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- Committer: teddy at recompile
- Date: 2020-07-04 11:58:52 UTC
- Revision ID: teddy@recompile.se-20200704115852-oquhnmng3zom4ldl
Update copyright year
* DBUS-API: Update copyright year to 2020
* debian/copyright: - '' -
* dracut-module/ask-password-mandos.service: - '' -
* dracut-module/password-agent.c: - '' -
* mandos: - '' -
* mandos-ctl: - '' -
* plugin-runner.c: - '' -
* plugins.d/mandos-client.c: - '' -
* plugins.d/plymouth.c: - '' -
* mandos-to-cryptroot-unlock: Update copyright year to 2019.
* DBUS-API: Update copyright year to 2020
* debian/copyright: - '' -
* dracut-module/ask-password-mandos.service: - '' -
* dracut-module/password-agent.c: - '' -
* mandos: - '' -
* mandos-ctl: - '' -
* plugin-runner.c: - '' -
* plugins.d/mandos-client.c: - '' -
* plugins.d/plymouth.c: - '' -
* mandos-to-cryptroot-unlock: Update copyright year to 2019.
- files added:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2012 Teddy Hogeborn
15
# Copyright © 2008-2012 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2020 Teddy Hogeborn
15
# Copyright © 2008-2020 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
31
32
# Contact the authors at <mandos@recompile.se>.
32
#
33
#
33
34
34
35
from __future__ import (division, absolute_import, print_function,
35
36
unicode_literals)
36
37
37
import SocketServer as socketserver
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
38
47
import socket
39
48
import argparse
40
49
import datetime
41
50
import errno
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
49
55
import sys
50
56
import re
51
57
import os
60
66
import struct
61
67
import fcntl
62
68
import functools
63
import cPickle as pickle
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
64
73
import multiprocessing
65
74
import types
66
75
import binascii
67
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
import shlex
68
83
69
84
import dbus
70
85
import dbus.service
71
import gobject
72
import avahi
86
import gi
87
from gi.repository import GLib
73
88
from dbus.mainloop.glib import DBusGMainLoop
74
89
import ctypes
75
90
import ctypes.util
76
91
import xml.dom.minidom
77
92
import inspect
78
import GnuPGInterface
79
80
try:
93
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
81
122
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
82
123
except AttributeError:
83
124
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
84
127
from IN import SO_BINDTODEVICE
85
128
except ImportError:
86
SO_BINDTODEVICE = None
87
88
version = "1.5.1"
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.11"
89
147
stored_state_file = "clients.pickle"
90
148
91
149
logger = logging.getLogger()
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
95
152
96
153
try:
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
100
156
except (OSError, AttributeError):
157
101
158
def if_nametoindex(interface):
102
159
"Get an interface index the hard way, i.e. using fcntl()"
103
160
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
104
161
with contextlib.closing(socket.socket()) as s:
105
162
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
110
165
return interface_index
111
166
112
167
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
113
184
def initlogger(debug, level=logging.WARNING):
114
185
"""init logger and add loglevel"""
115
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
116
191
syslogger.setFormatter(logging.Formatter
117
192
('Mandos [%(process)d]: %(levelname)s:'
118
193
' %(message)s'))
119
194
logger.addHandler(syslogger)
120
195
121
196
if debug:
122
197
console = logging.StreamHandler()
123
198
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
133
208
pass
134
209
135
210
136
class PGPEngine(object):
211
class PGPEngine:
137
212
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
138
214
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
140
215
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
145
'--quiet',
146
'--no-use-agent'])
147
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ['--batch',
228
'--homedir', self.tempdir,
229
'--force-mdc',
230
'--quiet']
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
148
235
def __enter__(self):
149
236
return self
150
151
def __exit__ (self, exc_type, exc_value, traceback):
237
238
def __exit__(self, exc_type, exc_value, traceback):
152
239
self._cleanup()
153
240
return False
154
241
155
242
def __del__(self):
156
243
self._cleanup()
157
244
158
245
def _cleanup(self):
159
246
if self.tempdir is not None:
160
247
# Delete contents of tempdir
161
248
for root, dirs, files in os.walk(self.tempdir,
162
topdown = False):
249
topdown=False):
163
250
for filename in files:
164
251
os.remove(os.path.join(root, filename))
165
252
for dirname in dirs:
167
254
# Remove tempdir
168
255
os.rmdir(self.tempdir)
169
256
self.tempdir = None
170
257
171
258
def password_encode(self, password):
172
259
# Passphrase can not be empty and can not contain newlines or
173
260
# NUL bytes. So we prefix it and hex encode it.
174
return b"mandos" + binascii.hexlify(password)
175
261
encoded = b"mandos" + binascii.hexlify(password)
262
if len(encoded) > 2048:
263
# GnuPG can't handle long passwords, so encode differently
264
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
265
.replace(b"\n", b"\\n")
266
.replace(b"\0", b"\\x00"))
267
return encoded
268
176
269
def encrypt(self, data, password):
177
self.gnupg.passphrase = self.password_encode(password)
178
with open(os.devnull) as devnull:
179
try:
180
proc = self.gnupg.run(['--symmetric'],
181
create_fhs=['stdin', 'stdout'],
182
attach_fhs={'stderr': devnull})
183
with contextlib.closing(proc.handles['stdin']) as f:
184
f.write(data)
185
with contextlib.closing(proc.handles['stdout']) as f:
186
ciphertext = f.read()
187
proc.wait()
188
except IOError as e:
189
raise PGPError(e)
190
self.gnupg.passphrase = None
270
passphrase = self.password_encode(password)
271
with tempfile.NamedTemporaryFile(
272
dir=self.tempdir) as passfile:
273
passfile.write(passphrase)
274
passfile.flush()
275
proc = subprocess.Popen([self.gpg, '--symmetric',
276
'--passphrase-file',
277
passfile.name]
278
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
283
if proc.returncode != 0:
284
raise PGPError(err)
191
285
return ciphertext
192
286
193
287
def decrypt(self, data, password):
194
self.gnupg.passphrase = self.password_encode(password)
195
with open(os.devnull) as devnull:
196
try:
197
proc = self.gnupg.run(['--decrypt'],
198
create_fhs=['stdin', 'stdout'],
199
attach_fhs={'stderr': devnull})
200
with contextlib.closing(proc.handles['stdin'] ) as f:
201
f.write(data)
202
with contextlib.closing(proc.handles['stdout']) as f:
203
decrypted_plaintext = f.read()
204
proc.wait()
205
except IOError as e:
206
raise PGPError(e)
207
self.gnupg.passphrase = None
288
passphrase = self.password_encode(password)
289
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
291
passfile.write(passphrase)
292
passfile.flush()
293
proc = subprocess.Popen([self.gpg, '--decrypt',
294
'--passphrase-file',
295
passfile.name]
296
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
301
if proc.returncode != 0:
302
raise PGPError(err)
208
303
return decrypted_plaintext
209
304
210
305
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
211
331
212
332
class AvahiError(Exception):
213
333
def __init__(self, value, *args, **kwargs):
214
334
self.value = value
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
218
338
219
339
class AvahiServiceError(AvahiError):
220
340
pass
221
341
342
222
343
class AvahiGroupError(AvahiError):
223
344
pass
224
345
225
346
226
class AvahiService(object):
347
class AvahiService:
227
348
"""An Avahi (Zeroconf) service.
228
349
229
350
Attributes:
230
351
interface: integer; avahi.IF_UNSPEC or an interface index.
231
352
Used to optionally bind to the specified interface.
232
353
name: string; Example: 'Mandos'
233
354
type: string; Example: '_mandos._tcp'.
234
See <http://www.dns-sd.org/ServiceTypes.html>
355
See <https://www.iana.org/assignments/service-names-port-numbers>
235
356
port: integer; what port to announce
236
357
TXT: list of strings; TXT record for the service
237
358
domain: string; Domain to publish on, default to .local if empty.
243
364
server: D-Bus Server
244
365
bus: dbus.SystemBus()
245
366
"""
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):
367
368
def __init__(self,
369
interface=avahi.IF_UNSPEC,
370
name=None,
371
servicetype=None,
372
port=None,
373
TXT=None,
374
domain="",
375
host="",
376
max_renames=32768,
377
protocol=avahi.PROTO_UNSPEC,
378
bus=None):
250
379
self.interface = interface
251
380
self.name = name
252
381
self.type = servicetype
261
390
self.server = None
262
391
self.bus = bus
263
392
self.entry_group_state_changed_match = None
264
def rename(self):
393
394
def rename(self, remove=True):
265
395
"""Derived from the Avahi example code"""
266
396
if self.rename_count >= self.max_renames:
267
397
logger.critical("No suitable Zeroconf service name found"
268
398
" after %i retries, exiting.",
269
399
self.rename_count)
270
400
raise AvahiServiceError("Too many renames")
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
273
404
logger.info("Changing Zeroconf service name to %r ...",
274
405
self.name)
275
self.remove()
406
if remove:
407
self.remove()
276
408
try:
277
409
self.add()
278
410
except dbus.exceptions.DBusException as error:
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
411
if (error.get_dbus_name()
412
== "org.freedesktop.Avahi.CollisionError"):
413
logger.info("Local Zeroconf service name collision.")
414
return self.rename(remove=False)
415
else:
416
logger.critical("D-Bus Exception", exc_info=error)
417
self.cleanup()
418
os._exit(1)
419
283
420
def remove(self):
284
421
"""Derived from the Avahi example code"""
285
422
if self.entry_group_state_changed_match is not None:
287
424
self.entry_group_state_changed_match = None
288
425
if self.group is not None:
289
426
self.group.Reset()
427
290
428
def add(self):
291
429
"""Derived from the Avahi example code"""
292
430
self.remove()
309
447
dbus.UInt16(self.port),
310
448
avahi.string_array_to_txt_array(self.TXT))
311
449
self.group.Commit()
450
312
451
def entry_group_state_changed(self, state, error):
313
452
"""Derived from the Avahi example code"""
314
453
logger.debug("Avahi entry group state change: %i", state)
315
454
316
455
if state == avahi.ENTRY_GROUP_ESTABLISHED:
317
456
logger.debug("Zeroconf service established.")
318
457
elif state == avahi.ENTRY_GROUP_COLLISION:
320
459
self.rename()
321
460
elif state == avahi.ENTRY_GROUP_FAILURE:
322
461
logger.critical("Avahi: Error in group state changed %s",
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
326
465
def cleanup(self):
327
466
"""Derived from the Avahi example code"""
328
467
if self.group is not None:
333
472
pass
334
473
self.group = None
335
474
self.remove()
475
336
476
def server_state_changed(self, state, error=None):
337
477
"""Derived from the Avahi example code"""
338
478
logger.debug("Avahi server state change: %i", state)
339
bad_states = { avahi.SERVER_INVALID:
340
"Zeroconf server invalid",
341
avahi.SERVER_REGISTERING: None,
342
avahi.SERVER_COLLISION:
343
"Zeroconf server name collision",
344
avahi.SERVER_FAILURE:
345
"Zeroconf server failure" }
479
bad_states = {
480
avahi.SERVER_INVALID: "Zeroconf server invalid",
481
avahi.SERVER_REGISTERING: None,
482
avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
avahi.SERVER_FAILURE: "Zeroconf server failure",
484
}
346
485
if state in bad_states:
347
486
if bad_states[state] is not None:
348
487
if error is None:
351
490
logger.error(bad_states[state] + ": %r", error)
352
491
self.cleanup()
353
492
elif state == avahi.SERVER_RUNNING:
354
self.add()
493
try:
494
self.add()
495
except dbus.exceptions.DBusException as error:
496
if (error.get_dbus_name()
497
== "org.freedesktop.Avahi.CollisionError"):
498
logger.info("Local Zeroconf service name"
499
" collision.")
500
return self.rename(remove=False)
501
else:
502
logger.critical("D-Bus Exception", exc_info=error)
503
self.cleanup()
504
os._exit(1)
355
505
else:
356
506
if error is None:
357
507
logger.debug("Unknown state: %r", state)
358
508
else:
359
509
logger.debug("Unknown state: %r: %r", state, error)
510
360
511
def activate(self):
361
512
"""Derived from the Avahi example code"""
362
513
if self.server is None:
366
517
follow_name_owner_changes=True),
367
518
avahi.DBUS_INTERFACE_SERVER)
368
519
self.server.connect_to_signal("StateChanged",
369
self.server_state_changed)
520
self.server_state_changed)
370
521
self.server_state_changed(self.server.GetState())
371
522
523
372
524
class AvahiServiceToSyslog(AvahiService):
373
def rename(self):
525
def rename(self, *args, **kwargs):
374
526
"""Add the new name to the syslog messages"""
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
379
% self.name))
527
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
528
syslogger.setFormatter(logging.Formatter(
529
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
530
.format(self.name)))
380
531
return ret
381
532
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):
533
534
# Pretend that we have a GnuTLS module
535
class gnutls:
536
"""This isn't so much a class as it is a module-like namespace."""
537
538
library = ctypes.util.find_library("gnutls")
539
if library is None:
540
library = ctypes.util.find_library("gnutls-deb0")
541
_library = ctypes.cdll.LoadLibrary(library)
542
del library
543
544
# Unless otherwise indicated, the constants and types below are
545
# all from the gnutls/gnutls.h C header file.
546
547
# Constants
548
E_SUCCESS = 0
549
E_INTERRUPTED = -52
550
E_AGAIN = -28
551
CRT_OPENPGP = 2
552
CRT_RAWPK = 3
553
CLIENT = 2
554
SHUT_RDWR = 0
555
CRD_CERTIFICATE = 1
556
E_NO_CERTIFICATE_FOUND = -49
557
X509_FMT_DER = 0
558
NO_TICKETS = 1<<10
559
ENABLE_RAWPK = 1<<18
560
CTYPE_PEERS = 3
561
KEYID_USE_SHA256 = 1 # gnutls/x509.h
562
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
563
564
# Types
565
class session_int(ctypes.Structure):
566
_fields_ = []
567
session_t = ctypes.POINTER(session_int)
568
569
class certificate_credentials_st(ctypes.Structure):
570
_fields_ = []
571
certificate_credentials_t = ctypes.POINTER(
572
certificate_credentials_st)
573
certificate_type_t = ctypes.c_int
574
575
class datum_t(ctypes.Structure):
576
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
577
('size', ctypes.c_uint)]
578
579
class openpgp_crt_int(ctypes.Structure):
580
_fields_ = []
581
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
582
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
583
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
584
credentials_type_t = ctypes.c_int
585
transport_ptr_t = ctypes.c_void_p
586
close_request_t = ctypes.c_int
587
588
# Exceptions
589
class Error(Exception):
590
def __init__(self, message=None, code=None, args=()):
591
# Default usage is by a message string, but if a return
592
# code is passed, convert it to a string with
593
# gnutls.strerror()
594
self.code = code
595
if message is None and code is not None:
596
message = gnutls.strerror(code)
597
return super(gnutls.Error, self).__init__(
598
message, *args)
599
600
class CertificateSecurityError(Error):
601
pass
602
603
# Classes
604
class Credentials:
605
def __init__(self):
606
self._c_object = gnutls.certificate_credentials_t()
607
gnutls.certificate_allocate_credentials(
608
ctypes.byref(self._c_object))
609
self.type = gnutls.CRD_CERTIFICATE
610
611
def __del__(self):
612
gnutls.certificate_free_credentials(self._c_object)
613
614
class ClientSession:
615
def __init__(self, socket, credentials=None):
616
self._c_object = gnutls.session_t()
617
gnutls_flags = gnutls.CLIENT
618
if gnutls.check_version(b"3.5.6"):
619
gnutls_flags |= gnutls.NO_TICKETS
620
if gnutls.has_rawpk:
621
gnutls_flags |= gnutls.ENABLE_RAWPK
622
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
623
del gnutls_flags
624
gnutls.set_default_priority(self._c_object)
625
gnutls.transport_set_ptr(self._c_object, socket.fileno())
626
gnutls.handshake_set_private_extensions(self._c_object,
627
True)
628
self.socket = socket
629
if credentials is None:
630
credentials = gnutls.Credentials()
631
gnutls.credentials_set(self._c_object, credentials.type,
632
ctypes.cast(credentials._c_object,
633
ctypes.c_void_p))
634
self.credentials = credentials
635
636
def __del__(self):
637
gnutls.deinit(self._c_object)
638
639
def handshake(self):
640
return gnutls.handshake(self._c_object)
641
642
def send(self, data):
643
data = bytes(data)
644
data_len = len(data)
645
while data_len > 0:
646
data_len -= gnutls.record_send(self._c_object,
647
data[-data_len:],
648
data_len)
649
650
def bye(self):
651
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
652
653
# Error handling functions
654
def _error_code(result):
655
"""A function to raise exceptions on errors, suitable
656
for the 'restype' attribute on ctypes functions"""
657
if result >= 0:
658
return result
659
if result == gnutls.E_NO_CERTIFICATE_FOUND:
660
raise gnutls.CertificateSecurityError(code=result)
661
raise gnutls.Error(code=result)
662
663
def _retry_on_error(result, func, arguments):
664
"""A function to retry on some errors, suitable
665
for the 'errcheck' attribute on ctypes functions"""
666
while result < 0:
667
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
668
return _error_code(result)
669
result = func(*arguments)
670
return result
671
672
# Unless otherwise indicated, the function declarations below are
673
# all from the gnutls/gnutls.h C header file.
674
675
# Functions
676
priority_set_direct = _library.gnutls_priority_set_direct
677
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
678
ctypes.POINTER(ctypes.c_char_p)]
679
priority_set_direct.restype = _error_code
680
681
init = _library.gnutls_init
682
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
683
init.restype = _error_code
684
685
set_default_priority = _library.gnutls_set_default_priority
686
set_default_priority.argtypes = [session_t]
687
set_default_priority.restype = _error_code
688
689
record_send = _library.gnutls_record_send
690
record_send.argtypes = [session_t, ctypes.c_void_p,
691
ctypes.c_size_t]
692
record_send.restype = ctypes.c_ssize_t
693
record_send.errcheck = _retry_on_error
694
695
certificate_allocate_credentials = (
696
_library.gnutls_certificate_allocate_credentials)
697
certificate_allocate_credentials.argtypes = [
698
ctypes.POINTER(certificate_credentials_t)]
699
certificate_allocate_credentials.restype = _error_code
700
701
certificate_free_credentials = (
702
_library.gnutls_certificate_free_credentials)
703
certificate_free_credentials.argtypes = [
704
certificate_credentials_t]
705
certificate_free_credentials.restype = None
706
707
handshake_set_private_extensions = (
708
_library.gnutls_handshake_set_private_extensions)
709
handshake_set_private_extensions.argtypes = [session_t,
710
ctypes.c_int]
711
handshake_set_private_extensions.restype = None
712
713
credentials_set = _library.gnutls_credentials_set
714
credentials_set.argtypes = [session_t, credentials_type_t,
715
ctypes.c_void_p]
716
credentials_set.restype = _error_code
717
718
strerror = _library.gnutls_strerror
719
strerror.argtypes = [ctypes.c_int]
720
strerror.restype = ctypes.c_char_p
721
722
certificate_type_get = _library.gnutls_certificate_type_get
723
certificate_type_get.argtypes = [session_t]
724
certificate_type_get.restype = _error_code
725
726
certificate_get_peers = _library.gnutls_certificate_get_peers
727
certificate_get_peers.argtypes = [session_t,
728
ctypes.POINTER(ctypes.c_uint)]
729
certificate_get_peers.restype = ctypes.POINTER(datum_t)
730
731
global_set_log_level = _library.gnutls_global_set_log_level
732
global_set_log_level.argtypes = [ctypes.c_int]
733
global_set_log_level.restype = None
734
735
global_set_log_function = _library.gnutls_global_set_log_function
736
global_set_log_function.argtypes = [log_func]
737
global_set_log_function.restype = None
738
739
deinit = _library.gnutls_deinit
740
deinit.argtypes = [session_t]
741
deinit.restype = None
742
743
handshake = _library.gnutls_handshake
744
handshake.argtypes = [session_t]
745
handshake.restype = _error_code
746
handshake.errcheck = _retry_on_error
747
748
transport_set_ptr = _library.gnutls_transport_set_ptr
749
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
750
transport_set_ptr.restype = None
751
752
bye = _library.gnutls_bye
753
bye.argtypes = [session_t, close_request_t]
754
bye.restype = _error_code
755
bye.errcheck = _retry_on_error
756
757
check_version = _library.gnutls_check_version
758
check_version.argtypes = [ctypes.c_char_p]
759
check_version.restype = ctypes.c_char_p
760
761
_need_version = b"3.3.0"
762
if check_version(_need_version) is None:
763
raise self.Error("Needs GnuTLS {} or later"
764
.format(_need_version))
765
766
_tls_rawpk_version = b"3.6.6"
767
has_rawpk = bool(check_version(_tls_rawpk_version))
768
769
if has_rawpk:
770
# Types
771
class pubkey_st(ctypes.Structure):
772
_fields = []
773
pubkey_t = ctypes.POINTER(pubkey_st)
774
775
x509_crt_fmt_t = ctypes.c_int
776
777
# All the function declarations below are from gnutls/abstract.h
778
pubkey_init = _library.gnutls_pubkey_init
779
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
780
pubkey_init.restype = _error_code
781
782
pubkey_import = _library.gnutls_pubkey_import
783
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
784
x509_crt_fmt_t]
785
pubkey_import.restype = _error_code
786
787
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
788
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
789
ctypes.POINTER(ctypes.c_ubyte),
790
ctypes.POINTER(ctypes.c_size_t)]
791
pubkey_get_key_id.restype = _error_code
792
793
pubkey_deinit = _library.gnutls_pubkey_deinit
794
pubkey_deinit.argtypes = [pubkey_t]
795
pubkey_deinit.restype = None
796
else:
797
# All the function declarations below are from gnutls/openpgp.h
798
799
openpgp_crt_init = _library.gnutls_openpgp_crt_init
800
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
801
openpgp_crt_init.restype = _error_code
802
803
openpgp_crt_import = _library.gnutls_openpgp_crt_import
804
openpgp_crt_import.argtypes = [openpgp_crt_t,
805
ctypes.POINTER(datum_t),
806
openpgp_crt_fmt_t]
807
openpgp_crt_import.restype = _error_code
808
809
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
810
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
811
ctypes.POINTER(ctypes.c_uint)]
812
openpgp_crt_verify_self.restype = _error_code
813
814
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
815
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
816
openpgp_crt_deinit.restype = None
817
818
openpgp_crt_get_fingerprint = (
819
_library.gnutls_openpgp_crt_get_fingerprint)
820
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
821
ctypes.c_void_p,
822
ctypes.POINTER(
823
ctypes.c_size_t)]
824
openpgp_crt_get_fingerprint.restype = _error_code
825
826
if check_version(b"3.6.4"):
827
certificate_type_get2 = _library.gnutls_certificate_type_get2
828
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
829
certificate_type_get2.restype = _error_code
830
831
# Remove non-public functions
832
del _error_code, _retry_on_error
833
834
835
def call_pipe(connection, # : multiprocessing.Connection
836
func, *args, **kwargs):
837
"""This function is meant to be called by multiprocessing.Process
838
839
This function runs func(*args, **kwargs), and writes the resulting
840
return value on the provided multiprocessing.Connection.
841
"""
842
connection.send(func(*args, **kwargs))
843
connection.close()
844
845
846
class Client:
389
847
"""A representation of a client host served by this server.
390
848
391
849
Attributes:
392
850
approved: bool(); 'None' if not yet approved/disapproved
393
851
approval_delay: datetime.timedelta(); Time to wait for approval
394
852
approval_duration: datetime.timedelta(); Duration of one approval
395
checker: subprocess.Popen(); a running checker process used
396
to see if the client lives.
397
'None' if no process is running.
398
checker_callback_tag: a gobject event source tag, or None
853
checker: multiprocessing.Process(); a running checker process used
854
to see if the client lives. 'None' if no process is
855
running.
856
checker_callback_tag: a GLib event source tag, or None
399
857
checker_command: string; External command which is run to check
400
858
if client lives. %() expansions are done at
401
859
runtime with vars(self) as dict, so that for
402
860
instance %(name)s can be used in the command.
403
checker_initiator_tag: a gobject event source tag, or None
861
checker_initiator_tag: a GLib event source tag, or None
404
862
created: datetime.datetime(); (UTC) object creation
405
863
client_structure: Object describing what attributes a client has
406
864
and is used for storing the client at exit
407
865
current_checker_command: string; current running checker_command
408
disable_initiator_tag: a gobject event source tag, or None
866
disable_initiator_tag: a GLib event source tag, or None
409
867
enabled: bool()
410
868
fingerprint: string (40 or 32 hexadecimal digits); used to
411
uniquely identify the client
869
uniquely identify an OpenPGP client
870
key_id: string (64 hexadecimal digits); used to uniquely identify
871
a client using raw public keys
412
872
host: string; available for use by the checker command
413
873
interval: datetime.timedelta(); How often to start a new checker
414
874
last_approval_request: datetime.datetime(); (UTC) or None
415
875
last_checked_ok: datetime.datetime(); (UTC) or None
416
876
last_checker_status: integer between 0 and 255 reflecting exit
417
877
status of last checker. -1 reflects crashed
418
checker, or None.
878
checker, -2 means no checker completed yet.
879
last_checker_signal: The signal which killed the last checker, if
880
last_checker_status is -1
419
881
last_enabled: datetime.datetime(); (UTC) or None
420
882
name: string; from the config file, used in log messages and
421
883
D-Bus identifiers
422
884
secret: bytestring; sent verbatim (over TLS) to client
423
885
timeout: datetime.timedelta(); How long from last_checked_ok
424
886
until this client is disabled
425
extended_timeout: extra long timeout when password has been sent
887
extended_timeout: extra long timeout when secret has been sent
426
888
runtime_expansions: Allowed attributes for runtime expansion.
427
889
expires: datetime.datetime(); time (UTC) when a client will be
428
890
disabled, or None
891
server_settings: The server_settings dict from main()
429
892
"""
430
893
431
894
runtime_expansions = ("approval_delay", "approval_duration",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
895
"created", "enabled", "expires", "key_id",
896
"fingerprint", "host", "interval",
897
"last_approval_request", "last_checked_ok",
434
898
"last_enabled", "name", "timeout")
435
client_defaults = { "timeout": "5m",
436
"extended_timeout": "15m",
437
"interval": "2m",
438
"checker": "fping -q -- %%(host)s",
439
"host": "",
440
"approval_delay": "0s",
441
"approval_duration": "1s",
442
"approved_by_default": "True",
443
"enabled": "True",
444
}
445
446
def timeout_milliseconds(self):
447
"Return the 'timeout' attribute in milliseconds"
448
return timedelta_to_milliseconds(self.timeout)
449
450
def extended_timeout_milliseconds(self):
451
"Return the 'extended_timeout' attribute in milliseconds"
452
return timedelta_to_milliseconds(self.extended_timeout)
453
454
def interval_milliseconds(self):
455
"Return the 'interval' attribute in milliseconds"
456
return timedelta_to_milliseconds(self.interval)
457
458
def approval_delay_milliseconds(self):
459
return timedelta_to_milliseconds(self.approval_delay)
899
client_defaults = {
900
"timeout": "PT5M",
901
"extended_timeout": "PT15M",
902
"interval": "PT2M",
903
"checker": "fping -q -- %%(host)s",
904
"host": "",
905
"approval_delay": "PT0S",
906
"approval_duration": "PT1S",
907
"approved_by_default": "True",
908
"enabled": "True",
909
}
460
910
461
911
@staticmethod
462
912
def config_parser(config):
470
920
for client_name in config.sections():
471
921
section = dict(config.items(client_name))
472
922
client = settings[client_name] = {}
473
923
474
924
client["host"] = section["host"]
475
925
# Reformat values from string types to Python types
476
926
client["approved_by_default"] = config.getboolean(
477
927
client_name, "approved_by_default")
478
928
client["enabled"] = config.getboolean(client_name,
479
929
"enabled")
480
930
931
# Uppercase and remove spaces from key_id and fingerprint
932
# for later comparison purposes with return value from the
933
# key_id() and fingerprint() functions
934
client["key_id"] = (section.get("key_id", "").upper()
935
.replace(" ", ""))
481
936
client["fingerprint"] = (section["fingerprint"].upper()
482
937
.replace(" ", ""))
483
938
if "secret" in section:
484
client["secret"] = section["secret"].decode("base64")
939
client["secret"] = codecs.decode(section["secret"]
940
.encode("utf-8"),
941
"base64")
485
942
elif "secfile" in section:
486
943
with open(os.path.expanduser(os.path.expandvars
487
944
(section["secfile"])),
488
945
"rb") as secfile:
489
946
client["secret"] = secfile.read()
490
947
else:
491
raise TypeError("No secret or secfile for section %s"
492
% section)
948
raise TypeError("No secret or secfile for section {}"
949
.format(section))
493
950
client["timeout"] = string_to_delta(section["timeout"])
494
951
client["extended_timeout"] = string_to_delta(
495
952
section["extended_timeout"])
501
958
client["checker_command"] = section["checker"]
502
959
client["last_approval_request"] = None
503
960
client["last_checked_ok"] = None
504
client["last_checker_status"] = None
505
961
client["last_checker_status"] = -2
962
506
963
return settings
507
508
509
def __init__(self, settings, name = None):
510
"""Note: the 'checker' key in 'config' sets the
511
'checker_command' attribute and *not* the 'checker'
512
attribute."""
964
965
def __init__(self, settings, name=None, server_settings=None):
513
966
self.name = name
967
if server_settings is None:
968
server_settings = {}
969
self.server_settings = server_settings
514
970
# adding all client settings
515
for setting, value in settings.iteritems():
971
for setting, value in settings.items():
516
972
setattr(self, setting, value)
517
973
518
974
if self.enabled:
519
975
if not hasattr(self, "last_enabled"):
520
976
self.last_enabled = datetime.datetime.utcnow()
524
980
else:
525
981
self.last_enabled = None
526
982
self.expires = None
527
983
528
984
logger.debug("Creating client %r", self.name)
529
# Uppercase and remove spaces from fingerprint for later
530
# comparison purposes with return value from the fingerprint()
531
# function
985
logger.debug(" Key ID: %s", self.key_id)
532
986
logger.debug(" Fingerprint: %s", self.fingerprint)
533
987
self.created = settings.get("created",
534
988
datetime.datetime.utcnow())
541
995
self.current_checker_command = None
542
996
self.approved = None
543
997
self.approvals_pending = 0
544
self.changedstate = (multiprocessing_manager
545
.Condition(multiprocessing_manager
546
.Lock()))
547
self.client_structure = [attr for attr in
548
self.__dict__.iterkeys()
998
self.changedstate = multiprocessing_manager.Condition(
999
multiprocessing_manager.Lock())
1000
self.client_structure = [attr
1001
for attr in self.__dict__.keys()
549
1002
if not attr.startswith("_")]
550
1003
self.client_structure.append("client_structure")
551
552
for name, t in inspect.getmembers(type(self),
553
lambda obj:
554
isinstance(obj,
555
property)):
1004
1005
for name, t in inspect.getmembers(
1006
type(self), lambda obj: isinstance(obj, property)):
556
1007
if not name.startswith("_"):
557
1008
self.client_structure.append(name)
558
1009
559
1010
# Send notice to process children that client state has changed
560
1011
def send_changedstate(self):
561
1012
with self.changedstate:
562
1013
self.changedstate.notify_all()
563
1014
564
1015
def enable(self):
565
1016
"""Start this client's checker and timeout hooks"""
566
1017
if getattr(self, "enabled", False):
567
1018
# Already enabled
568
1019
return
569
self.send_changedstate()
570
1020
self.expires = datetime.datetime.utcnow() + self.timeout
571
1021
self.enabled = True
572
1022
self.last_enabled = datetime.datetime.utcnow()
573
1023
self.init_checker()
574
1024
self.send_changedstate()
1025
575
1026
def disable(self, quiet=True):
576
1027
"""Disable this client."""
577
1028
if not getattr(self, "enabled", False):
578
1029
return False
579
1030
if not quiet:
580
self.send_changedstate()
581
if not quiet:
582
1031
logger.info("Disabling client %s", self.name)
583
if getattr(self, "disable_initiator_tag", False):
584
gobject.source_remove(self.disable_initiator_tag)
1032
if getattr(self, "disable_initiator_tag", None) is not None:
1033
GLib.source_remove(self.disable_initiator_tag)
585
1034
self.disable_initiator_tag = None
586
1035
self.expires = None
587
if getattr(self, "checker_initiator_tag", False):
588
gobject.source_remove(self.checker_initiator_tag)
1036
if getattr(self, "checker_initiator_tag", None) is not None:
1037
GLib.source_remove(self.checker_initiator_tag)
589
1038
self.checker_initiator_tag = None
590
1039
self.stop_checker()
591
1040
self.enabled = False
592
# Do not run this again if called by a gobject.timeout_add
1041
if not quiet:
1042
self.send_changedstate()
1043
# Do not run this again if called by a GLib.timeout_add
593
1044
return False
594
1045
595
1046
def __del__(self):
596
1047
self.disable()
597
1048
598
1049
def init_checker(self):
599
1050
# Schedule a new checker to be started an 'interval' from now,
600
1051
# and every interval from then on.
601
self.checker_initiator_tag = (gobject.timeout_add
602
(self.interval_milliseconds(),
603
self.start_checker))
1052
if self.checker_initiator_tag is not None:
1053
GLib.source_remove(self.checker_initiator_tag)
1054
self.checker_initiator_tag = GLib.timeout_add(
1055
random.randrange(int(self.interval.total_seconds() * 1000
1056
+ 1)),
1057
self.start_checker)
604
1058
# Schedule a disable() when 'timeout' has passed
605
self.disable_initiator_tag = (gobject.timeout_add
606
(self.timeout_milliseconds(),
607
self.disable))
1059
if self.disable_initiator_tag is not None:
1060
GLib.source_remove(self.disable_initiator_tag)
1061
self.disable_initiator_tag = GLib.timeout_add(
1062
int(self.timeout.total_seconds() * 1000), self.disable)
608
1063
# Also start a new checker *right now*.
609
1064
self.start_checker()
610
611
def checker_callback(self, pid, condition, command):
1065
1066
def checker_callback(self, source, condition, connection,
1067
command):
612
1068
"""The checker has completed, so take appropriate actions."""
1069
# Read return code from connection (see call_pipe)
1070
returncode = connection.recv()
1071
connection.close()
1072
if self.checker is not None:
1073
self.checker.join()
613
1074
self.checker_callback_tag = None
614
1075
self.checker = None
615
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
1076
1077
if returncode >= 0:
1078
self.last_checker_status = returncode
1079
self.last_checker_signal = None
617
1080
if self.last_checker_status == 0:
618
1081
logger.info("Checker for %(name)s succeeded",
619
1082
vars(self))
620
1083
self.checked_ok()
621
1084
else:
622
logger.info("Checker for %(name)s failed",
623
vars(self))
1085
logger.info("Checker for %(name)s failed", vars(self))
624
1086
else:
625
1087
self.last_checker_status = -1
1088
self.last_checker_signal = -returncode
626
1089
logger.warning("Checker for %(name)s crashed?",
627
1090
vars(self))
628
629
def checked_ok(self, timeout=None):
630
"""Bump up the timeout for this client.
631
632
This should only be called when the client has been seen,
633
alive and well.
634
"""
1091
return False
1092
1093
def checked_ok(self):
1094
"""Assert that the client has been seen, alive and well."""
1095
self.last_checked_ok = datetime.datetime.utcnow()
1096
self.last_checker_status = 0
1097
self.last_checker_signal = None
1098
self.bump_timeout()
1099
1100
def bump_timeout(self, timeout=None):
1101
"""Bump up the timeout for this client."""
635
1102
if timeout is None:
636
1103
timeout = self.timeout
637
self.last_checked_ok = datetime.datetime.utcnow()
638
1104
if self.disable_initiator_tag is not None:
639
gobject.source_remove(self.disable_initiator_tag)
1105
GLib.source_remove(self.disable_initiator_tag)
1106
self.disable_initiator_tag = None
640
1107
if getattr(self, "enabled", False):
641
self.disable_initiator_tag = (gobject.timeout_add
642
(timedelta_to_milliseconds
643
(timeout), self.disable))
1108
self.disable_initiator_tag = GLib.timeout_add(
1109
int(timeout.total_seconds() * 1000), self.disable)
644
1110
self.expires = datetime.datetime.utcnow() + timeout
645
1111
646
1112
def need_approval(self):
647
1113
self.last_approval_request = datetime.datetime.utcnow()
648
1114
649
1115
def start_checker(self):
650
1116
"""Start a new checker subprocess if one is not running.
651
1117
652
1118
If a checker already exists, leave it running and do
653
1119
nothing."""
654
1120
# The reason for not killing a running checker is that if we
655
# did that, then if a checker (for some reason) started
656
# running slowly and taking more than 'interval' time, the
657
# client would inevitably timeout, since no checker would get
658
# a chance to run to completion. If we instead leave running
1121
# did that, and if a checker (for some reason) started running
1122
# slowly and taking more than 'interval' time, then the client
1123
# would inevitably timeout, since no checker would get a
1124
# chance to run to completion. If we instead leave running
659
1125
# checkers alone, the checker would have to take more time
660
1126
# than 'timeout' for the client to be disabled, which is as it
661
1127
# should be.
662
663
# If a checker exists, make sure it is not a zombie
664
try:
665
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
666
except (AttributeError, OSError) as error:
667
if (isinstance(error, OSError)
668
and error.errno != errno.ECHILD):
669
raise error
670
else:
671
if pid:
672
logger.warning("Checker was a zombie")
673
gobject.source_remove(self.checker_callback_tag)
674
self.checker_callback(pid, status,
675
self.current_checker_command)
1128
1129
if self.checker is not None and not self.checker.is_alive():
1130
logger.warning("Checker was not alive; joining")
1131
self.checker.join()
1132
self.checker = None
676
1133
# Start a new checker if needed
677
1134
if self.checker is None:
1135
# Escape attributes for the shell
1136
escaped_attrs = {
1137
attr: shlex.quote(str(getattr(self, attr)))
1138
for attr in self.runtime_expansions}
678
1139
try:
679
# In case checker_command has exactly one % operator
680
command = self.checker_command % self.host
681
except TypeError:
682
# Escape attributes for the shell
683
escaped_attrs = dict(
684
(attr,
685
re.escape(unicode(str(getattr(self, attr, "")),
686
errors=
687
'replace')))
688
for attr in
689
self.runtime_expansions)
690
691
try:
692
command = self.checker_command % escaped_attrs
693
except TypeError as error:
694
logger.error('Could not format string "%s":'
695
' %s', self.checker_command, error)
696
return True # Try again later
1140
command = self.checker_command % escaped_attrs
1141
except TypeError as error:
1142
logger.error('Could not format string "%s"',
1143
self.checker_command,
1144
exc_info=error)
1145
return True # Try again later
697
1146
self.current_checker_command = command
698
try:
699
logger.info("Starting checker %r for %s",
700
command, self.name)
701
# We don't need to redirect stdout and stderr, since
702
# in normal mode, that is already done by daemon(),
703
# and in debug mode we don't want to. (Stdin is
704
# always replaced by /dev/null.)
705
self.checker = subprocess.Popen(command,
706
close_fds=True,
707
shell=True, cwd="/")
708
self.checker_callback_tag = (gobject.child_watch_add
709
(self.checker.pid,
710
self.checker_callback,
711
data=command))
712
# The checker may have completed before the gobject
713
# watch was added. Check for this.
714
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
715
if pid:
716
gobject.source_remove(self.checker_callback_tag)
717
self.checker_callback(pid, status, command)
718
except OSError as error:
719
logger.error("Failed to start subprocess: %s",
720
error)
721
# Re-run this periodically if run by gobject.timeout_add
1147
logger.info("Starting checker %r for %s", command,
1148
self.name)
1149
# We don't need to redirect stdout and stderr, since
1150
# in normal mode, that is already done by daemon(),
1151
# and in debug mode we don't want to. (Stdin is
1152
# always replaced by /dev/null.)
1153
# The exception is when not debugging but nevertheless
1154
# running in the foreground; use the previously
1155
# created wnull.
1156
popen_args = {"close_fds": True,
1157
"shell": True,
1158
"cwd": "/"}
1159
if (not self.server_settings["debug"]
1160
and self.server_settings["foreground"]):
1161
popen_args.update({"stdout": wnull,
1162
"stderr": wnull})
1163
pipe = multiprocessing.Pipe(duplex=False)
1164
self.checker = multiprocessing.Process(
1165
target=call_pipe,
1166
args=(pipe[1], subprocess.call, command),
1167
kwargs=popen_args)
1168
self.checker.start()
1169
self.checker_callback_tag = GLib.io_add_watch(
1170
GLib.IOChannel.unix_new(pipe[0].fileno()),
1171
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1172
self.checker_callback, pipe[0], command)
1173
# Re-run this periodically if run by GLib.timeout_add
722
1174
return True
723
1175
724
1176
def stop_checker(self):
725
1177
"""Force the checker process, if any, to stop."""
726
1178
if self.checker_callback_tag:
727
gobject.source_remove(self.checker_callback_tag)
1179
GLib.source_remove(self.checker_callback_tag)
728
1180
self.checker_callback_tag = None
729
1181
if getattr(self, "checker", None) is None:
730
1182
return
731
1183
logger.debug("Stopping checker for %(name)s", vars(self))
732
try:
733
os.kill(self.checker.pid, signal.SIGTERM)
734
#time.sleep(0.5)
735
#if self.checker.poll() is None:
736
# os.kill(self.checker.pid, signal.SIGKILL)
737
except OSError as error:
738
if error.errno != errno.ESRCH: # No such process
739
raise
1184
self.checker.terminate()
740
1185
self.checker = None
741
1186
742
1187
743
def dbus_service_property(dbus_interface, signature="v",
744
access="readwrite", byte_arrays=False):
1188
def dbus_service_property(dbus_interface,
1189
signature="v",
1190
access="readwrite",
1191
byte_arrays=False):
745
1192
"""Decorators for marking methods of a DBusObjectWithProperties to
746
1193
become properties on the D-Bus.
747
1194
748
1195
The decorated method will be called with no arguments by "Get"
749
1196
and with one argument by "Set".
750
1197
751
1198
The parameters, where they are supported, are the same as
752
1199
dbus.service.method, except there is only "signature", since the
753
1200
type from Get() and the type sent to Set() is the same.
756
1203
# "Set" method, so we fail early here:
757
1204
if byte_arrays and signature != "ay":
758
1205
raise ValueError("Byte arrays not supported for non-'ay'"
759
" signature %r" % signature)
1206
" signature {!r}".format(signature))
1207
760
1208
def decorator(func):
761
1209
func._dbus_is_property = True
762
1210
func._dbus_interface = dbus_interface
765
1213
func._dbus_name = func.__name__
766
1214
if func._dbus_name.endswith("_dbus_property"):
767
1215
func._dbus_name = func._dbus_name[:-14]
768
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
769
return func
1216
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1217
return func
1218
1219
return decorator
1220
1221
1222
def dbus_interface_annotations(dbus_interface):
1223
"""Decorator for marking functions returning interface annotations
1224
1225
Usage:
1226
1227
@dbus_interface_annotations("org.example.Interface")
1228
def _foo(self): # Function name does not matter
1229
return {"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1231
"false"}
1232
"""
1233
1234
def decorator(func):
1235
func._dbus_is_interface = True
1236
func._dbus_interface = dbus_interface
1237
func._dbus_name = dbus_interface
1238
return func
1239
1240
return decorator
1241
1242
1243
def dbus_annotations(annotations):
1244
"""Decorator to annotate D-Bus methods, signals or properties
1245
Usage:
1246
1247
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1248
"org.freedesktop.DBus.Property."
1249
"EmitsChangedSignal": "false"})
1250
@dbus_service_property("org.example.Interface", signature="b",
1251
access="r")
1252
def Property_dbus_property(self):
1253
return dbus.Boolean(False)
1254
1255
See also the DBusObjectWithAnnotations class.
1256
"""
1257
1258
def decorator(func):
1259
func._dbus_annotations = annotations
1260
return func
1261
770
1262
return decorator
771
1263
772
1264
773
1265
class DBusPropertyException(dbus.exceptions.DBusException):
774
1266
"""A base class for D-Bus property-related exceptions
775
1267
"""
776
def __unicode__(self):
777
return unicode(str(self))
1268
pass
778
1269
779
1270
780
1271
class DBusPropertyAccessException(DBusPropertyException):
789
1280
pass
790
1281
791
1282
792
class DBusObjectWithProperties(dbus.service.Object):
1283
class DBusObjectWithAnnotations(dbus.service.Object):
1284
"""A D-Bus object with annotations.
1285
1286
Classes inheriting from this can use the dbus_annotations
1287
decorator to add annotations to methods or signals.
1288
"""
1289
1290
@staticmethod
1291
def _is_dbus_thing(thing):
1292
"""Returns a function testing if an attribute is a D-Bus thing
1293
1294
If called like _is_dbus_thing("method") it returns a function
1295
suitable for use as predicate to inspect.getmembers().
1296
"""
1297
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1298
False)
1299
1300
def _get_all_dbus_things(self, thing):
1301
"""Returns a generator of (name, attribute) pairs
1302
"""
1303
return ((getattr(athing.__get__(self), "_dbus_name", name),
1304
athing.__get__(self))
1305
for cls in self.__class__.__mro__
1306
for name, athing in
1307
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1308
1309
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1310
out_signature="s",
1311
path_keyword='object_path',
1312
connection_keyword='connection')
1313
def Introspect(self, object_path, connection):
1314
"""Overloading of standard D-Bus method.
1315
1316
Inserts annotation tags on methods and signals.
1317
"""
1318
xmlstring = dbus.service.Object.Introspect(self, object_path,
1319
connection)
1320
try:
1321
document = xml.dom.minidom.parseString(xmlstring)
1322
1323
for if_tag in document.getElementsByTagName("interface"):
1324
# Add annotation tags
1325
for typ in ("method", "signal"):
1326
for tag in if_tag.getElementsByTagName(typ):
1327
annots = dict()
1328
for name, prop in (self.
1329
_get_all_dbus_things(typ)):
1330
if (name == tag.getAttribute("name")
1331
and prop._dbus_interface
1332
== if_tag.getAttribute("name")):
1333
annots.update(getattr(
1334
prop, "_dbus_annotations", {}))
1335
for name, value in annots.items():
1336
ann_tag = document.createElement(
1337
"annotation")
1338
ann_tag.setAttribute("name", name)
1339
ann_tag.setAttribute("value", value)
1340
tag.appendChild(ann_tag)
1341
# Add interface annotation tags
1342
for annotation, value in dict(
1343
itertools.chain.from_iterable(
1344
annotations().items()
1345
for name, annotations
1346
in self._get_all_dbus_things("interface")
1347
if name == if_tag.getAttribute("name")
1348
)).items():
1349
ann_tag = document.createElement("annotation")
1350
ann_tag.setAttribute("name", annotation)
1351
ann_tag.setAttribute("value", value)
1352
if_tag.appendChild(ann_tag)
1353
# Fix argument name for the Introspect method itself
1354
if (if_tag.getAttribute("name")
1355
== dbus.INTROSPECTABLE_IFACE):
1356
for cn in if_tag.getElementsByTagName("method"):
1357
if cn.getAttribute("name") == "Introspect":
1358
for arg in cn.getElementsByTagName("arg"):
1359
if (arg.getAttribute("direction")
1360
== "out"):
1361
arg.setAttribute("name",
1362
"xml_data")
1363
xmlstring = document.toxml("utf-8")
1364
document.unlink()
1365
except (AttributeError, xml.dom.DOMException,
1366
xml.parsers.expat.ExpatError) as error:
1367
logger.error("Failed to override Introspection method",
1368
exc_info=error)
1369
return xmlstring
1370
1371
1372
class DBusObjectWithProperties(DBusObjectWithAnnotations):
793
1373
"""A D-Bus object with properties.
794
1374
795
1375
Classes inheriting from this can use the dbus_service_property
796
1376
decorator to expose methods as D-Bus properties. It exposes the
797
1377
standard Get(), Set(), and GetAll() methods on the D-Bus.
798
1378
"""
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
1379
812
1380
def _get_dbus_property(self, interface_name, property_name):
813
1381
"""Returns a bound method if one exists which is a D-Bus
814
1382
property with the specified name and interface.
815
1383
"""
816
for cls in self.__class__.__mro__:
817
for name, value in (inspect.getmembers
818
(cls, self._is_dbus_property)):
1384
for cls in self.__class__.__mro__:
1385
for name, value in inspect.getmembers(
1386
cls, self._is_dbus_thing("property")):
819
1387
if (value._dbus_name == property_name
820
1388
and value._dbus_interface == interface_name):
821
1389
return value.__get__(self)
822
1390
823
1391
# No such property
824
raise DBusPropertyNotFound(self.dbus_object_path + ":"
825
+ interface_name + "."
826
+ property_name)
827
828
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1392
raise DBusPropertyNotFound("{}:{}.{}".format(
1393
self.dbus_object_path, interface_name, property_name))
1394
1395
@classmethod
1396
def _get_all_interface_names(cls):
1397
"""Get a sequence of all interfaces supported by an object"""
1398
return (name for name in set(getattr(getattr(x, attr),
1399
"_dbus_interface", None)
1400
for x in (inspect.getmro(cls))
1401
for attr in dir(x))
1402
if name is not None)
1403
1404
@dbus.service.method(dbus.PROPERTIES_IFACE,
1405
in_signature="ss",
829
1406
out_signature="v")
830
1407
def Get(self, interface_name, property_name):
831
1408
"""Standard D-Bus property Get() method, see D-Bus standard.
837
1414
if not hasattr(value, "variant_level"):
838
1415
return value
839
1416
return type(value)(value, variant_level=value.variant_level+1)
840
1417
841
1418
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
842
1419
def Set(self, interface_name, property_name, value):
843
1420
"""Standard D-Bus property Set() method, see D-Bus standard.
849
1426
# The byte_arrays option is not supported yet on
850
1427
# signatures other than "ay".
851
1428
if prop._dbus_signature != "ay":
852
raise ValueError
853
value = dbus.ByteArray(b''.join(chr(byte)
854
for byte in value))
1429
raise ValueError("Byte arrays not supported for non-"
1430
"'ay' signature {!r}"
1431
.format(prop._dbus_signature))
1432
value = dbus.ByteArray(bytes(value))
855
1433
prop(value)
856
857
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1434
1435
@dbus.service.method(dbus.PROPERTIES_IFACE,
1436
in_signature="s",
858
1437
out_signature="a{sv}")
859
1438
def GetAll(self, interface_name):
860
1439
"""Standard D-Bus property GetAll() method, see D-Bus
861
1440
standard.
862
1441
863
1442
Note: Will not include properties with access="write".
864
1443
"""
865
1444
properties = {}
866
for name, prop in self._get_all_dbus_properties():
1445
for name, prop in self._get_all_dbus_things("property"):
867
1446
if (interface_name
868
1447
and interface_name != prop._dbus_interface):
869
1448
# Interface non-empty but did not match
875
1454
if not hasattr(value, "variant_level"):
876
1455
properties[name] = value
877
1456
continue
878
properties[name] = type(value)(value, variant_level=
879
value.variant_level+1)
1457
properties[name] = type(value)(
1458
value, variant_level=value.variant_level + 1)
880
1459
return dbus.Dictionary(properties, signature="sv")
881
1460
1461
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1462
def PropertiesChanged(self, interface_name, changed_properties,
1463
invalidated_properties):
1464
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1465
standard.
1466
"""
1467
pass
1468
882
1469
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
883
1470
out_signature="s",
884
1471
path_keyword='object_path',
885
1472
connection_keyword='connection')
886
1473
def Introspect(self, object_path, connection):
887
"""Standard D-Bus method, overloaded to insert property tags.
1474
"""Overloading of standard D-Bus method.
1475
1476
Inserts property tags and interface annotation tags.
888
1477
"""
889
xmlstring = dbus.service.Object.Introspect(self, object_path,
890
connection)
1478
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1479
object_path,
1480
connection)
891
1481
try:
892
1482
document = xml.dom.minidom.parseString(xmlstring)
1483
893
1484
def make_tag(document, name, prop):
894
1485
e = document.createElement("property")
895
1486
e.setAttribute("name", name)
896
1487
e.setAttribute("type", prop._dbus_signature)
897
1488
e.setAttribute("access", prop._dbus_access)
898
1489
return e
1490
899
1491
for if_tag in document.getElementsByTagName("interface"):
1492
# Add property tags
900
1493
for tag in (make_tag(document, name, prop)
901
1494
for name, prop
902
in self._get_all_dbus_properties()
1495
in self._get_all_dbus_things("property")
903
1496
if prop._dbus_interface
904
1497
== if_tag.getAttribute("name")):
905
1498
if_tag.appendChild(tag)
1499
# Add annotation tags for properties
1500
for tag in if_tag.getElementsByTagName("property"):
1501
annots = dict()
1502
for name, prop in self._get_all_dbus_things(
1503
"property"):
1504
if (name == tag.getAttribute("name")
1505
and prop._dbus_interface
1506
== if_tag.getAttribute("name")):
1507
annots.update(getattr(
1508
prop, "_dbus_annotations", {}))
1509
for name, value in annots.items():
1510
ann_tag = document.createElement(
1511
"annotation")
1512
ann_tag.setAttribute("name", name)
1513
ann_tag.setAttribute("value", value)
1514
tag.appendChild(ann_tag)
906
1515
# Add the names to the return values for the
907
1516
# "org.freedesktop.DBus.Properties" methods
908
1517
if (if_tag.getAttribute("name")
923
1532
except (AttributeError, xml.dom.DOMException,
924
1533
xml.parsers.expat.ExpatError) as error:
925
1534
logger.error("Failed to override Introspection method",
926
error)
927
return xmlstring
928
929
930
def datetime_to_dbus (dt, variant_level=0):
1535
exc_info=error)
1536
return xmlstring
1537
1538
1539
try:
1540
dbus.OBJECT_MANAGER_IFACE
1541
except AttributeError:
1542
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1543
1544
1545
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1546
"""A D-Bus object with an ObjectManager.
1547
1548
Classes inheriting from this exposes the standard
1549
GetManagedObjects call and the InterfacesAdded and
1550
InterfacesRemoved signals on the standard
1551
"org.freedesktop.DBus.ObjectManager" interface.
1552
1553
Note: No signals are sent automatically; they must be sent
1554
manually.
1555
"""
1556
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1557
out_signature="a{oa{sa{sv}}}")
1558
def GetManagedObjects(self):
1559
"""This function must be overridden"""
1560
raise NotImplementedError()
1561
1562
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1563
signature="oa{sa{sv}}")
1564
def InterfacesAdded(self, object_path, interfaces_and_properties):
1565
pass
1566
1567
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1568
def InterfacesRemoved(self, object_path, interfaces):
1569
pass
1570
1571
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1572
out_signature="s",
1573
path_keyword='object_path',
1574
connection_keyword='connection')
1575
def Introspect(self, object_path, connection):
1576
"""Overloading of standard D-Bus method.
1577
1578
Override return argument name of GetManagedObjects to be
1579
"objpath_interfaces_and_properties"
1580
"""
1581
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1582
object_path,
1583
connection)
1584
try:
1585
document = xml.dom.minidom.parseString(xmlstring)
1586
1587
for if_tag in document.getElementsByTagName("interface"):
1588
# Fix argument name for the GetManagedObjects method
1589
if (if_tag.getAttribute("name")
1590
== dbus.OBJECT_MANAGER_IFACE):
1591
for cn in if_tag.getElementsByTagName("method"):
1592
if (cn.getAttribute("name")
1593
== "GetManagedObjects"):
1594
for arg in cn.getElementsByTagName("arg"):
1595
if (arg.getAttribute("direction")
1596
== "out"):
1597
arg.setAttribute(
1598
"name",
1599
"objpath_interfaces"
1600
"_and_properties")
1601
xmlstring = document.toxml("utf-8")
1602
document.unlink()
1603
except (AttributeError, xml.dom.DOMException,
1604
xml.parsers.expat.ExpatError) as error:
1605
logger.error("Failed to override Introspection method",
1606
exc_info=error)
1607
return xmlstring
1608
1609
1610
def datetime_to_dbus(dt, variant_level=0):
931
1611
"""Convert a UTC datetime.datetime() to a D-Bus type."""
932
1612
if dt is None:
933
return dbus.String("", variant_level = variant_level)
934
return dbus.String(dt.isoformat(),
935
variant_level=variant_level)
936
937
938
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
939
.__metaclass__):
940
"""Applied to an empty subclass of a D-Bus object, this metaclass
941
will add additional D-Bus attributes matching a certain pattern.
1613
return dbus.String("", variant_level=variant_level)
1614
return dbus.String(dt.isoformat(), variant_level=variant_level)
1615
1616
1617
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1618
"""A class decorator; applied to a subclass of
1619
dbus.service.Object, it will add alternate D-Bus attributes with
1620
interface names according to the "alt_interface_names" mapping.
1621
Usage:
1622
1623
@alternate_dbus_interfaces({"org.example.Interface":
1624
"net.example.AlternateInterface"})
1625
class SampleDBusObject(dbus.service.Object):
1626
@dbus.service.method("org.example.Interface")
1627
def SampleDBusMethod():
1628
pass
1629
1630
The above "SampleDBusMethod" on "SampleDBusObject" will be
1631
reachable via two interfaces: "org.example.Interface" and
1632
"net.example.AlternateInterface", the latter of which will have
1633
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1634
"true", unless "deprecate" is passed with a False value.
1635
1636
This works for methods and signals, and also for D-Bus properties
1637
(from DBusObjectWithProperties) and interfaces (from the
1638
dbus_interface_annotations decorator).
942
1639
"""
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):
1640
1641
def wrapper(cls):
1642
for orig_interface_name, alt_interface_name in (
1643
alt_interface_names.items()):
1644
attr = {}
1645
interface_names = set()
1646
# Go though all attributes of the class
1647
for attrname, attribute in inspect.getmembers(cls):
950
1648
# Ignore non-D-Bus attributes, and D-Bus attributes
951
1649
# with the wrong interface name
952
1650
if (not hasattr(attribute, "_dbus_interface")
953
or not attribute._dbus_interface
954
.startswith("se.recompile.Mandos")):
1651
or not attribute._dbus_interface.startswith(
1652
orig_interface_name)):
955
1653
continue
956
1654
# Create an alternate D-Bus interface name based on
957
1655
# the current name
958
alt_interface = (attribute._dbus_interface
959
.replace("se.recompile.Mandos",
960
"se.bsnet.fukt.Mandos"))
1656
alt_interface = attribute._dbus_interface.replace(
1657
orig_interface_name, alt_interface_name)
1658
interface_names.add(alt_interface)
961
1659
# Is this a D-Bus signal?
962
1660
if getattr(attribute, "_dbus_is_signal", False):
963
# Extract the original non-method function by
964
# black magic
965
nonmethod_func = (dict(
1661
# Extract the original non-method undecorated
1662
# function by black magic
1663
if sys.version_info.major == 2:
1664
nonmethod_func = (dict(
966
1665
zip(attribute.func_code.co_freevars,
967
attribute.__closure__))["func"]
968
.cell_contents)
1666
attribute.__closure__))
1667
["func"].cell_contents)
1668
else:
1669
nonmethod_func = (dict(
1670
zip(attribute.__code__.co_freevars,
1671
attribute.__closure__))
1672
["func"].cell_contents)
969
1673
# Create a new, but exactly alike, function
970
1674
# object, and decorate it to be a new D-Bus signal
971
1675
# with the alternate D-Bus interface name
972
new_function = (dbus.service.signal
973
(alt_interface,
974
attribute._dbus_signature)
975
(types.FunctionType(
976
nonmethod_func.func_code,
977
nonmethod_func.func_globals,
978
nonmethod_func.func_name,
979
nonmethod_func.func_defaults,
980
nonmethod_func.func_closure)))
1676
new_function = copy_function(nonmethod_func)
1677
new_function = (dbus.service.signal(
1678
alt_interface,
1679
attribute._dbus_signature)(new_function))
1680
# Copy annotations, if any
1681
try:
1682
new_function._dbus_annotations = dict(
1683
attribute._dbus_annotations)
1684
except AttributeError:
1685
pass
1686
981
1687
# Define a creator of a function to call both the
982
# old and new functions, so both the old and new
983
# signals gets sent when the function is called
1688
# original and alternate functions, so both the
1689
# original and alternate signals gets sent when
1690
# the function is called
984
1691
def fixscope(func1, func2):
985
1692
"""This function is a scope container to pass
986
1693
func1 and func2 to the "call_both" function
987
1694
outside of its arguments"""
1695
1696
@functools.wraps(func2)
988
1697
def call_both(*args, **kwargs):
989
1698
"""This function will emit two D-Bus
990
1699
signals by calling func1 and func2"""
991
1700
func1(*args, **kwargs)
992
1701
func2(*args, **kwargs)
1702
# Make wrapper function look like a D-Bus
1703
# signal
1704
for name, attr in inspect.getmembers(func2):
1705
if name.startswith("_dbus_"):
1706
setattr(call_both, name, attr)
1707
993
1708
return call_both
994
1709
# Create the "call_both" function and add it to
995
1710
# the class
996
attr[attrname] = fixscope(attribute,
997
new_function)
1711
attr[attrname] = fixscope(attribute, new_function)
998
1712
# Is this a D-Bus method?
999
1713
elif getattr(attribute, "_dbus_is_method", False):
1000
1714
# Create a new, but exactly alike, function
1001
1715
# object. Decorate it to be a new D-Bus method
1002
1716
# with the alternate D-Bus interface name. Add it
1003
1717
# to the class.
1004
attr[attrname] = (dbus.service.method
1005
(alt_interface,
1006
attribute._dbus_in_signature,
1007
attribute._dbus_out_signature)
1008
(types.FunctionType
1009
(attribute.func_code,
1010
attribute.func_globals,
1011
attribute.func_name,
1012
attribute.func_defaults,
1013
attribute.func_closure)))
1718
attr[attrname] = (
1719
dbus.service.method(
1720
alt_interface,
1721
attribute._dbus_in_signature,
1722
attribute._dbus_out_signature)
1723
(copy_function(attribute)))
1724
# Copy annotations, if any
1725
try:
1726
attr[attrname]._dbus_annotations = dict(
1727
attribute._dbus_annotations)
1728
except AttributeError:
1729
pass
1014
1730
# Is this a D-Bus property?
1015
1731
elif getattr(attribute, "_dbus_is_property", False):
1016
1732
# Create a new, but exactly alike, function
1017
1733
# object, and decorate it to be a new D-Bus
1018
1734
# property with the alternate D-Bus interface
1019
1735
# name. Add it to the class.
1020
attr[attrname] = (dbus_service_property
1021
(alt_interface,
1022
attribute._dbus_signature,
1023
attribute._dbus_access,
1024
attribute
1025
._dbus_get_args_options
1026
["byte_arrays"])
1027
(types.FunctionType
1028
(attribute.func_code,
1029
attribute.func_globals,
1030
attribute.func_name,
1031
attribute.func_defaults,
1032
attribute.func_closure)))
1033
return type.__new__(mcs, name, bases, attr)
1034
1035
1736
attr[attrname] = (dbus_service_property(
1737
alt_interface, attribute._dbus_signature,
1738
attribute._dbus_access,
1739
attribute._dbus_get_args_options
1740
["byte_arrays"])
1741
(copy_function(attribute)))
1742
# Copy annotations, if any
1743
try:
1744
attr[attrname]._dbus_annotations = dict(
1745
attribute._dbus_annotations)
1746
except AttributeError:
1747
pass
1748
# Is this a D-Bus interface?
1749
elif getattr(attribute, "_dbus_is_interface", False):
1750
# Create a new, but exactly alike, function
1751
# object. Decorate it to be a new D-Bus interface
1752
# with the alternate D-Bus interface name. Add it
1753
# to the class.
1754
attr[attrname] = (
1755
dbus_interface_annotations(alt_interface)
1756
(copy_function(attribute)))
1757
if deprecate:
1758
# Deprecate all alternate interfaces
1759
iname = "_AlternateDBusNames_interface_annotation{}"
1760
for interface_name in interface_names:
1761
1762
@dbus_interface_annotations(interface_name)
1763
def func(self):
1764
return {"org.freedesktop.DBus.Deprecated":
1765
"true"}
1766
# Find an unused name
1767
for aname in (iname.format(i)
1768
for i in itertools.count()):
1769
if aname not in attr:
1770
attr[aname] = func
1771
break
1772
if interface_names:
1773
# Replace the class with a new subclass of it with
1774
# methods, signals, etc. as created above.
1775
if sys.version_info.major == 2:
1776
cls = type(b"{}Alternate".format(cls.__name__),
1777
(cls, ), attr)
1778
else:
1779
cls = type("{}Alternate".format(cls.__name__),
1780
(cls, ), attr)
1781
return cls
1782
1783
return wrapper
1784
1785
1786
@alternate_dbus_interfaces({"se.recompile.Mandos":
1787
"se.bsnet.fukt.Mandos"})
1036
1788
class ClientDBus(Client, DBusObjectWithProperties):
1037
1789
"""A Client class using D-Bus
1038
1790
1039
1791
Attributes:
1040
1792
dbus_object_path: dbus.ObjectPath
1041
1793
bus: dbus.SystemBus()
1042
1794
"""
1043
1795
1044
1796
runtime_expansions = (Client.runtime_expansions
1045
+ ("dbus_object_path",))
1046
1797
+ ("dbus_object_path", ))
1798
1799
_interface = "se.recompile.Mandos.Client"
1800
1047
1801
# dbus.service.Object doesn't use super(), so we can't either.
1048
1049
def __init__(self, bus = None, *args, **kwargs):
1802
1803
def __init__(self, bus=None, *args, **kwargs):
1050
1804
self.bus = bus
1051
1805
Client.__init__(self, *args, **kwargs)
1052
self._approvals_pending = 0
1053
1054
self._approvals_pending = 0
1055
1806
# Only now, when this client is initialized, can it show up on
1056
1807
# the D-Bus
1057
client_object_name = unicode(self.name).translate(
1808
client_object_name = str(self.name).translate(
1058
1809
{ord("."): ord("_"),
1059
1810
ord("-"): ord("_")})
1060
self.dbus_object_path = (dbus.ObjectPath
1061
("/clients/" + client_object_name))
1811
self.dbus_object_path = dbus.ObjectPath(
1812
"/clients/" + client_object_name)
1062
1813
DBusObjectWithProperties.__init__(self, self.bus,
1063
1814
self.dbus_object_path)
1064
1065
def notifychangeproperty(transform_func,
1066
dbus_name, type_func=lambda x: x,
1067
variant_level=1):
1815
1816
def notifychangeproperty(transform_func, dbus_name,
1817
type_func=lambda x: x,
1818
variant_level=1,
1819
invalidate_only=False,
1820
_interface=_interface):
1068
1821
""" Modify a variable so that it's a property which announces
1069
1822
its changes to DBus.
1070
1823
1071
1824
transform_fun: Function that takes a value and a variant_level
1072
1825
and transforms it to a D-Bus type.
1073
1826
dbus_name: D-Bus name of the variable
1075
1828
to the D-Bus. Default: no transform
1076
1829
variant_level: D-Bus variant level. Default: 1
1077
1830
"""
1078
attrname = "_{0}".format(dbus_name)
1831
attrname = "_{}".format(dbus_name)
1832
1079
1833
def setter(self, value):
1080
1834
if hasattr(self, "dbus_object_path"):
1081
1835
if (not hasattr(self, attrname) or
1082
1836
type_func(getattr(self, attrname, None))
1083
1837
!= type_func(value)):
1084
dbus_value = transform_func(type_func(value),
1085
variant_level
1086
=variant_level)
1087
self.PropertyChanged(dbus.String(dbus_name),
1088
dbus_value)
1838
if invalidate_only:
1839
self.PropertiesChanged(
1840
_interface, dbus.Dictionary(),
1841
dbus.Array((dbus_name, )))
1842
else:
1843
dbus_value = transform_func(
1844
type_func(value),
1845
variant_level=variant_level)
1846
self.PropertyChanged(dbus.String(dbus_name),
1847
dbus_value)
1848
self.PropertiesChanged(
1849
_interface,
1850
dbus.Dictionary({dbus.String(dbus_name):
1851
dbus_value}),
1852
dbus.Array())
1089
1853
setattr(self, attrname, value)
1090
1854
1091
1855
return property(lambda self: getattr(self, attrname), setter)
1092
1093
1856
1094
1857
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1095
1858
approvals_pending = notifychangeproperty(dbus.Boolean,
1096
1859
"ApprovalPending",
1097
type_func = bool)
1860
type_func=bool)
1098
1861
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1099
1862
last_enabled = notifychangeproperty(datetime_to_dbus,
1100
1863
"LastEnabled")
1101
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1102
type_func = lambda checker:
1103
checker is not None)
1864
checker = notifychangeproperty(
1865
dbus.Boolean, "CheckerRunning",
1866
type_func=lambda checker: checker is not None)
1104
1867
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1105
1868
"LastCheckedOK")
1869
last_checker_status = notifychangeproperty(dbus.Int16,
1870
"LastCheckerStatus")
1106
1871
last_approval_request = notifychangeproperty(
1107
1872
datetime_to_dbus, "LastApprovalRequest")
1108
1873
approved_by_default = notifychangeproperty(dbus.Boolean,
1109
1874
"ApprovedByDefault")
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1111
"ApprovalDelay",
1112
type_func =
1113
timedelta_to_milliseconds)
1875
approval_delay = notifychangeproperty(
1876
dbus.UInt64, "ApprovalDelay",
1877
type_func=lambda td: td.total_seconds() * 1000)
1114
1878
approval_duration = notifychangeproperty(
1115
1879
dbus.UInt64, "ApprovalDuration",
1116
type_func = timedelta_to_milliseconds)
1880
type_func=lambda td: td.total_seconds() * 1000)
1117
1881
host = notifychangeproperty(dbus.String, "Host")
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
type_func =
1120
timedelta_to_milliseconds)
1882
timeout = notifychangeproperty(
1883
dbus.UInt64, "Timeout",
1884
type_func=lambda td: td.total_seconds() * 1000)
1121
1885
extended_timeout = notifychangeproperty(
1122
1886
dbus.UInt64, "ExtendedTimeout",
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1125
"Interval",
1126
type_func =
1127
timedelta_to_milliseconds)
1887
type_func=lambda td: td.total_seconds() * 1000)
1888
interval = notifychangeproperty(
1889
dbus.UInt64, "Interval",
1890
type_func=lambda td: td.total_seconds() * 1000)
1128
1891
checker_command = notifychangeproperty(dbus.String, "Checker")
1129
1892
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1893
invalidate_only=True)
1894
1130
1895
del notifychangeproperty
1131
1896
1132
1897
def __del__(self, *args, **kwargs):
1133
1898
try:
1134
1899
self.remove_from_connection()
1137
1902
if hasattr(DBusObjectWithProperties, "__del__"):
1138
1903
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1139
1904
Client.__del__(self, *args, **kwargs)
1140
1141
def checker_callback(self, pid, condition, command,
1142
*args, **kwargs):
1143
self.checker_callback_tag = None
1144
self.checker = None
1145
if os.WIFEXITED(condition):
1146
exitstatus = os.WEXITSTATUS(condition)
1905
1906
def checker_callback(self, source, condition,
1907
connection, command, *args, **kwargs):
1908
ret = Client.checker_callback(self, source, condition,
1909
connection, command, *args,
1910
**kwargs)
1911
exitstatus = self.last_checker_status
1912
if exitstatus >= 0:
1147
1913
# Emit D-Bus signal
1148
1914
self.CheckerCompleted(dbus.Int16(exitstatus),
1149
dbus.Int64(condition),
1915
# This is specific to GNU libC
1916
dbus.Int64(exitstatus << 8),
1150
1917
dbus.String(command))
1151
1918
else:
1152
1919
# Emit D-Bus signal
1153
1920
self.CheckerCompleted(dbus.Int16(-1),
1154
dbus.Int64(condition),
1921
dbus.Int64(
1922
# This is specific to GNU libC
1923
(exitstatus << 8)
1924
| self.last_checker_signal),
1155
1925
dbus.String(command))
1156
1157
return Client.checker_callback(self, pid, condition, command,
1158
*args, **kwargs)
1159
1926
return ret
1927
1160
1928
def start_checker(self, *args, **kwargs):
1161
old_checker = self.checker
1162
if self.checker is not None:
1163
old_checker_pid = self.checker.pid
1164
else:
1165
old_checker_pid = None
1929
old_checker_pid = getattr(self.checker, "pid", None)
1166
1930
r = Client.start_checker(self, *args, **kwargs)
1167
1931
# Only if new checker process was started
1168
1932
if (self.checker is not None
1170
1934
# Emit D-Bus signal
1171
1935
self.CheckerStarted(self.current_checker_command)
1172
1936
return r
1173
1937
1174
1938
def _reset_approved(self):
1175
1939
self.approved = None
1176
1940
return False
1177
1941
1178
1942
def approve(self, value=True):
1179
self.send_changedstate()
1180
1943
self.approved = value
1181
gobject.timeout_add(timedelta_to_milliseconds
1182
(self.approval_duration),
1183
self._reset_approved)
1184
1185
1186
## D-Bus methods, signals & properties
1187
_interface = "se.recompile.Mandos.Client"
1188
1189
## Signals
1190
1944
GLib.timeout_add(int(self.approval_duration.total_seconds()
1945
* 1000), self._reset_approved)
1946
self.send_changedstate()
1947
1948
# D-Bus methods, signals & properties
1949
1950
# Interfaces
1951
1952
# Signals
1953
1191
1954
# CheckerCompleted - signal
1192
1955
@dbus.service.signal(_interface, signature="nxs")
1193
1956
def CheckerCompleted(self, exitcode, waitstatus, command):
1194
1957
"D-Bus signal"
1195
1958
pass
1196
1959
1197
1960
# CheckerStarted - signal
1198
1961
@dbus.service.signal(_interface, signature="s")
1199
1962
def CheckerStarted(self, command):
1200
1963
"D-Bus signal"
1201
1964
pass
1202
1965
1203
1966
# PropertyChanged - signal
1967
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1204
1968
@dbus.service.signal(_interface, signature="sv")
1205
1969
def PropertyChanged(self, property, value):
1206
1970
"D-Bus signal"
1207
1971
pass
1208
1972
1209
1973
# GotSecret - signal
1210
1974
@dbus.service.signal(_interface)
1211
1975
def GotSecret(self):
1214
1978
server to mandos-client
1215
1979
"""
1216
1980
pass
1217
1981
1218
1982
# Rejected - signal
1219
1983
@dbus.service.signal(_interface, signature="s")
1220
1984
def Rejected(self, reason):
1221
1985
"D-Bus signal"
1222
1986
pass
1223
1987
1224
1988
# NeedApproval - signal
1225
1989
@dbus.service.signal(_interface, signature="tb")
1226
1990
def NeedApproval(self, timeout, default):
1227
1991
"D-Bus signal"
1228
1992
return self.need_approval()
1229
1230
# NeRwequest - signal
1231
@dbus.service.signal(_interface, signature="s")
1232
def NewRequest(self, ip):
1233
"""D-Bus signal
1234
Is sent after a client request a password.
1235
"""
1236
pass
1237
1238
## Methods
1239
1993
1994
# Methods
1995
1240
1996
# Approve - method
1241
1997
@dbus.service.method(_interface, in_signature="b")
1242
1998
def Approve(self, value):
1243
1999
self.approve(value)
1244
2000
1245
2001
# CheckedOK - method
1246
2002
@dbus.service.method(_interface)
1247
2003
def CheckedOK(self):
1248
2004
self.checked_ok()
1249
2005
1250
2006
# Enable - method
2007
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1251
2008
@dbus.service.method(_interface)
1252
2009
def Enable(self):
1253
2010
"D-Bus method"
1254
2011
self.enable()
1255
2012
1256
2013
# StartChecker - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1257
2015
@dbus.service.method(_interface)
1258
2016
def StartChecker(self):
1259
2017
"D-Bus method"
1260
2018
self.start_checker()
1261
2019
1262
2020
# Disable - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1263
2022
@dbus.service.method(_interface)
1264
2023
def Disable(self):
1265
2024
"D-Bus method"
1266
2025
self.disable()
1267
2026
1268
2027
# StopChecker - method
2028
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1269
2029
@dbus.service.method(_interface)
1270
2030
def StopChecker(self):
1271
2031
self.stop_checker()
1272
1273
## Properties
1274
2032
2033
# Properties
2034
1275
2035
# ApprovalPending - property
1276
2036
@dbus_service_property(_interface, signature="b", access="read")
1277
2037
def ApprovalPending_dbus_property(self):
1278
2038
return dbus.Boolean(bool(self.approvals_pending))
1279
2039
1280
2040
# ApprovedByDefault - property
1281
@dbus_service_property(_interface, signature="b",
2041
@dbus_service_property(_interface,
2042
signature="b",
1282
2043
access="readwrite")
1283
2044
def ApprovedByDefault_dbus_property(self, value=None):
1284
2045
if value is None: # get
1285
2046
return dbus.Boolean(self.approved_by_default)
1286
2047
self.approved_by_default = bool(value)
1287
2048
1288
2049
# ApprovalDelay - property
1289
@dbus_service_property(_interface, signature="t",
2050
@dbus_service_property(_interface,
2051
signature="t",
1290
2052
access="readwrite")
1291
2053
def ApprovalDelay_dbus_property(self, value=None):
1292
2054
if value is None: # get
1293
return dbus.UInt64(self.approval_delay_milliseconds())
2055
return dbus.UInt64(self.approval_delay.total_seconds()
2056
* 1000)
1294
2057
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1295
2058
1296
2059
# ApprovalDuration - property
1297
@dbus_service_property(_interface, signature="t",
2060
@dbus_service_property(_interface,
2061
signature="t",
1298
2062
access="readwrite")
1299
2063
def ApprovalDuration_dbus_property(self, value=None):
1300
2064
if value is None: # get
1301
return dbus.UInt64(timedelta_to_milliseconds(
1302
self.approval_duration))
2065
return dbus.UInt64(self.approval_duration.total_seconds()
2066
* 1000)
1303
2067
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1304
2068
1305
2069
# Name - property
2070
@dbus_annotations(
2071
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1306
2072
@dbus_service_property(_interface, signature="s", access="read")
1307
2073
def Name_dbus_property(self):
1308
2074
return dbus.String(self.name)
1309
2075
2076
# KeyID - property
2077
@dbus_annotations(
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2079
@dbus_service_property(_interface, signature="s", access="read")
2080
def KeyID_dbus_property(self):
2081
return dbus.String(self.key_id)
2082
1310
2083
# Fingerprint - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1311
2086
@dbus_service_property(_interface, signature="s", access="read")
1312
2087
def Fingerprint_dbus_property(self):
1313
2088
return dbus.String(self.fingerprint)
1314
2089
1315
2090
# Host - property
1316
@dbus_service_property(_interface, signature="s",
2091
@dbus_service_property(_interface,
2092
signature="s",
1317
2093
access="readwrite")
1318
2094
def Host_dbus_property(self, value=None):
1319
2095
if value is None: # get
1320
2096
return dbus.String(self.host)
1321
self.host = unicode(value)
1322
2097
self.host = str(value)
2098
1323
2099
# Created - property
2100
@dbus_annotations(
2101
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1324
2102
@dbus_service_property(_interface, signature="s", access="read")
1325
2103
def Created_dbus_property(self):
1326
2104
return datetime_to_dbus(self.created)
1327
2105
1328
2106
# LastEnabled - property
1329
2107
@dbus_service_property(_interface, signature="s", access="read")
1330
2108
def LastEnabled_dbus_property(self):
1331
2109
return datetime_to_dbus(self.last_enabled)
1332
2110
1333
2111
# Enabled - property
1334
@dbus_service_property(_interface, signature="b",
2112
@dbus_service_property(_interface,
2113
signature="b",
1335
2114
access="readwrite")
1336
2115
def Enabled_dbus_property(self, value=None):
1337
2116
if value is None: # get
1340
2119
self.enable()
1341
2120
else:
1342
2121
self.disable()
1343
2122
1344
2123
# LastCheckedOK - property
1345
@dbus_service_property(_interface, signature="s",
2124
@dbus_service_property(_interface,
2125
signature="s",
1346
2126
access="readwrite")
1347
2127
def LastCheckedOK_dbus_property(self, value=None):
1348
2128
if value is not None:
1349
2129
self.checked_ok()
1350
2130
return
1351
2131
return datetime_to_dbus(self.last_checked_ok)
1352
2132
2133
# LastCheckerStatus - property
2134
@dbus_service_property(_interface, signature="n", access="read")
2135
def LastCheckerStatus_dbus_property(self):
2136
return dbus.Int16(self.last_checker_status)
2137
1353
2138
# Expires - property
1354
2139
@dbus_service_property(_interface, signature="s", access="read")
1355
2140
def Expires_dbus_property(self):
1356
2141
return datetime_to_dbus(self.expires)
1357
2142
1358
2143
# LastApprovalRequest - property
1359
2144
@dbus_service_property(_interface, signature="s", access="read")
1360
2145
def LastApprovalRequest_dbus_property(self):
1361
2146
return datetime_to_dbus(self.last_approval_request)
1362
2147
1363
2148
# Timeout - property
1364
@dbus_service_property(_interface, signature="t",
2149
@dbus_service_property(_interface,
2150
signature="t",
1365
2151
access="readwrite")
1366
2152
def Timeout_dbus_property(self, value=None):
1367
2153
if value is None: # get
1368
return dbus.UInt64(self.timeout_milliseconds())
2154
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2155
old_timeout = self.timeout
1369
2156
self.timeout = datetime.timedelta(0, 0, 0, value)
1370
# Reschedule timeout
2157
# Reschedule disabling
1371
2158
if self.enabled:
1372
2159
now = datetime.datetime.utcnow()
1373
time_to_die = timedelta_to_milliseconds(
1374
(self.last_checked_ok + self.timeout) - now)
1375
if time_to_die <= 0:
2160
self.expires += self.timeout - old_timeout
2161
if self.expires <= now:
1376
2162
# The timeout has passed
1377
2163
self.disable()
1378
2164
else:
1379
self.expires = (now +
1380
datetime.timedelta(milliseconds =
1381
time_to_die))
1382
2165
if (getattr(self, "disable_initiator_tag", None)
1383
2166
is None):
1384
2167
return
1385
gobject.source_remove(self.disable_initiator_tag)
1386
self.disable_initiator_tag = (gobject.timeout_add
1387
(time_to_die,
1388
self.disable))
1389
2168
GLib.source_remove(self.disable_initiator_tag)
2169
self.disable_initiator_tag = GLib.timeout_add(
2170
int((self.expires - now).total_seconds() * 1000),
2171
self.disable)
2172
1390
2173
# ExtendedTimeout - property
1391
@dbus_service_property(_interface, signature="t",
2174
@dbus_service_property(_interface,
2175
signature="t",
1392
2176
access="readwrite")
1393
2177
def ExtendedTimeout_dbus_property(self, value=None):
1394
2178
if value is None: # get
1395
return dbus.UInt64(self.extended_timeout_milliseconds())
2179
return dbus.UInt64(self.extended_timeout.total_seconds()
2180
* 1000)
1396
2181
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1397
2182
1398
2183
# Interval - property
1399
@dbus_service_property(_interface, signature="t",
2184
@dbus_service_property(_interface,
2185
signature="t",
1400
2186
access="readwrite")
1401
2187
def Interval_dbus_property(self, value=None):
1402
2188
if value is None: # get
1403
return dbus.UInt64(self.interval_milliseconds())
2189
return dbus.UInt64(self.interval.total_seconds() * 1000)
1404
2190
self.interval = datetime.timedelta(0, 0, 0, value)
1405
2191
if getattr(self, "checker_initiator_tag", None) is None:
1406
2192
return
1407
2193
if self.enabled:
1408
2194
# Reschedule checker run
1409
gobject.source_remove(self.checker_initiator_tag)
1410
self.checker_initiator_tag = (gobject.timeout_add
1411
(value, self.start_checker))
1412
self.start_checker() # Start one now, too
1413
2195
GLib.source_remove(self.checker_initiator_tag)
2196
self.checker_initiator_tag = GLib.timeout_add(
2197
value, self.start_checker)
2198
self.start_checker() # Start one now, too
2199
1414
2200
# Checker - property
1415
@dbus_service_property(_interface, signature="s",
2201
@dbus_service_property(_interface,
2202
signature="s",
1416
2203
access="readwrite")
1417
2204
def Checker_dbus_property(self, value=None):
1418
2205
if value is None: # get
1419
2206
return dbus.String(self.checker_command)
1420
self.checker_command = unicode(value)
1421
2207
self.checker_command = str(value)
2208
1422
2209
# CheckerRunning - property
1423
@dbus_service_property(_interface, signature="b",
2210
@dbus_service_property(_interface,
2211
signature="b",
1424
2212
access="readwrite")
1425
2213
def CheckerRunning_dbus_property(self, value=None):
1426
2214
if value is None: # get
1429
2217
self.start_checker()
1430
2218
else:
1431
2219
self.stop_checker()
1432
2220
1433
2221
# ObjectPath - property
2222
@dbus_annotations(
2223
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2224
"org.freedesktop.DBus.Deprecated": "true"})
1434
2225
@dbus_service_property(_interface, signature="o", access="read")
1435
2226
def ObjectPath_dbus_property(self):
1436
return self.dbus_object_path # is already a dbus.ObjectPath
1437
2227
return self.dbus_object_path # is already a dbus.ObjectPath
2228
1438
2229
# Secret = property
1439
@dbus_service_property(_interface, signature="ay",
1440
access="write", byte_arrays=True)
2230
@dbus_annotations(
2231
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2232
"invalidates"})
2233
@dbus_service_property(_interface,
2234
signature="ay",
2235
access="write",
2236
byte_arrays=True)
1441
2237
def Secret_dbus_property(self, value):
1442
self.secret = str(value)
1443
2238
self.secret = bytes(value)
2239
1444
2240
del _interface
1445
2241
1446
2242
1447
class ProxyClient(object):
1448
def __init__(self, child_pipe, fpr, address):
2243
class ProxyClient:
2244
def __init__(self, child_pipe, key_id, fpr, address):
1449
2245
self._pipe = child_pipe
1450
self._pipe.send(('init', fpr, address))
2246
self._pipe.send(('init', key_id, fpr, address))
1451
2247
if not self._pipe.recv():
1452
raise KeyError()
1453
2248
raise KeyError(key_id or fpr)
2249
1454
2250
def __getattribute__(self, name):
1455
2251
if name == '_pipe':
1456
2252
return super(ProxyClient, self).__getattribute__(name)
1459
2255
if data[0] == 'data':
1460
2256
return data[1]
1461
2257
if data[0] == 'function':
2258
1462
2259
def func(*args, **kwargs):
1463
2260
self._pipe.send(('funcall', name, args, kwargs))
1464
2261
return self._pipe.recv()[1]
2262
1465
2263
return func
1466
2264
1467
2265
def __setattr__(self, name, value):
1468
2266
if name == '_pipe':
1469
2267
return super(ProxyClient, self).__setattr__(name, value)
1470
2268
self._pipe.send(('setattr', name, value))
1471
2269
1472
2270
1473
class ClientDBusTransitional(ClientDBus):
1474
__metaclass__ = AlternateDBusNamesMetaclass
1475
1476
1477
2271
class ClientHandler(socketserver.BaseRequestHandler, object):
1478
2272
"""A class to handle client connections.
1479
2273
1480
2274
Instantiated once for each connection to handle it.
1481
2275
Note: This will run in its own forked process."""
1482
2276
1483
2277
def handle(self):
1484
2278
with contextlib.closing(self.server.child_pipe) as child_pipe:
1485
2279
logger.info("TCP connection from: %s",
1486
unicode(self.client_address))
2280
str(self.client_address))
1487
2281
logger.debug("Pipe FD: %d",
1488
2282
self.server.child_pipe.fileno())
1489
1490
session = (gnutls.connection
1491
.ClientSession(self.request,
1492
gnutls.connection
1493
.X509Credentials()))
1494
1495
# Note: gnutls.connection.X509Credentials is really a
1496
# generic GnuTLS certificate credentials object so long as
1497
# no X.509 keys are added to it. Therefore, we can use it
1498
# here despite using OpenPGP certificates.
1499
1500
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1501
# "+AES-256-CBC", "+SHA1",
1502
# "+COMP-NULL", "+CTYPE-OPENPGP",
1503
# "+DHE-DSS"))
2283
2284
session = gnutls.ClientSession(self.request)
2285
2286
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2287
# "+AES-256-CBC", "+SHA1",
2288
# "+COMP-NULL", "+CTYPE-OPENPGP",
2289
# "+DHE-DSS"))
1504
2290
# Use a fallback default, since this MUST be set.
1505
2291
priority = self.server.gnutls_priority
1506
2292
if priority is None:
1507
2293
priority = "NORMAL"
1508
(gnutls.library.functions
1509
.gnutls_priority_set_direct(session._c_object,
1510
priority, None))
1511
2294
gnutls.priority_set_direct(session._c_object,
2295
priority.encode("utf-8"),
2296
None)
2297
1512
2298
# Start communication using the Mandos protocol
1513
2299
# Get protocol number
1514
2300
line = self.request.makefile().readline()
1515
2301
logger.debug("Protocol version: %r", line)
1516
2302
try:
1517
2303
if int(line.strip().split()[0]) > 1:
1518
raise RuntimeError
2304
raise RuntimeError(line)
1519
2305
except (ValueError, IndexError, RuntimeError) as error:
1520
2306
logger.error("Unknown protocol version: %s", error)
1521
2307
return
1522
2308
1523
2309
# Start GnuTLS connection
1524
2310
try:
1525
2311
session.handshake()
1526
except gnutls.errors.GNUTLSError as error:
2312
except gnutls.Error as error:
1527
2313
logger.warning("Handshake failed: %s", error)
1528
2314
# Do not run session.bye() here: the session is not
1529
2315
# established. Just abandon the request.
1530
2316
return
1531
2317
logger.debug("Handshake succeeded")
1532
2318
1533
2319
approval_required = False
1534
2320
try:
1535
try:
1536
fpr = self.fingerprint(self.peer_certificate
1537
(session))
1538
except (TypeError,
1539
gnutls.errors.GNUTLSError) as error:
1540
logger.warning("Bad certificate: %s", error)
1541
return
1542
logger.debug("Fingerprint: %s", fpr)
1543
1544
try:
1545
client = ProxyClient(child_pipe, fpr,
2321
if gnutls.has_rawpk:
2322
fpr = b""
2323
try:
2324
key_id = self.key_id(
2325
self.peer_certificate(session))
2326
except (TypeError, gnutls.Error) as error:
2327
logger.warning("Bad certificate: %s", error)
2328
return
2329
logger.debug("Key ID: %s", key_id)
2330
2331
else:
2332
key_id = b""
2333
try:
2334
fpr = self.fingerprint(
2335
self.peer_certificate(session))
2336
except (TypeError, gnutls.Error) as error:
2337
logger.warning("Bad certificate: %s", error)
2338
return
2339
logger.debug("Fingerprint: %s", fpr)
2340
2341
try:
2342
client = ProxyClient(child_pipe, key_id, fpr,
1546
2343
self.client_address)
1547
2344
except KeyError:
1548
2345
return
1549
1550
if self.server.use_dbus:
1551
# Emit D-Bus signal
1552
client.NewRequest(str(self.client_address))
1553
2346
1554
2347
if client.approval_delay:
1555
2348
delay = client.approval_delay
1556
2349
client.approvals_pending += 1
1557
2350
approval_required = True
1558
2351
1559
2352
while True:
1560
2353
if not client.enabled:
1561
2354
logger.info("Client %s is disabled",
1562
client.name)
2355
client.name)
1563
2356
if self.server.use_dbus:
1564
2357
# Emit D-Bus signal
1565
2358
client.Rejected("Disabled")
1566
2359
return
1567
2360
1568
2361
if client.approved or not client.approval_delay:
1569
#We are approved or approval is disabled
2362
# We are approved or approval is disabled
1570
2363
break
1571
2364
elif client.approved is None:
1572
2365
logger.info("Client %s needs approval",
1574
2367
if self.server.use_dbus:
1575
2368
# Emit D-Bus signal
1576
2369
client.NeedApproval(
1577
client.approval_delay_milliseconds(),
1578
client.approved_by_default)
2370
client.approval_delay.total_seconds()
2371
* 1000, client.approved_by_default)
1579
2372
else:
1580
2373
logger.warning("Client %s was not approved",
1581
2374
client.name)
1583
2376
# Emit D-Bus signal
1584
2377
client.Rejected("Denied")
1585
2378
return
1586
1587
#wait until timeout or approved
2379
2380
# wait until timeout or approved
1588
2381
time = datetime.datetime.now()
1589
2382
client.changedstate.acquire()
1590
(client.changedstate.wait
1591
(float(client.timedelta_to_milliseconds(delay)
1592
/ 1000)))
2383
client.changedstate.wait(delay.total_seconds())
1593
2384
client.changedstate.release()
1594
2385
time2 = datetime.datetime.now()
1595
2386
if (time2 - time) >= delay:
1605
2396
break
1606
2397
else:
1607
2398
delay -= time2 - time
1608
1609
sent_size = 0
1610
while sent_size < len(client.secret):
1611
try:
1612
sent = session.send(client.secret[sent_size:])
1613
except gnutls.errors.GNUTLSError as error:
1614
logger.warning("gnutls send failed")
1615
return
1616
logger.debug("Sent: %d, remaining: %d",
1617
sent, len(client.secret)
1618
- (sent_size + sent))
1619
sent_size += sent
1620
2399
2400
try:
2401
session.send(client.secret)
2402
except gnutls.Error as error:
2403
logger.warning("gnutls send failed",
2404
exc_info=error)
2405
return
2406
1621
2407
logger.info("Sending secret to %s", client.name)
1622
2408
# bump the timeout using extended_timeout
1623
client.checked_ok(client.extended_timeout)
2409
client.bump_timeout(client.extended_timeout)
1624
2410
if self.server.use_dbus:
1625
2411
# Emit D-Bus signal
1626
2412
client.GotSecret()
1627
2413
1628
2414
finally:
1629
2415
if approval_required:
1630
2416
client.approvals_pending -= 1
1631
2417
try:
1632
2418
session.bye()
1633
except gnutls.errors.GNUTLSError as error:
1634
logger.warning("GnuTLS bye failed")
1635
2419
except gnutls.Error as error:
2420
logger.warning("GnuTLS bye failed",
2421
exc_info=error)
2422
1636
2423
@staticmethod
1637
2424
def peer_certificate(session):
1638
"Return the peer's OpenPGP certificate as a bytestring"
1639
# If not an OpenPGP certificate...
1640
if (gnutls.library.functions
1641
.gnutls_certificate_type_get(session._c_object)
1642
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1643
# ...do the normal thing
1644
return session.peer_certificate
2425
"Return the peer's certificate as a bytestring"
2426
try:
2427
cert_type = gnutls.certificate_type_get2(session._c_object,
2428
gnutls.CTYPE_PEERS)
2429
except AttributeError:
2430
cert_type = gnutls.certificate_type_get(session._c_object)
2431
if gnutls.has_rawpk:
2432
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2433
else:
2434
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2435
# If not a valid certificate type...
2436
if cert_type not in valid_cert_types:
2437
logger.info("Cert type %r not in %r", cert_type,
2438
valid_cert_types)
2439
# ...return invalid data
2440
return b""
1645
2441
list_size = ctypes.c_uint(1)
1646
cert_list = (gnutls.library.functions
1647
.gnutls_certificate_get_peers
2442
cert_list = (gnutls.certificate_get_peers
1648
2443
(session._c_object, ctypes.byref(list_size)))
1649
2444
if not bool(cert_list) and list_size.value != 0:
1650
raise gnutls.errors.GNUTLSError("error getting peer"
1651
" certificate")
2445
raise gnutls.Error("error getting peer certificate")
1652
2446
if list_size.value == 0:
1653
2447
return None
1654
2448
cert = cert_list[0]
1655
2449
return ctypes.string_at(cert.data, cert.size)
1656
2450
2451
@staticmethod
2452
def key_id(certificate):
2453
"Convert a certificate bytestring to a hexdigit key ID"
2454
# New GnuTLS "datum" with the public key
2455
datum = gnutls.datum_t(
2456
ctypes.cast(ctypes.c_char_p(certificate),
2457
ctypes.POINTER(ctypes.c_ubyte)),
2458
ctypes.c_uint(len(certificate)))
2459
# XXX all these need to be created in the gnutls "module"
2460
# New empty GnuTLS certificate
2461
pubkey = gnutls.pubkey_t()
2462
gnutls.pubkey_init(ctypes.byref(pubkey))
2463
# Import the raw public key into the certificate
2464
gnutls.pubkey_import(pubkey,
2465
ctypes.byref(datum),
2466
gnutls.X509_FMT_DER)
2467
# New buffer for the key ID
2468
buf = ctypes.create_string_buffer(32)
2469
buf_len = ctypes.c_size_t(len(buf))
2470
# Get the key ID from the raw public key into the buffer
2471
gnutls.pubkey_get_key_id(pubkey,
2472
gnutls.KEYID_USE_SHA256,
2473
ctypes.cast(ctypes.byref(buf),
2474
ctypes.POINTER(ctypes.c_ubyte)),
2475
ctypes.byref(buf_len))
2476
# Deinit the certificate
2477
gnutls.pubkey_deinit(pubkey)
2478
2479
# Convert the buffer to a Python bytestring
2480
key_id = ctypes.string_at(buf, buf_len.value)
2481
# Convert the bytestring to hexadecimal notation
2482
hex_key_id = binascii.hexlify(key_id).upper()
2483
return hex_key_id
2484
1657
2485
@staticmethod
1658
2486
def fingerprint(openpgp):
1659
2487
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1660
2488
# New GnuTLS "datum" with the OpenPGP public key
1661
datum = (gnutls.library.types
1662
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1663
ctypes.POINTER
1664
(ctypes.c_ubyte)),
1665
ctypes.c_uint(len(openpgp))))
2489
datum = gnutls.datum_t(
2490
ctypes.cast(ctypes.c_char_p(openpgp),
2491
ctypes.POINTER(ctypes.c_ubyte)),
2492
ctypes.c_uint(len(openpgp)))
1666
2493
# New empty GnuTLS certificate
1667
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1668
(gnutls.library.functions
1669
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2494
crt = gnutls.openpgp_crt_t()
2495
gnutls.openpgp_crt_init(ctypes.byref(crt))
1670
2496
# Import the OpenPGP public key into the certificate
1671
(gnutls.library.functions
1672
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1673
gnutls.library.constants
1674
.GNUTLS_OPENPGP_FMT_RAW))
2497
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2498
gnutls.OPENPGP_FMT_RAW)
1675
2499
# Verify the self signature in the key
1676
2500
crtverify = ctypes.c_uint()
1677
(gnutls.library.functions
1678
.gnutls_openpgp_crt_verify_self(crt, 0,
1679
ctypes.byref(crtverify)))
2501
gnutls.openpgp_crt_verify_self(crt, 0,
2502
ctypes.byref(crtverify))
1680
2503
if crtverify.value != 0:
1681
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1682
raise (gnutls.errors.CertificateSecurityError
1683
("Verify failed"))
2504
gnutls.openpgp_crt_deinit(crt)
2505
raise gnutls.CertificateSecurityError(code
2506
=crtverify.value)
1684
2507
# New buffer for the fingerprint
1685
2508
buf = ctypes.create_string_buffer(20)
1686
2509
buf_len = ctypes.c_size_t()
1687
2510
# Get the fingerprint from the certificate into the buffer
1688
(gnutls.library.functions
1689
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1690
ctypes.byref(buf_len)))
2511
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2512
ctypes.byref(buf_len))
1691
2513
# Deinit the certificate
1692
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2514
gnutls.openpgp_crt_deinit(crt)
1693
2515
# Convert the buffer to a Python bytestring
1694
2516
fpr = ctypes.string_at(buf, buf_len.value)
1695
2517
# Convert the bytestring to hexadecimal notation
1697
2519
return hex_fpr
1698
2520
1699
2521
1700
class MultiprocessingMixIn(object):
2522
class MultiprocessingMixIn:
1701
2523
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2524
1702
2525
def sub_process_main(self, request, address):
1703
2526
try:
1704
2527
self.finish_request(request, address)
1705
2528
except Exception:
1706
2529
self.handle_error(request, address)
1707
2530
self.close_request(request)
1708
2531
1709
2532
def process_request(self, request, address):
1710
2533
"""Start a new process to process the request."""
1711
proc = multiprocessing.Process(target = self.sub_process_main,
1712
args = (request,
1713
address))
2534
proc = multiprocessing.Process(target=self.sub_process_main,
2535
args=(request, address))
1714
2536
proc.start()
1715
2537
return proc
1716
2538
1717
2539
1718
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2540
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1719
2541
""" adds a pipe to the MixIn """
2542
1720
2543
def process_request(self, request, client_address):
1721
2544
"""Overrides and wraps the original process_request().
1722
2545
1723
2546
This function creates a new pipe in self.pipe
1724
2547
"""
1725
2548
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1726
2549
1727
2550
proc = MultiprocessingMixIn.process_request(self, request,
1728
2551
client_address)
1729
2552
self.child_pipe.close()
1730
2553
self.add_pipe(parent_pipe, proc)
1731
2554
1732
2555
def add_pipe(self, parent_pipe, proc):
1733
2556
"""Dummy function; override as necessary"""
1734
raise NotImplementedError
2557
raise NotImplementedError()
1735
2558
1736
2559
1737
2560
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1738
socketserver.TCPServer, object):
2561
socketserver.TCPServer):
1739
2562
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1740
2563
1741
2564
Attributes:
1742
2565
enabled: Boolean; whether this server is activated yet
1743
2566
interface: None or a network interface name (string)
1744
2567
use_ipv6: Boolean; to use IPv6 or not
1745
2568
"""
2569
1746
2570
def __init__(self, server_address, RequestHandlerClass,
1747
interface=None, use_ipv6=True):
2571
interface=None,
2572
use_ipv6=True,
2573
socketfd=None):
2574
"""If socketfd is set, use that file descriptor instead of
2575
creating a new one with socket.socket().
2576
"""
1748
2577
self.interface = interface
1749
2578
if use_ipv6:
1750
2579
self.address_family = socket.AF_INET6
2580
if socketfd is not None:
2581
# Save the file descriptor
2582
self.socketfd = socketfd
2583
# Save the original socket.socket() function
2584
self.socket_socket = socket.socket
2585
2586
# To implement --socket, we monkey patch socket.socket.
2587
#
2588
# (When socketserver.TCPServer is a new-style class, we
2589
# could make self.socket into a property instead of monkey
2590
# patching socket.socket.)
2591
#
2592
# Create a one-time-only replacement for socket.socket()
2593
@functools.wraps(socket.socket)
2594
def socket_wrapper(*args, **kwargs):
2595
# Restore original function so subsequent calls are
2596
# not affected.
2597
socket.socket = self.socket_socket
2598
del self.socket_socket
2599
# This time only, return a new socket object from the
2600
# saved file descriptor.
2601
return socket.fromfd(self.socketfd, *args, **kwargs)
2602
# Replace socket.socket() function with wrapper
2603
socket.socket = socket_wrapper
2604
# The socketserver.TCPServer.__init__ will call
2605
# socket.socket(), which might be our replacement,
2606
# socket_wrapper(), if socketfd was set.
1751
2607
socketserver.TCPServer.__init__(self, server_address,
1752
2608
RequestHandlerClass)
2609
1753
2610
def server_bind(self):
1754
2611
"""This overrides the normal server_bind() function
1755
2612
to bind to an interface if one was specified, and also NOT to
1756
2613
bind to an address or port if they were not specified."""
2614
global SO_BINDTODEVICE
1757
2615
if self.interface is not None:
1758
2616
if SO_BINDTODEVICE is None:
1759
logger.error("SO_BINDTODEVICE does not exist;"
1760
" cannot bind to interface %s",
1761
self.interface)
1762
else:
1763
try:
1764
self.socket.setsockopt(socket.SOL_SOCKET,
1765
SO_BINDTODEVICE,
1766
str(self.interface
1767
+ '\0'))
1768
except socket.error as error:
1769
if error[0] == errno.EPERM:
1770
logger.error("No permission to"
1771
" bind to interface %s",
1772
self.interface)
1773
elif error[0] == errno.ENOPROTOOPT:
1774
logger.error("SO_BINDTODEVICE not available;"
1775
" cannot bind to interface %s",
1776
self.interface)
1777
else:
1778
raise
2617
# Fall back to a hard-coded value which seems to be
2618
# common enough.
2619
logger.warning("SO_BINDTODEVICE not found, trying 25")
2620
SO_BINDTODEVICE = 25
2621
try:
2622
self.socket.setsockopt(
2623
socket.SOL_SOCKET, SO_BINDTODEVICE,
2624
(self.interface + "\0").encode("utf-8"))
2625
except socket.error as error:
2626
if error.errno == errno.EPERM:
2627
logger.error("No permission to bind to"
2628
" interface %s", self.interface)
2629
elif error.errno == errno.ENOPROTOOPT:
2630
logger.error("SO_BINDTODEVICE not available;"
2631
" cannot bind to interface %s",
2632
self.interface)
2633
elif error.errno == errno.ENODEV:
2634
logger.error("Interface %s does not exist,"
2635
" cannot bind", self.interface)
2636
else:
2637
raise
1779
2638
# Only bind(2) the socket if we really need to.
1780
2639
if self.server_address[0] or self.server_address[1]:
2640
if self.server_address[1]:
2641
self.allow_reuse_address = True
1781
2642
if not self.server_address[0]:
1782
2643
if self.address_family == socket.AF_INET6:
1783
any_address = "::" # in6addr_any
2644
any_address = "::" # in6addr_any
1784
2645
else:
1785
any_address = socket.INADDR_ANY
2646
any_address = "0.0.0.0" # INADDR_ANY
1786
2647
self.server_address = (any_address,
1787
2648
self.server_address[1])
1788
2649
elif not self.server_address[1]:
1789
self.server_address = (self.server_address[0],
1790
0)
2650
self.server_address = (self.server_address[0], 0)
1791
2651
# if self.interface:
1792
2652
# self.server_address = (self.server_address[0],
1793
2653
# 0, # port
1799
2659
1800
2660
class MandosServer(IPv6_TCPServer):
1801
2661
"""Mandos server.
1802
2662
1803
2663
Attributes:
1804
2664
clients: set of Client objects
1805
2665
gnutls_priority GnuTLS priority string
1806
2666
use_dbus: Boolean; to emit D-Bus signals or not
1807
1808
Assumes a gobject.MainLoop event loop.
2667
2668
Assumes a GLib.MainLoop event loop.
1809
2669
"""
2670
1810
2671
def __init__(self, server_address, RequestHandlerClass,
1811
interface=None, use_ipv6=True, clients=None,
1812
gnutls_priority=None, use_dbus=True):
2672
interface=None,
2673
use_ipv6=True,
2674
clients=None,
2675
gnutls_priority=None,
2676
use_dbus=True,
2677
socketfd=None):
1813
2678
self.enabled = False
1814
2679
self.clients = clients
1815
2680
if self.clients is None:
1818
2683
self.gnutls_priority = gnutls_priority
1819
2684
IPv6_TCPServer.__init__(self, server_address,
1820
2685
RequestHandlerClass,
1821
interface = interface,
1822
use_ipv6 = use_ipv6)
2686
interface=interface,
2687
use_ipv6=use_ipv6,
2688
socketfd=socketfd)
2689
1823
2690
def server_activate(self):
1824
2691
if self.enabled:
1825
2692
return socketserver.TCPServer.server_activate(self)
1826
2693
1827
2694
def enable(self):
1828
2695
self.enabled = True
1829
2696
1830
2697
def add_pipe(self, parent_pipe, proc):
1831
2698
# Call "handle_ipc" for both data and EOF events
1832
gobject.io_add_watch(parent_pipe.fileno(),
1833
gobject.IO_IN | gobject.IO_HUP,
1834
functools.partial(self.handle_ipc,
1835
parent_pipe =
1836
parent_pipe,
1837
proc = proc))
1838
1839
def handle_ipc(self, source, condition, parent_pipe=None,
1840
proc = None, client_object=None):
1841
condition_names = {
1842
gobject.IO_IN: "IN", # There is data to read.
1843
gobject.IO_OUT: "OUT", # Data can be written (without
1844
# blocking).
1845
gobject.IO_PRI: "PRI", # There is urgent data to read.
1846
gobject.IO_ERR: "ERR", # Error condition.
1847
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1848
# broken, usually for pipes and
1849
# sockets).
1850
}
1851
conditions_string = ' | '.join(name
1852
for cond, name in
1853
condition_names.iteritems()
1854
if cond & condition)
2699
GLib.io_add_watch(
2700
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2701
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2702
functools.partial(self.handle_ipc,
2703
parent_pipe=parent_pipe,
2704
proc=proc))
2705
2706
def handle_ipc(self, source, condition,
2707
parent_pipe=None,
2708
proc=None,
2709
client_object=None):
1855
2710
# error, or the other end of multiprocessing.Pipe has closed
1856
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2711
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1857
2712
# Wait for other process to exit
1858
2713
proc.join()
1859
2714
return False
1860
2715
1861
2716
# Read a request from the child
1862
2717
request = parent_pipe.recv()
1863
2718
command = request[0]
1864
2719
1865
2720
if command == 'init':
1866
fpr = request[1]
1867
address = request[2]
1868
1869
for c in self.clients.itervalues():
1870
if c.fingerprint == fpr:
2721
key_id = request[1].decode("ascii")
2722
fpr = request[2].decode("ascii")
2723
address = request[3]
2724
2725
for c in self.clients.values():
2726
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2727
continue
2728
if key_id and c.key_id == key_id:
2729
client = c
2730
break
2731
if fpr and c.fingerprint == fpr:
1871
2732
client = c
1872
2733
break
1873
2734
else:
1874
logger.info("Client not found for fingerprint: %s, ad"
1875
"dress: %s", fpr, address)
2735
logger.info("Client not found for key ID: %s, address"
2736
": %s", key_id or fpr, address)
1876
2737
if self.use_dbus:
1877
2738
# Emit D-Bus signal
1878
mandos_dbus_service.ClientNotFound(fpr,
2739
mandos_dbus_service.ClientNotFound(key_id or fpr,
1879
2740
address[0])
1880
2741
parent_pipe.send(False)
1881
2742
return False
1882
1883
gobject.io_add_watch(parent_pipe.fileno(),
1884
gobject.IO_IN | gobject.IO_HUP,
1885
functools.partial(self.handle_ipc,
1886
parent_pipe =
1887
parent_pipe,
1888
proc = proc,
1889
client_object =
1890
client))
2743
2744
GLib.io_add_watch(
2745
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2746
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2747
functools.partial(self.handle_ipc,
2748
parent_pipe=parent_pipe,
2749
proc=proc,
2750
client_object=client))
1891
2751
parent_pipe.send(True)
1892
2752
# remove the old hook in favor of the new above hook on
1893
2753
# same fileno
1896
2756
funcname = request[1]
1897
2757
args = request[2]
1898
2758
kwargs = request[3]
1899
2759
1900
2760
parent_pipe.send(('data', getattr(client_object,
1901
2761
funcname)(*args,
1902
**kwargs)))
1903
2762
**kwargs)))
2763
1904
2764
if command == 'getattr':
1905
2765
attrname = request[1]
1906
if callable(client_object.__getattribute__(attrname)):
1907
parent_pipe.send(('function',))
2766
if isinstance(client_object.__getattribute__(attrname),
2767
collections.abc.Callable):
2768
parent_pipe.send(('function', ))
1908
2769
else:
1909
parent_pipe.send(('data', client_object
1910
.__getattribute__(attrname)))
1911
2770
parent_pipe.send((
2771
'data', client_object.__getattribute__(attrname)))
2772
1912
2773
if command == 'setattr':
1913
2774
attrname = request[1]
1914
2775
value = request[2]
1915
2776
setattr(client_object, attrname, value)
1916
2777
1917
2778
return True
1918
2779
1919
2780
2781
def rfc3339_duration_to_delta(duration):
2782
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2783
2784
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2785
True
2786
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2787
True
2788
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2789
True
2790
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2791
True
2792
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2793
True
2794
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2795
True
2796
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2797
True
2798
"""
2799
2800
# Parsing an RFC 3339 duration with regular expressions is not
2801
# possible - there would have to be multiple places for the same
2802
# values, like seconds. The current code, while more esoteric, is
2803
# cleaner without depending on a parsing library. If Python had a
2804
# built-in library for parsing we would use it, but we'd like to
2805
# avoid excessive use of external libraries.
2806
2807
# New type for defining tokens, syntax, and semantics all-in-one
2808
Token = collections.namedtuple("Token", (
2809
"regexp", # To match token; if "value" is not None, must have
2810
# a "group" containing digits
2811
"value", # datetime.timedelta or None
2812
"followers")) # Tokens valid after this token
2813
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2814
# the "duration" ABNF definition in RFC 3339, Appendix A.
2815
token_end = Token(re.compile(r"$"), None, frozenset())
2816
token_second = Token(re.compile(r"(\d+)S"),
2817
datetime.timedelta(seconds=1),
2818
frozenset((token_end, )))
2819
token_minute = Token(re.compile(r"(\d+)M"),
2820
datetime.timedelta(minutes=1),
2821
frozenset((token_second, token_end)))
2822
token_hour = Token(re.compile(r"(\d+)H"),
2823
datetime.timedelta(hours=1),
2824
frozenset((token_minute, token_end)))
2825
token_time = Token(re.compile(r"T"),
2826
None,
2827
frozenset((token_hour, token_minute,
2828
token_second)))
2829
token_day = Token(re.compile(r"(\d+)D"),
2830
datetime.timedelta(days=1),
2831
frozenset((token_time, token_end)))
2832
token_month = Token(re.compile(r"(\d+)M"),
2833
datetime.timedelta(weeks=4),
2834
frozenset((token_day, token_end)))
2835
token_year = Token(re.compile(r"(\d+)Y"),
2836
datetime.timedelta(weeks=52),
2837
frozenset((token_month, token_end)))
2838
token_week = Token(re.compile(r"(\d+)W"),
2839
datetime.timedelta(weeks=1),
2840
frozenset((token_end, )))
2841
token_duration = Token(re.compile(r"P"), None,
2842
frozenset((token_year, token_month,
2843
token_day, token_time,
2844
token_week)))
2845
# Define starting values:
2846
# Value so far
2847
value = datetime.timedelta()
2848
found_token = None
2849
# Following valid tokens
2850
followers = frozenset((token_duration, ))
2851
# String left to parse
2852
s = duration
2853
# Loop until end token is found
2854
while found_token is not token_end:
2855
# Search for any currently valid tokens
2856
for token in followers:
2857
match = token.regexp.match(s)
2858
if match is not None:
2859
# Token found
2860
if token.value is not None:
2861
# Value found, parse digits
2862
factor = int(match.group(1), 10)
2863
# Add to value so far
2864
value += factor * token.value
2865
# Strip token from string
2866
s = token.regexp.sub("", s, 1)
2867
# Go to found token
2868
found_token = token
2869
# Set valid next tokens
2870
followers = found_token.followers
2871
break
2872
else:
2873
# No currently valid tokens were found
2874
raise ValueError("Invalid RFC 3339 duration: {!r}"
2875
.format(duration))
2876
# End token found
2877
return value
2878
2879
1920
2880
def string_to_delta(interval):
1921
2881
"""Parse a string and return a datetime.timedelta
1922
1923
>>> string_to_delta('7d')
1924
datetime.timedelta(7)
1925
>>> string_to_delta('60s')
1926
datetime.timedelta(0, 60)
1927
>>> string_to_delta('60m')
1928
datetime.timedelta(0, 3600)
1929
>>> string_to_delta('24h')
1930
datetime.timedelta(1)
1931
>>> string_to_delta('1w')
1932
datetime.timedelta(7)
1933
>>> string_to_delta('5m 30s')
1934
datetime.timedelta(0, 330)
2882
2883
>>> string_to_delta('7d') == datetime.timedelta(7)
2884
True
2885
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2886
True
2887
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2888
True
2889
>>> string_to_delta('24h') == datetime.timedelta(1)
2890
True
2891
>>> string_to_delta('1w') == datetime.timedelta(7)
2892
True
2893
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2894
True
1935
2895
"""
2896
2897
try:
2898
return rfc3339_duration_to_delta(interval)
2899
except ValueError:
2900
pass
2901
1936
2902
timevalue = datetime.timedelta(0)
1937
2903
for s in interval.split():
1938
2904
try:
1939
suffix = unicode(s[-1])
2905
suffix = s[-1]
1940
2906
value = int(s[:-1])
1941
2907
if suffix == "d":
1942
2908
delta = datetime.timedelta(value)
1949
2915
elif suffix == "w":
1950
2916
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1951
2917
else:
1952
raise ValueError("Unknown suffix %r" % suffix)
1953
except (ValueError, IndexError) as e:
2918
raise ValueError("Unknown suffix {!r}".format(suffix))
2919
except IndexError as e:
1954
2920
raise ValueError(*(e.args))
1955
2921
timevalue += delta
1956
2922
return timevalue
1957
2923
1958
2924
1959
def daemon(nochdir = False, noclose = False):
2925
def daemon(nochdir=False, noclose=False):
1960
2926
"""See daemon(3). Standard BSD Unix function.
1961
2927
1962
2928
This should really exist as os.daemon, but it doesn't (yet)."""
1963
2929
if os.fork():
1964
2930
sys.exit()
1969
2935
sys.exit()
1970
2936
if not noclose:
1971
2937
# Close all standard open file descriptors
1972
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2938
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1973
2939
if not stat.S_ISCHR(os.fstat(null).st_mode):
1974
2940
raise OSError(errno.ENODEV,
1975
"%s not a character device"
1976
% os.path.devnull)
2941
"{} not a character device"
2942
.format(os.devnull))
1977
2943
os.dup2(null, sys.stdin.fileno())
1978
2944
os.dup2(null, sys.stdout.fileno())
1979
2945
os.dup2(null, sys.stderr.fileno())
1982
2948
1983
2949
1984
2950
def main():
1985
2951
1986
2952
##################################################################
1987
2953
# Parsing of options, both command line and config file
1988
2954
1989
2955
parser = argparse.ArgumentParser()
1990
2956
parser.add_argument("-v", "--version", action="version",
1991
version = "%%(prog)s %s" % version,
2957
version="%(prog)s {}".format(version),
1992
2958
help="show version number and exit")
1993
2959
parser.add_argument("-i", "--interface", metavar="IF",
1994
2960
help="Bind to interface IF")
2000
2966
help="Run self-test")
2001
2967
parser.add_argument("--debug", action="store_true",
2002
2968
help="Debug mode; run in foreground and log"
2003
" to terminal")
2969
" to terminal", default=None)
2004
2970
parser.add_argument("--debuglevel", metavar="LEVEL",
2005
2971
help="Debug level for stdout output")
2006
2972
parser.add_argument("--priority", help="GnuTLS"
2013
2979
" files")
2014
2980
parser.add_argument("--no-dbus", action="store_false",
2015
2981
dest="use_dbus", help="Do not provide D-Bus"
2016
" system bus interface")
2982
" system bus interface", default=None)
2017
2983
parser.add_argument("--no-ipv6", action="store_false",
2018
dest="use_ipv6", help="Do not use IPv6")
2984
dest="use_ipv6", help="Do not use IPv6",
2985
default=None)
2019
2986
parser.add_argument("--no-restore", action="store_false",
2020
2987
dest="restore", help="Do not restore stored"
2021
" state")
2988
" state", default=None)
2989
parser.add_argument("--socket", type=int,
2990
help="Specify a file descriptor to a network"
2991
" socket to use instead of creating one")
2022
2992
parser.add_argument("--statedir", metavar="DIR",
2023
2993
help="Directory to save/restore state in")
2024
2994
parser.add_argument("--foreground", action="store_true",
2995
help="Run in foreground", default=None)
2996
parser.add_argument("--no-zeroconf", action="store_false",
2997
dest="zeroconf", help="Do not use Zeroconf",
2998
default=None)
2999
2025
3000
options = parser.parse_args()
2026
2027
if options.check:
2028
import doctest
2029
doctest.testmod()
2030
sys.exit()
2031
3001
2032
3002
# Default values for config file for server-global settings
2033
server_defaults = { "interface": "",
2034
"address": "",
2035
"port": "",
2036
"debug": "False",
2037
"priority":
2038
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2039
"servicename": "Mandos",
2040
"use_dbus": "True",
2041
"use_ipv6": "True",
2042
"debuglevel": "",
2043
"restore": "True",
2044
"statedir": "/var/lib/mandos"
2045
}
2046
3003
if gnutls.has_rawpk:
3004
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3005
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3006
else:
3007
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3008
":+SIGN-DSA-SHA256")
3009
server_defaults = {"interface": "",
3010
"address": "",
3011
"port": "",
3012
"debug": "False",
3013
"priority": priority,
3014
"servicename": "Mandos",
3015
"use_dbus": "True",
3016
"use_ipv6": "True",
3017
"debuglevel": "",
3018
"restore": "True",
3019
"socket": "",
3020
"statedir": "/var/lib/mandos",
3021
"foreground": "False",
3022
"zeroconf": "True",
3023
}
3024
del priority
3025
2047
3026
# Parse config file for server-global settings
2048
server_config = configparser.SafeConfigParser(server_defaults)
3027
server_config = configparser.ConfigParser(server_defaults)
2049
3028
del server_defaults
2050
server_config.read(os.path.join(options.configdir,
2051
"mandos.conf"))
2052
# Convert the SafeConfigParser object to a dict
3029
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3030
# Convert the ConfigParser object to a dict
2053
3031
server_settings = server_config.defaults()
2054
3032
# Use the appropriate methods on the non-string config options
2055
for option in ("debug", "use_dbus", "use_ipv6"):
3033
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3034
"foreground", "zeroconf"):
2056
3035
server_settings[option] = server_config.getboolean("DEFAULT",
2057
3036
option)
2058
3037
if server_settings["port"]:
2059
3038
server_settings["port"] = server_config.getint("DEFAULT",
2060
3039
"port")
3040
if server_settings["socket"]:
3041
server_settings["socket"] = server_config.getint("DEFAULT",
3042
"socket")
3043
# Later, stdin will, and stdout and stderr might, be dup'ed
3044
# over with an opened os.devnull. But we don't want this to
3045
# happen with a supplied network socket.
3046
if 0 <= server_settings["socket"] <= 2:
3047
server_settings["socket"] = os.dup(server_settings
3048
["socket"])
2061
3049
del server_config
2062
3050
2063
3051
# Override the settings from the config file with command line
2064
3052
# options, if set.
2065
3053
for option in ("interface", "address", "port", "debug",
2066
"priority", "servicename", "configdir",
2067
"use_dbus", "use_ipv6", "debuglevel", "restore",
2068
"statedir"):
3054
"priority", "servicename", "configdir", "use_dbus",
3055
"use_ipv6", "debuglevel", "restore", "statedir",
3056
"socket", "foreground", "zeroconf"):
2069
3057
value = getattr(options, option)
2070
3058
if value is not None:
2071
3059
server_settings[option] = value
2072
3060
del options
2073
3061
# Force all strings to be unicode
2074
3062
for option in server_settings.keys():
2075
if type(server_settings[option]) is str:
2076
server_settings[option] = unicode(server_settings[option])
3063
if isinstance(server_settings[option], bytes):
3064
server_settings[option] = (server_settings[option]
3065
.decode("utf-8"))
3066
# Force all boolean options to be boolean
3067
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3068
"foreground", "zeroconf"):
3069
server_settings[option] = bool(server_settings[option])
3070
# Debug implies foreground
3071
if server_settings["debug"]:
3072
server_settings["foreground"] = True
2077
3073
# Now we have our good server settings in "server_settings"
2078
3074
2079
3075
##################################################################
2080
3076
3077
if (not server_settings["zeroconf"]
3078
and not (server_settings["port"]
3079
or server_settings["socket"] != "")):
3080
parser.error("Needs port or socket to work without Zeroconf")
3081
2081
3082
# For convenience
2082
3083
debug = server_settings["debug"]
2083
3084
debuglevel = server_settings["debuglevel"]
2085
3086
use_ipv6 = server_settings["use_ipv6"]
2086
3087
stored_state_path = os.path.join(server_settings["statedir"],
2087
3088
stored_state_file)
2088
3089
foreground = server_settings["foreground"]
3090
zeroconf = server_settings["zeroconf"]
3091
2089
3092
if debug:
2090
3093
initlogger(debug, logging.DEBUG)
2091
3094
else:
2094
3097
else:
2095
3098
level = getattr(logging, debuglevel.upper())
2096
3099
initlogger(debug, level)
2097
3100
2098
3101
if server_settings["servicename"] != "Mandos":
2099
syslogger.setFormatter(logging.Formatter
2100
('Mandos (%s) [%%(process)d]:'
2101
' %%(levelname)s: %%(message)s'
2102
% server_settings["servicename"]))
2103
3102
syslogger.setFormatter(
3103
logging.Formatter('Mandos ({}) [%(process)d]:'
3104
' %(levelname)s: %(message)s'.format(
3105
server_settings["servicename"])))
3106
2104
3107
# Parse config file with clients
2105
client_config = configparser.SafeConfigParser(Client
2106
.client_defaults)
3108
client_config = configparser.ConfigParser(Client.client_defaults)
2107
3109
client_config.read(os.path.join(server_settings["configdir"],
2108
3110
"clients.conf"))
2109
3111
2110
3112
global mandos_dbus_service
2111
3113
mandos_dbus_service = None
2112
2113
tcp_server = MandosServer((server_settings["address"],
2114
server_settings["port"]),
2115
ClientHandler,
2116
interface=(server_settings["interface"]
2117
or None),
2118
use_ipv6=use_ipv6,
2119
gnutls_priority=
2120
server_settings["priority"],
2121
use_dbus=use_dbus)
2122
if not debug:
2123
pidfilename = "/var/run/mandos.pid"
2124
try:
2125
pidfile = open(pidfilename, "w")
2126
except IOError:
2127
logger.error("Could not open file %r", pidfilename)
2128
2129
try:
2130
uid = pwd.getpwnam("_mandos").pw_uid
2131
gid = pwd.getpwnam("_mandos").pw_gid
2132
except KeyError:
2133
try:
2134
uid = pwd.getpwnam("mandos").pw_uid
2135
gid = pwd.getpwnam("mandos").pw_gid
3114
3115
socketfd = None
3116
if server_settings["socket"] != "":
3117
socketfd = server_settings["socket"]
3118
tcp_server = MandosServer(
3119
(server_settings["address"], server_settings["port"]),
3120
ClientHandler,
3121
interface=(server_settings["interface"] or None),
3122
use_ipv6=use_ipv6,
3123
gnutls_priority=server_settings["priority"],
3124
use_dbus=use_dbus,
3125
socketfd=socketfd)
3126
if not foreground:
3127
pidfilename = "/run/mandos.pid"
3128
if not os.path.isdir("/run/."):
3129
pidfilename = "/var/run/mandos.pid"
3130
pidfile = None
3131
try:
3132
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3133
except IOError as e:
3134
logger.error("Could not open file %r", pidfilename,
3135
exc_info=e)
3136
3137
for name, group in (("_mandos", "_mandos"),
3138
("mandos", "mandos"),
3139
("nobody", "nogroup")):
3140
try:
3141
uid = pwd.getpwnam(name).pw_uid
3142
gid = pwd.getpwnam(group).pw_gid
3143
break
2136
3144
except KeyError:
2137
try:
2138
uid = pwd.getpwnam("nobody").pw_uid
2139
gid = pwd.getpwnam("nobody").pw_gid
2140
except KeyError:
2141
uid = 65534
2142
gid = 65534
3145
continue
3146
else:
3147
uid = 65534
3148
gid = 65534
2143
3149
try:
2144
3150
os.setgid(gid)
2145
3151
os.setuid(uid)
3152
if debug:
3153
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3154
gid))
2146
3155
except OSError as error:
2147
if error[0] != errno.EPERM:
2148
raise error
2149
3156
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3157
.format(uid, gid, os.strerror(error.errno)))
3158
if error.errno != errno.EPERM:
3159
raise
3160
2150
3161
if debug:
2151
3162
# Enable all possible GnuTLS debugging
2152
3163
2153
3164
# "Use a log level over 10 to enable all debugging options."
2154
3165
# - GnuTLS manual
2155
gnutls.library.functions.gnutls_global_set_log_level(11)
2156
2157
@gnutls.library.types.gnutls_log_func
3166
gnutls.global_set_log_level(11)
3167
3168
@gnutls.log_func
2158
3169
def debug_gnutls(level, string):
2159
3170
logger.debug("GnuTLS: %s", string[:-1])
2160
2161
(gnutls.library.functions
2162
.gnutls_global_set_log_function(debug_gnutls))
2163
3171
3172
gnutls.global_set_log_function(debug_gnutls)
3173
2164
3174
# Redirect stdin so all checkers get /dev/null
2165
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3175
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2166
3176
os.dup2(null, sys.stdin.fileno())
2167
3177
if null > 2:
2168
3178
os.close(null)
2169
3179
2170
3180
# Need to fork before connecting to D-Bus
2171
if not debug:
3181
if not foreground:
2172
3182
# Close all input and output, do double fork, etc.
2173
3183
daemon()
2174
2175
gobject.threads_init()
2176
3184
3185
if gi.version_info < (3, 10, 2):
3186
# multiprocessing will use threads, so before we use GLib we
3187
# need to inform GLib that threads will be used.
3188
GLib.threads_init()
3189
2177
3190
global main_loop
2178
3191
# From the Avahi example code
2179
DBusGMainLoop(set_as_default=True )
2180
main_loop = gobject.MainLoop()
3192
DBusGMainLoop(set_as_default=True)
3193
main_loop = GLib.MainLoop()
2181
3194
bus = dbus.SystemBus()
2182
3195
# End of Avahi example code
2183
3196
if use_dbus:
2184
3197
try:
2185
3198
bus_name = dbus.service.BusName("se.recompile.Mandos",
2186
bus, do_not_queue=True)
2187
old_bus_name = (dbus.service.BusName
2188
("se.bsnet.fukt.Mandos", bus,
2189
do_not_queue=True))
2190
except dbus.exceptions.NameExistsException as e:
2191
logger.error(unicode(e) + ", disabling D-Bus")
3199
bus,
3200
do_not_queue=True)
3201
old_bus_name = dbus.service.BusName(
3202
"se.bsnet.fukt.Mandos", bus,
3203
do_not_queue=True)
3204
except dbus.exceptions.DBusException as e:
3205
logger.error("Disabling D-Bus:", exc_info=e)
2192
3206
use_dbus = False
2193
3207
server_settings["use_dbus"] = False
2194
3208
tcp_server.use_dbus = False
2195
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2196
service = AvahiServiceToSyslog(name =
2197
server_settings["servicename"],
2198
servicetype = "_mandos._tcp",
2199
protocol = protocol, bus = bus)
2200
if server_settings["interface"]:
2201
service.interface = (if_nametoindex
2202
(str(server_settings["interface"])))
2203
3209
if zeroconf:
3210
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3211
service = AvahiServiceToSyslog(
3212
name=server_settings["servicename"],
3213
servicetype="_mandos._tcp",
3214
protocol=protocol,
3215
bus=bus)
3216
if server_settings["interface"]:
3217
service.interface = if_nametoindex(
3218
server_settings["interface"].encode("utf-8"))
3219
2204
3220
global multiprocessing_manager
2205
3221
multiprocessing_manager = multiprocessing.Manager()
2206
3222
2207
3223
client_class = Client
2208
3224
if use_dbus:
2209
client_class = functools.partial(ClientDBusTransitional,
2210
bus = bus)
2211
3225
client_class = functools.partial(ClientDBus, bus=bus)
3226
2212
3227
client_settings = Client.config_parser(client_config)
2213
3228
old_client_settings = {}
2214
3229
clients_data = {}
2215
3230
3231
# This is used to redirect stdout and stderr for checker processes
3232
global wnull
3233
wnull = open(os.devnull, "w") # A writable /dev/null
3234
# Only used if server is running in foreground but not in debug
3235
# mode
3236
if debug or not foreground:
3237
wnull.close()
3238
2216
3239
# Get client data and settings from last running state.
2217
3240
if server_settings["restore"]:
2218
3241
try:
2219
3242
with open(stored_state_path, "rb") as stored_state:
2220
clients_data, old_client_settings = (pickle.load
2221
(stored_state))
3243
if sys.version_info.major == 2:
3244
clients_data, old_client_settings = pickle.load(
3245
stored_state)
3246
else:
3247
bytes_clients_data, bytes_old_client_settings = (
3248
pickle.load(stored_state, encoding="bytes"))
3249
# Fix bytes to strings
3250
# clients_data
3251
# .keys()
3252
clients_data = {(key.decode("utf-8")
3253
if isinstance(key, bytes)
3254
else key): value
3255
for key, value in
3256
bytes_clients_data.items()}
3257
del bytes_clients_data
3258
for key in clients_data:
3259
value = {(k.decode("utf-8")
3260
if isinstance(k, bytes) else k): v
3261
for k, v in
3262
clients_data[key].items()}
3263
clients_data[key] = value
3264
# .client_structure
3265
value["client_structure"] = [
3266
(s.decode("utf-8")
3267
if isinstance(s, bytes)
3268
else s) for s in
3269
value["client_structure"]]
3270
# .name, .host, and .checker_command
3271
for k in ("name", "host", "checker_command"):
3272
if isinstance(value[k], bytes):
3273
value[k] = value[k].decode("utf-8")
3274
if "key_id" not in value:
3275
value["key_id"] = ""
3276
elif "fingerprint" not in value:
3277
value["fingerprint"] = ""
3278
# old_client_settings
3279
# .keys()
3280
old_client_settings = {
3281
(key.decode("utf-8")
3282
if isinstance(key, bytes)
3283
else key): value
3284
for key, value in
3285
bytes_old_client_settings.items()}
3286
del bytes_old_client_settings
3287
# .host and .checker_command
3288
for value in old_client_settings.values():
3289
for attribute in ("host", "checker_command"):
3290
if isinstance(value[attribute], bytes):
3291
value[attribute] = (value[attribute]
3292
.decode("utf-8"))
2222
3293
os.remove(stored_state_path)
2223
3294
except IOError as e:
2224
logger.warning("Could not load persistent state: {0}"
2225
.format(e))
2226
if e.errno != errno.ENOENT:
3295
if e.errno == errno.ENOENT:
3296
logger.warning("Could not load persistent state:"
3297
" {}".format(os.strerror(e.errno)))
3298
else:
3299
logger.critical("Could not load persistent state:",
3300
exc_info=e)
2227
3301
raise
2228
3302
except EOFError as e:
2229
3303
logger.warning("Could not load persistent state: "
2230
"EOFError: {0}".format(e))
2231
3304
"EOFError:",
3305
exc_info=e)
3306
2232
3307
with PGPEngine() as pgp:
2233
for client_name, client in clients_data.iteritems():
3308
for client_name, client in clients_data.items():
3309
# Skip removed clients
3310
if client_name not in client_settings:
3311
continue
3312
2234
3313
# Decide which value to use after restoring saved state.
2235
3314
# We have three different values: Old config file,
2236
3315
# new config file, and saved state.
2241
3320
# For each value in new config, check if it
2242
3321
# differs from the old config value (Except for
2243
3322
# the "secret" attribute)
2244
if (name != "secret" and
2245
value != old_client_settings[client_name]
2246
[name]):
3323
if (name != "secret"
3324
and (value !=
3325
old_client_settings[client_name][name])):
2247
3326
client[name] = value
2248
3327
except KeyError:
2249
3328
pass
2250
3329
2251
3330
# Clients who has passed its expire date can still be
2252
# enabled if its last checker was successful. Clients
2253
# whose checker failed before we stored its state is
2254
# assumed to have failed all checkers during downtime.
3331
# enabled if its last checker was successful. A Client
3332
# whose checker succeeded before we stored its state is
3333
# assumed to have successfully run all checkers during
3334
# downtime.
2255
3335
if client["enabled"]:
2256
3336
if datetime.datetime.utcnow() >= client["expires"]:
2257
3337
if not client["last_checked_ok"]:
2258
3338
logger.warning(
2259
"disabling client {0} - Client never "
2260
"performed a successfull checker"
2261
.format(client["name"]))
3339
"disabling client {} - Client never "
3340
"performed a successful checker".format(
3341
client_name))
2262
3342
client["enabled"] = False
2263
3343
elif client["last_checker_status"] != 0:
2264
3344
logger.warning(
2265
"disabling client {0} - Client "
2266
"last checker failed with error code {1}"
2267
.format(client["name"],
2268
client["last_checker_status"]))
3345
"disabling client {} - Client last"
3346
" checker failed with error code"
3347
" {}".format(
3348
client_name,
3349
client["last_checker_status"]))
2269
3350
client["enabled"] = False
2270
3351
else:
2271
client["expires"] = (datetime.datetime
2272
.utcnow()
2273
+ client["timeout"])
3352
client["expires"] = (
3353
datetime.datetime.utcnow()
3354
+ client["timeout"])
2274
3355
logger.debug("Last checker succeeded,"
2275
" keeping {0} enabled"
2276
.format(client["name"]))
3356
" keeping {} enabled".format(
3357
client_name))
2277
3358
try:
2278
client["secret"] = (
2279
pgp.decrypt(client["encrypted_secret"],
2280
client_settings[client_name]
2281
["secret"]))
3359
client["secret"] = pgp.decrypt(
3360
client["encrypted_secret"],
3361
client_settings[client_name]["secret"])
2282
3362
except PGPError:
2283
3363
# If decryption fails, we use secret from new settings
2284
logger.debug("Failed to decrypt {0} old secret"
2285
.format(client_name))
2286
client["secret"] = (
2287
client_settings[client_name]["secret"])
3364
logger.debug("Failed to decrypt {} old secret".format(
3365
client_name))
3366
client["secret"] = (client_settings[client_name]
3367
["secret"])
2288
3368
2289
2290
3369
# Add/remove clients based on new changes made to config
2291
3370
for client_name in (set(old_client_settings)
2292
3371
- set(client_settings)):
2295
3374
- set(old_client_settings)):
2296
3375
clients_data[client_name] = client_settings[client_name]
2297
3376
2298
# Create clients all clients
2299
for client_name, client in clients_data.iteritems():
3377
# Create all client objects
3378
for client_name, client in clients_data.items():
2300
3379
tcp_server.clients[client_name] = client_class(
2301
name = client_name, settings = client)
2302
3380
name=client_name,
3381
settings=client,
3382
server_settings=server_settings)
3383
2303
3384
if not tcp_server.clients:
2304
3385
logger.warning("No clients defined")
2305
2306
if not debug:
2307
try:
2308
with pidfile:
2309
pid = os.getpid()
2310
pidfile.write(str(pid) + "\n".encode("utf-8"))
2311
del pidfile
2312
except IOError:
2313
logger.error("Could not write to file %r with PID %d",
2314
pidfilename, pid)
2315
except NameError:
2316
# "pidfile" was never created
2317
pass
3386
3387
if not foreground:
3388
if pidfile is not None:
3389
pid = os.getpid()
3390
try:
3391
with pidfile:
3392
print(pid, file=pidfile)
3393
except IOError:
3394
logger.error("Could not write to file %r with PID %d",
3395
pidfilename, pid)
3396
del pidfile
2318
3397
del pidfilename
2319
signal.signal(signal.SIGINT, signal.SIG_IGN)
2320
2321
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2322
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2323
3398
3399
for termsig in (signal.SIGHUP, signal.SIGTERM):
3400
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3401
lambda: main_loop.quit() and False)
3402
2324
3403
if use_dbus:
2325
class MandosDBusService(dbus.service.Object):
3404
3405
@alternate_dbus_interfaces(
3406
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3407
class MandosDBusService(DBusObjectWithObjectManager):
2326
3408
"""A D-Bus proxy object"""
3409
2327
3410
def __init__(self):
2328
3411
dbus.service.Object.__init__(self, bus, "/")
3412
2329
3413
_interface = "se.recompile.Mandos"
2330
3414
2331
3415
@dbus.service.signal(_interface, signature="o")
2332
3416
def ClientAdded(self, objpath):
2333
3417
"D-Bus signal"
2334
3418
pass
2335
3419
2336
3420
@dbus.service.signal(_interface, signature="ss")
2337
def ClientNotFound(self, fingerprint, address):
3421
def ClientNotFound(self, key_id, address):
2338
3422
"D-Bus signal"
2339
3423
pass
2340
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2341
3427
@dbus.service.signal(_interface, signature="os")
2342
3428
def ClientRemoved(self, objpath, name):
2343
3429
"D-Bus signal"
2344
3430
pass
2345
3431
3432
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3433
"true"})
2346
3434
@dbus.service.method(_interface, out_signature="ao")
2347
3435
def GetAllClients(self):
2348
3436
"D-Bus method"
2349
return dbus.Array(c.dbus_object_path
2350
for c in
2351
tcp_server.clients.itervalues())
2352
3437
return dbus.Array(c.dbus_object_path for c in
3438
tcp_server.clients.values())
3439
3440
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3441
"true"})
2353
3442
@dbus.service.method(_interface,
2354
3443
out_signature="a{oa{sv}}")
2355
3444
def GetAllClientsWithProperties(self):
2356
3445
"D-Bus method"
2357
3446
return dbus.Dictionary(
2358
((c.dbus_object_path, c.GetAll(""))
2359
for c in tcp_server.clients.itervalues()),
3447
{c.dbus_object_path: c.GetAll(
3448
"se.recompile.Mandos.Client")
3449
for c in tcp_server.clients.values()},
2360
3450
signature="oa{sv}")
2361
3451
2362
3452
@dbus.service.method(_interface, in_signature="o")
2363
3453
def RemoveClient(self, object_path):
2364
3454
"D-Bus method"
2365
for c in tcp_server.clients.itervalues():
3455
for c in tcp_server.clients.values():
2366
3456
if c.dbus_object_path == object_path:
2367
3457
del tcp_server.clients[c.name]
2368
3458
c.remove_from_connection()
2369
# Don't signal anything except ClientRemoved
3459
# Don't signal the disabling
2370
3460
c.disable(quiet=True)
2371
# Emit D-Bus signal
2372
self.ClientRemoved(object_path, c.name)
3461
# Emit D-Bus signal for removal
3462
self.client_removed_signal(c)
2373
3463
return
2374
3464
raise KeyError(object_path)
2375
3465
2376
3466
del _interface
2377
2378
class MandosDBusServiceTransitional(MandosDBusService):
2379
__metaclass__ = AlternateDBusNamesMetaclass
2380
mandos_dbus_service = MandosDBusServiceTransitional()
2381
3467
3468
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3469
out_signature="a{oa{sa{sv}}}")
3470
def GetManagedObjects(self):
3471
"""D-Bus method"""
3472
return dbus.Dictionary(
3473
{client.dbus_object_path:
3474
dbus.Dictionary(
3475
{interface: client.GetAll(interface)
3476
for interface in
3477
client._get_all_interface_names()})
3478
for client in tcp_server.clients.values()})
3479
3480
def client_added_signal(self, client):
3481
"""Send the new standard signal and the old signal"""
3482
if use_dbus:
3483
# New standard signal
3484
self.InterfacesAdded(
3485
client.dbus_object_path,
3486
dbus.Dictionary(
3487
{interface: client.GetAll(interface)
3488
for interface in
3489
client._get_all_interface_names()}))
3490
# Old signal
3491
self.ClientAdded(client.dbus_object_path)
3492
3493
def client_removed_signal(self, client):
3494
"""Send the new standard signal and the old signal"""
3495
if use_dbus:
3496
# New standard signal
3497
self.InterfacesRemoved(
3498
client.dbus_object_path,
3499
client._get_all_interface_names())
3500
# Old signal
3501
self.ClientRemoved(client.dbus_object_path,
3502
client.name)
3503
3504
mandos_dbus_service = MandosDBusService()
3505
3506
# Save modules to variables to exempt the modules from being
3507
# unloaded before the function registered with atexit() is run.
3508
mp = multiprocessing
3509
wn = wnull
3510
2382
3511
def cleanup():
2383
3512
"Cleanup function; run on exit"
2384
service.cleanup()
2385
2386
multiprocessing.active_children()
3513
if zeroconf:
3514
service.cleanup()
3515
3516
mp.active_children()
3517
wn.close()
2387
3518
if not (tcp_server.clients or client_settings):
2388
3519
return
2389
3520
2390
3521
# Store client before exiting. Secrets are encrypted with key
2391
3522
# based on what config file has. If config file is
2392
3523
# removed/edited, old secret will thus be unrecovable.
2393
3524
clients = {}
2394
3525
with PGPEngine() as pgp:
2395
for client in tcp_server.clients.itervalues():
3526
for client in tcp_server.clients.values():
2396
3527
key = client_settings[client.name]["secret"]
2397
3528
client.encrypted_secret = pgp.encrypt(client.secret,
2398
3529
key)
2399
3530
client_dict = {}
2400
3531
2401
3532
# A list of attributes that can not be pickled
2402
3533
# + secret.
2403
exclude = set(("bus", "changedstate", "secret",
2404
"checker"))
2405
for name, typ in (inspect.getmembers
2406
(dbus.service.Object)):
3534
exclude = {"bus", "changedstate", "secret",
3535
"checker", "server_settings"}
3536
for name, typ in inspect.getmembers(dbus.service
3537
.Object):
2407
3538
exclude.add(name)
2408
3539
2409
3540
client_dict["encrypted_secret"] = (client
2410
3541
.encrypted_secret)
2411
3542
for attr in client.client_structure:
2412
3543
if attr not in exclude:
2413
3544
client_dict[attr] = getattr(client, attr)
2414
3545
2415
3546
clients[client.name] = client_dict
2416
3547
del client_settings[client.name]["secret"]
2417
3548
2418
3549
try:
2419
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2420
prefix="clients-",
2421
dir=os.path.dirname
2422
(stored_state_path))
2423
with os.fdopen(tempfd, "wb") as stored_state:
2424
pickle.dump((clients, client_settings), stored_state)
3550
with tempfile.NamedTemporaryFile(
3551
mode='wb',
3552
suffix=".pickle",
3553
prefix='clients-',
3554
dir=os.path.dirname(stored_state_path),
3555
delete=False) as stored_state:
3556
pickle.dump((clients, client_settings), stored_state,
3557
protocol=2)
3558
tempname = stored_state.name
2425
3559
os.rename(tempname, stored_state_path)
2426
3560
except (IOError, OSError) as e:
2427
logger.warning("Could not save persistent state: {0}"
2428
.format(e))
2429
3561
if not debug:
2430
3562
try:
2431
3563
os.remove(tempname)
2432
3564
except NameError:
2433
3565
pass
2434
if e.errno not in set((errno.ENOENT, errno.EACCES,
2435
errno.EEXIST)):
2436
raise e
2437
3566
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3567
logger.warning("Could not save persistent state: {}"
3568
.format(os.strerror(e.errno)))
3569
else:
3570
logger.warning("Could not save persistent state:",
3571
exc_info=e)
3572
raise
3573
2438
3574
# Delete all clients, and settings from config
2439
3575
while tcp_server.clients:
2440
3576
name, client = tcp_server.clients.popitem()
2441
3577
if use_dbus:
2442
3578
client.remove_from_connection()
2443
# Don't signal anything except ClientRemoved
3579
# Don't signal the disabling
2444
3580
client.disable(quiet=True)
3581
# Emit D-Bus signal for removal
2445
3582
if use_dbus:
2446
# Emit D-Bus signal
2447
mandos_dbus_service.ClientRemoved(client
2448
.dbus_object_path,
2449
client.name)
3583
mandos_dbus_service.client_removed_signal(client)
2450
3584
client_settings.clear()
2451
3585
2452
3586
atexit.register(cleanup)
2453
2454
for client in tcp_server.clients.itervalues():
3587
3588
for client in tcp_server.clients.values():
2455
3589
if use_dbus:
2456
# Emit D-Bus signal
2457
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3590
# Emit D-Bus signal for adding
3591
mandos_dbus_service.client_added_signal(client)
2458
3592
# Need to initiate checking of clients
2459
3593
if client.enabled:
2460
3594
client.init_checker()
2461
3595
2462
3596
tcp_server.enable()
2463
3597
tcp_server.server_activate()
2464
3598
2465
3599
# Find out what port we got
2466
service.port = tcp_server.socket.getsockname()[1]
3600
if zeroconf:
3601
service.port = tcp_server.socket.getsockname()[1]
2467
3602
if use_ipv6:
2468
3603
logger.info("Now listening on address %r, port %d,"
2469
" flowinfo %d, scope_id %d"
2470
% tcp_server.socket.getsockname())
3604
" flowinfo %d, scope_id %d",
3605
*tcp_server.socket.getsockname())
2471
3606
else: # IPv4
2472
logger.info("Now listening on address %r, port %d"
2473
% tcp_server.socket.getsockname())
2474
2475
#service.interface = tcp_server.socket.getsockname()[3]
2476
3607
logger.info("Now listening on address %r, port %d",
3608
*tcp_server.socket.getsockname())
3609
3610
# service.interface = tcp_server.socket.getsockname()[3]
3611
2477
3612
try:
2478
# From the Avahi example code
2479
try:
2480
service.activate()
2481
except dbus.exceptions.DBusException as error:
2482
logger.critical("DBusException: %s", error)
2483
cleanup()
2484
sys.exit(1)
2485
# End of Avahi example code
2486
2487
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2488
lambda *args, **kwargs:
2489
(tcp_server.handle_request
2490
(*args[2:], **kwargs) or True))
2491
3613
if zeroconf:
3614
# From the Avahi example code
3615
try:
3616
service.activate()
3617
except dbus.exceptions.DBusException as error:
3618
logger.critical("D-Bus Exception", exc_info=error)
3619
cleanup()
3620
sys.exit(1)
3621
# End of Avahi example code
3622
3623
GLib.io_add_watch(
3624
GLib.IOChannel.unix_new(tcp_server.fileno()),
3625
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3626
lambda *args, **kwargs: (tcp_server.handle_request
3627
(*args[2:], **kwargs) or True))
3628
2492
3629
logger.debug("Starting main loop")
2493
3630
main_loop.run()
2494
3631
except AvahiError as error:
2495
logger.critical("AvahiError: %s", error)
3632
logger.critical("Avahi Error", exc_info=error)
2496
3633
cleanup()
2497
3634
sys.exit(1)
2498
3635
except KeyboardInterrupt:
2503
3640
# Must run before the D-Bus bus name gets deregistered
2504
3641
cleanup()
2505
3642
3643
3644
def should_only_run_tests():
3645
parser = argparse.ArgumentParser(add_help=False)
3646
parser.add_argument("--check", action='store_true')
3647
args, unknown_args = parser.parse_known_args()
3648
run_tests = args.check
3649
if run_tests:
3650
# Remove --check argument from sys.argv
3651
sys.argv[1:] = unknown_args
3652
return run_tests
3653
3654
# Add all tests from doctest strings
3655
def load_tests(loader, tests, none):
3656
import doctest
3657
tests.addTests(doctest.DocTestSuite())
3658
return tests
3659
2506
3660
if __name__ == '__main__':
2507
main()
3661
try:
3662
if should_only_run_tests():
3663
# Call using ./mandos --check [--verbose]
3664
unittest.main()
3665
else:
3666
main()
3667
finally:
3668
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0