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- Committer: teddy at recompile
- Date: 2011-12-31 13:25:58 UTC
- mto: This revision was merged to the branch mainline in revision 541.
- Revision ID: teddy@recompile.se-20111231132558-z0dh7qgofgctmgri
* network-hooks.s/bridge: Don't use interface names directly; search
for interface names using their address.
(addrtoif): New function.
* network-hooks.s/bridge.conf (PORTS): Removed.
(PORT_ADDRESSES): New.
* network-hooks.s/wireless: Don't use interface names directly; search
for interface names using their address.
(addrtoif): New function.
* network-hooks.s/wireless.conf: Specify address.
for interface names using their address.
(addrtoif): New function.
* network-hooks.s/bridge.conf (PORTS): Removed.
(PORT_ADDRESSES): New.
* network-hooks.s/wireless: Don't use interface names directly; search
for interface names using their address.
(addrtoif): New function.
* network-hooks.s/wireless.conf: Specify address.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2020 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
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
66
import binascii
76
67
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
import shlex
83
68
84
69
import dbus
85
70
import dbus.service
86
import gi
87
from gi.repository import GLib
71
import gobject
72
import avahi
88
73
from dbus.mainloop.glib import DBusGMainLoop
89
74
import ctypes
90
75
import ctypes.util
91
76
import xml.dom.minidom
92
77
import inspect
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:
78
import GnuPGInterface
79
80
try:
122
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
123
82
except AttributeError:
124
83
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
127
84
from IN import SO_BINDTODEVICE
128
85
except ImportError:
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"
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
147
89
stored_state_file = "clients.pickle"
148
90
149
91
logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
152
95
153
96
try:
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
156
100
except (OSError, AttributeError):
157
158
101
def if_nametoindex(interface):
159
102
"Get an interface index the hard way, i.e. using fcntl()"
160
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
161
104
with contextlib.closing(socket.socket()) as s:
162
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
165
110
return interface_index
166
111
167
112
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
184
113
def initlogger(debug, level=logging.WARNING):
185
114
"""init logger and add loglevel"""
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
115
191
116
syslogger.setFormatter(logging.Formatter
192
117
('Mandos [%(process)d]: %(levelname)s:'
193
118
' %(message)s'))
194
119
logger.addHandler(syslogger)
195
120
196
121
if debug:
197
122
console = logging.StreamHandler()
198
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
208
133
pass
209
134
210
135
211
class PGPEngine:
136
class PGPEngine(object):
212
137
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
214
138
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
215
140
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
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
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
235
147
def __enter__(self):
236
148
return self
237
238
def __exit__(self, exc_type, exc_value, traceback):
149
150
def __exit__ (self, exc_type, exc_value, traceback):
239
151
self._cleanup()
240
152
return False
241
153
242
154
def __del__(self):
243
155
self._cleanup()
244
156
245
157
def _cleanup(self):
246
158
if self.tempdir is not None:
247
159
# Delete contents of tempdir
248
160
for root, dirs, files in os.walk(self.tempdir,
249
topdown=False):
161
topdown = False):
250
162
for filename in files:
251
163
os.remove(os.path.join(root, filename))
252
164
for dirname in dirs:
254
166
# Remove tempdir
255
167
os.rmdir(self.tempdir)
256
168
self.tempdir = None
257
169
258
170
def password_encode(self, password):
259
171
# Passphrase can not be empty and can not contain newlines or
260
172
# NUL bytes. So we prefix it and hex encode it.
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
173
return b"mandos" + binascii.hexlify(password)
174
269
175
def encrypt(self, data, password):
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)
176
self.gnupg.passphrase = self.password_encode(password)
177
with open(os.devnull) as devnull:
178
try:
179
proc = self.gnupg.run(['--symmetric'],
180
create_fhs=['stdin', 'stdout'],
181
attach_fhs={'stderr': devnull})
182
with contextlib.closing(proc.handles['stdin']) as f:
183
f.write(data)
184
with contextlib.closing(proc.handles['stdout']) as f:
185
ciphertext = f.read()
186
proc.wait()
187
except IOError as e:
188
raise PGPError(e)
189
self.gnupg.passphrase = None
285
190
return ciphertext
286
191
287
192
def decrypt(self, data, password):
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)
193
self.gnupg.passphrase = self.password_encode(password)
194
with open(os.devnull) as devnull:
195
try:
196
proc = self.gnupg.run(['--decrypt'],
197
create_fhs=['stdin', 'stdout'],
198
attach_fhs={'stderr': devnull})
199
with contextlib.closing(proc.handles['stdin'] ) as f:
200
f.write(data)
201
with contextlib.closing(proc.handles['stdout']) as f:
202
decrypted_plaintext = f.read()
203
proc.wait()
204
except IOError as e:
205
raise PGPError(e)
206
self.gnupg.passphrase = None
303
207
return decrypted_plaintext
304
208
305
209
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
331
210
332
211
class AvahiError(Exception):
333
212
def __init__(self, value, *args, **kwargs):
334
213
self.value = value
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
214
super(AvahiError, self).__init__(value, *args, **kwargs)
215
def __unicode__(self):
216
return unicode(repr(self.value))
338
217
339
218
class AvahiServiceError(AvahiError):
340
219
pass
341
220
342
343
221
class AvahiGroupError(AvahiError):
344
222
pass
345
223
346
224
347
class AvahiService:
225
class AvahiService(object):
348
226
"""An Avahi (Zeroconf) service.
349
227
350
228
Attributes:
351
229
interface: integer; avahi.IF_UNSPEC or an interface index.
352
230
Used to optionally bind to the specified interface.
353
231
name: string; Example: 'Mandos'
354
232
type: string; Example: '_mandos._tcp'.
355
See <https://www.iana.org/assignments/service-names-port-numbers>
233
See <http://www.dns-sd.org/ServiceTypes.html>
356
234
port: integer; what port to announce
357
235
TXT: list of strings; TXT record for the service
358
236
domain: string; Domain to publish on, default to .local if empty.
364
242
server: D-Bus Server
365
243
bus: dbus.SystemBus()
366
244
"""
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):
245
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
246
servicetype = None, port = None, TXT = None,
247
domain = "", host = "", max_renames = 32768,
248
protocol = avahi.PROTO_UNSPEC, bus = None):
379
249
self.interface = interface
380
250
self.name = name
381
251
self.type = servicetype
390
260
self.server = None
391
261
self.bus = bus
392
262
self.entry_group_state_changed_match = None
393
394
def rename(self, remove=True):
263
def rename(self):
395
264
"""Derived from the Avahi example code"""
396
265
if self.rename_count >= self.max_renames:
397
266
logger.critical("No suitable Zeroconf service name found"
398
267
" after %i retries, exiting.",
399
268
self.rename_count)
400
269
raise AvahiServiceError("Too many renames")
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
270
self.name = unicode(self.server
271
.GetAlternativeServiceName(self.name))
404
272
logger.info("Changing Zeroconf service name to %r ...",
405
273
self.name)
406
if remove:
407
self.remove()
274
self.remove()
408
275
try:
409
276
self.add()
410
277
except dbus.exceptions.DBusException as error:
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
278
logger.critical("DBusException: %s", error)
279
self.cleanup()
280
os._exit(1)
281
self.rename_count += 1
420
282
def remove(self):
421
283
"""Derived from the Avahi example code"""
422
284
if self.entry_group_state_changed_match is not None:
424
286
self.entry_group_state_changed_match = None
425
287
if self.group is not None:
426
288
self.group.Reset()
427
428
289
def add(self):
429
290
"""Derived from the Avahi example code"""
430
291
self.remove()
447
308
dbus.UInt16(self.port),
448
309
avahi.string_array_to_txt_array(self.TXT))
449
310
self.group.Commit()
450
451
311
def entry_group_state_changed(self, state, error):
452
312
"""Derived from the Avahi example code"""
453
313
logger.debug("Avahi entry group state change: %i", state)
454
314
455
315
if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
316
logger.debug("Zeroconf service established.")
457
317
elif state == avahi.ENTRY_GROUP_COLLISION:
459
319
self.rename()
460
320
elif state == avahi.ENTRY_GROUP_FAILURE:
461
321
logger.critical("Avahi: Error in group state changed %s",
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
322
unicode(error))
323
raise AvahiGroupError("State changed: %s"
324
% unicode(error))
465
325
def cleanup(self):
466
326
"""Derived from the Avahi example code"""
467
327
if self.group is not None:
472
332
pass
473
333
self.group = None
474
334
self.remove()
475
476
335
def server_state_changed(self, state, error=None):
477
336
"""Derived from the Avahi example code"""
478
337
logger.debug("Avahi server state change: %i", state)
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
}
338
bad_states = { avahi.SERVER_INVALID:
339
"Zeroconf server invalid",
340
avahi.SERVER_REGISTERING: None,
341
avahi.SERVER_COLLISION:
342
"Zeroconf server name collision",
343
avahi.SERVER_FAILURE:
344
"Zeroconf server failure" }
485
345
if state in bad_states:
486
346
if bad_states[state] is not None:
487
347
if error is None:
490
350
logger.error(bad_states[state] + ": %r", error)
491
351
self.cleanup()
492
352
elif state == avahi.SERVER_RUNNING:
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)
353
self.add()
505
354
else:
506
355
if error is None:
507
356
logger.debug("Unknown state: %r", state)
508
357
else:
509
358
logger.debug("Unknown state: %r: %r", state, error)
510
511
359
def activate(self):
512
360
"""Derived from the Avahi example code"""
513
361
if self.server is None:
517
365
follow_name_owner_changes=True),
518
366
avahi.DBUS_INTERFACE_SERVER)
519
367
self.server.connect_to_signal("StateChanged",
520
self.server_state_changed)
368
self.server_state_changed)
521
369
self.server_state_changed(self.server.GetState())
522
370
523
524
371
class AvahiServiceToSyslog(AvahiService):
525
def rename(self, *args, **kwargs):
372
def rename(self):
526
373
"""Add the new name to the syslog messages"""
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)))
374
ret = AvahiService.rename(self)
375
syslogger.setFormatter(logging.Formatter
376
('Mandos (%s) [%%(process)d]:'
377
' %%(levelname)s: %%(message)s'
378
% self.name))
532
379
return ret
533
380
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)
598
return super(gnutls.Error, self).__init__(
599
message, *args)
600
601
class CertificateSecurityError(Error):
602
pass
603
604
# Classes
605
class Credentials:
606
def __init__(self):
607
self._c_object = gnutls.certificate_credentials_t()
608
gnutls.certificate_allocate_credentials(
609
ctypes.byref(self._c_object))
610
self.type = gnutls.CRD_CERTIFICATE
611
612
def __del__(self):
613
gnutls.certificate_free_credentials(self._c_object)
614
615
class ClientSession:
616
def __init__(self, socket, credentials=None):
617
self._c_object = gnutls.session_t()
618
gnutls_flags = gnutls.CLIENT
619
if gnutls.check_version(b"3.5.6"):
620
gnutls_flags |= gnutls.NO_TICKETS
621
if gnutls.has_rawpk:
622
gnutls_flags |= gnutls.ENABLE_RAWPK
623
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
624
del gnutls_flags
625
gnutls.set_default_priority(self._c_object)
626
gnutls.transport_set_ptr(self._c_object, socket.fileno())
627
gnutls.handshake_set_private_extensions(self._c_object,
628
True)
629
self.socket = socket
630
if credentials is None:
631
credentials = gnutls.Credentials()
632
gnutls.credentials_set(self._c_object, credentials.type,
633
ctypes.cast(credentials._c_object,
634
ctypes.c_void_p))
635
self.credentials = credentials
636
637
def __del__(self):
638
gnutls.deinit(self._c_object)
639
640
def handshake(self):
641
return gnutls.handshake(self._c_object)
642
643
def send(self, data):
644
data = bytes(data)
645
data_len = len(data)
646
while data_len > 0:
647
data_len -= gnutls.record_send(self._c_object,
648
data[-data_len:],
649
data_len)
650
651
def bye(self):
652
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
653
654
# Error handling functions
655
def _error_code(result):
656
"""A function to raise exceptions on errors, suitable
657
for the 'restype' attribute on ctypes functions"""
658
if result >= 0:
659
return result
660
if result == gnutls.E_NO_CERTIFICATE_FOUND:
661
raise gnutls.CertificateSecurityError(code=result)
662
raise gnutls.Error(code=result)
663
664
def _retry_on_error(result, func, arguments,
665
_error_code=_error_code):
666
"""A function to retry on some errors, suitable
667
for the 'errcheck' attribute on ctypes functions"""
668
while result < 0:
669
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
670
return _error_code(result)
671
result = func(*arguments)
672
return result
673
674
# Unless otherwise indicated, the function declarations below are
675
# all from the gnutls/gnutls.h C header file.
676
677
# Functions
678
priority_set_direct = _library.gnutls_priority_set_direct
679
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
680
ctypes.POINTER(ctypes.c_char_p)]
681
priority_set_direct.restype = _error_code
682
683
init = _library.gnutls_init
684
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
685
init.restype = _error_code
686
687
set_default_priority = _library.gnutls_set_default_priority
688
set_default_priority.argtypes = [session_t]
689
set_default_priority.restype = _error_code
690
691
record_send = _library.gnutls_record_send
692
record_send.argtypes = [session_t, ctypes.c_void_p,
693
ctypes.c_size_t]
694
record_send.restype = ctypes.c_ssize_t
695
record_send.errcheck = _retry_on_error
696
697
certificate_allocate_credentials = (
698
_library.gnutls_certificate_allocate_credentials)
699
certificate_allocate_credentials.argtypes = [
700
ctypes.POINTER(certificate_credentials_t)]
701
certificate_allocate_credentials.restype = _error_code
702
703
certificate_free_credentials = (
704
_library.gnutls_certificate_free_credentials)
705
certificate_free_credentials.argtypes = [
706
certificate_credentials_t]
707
certificate_free_credentials.restype = None
708
709
handshake_set_private_extensions = (
710
_library.gnutls_handshake_set_private_extensions)
711
handshake_set_private_extensions.argtypes = [session_t,
712
ctypes.c_int]
713
handshake_set_private_extensions.restype = None
714
715
credentials_set = _library.gnutls_credentials_set
716
credentials_set.argtypes = [session_t, credentials_type_t,
717
ctypes.c_void_p]
718
credentials_set.restype = _error_code
719
720
strerror = _library.gnutls_strerror
721
strerror.argtypes = [ctypes.c_int]
722
strerror.restype = ctypes.c_char_p
723
724
certificate_type_get = _library.gnutls_certificate_type_get
725
certificate_type_get.argtypes = [session_t]
726
certificate_type_get.restype = _error_code
727
728
certificate_get_peers = _library.gnutls_certificate_get_peers
729
certificate_get_peers.argtypes = [session_t,
730
ctypes.POINTER(ctypes.c_uint)]
731
certificate_get_peers.restype = ctypes.POINTER(datum_t)
732
733
global_set_log_level = _library.gnutls_global_set_log_level
734
global_set_log_level.argtypes = [ctypes.c_int]
735
global_set_log_level.restype = None
736
737
global_set_log_function = _library.gnutls_global_set_log_function
738
global_set_log_function.argtypes = [log_func]
739
global_set_log_function.restype = None
740
741
deinit = _library.gnutls_deinit
742
deinit.argtypes = [session_t]
743
deinit.restype = None
744
745
handshake = _library.gnutls_handshake
746
handshake.argtypes = [session_t]
747
handshake.restype = _error_code
748
handshake.errcheck = _retry_on_error
749
750
transport_set_ptr = _library.gnutls_transport_set_ptr
751
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
752
transport_set_ptr.restype = None
753
754
bye = _library.gnutls_bye
755
bye.argtypes = [session_t, close_request_t]
756
bye.restype = _error_code
757
bye.errcheck = _retry_on_error
758
759
check_version = _library.gnutls_check_version
760
check_version.argtypes = [ctypes.c_char_p]
761
check_version.restype = ctypes.c_char_p
762
763
_need_version = b"3.3.0"
764
if check_version(_need_version) is None:
765
raise self.Error("Needs GnuTLS {} or later"
766
.format(_need_version))
767
768
_tls_rawpk_version = b"3.6.6"
769
has_rawpk = bool(check_version(_tls_rawpk_version))
770
771
if has_rawpk:
772
# Types
773
class pubkey_st(ctypes.Structure):
774
_fields = []
775
pubkey_t = ctypes.POINTER(pubkey_st)
776
777
x509_crt_fmt_t = ctypes.c_int
778
779
# All the function declarations below are from
780
# gnutls/abstract.h
781
pubkey_init = _library.gnutls_pubkey_init
782
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
783
pubkey_init.restype = _error_code
784
785
pubkey_import = _library.gnutls_pubkey_import
786
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
787
x509_crt_fmt_t]
788
pubkey_import.restype = _error_code
789
790
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
791
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
792
ctypes.POINTER(ctypes.c_ubyte),
793
ctypes.POINTER(ctypes.c_size_t)]
794
pubkey_get_key_id.restype = _error_code
795
796
pubkey_deinit = _library.gnutls_pubkey_deinit
797
pubkey_deinit.argtypes = [pubkey_t]
798
pubkey_deinit.restype = None
799
else:
800
# All the function declarations below are from
801
# gnutls/openpgp.h
802
803
openpgp_crt_init = _library.gnutls_openpgp_crt_init
804
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
805
openpgp_crt_init.restype = _error_code
806
807
openpgp_crt_import = _library.gnutls_openpgp_crt_import
808
openpgp_crt_import.argtypes = [openpgp_crt_t,
809
ctypes.POINTER(datum_t),
810
openpgp_crt_fmt_t]
811
openpgp_crt_import.restype = _error_code
812
813
openpgp_crt_verify_self = \
814
_library.gnutls_openpgp_crt_verify_self
815
openpgp_crt_verify_self.argtypes = [
816
openpgp_crt_t,
817
ctypes.c_uint,
818
ctypes.POINTER(ctypes.c_uint),
819
]
820
openpgp_crt_verify_self.restype = _error_code
821
822
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
823
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
824
openpgp_crt_deinit.restype = None
825
826
openpgp_crt_get_fingerprint = (
827
_library.gnutls_openpgp_crt_get_fingerprint)
828
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
829
ctypes.c_void_p,
830
ctypes.POINTER(
831
ctypes.c_size_t)]
832
openpgp_crt_get_fingerprint.restype = _error_code
833
834
if check_version(b"3.6.4"):
835
certificate_type_get2 = _library.gnutls_certificate_type_get2
836
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
837
certificate_type_get2.restype = _error_code
838
839
# Remove non-public functions
840
del _error_code, _retry_on_error
841
842
843
def call_pipe(connection, # : multiprocessing.Connection
844
func, *args, **kwargs):
845
"""This function is meant to be called by multiprocessing.Process
846
847
This function runs func(*args, **kwargs), and writes the resulting
848
return value on the provided multiprocessing.Connection.
849
"""
850
connection.send(func(*args, **kwargs))
851
connection.close()
852
853
854
class Client:
381
def timedelta_to_milliseconds(td):
382
"Convert a datetime.timedelta() to milliseconds"
383
return ((td.days * 24 * 60 * 60 * 1000)
384
+ (td.seconds * 1000)
385
+ (td.microseconds // 1000))
386
387
class Client(object):
855
388
"""A representation of a client host served by this server.
856
389
857
390
Attributes:
858
391
approved: bool(); 'None' if not yet approved/disapproved
859
392
approval_delay: datetime.timedelta(); Time to wait for approval
860
393
approval_duration: datetime.timedelta(); Duration of one approval
861
checker: multiprocessing.Process(); a running checker process used
862
to see if the client lives. 'None' if no process is
863
running.
864
checker_callback_tag: a GLib event source tag, or None
394
checker: subprocess.Popen(); a running checker process used
395
to see if the client lives.
396
'None' if no process is running.
397
checker_callback_tag: a gobject event source tag, or None
865
398
checker_command: string; External command which is run to check
866
399
if client lives. %() expansions are done at
867
400
runtime with vars(self) as dict, so that for
868
401
instance %(name)s can be used in the command.
869
checker_initiator_tag: a GLib event source tag, or None
402
checker_initiator_tag: a gobject event source tag, or None
870
403
created: datetime.datetime(); (UTC) object creation
871
404
client_structure: Object describing what attributes a client has
872
405
and is used for storing the client at exit
873
406
current_checker_command: string; current running checker_command
874
disable_initiator_tag: a GLib event source tag, or None
407
disable_initiator_tag: a gobject event source tag, or None
875
408
enabled: bool()
876
409
fingerprint: string (40 or 32 hexadecimal digits); used to
877
uniquely identify an OpenPGP client
878
key_id: string (64 hexadecimal digits); used to uniquely identify
879
a client using raw public keys
410
uniquely identify the client
880
411
host: string; available for use by the checker command
881
412
interval: datetime.timedelta(); How often to start a new checker
882
413
last_approval_request: datetime.datetime(); (UTC) or None
883
414
last_checked_ok: datetime.datetime(); (UTC) or None
884
415
last_checker_status: integer between 0 and 255 reflecting exit
885
416
status of last checker. -1 reflects crashed
886
checker, -2 means no checker completed yet.
887
last_checker_signal: The signal which killed the last checker, if
888
last_checker_status is -1
417
checker, or None.
889
418
last_enabled: datetime.datetime(); (UTC) or None
890
419
name: string; from the config file, used in log messages and
891
420
D-Bus identifiers
892
421
secret: bytestring; sent verbatim (over TLS) to client
893
422
timeout: datetime.timedelta(); How long from last_checked_ok
894
423
until this client is disabled
895
extended_timeout: extra long timeout when secret has been sent
424
extended_timeout: extra long timeout when password has been sent
896
425
runtime_expansions: Allowed attributes for runtime expansion.
897
426
expires: datetime.datetime(); time (UTC) when a client will be
898
427
disabled, or None
899
server_settings: The server_settings dict from main()
900
428
"""
901
429
902
430
runtime_expansions = ("approval_delay", "approval_duration",
903
"created", "enabled", "expires", "key_id",
904
"fingerprint", "host", "interval",
905
"last_approval_request", "last_checked_ok",
431
"created", "enabled", "fingerprint",
432
"host", "interval", "last_checked_ok",
906
433
"last_enabled", "name", "timeout")
907
client_defaults = {
908
"timeout": "PT5M",
909
"extended_timeout": "PT15M",
910
"interval": "PT2M",
911
"checker": "fping -q -- %%(host)s",
912
"host": "",
913
"approval_delay": "PT0S",
914
"approval_duration": "PT1S",
915
"approved_by_default": "True",
916
"enabled": "True",
917
}
434
client_defaults = { "timeout": "5m",
435
"extended_timeout": "15m",
436
"interval": "2m",
437
"checker": "fping -q -- %%(host)s",
438
"host": "",
439
"approval_delay": "0s",
440
"approval_duration": "1s",
441
"approved_by_default": "True",
442
"enabled": "True",
443
}
444
445
def timeout_milliseconds(self):
446
"Return the 'timeout' attribute in milliseconds"
447
return timedelta_to_milliseconds(self.timeout)
448
449
def extended_timeout_milliseconds(self):
450
"Return the 'extended_timeout' attribute in milliseconds"
451
return timedelta_to_milliseconds(self.extended_timeout)
452
453
def interval_milliseconds(self):
454
"Return the 'interval' attribute in milliseconds"
455
return timedelta_to_milliseconds(self.interval)
456
457
def approval_delay_milliseconds(self):
458
return timedelta_to_milliseconds(self.approval_delay)
918
459
919
460
@staticmethod
920
461
def config_parser(config):
921
"""Construct a new dict of client settings of this form:
462
""" Construct a new dict of client settings of this form:
922
463
{ client_name: {setting_name: value, ...}, ...}
923
with exceptions for any special settings as defined above.
924
NOTE: Must be a pure function. Must return the same result
925
value given the same arguments.
926
"""
464
with exceptions for any special settings as defined above"""
927
465
settings = {}
928
466
for client_name in config.sections():
929
467
section = dict(config.items(client_name))
930
468
client = settings[client_name] = {}
931
469
932
470
client["host"] = section["host"]
933
471
# Reformat values from string types to Python types
934
472
client["approved_by_default"] = config.getboolean(
935
473
client_name, "approved_by_default")
936
client["enabled"] = config.getboolean(client_name,
937
"enabled")
938
939
# Uppercase and remove spaces from key_id and fingerprint
940
# for later comparison purposes with return value from the
941
# key_id() and fingerprint() functions
942
client["key_id"] = (section.get("key_id", "").upper()
943
.replace(" ", ""))
474
client["enabled"] = config.getboolean(client_name, "enabled")
475
944
476
client["fingerprint"] = (section["fingerprint"].upper()
945
477
.replace(" ", ""))
946
478
if "secret" in section:
947
client["secret"] = codecs.decode(section["secret"]
948
.encode("utf-8"),
949
"base64")
479
client["secret"] = section["secret"].decode("base64")
950
480
elif "secfile" in section:
951
481
with open(os.path.expanduser(os.path.expandvars
952
482
(section["secfile"])),
953
483
"rb") as secfile:
954
484
client["secret"] = secfile.read()
955
485
else:
956
raise TypeError("No secret or secfile for section {}"
957
.format(section))
486
raise TypeError("No secret or secfile for section %s"
487
% section)
958
488
client["timeout"] = string_to_delta(section["timeout"])
959
489
client["extended_timeout"] = string_to_delta(
960
490
section["extended_timeout"])
966
496
client["checker_command"] = section["checker"]
967
497
client["last_approval_request"] = None
968
498
client["last_checked_ok"] = None
969
client["last_checker_status"] = -2
499
client["last_checker_status"] = None
500
if client["enabled"]:
501
client["last_enabled"] = datetime.datetime.utcnow()
502
client["expires"] = (datetime.datetime.utcnow()
503
+ client["timeout"])
504
else:
505
client["last_enabled"] = None
506
client["expires"] = None
970
507
971
508
return settings
972
973
def __init__(self, settings, name=None, server_settings=None):
509
510
511
def __init__(self, settings, name = None):
512
"""Note: the 'checker' key in 'config' sets the
513
'checker_command' attribute and *not* the 'checker'
514
attribute."""
974
515
self.name = name
975
if server_settings is None:
976
server_settings = {}
977
self.server_settings = server_settings
978
516
# adding all client settings
979
for setting, value in settings.items():
517
for setting, value in settings.iteritems():
980
518
setattr(self, setting, value)
981
982
if self.enabled:
983
if not hasattr(self, "last_enabled"):
984
self.last_enabled = datetime.datetime.utcnow()
985
if not hasattr(self, "expires"):
986
self.expires = (datetime.datetime.utcnow()
987
+ self.timeout)
988
else:
989
self.last_enabled = None
990
self.expires = None
991
519
992
520
logger.debug("Creating client %r", self.name)
993
logger.debug(" Key ID: %s", self.key_id)
521
# Uppercase and remove spaces from fingerprint for later
522
# comparison purposes with return value from the fingerprint()
523
# function
994
524
logger.debug(" Fingerprint: %s", self.fingerprint)
995
self.created = settings.get("created",
996
datetime.datetime.utcnow())
525
self.created = settings.get("created", datetime.datetime.utcnow())
997
526
998
527
# attributes specific for this server instance
999
528
self.checker = None
1003
532
self.current_checker_command = None
1004
533
self.approved = None
1005
534
self.approvals_pending = 0
1006
self.changedstate = multiprocessing_manager.Condition(
1007
multiprocessing_manager.Lock())
1008
self.client_structure = [attr
1009
for attr in self.__dict__.keys()
535
self.changedstate = (multiprocessing_manager
536
.Condition(multiprocessing_manager
537
.Lock()))
538
self.client_structure = [attr for attr in
539
self.__dict__.iterkeys()
1010
540
if not attr.startswith("_")]
1011
541
self.client_structure.append("client_structure")
1012
1013
for name, t in inspect.getmembers(
1014
type(self), lambda obj: isinstance(obj, property)):
542
543
for name, t in inspect.getmembers(type(self),
544
lambda obj:
545
isinstance(obj,
546
property)):
1015
547
if not name.startswith("_"):
1016
548
self.client_structure.append(name)
1017
549
1018
550
# Send notice to process children that client state has changed
1019
551
def send_changedstate(self):
1020
552
with self.changedstate:
1021
553
self.changedstate.notify_all()
1022
554
1023
555
def enable(self):
1024
556
"""Start this client's checker and timeout hooks"""
1025
557
if getattr(self, "enabled", False):
1026
558
# Already enabled
1027
559
return
560
self.send_changedstate()
1028
561
self.expires = datetime.datetime.utcnow() + self.timeout
1029
562
self.enabled = True
1030
563
self.last_enabled = datetime.datetime.utcnow()
1031
564
self.init_checker()
1032
self.send_changedstate()
1033
565
1034
566
def disable(self, quiet=True):
1035
567
"""Disable this client."""
1036
568
if not getattr(self, "enabled", False):
1037
569
return False
1038
570
if not quiet:
571
self.send_changedstate()
572
if not quiet:
1039
573
logger.info("Disabling client %s", self.name)
1040
if getattr(self, "disable_initiator_tag", None) is not None:
1041
GLib.source_remove(self.disable_initiator_tag)
574
if getattr(self, "disable_initiator_tag", False):
575
gobject.source_remove(self.disable_initiator_tag)
1042
576
self.disable_initiator_tag = None
1043
577
self.expires = None
1044
if getattr(self, "checker_initiator_tag", None) is not None:
1045
GLib.source_remove(self.checker_initiator_tag)
578
if getattr(self, "checker_initiator_tag", False):
579
gobject.source_remove(self.checker_initiator_tag)
1046
580
self.checker_initiator_tag = None
1047
581
self.stop_checker()
1048
582
self.enabled = False
1049
if not quiet:
1050
self.send_changedstate()
1051
# Do not run this again if called by a GLib.timeout_add
583
# Do not run this again if called by a gobject.timeout_add
1052
584
return False
1053
585
1054
586
def __del__(self):
1055
587
self.disable()
1056
588
1057
589
def init_checker(self):
1058
590
# Schedule a new checker to be started an 'interval' from now,
1059
591
# and every interval from then on.
1060
if self.checker_initiator_tag is not None:
1061
GLib.source_remove(self.checker_initiator_tag)
1062
self.checker_initiator_tag = GLib.timeout_add(
1063
random.randrange(int(self.interval.total_seconds() * 1000
1064
+ 1)),
1065
self.start_checker)
592
self.checker_initiator_tag = (gobject.timeout_add
593
(self.interval_milliseconds(),
594
self.start_checker))
1066
595
# Schedule a disable() when 'timeout' has passed
1067
if self.disable_initiator_tag is not None:
1068
GLib.source_remove(self.disable_initiator_tag)
1069
self.disable_initiator_tag = GLib.timeout_add(
1070
int(self.timeout.total_seconds() * 1000), self.disable)
596
self.disable_initiator_tag = (gobject.timeout_add
597
(self.timeout_milliseconds(),
598
self.disable))
1071
599
# Also start a new checker *right now*.
1072
600
self.start_checker()
1073
1074
def checker_callback(self, source, condition, connection,
1075
command):
601
602
def checker_callback(self, pid, condition, command):
1076
603
"""The checker has completed, so take appropriate actions."""
1077
# Read return code from connection (see call_pipe)
1078
returncode = connection.recv()
1079
connection.close()
1080
if self.checker is not None:
1081
self.checker.join()
1082
604
self.checker_callback_tag = None
1083
605
self.checker = None
1084
1085
if returncode >= 0:
1086
self.last_checker_status = returncode
1087
self.last_checker_signal = None
606
if os.WIFEXITED(condition):
607
self.last_checker_status = os.WEXITSTATUS(condition)
1088
608
if self.last_checker_status == 0:
1089
609
logger.info("Checker for %(name)s succeeded",
1090
610
vars(self))
1091
611
self.checked_ok()
1092
612
else:
1093
logger.info("Checker for %(name)s failed", vars(self))
613
logger.info("Checker for %(name)s failed",
614
vars(self))
1094
615
else:
1095
616
self.last_checker_status = -1
1096
self.last_checker_signal = -returncode
1097
617
logger.warning("Checker for %(name)s crashed?",
1098
618
vars(self))
1099
return False
1100
1101
def checked_ok(self):
1102
"""Assert that the client has been seen, alive and well."""
1103
self.last_checked_ok = datetime.datetime.utcnow()
1104
self.last_checker_status = 0
1105
self.last_checker_signal = None
1106
self.bump_timeout()
1107
1108
def bump_timeout(self, timeout=None):
1109
"""Bump up the timeout for this client."""
619
620
def checked_ok(self, timeout=None):
621
"""Bump up the timeout for this client.
622
623
This should only be called when the client has been seen,
624
alive and well.
625
"""
1110
626
if timeout is None:
1111
627
timeout = self.timeout
628
self.last_checked_ok = datetime.datetime.utcnow()
1112
629
if self.disable_initiator_tag is not None:
1113
GLib.source_remove(self.disable_initiator_tag)
1114
self.disable_initiator_tag = None
630
gobject.source_remove(self.disable_initiator_tag)
1115
631
if getattr(self, "enabled", False):
1116
self.disable_initiator_tag = GLib.timeout_add(
1117
int(timeout.total_seconds() * 1000), self.disable)
632
self.disable_initiator_tag = (gobject.timeout_add
633
(timedelta_to_milliseconds
634
(timeout), self.disable))
1118
635
self.expires = datetime.datetime.utcnow() + timeout
1119
636
1120
637
def need_approval(self):
1121
638
self.last_approval_request = datetime.datetime.utcnow()
1122
639
1123
640
def start_checker(self):
1124
641
"""Start a new checker subprocess if one is not running.
1125
642
1126
643
If a checker already exists, leave it running and do
1127
644
nothing."""
1128
645
# The reason for not killing a running checker is that if we
1129
# did that, and if a checker (for some reason) started running
1130
# slowly and taking more than 'interval' time, then the client
1131
# would inevitably timeout, since no checker would get a
1132
# chance to run to completion. If we instead leave running
646
# did that, then if a checker (for some reason) started
647
# running slowly and taking more than 'interval' time, the
648
# client would inevitably timeout, since no checker would get
649
# a chance to run to completion. If we instead leave running
1133
650
# checkers alone, the checker would have to take more time
1134
651
# than 'timeout' for the client to be disabled, which is as it
1135
652
# should be.
1136
1137
if self.checker is not None and not self.checker.is_alive():
1138
logger.warning("Checker was not alive; joining")
1139
self.checker.join()
1140
self.checker = None
653
654
# If a checker exists, make sure it is not a zombie
655
try:
656
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
657
except (AttributeError, OSError) as error:
658
if (isinstance(error, OSError)
659
and error.errno != errno.ECHILD):
660
raise error
661
else:
662
if pid:
663
logger.warning("Checker was a zombie")
664
gobject.source_remove(self.checker_callback_tag)
665
self.checker_callback(pid, status,
666
self.current_checker_command)
1141
667
# Start a new checker if needed
1142
668
if self.checker is None:
1143
# Escape attributes for the shell
1144
escaped_attrs = {
1145
attr: shlex.quote(str(getattr(self, attr)))
1146
for attr in self.runtime_expansions}
1147
669
try:
1148
command = self.checker_command % escaped_attrs
1149
except TypeError as error:
1150
logger.error('Could not format string "%s"',
1151
self.checker_command,
1152
exc_info=error)
1153
return True # Try again later
670
# In case checker_command has exactly one % operator
671
command = self.checker_command % self.host
672
except TypeError:
673
# Escape attributes for the shell
674
escaped_attrs = dict(
675
(attr,
676
re.escape(unicode(str(getattr(self, attr, "")),
677
errors=
678
'replace')))
679
for attr in
680
self.runtime_expansions)
681
682
try:
683
command = self.checker_command % escaped_attrs
684
except TypeError as error:
685
logger.error('Could not format string "%s":'
686
' %s', self.checker_command, error)
687
return True # Try again later
1154
688
self.current_checker_command = command
1155
logger.info("Starting checker %r for %s", command,
1156
self.name)
1157
# We don't need to redirect stdout and stderr, since
1158
# in normal mode, that is already done by daemon(),
1159
# and in debug mode we don't want to. (Stdin is
1160
# always replaced by /dev/null.)
1161
# The exception is when not debugging but nevertheless
1162
# running in the foreground; use the previously
1163
# created wnull.
1164
popen_args = {"close_fds": True,
1165
"shell": True,
1166
"cwd": "/"}
1167
if (not self.server_settings["debug"]
1168
and self.server_settings["foreground"]):
1169
popen_args.update({"stdout": wnull,
1170
"stderr": wnull})
1171
pipe = multiprocessing.Pipe(duplex=False)
1172
self.checker = multiprocessing.Process(
1173
target=call_pipe,
1174
args=(pipe[1], subprocess.call, command),
1175
kwargs=popen_args)
1176
self.checker.start()
1177
self.checker_callback_tag = GLib.io_add_watch(
1178
GLib.IOChannel.unix_new(pipe[0].fileno()),
1179
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1180
self.checker_callback, pipe[0], command)
1181
# Re-run this periodically if run by GLib.timeout_add
689
try:
690
logger.info("Starting checker %r for %s",
691
command, self.name)
692
# We don't need to redirect stdout and stderr, since
693
# in normal mode, that is already done by daemon(),
694
# and in debug mode we don't want to. (Stdin is
695
# always replaced by /dev/null.)
696
self.checker = subprocess.Popen(command,
697
close_fds=True,
698
shell=True, cwd="/")
699
self.checker_callback_tag = (gobject.child_watch_add
700
(self.checker.pid,
701
self.checker_callback,
702
data=command))
703
# The checker may have completed before the gobject
704
# watch was added. Check for this.
705
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
706
if pid:
707
gobject.source_remove(self.checker_callback_tag)
708
self.checker_callback(pid, status, command)
709
except OSError as error:
710
logger.error("Failed to start subprocess: %s",
711
error)
712
# Re-run this periodically if run by gobject.timeout_add
1182
713
return True
1183
714
1184
715
def stop_checker(self):
1185
716
"""Force the checker process, if any, to stop."""
1186
717
if self.checker_callback_tag:
1187
GLib.source_remove(self.checker_callback_tag)
718
gobject.source_remove(self.checker_callback_tag)
1188
719
self.checker_callback_tag = None
1189
720
if getattr(self, "checker", None) is None:
1190
721
return
1191
722
logger.debug("Stopping checker for %(name)s", vars(self))
1192
self.checker.terminate()
723
try:
724
os.kill(self.checker.pid, signal.SIGTERM)
725
#time.sleep(0.5)
726
#if self.checker.poll() is None:
727
# os.kill(self.checker.pid, signal.SIGKILL)
728
except OSError as error:
729
if error.errno != errno.ESRCH: # No such process
730
raise
1193
731
self.checker = None
1194
732
1195
733
1196
def dbus_service_property(dbus_interface,
1197
signature="v",
1198
access="readwrite",
1199
byte_arrays=False):
734
def dbus_service_property(dbus_interface, signature="v",
735
access="readwrite", byte_arrays=False):
1200
736
"""Decorators for marking methods of a DBusObjectWithProperties to
1201
737
become properties on the D-Bus.
1202
738
1203
739
The decorated method will be called with no arguments by "Get"
1204
740
and with one argument by "Set".
1205
741
1206
742
The parameters, where they are supported, are the same as
1207
743
dbus.service.method, except there is only "signature", since the
1208
744
type from Get() and the type sent to Set() is the same.
1211
747
# "Set" method, so we fail early here:
1212
748
if byte_arrays and signature != "ay":
1213
749
raise ValueError("Byte arrays not supported for non-'ay'"
1214
" signature {!r}".format(signature))
1215
750
" signature %r" % signature)
1216
751
def decorator(func):
1217
752
func._dbus_is_property = True
1218
753
func._dbus_interface = dbus_interface
1221
756
func._dbus_name = func.__name__
1222
757
if func._dbus_name.endswith("_dbus_property"):
1223
758
func._dbus_name = func._dbus_name[:-14]
1224
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1225
return func
1226
1227
return decorator
1228
1229
1230
def dbus_interface_annotations(dbus_interface):
1231
"""Decorator for marking functions returning interface annotations
1232
1233
Usage:
1234
1235
@dbus_interface_annotations("org.example.Interface")
1236
def _foo(self): # Function name does not matter
1237
return {"org.freedesktop.DBus.Deprecated": "true",
1238
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1239
"false"}
1240
"""
1241
1242
def decorator(func):
1243
func._dbus_is_interface = True
1244
func._dbus_interface = dbus_interface
1245
func._dbus_name = dbus_interface
1246
return func
1247
1248
return decorator
1249
1250
1251
def dbus_annotations(annotations):
1252
"""Decorator to annotate D-Bus methods, signals or properties
1253
Usage:
1254
1255
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1256
"org.freedesktop.DBus.Property."
1257
"EmitsChangedSignal": "false"})
1258
@dbus_service_property("org.example.Interface", signature="b",
1259
access="r")
1260
def Property_dbus_property(self):
1261
return dbus.Boolean(False)
1262
1263
See also the DBusObjectWithAnnotations class.
1264
"""
1265
1266
def decorator(func):
1267
func._dbus_annotations = annotations
1268
return func
1269
759
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
760
return func
1270
761
return decorator
1271
762
1272
763
1273
764
class DBusPropertyException(dbus.exceptions.DBusException):
1274
765
"""A base class for D-Bus property-related exceptions
1275
766
"""
1276
pass
767
def __unicode__(self):
768
return unicode(str(self))
1277
769
1278
770
1279
771
class DBusPropertyAccessException(DBusPropertyException):
1288
780
pass
1289
781
1290
782
1291
class DBusObjectWithAnnotations(dbus.service.Object):
1292
"""A D-Bus object with annotations.
1293
1294
Classes inheriting from this can use the dbus_annotations
1295
decorator to add annotations to methods or signals.
1296
"""
1297
1298
@staticmethod
1299
def _is_dbus_thing(thing):
1300
"""Returns a function testing if an attribute is a D-Bus thing
1301
1302
If called like _is_dbus_thing("method") it returns a function
1303
suitable for use as predicate to inspect.getmembers().
1304
"""
1305
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1306
False)
1307
1308
def _get_all_dbus_things(self, thing):
1309
"""Returns a generator of (name, attribute) pairs
1310
"""
1311
return ((getattr(athing.__get__(self), "_dbus_name", name),
1312
athing.__get__(self))
1313
for cls in self.__class__.__mro__
1314
for name, athing in
1315
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1316
1317
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1318
out_signature="s",
1319
path_keyword='object_path',
1320
connection_keyword='connection')
1321
def Introspect(self, object_path, connection):
1322
"""Overloading of standard D-Bus method.
1323
1324
Inserts annotation tags on methods and signals.
1325
"""
1326
xmlstring = dbus.service.Object.Introspect(self, object_path,
1327
connection)
1328
try:
1329
document = xml.dom.minidom.parseString(xmlstring)
1330
1331
for if_tag in document.getElementsByTagName("interface"):
1332
# Add annotation tags
1333
for typ in ("method", "signal"):
1334
for tag in if_tag.getElementsByTagName(typ):
1335
annots = dict()
1336
for name, prop in (self.
1337
_get_all_dbus_things(typ)):
1338
if (name == tag.getAttribute("name")
1339
and prop._dbus_interface
1340
== if_tag.getAttribute("name")):
1341
annots.update(getattr(
1342
prop, "_dbus_annotations", {}))
1343
for name, value in annots.items():
1344
ann_tag = document.createElement(
1345
"annotation")
1346
ann_tag.setAttribute("name", name)
1347
ann_tag.setAttribute("value", value)
1348
tag.appendChild(ann_tag)
1349
# Add interface annotation tags
1350
for annotation, value in dict(
1351
itertools.chain.from_iterable(
1352
annotations().items()
1353
for name, annotations
1354
in self._get_all_dbus_things("interface")
1355
if name == if_tag.getAttribute("name")
1356
)).items():
1357
ann_tag = document.createElement("annotation")
1358
ann_tag.setAttribute("name", annotation)
1359
ann_tag.setAttribute("value", value)
1360
if_tag.appendChild(ann_tag)
1361
# Fix argument name for the Introspect method itself
1362
if (if_tag.getAttribute("name")
1363
== dbus.INTROSPECTABLE_IFACE):
1364
for cn in if_tag.getElementsByTagName("method"):
1365
if cn.getAttribute("name") == "Introspect":
1366
for arg in cn.getElementsByTagName("arg"):
1367
if (arg.getAttribute("direction")
1368
== "out"):
1369
arg.setAttribute("name",
1370
"xml_data")
1371
xmlstring = document.toxml("utf-8")
1372
document.unlink()
1373
except (AttributeError, xml.dom.DOMException,
1374
xml.parsers.expat.ExpatError) as error:
1375
logger.error("Failed to override Introspection method",
1376
exc_info=error)
1377
return xmlstring
1378
1379
1380
class DBusObjectWithProperties(DBusObjectWithAnnotations):
783
class DBusObjectWithProperties(dbus.service.Object):
1381
784
"""A D-Bus object with properties.
1382
785
1383
786
Classes inheriting from this can use the dbus_service_property
1384
787
decorator to expose methods as D-Bus properties. It exposes the
1385
788
standard Get(), Set(), and GetAll() methods on the D-Bus.
1386
789
"""
1387
790
791
@staticmethod
792
def _is_dbus_property(obj):
793
return getattr(obj, "_dbus_is_property", False)
794
795
def _get_all_dbus_properties(self):
796
"""Returns a generator of (name, attribute) pairs
797
"""
798
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
799
for cls in self.__class__.__mro__
800
for name, prop in
801
inspect.getmembers(cls, self._is_dbus_property))
802
1388
803
def _get_dbus_property(self, interface_name, property_name):
1389
804
"""Returns a bound method if one exists which is a D-Bus
1390
805
property with the specified name and interface.
1391
806
"""
1392
for cls in self.__class__.__mro__:
1393
for name, value in inspect.getmembers(
1394
cls, self._is_dbus_thing("property")):
807
for cls in self.__class__.__mro__:
808
for name, value in (inspect.getmembers
809
(cls, self._is_dbus_property)):
1395
810
if (value._dbus_name == property_name
1396
811
and value._dbus_interface == interface_name):
1397
812
return value.__get__(self)
1398
813
1399
814
# No such property
1400
raise DBusPropertyNotFound("{}:{}.{}".format(
1401
self.dbus_object_path, interface_name, property_name))
1402
1403
@classmethod
1404
def _get_all_interface_names(cls):
1405
"""Get a sequence of all interfaces supported by an object"""
1406
return (name for name in set(getattr(getattr(x, attr),
1407
"_dbus_interface", None)
1408
for x in (inspect.getmro(cls))
1409
for attr in dir(x))
1410
if name is not None)
1411
1412
@dbus.service.method(dbus.PROPERTIES_IFACE,
1413
in_signature="ss",
815
raise DBusPropertyNotFound(self.dbus_object_path + ":"
816
+ interface_name + "."
817
+ property_name)
818
819
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1414
820
out_signature="v")
1415
821
def Get(self, interface_name, property_name):
1416
822
"""Standard D-Bus property Get() method, see D-Bus standard.
1422
828
if not hasattr(value, "variant_level"):
1423
829
return value
1424
830
return type(value)(value, variant_level=value.variant_level+1)
1425
831
1426
832
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1427
833
def Set(self, interface_name, property_name, value):
1428
834
"""Standard D-Bus property Set() method, see D-Bus standard.
1434
840
# The byte_arrays option is not supported yet on
1435
841
# signatures other than "ay".
1436
842
if prop._dbus_signature != "ay":
1437
raise ValueError("Byte arrays not supported for non-"
1438
"'ay' signature {!r}"
1439
.format(prop._dbus_signature))
1440
value = dbus.ByteArray(bytes(value))
843
raise ValueError
844
value = dbus.ByteArray(''.join(unichr(byte)
845
for byte in value))
1441
846
prop(value)
1442
1443
@dbus.service.method(dbus.PROPERTIES_IFACE,
1444
in_signature="s",
847
848
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1445
849
out_signature="a{sv}")
1446
850
def GetAll(self, interface_name):
1447
851
"""Standard D-Bus property GetAll() method, see D-Bus
1448
852
standard.
1449
853
1450
854
Note: Will not include properties with access="write".
1451
855
"""
1452
856
properties = {}
1453
for name, prop in self._get_all_dbus_things("property"):
857
for name, prop in self._get_all_dbus_properties():
1454
858
if (interface_name
1455
859
and interface_name != prop._dbus_interface):
1456
860
# Interface non-empty but did not match
1462
866
if not hasattr(value, "variant_level"):
1463
867
properties[name] = value
1464
868
continue
1465
properties[name] = type(value)(
1466
value, variant_level=value.variant_level + 1)
869
properties[name] = type(value)(value, variant_level=
870
value.variant_level+1)
1467
871
return dbus.Dictionary(properties, signature="sv")
1468
1469
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1470
def PropertiesChanged(self, interface_name, changed_properties,
1471
invalidated_properties):
1472
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1473
standard.
1474
"""
1475
pass
1476
872
1477
873
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1478
874
out_signature="s",
1479
875
path_keyword='object_path',
1480
876
connection_keyword='connection')
1481
877
def Introspect(self, object_path, connection):
1482
"""Overloading of standard D-Bus method.
1483
1484
Inserts property tags and interface annotation tags.
878
"""Standard D-Bus method, overloaded to insert property tags.
1485
879
"""
1486
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1487
object_path,
1488
connection)
880
xmlstring = dbus.service.Object.Introspect(self, object_path,
881
connection)
1489
882
try:
1490
883
document = xml.dom.minidom.parseString(xmlstring)
1491
1492
884
def make_tag(document, name, prop):
1493
885
e = document.createElement("property")
1494
886
e.setAttribute("name", name)
1495
887
e.setAttribute("type", prop._dbus_signature)
1496
888
e.setAttribute("access", prop._dbus_access)
1497
889
return e
1498
1499
890
for if_tag in document.getElementsByTagName("interface"):
1500
# Add property tags
1501
891
for tag in (make_tag(document, name, prop)
1502
892
for name, prop
1503
in self._get_all_dbus_things("property")
893
in self._get_all_dbus_properties()
1504
894
if prop._dbus_interface
1505
895
== if_tag.getAttribute("name")):
1506
896
if_tag.appendChild(tag)
1507
# Add annotation tags for properties
1508
for tag in if_tag.getElementsByTagName("property"):
1509
annots = dict()
1510
for name, prop in self._get_all_dbus_things(
1511
"property"):
1512
if (name == tag.getAttribute("name")
1513
and prop._dbus_interface
1514
== if_tag.getAttribute("name")):
1515
annots.update(getattr(
1516
prop, "_dbus_annotations", {}))
1517
for name, value in annots.items():
1518
ann_tag = document.createElement(
1519
"annotation")
1520
ann_tag.setAttribute("name", name)
1521
ann_tag.setAttribute("value", value)
1522
tag.appendChild(ann_tag)
1523
897
# Add the names to the return values for the
1524
898
# "org.freedesktop.DBus.Properties" methods
1525
899
if (if_tag.getAttribute("name")
1540
914
except (AttributeError, xml.dom.DOMException,
1541
915
xml.parsers.expat.ExpatError) as error:
1542
916
logger.error("Failed to override Introspection method",
1543
exc_info=error)
1544
return xmlstring
1545
1546
1547
try:
1548
dbus.OBJECT_MANAGER_IFACE
1549
except AttributeError:
1550
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1551
1552
1553
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1554
"""A D-Bus object with an ObjectManager.
1555
1556
Classes inheriting from this exposes the standard
1557
GetManagedObjects call and the InterfacesAdded and
1558
InterfacesRemoved signals on the standard
1559
"org.freedesktop.DBus.ObjectManager" interface.
1560
1561
Note: No signals are sent automatically; they must be sent
1562
manually.
1563
"""
1564
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1565
out_signature="a{oa{sa{sv}}}")
1566
def GetManagedObjects(self):
1567
"""This function must be overridden"""
1568
raise NotImplementedError()
1569
1570
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1571
signature="oa{sa{sv}}")
1572
def InterfacesAdded(self, object_path, interfaces_and_properties):
1573
pass
1574
1575
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1576
def InterfacesRemoved(self, object_path, interfaces):
1577
pass
1578
1579
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1580
out_signature="s",
1581
path_keyword='object_path',
1582
connection_keyword='connection')
1583
def Introspect(self, object_path, connection):
1584
"""Overloading of standard D-Bus method.
1585
1586
Override return argument name of GetManagedObjects to be
1587
"objpath_interfaces_and_properties"
1588
"""
1589
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1590
object_path,
1591
connection)
1592
try:
1593
document = xml.dom.minidom.parseString(xmlstring)
1594
1595
for if_tag in document.getElementsByTagName("interface"):
1596
# Fix argument name for the GetManagedObjects method
1597
if (if_tag.getAttribute("name")
1598
== dbus.OBJECT_MANAGER_IFACE):
1599
for cn in if_tag.getElementsByTagName("method"):
1600
if (cn.getAttribute("name")
1601
== "GetManagedObjects"):
1602
for arg in cn.getElementsByTagName("arg"):
1603
if (arg.getAttribute("direction")
1604
== "out"):
1605
arg.setAttribute(
1606
"name",
1607
"objpath_interfaces"
1608
"_and_properties")
1609
xmlstring = document.toxml("utf-8")
1610
document.unlink()
1611
except (AttributeError, xml.dom.DOMException,
1612
xml.parsers.expat.ExpatError) as error:
1613
logger.error("Failed to override Introspection method",
1614
exc_info=error)
1615
return xmlstring
1616
1617
1618
def datetime_to_dbus(dt, variant_level=0):
917
error)
918
return xmlstring
919
920
921
def datetime_to_dbus (dt, variant_level=0):
1619
922
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1620
923
if dt is None:
1621
return dbus.String("", variant_level=variant_level)
1622
return dbus.String(dt.isoformat(), variant_level=variant_level)
1623
1624
1625
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1626
"""A class decorator; applied to a subclass of
1627
dbus.service.Object, it will add alternate D-Bus attributes with
1628
interface names according to the "alt_interface_names" mapping.
1629
Usage:
1630
1631
@alternate_dbus_interfaces({"org.example.Interface":
1632
"net.example.AlternateInterface"})
1633
class SampleDBusObject(dbus.service.Object):
1634
@dbus.service.method("org.example.Interface")
1635
def SampleDBusMethod():
1636
pass
1637
1638
The above "SampleDBusMethod" on "SampleDBusObject" will be
1639
reachable via two interfaces: "org.example.Interface" and
1640
"net.example.AlternateInterface", the latter of which will have
1641
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1642
"true", unless "deprecate" is passed with a False value.
1643
1644
This works for methods and signals, and also for D-Bus properties
1645
(from DBusObjectWithProperties) and interfaces (from the
1646
dbus_interface_annotations decorator).
924
return dbus.String("", variant_level = variant_level)
925
return dbus.String(dt.isoformat(),
926
variant_level=variant_level)
927
928
929
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
930
.__metaclass__):
931
"""Applied to an empty subclass of a D-Bus object, this metaclass
932
will add additional D-Bus attributes matching a certain pattern.
1647
933
"""
1648
1649
def wrapper(cls):
1650
for orig_interface_name, alt_interface_name in (
1651
alt_interface_names.items()):
1652
attr = {}
1653
interface_names = set()
1654
# Go though all attributes of the class
1655
for attrname, attribute in inspect.getmembers(cls):
934
def __new__(mcs, name, bases, attr):
935
# Go through all the base classes which could have D-Bus
936
# methods, signals, or properties in them
937
for base in (b for b in bases
938
if issubclass(b, dbus.service.Object)):
939
# Go though all attributes of the base class
940
for attrname, attribute in inspect.getmembers(base):
1656
941
# Ignore non-D-Bus attributes, and D-Bus attributes
1657
942
# with the wrong interface name
1658
943
if (not hasattr(attribute, "_dbus_interface")
1659
or not attribute._dbus_interface.startswith(
1660
orig_interface_name)):
944
or not attribute._dbus_interface
945
.startswith("se.recompile.Mandos")):
1661
946
continue
1662
947
# Create an alternate D-Bus interface name based on
1663
948
# the current name
1664
alt_interface = attribute._dbus_interface.replace(
1665
orig_interface_name, alt_interface_name)
1666
interface_names.add(alt_interface)
949
alt_interface = (attribute._dbus_interface
950
.replace("se.recompile.Mandos",
951
"se.bsnet.fukt.Mandos"))
1667
952
# Is this a D-Bus signal?
1668
953
if getattr(attribute, "_dbus_is_signal", False):
1669
# Extract the original non-method undecorated
1670
# function by black magic
1671
if sys.version_info.major == 2:
1672
nonmethod_func = (dict(
954
# Extract the original non-method function by
955
# black magic
956
nonmethod_func = (dict(
1673
957
zip(attribute.func_code.co_freevars,
1674
attribute.__closure__))
1675
["func"].cell_contents)
1676
else:
1677
nonmethod_func = (dict(
1678
zip(attribute.__code__.co_freevars,
1679
attribute.__closure__))
1680
["func"].cell_contents)
958
attribute.__closure__))["func"]
959
.cell_contents)
1681
960
# Create a new, but exactly alike, function
1682
961
# object, and decorate it to be a new D-Bus signal
1683
962
# with the alternate D-Bus interface name
1684
new_function = copy_function(nonmethod_func)
1685
new_function = (dbus.service.signal(
1686
alt_interface,
1687
attribute._dbus_signature)(new_function))
1688
# Copy annotations, if any
1689
try:
1690
new_function._dbus_annotations = dict(
1691
attribute._dbus_annotations)
1692
except AttributeError:
1693
pass
1694
963
new_function = (dbus.service.signal
964
(alt_interface,
965
attribute._dbus_signature)
966
(types.FunctionType(
967
nonmethod_func.func_code,
968
nonmethod_func.func_globals,
969
nonmethod_func.func_name,
970
nonmethod_func.func_defaults,
971
nonmethod_func.func_closure)))
1695
972
# Define a creator of a function to call both the
1696
# original and alternate functions, so both the
1697
# original and alternate signals gets sent when
1698
# the function is called
973
# old and new functions, so both the old and new
974
# signals gets sent when the function is called
1699
975
def fixscope(func1, func2):
1700
976
"""This function is a scope container to pass
1701
977
func1 and func2 to the "call_both" function
1702
978
outside of its arguments"""
1703
1704
@functools.wraps(func2)
1705
979
def call_both(*args, **kwargs):
1706
980
"""This function will emit two D-Bus
1707
981
signals by calling func1 and func2"""
1708
982
func1(*args, **kwargs)
1709
983
func2(*args, **kwargs)
1710
# Make wrapper function look like a D-Bus
1711
# signal
1712
for name, attr in inspect.getmembers(func2):
1713
if name.startswith("_dbus_"):
1714
setattr(call_both, name, attr)
1715
1716
984
return call_both
1717
985
# Create the "call_both" function and add it to
1718
986
# the class
1719
attr[attrname] = fixscope(attribute, new_function)
987
attr[attrname] = fixscope(attribute,
988
new_function)
1720
989
# Is this a D-Bus method?
1721
990
elif getattr(attribute, "_dbus_is_method", False):
1722
991
# Create a new, but exactly alike, function
1723
992
# object. Decorate it to be a new D-Bus method
1724
993
# with the alternate D-Bus interface name. Add it
1725
994
# to the class.
1726
attr[attrname] = (
1727
dbus.service.method(
1728
alt_interface,
1729
attribute._dbus_in_signature,
1730
attribute._dbus_out_signature)
1731
(copy_function(attribute)))
1732
# Copy annotations, if any
1733
try:
1734
attr[attrname]._dbus_annotations = dict(
1735
attribute._dbus_annotations)
1736
except AttributeError:
1737
pass
995
attr[attrname] = (dbus.service.method
996
(alt_interface,
997
attribute._dbus_in_signature,
998
attribute._dbus_out_signature)
999
(types.FunctionType
1000
(attribute.func_code,
1001
attribute.func_globals,
1002
attribute.func_name,
1003
attribute.func_defaults,
1004
attribute.func_closure)))
1738
1005
# Is this a D-Bus property?
1739
1006
elif getattr(attribute, "_dbus_is_property", False):
1740
1007
# Create a new, but exactly alike, function
1741
1008
# object, and decorate it to be a new D-Bus
1742
1009
# property with the alternate D-Bus interface
1743
1010
# name. Add it to the class.
1744
attr[attrname] = (dbus_service_property(
1745
alt_interface, attribute._dbus_signature,
1746
attribute._dbus_access,
1747
attribute._dbus_get_args_options
1748
["byte_arrays"])
1749
(copy_function(attribute)))
1750
# Copy annotations, if any
1751
try:
1752
attr[attrname]._dbus_annotations = dict(
1753
attribute._dbus_annotations)
1754
except AttributeError:
1755
pass
1756
# Is this a D-Bus interface?
1757
elif getattr(attribute, "_dbus_is_interface", False):
1758
# Create a new, but exactly alike, function
1759
# object. Decorate it to be a new D-Bus interface
1760
# with the alternate D-Bus interface name. Add it
1761
# to the class.
1762
attr[attrname] = (
1763
dbus_interface_annotations(alt_interface)
1764
(copy_function(attribute)))
1765
if deprecate:
1766
# Deprecate all alternate interfaces
1767
iname = "_AlternateDBusNames_interface_annotation{}"
1768
for interface_name in interface_names:
1769
1770
@dbus_interface_annotations(interface_name)
1771
def func(self):
1772
return {"org.freedesktop.DBus.Deprecated":
1773
"true"}
1774
# Find an unused name
1775
for aname in (iname.format(i)
1776
for i in itertools.count()):
1777
if aname not in attr:
1778
attr[aname] = func
1779
break
1780
if interface_names:
1781
# Replace the class with a new subclass of it with
1782
# methods, signals, etc. as created above.
1783
if sys.version_info.major == 2:
1784
cls = type(b"{}Alternate".format(cls.__name__),
1785
(cls, ), attr)
1786
else:
1787
cls = type("{}Alternate".format(cls.__name__),
1788
(cls, ), attr)
1789
return cls
1790
1791
return wrapper
1792
1793
1794
@alternate_dbus_interfaces({"se.recompile.Mandos":
1795
"se.bsnet.fukt.Mandos"})
1011
attr[attrname] = (dbus_service_property
1012
(alt_interface,
1013
attribute._dbus_signature,
1014
attribute._dbus_access,
1015
attribute
1016
._dbus_get_args_options
1017
["byte_arrays"])
1018
(types.FunctionType
1019
(attribute.func_code,
1020
attribute.func_globals,
1021
attribute.func_name,
1022
attribute.func_defaults,
1023
attribute.func_closure)))
1024
return type.__new__(mcs, name, bases, attr)
1025
1026
1796
1027
class ClientDBus(Client, DBusObjectWithProperties):
1797
1028
"""A Client class using D-Bus
1798
1029
1799
1030
Attributes:
1800
1031
dbus_object_path: dbus.ObjectPath
1801
1032
bus: dbus.SystemBus()
1802
1033
"""
1803
1034
1804
1035
runtime_expansions = (Client.runtime_expansions
1805
+ ("dbus_object_path", ))
1806
1807
_interface = "se.recompile.Mandos.Client"
1808
1036
+ ("dbus_object_path",))
1037
1809
1038
# dbus.service.Object doesn't use super(), so we can't either.
1810
1811
def __init__(self, bus=None, *args, **kwargs):
1039
1040
def __init__(self, bus = None, *args, **kwargs):
1812
1041
self.bus = bus
1813
1042
Client.__init__(self, *args, **kwargs)
1043
self._approvals_pending = 0
1044
1045
self._approvals_pending = 0
1814
1046
# Only now, when this client is initialized, can it show up on
1815
1047
# the D-Bus
1816
client_object_name = str(self.name).translate(
1048
client_object_name = unicode(self.name).translate(
1817
1049
{ord("."): ord("_"),
1818
1050
ord("-"): ord("_")})
1819
self.dbus_object_path = dbus.ObjectPath(
1820
"/clients/" + client_object_name)
1051
self.dbus_object_path = (dbus.ObjectPath
1052
("/clients/" + client_object_name))
1821
1053
DBusObjectWithProperties.__init__(self, self.bus,
1822
1054
self.dbus_object_path)
1823
1824
def notifychangeproperty(transform_func, dbus_name,
1825
type_func=lambda x: x,
1826
variant_level=1,
1827
invalidate_only=False,
1828
_interface=_interface):
1055
1056
def notifychangeproperty(transform_func,
1057
dbus_name, type_func=lambda x: x,
1058
variant_level=1):
1829
1059
""" Modify a variable so that it's a property which announces
1830
1060
its changes to DBus.
1831
1061
1832
1062
transform_fun: Function that takes a value and a variant_level
1833
1063
and transforms it to a D-Bus type.
1834
1064
dbus_name: D-Bus name of the variable
1836
1066
to the D-Bus. Default: no transform
1837
1067
variant_level: D-Bus variant level. Default: 1
1838
1068
"""
1839
attrname = "_{}".format(dbus_name)
1840
1069
attrname = "_{0}".format(dbus_name)
1841
1070
def setter(self, value):
1842
1071
if hasattr(self, "dbus_object_path"):
1843
1072
if (not hasattr(self, attrname) or
1844
1073
type_func(getattr(self, attrname, None))
1845
1074
!= type_func(value)):
1846
if invalidate_only:
1847
self.PropertiesChanged(
1848
_interface, dbus.Dictionary(),
1849
dbus.Array((dbus_name, )))
1850
else:
1851
dbus_value = transform_func(
1852
type_func(value),
1853
variant_level=variant_level)
1854
self.PropertyChanged(dbus.String(dbus_name),
1855
dbus_value)
1856
self.PropertiesChanged(
1857
_interface,
1858
dbus.Dictionary({dbus.String(dbus_name):
1859
dbus_value}),
1860
dbus.Array())
1075
dbus_value = transform_func(type_func(value),
1076
variant_level
1077
=variant_level)
1078
self.PropertyChanged(dbus.String(dbus_name),
1079
dbus_value)
1861
1080
setattr(self, attrname, value)
1862
1081
1863
1082
return property(lambda self: getattr(self, attrname), setter)
1864
1083
1084
1865
1085
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1866
1086
approvals_pending = notifychangeproperty(dbus.Boolean,
1867
1087
"ApprovalPending",
1868
type_func=bool)
1088
type_func = bool)
1869
1089
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1870
1090
last_enabled = notifychangeproperty(datetime_to_dbus,
1871
1091
"LastEnabled")
1872
checker = notifychangeproperty(
1873
dbus.Boolean, "CheckerRunning",
1874
type_func=lambda checker: checker is not None)
1092
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1093
type_func = lambda checker:
1094
checker is not None)
1875
1095
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1876
1096
"LastCheckedOK")
1877
last_checker_status = notifychangeproperty(dbus.Int16,
1878
"LastCheckerStatus")
1879
1097
last_approval_request = notifychangeproperty(
1880
1098
datetime_to_dbus, "LastApprovalRequest")
1881
1099
approved_by_default = notifychangeproperty(dbus.Boolean,
1882
1100
"ApprovedByDefault")
1883
approval_delay = notifychangeproperty(
1884
dbus.UInt64, "ApprovalDelay",
1885
type_func=lambda td: td.total_seconds() * 1000)
1101
approval_delay = notifychangeproperty(dbus.UInt64,
1102
"ApprovalDelay",
1103
type_func =
1104
timedelta_to_milliseconds)
1886
1105
approval_duration = notifychangeproperty(
1887
1106
dbus.UInt64, "ApprovalDuration",
1888
type_func=lambda td: td.total_seconds() * 1000)
1107
type_func = timedelta_to_milliseconds)
1889
1108
host = notifychangeproperty(dbus.String, "Host")
1890
timeout = notifychangeproperty(
1891
dbus.UInt64, "Timeout",
1892
type_func=lambda td: td.total_seconds() * 1000)
1109
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1110
type_func =
1111
timedelta_to_milliseconds)
1893
1112
extended_timeout = notifychangeproperty(
1894
1113
dbus.UInt64, "ExtendedTimeout",
1895
type_func=lambda td: td.total_seconds() * 1000)
1896
interval = notifychangeproperty(
1897
dbus.UInt64, "Interval",
1898
type_func=lambda td: td.total_seconds() * 1000)
1114
type_func = timedelta_to_milliseconds)
1115
interval = notifychangeproperty(dbus.UInt64,
1116
"Interval",
1117
type_func =
1118
timedelta_to_milliseconds)
1899
1119
checker_command = notifychangeproperty(dbus.String, "Checker")
1900
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1901
invalidate_only=True)
1902
1120
1903
1121
del notifychangeproperty
1904
1122
1905
1123
def __del__(self, *args, **kwargs):
1906
1124
try:
1907
1125
self.remove_from_connection()
1910
1128
if hasattr(DBusObjectWithProperties, "__del__"):
1911
1129
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1912
1130
Client.__del__(self, *args, **kwargs)
1913
1914
def checker_callback(self, source, condition,
1915
connection, command, *args, **kwargs):
1916
ret = Client.checker_callback(self, source, condition,
1917
connection, command, *args,
1918
**kwargs)
1919
exitstatus = self.last_checker_status
1920
if exitstatus >= 0:
1131
1132
def checker_callback(self, pid, condition, command,
1133
*args, **kwargs):
1134
self.checker_callback_tag = None
1135
self.checker = None
1136
if os.WIFEXITED(condition):
1137
exitstatus = os.WEXITSTATUS(condition)
1921
1138
# Emit D-Bus signal
1922
1139
self.CheckerCompleted(dbus.Int16(exitstatus),
1923
# This is specific to GNU libC
1924
dbus.Int64(exitstatus << 8),
1140
dbus.Int64(condition),
1925
1141
dbus.String(command))
1926
1142
else:
1927
1143
# Emit D-Bus signal
1928
1144
self.CheckerCompleted(dbus.Int16(-1),
1929
dbus.Int64(
1930
# This is specific to GNU libC
1931
(exitstatus << 8)
1932
| self.last_checker_signal),
1145
dbus.Int64(condition),
1933
1146
dbus.String(command))
1934
return ret
1935
1147
1148
return Client.checker_callback(self, pid, condition, command,
1149
*args, **kwargs)
1150
1936
1151
def start_checker(self, *args, **kwargs):
1937
old_checker_pid = getattr(self.checker, "pid", None)
1152
old_checker = self.checker
1153
if self.checker is not None:
1154
old_checker_pid = self.checker.pid
1155
else:
1156
old_checker_pid = None
1938
1157
r = Client.start_checker(self, *args, **kwargs)
1939
1158
# Only if new checker process was started
1940
1159
if (self.checker is not None
1942
1161
# Emit D-Bus signal
1943
1162
self.CheckerStarted(self.current_checker_command)
1944
1163
return r
1945
1164
1946
1165
def _reset_approved(self):
1947
1166
self.approved = None
1948
1167
return False
1949
1168
1950
1169
def approve(self, value=True):
1170
self.send_changedstate()
1951
1171
self.approved = value
1952
GLib.timeout_add(int(self.approval_duration.total_seconds()
1953
* 1000), self._reset_approved)
1954
self.send_changedstate()
1955
1956
# D-Bus methods, signals & properties
1957
1958
# Interfaces
1959
1960
# Signals
1961
1172
gobject.timeout_add(timedelta_to_milliseconds
1173
(self.approval_duration),
1174
self._reset_approved)
1175
1176
1177
## D-Bus methods, signals & properties
1178
_interface = "se.recompile.Mandos.Client"
1179
1180
## Signals
1181
1962
1182
# CheckerCompleted - signal
1963
1183
@dbus.service.signal(_interface, signature="nxs")
1964
1184
def CheckerCompleted(self, exitcode, waitstatus, command):
1965
1185
"D-Bus signal"
1966
1186
pass
1967
1187
1968
1188
# CheckerStarted - signal
1969
1189
@dbus.service.signal(_interface, signature="s")
1970
1190
def CheckerStarted(self, command):
1971
1191
"D-Bus signal"
1972
1192
pass
1973
1193
1974
1194
# PropertyChanged - signal
1975
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1976
1195
@dbus.service.signal(_interface, signature="sv")
1977
1196
def PropertyChanged(self, property, value):
1978
1197
"D-Bus signal"
1979
1198
pass
1980
1199
1981
1200
# GotSecret - signal
1982
1201
@dbus.service.signal(_interface)
1983
1202
def GotSecret(self):
1986
1205
server to mandos-client
1987
1206
"""
1988
1207
pass
1989
1208
1990
1209
# Rejected - signal
1991
1210
@dbus.service.signal(_interface, signature="s")
1992
1211
def Rejected(self, reason):
1993
1212
"D-Bus signal"
1994
1213
pass
1995
1214
1996
1215
# NeedApproval - signal
1997
1216
@dbus.service.signal(_interface, signature="tb")
1998
1217
def NeedApproval(self, timeout, default):
1999
1218
"D-Bus signal"
2000
1219
return self.need_approval()
2001
2002
# Methods
2003
1220
1221
# NeRwequest - signal
1222
@dbus.service.signal(_interface, signature="s")
1223
def NewRequest(self, ip):
1224
"""D-Bus signal
1225
Is sent after a client request a password.
1226
"""
1227
pass
1228
1229
## Methods
1230
2004
1231
# Approve - method
2005
1232
@dbus.service.method(_interface, in_signature="b")
2006
1233
def Approve(self, value):
2007
1234
self.approve(value)
2008
1235
2009
1236
# CheckedOK - method
2010
1237
@dbus.service.method(_interface)
2011
1238
def CheckedOK(self):
2012
1239
self.checked_ok()
2013
1240
2014
1241
# Enable - method
2015
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2016
1242
@dbus.service.method(_interface)
2017
1243
def Enable(self):
2018
1244
"D-Bus method"
2019
1245
self.enable()
2020
1246
2021
1247
# StartChecker - method
2022
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2023
1248
@dbus.service.method(_interface)
2024
1249
def StartChecker(self):
2025
1250
"D-Bus method"
2026
1251
self.start_checker()
2027
1252
2028
1253
# Disable - method
2029
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2030
1254
@dbus.service.method(_interface)
2031
1255
def Disable(self):
2032
1256
"D-Bus method"
2033
1257
self.disable()
2034
1258
2035
1259
# StopChecker - method
2036
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2037
1260
@dbus.service.method(_interface)
2038
1261
def StopChecker(self):
2039
1262
self.stop_checker()
2040
2041
# Properties
2042
1263
1264
## Properties
1265
2043
1266
# ApprovalPending - property
2044
1267
@dbus_service_property(_interface, signature="b", access="read")
2045
1268
def ApprovalPending_dbus_property(self):
2046
1269
return dbus.Boolean(bool(self.approvals_pending))
2047
1270
2048
1271
# ApprovedByDefault - property
2049
@dbus_service_property(_interface,
2050
signature="b",
1272
@dbus_service_property(_interface, signature="b",
2051
1273
access="readwrite")
2052
1274
def ApprovedByDefault_dbus_property(self, value=None):
2053
1275
if value is None: # get
2054
1276
return dbus.Boolean(self.approved_by_default)
2055
1277
self.approved_by_default = bool(value)
2056
1278
2057
1279
# ApprovalDelay - property
2058
@dbus_service_property(_interface,
2059
signature="t",
1280
@dbus_service_property(_interface, signature="t",
2060
1281
access="readwrite")
2061
1282
def ApprovalDelay_dbus_property(self, value=None):
2062
1283
if value is None: # get
2063
return dbus.UInt64(self.approval_delay.total_seconds()
2064
* 1000)
1284
return dbus.UInt64(self.approval_delay_milliseconds())
2065
1285
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2066
1286
2067
1287
# ApprovalDuration - property
2068
@dbus_service_property(_interface,
2069
signature="t",
1288
@dbus_service_property(_interface, signature="t",
2070
1289
access="readwrite")
2071
1290
def ApprovalDuration_dbus_property(self, value=None):
2072
1291
if value is None: # get
2073
return dbus.UInt64(self.approval_duration.total_seconds()
2074
* 1000)
1292
return dbus.UInt64(timedelta_to_milliseconds(
1293
self.approval_duration))
2075
1294
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2076
1295
2077
1296
# Name - property
2078
@dbus_annotations(
2079
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2080
1297
@dbus_service_property(_interface, signature="s", access="read")
2081
1298
def Name_dbus_property(self):
2082
1299
return dbus.String(self.name)
2083
2084
# KeyID - property
2085
@dbus_annotations(
2086
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2087
@dbus_service_property(_interface, signature="s", access="read")
2088
def KeyID_dbus_property(self):
2089
return dbus.String(self.key_id)
2090
1300
2091
1301
# Fingerprint - property
2092
@dbus_annotations(
2093
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2094
1302
@dbus_service_property(_interface, signature="s", access="read")
2095
1303
def Fingerprint_dbus_property(self):
2096
1304
return dbus.String(self.fingerprint)
2097
1305
2098
1306
# Host - property
2099
@dbus_service_property(_interface,
2100
signature="s",
1307
@dbus_service_property(_interface, signature="s",
2101
1308
access="readwrite")
2102
1309
def Host_dbus_property(self, value=None):
2103
1310
if value is None: # get
2104
1311
return dbus.String(self.host)
2105
self.host = str(value)
2106
1312
self.host = unicode(value)
1313
2107
1314
# Created - property
2108
@dbus_annotations(
2109
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2110
1315
@dbus_service_property(_interface, signature="s", access="read")
2111
1316
def Created_dbus_property(self):
2112
1317
return datetime_to_dbus(self.created)
2113
1318
2114
1319
# LastEnabled - property
2115
1320
@dbus_service_property(_interface, signature="s", access="read")
2116
1321
def LastEnabled_dbus_property(self):
2117
1322
return datetime_to_dbus(self.last_enabled)
2118
1323
2119
1324
# Enabled - property
2120
@dbus_service_property(_interface,
2121
signature="b",
1325
@dbus_service_property(_interface, signature="b",
2122
1326
access="readwrite")
2123
1327
def Enabled_dbus_property(self, value=None):
2124
1328
if value is None: # get
2127
1331
self.enable()
2128
1332
else:
2129
1333
self.disable()
2130
1334
2131
1335
# LastCheckedOK - property
2132
@dbus_service_property(_interface,
2133
signature="s",
1336
@dbus_service_property(_interface, signature="s",
2134
1337
access="readwrite")
2135
1338
def LastCheckedOK_dbus_property(self, value=None):
2136
1339
if value is not None:
2137
1340
self.checked_ok()
2138
1341
return
2139
1342
return datetime_to_dbus(self.last_checked_ok)
2140
2141
# LastCheckerStatus - property
2142
@dbus_service_property(_interface, signature="n", access="read")
2143
def LastCheckerStatus_dbus_property(self):
2144
return dbus.Int16(self.last_checker_status)
2145
1343
2146
1344
# Expires - property
2147
1345
@dbus_service_property(_interface, signature="s", access="read")
2148
1346
def Expires_dbus_property(self):
2149
1347
return datetime_to_dbus(self.expires)
2150
1348
2151
1349
# LastApprovalRequest - property
2152
1350
@dbus_service_property(_interface, signature="s", access="read")
2153
1351
def LastApprovalRequest_dbus_property(self):
2154
1352
return datetime_to_dbus(self.last_approval_request)
2155
1353
2156
1354
# Timeout - property
2157
@dbus_service_property(_interface,
2158
signature="t",
1355
@dbus_service_property(_interface, signature="t",
2159
1356
access="readwrite")
2160
1357
def Timeout_dbus_property(self, value=None):
2161
1358
if value is None: # get
2162
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2163
old_timeout = self.timeout
1359
return dbus.UInt64(self.timeout_milliseconds())
2164
1360
self.timeout = datetime.timedelta(0, 0, 0, value)
2165
# Reschedule disabling
2166
if self.enabled:
2167
now = datetime.datetime.utcnow()
2168
self.expires += self.timeout - old_timeout
2169
if self.expires <= now:
2170
# The timeout has passed
2171
self.disable()
2172
else:
2173
if (getattr(self, "disable_initiator_tag", None)
2174
is None):
2175
return
2176
GLib.source_remove(self.disable_initiator_tag)
2177
self.disable_initiator_tag = GLib.timeout_add(
2178
int((self.expires - now).total_seconds() * 1000),
2179
self.disable)
2180
1361
if getattr(self, "disable_initiator_tag", None) is None:
1362
return
1363
# Reschedule timeout
1364
gobject.source_remove(self.disable_initiator_tag)
1365
self.disable_initiator_tag = None
1366
self.expires = None
1367
time_to_die = timedelta_to_milliseconds((self
1368
.last_checked_ok
1369
+ self.timeout)
1370
- datetime.datetime
1371
.utcnow())
1372
if time_to_die <= 0:
1373
# The timeout has passed
1374
self.disable()
1375
else:
1376
self.expires = (datetime.datetime.utcnow()
1377
+ datetime.timedelta(milliseconds =
1378
time_to_die))
1379
self.disable_initiator_tag = (gobject.timeout_add
1380
(time_to_die, self.disable))
1381
2181
1382
# ExtendedTimeout - property
2182
@dbus_service_property(_interface,
2183
signature="t",
1383
@dbus_service_property(_interface, signature="t",
2184
1384
access="readwrite")
2185
1385
def ExtendedTimeout_dbus_property(self, value=None):
2186
1386
if value is None: # get
2187
return dbus.UInt64(self.extended_timeout.total_seconds()
2188
* 1000)
1387
return dbus.UInt64(self.extended_timeout_milliseconds())
2189
1388
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2190
1389
2191
1390
# Interval - property
2192
@dbus_service_property(_interface,
2193
signature="t",
1391
@dbus_service_property(_interface, signature="t",
2194
1392
access="readwrite")
2195
1393
def Interval_dbus_property(self, value=None):
2196
1394
if value is None: # get
2197
return dbus.UInt64(self.interval.total_seconds() * 1000)
1395
return dbus.UInt64(self.interval_milliseconds())
2198
1396
self.interval = datetime.timedelta(0, 0, 0, value)
2199
1397
if getattr(self, "checker_initiator_tag", None) is None:
2200
1398
return
2201
1399
if self.enabled:
2202
1400
# Reschedule checker run
2203
GLib.source_remove(self.checker_initiator_tag)
2204
self.checker_initiator_tag = GLib.timeout_add(
2205
value, self.start_checker)
2206
self.start_checker() # Start one now, too
2207
1401
gobject.source_remove(self.checker_initiator_tag)
1402
self.checker_initiator_tag = (gobject.timeout_add
1403
(value, self.start_checker))
1404
self.start_checker() # Start one now, too
1405
2208
1406
# Checker - property
2209
@dbus_service_property(_interface,
2210
signature="s",
1407
@dbus_service_property(_interface, signature="s",
2211
1408
access="readwrite")
2212
1409
def Checker_dbus_property(self, value=None):
2213
1410
if value is None: # get
2214
1411
return dbus.String(self.checker_command)
2215
self.checker_command = str(value)
2216
1412
self.checker_command = unicode(value)
1413
2217
1414
# CheckerRunning - property
2218
@dbus_service_property(_interface,
2219
signature="b",
1415
@dbus_service_property(_interface, signature="b",
2220
1416
access="readwrite")
2221
1417
def CheckerRunning_dbus_property(self, value=None):
2222
1418
if value is None: # get
2225
1421
self.start_checker()
2226
1422
else:
2227
1423
self.stop_checker()
2228
1424
2229
1425
# ObjectPath - property
2230
@dbus_annotations(
2231
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2232
"org.freedesktop.DBus.Deprecated": "true"})
2233
1426
@dbus_service_property(_interface, signature="o", access="read")
2234
1427
def ObjectPath_dbus_property(self):
2235
return self.dbus_object_path # is already a dbus.ObjectPath
2236
1428
return self.dbus_object_path # is already a dbus.ObjectPath
1429
2237
1430
# Secret = property
2238
@dbus_annotations(
2239
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2240
"invalidates"})
2241
@dbus_service_property(_interface,
2242
signature="ay",
2243
access="write",
2244
byte_arrays=True)
1431
@dbus_service_property(_interface, signature="ay",
1432
access="write", byte_arrays=True)
2245
1433
def Secret_dbus_property(self, value):
2246
self.secret = bytes(value)
2247
1434
self.secret = str(value)
1435
2248
1436
del _interface
2249
1437
2250
1438
2251
class ProxyClient:
2252
def __init__(self, child_pipe, key_id, fpr, address):
1439
class ProxyClient(object):
1440
def __init__(self, child_pipe, fpr, address):
2253
1441
self._pipe = child_pipe
2254
self._pipe.send(('init', key_id, fpr, address))
1442
self._pipe.send(('init', fpr, address))
2255
1443
if not self._pipe.recv():
2256
raise KeyError(key_id or fpr)
2257
1444
raise KeyError()
1445
2258
1446
def __getattribute__(self, name):
2259
1447
if name == '_pipe':
2260
1448
return super(ProxyClient, self).__getattribute__(name)
2263
1451
if data[0] == 'data':
2264
1452
return data[1]
2265
1453
if data[0] == 'function':
2266
2267
1454
def func(*args, **kwargs):
2268
1455
self._pipe.send(('funcall', name, args, kwargs))
2269
1456
return self._pipe.recv()[1]
2270
2271
1457
return func
2272
1458
2273
1459
def __setattr__(self, name, value):
2274
1460
if name == '_pipe':
2275
1461
return super(ProxyClient, self).__setattr__(name, value)
2276
1462
self._pipe.send(('setattr', name, value))
2277
1463
2278
1464
1465
class ClientDBusTransitional(ClientDBus):
1466
__metaclass__ = AlternateDBusNamesMetaclass
1467
1468
2279
1469
class ClientHandler(socketserver.BaseRequestHandler, object):
2280
1470
"""A class to handle client connections.
2281
1471
2282
1472
Instantiated once for each connection to handle it.
2283
1473
Note: This will run in its own forked process."""
2284
1474
2285
1475
def handle(self):
2286
1476
with contextlib.closing(self.server.child_pipe) as child_pipe:
2287
1477
logger.info("TCP connection from: %s",
2288
str(self.client_address))
1478
unicode(self.client_address))
2289
1479
logger.debug("Pipe FD: %d",
2290
1480
self.server.child_pipe.fileno())
2291
2292
session = gnutls.ClientSession(self.request)
2293
2294
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2295
# "+AES-256-CBC", "+SHA1",
2296
# "+COMP-NULL", "+CTYPE-OPENPGP",
2297
# "+DHE-DSS"))
1481
1482
session = (gnutls.connection
1483
.ClientSession(self.request,
1484
gnutls.connection
1485
.X509Credentials()))
1486
1487
# Note: gnutls.connection.X509Credentials is really a
1488
# generic GnuTLS certificate credentials object so long as
1489
# no X.509 keys are added to it. Therefore, we can use it
1490
# here despite using OpenPGP certificates.
1491
1492
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1493
# "+AES-256-CBC", "+SHA1",
1494
# "+COMP-NULL", "+CTYPE-OPENPGP",
1495
# "+DHE-DSS"))
2298
1496
# Use a fallback default, since this MUST be set.
2299
1497
priority = self.server.gnutls_priority
2300
1498
if priority is None:
2301
1499
priority = "NORMAL"
2302
gnutls.priority_set_direct(session._c_object,
2303
priority.encode("utf-8"),
2304
None)
2305
1500
(gnutls.library.functions
1501
.gnutls_priority_set_direct(session._c_object,
1502
priority, None))
1503
2306
1504
# Start communication using the Mandos protocol
2307
1505
# Get protocol number
2308
1506
line = self.request.makefile().readline()
2309
1507
logger.debug("Protocol version: %r", line)
2310
1508
try:
2311
1509
if int(line.strip().split()[0]) > 1:
2312
raise RuntimeError(line)
1510
raise RuntimeError
2313
1511
except (ValueError, IndexError, RuntimeError) as error:
2314
1512
logger.error("Unknown protocol version: %s", error)
2315
1513
return
2316
1514
2317
1515
# Start GnuTLS connection
2318
1516
try:
2319
1517
session.handshake()
2320
except gnutls.Error as error:
1518
except gnutls.errors.GNUTLSError as error:
2321
1519
logger.warning("Handshake failed: %s", error)
2322
1520
# Do not run session.bye() here: the session is not
2323
1521
# established. Just abandon the request.
2324
1522
return
2325
1523
logger.debug("Handshake succeeded")
2326
1524
2327
1525
approval_required = False
2328
1526
try:
2329
if gnutls.has_rawpk:
2330
fpr = b""
2331
try:
2332
key_id = self.key_id(
2333
self.peer_certificate(session))
2334
except (TypeError, gnutls.Error) as error:
2335
logger.warning("Bad certificate: %s", error)
2336
return
2337
logger.debug("Key ID: %s", key_id)
2338
2339
else:
2340
key_id = b""
2341
try:
2342
fpr = self.fingerprint(
2343
self.peer_certificate(session))
2344
except (TypeError, gnutls.Error) as error:
2345
logger.warning("Bad certificate: %s", error)
2346
return
2347
logger.debug("Fingerprint: %s", fpr)
2348
2349
try:
2350
client = ProxyClient(child_pipe, key_id, fpr,
1527
try:
1528
fpr = self.fingerprint(self.peer_certificate
1529
(session))
1530
except (TypeError,
1531
gnutls.errors.GNUTLSError) as error:
1532
logger.warning("Bad certificate: %s", error)
1533
return
1534
logger.debug("Fingerprint: %s", fpr)
1535
1536
try:
1537
client = ProxyClient(child_pipe, fpr,
2351
1538
self.client_address)
2352
1539
except KeyError:
2353
1540
return
2354
1541
1542
if self.server.use_dbus:
1543
# Emit D-Bus signal
1544
client.NewRequest(str(self.client_address))
1545
2355
1546
if client.approval_delay:
2356
1547
delay = client.approval_delay
2357
1548
client.approvals_pending += 1
2358
1549
approval_required = True
2359
1550
2360
1551
while True:
2361
1552
if not client.enabled:
2362
1553
logger.info("Client %s is disabled",
2363
client.name)
1554
client.name)
2364
1555
if self.server.use_dbus:
2365
1556
# Emit D-Bus signal
2366
1557
client.Rejected("Disabled")
2367
1558
return
2368
1559
2369
1560
if client.approved or not client.approval_delay:
2370
# We are approved or approval is disabled
1561
#We are approved or approval is disabled
2371
1562
break
2372
1563
elif client.approved is None:
2373
1564
logger.info("Client %s needs approval",
2375
1566
if self.server.use_dbus:
2376
1567
# Emit D-Bus signal
2377
1568
client.NeedApproval(
2378
client.approval_delay.total_seconds()
2379
* 1000, client.approved_by_default)
1569
client.approval_delay_milliseconds(),
1570
client.approved_by_default)
2380
1571
else:
2381
1572
logger.warning("Client %s was not approved",
2382
1573
client.name)
2384
1575
# Emit D-Bus signal
2385
1576
client.Rejected("Denied")
2386
1577
return
2387
2388
# wait until timeout or approved
1578
1579
#wait until timeout or approved
2389
1580
time = datetime.datetime.now()
2390
1581
client.changedstate.acquire()
2391
client.changedstate.wait(delay.total_seconds())
1582
(client.changedstate.wait
1583
(float(client.timedelta_to_milliseconds(delay)
1584
/ 1000)))
2392
1585
client.changedstate.release()
2393
1586
time2 = datetime.datetime.now()
2394
1587
if (time2 - time) >= delay:
2404
1597
break
2405
1598
else:
2406
1599
delay -= time2 - time
2407
2408
try:
2409
session.send(client.secret)
2410
except gnutls.Error as error:
2411
logger.warning("gnutls send failed",
2412
exc_info=error)
2413
return
2414
1600
1601
sent_size = 0
1602
while sent_size < len(client.secret):
1603
try:
1604
sent = session.send(client.secret[sent_size:])
1605
except gnutls.errors.GNUTLSError as error:
1606
logger.warning("gnutls send failed")
1607
return
1608
logger.debug("Sent: %d, remaining: %d",
1609
sent, len(client.secret)
1610
- (sent_size + sent))
1611
sent_size += sent
1612
2415
1613
logger.info("Sending secret to %s", client.name)
2416
1614
# bump the timeout using extended_timeout
2417
client.bump_timeout(client.extended_timeout)
1615
client.checked_ok(client.extended_timeout)
2418
1616
if self.server.use_dbus:
2419
1617
# Emit D-Bus signal
2420
1618
client.GotSecret()
2421
1619
2422
1620
finally:
2423
1621
if approval_required:
2424
1622
client.approvals_pending -= 1
2425
1623
try:
2426
1624
session.bye()
2427
except gnutls.Error as error:
2428
logger.warning("GnuTLS bye failed",
2429
exc_info=error)
2430
1625
except gnutls.errors.GNUTLSError as error:
1626
logger.warning("GnuTLS bye failed")
1627
2431
1628
@staticmethod
2432
1629
def peer_certificate(session):
2433
"Return the peer's certificate as a bytestring"
2434
try:
2435
cert_type = gnutls.certificate_type_get2(session._c_object,
2436
gnutls.CTYPE_PEERS)
2437
except AttributeError:
2438
cert_type = gnutls.certificate_type_get(session._c_object)
2439
if gnutls.has_rawpk:
2440
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2441
else:
2442
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2443
# If not a valid certificate type...
2444
if cert_type not in valid_cert_types:
2445
logger.info("Cert type %r not in %r", cert_type,
2446
valid_cert_types)
2447
# ...return invalid data
2448
return b""
1630
"Return the peer's OpenPGP certificate as a bytestring"
1631
# If not an OpenPGP certificate...
1632
if (gnutls.library.functions
1633
.gnutls_certificate_type_get(session._c_object)
1634
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1635
# ...do the normal thing
1636
return session.peer_certificate
2449
1637
list_size = ctypes.c_uint(1)
2450
cert_list = (gnutls.certificate_get_peers
1638
cert_list = (gnutls.library.functions
1639
.gnutls_certificate_get_peers
2451
1640
(session._c_object, ctypes.byref(list_size)))
2452
1641
if not bool(cert_list) and list_size.value != 0:
2453
raise gnutls.Error("error getting peer certificate")
1642
raise gnutls.errors.GNUTLSError("error getting peer"
1643
" certificate")
2454
1644
if list_size.value == 0:
2455
1645
return None
2456
1646
cert = cert_list[0]
2457
1647
return ctypes.string_at(cert.data, cert.size)
2458
2459
@staticmethod
2460
def key_id(certificate):
2461
"Convert a certificate bytestring to a hexdigit key ID"
2462
# New GnuTLS "datum" with the public key
2463
datum = gnutls.datum_t(
2464
ctypes.cast(ctypes.c_char_p(certificate),
2465
ctypes.POINTER(ctypes.c_ubyte)),
2466
ctypes.c_uint(len(certificate)))
2467
# XXX all these need to be created in the gnutls "module"
2468
# New empty GnuTLS certificate
2469
pubkey = gnutls.pubkey_t()
2470
gnutls.pubkey_init(ctypes.byref(pubkey))
2471
# Import the raw public key into the certificate
2472
gnutls.pubkey_import(pubkey,
2473
ctypes.byref(datum),
2474
gnutls.X509_FMT_DER)
2475
# New buffer for the key ID
2476
buf = ctypes.create_string_buffer(32)
2477
buf_len = ctypes.c_size_t(len(buf))
2478
# Get the key ID from the raw public key into the buffer
2479
gnutls.pubkey_get_key_id(
2480
pubkey,
2481
gnutls.KEYID_USE_SHA256,
2482
ctypes.cast(ctypes.byref(buf),
2483
ctypes.POINTER(ctypes.c_ubyte)),
2484
ctypes.byref(buf_len))
2485
# Deinit the certificate
2486
gnutls.pubkey_deinit(pubkey)
2487
2488
# Convert the buffer to a Python bytestring
2489
key_id = ctypes.string_at(buf, buf_len.value)
2490
# Convert the bytestring to hexadecimal notation
2491
hex_key_id = binascii.hexlify(key_id).upper()
2492
return hex_key_id
2493
1648
2494
1649
@staticmethod
2495
1650
def fingerprint(openpgp):
2496
1651
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2497
1652
# New GnuTLS "datum" with the OpenPGP public key
2498
datum = gnutls.datum_t(
2499
ctypes.cast(ctypes.c_char_p(openpgp),
2500
ctypes.POINTER(ctypes.c_ubyte)),
2501
ctypes.c_uint(len(openpgp)))
1653
datum = (gnutls.library.types
1654
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1655
ctypes.POINTER
1656
(ctypes.c_ubyte)),
1657
ctypes.c_uint(len(openpgp))))
2502
1658
# New empty GnuTLS certificate
2503
crt = gnutls.openpgp_crt_t()
2504
gnutls.openpgp_crt_init(ctypes.byref(crt))
1659
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1660
(gnutls.library.functions
1661
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2505
1662
# Import the OpenPGP public key into the certificate
2506
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2507
gnutls.OPENPGP_FMT_RAW)
1663
(gnutls.library.functions
1664
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1665
gnutls.library.constants
1666
.GNUTLS_OPENPGP_FMT_RAW))
2508
1667
# Verify the self signature in the key
2509
1668
crtverify = ctypes.c_uint()
2510
gnutls.openpgp_crt_verify_self(crt, 0,
2511
ctypes.byref(crtverify))
1669
(gnutls.library.functions
1670
.gnutls_openpgp_crt_verify_self(crt, 0,
1671
ctypes.byref(crtverify)))
2512
1672
if crtverify.value != 0:
2513
gnutls.openpgp_crt_deinit(crt)
2514
raise gnutls.CertificateSecurityError(code
2515
=crtverify.value)
1673
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1674
raise (gnutls.errors.CertificateSecurityError
1675
("Verify failed"))
2516
1676
# New buffer for the fingerprint
2517
1677
buf = ctypes.create_string_buffer(20)
2518
1678
buf_len = ctypes.c_size_t()
2519
1679
# Get the fingerprint from the certificate into the buffer
2520
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2521
ctypes.byref(buf_len))
1680
(gnutls.library.functions
1681
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1682
ctypes.byref(buf_len)))
2522
1683
# Deinit the certificate
2523
gnutls.openpgp_crt_deinit(crt)
1684
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2524
1685
# Convert the buffer to a Python bytestring
2525
1686
fpr = ctypes.string_at(buf, buf_len.value)
2526
1687
# Convert the bytestring to hexadecimal notation
2528
1689
return hex_fpr
2529
1690
2530
1691
2531
class MultiprocessingMixIn:
1692
class MultiprocessingMixIn(object):
2532
1693
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2533
2534
1694
def sub_process_main(self, request, address):
2535
1695
try:
2536
1696
self.finish_request(request, address)
2537
1697
except Exception:
2538
1698
self.handle_error(request, address)
2539
1699
self.close_request(request)
2540
1700
2541
1701
def process_request(self, request, address):
2542
1702
"""Start a new process to process the request."""
2543
proc = multiprocessing.Process(target=self.sub_process_main,
2544
args=(request, address))
1703
proc = multiprocessing.Process(target = self.sub_process_main,
1704
args = (request,
1705
address))
2545
1706
proc.start()
2546
1707
return proc
2547
1708
2548
1709
2549
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1710
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2550
1711
""" adds a pipe to the MixIn """
2551
2552
1712
def process_request(self, request, client_address):
2553
1713
"""Overrides and wraps the original process_request().
2554
1714
2555
1715
This function creates a new pipe in self.pipe
2556
1716
"""
2557
1717
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2558
1718
2559
1719
proc = MultiprocessingMixIn.process_request(self, request,
2560
1720
client_address)
2561
1721
self.child_pipe.close()
2562
1722
self.add_pipe(parent_pipe, proc)
2563
1723
2564
1724
def add_pipe(self, parent_pipe, proc):
2565
1725
"""Dummy function; override as necessary"""
2566
raise NotImplementedError()
1726
raise NotImplementedError
2567
1727
2568
1728
2569
1729
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2570
socketserver.TCPServer):
1730
socketserver.TCPServer, object):
2571
1731
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2572
1732
2573
1733
Attributes:
2574
1734
enabled: Boolean; whether this server is activated yet
2575
1735
interface: None or a network interface name (string)
2576
1736
use_ipv6: Boolean; to use IPv6 or not
2577
1737
"""
2578
2579
1738
def __init__(self, server_address, RequestHandlerClass,
2580
interface=None,
2581
use_ipv6=True,
2582
socketfd=None):
2583
"""If socketfd is set, use that file descriptor instead of
2584
creating a new one with socket.socket().
2585
"""
1739
interface=None, use_ipv6=True):
2586
1740
self.interface = interface
2587
1741
if use_ipv6:
2588
1742
self.address_family = socket.AF_INET6
2589
if socketfd is not None:
2590
# Save the file descriptor
2591
self.socketfd = socketfd
2592
# Save the original socket.socket() function
2593
self.socket_socket = socket.socket
2594
2595
# To implement --socket, we monkey patch socket.socket.
2596
#
2597
# (When socketserver.TCPServer is a new-style class, we
2598
# could make self.socket into a property instead of monkey
2599
# patching socket.socket.)
2600
#
2601
# Create a one-time-only replacement for socket.socket()
2602
@functools.wraps(socket.socket)
2603
def socket_wrapper(*args, **kwargs):
2604
# Restore original function so subsequent calls are
2605
# not affected.
2606
socket.socket = self.socket_socket
2607
del self.socket_socket
2608
# This time only, return a new socket object from the
2609
# saved file descriptor.
2610
return socket.fromfd(self.socketfd, *args, **kwargs)
2611
# Replace socket.socket() function with wrapper
2612
socket.socket = socket_wrapper
2613
# The socketserver.TCPServer.__init__ will call
2614
# socket.socket(), which might be our replacement,
2615
# socket_wrapper(), if socketfd was set.
2616
1743
socketserver.TCPServer.__init__(self, server_address,
2617
1744
RequestHandlerClass)
2618
2619
1745
def server_bind(self):
2620
1746
"""This overrides the normal server_bind() function
2621
1747
to bind to an interface if one was specified, and also NOT to
2622
1748
bind to an address or port if they were not specified."""
2623
global SO_BINDTODEVICE
2624
1749
if self.interface is not None:
2625
1750
if SO_BINDTODEVICE is None:
2626
# Fall back to a hard-coded value which seems to be
2627
# common enough.
2628
logger.warning("SO_BINDTODEVICE not found, trying 25")
2629
SO_BINDTODEVICE = 25
2630
try:
2631
self.socket.setsockopt(
2632
socket.SOL_SOCKET, SO_BINDTODEVICE,
2633
(self.interface + "\0").encode("utf-8"))
2634
except socket.error as error:
2635
if error.errno == errno.EPERM:
2636
logger.error("No permission to bind to"
2637
" interface %s", self.interface)
2638
elif error.errno == errno.ENOPROTOOPT:
2639
logger.error("SO_BINDTODEVICE not available;"
2640
" cannot bind to interface %s",
2641
self.interface)
2642
elif error.errno == errno.ENODEV:
2643
logger.error("Interface %s does not exist,"
2644
" cannot bind", self.interface)
2645
else:
2646
raise
1751
logger.error("SO_BINDTODEVICE does not exist;"
1752
" cannot bind to interface %s",
1753
self.interface)
1754
else:
1755
try:
1756
self.socket.setsockopt(socket.SOL_SOCKET,
1757
SO_BINDTODEVICE,
1758
str(self.interface
1759
+ '\0'))
1760
except socket.error as error:
1761
if error[0] == errno.EPERM:
1762
logger.error("No permission to"
1763
" bind to interface %s",
1764
self.interface)
1765
elif error[0] == errno.ENOPROTOOPT:
1766
logger.error("SO_BINDTODEVICE not available;"
1767
" cannot bind to interface %s",
1768
self.interface)
1769
else:
1770
raise
2647
1771
# Only bind(2) the socket if we really need to.
2648
1772
if self.server_address[0] or self.server_address[1]:
2649
if self.server_address[1]:
2650
self.allow_reuse_address = True
2651
1773
if not self.server_address[0]:
2652
1774
if self.address_family == socket.AF_INET6:
2653
any_address = "::" # in6addr_any
1775
any_address = "::" # in6addr_any
2654
1776
else:
2655
any_address = "0.0.0.0" # INADDR_ANY
1777
any_address = socket.INADDR_ANY
2656
1778
self.server_address = (any_address,
2657
1779
self.server_address[1])
2658
1780
elif not self.server_address[1]:
2659
self.server_address = (self.server_address[0], 0)
1781
self.server_address = (self.server_address[0],
1782
0)
2660
1783
# if self.interface:
2661
1784
# self.server_address = (self.server_address[0],
2662
1785
# 0, # port
2668
1791
2669
1792
class MandosServer(IPv6_TCPServer):
2670
1793
"""Mandos server.
2671
1794
2672
1795
Attributes:
2673
1796
clients: set of Client objects
2674
1797
gnutls_priority GnuTLS priority string
2675
1798
use_dbus: Boolean; to emit D-Bus signals or not
2676
2677
Assumes a GLib.MainLoop event loop.
1799
1800
Assumes a gobject.MainLoop event loop.
2678
1801
"""
2679
2680
1802
def __init__(self, server_address, RequestHandlerClass,
2681
interface=None,
2682
use_ipv6=True,
2683
clients=None,
2684
gnutls_priority=None,
2685
use_dbus=True,
2686
socketfd=None):
1803
interface=None, use_ipv6=True, clients=None,
1804
gnutls_priority=None, use_dbus=True):
2687
1805
self.enabled = False
2688
1806
self.clients = clients
2689
1807
if self.clients is None:
2692
1810
self.gnutls_priority = gnutls_priority
2693
1811
IPv6_TCPServer.__init__(self, server_address,
2694
1812
RequestHandlerClass,
2695
interface=interface,
2696
use_ipv6=use_ipv6,
2697
socketfd=socketfd)
2698
1813
interface = interface,
1814
use_ipv6 = use_ipv6)
2699
1815
def server_activate(self):
2700
1816
if self.enabled:
2701
1817
return socketserver.TCPServer.server_activate(self)
2702
1818
2703
1819
def enable(self):
2704
1820
self.enabled = True
2705
1821
2706
1822
def add_pipe(self, parent_pipe, proc):
2707
1823
# Call "handle_ipc" for both data and EOF events
2708
GLib.io_add_watch(
2709
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2710
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2711
functools.partial(self.handle_ipc,
2712
parent_pipe=parent_pipe,
2713
proc=proc))
2714
2715
def handle_ipc(self, source, condition,
2716
parent_pipe=None,
2717
proc=None,
2718
client_object=None):
1824
gobject.io_add_watch(parent_pipe.fileno(),
1825
gobject.IO_IN | gobject.IO_HUP,
1826
functools.partial(self.handle_ipc,
1827
parent_pipe =
1828
parent_pipe,
1829
proc = proc))
1830
1831
def handle_ipc(self, source, condition, parent_pipe=None,
1832
proc = None, client_object=None):
1833
condition_names = {
1834
gobject.IO_IN: "IN", # There is data to read.
1835
gobject.IO_OUT: "OUT", # Data can be written (without
1836
# blocking).
1837
gobject.IO_PRI: "PRI", # There is urgent data to read.
1838
gobject.IO_ERR: "ERR", # Error condition.
1839
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1840
# broken, usually for pipes and
1841
# sockets).
1842
}
1843
conditions_string = ' | '.join(name
1844
for cond, name in
1845
condition_names.iteritems()
1846
if cond & condition)
2719
1847
# error, or the other end of multiprocessing.Pipe has closed
2720
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1848
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2721
1849
# Wait for other process to exit
2722
1850
proc.join()
2723
1851
return False
2724
1852
2725
1853
# Read a request from the child
2726
1854
request = parent_pipe.recv()
2727
1855
command = request[0]
2728
1856
2729
1857
if command == 'init':
2730
key_id = request[1].decode("ascii")
2731
fpr = request[2].decode("ascii")
2732
address = request[3]
2733
2734
for c in self.clients.values():
2735
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2736
"27AE41E4649B934CA495991B7852B855"):
2737
continue
2738
if key_id and c.key_id == key_id:
2739
client = c
2740
break
2741
if fpr and c.fingerprint == fpr:
1858
fpr = request[1]
1859
address = request[2]
1860
1861
for c in self.clients.itervalues():
1862
if c.fingerprint == fpr:
2742
1863
client = c
2743
1864
break
2744
1865
else:
2745
logger.info("Client not found for key ID: %s, address"
2746
": %s", key_id or fpr, address)
1866
logger.info("Client not found for fingerprint: %s, ad"
1867
"dress: %s", fpr, address)
2747
1868
if self.use_dbus:
2748
1869
# Emit D-Bus signal
2749
mandos_dbus_service.ClientNotFound(key_id or fpr,
1870
mandos_dbus_service.ClientNotFound(fpr,
2750
1871
address[0])
2751
1872
parent_pipe.send(False)
2752
1873
return False
2753
2754
GLib.io_add_watch(
2755
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2756
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2757
functools.partial(self.handle_ipc,
2758
parent_pipe=parent_pipe,
2759
proc=proc,
2760
client_object=client))
1874
1875
gobject.io_add_watch(parent_pipe.fileno(),
1876
gobject.IO_IN | gobject.IO_HUP,
1877
functools.partial(self.handle_ipc,
1878
parent_pipe =
1879
parent_pipe,
1880
proc = proc,
1881
client_object =
1882
client))
2761
1883
parent_pipe.send(True)
2762
1884
# remove the old hook in favor of the new above hook on
2763
1885
# same fileno
2766
1888
funcname = request[1]
2767
1889
args = request[2]
2768
1890
kwargs = request[3]
2769
1891
2770
1892
parent_pipe.send(('data', getattr(client_object,
2771
1893
funcname)(*args,
2772
**kwargs)))
2773
1894
**kwargs)))
1895
2774
1896
if command == 'getattr':
2775
1897
attrname = request[1]
2776
if isinstance(client_object.__getattribute__(attrname),
2777
collections.abc.Callable):
2778
parent_pipe.send(('function', ))
1898
if callable(client_object.__getattribute__(attrname)):
1899
parent_pipe.send(('function',))
2779
1900
else:
2780
parent_pipe.send((
2781
'data', client_object.__getattribute__(attrname)))
2782
1901
parent_pipe.send(('data', client_object
1902
.__getattribute__(attrname)))
1903
2783
1904
if command == 'setattr':
2784
1905
attrname = request[1]
2785
1906
value = request[2]
2786
1907
setattr(client_object, attrname, value)
2787
1908
2788
1909
return True
2789
1910
2790
1911
2791
def rfc3339_duration_to_delta(duration):
2792
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2793
2794
>>> timedelta = datetime.timedelta
2795
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2796
True
2797
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2798
True
2799
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2800
True
2801
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2802
True
2803
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2804
True
2805
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2806
True
2807
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2808
True
2809
>>> del timedelta
2810
"""
2811
2812
# Parsing an RFC 3339 duration with regular expressions is not
2813
# possible - there would have to be multiple places for the same
2814
# values, like seconds. The current code, while more esoteric, is
2815
# cleaner without depending on a parsing library. If Python had a
2816
# built-in library for parsing we would use it, but we'd like to
2817
# avoid excessive use of external libraries.
2818
2819
# New type for defining tokens, syntax, and semantics all-in-one
2820
Token = collections.namedtuple("Token", (
2821
"regexp", # To match token; if "value" is not None, must have
2822
# a "group" containing digits
2823
"value", # datetime.timedelta or None
2824
"followers")) # Tokens valid after this token
2825
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2826
# the "duration" ABNF definition in RFC 3339, Appendix A.
2827
token_end = Token(re.compile(r"$"), None, frozenset())
2828
token_second = Token(re.compile(r"(\d+)S"),
2829
datetime.timedelta(seconds=1),
2830
frozenset((token_end, )))
2831
token_minute = Token(re.compile(r"(\d+)M"),
2832
datetime.timedelta(minutes=1),
2833
frozenset((token_second, token_end)))
2834
token_hour = Token(re.compile(r"(\d+)H"),
2835
datetime.timedelta(hours=1),
2836
frozenset((token_minute, token_end)))
2837
token_time = Token(re.compile(r"T"),
2838
None,
2839
frozenset((token_hour, token_minute,
2840
token_second)))
2841
token_day = Token(re.compile(r"(\d+)D"),
2842
datetime.timedelta(days=1),
2843
frozenset((token_time, token_end)))
2844
token_month = Token(re.compile(r"(\d+)M"),
2845
datetime.timedelta(weeks=4),
2846
frozenset((token_day, token_end)))
2847
token_year = Token(re.compile(r"(\d+)Y"),
2848
datetime.timedelta(weeks=52),
2849
frozenset((token_month, token_end)))
2850
token_week = Token(re.compile(r"(\d+)W"),
2851
datetime.timedelta(weeks=1),
2852
frozenset((token_end, )))
2853
token_duration = Token(re.compile(r"P"), None,
2854
frozenset((token_year, token_month,
2855
token_day, token_time,
2856
token_week)))
2857
# Define starting values:
2858
# Value so far
2859
value = datetime.timedelta()
2860
found_token = None
2861
# Following valid tokens
2862
followers = frozenset((token_duration, ))
2863
# String left to parse
2864
s = duration
2865
# Loop until end token is found
2866
while found_token is not token_end:
2867
# Search for any currently valid tokens
2868
for token in followers:
2869
match = token.regexp.match(s)
2870
if match is not None:
2871
# Token found
2872
if token.value is not None:
2873
# Value found, parse digits
2874
factor = int(match.group(1), 10)
2875
# Add to value so far
2876
value += factor * token.value
2877
# Strip token from string
2878
s = token.regexp.sub("", s, 1)
2879
# Go to found token
2880
found_token = token
2881
# Set valid next tokens
2882
followers = found_token.followers
2883
break
2884
else:
2885
# No currently valid tokens were found
2886
raise ValueError("Invalid RFC 3339 duration: {!r}"
2887
.format(duration))
2888
# End token found
2889
return value
2890
2891
2892
1912
def string_to_delta(interval):
2893
1913
"""Parse a string and return a datetime.timedelta
2894
2895
>>> string_to_delta('7d') == datetime.timedelta(7)
2896
True
2897
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2898
True
2899
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2900
True
2901
>>> string_to_delta('24h') == datetime.timedelta(1)
2902
True
2903
>>> string_to_delta('1w') == datetime.timedelta(7)
2904
True
2905
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2906
True
1914
1915
>>> string_to_delta('7d')
1916
datetime.timedelta(7)
1917
>>> string_to_delta('60s')
1918
datetime.timedelta(0, 60)
1919
>>> string_to_delta('60m')
1920
datetime.timedelta(0, 3600)
1921
>>> string_to_delta('24h')
1922
datetime.timedelta(1)
1923
>>> string_to_delta('1w')
1924
datetime.timedelta(7)
1925
>>> string_to_delta('5m 30s')
1926
datetime.timedelta(0, 330)
2907
1927
"""
2908
2909
try:
2910
return rfc3339_duration_to_delta(interval)
2911
except ValueError:
2912
pass
2913
2914
1928
timevalue = datetime.timedelta(0)
2915
1929
for s in interval.split():
2916
1930
try:
2917
suffix = s[-1]
1931
suffix = unicode(s[-1])
2918
1932
value = int(s[:-1])
2919
1933
if suffix == "d":
2920
1934
delta = datetime.timedelta(value)
2927
1941
elif suffix == "w":
2928
1942
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2929
1943
else:
2930
raise ValueError("Unknown suffix {!r}".format(suffix))
2931
except IndexError as e:
1944
raise ValueError("Unknown suffix %r" % suffix)
1945
except (ValueError, IndexError) as e:
2932
1946
raise ValueError(*(e.args))
2933
1947
timevalue += delta
2934
1948
return timevalue
2935
1949
2936
1950
2937
def daemon(nochdir=False, noclose=False):
1951
def daemon(nochdir = False, noclose = False):
2938
1952
"""See daemon(3). Standard BSD Unix function.
2939
1953
2940
1954
This should really exist as os.daemon, but it doesn't (yet)."""
2941
1955
if os.fork():
2942
1956
sys.exit()
2947
1961
sys.exit()
2948
1962
if not noclose:
2949
1963
# Close all standard open file descriptors
2950
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1964
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2951
1965
if not stat.S_ISCHR(os.fstat(null).st_mode):
2952
1966
raise OSError(errno.ENODEV,
2953
"{} not a character device"
2954
.format(os.devnull))
1967
"%s not a character device"
1968
% os.path.devnull)
2955
1969
os.dup2(null, sys.stdin.fileno())
2956
1970
os.dup2(null, sys.stdout.fileno())
2957
1971
os.dup2(null, sys.stderr.fileno())
2960
1974
2961
1975
2962
1976
def main():
2963
1977
2964
1978
##################################################################
2965
1979
# Parsing of options, both command line and config file
2966
1980
2967
1981
parser = argparse.ArgumentParser()
2968
1982
parser.add_argument("-v", "--version", action="version",
2969
version="%(prog)s {}".format(version),
1983
version = "%%(prog)s %s" % version,
2970
1984
help="show version number and exit")
2971
1985
parser.add_argument("-i", "--interface", metavar="IF",
2972
1986
help="Bind to interface IF")
2978
1992
help="Run self-test")
2979
1993
parser.add_argument("--debug", action="store_true",
2980
1994
help="Debug mode; run in foreground and log"
2981
" to terminal", default=None)
1995
" to terminal")
2982
1996
parser.add_argument("--debuglevel", metavar="LEVEL",
2983
1997
help="Debug level for stdout output")
2984
1998
parser.add_argument("--priority", help="GnuTLS"
2991
2005
" files")
2992
2006
parser.add_argument("--no-dbus", action="store_false",
2993
2007
dest="use_dbus", help="Do not provide D-Bus"
2994
" system bus interface", default=None)
2008
" system bus interface")
2995
2009
parser.add_argument("--no-ipv6", action="store_false",
2996
dest="use_ipv6", help="Do not use IPv6",
2997
default=None)
2010
dest="use_ipv6", help="Do not use IPv6")
2998
2011
parser.add_argument("--no-restore", action="store_false",
2999
2012
dest="restore", help="Do not restore stored"
3000
" state", default=None)
3001
parser.add_argument("--socket", type=int,
3002
help="Specify a file descriptor to a network"
3003
" socket to use instead of creating one")
2013
" state")
3004
2014
parser.add_argument("--statedir", metavar="DIR",
3005
2015
help="Directory to save/restore state in")
3006
parser.add_argument("--foreground", action="store_true",
3007
help="Run in foreground", default=None)
3008
parser.add_argument("--no-zeroconf", action="store_false",
3009
dest="zeroconf", help="Do not use Zeroconf",
3010
default=None)
3011
2016
3012
2017
options = parser.parse_args()
3013
2018
2019
if options.check:
2020
import doctest
2021
doctest.testmod()
2022
sys.exit()
2023
3014
2024
# Default values for config file for server-global settings
3015
if gnutls.has_rawpk:
3016
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3017
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3018
else:
3019
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3020
":+SIGN-DSA-SHA256")
3021
server_defaults = {"interface": "",
3022
"address": "",
3023
"port": "",
3024
"debug": "False",
3025
"priority": priority,
3026
"servicename": "Mandos",
3027
"use_dbus": "True",
3028
"use_ipv6": "True",
3029
"debuglevel": "",
3030
"restore": "True",
3031
"socket": "",
3032
"statedir": "/var/lib/mandos",
3033
"foreground": "False",
3034
"zeroconf": "True",
3035
}
3036
del priority
3037
2025
server_defaults = { "interface": "",
2026
"address": "",
2027
"port": "",
2028
"debug": "False",
2029
"priority":
2030
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2031
"servicename": "Mandos",
2032
"use_dbus": "True",
2033
"use_ipv6": "True",
2034
"debuglevel": "",
2035
"restore": "True",
2036
"statedir": "/var/lib/mandos"
2037
}
2038
3038
2039
# Parse config file for server-global settings
3039
server_config = configparser.ConfigParser(server_defaults)
2040
server_config = configparser.SafeConfigParser(server_defaults)
3040
2041
del server_defaults
3041
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3042
# Convert the ConfigParser object to a dict
2042
server_config.read(os.path.join(options.configdir,
2043
"mandos.conf"))
2044
# Convert the SafeConfigParser object to a dict
3043
2045
server_settings = server_config.defaults()
3044
2046
# Use the appropriate methods on the non-string config options
3045
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3046
"foreground", "zeroconf"):
2047
for option in ("debug", "use_dbus", "use_ipv6"):
3047
2048
server_settings[option] = server_config.getboolean("DEFAULT",
3048
2049
option)
3049
2050
if server_settings["port"]:
3050
2051
server_settings["port"] = server_config.getint("DEFAULT",
3051
2052
"port")
3052
if server_settings["socket"]:
3053
server_settings["socket"] = server_config.getint("DEFAULT",
3054
"socket")
3055
# Later, stdin will, and stdout and stderr might, be dup'ed
3056
# over with an opened os.devnull. But we don't want this to
3057
# happen with a supplied network socket.
3058
if 0 <= server_settings["socket"] <= 2:
3059
server_settings["socket"] = os.dup(server_settings
3060
["socket"])
3061
2053
del server_config
3062
2054
3063
2055
# Override the settings from the config file with command line
3064
2056
# options, if set.
3065
2057
for option in ("interface", "address", "port", "debug",
3066
"priority", "servicename", "configdir", "use_dbus",
3067
"use_ipv6", "debuglevel", "restore", "statedir",
3068
"socket", "foreground", "zeroconf"):
2058
"priority", "servicename", "configdir",
2059
"use_dbus", "use_ipv6", "debuglevel", "restore",
2060
"statedir"):
3069
2061
value = getattr(options, option)
3070
2062
if value is not None:
3071
2063
server_settings[option] = value
3072
2064
del options
3073
2065
# Force all strings to be unicode
3074
2066
for option in server_settings.keys():
3075
if isinstance(server_settings[option], bytes):
3076
server_settings[option] = (server_settings[option]
3077
.decode("utf-8"))
3078
# Force all boolean options to be boolean
3079
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3080
"foreground", "zeroconf"):
3081
server_settings[option] = bool(server_settings[option])
3082
# Debug implies foreground
3083
if server_settings["debug"]:
3084
server_settings["foreground"] = True
2067
if type(server_settings[option]) is str:
2068
server_settings[option] = unicode(server_settings[option])
3085
2069
# Now we have our good server settings in "server_settings"
3086
2070
3087
2071
##################################################################
3088
3089
if (not server_settings["zeroconf"]
3090
and not (server_settings["port"]
3091
or server_settings["socket"] != "")):
3092
parser.error("Needs port or socket to work without Zeroconf")
3093
2072
3094
2073
# For convenience
3095
2074
debug = server_settings["debug"]
3096
2075
debuglevel = server_settings["debuglevel"]
3098
2077
use_ipv6 = server_settings["use_ipv6"]
3099
2078
stored_state_path = os.path.join(server_settings["statedir"],
3100
2079
stored_state_file)
3101
foreground = server_settings["foreground"]
3102
zeroconf = server_settings["zeroconf"]
3103
2080
3104
2081
if debug:
3105
2082
initlogger(debug, logging.DEBUG)
3106
2083
else:
3109
2086
else:
3110
2087
level = getattr(logging, debuglevel.upper())
3111
2088
initlogger(debug, level)
3112
2089
3113
2090
if server_settings["servicename"] != "Mandos":
3114
syslogger.setFormatter(
3115
logging.Formatter('Mandos ({}) [%(process)d]:'
3116
' %(levelname)s: %(message)s'.format(
3117
server_settings["servicename"])))
3118
2091
syslogger.setFormatter(logging.Formatter
2092
('Mandos (%s) [%%(process)d]:'
2093
' %%(levelname)s: %%(message)s'
2094
% server_settings["servicename"]))
2095
3119
2096
# Parse config file with clients
3120
client_config = configparser.ConfigParser(Client.client_defaults)
2097
client_config = configparser.SafeConfigParser(Client.client_defaults)
3121
2098
client_config.read(os.path.join(server_settings["configdir"],
3122
2099
"clients.conf"))
3123
2100
3124
2101
global mandos_dbus_service
3125
2102
mandos_dbus_service = None
3126
3127
socketfd = None
3128
if server_settings["socket"] != "":
3129
socketfd = server_settings["socket"]
3130
tcp_server = MandosServer(
3131
(server_settings["address"], server_settings["port"]),
3132
ClientHandler,
3133
interface=(server_settings["interface"] or None),
3134
use_ipv6=use_ipv6,
3135
gnutls_priority=server_settings["priority"],
3136
use_dbus=use_dbus,
3137
socketfd=socketfd)
3138
if not foreground:
3139
pidfilename = "/run/mandos.pid"
3140
if not os.path.isdir("/run/."):
3141
pidfilename = "/var/run/mandos.pid"
3142
pidfile = None
3143
try:
3144
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3145
except IOError as e:
3146
logger.error("Could not open file %r", pidfilename,
3147
exc_info=e)
3148
3149
for name, group in (("_mandos", "_mandos"),
3150
("mandos", "mandos"),
3151
("nobody", "nogroup")):
3152
try:
3153
uid = pwd.getpwnam(name).pw_uid
3154
gid = pwd.getpwnam(group).pw_gid
3155
break
2103
2104
tcp_server = MandosServer((server_settings["address"],
2105
server_settings["port"]),
2106
ClientHandler,
2107
interface=(server_settings["interface"]
2108
or None),
2109
use_ipv6=use_ipv6,
2110
gnutls_priority=
2111
server_settings["priority"],
2112
use_dbus=use_dbus)
2113
if not debug:
2114
pidfilename = "/var/run/mandos.pid"
2115
try:
2116
pidfile = open(pidfilename, "w")
2117
except IOError:
2118
logger.error("Could not open file %r", pidfilename)
2119
2120
try:
2121
uid = pwd.getpwnam("_mandos").pw_uid
2122
gid = pwd.getpwnam("_mandos").pw_gid
2123
except KeyError:
2124
try:
2125
uid = pwd.getpwnam("mandos").pw_uid
2126
gid = pwd.getpwnam("mandos").pw_gid
3156
2127
except KeyError:
3157
continue
3158
else:
3159
uid = 65534
3160
gid = 65534
2128
try:
2129
uid = pwd.getpwnam("nobody").pw_uid
2130
gid = pwd.getpwnam("nobody").pw_gid
2131
except KeyError:
2132
uid = 65534
2133
gid = 65534
3161
2134
try:
3162
2135
os.setgid(gid)
3163
2136
os.setuid(uid)
3164
if debug:
3165
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3166
gid))
3167
2137
except OSError as error:
3168
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3169
.format(uid, gid, os.strerror(error.errno)))
3170
if error.errno != errno.EPERM:
3171
raise
3172
2138
if error[0] != errno.EPERM:
2139
raise error
2140
3173
2141
if debug:
3174
2142
# Enable all possible GnuTLS debugging
3175
2143
3176
2144
# "Use a log level over 10 to enable all debugging options."
3177
2145
# - GnuTLS manual
3178
gnutls.global_set_log_level(11)
3179
3180
@gnutls.log_func
2146
gnutls.library.functions.gnutls_global_set_log_level(11)
2147
2148
@gnutls.library.types.gnutls_log_func
3181
2149
def debug_gnutls(level, string):
3182
2150
logger.debug("GnuTLS: %s", string[:-1])
3183
3184
gnutls.global_set_log_function(debug_gnutls)
3185
2151
2152
(gnutls.library.functions
2153
.gnutls_global_set_log_function(debug_gnutls))
2154
3186
2155
# Redirect stdin so all checkers get /dev/null
3187
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2156
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3188
2157
os.dup2(null, sys.stdin.fileno())
3189
2158
if null > 2:
3190
2159
os.close(null)
3191
2160
3192
2161
# Need to fork before connecting to D-Bus
3193
if not foreground:
2162
if not debug:
3194
2163
# Close all input and output, do double fork, etc.
3195
2164
daemon()
3196
3197
if gi.version_info < (3, 10, 2):
3198
# multiprocessing will use threads, so before we use GLib we
3199
# need to inform GLib that threads will be used.
3200
GLib.threads_init()
3201
2165
2166
gobject.threads_init()
2167
3202
2168
global main_loop
3203
2169
# From the Avahi example code
3204
DBusGMainLoop(set_as_default=True)
3205
main_loop = GLib.MainLoop()
2170
DBusGMainLoop(set_as_default=True )
2171
main_loop = gobject.MainLoop()
3206
2172
bus = dbus.SystemBus()
3207
2173
# End of Avahi example code
3208
2174
if use_dbus:
3209
2175
try:
3210
2176
bus_name = dbus.service.BusName("se.recompile.Mandos",
3211
bus,
3212
do_not_queue=True)
3213
old_bus_name = dbus.service.BusName(
3214
"se.bsnet.fukt.Mandos", bus,
3215
do_not_queue=True)
3216
except dbus.exceptions.DBusException as e:
3217
logger.error("Disabling D-Bus:", exc_info=e)
2177
bus, do_not_queue=True)
2178
old_bus_name = (dbus.service.BusName
2179
("se.bsnet.fukt.Mandos", bus,
2180
do_not_queue=True))
2181
except dbus.exceptions.NameExistsException as e:
2182
logger.error(unicode(e) + ", disabling D-Bus")
3218
2183
use_dbus = False
3219
2184
server_settings["use_dbus"] = False
3220
2185
tcp_server.use_dbus = False
3221
if zeroconf:
3222
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3223
service = AvahiServiceToSyslog(
3224
name=server_settings["servicename"],
3225
servicetype="_mandos._tcp",
3226
protocol=protocol,
3227
bus=bus)
3228
if server_settings["interface"]:
3229
service.interface = if_nametoindex(
3230
server_settings["interface"].encode("utf-8"))
3231
2186
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2187
service = AvahiServiceToSyslog(name =
2188
server_settings["servicename"],
2189
servicetype = "_mandos._tcp",
2190
protocol = protocol, bus = bus)
2191
if server_settings["interface"]:
2192
service.interface = (if_nametoindex
2193
(str(server_settings["interface"])))
2194
3232
2195
global multiprocessing_manager
3233
2196
multiprocessing_manager = multiprocessing.Manager()
3234
2197
3235
2198
client_class = Client
3236
2199
if use_dbus:
3237
client_class = functools.partial(ClientDBus, bus=bus)
3238
2200
client_class = functools.partial(ClientDBusTransitional,
2201
bus = bus)
2202
3239
2203
client_settings = Client.config_parser(client_config)
3240
2204
old_client_settings = {}
3241
2205
clients_data = {}
3242
3243
# This is used to redirect stdout and stderr for checker processes
3244
global wnull
3245
wnull = open(os.devnull, "w") # A writable /dev/null
3246
# Only used if server is running in foreground but not in debug
3247
# mode
3248
if debug or not foreground:
3249
wnull.close()
3250
2206
3251
2207
# Get client data and settings from last running state.
3252
2208
if server_settings["restore"]:
3253
2209
try:
3254
2210
with open(stored_state_path, "rb") as stored_state:
3255
if sys.version_info.major == 2:
3256
clients_data, old_client_settings = pickle.load(
3257
stored_state)
3258
else:
3259
bytes_clients_data, bytes_old_client_settings = (
3260
pickle.load(stored_state, encoding="bytes"))
3261
# Fix bytes to strings
3262
# clients_data
3263
# .keys()
3264
clients_data = {(key.decode("utf-8")
3265
if isinstance(key, bytes)
3266
else key): value
3267
for key, value in
3268
bytes_clients_data.items()}
3269
del bytes_clients_data
3270
for key in clients_data:
3271
value = {(k.decode("utf-8")
3272
if isinstance(k, bytes) else k): v
3273
for k, v in
3274
clients_data[key].items()}
3275
clients_data[key] = value
3276
# .client_structure
3277
value["client_structure"] = [
3278
(s.decode("utf-8")
3279
if isinstance(s, bytes)
3280
else s) for s in
3281
value["client_structure"]]
3282
# .name, .host, and .checker_command
3283
for k in ("name", "host", "checker_command"):
3284
if isinstance(value[k], bytes):
3285
value[k] = value[k].decode("utf-8")
3286
if "key_id" not in value:
3287
value["key_id"] = ""
3288
elif "fingerprint" not in value:
3289
value["fingerprint"] = ""
3290
# old_client_settings
3291
# .keys()
3292
old_client_settings = {
3293
(key.decode("utf-8")
3294
if isinstance(key, bytes)
3295
else key): value
3296
for key, value in
3297
bytes_old_client_settings.items()}
3298
del bytes_old_client_settings
3299
# .host and .checker_command
3300
for value in old_client_settings.values():
3301
for attribute in ("host", "checker_command"):
3302
if isinstance(value[attribute], bytes):
3303
value[attribute] = (value[attribute]
3304
.decode("utf-8"))
2211
clients_data, old_client_settings = (pickle.load
2212
(stored_state))
3305
2213
os.remove(stored_state_path)
3306
2214
except IOError as e:
3307
if e.errno == errno.ENOENT:
3308
logger.warning("Could not load persistent state:"
3309
" {}".format(os.strerror(e.errno)))
3310
else:
3311
logger.critical("Could not load persistent state:",
3312
exc_info=e)
2215
logger.warning("Could not load persistent state: {0}"
2216
.format(e))
2217
if e.errno != errno.ENOENT:
3313
2218
raise
3314
2219
except EOFError as e:
3315
2220
logger.warning("Could not load persistent state: "
3316
"EOFError:",
3317
exc_info=e)
3318
2221
"EOFError: {0}".format(e))
2222
3319
2223
with PGPEngine() as pgp:
3320
for client_name, client in clients_data.items():
3321
# Skip removed clients
3322
if client_name not in client_settings:
3323
continue
3324
2224
for client_name, client in clients_data.iteritems():
3325
2225
# Decide which value to use after restoring saved state.
3326
2226
# We have three different values: Old config file,
3327
2227
# new config file, and saved state.
3332
2232
# For each value in new config, check if it
3333
2233
# differs from the old config value (Except for
3334
2234
# the "secret" attribute)
3335
if (name != "secret"
3336
and (value !=
3337
old_client_settings[client_name][name])):
2235
if (name != "secret" and
2236
value != old_client_settings[client_name]
2237
[name]):
3338
2238
client[name] = value
3339
2239
except KeyError:
3340
2240
pass
3341
2241
3342
2242
# Clients who has passed its expire date can still be
3343
# enabled if its last checker was successful. A Client
3344
# whose checker succeeded before we stored its state is
3345
# assumed to have successfully run all checkers during
3346
# downtime.
2243
# enabled if its last checker was successful. Clients
2244
# whose checker failed before we stored its state is
2245
# assumed to have failed all checkers during downtime.
3347
2246
if client["enabled"]:
3348
2247
if datetime.datetime.utcnow() >= client["expires"]:
3349
2248
if not client["last_checked_ok"]:
3350
2249
logger.warning(
3351
"disabling client {} - Client never "
3352
"performed a successful checker".format(
3353
client_name))
2250
"disabling client {0} - Client never "
2251
"performed a successfull checker"
2252
.format(client["name"]))
3354
2253
client["enabled"] = False
3355
2254
elif client["last_checker_status"] != 0:
3356
2255
logger.warning(
3357
"disabling client {} - Client last"
3358
" checker failed with error code"
3359
" {}".format(
3360
client_name,
3361
client["last_checker_status"]))
2256
"disabling client {0} - Client "
2257
"last checker failed with error code {1}"
2258
.format(client["name"],
2259
client["last_checker_status"]))
3362
2260
client["enabled"] = False
3363
2261
else:
3364
client["expires"] = (
3365
datetime.datetime.utcnow()
3366
+ client["timeout"])
3367
logger.debug("Last checker succeeded,"
3368
" keeping {} enabled".format(
3369
client_name))
2262
client["expires"] = (datetime.datetime
2263
.utcnow()
2264
+ client["timeout"])
2265
3370
2266
try:
3371
client["secret"] = pgp.decrypt(
3372
client["encrypted_secret"],
3373
client_settings[client_name]["secret"])
2267
client["secret"] = (
2268
pgp.decrypt(client["encrypted_secret"],
2269
client_settings[client_name]
2270
["secret"]))
3374
2271
except PGPError:
3375
2272
# If decryption fails, we use secret from new settings
3376
logger.debug("Failed to decrypt {} old secret".format(
3377
client_name))
3378
client["secret"] = (client_settings[client_name]
3379
["secret"])
2273
logger.debug("Failed to decrypt {0} old secret"
2274
.format(client_name))
2275
client["secret"] = (
2276
client_settings[client_name]["secret"])
3380
2277
2278
3381
2279
# Add/remove clients based on new changes made to config
3382
for client_name in (set(old_client_settings)
3383
- set(client_settings)):
2280
for client_name in set(old_client_settings) - set(client_settings):
3384
2281
del clients_data[client_name]
3385
for client_name in (set(client_settings)
3386
- set(old_client_settings)):
2282
for client_name in set(client_settings) - set(old_client_settings):
3387
2283
clients_data[client_name] = client_settings[client_name]
3388
2284
3389
# Create all client objects
3390
for client_name, client in clients_data.items():
2285
# Create clients all clients
2286
for client_name, client in clients_data.iteritems():
3391
2287
tcp_server.clients[client_name] = client_class(
3392
name=client_name,
3393
settings=client,
3394
server_settings=server_settings)
3395
2288
name = client_name, settings = client)
2289
3396
2290
if not tcp_server.clients:
3397
2291
logger.warning("No clients defined")
3398
3399
if not foreground:
3400
if pidfile is not None:
3401
pid = os.getpid()
3402
try:
3403
with pidfile:
3404
print(pid, file=pidfile)
3405
except IOError:
3406
logger.error("Could not write to file %r with PID %d",
3407
pidfilename, pid)
3408
del pidfile
2292
2293
if not debug:
2294
try:
2295
with pidfile:
2296
pid = os.getpid()
2297
pidfile.write(str(pid) + "\n".encode("utf-8"))
2298
del pidfile
2299
except IOError:
2300
logger.error("Could not write to file %r with PID %d",
2301
pidfilename, pid)
2302
except NameError:
2303
# "pidfile" was never created
2304
pass
3409
2305
del pidfilename
3410
3411
for termsig in (signal.SIGHUP, signal.SIGTERM):
3412
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3413
lambda: main_loop.quit() and False)
3414
2306
signal.signal(signal.SIGINT, signal.SIG_IGN)
2307
2308
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2309
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2310
3415
2311
if use_dbus:
3416
3417
@alternate_dbus_interfaces(
3418
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3419
class MandosDBusService(DBusObjectWithObjectManager):
2312
class MandosDBusService(dbus.service.Object):
3420
2313
"""A D-Bus proxy object"""
3421
3422
2314
def __init__(self):
3423
2315
dbus.service.Object.__init__(self, bus, "/")
3424
3425
2316
_interface = "se.recompile.Mandos"
3426
2317
3427
2318
@dbus.service.signal(_interface, signature="o")
3428
2319
def ClientAdded(self, objpath):
3429
2320
"D-Bus signal"
3430
2321
pass
3431
2322
3432
2323
@dbus.service.signal(_interface, signature="ss")
3433
def ClientNotFound(self, key_id, address):
2324
def ClientNotFound(self, fingerprint, address):
3434
2325
"D-Bus signal"
3435
2326
pass
3436
3437
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3438
"true"})
2327
3439
2328
@dbus.service.signal(_interface, signature="os")
3440
2329
def ClientRemoved(self, objpath, name):
3441
2330
"D-Bus signal"
3442
2331
pass
3443
3444
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3445
"true"})
2332
3446
2333
@dbus.service.method(_interface, out_signature="ao")
3447
2334
def GetAllClients(self):
3448
2335
"D-Bus method"
3449
return dbus.Array(c.dbus_object_path for c in
3450
tcp_server.clients.values())
3451
3452
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3453
"true"})
2336
return dbus.Array(c.dbus_object_path
2337
for c in
2338
tcp_server.clients.itervalues())
2339
3454
2340
@dbus.service.method(_interface,
3455
2341
out_signature="a{oa{sv}}")
3456
2342
def GetAllClientsWithProperties(self):
3457
2343
"D-Bus method"
3458
2344
return dbus.Dictionary(
3459
{c.dbus_object_path: c.GetAll(
3460
"se.recompile.Mandos.Client")
3461
for c in tcp_server.clients.values()},
2345
((c.dbus_object_path, c.GetAll(""))
2346
for c in tcp_server.clients.itervalues()),
3462
2347
signature="oa{sv}")
3463
2348
3464
2349
@dbus.service.method(_interface, in_signature="o")
3465
2350
def RemoveClient(self, object_path):
3466
2351
"D-Bus method"
3467
for c in tcp_server.clients.values():
2352
for c in tcp_server.clients.itervalues():
3468
2353
if c.dbus_object_path == object_path:
3469
2354
del tcp_server.clients[c.name]
3470
2355
c.remove_from_connection()
3471
# Don't signal the disabling
2356
# Don't signal anything except ClientRemoved
3472
2357
c.disable(quiet=True)
3473
# Emit D-Bus signal for removal
3474
self.client_removed_signal(c)
2358
# Emit D-Bus signal
2359
self.ClientRemoved(object_path, c.name)
3475
2360
return
3476
2361
raise KeyError(object_path)
3477
2362
3478
2363
del _interface
3479
3480
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3481
out_signature="a{oa{sa{sv}}}")
3482
def GetManagedObjects(self):
3483
"""D-Bus method"""
3484
return dbus.Dictionary(
3485
{client.dbus_object_path:
3486
dbus.Dictionary(
3487
{interface: client.GetAll(interface)
3488
for interface in
3489
client._get_all_interface_names()})
3490
for client in tcp_server.clients.values()})
3491
3492
def client_added_signal(self, client):
3493
"""Send the new standard signal and the old signal"""
3494
if use_dbus:
3495
# New standard signal
3496
self.InterfacesAdded(
3497
client.dbus_object_path,
3498
dbus.Dictionary(
3499
{interface: client.GetAll(interface)
3500
for interface in
3501
client._get_all_interface_names()}))
3502
# Old signal
3503
self.ClientAdded(client.dbus_object_path)
3504
3505
def client_removed_signal(self, client):
3506
"""Send the new standard signal and the old signal"""
3507
if use_dbus:
3508
# New standard signal
3509
self.InterfacesRemoved(
3510
client.dbus_object_path,
3511
client._get_all_interface_names())
3512
# Old signal
3513
self.ClientRemoved(client.dbus_object_path,
3514
client.name)
3515
3516
mandos_dbus_service = MandosDBusService()
3517
3518
# Save modules to variables to exempt the modules from being
3519
# unloaded before the function registered with atexit() is run.
3520
mp = multiprocessing
3521
wn = wnull
3522
2364
2365
class MandosDBusServiceTransitional(MandosDBusService):
2366
__metaclass__ = AlternateDBusNamesMetaclass
2367
mandos_dbus_service = MandosDBusServiceTransitional()
2368
3523
2369
def cleanup():
3524
2370
"Cleanup function; run on exit"
3525
if zeroconf:
3526
service.cleanup()
3527
3528
mp.active_children()
3529
wn.close()
2371
service.cleanup()
2372
2373
multiprocessing.active_children()
3530
2374
if not (tcp_server.clients or client_settings):
3531
2375
return
3532
2376
3533
2377
# Store client before exiting. Secrets are encrypted with key
3534
2378
# based on what config file has. If config file is
3535
2379
# removed/edited, old secret will thus be unrecovable.
3536
2380
clients = {}
3537
2381
with PGPEngine() as pgp:
3538
for client in tcp_server.clients.values():
2382
for client in tcp_server.clients.itervalues():
3539
2383
key = client_settings[client.name]["secret"]
3540
2384
client.encrypted_secret = pgp.encrypt(client.secret,
3541
2385
key)
3542
2386
client_dict = {}
3543
2387
3544
2388
# A list of attributes that can not be pickled
3545
2389
# + secret.
3546
exclude = {"bus", "changedstate", "secret",
3547
"checker", "server_settings"}
3548
for name, typ in inspect.getmembers(dbus.service
3549
.Object):
2390
exclude = set(("bus", "changedstate", "secret",
2391
"checker"))
2392
for name, typ in (inspect.getmembers
2393
(dbus.service.Object)):
3550
2394
exclude.add(name)
3551
2395
3552
2396
client_dict["encrypted_secret"] = (client
3553
2397
.encrypted_secret)
3554
2398
for attr in client.client_structure:
3555
2399
if attr not in exclude:
3556
2400
client_dict[attr] = getattr(client, attr)
3557
2401
3558
2402
clients[client.name] = client_dict
3559
2403
del client_settings[client.name]["secret"]
3560
2404
3561
2405
try:
3562
with tempfile.NamedTemporaryFile(
3563
mode='wb',
3564
suffix=".pickle",
3565
prefix='clients-',
3566
dir=os.path.dirname(stored_state_path),
3567
delete=False) as stored_state:
3568
pickle.dump((clients, client_settings), stored_state,
3569
protocol=2)
3570
tempname = stored_state.name
2406
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2407
prefix="clients-",
2408
dir=os.path.dirname
2409
(stored_state_path))
2410
with os.fdopen(tempfd, "wb") as stored_state:
2411
pickle.dump((clients, client_settings), stored_state)
3571
2412
os.rename(tempname, stored_state_path)
3572
2413
except (IOError, OSError) as e:
2414
logger.warning("Could not save persistent state: {0}"
2415
.format(e))
3573
2416
if not debug:
3574
2417
try:
3575
2418
os.remove(tempname)
3576
2419
except NameError:
3577
2420
pass
3578
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3579
logger.warning("Could not save persistent state: {}"
3580
.format(os.strerror(e.errno)))
3581
else:
3582
logger.warning("Could not save persistent state:",
3583
exc_info=e)
3584
raise
3585
2421
if e.errno not in set((errno.ENOENT, errno.EACCES,
2422
errno.EEXIST)):
2423
raise e
2424
3586
2425
# Delete all clients, and settings from config
3587
2426
while tcp_server.clients:
3588
2427
name, client = tcp_server.clients.popitem()
3589
2428
if use_dbus:
3590
2429
client.remove_from_connection()
3591
# Don't signal the disabling
2430
# Don't signal anything except ClientRemoved
3592
2431
client.disable(quiet=True)
3593
# Emit D-Bus signal for removal
3594
2432
if use_dbus:
3595
mandos_dbus_service.client_removed_signal(client)
2433
# Emit D-Bus signal
2434
mandos_dbus_service.ClientRemoved(client
2435
.dbus_object_path,
2436
client.name)
3596
2437
client_settings.clear()
3597
2438
3598
2439
atexit.register(cleanup)
3599
3600
for client in tcp_server.clients.values():
2440
2441
for client in tcp_server.clients.itervalues():
3601
2442
if use_dbus:
3602
# Emit D-Bus signal for adding
3603
mandos_dbus_service.client_added_signal(client)
2443
# Emit D-Bus signal
2444
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3604
2445
# Need to initiate checking of clients
3605
2446
if client.enabled:
3606
2447
client.init_checker()
3607
2448
3608
2449
tcp_server.enable()
3609
2450
tcp_server.server_activate()
3610
2451
3611
2452
# Find out what port we got
3612
if zeroconf:
3613
service.port = tcp_server.socket.getsockname()[1]
2453
service.port = tcp_server.socket.getsockname()[1]
3614
2454
if use_ipv6:
3615
2455
logger.info("Now listening on address %r, port %d,"
3616
" flowinfo %d, scope_id %d",
3617
*tcp_server.socket.getsockname())
2456
" flowinfo %d, scope_id %d"
2457
% tcp_server.socket.getsockname())
3618
2458
else: # IPv4
3619
logger.info("Now listening on address %r, port %d",
3620
*tcp_server.socket.getsockname())
3621
3622
# service.interface = tcp_server.socket.getsockname()[3]
3623
2459
logger.info("Now listening on address %r, port %d"
2460
% tcp_server.socket.getsockname())
2461
2462
#service.interface = tcp_server.socket.getsockname()[3]
2463
3624
2464
try:
3625
if zeroconf:
3626
# From the Avahi example code
3627
try:
3628
service.activate()
3629
except dbus.exceptions.DBusException as error:
3630
logger.critical("D-Bus Exception", exc_info=error)
3631
cleanup()
3632
sys.exit(1)
3633
# End of Avahi example code
3634
3635
GLib.io_add_watch(
3636
GLib.IOChannel.unix_new(tcp_server.fileno()),
3637
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3638
lambda *args, **kwargs: (tcp_server.handle_request
3639
(*args[2:], **kwargs) or True))
3640
2465
# From the Avahi example code
2466
try:
2467
service.activate()
2468
except dbus.exceptions.DBusException as error:
2469
logger.critical("DBusException: %s", error)
2470
cleanup()
2471
sys.exit(1)
2472
# End of Avahi example code
2473
2474
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2475
lambda *args, **kwargs:
2476
(tcp_server.handle_request
2477
(*args[2:], **kwargs) or True))
2478
3641
2479
logger.debug("Starting main loop")
3642
2480
main_loop.run()
3643
2481
except AvahiError as error:
3644
logger.critical("Avahi Error", exc_info=error)
2482
logger.critical("AvahiError: %s", error)
3645
2483
cleanup()
3646
2484
sys.exit(1)
3647
2485
except KeyboardInterrupt:
3652
2490
# Must run before the D-Bus bus name gets deregistered
3653
2491
cleanup()
3654
2492
3655
3656
def should_only_run_tests():
3657
parser = argparse.ArgumentParser(add_help=False)
3658
parser.add_argument("--check", action='store_true')
3659
args, unknown_args = parser.parse_known_args()
3660
run_tests = args.check
3661
if run_tests:
3662
# Remove --check argument from sys.argv
3663
sys.argv[1:] = unknown_args
3664
return run_tests
3665
3666
# Add all tests from doctest strings
3667
def load_tests(loader, tests, none):
3668
import doctest
3669
tests.addTests(doctest.DocTestSuite())
3670
return tests
3671
3672
2493
if __name__ == '__main__':
3673
try:
3674
if should_only_run_tests():
3675
# Call using ./mandos --check [--verbose]
3676
unittest.main()
3677
else:
3678
main()
3679
finally:
3680
logging.shutdown()
2494
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0