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- Committer: Teddy Hogeborn
- Date: 2022-04-23 23:25:49 UTC
- Revision ID: teddy@recompile.se-20220423232549-1uul4i3jwhums0ek
Minor text adjustment in mandos(8) manual page
* mandos.xml (DESCRIPTION): Break long line.
(SEE ALSO/RFC 4291): Fix grammatical mistake.
* mandos.xml (DESCRIPTION): Break long line.
(SEE ALSO/RFC 4291): Fix grammatical mistake.
- files added:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2012 Teddy Hogeborn
15
# Copyright © 2008-2012 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2020 Teddy Hogeborn
15
# Copyright © 2008-2020 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
31
32
# Contact the authors at <mandos@recompile.se>.
32
#
33
#
33
34
34
35
from __future__ import (division, absolute_import, print_function,
35
36
unicode_literals)
36
37
37
import SocketServer as socketserver
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
38
47
import socket
39
48
import argparse
40
49
import datetime
41
50
import errno
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
49
55
import sys
50
56
import re
51
57
import os
60
66
import struct
61
67
import fcntl
62
68
import functools
63
import cPickle as pickle
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
64
73
import multiprocessing
65
74
import types
66
75
import binascii
67
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
import shlex
68
83
69
84
import dbus
70
85
import dbus.service
71
import gobject
72
import avahi
86
import gi
87
from gi.repository import GLib
73
88
from dbus.mainloop.glib import DBusGMainLoop
74
89
import ctypes
75
90
import ctypes.util
76
91
import xml.dom.minidom
77
92
import inspect
78
import GnuPGInterface
79
80
try:
93
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
81
122
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
82
123
except AttributeError:
83
124
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
84
127
from IN import SO_BINDTODEVICE
85
128
except ImportError:
86
SO_BINDTODEVICE = None
87
88
version = "1.5.3"
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.14"
89
147
stored_state_file = "clients.pickle"
90
148
91
149
logger = logging.getLogger()
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
95
152
96
153
try:
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
100
156
except (OSError, AttributeError):
157
101
158
def if_nametoindex(interface):
102
159
"Get an interface index the hard way, i.e. using fcntl()"
103
160
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
104
161
with contextlib.closing(socket.socket()) as s:
105
162
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
110
165
return interface_index
111
166
112
167
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
113
184
def initlogger(debug, level=logging.WARNING):
114
185
"""init logger and add loglevel"""
115
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
116
191
syslogger.setFormatter(logging.Formatter
117
('Mandos [%(process)d]: %(levelname)s:'
118
' %(message)s'))
192
("Mandos [%(process)d]: %(levelname)s:"
193
" %(message)s"))
119
194
logger.addHandler(syslogger)
120
195
121
196
if debug:
122
197
console = logging.StreamHandler()
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
124
' [%(process)d]:'
125
' %(levelname)s:'
126
' %(message)s'))
198
console.setFormatter(logging.Formatter("%(asctime)s %(name)s"
199
" [%(process)d]:"
200
" %(levelname)s:"
201
" %(message)s"))
127
202
logger.addHandler(console)
128
203
logger.setLevel(level)
129
204
133
208
pass
134
209
135
210
136
class PGPEngine(object):
211
class PGPEngine:
137
212
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
138
214
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
140
215
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
145
'--quiet',
146
'--no-use-agent'])
147
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ["--batch",
228
"--homedir", self.tempdir,
229
"--force-mdc",
230
"--quiet"]
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
148
235
def __enter__(self):
149
236
return self
150
151
def __exit__ (self, exc_type, exc_value, traceback):
237
238
def __exit__(self, exc_type, exc_value, traceback):
152
239
self._cleanup()
153
240
return False
154
241
155
242
def __del__(self):
156
243
self._cleanup()
157
244
158
245
def _cleanup(self):
159
246
if self.tempdir is not None:
160
247
# Delete contents of tempdir
161
248
for root, dirs, files in os.walk(self.tempdir,
162
topdown = False):
249
topdown=False):
163
250
for filename in files:
164
251
os.remove(os.path.join(root, filename))
165
252
for dirname in dirs:
167
254
# Remove tempdir
168
255
os.rmdir(self.tempdir)
169
256
self.tempdir = None
170
257
171
258
def password_encode(self, password):
172
259
# Passphrase can not be empty and can not contain newlines or
173
260
# NUL bytes. So we prefix it and hex encode it.
174
return b"mandos" + binascii.hexlify(password)
175
261
encoded = b"mandos" + binascii.hexlify(password)
262
if len(encoded) > 2048:
263
# GnuPG can't handle long passwords, so encode differently
264
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
265
.replace(b"\n", b"\\n")
266
.replace(b"\0", b"\\x00"))
267
return encoded
268
176
269
def encrypt(self, data, password):
177
self.gnupg.passphrase = self.password_encode(password)
178
with open(os.devnull) as devnull:
179
try:
180
proc = self.gnupg.run(['--symmetric'],
181
create_fhs=['stdin', 'stdout'],
182
attach_fhs={'stderr': devnull})
183
with contextlib.closing(proc.handles['stdin']) as f:
184
f.write(data)
185
with contextlib.closing(proc.handles['stdout']) as f:
186
ciphertext = f.read()
187
proc.wait()
188
except IOError as e:
189
raise PGPError(e)
190
self.gnupg.passphrase = None
270
passphrase = self.password_encode(password)
271
with tempfile.NamedTemporaryFile(
272
dir=self.tempdir) as passfile:
273
passfile.write(passphrase)
274
passfile.flush()
275
proc = subprocess.Popen([self.gpg, "--symmetric",
276
"--passphrase-file",
277
passfile.name]
278
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
283
if proc.returncode != 0:
284
raise PGPError(err)
191
285
return ciphertext
192
286
193
287
def decrypt(self, data, password):
194
self.gnupg.passphrase = self.password_encode(password)
195
with open(os.devnull) as devnull:
196
try:
197
proc = self.gnupg.run(['--decrypt'],
198
create_fhs=['stdin', 'stdout'],
199
attach_fhs={'stderr': devnull})
200
with contextlib.closing(proc.handles['stdin'] ) as f:
201
f.write(data)
202
with contextlib.closing(proc.handles['stdout']) as f:
203
decrypted_plaintext = f.read()
204
proc.wait()
205
except IOError as e:
206
raise PGPError(e)
207
self.gnupg.passphrase = None
288
passphrase = self.password_encode(password)
289
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
291
passfile.write(passphrase)
292
passfile.flush()
293
proc = subprocess.Popen([self.gpg, "--decrypt",
294
"--passphrase-file",
295
passfile.name]
296
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
301
if proc.returncode != 0:
302
raise PGPError(err)
208
303
return decrypted_plaintext
209
304
210
305
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
211
331
212
332
class AvahiError(Exception):
213
333
def __init__(self, value, *args, **kwargs):
214
334
self.value = value
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
218
338
219
339
class AvahiServiceError(AvahiError):
220
340
pass
221
341
342
222
343
class AvahiGroupError(AvahiError):
223
344
pass
224
345
225
346
226
class AvahiService(object):
347
class AvahiService:
227
348
"""An Avahi (Zeroconf) service.
228
349
229
350
Attributes:
230
351
interface: integer; avahi.IF_UNSPEC or an interface index.
231
352
Used to optionally bind to the specified interface.
232
name: string; Example: 'Mandos'
233
type: string; Example: '_mandos._tcp'.
234
See <http://www.dns-sd.org/ServiceTypes.html>
353
name: string; Example: "Mandos"
354
type: string; Example: "_mandos._tcp".
355
See <https://www.iana.org/assignments/service-names-port-numbers>
235
356
port: integer; what port to announce
236
357
TXT: list of strings; TXT record for the service
237
358
domain: string; Domain to publish on, default to .local if empty.
243
364
server: D-Bus Server
244
365
bus: dbus.SystemBus()
245
366
"""
246
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
247
servicetype = None, port = None, TXT = None,
248
domain = "", host = "", max_renames = 32768,
249
protocol = avahi.PROTO_UNSPEC, bus = None):
367
368
def __init__(self,
369
interface=avahi.IF_UNSPEC,
370
name=None,
371
servicetype=None,
372
port=None,
373
TXT=None,
374
domain="",
375
host="",
376
max_renames=32768,
377
protocol=avahi.PROTO_UNSPEC,
378
bus=None):
250
379
self.interface = interface
251
380
self.name = name
252
381
self.type = servicetype
261
390
self.server = None
262
391
self.bus = bus
263
392
self.entry_group_state_changed_match = None
264
def rename(self):
393
394
def rename(self, remove=True):
265
395
"""Derived from the Avahi example code"""
266
396
if self.rename_count >= self.max_renames:
267
397
logger.critical("No suitable Zeroconf service name found"
268
398
" after %i retries, exiting.",
269
399
self.rename_count)
270
400
raise AvahiServiceError("Too many renames")
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
273
404
logger.info("Changing Zeroconf service name to %r ...",
274
405
self.name)
275
self.remove()
406
if remove:
407
self.remove()
276
408
try:
277
409
self.add()
278
410
except dbus.exceptions.DBusException as error:
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
411
if (error.get_dbus_name()
412
== "org.freedesktop.Avahi.CollisionError"):
413
logger.info("Local Zeroconf service name collision.")
414
return self.rename(remove=False)
415
else:
416
logger.critical("D-Bus Exception", exc_info=error)
417
self.cleanup()
418
os._exit(1)
419
283
420
def remove(self):
284
421
"""Derived from the Avahi example code"""
285
422
if self.entry_group_state_changed_match is not None:
287
424
self.entry_group_state_changed_match = None
288
425
if self.group is not None:
289
426
self.group.Reset()
427
290
428
def add(self):
291
429
"""Derived from the Avahi example code"""
292
430
self.remove()
297
435
avahi.DBUS_INTERFACE_ENTRY_GROUP)
298
436
self.entry_group_state_changed_match = (
299
437
self.group.connect_to_signal(
300
'StateChanged', self.entry_group_state_changed))
438
"StateChanged", self.entry_group_state_changed))
301
439
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
302
440
self.name, self.type)
303
441
self.group.AddService(
309
447
dbus.UInt16(self.port),
310
448
avahi.string_array_to_txt_array(self.TXT))
311
449
self.group.Commit()
450
312
451
def entry_group_state_changed(self, state, error):
313
452
"""Derived from the Avahi example code"""
314
453
logger.debug("Avahi entry group state change: %i", state)
315
454
316
455
if state == avahi.ENTRY_GROUP_ESTABLISHED:
317
456
logger.debug("Zeroconf service established.")
318
457
elif state == avahi.ENTRY_GROUP_COLLISION:
320
459
self.rename()
321
460
elif state == avahi.ENTRY_GROUP_FAILURE:
322
461
logger.critical("Avahi: Error in group state changed %s",
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
326
465
def cleanup(self):
327
466
"""Derived from the Avahi example code"""
328
467
if self.group is not None:
333
472
pass
334
473
self.group = None
335
474
self.remove()
475
336
476
def server_state_changed(self, state, error=None):
337
477
"""Derived from the Avahi example code"""
338
478
logger.debug("Avahi server state change: %i", state)
339
bad_states = { avahi.SERVER_INVALID:
340
"Zeroconf server invalid",
341
avahi.SERVER_REGISTERING: None,
342
avahi.SERVER_COLLISION:
343
"Zeroconf server name collision",
344
avahi.SERVER_FAILURE:
345
"Zeroconf server failure" }
479
bad_states = {
480
avahi.SERVER_INVALID: "Zeroconf server invalid",
481
avahi.SERVER_REGISTERING: None,
482
avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
avahi.SERVER_FAILURE: "Zeroconf server failure",
484
}
346
485
if state in bad_states:
347
486
if bad_states[state] is not None:
348
487
if error is None:
351
490
logger.error(bad_states[state] + ": %r", error)
352
491
self.cleanup()
353
492
elif state == avahi.SERVER_RUNNING:
354
self.add()
493
try:
494
self.add()
495
except dbus.exceptions.DBusException as error:
496
if (error.get_dbus_name()
497
== "org.freedesktop.Avahi.CollisionError"):
498
logger.info("Local Zeroconf service name"
499
" collision.")
500
return self.rename(remove=False)
501
else:
502
logger.critical("D-Bus Exception", exc_info=error)
503
self.cleanup()
504
os._exit(1)
355
505
else:
356
506
if error is None:
357
507
logger.debug("Unknown state: %r", state)
358
508
else:
359
509
logger.debug("Unknown state: %r: %r", state, error)
510
360
511
def activate(self):
361
512
"""Derived from the Avahi example code"""
362
513
if self.server is None:
366
517
follow_name_owner_changes=True),
367
518
avahi.DBUS_INTERFACE_SERVER)
368
519
self.server.connect_to_signal("StateChanged",
369
self.server_state_changed)
520
self.server_state_changed)
370
521
self.server_state_changed(self.server.GetState())
371
522
523
372
524
class AvahiServiceToSyslog(AvahiService):
373
def rename(self):
525
def rename(self, *args, **kwargs):
374
526
"""Add the new name to the syslog messages"""
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
379
% self.name))
527
ret = super(AvahiServiceToSyslog, self).rename(*args,
528
**kwargs)
529
syslogger.setFormatter(logging.Formatter(
530
"Mandos ({}) [%(process)d]: %(levelname)s: %(message)s"
531
.format(self.name)))
380
532
return ret
381
533
382
def timedelta_to_milliseconds(td):
383
"Convert a datetime.timedelta() to milliseconds"
384
return ((td.days * 24 * 60 * 60 * 1000)
385
+ (td.seconds * 1000)
386
+ (td.microseconds // 1000))
387
388
class Client(object):
534
535
# Pretend that we have a GnuTLS module
536
class gnutls:
537
"""This isn't so much a class as it is a module-like namespace."""
538
539
library = ctypes.util.find_library("gnutls")
540
if library is None:
541
library = ctypes.util.find_library("gnutls-deb0")
542
_library = ctypes.cdll.LoadLibrary(library)
543
del library
544
545
# Unless otherwise indicated, the constants and types below are
546
# all from the gnutls/gnutls.h C header file.
547
548
# Constants
549
E_SUCCESS = 0
550
E_INTERRUPTED = -52
551
E_AGAIN = -28
552
CRT_OPENPGP = 2
553
CRT_RAWPK = 3
554
CLIENT = 2
555
SHUT_RDWR = 0
556
CRD_CERTIFICATE = 1
557
E_NO_CERTIFICATE_FOUND = -49
558
X509_FMT_DER = 0
559
NO_TICKETS = 1<<10
560
ENABLE_RAWPK = 1<<18
561
CTYPE_PEERS = 3
562
KEYID_USE_SHA256 = 1 # gnutls/x509.h
563
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
564
565
# Types
566
class _session_int(ctypes.Structure):
567
_fields_ = []
568
session_t = ctypes.POINTER(_session_int)
569
570
class certificate_credentials_st(ctypes.Structure):
571
_fields_ = []
572
certificate_credentials_t = ctypes.POINTER(
573
certificate_credentials_st)
574
certificate_type_t = ctypes.c_int
575
576
class datum_t(ctypes.Structure):
577
_fields_ = [("data", ctypes.POINTER(ctypes.c_ubyte)),
578
("size", ctypes.c_uint)]
579
580
class _openpgp_crt_int(ctypes.Structure):
581
_fields_ = []
582
openpgp_crt_t = ctypes.POINTER(_openpgp_crt_int)
583
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
584
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
585
credentials_type_t = ctypes.c_int
586
transport_ptr_t = ctypes.c_void_p
587
close_request_t = ctypes.c_int
588
589
# Exceptions
590
class Error(Exception):
591
def __init__(self, message=None, code=None, args=()):
592
# Default usage is by a message string, but if a return
593
# code is passed, convert it to a string with
594
# gnutls.strerror()
595
self.code = code
596
if message is None and code is not None:
597
message = gnutls.strerror(code).decode(
598
"utf-8", errors="replace")
599
return super(gnutls.Error, self).__init__(
600
message, *args)
601
602
class CertificateSecurityError(Error):
603
pass
604
605
class PointerTo:
606
def __init__(self, cls):
607
self.cls = cls
608
609
def from_param(self, obj):
610
if not isinstance(obj, self.cls):
611
raise TypeError("Not of type {}: {!r}"
612
.format(self.cls.__name__, obj))
613
return ctypes.byref(obj.from_param(obj))
614
615
class CastToVoidPointer:
616
def __init__(self, cls):
617
self.cls = cls
618
619
def from_param(self, obj):
620
if not isinstance(obj, self.cls):
621
raise TypeError("Not of type {}: {!r}"
622
.format(self.cls.__name__, obj))
623
return ctypes.cast(obj.from_param(obj), ctypes.c_void_p)
624
625
class With_from_param:
626
@classmethod
627
def from_param(cls, obj):
628
return obj._as_parameter_
629
630
# Classes
631
class Credentials(With_from_param):
632
def __init__(self):
633
self._as_parameter_ = gnutls.certificate_credentials_t()
634
gnutls.certificate_allocate_credentials(self)
635
self.type = gnutls.CRD_CERTIFICATE
636
637
def __del__(self):
638
gnutls.certificate_free_credentials(self)
639
640
class ClientSession(With_from_param):
641
def __init__(self, socket, credentials=None):
642
self._as_parameter_ = gnutls.session_t()
643
gnutls_flags = gnutls.CLIENT
644
if gnutls.check_version(b"3.5.6"):
645
gnutls_flags |= gnutls.NO_TICKETS
646
if gnutls.has_rawpk:
647
gnutls_flags |= gnutls.ENABLE_RAWPK
648
gnutls.init(self, gnutls_flags)
649
del gnutls_flags
650
gnutls.set_default_priority(self)
651
gnutls.transport_set_ptr(self, socket.fileno())
652
gnutls.handshake_set_private_extensions(self, True)
653
self.socket = socket
654
if credentials is None:
655
credentials = gnutls.Credentials()
656
gnutls.credentials_set(self, credentials.type,
657
credentials)
658
self.credentials = credentials
659
660
def __del__(self):
661
gnutls.deinit(self)
662
663
def handshake(self):
664
return gnutls.handshake(self)
665
666
def send(self, data):
667
data = bytes(data)
668
data_len = len(data)
669
while data_len > 0:
670
data_len -= gnutls.record_send(self, data[-data_len:],
671
data_len)
672
673
def bye(self):
674
return gnutls.bye(self, gnutls.SHUT_RDWR)
675
676
# Error handling functions
677
def _error_code(result):
678
"""A function to raise exceptions on errors, suitable
679
for the "restype" attribute on ctypes functions"""
680
if result >= gnutls.E_SUCCESS:
681
return result
682
if result == gnutls.E_NO_CERTIFICATE_FOUND:
683
raise gnutls.CertificateSecurityError(code=result)
684
raise gnutls.Error(code=result)
685
686
def _retry_on_error(result, func, arguments,
687
_error_code=_error_code):
688
"""A function to retry on some errors, suitable
689
for the "errcheck" attribute on ctypes functions"""
690
while result < gnutls.E_SUCCESS:
691
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
692
return _error_code(result)
693
result = func(*arguments)
694
return result
695
696
# Unless otherwise indicated, the function declarations below are
697
# all from the gnutls/gnutls.h C header file.
698
699
# Functions
700
priority_set_direct = _library.gnutls_priority_set_direct
701
priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,
702
ctypes.POINTER(ctypes.c_char_p)]
703
priority_set_direct.restype = _error_code
704
705
init = _library.gnutls_init
706
init.argtypes = [PointerTo(ClientSession), ctypes.c_int]
707
init.restype = _error_code
708
709
set_default_priority = _library.gnutls_set_default_priority
710
set_default_priority.argtypes = [ClientSession]
711
set_default_priority.restype = _error_code
712
713
record_send = _library.gnutls_record_send
714
record_send.argtypes = [ClientSession, ctypes.c_void_p,
715
ctypes.c_size_t]
716
record_send.restype = ctypes.c_ssize_t
717
record_send.errcheck = _retry_on_error
718
719
certificate_allocate_credentials = (
720
_library.gnutls_certificate_allocate_credentials)
721
certificate_allocate_credentials.argtypes = [
722
PointerTo(Credentials)]
723
certificate_allocate_credentials.restype = _error_code
724
725
certificate_free_credentials = (
726
_library.gnutls_certificate_free_credentials)
727
certificate_free_credentials.argtypes = [Credentials]
728
certificate_free_credentials.restype = None
729
730
handshake_set_private_extensions = (
731
_library.gnutls_handshake_set_private_extensions)
732
handshake_set_private_extensions.argtypes = [ClientSession,
733
ctypes.c_int]
734
handshake_set_private_extensions.restype = None
735
736
credentials_set = _library.gnutls_credentials_set
737
credentials_set.argtypes = [ClientSession, credentials_type_t,
738
CastToVoidPointer(Credentials)]
739
credentials_set.restype = _error_code
740
741
strerror = _library.gnutls_strerror
742
strerror.argtypes = [ctypes.c_int]
743
strerror.restype = ctypes.c_char_p
744
745
certificate_type_get = _library.gnutls_certificate_type_get
746
certificate_type_get.argtypes = [ClientSession]
747
certificate_type_get.restype = _error_code
748
749
certificate_get_peers = _library.gnutls_certificate_get_peers
750
certificate_get_peers.argtypes = [ClientSession,
751
ctypes.POINTER(ctypes.c_uint)]
752
certificate_get_peers.restype = ctypes.POINTER(datum_t)
753
754
global_set_log_level = _library.gnutls_global_set_log_level
755
global_set_log_level.argtypes = [ctypes.c_int]
756
global_set_log_level.restype = None
757
758
global_set_log_function = _library.gnutls_global_set_log_function
759
global_set_log_function.argtypes = [log_func]
760
global_set_log_function.restype = None
761
762
deinit = _library.gnutls_deinit
763
deinit.argtypes = [ClientSession]
764
deinit.restype = None
765
766
handshake = _library.gnutls_handshake
767
handshake.argtypes = [ClientSession]
768
handshake.restype = ctypes.c_int
769
handshake.errcheck = _retry_on_error
770
771
transport_set_ptr = _library.gnutls_transport_set_ptr
772
transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]
773
transport_set_ptr.restype = None
774
775
bye = _library.gnutls_bye
776
bye.argtypes = [ClientSession, close_request_t]
777
bye.restype = ctypes.c_int
778
bye.errcheck = _retry_on_error
779
780
check_version = _library.gnutls_check_version
781
check_version.argtypes = [ctypes.c_char_p]
782
check_version.restype = ctypes.c_char_p
783
784
_need_version = b"3.3.0"
785
if check_version(_need_version) is None:
786
raise self.Error("Needs GnuTLS {} or later"
787
.format(_need_version))
788
789
_tls_rawpk_version = b"3.6.6"
790
has_rawpk = bool(check_version(_tls_rawpk_version))
791
792
if has_rawpk:
793
# Types
794
class pubkey_st(ctypes.Structure):
795
_fields = []
796
pubkey_t = ctypes.POINTER(pubkey_st)
797
798
x509_crt_fmt_t = ctypes.c_int
799
800
# All the function declarations below are from
801
# gnutls/abstract.h
802
pubkey_init = _library.gnutls_pubkey_init
803
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
804
pubkey_init.restype = _error_code
805
806
pubkey_import = _library.gnutls_pubkey_import
807
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
808
x509_crt_fmt_t]
809
pubkey_import.restype = _error_code
810
811
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
812
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
813
ctypes.POINTER(ctypes.c_ubyte),
814
ctypes.POINTER(ctypes.c_size_t)]
815
pubkey_get_key_id.restype = _error_code
816
817
pubkey_deinit = _library.gnutls_pubkey_deinit
818
pubkey_deinit.argtypes = [pubkey_t]
819
pubkey_deinit.restype = None
820
else:
821
# All the function declarations below are from
822
# gnutls/openpgp.h
823
824
openpgp_crt_init = _library.gnutls_openpgp_crt_init
825
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
826
openpgp_crt_init.restype = _error_code
827
828
openpgp_crt_import = _library.gnutls_openpgp_crt_import
829
openpgp_crt_import.argtypes = [openpgp_crt_t,
830
ctypes.POINTER(datum_t),
831
openpgp_crt_fmt_t]
832
openpgp_crt_import.restype = _error_code
833
834
openpgp_crt_verify_self = \
835
_library.gnutls_openpgp_crt_verify_self
836
openpgp_crt_verify_self.argtypes = [
837
openpgp_crt_t,
838
ctypes.c_uint,
839
ctypes.POINTER(ctypes.c_uint),
840
]
841
openpgp_crt_verify_self.restype = _error_code
842
843
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
844
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
845
openpgp_crt_deinit.restype = None
846
847
openpgp_crt_get_fingerprint = (
848
_library.gnutls_openpgp_crt_get_fingerprint)
849
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
850
ctypes.c_void_p,
851
ctypes.POINTER(
852
ctypes.c_size_t)]
853
openpgp_crt_get_fingerprint.restype = _error_code
854
855
if check_version(b"3.6.4"):
856
certificate_type_get2 = _library.gnutls_certificate_type_get2
857
certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]
858
certificate_type_get2.restype = _error_code
859
860
# Remove non-public functions
861
del _error_code, _retry_on_error
862
863
864
def call_pipe(connection, # : multiprocessing.Connection
865
func, *args, **kwargs):
866
"""This function is meant to be called by multiprocessing.Process
867
868
This function runs func(*args, **kwargs), and writes the resulting
869
return value on the provided multiprocessing.Connection.
870
"""
871
connection.send(func(*args, **kwargs))
872
connection.close()
873
874
875
class Client:
389
876
"""A representation of a client host served by this server.
390
877
391
878
Attributes:
392
approved: bool(); 'None' if not yet approved/disapproved
879
approved: bool(); None if not yet approved/disapproved
393
880
approval_delay: datetime.timedelta(); Time to wait for approval
394
881
approval_duration: datetime.timedelta(); Duration of one approval
395
checker: subprocess.Popen(); a running checker process used
396
to see if the client lives.
397
'None' if no process is running.
398
checker_callback_tag: a gobject event source tag, or None
882
checker: multiprocessing.Process(); a running checker process used
883
to see if the client lives. None if no process is
884
running.
885
checker_callback_tag: a GLib event source tag, or None
399
886
checker_command: string; External command which is run to check
400
887
if client lives. %() expansions are done at
401
888
runtime with vars(self) as dict, so that for
402
889
instance %(name)s can be used in the command.
403
checker_initiator_tag: a gobject event source tag, or None
890
checker_initiator_tag: a GLib event source tag, or None
404
891
created: datetime.datetime(); (UTC) object creation
405
892
client_structure: Object describing what attributes a client has
406
893
and is used for storing the client at exit
407
894
current_checker_command: string; current running checker_command
408
disable_initiator_tag: a gobject event source tag, or None
895
disable_initiator_tag: a GLib event source tag, or None
409
896
enabled: bool()
410
897
fingerprint: string (40 or 32 hexadecimal digits); used to
411
uniquely identify the client
898
uniquely identify an OpenPGP client
899
key_id: string (64 hexadecimal digits); used to uniquely identify
900
a client using raw public keys
412
901
host: string; available for use by the checker command
413
902
interval: datetime.timedelta(); How often to start a new checker
414
903
last_approval_request: datetime.datetime(); (UTC) or None
416
905
last_checker_status: integer between 0 and 255 reflecting exit
417
906
status of last checker. -1 reflects crashed
418
907
checker, -2 means no checker completed yet.
908
last_checker_signal: The signal which killed the last checker, if
909
last_checker_status is -1
419
910
last_enabled: datetime.datetime(); (UTC) or None
420
911
name: string; from the config file, used in log messages and
421
912
D-Bus identifiers
426
917
runtime_expansions: Allowed attributes for runtime expansion.
427
918
expires: datetime.datetime(); time (UTC) when a client will be
428
919
disabled, or None
920
server_settings: The server_settings dict from main()
429
921
"""
430
922
431
923
runtime_expansions = ("approval_delay", "approval_duration",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
924
"created", "enabled", "expires", "key_id",
925
"fingerprint", "host", "interval",
926
"last_approval_request", "last_checked_ok",
434
927
"last_enabled", "name", "timeout")
435
client_defaults = { "timeout": "5m",
436
"extended_timeout": "15m",
437
"interval": "2m",
438
"checker": "fping -q -- %%(host)s",
439
"host": "",
440
"approval_delay": "0s",
441
"approval_duration": "1s",
442
"approved_by_default": "True",
443
"enabled": "True",
444
}
445
446
def timeout_milliseconds(self):
447
"Return the 'timeout' attribute in milliseconds"
448
return timedelta_to_milliseconds(self.timeout)
449
450
def extended_timeout_milliseconds(self):
451
"Return the 'extended_timeout' attribute in milliseconds"
452
return timedelta_to_milliseconds(self.extended_timeout)
453
454
def interval_milliseconds(self):
455
"Return the 'interval' attribute in milliseconds"
456
return timedelta_to_milliseconds(self.interval)
457
458
def approval_delay_milliseconds(self):
459
return timedelta_to_milliseconds(self.approval_delay)
928
client_defaults = {
929
"timeout": "PT5M",
930
"extended_timeout": "PT15M",
931
"interval": "PT2M",
932
"checker": "fping -q -- %%(host)s",
933
"host": "",
934
"approval_delay": "PT0S",
935
"approval_duration": "PT1S",
936
"approved_by_default": "True",
937
"enabled": "True",
938
}
460
939
461
940
@staticmethod
462
941
def config_parser(config):
470
949
for client_name in config.sections():
471
950
section = dict(config.items(client_name))
472
951
client = settings[client_name] = {}
473
952
474
953
client["host"] = section["host"]
475
954
# Reformat values from string types to Python types
476
955
client["approved_by_default"] = config.getboolean(
477
956
client_name, "approved_by_default")
478
957
client["enabled"] = config.getboolean(client_name,
479
958
"enabled")
480
959
960
# Uppercase and remove spaces from key_id and fingerprint
961
# for later comparison purposes with return value from the
962
# key_id() and fingerprint() functions
963
client["key_id"] = (section.get("key_id", "").upper()
964
.replace(" ", ""))
481
965
client["fingerprint"] = (section["fingerprint"].upper()
482
966
.replace(" ", ""))
483
967
if "secret" in section:
484
client["secret"] = section["secret"].decode("base64")
968
client["secret"] = codecs.decode(section["secret"]
969
.encode("utf-8"),
970
"base64")
485
971
elif "secfile" in section:
486
972
with open(os.path.expanduser(os.path.expandvars
487
973
(section["secfile"])),
488
974
"rb") as secfile:
489
975
client["secret"] = secfile.read()
490
976
else:
491
raise TypeError("No secret or secfile for section %s"
492
% section)
977
raise TypeError("No secret or secfile for section {}"
978
.format(section))
493
979
client["timeout"] = string_to_delta(section["timeout"])
494
980
client["extended_timeout"] = string_to_delta(
495
981
section["extended_timeout"])
502
988
client["last_approval_request"] = None
503
989
client["last_checked_ok"] = None
504
990
client["last_checker_status"] = -2
505
991
506
992
return settings
507
508
509
def __init__(self, settings, name = None):
510
"""Note: the 'checker' key in 'config' sets the
511
'checker_command' attribute and *not* the 'checker'
512
attribute."""
993
994
def __init__(self, settings, name=None, server_settings=None):
513
995
self.name = name
996
if server_settings is None:
997
server_settings = {}
998
self.server_settings = server_settings
514
999
# adding all client settings
515
for setting, value in settings.iteritems():
1000
for setting, value in settings.items():
516
1001
setattr(self, setting, value)
517
1002
518
1003
if self.enabled:
519
1004
if not hasattr(self, "last_enabled"):
520
1005
self.last_enabled = datetime.datetime.utcnow()
524
1009
else:
525
1010
self.last_enabled = None
526
1011
self.expires = None
527
1012
528
1013
logger.debug("Creating client %r", self.name)
529
# Uppercase and remove spaces from fingerprint for later
530
# comparison purposes with return value from the fingerprint()
531
# function
1014
logger.debug(" Key ID: %s", self.key_id)
532
1015
logger.debug(" Fingerprint: %s", self.fingerprint)
533
1016
self.created = settings.get("created",
534
1017
datetime.datetime.utcnow())
541
1024
self.current_checker_command = None
542
1025
self.approved = None
543
1026
self.approvals_pending = 0
544
self.changedstate = (multiprocessing_manager
545
.Condition(multiprocessing_manager
546
.Lock()))
547
self.client_structure = [attr for attr in
548
self.__dict__.iterkeys()
1027
self.changedstate = multiprocessing_manager.Condition(
1028
multiprocessing_manager.Lock())
1029
self.client_structure = [attr
1030
for attr in self.__dict__.keys()
549
1031
if not attr.startswith("_")]
550
1032
self.client_structure.append("client_structure")
551
552
for name, t in inspect.getmembers(type(self),
553
lambda obj:
554
isinstance(obj,
555
property)):
1033
1034
for name, t in inspect.getmembers(
1035
type(self), lambda obj: isinstance(obj, property)):
556
1036
if not name.startswith("_"):
557
1037
self.client_structure.append(name)
558
1038
559
1039
# Send notice to process children that client state has changed
560
1040
def send_changedstate(self):
561
1041
with self.changedstate:
562
1042
self.changedstate.notify_all()
563
1043
564
1044
def enable(self):
565
1045
"""Start this client's checker and timeout hooks"""
566
1046
if getattr(self, "enabled", False):
567
1047
# Already enabled
568
1048
return
569
self.send_changedstate()
570
1049
self.expires = datetime.datetime.utcnow() + self.timeout
571
1050
self.enabled = True
572
1051
self.last_enabled = datetime.datetime.utcnow()
573
1052
self.init_checker()
574
1053
self.send_changedstate()
1054
575
1055
def disable(self, quiet=True):
576
1056
"""Disable this client."""
577
1057
if not getattr(self, "enabled", False):
578
1058
return False
579
1059
if not quiet:
580
self.send_changedstate()
581
if not quiet:
582
1060
logger.info("Disabling client %s", self.name)
583
if getattr(self, "disable_initiator_tag", False):
584
gobject.source_remove(self.disable_initiator_tag)
1061
if getattr(self, "disable_initiator_tag", None) is not None:
1062
GLib.source_remove(self.disable_initiator_tag)
585
1063
self.disable_initiator_tag = None
586
1064
self.expires = None
587
if getattr(self, "checker_initiator_tag", False):
588
gobject.source_remove(self.checker_initiator_tag)
1065
if getattr(self, "checker_initiator_tag", None) is not None:
1066
GLib.source_remove(self.checker_initiator_tag)
589
1067
self.checker_initiator_tag = None
590
1068
self.stop_checker()
591
1069
self.enabled = False
592
# Do not run this again if called by a gobject.timeout_add
1070
if not quiet:
1071
self.send_changedstate()
1072
# Do not run this again if called by a GLib.timeout_add
593
1073
return False
594
1074
595
1075
def __del__(self):
596
1076
self.disable()
597
1077
598
1078
def init_checker(self):
599
1079
# Schedule a new checker to be started an 'interval' from now,
600
1080
# and every interval from then on.
601
self.checker_initiator_tag = (gobject.timeout_add
602
(self.interval_milliseconds(),
603
self.start_checker))
1081
if self.checker_initiator_tag is not None:
1082
GLib.source_remove(self.checker_initiator_tag)
1083
self.checker_initiator_tag = GLib.timeout_add(
1084
random.randrange(int(self.interval.total_seconds() * 1000
1085
+ 1)),
1086
self.start_checker)
604
1087
# Schedule a disable() when 'timeout' has passed
605
self.disable_initiator_tag = (gobject.timeout_add
606
(self.timeout_milliseconds(),
607
self.disable))
1088
if self.disable_initiator_tag is not None:
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(self.timeout.total_seconds() * 1000), self.disable)
608
1092
# Also start a new checker *right now*.
609
1093
self.start_checker()
610
611
def checker_callback(self, pid, condition, command):
1094
1095
def checker_callback(self, source, condition, connection,
1096
command):
612
1097
"""The checker has completed, so take appropriate actions."""
1098
# Read return code from connection (see call_pipe)
1099
returncode = connection.recv()
1100
connection.close()
1101
if self.checker is not None:
1102
self.checker.join()
613
1103
self.checker_callback_tag = None
614
1104
self.checker = None
615
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
1105
1106
if returncode >= 0:
1107
self.last_checker_status = returncode
1108
self.last_checker_signal = None
617
1109
if self.last_checker_status == 0:
618
1110
logger.info("Checker for %(name)s succeeded",
619
1111
vars(self))
620
1112
self.checked_ok()
621
1113
else:
622
logger.info("Checker for %(name)s failed",
623
vars(self))
1114
logger.info("Checker for %(name)s failed", vars(self))
624
1115
else:
625
1116
self.last_checker_status = -1
1117
self.last_checker_signal = -returncode
626
1118
logger.warning("Checker for %(name)s crashed?",
627
1119
vars(self))
628
1120
return False
1121
629
1122
def checked_ok(self):
630
1123
"""Assert that the client has been seen, alive and well."""
631
1124
self.last_checked_ok = datetime.datetime.utcnow()
632
1125
self.last_checker_status = 0
1126
self.last_checker_signal = None
633
1127
self.bump_timeout()
634
1128
635
1129
def bump_timeout(self, timeout=None):
636
1130
"""Bump up the timeout for this client."""
637
1131
if timeout is None:
638
1132
timeout = self.timeout
639
1133
if self.disable_initiator_tag is not None:
640
gobject.source_remove(self.disable_initiator_tag)
1134
GLib.source_remove(self.disable_initiator_tag)
1135
self.disable_initiator_tag = None
641
1136
if getattr(self, "enabled", False):
642
self.disable_initiator_tag = (gobject.timeout_add
643
(timedelta_to_milliseconds
644
(timeout), self.disable))
1137
self.disable_initiator_tag = GLib.timeout_add(
1138
int(timeout.total_seconds() * 1000), self.disable)
645
1139
self.expires = datetime.datetime.utcnow() + timeout
646
1140
647
1141
def need_approval(self):
648
1142
self.last_approval_request = datetime.datetime.utcnow()
649
1143
650
1144
def start_checker(self):
651
1145
"""Start a new checker subprocess if one is not running.
652
1146
653
1147
If a checker already exists, leave it running and do
654
1148
nothing."""
655
1149
# The reason for not killing a running checker is that if we
656
# did that, then if a checker (for some reason) started
657
# running slowly and taking more than 'interval' time, the
658
# client would inevitably timeout, since no checker would get
659
# a chance to run to completion. If we instead leave running
1150
# did that, and if a checker (for some reason) started running
1151
# slowly and taking more than 'interval' time, then the client
1152
# would inevitably timeout, since no checker would get a
1153
# chance to run to completion. If we instead leave running
660
1154
# checkers alone, the checker would have to take more time
661
1155
# than 'timeout' for the client to be disabled, which is as it
662
1156
# should be.
663
664
# If a checker exists, make sure it is not a zombie
665
try:
666
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
667
except (AttributeError, OSError) as error:
668
if (isinstance(error, OSError)
669
and error.errno != errno.ECHILD):
670
raise error
671
else:
672
if pid:
673
logger.warning("Checker was a zombie")
674
gobject.source_remove(self.checker_callback_tag)
675
self.checker_callback(pid, status,
676
self.current_checker_command)
1157
1158
if self.checker is not None and not self.checker.is_alive():
1159
logger.warning("Checker was not alive; joining")
1160
self.checker.join()
1161
self.checker = None
677
1162
# Start a new checker if needed
678
1163
if self.checker is None:
1164
# Escape attributes for the shell
1165
escaped_attrs = {
1166
attr: shlex.quote(str(getattr(self, attr)))
1167
for attr in self.runtime_expansions}
679
1168
try:
680
# In case checker_command has exactly one % operator
681
command = self.checker_command % self.host
682
except TypeError:
683
# Escape attributes for the shell
684
escaped_attrs = dict(
685
(attr,
686
re.escape(unicode(str(getattr(self, attr, "")),
687
errors=
688
'replace')))
689
for attr in
690
self.runtime_expansions)
691
692
try:
693
command = self.checker_command % escaped_attrs
694
except TypeError as error:
695
logger.error('Could not format string "%s":'
696
' %s', self.checker_command, error)
697
return True # Try again later
1169
command = self.checker_command % escaped_attrs
1170
except TypeError as error:
1171
logger.error('Could not format string "%s"',
1172
self.checker_command,
1173
exc_info=error)
1174
return True # Try again later
698
1175
self.current_checker_command = command
699
try:
700
logger.info("Starting checker %r for %s",
701
command, self.name)
702
# We don't need to redirect stdout and stderr, since
703
# in normal mode, that is already done by daemon(),
704
# and in debug mode we don't want to. (Stdin is
705
# always replaced by /dev/null.)
706
self.checker = subprocess.Popen(command,
707
close_fds=True,
708
shell=True, cwd="/")
709
self.checker_callback_tag = (gobject.child_watch_add
710
(self.checker.pid,
711
self.checker_callback,
712
data=command))
713
# The checker may have completed before the gobject
714
# watch was added. Check for this.
715
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
716
if pid:
717
gobject.source_remove(self.checker_callback_tag)
718
self.checker_callback(pid, status, command)
719
except OSError as error:
720
logger.error("Failed to start subprocess: %s",
721
error)
722
# Re-run this periodically if run by gobject.timeout_add
1176
logger.info("Starting checker %r for %s", command,
1177
self.name)
1178
# We don't need to redirect stdout and stderr, since
1179
# in normal mode, that is already done by daemon(),
1180
# and in debug mode we don't want to. (Stdin is
1181
# always replaced by /dev/null.)
1182
# The exception is when not debugging but nevertheless
1183
# running in the foreground; use the previously
1184
# created wnull.
1185
popen_args = {"close_fds": True,
1186
"shell": True,
1187
"cwd": "/"}
1188
if (not self.server_settings["debug"]
1189
and self.server_settings["foreground"]):
1190
popen_args.update({"stdout": wnull,
1191
"stderr": wnull})
1192
pipe = multiprocessing.Pipe(duplex=False)
1193
self.checker = multiprocessing.Process(
1194
target=call_pipe,
1195
args=(pipe[1], subprocess.call, command),
1196
kwargs=popen_args)
1197
self.checker.start()
1198
self.checker_callback_tag = GLib.io_add_watch(
1199
GLib.IOChannel.unix_new(pipe[0].fileno()),
1200
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1201
self.checker_callback, pipe[0], command)
1202
# Re-run this periodically if run by GLib.timeout_add
723
1203
return True
724
1204
725
1205
def stop_checker(self):
726
1206
"""Force the checker process, if any, to stop."""
727
1207
if self.checker_callback_tag:
728
gobject.source_remove(self.checker_callback_tag)
1208
GLib.source_remove(self.checker_callback_tag)
729
1209
self.checker_callback_tag = None
730
1210
if getattr(self, "checker", None) is None:
731
1211
return
732
1212
logger.debug("Stopping checker for %(name)s", vars(self))
733
try:
734
os.kill(self.checker.pid, signal.SIGTERM)
735
#time.sleep(0.5)
736
#if self.checker.poll() is None:
737
# os.kill(self.checker.pid, signal.SIGKILL)
738
except OSError as error:
739
if error.errno != errno.ESRCH: # No such process
740
raise
1213
self.checker.terminate()
741
1214
self.checker = None
742
1215
743
1216
744
def dbus_service_property(dbus_interface, signature="v",
745
access="readwrite", byte_arrays=False):
1217
def dbus_service_property(dbus_interface,
1218
signature="v",
1219
access="readwrite",
1220
byte_arrays=False):
746
1221
"""Decorators for marking methods of a DBusObjectWithProperties to
747
1222
become properties on the D-Bus.
748
1223
749
1224
The decorated method will be called with no arguments by "Get"
750
1225
and with one argument by "Set".
751
1226
752
1227
The parameters, where they are supported, are the same as
753
1228
dbus.service.method, except there is only "signature", since the
754
1229
type from Get() and the type sent to Set() is the same.
757
1232
# "Set" method, so we fail early here:
758
1233
if byte_arrays and signature != "ay":
759
1234
raise ValueError("Byte arrays not supported for non-'ay'"
760
" signature %r" % signature)
1235
" signature {!r}".format(signature))
1236
761
1237
def decorator(func):
762
1238
func._dbus_is_property = True
763
1239
func._dbus_interface = dbus_interface
766
1242
func._dbus_name = func.__name__
767
1243
if func._dbus_name.endswith("_dbus_property"):
768
1244
func._dbus_name = func._dbus_name[:-14]
769
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
770
return func
1245
func._dbus_get_args_options = {"byte_arrays": byte_arrays}
1246
return func
1247
1248
return decorator
1249
1250
1251
def dbus_interface_annotations(dbus_interface):
1252
"""Decorator for marking functions returning interface annotations
1253
1254
Usage:
1255
1256
@dbus_interface_annotations("org.example.Interface")
1257
def _foo(self): # Function name does not matter
1258
return {"org.freedesktop.DBus.Deprecated": "true",
1259
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1260
"false"}
1261
"""
1262
1263
def decorator(func):
1264
func._dbus_is_interface = True
1265
func._dbus_interface = dbus_interface
1266
func._dbus_name = dbus_interface
1267
return func
1268
1269
return decorator
1270
1271
1272
def dbus_annotations(annotations):
1273
"""Decorator to annotate D-Bus methods, signals or properties
1274
Usage:
1275
1276
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1277
"org.freedesktop.DBus.Property."
1278
"EmitsChangedSignal": "false"})
1279
@dbus_service_property("org.example.Interface", signature="b",
1280
access="r")
1281
def Property_dbus_property(self):
1282
return dbus.Boolean(False)
1283
1284
See also the DBusObjectWithAnnotations class.
1285
"""
1286
1287
def decorator(func):
1288
func._dbus_annotations = annotations
1289
return func
1290
771
1291
return decorator
772
1292
773
1293
774
1294
class DBusPropertyException(dbus.exceptions.DBusException):
775
1295
"""A base class for D-Bus property-related exceptions
776
1296
"""
777
def __unicode__(self):
778
return unicode(str(self))
1297
pass
779
1298
780
1299
781
1300
class DBusPropertyAccessException(DBusPropertyException):
790
1309
pass
791
1310
792
1311
793
class DBusObjectWithProperties(dbus.service.Object):
1312
class DBusObjectWithAnnotations(dbus.service.Object):
1313
"""A D-Bus object with annotations.
1314
1315
Classes inheriting from this can use the dbus_annotations
1316
decorator to add annotations to methods or signals.
1317
"""
1318
1319
@staticmethod
1320
def _is_dbus_thing(thing):
1321
"""Returns a function testing if an attribute is a D-Bus thing
1322
1323
If called like _is_dbus_thing("method") it returns a function
1324
suitable for use as predicate to inspect.getmembers().
1325
"""
1326
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1327
False)
1328
1329
def _get_all_dbus_things(self, thing):
1330
"""Returns a generator of (name, attribute) pairs
1331
"""
1332
return ((getattr(athing.__get__(self), "_dbus_name", name),
1333
athing.__get__(self))
1334
for cls in self.__class__.__mro__
1335
for name, athing in
1336
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1337
1338
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1339
out_signature="s",
1340
path_keyword="object_path",
1341
connection_keyword="connection")
1342
def Introspect(self, object_path, connection):
1343
"""Overloading of standard D-Bus method.
1344
1345
Inserts annotation tags on methods and signals.
1346
"""
1347
xmlstring = dbus.service.Object.Introspect(self, object_path,
1348
connection)
1349
try:
1350
document = xml.dom.minidom.parseString(xmlstring)
1351
1352
for if_tag in document.getElementsByTagName("interface"):
1353
# Add annotation tags
1354
for typ in ("method", "signal"):
1355
for tag in if_tag.getElementsByTagName(typ):
1356
annots = dict()
1357
for name, prop in (self.
1358
_get_all_dbus_things(typ)):
1359
if (name == tag.getAttribute("name")
1360
and prop._dbus_interface
1361
== if_tag.getAttribute("name")):
1362
annots.update(getattr(
1363
prop, "_dbus_annotations", {}))
1364
for name, value in annots.items():
1365
ann_tag = document.createElement(
1366
"annotation")
1367
ann_tag.setAttribute("name", name)
1368
ann_tag.setAttribute("value", value)
1369
tag.appendChild(ann_tag)
1370
# Add interface annotation tags
1371
for annotation, value in dict(
1372
itertools.chain.from_iterable(
1373
annotations().items()
1374
for name, annotations
1375
in self._get_all_dbus_things("interface")
1376
if name == if_tag.getAttribute("name")
1377
)).items():
1378
ann_tag = document.createElement("annotation")
1379
ann_tag.setAttribute("name", annotation)
1380
ann_tag.setAttribute("value", value)
1381
if_tag.appendChild(ann_tag)
1382
# Fix argument name for the Introspect method itself
1383
if (if_tag.getAttribute("name")
1384
== dbus.INTROSPECTABLE_IFACE):
1385
for cn in if_tag.getElementsByTagName("method"):
1386
if cn.getAttribute("name") == "Introspect":
1387
for arg in cn.getElementsByTagName("arg"):
1388
if (arg.getAttribute("direction")
1389
== "out"):
1390
arg.setAttribute("name",
1391
"xml_data")
1392
xmlstring = document.toxml("utf-8")
1393
document.unlink()
1394
except (AttributeError, xml.dom.DOMException,
1395
xml.parsers.expat.ExpatError) as error:
1396
logger.error("Failed to override Introspection method",
1397
exc_info=error)
1398
return xmlstring
1399
1400
1401
class DBusObjectWithProperties(DBusObjectWithAnnotations):
794
1402
"""A D-Bus object with properties.
795
1403
796
1404
Classes inheriting from this can use the dbus_service_property
797
1405
decorator to expose methods as D-Bus properties. It exposes the
798
1406
standard Get(), Set(), and GetAll() methods on the D-Bus.
799
1407
"""
800
801
@staticmethod
802
def _is_dbus_property(obj):
803
return getattr(obj, "_dbus_is_property", False)
804
805
def _get_all_dbus_properties(self):
806
"""Returns a generator of (name, attribute) pairs
807
"""
808
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
809
for cls in self.__class__.__mro__
810
for name, prop in
811
inspect.getmembers(cls, self._is_dbus_property))
812
1408
813
1409
def _get_dbus_property(self, interface_name, property_name):
814
1410
"""Returns a bound method if one exists which is a D-Bus
815
1411
property with the specified name and interface.
816
1412
"""
817
for cls in self.__class__.__mro__:
818
for name, value in (inspect.getmembers
819
(cls, self._is_dbus_property)):
1413
for cls in self.__class__.__mro__:
1414
for name, value in inspect.getmembers(
1415
cls, self._is_dbus_thing("property")):
820
1416
if (value._dbus_name == property_name
821
1417
and value._dbus_interface == interface_name):
822
1418
return value.__get__(self)
823
1419
824
1420
# No such property
825
raise DBusPropertyNotFound(self.dbus_object_path + ":"
826
+ interface_name + "."
827
+ property_name)
828
829
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1421
raise DBusPropertyNotFound("{}:{}.{}".format(
1422
self.dbus_object_path, interface_name, property_name))
1423
1424
@classmethod
1425
def _get_all_interface_names(cls):
1426
"""Get a sequence of all interfaces supported by an object"""
1427
return (name for name in set(getattr(getattr(x, attr),
1428
"_dbus_interface", None)
1429
for x in (inspect.getmro(cls))
1430
for attr in dir(x))
1431
if name is not None)
1432
1433
@dbus.service.method(dbus.PROPERTIES_IFACE,
1434
in_signature="ss",
830
1435
out_signature="v")
831
1436
def Get(self, interface_name, property_name):
832
1437
"""Standard D-Bus property Get() method, see D-Bus standard.
838
1443
if not hasattr(value, "variant_level"):
839
1444
return value
840
1445
return type(value)(value, variant_level=value.variant_level+1)
841
1446
842
1447
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
843
1448
def Set(self, interface_name, property_name, value):
844
1449
"""Standard D-Bus property Set() method, see D-Bus standard.
850
1455
# The byte_arrays option is not supported yet on
851
1456
# signatures other than "ay".
852
1457
if prop._dbus_signature != "ay":
853
raise ValueError
854
value = dbus.ByteArray(b''.join(chr(byte)
855
for byte in value))
1458
raise ValueError("Byte arrays not supported for non-"
1459
"'ay' signature {!r}"
1460
.format(prop._dbus_signature))
1461
value = dbus.ByteArray(bytes(value))
856
1462
prop(value)
857
858
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1463
1464
@dbus.service.method(dbus.PROPERTIES_IFACE,
1465
in_signature="s",
859
1466
out_signature="a{sv}")
860
1467
def GetAll(self, interface_name):
861
1468
"""Standard D-Bus property GetAll() method, see D-Bus
862
1469
standard.
863
1470
864
1471
Note: Will not include properties with access="write".
865
1472
"""
866
1473
properties = {}
867
for name, prop in self._get_all_dbus_properties():
1474
for name, prop in self._get_all_dbus_things("property"):
868
1475
if (interface_name
869
1476
and interface_name != prop._dbus_interface):
870
1477
# Interface non-empty but did not match
876
1483
if not hasattr(value, "variant_level"):
877
1484
properties[name] = value
878
1485
continue
879
properties[name] = type(value)(value, variant_level=
880
value.variant_level+1)
1486
properties[name] = type(value)(
1487
value, variant_level=value.variant_level + 1)
881
1488
return dbus.Dictionary(properties, signature="sv")
882
1489
1490
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1491
def PropertiesChanged(self, interface_name, changed_properties,
1492
invalidated_properties):
1493
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1494
standard.
1495
"""
1496
pass
1497
883
1498
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
884
1499
out_signature="s",
885
path_keyword='object_path',
886
connection_keyword='connection')
1500
path_keyword="object_path",
1501
connection_keyword="connection")
887
1502
def Introspect(self, object_path, connection):
888
"""Standard D-Bus method, overloaded to insert property tags.
1503
"""Overloading of standard D-Bus method.
1504
1505
Inserts property tags and interface annotation tags.
889
1506
"""
890
xmlstring = dbus.service.Object.Introspect(self, object_path,
891
connection)
1507
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1508
object_path,
1509
connection)
892
1510
try:
893
1511
document = xml.dom.minidom.parseString(xmlstring)
1512
894
1513
def make_tag(document, name, prop):
895
1514
e = document.createElement("property")
896
1515
e.setAttribute("name", name)
897
1516
e.setAttribute("type", prop._dbus_signature)
898
1517
e.setAttribute("access", prop._dbus_access)
899
1518
return e
1519
900
1520
for if_tag in document.getElementsByTagName("interface"):
1521
# Add property tags
901
1522
for tag in (make_tag(document, name, prop)
902
1523
for name, prop
903
in self._get_all_dbus_properties()
1524
in self._get_all_dbus_things("property")
904
1525
if prop._dbus_interface
905
1526
== if_tag.getAttribute("name")):
906
1527
if_tag.appendChild(tag)
1528
# Add annotation tags for properties
1529
for tag in if_tag.getElementsByTagName("property"):
1530
annots = dict()
1531
for name, prop in self._get_all_dbus_things(
1532
"property"):
1533
if (name == tag.getAttribute("name")
1534
and prop._dbus_interface
1535
== if_tag.getAttribute("name")):
1536
annots.update(getattr(
1537
prop, "_dbus_annotations", {}))
1538
for name, value in annots.items():
1539
ann_tag = document.createElement(
1540
"annotation")
1541
ann_tag.setAttribute("name", name)
1542
ann_tag.setAttribute("value", value)
1543
tag.appendChild(ann_tag)
907
1544
# Add the names to the return values for the
908
1545
# "org.freedesktop.DBus.Properties" methods
909
1546
if (if_tag.getAttribute("name")
924
1561
except (AttributeError, xml.dom.DOMException,
925
1562
xml.parsers.expat.ExpatError) as error:
926
1563
logger.error("Failed to override Introspection method",
927
error)
928
return xmlstring
929
930
931
def datetime_to_dbus (dt, variant_level=0):
1564
exc_info=error)
1565
return xmlstring
1566
1567
1568
try:
1569
dbus.OBJECT_MANAGER_IFACE
1570
except AttributeError:
1571
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1572
1573
1574
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1575
"""A D-Bus object with an ObjectManager.
1576
1577
Classes inheriting from this exposes the standard
1578
GetManagedObjects call and the InterfacesAdded and
1579
InterfacesRemoved signals on the standard
1580
"org.freedesktop.DBus.ObjectManager" interface.
1581
1582
Note: No signals are sent automatically; they must be sent
1583
manually.
1584
"""
1585
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1586
out_signature="a{oa{sa{sv}}}")
1587
def GetManagedObjects(self):
1588
"""This function must be overridden"""
1589
raise NotImplementedError()
1590
1591
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1592
signature="oa{sa{sv}}")
1593
def InterfacesAdded(self, object_path, interfaces_and_properties):
1594
pass
1595
1596
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1597
def InterfacesRemoved(self, object_path, interfaces):
1598
pass
1599
1600
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1601
out_signature="s",
1602
path_keyword="object_path",
1603
connection_keyword="connection")
1604
def Introspect(self, object_path, connection):
1605
"""Overloading of standard D-Bus method.
1606
1607
Override return argument name of GetManagedObjects to be
1608
"objpath_interfaces_and_properties"
1609
"""
1610
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1611
object_path,
1612
connection)
1613
try:
1614
document = xml.dom.minidom.parseString(xmlstring)
1615
1616
for if_tag in document.getElementsByTagName("interface"):
1617
# Fix argument name for the GetManagedObjects method
1618
if (if_tag.getAttribute("name")
1619
== dbus.OBJECT_MANAGER_IFACE):
1620
for cn in if_tag.getElementsByTagName("method"):
1621
if (cn.getAttribute("name")
1622
== "GetManagedObjects"):
1623
for arg in cn.getElementsByTagName("arg"):
1624
if (arg.getAttribute("direction")
1625
== "out"):
1626
arg.setAttribute(
1627
"name",
1628
"objpath_interfaces"
1629
"_and_properties")
1630
xmlstring = document.toxml("utf-8")
1631
document.unlink()
1632
except (AttributeError, xml.dom.DOMException,
1633
xml.parsers.expat.ExpatError) as error:
1634
logger.error("Failed to override Introspection method",
1635
exc_info=error)
1636
return xmlstring
1637
1638
1639
def datetime_to_dbus(dt, variant_level=0):
932
1640
"""Convert a UTC datetime.datetime() to a D-Bus type."""
933
1641
if dt is None:
934
return dbus.String("", variant_level = variant_level)
935
return dbus.String(dt.isoformat(),
936
variant_level=variant_level)
937
938
939
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
940
.__metaclass__):
941
"""Applied to an empty subclass of a D-Bus object, this metaclass
942
will add additional D-Bus attributes matching a certain pattern.
1642
return dbus.String("", variant_level=variant_level)
1643
return dbus.String(dt.isoformat(), variant_level=variant_level)
1644
1645
1646
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1647
"""A class decorator; applied to a subclass of
1648
dbus.service.Object, it will add alternate D-Bus attributes with
1649
interface names according to the "alt_interface_names" mapping.
1650
Usage:
1651
1652
@alternate_dbus_interfaces({"org.example.Interface":
1653
"net.example.AlternateInterface"})
1654
class SampleDBusObject(dbus.service.Object):
1655
@dbus.service.method("org.example.Interface")
1656
def SampleDBusMethod():
1657
pass
1658
1659
The above "SampleDBusMethod" on "SampleDBusObject" will be
1660
reachable via two interfaces: "org.example.Interface" and
1661
"net.example.AlternateInterface", the latter of which will have
1662
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1663
"true", unless "deprecate" is passed with a False value.
1664
1665
This works for methods and signals, and also for D-Bus properties
1666
(from DBusObjectWithProperties) and interfaces (from the
1667
dbus_interface_annotations decorator).
943
1668
"""
944
def __new__(mcs, name, bases, attr):
945
# Go through all the base classes which could have D-Bus
946
# methods, signals, or properties in them
947
for base in (b for b in bases
948
if issubclass(b, dbus.service.Object)):
949
# Go though all attributes of the base class
950
for attrname, attribute in inspect.getmembers(base):
1669
1670
def wrapper(cls):
1671
for orig_interface_name, alt_interface_name in (
1672
alt_interface_names.items()):
1673
attr = {}
1674
interface_names = set()
1675
# Go though all attributes of the class
1676
for attrname, attribute in inspect.getmembers(cls):
951
1677
# Ignore non-D-Bus attributes, and D-Bus attributes
952
1678
# with the wrong interface name
953
1679
if (not hasattr(attribute, "_dbus_interface")
954
or not attribute._dbus_interface
955
.startswith("se.recompile.Mandos")):
1680
or not attribute._dbus_interface.startswith(
1681
orig_interface_name)):
956
1682
continue
957
1683
# Create an alternate D-Bus interface name based on
958
1684
# the current name
959
alt_interface = (attribute._dbus_interface
960
.replace("se.recompile.Mandos",
961
"se.bsnet.fukt.Mandos"))
1685
alt_interface = attribute._dbus_interface.replace(
1686
orig_interface_name, alt_interface_name)
1687
interface_names.add(alt_interface)
962
1688
# Is this a D-Bus signal?
963
1689
if getattr(attribute, "_dbus_is_signal", False):
964
# Extract the original non-method function by
965
# black magic
966
nonmethod_func = (dict(
1690
# Extract the original non-method undecorated
1691
# function by black magic
1692
if sys.version_info.major == 2:
1693
nonmethod_func = (dict(
967
1694
zip(attribute.func_code.co_freevars,
968
attribute.__closure__))["func"]
969
.cell_contents)
1695
attribute.__closure__))
1696
["func"].cell_contents)
1697
else:
1698
nonmethod_func = (dict(
1699
zip(attribute.__code__.co_freevars,
1700
attribute.__closure__))
1701
["func"].cell_contents)
970
1702
# Create a new, but exactly alike, function
971
1703
# object, and decorate it to be a new D-Bus signal
972
1704
# with the alternate D-Bus interface name
973
new_function = (dbus.service.signal
974
(alt_interface,
975
attribute._dbus_signature)
976
(types.FunctionType(
977
nonmethod_func.func_code,
978
nonmethod_func.func_globals,
979
nonmethod_func.func_name,
980
nonmethod_func.func_defaults,
981
nonmethod_func.func_closure)))
1705
new_function = copy_function(nonmethod_func)
1706
new_function = (dbus.service.signal(
1707
alt_interface,
1708
attribute._dbus_signature)(new_function))
1709
# Copy annotations, if any
1710
try:
1711
new_function._dbus_annotations = dict(
1712
attribute._dbus_annotations)
1713
except AttributeError:
1714
pass
1715
982
1716
# Define a creator of a function to call both the
983
# old and new functions, so both the old and new
984
# signals gets sent when the function is called
1717
# original and alternate functions, so both the
1718
# original and alternate signals gets sent when
1719
# the function is called
985
1720
def fixscope(func1, func2):
986
1721
"""This function is a scope container to pass
987
1722
func1 and func2 to the "call_both" function
988
1723
outside of its arguments"""
1724
1725
@functools.wraps(func2)
989
1726
def call_both(*args, **kwargs):
990
1727
"""This function will emit two D-Bus
991
1728
signals by calling func1 and func2"""
992
1729
func1(*args, **kwargs)
993
1730
func2(*args, **kwargs)
1731
# Make wrapper function look like a D-Bus
1732
# signal
1733
for name, attr in inspect.getmembers(func2):
1734
if name.startswith("_dbus_"):
1735
setattr(call_both, name, attr)
1736
994
1737
return call_both
995
1738
# Create the "call_both" function and add it to
996
1739
# the class
997
attr[attrname] = fixscope(attribute,
998
new_function)
1740
attr[attrname] = fixscope(attribute, new_function)
999
1741
# Is this a D-Bus method?
1000
1742
elif getattr(attribute, "_dbus_is_method", False):
1001
1743
# Create a new, but exactly alike, function
1002
1744
# object. Decorate it to be a new D-Bus method
1003
1745
# with the alternate D-Bus interface name. Add it
1004
1746
# to the class.
1005
attr[attrname] = (dbus.service.method
1006
(alt_interface,
1007
attribute._dbus_in_signature,
1008
attribute._dbus_out_signature)
1009
(types.FunctionType
1010
(attribute.func_code,
1011
attribute.func_globals,
1012
attribute.func_name,
1013
attribute.func_defaults,
1014
attribute.func_closure)))
1747
attr[attrname] = (
1748
dbus.service.method(
1749
alt_interface,
1750
attribute._dbus_in_signature,
1751
attribute._dbus_out_signature)
1752
(copy_function(attribute)))
1753
# Copy annotations, if any
1754
try:
1755
attr[attrname]._dbus_annotations = dict(
1756
attribute._dbus_annotations)
1757
except AttributeError:
1758
pass
1015
1759
# Is this a D-Bus property?
1016
1760
elif getattr(attribute, "_dbus_is_property", False):
1017
1761
# Create a new, but exactly alike, function
1018
1762
# object, and decorate it to be a new D-Bus
1019
1763
# property with the alternate D-Bus interface
1020
1764
# name. Add it to the class.
1021
attr[attrname] = (dbus_service_property
1022
(alt_interface,
1023
attribute._dbus_signature,
1024
attribute._dbus_access,
1025
attribute
1026
._dbus_get_args_options
1027
["byte_arrays"])
1028
(types.FunctionType
1029
(attribute.func_code,
1030
attribute.func_globals,
1031
attribute.func_name,
1032
attribute.func_defaults,
1033
attribute.func_closure)))
1034
return type.__new__(mcs, name, bases, attr)
1035
1036
1765
attr[attrname] = (dbus_service_property(
1766
alt_interface, attribute._dbus_signature,
1767
attribute._dbus_access,
1768
attribute._dbus_get_args_options
1769
["byte_arrays"])
1770
(copy_function(attribute)))
1771
# Copy annotations, if any
1772
try:
1773
attr[attrname]._dbus_annotations = dict(
1774
attribute._dbus_annotations)
1775
except AttributeError:
1776
pass
1777
# Is this a D-Bus interface?
1778
elif getattr(attribute, "_dbus_is_interface", False):
1779
# Create a new, but exactly alike, function
1780
# object. Decorate it to be a new D-Bus interface
1781
# with the alternate D-Bus interface name. Add it
1782
# to the class.
1783
attr[attrname] = (
1784
dbus_interface_annotations(alt_interface)
1785
(copy_function(attribute)))
1786
if deprecate:
1787
# Deprecate all alternate interfaces
1788
iname = "_AlternateDBusNames_interface_annotation{}"
1789
for interface_name in interface_names:
1790
1791
@dbus_interface_annotations(interface_name)
1792
def func(self):
1793
return {"org.freedesktop.DBus.Deprecated":
1794
"true"}
1795
# Find an unused name
1796
for aname in (iname.format(i)
1797
for i in itertools.count()):
1798
if aname not in attr:
1799
attr[aname] = func
1800
break
1801
if interface_names:
1802
# Replace the class with a new subclass of it with
1803
# methods, signals, etc. as created above.
1804
if sys.version_info.major == 2:
1805
cls = type(b"{}Alternate".format(cls.__name__),
1806
(cls, ), attr)
1807
else:
1808
cls = type("{}Alternate".format(cls.__name__),
1809
(cls, ), attr)
1810
return cls
1811
1812
return wrapper
1813
1814
1815
@alternate_dbus_interfaces({"se.recompile.Mandos":
1816
"se.bsnet.fukt.Mandos"})
1037
1817
class ClientDBus(Client, DBusObjectWithProperties):
1038
1818
"""A Client class using D-Bus
1039
1819
1040
1820
Attributes:
1041
1821
dbus_object_path: dbus.ObjectPath
1042
1822
bus: dbus.SystemBus()
1043
1823
"""
1044
1824
1045
1825
runtime_expansions = (Client.runtime_expansions
1046
+ ("dbus_object_path",))
1047
1826
+ ("dbus_object_path", ))
1827
1828
_interface = "se.recompile.Mandos.Client"
1829
1048
1830
# dbus.service.Object doesn't use super(), so we can't either.
1049
1050
def __init__(self, bus = None, *args, **kwargs):
1831
1832
def __init__(self, bus=None, *args, **kwargs):
1051
1833
self.bus = bus
1052
1834
Client.__init__(self, *args, **kwargs)
1053
1835
# Only now, when this client is initialized, can it show up on
1054
1836
# the D-Bus
1055
client_object_name = unicode(self.name).translate(
1837
client_object_name = str(self.name).translate(
1056
1838
{ord("."): ord("_"),
1057
1839
ord("-"): ord("_")})
1058
self.dbus_object_path = (dbus.ObjectPath
1059
("/clients/" + client_object_name))
1840
self.dbus_object_path = dbus.ObjectPath(
1841
"/clients/" + client_object_name)
1060
1842
DBusObjectWithProperties.__init__(self, self.bus,
1061
1843
self.dbus_object_path)
1062
1063
def notifychangeproperty(transform_func,
1064
dbus_name, type_func=lambda x: x,
1065
variant_level=1):
1844
1845
def notifychangeproperty(transform_func, dbus_name,
1846
type_func=lambda x: x,
1847
variant_level=1,
1848
invalidate_only=False,
1849
_interface=_interface):
1066
1850
""" Modify a variable so that it's a property which announces
1067
1851
its changes to DBus.
1068
1852
1069
1853
transform_fun: Function that takes a value and a variant_level
1070
1854
and transforms it to a D-Bus type.
1071
1855
dbus_name: D-Bus name of the variable
1073
1857
to the D-Bus. Default: no transform
1074
1858
variant_level: D-Bus variant level. Default: 1
1075
1859
"""
1076
attrname = "_{0}".format(dbus_name)
1860
attrname = "_{}".format(dbus_name)
1861
1077
1862
def setter(self, value):
1078
1863
if hasattr(self, "dbus_object_path"):
1079
1864
if (not hasattr(self, attrname) or
1080
1865
type_func(getattr(self, attrname, None))
1081
1866
!= type_func(value)):
1082
dbus_value = transform_func(type_func(value),
1083
variant_level
1084
=variant_level)
1085
self.PropertyChanged(dbus.String(dbus_name),
1086
dbus_value)
1867
if invalidate_only:
1868
self.PropertiesChanged(
1869
_interface, dbus.Dictionary(),
1870
dbus.Array((dbus_name, )))
1871
else:
1872
dbus_value = transform_func(
1873
type_func(value),
1874
variant_level=variant_level)
1875
self.PropertyChanged(dbus.String(dbus_name),
1876
dbus_value)
1877
self.PropertiesChanged(
1878
_interface,
1879
dbus.Dictionary({dbus.String(dbus_name):
1880
dbus_value}),
1881
dbus.Array())
1087
1882
setattr(self, attrname, value)
1088
1883
1089
1884
return property(lambda self: getattr(self, attrname), setter)
1090
1091
1885
1092
1886
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1093
1887
approvals_pending = notifychangeproperty(dbus.Boolean,
1094
1888
"ApprovalPending",
1095
type_func = bool)
1889
type_func=bool)
1096
1890
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1097
1891
last_enabled = notifychangeproperty(datetime_to_dbus,
1098
1892
"LastEnabled")
1099
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1100
type_func = lambda checker:
1101
checker is not None)
1893
checker = notifychangeproperty(
1894
dbus.Boolean, "CheckerRunning",
1895
type_func=lambda checker: checker is not None)
1102
1896
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1103
1897
"LastCheckedOK")
1104
1898
last_checker_status = notifychangeproperty(dbus.Int16,
1107
1901
datetime_to_dbus, "LastApprovalRequest")
1108
1902
approved_by_default = notifychangeproperty(dbus.Boolean,
1109
1903
"ApprovedByDefault")
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1111
"ApprovalDelay",
1112
type_func =
1113
timedelta_to_milliseconds)
1904
approval_delay = notifychangeproperty(
1905
dbus.UInt64, "ApprovalDelay",
1906
type_func=lambda td: td.total_seconds() * 1000)
1114
1907
approval_duration = notifychangeproperty(
1115
1908
dbus.UInt64, "ApprovalDuration",
1116
type_func = timedelta_to_milliseconds)
1909
type_func=lambda td: td.total_seconds() * 1000)
1117
1910
host = notifychangeproperty(dbus.String, "Host")
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
type_func =
1120
timedelta_to_milliseconds)
1911
timeout = notifychangeproperty(
1912
dbus.UInt64, "Timeout",
1913
type_func=lambda td: td.total_seconds() * 1000)
1121
1914
extended_timeout = notifychangeproperty(
1122
1915
dbus.UInt64, "ExtendedTimeout",
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1125
"Interval",
1126
type_func =
1127
timedelta_to_milliseconds)
1916
type_func=lambda td: td.total_seconds() * 1000)
1917
interval = notifychangeproperty(
1918
dbus.UInt64, "Interval",
1919
type_func=lambda td: td.total_seconds() * 1000)
1128
1920
checker_command = notifychangeproperty(dbus.String, "Checker")
1129
1921
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1922
invalidate_only=True)
1923
1130
1924
del notifychangeproperty
1131
1925
1132
1926
def __del__(self, *args, **kwargs):
1133
1927
try:
1134
1928
self.remove_from_connection()
1137
1931
if hasattr(DBusObjectWithProperties, "__del__"):
1138
1932
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1139
1933
Client.__del__(self, *args, **kwargs)
1140
1141
def checker_callback(self, pid, condition, command,
1142
*args, **kwargs):
1143
self.checker_callback_tag = None
1144
self.checker = None
1145
if os.WIFEXITED(condition):
1146
exitstatus = os.WEXITSTATUS(condition)
1934
1935
def checker_callback(self, source, condition,
1936
connection, command, *args, **kwargs):
1937
ret = Client.checker_callback(self, source, condition,
1938
connection, command, *args,
1939
**kwargs)
1940
exitstatus = self.last_checker_status
1941
if exitstatus >= 0:
1147
1942
# Emit D-Bus signal
1148
1943
self.CheckerCompleted(dbus.Int16(exitstatus),
1149
dbus.Int64(condition),
1944
# This is specific to GNU libC
1945
dbus.Int64(exitstatus << 8),
1150
1946
dbus.String(command))
1151
1947
else:
1152
1948
# Emit D-Bus signal
1153
1949
self.CheckerCompleted(dbus.Int16(-1),
1154
dbus.Int64(condition),
1950
dbus.Int64(
1951
# This is specific to GNU libC
1952
(exitstatus << 8)
1953
| self.last_checker_signal),
1155
1954
dbus.String(command))
1156
1157
return Client.checker_callback(self, pid, condition, command,
1158
*args, **kwargs)
1159
1955
return ret
1956
1160
1957
def start_checker(self, *args, **kwargs):
1161
old_checker = self.checker
1162
if self.checker is not None:
1163
old_checker_pid = self.checker.pid
1164
else:
1165
old_checker_pid = None
1958
old_checker_pid = getattr(self.checker, "pid", None)
1166
1959
r = Client.start_checker(self, *args, **kwargs)
1167
1960
# Only if new checker process was started
1168
1961
if (self.checker is not None
1170
1963
# Emit D-Bus signal
1171
1964
self.CheckerStarted(self.current_checker_command)
1172
1965
return r
1173
1966
1174
1967
def _reset_approved(self):
1175
1968
self.approved = None
1176
1969
return False
1177
1970
1178
1971
def approve(self, value=True):
1179
self.send_changedstate()
1180
1972
self.approved = value
1181
gobject.timeout_add(timedelta_to_milliseconds
1182
(self.approval_duration),
1183
self._reset_approved)
1184
1185
1186
## D-Bus methods, signals & properties
1187
_interface = "se.recompile.Mandos.Client"
1188
1189
## Signals
1190
1973
GLib.timeout_add(int(self.approval_duration.total_seconds()
1974
* 1000), self._reset_approved)
1975
self.send_changedstate()
1976
1977
# D-Bus methods, signals & properties
1978
1979
# Interfaces
1980
1981
# Signals
1982
1191
1983
# CheckerCompleted - signal
1192
1984
@dbus.service.signal(_interface, signature="nxs")
1193
1985
def CheckerCompleted(self, exitcode, waitstatus, command):
1194
1986
"D-Bus signal"
1195
1987
pass
1196
1988
1197
1989
# CheckerStarted - signal
1198
1990
@dbus.service.signal(_interface, signature="s")
1199
1991
def CheckerStarted(self, command):
1200
1992
"D-Bus signal"
1201
1993
pass
1202
1994
1203
1995
# PropertyChanged - signal
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1204
1997
@dbus.service.signal(_interface, signature="sv")
1205
1998
def PropertyChanged(self, property, value):
1206
1999
"D-Bus signal"
1207
2000
pass
1208
2001
1209
2002
# GotSecret - signal
1210
2003
@dbus.service.signal(_interface)
1211
2004
def GotSecret(self):
1214
2007
server to mandos-client
1215
2008
"""
1216
2009
pass
1217
2010
1218
2011
# Rejected - signal
1219
2012
@dbus.service.signal(_interface, signature="s")
1220
2013
def Rejected(self, reason):
1221
2014
"D-Bus signal"
1222
2015
pass
1223
2016
1224
2017
# NeedApproval - signal
1225
2018
@dbus.service.signal(_interface, signature="tb")
1226
2019
def NeedApproval(self, timeout, default):
1227
2020
"D-Bus signal"
1228
2021
return self.need_approval()
1229
1230
## Methods
1231
2022
2023
# Methods
2024
1232
2025
# Approve - method
1233
2026
@dbus.service.method(_interface, in_signature="b")
1234
2027
def Approve(self, value):
1235
2028
self.approve(value)
1236
2029
1237
2030
# CheckedOK - method
1238
2031
@dbus.service.method(_interface)
1239
2032
def CheckedOK(self):
1240
2033
self.checked_ok()
1241
2034
1242
2035
# Enable - method
2036
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1243
2037
@dbus.service.method(_interface)
1244
2038
def Enable(self):
1245
2039
"D-Bus method"
1246
2040
self.enable()
1247
2041
1248
2042
# StartChecker - method
2043
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1249
2044
@dbus.service.method(_interface)
1250
2045
def StartChecker(self):
1251
2046
"D-Bus method"
1252
2047
self.start_checker()
1253
2048
1254
2049
# Disable - method
2050
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1255
2051
@dbus.service.method(_interface)
1256
2052
def Disable(self):
1257
2053
"D-Bus method"
1258
2054
self.disable()
1259
2055
1260
2056
# StopChecker - method
2057
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1261
2058
@dbus.service.method(_interface)
1262
2059
def StopChecker(self):
1263
2060
self.stop_checker()
1264
1265
## Properties
1266
2061
2062
# Properties
2063
1267
2064
# ApprovalPending - property
1268
2065
@dbus_service_property(_interface, signature="b", access="read")
1269
2066
def ApprovalPending_dbus_property(self):
1270
2067
return dbus.Boolean(bool(self.approvals_pending))
1271
2068
1272
2069
# ApprovedByDefault - property
1273
@dbus_service_property(_interface, signature="b",
2070
@dbus_service_property(_interface,
2071
signature="b",
1274
2072
access="readwrite")
1275
2073
def ApprovedByDefault_dbus_property(self, value=None):
1276
2074
if value is None: # get
1277
2075
return dbus.Boolean(self.approved_by_default)
1278
2076
self.approved_by_default = bool(value)
1279
2077
1280
2078
# ApprovalDelay - property
1281
@dbus_service_property(_interface, signature="t",
2079
@dbus_service_property(_interface,
2080
signature="t",
1282
2081
access="readwrite")
1283
2082
def ApprovalDelay_dbus_property(self, value=None):
1284
2083
if value is None: # get
1285
return dbus.UInt64(self.approval_delay_milliseconds())
2084
return dbus.UInt64(self.approval_delay.total_seconds()
2085
* 1000)
1286
2086
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1287
2087
1288
2088
# ApprovalDuration - property
1289
@dbus_service_property(_interface, signature="t",
2089
@dbus_service_property(_interface,
2090
signature="t",
1290
2091
access="readwrite")
1291
2092
def ApprovalDuration_dbus_property(self, value=None):
1292
2093
if value is None: # get
1293
return dbus.UInt64(timedelta_to_milliseconds(
1294
self.approval_duration))
2094
return dbus.UInt64(self.approval_duration.total_seconds()
2095
* 1000)
1295
2096
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1296
2097
1297
2098
# Name - property
2099
@dbus_annotations(
2100
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1298
2101
@dbus_service_property(_interface, signature="s", access="read")
1299
2102
def Name_dbus_property(self):
1300
2103
return dbus.String(self.name)
1301
2104
2105
# KeyID - property
2106
@dbus_annotations(
2107
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2108
@dbus_service_property(_interface, signature="s", access="read")
2109
def KeyID_dbus_property(self):
2110
return dbus.String(self.key_id)
2111
1302
2112
# Fingerprint - property
2113
@dbus_annotations(
2114
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1303
2115
@dbus_service_property(_interface, signature="s", access="read")
1304
2116
def Fingerprint_dbus_property(self):
1305
2117
return dbus.String(self.fingerprint)
1306
2118
1307
2119
# Host - property
1308
@dbus_service_property(_interface, signature="s",
2120
@dbus_service_property(_interface,
2121
signature="s",
1309
2122
access="readwrite")
1310
2123
def Host_dbus_property(self, value=None):
1311
2124
if value is None: # get
1312
2125
return dbus.String(self.host)
1313
self.host = unicode(value)
1314
2126
self.host = str(value)
2127
1315
2128
# Created - property
2129
@dbus_annotations(
2130
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1316
2131
@dbus_service_property(_interface, signature="s", access="read")
1317
2132
def Created_dbus_property(self):
1318
2133
return datetime_to_dbus(self.created)
1319
2134
1320
2135
# LastEnabled - property
1321
2136
@dbus_service_property(_interface, signature="s", access="read")
1322
2137
def LastEnabled_dbus_property(self):
1323
2138
return datetime_to_dbus(self.last_enabled)
1324
2139
1325
2140
# Enabled - property
1326
@dbus_service_property(_interface, signature="b",
2141
@dbus_service_property(_interface,
2142
signature="b",
1327
2143
access="readwrite")
1328
2144
def Enabled_dbus_property(self, value=None):
1329
2145
if value is None: # get
1332
2148
self.enable()
1333
2149
else:
1334
2150
self.disable()
1335
2151
1336
2152
# LastCheckedOK - property
1337
@dbus_service_property(_interface, signature="s",
2153
@dbus_service_property(_interface,
2154
signature="s",
1338
2155
access="readwrite")
1339
2156
def LastCheckedOK_dbus_property(self, value=None):
1340
2157
if value is not None:
1341
2158
self.checked_ok()
1342
2159
return
1343
2160
return datetime_to_dbus(self.last_checked_ok)
1344
2161
1345
2162
# LastCheckerStatus - property
1346
@dbus_service_property(_interface, signature="n",
1347
access="read")
2163
@dbus_service_property(_interface, signature="n", access="read")
1348
2164
def LastCheckerStatus_dbus_property(self):
1349
2165
return dbus.Int16(self.last_checker_status)
1350
2166
1351
2167
# Expires - property
1352
2168
@dbus_service_property(_interface, signature="s", access="read")
1353
2169
def Expires_dbus_property(self):
1354
2170
return datetime_to_dbus(self.expires)
1355
2171
1356
2172
# LastApprovalRequest - property
1357
2173
@dbus_service_property(_interface, signature="s", access="read")
1358
2174
def LastApprovalRequest_dbus_property(self):
1359
2175
return datetime_to_dbus(self.last_approval_request)
1360
2176
1361
2177
# Timeout - property
1362
@dbus_service_property(_interface, signature="t",
2178
@dbus_service_property(_interface,
2179
signature="t",
1363
2180
access="readwrite")
1364
2181
def Timeout_dbus_property(self, value=None):
1365
2182
if value is None: # get
1366
return dbus.UInt64(self.timeout_milliseconds())
2183
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2184
old_timeout = self.timeout
1367
2185
self.timeout = datetime.timedelta(0, 0, 0, value)
1368
# Reschedule timeout
2186
# Reschedule disabling
1369
2187
if self.enabled:
1370
2188
now = datetime.datetime.utcnow()
1371
time_to_die = timedelta_to_milliseconds(
1372
(self.last_checked_ok + self.timeout) - now)
1373
if time_to_die <= 0:
2189
self.expires += self.timeout - old_timeout
2190
if self.expires <= now:
1374
2191
# The timeout has passed
1375
2192
self.disable()
1376
2193
else:
1377
self.expires = (now +
1378
datetime.timedelta(milliseconds =
1379
time_to_die))
1380
2194
if (getattr(self, "disable_initiator_tag", None)
1381
2195
is None):
1382
2196
return
1383
gobject.source_remove(self.disable_initiator_tag)
1384
self.disable_initiator_tag = (gobject.timeout_add
1385
(time_to_die,
1386
self.disable))
1387
2197
GLib.source_remove(self.disable_initiator_tag)
2198
self.disable_initiator_tag = GLib.timeout_add(
2199
int((self.expires - now).total_seconds() * 1000),
2200
self.disable)
2201
1388
2202
# ExtendedTimeout - property
1389
@dbus_service_property(_interface, signature="t",
2203
@dbus_service_property(_interface,
2204
signature="t",
1390
2205
access="readwrite")
1391
2206
def ExtendedTimeout_dbus_property(self, value=None):
1392
2207
if value is None: # get
1393
return dbus.UInt64(self.extended_timeout_milliseconds())
2208
return dbus.UInt64(self.extended_timeout.total_seconds()
2209
* 1000)
1394
2210
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1395
2211
1396
2212
# Interval - property
1397
@dbus_service_property(_interface, signature="t",
2213
@dbus_service_property(_interface,
2214
signature="t",
1398
2215
access="readwrite")
1399
2216
def Interval_dbus_property(self, value=None):
1400
2217
if value is None: # get
1401
return dbus.UInt64(self.interval_milliseconds())
2218
return dbus.UInt64(self.interval.total_seconds() * 1000)
1402
2219
self.interval = datetime.timedelta(0, 0, 0, value)
1403
2220
if getattr(self, "checker_initiator_tag", None) is None:
1404
2221
return
1405
2222
if self.enabled:
1406
2223
# Reschedule checker run
1407
gobject.source_remove(self.checker_initiator_tag)
1408
self.checker_initiator_tag = (gobject.timeout_add
1409
(value, self.start_checker))
1410
self.start_checker() # Start one now, too
1411
2224
GLib.source_remove(self.checker_initiator_tag)
2225
self.checker_initiator_tag = GLib.timeout_add(
2226
value, self.start_checker)
2227
self.start_checker() # Start one now, too
2228
1412
2229
# Checker - property
1413
@dbus_service_property(_interface, signature="s",
2230
@dbus_service_property(_interface,
2231
signature="s",
1414
2232
access="readwrite")
1415
2233
def Checker_dbus_property(self, value=None):
1416
2234
if value is None: # get
1417
2235
return dbus.String(self.checker_command)
1418
self.checker_command = unicode(value)
1419
2236
self.checker_command = str(value)
2237
1420
2238
# CheckerRunning - property
1421
@dbus_service_property(_interface, signature="b",
2239
@dbus_service_property(_interface,
2240
signature="b",
1422
2241
access="readwrite")
1423
2242
def CheckerRunning_dbus_property(self, value=None):
1424
2243
if value is None: # get
1427
2246
self.start_checker()
1428
2247
else:
1429
2248
self.stop_checker()
1430
2249
1431
2250
# ObjectPath - property
2251
@dbus_annotations(
2252
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2253
"org.freedesktop.DBus.Deprecated": "true"})
1432
2254
@dbus_service_property(_interface, signature="o", access="read")
1433
2255
def ObjectPath_dbus_property(self):
1434
return self.dbus_object_path # is already a dbus.ObjectPath
1435
2256
return self.dbus_object_path # is already a dbus.ObjectPath
2257
1436
2258
# Secret = property
1437
@dbus_service_property(_interface, signature="ay",
1438
access="write", byte_arrays=True)
2259
@dbus_annotations(
2260
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2261
"invalidates"})
2262
@dbus_service_property(_interface,
2263
signature="ay",
2264
access="write",
2265
byte_arrays=True)
1439
2266
def Secret_dbus_property(self, value):
1440
self.secret = str(value)
1441
2267
self.secret = bytes(value)
2268
1442
2269
del _interface
1443
2270
1444
2271
1445
class ProxyClient(object):
1446
def __init__(self, child_pipe, fpr, address):
2272
class ProxyClient:
2273
def __init__(self, child_pipe, key_id, fpr, address):
1447
2274
self._pipe = child_pipe
1448
self._pipe.send(('init', fpr, address))
2275
self._pipe.send(("init", key_id, fpr, address))
1449
2276
if not self._pipe.recv():
1450
raise KeyError()
1451
2277
raise KeyError(key_id or fpr)
2278
1452
2279
def __getattribute__(self, name):
1453
if name == '_pipe':
2280
if name == "_pipe":
1454
2281
return super(ProxyClient, self).__getattribute__(name)
1455
self._pipe.send(('getattr', name))
2282
self._pipe.send(("getattr", name))
1456
2283
data = self._pipe.recv()
1457
if data[0] == 'data':
2284
if data[0] == "data":
1458
2285
return data[1]
1459
if data[0] == 'function':
2286
if data[0] == "function":
2287
1460
2288
def func(*args, **kwargs):
1461
self._pipe.send(('funcall', name, args, kwargs))
2289
self._pipe.send(("funcall", name, args, kwargs))
1462
2290
return self._pipe.recv()[1]
2291
1463
2292
return func
1464
2293
1465
2294
def __setattr__(self, name, value):
1466
if name == '_pipe':
2295
if name == "_pipe":
1467
2296
return super(ProxyClient, self).__setattr__(name, value)
1468
self._pipe.send(('setattr', name, value))
1469
1470
1471
class ClientDBusTransitional(ClientDBus):
1472
__metaclass__ = AlternateDBusNamesMetaclass
2297
self._pipe.send(("setattr", name, value))
1473
2298
1474
2299
1475
2300
class ClientHandler(socketserver.BaseRequestHandler, object):
1476
2301
"""A class to handle client connections.
1477
2302
1478
2303
Instantiated once for each connection to handle it.
1479
2304
Note: This will run in its own forked process."""
1480
2305
1481
2306
def handle(self):
1482
2307
with contextlib.closing(self.server.child_pipe) as child_pipe:
1483
2308
logger.info("TCP connection from: %s",
1484
unicode(self.client_address))
2309
str(self.client_address))
1485
2310
logger.debug("Pipe FD: %d",
1486
2311
self.server.child_pipe.fileno())
1487
1488
session = (gnutls.connection
1489
.ClientSession(self.request,
1490
gnutls.connection
1491
.X509Credentials()))
1492
1493
# Note: gnutls.connection.X509Credentials is really a
1494
# generic GnuTLS certificate credentials object so long as
1495
# no X.509 keys are added to it. Therefore, we can use it
1496
# here despite using OpenPGP certificates.
1497
1498
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1499
# "+AES-256-CBC", "+SHA1",
1500
# "+COMP-NULL", "+CTYPE-OPENPGP",
1501
# "+DHE-DSS"))
2312
2313
session = gnutls.ClientSession(self.request)
2314
2315
# priority = ":".join(("NONE", "+VERS-TLS1.1",
2316
# "+AES-256-CBC", "+SHA1",
2317
# "+COMP-NULL", "+CTYPE-OPENPGP",
2318
# "+DHE-DSS"))
1502
2319
# Use a fallback default, since this MUST be set.
1503
2320
priority = self.server.gnutls_priority
1504
2321
if priority is None:
1505
2322
priority = "NORMAL"
1506
(gnutls.library.functions
1507
.gnutls_priority_set_direct(session._c_object,
1508
priority, None))
1509
2323
gnutls.priority_set_direct(session,
2324
priority.encode("utf-8"), None)
2325
1510
2326
# Start communication using the Mandos protocol
1511
2327
# Get protocol number
1512
2328
line = self.request.makefile().readline()
1513
2329
logger.debug("Protocol version: %r", line)
1514
2330
try:
1515
2331
if int(line.strip().split()[0]) > 1:
1516
raise RuntimeError
2332
raise RuntimeError(line)
1517
2333
except (ValueError, IndexError, RuntimeError) as error:
1518
2334
logger.error("Unknown protocol version: %s", error)
1519
2335
return
1520
2336
1521
2337
# Start GnuTLS connection
1522
2338
try:
1523
2339
session.handshake()
1524
except gnutls.errors.GNUTLSError as error:
2340
except gnutls.Error as error:
1525
2341
logger.warning("Handshake failed: %s", error)
1526
2342
# Do not run session.bye() here: the session is not
1527
2343
# established. Just abandon the request.
1528
2344
return
1529
2345
logger.debug("Handshake succeeded")
1530
2346
1531
2347
approval_required = False
1532
2348
try:
1533
try:
1534
fpr = self.fingerprint(self.peer_certificate
1535
(session))
1536
except (TypeError,
1537
gnutls.errors.GNUTLSError) as error:
1538
logger.warning("Bad certificate: %s", error)
1539
return
1540
logger.debug("Fingerprint: %s", fpr)
1541
1542
try:
1543
client = ProxyClient(child_pipe, fpr,
2349
if gnutls.has_rawpk:
2350
fpr = b""
2351
try:
2352
key_id = self.key_id(
2353
self.peer_certificate(session))
2354
except (TypeError, gnutls.Error) as error:
2355
logger.warning("Bad certificate: %s", error)
2356
return
2357
logger.debug("Key ID: %s",
2358
key_id.decode("utf-8",
2359
errors="replace"))
2360
2361
else:
2362
key_id = b""
2363
try:
2364
fpr = self.fingerprint(
2365
self.peer_certificate(session))
2366
except (TypeError, gnutls.Error) as error:
2367
logger.warning("Bad certificate: %s", error)
2368
return
2369
logger.debug("Fingerprint: %s", fpr)
2370
2371
try:
2372
client = ProxyClient(child_pipe, key_id, fpr,
1544
2373
self.client_address)
1545
2374
except KeyError:
1546
2375
return
1547
2376
1548
2377
if client.approval_delay:
1549
2378
delay = client.approval_delay
1550
2379
client.approvals_pending += 1
1551
2380
approval_required = True
1552
2381
1553
2382
while True:
1554
2383
if not client.enabled:
1555
2384
logger.info("Client %s is disabled",
1556
client.name)
2385
client.name)
1557
2386
if self.server.use_dbus:
1558
2387
# Emit D-Bus signal
1559
2388
client.Rejected("Disabled")
1560
2389
return
1561
2390
1562
2391
if client.approved or not client.approval_delay:
1563
#We are approved or approval is disabled
2392
# We are approved or approval is disabled
1564
2393
break
1565
2394
elif client.approved is None:
1566
2395
logger.info("Client %s needs approval",
1568
2397
if self.server.use_dbus:
1569
2398
# Emit D-Bus signal
1570
2399
client.NeedApproval(
1571
client.approval_delay_milliseconds(),
1572
client.approved_by_default)
2400
client.approval_delay.total_seconds()
2401
* 1000, client.approved_by_default)
1573
2402
else:
1574
2403
logger.warning("Client %s was not approved",
1575
2404
client.name)
1577
2406
# Emit D-Bus signal
1578
2407
client.Rejected("Denied")
1579
2408
return
1580
1581
#wait until timeout or approved
2409
2410
# wait until timeout or approved
1582
2411
time = datetime.datetime.now()
1583
2412
client.changedstate.acquire()
1584
(client.changedstate.wait
1585
(float(client.timedelta_to_milliseconds(delay)
1586
/ 1000)))
2413
client.changedstate.wait(delay.total_seconds())
1587
2414
client.changedstate.release()
1588
2415
time2 = datetime.datetime.now()
1589
2416
if (time2 - time) >= delay:
1599
2426
break
1600
2427
else:
1601
2428
delay -= time2 - time
1602
1603
sent_size = 0
1604
while sent_size < len(client.secret):
1605
try:
1606
sent = session.send(client.secret[sent_size:])
1607
except gnutls.errors.GNUTLSError as error:
1608
logger.warning("gnutls send failed")
1609
return
1610
logger.debug("Sent: %d, remaining: %d",
1611
sent, len(client.secret)
1612
- (sent_size + sent))
1613
sent_size += sent
1614
2429
2430
try:
2431
session.send(client.secret)
2432
except gnutls.Error as error:
2433
logger.warning("gnutls send failed",
2434
exc_info=error)
2435
return
2436
1615
2437
logger.info("Sending secret to %s", client.name)
1616
2438
# bump the timeout using extended_timeout
1617
2439
client.bump_timeout(client.extended_timeout)
1618
2440
if self.server.use_dbus:
1619
2441
# Emit D-Bus signal
1620
2442
client.GotSecret()
1621
2443
1622
2444
finally:
1623
2445
if approval_required:
1624
2446
client.approvals_pending -= 1
1625
2447
try:
1626
2448
session.bye()
1627
except gnutls.errors.GNUTLSError as error:
1628
logger.warning("GnuTLS bye failed")
1629
2449
except gnutls.Error as error:
2450
logger.warning("GnuTLS bye failed",
2451
exc_info=error)
2452
1630
2453
@staticmethod
1631
2454
def peer_certificate(session):
1632
"Return the peer's OpenPGP certificate as a bytestring"
1633
# If not an OpenPGP certificate...
1634
if (gnutls.library.functions
1635
.gnutls_certificate_type_get(session._c_object)
1636
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1637
# ...do the normal thing
1638
return session.peer_certificate
2455
"Return the peer's certificate as a bytestring"
2456
try:
2457
cert_type = gnutls.certificate_type_get2(
2458
session, gnutls.CTYPE_PEERS)
2459
except AttributeError:
2460
cert_type = gnutls.certificate_type_get(session)
2461
if gnutls.has_rawpk:
2462
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2463
else:
2464
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2465
# If not a valid certificate type...
2466
if cert_type not in valid_cert_types:
2467
logger.info("Cert type %r not in %r", cert_type,
2468
valid_cert_types)
2469
# ...return invalid data
2470
return b""
1639
2471
list_size = ctypes.c_uint(1)
1640
cert_list = (gnutls.library.functions
1641
.gnutls_certificate_get_peers
1642
(session._c_object, ctypes.byref(list_size)))
2472
cert_list = (gnutls.certificate_get_peers
2473
(session, ctypes.byref(list_size)))
1643
2474
if not bool(cert_list) and list_size.value != 0:
1644
raise gnutls.errors.GNUTLSError("error getting peer"
1645
" certificate")
2475
raise gnutls.Error("error getting peer certificate")
1646
2476
if list_size.value == 0:
1647
2477
return None
1648
2478
cert = cert_list[0]
1649
2479
return ctypes.string_at(cert.data, cert.size)
1650
2480
2481
@staticmethod
2482
def key_id(certificate):
2483
"Convert a certificate bytestring to a hexdigit key ID"
2484
# New GnuTLS "datum" with the public key
2485
datum = gnutls.datum_t(
2486
ctypes.cast(ctypes.c_char_p(certificate),
2487
ctypes.POINTER(ctypes.c_ubyte)),
2488
ctypes.c_uint(len(certificate)))
2489
# XXX all these need to be created in the gnutls "module"
2490
# New empty GnuTLS certificate
2491
pubkey = gnutls.pubkey_t()
2492
gnutls.pubkey_init(ctypes.byref(pubkey))
2493
# Import the raw public key into the certificate
2494
gnutls.pubkey_import(pubkey,
2495
ctypes.byref(datum),
2496
gnutls.X509_FMT_DER)
2497
# New buffer for the key ID
2498
buf = ctypes.create_string_buffer(32)
2499
buf_len = ctypes.c_size_t(len(buf))
2500
# Get the key ID from the raw public key into the buffer
2501
gnutls.pubkey_get_key_id(
2502
pubkey,
2503
gnutls.KEYID_USE_SHA256,
2504
ctypes.cast(ctypes.byref(buf),
2505
ctypes.POINTER(ctypes.c_ubyte)),
2506
ctypes.byref(buf_len))
2507
# Deinit the certificate
2508
gnutls.pubkey_deinit(pubkey)
2509
2510
# Convert the buffer to a Python bytestring
2511
key_id = ctypes.string_at(buf, buf_len.value)
2512
# Convert the bytestring to hexadecimal notation
2513
hex_key_id = binascii.hexlify(key_id).upper()
2514
return hex_key_id
2515
1651
2516
@staticmethod
1652
2517
def fingerprint(openpgp):
1653
2518
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1654
2519
# New GnuTLS "datum" with the OpenPGP public key
1655
datum = (gnutls.library.types
1656
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1657
ctypes.POINTER
1658
(ctypes.c_ubyte)),
1659
ctypes.c_uint(len(openpgp))))
2520
datum = gnutls.datum_t(
2521
ctypes.cast(ctypes.c_char_p(openpgp),
2522
ctypes.POINTER(ctypes.c_ubyte)),
2523
ctypes.c_uint(len(openpgp)))
1660
2524
# New empty GnuTLS certificate
1661
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1662
(gnutls.library.functions
1663
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2525
crt = gnutls.openpgp_crt_t()
2526
gnutls.openpgp_crt_init(ctypes.byref(crt))
1664
2527
# Import the OpenPGP public key into the certificate
1665
(gnutls.library.functions
1666
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1667
gnutls.library.constants
1668
.GNUTLS_OPENPGP_FMT_RAW))
2528
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2529
gnutls.OPENPGP_FMT_RAW)
1669
2530
# Verify the self signature in the key
1670
2531
crtverify = ctypes.c_uint()
1671
(gnutls.library.functions
1672
.gnutls_openpgp_crt_verify_self(crt, 0,
1673
ctypes.byref(crtverify)))
2532
gnutls.openpgp_crt_verify_self(crt, 0,
2533
ctypes.byref(crtverify))
1674
2534
if crtverify.value != 0:
1675
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1676
raise (gnutls.errors.CertificateSecurityError
1677
("Verify failed"))
2535
gnutls.openpgp_crt_deinit(crt)
2536
raise gnutls.CertificateSecurityError(code
2537
=crtverify.value)
1678
2538
# New buffer for the fingerprint
1679
2539
buf = ctypes.create_string_buffer(20)
1680
2540
buf_len = ctypes.c_size_t()
1681
2541
# Get the fingerprint from the certificate into the buffer
1682
(gnutls.library.functions
1683
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1684
ctypes.byref(buf_len)))
2542
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2543
ctypes.byref(buf_len))
1685
2544
# Deinit the certificate
1686
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2545
gnutls.openpgp_crt_deinit(crt)
1687
2546
# Convert the buffer to a Python bytestring
1688
2547
fpr = ctypes.string_at(buf, buf_len.value)
1689
2548
# Convert the bytestring to hexadecimal notation
1691
2550
return hex_fpr
1692
2551
1693
2552
1694
class MultiprocessingMixIn(object):
2553
class MultiprocessingMixIn:
1695
2554
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2555
1696
2556
def sub_process_main(self, request, address):
1697
2557
try:
1698
2558
self.finish_request(request, address)
1699
2559
except Exception:
1700
2560
self.handle_error(request, address)
1701
2561
self.close_request(request)
1702
2562
1703
2563
def process_request(self, request, address):
1704
2564
"""Start a new process to process the request."""
1705
proc = multiprocessing.Process(target = self.sub_process_main,
1706
args = (request,
1707
address))
2565
proc = multiprocessing.Process(target=self.sub_process_main,
2566
args=(request, address))
1708
2567
proc.start()
1709
2568
return proc
1710
2569
1711
2570
1712
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2571
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1713
2572
""" adds a pipe to the MixIn """
2573
1714
2574
def process_request(self, request, client_address):
1715
2575
"""Overrides and wraps the original process_request().
1716
2576
1717
2577
This function creates a new pipe in self.pipe
1718
2578
"""
1719
2579
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1720
2580
1721
2581
proc = MultiprocessingMixIn.process_request(self, request,
1722
2582
client_address)
1723
2583
self.child_pipe.close()
1724
2584
self.add_pipe(parent_pipe, proc)
1725
2585
1726
2586
def add_pipe(self, parent_pipe, proc):
1727
2587
"""Dummy function; override as necessary"""
1728
raise NotImplementedError
2588
raise NotImplementedError()
1729
2589
1730
2590
1731
2591
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1732
socketserver.TCPServer, object):
1733
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1734
2592
socketserver.TCPServer):
2593
"""IPv6-capable TCP server. Accepts None as address and/or port
2594
1735
2595
Attributes:
1736
2596
enabled: Boolean; whether this server is activated yet
1737
2597
interface: None or a network interface name (string)
1738
2598
use_ipv6: Boolean; to use IPv6 or not
1739
2599
"""
2600
1740
2601
def __init__(self, server_address, RequestHandlerClass,
1741
interface=None, use_ipv6=True):
2602
interface=None,
2603
use_ipv6=True,
2604
socketfd=None):
2605
"""If socketfd is set, use that file descriptor instead of
2606
creating a new one with socket.socket().
2607
"""
1742
2608
self.interface = interface
1743
2609
if use_ipv6:
1744
2610
self.address_family = socket.AF_INET6
2611
if socketfd is not None:
2612
# Save the file descriptor
2613
self.socketfd = socketfd
2614
# Save the original socket.socket() function
2615
self.socket_socket = socket.socket
2616
2617
# To implement --socket, we monkey patch socket.socket.
2618
#
2619
# (When socketserver.TCPServer is a new-style class, we
2620
# could make self.socket into a property instead of monkey
2621
# patching socket.socket.)
2622
#
2623
# Create a one-time-only replacement for socket.socket()
2624
@functools.wraps(socket.socket)
2625
def socket_wrapper(*args, **kwargs):
2626
# Restore original function so subsequent calls are
2627
# not affected.
2628
socket.socket = self.socket_socket
2629
del self.socket_socket
2630
# This time only, return a new socket object from the
2631
# saved file descriptor.
2632
return socket.fromfd(self.socketfd, *args, **kwargs)
2633
# Replace socket.socket() function with wrapper
2634
socket.socket = socket_wrapper
2635
# The socketserver.TCPServer.__init__ will call
2636
# socket.socket(), which might be our replacement,
2637
# socket_wrapper(), if socketfd was set.
1745
2638
socketserver.TCPServer.__init__(self, server_address,
1746
2639
RequestHandlerClass)
2640
1747
2641
def server_bind(self):
1748
2642
"""This overrides the normal server_bind() function
1749
2643
to bind to an interface if one was specified, and also NOT to
1750
2644
bind to an address or port if they were not specified."""
2645
global SO_BINDTODEVICE
1751
2646
if self.interface is not None:
1752
2647
if SO_BINDTODEVICE is None:
1753
logger.error("SO_BINDTODEVICE does not exist;"
1754
" cannot bind to interface %s",
1755
self.interface)
1756
else:
1757
try:
1758
self.socket.setsockopt(socket.SOL_SOCKET,
1759
SO_BINDTODEVICE,
1760
str(self.interface
1761
+ '\0'))
1762
except socket.error as error:
1763
if error[0] == errno.EPERM:
1764
logger.error("No permission to"
1765
" bind to interface %s",
1766
self.interface)
1767
elif error[0] == errno.ENOPROTOOPT:
1768
logger.error("SO_BINDTODEVICE not available;"
1769
" cannot bind to interface %s",
1770
self.interface)
1771
else:
1772
raise
2648
# Fall back to a hard-coded value which seems to be
2649
# common enough.
2650
logger.warning("SO_BINDTODEVICE not found, trying 25")
2651
SO_BINDTODEVICE = 25
2652
try:
2653
self.socket.setsockopt(
2654
socket.SOL_SOCKET, SO_BINDTODEVICE,
2655
(self.interface + "\0").encode("utf-8"))
2656
except socket.error as error:
2657
if error.errno == errno.EPERM:
2658
logger.error("No permission to bind to"
2659
" interface %s", self.interface)
2660
elif error.errno == errno.ENOPROTOOPT:
2661
logger.error("SO_BINDTODEVICE not available;"
2662
" cannot bind to interface %s",
2663
self.interface)
2664
elif error.errno == errno.ENODEV:
2665
logger.error("Interface %s does not exist,"
2666
" cannot bind", self.interface)
2667
else:
2668
raise
1773
2669
# Only bind(2) the socket if we really need to.
1774
2670
if self.server_address[0] or self.server_address[1]:
2671
if self.server_address[1]:
2672
self.allow_reuse_address = True
1775
2673
if not self.server_address[0]:
1776
2674
if self.address_family == socket.AF_INET6:
1777
any_address = "::" # in6addr_any
2675
any_address = "::" # in6addr_any
1778
2676
else:
1779
any_address = socket.INADDR_ANY
2677
any_address = "0.0.0.0" # INADDR_ANY
1780
2678
self.server_address = (any_address,
1781
2679
self.server_address[1])
1782
2680
elif not self.server_address[1]:
1783
self.server_address = (self.server_address[0],
1784
0)
2681
self.server_address = (self.server_address[0], 0)
1785
2682
# if self.interface:
1786
2683
# self.server_address = (self.server_address[0],
1787
2684
# 0, # port
1793
2690
1794
2691
class MandosServer(IPv6_TCPServer):
1795
2692
"""Mandos server.
1796
2693
1797
2694
Attributes:
1798
2695
clients: set of Client objects
1799
2696
gnutls_priority GnuTLS priority string
1800
2697
use_dbus: Boolean; to emit D-Bus signals or not
1801
1802
Assumes a gobject.MainLoop event loop.
2698
2699
Assumes a GLib.MainLoop event loop.
1803
2700
"""
2701
1804
2702
def __init__(self, server_address, RequestHandlerClass,
1805
interface=None, use_ipv6=True, clients=None,
1806
gnutls_priority=None, use_dbus=True):
2703
interface=None,
2704
use_ipv6=True,
2705
clients=None,
2706
gnutls_priority=None,
2707
use_dbus=True,
2708
socketfd=None):
1807
2709
self.enabled = False
1808
2710
self.clients = clients
1809
2711
if self.clients is None:
1812
2714
self.gnutls_priority = gnutls_priority
1813
2715
IPv6_TCPServer.__init__(self, server_address,
1814
2716
RequestHandlerClass,
1815
interface = interface,
1816
use_ipv6 = use_ipv6)
2717
interface=interface,
2718
use_ipv6=use_ipv6,
2719
socketfd=socketfd)
2720
1817
2721
def server_activate(self):
1818
2722
if self.enabled:
1819
2723
return socketserver.TCPServer.server_activate(self)
1820
2724
1821
2725
def enable(self):
1822
2726
self.enabled = True
1823
2727
1824
2728
def add_pipe(self, parent_pipe, proc):
1825
2729
# Call "handle_ipc" for both data and EOF events
1826
gobject.io_add_watch(parent_pipe.fileno(),
1827
gobject.IO_IN | gobject.IO_HUP,
1828
functools.partial(self.handle_ipc,
1829
parent_pipe =
1830
parent_pipe,
1831
proc = proc))
1832
1833
def handle_ipc(self, source, condition, parent_pipe=None,
1834
proc = None, client_object=None):
1835
condition_names = {
1836
gobject.IO_IN: "IN", # There is data to read.
1837
gobject.IO_OUT: "OUT", # Data can be written (without
1838
# blocking).
1839
gobject.IO_PRI: "PRI", # There is urgent data to read.
1840
gobject.IO_ERR: "ERR", # Error condition.
1841
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1842
# broken, usually for pipes and
1843
# sockets).
1844
}
1845
conditions_string = ' | '.join(name
1846
for cond, name in
1847
condition_names.iteritems()
1848
if cond & condition)
2730
GLib.io_add_watch(
2731
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2732
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2733
functools.partial(self.handle_ipc,
2734
parent_pipe=parent_pipe,
2735
proc=proc))
2736
2737
def handle_ipc(self, source, condition,
2738
parent_pipe=None,
2739
proc=None,
2740
client_object=None):
1849
2741
# error, or the other end of multiprocessing.Pipe has closed
1850
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2742
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1851
2743
# Wait for other process to exit
1852
2744
proc.join()
1853
2745
return False
1854
2746
1855
2747
# Read a request from the child
1856
2748
request = parent_pipe.recv()
1857
2749
command = request[0]
1858
1859
if command == 'init':
1860
fpr = request[1]
1861
address = request[2]
1862
1863
for c in self.clients.itervalues():
1864
if c.fingerprint == fpr:
2750
2751
if command == "init":
2752
key_id = request[1].decode("ascii")
2753
fpr = request[2].decode("ascii")
2754
address = request[3]
2755
2756
for c in self.clients.values():
2757
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2758
"27AE41E4649B934CA495991B7852B855"):
2759
continue
2760
if key_id and c.key_id == key_id:
2761
client = c
2762
break
2763
if fpr and c.fingerprint == fpr:
1865
2764
client = c
1866
2765
break
1867
2766
else:
1868
logger.info("Client not found for fingerprint: %s, ad"
1869
"dress: %s", fpr, address)
2767
logger.info("Client not found for key ID: %s, address"
2768
": %s", key_id or fpr, address)
1870
2769
if self.use_dbus:
1871
2770
# Emit D-Bus signal
1872
mandos_dbus_service.ClientNotFound(fpr,
2771
mandos_dbus_service.ClientNotFound(key_id or fpr,
1873
2772
address[0])
1874
2773
parent_pipe.send(False)
1875
2774
return False
1876
1877
gobject.io_add_watch(parent_pipe.fileno(),
1878
gobject.IO_IN | gobject.IO_HUP,
1879
functools.partial(self.handle_ipc,
1880
parent_pipe =
1881
parent_pipe,
1882
proc = proc,
1883
client_object =
1884
client))
2775
2776
GLib.io_add_watch(
2777
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2778
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2779
functools.partial(self.handle_ipc,
2780
parent_pipe=parent_pipe,
2781
proc=proc,
2782
client_object=client))
1885
2783
parent_pipe.send(True)
1886
2784
# remove the old hook in favor of the new above hook on
1887
2785
# same fileno
1888
2786
return False
1889
if command == 'funcall':
2787
if command == "funcall":
1890
2788
funcname = request[1]
1891
2789
args = request[2]
1892
2790
kwargs = request[3]
1893
1894
parent_pipe.send(('data', getattr(client_object,
2791
2792
parent_pipe.send(("data", getattr(client_object,
1895
2793
funcname)(*args,
1896
**kwargs)))
1897
1898
if command == 'getattr':
2794
**kwargs)))
2795
2796
if command == "getattr":
1899
2797
attrname = request[1]
1900
if callable(client_object.__getattribute__(attrname)):
1901
parent_pipe.send(('function',))
2798
if isinstance(client_object.__getattribute__(attrname),
2799
collections.abc.Callable):
2800
parent_pipe.send(("function", ))
1902
2801
else:
1903
parent_pipe.send(('data', client_object
1904
.__getattribute__(attrname)))
1905
1906
if command == 'setattr':
2802
parent_pipe.send((
2803
"data", client_object.__getattribute__(attrname)))
2804
2805
if command == "setattr":
1907
2806
attrname = request[1]
1908
2807
value = request[2]
1909
2808
setattr(client_object, attrname, value)
1910
2809
1911
2810
return True
1912
2811
1913
2812
2813
def rfc3339_duration_to_delta(duration):
2814
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2815
2816
>>> timedelta = datetime.timedelta
2817
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2818
True
2819
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2820
True
2821
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2822
True
2823
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2824
True
2825
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2826
True
2827
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2828
True
2829
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2830
True
2831
>>> del timedelta
2832
"""
2833
2834
# Parsing an RFC 3339 duration with regular expressions is not
2835
# possible - there would have to be multiple places for the same
2836
# values, like seconds. The current code, while more esoteric, is
2837
# cleaner without depending on a parsing library. If Python had a
2838
# built-in library for parsing we would use it, but we'd like to
2839
# avoid excessive use of external libraries.
2840
2841
# New type for defining tokens, syntax, and semantics all-in-one
2842
Token = collections.namedtuple("Token", (
2843
"regexp", # To match token; if "value" is not None, must have
2844
# a "group" containing digits
2845
"value", # datetime.timedelta or None
2846
"followers")) # Tokens valid after this token
2847
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2848
# the "duration" ABNF definition in RFC 3339, Appendix A.
2849
token_end = Token(re.compile(r"$"), None, frozenset())
2850
token_second = Token(re.compile(r"(\d+)S"),
2851
datetime.timedelta(seconds=1),
2852
frozenset((token_end, )))
2853
token_minute = Token(re.compile(r"(\d+)M"),
2854
datetime.timedelta(minutes=1),
2855
frozenset((token_second, token_end)))
2856
token_hour = Token(re.compile(r"(\d+)H"),
2857
datetime.timedelta(hours=1),
2858
frozenset((token_minute, token_end)))
2859
token_time = Token(re.compile(r"T"),
2860
None,
2861
frozenset((token_hour, token_minute,
2862
token_second)))
2863
token_day = Token(re.compile(r"(\d+)D"),
2864
datetime.timedelta(days=1),
2865
frozenset((token_time, token_end)))
2866
token_month = Token(re.compile(r"(\d+)M"),
2867
datetime.timedelta(weeks=4),
2868
frozenset((token_day, token_end)))
2869
token_year = Token(re.compile(r"(\d+)Y"),
2870
datetime.timedelta(weeks=52),
2871
frozenset((token_month, token_end)))
2872
token_week = Token(re.compile(r"(\d+)W"),
2873
datetime.timedelta(weeks=1),
2874
frozenset((token_end, )))
2875
token_duration = Token(re.compile(r"P"), None,
2876
frozenset((token_year, token_month,
2877
token_day, token_time,
2878
token_week)))
2879
# Define starting values:
2880
# Value so far
2881
value = datetime.timedelta()
2882
found_token = None
2883
# Following valid tokens
2884
followers = frozenset((token_duration, ))
2885
# String left to parse
2886
s = duration
2887
# Loop until end token is found
2888
while found_token is not token_end:
2889
# Search for any currently valid tokens
2890
for token in followers:
2891
match = token.regexp.match(s)
2892
if match is not None:
2893
# Token found
2894
if token.value is not None:
2895
# Value found, parse digits
2896
factor = int(match.group(1), 10)
2897
# Add to value so far
2898
value += factor * token.value
2899
# Strip token from string
2900
s = token.regexp.sub("", s, 1)
2901
# Go to found token
2902
found_token = token
2903
# Set valid next tokens
2904
followers = found_token.followers
2905
break
2906
else:
2907
# No currently valid tokens were found
2908
raise ValueError("Invalid RFC 3339 duration: {!r}"
2909
.format(duration))
2910
# End token found
2911
return value
2912
2913
1914
2914
def string_to_delta(interval):
1915
2915
"""Parse a string and return a datetime.timedelta
1916
1917
>>> string_to_delta('7d')
1918
datetime.timedelta(7)
1919
>>> string_to_delta('60s')
1920
datetime.timedelta(0, 60)
1921
>>> string_to_delta('60m')
1922
datetime.timedelta(0, 3600)
1923
>>> string_to_delta('24h')
1924
datetime.timedelta(1)
1925
>>> string_to_delta('1w')
1926
datetime.timedelta(7)
1927
>>> string_to_delta('5m 30s')
1928
datetime.timedelta(0, 330)
2916
2917
>>> string_to_delta("7d") == datetime.timedelta(7)
2918
True
2919
>>> string_to_delta("60s") == datetime.timedelta(0, 60)
2920
True
2921
>>> string_to_delta("60m") == datetime.timedelta(0, 3600)
2922
True
2923
>>> string_to_delta("24h") == datetime.timedelta(1)
2924
True
2925
>>> string_to_delta("1w") == datetime.timedelta(7)
2926
True
2927
>>> string_to_delta("5m 30s") == datetime.timedelta(0, 330)
2928
True
1929
2929
"""
2930
2931
try:
2932
return rfc3339_duration_to_delta(interval)
2933
except ValueError:
2934
pass
2935
1930
2936
timevalue = datetime.timedelta(0)
1931
2937
for s in interval.split():
1932
2938
try:
1933
suffix = unicode(s[-1])
2939
suffix = s[-1]
1934
2940
value = int(s[:-1])
1935
2941
if suffix == "d":
1936
2942
delta = datetime.timedelta(value)
1943
2949
elif suffix == "w":
1944
2950
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1945
2951
else:
1946
raise ValueError("Unknown suffix %r" % suffix)
1947
except (ValueError, IndexError) as e:
2952
raise ValueError("Unknown suffix {!r}".format(suffix))
2953
except IndexError as e:
1948
2954
raise ValueError(*(e.args))
1949
2955
timevalue += delta
1950
2956
return timevalue
1951
2957
1952
2958
1953
def daemon(nochdir = False, noclose = False):
2959
def daemon(nochdir=False, noclose=False):
1954
2960
"""See daemon(3). Standard BSD Unix function.
1955
2961
1956
2962
This should really exist as os.daemon, but it doesn't (yet)."""
1957
2963
if os.fork():
1958
2964
sys.exit()
1963
2969
sys.exit()
1964
2970
if not noclose:
1965
2971
# Close all standard open file descriptors
1966
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2972
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1967
2973
if not stat.S_ISCHR(os.fstat(null).st_mode):
1968
2974
raise OSError(errno.ENODEV,
1969
"%s not a character device"
1970
% os.path.devnull)
2975
"{} not a character device"
2976
.format(os.devnull))
1971
2977
os.dup2(null, sys.stdin.fileno())
1972
2978
os.dup2(null, sys.stdout.fileno())
1973
2979
os.dup2(null, sys.stderr.fileno())
1976
2982
1977
2983
1978
2984
def main():
1979
2985
1980
2986
##################################################################
1981
2987
# Parsing of options, both command line and config file
1982
2988
1983
2989
parser = argparse.ArgumentParser()
1984
2990
parser.add_argument("-v", "--version", action="version",
1985
version = "%%(prog)s %s" % version,
2991
version="%(prog)s {}".format(version),
1986
2992
help="show version number and exit")
1987
2993
parser.add_argument("-i", "--interface", metavar="IF",
1988
2994
help="Bind to interface IF")
1994
3000
help="Run self-test")
1995
3001
parser.add_argument("--debug", action="store_true",
1996
3002
help="Debug mode; run in foreground and log"
1997
" to terminal")
3003
" to terminal", default=None)
1998
3004
parser.add_argument("--debuglevel", metavar="LEVEL",
1999
3005
help="Debug level for stdout output")
2000
3006
parser.add_argument("--priority", help="GnuTLS"
2007
3013
" files")
2008
3014
parser.add_argument("--no-dbus", action="store_false",
2009
3015
dest="use_dbus", help="Do not provide D-Bus"
2010
" system bus interface")
3016
" system bus interface", default=None)
2011
3017
parser.add_argument("--no-ipv6", action="store_false",
2012
dest="use_ipv6", help="Do not use IPv6")
3018
dest="use_ipv6", help="Do not use IPv6",
3019
default=None)
2013
3020
parser.add_argument("--no-restore", action="store_false",
2014
3021
dest="restore", help="Do not restore stored"
2015
" state")
3022
" state", default=None)
3023
parser.add_argument("--socket", type=int,
3024
help="Specify a file descriptor to a network"
3025
" socket to use instead of creating one")
2016
3026
parser.add_argument("--statedir", metavar="DIR",
2017
3027
help="Directory to save/restore state in")
2018
3028
parser.add_argument("--foreground", action="store_true",
3029
help="Run in foreground", default=None)
3030
parser.add_argument("--no-zeroconf", action="store_false",
3031
dest="zeroconf", help="Do not use Zeroconf",
3032
default=None)
3033
2019
3034
options = parser.parse_args()
2020
2021
if options.check:
2022
import doctest
2023
doctest.testmod()
2024
sys.exit()
2025
3035
2026
3036
# Default values for config file for server-global settings
2027
server_defaults = { "interface": "",
2028
"address": "",
2029
"port": "",
2030
"debug": "False",
2031
"priority":
2032
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2033
"servicename": "Mandos",
2034
"use_dbus": "True",
2035
"use_ipv6": "True",
2036
"debuglevel": "",
2037
"restore": "True",
2038
"statedir": "/var/lib/mandos"
2039
}
2040
3037
if gnutls.has_rawpk:
3038
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3039
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3040
else:
3041
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3042
":+SIGN-DSA-SHA256")
3043
server_defaults = {"interface": "",
3044
"address": "",
3045
"port": "",
3046
"debug": "False",
3047
"priority": priority,
3048
"servicename": "Mandos",
3049
"use_dbus": "True",
3050
"use_ipv6": "True",
3051
"debuglevel": "",
3052
"restore": "True",
3053
"socket": "",
3054
"statedir": "/var/lib/mandos",
3055
"foreground": "False",
3056
"zeroconf": "True",
3057
}
3058
del priority
3059
2041
3060
# Parse config file for server-global settings
2042
server_config = configparser.SafeConfigParser(server_defaults)
3061
server_config = configparser.ConfigParser(server_defaults)
2043
3062
del server_defaults
2044
server_config.read(os.path.join(options.configdir,
2045
"mandos.conf"))
2046
# Convert the SafeConfigParser object to a dict
3063
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3064
# Convert the ConfigParser object to a dict
2047
3065
server_settings = server_config.defaults()
2048
3066
# Use the appropriate methods on the non-string config options
2049
for option in ("debug", "use_dbus", "use_ipv6"):
3067
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3068
"foreground", "zeroconf"):
2050
3069
server_settings[option] = server_config.getboolean("DEFAULT",
2051
3070
option)
2052
3071
if server_settings["port"]:
2053
3072
server_settings["port"] = server_config.getint("DEFAULT",
2054
3073
"port")
3074
if server_settings["socket"]:
3075
server_settings["socket"] = server_config.getint("DEFAULT",
3076
"socket")
3077
# Later, stdin will, and stdout and stderr might, be dup'ed
3078
# over with an opened os.devnull. But we don't want this to
3079
# happen with a supplied network socket.
3080
if 0 <= server_settings["socket"] <= 2:
3081
server_settings["socket"] = os.dup(server_settings
3082
["socket"])
2055
3083
del server_config
2056
3084
2057
3085
# Override the settings from the config file with command line
2058
3086
# options, if set.
2059
3087
for option in ("interface", "address", "port", "debug",
2060
"priority", "servicename", "configdir",
2061
"use_dbus", "use_ipv6", "debuglevel", "restore",
2062
"statedir"):
3088
"priority", "servicename", "configdir", "use_dbus",
3089
"use_ipv6", "debuglevel", "restore", "statedir",
3090
"socket", "foreground", "zeroconf"):
2063
3091
value = getattr(options, option)
2064
3092
if value is not None:
2065
3093
server_settings[option] = value
2066
3094
del options
2067
3095
# Force all strings to be unicode
2068
3096
for option in server_settings.keys():
2069
if type(server_settings[option]) is str:
2070
server_settings[option] = unicode(server_settings[option])
3097
if isinstance(server_settings[option], bytes):
3098
server_settings[option] = (server_settings[option]
3099
.decode("utf-8"))
3100
# Force all boolean options to be boolean
3101
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3102
"foreground", "zeroconf"):
3103
server_settings[option] = bool(server_settings[option])
3104
# Debug implies foreground
3105
if server_settings["debug"]:
3106
server_settings["foreground"] = True
2071
3107
# Now we have our good server settings in "server_settings"
2072
3108
2073
3109
##################################################################
2074
3110
3111
if (not server_settings["zeroconf"]
3112
and not (server_settings["port"]
3113
or server_settings["socket"] != "")):
3114
parser.error("Needs port or socket to work without Zeroconf")
3115
2075
3116
# For convenience
2076
3117
debug = server_settings["debug"]
2077
3118
debuglevel = server_settings["debuglevel"]
2079
3120
use_ipv6 = server_settings["use_ipv6"]
2080
3121
stored_state_path = os.path.join(server_settings["statedir"],
2081
3122
stored_state_file)
2082
3123
foreground = server_settings["foreground"]
3124
zeroconf = server_settings["zeroconf"]
3125
2083
3126
if debug:
2084
3127
initlogger(debug, logging.DEBUG)
2085
3128
else:
2088
3131
else:
2089
3132
level = getattr(logging, debuglevel.upper())
2090
3133
initlogger(debug, level)
2091
3134
2092
3135
if server_settings["servicename"] != "Mandos":
2093
syslogger.setFormatter(logging.Formatter
2094
('Mandos (%s) [%%(process)d]:'
2095
' %%(levelname)s: %%(message)s'
2096
% server_settings["servicename"]))
2097
3136
syslogger.setFormatter(
3137
logging.Formatter("Mandos ({}) [%(process)d]:"
3138
" %(levelname)s: %(message)s".format(
3139
server_settings["servicename"])))
3140
2098
3141
# Parse config file with clients
2099
client_config = configparser.SafeConfigParser(Client
2100
.client_defaults)
3142
client_config = configparser.ConfigParser(Client.client_defaults)
2101
3143
client_config.read(os.path.join(server_settings["configdir"],
2102
3144
"clients.conf"))
2103
3145
2104
3146
global mandos_dbus_service
2105
3147
mandos_dbus_service = None
2106
2107
tcp_server = MandosServer((server_settings["address"],
2108
server_settings["port"]),
2109
ClientHandler,
2110
interface=(server_settings["interface"]
2111
or None),
2112
use_ipv6=use_ipv6,
2113
gnutls_priority=
2114
server_settings["priority"],
2115
use_dbus=use_dbus)
2116
if not debug:
2117
pidfilename = "/var/run/mandos.pid"
2118
try:
2119
pidfile = open(pidfilename, "w")
2120
except IOError:
2121
logger.error("Could not open file %r", pidfilename)
2122
2123
try:
2124
uid = pwd.getpwnam("_mandos").pw_uid
2125
gid = pwd.getpwnam("_mandos").pw_gid
2126
except KeyError:
2127
try:
2128
uid = pwd.getpwnam("mandos").pw_uid
2129
gid = pwd.getpwnam("mandos").pw_gid
3148
3149
socketfd = None
3150
if server_settings["socket"] != "":
3151
socketfd = server_settings["socket"]
3152
tcp_server = MandosServer(
3153
(server_settings["address"], server_settings["port"]),
3154
ClientHandler,
3155
interface=(server_settings["interface"] or None),
3156
use_ipv6=use_ipv6,
3157
gnutls_priority=server_settings["priority"],
3158
use_dbus=use_dbus,
3159
socketfd=socketfd)
3160
if not foreground:
3161
pidfilename = "/run/mandos.pid"
3162
if not os.path.isdir("/run/."):
3163
pidfilename = "/var/run/mandos.pid"
3164
pidfile = None
3165
try:
3166
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3167
except IOError as e:
3168
logger.error("Could not open file %r", pidfilename,
3169
exc_info=e)
3170
3171
for name, group in (("_mandos", "_mandos"),
3172
("mandos", "mandos"),
3173
("nobody", "nogroup")):
3174
try:
3175
uid = pwd.getpwnam(name).pw_uid
3176
gid = pwd.getpwnam(group).pw_gid
3177
break
2130
3178
except KeyError:
2131
try:
2132
uid = pwd.getpwnam("nobody").pw_uid
2133
gid = pwd.getpwnam("nobody").pw_gid
2134
except KeyError:
2135
uid = 65534
2136
gid = 65534
3179
continue
3180
else:
3181
uid = 65534
3182
gid = 65534
2137
3183
try:
2138
3184
os.setgid(gid)
2139
3185
os.setuid(uid)
3186
if debug:
3187
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3188
gid))
2140
3189
except OSError as error:
2141
if error[0] != errno.EPERM:
2142
raise error
2143
3190
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3191
.format(uid, gid, os.strerror(error.errno)))
3192
if error.errno != errno.EPERM:
3193
raise
3194
2144
3195
if debug:
2145
3196
# Enable all possible GnuTLS debugging
2146
3197
2147
3198
# "Use a log level over 10 to enable all debugging options."
2148
3199
# - GnuTLS manual
2149
gnutls.library.functions.gnutls_global_set_log_level(11)
2150
2151
@gnutls.library.types.gnutls_log_func
3200
gnutls.global_set_log_level(11)
3201
3202
@gnutls.log_func
2152
3203
def debug_gnutls(level, string):
2153
logger.debug("GnuTLS: %s", string[:-1])
2154
2155
(gnutls.library.functions
2156
.gnutls_global_set_log_function(debug_gnutls))
2157
3204
logger.debug("GnuTLS: %s",
3205
string[:-1].decode("utf-8",
3206
errors="replace"))
3207
3208
gnutls.global_set_log_function(debug_gnutls)
3209
2158
3210
# Redirect stdin so all checkers get /dev/null
2159
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3211
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2160
3212
os.dup2(null, sys.stdin.fileno())
2161
3213
if null > 2:
2162
3214
os.close(null)
2163
3215
2164
3216
# Need to fork before connecting to D-Bus
2165
if not debug:
3217
if not foreground:
2166
3218
# Close all input and output, do double fork, etc.
2167
3219
daemon()
2168
2169
gobject.threads_init()
2170
3220
3221
if gi.version_info < (3, 10, 2):
3222
# multiprocessing will use threads, so before we use GLib we
3223
# need to inform GLib that threads will be used.
3224
GLib.threads_init()
3225
2171
3226
global main_loop
2172
3227
# From the Avahi example code
2173
DBusGMainLoop(set_as_default=True )
2174
main_loop = gobject.MainLoop()
3228
DBusGMainLoop(set_as_default=True)
3229
main_loop = GLib.MainLoop()
2175
3230
bus = dbus.SystemBus()
2176
3231
# End of Avahi example code
2177
3232
if use_dbus:
2178
3233
try:
2179
3234
bus_name = dbus.service.BusName("se.recompile.Mandos",
2180
bus, do_not_queue=True)
2181
old_bus_name = (dbus.service.BusName
2182
("se.bsnet.fukt.Mandos", bus,
2183
do_not_queue=True))
2184
except dbus.exceptions.NameExistsException as e:
2185
logger.error(unicode(e) + ", disabling D-Bus")
3235
bus,
3236
do_not_queue=True)
3237
old_bus_name = dbus.service.BusName(
3238
"se.bsnet.fukt.Mandos", bus,
3239
do_not_queue=True)
3240
except dbus.exceptions.DBusException as e:
3241
logger.error("Disabling D-Bus:", exc_info=e)
2186
3242
use_dbus = False
2187
3243
server_settings["use_dbus"] = False
2188
3244
tcp_server.use_dbus = False
2189
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2190
service = AvahiServiceToSyslog(name =
2191
server_settings["servicename"],
2192
servicetype = "_mandos._tcp",
2193
protocol = protocol, bus = bus)
2194
if server_settings["interface"]:
2195
service.interface = (if_nametoindex
2196
(str(server_settings["interface"])))
2197
3245
if zeroconf:
3246
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3247
service = AvahiServiceToSyslog(
3248
name=server_settings["servicename"],
3249
servicetype="_mandos._tcp",
3250
protocol=protocol,
3251
bus=bus)
3252
if server_settings["interface"]:
3253
service.interface = if_nametoindex(
3254
server_settings["interface"].encode("utf-8"))
3255
2198
3256
global multiprocessing_manager
2199
3257
multiprocessing_manager = multiprocessing.Manager()
2200
3258
2201
3259
client_class = Client
2202
3260
if use_dbus:
2203
client_class = functools.partial(ClientDBusTransitional,
2204
bus = bus)
2205
3261
client_class = functools.partial(ClientDBus, bus=bus)
3262
2206
3263
client_settings = Client.config_parser(client_config)
2207
3264
old_client_settings = {}
2208
3265
clients_data = {}
2209
3266
3267
# This is used to redirect stdout and stderr for checker processes
3268
global wnull
3269
wnull = open(os.devnull, "w") # A writable /dev/null
3270
# Only used if server is running in foreground but not in debug
3271
# mode
3272
if debug or not foreground:
3273
wnull.close()
3274
2210
3275
# Get client data and settings from last running state.
2211
3276
if server_settings["restore"]:
2212
3277
try:
2213
3278
with open(stored_state_path, "rb") as stored_state:
2214
clients_data, old_client_settings = (pickle.load
2215
(stored_state))
3279
if sys.version_info.major == 2:
3280
clients_data, old_client_settings = pickle.load(
3281
stored_state)
3282
else:
3283
bytes_clients_data, bytes_old_client_settings = (
3284
pickle.load(stored_state, encoding="bytes"))
3285
# Fix bytes to strings
3286
# clients_data
3287
# .keys()
3288
clients_data = {(key.decode("utf-8")
3289
if isinstance(key, bytes)
3290
else key): value
3291
for key, value in
3292
bytes_clients_data.items()}
3293
del bytes_clients_data
3294
for key in clients_data:
3295
value = {(k.decode("utf-8")
3296
if isinstance(k, bytes) else k): v
3297
for k, v in
3298
clients_data[key].items()}
3299
clients_data[key] = value
3300
# .client_structure
3301
value["client_structure"] = [
3302
(s.decode("utf-8")
3303
if isinstance(s, bytes)
3304
else s) for s in
3305
value["client_structure"]]
3306
# .name, .host, and .checker_command
3307
for k in ("name", "host", "checker_command"):
3308
if isinstance(value[k], bytes):
3309
value[k] = value[k].decode("utf-8")
3310
if "key_id" not in value:
3311
value["key_id"] = ""
3312
elif "fingerprint" not in value:
3313
value["fingerprint"] = ""
3314
# old_client_settings
3315
# .keys()
3316
old_client_settings = {
3317
(key.decode("utf-8")
3318
if isinstance(key, bytes)
3319
else key): value
3320
for key, value in
3321
bytes_old_client_settings.items()}
3322
del bytes_old_client_settings
3323
# .host and .checker_command
3324
for value in old_client_settings.values():
3325
for attribute in ("host", "checker_command"):
3326
if isinstance(value[attribute], bytes):
3327
value[attribute] = (value[attribute]
3328
.decode("utf-8"))
2216
3329
os.remove(stored_state_path)
2217
3330
except IOError as e:
2218
logger.warning("Could not load persistent state: {0}"
2219
.format(e))
2220
if e.errno != errno.ENOENT:
3331
if e.errno == errno.ENOENT:
3332
logger.warning("Could not load persistent state:"
3333
" {}".format(os.strerror(e.errno)))
3334
else:
3335
logger.critical("Could not load persistent state:",
3336
exc_info=e)
2221
3337
raise
2222
3338
except EOFError as e:
2223
3339
logger.warning("Could not load persistent state: "
2224
"EOFError: {0}".format(e))
2225
3340
"EOFError:",
3341
exc_info=e)
3342
2226
3343
with PGPEngine() as pgp:
2227
for client_name, client in clients_data.iteritems():
3344
for client_name, client in clients_data.items():
3345
# Skip removed clients
3346
if client_name not in client_settings:
3347
continue
3348
2228
3349
# Decide which value to use after restoring saved state.
2229
3350
# We have three different values: Old config file,
2230
3351
# new config file, and saved state.
2235
3356
# For each value in new config, check if it
2236
3357
# differs from the old config value (Except for
2237
3358
# the "secret" attribute)
2238
if (name != "secret" and
2239
value != old_client_settings[client_name]
2240
[name]):
3359
if (name != "secret"
3360
and (value !=
3361
old_client_settings[client_name][name])):
2241
3362
client[name] = value
2242
3363
except KeyError:
2243
3364
pass
2244
3365
2245
3366
# Clients who has passed its expire date can still be
2246
# enabled if its last checker was successful. Clients
3367
# enabled if its last checker was successful. A Client
2247
3368
# whose checker succeeded before we stored its state is
2248
3369
# assumed to have successfully run all checkers during
2249
3370
# downtime.
2251
3372
if datetime.datetime.utcnow() >= client["expires"]:
2252
3373
if not client["last_checked_ok"]:
2253
3374
logger.warning(
2254
"disabling client {0} - Client never "
2255
"performed a successful checker"
2256
.format(client_name))
3375
"disabling client {} - Client never "
3376
"performed a successful checker".format(
3377
client_name))
2257
3378
client["enabled"] = False
2258
3379
elif client["last_checker_status"] != 0:
2259
3380
logger.warning(
2260
"disabling client {0} - Client "
2261
"last checker failed with error code {1}"
2262
.format(client_name,
2263
client["last_checker_status"]))
3381
"disabling client {} - Client last"
3382
" checker failed with error code"
3383
" {}".format(
3384
client_name,
3385
client["last_checker_status"]))
2264
3386
client["enabled"] = False
2265
3387
else:
2266
client["expires"] = (datetime.datetime
2267
.utcnow()
2268
+ client["timeout"])
3388
client["expires"] = (
3389
datetime.datetime.utcnow()
3390
+ client["timeout"])
2269
3391
logger.debug("Last checker succeeded,"
2270
" keeping {0} enabled"
2271
.format(client_name))
3392
" keeping {} enabled".format(
3393
client_name))
2272
3394
try:
2273
client["secret"] = (
2274
pgp.decrypt(client["encrypted_secret"],
2275
client_settings[client_name]
2276
["secret"]))
3395
client["secret"] = pgp.decrypt(
3396
client["encrypted_secret"],
3397
client_settings[client_name]["secret"])
2277
3398
except PGPError:
2278
3399
# If decryption fails, we use secret from new settings
2279
logger.debug("Failed to decrypt {0} old secret"
2280
.format(client_name))
2281
client["secret"] = (
2282
client_settings[client_name]["secret"])
3400
logger.debug("Failed to decrypt {} old secret".format(
3401
client_name))
3402
client["secret"] = (client_settings[client_name]
3403
["secret"])
2283
3404
2284
2285
3405
# Add/remove clients based on new changes made to config
2286
3406
for client_name in (set(old_client_settings)
2287
3407
- set(client_settings)):
2291
3411
clients_data[client_name] = client_settings[client_name]
2292
3412
2293
3413
# Create all client objects
2294
for client_name, client in clients_data.iteritems():
3414
for client_name, client in clients_data.items():
2295
3415
tcp_server.clients[client_name] = client_class(
2296
name = client_name, settings = client)
2297
3416
name=client_name,
3417
settings=client,
3418
server_settings=server_settings)
3419
2298
3420
if not tcp_server.clients:
2299
3421
logger.warning("No clients defined")
2300
2301
if not debug:
2302
try:
2303
with pidfile:
2304
pid = os.getpid()
2305
pidfile.write(str(pid) + "\n".encode("utf-8"))
2306
del pidfile
2307
except IOError:
2308
logger.error("Could not write to file %r with PID %d",
2309
pidfilename, pid)
2310
except NameError:
2311
# "pidfile" was never created
2312
pass
3422
3423
if not foreground:
3424
if pidfile is not None:
3425
pid = os.getpid()
3426
try:
3427
with pidfile:
3428
print(pid, file=pidfile)
3429
except IOError:
3430
logger.error("Could not write to file %r with PID %d",
3431
pidfilename, pid)
3432
del pidfile
2313
3433
del pidfilename
2314
signal.signal(signal.SIGINT, signal.SIG_IGN)
2315
2316
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2317
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2318
3434
3435
for termsig in (signal.SIGHUP, signal.SIGTERM):
3436
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3437
lambda: main_loop.quit() and False)
3438
2319
3439
if use_dbus:
2320
class MandosDBusService(dbus.service.Object):
3440
3441
@alternate_dbus_interfaces(
3442
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3443
class MandosDBusService(DBusObjectWithObjectManager):
2321
3444
"""A D-Bus proxy object"""
3445
2322
3446
def __init__(self):
2323
3447
dbus.service.Object.__init__(self, bus, "/")
3448
2324
3449
_interface = "se.recompile.Mandos"
2325
3450
2326
3451
@dbus.service.signal(_interface, signature="o")
2327
3452
def ClientAdded(self, objpath):
2328
3453
"D-Bus signal"
2329
3454
pass
2330
3455
2331
3456
@dbus.service.signal(_interface, signature="ss")
2332
def ClientNotFound(self, fingerprint, address):
3457
def ClientNotFound(self, key_id, address):
2333
3458
"D-Bus signal"
2334
3459
pass
2335
3460
3461
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3462
"true"})
2336
3463
@dbus.service.signal(_interface, signature="os")
2337
3464
def ClientRemoved(self, objpath, name):
2338
3465
"D-Bus signal"
2339
3466
pass
2340
3467
3468
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3469
"true"})
2341
3470
@dbus.service.method(_interface, out_signature="ao")
2342
3471
def GetAllClients(self):
2343
3472
"D-Bus method"
2344
return dbus.Array(c.dbus_object_path
2345
for c in
2346
tcp_server.clients.itervalues())
2347
3473
return dbus.Array(c.dbus_object_path for c in
3474
tcp_server.clients.values())
3475
3476
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3477
"true"})
2348
3478
@dbus.service.method(_interface,
2349
3479
out_signature="a{oa{sv}}")
2350
3480
def GetAllClientsWithProperties(self):
2351
3481
"D-Bus method"
2352
3482
return dbus.Dictionary(
2353
((c.dbus_object_path, c.GetAll(""))
2354
for c in tcp_server.clients.itervalues()),
3483
{c.dbus_object_path: c.GetAll(
3484
"se.recompile.Mandos.Client")
3485
for c in tcp_server.clients.values()},
2355
3486
signature="oa{sv}")
2356
3487
2357
3488
@dbus.service.method(_interface, in_signature="o")
2358
3489
def RemoveClient(self, object_path):
2359
3490
"D-Bus method"
2360
for c in tcp_server.clients.itervalues():
3491
for c in tcp_server.clients.values():
2361
3492
if c.dbus_object_path == object_path:
2362
3493
del tcp_server.clients[c.name]
2363
3494
c.remove_from_connection()
2364
# Don't signal anything except ClientRemoved
3495
# Don't signal the disabling
2365
3496
c.disable(quiet=True)
2366
# Emit D-Bus signal
2367
self.ClientRemoved(object_path, c.name)
3497
# Emit D-Bus signal for removal
3498
self.client_removed_signal(c)
2368
3499
return
2369
3500
raise KeyError(object_path)
2370
3501
2371
3502
del _interface
2372
2373
class MandosDBusServiceTransitional(MandosDBusService):
2374
__metaclass__ = AlternateDBusNamesMetaclass
2375
mandos_dbus_service = MandosDBusServiceTransitional()
2376
3503
3504
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3505
out_signature="a{oa{sa{sv}}}")
3506
def GetManagedObjects(self):
3507
"""D-Bus method"""
3508
return dbus.Dictionary(
3509
{client.dbus_object_path:
3510
dbus.Dictionary(
3511
{interface: client.GetAll(interface)
3512
for interface in
3513
client._get_all_interface_names()})
3514
for client in tcp_server.clients.values()})
3515
3516
def client_added_signal(self, client):
3517
"""Send the new standard signal and the old signal"""
3518
if use_dbus:
3519
# New standard signal
3520
self.InterfacesAdded(
3521
client.dbus_object_path,
3522
dbus.Dictionary(
3523
{interface: client.GetAll(interface)
3524
for interface in
3525
client._get_all_interface_names()}))
3526
# Old signal
3527
self.ClientAdded(client.dbus_object_path)
3528
3529
def client_removed_signal(self, client):
3530
"""Send the new standard signal and the old signal"""
3531
if use_dbus:
3532
# New standard signal
3533
self.InterfacesRemoved(
3534
client.dbus_object_path,
3535
client._get_all_interface_names())
3536
# Old signal
3537
self.ClientRemoved(client.dbus_object_path,
3538
client.name)
3539
3540
mandos_dbus_service = MandosDBusService()
3541
3542
# Save modules to variables to exempt the modules from being
3543
# unloaded before the function registered with atexit() is run.
3544
mp = multiprocessing
3545
wn = wnull
3546
2377
3547
def cleanup():
2378
3548
"Cleanup function; run on exit"
2379
service.cleanup()
2380
2381
multiprocessing.active_children()
3549
if zeroconf:
3550
service.cleanup()
3551
3552
mp.active_children()
3553
wn.close()
2382
3554
if not (tcp_server.clients or client_settings):
2383
3555
return
2384
3556
2385
3557
# Store client before exiting. Secrets are encrypted with key
2386
3558
# based on what config file has. If config file is
2387
3559
# removed/edited, old secret will thus be unrecovable.
2388
3560
clients = {}
2389
3561
with PGPEngine() as pgp:
2390
for client in tcp_server.clients.itervalues():
3562
for client in tcp_server.clients.values():
2391
3563
key = client_settings[client.name]["secret"]
2392
3564
client.encrypted_secret = pgp.encrypt(client.secret,
2393
3565
key)
2394
3566
client_dict = {}
2395
3567
2396
3568
# A list of attributes that can not be pickled
2397
3569
# + secret.
2398
exclude = set(("bus", "changedstate", "secret",
2399
"checker"))
2400
for name, typ in (inspect.getmembers
2401
(dbus.service.Object)):
3570
exclude = {"bus", "changedstate", "secret",
3571
"checker", "server_settings"}
3572
for name, typ in inspect.getmembers(dbus.service
3573
.Object):
2402
3574
exclude.add(name)
2403
3575
2404
3576
client_dict["encrypted_secret"] = (client
2405
3577
.encrypted_secret)
2406
3578
for attr in client.client_structure:
2407
3579
if attr not in exclude:
2408
3580
client_dict[attr] = getattr(client, attr)
2409
3581
2410
3582
clients[client.name] = client_dict
2411
3583
del client_settings[client.name]["secret"]
2412
3584
2413
3585
try:
2414
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2415
prefix="clients-",
2416
dir=os.path.dirname
2417
(stored_state_path))
2418
with os.fdopen(tempfd, "wb") as stored_state:
2419
pickle.dump((clients, client_settings), stored_state)
3586
with tempfile.NamedTemporaryFile(
3587
mode="wb",
3588
suffix=".pickle",
3589
prefix="clients-",
3590
dir=os.path.dirname(stored_state_path),
3591
delete=False) as stored_state:
3592
pickle.dump((clients, client_settings), stored_state,
3593
protocol=2)
3594
tempname = stored_state.name
2420
3595
os.rename(tempname, stored_state_path)
2421
3596
except (IOError, OSError) as e:
2422
logger.warning("Could not save persistent state: {0}"
2423
.format(e))
2424
3597
if not debug:
2425
3598
try:
2426
3599
os.remove(tempname)
2427
3600
except NameError:
2428
3601
pass
2429
if e.errno not in set((errno.ENOENT, errno.EACCES,
2430
errno.EEXIST)):
2431
raise e
2432
3602
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3603
logger.warning("Could not save persistent state: {}"
3604
.format(os.strerror(e.errno)))
3605
else:
3606
logger.warning("Could not save persistent state:",
3607
exc_info=e)
3608
raise
3609
2433
3610
# Delete all clients, and settings from config
2434
3611
while tcp_server.clients:
2435
3612
name, client = tcp_server.clients.popitem()
2436
3613
if use_dbus:
2437
3614
client.remove_from_connection()
2438
# Don't signal anything except ClientRemoved
3615
# Don't signal the disabling
2439
3616
client.disable(quiet=True)
3617
# Emit D-Bus signal for removal
2440
3618
if use_dbus:
2441
# Emit D-Bus signal
2442
mandos_dbus_service.ClientRemoved(client
2443
.dbus_object_path,
2444
client.name)
3619
mandos_dbus_service.client_removed_signal(client)
2445
3620
client_settings.clear()
2446
3621
2447
3622
atexit.register(cleanup)
2448
2449
for client in tcp_server.clients.itervalues():
3623
3624
for client in tcp_server.clients.values():
2450
3625
if use_dbus:
2451
# Emit D-Bus signal
2452
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3626
# Emit D-Bus signal for adding
3627
mandos_dbus_service.client_added_signal(client)
2453
3628
# Need to initiate checking of clients
2454
3629
if client.enabled:
2455
3630
client.init_checker()
2456
3631
2457
3632
tcp_server.enable()
2458
3633
tcp_server.server_activate()
2459
3634
2460
3635
# Find out what port we got
2461
service.port = tcp_server.socket.getsockname()[1]
3636
if zeroconf:
3637
service.port = tcp_server.socket.getsockname()[1]
2462
3638
if use_ipv6:
2463
3639
logger.info("Now listening on address %r, port %d,"
2464
" flowinfo %d, scope_id %d"
2465
% tcp_server.socket.getsockname())
3640
" flowinfo %d, scope_id %d",
3641
*tcp_server.socket.getsockname())
2466
3642
else: # IPv4
2467
logger.info("Now listening on address %r, port %d"
2468
% tcp_server.socket.getsockname())
2469
2470
#service.interface = tcp_server.socket.getsockname()[3]
2471
3643
logger.info("Now listening on address %r, port %d",
3644
*tcp_server.socket.getsockname())
3645
3646
# service.interface = tcp_server.socket.getsockname()[3]
3647
2472
3648
try:
2473
# From the Avahi example code
2474
try:
2475
service.activate()
2476
except dbus.exceptions.DBusException as error:
2477
logger.critical("DBusException: %s", error)
2478
cleanup()
2479
sys.exit(1)
2480
# End of Avahi example code
2481
2482
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2483
lambda *args, **kwargs:
2484
(tcp_server.handle_request
2485
(*args[2:], **kwargs) or True))
2486
3649
if zeroconf:
3650
# From the Avahi example code
3651
try:
3652
service.activate()
3653
except dbus.exceptions.DBusException as error:
3654
logger.critical("D-Bus Exception", exc_info=error)
3655
cleanup()
3656
sys.exit(1)
3657
# End of Avahi example code
3658
3659
GLib.io_add_watch(
3660
GLib.IOChannel.unix_new(tcp_server.fileno()),
3661
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3662
lambda *args, **kwargs: (tcp_server.handle_request
3663
(*args[2:], **kwargs) or True))
3664
2487
3665
logger.debug("Starting main loop")
2488
3666
main_loop.run()
2489
3667
except AvahiError as error:
2490
logger.critical("AvahiError: %s", error)
3668
logger.critical("Avahi Error", exc_info=error)
2491
3669
cleanup()
2492
3670
sys.exit(1)
2493
3671
except KeyboardInterrupt:
2498
3676
# Must run before the D-Bus bus name gets deregistered
2499
3677
cleanup()
2500
3678
2501
if __name__ == '__main__':
2502
main()
3679
3680
def should_only_run_tests():
3681
parser = argparse.ArgumentParser(add_help=False)
3682
parser.add_argument("--check", action="store_true")
3683
args, unknown_args = parser.parse_known_args()
3684
run_tests = args.check
3685
if run_tests:
3686
# Remove --check argument from sys.argv
3687
sys.argv[1:] = unknown_args
3688
return run_tests
3689
3690
# Add all tests from doctest strings
3691
def load_tests(loader, tests, none):
3692
import doctest
3693
tests.addTests(doctest.DocTestSuite())
3694
return tests
3695
3696
if __name__ == "__main__":
3697
try:
3698
if should_only_run_tests():
3699
# Call using ./mandos --check [--verbose]
3700
unittest.main()
3701
else:
3702
main()
3703
finally:
3704
logging.shutdown()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0