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- Committer: Teddy Hogeborn
- Date: 2019-10-20 01:48:38 UTC
- Revision ID: teddy@recompile.se-20191020014838-w0pin3z8oe6he6gn
Update comment text
* dracut-module/password-agent.c (task_func): Fix comment to not still
call this type
"func_type".
* dracut-module/password-agent.c (task_func): Fix comment to not still
call this type
"func_type".
- 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 -b
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
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 © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
31
32
# Contact the authors at <mandos@recompile.se>.
32
#
33
#
33
34
34
35
from __future__ import (division, absolute_import, print_function,
35
36
unicode_literals)
36
37
37
import SocketServer as socketserver
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
38
47
import socket
39
48
import argparse
40
49
import datetime
41
50
import errno
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
49
55
import sys
50
56
import re
51
57
import os
60
66
import struct
61
67
import fcntl
62
68
import functools
63
import cPickle as pickle
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
64
73
import multiprocessing
65
74
import types
66
75
import binascii
67
76
import tempfile
68
77
import itertools
78
import collections
79
import codecs
80
import unittest
69
81
70
82
import dbus
71
83
import dbus.service
72
import gobject
73
import avahi
84
import gi
85
from gi.repository import GLib
74
86
from dbus.mainloop.glib import DBusGMainLoop
75
87
import ctypes
76
88
import ctypes.util
77
89
import xml.dom.minidom
78
90
import inspect
79
import GnuPGInterface
80
91
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
95
# Show warnings by default
96
if not sys.warnoptions:
97
import warnings
98
warnings.simplefilter("default")
99
100
# Try to find the value of SO_BINDTODEVICE:
81
101
try:
102
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
103
# newer, and it is also the most natural place for it:
82
104
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
83
105
except AttributeError:
84
106
try:
107
# This is where SO_BINDTODEVICE was up to and including Python
108
# 2.6, and also 3.2:
85
109
from IN import SO_BINDTODEVICE
86
110
except ImportError:
87
SO_BINDTODEVICE = None
88
89
version = "1.5.3"
111
# In Python 2.7 it seems to have been removed entirely.
112
# Try running the C preprocessor:
113
try:
114
cc = subprocess.Popen(["cc", "--language=c", "-E",
115
"/dev/stdin"],
116
stdin=subprocess.PIPE,
117
stdout=subprocess.PIPE)
118
stdout = cc.communicate(
119
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
120
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
121
except (OSError, ValueError, IndexError):
122
# No value found
123
SO_BINDTODEVICE = None
124
125
if sys.version_info.major == 2:
126
str = unicode
127
128
if sys.version_info < (3, 2):
129
configparser.Configparser = configparser.SafeConfigParser
130
131
version = "1.8.9"
90
132
stored_state_file = "clients.pickle"
91
133
92
134
logger = logging.getLogger()
93
syslogger = (logging.handlers.SysLogHandler
94
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
95
address = str("/dev/log")))
135
logging.captureWarnings(True) # Show warnings via the logging system
136
syslogger = None
96
137
97
138
try:
98
if_nametoindex = (ctypes.cdll.LoadLibrary
99
(ctypes.util.find_library("c"))
100
.if_nametoindex)
139
if_nametoindex = ctypes.cdll.LoadLibrary(
140
ctypes.util.find_library("c")).if_nametoindex
101
141
except (OSError, AttributeError):
142
102
143
def if_nametoindex(interface):
103
144
"Get an interface index the hard way, i.e. using fcntl()"
104
145
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
105
146
with contextlib.closing(socket.socket()) as s:
106
147
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
107
struct.pack(str("16s16x"),
108
interface))
109
interface_index = struct.unpack(str("I"),
110
ifreq[16:20])[0]
148
struct.pack(b"16s16x", interface))
149
interface_index = struct.unpack("I", ifreq[16:20])[0]
111
150
return interface_index
112
151
113
152
153
def copy_function(func):
154
"""Make a copy of a function"""
155
if sys.version_info.major == 2:
156
return types.FunctionType(func.func_code,
157
func.func_globals,
158
func.func_name,
159
func.func_defaults,
160
func.func_closure)
161
else:
162
return types.FunctionType(func.__code__,
163
func.__globals__,
164
func.__name__,
165
func.__defaults__,
166
func.__closure__)
167
168
114
169
def initlogger(debug, level=logging.WARNING):
115
170
"""init logger and add loglevel"""
116
171
172
global syslogger
173
syslogger = (logging.handlers.SysLogHandler(
174
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
175
address="/dev/log"))
117
176
syslogger.setFormatter(logging.Formatter
118
177
('Mandos [%(process)d]: %(levelname)s:'
119
178
' %(message)s'))
120
179
logger.addHandler(syslogger)
121
180
122
181
if debug:
123
182
console = logging.StreamHandler()
124
183
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
134
193
pass
135
194
136
195
137
class PGPEngine(object):
196
class PGPEngine:
138
197
"""A simple class for OpenPGP symmetric encryption & decryption"""
198
139
199
def __init__(self):
140
self.gnupg = GnuPGInterface.GnuPG()
141
200
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
142
self.gnupg = GnuPGInterface.GnuPG()
143
self.gnupg.options.meta_interactive = False
144
self.gnupg.options.homedir = self.tempdir
145
self.gnupg.options.extra_args.extend(['--force-mdc',
146
'--quiet',
147
'--no-use-agent'])
148
201
self.gpg = "gpg"
202
try:
203
output = subprocess.check_output(["gpgconf"])
204
for line in output.splitlines():
205
name, text, path = line.split(b":")
206
if name == b"gpg":
207
self.gpg = path
208
break
209
except OSError as e:
210
if e.errno != errno.ENOENT:
211
raise
212
self.gnupgargs = ['--batch',
213
'--homedir', self.tempdir,
214
'--force-mdc',
215
'--quiet']
216
# Only GPG version 1 has the --no-use-agent option.
217
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
218
self.gnupgargs.append("--no-use-agent")
219
149
220
def __enter__(self):
150
221
return self
151
152
def __exit__ (self, exc_type, exc_value, traceback):
222
223
def __exit__(self, exc_type, exc_value, traceback):
153
224
self._cleanup()
154
225
return False
155
226
156
227
def __del__(self):
157
228
self._cleanup()
158
229
159
230
def _cleanup(self):
160
231
if self.tempdir is not None:
161
232
# Delete contents of tempdir
162
233
for root, dirs, files in os.walk(self.tempdir,
163
topdown = False):
234
topdown=False):
164
235
for filename in files:
165
236
os.remove(os.path.join(root, filename))
166
237
for dirname in dirs:
168
239
# Remove tempdir
169
240
os.rmdir(self.tempdir)
170
241
self.tempdir = None
171
242
172
243
def password_encode(self, password):
173
244
# Passphrase can not be empty and can not contain newlines or
174
245
# NUL bytes. So we prefix it and hex encode it.
175
return b"mandos" + binascii.hexlify(password)
176
246
encoded = b"mandos" + binascii.hexlify(password)
247
if len(encoded) > 2048:
248
# GnuPG can't handle long passwords, so encode differently
249
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
250
.replace(b"\n", b"\\n")
251
.replace(b"\0", b"\\x00"))
252
return encoded
253
177
254
def encrypt(self, data, password):
178
self.gnupg.passphrase = self.password_encode(password)
179
with open(os.devnull, "w") as devnull:
180
try:
181
proc = self.gnupg.run(['--symmetric'],
182
create_fhs=['stdin', 'stdout'],
183
attach_fhs={'stderr': devnull})
184
with contextlib.closing(proc.handles['stdin']) as f:
185
f.write(data)
186
with contextlib.closing(proc.handles['stdout']) as f:
187
ciphertext = f.read()
188
proc.wait()
189
except IOError as e:
190
raise PGPError(e)
191
self.gnupg.passphrase = None
255
passphrase = self.password_encode(password)
256
with tempfile.NamedTemporaryFile(
257
dir=self.tempdir) as passfile:
258
passfile.write(passphrase)
259
passfile.flush()
260
proc = subprocess.Popen([self.gpg, '--symmetric',
261
'--passphrase-file',
262
passfile.name]
263
+ self.gnupgargs,
264
stdin=subprocess.PIPE,
265
stdout=subprocess.PIPE,
266
stderr=subprocess.PIPE)
267
ciphertext, err = proc.communicate(input=data)
268
if proc.returncode != 0:
269
raise PGPError(err)
192
270
return ciphertext
193
271
194
272
def decrypt(self, data, password):
195
self.gnupg.passphrase = self.password_encode(password)
196
with open(os.devnull, "w") as devnull:
197
try:
198
proc = self.gnupg.run(['--decrypt'],
199
create_fhs=['stdin', 'stdout'],
200
attach_fhs={'stderr': devnull})
201
with contextlib.closing(proc.handles['stdin']) as f:
202
f.write(data)
203
with contextlib.closing(proc.handles['stdout']) as f:
204
decrypted_plaintext = f.read()
205
proc.wait()
206
except IOError as e:
207
raise PGPError(e)
208
self.gnupg.passphrase = None
273
passphrase = self.password_encode(password)
274
with tempfile.NamedTemporaryFile(
275
dir=self.tempdir) as passfile:
276
passfile.write(passphrase)
277
passfile.flush()
278
proc = subprocess.Popen([self.gpg, '--decrypt',
279
'--passphrase-file',
280
passfile.name]
281
+ self.gnupgargs,
282
stdin=subprocess.PIPE,
283
stdout=subprocess.PIPE,
284
stderr=subprocess.PIPE)
285
decrypted_plaintext, err = proc.communicate(input=data)
286
if proc.returncode != 0:
287
raise PGPError(err)
209
288
return decrypted_plaintext
210
289
211
290
291
# Pretend that we have an Avahi module
292
class avahi:
293
"""This isn't so much a class as it is a module-like namespace."""
294
IF_UNSPEC = -1 # avahi-common/address.h
295
PROTO_UNSPEC = -1 # avahi-common/address.h
296
PROTO_INET = 0 # avahi-common/address.h
297
PROTO_INET6 = 1 # avahi-common/address.h
298
DBUS_NAME = "org.freedesktop.Avahi"
299
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
300
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
301
DBUS_PATH_SERVER = "/"
302
303
@staticmethod
304
def string_array_to_txt_array(t):
305
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
306
for s in t), signature="ay")
307
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
308
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
309
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
310
SERVER_INVALID = 0 # avahi-common/defs.h
311
SERVER_REGISTERING = 1 # avahi-common/defs.h
312
SERVER_RUNNING = 2 # avahi-common/defs.h
313
SERVER_COLLISION = 3 # avahi-common/defs.h
314
SERVER_FAILURE = 4 # avahi-common/defs.h
315
212
316
213
317
class AvahiError(Exception):
214
318
def __init__(self, value, *args, **kwargs):
215
319
self.value = value
216
super(AvahiError, self).__init__(value, *args, **kwargs)
217
def __unicode__(self):
218
return unicode(repr(self.value))
320
return super(AvahiError, self).__init__(value, *args,
321
**kwargs)
322
219
323
220
324
class AvahiServiceError(AvahiError):
221
325
pass
222
326
327
223
328
class AvahiGroupError(AvahiError):
224
329
pass
225
330
226
331
227
class AvahiService(object):
332
class AvahiService:
228
333
"""An Avahi (Zeroconf) service.
229
334
230
335
Attributes:
231
336
interface: integer; avahi.IF_UNSPEC or an interface index.
232
337
Used to optionally bind to the specified interface.
233
338
name: string; Example: 'Mandos'
234
339
type: string; Example: '_mandos._tcp'.
235
See <http://www.dns-sd.org/ServiceTypes.html>
340
See <https://www.iana.org/assignments/service-names-port-numbers>
236
341
port: integer; what port to announce
237
342
TXT: list of strings; TXT record for the service
238
343
domain: string; Domain to publish on, default to .local if empty.
244
349
server: D-Bus Server
245
350
bus: dbus.SystemBus()
246
351
"""
247
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
248
servicetype = None, port = None, TXT = None,
249
domain = "", host = "", max_renames = 32768,
250
protocol = avahi.PROTO_UNSPEC, bus = None):
352
353
def __init__(self,
354
interface=avahi.IF_UNSPEC,
355
name=None,
356
servicetype=None,
357
port=None,
358
TXT=None,
359
domain="",
360
host="",
361
max_renames=32768,
362
protocol=avahi.PROTO_UNSPEC,
363
bus=None):
251
364
self.interface = interface
252
365
self.name = name
253
366
self.type = servicetype
262
375
self.server = None
263
376
self.bus = bus
264
377
self.entry_group_state_changed_match = None
265
def rename(self):
378
379
def rename(self, remove=True):
266
380
"""Derived from the Avahi example code"""
267
381
if self.rename_count >= self.max_renames:
268
382
logger.critical("No suitable Zeroconf service name found"
269
383
" after %i retries, exiting.",
270
384
self.rename_count)
271
385
raise AvahiServiceError("Too many renames")
272
self.name = unicode(self.server
273
.GetAlternativeServiceName(self.name))
386
self.name = str(
387
self.server.GetAlternativeServiceName(self.name))
388
self.rename_count += 1
274
389
logger.info("Changing Zeroconf service name to %r ...",
275
390
self.name)
276
self.remove()
391
if remove:
392
self.remove()
277
393
try:
278
394
self.add()
279
395
except dbus.exceptions.DBusException as error:
280
logger.critical("DBusException: %s", error)
281
self.cleanup()
282
os._exit(1)
283
self.rename_count += 1
396
if (error.get_dbus_name()
397
== "org.freedesktop.Avahi.CollisionError"):
398
logger.info("Local Zeroconf service name collision.")
399
return self.rename(remove=False)
400
else:
401
logger.critical("D-Bus Exception", exc_info=error)
402
self.cleanup()
403
os._exit(1)
404
284
405
def remove(self):
285
406
"""Derived from the Avahi example code"""
286
407
if self.entry_group_state_changed_match is not None:
288
409
self.entry_group_state_changed_match = None
289
410
if self.group is not None:
290
411
self.group.Reset()
412
291
413
def add(self):
292
414
"""Derived from the Avahi example code"""
293
415
self.remove()
310
432
dbus.UInt16(self.port),
311
433
avahi.string_array_to_txt_array(self.TXT))
312
434
self.group.Commit()
435
313
436
def entry_group_state_changed(self, state, error):
314
437
"""Derived from the Avahi example code"""
315
438
logger.debug("Avahi entry group state change: %i", state)
316
439
317
440
if state == avahi.ENTRY_GROUP_ESTABLISHED:
318
441
logger.debug("Zeroconf service established.")
319
442
elif state == avahi.ENTRY_GROUP_COLLISION:
321
444
self.rename()
322
445
elif state == avahi.ENTRY_GROUP_FAILURE:
323
446
logger.critical("Avahi: Error in group state changed %s",
324
unicode(error))
325
raise AvahiGroupError("State changed: %s"
326
% unicode(error))
447
str(error))
448
raise AvahiGroupError("State changed: {!s}".format(error))
449
327
450
def cleanup(self):
328
451
"""Derived from the Avahi example code"""
329
452
if self.group is not None:
334
457
pass
335
458
self.group = None
336
459
self.remove()
460
337
461
def server_state_changed(self, state, error=None):
338
462
"""Derived from the Avahi example code"""
339
463
logger.debug("Avahi server state change: %i", state)
340
bad_states = { avahi.SERVER_INVALID:
341
"Zeroconf server invalid",
342
avahi.SERVER_REGISTERING: None,
343
avahi.SERVER_COLLISION:
344
"Zeroconf server name collision",
345
avahi.SERVER_FAILURE:
346
"Zeroconf server failure" }
464
bad_states = {
465
avahi.SERVER_INVALID: "Zeroconf server invalid",
466
avahi.SERVER_REGISTERING: None,
467
avahi.SERVER_COLLISION: "Zeroconf server name collision",
468
avahi.SERVER_FAILURE: "Zeroconf server failure",
469
}
347
470
if state in bad_states:
348
471
if bad_states[state] is not None:
349
472
if error is None:
352
475
logger.error(bad_states[state] + ": %r", error)
353
476
self.cleanup()
354
477
elif state == avahi.SERVER_RUNNING:
355
self.add()
478
try:
479
self.add()
480
except dbus.exceptions.DBusException as error:
481
if (error.get_dbus_name()
482
== "org.freedesktop.Avahi.CollisionError"):
483
logger.info("Local Zeroconf service name"
484
" collision.")
485
return self.rename(remove=False)
486
else:
487
logger.critical("D-Bus Exception", exc_info=error)
488
self.cleanup()
489
os._exit(1)
356
490
else:
357
491
if error is None:
358
492
logger.debug("Unknown state: %r", state)
359
493
else:
360
494
logger.debug("Unknown state: %r: %r", state, error)
495
361
496
def activate(self):
362
497
"""Derived from the Avahi example code"""
363
498
if self.server is None:
367
502
follow_name_owner_changes=True),
368
503
avahi.DBUS_INTERFACE_SERVER)
369
504
self.server.connect_to_signal("StateChanged",
370
self.server_state_changed)
505
self.server_state_changed)
371
506
self.server_state_changed(self.server.GetState())
372
507
508
373
509
class AvahiServiceToSyslog(AvahiService):
374
def rename(self):
510
def rename(self, *args, **kwargs):
375
511
"""Add the new name to the syslog messages"""
376
ret = AvahiService.rename(self)
377
syslogger.setFormatter(logging.Formatter
378
('Mandos (%s) [%%(process)d]:'
379
' %%(levelname)s: %%(message)s'
380
% self.name))
512
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
513
syslogger.setFormatter(logging.Formatter(
514
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
515
.format(self.name)))
381
516
return ret
382
517
383
def timedelta_to_milliseconds(td):
384
"Convert a datetime.timedelta() to milliseconds"
385
return ((td.days * 24 * 60 * 60 * 1000)
386
+ (td.seconds * 1000)
387
+ (td.microseconds // 1000))
388
389
class Client(object):
518
519
# Pretend that we have a GnuTLS module
520
class gnutls:
521
"""This isn't so much a class as it is a module-like namespace."""
522
523
library = ctypes.util.find_library("gnutls")
524
if library is None:
525
library = ctypes.util.find_library("gnutls-deb0")
526
_library = ctypes.cdll.LoadLibrary(library)
527
del library
528
529
# Unless otherwise indicated, the constants and types below are
530
# all from the gnutls/gnutls.h C header file.
531
532
# Constants
533
E_SUCCESS = 0
534
E_INTERRUPTED = -52
535
E_AGAIN = -28
536
CRT_OPENPGP = 2
537
CRT_RAWPK = 3
538
CLIENT = 2
539
SHUT_RDWR = 0
540
CRD_CERTIFICATE = 1
541
E_NO_CERTIFICATE_FOUND = -49
542
X509_FMT_DER = 0
543
NO_TICKETS = 1<<10
544
ENABLE_RAWPK = 1<<18
545
CTYPE_PEERS = 3
546
KEYID_USE_SHA256 = 1 # gnutls/x509.h
547
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
548
549
# Types
550
class session_int(ctypes.Structure):
551
_fields_ = []
552
session_t = ctypes.POINTER(session_int)
553
554
class certificate_credentials_st(ctypes.Structure):
555
_fields_ = []
556
certificate_credentials_t = ctypes.POINTER(
557
certificate_credentials_st)
558
certificate_type_t = ctypes.c_int
559
560
class datum_t(ctypes.Structure):
561
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
562
('size', ctypes.c_uint)]
563
564
class openpgp_crt_int(ctypes.Structure):
565
_fields_ = []
566
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
567
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
568
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
569
credentials_type_t = ctypes.c_int
570
transport_ptr_t = ctypes.c_void_p
571
close_request_t = ctypes.c_int
572
573
# Exceptions
574
class Error(Exception):
575
def __init__(self, message=None, code=None, args=()):
576
# Default usage is by a message string, but if a return
577
# code is passed, convert it to a string with
578
# gnutls.strerror()
579
self.code = code
580
if message is None and code is not None:
581
message = gnutls.strerror(code)
582
return super(gnutls.Error, self).__init__(
583
message, *args)
584
585
class CertificateSecurityError(Error):
586
pass
587
588
# Classes
589
class Credentials:
590
def __init__(self):
591
self._c_object = gnutls.certificate_credentials_t()
592
gnutls.certificate_allocate_credentials(
593
ctypes.byref(self._c_object))
594
self.type = gnutls.CRD_CERTIFICATE
595
596
def __del__(self):
597
gnutls.certificate_free_credentials(self._c_object)
598
599
class ClientSession:
600
def __init__(self, socket, credentials=None):
601
self._c_object = gnutls.session_t()
602
gnutls_flags = gnutls.CLIENT
603
if gnutls.check_version(b"3.5.6"):
604
gnutls_flags |= gnutls.NO_TICKETS
605
if gnutls.has_rawpk:
606
gnutls_flags |= gnutls.ENABLE_RAWPK
607
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
608
del gnutls_flags
609
gnutls.set_default_priority(self._c_object)
610
gnutls.transport_set_ptr(self._c_object, socket.fileno())
611
gnutls.handshake_set_private_extensions(self._c_object,
612
True)
613
self.socket = socket
614
if credentials is None:
615
credentials = gnutls.Credentials()
616
gnutls.credentials_set(self._c_object, credentials.type,
617
ctypes.cast(credentials._c_object,
618
ctypes.c_void_p))
619
self.credentials = credentials
620
621
def __del__(self):
622
gnutls.deinit(self._c_object)
623
624
def handshake(self):
625
return gnutls.handshake(self._c_object)
626
627
def send(self, data):
628
data = bytes(data)
629
data_len = len(data)
630
while data_len > 0:
631
data_len -= gnutls.record_send(self._c_object,
632
data[-data_len:],
633
data_len)
634
635
def bye(self):
636
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
637
638
# Error handling functions
639
def _error_code(result):
640
"""A function to raise exceptions on errors, suitable
641
for the 'restype' attribute on ctypes functions"""
642
if result >= 0:
643
return result
644
if result == gnutls.E_NO_CERTIFICATE_FOUND:
645
raise gnutls.CertificateSecurityError(code=result)
646
raise gnutls.Error(code=result)
647
648
def _retry_on_error(result, func, arguments):
649
"""A function to retry on some errors, suitable
650
for the 'errcheck' attribute on ctypes functions"""
651
while result < 0:
652
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
653
return _error_code(result)
654
result = func(*arguments)
655
return result
656
657
# Unless otherwise indicated, the function declarations below are
658
# all from the gnutls/gnutls.h C header file.
659
660
# Functions
661
priority_set_direct = _library.gnutls_priority_set_direct
662
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
663
ctypes.POINTER(ctypes.c_char_p)]
664
priority_set_direct.restype = _error_code
665
666
init = _library.gnutls_init
667
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
668
init.restype = _error_code
669
670
set_default_priority = _library.gnutls_set_default_priority
671
set_default_priority.argtypes = [session_t]
672
set_default_priority.restype = _error_code
673
674
record_send = _library.gnutls_record_send
675
record_send.argtypes = [session_t, ctypes.c_void_p,
676
ctypes.c_size_t]
677
record_send.restype = ctypes.c_ssize_t
678
record_send.errcheck = _retry_on_error
679
680
certificate_allocate_credentials = (
681
_library.gnutls_certificate_allocate_credentials)
682
certificate_allocate_credentials.argtypes = [
683
ctypes.POINTER(certificate_credentials_t)]
684
certificate_allocate_credentials.restype = _error_code
685
686
certificate_free_credentials = (
687
_library.gnutls_certificate_free_credentials)
688
certificate_free_credentials.argtypes = [
689
certificate_credentials_t]
690
certificate_free_credentials.restype = None
691
692
handshake_set_private_extensions = (
693
_library.gnutls_handshake_set_private_extensions)
694
handshake_set_private_extensions.argtypes = [session_t,
695
ctypes.c_int]
696
handshake_set_private_extensions.restype = None
697
698
credentials_set = _library.gnutls_credentials_set
699
credentials_set.argtypes = [session_t, credentials_type_t,
700
ctypes.c_void_p]
701
credentials_set.restype = _error_code
702
703
strerror = _library.gnutls_strerror
704
strerror.argtypes = [ctypes.c_int]
705
strerror.restype = ctypes.c_char_p
706
707
certificate_type_get = _library.gnutls_certificate_type_get
708
certificate_type_get.argtypes = [session_t]
709
certificate_type_get.restype = _error_code
710
711
certificate_get_peers = _library.gnutls_certificate_get_peers
712
certificate_get_peers.argtypes = [session_t,
713
ctypes.POINTER(ctypes.c_uint)]
714
certificate_get_peers.restype = ctypes.POINTER(datum_t)
715
716
global_set_log_level = _library.gnutls_global_set_log_level
717
global_set_log_level.argtypes = [ctypes.c_int]
718
global_set_log_level.restype = None
719
720
global_set_log_function = _library.gnutls_global_set_log_function
721
global_set_log_function.argtypes = [log_func]
722
global_set_log_function.restype = None
723
724
deinit = _library.gnutls_deinit
725
deinit.argtypes = [session_t]
726
deinit.restype = None
727
728
handshake = _library.gnutls_handshake
729
handshake.argtypes = [session_t]
730
handshake.restype = _error_code
731
handshake.errcheck = _retry_on_error
732
733
transport_set_ptr = _library.gnutls_transport_set_ptr
734
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
735
transport_set_ptr.restype = None
736
737
bye = _library.gnutls_bye
738
bye.argtypes = [session_t, close_request_t]
739
bye.restype = _error_code
740
bye.errcheck = _retry_on_error
741
742
check_version = _library.gnutls_check_version
743
check_version.argtypes = [ctypes.c_char_p]
744
check_version.restype = ctypes.c_char_p
745
746
_need_version = b"3.3.0"
747
if check_version(_need_version) is None:
748
raise self.Error("Needs GnuTLS {} or later"
749
.format(_need_version))
750
751
_tls_rawpk_version = b"3.6.6"
752
has_rawpk = bool(check_version(_tls_rawpk_version))
753
754
if has_rawpk:
755
# Types
756
class pubkey_st(ctypes.Structure):
757
_fields = []
758
pubkey_t = ctypes.POINTER(pubkey_st)
759
760
x509_crt_fmt_t = ctypes.c_int
761
762
# All the function declarations below are from gnutls/abstract.h
763
pubkey_init = _library.gnutls_pubkey_init
764
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
765
pubkey_init.restype = _error_code
766
767
pubkey_import = _library.gnutls_pubkey_import
768
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
769
x509_crt_fmt_t]
770
pubkey_import.restype = _error_code
771
772
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
773
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
774
ctypes.POINTER(ctypes.c_ubyte),
775
ctypes.POINTER(ctypes.c_size_t)]
776
pubkey_get_key_id.restype = _error_code
777
778
pubkey_deinit = _library.gnutls_pubkey_deinit
779
pubkey_deinit.argtypes = [pubkey_t]
780
pubkey_deinit.restype = None
781
else:
782
# All the function declarations below are from gnutls/openpgp.h
783
784
openpgp_crt_init = _library.gnutls_openpgp_crt_init
785
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
786
openpgp_crt_init.restype = _error_code
787
788
openpgp_crt_import = _library.gnutls_openpgp_crt_import
789
openpgp_crt_import.argtypes = [openpgp_crt_t,
790
ctypes.POINTER(datum_t),
791
openpgp_crt_fmt_t]
792
openpgp_crt_import.restype = _error_code
793
794
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
795
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
796
ctypes.POINTER(ctypes.c_uint)]
797
openpgp_crt_verify_self.restype = _error_code
798
799
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
800
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
801
openpgp_crt_deinit.restype = None
802
803
openpgp_crt_get_fingerprint = (
804
_library.gnutls_openpgp_crt_get_fingerprint)
805
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
806
ctypes.c_void_p,
807
ctypes.POINTER(
808
ctypes.c_size_t)]
809
openpgp_crt_get_fingerprint.restype = _error_code
810
811
if check_version(b"3.6.4"):
812
certificate_type_get2 = _library.gnutls_certificate_type_get2
813
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
814
certificate_type_get2.restype = _error_code
815
816
# Remove non-public functions
817
del _error_code, _retry_on_error
818
819
820
def call_pipe(connection, # : multiprocessing.Connection
821
func, *args, **kwargs):
822
"""This function is meant to be called by multiprocessing.Process
823
824
This function runs func(*args, **kwargs), and writes the resulting
825
return value on the provided multiprocessing.Connection.
826
"""
827
connection.send(func(*args, **kwargs))
828
connection.close()
829
830
831
class Client:
390
832
"""A representation of a client host served by this server.
391
833
392
834
Attributes:
393
835
approved: bool(); 'None' if not yet approved/disapproved
394
836
approval_delay: datetime.timedelta(); Time to wait for approval
395
837
approval_duration: datetime.timedelta(); Duration of one approval
396
checker: subprocess.Popen(); a running checker process used
397
to see if the client lives.
398
'None' if no process is running.
399
checker_callback_tag: a gobject event source tag, or None
838
checker: multiprocessing.Process(); a running checker process used
839
to see if the client lives. 'None' if no process is
840
running.
841
checker_callback_tag: a GLib event source tag, or None
400
842
checker_command: string; External command which is run to check
401
843
if client lives. %() expansions are done at
402
844
runtime with vars(self) as dict, so that for
403
845
instance %(name)s can be used in the command.
404
checker_initiator_tag: a gobject event source tag, or None
846
checker_initiator_tag: a GLib event source tag, or None
405
847
created: datetime.datetime(); (UTC) object creation
406
848
client_structure: Object describing what attributes a client has
407
849
and is used for storing the client at exit
408
850
current_checker_command: string; current running checker_command
409
disable_initiator_tag: a gobject event source tag, or None
851
disable_initiator_tag: a GLib event source tag, or None
410
852
enabled: bool()
411
853
fingerprint: string (40 or 32 hexadecimal digits); used to
412
uniquely identify the client
854
uniquely identify an OpenPGP client
855
key_id: string (64 hexadecimal digits); used to uniquely identify
856
a client using raw public keys
413
857
host: string; available for use by the checker command
414
858
interval: datetime.timedelta(); How often to start a new checker
415
859
last_approval_request: datetime.datetime(); (UTC) or None
417
861
last_checker_status: integer between 0 and 255 reflecting exit
418
862
status of last checker. -1 reflects crashed
419
863
checker, -2 means no checker completed yet.
864
last_checker_signal: The signal which killed the last checker, if
865
last_checker_status is -1
420
866
last_enabled: datetime.datetime(); (UTC) or None
421
867
name: string; from the config file, used in log messages and
422
868
D-Bus identifiers
427
873
runtime_expansions: Allowed attributes for runtime expansion.
428
874
expires: datetime.datetime(); time (UTC) when a client will be
429
875
disabled, or None
876
server_settings: The server_settings dict from main()
430
877
"""
431
878
432
879
runtime_expansions = ("approval_delay", "approval_duration",
433
"created", "enabled", "fingerprint",
434
"host", "interval", "last_checked_ok",
880
"created", "enabled", "expires", "key_id",
881
"fingerprint", "host", "interval",
882
"last_approval_request", "last_checked_ok",
435
883
"last_enabled", "name", "timeout")
436
client_defaults = { "timeout": "5m",
437
"extended_timeout": "15m",
438
"interval": "2m",
439
"checker": "fping -q -- %%(host)s",
440
"host": "",
441
"approval_delay": "0s",
442
"approval_duration": "1s",
443
"approved_by_default": "True",
444
"enabled": "True",
445
}
446
447
def timeout_milliseconds(self):
448
"Return the 'timeout' attribute in milliseconds"
449
return timedelta_to_milliseconds(self.timeout)
450
451
def extended_timeout_milliseconds(self):
452
"Return the 'extended_timeout' attribute in milliseconds"
453
return timedelta_to_milliseconds(self.extended_timeout)
454
455
def interval_milliseconds(self):
456
"Return the 'interval' attribute in milliseconds"
457
return timedelta_to_milliseconds(self.interval)
458
459
def approval_delay_milliseconds(self):
460
return timedelta_to_milliseconds(self.approval_delay)
884
client_defaults = {
885
"timeout": "PT5M",
886
"extended_timeout": "PT15M",
887
"interval": "PT2M",
888
"checker": "fping -q -- %%(host)s",
889
"host": "",
890
"approval_delay": "PT0S",
891
"approval_duration": "PT1S",
892
"approved_by_default": "True",
893
"enabled": "True",
894
}
461
895
462
896
@staticmethod
463
897
def config_parser(config):
471
905
for client_name in config.sections():
472
906
section = dict(config.items(client_name))
473
907
client = settings[client_name] = {}
474
908
475
909
client["host"] = section["host"]
476
910
# Reformat values from string types to Python types
477
911
client["approved_by_default"] = config.getboolean(
478
912
client_name, "approved_by_default")
479
913
client["enabled"] = config.getboolean(client_name,
480
914
"enabled")
481
915
916
# Uppercase and remove spaces from key_id and fingerprint
917
# for later comparison purposes with return value from the
918
# key_id() and fingerprint() functions
919
client["key_id"] = (section.get("key_id", "").upper()
920
.replace(" ", ""))
482
921
client["fingerprint"] = (section["fingerprint"].upper()
483
922
.replace(" ", ""))
484
923
if "secret" in section:
485
client["secret"] = section["secret"].decode("base64")
924
client["secret"] = codecs.decode(section["secret"]
925
.encode("utf-8"),
926
"base64")
486
927
elif "secfile" in section:
487
928
with open(os.path.expanduser(os.path.expandvars
488
929
(section["secfile"])),
489
930
"rb") as secfile:
490
931
client["secret"] = secfile.read()
491
932
else:
492
raise TypeError("No secret or secfile for section %s"
493
% section)
933
raise TypeError("No secret or secfile for section {}"
934
.format(section))
494
935
client["timeout"] = string_to_delta(section["timeout"])
495
936
client["extended_timeout"] = string_to_delta(
496
937
section["extended_timeout"])
503
944
client["last_approval_request"] = None
504
945
client["last_checked_ok"] = None
505
946
client["last_checker_status"] = -2
506
947
507
948
return settings
508
509
510
def __init__(self, settings, name = None):
511
"""Note: the 'checker' key in 'config' sets the
512
'checker_command' attribute and *not* the 'checker'
513
attribute."""
949
950
def __init__(self, settings, name=None, server_settings=None):
514
951
self.name = name
952
if server_settings is None:
953
server_settings = {}
954
self.server_settings = server_settings
515
955
# adding all client settings
516
for setting, value in settings.iteritems():
956
for setting, value in settings.items():
517
957
setattr(self, setting, value)
518
958
519
959
if self.enabled:
520
960
if not hasattr(self, "last_enabled"):
521
961
self.last_enabled = datetime.datetime.utcnow()
525
965
else:
526
966
self.last_enabled = None
527
967
self.expires = None
528
968
529
969
logger.debug("Creating client %r", self.name)
530
# Uppercase and remove spaces from fingerprint for later
531
# comparison purposes with return value from the fingerprint()
532
# function
970
logger.debug(" Key ID: %s", self.key_id)
533
971
logger.debug(" Fingerprint: %s", self.fingerprint)
534
972
self.created = settings.get("created",
535
973
datetime.datetime.utcnow())
542
980
self.current_checker_command = None
543
981
self.approved = None
544
982
self.approvals_pending = 0
545
self.changedstate = (multiprocessing_manager
546
.Condition(multiprocessing_manager
547
.Lock()))
548
self.client_structure = [attr for attr in
549
self.__dict__.iterkeys()
983
self.changedstate = multiprocessing_manager.Condition(
984
multiprocessing_manager.Lock())
985
self.client_structure = [attr
986
for attr in self.__dict__.keys()
550
987
if not attr.startswith("_")]
551
988
self.client_structure.append("client_structure")
552
553
for name, t in inspect.getmembers(type(self),
554
lambda obj:
555
isinstance(obj,
556
property)):
989
990
for name, t in inspect.getmembers(
991
type(self), lambda obj: isinstance(obj, property)):
557
992
if not name.startswith("_"):
558
993
self.client_structure.append(name)
559
994
560
995
# Send notice to process children that client state has changed
561
996
def send_changedstate(self):
562
997
with self.changedstate:
563
998
self.changedstate.notify_all()
564
999
565
1000
def enable(self):
566
1001
"""Start this client's checker and timeout hooks"""
567
1002
if getattr(self, "enabled", False):
568
1003
# Already enabled
569
1004
return
570
self.send_changedstate()
571
1005
self.expires = datetime.datetime.utcnow() + self.timeout
572
1006
self.enabled = True
573
1007
self.last_enabled = datetime.datetime.utcnow()
574
1008
self.init_checker()
575
1009
self.send_changedstate()
1010
576
1011
def disable(self, quiet=True):
577
1012
"""Disable this client."""
578
1013
if not getattr(self, "enabled", False):
579
1014
return False
580
1015
if not quiet:
581
self.send_changedstate()
582
if not quiet:
583
1016
logger.info("Disabling client %s", self.name)
584
if getattr(self, "disable_initiator_tag", False):
585
gobject.source_remove(self.disable_initiator_tag)
1017
if getattr(self, "disable_initiator_tag", None) is not None:
1018
GLib.source_remove(self.disable_initiator_tag)
586
1019
self.disable_initiator_tag = None
587
1020
self.expires = None
588
if getattr(self, "checker_initiator_tag", False):
589
gobject.source_remove(self.checker_initiator_tag)
1021
if getattr(self, "checker_initiator_tag", None) is not None:
1022
GLib.source_remove(self.checker_initiator_tag)
590
1023
self.checker_initiator_tag = None
591
1024
self.stop_checker()
592
1025
self.enabled = False
593
# Do not run this again if called by a gobject.timeout_add
1026
if not quiet:
1027
self.send_changedstate()
1028
# Do not run this again if called by a GLib.timeout_add
594
1029
return False
595
1030
596
1031
def __del__(self):
597
1032
self.disable()
598
1033
599
1034
def init_checker(self):
600
1035
# Schedule a new checker to be started an 'interval' from now,
601
1036
# and every interval from then on.
602
self.checker_initiator_tag = (gobject.timeout_add
603
(self.interval_milliseconds(),
604
self.start_checker))
1037
if self.checker_initiator_tag is not None:
1038
GLib.source_remove(self.checker_initiator_tag)
1039
self.checker_initiator_tag = GLib.timeout_add(
1040
int(self.interval.total_seconds() * 1000),
1041
self.start_checker)
605
1042
# Schedule a disable() when 'timeout' has passed
606
self.disable_initiator_tag = (gobject.timeout_add
607
(self.timeout_milliseconds(),
608
self.disable))
1043
if self.disable_initiator_tag is not None:
1044
GLib.source_remove(self.disable_initiator_tag)
1045
self.disable_initiator_tag = GLib.timeout_add(
1046
int(self.timeout.total_seconds() * 1000), self.disable)
609
1047
# Also start a new checker *right now*.
610
1048
self.start_checker()
611
612
def checker_callback(self, pid, condition, command):
1049
1050
def checker_callback(self, source, condition, connection,
1051
command):
613
1052
"""The checker has completed, so take appropriate actions."""
1053
# Read return code from connection (see call_pipe)
1054
returncode = connection.recv()
1055
connection.close()
1056
if self.checker is not None:
1057
self.checker.join()
614
1058
self.checker_callback_tag = None
615
1059
self.checker = None
616
if os.WIFEXITED(condition):
617
self.last_checker_status = os.WEXITSTATUS(condition)
1060
1061
if returncode >= 0:
1062
self.last_checker_status = returncode
1063
self.last_checker_signal = None
618
1064
if self.last_checker_status == 0:
619
1065
logger.info("Checker for %(name)s succeeded",
620
1066
vars(self))
621
1067
self.checked_ok()
622
1068
else:
623
logger.info("Checker for %(name)s failed",
624
vars(self))
1069
logger.info("Checker for %(name)s failed", vars(self))
625
1070
else:
626
1071
self.last_checker_status = -1
1072
self.last_checker_signal = -returncode
627
1073
logger.warning("Checker for %(name)s crashed?",
628
1074
vars(self))
629
1075
return False
1076
630
1077
def checked_ok(self):
631
1078
"""Assert that the client has been seen, alive and well."""
632
1079
self.last_checked_ok = datetime.datetime.utcnow()
633
1080
self.last_checker_status = 0
1081
self.last_checker_signal = None
634
1082
self.bump_timeout()
635
1083
636
1084
def bump_timeout(self, timeout=None):
637
1085
"""Bump up the timeout for this client."""
638
1086
if timeout is None:
639
1087
timeout = self.timeout
640
1088
if self.disable_initiator_tag is not None:
641
gobject.source_remove(self.disable_initiator_tag)
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = None
642
1091
if getattr(self, "enabled", False):
643
self.disable_initiator_tag = (gobject.timeout_add
644
(timedelta_to_milliseconds
645
(timeout), self.disable))
1092
self.disable_initiator_tag = GLib.timeout_add(
1093
int(timeout.total_seconds() * 1000), self.disable)
646
1094
self.expires = datetime.datetime.utcnow() + timeout
647
1095
648
1096
def need_approval(self):
649
1097
self.last_approval_request = datetime.datetime.utcnow()
650
1098
651
1099
def start_checker(self):
652
1100
"""Start a new checker subprocess if one is not running.
653
1101
654
1102
If a checker already exists, leave it running and do
655
1103
nothing."""
656
1104
# The reason for not killing a running checker is that if we
657
# did that, then if a checker (for some reason) started
658
# running slowly and taking more than 'interval' time, the
659
# client would inevitably timeout, since no checker would get
660
# a chance to run to completion. If we instead leave running
1105
# did that, and if a checker (for some reason) started running
1106
# slowly and taking more than 'interval' time, then the client
1107
# would inevitably timeout, since no checker would get a
1108
# chance to run to completion. If we instead leave running
661
1109
# checkers alone, the checker would have to take more time
662
1110
# than 'timeout' for the client to be disabled, which is as it
663
1111
# should be.
664
665
# If a checker exists, make sure it is not a zombie
666
try:
667
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
668
except (AttributeError, OSError) as error:
669
if (isinstance(error, OSError)
670
and error.errno != errno.ECHILD):
671
raise error
672
else:
673
if pid:
674
logger.warning("Checker was a zombie")
675
gobject.source_remove(self.checker_callback_tag)
676
self.checker_callback(pid, status,
677
self.current_checker_command)
1112
1113
if self.checker is not None and not self.checker.is_alive():
1114
logger.warning("Checker was not alive; joining")
1115
self.checker.join()
1116
self.checker = None
678
1117
# Start a new checker if needed
679
1118
if self.checker is None:
1119
# Escape attributes for the shell
1120
escaped_attrs = {
1121
attr: re.escape(str(getattr(self, attr)))
1122
for attr in self.runtime_expansions}
680
1123
try:
681
# In case checker_command has exactly one % operator
682
command = self.checker_command % self.host
683
except TypeError:
684
# Escape attributes for the shell
685
escaped_attrs = dict(
686
(attr,
687
re.escape(unicode(str(getattr(self, attr, "")),
688
errors=
689
'replace')))
690
for attr in
691
self.runtime_expansions)
692
693
try:
694
command = self.checker_command % escaped_attrs
695
except TypeError as error:
696
logger.error('Could not format string "%s":'
697
' %s', self.checker_command, error)
698
return True # Try again later
1124
command = self.checker_command % escaped_attrs
1125
except TypeError as error:
1126
logger.error('Could not format string "%s"',
1127
self.checker_command,
1128
exc_info=error)
1129
return True # Try again later
699
1130
self.current_checker_command = command
700
try:
701
logger.info("Starting checker %r for %s",
702
command, self.name)
703
# We don't need to redirect stdout and stderr, since
704
# in normal mode, that is already done by daemon(),
705
# and in debug mode we don't want to. (Stdin is
706
# always replaced by /dev/null.)
707
self.checker = subprocess.Popen(command,
708
close_fds=True,
709
shell=True, cwd="/")
710
self.checker_callback_tag = (gobject.child_watch_add
711
(self.checker.pid,
712
self.checker_callback,
713
data=command))
714
# The checker may have completed before the gobject
715
# watch was added. Check for this.
716
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
717
if pid:
718
gobject.source_remove(self.checker_callback_tag)
719
self.checker_callback(pid, status, command)
720
except OSError as error:
721
logger.error("Failed to start subprocess: %s",
722
error)
723
# Re-run this periodically if run by gobject.timeout_add
1131
logger.info("Starting checker %r for %s", command,
1132
self.name)
1133
# We don't need to redirect stdout and stderr, since
1134
# in normal mode, that is already done by daemon(),
1135
# and in debug mode we don't want to. (Stdin is
1136
# always replaced by /dev/null.)
1137
# The exception is when not debugging but nevertheless
1138
# running in the foreground; use the previously
1139
# created wnull.
1140
popen_args = {"close_fds": True,
1141
"shell": True,
1142
"cwd": "/"}
1143
if (not self.server_settings["debug"]
1144
and self.server_settings["foreground"]):
1145
popen_args.update({"stdout": wnull,
1146
"stderr": wnull})
1147
pipe = multiprocessing.Pipe(duplex=False)
1148
self.checker = multiprocessing.Process(
1149
target=call_pipe,
1150
args=(pipe[1], subprocess.call, command),
1151
kwargs=popen_args)
1152
self.checker.start()
1153
self.checker_callback_tag = GLib.io_add_watch(
1154
GLib.IOChannel.unix_new(pipe[0].fileno()),
1155
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1156
self.checker_callback, pipe[0], command)
1157
# Re-run this periodically if run by GLib.timeout_add
724
1158
return True
725
1159
726
1160
def stop_checker(self):
727
1161
"""Force the checker process, if any, to stop."""
728
1162
if self.checker_callback_tag:
729
gobject.source_remove(self.checker_callback_tag)
1163
GLib.source_remove(self.checker_callback_tag)
730
1164
self.checker_callback_tag = None
731
1165
if getattr(self, "checker", None) is None:
732
1166
return
733
1167
logger.debug("Stopping checker for %(name)s", vars(self))
734
try:
735
os.kill(self.checker.pid, signal.SIGTERM)
736
#time.sleep(0.5)
737
#if self.checker.poll() is None:
738
# os.kill(self.checker.pid, signal.SIGKILL)
739
except OSError as error:
740
if error.errno != errno.ESRCH: # No such process
741
raise
1168
self.checker.terminate()
742
1169
self.checker = None
743
1170
744
1171
745
def dbus_service_property(dbus_interface, signature="v",
746
access="readwrite", byte_arrays=False):
1172
def dbus_service_property(dbus_interface,
1173
signature="v",
1174
access="readwrite",
1175
byte_arrays=False):
747
1176
"""Decorators for marking methods of a DBusObjectWithProperties to
748
1177
become properties on the D-Bus.
749
1178
750
1179
The decorated method will be called with no arguments by "Get"
751
1180
and with one argument by "Set".
752
1181
753
1182
The parameters, where they are supported, are the same as
754
1183
dbus.service.method, except there is only "signature", since the
755
1184
type from Get() and the type sent to Set() is the same.
758
1187
# "Set" method, so we fail early here:
759
1188
if byte_arrays and signature != "ay":
760
1189
raise ValueError("Byte arrays not supported for non-'ay'"
761
" signature %r" % signature)
1190
" signature {!r}".format(signature))
1191
762
1192
def decorator(func):
763
1193
func._dbus_is_property = True
764
1194
func._dbus_interface = dbus_interface
767
1197
func._dbus_name = func.__name__
768
1198
if func._dbus_name.endswith("_dbus_property"):
769
1199
func._dbus_name = func._dbus_name[:-14]
770
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1200
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
771
1201
return func
1202
772
1203
return decorator
773
1204
774
1205
775
1206
def dbus_interface_annotations(dbus_interface):
776
"""Decorator for marking functions returning interface annotations.
777
1207
"""Decorator for marking functions returning interface annotations
1208
778
1209
Usage:
779
1210
780
1211
@dbus_interface_annotations("org.example.Interface")
781
1212
def _foo(self): # Function name does not matter
782
1213
return {"org.freedesktop.DBus.Deprecated": "true",
783
1214
"org.freedesktop.DBus.Property.EmitsChangedSignal":
784
1215
"false"}
785
1216
"""
1217
786
1218
def decorator(func):
787
1219
func._dbus_is_interface = True
788
1220
func._dbus_interface = dbus_interface
789
1221
func._dbus_name = dbus_interface
790
1222
return func
1223
791
1224
return decorator
792
1225
793
1226
794
1227
def dbus_annotations(annotations):
795
1228
"""Decorator to annotate D-Bus methods, signals or properties
796
1229
Usage:
797
1230
1231
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1232
"org.freedesktop.DBus.Property."
1233
"EmitsChangedSignal": "false"})
798
1234
@dbus_service_property("org.example.Interface", signature="b",
799
1235
access="r")
800
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
801
"org.freedesktop.DBus.Property."
802
"EmitsChangedSignal": "false"})
803
1236
def Property_dbus_property(self):
804
1237
return dbus.Boolean(False)
1238
1239
See also the DBusObjectWithAnnotations class.
805
1240
"""
1241
806
1242
def decorator(func):
807
1243
func._dbus_annotations = annotations
808
1244
return func
1245
809
1246
return decorator
810
1247
811
1248
812
1249
class DBusPropertyException(dbus.exceptions.DBusException):
813
1250
"""A base class for D-Bus property-related exceptions
814
1251
"""
815
def __unicode__(self):
816
return unicode(str(self))
1252
pass
817
1253
818
1254
819
1255
class DBusPropertyAccessException(DBusPropertyException):
828
1264
pass
829
1265
830
1266
831
class DBusObjectWithProperties(dbus.service.Object):
832
"""A D-Bus object with properties.
833
834
Classes inheriting from this can use the dbus_service_property
835
decorator to expose methods as D-Bus properties. It exposes the
836
standard Get(), Set(), and GetAll() methods on the D-Bus.
1267
class DBusObjectWithAnnotations(dbus.service.Object):
1268
"""A D-Bus object with annotations.
1269
1270
Classes inheriting from this can use the dbus_annotations
1271
decorator to add annotations to methods or signals.
837
1272
"""
838
1273
839
1274
@staticmethod
840
1275
def _is_dbus_thing(thing):
841
1276
"""Returns a function testing if an attribute is a D-Bus thing
842
1277
843
1278
If called like _is_dbus_thing("method") it returns a function
844
1279
suitable for use as predicate to inspect.getmembers().
845
1280
"""
846
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1281
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
847
1282
False)
848
1283
849
1284
def _get_all_dbus_things(self, thing):
850
1285
"""Returns a generator of (name, attribute) pairs
851
1286
"""
852
return ((getattr(athing.__get__(self), "_dbus_name",
853
name),
1287
return ((getattr(athing.__get__(self), "_dbus_name", name),
854
1288
athing.__get__(self))
855
1289
for cls in self.__class__.__mro__
856
1290
for name, athing in
857
inspect.getmembers(cls,
858
self._is_dbus_thing(thing)))
859
1291
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1292
1293
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1294
out_signature="s",
1295
path_keyword='object_path',
1296
connection_keyword='connection')
1297
def Introspect(self, object_path, connection):
1298
"""Overloading of standard D-Bus method.
1299
1300
Inserts annotation tags on methods and signals.
1301
"""
1302
xmlstring = dbus.service.Object.Introspect(self, object_path,
1303
connection)
1304
try:
1305
document = xml.dom.minidom.parseString(xmlstring)
1306
1307
for if_tag in document.getElementsByTagName("interface"):
1308
# Add annotation tags
1309
for typ in ("method", "signal"):
1310
for tag in if_tag.getElementsByTagName(typ):
1311
annots = dict()
1312
for name, prop in (self.
1313
_get_all_dbus_things(typ)):
1314
if (name == tag.getAttribute("name")
1315
and prop._dbus_interface
1316
== if_tag.getAttribute("name")):
1317
annots.update(getattr(
1318
prop, "_dbus_annotations", {}))
1319
for name, value in annots.items():
1320
ann_tag = document.createElement(
1321
"annotation")
1322
ann_tag.setAttribute("name", name)
1323
ann_tag.setAttribute("value", value)
1324
tag.appendChild(ann_tag)
1325
# Add interface annotation tags
1326
for annotation, value in dict(
1327
itertools.chain.from_iterable(
1328
annotations().items()
1329
for name, annotations
1330
in self._get_all_dbus_things("interface")
1331
if name == if_tag.getAttribute("name")
1332
)).items():
1333
ann_tag = document.createElement("annotation")
1334
ann_tag.setAttribute("name", annotation)
1335
ann_tag.setAttribute("value", value)
1336
if_tag.appendChild(ann_tag)
1337
# Fix argument name for the Introspect method itself
1338
if (if_tag.getAttribute("name")
1339
== dbus.INTROSPECTABLE_IFACE):
1340
for cn in if_tag.getElementsByTagName("method"):
1341
if cn.getAttribute("name") == "Introspect":
1342
for arg in cn.getElementsByTagName("arg"):
1343
if (arg.getAttribute("direction")
1344
== "out"):
1345
arg.setAttribute("name",
1346
"xml_data")
1347
xmlstring = document.toxml("utf-8")
1348
document.unlink()
1349
except (AttributeError, xml.dom.DOMException,
1350
xml.parsers.expat.ExpatError) as error:
1351
logger.error("Failed to override Introspection method",
1352
exc_info=error)
1353
return xmlstring
1354
1355
1356
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1357
"""A D-Bus object with properties.
1358
1359
Classes inheriting from this can use the dbus_service_property
1360
decorator to expose methods as D-Bus properties. It exposes the
1361
standard Get(), Set(), and GetAll() methods on the D-Bus.
1362
"""
1363
860
1364
def _get_dbus_property(self, interface_name, property_name):
861
1365
"""Returns a bound method if one exists which is a D-Bus
862
1366
property with the specified name and interface.
863
1367
"""
864
for cls in self.__class__.__mro__:
865
for name, value in (inspect.getmembers
866
(cls,
867
self._is_dbus_thing("property"))):
1368
for cls in self.__class__.__mro__:
1369
for name, value in inspect.getmembers(
1370
cls, self._is_dbus_thing("property")):
868
1371
if (value._dbus_name == property_name
869
1372
and value._dbus_interface == interface_name):
870
1373
return value.__get__(self)
871
1374
872
1375
# No such property
873
raise DBusPropertyNotFound(self.dbus_object_path + ":"
874
+ interface_name + "."
875
+ property_name)
876
877
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1376
raise DBusPropertyNotFound("{}:{}.{}".format(
1377
self.dbus_object_path, interface_name, property_name))
1378
1379
@classmethod
1380
def _get_all_interface_names(cls):
1381
"""Get a sequence of all interfaces supported by an object"""
1382
return (name for name in set(getattr(getattr(x, attr),
1383
"_dbus_interface", None)
1384
for x in (inspect.getmro(cls))
1385
for attr in dir(x))
1386
if name is not None)
1387
1388
@dbus.service.method(dbus.PROPERTIES_IFACE,
1389
in_signature="ss",
878
1390
out_signature="v")
879
1391
def Get(self, interface_name, property_name):
880
1392
"""Standard D-Bus property Get() method, see D-Bus standard.
886
1398
if not hasattr(value, "variant_level"):
887
1399
return value
888
1400
return type(value)(value, variant_level=value.variant_level+1)
889
1401
890
1402
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
891
1403
def Set(self, interface_name, property_name, value):
892
1404
"""Standard D-Bus property Set() method, see D-Bus standard.
898
1410
# The byte_arrays option is not supported yet on
899
1411
# signatures other than "ay".
900
1412
if prop._dbus_signature != "ay":
901
raise ValueError
1413
raise ValueError("Byte arrays not supported for non-"
1414
"'ay' signature {!r}"
1415
.format(prop._dbus_signature))
902
1416
value = dbus.ByteArray(b''.join(chr(byte)
903
1417
for byte in value))
904
1418
prop(value)
905
906
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1419
1420
@dbus.service.method(dbus.PROPERTIES_IFACE,
1421
in_signature="s",
907
1422
out_signature="a{sv}")
908
1423
def GetAll(self, interface_name):
909
1424
"""Standard D-Bus property GetAll() method, see D-Bus
910
1425
standard.
911
1426
912
1427
Note: Will not include properties with access="write".
913
1428
"""
914
1429
properties = {}
924
1439
if not hasattr(value, "variant_level"):
925
1440
properties[name] = value
926
1441
continue
927
properties[name] = type(value)(value, variant_level=
928
value.variant_level+1)
1442
properties[name] = type(value)(
1443
value, variant_level=value.variant_level + 1)
929
1444
return dbus.Dictionary(properties, signature="sv")
930
1445
1446
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1447
def PropertiesChanged(self, interface_name, changed_properties,
1448
invalidated_properties):
1449
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1450
standard.
1451
"""
1452
pass
1453
931
1454
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
932
1455
out_signature="s",
933
1456
path_keyword='object_path',
934
1457
connection_keyword='connection')
935
1458
def Introspect(self, object_path, connection):
936
1459
"""Overloading of standard D-Bus method.
937
1460
938
1461
Inserts property tags and interface annotation tags.
939
1462
"""
940
xmlstring = dbus.service.Object.Introspect(self, object_path,
941
connection)
1463
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1464
object_path,
1465
connection)
942
1466
try:
943
1467
document = xml.dom.minidom.parseString(xmlstring)
1468
944
1469
def make_tag(document, name, prop):
945
1470
e = document.createElement("property")
946
1471
e.setAttribute("name", name)
947
1472
e.setAttribute("type", prop._dbus_signature)
948
1473
e.setAttribute("access", prop._dbus_access)
949
1474
return e
1475
950
1476
for if_tag in document.getElementsByTagName("interface"):
951
1477
# Add property tags
952
1478
for tag in (make_tag(document, name, prop)
955
1481
if prop._dbus_interface
956
1482
== if_tag.getAttribute("name")):
957
1483
if_tag.appendChild(tag)
958
# Add annotation tags
959
for typ in ("method", "signal", "property"):
960
for tag in if_tag.getElementsByTagName(typ):
961
annots = dict()
962
for name, prop in (self.
963
_get_all_dbus_things(typ)):
964
if (name == tag.getAttribute("name")
965
and prop._dbus_interface
966
== if_tag.getAttribute("name")):
967
annots.update(getattr
968
(prop,
969
"_dbus_annotations",
970
{}))
971
for name, value in annots.iteritems():
972
ann_tag = document.createElement(
973
"annotation")
974
ann_tag.setAttribute("name", name)
975
ann_tag.setAttribute("value", value)
976
tag.appendChild(ann_tag)
977
# Add interface annotation tags
978
for annotation, value in dict(
979
itertools.chain(
980
*(annotations().iteritems()
981
for name, annotations in
982
self._get_all_dbus_things("interface")
983
if name == if_tag.getAttribute("name")
984
))).iteritems():
985
ann_tag = document.createElement("annotation")
986
ann_tag.setAttribute("name", annotation)
987
ann_tag.setAttribute("value", value)
988
if_tag.appendChild(ann_tag)
1484
# Add annotation tags for properties
1485
for tag in if_tag.getElementsByTagName("property"):
1486
annots = dict()
1487
for name, prop in self._get_all_dbus_things(
1488
"property"):
1489
if (name == tag.getAttribute("name")
1490
and prop._dbus_interface
1491
== if_tag.getAttribute("name")):
1492
annots.update(getattr(
1493
prop, "_dbus_annotations", {}))
1494
for name, value in annots.items():
1495
ann_tag = document.createElement(
1496
"annotation")
1497
ann_tag.setAttribute("name", name)
1498
ann_tag.setAttribute("value", value)
1499
tag.appendChild(ann_tag)
989
1500
# Add the names to the return values for the
990
1501
# "org.freedesktop.DBus.Properties" methods
991
1502
if (if_tag.getAttribute("name")
1006
1517
except (AttributeError, xml.dom.DOMException,
1007
1518
xml.parsers.expat.ExpatError) as error:
1008
1519
logger.error("Failed to override Introspection method",
1009
error)
1010
return xmlstring
1011
1012
1013
def datetime_to_dbus (dt, variant_level=0):
1520
exc_info=error)
1521
return xmlstring
1522
1523
1524
try:
1525
dbus.OBJECT_MANAGER_IFACE
1526
except AttributeError:
1527
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1528
1529
1530
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1531
"""A D-Bus object with an ObjectManager.
1532
1533
Classes inheriting from this exposes the standard
1534
GetManagedObjects call and the InterfacesAdded and
1535
InterfacesRemoved signals on the standard
1536
"org.freedesktop.DBus.ObjectManager" interface.
1537
1538
Note: No signals are sent automatically; they must be sent
1539
manually.
1540
"""
1541
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1542
out_signature="a{oa{sa{sv}}}")
1543
def GetManagedObjects(self):
1544
"""This function must be overridden"""
1545
raise NotImplementedError()
1546
1547
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1548
signature="oa{sa{sv}}")
1549
def InterfacesAdded(self, object_path, interfaces_and_properties):
1550
pass
1551
1552
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1553
def InterfacesRemoved(self, object_path, interfaces):
1554
pass
1555
1556
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1557
out_signature="s",
1558
path_keyword='object_path',
1559
connection_keyword='connection')
1560
def Introspect(self, object_path, connection):
1561
"""Overloading of standard D-Bus method.
1562
1563
Override return argument name of GetManagedObjects to be
1564
"objpath_interfaces_and_properties"
1565
"""
1566
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1567
object_path,
1568
connection)
1569
try:
1570
document = xml.dom.minidom.parseString(xmlstring)
1571
1572
for if_tag in document.getElementsByTagName("interface"):
1573
# Fix argument name for the GetManagedObjects method
1574
if (if_tag.getAttribute("name")
1575
== dbus.OBJECT_MANAGER_IFACE):
1576
for cn in if_tag.getElementsByTagName("method"):
1577
if (cn.getAttribute("name")
1578
== "GetManagedObjects"):
1579
for arg in cn.getElementsByTagName("arg"):
1580
if (arg.getAttribute("direction")
1581
== "out"):
1582
arg.setAttribute(
1583
"name",
1584
"objpath_interfaces"
1585
"_and_properties")
1586
xmlstring = document.toxml("utf-8")
1587
document.unlink()
1588
except (AttributeError, xml.dom.DOMException,
1589
xml.parsers.expat.ExpatError) as error:
1590
logger.error("Failed to override Introspection method",
1591
exc_info=error)
1592
return xmlstring
1593
1594
1595
def datetime_to_dbus(dt, variant_level=0):
1014
1596
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1015
1597
if dt is None:
1016
return dbus.String("", variant_level = variant_level)
1017
return dbus.String(dt.isoformat(),
1018
variant_level=variant_level)
1019
1020
1021
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
1022
.__metaclass__):
1023
"""Applied to an empty subclass of a D-Bus object, this metaclass
1024
will add additional D-Bus attributes matching a certain pattern.
1598
return dbus.String("", variant_level=variant_level)
1599
return dbus.String(dt.isoformat(), variant_level=variant_level)
1600
1601
1602
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1603
"""A class decorator; applied to a subclass of
1604
dbus.service.Object, it will add alternate D-Bus attributes with
1605
interface names according to the "alt_interface_names" mapping.
1606
Usage:
1607
1608
@alternate_dbus_interfaces({"org.example.Interface":
1609
"net.example.AlternateInterface"})
1610
class SampleDBusObject(dbus.service.Object):
1611
@dbus.service.method("org.example.Interface")
1612
def SampleDBusMethod():
1613
pass
1614
1615
The above "SampleDBusMethod" on "SampleDBusObject" will be
1616
reachable via two interfaces: "org.example.Interface" and
1617
"net.example.AlternateInterface", the latter of which will have
1618
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1619
"true", unless "deprecate" is passed with a False value.
1620
1621
This works for methods and signals, and also for D-Bus properties
1622
(from DBusObjectWithProperties) and interfaces (from the
1623
dbus_interface_annotations decorator).
1025
1624
"""
1026
def __new__(mcs, name, bases, attr):
1027
# Go through all the base classes which could have D-Bus
1028
# methods, signals, or properties in them
1029
old_interface_names = []
1030
for base in (b for b in bases
1031
if issubclass(b, dbus.service.Object)):
1032
# Go though all attributes of the base class
1033
for attrname, attribute in inspect.getmembers(base):
1625
1626
def wrapper(cls):
1627
for orig_interface_name, alt_interface_name in (
1628
alt_interface_names.items()):
1629
attr = {}
1630
interface_names = set()
1631
# Go though all attributes of the class
1632
for attrname, attribute in inspect.getmembers(cls):
1034
1633
# Ignore non-D-Bus attributes, and D-Bus attributes
1035
1634
# with the wrong interface name
1036
1635
if (not hasattr(attribute, "_dbus_interface")
1037
or not attribute._dbus_interface
1038
.startswith("se.recompile.Mandos")):
1636
or not attribute._dbus_interface.startswith(
1637
orig_interface_name)):
1039
1638
continue
1040
1639
# Create an alternate D-Bus interface name based on
1041
1640
# the current name
1042
alt_interface = (attribute._dbus_interface
1043
.replace("se.recompile.Mandos",
1044
"se.bsnet.fukt.Mandos"))
1045
if alt_interface != attribute._dbus_interface:
1046
old_interface_names.append(alt_interface)
1641
alt_interface = attribute._dbus_interface.replace(
1642
orig_interface_name, alt_interface_name)
1643
interface_names.add(alt_interface)
1047
1644
# Is this a D-Bus signal?
1048
1645
if getattr(attribute, "_dbus_is_signal", False):
1049
# Extract the original non-method function by
1050
# black magic
1051
nonmethod_func = (dict(
1646
# Extract the original non-method undecorated
1647
# function by black magic
1648
if sys.version_info.major == 2:
1649
nonmethod_func = (dict(
1052
1650
zip(attribute.func_code.co_freevars,
1053
attribute.__closure__))["func"]
1054
.cell_contents)
1651
attribute.__closure__))
1652
["func"].cell_contents)
1653
else:
1654
nonmethod_func = (dict(
1655
zip(attribute.__code__.co_freevars,
1656
attribute.__closure__))
1657
["func"].cell_contents)
1055
1658
# Create a new, but exactly alike, function
1056
1659
# object, and decorate it to be a new D-Bus signal
1057
1660
# with the alternate D-Bus interface name
1058
new_function = (dbus.service.signal
1059
(alt_interface,
1060
attribute._dbus_signature)
1061
(types.FunctionType(
1062
nonmethod_func.func_code,
1063
nonmethod_func.func_globals,
1064
nonmethod_func.func_name,
1065
nonmethod_func.func_defaults,
1066
nonmethod_func.func_closure)))
1661
new_function = copy_function(nonmethod_func)
1662
new_function = (dbus.service.signal(
1663
alt_interface,
1664
attribute._dbus_signature)(new_function))
1067
1665
# Copy annotations, if any
1068
1666
try:
1069
new_function._dbus_annotations = (
1070
dict(attribute._dbus_annotations))
1667
new_function._dbus_annotations = dict(
1668
attribute._dbus_annotations)
1071
1669
except AttributeError:
1072
1670
pass
1671
1073
1672
# Define a creator of a function to call both the
1074
# old and new functions, so both the old and new
1075
# signals gets sent when the function is called
1673
# original and alternate functions, so both the
1674
# original and alternate signals gets sent when
1675
# the function is called
1076
1676
def fixscope(func1, func2):
1077
1677
"""This function is a scope container to pass
1078
1678
func1 and func2 to the "call_both" function
1079
1679
outside of its arguments"""
1680
1681
@functools.wraps(func2)
1080
1682
def call_both(*args, **kwargs):
1081
1683
"""This function will emit two D-Bus
1082
1684
signals by calling func1 and func2"""
1083
1685
func1(*args, **kwargs)
1084
1686
func2(*args, **kwargs)
1687
# Make wrapper function look like a D-Bus
1688
# signal
1689
for name, attr in inspect.getmembers(func2):
1690
if name.startswith("_dbus_"):
1691
setattr(call_both, name, attr)
1692
1085
1693
return call_both
1086
1694
# Create the "call_both" function and add it to
1087
1695
# the class
1088
attr[attrname] = fixscope(attribute,
1089
new_function)
1696
attr[attrname] = fixscope(attribute, new_function)
1090
1697
# Is this a D-Bus method?
1091
1698
elif getattr(attribute, "_dbus_is_method", False):
1092
1699
# Create a new, but exactly alike, function
1093
1700
# object. Decorate it to be a new D-Bus method
1094
1701
# with the alternate D-Bus interface name. Add it
1095
1702
# to the class.
1096
attr[attrname] = (dbus.service.method
1097
(alt_interface,
1098
attribute._dbus_in_signature,
1099
attribute._dbus_out_signature)
1100
(types.FunctionType
1101
(attribute.func_code,
1102
attribute.func_globals,
1103
attribute.func_name,
1104
attribute.func_defaults,
1105
attribute.func_closure)))
1703
attr[attrname] = (
1704
dbus.service.method(
1705
alt_interface,
1706
attribute._dbus_in_signature,
1707
attribute._dbus_out_signature)
1708
(copy_function(attribute)))
1106
1709
# Copy annotations, if any
1107
1710
try:
1108
attr[attrname]._dbus_annotations = (
1109
dict(attribute._dbus_annotations))
1711
attr[attrname]._dbus_annotations = dict(
1712
attribute._dbus_annotations)
1110
1713
except AttributeError:
1111
1714
pass
1112
1715
# Is this a D-Bus property?
1115
1718
# object, and decorate it to be a new D-Bus
1116
1719
# property with the alternate D-Bus interface
1117
1720
# name. Add it to the class.
1118
attr[attrname] = (dbus_service_property
1119
(alt_interface,
1120
attribute._dbus_signature,
1121
attribute._dbus_access,
1122
attribute
1123
._dbus_get_args_options
1124
["byte_arrays"])
1125
(types.FunctionType
1126
(attribute.func_code,
1127
attribute.func_globals,
1128
attribute.func_name,
1129
attribute.func_defaults,
1130
attribute.func_closure)))
1721
attr[attrname] = (dbus_service_property(
1722
alt_interface, attribute._dbus_signature,
1723
attribute._dbus_access,
1724
attribute._dbus_get_args_options
1725
["byte_arrays"])
1726
(copy_function(attribute)))
1131
1727
# Copy annotations, if any
1132
1728
try:
1133
attr[attrname]._dbus_annotations = (
1134
dict(attribute._dbus_annotations))
1729
attr[attrname]._dbus_annotations = dict(
1730
attribute._dbus_annotations)
1135
1731
except AttributeError:
1136
1732
pass
1137
1733
# Is this a D-Bus interface?
1140
1736
# object. Decorate it to be a new D-Bus interface
1141
1737
# with the alternate D-Bus interface name. Add it
1142
1738
# to the class.
1143
attr[attrname] = (dbus_interface_annotations
1144
(alt_interface)
1145
(types.FunctionType
1146
(attribute.func_code,
1147
attribute.func_globals,
1148
attribute.func_name,
1149
attribute.func_defaults,
1150
attribute.func_closure)))
1151
# Deprecate all old interfaces
1152
basename="_AlternateDBusNamesMetaclass_interface_annotation{0}"
1153
for old_interface_name in old_interface_names:
1154
@dbus_interface_annotations(old_interface_name)
1155
def func(self):
1156
return { "org.freedesktop.DBus.Deprecated": "true" }
1157
# Find an unused name
1158
for aname in (basename.format(i) for i in
1159
itertools.count()):
1160
if aname not in attr:
1161
attr[aname] = func
1162
break
1163
return type.__new__(mcs, name, bases, attr)
1164
1165
1739
attr[attrname] = (
1740
dbus_interface_annotations(alt_interface)
1741
(copy_function(attribute)))
1742
if deprecate:
1743
# Deprecate all alternate interfaces
1744
iname = "_AlternateDBusNames_interface_annotation{}"
1745
for interface_name in interface_names:
1746
1747
@dbus_interface_annotations(interface_name)
1748
def func(self):
1749
return {"org.freedesktop.DBus.Deprecated":
1750
"true"}
1751
# Find an unused name
1752
for aname in (iname.format(i)
1753
for i in itertools.count()):
1754
if aname not in attr:
1755
attr[aname] = func
1756
break
1757
if interface_names:
1758
# Replace the class with a new subclass of it with
1759
# methods, signals, etc. as created above.
1760
if sys.version_info.major == 2:
1761
cls = type(b"{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
else:
1764
cls = type("{}Alternate".format(cls.__name__),
1765
(cls, ), attr)
1766
return cls
1767
1768
return wrapper
1769
1770
1771
@alternate_dbus_interfaces({"se.recompile.Mandos":
1772
"se.bsnet.fukt.Mandos"})
1166
1773
class ClientDBus(Client, DBusObjectWithProperties):
1167
1774
"""A Client class using D-Bus
1168
1775
1169
1776
Attributes:
1170
1777
dbus_object_path: dbus.ObjectPath
1171
1778
bus: dbus.SystemBus()
1172
1779
"""
1173
1780
1174
1781
runtime_expansions = (Client.runtime_expansions
1175
+ ("dbus_object_path",))
1176
1782
+ ("dbus_object_path", ))
1783
1784
_interface = "se.recompile.Mandos.Client"
1785
1177
1786
# dbus.service.Object doesn't use super(), so we can't either.
1178
1179
def __init__(self, bus = None, *args, **kwargs):
1787
1788
def __init__(self, bus=None, *args, **kwargs):
1180
1789
self.bus = bus
1181
1790
Client.__init__(self, *args, **kwargs)
1182
1791
# Only now, when this client is initialized, can it show up on
1183
1792
# the D-Bus
1184
client_object_name = unicode(self.name).translate(
1793
client_object_name = str(self.name).translate(
1185
1794
{ord("."): ord("_"),
1186
1795
ord("-"): ord("_")})
1187
self.dbus_object_path = (dbus.ObjectPath
1188
("/clients/" + client_object_name))
1796
self.dbus_object_path = dbus.ObjectPath(
1797
"/clients/" + client_object_name)
1189
1798
DBusObjectWithProperties.__init__(self, self.bus,
1190
1799
self.dbus_object_path)
1191
1192
def notifychangeproperty(transform_func,
1193
dbus_name, type_func=lambda x: x,
1194
variant_level=1):
1800
1801
def notifychangeproperty(transform_func, dbus_name,
1802
type_func=lambda x: x,
1803
variant_level=1,
1804
invalidate_only=False,
1805
_interface=_interface):
1195
1806
""" Modify a variable so that it's a property which announces
1196
1807
its changes to DBus.
1197
1808
1198
1809
transform_fun: Function that takes a value and a variant_level
1199
1810
and transforms it to a D-Bus type.
1200
1811
dbus_name: D-Bus name of the variable
1202
1813
to the D-Bus. Default: no transform
1203
1814
variant_level: D-Bus variant level. Default: 1
1204
1815
"""
1205
attrname = "_{0}".format(dbus_name)
1816
attrname = "_{}".format(dbus_name)
1817
1206
1818
def setter(self, value):
1207
1819
if hasattr(self, "dbus_object_path"):
1208
1820
if (not hasattr(self, attrname) or
1209
1821
type_func(getattr(self, attrname, None))
1210
1822
!= type_func(value)):
1211
dbus_value = transform_func(type_func(value),
1212
variant_level
1213
=variant_level)
1214
self.PropertyChanged(dbus.String(dbus_name),
1215
dbus_value)
1823
if invalidate_only:
1824
self.PropertiesChanged(
1825
_interface, dbus.Dictionary(),
1826
dbus.Array((dbus_name, )))
1827
else:
1828
dbus_value = transform_func(
1829
type_func(value),
1830
variant_level=variant_level)
1831
self.PropertyChanged(dbus.String(dbus_name),
1832
dbus_value)
1833
self.PropertiesChanged(
1834
_interface,
1835
dbus.Dictionary({dbus.String(dbus_name):
1836
dbus_value}),
1837
dbus.Array())
1216
1838
setattr(self, attrname, value)
1217
1839
1218
1840
return property(lambda self: getattr(self, attrname), setter)
1219
1220
1841
1221
1842
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1222
1843
approvals_pending = notifychangeproperty(dbus.Boolean,
1223
1844
"ApprovalPending",
1224
type_func = bool)
1845
type_func=bool)
1225
1846
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1226
1847
last_enabled = notifychangeproperty(datetime_to_dbus,
1227
1848
"LastEnabled")
1228
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1229
type_func = lambda checker:
1230
checker is not None)
1849
checker = notifychangeproperty(
1850
dbus.Boolean, "CheckerRunning",
1851
type_func=lambda checker: checker is not None)
1231
1852
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1232
1853
"LastCheckedOK")
1233
1854
last_checker_status = notifychangeproperty(dbus.Int16,
1236
1857
datetime_to_dbus, "LastApprovalRequest")
1237
1858
approved_by_default = notifychangeproperty(dbus.Boolean,
1238
1859
"ApprovedByDefault")
1239
approval_delay = notifychangeproperty(dbus.UInt64,
1240
"ApprovalDelay",
1241
type_func =
1242
timedelta_to_milliseconds)
1860
approval_delay = notifychangeproperty(
1861
dbus.UInt64, "ApprovalDelay",
1862
type_func=lambda td: td.total_seconds() * 1000)
1243
1863
approval_duration = notifychangeproperty(
1244
1864
dbus.UInt64, "ApprovalDuration",
1245
type_func = timedelta_to_milliseconds)
1865
type_func=lambda td: td.total_seconds() * 1000)
1246
1866
host = notifychangeproperty(dbus.String, "Host")
1247
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1248
type_func =
1249
timedelta_to_milliseconds)
1867
timeout = notifychangeproperty(
1868
dbus.UInt64, "Timeout",
1869
type_func=lambda td: td.total_seconds() * 1000)
1250
1870
extended_timeout = notifychangeproperty(
1251
1871
dbus.UInt64, "ExtendedTimeout",
1252
type_func = timedelta_to_milliseconds)
1253
interval = notifychangeproperty(dbus.UInt64,
1254
"Interval",
1255
type_func =
1256
timedelta_to_milliseconds)
1872
type_func=lambda td: td.total_seconds() * 1000)
1873
interval = notifychangeproperty(
1874
dbus.UInt64, "Interval",
1875
type_func=lambda td: td.total_seconds() * 1000)
1257
1876
checker_command = notifychangeproperty(dbus.String, "Checker")
1258
1877
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1878
invalidate_only=True)
1879
1259
1880
del notifychangeproperty
1260
1881
1261
1882
def __del__(self, *args, **kwargs):
1262
1883
try:
1263
1884
self.remove_from_connection()
1266
1887
if hasattr(DBusObjectWithProperties, "__del__"):
1267
1888
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1268
1889
Client.__del__(self, *args, **kwargs)
1269
1270
def checker_callback(self, pid, condition, command,
1271
*args, **kwargs):
1272
self.checker_callback_tag = None
1273
self.checker = None
1274
if os.WIFEXITED(condition):
1275
exitstatus = os.WEXITSTATUS(condition)
1890
1891
def checker_callback(self, source, condition,
1892
connection, command, *args, **kwargs):
1893
ret = Client.checker_callback(self, source, condition,
1894
connection, command, *args,
1895
**kwargs)
1896
exitstatus = self.last_checker_status
1897
if exitstatus >= 0:
1276
1898
# Emit D-Bus signal
1277
1899
self.CheckerCompleted(dbus.Int16(exitstatus),
1278
dbus.Int64(condition),
1900
# This is specific to GNU libC
1901
dbus.Int64(exitstatus << 8),
1279
1902
dbus.String(command))
1280
1903
else:
1281
1904
# Emit D-Bus signal
1282
1905
self.CheckerCompleted(dbus.Int16(-1),
1283
dbus.Int64(condition),
1906
dbus.Int64(
1907
# This is specific to GNU libC
1908
(exitstatus << 8)
1909
| self.last_checker_signal),
1284
1910
dbus.String(command))
1285
1286
return Client.checker_callback(self, pid, condition, command,
1287
*args, **kwargs)
1288
1911
return ret
1912
1289
1913
def start_checker(self, *args, **kwargs):
1290
old_checker = self.checker
1291
if self.checker is not None:
1292
old_checker_pid = self.checker.pid
1293
else:
1294
old_checker_pid = None
1914
old_checker_pid = getattr(self.checker, "pid", None)
1295
1915
r = Client.start_checker(self, *args, **kwargs)
1296
1916
# Only if new checker process was started
1297
1917
if (self.checker is not None
1299
1919
# Emit D-Bus signal
1300
1920
self.CheckerStarted(self.current_checker_command)
1301
1921
return r
1302
1922
1303
1923
def _reset_approved(self):
1304
1924
self.approved = None
1305
1925
return False
1306
1926
1307
1927
def approve(self, value=True):
1308
self.send_changedstate()
1309
1928
self.approved = value
1310
gobject.timeout_add(timedelta_to_milliseconds
1311
(self.approval_duration),
1312
self._reset_approved)
1313
1314
1315
## D-Bus methods, signals & properties
1316
_interface = "se.recompile.Mandos.Client"
1317
1318
## Interfaces
1319
1320
@dbus_interface_annotations(_interface)
1321
def _foo(self):
1322
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1323
"false"}
1324
1325
## Signals
1326
1929
GLib.timeout_add(int(self.approval_duration.total_seconds()
1930
* 1000), self._reset_approved)
1931
self.send_changedstate()
1932
1933
# D-Bus methods, signals & properties
1934
1935
# Interfaces
1936
1937
# Signals
1938
1327
1939
# CheckerCompleted - signal
1328
1940
@dbus.service.signal(_interface, signature="nxs")
1329
1941
def CheckerCompleted(self, exitcode, waitstatus, command):
1330
1942
"D-Bus signal"
1331
1943
pass
1332
1944
1333
1945
# CheckerStarted - signal
1334
1946
@dbus.service.signal(_interface, signature="s")
1335
1947
def CheckerStarted(self, command):
1336
1948
"D-Bus signal"
1337
1949
pass
1338
1950
1339
1951
# PropertyChanged - signal
1952
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1340
1953
@dbus.service.signal(_interface, signature="sv")
1341
1954
def PropertyChanged(self, property, value):
1342
1955
"D-Bus signal"
1343
1956
pass
1344
1957
1345
1958
# GotSecret - signal
1346
1959
@dbus.service.signal(_interface)
1347
1960
def GotSecret(self):
1350
1963
server to mandos-client
1351
1964
"""
1352
1965
pass
1353
1966
1354
1967
# Rejected - signal
1355
1968
@dbus.service.signal(_interface, signature="s")
1356
1969
def Rejected(self, reason):
1357
1970
"D-Bus signal"
1358
1971
pass
1359
1972
1360
1973
# NeedApproval - signal
1361
1974
@dbus.service.signal(_interface, signature="tb")
1362
1975
def NeedApproval(self, timeout, default):
1363
1976
"D-Bus signal"
1364
1977
return self.need_approval()
1365
1366
## Methods
1367
1978
1979
# Methods
1980
1368
1981
# Approve - method
1369
1982
@dbus.service.method(_interface, in_signature="b")
1370
1983
def Approve(self, value):
1371
1984
self.approve(value)
1372
1985
1373
1986
# CheckedOK - method
1374
1987
@dbus.service.method(_interface)
1375
1988
def CheckedOK(self):
1376
1989
self.checked_ok()
1377
1990
1378
1991
# Enable - method
1992
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1379
1993
@dbus.service.method(_interface)
1380
1994
def Enable(self):
1381
1995
"D-Bus method"
1382
1996
self.enable()
1383
1997
1384
1998
# StartChecker - method
1999
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1385
2000
@dbus.service.method(_interface)
1386
2001
def StartChecker(self):
1387
2002
"D-Bus method"
1388
2003
self.start_checker()
1389
2004
1390
2005
# Disable - method
2006
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1391
2007
@dbus.service.method(_interface)
1392
2008
def Disable(self):
1393
2009
"D-Bus method"
1394
2010
self.disable()
1395
2011
1396
2012
# StopChecker - method
2013
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1397
2014
@dbus.service.method(_interface)
1398
2015
def StopChecker(self):
1399
2016
self.stop_checker()
1400
1401
## Properties
1402
2017
2018
# Properties
2019
1403
2020
# ApprovalPending - property
1404
2021
@dbus_service_property(_interface, signature="b", access="read")
1405
2022
def ApprovalPending_dbus_property(self):
1406
2023
return dbus.Boolean(bool(self.approvals_pending))
1407
2024
1408
2025
# ApprovedByDefault - property
1409
@dbus_service_property(_interface, signature="b",
2026
@dbus_service_property(_interface,
2027
signature="b",
1410
2028
access="readwrite")
1411
2029
def ApprovedByDefault_dbus_property(self, value=None):
1412
2030
if value is None: # get
1413
2031
return dbus.Boolean(self.approved_by_default)
1414
2032
self.approved_by_default = bool(value)
1415
2033
1416
2034
# ApprovalDelay - property
1417
@dbus_service_property(_interface, signature="t",
2035
@dbus_service_property(_interface,
2036
signature="t",
1418
2037
access="readwrite")
1419
2038
def ApprovalDelay_dbus_property(self, value=None):
1420
2039
if value is None: # get
1421
return dbus.UInt64(self.approval_delay_milliseconds())
2040
return dbus.UInt64(self.approval_delay.total_seconds()
2041
* 1000)
1422
2042
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1423
2043
1424
2044
# ApprovalDuration - property
1425
@dbus_service_property(_interface, signature="t",
2045
@dbus_service_property(_interface,
2046
signature="t",
1426
2047
access="readwrite")
1427
2048
def ApprovalDuration_dbus_property(self, value=None):
1428
2049
if value is None: # get
1429
return dbus.UInt64(timedelta_to_milliseconds(
1430
self.approval_duration))
2050
return dbus.UInt64(self.approval_duration.total_seconds()
2051
* 1000)
1431
2052
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1432
2053
1433
2054
# Name - property
2055
@dbus_annotations(
2056
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1434
2057
@dbus_service_property(_interface, signature="s", access="read")
1435
2058
def Name_dbus_property(self):
1436
2059
return dbus.String(self.name)
1437
2060
2061
# KeyID - property
2062
@dbus_annotations(
2063
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2064
@dbus_service_property(_interface, signature="s", access="read")
2065
def KeyID_dbus_property(self):
2066
return dbus.String(self.key_id)
2067
1438
2068
# Fingerprint - property
2069
@dbus_annotations(
2070
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1439
2071
@dbus_service_property(_interface, signature="s", access="read")
1440
2072
def Fingerprint_dbus_property(self):
1441
2073
return dbus.String(self.fingerprint)
1442
2074
1443
2075
# Host - property
1444
@dbus_service_property(_interface, signature="s",
2076
@dbus_service_property(_interface,
2077
signature="s",
1445
2078
access="readwrite")
1446
2079
def Host_dbus_property(self, value=None):
1447
2080
if value is None: # get
1448
2081
return dbus.String(self.host)
1449
self.host = unicode(value)
1450
2082
self.host = str(value)
2083
1451
2084
# Created - property
2085
@dbus_annotations(
2086
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1452
2087
@dbus_service_property(_interface, signature="s", access="read")
1453
2088
def Created_dbus_property(self):
1454
2089
return datetime_to_dbus(self.created)
1455
2090
1456
2091
# LastEnabled - property
1457
2092
@dbus_service_property(_interface, signature="s", access="read")
1458
2093
def LastEnabled_dbus_property(self):
1459
2094
return datetime_to_dbus(self.last_enabled)
1460
2095
1461
2096
# Enabled - property
1462
@dbus_service_property(_interface, signature="b",
2097
@dbus_service_property(_interface,
2098
signature="b",
1463
2099
access="readwrite")
1464
2100
def Enabled_dbus_property(self, value=None):
1465
2101
if value is None: # get
1468
2104
self.enable()
1469
2105
else:
1470
2106
self.disable()
1471
2107
1472
2108
# LastCheckedOK - property
1473
@dbus_service_property(_interface, signature="s",
2109
@dbus_service_property(_interface,
2110
signature="s",
1474
2111
access="readwrite")
1475
2112
def LastCheckedOK_dbus_property(self, value=None):
1476
2113
if value is not None:
1477
2114
self.checked_ok()
1478
2115
return
1479
2116
return datetime_to_dbus(self.last_checked_ok)
1480
2117
1481
2118
# LastCheckerStatus - property
1482
@dbus_service_property(_interface, signature="n",
1483
access="read")
2119
@dbus_service_property(_interface, signature="n", access="read")
1484
2120
def LastCheckerStatus_dbus_property(self):
1485
2121
return dbus.Int16(self.last_checker_status)
1486
2122
1487
2123
# Expires - property
1488
2124
@dbus_service_property(_interface, signature="s", access="read")
1489
2125
def Expires_dbus_property(self):
1490
2126
return datetime_to_dbus(self.expires)
1491
2127
1492
2128
# LastApprovalRequest - property
1493
2129
@dbus_service_property(_interface, signature="s", access="read")
1494
2130
def LastApprovalRequest_dbus_property(self):
1495
2131
return datetime_to_dbus(self.last_approval_request)
1496
2132
1497
2133
# Timeout - property
1498
@dbus_service_property(_interface, signature="t",
2134
@dbus_service_property(_interface,
2135
signature="t",
1499
2136
access="readwrite")
1500
2137
def Timeout_dbus_property(self, value=None):
1501
2138
if value is None: # get
1502
return dbus.UInt64(self.timeout_milliseconds())
2139
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2140
old_timeout = self.timeout
1503
2141
self.timeout = datetime.timedelta(0, 0, 0, value)
1504
# Reschedule timeout
2142
# Reschedule disabling
1505
2143
if self.enabled:
1506
2144
now = datetime.datetime.utcnow()
1507
time_to_die = timedelta_to_milliseconds(
1508
(self.last_checked_ok + self.timeout) - now)
1509
if time_to_die <= 0:
2145
self.expires += self.timeout - old_timeout
2146
if self.expires <= now:
1510
2147
# The timeout has passed
1511
2148
self.disable()
1512
2149
else:
1513
self.expires = (now +
1514
datetime.timedelta(milliseconds =
1515
time_to_die))
1516
2150
if (getattr(self, "disable_initiator_tag", None)
1517
2151
is None):
1518
2152
return
1519
gobject.source_remove(self.disable_initiator_tag)
1520
self.disable_initiator_tag = (gobject.timeout_add
1521
(time_to_die,
1522
self.disable))
1523
2153
GLib.source_remove(self.disable_initiator_tag)
2154
self.disable_initiator_tag = GLib.timeout_add(
2155
int((self.expires - now).total_seconds() * 1000),
2156
self.disable)
2157
1524
2158
# ExtendedTimeout - property
1525
@dbus_service_property(_interface, signature="t",
2159
@dbus_service_property(_interface,
2160
signature="t",
1526
2161
access="readwrite")
1527
2162
def ExtendedTimeout_dbus_property(self, value=None):
1528
2163
if value is None: # get
1529
return dbus.UInt64(self.extended_timeout_milliseconds())
2164
return dbus.UInt64(self.extended_timeout.total_seconds()
2165
* 1000)
1530
2166
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1531
2167
1532
2168
# Interval - property
1533
@dbus_service_property(_interface, signature="t",
2169
@dbus_service_property(_interface,
2170
signature="t",
1534
2171
access="readwrite")
1535
2172
def Interval_dbus_property(self, value=None):
1536
2173
if value is None: # get
1537
return dbus.UInt64(self.interval_milliseconds())
2174
return dbus.UInt64(self.interval.total_seconds() * 1000)
1538
2175
self.interval = datetime.timedelta(0, 0, 0, value)
1539
2176
if getattr(self, "checker_initiator_tag", None) is None:
1540
2177
return
1541
2178
if self.enabled:
1542
2179
# Reschedule checker run
1543
gobject.source_remove(self.checker_initiator_tag)
1544
self.checker_initiator_tag = (gobject.timeout_add
1545
(value, self.start_checker))
1546
self.start_checker() # Start one now, too
1547
2180
GLib.source_remove(self.checker_initiator_tag)
2181
self.checker_initiator_tag = GLib.timeout_add(
2182
value, self.start_checker)
2183
self.start_checker() # Start one now, too
2184
1548
2185
# Checker - property
1549
@dbus_service_property(_interface, signature="s",
2186
@dbus_service_property(_interface,
2187
signature="s",
1550
2188
access="readwrite")
1551
2189
def Checker_dbus_property(self, value=None):
1552
2190
if value is None: # get
1553
2191
return dbus.String(self.checker_command)
1554
self.checker_command = unicode(value)
1555
2192
self.checker_command = str(value)
2193
1556
2194
# CheckerRunning - property
1557
@dbus_service_property(_interface, signature="b",
2195
@dbus_service_property(_interface,
2196
signature="b",
1558
2197
access="readwrite")
1559
2198
def CheckerRunning_dbus_property(self, value=None):
1560
2199
if value is None: # get
1563
2202
self.start_checker()
1564
2203
else:
1565
2204
self.stop_checker()
1566
2205
1567
2206
# ObjectPath - property
2207
@dbus_annotations(
2208
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2209
"org.freedesktop.DBus.Deprecated": "true"})
1568
2210
@dbus_service_property(_interface, signature="o", access="read")
1569
2211
def ObjectPath_dbus_property(self):
1570
return self.dbus_object_path # is already a dbus.ObjectPath
1571
2212
return self.dbus_object_path # is already a dbus.ObjectPath
2213
1572
2214
# Secret = property
1573
@dbus_service_property(_interface, signature="ay",
1574
access="write", byte_arrays=True)
2215
@dbus_annotations(
2216
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2217
"invalidates"})
2218
@dbus_service_property(_interface,
2219
signature="ay",
2220
access="write",
2221
byte_arrays=True)
1575
2222
def Secret_dbus_property(self, value):
1576
self.secret = str(value)
1577
2223
self.secret = bytes(value)
2224
1578
2225
del _interface
1579
2226
1580
2227
1581
class ProxyClient(object):
1582
def __init__(self, child_pipe, fpr, address):
2228
class ProxyClient:
2229
def __init__(self, child_pipe, key_id, fpr, address):
1583
2230
self._pipe = child_pipe
1584
self._pipe.send(('init', fpr, address))
2231
self._pipe.send(('init', key_id, fpr, address))
1585
2232
if not self._pipe.recv():
1586
raise KeyError()
1587
2233
raise KeyError(key_id or fpr)
2234
1588
2235
def __getattribute__(self, name):
1589
2236
if name == '_pipe':
1590
2237
return super(ProxyClient, self).__getattribute__(name)
1593
2240
if data[0] == 'data':
1594
2241
return data[1]
1595
2242
if data[0] == 'function':
2243
1596
2244
def func(*args, **kwargs):
1597
2245
self._pipe.send(('funcall', name, args, kwargs))
1598
2246
return self._pipe.recv()[1]
2247
1599
2248
return func
1600
2249
1601
2250
def __setattr__(self, name, value):
1602
2251
if name == '_pipe':
1603
2252
return super(ProxyClient, self).__setattr__(name, value)
1604
2253
self._pipe.send(('setattr', name, value))
1605
2254
1606
2255
1607
class ClientDBusTransitional(ClientDBus):
1608
__metaclass__ = AlternateDBusNamesMetaclass
1609
1610
1611
2256
class ClientHandler(socketserver.BaseRequestHandler, object):
1612
2257
"""A class to handle client connections.
1613
2258
1614
2259
Instantiated once for each connection to handle it.
1615
2260
Note: This will run in its own forked process."""
1616
2261
1617
2262
def handle(self):
1618
2263
with contextlib.closing(self.server.child_pipe) as child_pipe:
1619
2264
logger.info("TCP connection from: %s",
1620
unicode(self.client_address))
2265
str(self.client_address))
1621
2266
logger.debug("Pipe FD: %d",
1622
2267
self.server.child_pipe.fileno())
1623
1624
session = (gnutls.connection
1625
.ClientSession(self.request,
1626
gnutls.connection
1627
.X509Credentials()))
1628
1629
# Note: gnutls.connection.X509Credentials is really a
1630
# generic GnuTLS certificate credentials object so long as
1631
# no X.509 keys are added to it. Therefore, we can use it
1632
# here despite using OpenPGP certificates.
1633
1634
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1635
# "+AES-256-CBC", "+SHA1",
1636
# "+COMP-NULL", "+CTYPE-OPENPGP",
1637
# "+DHE-DSS"))
2268
2269
session = gnutls.ClientSession(self.request)
2270
2271
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2272
# "+AES-256-CBC", "+SHA1",
2273
# "+COMP-NULL", "+CTYPE-OPENPGP",
2274
# "+DHE-DSS"))
1638
2275
# Use a fallback default, since this MUST be set.
1639
2276
priority = self.server.gnutls_priority
1640
2277
if priority is None:
1641
2278
priority = "NORMAL"
1642
(gnutls.library.functions
1643
.gnutls_priority_set_direct(session._c_object,
1644
priority, None))
1645
2279
gnutls.priority_set_direct(session._c_object,
2280
priority.encode("utf-8"),
2281
None)
2282
1646
2283
# Start communication using the Mandos protocol
1647
2284
# Get protocol number
1648
2285
line = self.request.makefile().readline()
1649
2286
logger.debug("Protocol version: %r", line)
1650
2287
try:
1651
2288
if int(line.strip().split()[0]) > 1:
1652
raise RuntimeError
2289
raise RuntimeError(line)
1653
2290
except (ValueError, IndexError, RuntimeError) as error:
1654
2291
logger.error("Unknown protocol version: %s", error)
1655
2292
return
1656
2293
1657
2294
# Start GnuTLS connection
1658
2295
try:
1659
2296
session.handshake()
1660
except gnutls.errors.GNUTLSError as error:
2297
except gnutls.Error as error:
1661
2298
logger.warning("Handshake failed: %s", error)
1662
2299
# Do not run session.bye() here: the session is not
1663
2300
# established. Just abandon the request.
1664
2301
return
1665
2302
logger.debug("Handshake succeeded")
1666
2303
1667
2304
approval_required = False
1668
2305
try:
1669
try:
1670
fpr = self.fingerprint(self.peer_certificate
1671
(session))
1672
except (TypeError,
1673
gnutls.errors.GNUTLSError) as error:
1674
logger.warning("Bad certificate: %s", error)
1675
return
1676
logger.debug("Fingerprint: %s", fpr)
1677
1678
try:
1679
client = ProxyClient(child_pipe, fpr,
2306
if gnutls.has_rawpk:
2307
fpr = b""
2308
try:
2309
key_id = self.key_id(
2310
self.peer_certificate(session))
2311
except (TypeError, gnutls.Error) as error:
2312
logger.warning("Bad certificate: %s", error)
2313
return
2314
logger.debug("Key ID: %s", key_id)
2315
2316
else:
2317
key_id = b""
2318
try:
2319
fpr = self.fingerprint(
2320
self.peer_certificate(session))
2321
except (TypeError, gnutls.Error) as error:
2322
logger.warning("Bad certificate: %s", error)
2323
return
2324
logger.debug("Fingerprint: %s", fpr)
2325
2326
try:
2327
client = ProxyClient(child_pipe, key_id, fpr,
1680
2328
self.client_address)
1681
2329
except KeyError:
1682
2330
return
1683
2331
1684
2332
if client.approval_delay:
1685
2333
delay = client.approval_delay
1686
2334
client.approvals_pending += 1
1687
2335
approval_required = True
1688
2336
1689
2337
while True:
1690
2338
if not client.enabled:
1691
2339
logger.info("Client %s is disabled",
1692
client.name)
2340
client.name)
1693
2341
if self.server.use_dbus:
1694
2342
# Emit D-Bus signal
1695
2343
client.Rejected("Disabled")
1696
2344
return
1697
2345
1698
2346
if client.approved or not client.approval_delay:
1699
#We are approved or approval is disabled
2347
# We are approved or approval is disabled
1700
2348
break
1701
2349
elif client.approved is None:
1702
2350
logger.info("Client %s needs approval",
1704
2352
if self.server.use_dbus:
1705
2353
# Emit D-Bus signal
1706
2354
client.NeedApproval(
1707
client.approval_delay_milliseconds(),
1708
client.approved_by_default)
2355
client.approval_delay.total_seconds()
2356
* 1000, client.approved_by_default)
1709
2357
else:
1710
2358
logger.warning("Client %s was not approved",
1711
2359
client.name)
1713
2361
# Emit D-Bus signal
1714
2362
client.Rejected("Denied")
1715
2363
return
1716
1717
#wait until timeout or approved
2364
2365
# wait until timeout or approved
1718
2366
time = datetime.datetime.now()
1719
2367
client.changedstate.acquire()
1720
(client.changedstate.wait
1721
(float(client.timedelta_to_milliseconds(delay)
1722
/ 1000)))
2368
client.changedstate.wait(delay.total_seconds())
1723
2369
client.changedstate.release()
1724
2370
time2 = datetime.datetime.now()
1725
2371
if (time2 - time) >= delay:
1735
2381
break
1736
2382
else:
1737
2383
delay -= time2 - time
1738
1739
sent_size = 0
1740
while sent_size < len(client.secret):
1741
try:
1742
sent = session.send(client.secret[sent_size:])
1743
except gnutls.errors.GNUTLSError as error:
1744
logger.warning("gnutls send failed")
1745
return
1746
logger.debug("Sent: %d, remaining: %d",
1747
sent, len(client.secret)
1748
- (sent_size + sent))
1749
sent_size += sent
1750
2384
2385
try:
2386
session.send(client.secret)
2387
except gnutls.Error as error:
2388
logger.warning("gnutls send failed",
2389
exc_info=error)
2390
return
2391
1751
2392
logger.info("Sending secret to %s", client.name)
1752
2393
# bump the timeout using extended_timeout
1753
2394
client.bump_timeout(client.extended_timeout)
1754
2395
if self.server.use_dbus:
1755
2396
# Emit D-Bus signal
1756
2397
client.GotSecret()
1757
2398
1758
2399
finally:
1759
2400
if approval_required:
1760
2401
client.approvals_pending -= 1
1761
2402
try:
1762
2403
session.bye()
1763
except gnutls.errors.GNUTLSError as error:
1764
logger.warning("GnuTLS bye failed")
1765
2404
except gnutls.Error as error:
2405
logger.warning("GnuTLS bye failed",
2406
exc_info=error)
2407
1766
2408
@staticmethod
1767
2409
def peer_certificate(session):
1768
"Return the peer's OpenPGP certificate as a bytestring"
1769
# If not an OpenPGP certificate...
1770
if (gnutls.library.functions
1771
.gnutls_certificate_type_get(session._c_object)
1772
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1773
# ...do the normal thing
1774
return session.peer_certificate
2410
"Return the peer's certificate as a bytestring"
2411
try:
2412
cert_type = gnutls.certificate_type_get2(session._c_object,
2413
gnutls.CTYPE_PEERS)
2414
except AttributeError:
2415
cert_type = gnutls.certificate_type_get(session._c_object)
2416
if gnutls.has_rawpk:
2417
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2418
else:
2419
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2420
# If not a valid certificate type...
2421
if cert_type not in valid_cert_types:
2422
logger.info("Cert type %r not in %r", cert_type,
2423
valid_cert_types)
2424
# ...return invalid data
2425
return b""
1775
2426
list_size = ctypes.c_uint(1)
1776
cert_list = (gnutls.library.functions
1777
.gnutls_certificate_get_peers
2427
cert_list = (gnutls.certificate_get_peers
1778
2428
(session._c_object, ctypes.byref(list_size)))
1779
2429
if not bool(cert_list) and list_size.value != 0:
1780
raise gnutls.errors.GNUTLSError("error getting peer"
1781
" certificate")
2430
raise gnutls.Error("error getting peer certificate")
1782
2431
if list_size.value == 0:
1783
2432
return None
1784
2433
cert = cert_list[0]
1785
2434
return ctypes.string_at(cert.data, cert.size)
1786
2435
2436
@staticmethod
2437
def key_id(certificate):
2438
"Convert a certificate bytestring to a hexdigit key ID"
2439
# New GnuTLS "datum" with the public key
2440
datum = gnutls.datum_t(
2441
ctypes.cast(ctypes.c_char_p(certificate),
2442
ctypes.POINTER(ctypes.c_ubyte)),
2443
ctypes.c_uint(len(certificate)))
2444
# XXX all these need to be created in the gnutls "module"
2445
# New empty GnuTLS certificate
2446
pubkey = gnutls.pubkey_t()
2447
gnutls.pubkey_init(ctypes.byref(pubkey))
2448
# Import the raw public key into the certificate
2449
gnutls.pubkey_import(pubkey,
2450
ctypes.byref(datum),
2451
gnutls.X509_FMT_DER)
2452
# New buffer for the key ID
2453
buf = ctypes.create_string_buffer(32)
2454
buf_len = ctypes.c_size_t(len(buf))
2455
# Get the key ID from the raw public key into the buffer
2456
gnutls.pubkey_get_key_id(pubkey,
2457
gnutls.KEYID_USE_SHA256,
2458
ctypes.cast(ctypes.byref(buf),
2459
ctypes.POINTER(ctypes.c_ubyte)),
2460
ctypes.byref(buf_len))
2461
# Deinit the certificate
2462
gnutls.pubkey_deinit(pubkey)
2463
2464
# Convert the buffer to a Python bytestring
2465
key_id = ctypes.string_at(buf, buf_len.value)
2466
# Convert the bytestring to hexadecimal notation
2467
hex_key_id = binascii.hexlify(key_id).upper()
2468
return hex_key_id
2469
1787
2470
@staticmethod
1788
2471
def fingerprint(openpgp):
1789
2472
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1790
2473
# New GnuTLS "datum" with the OpenPGP public key
1791
datum = (gnutls.library.types
1792
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1793
ctypes.POINTER
1794
(ctypes.c_ubyte)),
1795
ctypes.c_uint(len(openpgp))))
2474
datum = gnutls.datum_t(
2475
ctypes.cast(ctypes.c_char_p(openpgp),
2476
ctypes.POINTER(ctypes.c_ubyte)),
2477
ctypes.c_uint(len(openpgp)))
1796
2478
# New empty GnuTLS certificate
1797
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1798
(gnutls.library.functions
1799
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2479
crt = gnutls.openpgp_crt_t()
2480
gnutls.openpgp_crt_init(ctypes.byref(crt))
1800
2481
# Import the OpenPGP public key into the certificate
1801
(gnutls.library.functions
1802
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1803
gnutls.library.constants
1804
.GNUTLS_OPENPGP_FMT_RAW))
2482
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2483
gnutls.OPENPGP_FMT_RAW)
1805
2484
# Verify the self signature in the key
1806
2485
crtverify = ctypes.c_uint()
1807
(gnutls.library.functions
1808
.gnutls_openpgp_crt_verify_self(crt, 0,
1809
ctypes.byref(crtverify)))
2486
gnutls.openpgp_crt_verify_self(crt, 0,
2487
ctypes.byref(crtverify))
1810
2488
if crtverify.value != 0:
1811
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1812
raise (gnutls.errors.CertificateSecurityError
1813
("Verify failed"))
2489
gnutls.openpgp_crt_deinit(crt)
2490
raise gnutls.CertificateSecurityError(code
2491
=crtverify.value)
1814
2492
# New buffer for the fingerprint
1815
2493
buf = ctypes.create_string_buffer(20)
1816
2494
buf_len = ctypes.c_size_t()
1817
2495
# Get the fingerprint from the certificate into the buffer
1818
(gnutls.library.functions
1819
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1820
ctypes.byref(buf_len)))
2496
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2497
ctypes.byref(buf_len))
1821
2498
# Deinit the certificate
1822
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2499
gnutls.openpgp_crt_deinit(crt)
1823
2500
# Convert the buffer to a Python bytestring
1824
2501
fpr = ctypes.string_at(buf, buf_len.value)
1825
2502
# Convert the bytestring to hexadecimal notation
1827
2504
return hex_fpr
1828
2505
1829
2506
1830
class MultiprocessingMixIn(object):
2507
class MultiprocessingMixIn:
1831
2508
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2509
1832
2510
def sub_process_main(self, request, address):
1833
2511
try:
1834
2512
self.finish_request(request, address)
1835
2513
except Exception:
1836
2514
self.handle_error(request, address)
1837
2515
self.close_request(request)
1838
2516
1839
2517
def process_request(self, request, address):
1840
2518
"""Start a new process to process the request."""
1841
proc = multiprocessing.Process(target = self.sub_process_main,
1842
args = (request,
1843
address))
2519
proc = multiprocessing.Process(target=self.sub_process_main,
2520
args=(request, address))
1844
2521
proc.start()
1845
2522
return proc
1846
2523
1847
2524
1848
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2525
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1849
2526
""" adds a pipe to the MixIn """
2527
1850
2528
def process_request(self, request, client_address):
1851
2529
"""Overrides and wraps the original process_request().
1852
2530
1853
2531
This function creates a new pipe in self.pipe
1854
2532
"""
1855
2533
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1856
2534
1857
2535
proc = MultiprocessingMixIn.process_request(self, request,
1858
2536
client_address)
1859
2537
self.child_pipe.close()
1860
2538
self.add_pipe(parent_pipe, proc)
1861
2539
1862
2540
def add_pipe(self, parent_pipe, proc):
1863
2541
"""Dummy function; override as necessary"""
1864
raise NotImplementedError
2542
raise NotImplementedError()
1865
2543
1866
2544
1867
2545
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1868
socketserver.TCPServer, object):
2546
socketserver.TCPServer):
1869
2547
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1870
2548
1871
2549
Attributes:
1872
2550
enabled: Boolean; whether this server is activated yet
1873
2551
interface: None or a network interface name (string)
1874
2552
use_ipv6: Boolean; to use IPv6 or not
1875
2553
"""
2554
1876
2555
def __init__(self, server_address, RequestHandlerClass,
1877
interface=None, use_ipv6=True):
2556
interface=None,
2557
use_ipv6=True,
2558
socketfd=None):
2559
"""If socketfd is set, use that file descriptor instead of
2560
creating a new one with socket.socket().
2561
"""
1878
2562
self.interface = interface
1879
2563
if use_ipv6:
1880
2564
self.address_family = socket.AF_INET6
2565
if socketfd is not None:
2566
# Save the file descriptor
2567
self.socketfd = socketfd
2568
# Save the original socket.socket() function
2569
self.socket_socket = socket.socket
2570
2571
# To implement --socket, we monkey patch socket.socket.
2572
#
2573
# (When socketserver.TCPServer is a new-style class, we
2574
# could make self.socket into a property instead of monkey
2575
# patching socket.socket.)
2576
#
2577
# Create a one-time-only replacement for socket.socket()
2578
@functools.wraps(socket.socket)
2579
def socket_wrapper(*args, **kwargs):
2580
# Restore original function so subsequent calls are
2581
# not affected.
2582
socket.socket = self.socket_socket
2583
del self.socket_socket
2584
# This time only, return a new socket object from the
2585
# saved file descriptor.
2586
return socket.fromfd(self.socketfd, *args, **kwargs)
2587
# Replace socket.socket() function with wrapper
2588
socket.socket = socket_wrapper
2589
# The socketserver.TCPServer.__init__ will call
2590
# socket.socket(), which might be our replacement,
2591
# socket_wrapper(), if socketfd was set.
1881
2592
socketserver.TCPServer.__init__(self, server_address,
1882
2593
RequestHandlerClass)
2594
1883
2595
def server_bind(self):
1884
2596
"""This overrides the normal server_bind() function
1885
2597
to bind to an interface if one was specified, and also NOT to
1886
2598
bind to an address or port if they were not specified."""
2599
global SO_BINDTODEVICE
1887
2600
if self.interface is not None:
1888
2601
if SO_BINDTODEVICE is None:
1889
logger.error("SO_BINDTODEVICE does not exist;"
1890
" cannot bind to interface %s",
1891
self.interface)
1892
else:
1893
try:
1894
self.socket.setsockopt(socket.SOL_SOCKET,
1895
SO_BINDTODEVICE,
1896
str(self.interface
1897
+ '\0'))
1898
except socket.error as error:
1899
if error[0] == errno.EPERM:
1900
logger.error("No permission to"
1901
" bind to interface %s",
1902
self.interface)
1903
elif error[0] == errno.ENOPROTOOPT:
1904
logger.error("SO_BINDTODEVICE not available;"
1905
" cannot bind to interface %s",
1906
self.interface)
1907
else:
1908
raise
2602
# Fall back to a hard-coded value which seems to be
2603
# common enough.
2604
logger.warning("SO_BINDTODEVICE not found, trying 25")
2605
SO_BINDTODEVICE = 25
2606
try:
2607
self.socket.setsockopt(
2608
socket.SOL_SOCKET, SO_BINDTODEVICE,
2609
(self.interface + "\0").encode("utf-8"))
2610
except socket.error as error:
2611
if error.errno == errno.EPERM:
2612
logger.error("No permission to bind to"
2613
" interface %s", self.interface)
2614
elif error.errno == errno.ENOPROTOOPT:
2615
logger.error("SO_BINDTODEVICE not available;"
2616
" cannot bind to interface %s",
2617
self.interface)
2618
elif error.errno == errno.ENODEV:
2619
logger.error("Interface %s does not exist,"
2620
" cannot bind", self.interface)
2621
else:
2622
raise
1909
2623
# Only bind(2) the socket if we really need to.
1910
2624
if self.server_address[0] or self.server_address[1]:
2625
if self.server_address[1]:
2626
self.allow_reuse_address = True
1911
2627
if not self.server_address[0]:
1912
2628
if self.address_family == socket.AF_INET6:
1913
any_address = "::" # in6addr_any
2629
any_address = "::" # in6addr_any
1914
2630
else:
1915
any_address = socket.INADDR_ANY
2631
any_address = "0.0.0.0" # INADDR_ANY
1916
2632
self.server_address = (any_address,
1917
2633
self.server_address[1])
1918
2634
elif not self.server_address[1]:
1919
self.server_address = (self.server_address[0],
1920
0)
2635
self.server_address = (self.server_address[0], 0)
1921
2636
# if self.interface:
1922
2637
# self.server_address = (self.server_address[0],
1923
2638
# 0, # port
1929
2644
1930
2645
class MandosServer(IPv6_TCPServer):
1931
2646
"""Mandos server.
1932
2647
1933
2648
Attributes:
1934
2649
clients: set of Client objects
1935
2650
gnutls_priority GnuTLS priority string
1936
2651
use_dbus: Boolean; to emit D-Bus signals or not
1937
1938
Assumes a gobject.MainLoop event loop.
2652
2653
Assumes a GLib.MainLoop event loop.
1939
2654
"""
2655
1940
2656
def __init__(self, server_address, RequestHandlerClass,
1941
interface=None, use_ipv6=True, clients=None,
1942
gnutls_priority=None, use_dbus=True):
2657
interface=None,
2658
use_ipv6=True,
2659
clients=None,
2660
gnutls_priority=None,
2661
use_dbus=True,
2662
socketfd=None):
1943
2663
self.enabled = False
1944
2664
self.clients = clients
1945
2665
if self.clients is None:
1948
2668
self.gnutls_priority = gnutls_priority
1949
2669
IPv6_TCPServer.__init__(self, server_address,
1950
2670
RequestHandlerClass,
1951
interface = interface,
1952
use_ipv6 = use_ipv6)
2671
interface=interface,
2672
use_ipv6=use_ipv6,
2673
socketfd=socketfd)
2674
1953
2675
def server_activate(self):
1954
2676
if self.enabled:
1955
2677
return socketserver.TCPServer.server_activate(self)
1956
2678
1957
2679
def enable(self):
1958
2680
self.enabled = True
1959
2681
1960
2682
def add_pipe(self, parent_pipe, proc):
1961
2683
# Call "handle_ipc" for both data and EOF events
1962
gobject.io_add_watch(parent_pipe.fileno(),
1963
gobject.IO_IN | gobject.IO_HUP,
1964
functools.partial(self.handle_ipc,
1965
parent_pipe =
1966
parent_pipe,
1967
proc = proc))
1968
1969
def handle_ipc(self, source, condition, parent_pipe=None,
1970
proc = None, client_object=None):
1971
condition_names = {
1972
gobject.IO_IN: "IN", # There is data to read.
1973
gobject.IO_OUT: "OUT", # Data can be written (without
1974
# blocking).
1975
gobject.IO_PRI: "PRI", # There is urgent data to read.
1976
gobject.IO_ERR: "ERR", # Error condition.
1977
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1978
# broken, usually for pipes and
1979
# sockets).
1980
}
1981
conditions_string = ' | '.join(name
1982
for cond, name in
1983
condition_names.iteritems()
1984
if cond & condition)
2684
GLib.io_add_watch(
2685
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2686
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2687
functools.partial(self.handle_ipc,
2688
parent_pipe=parent_pipe,
2689
proc=proc))
2690
2691
def handle_ipc(self, source, condition,
2692
parent_pipe=None,
2693
proc=None,
2694
client_object=None):
1985
2695
# error, or the other end of multiprocessing.Pipe has closed
1986
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2696
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1987
2697
# Wait for other process to exit
1988
2698
proc.join()
1989
2699
return False
1990
2700
1991
2701
# Read a request from the child
1992
2702
request = parent_pipe.recv()
1993
2703
command = request[0]
1994
2704
1995
2705
if command == 'init':
1996
fpr = request[1]
1997
address = request[2]
1998
1999
for c in self.clients.itervalues():
2000
if c.fingerprint == fpr:
2706
key_id = request[1].decode("ascii")
2707
fpr = request[2].decode("ascii")
2708
address = request[3]
2709
2710
for c in self.clients.values():
2711
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2712
continue
2713
if key_id and c.key_id == key_id:
2714
client = c
2715
break
2716
if fpr and c.fingerprint == fpr:
2001
2717
client = c
2002
2718
break
2003
2719
else:
2004
logger.info("Client not found for fingerprint: %s, ad"
2005
"dress: %s", fpr, address)
2720
logger.info("Client not found for key ID: %s, address"
2721
": %s", key_id or fpr, address)
2006
2722
if self.use_dbus:
2007
2723
# Emit D-Bus signal
2008
mandos_dbus_service.ClientNotFound(fpr,
2724
mandos_dbus_service.ClientNotFound(key_id or fpr,
2009
2725
address[0])
2010
2726
parent_pipe.send(False)
2011
2727
return False
2012
2013
gobject.io_add_watch(parent_pipe.fileno(),
2014
gobject.IO_IN | gobject.IO_HUP,
2015
functools.partial(self.handle_ipc,
2016
parent_pipe =
2017
parent_pipe,
2018
proc = proc,
2019
client_object =
2020
client))
2728
2729
GLib.io_add_watch(
2730
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2731
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2732
functools.partial(self.handle_ipc,
2733
parent_pipe=parent_pipe,
2734
proc=proc,
2735
client_object=client))
2021
2736
parent_pipe.send(True)
2022
2737
# remove the old hook in favor of the new above hook on
2023
2738
# same fileno
2026
2741
funcname = request[1]
2027
2742
args = request[2]
2028
2743
kwargs = request[3]
2029
2744
2030
2745
parent_pipe.send(('data', getattr(client_object,
2031
2746
funcname)(*args,
2032
**kwargs)))
2033
2747
**kwargs)))
2748
2034
2749
if command == 'getattr':
2035
2750
attrname = request[1]
2036
if callable(client_object.__getattribute__(attrname)):
2037
parent_pipe.send(('function',))
2751
if isinstance(client_object.__getattribute__(attrname),
2752
collections.Callable):
2753
parent_pipe.send(('function', ))
2038
2754
else:
2039
parent_pipe.send(('data', client_object
2040
.__getattribute__(attrname)))
2041
2755
parent_pipe.send((
2756
'data', client_object.__getattribute__(attrname)))
2757
2042
2758
if command == 'setattr':
2043
2759
attrname = request[1]
2044
2760
value = request[2]
2045
2761
setattr(client_object, attrname, value)
2046
2762
2047
2763
return True
2048
2764
2049
2765
2766
def rfc3339_duration_to_delta(duration):
2767
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2768
2769
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2770
True
2771
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2772
True
2773
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2774
True
2775
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2776
True
2777
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2778
True
2779
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2780
True
2781
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2782
True
2783
"""
2784
2785
# Parsing an RFC 3339 duration with regular expressions is not
2786
# possible - there would have to be multiple places for the same
2787
# values, like seconds. The current code, while more esoteric, is
2788
# cleaner without depending on a parsing library. If Python had a
2789
# built-in library for parsing we would use it, but we'd like to
2790
# avoid excessive use of external libraries.
2791
2792
# New type for defining tokens, syntax, and semantics all-in-one
2793
Token = collections.namedtuple("Token", (
2794
"regexp", # To match token; if "value" is not None, must have
2795
# a "group" containing digits
2796
"value", # datetime.timedelta or None
2797
"followers")) # Tokens valid after this token
2798
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2799
# the "duration" ABNF definition in RFC 3339, Appendix A.
2800
token_end = Token(re.compile(r"$"), None, frozenset())
2801
token_second = Token(re.compile(r"(\d+)S"),
2802
datetime.timedelta(seconds=1),
2803
frozenset((token_end, )))
2804
token_minute = Token(re.compile(r"(\d+)M"),
2805
datetime.timedelta(minutes=1),
2806
frozenset((token_second, token_end)))
2807
token_hour = Token(re.compile(r"(\d+)H"),
2808
datetime.timedelta(hours=1),
2809
frozenset((token_minute, token_end)))
2810
token_time = Token(re.compile(r"T"),
2811
None,
2812
frozenset((token_hour, token_minute,
2813
token_second)))
2814
token_day = Token(re.compile(r"(\d+)D"),
2815
datetime.timedelta(days=1),
2816
frozenset((token_time, token_end)))
2817
token_month = Token(re.compile(r"(\d+)M"),
2818
datetime.timedelta(weeks=4),
2819
frozenset((token_day, token_end)))
2820
token_year = Token(re.compile(r"(\d+)Y"),
2821
datetime.timedelta(weeks=52),
2822
frozenset((token_month, token_end)))
2823
token_week = Token(re.compile(r"(\d+)W"),
2824
datetime.timedelta(weeks=1),
2825
frozenset((token_end, )))
2826
token_duration = Token(re.compile(r"P"), None,
2827
frozenset((token_year, token_month,
2828
token_day, token_time,
2829
token_week)))
2830
# Define starting values:
2831
# Value so far
2832
value = datetime.timedelta()
2833
found_token = None
2834
# Following valid tokens
2835
followers = frozenset((token_duration, ))
2836
# String left to parse
2837
s = duration
2838
# Loop until end token is found
2839
while found_token is not token_end:
2840
# Search for any currently valid tokens
2841
for token in followers:
2842
match = token.regexp.match(s)
2843
if match is not None:
2844
# Token found
2845
if token.value is not None:
2846
# Value found, parse digits
2847
factor = int(match.group(1), 10)
2848
# Add to value so far
2849
value += factor * token.value
2850
# Strip token from string
2851
s = token.regexp.sub("", s, 1)
2852
# Go to found token
2853
found_token = token
2854
# Set valid next tokens
2855
followers = found_token.followers
2856
break
2857
else:
2858
# No currently valid tokens were found
2859
raise ValueError("Invalid RFC 3339 duration: {!r}"
2860
.format(duration))
2861
# End token found
2862
return value
2863
2864
2050
2865
def string_to_delta(interval):
2051
2866
"""Parse a string and return a datetime.timedelta
2052
2053
>>> string_to_delta('7d')
2054
datetime.timedelta(7)
2055
>>> string_to_delta('60s')
2056
datetime.timedelta(0, 60)
2057
>>> string_to_delta('60m')
2058
datetime.timedelta(0, 3600)
2059
>>> string_to_delta('24h')
2060
datetime.timedelta(1)
2061
>>> string_to_delta('1w')
2062
datetime.timedelta(7)
2063
>>> string_to_delta('5m 30s')
2064
datetime.timedelta(0, 330)
2867
2868
>>> string_to_delta('7d') == datetime.timedelta(7)
2869
True
2870
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2871
True
2872
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2873
True
2874
>>> string_to_delta('24h') == datetime.timedelta(1)
2875
True
2876
>>> string_to_delta('1w') == datetime.timedelta(7)
2877
True
2878
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2879
True
2065
2880
"""
2881
2882
try:
2883
return rfc3339_duration_to_delta(interval)
2884
except ValueError:
2885
pass
2886
2066
2887
timevalue = datetime.timedelta(0)
2067
2888
for s in interval.split():
2068
2889
try:
2069
suffix = unicode(s[-1])
2890
suffix = s[-1]
2070
2891
value = int(s[:-1])
2071
2892
if suffix == "d":
2072
2893
delta = datetime.timedelta(value)
2079
2900
elif suffix == "w":
2080
2901
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2081
2902
else:
2082
raise ValueError("Unknown suffix %r" % suffix)
2083
except (ValueError, IndexError) as e:
2903
raise ValueError("Unknown suffix {!r}".format(suffix))
2904
except IndexError as e:
2084
2905
raise ValueError(*(e.args))
2085
2906
timevalue += delta
2086
2907
return timevalue
2087
2908
2088
2909
2089
def daemon(nochdir = False, noclose = False):
2910
def daemon(nochdir=False, noclose=False):
2090
2911
"""See daemon(3). Standard BSD Unix function.
2091
2912
2092
2913
This should really exist as os.daemon, but it doesn't (yet)."""
2093
2914
if os.fork():
2094
2915
sys.exit()
2102
2923
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2103
2924
if not stat.S_ISCHR(os.fstat(null).st_mode):
2104
2925
raise OSError(errno.ENODEV,
2105
"%s not a character device"
2106
% os.devnull)
2926
"{} not a character device"
2927
.format(os.devnull))
2107
2928
os.dup2(null, sys.stdin.fileno())
2108
2929
os.dup2(null, sys.stdout.fileno())
2109
2930
os.dup2(null, sys.stderr.fileno())
2112
2933
2113
2934
2114
2935
def main():
2115
2936
2116
2937
##################################################################
2117
2938
# Parsing of options, both command line and config file
2118
2939
2119
2940
parser = argparse.ArgumentParser()
2120
2941
parser.add_argument("-v", "--version", action="version",
2121
version = "%%(prog)s %s" % version,
2942
version="%(prog)s {}".format(version),
2122
2943
help="show version number and exit")
2123
2944
parser.add_argument("-i", "--interface", metavar="IF",
2124
2945
help="Bind to interface IF")
2130
2951
help="Run self-test")
2131
2952
parser.add_argument("--debug", action="store_true",
2132
2953
help="Debug mode; run in foreground and log"
2133
" to terminal")
2954
" to terminal", default=None)
2134
2955
parser.add_argument("--debuglevel", metavar="LEVEL",
2135
2956
help="Debug level for stdout output")
2136
2957
parser.add_argument("--priority", help="GnuTLS"
2143
2964
" files")
2144
2965
parser.add_argument("--no-dbus", action="store_false",
2145
2966
dest="use_dbus", help="Do not provide D-Bus"
2146
" system bus interface")
2967
" system bus interface", default=None)
2147
2968
parser.add_argument("--no-ipv6", action="store_false",
2148
dest="use_ipv6", help="Do not use IPv6")
2969
dest="use_ipv6", help="Do not use IPv6",
2970
default=None)
2149
2971
parser.add_argument("--no-restore", action="store_false",
2150
2972
dest="restore", help="Do not restore stored"
2151
" state")
2973
" state", default=None)
2974
parser.add_argument("--socket", type=int,
2975
help="Specify a file descriptor to a network"
2976
" socket to use instead of creating one")
2152
2977
parser.add_argument("--statedir", metavar="DIR",
2153
2978
help="Directory to save/restore state in")
2154
2979
parser.add_argument("--foreground", action="store_true",
2980
help="Run in foreground", default=None)
2981
parser.add_argument("--no-zeroconf", action="store_false",
2982
dest="zeroconf", help="Do not use Zeroconf",
2983
default=None)
2984
2155
2985
options = parser.parse_args()
2156
2157
if options.check:
2158
import doctest
2159
doctest.testmod()
2160
sys.exit()
2161
2986
2162
2987
# Default values for config file for server-global settings
2163
server_defaults = { "interface": "",
2164
"address": "",
2165
"port": "",
2166
"debug": "False",
2167
"priority":
2168
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2169
"servicename": "Mandos",
2170
"use_dbus": "True",
2171
"use_ipv6": "True",
2172
"debuglevel": "",
2173
"restore": "True",
2174
"statedir": "/var/lib/mandos"
2175
}
2176
2988
if gnutls.has_rawpk:
2989
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2990
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2991
else:
2992
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2993
":+SIGN-DSA-SHA256")
2994
server_defaults = {"interface": "",
2995
"address": "",
2996
"port": "",
2997
"debug": "False",
2998
"priority": priority,
2999
"servicename": "Mandos",
3000
"use_dbus": "True",
3001
"use_ipv6": "True",
3002
"debuglevel": "",
3003
"restore": "True",
3004
"socket": "",
3005
"statedir": "/var/lib/mandos",
3006
"foreground": "False",
3007
"zeroconf": "True",
3008
}
3009
del priority
3010
2177
3011
# Parse config file for server-global settings
2178
server_config = configparser.SafeConfigParser(server_defaults)
3012
server_config = configparser.ConfigParser(server_defaults)
2179
3013
del server_defaults
2180
server_config.read(os.path.join(options.configdir,
2181
"mandos.conf"))
2182
# Convert the SafeConfigParser object to a dict
3014
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3015
# Convert the ConfigParser object to a dict
2183
3016
server_settings = server_config.defaults()
2184
3017
# Use the appropriate methods on the non-string config options
2185
for option in ("debug", "use_dbus", "use_ipv6"):
3018
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3019
"foreground", "zeroconf"):
2186
3020
server_settings[option] = server_config.getboolean("DEFAULT",
2187
3021
option)
2188
3022
if server_settings["port"]:
2189
3023
server_settings["port"] = server_config.getint("DEFAULT",
2190
3024
"port")
3025
if server_settings["socket"]:
3026
server_settings["socket"] = server_config.getint("DEFAULT",
3027
"socket")
3028
# Later, stdin will, and stdout and stderr might, be dup'ed
3029
# over with an opened os.devnull. But we don't want this to
3030
# happen with a supplied network socket.
3031
if 0 <= server_settings["socket"] <= 2:
3032
server_settings["socket"] = os.dup(server_settings
3033
["socket"])
2191
3034
del server_config
2192
3035
2193
3036
# Override the settings from the config file with command line
2194
3037
# options, if set.
2195
3038
for option in ("interface", "address", "port", "debug",
2196
"priority", "servicename", "configdir",
2197
"use_dbus", "use_ipv6", "debuglevel", "restore",
2198
"statedir"):
3039
"priority", "servicename", "configdir", "use_dbus",
3040
"use_ipv6", "debuglevel", "restore", "statedir",
3041
"socket", "foreground", "zeroconf"):
2199
3042
value = getattr(options, option)
2200
3043
if value is not None:
2201
3044
server_settings[option] = value
2202
3045
del options
2203
3046
# Force all strings to be unicode
2204
3047
for option in server_settings.keys():
2205
if type(server_settings[option]) is str:
2206
server_settings[option] = unicode(server_settings[option])
3048
if isinstance(server_settings[option], bytes):
3049
server_settings[option] = (server_settings[option]
3050
.decode("utf-8"))
3051
# Force all boolean options to be boolean
3052
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3053
"foreground", "zeroconf"):
3054
server_settings[option] = bool(server_settings[option])
3055
# Debug implies foreground
3056
if server_settings["debug"]:
3057
server_settings["foreground"] = True
2207
3058
# Now we have our good server settings in "server_settings"
2208
3059
2209
3060
##################################################################
2210
3061
3062
if (not server_settings["zeroconf"]
3063
and not (server_settings["port"]
3064
or server_settings["socket"] != "")):
3065
parser.error("Needs port or socket to work without Zeroconf")
3066
2211
3067
# For convenience
2212
3068
debug = server_settings["debug"]
2213
3069
debuglevel = server_settings["debuglevel"]
2215
3071
use_ipv6 = server_settings["use_ipv6"]
2216
3072
stored_state_path = os.path.join(server_settings["statedir"],
2217
3073
stored_state_file)
2218
3074
foreground = server_settings["foreground"]
3075
zeroconf = server_settings["zeroconf"]
3076
2219
3077
if debug:
2220
3078
initlogger(debug, logging.DEBUG)
2221
3079
else:
2224
3082
else:
2225
3083
level = getattr(logging, debuglevel.upper())
2226
3084
initlogger(debug, level)
2227
3085
2228
3086
if server_settings["servicename"] != "Mandos":
2229
syslogger.setFormatter(logging.Formatter
2230
('Mandos (%s) [%%(process)d]:'
2231
' %%(levelname)s: %%(message)s'
2232
% server_settings["servicename"]))
2233
3087
syslogger.setFormatter(
3088
logging.Formatter('Mandos ({}) [%(process)d]:'
3089
' %(levelname)s: %(message)s'.format(
3090
server_settings["servicename"])))
3091
2234
3092
# Parse config file with clients
2235
client_config = configparser.SafeConfigParser(Client
2236
.client_defaults)
3093
client_config = configparser.ConfigParser(Client.client_defaults)
2237
3094
client_config.read(os.path.join(server_settings["configdir"],
2238
3095
"clients.conf"))
2239
3096
2240
3097
global mandos_dbus_service
2241
3098
mandos_dbus_service = None
2242
2243
tcp_server = MandosServer((server_settings["address"],
2244
server_settings["port"]),
2245
ClientHandler,
2246
interface=(server_settings["interface"]
2247
or None),
2248
use_ipv6=use_ipv6,
2249
gnutls_priority=
2250
server_settings["priority"],
2251
use_dbus=use_dbus)
2252
if not debug:
2253
pidfilename = "/var/run/mandos.pid"
2254
try:
2255
pidfile = open(pidfilename, "w")
2256
except IOError:
2257
logger.error("Could not open file %r", pidfilename)
2258
2259
try:
2260
uid = pwd.getpwnam("_mandos").pw_uid
2261
gid = pwd.getpwnam("_mandos").pw_gid
2262
except KeyError:
2263
try:
2264
uid = pwd.getpwnam("mandos").pw_uid
2265
gid = pwd.getpwnam("mandos").pw_gid
3099
3100
socketfd = None
3101
if server_settings["socket"] != "":
3102
socketfd = server_settings["socket"]
3103
tcp_server = MandosServer(
3104
(server_settings["address"], server_settings["port"]),
3105
ClientHandler,
3106
interface=(server_settings["interface"] or None),
3107
use_ipv6=use_ipv6,
3108
gnutls_priority=server_settings["priority"],
3109
use_dbus=use_dbus,
3110
socketfd=socketfd)
3111
if not foreground:
3112
pidfilename = "/run/mandos.pid"
3113
if not os.path.isdir("/run/."):
3114
pidfilename = "/var/run/mandos.pid"
3115
pidfile = None
3116
try:
3117
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3118
except IOError as e:
3119
logger.error("Could not open file %r", pidfilename,
3120
exc_info=e)
3121
3122
for name, group in (("_mandos", "_mandos"),
3123
("mandos", "mandos"),
3124
("nobody", "nogroup")):
3125
try:
3126
uid = pwd.getpwnam(name).pw_uid
3127
gid = pwd.getpwnam(group).pw_gid
3128
break
2266
3129
except KeyError:
2267
try:
2268
uid = pwd.getpwnam("nobody").pw_uid
2269
gid = pwd.getpwnam("nobody").pw_gid
2270
except KeyError:
2271
uid = 65534
2272
gid = 65534
3130
continue
3131
else:
3132
uid = 65534
3133
gid = 65534
2273
3134
try:
2274
3135
os.setgid(gid)
2275
3136
os.setuid(uid)
3137
if debug:
3138
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3139
gid))
2276
3140
except OSError as error:
2277
if error[0] != errno.EPERM:
2278
raise error
2279
3141
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3142
.format(uid, gid, os.strerror(error.errno)))
3143
if error.errno != errno.EPERM:
3144
raise
3145
2280
3146
if debug:
2281
3147
# Enable all possible GnuTLS debugging
2282
3148
2283
3149
# "Use a log level over 10 to enable all debugging options."
2284
3150
# - GnuTLS manual
2285
gnutls.library.functions.gnutls_global_set_log_level(11)
2286
2287
@gnutls.library.types.gnutls_log_func
3151
gnutls.global_set_log_level(11)
3152
3153
@gnutls.log_func
2288
3154
def debug_gnutls(level, string):
2289
3155
logger.debug("GnuTLS: %s", string[:-1])
2290
2291
(gnutls.library.functions
2292
.gnutls_global_set_log_function(debug_gnutls))
2293
3156
3157
gnutls.global_set_log_function(debug_gnutls)
3158
2294
3159
# Redirect stdin so all checkers get /dev/null
2295
3160
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2296
3161
os.dup2(null, sys.stdin.fileno())
2297
3162
if null > 2:
2298
3163
os.close(null)
2299
3164
2300
3165
# Need to fork before connecting to D-Bus
2301
if not debug:
3166
if not foreground:
2302
3167
# Close all input and output, do double fork, etc.
2303
3168
daemon()
2304
2305
gobject.threads_init()
2306
3169
3170
if gi.version_info < (3, 10, 2):
3171
# multiprocessing will use threads, so before we use GLib we
3172
# need to inform GLib that threads will be used.
3173
GLib.threads_init()
3174
2307
3175
global main_loop
2308
3176
# From the Avahi example code
2309
3177
DBusGMainLoop(set_as_default=True)
2310
main_loop = gobject.MainLoop()
3178
main_loop = GLib.MainLoop()
2311
3179
bus = dbus.SystemBus()
2312
3180
# End of Avahi example code
2313
3181
if use_dbus:
2314
3182
try:
2315
3183
bus_name = dbus.service.BusName("se.recompile.Mandos",
2316
bus, do_not_queue=True)
2317
old_bus_name = (dbus.service.BusName
2318
("se.bsnet.fukt.Mandos", bus,
2319
do_not_queue=True))
2320
except dbus.exceptions.NameExistsException as e:
2321
logger.error(unicode(e) + ", disabling D-Bus")
3184
bus,
3185
do_not_queue=True)
3186
old_bus_name = dbus.service.BusName(
3187
"se.bsnet.fukt.Mandos", bus,
3188
do_not_queue=True)
3189
except dbus.exceptions.DBusException as e:
3190
logger.error("Disabling D-Bus:", exc_info=e)
2322
3191
use_dbus = False
2323
3192
server_settings["use_dbus"] = False
2324
3193
tcp_server.use_dbus = False
2325
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2326
service = AvahiServiceToSyslog(name =
2327
server_settings["servicename"],
2328
servicetype = "_mandos._tcp",
2329
protocol = protocol, bus = bus)
2330
if server_settings["interface"]:
2331
service.interface = (if_nametoindex
2332
(str(server_settings["interface"])))
2333
3194
if zeroconf:
3195
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3196
service = AvahiServiceToSyslog(
3197
name=server_settings["servicename"],
3198
servicetype="_mandos._tcp",
3199
protocol=protocol,
3200
bus=bus)
3201
if server_settings["interface"]:
3202
service.interface = if_nametoindex(
3203
server_settings["interface"].encode("utf-8"))
3204
2334
3205
global multiprocessing_manager
2335
3206
multiprocessing_manager = multiprocessing.Manager()
2336
3207
2337
3208
client_class = Client
2338
3209
if use_dbus:
2339
client_class = functools.partial(ClientDBusTransitional,
2340
bus = bus)
2341
3210
client_class = functools.partial(ClientDBus, bus=bus)
3211
2342
3212
client_settings = Client.config_parser(client_config)
2343
3213
old_client_settings = {}
2344
3214
clients_data = {}
2345
3215
3216
# This is used to redirect stdout and stderr for checker processes
3217
global wnull
3218
wnull = open(os.devnull, "w") # A writable /dev/null
3219
# Only used if server is running in foreground but not in debug
3220
# mode
3221
if debug or not foreground:
3222
wnull.close()
3223
2346
3224
# Get client data and settings from last running state.
2347
3225
if server_settings["restore"]:
2348
3226
try:
2349
3227
with open(stored_state_path, "rb") as stored_state:
2350
clients_data, old_client_settings = (pickle.load
2351
(stored_state))
3228
if sys.version_info.major == 2:
3229
clients_data, old_client_settings = pickle.load(
3230
stored_state)
3231
else:
3232
bytes_clients_data, bytes_old_client_settings = (
3233
pickle.load(stored_state, encoding="bytes"))
3234
# Fix bytes to strings
3235
# clients_data
3236
# .keys()
3237
clients_data = {(key.decode("utf-8")
3238
if isinstance(key, bytes)
3239
else key): value
3240
for key, value in
3241
bytes_clients_data.items()}
3242
del bytes_clients_data
3243
for key in clients_data:
3244
value = {(k.decode("utf-8")
3245
if isinstance(k, bytes) else k): v
3246
for k, v in
3247
clients_data[key].items()}
3248
clients_data[key] = value
3249
# .client_structure
3250
value["client_structure"] = [
3251
(s.decode("utf-8")
3252
if isinstance(s, bytes)
3253
else s) for s in
3254
value["client_structure"]]
3255
# .name, .host, and .checker_command
3256
for k in ("name", "host", "checker_command"):
3257
if isinstance(value[k], bytes):
3258
value[k] = value[k].decode("utf-8")
3259
if "key_id" not in value:
3260
value["key_id"] = ""
3261
elif "fingerprint" not in value:
3262
value["fingerprint"] = ""
3263
# old_client_settings
3264
# .keys()
3265
old_client_settings = {
3266
(key.decode("utf-8")
3267
if isinstance(key, bytes)
3268
else key): value
3269
for key, value in
3270
bytes_old_client_settings.items()}
3271
del bytes_old_client_settings
3272
# .host and .checker_command
3273
for value in old_client_settings.values():
3274
for attribute in ("host", "checker_command"):
3275
if isinstance(value[attribute], bytes):
3276
value[attribute] = (value[attribute]
3277
.decode("utf-8"))
2352
3278
os.remove(stored_state_path)
2353
3279
except IOError as e:
2354
logger.warning("Could not load persistent state: {0}"
2355
.format(e))
2356
if e.errno != errno.ENOENT:
3280
if e.errno == errno.ENOENT:
3281
logger.warning("Could not load persistent state:"
3282
" {}".format(os.strerror(e.errno)))
3283
else:
3284
logger.critical("Could not load persistent state:",
3285
exc_info=e)
2357
3286
raise
2358
3287
except EOFError as e:
2359
3288
logger.warning("Could not load persistent state: "
2360
"EOFError: {0}".format(e))
2361
3289
"EOFError:",
3290
exc_info=e)
3291
2362
3292
with PGPEngine() as pgp:
2363
for client_name, client in clients_data.iteritems():
3293
for client_name, client in clients_data.items():
3294
# Skip removed clients
3295
if client_name not in client_settings:
3296
continue
3297
2364
3298
# Decide which value to use after restoring saved state.
2365
3299
# We have three different values: Old config file,
2366
3300
# new config file, and saved state.
2371
3305
# For each value in new config, check if it
2372
3306
# differs from the old config value (Except for
2373
3307
# the "secret" attribute)
2374
if (name != "secret" and
2375
value != old_client_settings[client_name]
2376
[name]):
3308
if (name != "secret"
3309
and (value !=
3310
old_client_settings[client_name][name])):
2377
3311
client[name] = value
2378
3312
except KeyError:
2379
3313
pass
2380
3314
2381
3315
# Clients who has passed its expire date can still be
2382
# enabled if its last checker was successful. Clients
3316
# enabled if its last checker was successful. A Client
2383
3317
# whose checker succeeded before we stored its state is
2384
3318
# assumed to have successfully run all checkers during
2385
3319
# downtime.
2387
3321
if datetime.datetime.utcnow() >= client["expires"]:
2388
3322
if not client["last_checked_ok"]:
2389
3323
logger.warning(
2390
"disabling client {0} - Client never "
2391
"performed a successful checker"
2392
.format(client_name))
3324
"disabling client {} - Client never "
3325
"performed a successful checker".format(
3326
client_name))
2393
3327
client["enabled"] = False
2394
3328
elif client["last_checker_status"] != 0:
2395
3329
logger.warning(
2396
"disabling client {0} - Client "
2397
"last checker failed with error code {1}"
2398
.format(client_name,
2399
client["last_checker_status"]))
3330
"disabling client {} - Client last"
3331
" checker failed with error code"
3332
" {}".format(
3333
client_name,
3334
client["last_checker_status"]))
2400
3335
client["enabled"] = False
2401
3336
else:
2402
client["expires"] = (datetime.datetime
2403
.utcnow()
2404
+ client["timeout"])
3337
client["expires"] = (
3338
datetime.datetime.utcnow()
3339
+ client["timeout"])
2405
3340
logger.debug("Last checker succeeded,"
2406
" keeping {0} enabled"
2407
.format(client_name))
3341
" keeping {} enabled".format(
3342
client_name))
2408
3343
try:
2409
client["secret"] = (
2410
pgp.decrypt(client["encrypted_secret"],
2411
client_settings[client_name]
2412
["secret"]))
3344
client["secret"] = pgp.decrypt(
3345
client["encrypted_secret"],
3346
client_settings[client_name]["secret"])
2413
3347
except PGPError:
2414
3348
# If decryption fails, we use secret from new settings
2415
logger.debug("Failed to decrypt {0} old secret"
2416
.format(client_name))
2417
client["secret"] = (
2418
client_settings[client_name]["secret"])
3349
logger.debug("Failed to decrypt {} old secret".format(
3350
client_name))
3351
client["secret"] = (client_settings[client_name]
3352
["secret"])
2419
3353
2420
2421
3354
# Add/remove clients based on new changes made to config
2422
3355
for client_name in (set(old_client_settings)
2423
3356
- set(client_settings)):
2427
3360
clients_data[client_name] = client_settings[client_name]
2428
3361
2429
3362
# Create all client objects
2430
for client_name, client in clients_data.iteritems():
3363
for client_name, client in clients_data.items():
2431
3364
tcp_server.clients[client_name] = client_class(
2432
name = client_name, settings = client)
2433
3365
name=client_name,
3366
settings=client,
3367
server_settings=server_settings)
3368
2434
3369
if not tcp_server.clients:
2435
3370
logger.warning("No clients defined")
2436
2437
if not debug:
2438
try:
2439
with pidfile:
2440
pid = os.getpid()
2441
pidfile.write(str(pid) + "\n".encode("utf-8"))
2442
del pidfile
2443
except IOError:
2444
logger.error("Could not write to file %r with PID %d",
2445
pidfilename, pid)
2446
except NameError:
2447
# "pidfile" was never created
2448
pass
3371
3372
if not foreground:
3373
if pidfile is not None:
3374
pid = os.getpid()
3375
try:
3376
with pidfile:
3377
print(pid, file=pidfile)
3378
except IOError:
3379
logger.error("Could not write to file %r with PID %d",
3380
pidfilename, pid)
3381
del pidfile
2449
3382
del pidfilename
2450
signal.signal(signal.SIGINT, signal.SIG_IGN)
2451
2452
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2453
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2454
3383
3384
for termsig in (signal.SIGHUP, signal.SIGTERM):
3385
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3386
lambda: main_loop.quit() and False)
3387
2455
3388
if use_dbus:
2456
class MandosDBusService(DBusObjectWithProperties):
3389
3390
@alternate_dbus_interfaces(
3391
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3392
class MandosDBusService(DBusObjectWithObjectManager):
2457
3393
"""A D-Bus proxy object"""
3394
2458
3395
def __init__(self):
2459
3396
dbus.service.Object.__init__(self, bus, "/")
3397
2460
3398
_interface = "se.recompile.Mandos"
2461
2462
@dbus_interface_annotations(_interface)
2463
def _foo(self):
2464
return { "org.freedesktop.DBus.Property"
2465
".EmitsChangedSignal":
2466
"false"}
2467
3399
2468
3400
@dbus.service.signal(_interface, signature="o")
2469
3401
def ClientAdded(self, objpath):
2470
3402
"D-Bus signal"
2471
3403
pass
2472
3404
2473
3405
@dbus.service.signal(_interface, signature="ss")
2474
def ClientNotFound(self, fingerprint, address):
3406
def ClientNotFound(self, key_id, address):
2475
3407
"D-Bus signal"
2476
3408
pass
2477
3409
3410
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3411
"true"})
2478
3412
@dbus.service.signal(_interface, signature="os")
2479
3413
def ClientRemoved(self, objpath, name):
2480
3414
"D-Bus signal"
2481
3415
pass
2482
3416
3417
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3418
"true"})
2483
3419
@dbus.service.method(_interface, out_signature="ao")
2484
3420
def GetAllClients(self):
2485
3421
"D-Bus method"
2486
return dbus.Array(c.dbus_object_path
2487
for c in
2488
tcp_server.clients.itervalues())
2489
3422
return dbus.Array(c.dbus_object_path for c in
3423
tcp_server.clients.values())
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2490
3427
@dbus.service.method(_interface,
2491
3428
out_signature="a{oa{sv}}")
2492
3429
def GetAllClientsWithProperties(self):
2493
3430
"D-Bus method"
2494
3431
return dbus.Dictionary(
2495
((c.dbus_object_path, c.GetAll(""))
2496
for c in tcp_server.clients.itervalues()),
3432
{c.dbus_object_path: c.GetAll(
3433
"se.recompile.Mandos.Client")
3434
for c in tcp_server.clients.values()},
2497
3435
signature="oa{sv}")
2498
3436
2499
3437
@dbus.service.method(_interface, in_signature="o")
2500
3438
def RemoveClient(self, object_path):
2501
3439
"D-Bus method"
2502
for c in tcp_server.clients.itervalues():
3440
for c in tcp_server.clients.values():
2503
3441
if c.dbus_object_path == object_path:
2504
3442
del tcp_server.clients[c.name]
2505
3443
c.remove_from_connection()
2506
# Don't signal anything except ClientRemoved
3444
# Don't signal the disabling
2507
3445
c.disable(quiet=True)
2508
# Emit D-Bus signal
2509
self.ClientRemoved(object_path, c.name)
3446
# Emit D-Bus signal for removal
3447
self.client_removed_signal(c)
2510
3448
return
2511
3449
raise KeyError(object_path)
2512
3450
2513
3451
del _interface
2514
2515
class MandosDBusServiceTransitional(MandosDBusService):
2516
__metaclass__ = AlternateDBusNamesMetaclass
2517
mandos_dbus_service = MandosDBusServiceTransitional()
2518
3452
3453
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3454
out_signature="a{oa{sa{sv}}}")
3455
def GetManagedObjects(self):
3456
"""D-Bus method"""
3457
return dbus.Dictionary(
3458
{client.dbus_object_path:
3459
dbus.Dictionary(
3460
{interface: client.GetAll(interface)
3461
for interface in
3462
client._get_all_interface_names()})
3463
for client in tcp_server.clients.values()})
3464
3465
def client_added_signal(self, client):
3466
"""Send the new standard signal and the old signal"""
3467
if use_dbus:
3468
# New standard signal
3469
self.InterfacesAdded(
3470
client.dbus_object_path,
3471
dbus.Dictionary(
3472
{interface: client.GetAll(interface)
3473
for interface in
3474
client._get_all_interface_names()}))
3475
# Old signal
3476
self.ClientAdded(client.dbus_object_path)
3477
3478
def client_removed_signal(self, client):
3479
"""Send the new standard signal and the old signal"""
3480
if use_dbus:
3481
# New standard signal
3482
self.InterfacesRemoved(
3483
client.dbus_object_path,
3484
client._get_all_interface_names())
3485
# Old signal
3486
self.ClientRemoved(client.dbus_object_path,
3487
client.name)
3488
3489
mandos_dbus_service = MandosDBusService()
3490
3491
# Save modules to variables to exempt the modules from being
3492
# unloaded before the function registered with atexit() is run.
3493
mp = multiprocessing
3494
wn = wnull
3495
2519
3496
def cleanup():
2520
3497
"Cleanup function; run on exit"
2521
service.cleanup()
2522
2523
multiprocessing.active_children()
3498
if zeroconf:
3499
service.cleanup()
3500
3501
mp.active_children()
3502
wn.close()
2524
3503
if not (tcp_server.clients or client_settings):
2525
3504
return
2526
3505
2527
3506
# Store client before exiting. Secrets are encrypted with key
2528
3507
# based on what config file has. If config file is
2529
3508
# removed/edited, old secret will thus be unrecovable.
2530
3509
clients = {}
2531
3510
with PGPEngine() as pgp:
2532
for client in tcp_server.clients.itervalues():
3511
for client in tcp_server.clients.values():
2533
3512
key = client_settings[client.name]["secret"]
2534
3513
client.encrypted_secret = pgp.encrypt(client.secret,
2535
3514
key)
2536
3515
client_dict = {}
2537
3516
2538
3517
# A list of attributes that can not be pickled
2539
3518
# + secret.
2540
exclude = set(("bus", "changedstate", "secret",
2541
"checker"))
2542
for name, typ in (inspect.getmembers
2543
(dbus.service.Object)):
3519
exclude = {"bus", "changedstate", "secret",
3520
"checker", "server_settings"}
3521
for name, typ in inspect.getmembers(dbus.service
3522
.Object):
2544
3523
exclude.add(name)
2545
3524
2546
3525
client_dict["encrypted_secret"] = (client
2547
3526
.encrypted_secret)
2548
3527
for attr in client.client_structure:
2549
3528
if attr not in exclude:
2550
3529
client_dict[attr] = getattr(client, attr)
2551
3530
2552
3531
clients[client.name] = client_dict
2553
3532
del client_settings[client.name]["secret"]
2554
3533
2555
3534
try:
2556
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2557
prefix="clients-",
2558
dir=os.path.dirname
2559
(stored_state_path))
2560
with os.fdopen(tempfd, "wb") as stored_state:
2561
pickle.dump((clients, client_settings), stored_state)
3535
with tempfile.NamedTemporaryFile(
3536
mode='wb',
3537
suffix=".pickle",
3538
prefix='clients-',
3539
dir=os.path.dirname(stored_state_path),
3540
delete=False) as stored_state:
3541
pickle.dump((clients, client_settings), stored_state,
3542
protocol=2)
3543
tempname = stored_state.name
2562
3544
os.rename(tempname, stored_state_path)
2563
3545
except (IOError, OSError) as e:
2564
logger.warning("Could not save persistent state: {0}"
2565
.format(e))
2566
3546
if not debug:
2567
3547
try:
2568
3548
os.remove(tempname)
2569
3549
except NameError:
2570
3550
pass
2571
if e.errno not in set((errno.ENOENT, errno.EACCES,
2572
errno.EEXIST)):
2573
raise e
2574
3551
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3552
logger.warning("Could not save persistent state: {}"
3553
.format(os.strerror(e.errno)))
3554
else:
3555
logger.warning("Could not save persistent state:",
3556
exc_info=e)
3557
raise
3558
2575
3559
# Delete all clients, and settings from config
2576
3560
while tcp_server.clients:
2577
3561
name, client = tcp_server.clients.popitem()
2578
3562
if use_dbus:
2579
3563
client.remove_from_connection()
2580
# Don't signal anything except ClientRemoved
3564
# Don't signal the disabling
2581
3565
client.disable(quiet=True)
3566
# Emit D-Bus signal for removal
2582
3567
if use_dbus:
2583
# Emit D-Bus signal
2584
mandos_dbus_service.ClientRemoved(client
2585
.dbus_object_path,
2586
client.name)
3568
mandos_dbus_service.client_removed_signal(client)
2587
3569
client_settings.clear()
2588
3570
2589
3571
atexit.register(cleanup)
2590
2591
for client in tcp_server.clients.itervalues():
3572
3573
for client in tcp_server.clients.values():
2592
3574
if use_dbus:
2593
# Emit D-Bus signal
2594
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3575
# Emit D-Bus signal for adding
3576
mandos_dbus_service.client_added_signal(client)
2595
3577
# Need to initiate checking of clients
2596
3578
if client.enabled:
2597
3579
client.init_checker()
2598
3580
2599
3581
tcp_server.enable()
2600
3582
tcp_server.server_activate()
2601
3583
2602
3584
# Find out what port we got
2603
service.port = tcp_server.socket.getsockname()[1]
3585
if zeroconf:
3586
service.port = tcp_server.socket.getsockname()[1]
2604
3587
if use_ipv6:
2605
3588
logger.info("Now listening on address %r, port %d,"
2606
" flowinfo %d, scope_id %d"
2607
% tcp_server.socket.getsockname())
3589
" flowinfo %d, scope_id %d",
3590
*tcp_server.socket.getsockname())
2608
3591
else: # IPv4
2609
logger.info("Now listening on address %r, port %d"
2610
% tcp_server.socket.getsockname())
2611
2612
#service.interface = tcp_server.socket.getsockname()[3]
2613
3592
logger.info("Now listening on address %r, port %d",
3593
*tcp_server.socket.getsockname())
3594
3595
# service.interface = tcp_server.socket.getsockname()[3]
3596
2614
3597
try:
2615
# From the Avahi example code
2616
try:
2617
service.activate()
2618
except dbus.exceptions.DBusException as error:
2619
logger.critical("DBusException: %s", error)
2620
cleanup()
2621
sys.exit(1)
2622
# End of Avahi example code
2623
2624
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2625
lambda *args, **kwargs:
2626
(tcp_server.handle_request
2627
(*args[2:], **kwargs) or True))
2628
3598
if zeroconf:
3599
# From the Avahi example code
3600
try:
3601
service.activate()
3602
except dbus.exceptions.DBusException as error:
3603
logger.critical("D-Bus Exception", exc_info=error)
3604
cleanup()
3605
sys.exit(1)
3606
# End of Avahi example code
3607
3608
GLib.io_add_watch(
3609
GLib.IOChannel.unix_new(tcp_server.fileno()),
3610
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3611
lambda *args, **kwargs: (tcp_server.handle_request
3612
(*args[2:], **kwargs) or True))
3613
2629
3614
logger.debug("Starting main loop")
2630
3615
main_loop.run()
2631
3616
except AvahiError as error:
2632
logger.critical("AvahiError: %s", error)
3617
logger.critical("Avahi Error", exc_info=error)
2633
3618
cleanup()
2634
3619
sys.exit(1)
2635
3620
except KeyboardInterrupt:
2640
3625
# Must run before the D-Bus bus name gets deregistered
2641
3626
cleanup()
2642
3627
3628
3629
def should_only_run_tests():
3630
parser = argparse.ArgumentParser(add_help=False)
3631
parser.add_argument("--check", action='store_true')
3632
args, unknown_args = parser.parse_known_args()
3633
run_tests = args.check
3634
if run_tests:
3635
# Remove --check argument from sys.argv
3636
sys.argv[1:] = unknown_args
3637
return run_tests
3638
3639
# Add all tests from doctest strings
3640
def load_tests(loader, tests, none):
3641
import doctest
3642
tests.addTests(doctest.DocTestSuite())
3643
return tests
3644
2643
3645
if __name__ == '__main__':
2644
main()
3646
try:
3647
if should_only_run_tests():
3648
# Call using ./mandos --check [--verbose]
3649
unittest.main()
3650
else:
3651
main()
3652
finally:
3653
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0