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- Committer: Teddy Hogeborn
- Date: 2011-12-31 23:05:34 UTC
- Revision ID: teddy@recompile.se-20111231230534-o5w0uhwx30gwhmk7
Updated year in copyright notices.
- 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 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
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
str = unicode
95
96
# Show warnings by default
97
if not sys.warnoptions:
98
import warnings
99
warnings.simplefilter("default")
100
101
# Try to find the value of SO_BINDTODEVICE:
78
import GnuPGInterface
79
102
80
try:
103
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
104
# newer, and it is also the most natural place for it:
105
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
106
82
except AttributeError:
107
83
try:
108
# This is where SO_BINDTODEVICE was up to and including Python
109
# 2.6, and also 3.2:
110
84
from IN import SO_BINDTODEVICE
111
85
except ImportError:
112
# In Python 2.7 it seems to have been removed entirely.
113
# Try running the C preprocessor:
114
try:
115
cc = subprocess.Popen(["cc", "--language=c", "-E",
116
"/dev/stdin"],
117
stdin=subprocess.PIPE,
118
stdout=subprocess.PIPE)
119
stdout = cc.communicate(
120
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
121
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
122
except (OSError, ValueError, IndexError):
123
# No value found
124
SO_BINDTODEVICE = None
125
126
if sys.version_info < (3, 2):
127
configparser.Configparser = configparser.SafeConfigParser
128
129
version = "1.8.9"
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
130
89
stored_state_file = "clients.pickle"
131
90
132
91
logger = logging.getLogger()
133
logging.captureWarnings(True) # Show warnings via the logging system
134
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
135
95
136
96
try:
137
if_nametoindex = ctypes.cdll.LoadLibrary(
138
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
139
100
except (OSError, AttributeError):
140
141
101
def if_nametoindex(interface):
142
102
"Get an interface index the hard way, i.e. using fcntl()"
143
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
144
104
with contextlib.closing(socket.socket()) as s:
145
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
146
struct.pack(b"16s16x", interface))
147
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]
148
110
return interface_index
149
111
150
112
151
def copy_function(func):
152
"""Make a copy of a function"""
153
if sys.version_info.major == 2:
154
return types.FunctionType(func.func_code,
155
func.func_globals,
156
func.func_name,
157
func.func_defaults,
158
func.func_closure)
159
else:
160
return types.FunctionType(func.__code__,
161
func.__globals__,
162
func.__name__,
163
func.__defaults__,
164
func.__closure__)
165
166
167
113
def initlogger(debug, level=logging.WARNING):
168
114
"""init logger and add loglevel"""
169
170
global syslogger
171
syslogger = (logging.handlers.SysLogHandler(
172
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
173
address="/dev/log"))
115
174
116
syslogger.setFormatter(logging.Formatter
175
117
('Mandos [%(process)d]: %(levelname)s:'
176
118
' %(message)s'))
177
119
logger.addHandler(syslogger)
178
120
179
121
if debug:
180
122
console = logging.StreamHandler()
181
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
191
133
pass
192
134
193
135
194
class PGPEngine:
136
class PGPEngine(object):
195
137
"""A simple class for OpenPGP symmetric encryption & decryption"""
196
197
138
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
198
140
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
199
self.gpg = "gpg"
200
try:
201
output = subprocess.check_output(["gpgconf"])
202
for line in output.splitlines():
203
name, text, path = line.split(b":")
204
if name == b"gpg":
205
self.gpg = path
206
break
207
except OSError as e:
208
if e.errno != errno.ENOENT:
209
raise
210
self.gnupgargs = ['--batch',
211
'--homedir', self.tempdir,
212
'--force-mdc',
213
'--quiet']
214
# Only GPG version 1 has the --no-use-agent option.
215
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
216
self.gnupgargs.append("--no-use-agent")
217
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
218
148
def __enter__(self):
219
149
return self
220
221
def __exit__(self, exc_type, exc_value, traceback):
150
151
def __exit__ (self, exc_type, exc_value, traceback):
222
152
self._cleanup()
223
153
return False
224
154
225
155
def __del__(self):
226
156
self._cleanup()
227
157
228
158
def _cleanup(self):
229
159
if self.tempdir is not None:
230
160
# Delete contents of tempdir
231
161
for root, dirs, files in os.walk(self.tempdir,
232
topdown=False):
162
topdown = False):
233
163
for filename in files:
234
164
os.remove(os.path.join(root, filename))
235
165
for dirname in dirs:
237
167
# Remove tempdir
238
168
os.rmdir(self.tempdir)
239
169
self.tempdir = None
240
170
241
171
def password_encode(self, password):
242
172
# Passphrase can not be empty and can not contain newlines or
243
173
# NUL bytes. So we prefix it and hex encode it.
244
encoded = b"mandos" + binascii.hexlify(password)
245
if len(encoded) > 2048:
246
# GnuPG can't handle long passwords, so encode differently
247
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
248
.replace(b"\n", b"\\n")
249
.replace(b"\0", b"\\x00"))
250
return encoded
251
174
return b"mandos" + binascii.hexlify(password)
175
252
176
def encrypt(self, data, password):
253
passphrase = self.password_encode(password)
254
with tempfile.NamedTemporaryFile(
255
dir=self.tempdir) as passfile:
256
passfile.write(passphrase)
257
passfile.flush()
258
proc = subprocess.Popen([self.gpg, '--symmetric',
259
'--passphrase-file',
260
passfile.name]
261
+ self.gnupgargs,
262
stdin=subprocess.PIPE,
263
stdout=subprocess.PIPE,
264
stderr=subprocess.PIPE)
265
ciphertext, err = proc.communicate(input=data)
266
if proc.returncode != 0:
267
raise PGPError(err)
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
268
191
return ciphertext
269
192
270
193
def decrypt(self, data, password):
271
passphrase = self.password_encode(password)
272
with tempfile.NamedTemporaryFile(
273
dir=self.tempdir) as passfile:
274
passfile.write(passphrase)
275
passfile.flush()
276
proc = subprocess.Popen([self.gpg, '--decrypt',
277
'--passphrase-file',
278
passfile.name]
279
+ self.gnupgargs,
280
stdin=subprocess.PIPE,
281
stdout=subprocess.PIPE,
282
stderr=subprocess.PIPE)
283
decrypted_plaintext, err = proc.communicate(input=data)
284
if proc.returncode != 0:
285
raise PGPError(err)
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
286
208
return decrypted_plaintext
287
209
288
210
289
# Pretend that we have an Avahi module
290
class avahi:
291
"""This isn't so much a class as it is a module-like namespace."""
292
IF_UNSPEC = -1 # avahi-common/address.h
293
PROTO_UNSPEC = -1 # avahi-common/address.h
294
PROTO_INET = 0 # avahi-common/address.h
295
PROTO_INET6 = 1 # avahi-common/address.h
296
DBUS_NAME = "org.freedesktop.Avahi"
297
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
298
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
299
DBUS_PATH_SERVER = "/"
300
301
@staticmethod
302
def string_array_to_txt_array(t):
303
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
304
for s in t), signature="ay")
305
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
306
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
307
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
308
SERVER_INVALID = 0 # avahi-common/defs.h
309
SERVER_REGISTERING = 1 # avahi-common/defs.h
310
SERVER_RUNNING = 2 # avahi-common/defs.h
311
SERVER_COLLISION = 3 # avahi-common/defs.h
312
SERVER_FAILURE = 4 # avahi-common/defs.h
313
314
211
315
212
class AvahiError(Exception):
316
213
def __init__(self, value, *args, **kwargs):
317
214
self.value = value
318
return super(AvahiError, self).__init__(value, *args,
319
**kwargs)
320
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
321
218
322
219
class AvahiServiceError(AvahiError):
323
220
pass
324
221
325
326
222
class AvahiGroupError(AvahiError):
327
223
pass
328
224
329
225
330
class AvahiService:
226
class AvahiService(object):
331
227
"""An Avahi (Zeroconf) service.
332
228
333
229
Attributes:
334
230
interface: integer; avahi.IF_UNSPEC or an interface index.
335
231
Used to optionally bind to the specified interface.
336
232
name: string; Example: 'Mandos'
337
233
type: string; Example: '_mandos._tcp'.
338
See <https://www.iana.org/assignments/service-names-port-numbers>
234
See <http://www.dns-sd.org/ServiceTypes.html>
339
235
port: integer; what port to announce
340
236
TXT: list of strings; TXT record for the service
341
237
domain: string; Domain to publish on, default to .local if empty.
347
243
server: D-Bus Server
348
244
bus: dbus.SystemBus()
349
245
"""
350
351
def __init__(self,
352
interface=avahi.IF_UNSPEC,
353
name=None,
354
servicetype=None,
355
port=None,
356
TXT=None,
357
domain="",
358
host="",
359
max_renames=32768,
360
protocol=avahi.PROTO_UNSPEC,
361
bus=None):
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):
362
250
self.interface = interface
363
251
self.name = name
364
252
self.type = servicetype
373
261
self.server = None
374
262
self.bus = bus
375
263
self.entry_group_state_changed_match = None
376
377
def rename(self, remove=True):
264
def rename(self):
378
265
"""Derived from the Avahi example code"""
379
266
if self.rename_count >= self.max_renames:
380
267
logger.critical("No suitable Zeroconf service name found"
381
268
" after %i retries, exiting.",
382
269
self.rename_count)
383
270
raise AvahiServiceError("Too many renames")
384
self.name = str(
385
self.server.GetAlternativeServiceName(self.name))
386
self.rename_count += 1
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
387
273
logger.info("Changing Zeroconf service name to %r ...",
388
274
self.name)
389
if remove:
390
self.remove()
275
self.remove()
391
276
try:
392
277
self.add()
393
278
except dbus.exceptions.DBusException as error:
394
if (error.get_dbus_name()
395
== "org.freedesktop.Avahi.CollisionError"):
396
logger.info("Local Zeroconf service name collision.")
397
return self.rename(remove=False)
398
else:
399
logger.critical("D-Bus Exception", exc_info=error)
400
self.cleanup()
401
os._exit(1)
402
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
403
283
def remove(self):
404
284
"""Derived from the Avahi example code"""
405
285
if self.entry_group_state_changed_match is not None:
407
287
self.entry_group_state_changed_match = None
408
288
if self.group is not None:
409
289
self.group.Reset()
410
411
290
def add(self):
412
291
"""Derived from the Avahi example code"""
413
292
self.remove()
430
309
dbus.UInt16(self.port),
431
310
avahi.string_array_to_txt_array(self.TXT))
432
311
self.group.Commit()
433
434
312
def entry_group_state_changed(self, state, error):
435
313
"""Derived from the Avahi example code"""
436
314
logger.debug("Avahi entry group state change: %i", state)
437
315
438
316
if state == avahi.ENTRY_GROUP_ESTABLISHED:
439
317
logger.debug("Zeroconf service established.")
440
318
elif state == avahi.ENTRY_GROUP_COLLISION:
442
320
self.rename()
443
321
elif state == avahi.ENTRY_GROUP_FAILURE:
444
322
logger.critical("Avahi: Error in group state changed %s",
445
str(error))
446
raise AvahiGroupError("State changed: {!s}".format(error))
447
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
448
326
def cleanup(self):
449
327
"""Derived from the Avahi example code"""
450
328
if self.group is not None:
455
333
pass
456
334
self.group = None
457
335
self.remove()
458
459
336
def server_state_changed(self, state, error=None):
460
337
"""Derived from the Avahi example code"""
461
338
logger.debug("Avahi server state change: %i", state)
462
bad_states = {
463
avahi.SERVER_INVALID: "Zeroconf server invalid",
464
avahi.SERVER_REGISTERING: None,
465
avahi.SERVER_COLLISION: "Zeroconf server name collision",
466
avahi.SERVER_FAILURE: "Zeroconf server failure",
467
}
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" }
468
346
if state in bad_states:
469
347
if bad_states[state] is not None:
470
348
if error is None:
473
351
logger.error(bad_states[state] + ": %r", error)
474
352
self.cleanup()
475
353
elif state == avahi.SERVER_RUNNING:
476
try:
477
self.add()
478
except dbus.exceptions.DBusException as error:
479
if (error.get_dbus_name()
480
== "org.freedesktop.Avahi.CollisionError"):
481
logger.info("Local Zeroconf service name"
482
" collision.")
483
return self.rename(remove=False)
484
else:
485
logger.critical("D-Bus Exception", exc_info=error)
486
self.cleanup()
487
os._exit(1)
354
self.add()
488
355
else:
489
356
if error is None:
490
357
logger.debug("Unknown state: %r", state)
491
358
else:
492
359
logger.debug("Unknown state: %r: %r", state, error)
493
494
360
def activate(self):
495
361
"""Derived from the Avahi example code"""
496
362
if self.server is None:
500
366
follow_name_owner_changes=True),
501
367
avahi.DBUS_INTERFACE_SERVER)
502
368
self.server.connect_to_signal("StateChanged",
503
self.server_state_changed)
369
self.server_state_changed)
504
370
self.server_state_changed(self.server.GetState())
505
371
506
507
372
class AvahiServiceToSyslog(AvahiService):
508
def rename(self, *args, **kwargs):
373
def rename(self):
509
374
"""Add the new name to the syslog messages"""
510
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
511
syslogger.setFormatter(logging.Formatter(
512
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
513
.format(self.name)))
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
379
% self.name))
514
380
return ret
515
381
516
517
# Pretend that we have a GnuTLS module
518
class gnutls:
519
"""This isn't so much a class as it is a module-like namespace."""
520
521
library = ctypes.util.find_library("gnutls")
522
if library is None:
523
library = ctypes.util.find_library("gnutls-deb0")
524
_library = ctypes.cdll.LoadLibrary(library)
525
del library
526
527
# Unless otherwise indicated, the constants and types below are
528
# all from the gnutls/gnutls.h C header file.
529
530
# Constants
531
E_SUCCESS = 0
532
E_INTERRUPTED = -52
533
E_AGAIN = -28
534
CRT_OPENPGP = 2
535
CRT_RAWPK = 3
536
CLIENT = 2
537
SHUT_RDWR = 0
538
CRD_CERTIFICATE = 1
539
E_NO_CERTIFICATE_FOUND = -49
540
X509_FMT_DER = 0
541
NO_TICKETS = 1<<10
542
ENABLE_RAWPK = 1<<18
543
CTYPE_PEERS = 3
544
KEYID_USE_SHA256 = 1 # gnutls/x509.h
545
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
546
547
# Types
548
class session_int(ctypes.Structure):
549
_fields_ = []
550
session_t = ctypes.POINTER(session_int)
551
552
class certificate_credentials_st(ctypes.Structure):
553
_fields_ = []
554
certificate_credentials_t = ctypes.POINTER(
555
certificate_credentials_st)
556
certificate_type_t = ctypes.c_int
557
558
class datum_t(ctypes.Structure):
559
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
560
('size', ctypes.c_uint)]
561
562
class openpgp_crt_int(ctypes.Structure):
563
_fields_ = []
564
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
565
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
566
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
567
credentials_type_t = ctypes.c_int
568
transport_ptr_t = ctypes.c_void_p
569
close_request_t = ctypes.c_int
570
571
# Exceptions
572
class Error(Exception):
573
def __init__(self, message=None, code=None, args=()):
574
# Default usage is by a message string, but if a return
575
# code is passed, convert it to a string with
576
# gnutls.strerror()
577
self.code = code
578
if message is None and code is not None:
579
message = gnutls.strerror(code)
580
return super(gnutls.Error, self).__init__(
581
message, *args)
582
583
class CertificateSecurityError(Error):
584
pass
585
586
# Classes
587
class Credentials:
588
def __init__(self):
589
self._c_object = gnutls.certificate_credentials_t()
590
gnutls.certificate_allocate_credentials(
591
ctypes.byref(self._c_object))
592
self.type = gnutls.CRD_CERTIFICATE
593
594
def __del__(self):
595
gnutls.certificate_free_credentials(self._c_object)
596
597
class ClientSession:
598
def __init__(self, socket, credentials=None):
599
self._c_object = gnutls.session_t()
600
gnutls_flags = gnutls.CLIENT
601
if gnutls.check_version(b"3.5.6"):
602
gnutls_flags |= gnutls.NO_TICKETS
603
if gnutls.has_rawpk:
604
gnutls_flags |= gnutls.ENABLE_RAWPK
605
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
606
del gnutls_flags
607
gnutls.set_default_priority(self._c_object)
608
gnutls.transport_set_ptr(self._c_object, socket.fileno())
609
gnutls.handshake_set_private_extensions(self._c_object,
610
True)
611
self.socket = socket
612
if credentials is None:
613
credentials = gnutls.Credentials()
614
gnutls.credentials_set(self._c_object, credentials.type,
615
ctypes.cast(credentials._c_object,
616
ctypes.c_void_p))
617
self.credentials = credentials
618
619
def __del__(self):
620
gnutls.deinit(self._c_object)
621
622
def handshake(self):
623
return gnutls.handshake(self._c_object)
624
625
def send(self, data):
626
data = bytes(data)
627
data_len = len(data)
628
while data_len > 0:
629
data_len -= gnutls.record_send(self._c_object,
630
data[-data_len:],
631
data_len)
632
633
def bye(self):
634
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
635
636
# Error handling functions
637
def _error_code(result):
638
"""A function to raise exceptions on errors, suitable
639
for the 'restype' attribute on ctypes functions"""
640
if result >= 0:
641
return result
642
if result == gnutls.E_NO_CERTIFICATE_FOUND:
643
raise gnutls.CertificateSecurityError(code=result)
644
raise gnutls.Error(code=result)
645
646
def _retry_on_error(result, func, arguments):
647
"""A function to retry on some errors, suitable
648
for the 'errcheck' attribute on ctypes functions"""
649
while result < 0:
650
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
651
return _error_code(result)
652
result = func(*arguments)
653
return result
654
655
# Unless otherwise indicated, the function declarations below are
656
# all from the gnutls/gnutls.h C header file.
657
658
# Functions
659
priority_set_direct = _library.gnutls_priority_set_direct
660
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
661
ctypes.POINTER(ctypes.c_char_p)]
662
priority_set_direct.restype = _error_code
663
664
init = _library.gnutls_init
665
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
666
init.restype = _error_code
667
668
set_default_priority = _library.gnutls_set_default_priority
669
set_default_priority.argtypes = [session_t]
670
set_default_priority.restype = _error_code
671
672
record_send = _library.gnutls_record_send
673
record_send.argtypes = [session_t, ctypes.c_void_p,
674
ctypes.c_size_t]
675
record_send.restype = ctypes.c_ssize_t
676
record_send.errcheck = _retry_on_error
677
678
certificate_allocate_credentials = (
679
_library.gnutls_certificate_allocate_credentials)
680
certificate_allocate_credentials.argtypes = [
681
ctypes.POINTER(certificate_credentials_t)]
682
certificate_allocate_credentials.restype = _error_code
683
684
certificate_free_credentials = (
685
_library.gnutls_certificate_free_credentials)
686
certificate_free_credentials.argtypes = [
687
certificate_credentials_t]
688
certificate_free_credentials.restype = None
689
690
handshake_set_private_extensions = (
691
_library.gnutls_handshake_set_private_extensions)
692
handshake_set_private_extensions.argtypes = [session_t,
693
ctypes.c_int]
694
handshake_set_private_extensions.restype = None
695
696
credentials_set = _library.gnutls_credentials_set
697
credentials_set.argtypes = [session_t, credentials_type_t,
698
ctypes.c_void_p]
699
credentials_set.restype = _error_code
700
701
strerror = _library.gnutls_strerror
702
strerror.argtypes = [ctypes.c_int]
703
strerror.restype = ctypes.c_char_p
704
705
certificate_type_get = _library.gnutls_certificate_type_get
706
certificate_type_get.argtypes = [session_t]
707
certificate_type_get.restype = _error_code
708
709
certificate_get_peers = _library.gnutls_certificate_get_peers
710
certificate_get_peers.argtypes = [session_t,
711
ctypes.POINTER(ctypes.c_uint)]
712
certificate_get_peers.restype = ctypes.POINTER(datum_t)
713
714
global_set_log_level = _library.gnutls_global_set_log_level
715
global_set_log_level.argtypes = [ctypes.c_int]
716
global_set_log_level.restype = None
717
718
global_set_log_function = _library.gnutls_global_set_log_function
719
global_set_log_function.argtypes = [log_func]
720
global_set_log_function.restype = None
721
722
deinit = _library.gnutls_deinit
723
deinit.argtypes = [session_t]
724
deinit.restype = None
725
726
handshake = _library.gnutls_handshake
727
handshake.argtypes = [session_t]
728
handshake.restype = _error_code
729
handshake.errcheck = _retry_on_error
730
731
transport_set_ptr = _library.gnutls_transport_set_ptr
732
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
733
transport_set_ptr.restype = None
734
735
bye = _library.gnutls_bye
736
bye.argtypes = [session_t, close_request_t]
737
bye.restype = _error_code
738
bye.errcheck = _retry_on_error
739
740
check_version = _library.gnutls_check_version
741
check_version.argtypes = [ctypes.c_char_p]
742
check_version.restype = ctypes.c_char_p
743
744
_need_version = b"3.3.0"
745
if check_version(_need_version) is None:
746
raise self.Error("Needs GnuTLS {} or later"
747
.format(_need_version))
748
749
_tls_rawpk_version = b"3.6.6"
750
has_rawpk = bool(check_version(_tls_rawpk_version))
751
752
if has_rawpk:
753
# Types
754
class pubkey_st(ctypes.Structure):
755
_fields = []
756
pubkey_t = ctypes.POINTER(pubkey_st)
757
758
x509_crt_fmt_t = ctypes.c_int
759
760
# All the function declarations below are from gnutls/abstract.h
761
pubkey_init = _library.gnutls_pubkey_init
762
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
763
pubkey_init.restype = _error_code
764
765
pubkey_import = _library.gnutls_pubkey_import
766
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
767
x509_crt_fmt_t]
768
pubkey_import.restype = _error_code
769
770
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
771
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
772
ctypes.POINTER(ctypes.c_ubyte),
773
ctypes.POINTER(ctypes.c_size_t)]
774
pubkey_get_key_id.restype = _error_code
775
776
pubkey_deinit = _library.gnutls_pubkey_deinit
777
pubkey_deinit.argtypes = [pubkey_t]
778
pubkey_deinit.restype = None
779
else:
780
# All the function declarations below are from gnutls/openpgp.h
781
782
openpgp_crt_init = _library.gnutls_openpgp_crt_init
783
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
784
openpgp_crt_init.restype = _error_code
785
786
openpgp_crt_import = _library.gnutls_openpgp_crt_import
787
openpgp_crt_import.argtypes = [openpgp_crt_t,
788
ctypes.POINTER(datum_t),
789
openpgp_crt_fmt_t]
790
openpgp_crt_import.restype = _error_code
791
792
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
793
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
794
ctypes.POINTER(ctypes.c_uint)]
795
openpgp_crt_verify_self.restype = _error_code
796
797
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
798
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
799
openpgp_crt_deinit.restype = None
800
801
openpgp_crt_get_fingerprint = (
802
_library.gnutls_openpgp_crt_get_fingerprint)
803
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
804
ctypes.c_void_p,
805
ctypes.POINTER(
806
ctypes.c_size_t)]
807
openpgp_crt_get_fingerprint.restype = _error_code
808
809
if check_version(b"3.6.4"):
810
certificate_type_get2 = _library.gnutls_certificate_type_get2
811
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
812
certificate_type_get2.restype = _error_code
813
814
# Remove non-public functions
815
del _error_code, _retry_on_error
816
817
818
def call_pipe(connection, # : multiprocessing.Connection
819
func, *args, **kwargs):
820
"""This function is meant to be called by multiprocessing.Process
821
822
This function runs func(*args, **kwargs), and writes the resulting
823
return value on the provided multiprocessing.Connection.
824
"""
825
connection.send(func(*args, **kwargs))
826
connection.close()
827
828
829
class Client:
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):
830
389
"""A representation of a client host served by this server.
831
390
832
391
Attributes:
833
392
approved: bool(); 'None' if not yet approved/disapproved
834
393
approval_delay: datetime.timedelta(); Time to wait for approval
835
394
approval_duration: datetime.timedelta(); Duration of one approval
836
checker: multiprocessing.Process(); a running checker process used
837
to see if the client lives. 'None' if no process is
838
running.
839
checker_callback_tag: a GLib event source tag, or None
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
840
399
checker_command: string; External command which is run to check
841
400
if client lives. %() expansions are done at
842
401
runtime with vars(self) as dict, so that for
843
402
instance %(name)s can be used in the command.
844
checker_initiator_tag: a GLib event source tag, or None
403
checker_initiator_tag: a gobject event source tag, or None
845
404
created: datetime.datetime(); (UTC) object creation
846
405
client_structure: Object describing what attributes a client has
847
406
and is used for storing the client at exit
848
407
current_checker_command: string; current running checker_command
849
disable_initiator_tag: a GLib event source tag, or None
408
disable_initiator_tag: a gobject event source tag, or None
850
409
enabled: bool()
851
410
fingerprint: string (40 or 32 hexadecimal digits); used to
852
uniquely identify an OpenPGP client
853
key_id: string (64 hexadecimal digits); used to uniquely identify
854
a client using raw public keys
411
uniquely identify the client
855
412
host: string; available for use by the checker command
856
413
interval: datetime.timedelta(); How often to start a new checker
857
414
last_approval_request: datetime.datetime(); (UTC) or None
858
415
last_checked_ok: datetime.datetime(); (UTC) or None
859
416
last_checker_status: integer between 0 and 255 reflecting exit
860
417
status of last checker. -1 reflects crashed
861
checker, -2 means no checker completed yet.
862
last_checker_signal: The signal which killed the last checker, if
863
last_checker_status is -1
418
checker, or None.
864
419
last_enabled: datetime.datetime(); (UTC) or None
865
420
name: string; from the config file, used in log messages and
866
421
D-Bus identifiers
867
422
secret: bytestring; sent verbatim (over TLS) to client
868
423
timeout: datetime.timedelta(); How long from last_checked_ok
869
424
until this client is disabled
870
extended_timeout: extra long timeout when secret has been sent
425
extended_timeout: extra long timeout when password has been sent
871
426
runtime_expansions: Allowed attributes for runtime expansion.
872
427
expires: datetime.datetime(); time (UTC) when a client will be
873
428
disabled, or None
874
server_settings: The server_settings dict from main()
875
429
"""
876
430
877
431
runtime_expansions = ("approval_delay", "approval_duration",
878
"created", "enabled", "expires", "key_id",
879
"fingerprint", "host", "interval",
880
"last_approval_request", "last_checked_ok",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
881
434
"last_enabled", "name", "timeout")
882
client_defaults = {
883
"timeout": "PT5M",
884
"extended_timeout": "PT15M",
885
"interval": "PT2M",
886
"checker": "fping -q -- %%(host)s",
887
"host": "",
888
"approval_delay": "PT0S",
889
"approval_duration": "PT1S",
890
"approved_by_default": "True",
891
"enabled": "True",
892
}
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)
893
460
894
461
@staticmethod
895
462
def config_parser(config):
903
470
for client_name in config.sections():
904
471
section = dict(config.items(client_name))
905
472
client = settings[client_name] = {}
906
473
907
474
client["host"] = section["host"]
908
475
# Reformat values from string types to Python types
909
476
client["approved_by_default"] = config.getboolean(
910
477
client_name, "approved_by_default")
911
478
client["enabled"] = config.getboolean(client_name,
912
479
"enabled")
913
914
# Uppercase and remove spaces from key_id and fingerprint
915
# for later comparison purposes with return value from the
916
# key_id() and fingerprint() functions
917
client["key_id"] = (section.get("key_id", "").upper()
918
.replace(" ", ""))
480
919
481
client["fingerprint"] = (section["fingerprint"].upper()
920
482
.replace(" ", ""))
921
483
if "secret" in section:
922
client["secret"] = codecs.decode(section["secret"]
923
.encode("utf-8"),
924
"base64")
484
client["secret"] = section["secret"].decode("base64")
925
485
elif "secfile" in section:
926
486
with open(os.path.expanduser(os.path.expandvars
927
487
(section["secfile"])),
928
488
"rb") as secfile:
929
489
client["secret"] = secfile.read()
930
490
else:
931
raise TypeError("No secret or secfile for section {}"
932
.format(section))
491
raise TypeError("No secret or secfile for section %s"
492
% section)
933
493
client["timeout"] = string_to_delta(section["timeout"])
934
494
client["extended_timeout"] = string_to_delta(
935
495
section["extended_timeout"])
941
501
client["checker_command"] = section["checker"]
942
502
client["last_approval_request"] = None
943
503
client["last_checked_ok"] = None
944
client["last_checker_status"] = -2
945
504
client["last_checker_status"] = None
505
946
506
return settings
947
948
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."""
949
513
self.name = name
950
if server_settings is None:
951
server_settings = {}
952
self.server_settings = server_settings
953
514
# adding all client settings
954
for setting, value in settings.items():
515
for setting, value in settings.iteritems():
955
516
setattr(self, setting, value)
956
517
957
518
if self.enabled:
958
519
if not hasattr(self, "last_enabled"):
959
520
self.last_enabled = datetime.datetime.utcnow()
963
524
else:
964
525
self.last_enabled = None
965
526
self.expires = None
966
527
967
528
logger.debug("Creating client %r", self.name)
968
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
969
532
logger.debug(" Fingerprint: %s", self.fingerprint)
970
533
self.created = settings.get("created",
971
534
datetime.datetime.utcnow())
978
541
self.current_checker_command = None
979
542
self.approved = None
980
543
self.approvals_pending = 0
981
self.changedstate = multiprocessing_manager.Condition(
982
multiprocessing_manager.Lock())
983
self.client_structure = [attr
984
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()
985
549
if not attr.startswith("_")]
986
550
self.client_structure.append("client_structure")
987
988
for name, t in inspect.getmembers(
989
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)):
990
556
if not name.startswith("_"):
991
557
self.client_structure.append(name)
992
558
993
559
# Send notice to process children that client state has changed
994
560
def send_changedstate(self):
995
561
with self.changedstate:
996
562
self.changedstate.notify_all()
997
563
998
564
def enable(self):
999
565
"""Start this client's checker and timeout hooks"""
1000
566
if getattr(self, "enabled", False):
1001
567
# Already enabled
1002
568
return
569
self.send_changedstate()
1003
570
self.expires = datetime.datetime.utcnow() + self.timeout
1004
571
self.enabled = True
1005
572
self.last_enabled = datetime.datetime.utcnow()
1006
573
self.init_checker()
1007
self.send_changedstate()
1008
574
1009
575
def disable(self, quiet=True):
1010
576
"""Disable this client."""
1011
577
if not getattr(self, "enabled", False):
1012
578
return False
1013
579
if not quiet:
580
self.send_changedstate()
581
if not quiet:
1014
582
logger.info("Disabling client %s", self.name)
1015
if getattr(self, "disable_initiator_tag", None) is not None:
1016
GLib.source_remove(self.disable_initiator_tag)
583
if getattr(self, "disable_initiator_tag", False):
584
gobject.source_remove(self.disable_initiator_tag)
1017
585
self.disable_initiator_tag = None
1018
586
self.expires = None
1019
if getattr(self, "checker_initiator_tag", None) is not None:
1020
GLib.source_remove(self.checker_initiator_tag)
587
if getattr(self, "checker_initiator_tag", False):
588
gobject.source_remove(self.checker_initiator_tag)
1021
589
self.checker_initiator_tag = None
1022
590
self.stop_checker()
1023
591
self.enabled = False
1024
if not quiet:
1025
self.send_changedstate()
1026
# 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
1027
593
return False
1028
594
1029
595
def __del__(self):
1030
596
self.disable()
1031
597
1032
598
def init_checker(self):
1033
599
# Schedule a new checker to be started an 'interval' from now,
1034
600
# and every interval from then on.
1035
if self.checker_initiator_tag is not None:
1036
GLib.source_remove(self.checker_initiator_tag)
1037
self.checker_initiator_tag = GLib.timeout_add(
1038
int(self.interval.total_seconds() * 1000),
1039
self.start_checker)
601
self.checker_initiator_tag = (gobject.timeout_add
602
(self.interval_milliseconds(),
603
self.start_checker))
1040
604
# Schedule a disable() when 'timeout' has passed
1041
if self.disable_initiator_tag is not None:
1042
GLib.source_remove(self.disable_initiator_tag)
1043
self.disable_initiator_tag = GLib.timeout_add(
1044
int(self.timeout.total_seconds() * 1000), self.disable)
605
self.disable_initiator_tag = (gobject.timeout_add
606
(self.timeout_milliseconds(),
607
self.disable))
1045
608
# Also start a new checker *right now*.
1046
609
self.start_checker()
1047
1048
def checker_callback(self, source, condition, connection,
1049
command):
610
611
def checker_callback(self, pid, condition, command):
1050
612
"""The checker has completed, so take appropriate actions."""
1051
# Read return code from connection (see call_pipe)
1052
returncode = connection.recv()
1053
connection.close()
1054
if self.checker is not None:
1055
self.checker.join()
1056
613
self.checker_callback_tag = None
1057
614
self.checker = None
1058
1059
if returncode >= 0:
1060
self.last_checker_status = returncode
1061
self.last_checker_signal = None
615
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
1062
617
if self.last_checker_status == 0:
1063
618
logger.info("Checker for %(name)s succeeded",
1064
619
vars(self))
1065
620
self.checked_ok()
1066
621
else:
1067
logger.info("Checker for %(name)s failed", vars(self))
622
logger.info("Checker for %(name)s failed",
623
vars(self))
1068
624
else:
1069
625
self.last_checker_status = -1
1070
self.last_checker_signal = -returncode
1071
626
logger.warning("Checker for %(name)s crashed?",
1072
627
vars(self))
1073
return False
1074
1075
def checked_ok(self):
1076
"""Assert that the client has been seen, alive and well."""
1077
self.last_checked_ok = datetime.datetime.utcnow()
1078
self.last_checker_status = 0
1079
self.last_checker_signal = None
1080
self.bump_timeout()
1081
1082
def bump_timeout(self, timeout=None):
1083
"""Bump up the timeout for this client."""
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
"""
1084
635
if timeout is None:
1085
636
timeout = self.timeout
637
self.last_checked_ok = datetime.datetime.utcnow()
1086
638
if self.disable_initiator_tag is not None:
1087
GLib.source_remove(self.disable_initiator_tag)
1088
self.disable_initiator_tag = None
639
gobject.source_remove(self.disable_initiator_tag)
1089
640
if getattr(self, "enabled", False):
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(timeout.total_seconds() * 1000), self.disable)
641
self.disable_initiator_tag = (gobject.timeout_add
642
(timedelta_to_milliseconds
643
(timeout), self.disable))
1092
644
self.expires = datetime.datetime.utcnow() + timeout
1093
645
1094
646
def need_approval(self):
1095
647
self.last_approval_request = datetime.datetime.utcnow()
1096
648
1097
649
def start_checker(self):
1098
650
"""Start a new checker subprocess if one is not running.
1099
651
1100
652
If a checker already exists, leave it running and do
1101
653
nothing."""
1102
654
# The reason for not killing a running checker is that if we
1103
# did that, and if a checker (for some reason) started running
1104
# slowly and taking more than 'interval' time, then the client
1105
# would inevitably timeout, since no checker would get a
1106
# chance to run to completion. If we instead leave running
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
1107
659
# checkers alone, the checker would have to take more time
1108
660
# than 'timeout' for the client to be disabled, which is as it
1109
661
# should be.
1110
1111
if self.checker is not None and not self.checker.is_alive():
1112
logger.warning("Checker was not alive; joining")
1113
self.checker.join()
1114
self.checker = None
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)
1115
676
# Start a new checker if needed
1116
677
if self.checker is None:
1117
# Escape attributes for the shell
1118
escaped_attrs = {
1119
attr: re.escape(str(getattr(self, attr)))
1120
for attr in self.runtime_expansions}
1121
678
try:
1122
command = self.checker_command % escaped_attrs
1123
except TypeError as error:
1124
logger.error('Could not format string "%s"',
1125
self.checker_command,
1126
exc_info=error)
1127
return True # Try again later
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
1128
697
self.current_checker_command = command
1129
logger.info("Starting checker %r for %s", command,
1130
self.name)
1131
# We don't need to redirect stdout and stderr, since
1132
# in normal mode, that is already done by daemon(),
1133
# and in debug mode we don't want to. (Stdin is
1134
# always replaced by /dev/null.)
1135
# The exception is when not debugging but nevertheless
1136
# running in the foreground; use the previously
1137
# created wnull.
1138
popen_args = {"close_fds": True,
1139
"shell": True,
1140
"cwd": "/"}
1141
if (not self.server_settings["debug"]
1142
and self.server_settings["foreground"]):
1143
popen_args.update({"stdout": wnull,
1144
"stderr": wnull})
1145
pipe = multiprocessing.Pipe(duplex=False)
1146
self.checker = multiprocessing.Process(
1147
target=call_pipe,
1148
args=(pipe[1], subprocess.call, command),
1149
kwargs=popen_args)
1150
self.checker.start()
1151
self.checker_callback_tag = GLib.io_add_watch(
1152
GLib.IOChannel.unix_new(pipe[0].fileno()),
1153
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1154
self.checker_callback, pipe[0], command)
1155
# Re-run this periodically if run by GLib.timeout_add
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
1156
722
return True
1157
723
1158
724
def stop_checker(self):
1159
725
"""Force the checker process, if any, to stop."""
1160
726
if self.checker_callback_tag:
1161
GLib.source_remove(self.checker_callback_tag)
727
gobject.source_remove(self.checker_callback_tag)
1162
728
self.checker_callback_tag = None
1163
729
if getattr(self, "checker", None) is None:
1164
730
return
1165
731
logger.debug("Stopping checker for %(name)s", vars(self))
1166
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
1167
740
self.checker = None
1168
741
1169
742
1170
def dbus_service_property(dbus_interface,
1171
signature="v",
1172
access="readwrite",
1173
byte_arrays=False):
743
def dbus_service_property(dbus_interface, signature="v",
744
access="readwrite", byte_arrays=False):
1174
745
"""Decorators for marking methods of a DBusObjectWithProperties to
1175
746
become properties on the D-Bus.
1176
747
1177
748
The decorated method will be called with no arguments by "Get"
1178
749
and with one argument by "Set".
1179
750
1180
751
The parameters, where they are supported, are the same as
1181
752
dbus.service.method, except there is only "signature", since the
1182
753
type from Get() and the type sent to Set() is the same.
1185
756
# "Set" method, so we fail early here:
1186
757
if byte_arrays and signature != "ay":
1187
758
raise ValueError("Byte arrays not supported for non-'ay'"
1188
" signature {!r}".format(signature))
1189
759
" signature %r" % signature)
1190
760
def decorator(func):
1191
761
func._dbus_is_property = True
1192
762
func._dbus_interface = dbus_interface
1195
765
func._dbus_name = func.__name__
1196
766
if func._dbus_name.endswith("_dbus_property"):
1197
767
func._dbus_name = func._dbus_name[:-14]
1198
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1199
return func
1200
1201
return decorator
1202
1203
1204
def dbus_interface_annotations(dbus_interface):
1205
"""Decorator for marking functions returning interface annotations
1206
1207
Usage:
1208
1209
@dbus_interface_annotations("org.example.Interface")
1210
def _foo(self): # Function name does not matter
1211
return {"org.freedesktop.DBus.Deprecated": "true",
1212
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1213
"false"}
1214
"""
1215
1216
def decorator(func):
1217
func._dbus_is_interface = True
1218
func._dbus_interface = dbus_interface
1219
func._dbus_name = dbus_interface
1220
return func
1221
1222
return decorator
1223
1224
1225
def dbus_annotations(annotations):
1226
"""Decorator to annotate D-Bus methods, signals or properties
1227
Usage:
1228
1229
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property."
1231
"EmitsChangedSignal": "false"})
1232
@dbus_service_property("org.example.Interface", signature="b",
1233
access="r")
1234
def Property_dbus_property(self):
1235
return dbus.Boolean(False)
1236
1237
See also the DBusObjectWithAnnotations class.
1238
"""
1239
1240
def decorator(func):
1241
func._dbus_annotations = annotations
1242
return func
1243
768
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
769
return func
1244
770
return decorator
1245
771
1246
772
1247
773
class DBusPropertyException(dbus.exceptions.DBusException):
1248
774
"""A base class for D-Bus property-related exceptions
1249
775
"""
1250
pass
776
def __unicode__(self):
777
return unicode(str(self))
1251
778
1252
779
1253
780
class DBusPropertyAccessException(DBusPropertyException):
1262
789
pass
1263
790
1264
791
1265
class DBusObjectWithAnnotations(dbus.service.Object):
1266
"""A D-Bus object with annotations.
1267
1268
Classes inheriting from this can use the dbus_annotations
1269
decorator to add annotations to methods or signals.
1270
"""
1271
1272
@staticmethod
1273
def _is_dbus_thing(thing):
1274
"""Returns a function testing if an attribute is a D-Bus thing
1275
1276
If called like _is_dbus_thing("method") it returns a function
1277
suitable for use as predicate to inspect.getmembers().
1278
"""
1279
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1280
False)
1281
1282
def _get_all_dbus_things(self, thing):
1283
"""Returns a generator of (name, attribute) pairs
1284
"""
1285
return ((getattr(athing.__get__(self), "_dbus_name", name),
1286
athing.__get__(self))
1287
for cls in self.__class__.__mro__
1288
for name, athing in
1289
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1290
1291
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1292
out_signature="s",
1293
path_keyword='object_path',
1294
connection_keyword='connection')
1295
def Introspect(self, object_path, connection):
1296
"""Overloading of standard D-Bus method.
1297
1298
Inserts annotation tags on methods and signals.
1299
"""
1300
xmlstring = dbus.service.Object.Introspect(self, object_path,
1301
connection)
1302
try:
1303
document = xml.dom.minidom.parseString(xmlstring)
1304
1305
for if_tag in document.getElementsByTagName("interface"):
1306
# Add annotation tags
1307
for typ in ("method", "signal"):
1308
for tag in if_tag.getElementsByTagName(typ):
1309
annots = dict()
1310
for name, prop in (self.
1311
_get_all_dbus_things(typ)):
1312
if (name == tag.getAttribute("name")
1313
and prop._dbus_interface
1314
== if_tag.getAttribute("name")):
1315
annots.update(getattr(
1316
prop, "_dbus_annotations", {}))
1317
for name, value in annots.items():
1318
ann_tag = document.createElement(
1319
"annotation")
1320
ann_tag.setAttribute("name", name)
1321
ann_tag.setAttribute("value", value)
1322
tag.appendChild(ann_tag)
1323
# Add interface annotation tags
1324
for annotation, value in dict(
1325
itertools.chain.from_iterable(
1326
annotations().items()
1327
for name, annotations
1328
in self._get_all_dbus_things("interface")
1329
if name == if_tag.getAttribute("name")
1330
)).items():
1331
ann_tag = document.createElement("annotation")
1332
ann_tag.setAttribute("name", annotation)
1333
ann_tag.setAttribute("value", value)
1334
if_tag.appendChild(ann_tag)
1335
# Fix argument name for the Introspect method itself
1336
if (if_tag.getAttribute("name")
1337
== dbus.INTROSPECTABLE_IFACE):
1338
for cn in if_tag.getElementsByTagName("method"):
1339
if cn.getAttribute("name") == "Introspect":
1340
for arg in cn.getElementsByTagName("arg"):
1341
if (arg.getAttribute("direction")
1342
== "out"):
1343
arg.setAttribute("name",
1344
"xml_data")
1345
xmlstring = document.toxml("utf-8")
1346
document.unlink()
1347
except (AttributeError, xml.dom.DOMException,
1348
xml.parsers.expat.ExpatError) as error:
1349
logger.error("Failed to override Introspection method",
1350
exc_info=error)
1351
return xmlstring
1352
1353
1354
class DBusObjectWithProperties(DBusObjectWithAnnotations):
792
class DBusObjectWithProperties(dbus.service.Object):
1355
793
"""A D-Bus object with properties.
1356
794
1357
795
Classes inheriting from this can use the dbus_service_property
1358
796
decorator to expose methods as D-Bus properties. It exposes the
1359
797
standard Get(), Set(), and GetAll() methods on the D-Bus.
1360
798
"""
1361
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
1362
812
def _get_dbus_property(self, interface_name, property_name):
1363
813
"""Returns a bound method if one exists which is a D-Bus
1364
814
property with the specified name and interface.
1365
815
"""
1366
for cls in self.__class__.__mro__:
1367
for name, value in inspect.getmembers(
1368
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)):
1369
819
if (value._dbus_name == property_name
1370
820
and value._dbus_interface == interface_name):
1371
821
return value.__get__(self)
1372
822
1373
823
# No such property
1374
raise DBusPropertyNotFound("{}:{}.{}".format(
1375
self.dbus_object_path, interface_name, property_name))
1376
1377
@classmethod
1378
def _get_all_interface_names(cls):
1379
"""Get a sequence of all interfaces supported by an object"""
1380
return (name for name in set(getattr(getattr(x, attr),
1381
"_dbus_interface", None)
1382
for x in (inspect.getmro(cls))
1383
for attr in dir(x))
1384
if name is not None)
1385
1386
@dbus.service.method(dbus.PROPERTIES_IFACE,
1387
in_signature="ss",
824
raise DBusPropertyNotFound(self.dbus_object_path + ":"
825
+ interface_name + "."
826
+ property_name)
827
828
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1388
829
out_signature="v")
1389
830
def Get(self, interface_name, property_name):
1390
831
"""Standard D-Bus property Get() method, see D-Bus standard.
1396
837
if not hasattr(value, "variant_level"):
1397
838
return value
1398
839
return type(value)(value, variant_level=value.variant_level+1)
1399
840
1400
841
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1401
842
def Set(self, interface_name, property_name, value):
1402
843
"""Standard D-Bus property Set() method, see D-Bus standard.
1408
849
# The byte_arrays option is not supported yet on
1409
850
# signatures other than "ay".
1410
851
if prop._dbus_signature != "ay":
1411
raise ValueError("Byte arrays not supported for non-"
1412
"'ay' signature {!r}"
1413
.format(prop._dbus_signature))
1414
value = dbus.ByteArray(bytes(value))
852
raise ValueError
853
value = dbus.ByteArray(''.join(unichr(byte)
854
for byte in value))
1415
855
prop(value)
1416
1417
@dbus.service.method(dbus.PROPERTIES_IFACE,
1418
in_signature="s",
856
857
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1419
858
out_signature="a{sv}")
1420
859
def GetAll(self, interface_name):
1421
860
"""Standard D-Bus property GetAll() method, see D-Bus
1422
861
standard.
1423
862
1424
863
Note: Will not include properties with access="write".
1425
864
"""
1426
865
properties = {}
1427
for name, prop in self._get_all_dbus_things("property"):
866
for name, prop in self._get_all_dbus_properties():
1428
867
if (interface_name
1429
868
and interface_name != prop._dbus_interface):
1430
869
# Interface non-empty but did not match
1436
875
if not hasattr(value, "variant_level"):
1437
876
properties[name] = value
1438
877
continue
1439
properties[name] = type(value)(
1440
value, variant_level=value.variant_level + 1)
878
properties[name] = type(value)(value, variant_level=
879
value.variant_level+1)
1441
880
return dbus.Dictionary(properties, signature="sv")
1442
1443
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1444
def PropertiesChanged(self, interface_name, changed_properties,
1445
invalidated_properties):
1446
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1447
standard.
1448
"""
1449
pass
1450
881
1451
882
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1452
883
out_signature="s",
1453
884
path_keyword='object_path',
1454
885
connection_keyword='connection')
1455
886
def Introspect(self, object_path, connection):
1456
"""Overloading of standard D-Bus method.
1457
1458
Inserts property tags and interface annotation tags.
887
"""Standard D-Bus method, overloaded to insert property tags.
1459
888
"""
1460
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1461
object_path,
1462
connection)
889
xmlstring = dbus.service.Object.Introspect(self, object_path,
890
connection)
1463
891
try:
1464
892
document = xml.dom.minidom.parseString(xmlstring)
1465
1466
893
def make_tag(document, name, prop):
1467
894
e = document.createElement("property")
1468
895
e.setAttribute("name", name)
1469
896
e.setAttribute("type", prop._dbus_signature)
1470
897
e.setAttribute("access", prop._dbus_access)
1471
898
return e
1472
1473
899
for if_tag in document.getElementsByTagName("interface"):
1474
# Add property tags
1475
900
for tag in (make_tag(document, name, prop)
1476
901
for name, prop
1477
in self._get_all_dbus_things("property")
902
in self._get_all_dbus_properties()
1478
903
if prop._dbus_interface
1479
904
== if_tag.getAttribute("name")):
1480
905
if_tag.appendChild(tag)
1481
# Add annotation tags for properties
1482
for tag in if_tag.getElementsByTagName("property"):
1483
annots = dict()
1484
for name, prop in self._get_all_dbus_things(
1485
"property"):
1486
if (name == tag.getAttribute("name")
1487
and prop._dbus_interface
1488
== if_tag.getAttribute("name")):
1489
annots.update(getattr(
1490
prop, "_dbus_annotations", {}))
1491
for name, value in annots.items():
1492
ann_tag = document.createElement(
1493
"annotation")
1494
ann_tag.setAttribute("name", name)
1495
ann_tag.setAttribute("value", value)
1496
tag.appendChild(ann_tag)
1497
906
# Add the names to the return values for the
1498
907
# "org.freedesktop.DBus.Properties" methods
1499
908
if (if_tag.getAttribute("name")
1514
923
except (AttributeError, xml.dom.DOMException,
1515
924
xml.parsers.expat.ExpatError) as error:
1516
925
logger.error("Failed to override Introspection method",
1517
exc_info=error)
1518
return xmlstring
1519
1520
1521
try:
1522
dbus.OBJECT_MANAGER_IFACE
1523
except AttributeError:
1524
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1525
1526
1527
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1528
"""A D-Bus object with an ObjectManager.
1529
1530
Classes inheriting from this exposes the standard
1531
GetManagedObjects call and the InterfacesAdded and
1532
InterfacesRemoved signals on the standard
1533
"org.freedesktop.DBus.ObjectManager" interface.
1534
1535
Note: No signals are sent automatically; they must be sent
1536
manually.
1537
"""
1538
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1539
out_signature="a{oa{sa{sv}}}")
1540
def GetManagedObjects(self):
1541
"""This function must be overridden"""
1542
raise NotImplementedError()
1543
1544
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1545
signature="oa{sa{sv}}")
1546
def InterfacesAdded(self, object_path, interfaces_and_properties):
1547
pass
1548
1549
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1550
def InterfacesRemoved(self, object_path, interfaces):
1551
pass
1552
1553
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1554
out_signature="s",
1555
path_keyword='object_path',
1556
connection_keyword='connection')
1557
def Introspect(self, object_path, connection):
1558
"""Overloading of standard D-Bus method.
1559
1560
Override return argument name of GetManagedObjects to be
1561
"objpath_interfaces_and_properties"
1562
"""
1563
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1564
object_path,
1565
connection)
1566
try:
1567
document = xml.dom.minidom.parseString(xmlstring)
1568
1569
for if_tag in document.getElementsByTagName("interface"):
1570
# Fix argument name for the GetManagedObjects method
1571
if (if_tag.getAttribute("name")
1572
== dbus.OBJECT_MANAGER_IFACE):
1573
for cn in if_tag.getElementsByTagName("method"):
1574
if (cn.getAttribute("name")
1575
== "GetManagedObjects"):
1576
for arg in cn.getElementsByTagName("arg"):
1577
if (arg.getAttribute("direction")
1578
== "out"):
1579
arg.setAttribute(
1580
"name",
1581
"objpath_interfaces"
1582
"_and_properties")
1583
xmlstring = document.toxml("utf-8")
1584
document.unlink()
1585
except (AttributeError, xml.dom.DOMException,
1586
xml.parsers.expat.ExpatError) as error:
1587
logger.error("Failed to override Introspection method",
1588
exc_info=error)
1589
return xmlstring
1590
1591
1592
def datetime_to_dbus(dt, variant_level=0):
926
error)
927
return xmlstring
928
929
930
def datetime_to_dbus (dt, variant_level=0):
1593
931
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1594
932
if dt is None:
1595
return dbus.String("", variant_level=variant_level)
1596
return dbus.String(dt.isoformat(), variant_level=variant_level)
1597
1598
1599
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1600
"""A class decorator; applied to a subclass of
1601
dbus.service.Object, it will add alternate D-Bus attributes with
1602
interface names according to the "alt_interface_names" mapping.
1603
Usage:
1604
1605
@alternate_dbus_interfaces({"org.example.Interface":
1606
"net.example.AlternateInterface"})
1607
class SampleDBusObject(dbus.service.Object):
1608
@dbus.service.method("org.example.Interface")
1609
def SampleDBusMethod():
1610
pass
1611
1612
The above "SampleDBusMethod" on "SampleDBusObject" will be
1613
reachable via two interfaces: "org.example.Interface" and
1614
"net.example.AlternateInterface", the latter of which will have
1615
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1616
"true", unless "deprecate" is passed with a False value.
1617
1618
This works for methods and signals, and also for D-Bus properties
1619
(from DBusObjectWithProperties) and interfaces (from the
1620
dbus_interface_annotations decorator).
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.
1621
942
"""
1622
1623
def wrapper(cls):
1624
for orig_interface_name, alt_interface_name in (
1625
alt_interface_names.items()):
1626
attr = {}
1627
interface_names = set()
1628
# Go though all attributes of the class
1629
for attrname, attribute in inspect.getmembers(cls):
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):
1630
950
# Ignore non-D-Bus attributes, and D-Bus attributes
1631
951
# with the wrong interface name
1632
952
if (not hasattr(attribute, "_dbus_interface")
1633
or not attribute._dbus_interface.startswith(
1634
orig_interface_name)):
953
or not attribute._dbus_interface
954
.startswith("se.recompile.Mandos")):
1635
955
continue
1636
956
# Create an alternate D-Bus interface name based on
1637
957
# the current name
1638
alt_interface = attribute._dbus_interface.replace(
1639
orig_interface_name, alt_interface_name)
1640
interface_names.add(alt_interface)
958
alt_interface = (attribute._dbus_interface
959
.replace("se.recompile.Mandos",
960
"se.bsnet.fukt.Mandos"))
1641
961
# Is this a D-Bus signal?
1642
962
if getattr(attribute, "_dbus_is_signal", False):
1643
# Extract the original non-method undecorated
1644
# function by black magic
1645
if sys.version_info.major == 2:
1646
nonmethod_func = (dict(
963
# Extract the original non-method function by
964
# black magic
965
nonmethod_func = (dict(
1647
966
zip(attribute.func_code.co_freevars,
1648
attribute.__closure__))
1649
["func"].cell_contents)
1650
else:
1651
nonmethod_func = (dict(
1652
zip(attribute.__code__.co_freevars,
1653
attribute.__closure__))
1654
["func"].cell_contents)
967
attribute.__closure__))["func"]
968
.cell_contents)
1655
969
# Create a new, but exactly alike, function
1656
970
# object, and decorate it to be a new D-Bus signal
1657
971
# with the alternate D-Bus interface name
1658
new_function = copy_function(nonmethod_func)
1659
new_function = (dbus.service.signal(
1660
alt_interface,
1661
attribute._dbus_signature)(new_function))
1662
# Copy annotations, if any
1663
try:
1664
new_function._dbus_annotations = dict(
1665
attribute._dbus_annotations)
1666
except AttributeError:
1667
pass
1668
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)))
1669
981
# Define a creator of a function to call both the
1670
# original and alternate functions, so both the
1671
# original and alternate signals gets sent when
1672
# the function is called
982
# old and new functions, so both the old and new
983
# signals gets sent when the function is called
1673
984
def fixscope(func1, func2):
1674
985
"""This function is a scope container to pass
1675
986
func1 and func2 to the "call_both" function
1676
987
outside of its arguments"""
1677
1678
@functools.wraps(func2)
1679
988
def call_both(*args, **kwargs):
1680
989
"""This function will emit two D-Bus
1681
990
signals by calling func1 and func2"""
1682
991
func1(*args, **kwargs)
1683
992
func2(*args, **kwargs)
1684
# Make wrapper function look like a D-Bus
1685
# signal
1686
for name, attr in inspect.getmembers(func2):
1687
if name.startswith("_dbus_"):
1688
setattr(call_both, name, attr)
1689
1690
993
return call_both
1691
994
# Create the "call_both" function and add it to
1692
995
# the class
1693
attr[attrname] = fixscope(attribute, new_function)
996
attr[attrname] = fixscope(attribute,
997
new_function)
1694
998
# Is this a D-Bus method?
1695
999
elif getattr(attribute, "_dbus_is_method", False):
1696
1000
# Create a new, but exactly alike, function
1697
1001
# object. Decorate it to be a new D-Bus method
1698
1002
# with the alternate D-Bus interface name. Add it
1699
1003
# to the class.
1700
attr[attrname] = (
1701
dbus.service.method(
1702
alt_interface,
1703
attribute._dbus_in_signature,
1704
attribute._dbus_out_signature)
1705
(copy_function(attribute)))
1706
# Copy annotations, if any
1707
try:
1708
attr[attrname]._dbus_annotations = dict(
1709
attribute._dbus_annotations)
1710
except AttributeError:
1711
pass
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)))
1712
1014
# Is this a D-Bus property?
1713
1015
elif getattr(attribute, "_dbus_is_property", False):
1714
1016
# Create a new, but exactly alike, function
1715
1017
# object, and decorate it to be a new D-Bus
1716
1018
# property with the alternate D-Bus interface
1717
1019
# name. Add it to the class.
1718
attr[attrname] = (dbus_service_property(
1719
alt_interface, attribute._dbus_signature,
1720
attribute._dbus_access,
1721
attribute._dbus_get_args_options
1722
["byte_arrays"])
1723
(copy_function(attribute)))
1724
# Copy annotations, if any
1725
try:
1726
attr[attrname]._dbus_annotations = dict(
1727
attribute._dbus_annotations)
1728
except AttributeError:
1729
pass
1730
# Is this a D-Bus interface?
1731
elif getattr(attribute, "_dbus_is_interface", False):
1732
# Create a new, but exactly alike, function
1733
# object. Decorate it to be a new D-Bus interface
1734
# with the alternate D-Bus interface name. Add it
1735
# to the class.
1736
attr[attrname] = (
1737
dbus_interface_annotations(alt_interface)
1738
(copy_function(attribute)))
1739
if deprecate:
1740
# Deprecate all alternate interfaces
1741
iname = "_AlternateDBusNames_interface_annotation{}"
1742
for interface_name in interface_names:
1743
1744
@dbus_interface_annotations(interface_name)
1745
def func(self):
1746
return {"org.freedesktop.DBus.Deprecated":
1747
"true"}
1748
# Find an unused name
1749
for aname in (iname.format(i)
1750
for i in itertools.count()):
1751
if aname not in attr:
1752
attr[aname] = func
1753
break
1754
if interface_names:
1755
# Replace the class with a new subclass of it with
1756
# methods, signals, etc. as created above.
1757
if sys.version_info.major == 2:
1758
cls = type(b"{}Alternate".format(cls.__name__),
1759
(cls, ), attr)
1760
else:
1761
cls = type("{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
return cls
1764
1765
return wrapper
1766
1767
1768
@alternate_dbus_interfaces({"se.recompile.Mandos":
1769
"se.bsnet.fukt.Mandos"})
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
1770
1036
class ClientDBus(Client, DBusObjectWithProperties):
1771
1037
"""A Client class using D-Bus
1772
1038
1773
1039
Attributes:
1774
1040
dbus_object_path: dbus.ObjectPath
1775
1041
bus: dbus.SystemBus()
1776
1042
"""
1777
1043
1778
1044
runtime_expansions = (Client.runtime_expansions
1779
+ ("dbus_object_path", ))
1780
1781
_interface = "se.recompile.Mandos.Client"
1782
1045
+ ("dbus_object_path",))
1046
1783
1047
# dbus.service.Object doesn't use super(), so we can't either.
1784
1785
def __init__(self, bus=None, *args, **kwargs):
1048
1049
def __init__(self, bus = None, *args, **kwargs):
1786
1050
self.bus = bus
1787
1051
Client.__init__(self, *args, **kwargs)
1052
self._approvals_pending = 0
1053
1054
self._approvals_pending = 0
1788
1055
# Only now, when this client is initialized, can it show up on
1789
1056
# the D-Bus
1790
client_object_name = str(self.name).translate(
1057
client_object_name = unicode(self.name).translate(
1791
1058
{ord("."): ord("_"),
1792
1059
ord("-"): ord("_")})
1793
self.dbus_object_path = dbus.ObjectPath(
1794
"/clients/" + client_object_name)
1060
self.dbus_object_path = (dbus.ObjectPath
1061
("/clients/" + client_object_name))
1795
1062
DBusObjectWithProperties.__init__(self, self.bus,
1796
1063
self.dbus_object_path)
1797
1798
def notifychangeproperty(transform_func, dbus_name,
1799
type_func=lambda x: x,
1800
variant_level=1,
1801
invalidate_only=False,
1802
_interface=_interface):
1064
1065
def notifychangeproperty(transform_func,
1066
dbus_name, type_func=lambda x: x,
1067
variant_level=1):
1803
1068
""" Modify a variable so that it's a property which announces
1804
1069
its changes to DBus.
1805
1070
1806
1071
transform_fun: Function that takes a value and a variant_level
1807
1072
and transforms it to a D-Bus type.
1808
1073
dbus_name: D-Bus name of the variable
1810
1075
to the D-Bus. Default: no transform
1811
1076
variant_level: D-Bus variant level. Default: 1
1812
1077
"""
1813
attrname = "_{}".format(dbus_name)
1814
1078
attrname = "_{0}".format(dbus_name)
1815
1079
def setter(self, value):
1816
1080
if hasattr(self, "dbus_object_path"):
1817
1081
if (not hasattr(self, attrname) or
1818
1082
type_func(getattr(self, attrname, None))
1819
1083
!= type_func(value)):
1820
if invalidate_only:
1821
self.PropertiesChanged(
1822
_interface, dbus.Dictionary(),
1823
dbus.Array((dbus_name, )))
1824
else:
1825
dbus_value = transform_func(
1826
type_func(value),
1827
variant_level=variant_level)
1828
self.PropertyChanged(dbus.String(dbus_name),
1829
dbus_value)
1830
self.PropertiesChanged(
1831
_interface,
1832
dbus.Dictionary({dbus.String(dbus_name):
1833
dbus_value}),
1834
dbus.Array())
1084
dbus_value = transform_func(type_func(value),
1085
variant_level
1086
=variant_level)
1087
self.PropertyChanged(dbus.String(dbus_name),
1088
dbus_value)
1835
1089
setattr(self, attrname, value)
1836
1090
1837
1091
return property(lambda self: getattr(self, attrname), setter)
1838
1092
1093
1839
1094
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1840
1095
approvals_pending = notifychangeproperty(dbus.Boolean,
1841
1096
"ApprovalPending",
1842
type_func=bool)
1097
type_func = bool)
1843
1098
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1844
1099
last_enabled = notifychangeproperty(datetime_to_dbus,
1845
1100
"LastEnabled")
1846
checker = notifychangeproperty(
1847
dbus.Boolean, "CheckerRunning",
1848
type_func=lambda checker: checker is not None)
1101
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1102
type_func = lambda checker:
1103
checker is not None)
1849
1104
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1850
1105
"LastCheckedOK")
1851
last_checker_status = notifychangeproperty(dbus.Int16,
1852
"LastCheckerStatus")
1853
1106
last_approval_request = notifychangeproperty(
1854
1107
datetime_to_dbus, "LastApprovalRequest")
1855
1108
approved_by_default = notifychangeproperty(dbus.Boolean,
1856
1109
"ApprovedByDefault")
1857
approval_delay = notifychangeproperty(
1858
dbus.UInt64, "ApprovalDelay",
1859
type_func=lambda td: td.total_seconds() * 1000)
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1111
"ApprovalDelay",
1112
type_func =
1113
timedelta_to_milliseconds)
1860
1114
approval_duration = notifychangeproperty(
1861
1115
dbus.UInt64, "ApprovalDuration",
1862
type_func=lambda td: td.total_seconds() * 1000)
1116
type_func = timedelta_to_milliseconds)
1863
1117
host = notifychangeproperty(dbus.String, "Host")
1864
timeout = notifychangeproperty(
1865
dbus.UInt64, "Timeout",
1866
type_func=lambda td: td.total_seconds() * 1000)
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
type_func =
1120
timedelta_to_milliseconds)
1867
1121
extended_timeout = notifychangeproperty(
1868
1122
dbus.UInt64, "ExtendedTimeout",
1869
type_func=lambda td: td.total_seconds() * 1000)
1870
interval = notifychangeproperty(
1871
dbus.UInt64, "Interval",
1872
type_func=lambda td: td.total_seconds() * 1000)
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1125
"Interval",
1126
type_func =
1127
timedelta_to_milliseconds)
1873
1128
checker_command = notifychangeproperty(dbus.String, "Checker")
1874
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1875
invalidate_only=True)
1876
1129
1877
1130
del notifychangeproperty
1878
1131
1879
1132
def __del__(self, *args, **kwargs):
1880
1133
try:
1881
1134
self.remove_from_connection()
1884
1137
if hasattr(DBusObjectWithProperties, "__del__"):
1885
1138
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1886
1139
Client.__del__(self, *args, **kwargs)
1887
1888
def checker_callback(self, source, condition,
1889
connection, command, *args, **kwargs):
1890
ret = Client.checker_callback(self, source, condition,
1891
connection, command, *args,
1892
**kwargs)
1893
exitstatus = self.last_checker_status
1894
if exitstatus >= 0:
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)
1895
1147
# Emit D-Bus signal
1896
1148
self.CheckerCompleted(dbus.Int16(exitstatus),
1897
# This is specific to GNU libC
1898
dbus.Int64(exitstatus << 8),
1149
dbus.Int64(condition),
1899
1150
dbus.String(command))
1900
1151
else:
1901
1152
# Emit D-Bus signal
1902
1153
self.CheckerCompleted(dbus.Int16(-1),
1903
dbus.Int64(
1904
# This is specific to GNU libC
1905
(exitstatus << 8)
1906
| self.last_checker_signal),
1154
dbus.Int64(condition),
1907
1155
dbus.String(command))
1908
return ret
1909
1156
1157
return Client.checker_callback(self, pid, condition, command,
1158
*args, **kwargs)
1159
1910
1160
def start_checker(self, *args, **kwargs):
1911
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
1912
1166
r = Client.start_checker(self, *args, **kwargs)
1913
1167
# Only if new checker process was started
1914
1168
if (self.checker is not None
1916
1170
# Emit D-Bus signal
1917
1171
self.CheckerStarted(self.current_checker_command)
1918
1172
return r
1919
1173
1920
1174
def _reset_approved(self):
1921
1175
self.approved = None
1922
1176
return False
1923
1177
1924
1178
def approve(self, value=True):
1179
self.send_changedstate()
1925
1180
self.approved = value
1926
GLib.timeout_add(int(self.approval_duration.total_seconds()
1927
* 1000), self._reset_approved)
1928
self.send_changedstate()
1929
1930
# D-Bus methods, signals & properties
1931
1932
# Interfaces
1933
1934
# Signals
1935
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
1936
1191
# CheckerCompleted - signal
1937
1192
@dbus.service.signal(_interface, signature="nxs")
1938
1193
def CheckerCompleted(self, exitcode, waitstatus, command):
1939
1194
"D-Bus signal"
1940
1195
pass
1941
1196
1942
1197
# CheckerStarted - signal
1943
1198
@dbus.service.signal(_interface, signature="s")
1944
1199
def CheckerStarted(self, command):
1945
1200
"D-Bus signal"
1946
1201
pass
1947
1202
1948
1203
# PropertyChanged - signal
1949
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1950
1204
@dbus.service.signal(_interface, signature="sv")
1951
1205
def PropertyChanged(self, property, value):
1952
1206
"D-Bus signal"
1953
1207
pass
1954
1208
1955
1209
# GotSecret - signal
1956
1210
@dbus.service.signal(_interface)
1957
1211
def GotSecret(self):
1960
1214
server to mandos-client
1961
1215
"""
1962
1216
pass
1963
1217
1964
1218
# Rejected - signal
1965
1219
@dbus.service.signal(_interface, signature="s")
1966
1220
def Rejected(self, reason):
1967
1221
"D-Bus signal"
1968
1222
pass
1969
1223
1970
1224
# NeedApproval - signal
1971
1225
@dbus.service.signal(_interface, signature="tb")
1972
1226
def NeedApproval(self, timeout, default):
1973
1227
"D-Bus signal"
1974
1228
return self.need_approval()
1975
1976
# Methods
1977
1229
1230
# NeRwequest - signal
1231
@dbus.service.signal(_interface, signature="s")
1232
def NewRequest(self, ip):
1233
"""D-Bus signal
1234
Is sent after a client request a password.
1235
"""
1236
pass
1237
1238
## Methods
1239
1978
1240
# Approve - method
1979
1241
@dbus.service.method(_interface, in_signature="b")
1980
1242
def Approve(self, value):
1981
1243
self.approve(value)
1982
1244
1983
1245
# CheckedOK - method
1984
1246
@dbus.service.method(_interface)
1985
1247
def CheckedOK(self):
1986
1248
self.checked_ok()
1987
1249
1988
1250
# Enable - method
1989
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1990
1251
@dbus.service.method(_interface)
1991
1252
def Enable(self):
1992
1253
"D-Bus method"
1993
1254
self.enable()
1994
1255
1995
1256
# StartChecker - method
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1997
1257
@dbus.service.method(_interface)
1998
1258
def StartChecker(self):
1999
1259
"D-Bus method"
2000
1260
self.start_checker()
2001
1261
2002
1262
# Disable - method
2003
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2004
1263
@dbus.service.method(_interface)
2005
1264
def Disable(self):
2006
1265
"D-Bus method"
2007
1266
self.disable()
2008
1267
2009
1268
# StopChecker - method
2010
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2011
1269
@dbus.service.method(_interface)
2012
1270
def StopChecker(self):
2013
1271
self.stop_checker()
2014
2015
# Properties
2016
1272
1273
## Properties
1274
2017
1275
# ApprovalPending - property
2018
1276
@dbus_service_property(_interface, signature="b", access="read")
2019
1277
def ApprovalPending_dbus_property(self):
2020
1278
return dbus.Boolean(bool(self.approvals_pending))
2021
1279
2022
1280
# ApprovedByDefault - property
2023
@dbus_service_property(_interface,
2024
signature="b",
1281
@dbus_service_property(_interface, signature="b",
2025
1282
access="readwrite")
2026
1283
def ApprovedByDefault_dbus_property(self, value=None):
2027
1284
if value is None: # get
2028
1285
return dbus.Boolean(self.approved_by_default)
2029
1286
self.approved_by_default = bool(value)
2030
1287
2031
1288
# ApprovalDelay - property
2032
@dbus_service_property(_interface,
2033
signature="t",
1289
@dbus_service_property(_interface, signature="t",
2034
1290
access="readwrite")
2035
1291
def ApprovalDelay_dbus_property(self, value=None):
2036
1292
if value is None: # get
2037
return dbus.UInt64(self.approval_delay.total_seconds()
2038
* 1000)
1293
return dbus.UInt64(self.approval_delay_milliseconds())
2039
1294
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2040
1295
2041
1296
# ApprovalDuration - property
2042
@dbus_service_property(_interface,
2043
signature="t",
1297
@dbus_service_property(_interface, signature="t",
2044
1298
access="readwrite")
2045
1299
def ApprovalDuration_dbus_property(self, value=None):
2046
1300
if value is None: # get
2047
return dbus.UInt64(self.approval_duration.total_seconds()
2048
* 1000)
1301
return dbus.UInt64(timedelta_to_milliseconds(
1302
self.approval_duration))
2049
1303
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2050
1304
2051
1305
# Name - property
2052
@dbus_annotations(
2053
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2054
1306
@dbus_service_property(_interface, signature="s", access="read")
2055
1307
def Name_dbus_property(self):
2056
1308
return dbus.String(self.name)
2057
2058
# KeyID - property
2059
@dbus_annotations(
2060
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2061
@dbus_service_property(_interface, signature="s", access="read")
2062
def KeyID_dbus_property(self):
2063
return dbus.String(self.key_id)
2064
1309
2065
1310
# Fingerprint - property
2066
@dbus_annotations(
2067
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2068
1311
@dbus_service_property(_interface, signature="s", access="read")
2069
1312
def Fingerprint_dbus_property(self):
2070
1313
return dbus.String(self.fingerprint)
2071
1314
2072
1315
# Host - property
2073
@dbus_service_property(_interface,
2074
signature="s",
1316
@dbus_service_property(_interface, signature="s",
2075
1317
access="readwrite")
2076
1318
def Host_dbus_property(self, value=None):
2077
1319
if value is None: # get
2078
1320
return dbus.String(self.host)
2079
self.host = str(value)
2080
1321
self.host = unicode(value)
1322
2081
1323
# Created - property
2082
@dbus_annotations(
2083
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2084
1324
@dbus_service_property(_interface, signature="s", access="read")
2085
1325
def Created_dbus_property(self):
2086
1326
return datetime_to_dbus(self.created)
2087
1327
2088
1328
# LastEnabled - property
2089
1329
@dbus_service_property(_interface, signature="s", access="read")
2090
1330
def LastEnabled_dbus_property(self):
2091
1331
return datetime_to_dbus(self.last_enabled)
2092
1332
2093
1333
# Enabled - property
2094
@dbus_service_property(_interface,
2095
signature="b",
1334
@dbus_service_property(_interface, signature="b",
2096
1335
access="readwrite")
2097
1336
def Enabled_dbus_property(self, value=None):
2098
1337
if value is None: # get
2101
1340
self.enable()
2102
1341
else:
2103
1342
self.disable()
2104
1343
2105
1344
# LastCheckedOK - property
2106
@dbus_service_property(_interface,
2107
signature="s",
1345
@dbus_service_property(_interface, signature="s",
2108
1346
access="readwrite")
2109
1347
def LastCheckedOK_dbus_property(self, value=None):
2110
1348
if value is not None:
2111
1349
self.checked_ok()
2112
1350
return
2113
1351
return datetime_to_dbus(self.last_checked_ok)
2114
2115
# LastCheckerStatus - property
2116
@dbus_service_property(_interface, signature="n", access="read")
2117
def LastCheckerStatus_dbus_property(self):
2118
return dbus.Int16(self.last_checker_status)
2119
1352
2120
1353
# Expires - property
2121
1354
@dbus_service_property(_interface, signature="s", access="read")
2122
1355
def Expires_dbus_property(self):
2123
1356
return datetime_to_dbus(self.expires)
2124
1357
2125
1358
# LastApprovalRequest - property
2126
1359
@dbus_service_property(_interface, signature="s", access="read")
2127
1360
def LastApprovalRequest_dbus_property(self):
2128
1361
return datetime_to_dbus(self.last_approval_request)
2129
1362
2130
1363
# Timeout - property
2131
@dbus_service_property(_interface,
2132
signature="t",
1364
@dbus_service_property(_interface, signature="t",
2133
1365
access="readwrite")
2134
1366
def Timeout_dbus_property(self, value=None):
2135
1367
if value is None: # get
2136
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2137
old_timeout = self.timeout
1368
return dbus.UInt64(self.timeout_milliseconds())
2138
1369
self.timeout = datetime.timedelta(0, 0, 0, value)
2139
# Reschedule disabling
1370
# Reschedule timeout
2140
1371
if self.enabled:
2141
1372
now = datetime.datetime.utcnow()
2142
self.expires += self.timeout - old_timeout
2143
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:
2144
1376
# The timeout has passed
2145
1377
self.disable()
2146
1378
else:
1379
self.expires = (now +
1380
datetime.timedelta(milliseconds =
1381
time_to_die))
2147
1382
if (getattr(self, "disable_initiator_tag", None)
2148
1383
is None):
2149
1384
return
2150
GLib.source_remove(self.disable_initiator_tag)
2151
self.disable_initiator_tag = GLib.timeout_add(
2152
int((self.expires - now).total_seconds() * 1000),
2153
self.disable)
2154
1385
gobject.source_remove(self.disable_initiator_tag)
1386
self.disable_initiator_tag = (gobject.timeout_add
1387
(time_to_die,
1388
self.disable))
1389
2155
1390
# ExtendedTimeout - property
2156
@dbus_service_property(_interface,
2157
signature="t",
1391
@dbus_service_property(_interface, signature="t",
2158
1392
access="readwrite")
2159
1393
def ExtendedTimeout_dbus_property(self, value=None):
2160
1394
if value is None: # get
2161
return dbus.UInt64(self.extended_timeout.total_seconds()
2162
* 1000)
1395
return dbus.UInt64(self.extended_timeout_milliseconds())
2163
1396
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2164
1397
2165
1398
# Interval - property
2166
@dbus_service_property(_interface,
2167
signature="t",
1399
@dbus_service_property(_interface, signature="t",
2168
1400
access="readwrite")
2169
1401
def Interval_dbus_property(self, value=None):
2170
1402
if value is None: # get
2171
return dbus.UInt64(self.interval.total_seconds() * 1000)
1403
return dbus.UInt64(self.interval_milliseconds())
2172
1404
self.interval = datetime.timedelta(0, 0, 0, value)
2173
1405
if getattr(self, "checker_initiator_tag", None) is None:
2174
1406
return
2175
1407
if self.enabled:
2176
1408
# Reschedule checker run
2177
GLib.source_remove(self.checker_initiator_tag)
2178
self.checker_initiator_tag = GLib.timeout_add(
2179
value, self.start_checker)
2180
self.start_checker() # Start one now, too
2181
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
2182
1414
# Checker - property
2183
@dbus_service_property(_interface,
2184
signature="s",
1415
@dbus_service_property(_interface, signature="s",
2185
1416
access="readwrite")
2186
1417
def Checker_dbus_property(self, value=None):
2187
1418
if value is None: # get
2188
1419
return dbus.String(self.checker_command)
2189
self.checker_command = str(value)
2190
1420
self.checker_command = unicode(value)
1421
2191
1422
# CheckerRunning - property
2192
@dbus_service_property(_interface,
2193
signature="b",
1423
@dbus_service_property(_interface, signature="b",
2194
1424
access="readwrite")
2195
1425
def CheckerRunning_dbus_property(self, value=None):
2196
1426
if value is None: # get
2199
1429
self.start_checker()
2200
1430
else:
2201
1431
self.stop_checker()
2202
1432
2203
1433
# ObjectPath - property
2204
@dbus_annotations(
2205
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2206
"org.freedesktop.DBus.Deprecated": "true"})
2207
1434
@dbus_service_property(_interface, signature="o", access="read")
2208
1435
def ObjectPath_dbus_property(self):
2209
return self.dbus_object_path # is already a dbus.ObjectPath
2210
1436
return self.dbus_object_path # is already a dbus.ObjectPath
1437
2211
1438
# Secret = property
2212
@dbus_annotations(
2213
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2214
"invalidates"})
2215
@dbus_service_property(_interface,
2216
signature="ay",
2217
access="write",
2218
byte_arrays=True)
1439
@dbus_service_property(_interface, signature="ay",
1440
access="write", byte_arrays=True)
2219
1441
def Secret_dbus_property(self, value):
2220
self.secret = bytes(value)
2221
1442
self.secret = str(value)
1443
2222
1444
del _interface
2223
1445
2224
1446
2225
class ProxyClient:
2226
def __init__(self, child_pipe, key_id, fpr, address):
1447
class ProxyClient(object):
1448
def __init__(self, child_pipe, fpr, address):
2227
1449
self._pipe = child_pipe
2228
self._pipe.send(('init', key_id, fpr, address))
1450
self._pipe.send(('init', fpr, address))
2229
1451
if not self._pipe.recv():
2230
raise KeyError(key_id or fpr)
2231
1452
raise KeyError()
1453
2232
1454
def __getattribute__(self, name):
2233
1455
if name == '_pipe':
2234
1456
return super(ProxyClient, self).__getattribute__(name)
2237
1459
if data[0] == 'data':
2238
1460
return data[1]
2239
1461
if data[0] == 'function':
2240
2241
1462
def func(*args, **kwargs):
2242
1463
self._pipe.send(('funcall', name, args, kwargs))
2243
1464
return self._pipe.recv()[1]
2244
2245
1465
return func
2246
1466
2247
1467
def __setattr__(self, name, value):
2248
1468
if name == '_pipe':
2249
1469
return super(ProxyClient, self).__setattr__(name, value)
2250
1470
self._pipe.send(('setattr', name, value))
2251
1471
2252
1472
1473
class ClientDBusTransitional(ClientDBus):
1474
__metaclass__ = AlternateDBusNamesMetaclass
1475
1476
2253
1477
class ClientHandler(socketserver.BaseRequestHandler, object):
2254
1478
"""A class to handle client connections.
2255
1479
2256
1480
Instantiated once for each connection to handle it.
2257
1481
Note: This will run in its own forked process."""
2258
1482
2259
1483
def handle(self):
2260
1484
with contextlib.closing(self.server.child_pipe) as child_pipe:
2261
1485
logger.info("TCP connection from: %s",
2262
str(self.client_address))
1486
unicode(self.client_address))
2263
1487
logger.debug("Pipe FD: %d",
2264
1488
self.server.child_pipe.fileno())
2265
2266
session = gnutls.ClientSession(self.request)
2267
2268
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2269
# "+AES-256-CBC", "+SHA1",
2270
# "+COMP-NULL", "+CTYPE-OPENPGP",
2271
# "+DHE-DSS"))
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"))
2272
1504
# Use a fallback default, since this MUST be set.
2273
1505
priority = self.server.gnutls_priority
2274
1506
if priority is None:
2275
1507
priority = "NORMAL"
2276
gnutls.priority_set_direct(session._c_object,
2277
priority.encode("utf-8"),
2278
None)
2279
1508
(gnutls.library.functions
1509
.gnutls_priority_set_direct(session._c_object,
1510
priority, None))
1511
2280
1512
# Start communication using the Mandos protocol
2281
1513
# Get protocol number
2282
1514
line = self.request.makefile().readline()
2283
1515
logger.debug("Protocol version: %r", line)
2284
1516
try:
2285
1517
if int(line.strip().split()[0]) > 1:
2286
raise RuntimeError(line)
1518
raise RuntimeError
2287
1519
except (ValueError, IndexError, RuntimeError) as error:
2288
1520
logger.error("Unknown protocol version: %s", error)
2289
1521
return
2290
1522
2291
1523
# Start GnuTLS connection
2292
1524
try:
2293
1525
session.handshake()
2294
except gnutls.Error as error:
1526
except gnutls.errors.GNUTLSError as error:
2295
1527
logger.warning("Handshake failed: %s", error)
2296
1528
# Do not run session.bye() here: the session is not
2297
1529
# established. Just abandon the request.
2298
1530
return
2299
1531
logger.debug("Handshake succeeded")
2300
1532
2301
1533
approval_required = False
2302
1534
try:
2303
if gnutls.has_rawpk:
2304
fpr = b""
2305
try:
2306
key_id = self.key_id(
2307
self.peer_certificate(session))
2308
except (TypeError, gnutls.Error) as error:
2309
logger.warning("Bad certificate: %s", error)
2310
return
2311
logger.debug("Key ID: %s", key_id)
2312
2313
else:
2314
key_id = b""
2315
try:
2316
fpr = self.fingerprint(
2317
self.peer_certificate(session))
2318
except (TypeError, gnutls.Error) as error:
2319
logger.warning("Bad certificate: %s", error)
2320
return
2321
logger.debug("Fingerprint: %s", fpr)
2322
2323
try:
2324
client = ProxyClient(child_pipe, key_id, fpr,
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,
2325
1546
self.client_address)
2326
1547
except KeyError:
2327
1548
return
2328
1549
1550
if self.server.use_dbus:
1551
# Emit D-Bus signal
1552
client.NewRequest(str(self.client_address))
1553
2329
1554
if client.approval_delay:
2330
1555
delay = client.approval_delay
2331
1556
client.approvals_pending += 1
2332
1557
approval_required = True
2333
1558
2334
1559
while True:
2335
1560
if not client.enabled:
2336
1561
logger.info("Client %s is disabled",
2337
client.name)
1562
client.name)
2338
1563
if self.server.use_dbus:
2339
1564
# Emit D-Bus signal
2340
1565
client.Rejected("Disabled")
2341
1566
return
2342
1567
2343
1568
if client.approved or not client.approval_delay:
2344
# We are approved or approval is disabled
1569
#We are approved or approval is disabled
2345
1570
break
2346
1571
elif client.approved is None:
2347
1572
logger.info("Client %s needs approval",
2349
1574
if self.server.use_dbus:
2350
1575
# Emit D-Bus signal
2351
1576
client.NeedApproval(
2352
client.approval_delay.total_seconds()
2353
* 1000, client.approved_by_default)
1577
client.approval_delay_milliseconds(),
1578
client.approved_by_default)
2354
1579
else:
2355
1580
logger.warning("Client %s was not approved",
2356
1581
client.name)
2358
1583
# Emit D-Bus signal
2359
1584
client.Rejected("Denied")
2360
1585
return
2361
2362
# wait until timeout or approved
1586
1587
#wait until timeout or approved
2363
1588
time = datetime.datetime.now()
2364
1589
client.changedstate.acquire()
2365
client.changedstate.wait(delay.total_seconds())
1590
(client.changedstate.wait
1591
(float(client.timedelta_to_milliseconds(delay)
1592
/ 1000)))
2366
1593
client.changedstate.release()
2367
1594
time2 = datetime.datetime.now()
2368
1595
if (time2 - time) >= delay:
2378
1605
break
2379
1606
else:
2380
1607
delay -= time2 - time
2381
2382
try:
2383
session.send(client.secret)
2384
except gnutls.Error as error:
2385
logger.warning("gnutls send failed",
2386
exc_info=error)
2387
return
2388
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
2389
1621
logger.info("Sending secret to %s", client.name)
2390
1622
# bump the timeout using extended_timeout
2391
client.bump_timeout(client.extended_timeout)
1623
client.checked_ok(client.extended_timeout)
2392
1624
if self.server.use_dbus:
2393
1625
# Emit D-Bus signal
2394
1626
client.GotSecret()
2395
1627
2396
1628
finally:
2397
1629
if approval_required:
2398
1630
client.approvals_pending -= 1
2399
1631
try:
2400
1632
session.bye()
2401
except gnutls.Error as error:
2402
logger.warning("GnuTLS bye failed",
2403
exc_info=error)
2404
1633
except gnutls.errors.GNUTLSError as error:
1634
logger.warning("GnuTLS bye failed")
1635
2405
1636
@staticmethod
2406
1637
def peer_certificate(session):
2407
"Return the peer's certificate as a bytestring"
2408
try:
2409
cert_type = gnutls.certificate_type_get2(session._c_object,
2410
gnutls.CTYPE_PEERS)
2411
except AttributeError:
2412
cert_type = gnutls.certificate_type_get(session._c_object)
2413
if gnutls.has_rawpk:
2414
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2415
else:
2416
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2417
# If not a valid certificate type...
2418
if cert_type not in valid_cert_types:
2419
logger.info("Cert type %r not in %r", cert_type,
2420
valid_cert_types)
2421
# ...return invalid data
2422
return b""
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
2423
1645
list_size = ctypes.c_uint(1)
2424
cert_list = (gnutls.certificate_get_peers
1646
cert_list = (gnutls.library.functions
1647
.gnutls_certificate_get_peers
2425
1648
(session._c_object, ctypes.byref(list_size)))
2426
1649
if not bool(cert_list) and list_size.value != 0:
2427
raise gnutls.Error("error getting peer certificate")
1650
raise gnutls.errors.GNUTLSError("error getting peer"
1651
" certificate")
2428
1652
if list_size.value == 0:
2429
1653
return None
2430
1654
cert = cert_list[0]
2431
1655
return ctypes.string_at(cert.data, cert.size)
2432
2433
@staticmethod
2434
def key_id(certificate):
2435
"Convert a certificate bytestring to a hexdigit key ID"
2436
# New GnuTLS "datum" with the public key
2437
datum = gnutls.datum_t(
2438
ctypes.cast(ctypes.c_char_p(certificate),
2439
ctypes.POINTER(ctypes.c_ubyte)),
2440
ctypes.c_uint(len(certificate)))
2441
# XXX all these need to be created in the gnutls "module"
2442
# New empty GnuTLS certificate
2443
pubkey = gnutls.pubkey_t()
2444
gnutls.pubkey_init(ctypes.byref(pubkey))
2445
# Import the raw public key into the certificate
2446
gnutls.pubkey_import(pubkey,
2447
ctypes.byref(datum),
2448
gnutls.X509_FMT_DER)
2449
# New buffer for the key ID
2450
buf = ctypes.create_string_buffer(32)
2451
buf_len = ctypes.c_size_t(len(buf))
2452
# Get the key ID from the raw public key into the buffer
2453
gnutls.pubkey_get_key_id(pubkey,
2454
gnutls.KEYID_USE_SHA256,
2455
ctypes.cast(ctypes.byref(buf),
2456
ctypes.POINTER(ctypes.c_ubyte)),
2457
ctypes.byref(buf_len))
2458
# Deinit the certificate
2459
gnutls.pubkey_deinit(pubkey)
2460
2461
# Convert the buffer to a Python bytestring
2462
key_id = ctypes.string_at(buf, buf_len.value)
2463
# Convert the bytestring to hexadecimal notation
2464
hex_key_id = binascii.hexlify(key_id).upper()
2465
return hex_key_id
2466
1656
2467
1657
@staticmethod
2468
1658
def fingerprint(openpgp):
2469
1659
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2470
1660
# New GnuTLS "datum" with the OpenPGP public key
2471
datum = gnutls.datum_t(
2472
ctypes.cast(ctypes.c_char_p(openpgp),
2473
ctypes.POINTER(ctypes.c_ubyte)),
2474
ctypes.c_uint(len(openpgp)))
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))))
2475
1666
# New empty GnuTLS certificate
2476
crt = gnutls.openpgp_crt_t()
2477
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)))
2478
1670
# Import the OpenPGP public key into the certificate
2479
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2480
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))
2481
1675
# Verify the self signature in the key
2482
1676
crtverify = ctypes.c_uint()
2483
gnutls.openpgp_crt_verify_self(crt, 0,
2484
ctypes.byref(crtverify))
1677
(gnutls.library.functions
1678
.gnutls_openpgp_crt_verify_self(crt, 0,
1679
ctypes.byref(crtverify)))
2485
1680
if crtverify.value != 0:
2486
gnutls.openpgp_crt_deinit(crt)
2487
raise gnutls.CertificateSecurityError(code
2488
=crtverify.value)
1681
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1682
raise (gnutls.errors.CertificateSecurityError
1683
("Verify failed"))
2489
1684
# New buffer for the fingerprint
2490
1685
buf = ctypes.create_string_buffer(20)
2491
1686
buf_len = ctypes.c_size_t()
2492
1687
# Get the fingerprint from the certificate into the buffer
2493
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2494
ctypes.byref(buf_len))
1688
(gnutls.library.functions
1689
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1690
ctypes.byref(buf_len)))
2495
1691
# Deinit the certificate
2496
gnutls.openpgp_crt_deinit(crt)
1692
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2497
1693
# Convert the buffer to a Python bytestring
2498
1694
fpr = ctypes.string_at(buf, buf_len.value)
2499
1695
# Convert the bytestring to hexadecimal notation
2501
1697
return hex_fpr
2502
1698
2503
1699
2504
class MultiprocessingMixIn:
1700
class MultiprocessingMixIn(object):
2505
1701
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2506
2507
1702
def sub_process_main(self, request, address):
2508
1703
try:
2509
1704
self.finish_request(request, address)
2510
1705
except Exception:
2511
1706
self.handle_error(request, address)
2512
1707
self.close_request(request)
2513
1708
2514
1709
def process_request(self, request, address):
2515
1710
"""Start a new process to process the request."""
2516
proc = multiprocessing.Process(target=self.sub_process_main,
2517
args=(request, address))
1711
proc = multiprocessing.Process(target = self.sub_process_main,
1712
args = (request,
1713
address))
2518
1714
proc.start()
2519
1715
return proc
2520
1716
2521
1717
2522
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1718
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2523
1719
""" adds a pipe to the MixIn """
2524
2525
1720
def process_request(self, request, client_address):
2526
1721
"""Overrides and wraps the original process_request().
2527
1722
2528
1723
This function creates a new pipe in self.pipe
2529
1724
"""
2530
1725
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2531
1726
2532
1727
proc = MultiprocessingMixIn.process_request(self, request,
2533
1728
client_address)
2534
1729
self.child_pipe.close()
2535
1730
self.add_pipe(parent_pipe, proc)
2536
1731
2537
1732
def add_pipe(self, parent_pipe, proc):
2538
1733
"""Dummy function; override as necessary"""
2539
raise NotImplementedError()
1734
raise NotImplementedError
2540
1735
2541
1736
2542
1737
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2543
socketserver.TCPServer):
1738
socketserver.TCPServer, object):
2544
1739
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2545
1740
2546
1741
Attributes:
2547
1742
enabled: Boolean; whether this server is activated yet
2548
1743
interface: None or a network interface name (string)
2549
1744
use_ipv6: Boolean; to use IPv6 or not
2550
1745
"""
2551
2552
1746
def __init__(self, server_address, RequestHandlerClass,
2553
interface=None,
2554
use_ipv6=True,
2555
socketfd=None):
2556
"""If socketfd is set, use that file descriptor instead of
2557
creating a new one with socket.socket().
2558
"""
1747
interface=None, use_ipv6=True):
2559
1748
self.interface = interface
2560
1749
if use_ipv6:
2561
1750
self.address_family = socket.AF_INET6
2562
if socketfd is not None:
2563
# Save the file descriptor
2564
self.socketfd = socketfd
2565
# Save the original socket.socket() function
2566
self.socket_socket = socket.socket
2567
2568
# To implement --socket, we monkey patch socket.socket.
2569
#
2570
# (When socketserver.TCPServer is a new-style class, we
2571
# could make self.socket into a property instead of monkey
2572
# patching socket.socket.)
2573
#
2574
# Create a one-time-only replacement for socket.socket()
2575
@functools.wraps(socket.socket)
2576
def socket_wrapper(*args, **kwargs):
2577
# Restore original function so subsequent calls are
2578
# not affected.
2579
socket.socket = self.socket_socket
2580
del self.socket_socket
2581
# This time only, return a new socket object from the
2582
# saved file descriptor.
2583
return socket.fromfd(self.socketfd, *args, **kwargs)
2584
# Replace socket.socket() function with wrapper
2585
socket.socket = socket_wrapper
2586
# The socketserver.TCPServer.__init__ will call
2587
# socket.socket(), which might be our replacement,
2588
# socket_wrapper(), if socketfd was set.
2589
1751
socketserver.TCPServer.__init__(self, server_address,
2590
1752
RequestHandlerClass)
2591
2592
1753
def server_bind(self):
2593
1754
"""This overrides the normal server_bind() function
2594
1755
to bind to an interface if one was specified, and also NOT to
2595
1756
bind to an address or port if they were not specified."""
2596
global SO_BINDTODEVICE
2597
1757
if self.interface is not None:
2598
1758
if SO_BINDTODEVICE is None:
2599
# Fall back to a hard-coded value which seems to be
2600
# common enough.
2601
logger.warning("SO_BINDTODEVICE not found, trying 25")
2602
SO_BINDTODEVICE = 25
2603
try:
2604
self.socket.setsockopt(
2605
socket.SOL_SOCKET, SO_BINDTODEVICE,
2606
(self.interface + "\0").encode("utf-8"))
2607
except socket.error as error:
2608
if error.errno == errno.EPERM:
2609
logger.error("No permission to bind to"
2610
" interface %s", self.interface)
2611
elif error.errno == errno.ENOPROTOOPT:
2612
logger.error("SO_BINDTODEVICE not available;"
2613
" cannot bind to interface %s",
2614
self.interface)
2615
elif error.errno == errno.ENODEV:
2616
logger.error("Interface %s does not exist,"
2617
" cannot bind", self.interface)
2618
else:
2619
raise
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
2620
1779
# Only bind(2) the socket if we really need to.
2621
1780
if self.server_address[0] or self.server_address[1]:
2622
if self.server_address[1]:
2623
self.allow_reuse_address = True
2624
1781
if not self.server_address[0]:
2625
1782
if self.address_family == socket.AF_INET6:
2626
any_address = "::" # in6addr_any
1783
any_address = "::" # in6addr_any
2627
1784
else:
2628
any_address = "0.0.0.0" # INADDR_ANY
1785
any_address = socket.INADDR_ANY
2629
1786
self.server_address = (any_address,
2630
1787
self.server_address[1])
2631
1788
elif not self.server_address[1]:
2632
self.server_address = (self.server_address[0], 0)
1789
self.server_address = (self.server_address[0],
1790
0)
2633
1791
# if self.interface:
2634
1792
# self.server_address = (self.server_address[0],
2635
1793
# 0, # port
2641
1799
2642
1800
class MandosServer(IPv6_TCPServer):
2643
1801
"""Mandos server.
2644
1802
2645
1803
Attributes:
2646
1804
clients: set of Client objects
2647
1805
gnutls_priority GnuTLS priority string
2648
1806
use_dbus: Boolean; to emit D-Bus signals or not
2649
2650
Assumes a GLib.MainLoop event loop.
1807
1808
Assumes a gobject.MainLoop event loop.
2651
1809
"""
2652
2653
1810
def __init__(self, server_address, RequestHandlerClass,
2654
interface=None,
2655
use_ipv6=True,
2656
clients=None,
2657
gnutls_priority=None,
2658
use_dbus=True,
2659
socketfd=None):
1811
interface=None, use_ipv6=True, clients=None,
1812
gnutls_priority=None, use_dbus=True):
2660
1813
self.enabled = False
2661
1814
self.clients = clients
2662
1815
if self.clients is None:
2665
1818
self.gnutls_priority = gnutls_priority
2666
1819
IPv6_TCPServer.__init__(self, server_address,
2667
1820
RequestHandlerClass,
2668
interface=interface,
2669
use_ipv6=use_ipv6,
2670
socketfd=socketfd)
2671
1821
interface = interface,
1822
use_ipv6 = use_ipv6)
2672
1823
def server_activate(self):
2673
1824
if self.enabled:
2674
1825
return socketserver.TCPServer.server_activate(self)
2675
1826
2676
1827
def enable(self):
2677
1828
self.enabled = True
2678
1829
2679
1830
def add_pipe(self, parent_pipe, proc):
2680
1831
# Call "handle_ipc" for both data and EOF events
2681
GLib.io_add_watch(
2682
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2683
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2684
functools.partial(self.handle_ipc,
2685
parent_pipe=parent_pipe,
2686
proc=proc))
2687
2688
def handle_ipc(self, source, condition,
2689
parent_pipe=None,
2690
proc=None,
2691
client_object=None):
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)
2692
1855
# error, or the other end of multiprocessing.Pipe has closed
2693
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1856
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2694
1857
# Wait for other process to exit
2695
1858
proc.join()
2696
1859
return False
2697
1860
2698
1861
# Read a request from the child
2699
1862
request = parent_pipe.recv()
2700
1863
command = request[0]
2701
1864
2702
1865
if command == 'init':
2703
key_id = request[1].decode("ascii")
2704
fpr = request[2].decode("ascii")
2705
address = request[3]
2706
2707
for c in self.clients.values():
2708
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2709
continue
2710
if key_id and c.key_id == key_id:
2711
client = c
2712
break
2713
if fpr and c.fingerprint == fpr:
1866
fpr = request[1]
1867
address = request[2]
1868
1869
for c in self.clients.itervalues():
1870
if c.fingerprint == fpr:
2714
1871
client = c
2715
1872
break
2716
1873
else:
2717
logger.info("Client not found for key ID: %s, address"
2718
": %s", key_id or fpr, address)
1874
logger.info("Client not found for fingerprint: %s, ad"
1875
"dress: %s", fpr, address)
2719
1876
if self.use_dbus:
2720
1877
# Emit D-Bus signal
2721
mandos_dbus_service.ClientNotFound(key_id or fpr,
1878
mandos_dbus_service.ClientNotFound(fpr,
2722
1879
address[0])
2723
1880
parent_pipe.send(False)
2724
1881
return False
2725
2726
GLib.io_add_watch(
2727
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2728
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2729
functools.partial(self.handle_ipc,
2730
parent_pipe=parent_pipe,
2731
proc=proc,
2732
client_object=client))
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))
2733
1891
parent_pipe.send(True)
2734
1892
# remove the old hook in favor of the new above hook on
2735
1893
# same fileno
2738
1896
funcname = request[1]
2739
1897
args = request[2]
2740
1898
kwargs = request[3]
2741
1899
2742
1900
parent_pipe.send(('data', getattr(client_object,
2743
1901
funcname)(*args,
2744
**kwargs)))
2745
1902
**kwargs)))
1903
2746
1904
if command == 'getattr':
2747
1905
attrname = request[1]
2748
if isinstance(client_object.__getattribute__(attrname),
2749
collections.Callable):
2750
parent_pipe.send(('function', ))
1906
if callable(client_object.__getattribute__(attrname)):
1907
parent_pipe.send(('function',))
2751
1908
else:
2752
parent_pipe.send((
2753
'data', client_object.__getattribute__(attrname)))
2754
1909
parent_pipe.send(('data', client_object
1910
.__getattribute__(attrname)))
1911
2755
1912
if command == 'setattr':
2756
1913
attrname = request[1]
2757
1914
value = request[2]
2758
1915
setattr(client_object, attrname, value)
2759
1916
2760
1917
return True
2761
1918
2762
1919
2763
def rfc3339_duration_to_delta(duration):
2764
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2765
2766
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2767
True
2768
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2769
True
2770
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2771
True
2772
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2773
True
2774
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2775
True
2776
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2777
True
2778
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2779
True
2780
"""
2781
2782
# Parsing an RFC 3339 duration with regular expressions is not
2783
# possible - there would have to be multiple places for the same
2784
# values, like seconds. The current code, while more esoteric, is
2785
# cleaner without depending on a parsing library. If Python had a
2786
# built-in library for parsing we would use it, but we'd like to
2787
# avoid excessive use of external libraries.
2788
2789
# New type for defining tokens, syntax, and semantics all-in-one
2790
Token = collections.namedtuple("Token", (
2791
"regexp", # To match token; if "value" is not None, must have
2792
# a "group" containing digits
2793
"value", # datetime.timedelta or None
2794
"followers")) # Tokens valid after this token
2795
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2796
# the "duration" ABNF definition in RFC 3339, Appendix A.
2797
token_end = Token(re.compile(r"$"), None, frozenset())
2798
token_second = Token(re.compile(r"(\d+)S"),
2799
datetime.timedelta(seconds=1),
2800
frozenset((token_end, )))
2801
token_minute = Token(re.compile(r"(\d+)M"),
2802
datetime.timedelta(minutes=1),
2803
frozenset((token_second, token_end)))
2804
token_hour = Token(re.compile(r"(\d+)H"),
2805
datetime.timedelta(hours=1),
2806
frozenset((token_minute, token_end)))
2807
token_time = Token(re.compile(r"T"),
2808
None,
2809
frozenset((token_hour, token_minute,
2810
token_second)))
2811
token_day = Token(re.compile(r"(\d+)D"),
2812
datetime.timedelta(days=1),
2813
frozenset((token_time, token_end)))
2814
token_month = Token(re.compile(r"(\d+)M"),
2815
datetime.timedelta(weeks=4),
2816
frozenset((token_day, token_end)))
2817
token_year = Token(re.compile(r"(\d+)Y"),
2818
datetime.timedelta(weeks=52),
2819
frozenset((token_month, token_end)))
2820
token_week = Token(re.compile(r"(\d+)W"),
2821
datetime.timedelta(weeks=1),
2822
frozenset((token_end, )))
2823
token_duration = Token(re.compile(r"P"), None,
2824
frozenset((token_year, token_month,
2825
token_day, token_time,
2826
token_week)))
2827
# Define starting values:
2828
# Value so far
2829
value = datetime.timedelta()
2830
found_token = None
2831
# Following valid tokens
2832
followers = frozenset((token_duration, ))
2833
# String left to parse
2834
s = duration
2835
# Loop until end token is found
2836
while found_token is not token_end:
2837
# Search for any currently valid tokens
2838
for token in followers:
2839
match = token.regexp.match(s)
2840
if match is not None:
2841
# Token found
2842
if token.value is not None:
2843
# Value found, parse digits
2844
factor = int(match.group(1), 10)
2845
# Add to value so far
2846
value += factor * token.value
2847
# Strip token from string
2848
s = token.regexp.sub("", s, 1)
2849
# Go to found token
2850
found_token = token
2851
# Set valid next tokens
2852
followers = found_token.followers
2853
break
2854
else:
2855
# No currently valid tokens were found
2856
raise ValueError("Invalid RFC 3339 duration: {!r}"
2857
.format(duration))
2858
# End token found
2859
return value
2860
2861
2862
1920
def string_to_delta(interval):
2863
1921
"""Parse a string and return a datetime.timedelta
2864
2865
>>> string_to_delta('7d') == datetime.timedelta(7)
2866
True
2867
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2868
True
2869
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2870
True
2871
>>> string_to_delta('24h') == datetime.timedelta(1)
2872
True
2873
>>> string_to_delta('1w') == datetime.timedelta(7)
2874
True
2875
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2876
True
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)
2877
1935
"""
2878
2879
try:
2880
return rfc3339_duration_to_delta(interval)
2881
except ValueError:
2882
pass
2883
2884
1936
timevalue = datetime.timedelta(0)
2885
1937
for s in interval.split():
2886
1938
try:
2887
suffix = s[-1]
1939
suffix = unicode(s[-1])
2888
1940
value = int(s[:-1])
2889
1941
if suffix == "d":
2890
1942
delta = datetime.timedelta(value)
2897
1949
elif suffix == "w":
2898
1950
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2899
1951
else:
2900
raise ValueError("Unknown suffix {!r}".format(suffix))
2901
except IndexError as e:
1952
raise ValueError("Unknown suffix %r" % suffix)
1953
except (ValueError, IndexError) as e:
2902
1954
raise ValueError(*(e.args))
2903
1955
timevalue += delta
2904
1956
return timevalue
2905
1957
2906
1958
2907
def daemon(nochdir=False, noclose=False):
1959
def daemon(nochdir = False, noclose = False):
2908
1960
"""See daemon(3). Standard BSD Unix function.
2909
1961
2910
1962
This should really exist as os.daemon, but it doesn't (yet)."""
2911
1963
if os.fork():
2912
1964
sys.exit()
2917
1969
sys.exit()
2918
1970
if not noclose:
2919
1971
# Close all standard open file descriptors
2920
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1972
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2921
1973
if not stat.S_ISCHR(os.fstat(null).st_mode):
2922
1974
raise OSError(errno.ENODEV,
2923
"{} not a character device"
2924
.format(os.devnull))
1975
"%s not a character device"
1976
% os.path.devnull)
2925
1977
os.dup2(null, sys.stdin.fileno())
2926
1978
os.dup2(null, sys.stdout.fileno())
2927
1979
os.dup2(null, sys.stderr.fileno())
2930
1982
2931
1983
2932
1984
def main():
2933
1985
2934
1986
##################################################################
2935
1987
# Parsing of options, both command line and config file
2936
1988
2937
1989
parser = argparse.ArgumentParser()
2938
1990
parser.add_argument("-v", "--version", action="version",
2939
version="%(prog)s {}".format(version),
1991
version = "%%(prog)s %s" % version,
2940
1992
help="show version number and exit")
2941
1993
parser.add_argument("-i", "--interface", metavar="IF",
2942
1994
help="Bind to interface IF")
2948
2000
help="Run self-test")
2949
2001
parser.add_argument("--debug", action="store_true",
2950
2002
help="Debug mode; run in foreground and log"
2951
" to terminal", default=None)
2003
" to terminal")
2952
2004
parser.add_argument("--debuglevel", metavar="LEVEL",
2953
2005
help="Debug level for stdout output")
2954
2006
parser.add_argument("--priority", help="GnuTLS"
2961
2013
" files")
2962
2014
parser.add_argument("--no-dbus", action="store_false",
2963
2015
dest="use_dbus", help="Do not provide D-Bus"
2964
" system bus interface", default=None)
2016
" system bus interface")
2965
2017
parser.add_argument("--no-ipv6", action="store_false",
2966
dest="use_ipv6", help="Do not use IPv6",
2967
default=None)
2018
dest="use_ipv6", help="Do not use IPv6")
2968
2019
parser.add_argument("--no-restore", action="store_false",
2969
2020
dest="restore", help="Do not restore stored"
2970
" state", default=None)
2971
parser.add_argument("--socket", type=int,
2972
help="Specify a file descriptor to a network"
2973
" socket to use instead of creating one")
2021
" state")
2974
2022
parser.add_argument("--statedir", metavar="DIR",
2975
2023
help="Directory to save/restore state in")
2976
parser.add_argument("--foreground", action="store_true",
2977
help="Run in foreground", default=None)
2978
parser.add_argument("--no-zeroconf", action="store_false",
2979
dest="zeroconf", help="Do not use Zeroconf",
2980
default=None)
2981
2024
2982
2025
options = parser.parse_args()
2983
2026
2027
if options.check:
2028
import doctest
2029
doctest.testmod()
2030
sys.exit()
2031
2984
2032
# Default values for config file for server-global settings
2985
if gnutls.has_rawpk:
2986
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2987
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2988
else:
2989
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2990
":+SIGN-DSA-SHA256")
2991
server_defaults = {"interface": "",
2992
"address": "",
2993
"port": "",
2994
"debug": "False",
2995
"priority": priority,
2996
"servicename": "Mandos",
2997
"use_dbus": "True",
2998
"use_ipv6": "True",
2999
"debuglevel": "",
3000
"restore": "True",
3001
"socket": "",
3002
"statedir": "/var/lib/mandos",
3003
"foreground": "False",
3004
"zeroconf": "True",
3005
}
3006
del priority
3007
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
3008
2047
# Parse config file for server-global settings
3009
server_config = configparser.ConfigParser(server_defaults)
2048
server_config = configparser.SafeConfigParser(server_defaults)
3010
2049
del server_defaults
3011
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3012
# 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
3013
2053
server_settings = server_config.defaults()
3014
2054
# Use the appropriate methods on the non-string config options
3015
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3016
"foreground", "zeroconf"):
2055
for option in ("debug", "use_dbus", "use_ipv6"):
3017
2056
server_settings[option] = server_config.getboolean("DEFAULT",
3018
2057
option)
3019
2058
if server_settings["port"]:
3020
2059
server_settings["port"] = server_config.getint("DEFAULT",
3021
2060
"port")
3022
if server_settings["socket"]:
3023
server_settings["socket"] = server_config.getint("DEFAULT",
3024
"socket")
3025
# Later, stdin will, and stdout and stderr might, be dup'ed
3026
# over with an opened os.devnull. But we don't want this to
3027
# happen with a supplied network socket.
3028
if 0 <= server_settings["socket"] <= 2:
3029
server_settings["socket"] = os.dup(server_settings
3030
["socket"])
3031
2061
del server_config
3032
2062
3033
2063
# Override the settings from the config file with command line
3034
2064
# options, if set.
3035
2065
for option in ("interface", "address", "port", "debug",
3036
"priority", "servicename", "configdir", "use_dbus",
3037
"use_ipv6", "debuglevel", "restore", "statedir",
3038
"socket", "foreground", "zeroconf"):
2066
"priority", "servicename", "configdir",
2067
"use_dbus", "use_ipv6", "debuglevel", "restore",
2068
"statedir"):
3039
2069
value = getattr(options, option)
3040
2070
if value is not None:
3041
2071
server_settings[option] = value
3042
2072
del options
3043
2073
# Force all strings to be unicode
3044
2074
for option in server_settings.keys():
3045
if isinstance(server_settings[option], bytes):
3046
server_settings[option] = (server_settings[option]
3047
.decode("utf-8"))
3048
# Force all boolean options to be boolean
3049
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3050
"foreground", "zeroconf"):
3051
server_settings[option] = bool(server_settings[option])
3052
# Debug implies foreground
3053
if server_settings["debug"]:
3054
server_settings["foreground"] = True
2075
if type(server_settings[option]) is str:
2076
server_settings[option] = unicode(server_settings[option])
3055
2077
# Now we have our good server settings in "server_settings"
3056
2078
3057
2079
##################################################################
3058
3059
if (not server_settings["zeroconf"]
3060
and not (server_settings["port"]
3061
or server_settings["socket"] != "")):
3062
parser.error("Needs port or socket to work without Zeroconf")
3063
2080
3064
2081
# For convenience
3065
2082
debug = server_settings["debug"]
3066
2083
debuglevel = server_settings["debuglevel"]
3068
2085
use_ipv6 = server_settings["use_ipv6"]
3069
2086
stored_state_path = os.path.join(server_settings["statedir"],
3070
2087
stored_state_file)
3071
foreground = server_settings["foreground"]
3072
zeroconf = server_settings["zeroconf"]
3073
2088
3074
2089
if debug:
3075
2090
initlogger(debug, logging.DEBUG)
3076
2091
else:
3079
2094
else:
3080
2095
level = getattr(logging, debuglevel.upper())
3081
2096
initlogger(debug, level)
3082
2097
3083
2098
if server_settings["servicename"] != "Mandos":
3084
syslogger.setFormatter(
3085
logging.Formatter('Mandos ({}) [%(process)d]:'
3086
' %(levelname)s: %(message)s'.format(
3087
server_settings["servicename"])))
3088
2099
syslogger.setFormatter(logging.Formatter
2100
('Mandos (%s) [%%(process)d]:'
2101
' %%(levelname)s: %%(message)s'
2102
% server_settings["servicename"]))
2103
3089
2104
# Parse config file with clients
3090
client_config = configparser.ConfigParser(Client.client_defaults)
2105
client_config = configparser.SafeConfigParser(Client
2106
.client_defaults)
3091
2107
client_config.read(os.path.join(server_settings["configdir"],
3092
2108
"clients.conf"))
3093
2109
3094
2110
global mandos_dbus_service
3095
2111
mandos_dbus_service = None
3096
3097
socketfd = None
3098
if server_settings["socket"] != "":
3099
socketfd = server_settings["socket"]
3100
tcp_server = MandosServer(
3101
(server_settings["address"], server_settings["port"]),
3102
ClientHandler,
3103
interface=(server_settings["interface"] or None),
3104
use_ipv6=use_ipv6,
3105
gnutls_priority=server_settings["priority"],
3106
use_dbus=use_dbus,
3107
socketfd=socketfd)
3108
if not foreground:
3109
pidfilename = "/run/mandos.pid"
3110
if not os.path.isdir("/run/."):
3111
pidfilename = "/var/run/mandos.pid"
3112
pidfile = None
3113
try:
3114
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3115
except IOError as e:
3116
logger.error("Could not open file %r", pidfilename,
3117
exc_info=e)
3118
3119
for name, group in (("_mandos", "_mandos"),
3120
("mandos", "mandos"),
3121
("nobody", "nogroup")):
3122
try:
3123
uid = pwd.getpwnam(name).pw_uid
3124
gid = pwd.getpwnam(group).pw_gid
3125
break
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
3126
2136
except KeyError:
3127
continue
3128
else:
3129
uid = 65534
3130
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
3131
2143
try:
3132
2144
os.setgid(gid)
3133
2145
os.setuid(uid)
3134
if debug:
3135
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3136
gid))
3137
2146
except OSError as error:
3138
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3139
.format(uid, gid, os.strerror(error.errno)))
3140
if error.errno != errno.EPERM:
3141
raise
3142
2147
if error[0] != errno.EPERM:
2148
raise error
2149
3143
2150
if debug:
3144
2151
# Enable all possible GnuTLS debugging
3145
2152
3146
2153
# "Use a log level over 10 to enable all debugging options."
3147
2154
# - GnuTLS manual
3148
gnutls.global_set_log_level(11)
3149
3150
@gnutls.log_func
2155
gnutls.library.functions.gnutls_global_set_log_level(11)
2156
2157
@gnutls.library.types.gnutls_log_func
3151
2158
def debug_gnutls(level, string):
3152
2159
logger.debug("GnuTLS: %s", string[:-1])
3153
3154
gnutls.global_set_log_function(debug_gnutls)
3155
2160
2161
(gnutls.library.functions
2162
.gnutls_global_set_log_function(debug_gnutls))
2163
3156
2164
# Redirect stdin so all checkers get /dev/null
3157
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2165
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3158
2166
os.dup2(null, sys.stdin.fileno())
3159
2167
if null > 2:
3160
2168
os.close(null)
3161
2169
3162
2170
# Need to fork before connecting to D-Bus
3163
if not foreground:
2171
if not debug:
3164
2172
# Close all input and output, do double fork, etc.
3165
2173
daemon()
3166
3167
if gi.version_info < (3, 10, 2):
3168
# multiprocessing will use threads, so before we use GLib we
3169
# need to inform GLib that threads will be used.
3170
GLib.threads_init()
3171
2174
2175
gobject.threads_init()
2176
3172
2177
global main_loop
3173
2178
# From the Avahi example code
3174
DBusGMainLoop(set_as_default=True)
3175
main_loop = GLib.MainLoop()
2179
DBusGMainLoop(set_as_default=True )
2180
main_loop = gobject.MainLoop()
3176
2181
bus = dbus.SystemBus()
3177
2182
# End of Avahi example code
3178
2183
if use_dbus:
3179
2184
try:
3180
2185
bus_name = dbus.service.BusName("se.recompile.Mandos",
3181
bus,
3182
do_not_queue=True)
3183
old_bus_name = dbus.service.BusName(
3184
"se.bsnet.fukt.Mandos", bus,
3185
do_not_queue=True)
3186
except dbus.exceptions.DBusException as e:
3187
logger.error("Disabling D-Bus:", exc_info=e)
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")
3188
2192
use_dbus = False
3189
2193
server_settings["use_dbus"] = False
3190
2194
tcp_server.use_dbus = False
3191
if zeroconf:
3192
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3193
service = AvahiServiceToSyslog(
3194
name=server_settings["servicename"],
3195
servicetype="_mandos._tcp",
3196
protocol=protocol,
3197
bus=bus)
3198
if server_settings["interface"]:
3199
service.interface = if_nametoindex(
3200
server_settings["interface"].encode("utf-8"))
3201
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
3202
2204
global multiprocessing_manager
3203
2205
multiprocessing_manager = multiprocessing.Manager()
3204
2206
3205
2207
client_class = Client
3206
2208
if use_dbus:
3207
client_class = functools.partial(ClientDBus, bus=bus)
3208
2209
client_class = functools.partial(ClientDBusTransitional,
2210
bus = bus)
2211
3209
2212
client_settings = Client.config_parser(client_config)
3210
2213
old_client_settings = {}
3211
2214
clients_data = {}
3212
3213
# This is used to redirect stdout and stderr for checker processes
3214
global wnull
3215
wnull = open(os.devnull, "w") # A writable /dev/null
3216
# Only used if server is running in foreground but not in debug
3217
# mode
3218
if debug or not foreground:
3219
wnull.close()
3220
2215
3221
2216
# Get client data and settings from last running state.
3222
2217
if server_settings["restore"]:
3223
2218
try:
3224
2219
with open(stored_state_path, "rb") as stored_state:
3225
if sys.version_info.major == 2:
3226
clients_data, old_client_settings = pickle.load(
3227
stored_state)
3228
else:
3229
bytes_clients_data, bytes_old_client_settings = (
3230
pickle.load(stored_state, encoding="bytes"))
3231
# Fix bytes to strings
3232
# clients_data
3233
# .keys()
3234
clients_data = {(key.decode("utf-8")
3235
if isinstance(key, bytes)
3236
else key): value
3237
for key, value in
3238
bytes_clients_data.items()}
3239
del bytes_clients_data
3240
for key in clients_data:
3241
value = {(k.decode("utf-8")
3242
if isinstance(k, bytes) else k): v
3243
for k, v in
3244
clients_data[key].items()}
3245
clients_data[key] = value
3246
# .client_structure
3247
value["client_structure"] = [
3248
(s.decode("utf-8")
3249
if isinstance(s, bytes)
3250
else s) for s in
3251
value["client_structure"]]
3252
# .name, .host, and .checker_command
3253
for k in ("name", "host", "checker_command"):
3254
if isinstance(value[k], bytes):
3255
value[k] = value[k].decode("utf-8")
3256
if "key_id" not in value:
3257
value["key_id"] = ""
3258
elif "fingerprint" not in value:
3259
value["fingerprint"] = ""
3260
# old_client_settings
3261
# .keys()
3262
old_client_settings = {
3263
(key.decode("utf-8")
3264
if isinstance(key, bytes)
3265
else key): value
3266
for key, value in
3267
bytes_old_client_settings.items()}
3268
del bytes_old_client_settings
3269
# .host and .checker_command
3270
for value in old_client_settings.values():
3271
for attribute in ("host", "checker_command"):
3272
if isinstance(value[attribute], bytes):
3273
value[attribute] = (value[attribute]
3274
.decode("utf-8"))
2220
clients_data, old_client_settings = (pickle.load
2221
(stored_state))
3275
2222
os.remove(stored_state_path)
3276
2223
except IOError as e:
3277
if e.errno == errno.ENOENT:
3278
logger.warning("Could not load persistent state:"
3279
" {}".format(os.strerror(e.errno)))
3280
else:
3281
logger.critical("Could not load persistent state:",
3282
exc_info=e)
2224
logger.warning("Could not load persistent state: {0}"
2225
.format(e))
2226
if e.errno != errno.ENOENT:
3283
2227
raise
3284
2228
except EOFError as e:
3285
2229
logger.warning("Could not load persistent state: "
3286
"EOFError:",
3287
exc_info=e)
3288
2230
"EOFError: {0}".format(e))
2231
3289
2232
with PGPEngine() as pgp:
3290
for client_name, client in clients_data.items():
3291
# Skip removed clients
3292
if client_name not in client_settings:
3293
continue
3294
2233
for client_name, client in clients_data.iteritems():
3295
2234
# Decide which value to use after restoring saved state.
3296
2235
# We have three different values: Old config file,
3297
2236
# new config file, and saved state.
3302
2241
# For each value in new config, check if it
3303
2242
# differs from the old config value (Except for
3304
2243
# the "secret" attribute)
3305
if (name != "secret"
3306
and (value !=
3307
old_client_settings[client_name][name])):
2244
if (name != "secret" and
2245
value != old_client_settings[client_name]
2246
[name]):
3308
2247
client[name] = value
3309
2248
except KeyError:
3310
2249
pass
3311
2250
3312
2251
# Clients who has passed its expire date can still be
3313
# enabled if its last checker was successful. A Client
3314
# whose checker succeeded before we stored its state is
3315
# assumed to have successfully run all checkers during
3316
# downtime.
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.
3317
2255
if client["enabled"]:
3318
2256
if datetime.datetime.utcnow() >= client["expires"]:
3319
2257
if not client["last_checked_ok"]:
3320
2258
logger.warning(
3321
"disabling client {} - Client never "
3322
"performed a successful checker".format(
3323
client_name))
2259
"disabling client {0} - Client never "
2260
"performed a successfull checker"
2261
.format(client["name"]))
3324
2262
client["enabled"] = False
3325
2263
elif client["last_checker_status"] != 0:
3326
2264
logger.warning(
3327
"disabling client {} - Client last"
3328
" checker failed with error code"
3329
" {}".format(
3330
client_name,
3331
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"]))
3332
2269
client["enabled"] = False
3333
2270
else:
3334
client["expires"] = (
3335
datetime.datetime.utcnow()
3336
+ client["timeout"])
2271
client["expires"] = (datetime.datetime
2272
.utcnow()
2273
+ client["timeout"])
3337
2274
logger.debug("Last checker succeeded,"
3338
" keeping {} enabled".format(
3339
client_name))
2275
" keeping {0} enabled"
2276
.format(client["name"]))
3340
2277
try:
3341
client["secret"] = pgp.decrypt(
3342
client["encrypted_secret"],
3343
client_settings[client_name]["secret"])
2278
client["secret"] = (
2279
pgp.decrypt(client["encrypted_secret"],
2280
client_settings[client_name]
2281
["secret"]))
3344
2282
except PGPError:
3345
2283
# If decryption fails, we use secret from new settings
3346
logger.debug("Failed to decrypt {} old secret".format(
3347
client_name))
3348
client["secret"] = (client_settings[client_name]
3349
["secret"])
2284
logger.debug("Failed to decrypt {0} old secret"
2285
.format(client_name))
2286
client["secret"] = (
2287
client_settings[client_name]["secret"])
3350
2288
2289
3351
2290
# Add/remove clients based on new changes made to config
3352
2291
for client_name in (set(old_client_settings)
3353
2292
- set(client_settings)):
3356
2295
- set(old_client_settings)):
3357
2296
clients_data[client_name] = client_settings[client_name]
3358
2297
3359
# Create all client objects
3360
for client_name, client in clients_data.items():
2298
# Create clients all clients
2299
for client_name, client in clients_data.iteritems():
3361
2300
tcp_server.clients[client_name] = client_class(
3362
name=client_name,
3363
settings=client,
3364
server_settings=server_settings)
3365
2301
name = client_name, settings = client)
2302
3366
2303
if not tcp_server.clients:
3367
2304
logger.warning("No clients defined")
3368
3369
if not foreground:
3370
if pidfile is not None:
3371
pid = os.getpid()
3372
try:
3373
with pidfile:
3374
print(pid, file=pidfile)
3375
except IOError:
3376
logger.error("Could not write to file %r with PID %d",
3377
pidfilename, pid)
3378
del pidfile
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
3379
2318
del pidfilename
3380
3381
for termsig in (signal.SIGHUP, signal.SIGTERM):
3382
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3383
lambda: main_loop.quit() and False)
3384
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
3385
2324
if use_dbus:
3386
3387
@alternate_dbus_interfaces(
3388
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3389
class MandosDBusService(DBusObjectWithObjectManager):
2325
class MandosDBusService(dbus.service.Object):
3390
2326
"""A D-Bus proxy object"""
3391
3392
2327
def __init__(self):
3393
2328
dbus.service.Object.__init__(self, bus, "/")
3394
3395
2329
_interface = "se.recompile.Mandos"
3396
2330
3397
2331
@dbus.service.signal(_interface, signature="o")
3398
2332
def ClientAdded(self, objpath):
3399
2333
"D-Bus signal"
3400
2334
pass
3401
2335
3402
2336
@dbus.service.signal(_interface, signature="ss")
3403
def ClientNotFound(self, key_id, address):
2337
def ClientNotFound(self, fingerprint, address):
3404
2338
"D-Bus signal"
3405
2339
pass
3406
3407
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3408
"true"})
2340
3409
2341
@dbus.service.signal(_interface, signature="os")
3410
2342
def ClientRemoved(self, objpath, name):
3411
2343
"D-Bus signal"
3412
2344
pass
3413
3414
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3415
"true"})
2345
3416
2346
@dbus.service.method(_interface, out_signature="ao")
3417
2347
def GetAllClients(self):
3418
2348
"D-Bus method"
3419
return dbus.Array(c.dbus_object_path for c in
3420
tcp_server.clients.values())
3421
3422
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3423
"true"})
2349
return dbus.Array(c.dbus_object_path
2350
for c in
2351
tcp_server.clients.itervalues())
2352
3424
2353
@dbus.service.method(_interface,
3425
2354
out_signature="a{oa{sv}}")
3426
2355
def GetAllClientsWithProperties(self):
3427
2356
"D-Bus method"
3428
2357
return dbus.Dictionary(
3429
{c.dbus_object_path: c.GetAll(
3430
"se.recompile.Mandos.Client")
3431
for c in tcp_server.clients.values()},
2358
((c.dbus_object_path, c.GetAll(""))
2359
for c in tcp_server.clients.itervalues()),
3432
2360
signature="oa{sv}")
3433
2361
3434
2362
@dbus.service.method(_interface, in_signature="o")
3435
2363
def RemoveClient(self, object_path):
3436
2364
"D-Bus method"
3437
for c in tcp_server.clients.values():
2365
for c in tcp_server.clients.itervalues():
3438
2366
if c.dbus_object_path == object_path:
3439
2367
del tcp_server.clients[c.name]
3440
2368
c.remove_from_connection()
3441
# Don't signal the disabling
2369
# Don't signal anything except ClientRemoved
3442
2370
c.disable(quiet=True)
3443
# Emit D-Bus signal for removal
3444
self.client_removed_signal(c)
2371
# Emit D-Bus signal
2372
self.ClientRemoved(object_path, c.name)
3445
2373
return
3446
2374
raise KeyError(object_path)
3447
2375
3448
2376
del _interface
3449
3450
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3451
out_signature="a{oa{sa{sv}}}")
3452
def GetManagedObjects(self):
3453
"""D-Bus method"""
3454
return dbus.Dictionary(
3455
{client.dbus_object_path:
3456
dbus.Dictionary(
3457
{interface: client.GetAll(interface)
3458
for interface in
3459
client._get_all_interface_names()})
3460
for client in tcp_server.clients.values()})
3461
3462
def client_added_signal(self, client):
3463
"""Send the new standard signal and the old signal"""
3464
if use_dbus:
3465
# New standard signal
3466
self.InterfacesAdded(
3467
client.dbus_object_path,
3468
dbus.Dictionary(
3469
{interface: client.GetAll(interface)
3470
for interface in
3471
client._get_all_interface_names()}))
3472
# Old signal
3473
self.ClientAdded(client.dbus_object_path)
3474
3475
def client_removed_signal(self, client):
3476
"""Send the new standard signal and the old signal"""
3477
if use_dbus:
3478
# New standard signal
3479
self.InterfacesRemoved(
3480
client.dbus_object_path,
3481
client._get_all_interface_names())
3482
# Old signal
3483
self.ClientRemoved(client.dbus_object_path,
3484
client.name)
3485
3486
mandos_dbus_service = MandosDBusService()
3487
3488
# Save modules to variables to exempt the modules from being
3489
# unloaded before the function registered with atexit() is run.
3490
mp = multiprocessing
3491
wn = wnull
3492
2377
2378
class MandosDBusServiceTransitional(MandosDBusService):
2379
__metaclass__ = AlternateDBusNamesMetaclass
2380
mandos_dbus_service = MandosDBusServiceTransitional()
2381
3493
2382
def cleanup():
3494
2383
"Cleanup function; run on exit"
3495
if zeroconf:
3496
service.cleanup()
3497
3498
mp.active_children()
3499
wn.close()
2384
service.cleanup()
2385
2386
multiprocessing.active_children()
3500
2387
if not (tcp_server.clients or client_settings):
3501
2388
return
3502
2389
3503
2390
# Store client before exiting. Secrets are encrypted with key
3504
2391
# based on what config file has. If config file is
3505
2392
# removed/edited, old secret will thus be unrecovable.
3506
2393
clients = {}
3507
2394
with PGPEngine() as pgp:
3508
for client in tcp_server.clients.values():
2395
for client in tcp_server.clients.itervalues():
3509
2396
key = client_settings[client.name]["secret"]
3510
2397
client.encrypted_secret = pgp.encrypt(client.secret,
3511
2398
key)
3512
2399
client_dict = {}
3513
2400
3514
2401
# A list of attributes that can not be pickled
3515
2402
# + secret.
3516
exclude = {"bus", "changedstate", "secret",
3517
"checker", "server_settings"}
3518
for name, typ in inspect.getmembers(dbus.service
3519
.Object):
2403
exclude = set(("bus", "changedstate", "secret",
2404
"checker"))
2405
for name, typ in (inspect.getmembers
2406
(dbus.service.Object)):
3520
2407
exclude.add(name)
3521
2408
3522
2409
client_dict["encrypted_secret"] = (client
3523
2410
.encrypted_secret)
3524
2411
for attr in client.client_structure:
3525
2412
if attr not in exclude:
3526
2413
client_dict[attr] = getattr(client, attr)
3527
2414
3528
2415
clients[client.name] = client_dict
3529
2416
del client_settings[client.name]["secret"]
3530
2417
3531
2418
try:
3532
with tempfile.NamedTemporaryFile(
3533
mode='wb',
3534
suffix=".pickle",
3535
prefix='clients-',
3536
dir=os.path.dirname(stored_state_path),
3537
delete=False) as stored_state:
3538
pickle.dump((clients, client_settings), stored_state,
3539
protocol=2)
3540
tempname = stored_state.name
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)
3541
2425
os.rename(tempname, stored_state_path)
3542
2426
except (IOError, OSError) as e:
2427
logger.warning("Could not save persistent state: {0}"
2428
.format(e))
3543
2429
if not debug:
3544
2430
try:
3545
2431
os.remove(tempname)
3546
2432
except NameError:
3547
2433
pass
3548
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3549
logger.warning("Could not save persistent state: {}"
3550
.format(os.strerror(e.errno)))
3551
else:
3552
logger.warning("Could not save persistent state:",
3553
exc_info=e)
3554
raise
3555
2434
if e.errno not in set((errno.ENOENT, errno.EACCES,
2435
errno.EEXIST)):
2436
raise e
2437
3556
2438
# Delete all clients, and settings from config
3557
2439
while tcp_server.clients:
3558
2440
name, client = tcp_server.clients.popitem()
3559
2441
if use_dbus:
3560
2442
client.remove_from_connection()
3561
# Don't signal the disabling
2443
# Don't signal anything except ClientRemoved
3562
2444
client.disable(quiet=True)
3563
# Emit D-Bus signal for removal
3564
2445
if use_dbus:
3565
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)
3566
2450
client_settings.clear()
3567
2451
3568
2452
atexit.register(cleanup)
3569
3570
for client in tcp_server.clients.values():
2453
2454
for client in tcp_server.clients.itervalues():
3571
2455
if use_dbus:
3572
# Emit D-Bus signal for adding
3573
mandos_dbus_service.client_added_signal(client)
2456
# Emit D-Bus signal
2457
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3574
2458
# Need to initiate checking of clients
3575
2459
if client.enabled:
3576
2460
client.init_checker()
3577
2461
3578
2462
tcp_server.enable()
3579
2463
tcp_server.server_activate()
3580
2464
3581
2465
# Find out what port we got
3582
if zeroconf:
3583
service.port = tcp_server.socket.getsockname()[1]
2466
service.port = tcp_server.socket.getsockname()[1]
3584
2467
if use_ipv6:
3585
2468
logger.info("Now listening on address %r, port %d,"
3586
" flowinfo %d, scope_id %d",
3587
*tcp_server.socket.getsockname())
2469
" flowinfo %d, scope_id %d"
2470
% tcp_server.socket.getsockname())
3588
2471
else: # IPv4
3589
logger.info("Now listening on address %r, port %d",
3590
*tcp_server.socket.getsockname())
3591
3592
# service.interface = tcp_server.socket.getsockname()[3]
3593
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
3594
2477
try:
3595
if zeroconf:
3596
# From the Avahi example code
3597
try:
3598
service.activate()
3599
except dbus.exceptions.DBusException as error:
3600
logger.critical("D-Bus Exception", exc_info=error)
3601
cleanup()
3602
sys.exit(1)
3603
# End of Avahi example code
3604
3605
GLib.io_add_watch(
3606
GLib.IOChannel.unix_new(tcp_server.fileno()),
3607
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3608
lambda *args, **kwargs: (tcp_server.handle_request
3609
(*args[2:], **kwargs) or True))
3610
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
3611
2492
logger.debug("Starting main loop")
3612
2493
main_loop.run()
3613
2494
except AvahiError as error:
3614
logger.critical("Avahi Error", exc_info=error)
2495
logger.critical("AvahiError: %s", error)
3615
2496
cleanup()
3616
2497
sys.exit(1)
3617
2498
except KeyboardInterrupt:
3622
2503
# Must run before the D-Bus bus name gets deregistered
3623
2504
cleanup()
3624
2505
3625
3626
def should_only_run_tests():
3627
parser = argparse.ArgumentParser(add_help=False)
3628
parser.add_argument("--check", action='store_true')
3629
args, unknown_args = parser.parse_known_args()
3630
run_tests = args.check
3631
if run_tests:
3632
# Remove --check argument from sys.argv
3633
sys.argv[1:] = unknown_args
3634
return run_tests
3635
3636
# Add all tests from doctest strings
3637
def load_tests(loader, tests, none):
3638
import doctest
3639
tests.addTests(doctest.DocTestSuite())
3640
return tests
3641
3642
2506
if __name__ == '__main__':
3643
try:
3644
if should_only_run_tests():
3645
# Call using ./mandos --check [--verbose]
3646
unittest.main()
3647
else:
3648
main()
3649
finally:
3650
logging.shutdown()
2507
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0