1537
(session))
1538
except (TypeError,
1539
gnutls.errors.GNUTLSError) as error:
1540
logger.warning("Bad certificate: %s", error)
1541
return
1542
logger.debug("Fingerprint: %s", fpr)
1543
1544
try:
1545
client = ProxyClient(child_pipe, fpr,
2328
1546
self.client_address)
2329
1547
except KeyError:
2330
1548
return
2331
1549
1550
if self.server.use_dbus:
1551
# Emit D-Bus signal
1552
client.NewRequest(str(self.client_address))
1553
2332
1554
if client.approval_delay:
2333
1555
delay = client.approval_delay
2334
1556
client.approvals_pending += 1
2335
1557
approval_required = True
2336
1558
2337
1559
while True:
2338
1560
if not client.enabled:
2339
1561
logger.info("Client %s is disabled",
2340
client.name)
1562
client.name)
2341
1563
if self.server.use_dbus:
2342
1564
# Emit D-Bus signal
2343
1565
client.Rejected("Disabled")
2344
1566
return
2345
1567
2346
1568
if client.approved or not client.approval_delay:
2347
# We are approved or approval is disabled
1569
#We are approved or approval is disabled
2348
1570
break
2349
1571
elif client.approved is None:
2350
1572
logger.info("Client %s needs approval",
2352
1574
if self.server.use_dbus:
2353
1575
# Emit D-Bus signal
2354
1576
client.NeedApproval(
2355
client.approval_delay.total_seconds()
2356
* 1000, client.approved_by_default)
1577
client.approval_delay_milliseconds(),
1578
client.approved_by_default)
2357
1579
else:
2358
1580
logger.warning("Client %s was not approved",
2359
1581
client.name)
2361
1583
# Emit D-Bus signal
2362
1584
client.Rejected("Denied")
2363
1585
return
2364
2365
# wait until timeout or approved
1586
1587
#wait until timeout or approved
2366
1588
time = datetime.datetime.now()
2367
1589
client.changedstate.acquire()
2368
client.changedstate.wait(delay.total_seconds())
1590
(client.changedstate.wait
1591
(float(client.timedelta_to_milliseconds(delay)
1592
/ 1000)))
2369
1593
client.changedstate.release()
2370
1594
time2 = datetime.datetime.now()
2371
1595
if (time2 - time) >= delay:
2381
1605
break
2382
1606
else:
2383
1607
delay -= time2 - time
2384
2385
try:
2386
session.send(client.secret)
2387
except gnutls.Error as error:
2388
logger.warning("gnutls send failed",
2389
exc_info=error)
2390
return
2391
1608
1609
sent_size = 0
1610
while sent_size < len(client.secret):
1611
try:
1612
sent = session.send(client.secret[sent_size:])
1613
except gnutls.errors.GNUTLSError as error:
1614
logger.warning("gnutls send failed")
1615
return
1616
logger.debug("Sent: %d, remaining: %d",
1617
sent, len(client.secret)
1618
- (sent_size + sent))
1619
sent_size += sent
1620
2392
1621
logger.info("Sending secret to %s", client.name)
2393
1622
# bump the timeout using extended_timeout
2394
client.bump_timeout(client.extended_timeout)
1623
client.checked_ok(client.extended_timeout)
2395
1624
if self.server.use_dbus:
2396
1625
# Emit D-Bus signal
2397
1626
client.GotSecret()
2398
1627
2399
1628
finally:
2400
1629
if approval_required:
2401
1630
client.approvals_pending -= 1
2402
1631
try:
2403
1632
session.bye()
2404
except gnutls.Error as error:
2405
logger.warning("GnuTLS bye failed",
2406
exc_info=error)
2407
1633
except gnutls.errors.GNUTLSError as error:
1634
logger.warning("GnuTLS bye failed")
1635
2408
1636
@staticmethod
2409
1637
def peer_certificate(session):
2410
"Return the peer's certificate as a bytestring"
2411
try:
2412
cert_type = gnutls.certificate_type_get2(session._c_object,
2413
gnutls.CTYPE_PEERS)
2414
except AttributeError:
2415
cert_type = gnutls.certificate_type_get(session._c_object)
2416
if gnutls.has_rawpk:
2417
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2418
else:
2419
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2420
# If not a valid certificate type...
2421
if cert_type not in valid_cert_types:
2422
logger.info("Cert type %r not in %r", cert_type,
2423
valid_cert_types)
2424
# ...return invalid data
2425
return b""
1638
"Return the peer's OpenPGP certificate as a bytestring"
1639
# If not an OpenPGP certificate...
1640
if (gnutls.library.functions
1641
.gnutls_certificate_type_get(session._c_object)
1642
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1643
# ...do the normal thing
1644
return session.peer_certificate
2426
1645
list_size = ctypes.c_uint(1)
2427
cert_list = (gnutls.certificate_get_peers
1646
cert_list = (gnutls.library.functions
1647
.gnutls_certificate_get_peers
2428
1648
(session._c_object, ctypes.byref(list_size)))
2429
1649
if not bool(cert_list) and list_size.value != 0:
2430
raise gnutls.Error("error getting peer certificate")
1650
raise gnutls.errors.GNUTLSError("error getting peer"
1651
" certificate")
2431
1652
if list_size.value == 0:
2432
1653
return None
2433
1654
cert = cert_list[0]
2434
1655
return ctypes.string_at(cert.data, cert.size)
2435
2436
@staticmethod
2437
def key_id(certificate):
2438
"Convert a certificate bytestring to a hexdigit key ID"
2439
# New GnuTLS "datum" with the public key
2440
datum = gnutls.datum_t(
2441
ctypes.cast(ctypes.c_char_p(certificate),
2442
ctypes.POINTER(ctypes.c_ubyte)),
2443
ctypes.c_uint(len(certificate)))
2444
# XXX all these need to be created in the gnutls "module"
2445
# New empty GnuTLS certificate
2446
pubkey = gnutls.pubkey_t()
2447
gnutls.pubkey_init(ctypes.byref(pubkey))
2448
# Import the raw public key into the certificate
2449
gnutls.pubkey_import(pubkey,
2450
ctypes.byref(datum),
2451
gnutls.X509_FMT_DER)
2452
# New buffer for the key ID
2453
buf = ctypes.create_string_buffer(32)
2454
buf_len = ctypes.c_size_t(len(buf))
2455
# Get the key ID from the raw public key into the buffer
2456
gnutls.pubkey_get_key_id(pubkey,
2457
gnutls.KEYID_USE_SHA256,
2458
ctypes.cast(ctypes.byref(buf),
2459
ctypes.POINTER(ctypes.c_ubyte)),
2460
ctypes.byref(buf_len))
2461
# Deinit the certificate
2462
gnutls.pubkey_deinit(pubkey)
2463
2464
# Convert the buffer to a Python bytestring
2465
key_id = ctypes.string_at(buf, buf_len.value)
2466
# Convert the bytestring to hexadecimal notation
2467
hex_key_id = binascii.hexlify(key_id).upper()
2468
return hex_key_id
2469
1656
2470
1657
@staticmethod
2471
1658
def fingerprint(openpgp):
2472
1659
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2473
1660
# New GnuTLS "datum" with the OpenPGP public key
2474
datum = gnutls.datum_t(
2475
ctypes.cast(ctypes.c_char_p(openpgp),
2476
ctypes.POINTER(ctypes.c_ubyte)),
2477
ctypes.c_uint(len(openpgp)))
1661
datum = (gnutls.library.types
1662
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1663
ctypes.POINTER
1664
(ctypes.c_ubyte)),
1665
ctypes.c_uint(len(openpgp))))
2478
1666
# New empty GnuTLS certificate
2479
crt = gnutls.openpgp_crt_t()
2480
gnutls.openpgp_crt_init(ctypes.byref(crt))
1667
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1668
(gnutls.library.functions
1669
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2481
1670
# Import the OpenPGP public key into the certificate
2482
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2483
gnutls.OPENPGP_FMT_RAW)
1671
(gnutls.library.functions
1672
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1673
gnutls.library.constants
1674
.GNUTLS_OPENPGP_FMT_RAW))
2484
1675
# Verify the self signature in the key
2485
1676
crtverify = ctypes.c_uint()
2486
gnutls.openpgp_crt_verify_self(crt, 0,
2487
ctypes.byref(crtverify))
1677
(gnutls.library.functions
1678
.gnutls_openpgp_crt_verify_self(crt, 0,
1679
ctypes.byref(crtverify)))
2488
1680
if crtverify.value != 0:
2489
gnutls.openpgp_crt_deinit(crt)
2490
raise gnutls.CertificateSecurityError(code
2491
=crtverify.value)
1681
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1682
raise (gnutls.errors.CertificateSecurityError
1683
("Verify failed"))
2492
1684
# New buffer for the fingerprint
2493
1685
buf = ctypes.create_string_buffer(20)
2494
1686
buf_len = ctypes.c_size_t()
2495
1687
# Get the fingerprint from the certificate into the buffer
2496
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2497
ctypes.byref(buf_len))
1688
(gnutls.library.functions
1689
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1690
ctypes.byref(buf_len)))
2498
1691
# Deinit the certificate
2499
gnutls.openpgp_crt_deinit(crt)
1692
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2500
1693
# Convert the buffer to a Python bytestring
2501
1694
fpr = ctypes.string_at(buf, buf_len.value)
2502
1695
# Convert the bytestring to hexadecimal notation
2504
1697
return hex_fpr
2505
1698
2506
1699
2507
class MultiprocessingMixIn:
1700
class MultiprocessingMixIn(object):
2508
1701
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2509
2510
1702
def sub_process_main(self, request, address):
2511
1703
try:
2512
1704
self.finish_request(request, address)
2513
1705
except Exception:
2514
1706
self.handle_error(request, address)
2515
1707
self.close_request(request)
2516
1708
2517
1709
def process_request(self, request, address):
2518
1710
"""Start a new process to process the request."""
2519
proc = multiprocessing.Process(target=self.sub_process_main,
2520
args=(request, address))
1711
proc = multiprocessing.Process(target = self.sub_process_main,
1712
args = (request,
1713
address))
2521
1714
proc.start()
2522
1715
return proc
2523
1716
2524
1717
2525
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1718
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2526
1719
""" adds a pipe to the MixIn """
2527
2528
1720
def process_request(self, request, client_address):
2529
1721
"""Overrides and wraps the original process_request().
2530
1722
2531
1723
This function creates a new pipe in self.pipe
2532
1724
"""
2533
1725
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2534
1726
2535
1727
proc = MultiprocessingMixIn.process_request(self, request,
2536
1728
client_address)
2537
1729
self.child_pipe.close()
2538
1730
self.add_pipe(parent_pipe, proc)
2539
1731
2540
1732
def add_pipe(self, parent_pipe, proc):
2541
1733
"""Dummy function; override as necessary"""
2542
raise NotImplementedError()
1734
raise NotImplementedError
2543
1735
2544
1736
2545
1737
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2546
socketserver.TCPServer):
1738
socketserver.TCPServer, object):
2547
1739
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2548
1740
2549
1741
Attributes:
2550
1742
enabled: Boolean; whether this server is activated yet
2551
1743
interface: None or a network interface name (string)
2552
1744
use_ipv6: Boolean; to use IPv6 or not
2553
1745
"""
2554
2555
1746
def __init__(self, server_address, RequestHandlerClass,
2556
interface=None,
2557
use_ipv6=True,
2558
socketfd=None):
2559
"""If socketfd is set, use that file descriptor instead of
2560
creating a new one with socket.socket().
2561
"""
1747
interface=None, use_ipv6=True):
2562
1748
self.interface = interface
2563
1749
if use_ipv6:
2564
1750
self.address_family = socket.AF_INET6
2565
if socketfd is not None:
2566
# Save the file descriptor
2567
self.socketfd = socketfd
2568
# Save the original socket.socket() function
2569
self.socket_socket = socket.socket
2570
2571
# To implement --socket, we monkey patch socket.socket.
2572
#
2573
# (When socketserver.TCPServer is a new-style class, we
2574
# could make self.socket into a property instead of monkey
2575
# patching socket.socket.)
2576
#
2577
# Create a one-time-only replacement for socket.socket()
2578
@functools.wraps(socket.socket)
2579
def socket_wrapper(*args, **kwargs):
2580
# Restore original function so subsequent calls are
2581
# not affected.
2582
socket.socket = self.socket_socket
2583
del self.socket_socket
2584
# This time only, return a new socket object from the
2585
# saved file descriptor.
2586
return socket.fromfd(self.socketfd, *args, **kwargs)
2587
# Replace socket.socket() function with wrapper
2588
socket.socket = socket_wrapper
2589
# The socketserver.TCPServer.__init__ will call
2590
# socket.socket(), which might be our replacement,
2591
# socket_wrapper(), if socketfd was set.
2592
1751
socketserver.TCPServer.__init__(self, server_address,
2593
1752
RequestHandlerClass)
2594
2595
1753
def server_bind(self):
2596
1754
"""This overrides the normal server_bind() function
2597
1755
to bind to an interface if one was specified, and also NOT to
2598
1756
bind to an address or port if they were not specified."""
2599
global SO_BINDTODEVICE
2600
1757
if self.interface is not None:
2601
1758
if SO_BINDTODEVICE is None:
2602
# Fall back to a hard-coded value which seems to be
2603
# common enough.
2604
logger.warning("SO_BINDTODEVICE not found, trying 25")
2605
SO_BINDTODEVICE = 25
2606
try:
2607
self.socket.setsockopt(
2608
socket.SOL_SOCKET, SO_BINDTODEVICE,
2609
(self.interface + "\0").encode("utf-8"))
2610
except socket.error as error:
2611
if error.errno == errno.EPERM:
2612
logger.error("No permission to bind to"
2613
" interface %s", self.interface)
2614
elif error.errno == errno.ENOPROTOOPT:
2615
logger.error("SO_BINDTODEVICE not available;"
2616
" cannot bind to interface %s",
2617
self.interface)
2618
elif error.errno == errno.ENODEV:
2619
logger.error("Interface %s does not exist,"
2620
" cannot bind", self.interface)
2621
else:
2622
raise
1759
logger.error("SO_BINDTODEVICE does not exist;"
1760
" cannot bind to interface %s",
1761
self.interface)
1762
else:
1763
try:
1764
self.socket.setsockopt(socket.SOL_SOCKET,
1765
SO_BINDTODEVICE,
1766
str(self.interface
1767
+ '\0'))
1768
except socket.error as error:
1769
if error[0] == errno.EPERM:
1770
logger.error("No permission to"
1771
" bind to interface %s",
1772
self.interface)
1773
elif error[0] == errno.ENOPROTOOPT:
1774
logger.error("SO_BINDTODEVICE not available;"
1775
" cannot bind to interface %s",
1776
self.interface)
1777
else:
1778
raise
2623
1779
# Only bind(2) the socket if we really need to.
2624
1780
if self.server_address[0] or self.server_address[1]:
2625
if self.server_address[1]:
2626
self.allow_reuse_address = True
2627
1781
if not self.server_address[0]:
2628
1782
if self.address_family == socket.AF_INET6:
2629
any_address = "::" # in6addr_any
1783
any_address = "::" # in6addr_any
2630
1784
else:
2631
any_address = "0.0.0.0" # INADDR_ANY
1785
any_address = socket.INADDR_ANY
2632
1786
self.server_address = (any_address,
2633
1787
self.server_address[1])
2634
1788
elif not self.server_address[1]:
2635
self.server_address = (self.server_address[0], 0)
1789
self.server_address = (self.server_address[0],
1790
0)
2636
1791
# if self.interface:
2637
1792
# self.server_address = (self.server_address[0],
2638
1793
# 0, # port
2644
1799
2645
1800
class MandosServer(IPv6_TCPServer):
2646
1801
"""Mandos server.
2647
1802
2648
1803
Attributes:
2649
1804
clients: set of Client objects
2650
1805
gnutls_priority GnuTLS priority string
2651
1806
use_dbus: Boolean; to emit D-Bus signals or not
2652
2653
Assumes a GLib.MainLoop event loop.
1807
1808
Assumes a gobject.MainLoop event loop.
2654
1809
"""
2655
2656
1810
def __init__(self, server_address, RequestHandlerClass,
2657
interface=None,
2658
use_ipv6=True,
2659
clients=None,
2660
gnutls_priority=None,
2661
use_dbus=True,
2662
socketfd=None):
1811
interface=None, use_ipv6=True, clients=None,
1812
gnutls_priority=None, use_dbus=True):
2663
1813
self.enabled = False
2664
1814
self.clients = clients
2665
1815
if self.clients is None:
2668
1818
self.gnutls_priority = gnutls_priority
2669
1819
IPv6_TCPServer.__init__(self, server_address,
2670
1820
RequestHandlerClass,
2671
interface=interface,
2672
use_ipv6=use_ipv6,
2673
socketfd=socketfd)
2674
1821
interface = interface,
1822
use_ipv6 = use_ipv6)
2675
1823
def server_activate(self):
2676
1824
if self.enabled:
2677
1825
return socketserver.TCPServer.server_activate(self)
2678
1826
2679
1827
def enable(self):
2680
1828
self.enabled = True
2681
1829
2682
1830
def add_pipe(self, parent_pipe, proc):
2683
1831
# Call "handle_ipc" for both data and EOF events
2684
GLib.io_add_watch(
2685
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2686
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2687
functools.partial(self.handle_ipc,
2688
parent_pipe=parent_pipe,
2689
proc=proc))
2690
2691
def handle_ipc(self, source, condition,
2692
parent_pipe=None,
2693
proc=None,
2694
client_object=None):
1832
gobject.io_add_watch(parent_pipe.fileno(),
1833
gobject.IO_IN | gobject.IO_HUP,
1834
functools.partial(self.handle_ipc,
1835
parent_pipe =
1836
parent_pipe,
1837
proc = proc))
1838
1839
def handle_ipc(self, source, condition, parent_pipe=None,
1840
proc = None, client_object=None):
1841
condition_names = {
1842
gobject.IO_IN: "IN", # There is data to read.
1843
gobject.IO_OUT: "OUT", # Data can be written (without
1844
# blocking).
1845
gobject.IO_PRI: "PRI", # There is urgent data to read.
1846
gobject.IO_ERR: "ERR", # Error condition.
1847
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1848
# broken, usually for pipes and
1849
# sockets).
1850
}
1851
conditions_string = ' | '.join(name
1852
for cond, name in
1853
condition_names.iteritems()
1854
if cond & condition)
2695
1855
# error, or the other end of multiprocessing.Pipe has closed
2696
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1856
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2697
1857
# Wait for other process to exit
2698
1858
proc.join()
2699
1859
return False
2700
1860
2701
1861
# Read a request from the child
2702
1862
request = parent_pipe.recv()
2703
1863
command = request[0]
2704
1864
2705
1865
if command == 'init':
2706
key_id = request[1].decode("ascii")
2707
fpr = request[2].decode("ascii")
2708
address = request[3]
2709
2710
for c in self.clients.values():
2711
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2712
continue
2713
if key_id and c.key_id == key_id:
2714
client = c
2715
break
2716
if fpr and c.fingerprint == fpr:
1866
fpr = request[1]
1867
address = request[2]
1868
1869
for c in self.clients.itervalues():
1870
if c.fingerprint == fpr:
2717
1871
client = c
2718
1872
break
2719
1873
else:
2720
logger.info("Client not found for key ID: %s, address"
2721
": %s", key_id or fpr, address)
1874
logger.info("Client not found for fingerprint: %s, ad"
1875
"dress: %s", fpr, address)
2722
1876
if self.use_dbus:
2723
1877
# Emit D-Bus signal
2724
mandos_dbus_service.ClientNotFound(key_id or fpr,
1878
mandos_dbus_service.ClientNotFound(fpr,
2725
1879
address[0])
2726
1880
parent_pipe.send(False)
2727
1881
return False
2728
2729
GLib.io_add_watch(
2730
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2731
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2732
functools.partial(self.handle_ipc,
2733
parent_pipe=parent_pipe,
2734
proc=proc,
2735
client_object=client))
1882
1883
gobject.io_add_watch(parent_pipe.fileno(),
1884
gobject.IO_IN | gobject.IO_HUP,
1885
functools.partial(self.handle_ipc,
1886
parent_pipe =
1887
parent_pipe,
1888
proc = proc,
1889
client_object =
1890
client))
2736
1891
parent_pipe.send(True)
2737
1892
# remove the old hook in favor of the new above hook on
2738
1893
# same fileno
2741
1896
funcname = request[1]
2742
1897
args = request[2]
2743
1898
kwargs = request[3]
2744
1899
2745
1900
parent_pipe.send(('data', getattr(client_object,
2746
1901
funcname)(*args,
2747
**kwargs)))
2748
1902
**kwargs)))
1903
2749
1904
if command == 'getattr':
2750
1905
attrname = request[1]
2751
if isinstance(client_object.__getattribute__(attrname),
2752
collections.Callable):
2753
parent_pipe.send(('function', ))
1906
if callable(client_object.__getattribute__(attrname)):
1907
parent_pipe.send(('function',))
2754
1908
else:
2755
parent_pipe.send((
2756
'data', client_object.__getattribute__(attrname)))
2757
1909
parent_pipe.send(('data', client_object
1910
.__getattribute__(attrname)))
1911
2758
1912
if command == 'setattr':
2759
1913
attrname = request[1]
2760
1914
value = request[2]
2761
1915
setattr(client_object, attrname, value)
2762
1916
2763
1917
return True
2764
1918
2765
1919
2766
def rfc3339_duration_to_delta(duration):
2767
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2768
2769
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2770
True
2771
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2772
True
2773
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2774
True
2775
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2776
True
2777
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2778
True
2779
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2780
True
2781
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2782
True
2783
"""
2784
2785
# Parsing an RFC 3339 duration with regular expressions is not
2786
# possible - there would have to be multiple places for the same
2787
# values, like seconds. The current code, while more esoteric, is
2788
# cleaner without depending on a parsing library. If Python had a
2789
# built-in library for parsing we would use it, but we'd like to
2790
# avoid excessive use of external libraries.
2791
2792
# New type for defining tokens, syntax, and semantics all-in-one
2793
Token = collections.namedtuple("Token", (
2794
"regexp", # To match token; if "value" is not None, must have
2795
# a "group" containing digits
2796
"value", # datetime.timedelta or None
2797
"followers")) # Tokens valid after this token
2798
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2799
# the "duration" ABNF definition in RFC 3339, Appendix A.
2800
token_end = Token(re.compile(r"$"), None, frozenset())
2801
token_second = Token(re.compile(r"(\d+)S"),
2802
datetime.timedelta(seconds=1),
2803
frozenset((token_end, )))
2804
token_minute = Token(re.compile(r"(\d+)M"),
2805
datetime.timedelta(minutes=1),
2806
frozenset((token_second, token_end)))
2807
token_hour = Token(re.compile(r"(\d+)H"),
2808
datetime.timedelta(hours=1),
2809
frozenset((token_minute, token_end)))
2810
token_time = Token(re.compile(r"T"),
2811
None,
2812
frozenset((token_hour, token_minute,
2813
token_second)))
2814
token_day = Token(re.compile(r"(\d+)D"),
2815
datetime.timedelta(days=1),
2816
frozenset((token_time, token_end)))
2817
token_month = Token(re.compile(r"(\d+)M"),
2818
datetime.timedelta(weeks=4),
2819
frozenset((token_day, token_end)))
2820
token_year = Token(re.compile(r"(\d+)Y"),
2821
datetime.timedelta(weeks=52),
2822
frozenset((token_month, token_end)))
2823
token_week = Token(re.compile(r"(\d+)W"),
2824
datetime.timedelta(weeks=1),
2825
frozenset((token_end, )))
2826
token_duration = Token(re.compile(r"P"), None,
2827
frozenset((token_year, token_month,
2828
token_day, token_time,
2829
token_week)))
2830
# Define starting values:
2831
# Value so far
2832
value = datetime.timedelta()
2833
found_token = None
2834
# Following valid tokens
2835
followers = frozenset((token_duration, ))
2836
# String left to parse
2837
s = duration
2838
# Loop until end token is found
2839
while found_token is not token_end:
2840
# Search for any currently valid tokens
2841
for token in followers:
2842
match = token.regexp.match(s)
2843
if match is not None:
2844
# Token found
2845
if token.value is not None:
2846
# Value found, parse digits
2847
factor = int(match.group(1), 10)
2848
# Add to value so far
2849
value += factor * token.value
2850
# Strip token from string
2851
s = token.regexp.sub("", s, 1)
2852
# Go to found token
2853
found_token = token
2854
# Set valid next tokens
2855
followers = found_token.followers
2856
break
2857
else:
2858
# No currently valid tokens were found
2859
raise ValueError("Invalid RFC 3339 duration: {!r}"
2860
.format(duration))
2861
# End token found
2862
return value
2863
2864
2865
1920
def string_to_delta(interval):
2866
1921
"""Parse a string and return a datetime.timedelta
2867
2868
>>> string_to_delta('7d') == datetime.timedelta(7)
2869
True
2870
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2871
True
2872
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2873
True
2874
>>> string_to_delta('24h') == datetime.timedelta(1)
2875
True
2876
>>> string_to_delta('1w') == datetime.timedelta(7)
2877
True
2878
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2879
True
1922
1923
>>> string_to_delta('7d')
1924
datetime.timedelta(7)
1925
>>> string_to_delta('60s')
1926
datetime.timedelta(0, 60)
1927
>>> string_to_delta('60m')
1928
datetime.timedelta(0, 3600)
1929
>>> string_to_delta('24h')
1930
datetime.timedelta(1)
1931
>>> string_to_delta('1w')
1932
datetime.timedelta(7)
1933
>>> string_to_delta('5m 30s')
1934
datetime.timedelta(0, 330)
2880
1935
"""
2881
2882
try:
2883
return rfc3339_duration_to_delta(interval)
2884
except ValueError:
2885
pass
2886
2887
1936
timevalue = datetime.timedelta(0)
2888
1937
for s in interval.split():
2889
1938
try:
2890
suffix = s[-1]
1939
suffix = unicode(s[-1])
2891
1940
value = int(s[:-1])
2892
1941
if suffix == "d":
2893
1942
delta = datetime.timedelta(value)
2900
1949
elif suffix == "w":
2901
1950
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2902
1951
else:
2903
raise ValueError("Unknown suffix {!r}".format(suffix))
2904
except IndexError as e:
1952
raise ValueError("Unknown suffix %r" % suffix)
1953
except (ValueError, IndexError) as e:
2905
1954
raise ValueError(*(e.args))
2906
1955
timevalue += delta
2907
1956
return timevalue
2908
1957
2909
1958
2910
def daemon(nochdir=False, noclose=False):
1959
def daemon(nochdir = False, noclose = False):
2911
1960
"""See daemon(3). Standard BSD Unix function.
2912
1961
2913
1962
This should really exist as os.daemon, but it doesn't (yet)."""
2914
1963
if os.fork():
2915
1964
sys.exit()
2920
1969
sys.exit()
2921
1970
if not noclose:
2922
1971
# Close all standard open file descriptors
2923
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1972
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2924
1973
if not stat.S_ISCHR(os.fstat(null).st_mode):
2925
1974
raise OSError(errno.ENODEV,
2926
"{} not a character device"
2927
.format(os.devnull))
1975
"%s not a character device"
1976
% os.path.devnull)
2928
1977
os.dup2(null, sys.stdin.fileno())
2929
1978
os.dup2(null, sys.stdout.fileno())
2930
1979
os.dup2(null, sys.stderr.fileno())
2933
1982
2934
1983
2935
1984
def main():
2936
1985
2937
1986
##################################################################
2938
1987
# Parsing of options, both command line and config file
2939
1988
2940
1989
parser = argparse.ArgumentParser()
2941
1990
parser.add_argument("-v", "--version", action="version",
2942
version="%(prog)s {}".format(version),
1991
version = "%%(prog)s %s" % version,
2943
1992
help="show version number and exit")
2944
1993
parser.add_argument("-i", "--interface", metavar="IF",
2945
1994
help="Bind to interface IF")
2951
2000
help="Run self-test")
2952
2001
parser.add_argument("--debug", action="store_true",
2953
2002
help="Debug mode; run in foreground and log"
2954
" to terminal", default=None)
2003
" to terminal")
2955
2004
parser.add_argument("--debuglevel", metavar="LEVEL",
2956
2005
help="Debug level for stdout output")
2957
2006
parser.add_argument("--priority", help="GnuTLS"
2964
2013
" files")
2965
2014
parser.add_argument("--no-dbus", action="store_false",
2966
2015
dest="use_dbus", help="Do not provide D-Bus"
2967
" system bus interface", default=None)
2016
" system bus interface")
2968
2017
parser.add_argument("--no-ipv6", action="store_false",
2969
dest="use_ipv6", help="Do not use IPv6",
2970
default=None)
2018
dest="use_ipv6", help="Do not use IPv6")
2971
2019
parser.add_argument("--no-restore", action="store_false",
2972
2020
dest="restore", help="Do not restore stored"
2973
" state", default=None)
2974
parser.add_argument("--socket", type=int,
2975
help="Specify a file descriptor to a network"
2976
" socket to use instead of creating one")
2021
" state")
2977
2022
parser.add_argument("--statedir", metavar="DIR",
2978
2023
help="Directory to save/restore state in")
2979
parser.add_argument("--foreground", action="store_true",
2980
help="Run in foreground", default=None)
2981
parser.add_argument("--no-zeroconf", action="store_false",
2982
dest="zeroconf", help="Do not use Zeroconf",
2983
default=None)
2984
2024
2985
2025
options = parser.parse_args()
2986
2026
2027
if options.check:
2028
import doctest
2029
doctest.testmod()
2030
sys.exit()
2031
2987
2032
# Default values for config file for server-global settings
2988
if gnutls.has_rawpk:
2989
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2990
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2991
else:
2992
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2993
":+SIGN-DSA-SHA256")
2994
server_defaults = {"interface": "",
2995
"address": "",
2996
"port": "",
2997
"debug": "False",
2998
"priority": priority,
2999
"servicename": "Mandos",
3000
"use_dbus": "True",
3001
"use_ipv6": "True",
3002
"debuglevel": "",
3003
"restore": "True",
3004
"socket": "",
3005
"statedir": "/var/lib/mandos",
3006
"foreground": "False",
3007
"zeroconf": "True",
3008
}
3009
del priority
3010
2033
server_defaults = { "interface": "",
2034
"address": "",
2035
"port": "",
2036
"debug": "False",
2037
"priority":
2038
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2039
"servicename": "Mandos",
2040
"use_dbus": "True",
2041
"use_ipv6": "True",
2042
"debuglevel": "",
2043
"restore": "True",
2044
"statedir": "/var/lib/mandos"
2045
}
2046
3011
2047
# Parse config file for server-global settings
3012
server_config = configparser.ConfigParser(server_defaults)
2048
server_config = configparser.SafeConfigParser(server_defaults)
3013
2049
del server_defaults
3014
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3015
# Convert the ConfigParser object to a dict
2050
server_config.read(os.path.join(options.configdir,
2051
"mandos.conf"))
2052
# Convert the SafeConfigParser object to a dict
3016
2053
server_settings = server_config.defaults()
3017
2054
# Use the appropriate methods on the non-string config options
3018
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3019
"foreground", "zeroconf"):
2055
for option in ("debug", "use_dbus", "use_ipv6"):
3020
2056
server_settings[option] = server_config.getboolean("DEFAULT",
3021
2057
option)
3022
2058
if server_settings["port"]:
3023
2059
server_settings["port"] = server_config.getint("DEFAULT",
3024
2060
"port")
3025
if server_settings["socket"]:
3026
server_settings["socket"] = server_config.getint("DEFAULT",
3027
"socket")
3028
# Later, stdin will, and stdout and stderr might, be dup'ed
3029
# over with an opened os.devnull. But we don't want this to
3030
# happen with a supplied network socket.
3031
if 0 <= server_settings["socket"] <= 2:
3032
server_settings["socket"] = os.dup(server_settings
3033
["socket"])
3034
2061
del server_config
3035
2062
3036
2063
# Override the settings from the config file with command line
3037
2064
# options, if set.
3038
2065
for option in ("interface", "address", "port", "debug",
3039
"priority", "servicename", "configdir", "use_dbus",
3040
"use_ipv6", "debuglevel", "restore", "statedir",
3041
"socket", "foreground", "zeroconf"):
2066
"priority", "servicename", "configdir",
2067
"use_dbus", "use_ipv6", "debuglevel", "restore",
2068
"statedir"):
3042
2069
value = getattr(options, option)
3043
2070
if value is not None:
3044
2071
server_settings[option] = value
3045
2072
del options
3046
2073
# Force all strings to be unicode
3047
2074
for option in server_settings.keys():
3048
if isinstance(server_settings[option], bytes):
3049
server_settings[option] = (server_settings[option]
3050
.decode("utf-8"))
3051
# Force all boolean options to be boolean
3052
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3053
"foreground", "zeroconf"):
3054
server_settings[option] = bool(server_settings[option])
3055
# Debug implies foreground
3056
if server_settings["debug"]:
3057
server_settings["foreground"] = True
2075
if type(server_settings[option]) is str:
2076
server_settings[option] = unicode(server_settings[option])
3058
2077
# Now we have our good server settings in "server_settings"
3059
2078
3060
2079
##################################################################
3061
3062
if (not server_settings["zeroconf"]
3063
and not (server_settings["port"]
3064
or server_settings["socket"] != "")):
3065
parser.error("Needs port or socket to work without Zeroconf")
3066
2080
3067
2081
# For convenience
3068
2082
debug = server_settings["debug"]
3069
2083
debuglevel = server_settings["debuglevel"]
3071
2085
use_ipv6 = server_settings["use_ipv6"]
3072
2086
stored_state_path = os.path.join(server_settings["statedir"],
3073
2087
stored_state_file)
3074
foreground = server_settings["foreground"]
3075
zeroconf = server_settings["zeroconf"]
3076
2088
3077
2089
if debug:
3078
2090
initlogger(debug, logging.DEBUG)
3079
2091
else:
3082
2094
else:
3083
2095
level = getattr(logging, debuglevel.upper())
3084
2096
initlogger(debug, level)
3085
2097
3086
2098
if server_settings["servicename"] != "Mandos":
3087
syslogger.setFormatter(
3088
logging.Formatter('Mandos ({}) [%(process)d]:'
3089
' %(levelname)s: %(message)s'.format(
3090
server_settings["servicename"])))
3091
2099
syslogger.setFormatter(logging.Formatter
2100
('Mandos (%s) [%%(process)d]:'
2101
' %%(levelname)s: %%(message)s'
2102
% server_settings["servicename"]))
2103
3092
2104
# Parse config file with clients
3093
client_config = configparser.ConfigParser(Client.client_defaults)
2105
client_config = configparser.SafeConfigParser(Client
2106
.client_defaults)
3094
2107
client_config.read(os.path.join(server_settings["configdir"],
3095
2108
"clients.conf"))
3096
2109
3097
2110
global mandos_dbus_service
3098
2111
mandos_dbus_service = None
3099
3100
socketfd = None
3101
if server_settings["socket"] != "":
3102
socketfd = server_settings["socket"]
3103
tcp_server = MandosServer(
3104
(server_settings["address"], server_settings["port"]),
3105
ClientHandler,
3106
interface=(server_settings["interface"] or None),
3107
use_ipv6=use_ipv6,
3108
gnutls_priority=server_settings["priority"],
3109
use_dbus=use_dbus,
3110
socketfd=socketfd)
3111
if not foreground:
3112
pidfilename = "/run/mandos.pid"
3113
if not os.path.isdir("/run/."):
3114
pidfilename = "/var/run/mandos.pid"
3115
pidfile = None
3116
try:
3117
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3118
except IOError as e:
3119
logger.error("Could not open file %r", pidfilename,
3120
exc_info=e)
3121
3122
for name, group in (("_mandos", "_mandos"),
3123
("mandos", "mandos"),
3124
("nobody", "nogroup")):
3125
try:
3126
uid = pwd.getpwnam(name).pw_uid
3127
gid = pwd.getpwnam(group).pw_gid
3128
break
2112
2113
tcp_server = MandosServer((server_settings["address"],
2114
server_settings["port"]),
2115
ClientHandler,
2116
interface=(server_settings["interface"]
2117
or None),
2118
use_ipv6=use_ipv6,
2119
gnutls_priority=
2120
server_settings["priority"],
2121
use_dbus=use_dbus)
2122
if not debug:
2123
pidfilename = "/var/run/mandos.pid"
2124
try:
2125
pidfile = open(pidfilename, "w")
2126
except IOError:
2127
logger.error("Could not open file %r", pidfilename)
2128
2129
try:
2130
uid = pwd.getpwnam("_mandos").pw_uid
2131
gid = pwd.getpwnam("_mandos").pw_gid
2132
except KeyError:
2133
try:
2134
uid = pwd.getpwnam("mandos").pw_uid
2135
gid = pwd.getpwnam("mandos").pw_gid
3129
2136
except KeyError:
3130
continue
3131
else:
3132
uid = 65534
3133
gid = 65534
2137
try:
2138
uid = pwd.getpwnam("nobody").pw_uid
2139
gid = pwd.getpwnam("nobody").pw_gid
2140
except KeyError:
2141
uid = 65534
2142
gid = 65534
3134
2143
try:
3135
2144
os.setgid(gid)
3136
2145
os.setuid(uid)
3137
if debug:
3138
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3139
gid))
3140
2146
except OSError as error:
3141
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3142
.format(uid, gid, os.strerror(error.errno)))
3143
if error.errno != errno.EPERM:
3144
raise
3145
2147
if error[0] != errno.EPERM:
2148
raise error
2149
3146
2150
if debug:
3147
2151
# Enable all possible GnuTLS debugging
3148
2152
3149
2153
# "Use a log level over 10 to enable all debugging options."
3150
2154
# - GnuTLS manual
3151
gnutls.global_set_log_level(11)
3152
3153
@gnutls.log_func
2155
gnutls.library.functions.gnutls_global_set_log_level(11)
2156
2157
@gnutls.library.types.gnutls_log_func
3154
2158
def debug_gnutls(level, string):
3155
2159
logger.debug("GnuTLS: %s", string[:-1])
3156
3157
gnutls.global_set_log_function(debug_gnutls)
3158
2160
2161
(gnutls.library.functions
2162
.gnutls_global_set_log_function(debug_gnutls))
2163
3159
2164
# Redirect stdin so all checkers get /dev/null
3160
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2165
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3161
2166
os.dup2(null, sys.stdin.fileno())
3162
2167
if null > 2:
3163
2168
os.close(null)
3164
2169
3165
2170
# Need to fork before connecting to D-Bus
3166
if not foreground:
2171
if not debug:
3167
2172
# Close all input and output, do double fork, etc.
3168
2173
daemon()
3169
3170
if gi.version_info < (3, 10, 2):
3171
# multiprocessing will use threads, so before we use GLib we
3172
# need to inform GLib that threads will be used.
3173
GLib.threads_init()
3174
2174
2175
gobject.threads_init()
2176
3175
2177
global main_loop
3176
2178
# From the Avahi example code
3177
DBusGMainLoop(set_as_default=True)
3178
main_loop = GLib.MainLoop()
2179
DBusGMainLoop(set_as_default=True )
2180
main_loop = gobject.MainLoop()
3179
2181
bus = dbus.SystemBus()
3180
2182
# End of Avahi example code
3181
2183
if use_dbus:
3182
2184
try:
3183
2185
bus_name = dbus.service.BusName("se.recompile.Mandos",
3184
bus,
3185
do_not_queue=True)
3186
old_bus_name = dbus.service.BusName(
3187
"se.bsnet.fukt.Mandos", bus,
3188
do_not_queue=True)
3189
except dbus.exceptions.DBusException as e:
3190
logger.error("Disabling D-Bus:", exc_info=e)
2186
bus, do_not_queue=True)
2187
old_bus_name = (dbus.service.BusName
2188
("se.bsnet.fukt.Mandos", bus,
2189
do_not_queue=True))
2190
except dbus.exceptions.NameExistsException as e:
2191
logger.error(unicode(e) + ", disabling D-Bus")
3191
2192
use_dbus = False
3192
2193
server_settings["use_dbus"] = False
3193
2194
tcp_server.use_dbus = False
3194
if zeroconf:
3195
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3196
service = AvahiServiceToSyslog(
3197
name=server_settings["servicename"],
3198
servicetype="_mandos._tcp",
3199
protocol=protocol,
3200
bus=bus)
3201
if server_settings["interface"]:
3202
service.interface = if_nametoindex(
3203
server_settings["interface"].encode("utf-8"))
3204
2195
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2196
service = AvahiServiceToSyslog(name =
2197
server_settings["servicename"],
2198
servicetype = "_mandos._tcp",
2199
protocol = protocol, bus = bus)
2200
if server_settings["interface"]:
2201
service.interface = (if_nametoindex
2202
(str(server_settings["interface"])))
2203
3205
2204
global multiprocessing_manager
3206
2205
multiprocessing_manager = multiprocessing.Manager()
3207
2206
3208
2207
client_class = Client
3209
2208
if use_dbus:
3210
client_class = functools.partial(ClientDBus, bus=bus)
3211
2209
client_class = functools.partial(ClientDBusTransitional,
2210
bus = bus)
2211
3212
2212
client_settings = Client.config_parser(client_config)
3213
2213
old_client_settings = {}
3214
2214
clients_data = {}
3215
3216
# This is used to redirect stdout and stderr for checker processes
3217
global wnull
3218
wnull = open(os.devnull, "w") # A writable /dev/null
3219
# Only used if server is running in foreground but not in debug
3220
# mode
3221
if debug or not foreground:
3222
wnull.close()
3223
2215
3224
2216
# Get client data and settings from last running state.
3225
2217
if server_settings["restore"]:
3226
2218
try:
3227
2219
with open(stored_state_path, "rb") as stored_state:
3228
if sys.version_info.major == 2:
3229
clients_data, old_client_settings = pickle.load(
3230
stored_state)
3231
else:
3232
bytes_clients_data, bytes_old_client_settings = (
3233
pickle.load(stored_state, encoding="bytes"))
3234
# Fix bytes to strings
3235
# clients_data
3236
# .keys()
3237
clients_data = {(key.decode("utf-8")
3238
if isinstance(key, bytes)
3239
else key): value
3240
for key, value in
3241
bytes_clients_data.items()}
3242
del bytes_clients_data
3243
for key in clients_data:
3244
value = {(k.decode("utf-8")
3245
if isinstance(k, bytes) else k): v
3246
for k, v in
3247
clients_data[key].items()}
3248
clients_data[key] = value
3249
# .client_structure
3250
value["client_structure"] = [
3251
(s.decode("utf-8")
3252
if isinstance(s, bytes)
3253
else s) for s in
3254
value["client_structure"]]
3255
# .name, .host, and .checker_command
3256
for k in ("name", "host", "checker_command"):
3257
if isinstance(value[k], bytes):
3258
value[k] = value[k].decode("utf-8")
3259
if "key_id" not in value:
3260
value["key_id"] = ""
3261
elif "fingerprint" not in value:
3262
value["fingerprint"] = ""
3263
# old_client_settings
3264
# .keys()
3265
old_client_settings = {
3266
(key.decode("utf-8")
3267
if isinstance(key, bytes)
3268
else key): value
3269
for key, value in
3270
bytes_old_client_settings.items()}
3271
del bytes_old_client_settings
3272
# .host and .checker_command
3273
for value in old_client_settings.values():
3274
for attribute in ("host", "checker_command"):
3275
if isinstance(value[attribute], bytes):
3276
value[attribute] = (value[attribute]
3277
.decode("utf-8"))
2220
clients_data, old_client_settings = (pickle.load
2221
(stored_state))
3278
2222
os.remove(stored_state_path)
3279
2223
except IOError as e:
3280
if e.errno == errno.ENOENT:
3281
logger.warning("Could not load persistent state:"
3282
" {}".format(os.strerror(e.errno)))
3283
else:
3284
logger.critical("Could not load persistent state:",
3285
exc_info=e)
2224
logger.warning("Could not load persistent state: {0}"
2225
.format(e))
2226
if e.errno != errno.ENOENT:
3286
2227
raise
3287
2228
except EOFError as e:
3288
2229
logger.warning("Could not load persistent state: "
3289
"EOFError:",
3290
exc_info=e)
3291
2230
"EOFError: {0}".format(e))
2231
3292
2232
with PGPEngine() as pgp:
3293
for client_name, client in clients_data.items():
3294
# Skip removed clients
3295
if client_name not in client_settings:
3296
continue
3297
2233
for client_name, client in clients_data.iteritems():
3298
2234
# Decide which value to use after restoring saved state.
3299
2235
# We have three different values: Old config file,
3300
2236
# new config file, and saved state.
3305
2241
# For each value in new config, check if it
3306
2242
# differs from the old config value (Except for
3307
2243
# the "secret" attribute)
3308
if (name != "secret"
3309
and (value !=
3310
old_client_settings[client_name][name])):
2244
if (name != "secret" and
2245
value != old_client_settings[client_name]
2246
[name]):
3311
2247
client[name] = value
3312
2248
except KeyError:
3313
2249
pass
3314
2250
3315
2251
# Clients who has passed its expire date can still be
3316
# enabled if its last checker was successful. A Client
3317
# whose checker succeeded before we stored its state is
3318
# assumed to have successfully run all checkers during
3319
# downtime.
2252
# enabled if its last checker was successful. Clients
2253
# whose checker failed before we stored its state is
2254
# assumed to have failed all checkers during downtime.
3320
2255
if client["enabled"]:
3321
2256
if datetime.datetime.utcnow() >= client["expires"]:
3322
2257
if not client["last_checked_ok"]:
3323
2258
logger.warning(
3324
"disabling client {} - Client never "
3325
"performed a successful checker".format(
3326
client_name))
2259
"disabling client {0} - Client never "
2260
"performed a successfull checker"
2261
.format(client["name"]))
3327
2262
client["enabled"] = False
3328
2263
elif client["last_checker_status"] != 0:
3329
2264
logger.warning(
3330
"disabling client {} - Client last"
3331
" checker failed with error code"
3332
" {}".format(
3333
client_name,
3334
client["last_checker_status"]))
2265
"disabling client {0} - Client "
2266
"last checker failed with error code {1}"
2267
.format(client["name"],
2268
client["last_checker_status"]))
3335
2269
client["enabled"] = False
3336
2270
else:
3337
client["expires"] = (
3338
datetime.datetime.utcnow()
3339
+ client["timeout"])
2271
client["expires"] = (datetime.datetime
2272
.utcnow()
2273
+ client["timeout"])
3340
2274
logger.debug("Last checker succeeded,"
3341
" keeping {} enabled".format(
3342
client_name))
2275
" keeping {0} enabled"
2276
.format(client["name"]))
3343
2277
try:
3344
client["secret"] = pgp.decrypt(
3345
client["encrypted_secret"],
3346
client_settings[client_name]["secret"])
2278
client["secret"] = (
2279
pgp.decrypt(client["encrypted_secret"],
2280
client_settings[client_name]
2281
["secret"]))
3347
2282
except PGPError:
3348
2283
# If decryption fails, we use secret from new settings
3349
logger.debug("Failed to decrypt {} old secret".format(
3350
client_name))
3351
client["secret"] = (client_settings[client_name]
3352
["secret"])
2284
logger.debug("Failed to decrypt {0} old secret"
2285
.format(client_name))
2286
client["secret"] = (
2287
client_settings[client_name]["secret"])
3353
2288
2289
3354
2290
# Add/remove clients based on new changes made to config
3355
2291
for client_name in (set(old_client_settings)
3356
2292
- set(client_settings)):
3359
2295
- set(old_client_settings)):
3360
2296
clients_data[client_name] = client_settings[client_name]
3361
2297
3362
# Create all client objects
3363
for client_name, client in clients_data.items():
2298
# Create clients all clients
2299
for client_name, client in clients_data.iteritems():
3364
2300
tcp_server.clients[client_name] = client_class(
3365
name=client_name,
3366
settings=client,
3367
server_settings=server_settings)
3368
2301
name = client_name, settings = client)
2302
3369
2303
if not tcp_server.clients:
3370
2304
logger.warning("No clients defined")
3371
3372
if not foreground:
3373
if pidfile is not None:
3374
pid = os.getpid()
3375
try:
3376
with pidfile:
3377
print(pid, file=pidfile)
3378
except IOError:
3379
logger.error("Could not write to file %r with PID %d",
3380
pidfilename, pid)
3381
del pidfile
2305
2306
if not debug:
2307
try:
2308
with pidfile:
2309
pid = os.getpid()
2310
pidfile.write(str(pid) + "\n".encode("utf-8"))
2311
del pidfile
2312
except IOError:
2313
logger.error("Could not write to file %r with PID %d",
2314
pidfilename, pid)
2315
except NameError:
2316
# "pidfile" was never created
2317
pass
3382
2318
del pidfilename
3383
3384
for termsig in (signal.SIGHUP, signal.SIGTERM):
3385
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3386
lambda: main_loop.quit() and False)
3387
2319
signal.signal(signal.SIGINT, signal.SIG_IGN)
2320
2321
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2322
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2323
3388
2324
if use_dbus:
3389
3390
@alternate_dbus_interfaces(
3391
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3392
class MandosDBusService(DBusObjectWithObjectManager):
2325
class MandosDBusService(dbus.service.Object):
3393
2326
"""A D-Bus proxy object"""
3394
3395
2327
def __init__(self):
3396
2328
dbus.service.Object.__init__(self, bus, "/")
3397
3398
2329
_interface = "se.recompile.Mandos"
3399
2330
3400
2331
@dbus.service.signal(_interface, signature="o")
3401
2332
def ClientAdded(self, objpath):
3402
2333
"D-Bus signal"
3403
2334
pass
3404
2335
3405
2336
@dbus.service.signal(_interface, signature="ss")
3406
def ClientNotFound(self, key_id, address):
2337
def ClientNotFound(self, fingerprint, address):
3407
2338
"D-Bus signal"
3408
2339
pass
3409
3410
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3411
"true"})
2340
3412
2341
@dbus.service.signal(_interface, signature="os")
3413
2342
def ClientRemoved(self, objpath, name):
3414
2343
"D-Bus signal"
3415
2344
pass
3416
3417
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3418
"true"})
2345
3419
2346
@dbus.service.method(_interface, out_signature="ao")
3420
2347
def GetAllClients(self):
3421
2348
"D-Bus method"
3422
return dbus.Array(c.dbus_object_path for c in
3423
tcp_server.clients.values())
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2349
return dbus.Array(c.dbus_object_path
2350
for c in
2351
tcp_server.clients.itervalues())
2352
3427
2353
@dbus.service.method(_interface,
3428
2354
out_signature="a{oa{sv}}")
3429
2355
def GetAllClientsWithProperties(self):
3430
2356
"D-Bus method"
3431
2357
return dbus.Dictionary(
3432
{c.dbus_object_path: c.GetAll(
3433
"se.recompile.Mandos.Client")
3434
for c in tcp_server.clients.values()},
2358
((c.dbus_object_path, c.GetAll(""))
2359
for c in tcp_server.clients.itervalues()),
3435
2360
signature="oa{sv}")
3436
2361
3437
2362
@dbus.service.method(_interface, in_signature="o")
3438
2363
def RemoveClient(self, object_path):
3439
2364
"D-Bus method"
3440
for c in tcp_server.clients.values():
2365
for c in tcp_server.clients.itervalues():
3441
2366
if c.dbus_object_path == object_path:
3442
2367
del tcp_server.clients[c.name]
3443
2368
c.remove_from_connection()
3444
# Don't signal the disabling
2369
# Don't signal anything except ClientRemoved
3445
2370
c.disable(quiet=True)
3446
# Emit D-Bus signal for removal
3447
self.client_removed_signal(c)
2371
# Emit D-Bus signal
2372
self.ClientRemoved(object_path, c.name)
3448
2373
return
3449
2374
raise KeyError(object_path)
3450
2375
3451
2376
del _interface
3452
3453
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3454
out_signature="a{oa{sa{sv}}}")
3455
def GetManagedObjects(self):
3456
"""D-Bus method"""
3457
return dbus.Dictionary(
3458
{client.dbus_object_path:
3459
dbus.Dictionary(
3460
{interface: client.GetAll(interface)
3461
for interface in
3462
client._get_all_interface_names()})
3463
for client in tcp_server.clients.values()})
3464
3465
def client_added_signal(self, client):
3466
"""Send the new standard signal and the old signal"""
3467
if use_dbus:
3468
# New standard signal
3469
self.InterfacesAdded(
3470
client.dbus_object_path,
3471
dbus.Dictionary(
3472
{interface: client.GetAll(interface)
3473
for interface in
3474
client._get_all_interface_names()}))
3475
# Old signal
3476
self.ClientAdded(client.dbus_object_path)
3477
3478
def client_removed_signal(self, client):
3479
"""Send the new standard signal and the old signal"""
3480
if use_dbus:
3481
# New standard signal
3482
self.InterfacesRemoved(
3483
client.dbus_object_path,
3484
client._get_all_interface_names())
3485
# Old signal
3486
self.ClientRemoved(client.dbus_object_path,
3487
client.name)
3488
3489
mandos_dbus_service = MandosDBusService()
3490
3491
# Save modules to variables to exempt the modules from being
3492
# unloaded before the function registered with atexit() is run.
3493
mp = multiprocessing
3494
wn = wnull
3495
2377
2378
class MandosDBusServiceTransitional(MandosDBusService):
2379
__metaclass__ = AlternateDBusNamesMetaclass
2380
mandos_dbus_service = MandosDBusServiceTransitional()
2381
3496
2382
def cleanup():
3497
2383
"Cleanup function; run on exit"
3498
if zeroconf:
3499
service.cleanup()
3500
3501
mp.active_children()
3502
wn.close()
2384
service.cleanup()
2385
2386
multiprocessing.active_children()
3503
2387
if not (tcp_server.clients or client_settings):
3504
2388
return
3505
2389
3506
2390
# Store client before exiting. Secrets are encrypted with key
3507
2391
# based on what config file has. If config file is
3508
2392
# removed/edited, old secret will thus be unrecovable.
3509
2393
clients = {}
3510
2394
with PGPEngine() as pgp:
3511
for client in tcp_server.clients.values():
2395
for client in tcp_server.clients.itervalues():
3512
2396
key = client_settings[client.name]["secret"]
3513
2397
client.encrypted_secret = pgp.encrypt(client.secret,
3514
2398
key)
3515
2399
client_dict = {}
3516
2400
3517
2401
# A list of attributes that can not be pickled
3518
2402
# + secret.
3519
exclude = {"bus", "changedstate", "secret",
3520
"checker", "server_settings"}
3521
for name, typ in inspect.getmembers(dbus.service
3522
.Object):
2403
exclude = set(("bus", "changedstate", "secret",
2404
"checker"))
2405
for name, typ in (inspect.getmembers
2406
(dbus.service.Object)):
3523
2407
exclude.add(name)
3524
2408
3525
2409
client_dict["encrypted_secret"] = (client
3526
2410
.encrypted_secret)
3527
2411
for attr in client.client_structure:
3528
2412
if attr not in exclude:
3529
2413
client_dict[attr] = getattr(client, attr)
3530
2414
3531
2415
clients[client.name] = client_dict
3532
2416
del client_settings[client.name]["secret"]
3533
2417
3534
2418
try:
3535
with tempfile.NamedTemporaryFile(
3536
mode='wb',
3537
suffix=".pickle",
3538
prefix='clients-',
3539
dir=os.path.dirname(stored_state_path),
3540
delete=False) as stored_state:
3541
pickle.dump((clients, client_settings), stored_state,
3542
protocol=2)
3543
tempname = stored_state.name
2419
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2420
prefix="clients-",
2421
dir=os.path.dirname
2422
(stored_state_path))
2423
with os.fdopen(tempfd, "wb") as stored_state:
2424
pickle.dump((clients, client_settings), stored_state)
3544
2425
os.rename(tempname, stored_state_path)
3545
2426
except (IOError, OSError) as e:
2427
logger.warning("Could not save persistent state: {0}"
2428
.format(e))
3546
2429
if not debug:
3547
2430
try:
3548
2431
os.remove(tempname)
3549
2432
except NameError:
3550
2433
pass
3551
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3552
logger.warning("Could not save persistent state: {}"
3553
.format(os.strerror(e.errno)))
3554
else:
3555
logger.warning("Could not save persistent state:",
3556
exc_info=e)
3557
raise
3558
2434
if e.errno not in set((errno.ENOENT, errno.EACCES,
2435
errno.EEXIST)):
2436
raise e
2437
3559
2438
# Delete all clients, and settings from config
3560
2439
while tcp_server.clients:
3561
2440
name, client = tcp_server.clients.popitem()
3562
2441
if use_dbus:
3563
2442
client.remove_from_connection()
3564
# Don't signal the disabling
2443
# Don't signal anything except ClientRemoved
3565
2444
client.disable(quiet=True)
3566
# Emit D-Bus signal for removal
3567
2445
if use_dbus:
3568
mandos_dbus_service.client_removed_signal(client)
2446
# Emit D-Bus signal
2447
mandos_dbus_service.ClientRemoved(client
2448
.dbus_object_path,
2449
client.name)
3569
2450
client_settings.clear()
3570
2451
3571
2452
atexit.register(cleanup)
3572
3573
for client in tcp_server.clients.values():
2453
2454
for client in tcp_server.clients.itervalues():
3574
2455
if use_dbus:
3575
# Emit D-Bus signal for adding
3576
mandos_dbus_service.client_added_signal(client)
2456
# Emit D-Bus signal
2457
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3577
2458
# Need to initiate checking of clients
3578
2459
if client.enabled:
3579
2460
client.init_checker()
3580
2461
3581
2462
tcp_server.enable()
3582
2463
tcp_server.server_activate()
3583
2464
3584
2465
# Find out what port we got
3585
if zeroconf:
3586
service.port = tcp_server.socket.getsockname()[1]
2466
service.port = tcp_server.socket.getsockname()[1]
3587
2467
if use_ipv6:
3588
2468
logger.info("Now listening on address %r, port %d,"
3589
" flowinfo %d, scope_id %d",
3590
*tcp_server.socket.getsockname())
2469
" flowinfo %d, scope_id %d"
2470
% tcp_server.socket.getsockname())
3591
2471
else: # IPv4
3592
logger.info("Now listening on address %r, port %d",
3593
*tcp_server.socket.getsockname())
3594
3595
# service.interface = tcp_server.socket.getsockname()[3]
3596
2472
logger.info("Now listening on address %r, port %d"
2473
% tcp_server.socket.getsockname())
2474
2475
#service.interface = tcp_server.socket.getsockname()[3]
2476
3597
2477
try:
3598
if zeroconf:
3599
# From the Avahi example code
3600
try:
3601
service.activate()
3602
except dbus.exceptions.DBusException as error:
3603
logger.critical("D-Bus Exception", exc_info=error)
3604
cleanup()
3605
sys.exit(1)
3606
# End of Avahi example code
3607
3608
GLib.io_add_watch(
3609
GLib.IOChannel.unix_new(tcp_server.fileno()),
3610
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3611
lambda *args, **kwargs: (tcp_server.handle_request
3612
(*args[2:], **kwargs) or True))
3613
2478
# From the Avahi example code
2479
try:
2480
service.activate()
2481
except dbus.exceptions.DBusException as error:
2482
logger.critical("DBusException: %s", error)
2483
cleanup()
2484
sys.exit(1)
2485
# End of Avahi example code
2486
2487
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2488
lambda *args, **kwargs:
2489
(tcp_server.handle_request
2490
(*args[2:], **kwargs) or True))
2491
3614
2492
logger.debug("Starting main loop")
3615
2493
main_loop.run()
3616
2494
except AvahiError as error:
3617
logger.critical("Avahi Error", exc_info=error)
2495
logger.critical("AvahiError: %s", error)
3618
2496
cleanup()
3619
2497
sys.exit(1)
3620
2498
except KeyboardInterrupt:
3625
2503
# Must run before the D-Bus bus name gets deregistered
3626
2504
cleanup()
3627
2505
3628
3629
def should_only_run_tests():
3630
parser = argparse.ArgumentParser(add_help=False)
3631
parser.add_argument("--check", action='store_true')
3632
args, unknown_args = parser.parse_known_args()
3633
run_tests = args.check
3634
if run_tests:
3635
# Remove --check argument from sys.argv
3636
sys.argv[1:] = unknown_args
3637
return run_tests
3638
3639
# Add all tests from doctest strings
3640
def load_tests(loader, tests, none):
3641
import doctest
3642
tests.addTests(doctest.DocTestSuite())
3643
return tests
3644
3645
2506
if __name__ == '__main__':
3646
try:
3647
if should_only_run_tests():
3648
# Call using ./mandos --check [--verbose]
3649
unittest.main()
3650
else:
3651
main()
3652
finally:
3653
logging.shutdown()
2507
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0