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- Committer: Björn Påhlsson
- Date: 2011-10-02 19:18:24 UTC
- mto: This revision was merged to the branch mainline in revision 505.
- Revision ID: belorn@fukt.bsnet.se-20111002191824-eweh4pvneeg3qzia
transitional stuff actually working
documented change to D-Bus API
documented change to D-Bus API
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- network-hooks.d
- 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
#
32
# Contact the authors at <mandos@recompile.se>.
33
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
31
# Contact the authors at <mandos@fukt.bsnet.se>.
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
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
import shlex
83
66
84
67
import dbus
85
68
import dbus.service
86
import gi
87
from gi.repository import GLib
69
import gobject
70
import avahi
88
71
from dbus.mainloop.glib import DBusGMainLoop
89
72
import ctypes
90
73
import ctypes.util
91
74
import xml.dom.minidom
92
75
import inspect
93
76
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:
77
try:
122
78
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
123
79
except AttributeError:
124
80
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
127
81
from IN import SO_BINDTODEVICE
128
82
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"
147
stored_state_file = "clients.pickle"
148
149
logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
152
153
try:
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
156
except (OSError, AttributeError):
157
158
def if_nametoindex(interface):
159
"Get an interface index the hard way, i.e. using fcntl()"
160
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
161
with contextlib.closing(socket.socket()) as s:
162
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
165
return interface_index
166
167
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
184
def initlogger(debug, level=logging.WARNING):
185
"""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"))
191
syslogger.setFormatter(logging.Formatter
192
('Mandos [%(process)d]: %(levelname)s:'
193
' %(message)s'))
194
logger.addHandler(syslogger)
195
196
if debug:
197
console = logging.StreamHandler()
198
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
199
' [%(process)d]:'
200
' %(levelname)s:'
201
' %(message)s'))
202
logger.addHandler(console)
203
logger.setLevel(level)
204
205
206
class PGPError(Exception):
207
"""Exception if encryption/decryption fails"""
208
pass
209
210
211
class PGPEngine:
212
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
214
def __init__(self):
215
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
235
def __enter__(self):
236
return self
237
238
def __exit__(self, exc_type, exc_value, traceback):
239
self._cleanup()
240
return False
241
242
def __del__(self):
243
self._cleanup()
244
245
def _cleanup(self):
246
if self.tempdir is not None:
247
# Delete contents of tempdir
248
for root, dirs, files in os.walk(self.tempdir,
249
topdown=False):
250
for filename in files:
251
os.remove(os.path.join(root, filename))
252
for dirname in dirs:
253
os.rmdir(os.path.join(root, dirname))
254
# Remove tempdir
255
os.rmdir(self.tempdir)
256
self.tempdir = None
257
258
def password_encode(self, password):
259
# Passphrase can not be empty and can not contain newlines or
260
# 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
269
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)
285
return ciphertext
286
287
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)
303
return decrypted_plaintext
304
305
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
83
SO_BINDTODEVICE = None
84
85
86
version = "1.3.1"
87
88
#logger = logging.getLogger('mandos')
89
logger = logging.Logger('mandos')
90
syslogger = (logging.handlers.SysLogHandler
91
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
92
address = str("/dev/log")))
93
syslogger.setFormatter(logging.Formatter
94
('Mandos [%(process)d]: %(levelname)s:'
95
' %(message)s'))
96
logger.addHandler(syslogger)
97
98
console = logging.StreamHandler()
99
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
100
' %(levelname)s:'
101
' %(message)s'))
102
logger.addHandler(console)
331
103
332
104
class AvahiError(Exception):
333
105
def __init__(self, value, *args, **kwargs):
334
106
self.value = value
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
107
super(AvahiError, self).__init__(value, *args, **kwargs)
108
def __unicode__(self):
109
return unicode(repr(self.value))
338
110
339
111
class AvahiServiceError(AvahiError):
340
112
pass
341
113
342
343
114
class AvahiGroupError(AvahiError):
344
115
pass
345
116
346
117
347
class AvahiService:
118
class AvahiService(object):
348
119
"""An Avahi (Zeroconf) service.
349
120
350
121
Attributes:
351
122
interface: integer; avahi.IF_UNSPEC or an interface index.
352
123
Used to optionally bind to the specified interface.
353
124
name: string; Example: 'Mandos'
354
125
type: string; Example: '_mandos._tcp'.
355
See <https://www.iana.org/assignments/service-names-port-numbers>
126
See <http://www.dns-sd.org/ServiceTypes.html>
356
127
port: integer; what port to announce
357
128
TXT: list of strings; TXT record for the service
358
129
domain: string; Domain to publish on, default to .local if empty.
364
135
server: D-Bus Server
365
136
bus: dbus.SystemBus()
366
137
"""
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):
138
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
139
servicetype = None, port = None, TXT = None,
140
domain = "", host = "", max_renames = 32768,
141
protocol = avahi.PROTO_UNSPEC, bus = None):
379
142
self.interface = interface
380
143
self.name = name
381
144
self.type = servicetype
390
153
self.server = None
391
154
self.bus = bus
392
155
self.entry_group_state_changed_match = None
393
394
def rename(self, remove=True):
156
def rename(self):
395
157
"""Derived from the Avahi example code"""
396
158
if self.rename_count >= self.max_renames:
397
159
logger.critical("No suitable Zeroconf service name found"
398
160
" after %i retries, exiting.",
399
161
self.rename_count)
400
162
raise AvahiServiceError("Too many renames")
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
163
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
404
164
logger.info("Changing Zeroconf service name to %r ...",
405
165
self.name)
406
if remove:
407
self.remove()
166
syslogger.setFormatter(logging.Formatter
167
('Mandos (%s) [%%(process)d]:'
168
' %%(levelname)s: %%(message)s'
169
% self.name))
170
self.remove()
408
171
try:
409
172
self.add()
410
173
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
174
logger.critical("DBusException: %s", error)
175
self.cleanup()
176
os._exit(1)
177
self.rename_count += 1
420
178
def remove(self):
421
179
"""Derived from the Avahi example code"""
422
180
if self.entry_group_state_changed_match is not None:
424
182
self.entry_group_state_changed_match = None
425
183
if self.group is not None:
426
184
self.group.Reset()
427
428
185
def add(self):
429
186
"""Derived from the Avahi example code"""
430
187
self.remove()
435
192
avahi.DBUS_INTERFACE_ENTRY_GROUP)
436
193
self.entry_group_state_changed_match = (
437
194
self.group.connect_to_signal(
438
'StateChanged', self.entry_group_state_changed))
195
'StateChanged', self .entry_group_state_changed))
439
196
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
440
197
self.name, self.type)
441
198
self.group.AddService(
447
204
dbus.UInt16(self.port),
448
205
avahi.string_array_to_txt_array(self.TXT))
449
206
self.group.Commit()
450
451
207
def entry_group_state_changed(self, state, error):
452
208
"""Derived from the Avahi example code"""
453
209
logger.debug("Avahi entry group state change: %i", state)
454
210
455
211
if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
212
logger.debug("Zeroconf service established.")
457
213
elif state == avahi.ENTRY_GROUP_COLLISION:
459
215
self.rename()
460
216
elif state == avahi.ENTRY_GROUP_FAILURE:
461
217
logger.critical("Avahi: Error in group state changed %s",
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
218
unicode(error))
219
raise AvahiGroupError("State changed: %s"
220
% unicode(error))
465
221
def cleanup(self):
466
222
"""Derived from the Avahi example code"""
467
223
if self.group is not None:
468
224
try:
469
225
self.group.Free()
470
226
except (dbus.exceptions.UnknownMethodException,
471
dbus.exceptions.DBusException):
227
dbus.exceptions.DBusException) as e:
472
228
pass
473
229
self.group = None
474
230
self.remove()
475
476
231
def server_state_changed(self, state, error=None):
477
232
"""Derived from the Avahi example code"""
478
233
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
}
234
bad_states = { avahi.SERVER_INVALID:
235
"Zeroconf server invalid",
236
avahi.SERVER_REGISTERING: None,
237
avahi.SERVER_COLLISION:
238
"Zeroconf server name collision",
239
avahi.SERVER_FAILURE:
240
"Zeroconf server failure" }
485
241
if state in bad_states:
486
242
if bad_states[state] is not None:
487
243
if error is None:
490
246
logger.error(bad_states[state] + ": %r", error)
491
247
self.cleanup()
492
248
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)
249
self.add()
505
250
else:
506
251
if error is None:
507
252
logger.debug("Unknown state: %r", state)
508
253
else:
509
254
logger.debug("Unknown state: %r: %r", state, error)
510
511
255
def activate(self):
512
256
"""Derived from the Avahi example code"""
513
257
if self.server is None:
517
261
follow_name_owner_changes=True),
518
262
avahi.DBUS_INTERFACE_SERVER)
519
263
self.server.connect_to_signal("StateChanged",
520
self.server_state_changed)
264
self.server_state_changed)
521
265
self.server_state_changed(self.server.GetState())
522
266
523
267
524
class AvahiServiceToSyslog(AvahiService):
525
def rename(self, *args, **kwargs):
526
"""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)))
532
return ret
533
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:
268
def _timedelta_to_milliseconds(td):
269
"Convert a datetime.timedelta() to milliseconds"
270
return ((td.days * 24 * 60 * 60 * 1000)
271
+ (td.seconds * 1000)
272
+ (td.microseconds // 1000))
273
274
class Client(object):
855
275
"""A representation of a client host served by this server.
856
276
857
277
Attributes:
858
approved: bool(); 'None' if not yet approved/disapproved
278
_approved: bool(); 'None' if not yet approved/disapproved
859
279
approval_delay: datetime.timedelta(); Time to wait for approval
860
280
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
281
checker: subprocess.Popen(); a running checker process used
282
to see if the client lives.
283
'None' if no process is running.
284
checker_callback_tag: a gobject event source tag, or None
865
285
checker_command: string; External command which is run to check
866
286
if client lives. %() expansions are done at
867
287
runtime with vars(self) as dict, so that for
868
288
instance %(name)s can be used in the command.
869
checker_initiator_tag: a GLib event source tag, or None
289
checker_initiator_tag: a gobject event source tag, or None
870
290
created: datetime.datetime(); (UTC) object creation
871
client_structure: Object describing what attributes a client has
872
and is used for storing the client at exit
873
291
current_checker_command: string; current running checker_command
874
disable_initiator_tag: a GLib event source tag, or None
292
disable_hook: If set, called by disable() as disable_hook(self)
293
disable_initiator_tag: a gobject event source tag, or None
875
294
enabled: bool()
876
295
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
296
uniquely identify the client
880
297
host: string; available for use by the checker command
881
298
interval: datetime.timedelta(); How often to start a new checker
882
299
last_approval_request: datetime.datetime(); (UTC) or None
883
300
last_checked_ok: datetime.datetime(); (UTC) or None
884
last_checker_status: integer between 0 and 255 reflecting exit
885
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
889
last_enabled: datetime.datetime(); (UTC) or None
301
last_enabled: datetime.datetime(); (UTC)
890
302
name: string; from the config file, used in log messages and
891
303
D-Bus identifiers
892
304
secret: bytestring; sent verbatim (over TLS) to client
893
305
timeout: datetime.timedelta(); How long from last_checked_ok
894
306
until this client is disabled
895
extended_timeout: extra long timeout when secret has been sent
307
extended_timeout: extra long timeout when password has been sent
896
308
runtime_expansions: Allowed attributes for runtime expansion.
897
309
expires: datetime.datetime(); time (UTC) when a client will be
898
310
disabled, or None
899
server_settings: The server_settings dict from main()
900
311
"""
901
312
902
313
runtime_expansions = ("approval_delay", "approval_duration",
903
"created", "enabled", "expires", "key_id",
904
"fingerprint", "host", "interval",
905
"last_approval_request", "last_checked_ok",
314
"created", "enabled", "fingerprint",
315
"host", "interval", "last_checked_ok",
906
316
"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
}
918
919
@staticmethod
920
def config_parser(config):
921
"""Construct a new dict of client settings of this form:
922
{ 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
"""
927
settings = {}
928
for client_name in config.sections():
929
section = dict(config.items(client_name))
930
client = settings[client_name] = {}
931
932
client["host"] = section["host"]
933
# Reformat values from string types to Python types
934
client["approved_by_default"] = config.getboolean(
935
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(" ", ""))
944
client["fingerprint"] = (section["fingerprint"].upper()
945
.replace(" ", ""))
946
if "secret" in section:
947
client["secret"] = codecs.decode(section["secret"]
948
.encode("utf-8"),
949
"base64")
950
elif "secfile" in section:
951
with open(os.path.expanduser(os.path.expandvars
952
(section["secfile"])),
953
"rb") as secfile:
954
client["secret"] = secfile.read()
955
else:
956
raise TypeError("No secret or secfile for section {}"
957
.format(section))
958
client["timeout"] = string_to_delta(section["timeout"])
959
client["extended_timeout"] = string_to_delta(
960
section["extended_timeout"])
961
client["interval"] = string_to_delta(section["interval"])
962
client["approval_delay"] = string_to_delta(
963
section["approval_delay"])
964
client["approval_duration"] = string_to_delta(
965
section["approval_duration"])
966
client["checker_command"] = section["checker"]
967
client["last_approval_request"] = None
968
client["last_checked_ok"] = None
969
client["last_checker_status"] = -2
970
971
return settings
972
973
def __init__(self, settings, name=None, server_settings=None):
317
318
def timeout_milliseconds(self):
319
"Return the 'timeout' attribute in milliseconds"
320
return _timedelta_to_milliseconds(self.timeout)
321
322
def extended_timeout_milliseconds(self):
323
"Return the 'extended_timeout' attribute in milliseconds"
324
return _timedelta_to_milliseconds(self.extended_timeout)
325
326
def interval_milliseconds(self):
327
"Return the 'interval' attribute in milliseconds"
328
return _timedelta_to_milliseconds(self.interval)
329
330
def approval_delay_milliseconds(self):
331
return _timedelta_to_milliseconds(self.approval_delay)
332
333
def __init__(self, name = None, disable_hook=None, config=None):
334
"""Note: the 'checker' key in 'config' sets the
335
'checker_command' attribute and *not* the 'checker'
336
attribute."""
974
337
self.name = name
975
if server_settings is None:
976
server_settings = {}
977
self.server_settings = server_settings
978
# adding all client settings
979
for setting, value in settings.items():
980
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
338
if config is None:
339
config = {}
992
340
logger.debug("Creating client %r", self.name)
993
logger.debug(" Key ID: %s", self.key_id)
341
# Uppercase and remove spaces from fingerprint for later
342
# comparison purposes with return value from the fingerprint()
343
# function
344
self.fingerprint = (config["fingerprint"].upper()
345
.replace(" ", ""))
994
346
logger.debug(" Fingerprint: %s", self.fingerprint)
995
self.created = settings.get("created",
996
datetime.datetime.utcnow())
997
998
# attributes specific for this server instance
347
if "secret" in config:
348
self.secret = config["secret"].decode("base64")
349
elif "secfile" in config:
350
with open(os.path.expanduser(os.path.expandvars
351
(config["secfile"])),
352
"rb") as secfile:
353
self.secret = secfile.read()
354
else:
355
raise TypeError("No secret or secfile for client %s"
356
% self.name)
357
self.host = config.get("host", "")
358
self.created = datetime.datetime.utcnow()
359
self.enabled = False
360
self.last_approval_request = None
361
self.last_enabled = None
362
self.last_checked_ok = None
363
self.timeout = string_to_delta(config["timeout"])
364
self.extended_timeout = string_to_delta(config["extended_timeout"])
365
self.interval = string_to_delta(config["interval"])
366
self.disable_hook = disable_hook
999
367
self.checker = None
1000
368
self.checker_initiator_tag = None
1001
369
self.disable_initiator_tag = None
370
self.expires = None
1002
371
self.checker_callback_tag = None
372
self.checker_command = config["checker"]
1003
373
self.current_checker_command = None
1004
self.approved = None
374
self.last_connect = None
375
self._approved = None
376
self.approved_by_default = config.get("approved_by_default",
377
True)
1005
378
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()
1010
if not attr.startswith("_")]
1011
self.client_structure.append("client_structure")
1012
1013
for name, t in inspect.getmembers(
1014
type(self), lambda obj: isinstance(obj, property)):
1015
if not name.startswith("_"):
1016
self.client_structure.append(name)
1017
1018
# Send notice to process children that client state has changed
379
self.approval_delay = string_to_delta(
380
config["approval_delay"])
381
self.approval_duration = string_to_delta(
382
config["approval_duration"])
383
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
384
1019
385
def send_changedstate(self):
1020
with self.changedstate:
1021
self.changedstate.notify_all()
1022
386
self.changedstate.acquire()
387
self.changedstate.notify_all()
388
self.changedstate.release()
389
1023
390
def enable(self):
1024
391
"""Start this client's checker and timeout hooks"""
1025
392
if getattr(self, "enabled", False):
1026
393
# Already enabled
1027
394
return
395
self.send_changedstate()
396
# Schedule a new checker to be started an 'interval' from now,
397
# and every interval from then on.
398
self.checker_initiator_tag = (gobject.timeout_add
399
(self.interval_milliseconds(),
400
self.start_checker))
401
# Schedule a disable() when 'timeout' has passed
1028
402
self.expires = datetime.datetime.utcnow() + self.timeout
403
self.disable_initiator_tag = (gobject.timeout_add
404
(self.timeout_milliseconds(),
405
self.disable))
1029
406
self.enabled = True
1030
407
self.last_enabled = datetime.datetime.utcnow()
1031
self.init_checker()
1032
self.send_changedstate()
1033
408
# Also start a new checker *right now*.
409
self.start_checker()
410
1034
411
def disable(self, quiet=True):
1035
412
"""Disable this client."""
1036
413
if not getattr(self, "enabled", False):
1037
414
return False
1038
415
if not quiet:
416
self.send_changedstate()
417
if not quiet:
1039
418
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)
419
if getattr(self, "disable_initiator_tag", False):
420
gobject.source_remove(self.disable_initiator_tag)
1042
421
self.disable_initiator_tag = None
1043
422
self.expires = None
1044
if getattr(self, "checker_initiator_tag", None) is not None:
1045
GLib.source_remove(self.checker_initiator_tag)
423
if getattr(self, "checker_initiator_tag", False):
424
gobject.source_remove(self.checker_initiator_tag)
1046
425
self.checker_initiator_tag = None
1047
426
self.stop_checker()
427
if self.disable_hook:
428
self.disable_hook(self)
1048
429
self.enabled = False
1049
if not quiet:
1050
self.send_changedstate()
1051
# Do not run this again if called by a GLib.timeout_add
430
# Do not run this again if called by a gobject.timeout_add
1052
431
return False
1053
432
1054
433
def __del__(self):
434
self.disable_hook = None
1055
435
self.disable()
1056
1057
def init_checker(self):
1058
# Schedule a new checker to be started an 'interval' from now,
1059
# 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)
1066
# 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)
1071
# Also start a new checker *right now*.
1072
self.start_checker()
1073
1074
def checker_callback(self, source, condition, connection,
1075
command):
436
437
def checker_callback(self, pid, condition, command):
1076
438
"""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
439
self.checker_callback_tag = None
1083
440
self.checker = None
1084
1085
if returncode >= 0:
1086
self.last_checker_status = returncode
1087
self.last_checker_signal = None
1088
if self.last_checker_status == 0:
441
if os.WIFEXITED(condition):
442
exitstatus = os.WEXITSTATUS(condition)
443
if exitstatus == 0:
1089
444
logger.info("Checker for %(name)s succeeded",
1090
445
vars(self))
1091
446
self.checked_ok()
1092
447
else:
1093
logger.info("Checker for %(name)s failed", vars(self))
448
logger.info("Checker for %(name)s failed",
449
vars(self))
1094
450
else:
1095
self.last_checker_status = -1
1096
self.last_checker_signal = -returncode
1097
451
logger.warning("Checker for %(name)s crashed?",
1098
452
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."""
453
454
def checked_ok(self, timeout=None):
455
"""Bump up the timeout for this client.
456
457
This should only be called when the client has been seen,
458
alive and well.
459
"""
1110
460
if timeout is None:
1111
461
timeout = self.timeout
1112
if self.disable_initiator_tag is not None:
1113
GLib.source_remove(self.disable_initiator_tag)
1114
self.disable_initiator_tag = None
1115
if getattr(self, "enabled", False):
1116
self.disable_initiator_tag = GLib.timeout_add(
1117
int(timeout.total_seconds() * 1000), self.disable)
1118
self.expires = datetime.datetime.utcnow() + timeout
1119
462
self.last_checked_ok = datetime.datetime.utcnow()
463
gobject.source_remove(self.disable_initiator_tag)
464
self.expires = datetime.datetime.utcnow() + timeout
465
self.disable_initiator_tag = (gobject.timeout_add
466
(_timedelta_to_milliseconds(timeout),
467
self.disable))
468
1120
469
def need_approval(self):
1121
470
self.last_approval_request = datetime.datetime.utcnow()
1122
471
1123
472
def start_checker(self):
1124
473
"""Start a new checker subprocess if one is not running.
1125
474
1126
475
If a checker already exists, leave it running and do
1127
476
nothing."""
1128
477
# 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
478
# did that, then if a checker (for some reason) started
479
# running slowly and taking more than 'interval' time, the
480
# client would inevitably timeout, since no checker would get
481
# a chance to run to completion. If we instead leave running
1133
482
# checkers alone, the checker would have to take more time
1134
483
# than 'timeout' for the client to be disabled, which is as it
1135
484
# 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
485
486
# If a checker exists, make sure it is not a zombie
487
try:
488
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
489
except (AttributeError, OSError) as error:
490
if (isinstance(error, OSError)
491
and error.errno != errno.ECHILD):
492
raise error
493
else:
494
if pid:
495
logger.warning("Checker was a zombie")
496
gobject.source_remove(self.checker_callback_tag)
497
self.checker_callback(pid, status,
498
self.current_checker_command)
1141
499
# Start a new checker if needed
1142
500
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
501
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
502
# In case checker_command has exactly one % operator
503
command = self.checker_command % self.host
504
except TypeError:
505
# Escape attributes for the shell
506
escaped_attrs = dict(
507
(attr,
508
re.escape(unicode(str(getattr(self, attr, "")),
509
errors=
510
'replace')))
511
for attr in
512
self.runtime_expansions)
513
514
try:
515
command = self.checker_command % escaped_attrs
516
except TypeError as error:
517
logger.error('Could not format string "%s":'
518
' %s', self.checker_command, error)
519
return True # Try again later
1154
520
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
521
try:
522
logger.info("Starting checker %r for %s",
523
command, self.name)
524
# We don't need to redirect stdout and stderr, since
525
# in normal mode, that is already done by daemon(),
526
# and in debug mode we don't want to. (Stdin is
527
# always replaced by /dev/null.)
528
self.checker = subprocess.Popen(command,
529
close_fds=True,
530
shell=True, cwd="/")
531
self.checker_callback_tag = (gobject.child_watch_add
532
(self.checker.pid,
533
self.checker_callback,
534
data=command))
535
# The checker may have completed before the gobject
536
# watch was added. Check for this.
537
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
538
if pid:
539
gobject.source_remove(self.checker_callback_tag)
540
self.checker_callback(pid, status, command)
541
except OSError as error:
542
logger.error("Failed to start subprocess: %s",
543
error)
544
# Re-run this periodically if run by gobject.timeout_add
1182
545
return True
1183
546
1184
547
def stop_checker(self):
1185
548
"""Force the checker process, if any, to stop."""
1186
549
if self.checker_callback_tag:
1187
GLib.source_remove(self.checker_callback_tag)
550
gobject.source_remove(self.checker_callback_tag)
1188
551
self.checker_callback_tag = None
1189
552
if getattr(self, "checker", None) is None:
1190
553
return
1191
554
logger.debug("Stopping checker for %(name)s", vars(self))
1192
self.checker.terminate()
555
try:
556
os.kill(self.checker.pid, signal.SIGTERM)
557
#time.sleep(0.5)
558
#if self.checker.poll() is None:
559
# os.kill(self.checker.pid, signal.SIGKILL)
560
except OSError as error:
561
if error.errno != errno.ESRCH: # No such process
562
raise
1193
563
self.checker = None
1194
564
1195
565
1196
def dbus_service_property(dbus_interface,
1197
signature="v",
1198
access="readwrite",
1199
byte_arrays=False):
566
def dbus_service_property(dbus_interface, signature="v",
567
access="readwrite", byte_arrays=False):
1200
568
"""Decorators for marking methods of a DBusObjectWithProperties to
1201
569
become properties on the D-Bus.
1202
570
1203
571
The decorated method will be called with no arguments by "Get"
1204
572
and with one argument by "Set".
1205
573
1206
574
The parameters, where they are supported, are the same as
1207
575
dbus.service.method, except there is only "signature", since the
1208
576
type from Get() and the type sent to Set() is the same.
1211
579
# "Set" method, so we fail early here:
1212
580
if byte_arrays and signature != "ay":
1213
581
raise ValueError("Byte arrays not supported for non-'ay'"
1214
" signature {!r}".format(signature))
1215
582
" signature %r" % signature)
1216
583
def decorator(func):
1217
584
func._dbus_is_property = True
1218
585
func._dbus_interface = dbus_interface
1221
588
func._dbus_name = func.__name__
1222
589
if func._dbus_name.endswith("_dbus_property"):
1223
590
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
591
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
592
return func
1270
593
return decorator
1271
594
1272
595
1273
596
class DBusPropertyException(dbus.exceptions.DBusException):
1274
597
"""A base class for D-Bus property-related exceptions
1275
598
"""
1276
pass
599
def __unicode__(self):
600
return unicode(str(self))
1277
601
1278
602
1279
603
class DBusPropertyAccessException(DBusPropertyException):
1288
612
pass
1289
613
1290
614
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):
615
class DBusObjectWithProperties(dbus.service.Object):
1381
616
"""A D-Bus object with properties.
1382
617
1383
618
Classes inheriting from this can use the dbus_service_property
1384
619
decorator to expose methods as D-Bus properties. It exposes the
1385
620
standard Get(), Set(), and GetAll() methods on the D-Bus.
1386
621
"""
1387
622
623
@staticmethod
624
def _is_dbus_property(obj):
625
return getattr(obj, "_dbus_is_property", False)
626
627
def _get_all_dbus_properties(self):
628
"""Returns a generator of (name, attribute) pairs
629
"""
630
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
631
for cls in self.__class__.__mro__
632
for name, prop in inspect.getmembers(cls, self._is_dbus_property))
633
1388
634
def _get_dbus_property(self, interface_name, property_name):
1389
635
"""Returns a bound method if one exists which is a D-Bus
1390
636
property with the specified name and interface.
1391
637
"""
1392
for cls in self.__class__.__mro__:
1393
for name, value in inspect.getmembers(
1394
cls, self._is_dbus_thing("property")):
1395
if (value._dbus_name == property_name
1396
and value._dbus_interface == interface_name):
638
for cls in self.__class__.__mro__:
639
for name, value in inspect.getmembers(cls, self._is_dbus_property):
640
if value._dbus_name == property_name and value._dbus_interface == interface_name:
1397
641
return value.__get__(self)
1398
642
1399
643
# 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",
644
raise DBusPropertyNotFound(self.dbus_object_path + ":"
645
+ interface_name + "."
646
+ property_name)
647
648
649
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1414
650
out_signature="v")
1415
651
def Get(self, interface_name, property_name):
1416
652
"""Standard D-Bus property Get() method, see D-Bus standard.
1422
658
if not hasattr(value, "variant_level"):
1423
659
return value
1424
660
return type(value)(value, variant_level=value.variant_level+1)
1425
661
1426
662
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1427
663
def Set(self, interface_name, property_name, value):
1428
664
"""Standard D-Bus property Set() method, see D-Bus standard.
1434
670
# The byte_arrays option is not supported yet on
1435
671
# signatures other than "ay".
1436
672
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))
673
raise ValueError
674
value = dbus.ByteArray(''.join(unichr(byte)
675
for byte in value))
1441
676
prop(value)
1442
1443
@dbus.service.method(dbus.PROPERTIES_IFACE,
1444
in_signature="s",
677
678
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1445
679
out_signature="a{sv}")
1446
680
def GetAll(self, interface_name):
1447
681
"""Standard D-Bus property GetAll() method, see D-Bus
1448
682
standard.
1449
683
1450
684
Note: Will not include properties with access="write".
1451
685
"""
1452
properties = {}
1453
for name, prop in self._get_all_dbus_things("property"):
686
all = {}
687
for name, prop in self._get_all_dbus_properties():
1454
688
if (interface_name
1455
689
and interface_name != prop._dbus_interface):
1456
690
# Interface non-empty but did not match
1460
694
continue
1461
695
value = prop()
1462
696
if not hasattr(value, "variant_level"):
1463
properties[name] = value
697
all[name] = value
1464
698
continue
1465
properties[name] = type(value)(
1466
value, variant_level=value.variant_level + 1)
1467
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
699
all[name] = type(value)(value, variant_level=
700
value.variant_level+1)
701
return dbus.Dictionary(all, signature="sv")
702
1477
703
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1478
704
out_signature="s",
1479
705
path_keyword='object_path',
1480
706
connection_keyword='connection')
1481
707
def Introspect(self, object_path, connection):
1482
"""Overloading of standard D-Bus method.
1483
1484
Inserts property tags and interface annotation tags.
708
"""Standard D-Bus method, overloaded to insert property tags.
1485
709
"""
1486
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1487
object_path,
1488
connection)
710
xmlstring = dbus.service.Object.Introspect(self, object_path,
711
connection)
1489
712
try:
1490
713
document = xml.dom.minidom.parseString(xmlstring)
1491
1492
714
def make_tag(document, name, prop):
1493
715
e = document.createElement("property")
1494
716
e.setAttribute("name", name)
1495
717
e.setAttribute("type", prop._dbus_signature)
1496
718
e.setAttribute("access", prop._dbus_access)
1497
719
return e
1498
1499
720
for if_tag in document.getElementsByTagName("interface"):
1500
# Add property tags
1501
721
for tag in (make_tag(document, name, prop)
1502
722
for name, prop
1503
in self._get_all_dbus_things("property")
723
in self._get_all_dbus_properties()
1504
724
if prop._dbus_interface
1505
725
== if_tag.getAttribute("name")):
1506
726
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
727
# Add the names to the return values for the
1524
728
# "org.freedesktop.DBus.Properties" methods
1525
729
if (if_tag.getAttribute("name")
1540
744
except (AttributeError, xml.dom.DOMException,
1541
745
xml.parsers.expat.ExpatError) as error:
1542
746
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):
747
error)
748
return xmlstring
749
750
751
def datetime_to_dbus (dt, variant_level=0):
1619
752
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1620
753
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).
1647
"""
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):
1656
# Ignore non-D-Bus attributes, and D-Bus attributes
1657
# with the wrong interface name
1658
if (not hasattr(attribute, "_dbus_interface")
1659
or not attribute._dbus_interface.startswith(
1660
orig_interface_name)):
1661
continue
1662
# Create an alternate D-Bus interface name based on
1663
# the current name
1664
alt_interface = attribute._dbus_interface.replace(
1665
orig_interface_name, alt_interface_name)
1666
interface_names.add(alt_interface)
1667
# Is this a D-Bus signal?
1668
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(
1673
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)
1681
# Create a new, but exactly alike, function
1682
# object, and decorate it to be a new D-Bus signal
1683
# 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
1695
# 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
1699
def fixscope(func1, func2):
1700
"""This function is a scope container to pass
1701
func1 and func2 to the "call_both" function
1702
outside of its arguments"""
1703
1704
@functools.wraps(func2)
1705
def call_both(*args, **kwargs):
1706
"""This function will emit two D-Bus
1707
signals by calling func1 and func2"""
1708
func1(*args, **kwargs)
1709
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
return call_both
1717
# Create the "call_both" function and add it to
1718
# the class
1719
attr[attrname] = fixscope(attribute, new_function)
1720
# Is this a D-Bus method?
1721
elif getattr(attribute, "_dbus_is_method", False):
1722
# Create a new, but exactly alike, function
1723
# object. Decorate it to be a new D-Bus method
1724
# with the alternate D-Bus interface name. Add it
1725
# 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
1738
# Is this a D-Bus property?
1739
elif getattr(attribute, "_dbus_is_property", False):
1740
# Create a new, but exactly alike, function
1741
# object, and decorate it to be a new D-Bus
1742
# property with the alternate D-Bus interface
1743
# 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"})
754
return dbus.String("", variant_level = variant_level)
755
return dbus.String(dt.isoformat(),
756
variant_level=variant_level)
757
758
class transitional_dbus_metaclass(DBusObjectWithProperties.__metaclass__):
759
def __new__(mcs, name, bases, attr):
760
for attrname, old_dbusobj in inspect.getmembers(bases[0]):
761
new_interface = getattr(old_dbusobj, "_dbus_interface", "").replace("se.bsnet.fukt.", "se.recompile.")
762
if (getattr(old_dbusobj, "_dbus_is_signal", False)
763
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
764
unwrappedfunc = dict(zip(old_dbusobj.func_code.co_freevars,
765
old_dbusobj.__closure__))["func"].cell_contents
766
newfunc = types.FunctionType(unwrappedfunc.func_code,
767
unwrappedfunc.func_globals,
768
unwrappedfunc.func_name,
769
unwrappedfunc.func_defaults,
770
unwrappedfunc.func_closure)
771
new_dbusfunc = dbus.service.signal(
772
new_interface, old_dbusobj._dbus_signature)(newfunc)
773
attr["_transitional_" + attrname] = new_dbusfunc
774
775
def fixscope(func1, func2):
776
def newcall(*args, **kwargs):
777
func1(*args, **kwargs)
778
func2(*args, **kwargs)
779
return newcall
780
781
attr[attrname] = fixscope(old_dbusobj, new_dbusfunc)
782
783
elif (getattr(old_dbusobj, "_dbus_is_method", False)
784
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
785
new_dbusfunc = (dbus.service.method
786
(new_interface,
787
old_dbusobj._dbus_in_signature,
788
old_dbusobj._dbus_out_signature)
789
(types.FunctionType
790
(old_dbusobj.func_code,
791
old_dbusobj.func_globals,
792
old_dbusobj.func_name,
793
old_dbusobj.func_defaults,
794
old_dbusobj.func_closure)))
795
796
attr[attrname] = new_dbusfunc
797
elif (getattr(old_dbusobj, "_dbus_is_property", False)
798
and old_dbusobj._dbus_interface.startswith("se.bsnet.fukt.Mandos")):
799
new_dbusfunc = (dbus_service_property
800
(new_interface,
801
old_dbusobj._dbus_signature,
802
old_dbusobj._dbus_access,
803
old_dbusobj._dbus_get_args_options["byte_arrays"])
804
(types.FunctionType
805
(old_dbusobj.func_code,
806
old_dbusobj.func_globals,
807
old_dbusobj.func_name,
808
old_dbusobj.func_defaults,
809
old_dbusobj.func_closure)))
810
811
attr[attrname] = new_dbusfunc
812
return type.__new__(mcs, name, bases, attr)
813
1796
814
class ClientDBus(Client, DBusObjectWithProperties):
1797
815
"""A Client class using D-Bus
1798
816
1799
817
Attributes:
1800
818
dbus_object_path: dbus.ObjectPath
1801
819
bus: dbus.SystemBus()
1802
820
"""
1803
821
1804
822
runtime_expansions = (Client.runtime_expansions
1805
+ ("dbus_object_path", ))
1806
1807
_interface = "se.recompile.Mandos.Client"
1808
823
+ ("dbus_object_path",))
824
1809
825
# dbus.service.Object doesn't use super(), so we can't either.
1810
1811
def __init__(self, bus=None, *args, **kwargs):
826
827
def __init__(self, bus = None, *args, **kwargs):
828
self._approvals_pending = 0
1812
829
self.bus = bus
1813
830
Client.__init__(self, *args, **kwargs)
1814
831
# Only now, when this client is initialized, can it show up on
1815
832
# the D-Bus
1816
client_object_name = str(self.name).translate(
833
client_object_name = unicode(self.name).translate(
1817
834
{ord("."): ord("_"),
1818
835
ord("-"): ord("_")})
1819
self.dbus_object_path = dbus.ObjectPath(
1820
"/clients/" + client_object_name)
836
self.dbus_object_path = (dbus.ObjectPath
837
("/clients/" + client_object_name))
1821
838
DBusObjectWithProperties.__init__(self, self.bus,
1822
839
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):
1829
""" Modify a variable so that it's a property which announces
1830
its changes to DBus.
1831
1832
transform_fun: Function that takes a value and a variant_level
1833
and transforms it to a D-Bus type.
1834
dbus_name: D-Bus name of the variable
840
841
def notifychangeproperty(transform_func,
842
dbus_name, type_func=lambda x: x,
843
variant_level=1):
844
""" Modify a variable so that its a property that announce its
845
changes to DBus.
846
transform_fun: Function that takes a value and transform it to
847
DBus type.
848
dbus_name: DBus name of the variable
1835
849
type_func: Function that transform the value before sending it
1836
to the D-Bus. Default: no transform
1837
variant_level: D-Bus variant level. Default: 1
850
to DBus
851
variant_level: DBus variant level. default: 1
1838
852
"""
1839
attrname = "_{}".format(dbus_name)
1840
853
real_value = [None,]
1841
854
def setter(self, value):
855
old_value = real_value[0]
856
real_value[0] = value
1842
857
if hasattr(self, "dbus_object_path"):
1843
if (not hasattr(self, attrname) or
1844
type_func(getattr(self, attrname, None))
1845
!= 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())
1861
setattr(self, attrname, value)
1862
1863
return property(lambda self: getattr(self, attrname), setter)
1864
858
if type_func(old_value) != type_func(real_value[0]):
859
dbus_value = transform_func(type_func(real_value[0]),
860
variant_level)
861
self.PropertyChanged(dbus.String(dbus_name),
862
dbus_value)
863
864
return property(lambda self: real_value[0], setter)
865
866
1865
867
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1866
868
approvals_pending = notifychangeproperty(dbus.Boolean,
1867
869
"ApprovalPending",
1868
type_func=bool)
870
type_func = bool)
1869
871
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1870
872
last_enabled = notifychangeproperty(datetime_to_dbus,
1871
873
"LastEnabled")
1872
checker = notifychangeproperty(
1873
dbus.Boolean, "CheckerRunning",
1874
type_func=lambda checker: checker is not None)
874
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
875
type_func = lambda checker: checker is not None)
1875
876
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1876
877
"LastCheckedOK")
1877
last_checker_status = notifychangeproperty(dbus.Int16,
1878
"LastCheckerStatus")
1879
last_approval_request = notifychangeproperty(
1880
datetime_to_dbus, "LastApprovalRequest")
878
last_approval_request = notifychangeproperty(datetime_to_dbus,
879
"LastApprovalRequest")
1881
880
approved_by_default = notifychangeproperty(dbus.Boolean,
1882
881
"ApprovedByDefault")
1883
approval_delay = notifychangeproperty(
1884
dbus.UInt64, "ApprovalDelay",
1885
type_func=lambda td: td.total_seconds() * 1000)
1886
approval_duration = notifychangeproperty(
1887
dbus.UInt64, "ApprovalDuration",
1888
type_func=lambda td: td.total_seconds() * 1000)
882
approval_delay = notifychangeproperty(dbus.UInt16, "ApprovalDelay",
883
type_func = _timedelta_to_milliseconds)
884
approval_duration = notifychangeproperty(dbus.UInt16, "ApprovalDuration",
885
type_func = _timedelta_to_milliseconds)
1889
886
host = notifychangeproperty(dbus.String, "Host")
1890
timeout = notifychangeproperty(
1891
dbus.UInt64, "Timeout",
1892
type_func=lambda td: td.total_seconds() * 1000)
1893
extended_timeout = notifychangeproperty(
1894
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)
887
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
888
type_func = _timedelta_to_milliseconds)
889
extended_timeout = notifychangeproperty(dbus.UInt16, "ExtendedTimeout",
890
type_func = _timedelta_to_milliseconds)
891
interval = notifychangeproperty(dbus.UInt16, "Interval",
892
type_func = _timedelta_to_milliseconds)
1899
893
checker_command = notifychangeproperty(dbus.String, "Checker")
1900
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1901
invalidate_only=True)
1902
894
1903
895
del notifychangeproperty
1904
896
1905
897
def __del__(self, *args, **kwargs):
1906
898
try:
1907
899
self.remove_from_connection()
1910
902
if hasattr(DBusObjectWithProperties, "__del__"):
1911
903
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1912
904
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:
905
906
def checker_callback(self, pid, condition, command,
907
*args, **kwargs):
908
self.checker_callback_tag = None
909
self.checker = None
910
if os.WIFEXITED(condition):
911
exitstatus = os.WEXITSTATUS(condition)
1921
912
# Emit D-Bus signal
1922
913
self.CheckerCompleted(dbus.Int16(exitstatus),
1923
# This is specific to GNU libC
1924
dbus.Int64(exitstatus << 8),
914
dbus.Int64(condition),
1925
915
dbus.String(command))
1926
916
else:
1927
917
# Emit D-Bus signal
1928
918
self.CheckerCompleted(dbus.Int16(-1),
1929
dbus.Int64(
1930
# This is specific to GNU libC
1931
(exitstatus << 8)
1932
| self.last_checker_signal),
919
dbus.Int64(condition),
1933
920
dbus.String(command))
1934
return ret
1935
921
922
return Client.checker_callback(self, pid, condition, command,
923
*args, **kwargs)
924
1936
925
def start_checker(self, *args, **kwargs):
1937
old_checker_pid = getattr(self.checker, "pid", None)
926
old_checker = self.checker
927
if self.checker is not None:
928
old_checker_pid = self.checker.pid
929
else:
930
old_checker_pid = None
1938
931
r = Client.start_checker(self, *args, **kwargs)
1939
932
# Only if new checker process was started
1940
933
if (self.checker is not None
1942
935
# Emit D-Bus signal
1943
936
self.CheckerStarted(self.current_checker_command)
1944
937
return r
1945
938
1946
939
def _reset_approved(self):
1947
self.approved = None
940
self._approved = None
1948
941
return False
1949
942
1950
943
def approve(self, value=True):
1951
self.approved = value
1952
GLib.timeout_add(int(self.approval_duration.total_seconds()
1953
* 1000), self._reset_approved)
1954
944
self.send_changedstate()
1955
1956
# D-Bus methods, signals & properties
1957
1958
# Interfaces
1959
1960
# Signals
1961
945
self._approved = value
946
gobject.timeout_add(_timedelta_to_milliseconds
947
(self.approval_duration),
948
self._reset_approved)
949
950
951
## D-Bus methods, signals & properties
952
_interface = "se.bsnet.fukt.Mandos.Client"
953
954
## Signals
955
1962
956
# CheckerCompleted - signal
1963
957
@dbus.service.signal(_interface, signature="nxs")
1964
958
def CheckerCompleted(self, exitcode, waitstatus, command):
1965
959
"D-Bus signal"
1966
960
pass
1967
961
1968
962
# CheckerStarted - signal
1969
963
@dbus.service.signal(_interface, signature="s")
1970
964
def CheckerStarted(self, command):
1971
965
"D-Bus signal"
1972
966
pass
1973
967
1974
968
# PropertyChanged - signal
1975
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1976
969
@dbus.service.signal(_interface, signature="sv")
1977
970
def PropertyChanged(self, property, value):
1978
971
"D-Bus signal"
1979
972
pass
1980
973
1981
974
# GotSecret - signal
1982
975
@dbus.service.signal(_interface)
1983
976
def GotSecret(self):
1986
979
server to mandos-client
1987
980
"""
1988
981
pass
1989
982
1990
983
# Rejected - signal
1991
984
@dbus.service.signal(_interface, signature="s")
1992
985
def Rejected(self, reason):
1993
986
"D-Bus signal"
1994
987
pass
1995
988
1996
989
# NeedApproval - signal
1997
990
@dbus.service.signal(_interface, signature="tb")
1998
991
def NeedApproval(self, timeout, default):
1999
992
"D-Bus signal"
2000
993
return self.need_approval()
2001
2002
# Methods
2003
994
995
## Methods
996
2004
997
# Approve - method
2005
998
@dbus.service.method(_interface, in_signature="b")
2006
999
def Approve(self, value):
2007
1000
self.approve(value)
2008
1001
2009
1002
# CheckedOK - method
2010
1003
@dbus.service.method(_interface)
2011
1004
def CheckedOK(self):
2012
1005
self.checked_ok()
2013
1006
2014
1007
# Enable - method
2015
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2016
1008
@dbus.service.method(_interface)
2017
1009
def Enable(self):
2018
1010
"D-Bus method"
2019
1011
self.enable()
2020
1012
2021
1013
# StartChecker - method
2022
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2023
1014
@dbus.service.method(_interface)
2024
1015
def StartChecker(self):
2025
1016
"D-Bus method"
2026
1017
self.start_checker()
2027
1018
2028
1019
# Disable - method
2029
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2030
1020
@dbus.service.method(_interface)
2031
1021
def Disable(self):
2032
1022
"D-Bus method"
2033
1023
self.disable()
2034
1024
2035
1025
# StopChecker - method
2036
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2037
1026
@dbus.service.method(_interface)
2038
1027
def StopChecker(self):
2039
1028
self.stop_checker()
2040
2041
# Properties
2042
1029
1030
## Properties
1031
2043
1032
# ApprovalPending - property
2044
1033
@dbus_service_property(_interface, signature="b", access="read")
2045
1034
def ApprovalPending_dbus_property(self):
2046
1035
return dbus.Boolean(bool(self.approvals_pending))
2047
1036
2048
1037
# ApprovedByDefault - property
2049
@dbus_service_property(_interface,
2050
signature="b",
1038
@dbus_service_property(_interface, signature="b",
2051
1039
access="readwrite")
2052
1040
def ApprovedByDefault_dbus_property(self, value=None):
2053
1041
if value is None: # get
2054
1042
return dbus.Boolean(self.approved_by_default)
2055
1043
self.approved_by_default = bool(value)
2056
1044
2057
1045
# ApprovalDelay - property
2058
@dbus_service_property(_interface,
2059
signature="t",
1046
@dbus_service_property(_interface, signature="t",
2060
1047
access="readwrite")
2061
1048
def ApprovalDelay_dbus_property(self, value=None):
2062
1049
if value is None: # get
2063
return dbus.UInt64(self.approval_delay.total_seconds()
2064
* 1000)
1050
return dbus.UInt64(self.approval_delay_milliseconds())
2065
1051
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2066
1052
2067
1053
# ApprovalDuration - property
2068
@dbus_service_property(_interface,
2069
signature="t",
1054
@dbus_service_property(_interface, signature="t",
2070
1055
access="readwrite")
2071
1056
def ApprovalDuration_dbus_property(self, value=None):
2072
1057
if value is None: # get
2073
return dbus.UInt64(self.approval_duration.total_seconds()
2074
* 1000)
1058
return dbus.UInt64(_timedelta_to_milliseconds(
1059
self.approval_duration))
2075
1060
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2076
1061
2077
1062
# Name - property
2078
@dbus_annotations(
2079
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2080
1063
@dbus_service_property(_interface, signature="s", access="read")
2081
1064
def Name_dbus_property(self):
2082
1065
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
1066
2091
1067
# Fingerprint - property
2092
@dbus_annotations(
2093
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2094
1068
@dbus_service_property(_interface, signature="s", access="read")
2095
1069
def Fingerprint_dbus_property(self):
2096
1070
return dbus.String(self.fingerprint)
2097
1071
2098
1072
# Host - property
2099
@dbus_service_property(_interface,
2100
signature="s",
1073
@dbus_service_property(_interface, signature="s",
2101
1074
access="readwrite")
2102
1075
def Host_dbus_property(self, value=None):
2103
1076
if value is None: # get
2104
1077
return dbus.String(self.host)
2105
self.host = str(value)
2106
1078
self.host = value
1079
2107
1080
# Created - property
2108
@dbus_annotations(
2109
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2110
1081
@dbus_service_property(_interface, signature="s", access="read")
2111
1082
def Created_dbus_property(self):
2112
return datetime_to_dbus(self.created)
2113
1083
return dbus.String(datetime_to_dbus(self.created))
1084
2114
1085
# LastEnabled - property
2115
1086
@dbus_service_property(_interface, signature="s", access="read")
2116
1087
def LastEnabled_dbus_property(self):
2117
1088
return datetime_to_dbus(self.last_enabled)
2118
1089
2119
1090
# Enabled - property
2120
@dbus_service_property(_interface,
2121
signature="b",
1091
@dbus_service_property(_interface, signature="b",
2122
1092
access="readwrite")
2123
1093
def Enabled_dbus_property(self, value=None):
2124
1094
if value is None: # get
2127
1097
self.enable()
2128
1098
else:
2129
1099
self.disable()
2130
1100
2131
1101
# LastCheckedOK - property
2132
@dbus_service_property(_interface,
2133
signature="s",
1102
@dbus_service_property(_interface, signature="s",
2134
1103
access="readwrite")
2135
1104
def LastCheckedOK_dbus_property(self, value=None):
2136
1105
if value is not None:
2137
1106
self.checked_ok()
2138
1107
return
2139
1108
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
1109
2146
1110
# Expires - property
2147
1111
@dbus_service_property(_interface, signature="s", access="read")
2148
1112
def Expires_dbus_property(self):
2149
1113
return datetime_to_dbus(self.expires)
2150
1114
2151
1115
# LastApprovalRequest - property
2152
1116
@dbus_service_property(_interface, signature="s", access="read")
2153
1117
def LastApprovalRequest_dbus_property(self):
2154
1118
return datetime_to_dbus(self.last_approval_request)
2155
1119
2156
1120
# Timeout - property
2157
@dbus_service_property(_interface,
2158
signature="t",
1121
@dbus_service_property(_interface, signature="t",
2159
1122
access="readwrite")
2160
1123
def Timeout_dbus_property(self, value=None):
2161
1124
if value is None: # get
2162
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2163
old_timeout = self.timeout
1125
return dbus.UInt64(self.timeout_milliseconds())
2164
1126
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
1127
if getattr(self, "disable_initiator_tag", None) is None:
1128
return
1129
# Reschedule timeout
1130
gobject.source_remove(self.disable_initiator_tag)
1131
self.disable_initiator_tag = None
1132
self.expires = None
1133
time_to_die = (self.
1134
_timedelta_to_milliseconds((self
1135
.last_checked_ok
1136
+ self.timeout)
1137
- datetime.datetime
1138
.utcnow()))
1139
if time_to_die <= 0:
1140
# The timeout has passed
1141
self.disable()
1142
else:
1143
self.expires = (datetime.datetime.utcnow()
1144
+ datetime.timedelta(milliseconds = time_to_die))
1145
self.disable_initiator_tag = (gobject.timeout_add
1146
(time_to_die, self.disable))
1147
2181
1148
# ExtendedTimeout - property
2182
@dbus_service_property(_interface,
2183
signature="t",
1149
@dbus_service_property(_interface, signature="t",
2184
1150
access="readwrite")
2185
1151
def ExtendedTimeout_dbus_property(self, value=None):
2186
1152
if value is None: # get
2187
return dbus.UInt64(self.extended_timeout.total_seconds()
2188
* 1000)
1153
return dbus.UInt64(self.extended_timeout_milliseconds())
2189
1154
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2190
1155
2191
1156
# Interval - property
2192
@dbus_service_property(_interface,
2193
signature="t",
1157
@dbus_service_property(_interface, signature="t",
2194
1158
access="readwrite")
2195
1159
def Interval_dbus_property(self, value=None):
2196
1160
if value is None: # get
2197
return dbus.UInt64(self.interval.total_seconds() * 1000)
1161
return dbus.UInt64(self.interval_milliseconds())
2198
1162
self.interval = datetime.timedelta(0, 0, 0, value)
2199
1163
if getattr(self, "checker_initiator_tag", None) is None:
2200
1164
return
2201
if self.enabled:
2202
# 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
1165
# Reschedule checker run
1166
gobject.source_remove(self.checker_initiator_tag)
1167
self.checker_initiator_tag = (gobject.timeout_add
1168
(value, self.start_checker))
1169
self.start_checker() # Start one now, too
1170
2208
1171
# Checker - property
2209
@dbus_service_property(_interface,
2210
signature="s",
1172
@dbus_service_property(_interface, signature="s",
2211
1173
access="readwrite")
2212
1174
def Checker_dbus_property(self, value=None):
2213
1175
if value is None: # get
2214
1176
return dbus.String(self.checker_command)
2215
self.checker_command = str(value)
2216
1177
self.checker_command = value
1178
2217
1179
# CheckerRunning - property
2218
@dbus_service_property(_interface,
2219
signature="b",
1180
@dbus_service_property(_interface, signature="b",
2220
1181
access="readwrite")
2221
1182
def CheckerRunning_dbus_property(self, value=None):
2222
1183
if value is None: # get
2225
1186
self.start_checker()
2226
1187
else:
2227
1188
self.stop_checker()
2228
1189
2229
1190
# ObjectPath - property
2230
@dbus_annotations(
2231
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2232
"org.freedesktop.DBus.Deprecated": "true"})
2233
1191
@dbus_service_property(_interface, signature="o", access="read")
2234
1192
def ObjectPath_dbus_property(self):
2235
return self.dbus_object_path # is already a dbus.ObjectPath
2236
1193
return self.dbus_object_path # is already a dbus.ObjectPath
1194
2237
1195
# 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)
1196
@dbus_service_property(_interface, signature="ay",
1197
access="write", byte_arrays=True)
2245
1198
def Secret_dbus_property(self, value):
2246
self.secret = bytes(value)
2247
1199
self.secret = str(value)
1200
2248
1201
del _interface
2249
1202
2250
1203
2251
class ProxyClient:
2252
def __init__(self, child_pipe, key_id, fpr, address):
1204
class ProxyClient(object):
1205
def __init__(self, child_pipe, fpr, address):
2253
1206
self._pipe = child_pipe
2254
self._pipe.send(('init', key_id, fpr, address))
1207
self._pipe.send(('init', fpr, address))
2255
1208
if not self._pipe.recv():
2256
raise KeyError(key_id or fpr)
2257
1209
raise KeyError()
1210
2258
1211
def __getattribute__(self, name):
2259
if name == '_pipe':
1212
if(name == '_pipe'):
2260
1213
return super(ProxyClient, self).__getattribute__(name)
2261
1214
self._pipe.send(('getattr', name))
2262
1215
data = self._pipe.recv()
2263
1216
if data[0] == 'data':
2264
1217
return data[1]
2265
1218
if data[0] == 'function':
2266
2267
1219
def func(*args, **kwargs):
2268
1220
self._pipe.send(('funcall', name, args, kwargs))
2269
1221
return self._pipe.recv()[1]
2270
2271
1222
return func
2272
1223
2273
1224
def __setattr__(self, name, value):
2274
if name == '_pipe':
1225
if(name == '_pipe'):
2275
1226
return super(ProxyClient, self).__setattr__(name, value)
2276
1227
self._pipe.send(('setattr', name, value))
2277
1228
1229
class ClientDBusTransitional(ClientDBus):
1230
__metaclass__ = transitional_dbus_metaclass
2278
1231
2279
1232
class ClientHandler(socketserver.BaseRequestHandler, object):
2280
1233
"""A class to handle client connections.
2281
1234
2282
1235
Instantiated once for each connection to handle it.
2283
1236
Note: This will run in its own forked process."""
2284
1237
2285
1238
def handle(self):
2286
1239
with contextlib.closing(self.server.child_pipe) as child_pipe:
2287
1240
logger.info("TCP connection from: %s",
2288
str(self.client_address))
1241
unicode(self.client_address))
2289
1242
logger.debug("Pipe FD: %d",
2290
1243
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"))
1244
1245
session = (gnutls.connection
1246
.ClientSession(self.request,
1247
gnutls.connection
1248
.X509Credentials()))
1249
1250
# Note: gnutls.connection.X509Credentials is really a
1251
# generic GnuTLS certificate credentials object so long as
1252
# no X.509 keys are added to it. Therefore, we can use it
1253
# here despite using OpenPGP certificates.
1254
1255
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1256
# "+AES-256-CBC", "+SHA1",
1257
# "+COMP-NULL", "+CTYPE-OPENPGP",
1258
# "+DHE-DSS"))
2298
1259
# Use a fallback default, since this MUST be set.
2299
1260
priority = self.server.gnutls_priority
2300
1261
if priority is None:
2301
1262
priority = "NORMAL"
2302
gnutls.priority_set_direct(session._c_object,
2303
priority.encode("utf-8"),
2304
None)
2305
1263
(gnutls.library.functions
1264
.gnutls_priority_set_direct(session._c_object,
1265
priority, None))
1266
2306
1267
# Start communication using the Mandos protocol
2307
1268
# Get protocol number
2308
1269
line = self.request.makefile().readline()
2309
1270
logger.debug("Protocol version: %r", line)
2310
1271
try:
2311
1272
if int(line.strip().split()[0]) > 1:
2312
raise RuntimeError(line)
1273
raise RuntimeError
2313
1274
except (ValueError, IndexError, RuntimeError) as error:
2314
1275
logger.error("Unknown protocol version: %s", error)
2315
1276
return
2316
1277
2317
1278
# Start GnuTLS connection
2318
1279
try:
2319
1280
session.handshake()
2320
except gnutls.Error as error:
1281
except gnutls.errors.GNUTLSError as error:
2321
1282
logger.warning("Handshake failed: %s", error)
2322
1283
# Do not run session.bye() here: the session is not
2323
1284
# established. Just abandon the request.
2324
1285
return
2325
1286
logger.debug("Handshake succeeded")
2326
1287
2327
1288
approval_required = False
2328
1289
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,
1290
try:
1291
fpr = self.fingerprint(self.peer_certificate
1292
(session))
1293
except (TypeError,
1294
gnutls.errors.GNUTLSError) as error:
1295
logger.warning("Bad certificate: %s", error)
1296
return
1297
logger.debug("Fingerprint: %s", fpr)
1298
1299
try:
1300
client = ProxyClient(child_pipe, fpr,
2351
1301
self.client_address)
2352
1302
except KeyError:
2353
1303
return
2354
1304
2355
1305
if client.approval_delay:
2356
1306
delay = client.approval_delay
2357
1307
client.approvals_pending += 1
2358
1308
approval_required = True
2359
1309
2360
1310
while True:
2361
1311
if not client.enabled:
2362
1312
logger.info("Client %s is disabled",
2363
client.name)
1313
client.name)
2364
1314
if self.server.use_dbus:
2365
1315
# Emit D-Bus signal
2366
client.Rejected("Disabled")
1316
client.Rejected("Disabled")
2367
1317
return
2368
2369
if client.approved or not client.approval_delay:
2370
# We are approved or approval is disabled
1318
1319
if client._approved or not client.approval_delay:
1320
#We are approved or approval is disabled
2371
1321
break
2372
elif client.approved is None:
1322
elif client._approved is None:
2373
1323
logger.info("Client %s needs approval",
2374
1324
client.name)
2375
1325
if self.server.use_dbus:
2376
1326
# Emit D-Bus signal
2377
1327
client.NeedApproval(
2378
client.approval_delay.total_seconds()
2379
* 1000, client.approved_by_default)
1328
client.approval_delay_milliseconds(),
1329
client.approved_by_default)
2380
1330
else:
2381
1331
logger.warning("Client %s was not approved",
2382
1332
client.name)
2384
1334
# Emit D-Bus signal
2385
1335
client.Rejected("Denied")
2386
1336
return
2387
2388
# wait until timeout or approved
1337
1338
#wait until timeout or approved
1339
#x = float(client._timedelta_to_milliseconds(delay))
2389
1340
time = datetime.datetime.now()
2390
1341
client.changedstate.acquire()
2391
client.changedstate.wait(delay.total_seconds())
1342
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
2392
1343
client.changedstate.release()
2393
1344
time2 = datetime.datetime.now()
2394
1345
if (time2 - time) >= delay:
2404
1355
break
2405
1356
else:
2406
1357
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
1358
1359
sent_size = 0
1360
while sent_size < len(client.secret):
1361
try:
1362
sent = session.send(client.secret[sent_size:])
1363
except gnutls.errors.GNUTLSError as error:
1364
logger.warning("gnutls send failed")
1365
return
1366
logger.debug("Sent: %d, remaining: %d",
1367
sent, len(client.secret)
1368
- (sent_size + sent))
1369
sent_size += sent
1370
2415
1371
logger.info("Sending secret to %s", client.name)
2416
# bump the timeout using extended_timeout
2417
client.bump_timeout(client.extended_timeout)
1372
# bump the timeout as if seen
1373
client.checked_ok(client.extended_timeout)
2418
1374
if self.server.use_dbus:
2419
1375
# Emit D-Bus signal
2420
1376
client.GotSecret()
2421
1377
2422
1378
finally:
2423
1379
if approval_required:
2424
1380
client.approvals_pending -= 1
2425
1381
try:
2426
1382
session.bye()
2427
except gnutls.Error as error:
2428
logger.warning("GnuTLS bye failed",
2429
exc_info=error)
2430
1383
except gnutls.errors.GNUTLSError as error:
1384
logger.warning("GnuTLS bye failed")
1385
2431
1386
@staticmethod
2432
1387
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""
1388
"Return the peer's OpenPGP certificate as a bytestring"
1389
# If not an OpenPGP certificate...
1390
if (gnutls.library.functions
1391
.gnutls_certificate_type_get(session._c_object)
1392
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1393
# ...do the normal thing
1394
return session.peer_certificate
2449
1395
list_size = ctypes.c_uint(1)
2450
cert_list = (gnutls.certificate_get_peers
1396
cert_list = (gnutls.library.functions
1397
.gnutls_certificate_get_peers
2451
1398
(session._c_object, ctypes.byref(list_size)))
2452
1399
if not bool(cert_list) and list_size.value != 0:
2453
raise gnutls.Error("error getting peer certificate")
1400
raise gnutls.errors.GNUTLSError("error getting peer"
1401
" certificate")
2454
1402
if list_size.value == 0:
2455
1403
return None
2456
1404
cert = cert_list[0]
2457
1405
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
1406
2494
1407
@staticmethod
2495
1408
def fingerprint(openpgp):
2496
1409
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2497
1410
# 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)))
1411
datum = (gnutls.library.types
1412
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1413
ctypes.POINTER
1414
(ctypes.c_ubyte)),
1415
ctypes.c_uint(len(openpgp))))
2502
1416
# New empty GnuTLS certificate
2503
crt = gnutls.openpgp_crt_t()
2504
gnutls.openpgp_crt_init(ctypes.byref(crt))
1417
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1418
(gnutls.library.functions
1419
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2505
1420
# Import the OpenPGP public key into the certificate
2506
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2507
gnutls.OPENPGP_FMT_RAW)
1421
(gnutls.library.functions
1422
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1423
gnutls.library.constants
1424
.GNUTLS_OPENPGP_FMT_RAW))
2508
1425
# Verify the self signature in the key
2509
1426
crtverify = ctypes.c_uint()
2510
gnutls.openpgp_crt_verify_self(crt, 0,
2511
ctypes.byref(crtverify))
1427
(gnutls.library.functions
1428
.gnutls_openpgp_crt_verify_self(crt, 0,
1429
ctypes.byref(crtverify)))
2512
1430
if crtverify.value != 0:
2513
gnutls.openpgp_crt_deinit(crt)
2514
raise gnutls.CertificateSecurityError(code
2515
=crtverify.value)
1431
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1432
raise (gnutls.errors.CertificateSecurityError
1433
("Verify failed"))
2516
1434
# New buffer for the fingerprint
2517
1435
buf = ctypes.create_string_buffer(20)
2518
1436
buf_len = ctypes.c_size_t()
2519
1437
# Get the fingerprint from the certificate into the buffer
2520
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2521
ctypes.byref(buf_len))
1438
(gnutls.library.functions
1439
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1440
ctypes.byref(buf_len)))
2522
1441
# Deinit the certificate
2523
gnutls.openpgp_crt_deinit(crt)
1442
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2524
1443
# Convert the buffer to a Python bytestring
2525
1444
fpr = ctypes.string_at(buf, buf_len.value)
2526
1445
# Convert the bytestring to hexadecimal notation
2527
hex_fpr = binascii.hexlify(fpr).upper()
1446
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
2528
1447
return hex_fpr
2529
1448
2530
1449
2531
class MultiprocessingMixIn:
1450
class MultiprocessingMixIn(object):
2532
1451
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2533
2534
1452
def sub_process_main(self, request, address):
2535
1453
try:
2536
1454
self.finish_request(request, address)
2537
except Exception:
1455
except:
2538
1456
self.handle_error(request, address)
2539
1457
self.close_request(request)
2540
1458
2541
1459
def process_request(self, request, address):
2542
1460
"""Start a new process to process the request."""
2543
proc = multiprocessing.Process(target=self.sub_process_main,
2544
args=(request, address))
2545
proc.start()
2546
return proc
2547
2548
2549
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1461
multiprocessing.Process(target = self.sub_process_main,
1462
args = (request, address)).start()
1463
1464
1465
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2550
1466
""" adds a pipe to the MixIn """
2551
2552
1467
def process_request(self, request, client_address):
2553
1468
"""Overrides and wraps the original process_request().
2554
1469
2555
1470
This function creates a new pipe in self.pipe
2556
1471
"""
2557
1472
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2558
2559
proc = MultiprocessingMixIn.process_request(self, request,
2560
client_address)
1473
1474
super(MultiprocessingMixInWithPipe,
1475
self).process_request(request, client_address)
2561
1476
self.child_pipe.close()
2562
self.add_pipe(parent_pipe, proc)
2563
2564
def add_pipe(self, parent_pipe, proc):
1477
self.add_pipe(parent_pipe)
1478
1479
def add_pipe(self, parent_pipe):
2565
1480
"""Dummy function; override as necessary"""
2566
raise NotImplementedError()
1481
raise NotImplementedError
2567
1482
2568
1483
2569
1484
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2570
socketserver.TCPServer):
1485
socketserver.TCPServer, object):
2571
1486
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2572
1487
2573
1488
Attributes:
2574
1489
enabled: Boolean; whether this server is activated yet
2575
1490
interface: None or a network interface name (string)
2576
1491
use_ipv6: Boolean; to use IPv6 or not
2577
1492
"""
2578
2579
1493
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
"""
1494
interface=None, use_ipv6=True):
2586
1495
self.interface = interface
2587
1496
if use_ipv6:
2588
1497
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
1498
socketserver.TCPServer.__init__(self, server_address,
2617
1499
RequestHandlerClass)
2618
2619
1500
def server_bind(self):
2620
1501
"""This overrides the normal server_bind() function
2621
1502
to bind to an interface if one was specified, and also NOT to
2622
1503
bind to an address or port if they were not specified."""
2623
global SO_BINDTODEVICE
2624
1504
if self.interface is not None:
2625
1505
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
1506
logger.error("SO_BINDTODEVICE does not exist;"
1507
" cannot bind to interface %s",
1508
self.interface)
1509
else:
1510
try:
1511
self.socket.setsockopt(socket.SOL_SOCKET,
1512
SO_BINDTODEVICE,
1513
str(self.interface
1514
+ '\0'))
1515
except socket.error as error:
1516
if error[0] == errno.EPERM:
1517
logger.error("No permission to"
1518
" bind to interface %s",
1519
self.interface)
1520
elif error[0] == errno.ENOPROTOOPT:
1521
logger.error("SO_BINDTODEVICE not available;"
1522
" cannot bind to interface %s",
1523
self.interface)
1524
else:
1525
raise
2647
1526
# Only bind(2) the socket if we really need to.
2648
1527
if self.server_address[0] or self.server_address[1]:
2649
if self.server_address[1]:
2650
self.allow_reuse_address = True
2651
1528
if not self.server_address[0]:
2652
1529
if self.address_family == socket.AF_INET6:
2653
any_address = "::" # in6addr_any
1530
any_address = "::" # in6addr_any
2654
1531
else:
2655
any_address = "0.0.0.0" # INADDR_ANY
1532
any_address = socket.INADDR_ANY
2656
1533
self.server_address = (any_address,
2657
1534
self.server_address[1])
2658
1535
elif not self.server_address[1]:
2659
self.server_address = (self.server_address[0], 0)
1536
self.server_address = (self.server_address[0],
1537
0)
2660
1538
# if self.interface:
2661
1539
# self.server_address = (self.server_address[0],
2662
1540
# 0, # port
2668
1546
2669
1547
class MandosServer(IPv6_TCPServer):
2670
1548
"""Mandos server.
2671
1549
2672
1550
Attributes:
2673
1551
clients: set of Client objects
2674
1552
gnutls_priority GnuTLS priority string
2675
1553
use_dbus: Boolean; to emit D-Bus signals or not
2676
2677
Assumes a GLib.MainLoop event loop.
1554
1555
Assumes a gobject.MainLoop event loop.
2678
1556
"""
2679
2680
1557
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):
1558
interface=None, use_ipv6=True, clients=None,
1559
gnutls_priority=None, use_dbus=True):
2687
1560
self.enabled = False
2688
1561
self.clients = clients
2689
1562
if self.clients is None:
2690
self.clients = {}
1563
self.clients = set()
2691
1564
self.use_dbus = use_dbus
2692
1565
self.gnutls_priority = gnutls_priority
2693
1566
IPv6_TCPServer.__init__(self, server_address,
2694
1567
RequestHandlerClass,
2695
interface=interface,
2696
use_ipv6=use_ipv6,
2697
socketfd=socketfd)
2698
1568
interface = interface,
1569
use_ipv6 = use_ipv6)
2699
1570
def server_activate(self):
2700
1571
if self.enabled:
2701
1572
return socketserver.TCPServer.server_activate(self)
2702
2703
1573
def enable(self):
2704
1574
self.enabled = True
2705
2706
def add_pipe(self, parent_pipe, proc):
1575
def add_pipe(self, parent_pipe):
2707
1576
# 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,
1577
gobject.io_add_watch(parent_pipe.fileno(),
1578
gobject.IO_IN | gobject.IO_HUP,
1579
functools.partial(self.handle_ipc,
1580
parent_pipe = parent_pipe))
1581
1582
def handle_ipc(self, source, condition, parent_pipe=None,
2718
1583
client_object=None):
2719
# error, or the other end of multiprocessing.Pipe has closed
2720
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2721
# Wait for other process to exit
2722
proc.join()
1584
condition_names = {
1585
gobject.IO_IN: "IN", # There is data to read.
1586
gobject.IO_OUT: "OUT", # Data can be written (without
1587
# blocking).
1588
gobject.IO_PRI: "PRI", # There is urgent data to read.
1589
gobject.IO_ERR: "ERR", # Error condition.
1590
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1591
# broken, usually for pipes and
1592
# sockets).
1593
}
1594
conditions_string = ' | '.join(name
1595
for cond, name in
1596
condition_names.iteritems()
1597
if cond & condition)
1598
# error or the other end of multiprocessing.Pipe has closed
1599
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2723
1600
return False
2724
1601
2725
1602
# Read a request from the child
2726
1603
request = parent_pipe.recv()
2727
1604
command = request[0]
2728
1605
2729
1606
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:
1607
fpr = request[1]
1608
address = request[2]
1609
1610
for c in self.clients:
1611
if c.fingerprint == fpr:
2742
1612
client = c
2743
1613
break
2744
1614
else:
2745
logger.info("Client not found for key ID: %s, address"
2746
": %s", key_id or fpr, address)
1615
logger.info("Client not found for fingerprint: %s, ad"
1616
"dress: %s", fpr, address)
2747
1617
if self.use_dbus:
2748
1618
# Emit D-Bus signal
2749
mandos_dbus_service.ClientNotFound(key_id or fpr,
2750
address[0])
1619
mandos_dbus_service.ClientNotFound(fpr, address[0])
2751
1620
parent_pipe.send(False)
2752
1621
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))
1622
1623
gobject.io_add_watch(parent_pipe.fileno(),
1624
gobject.IO_IN | gobject.IO_HUP,
1625
functools.partial(self.handle_ipc,
1626
parent_pipe = parent_pipe,
1627
client_object = client))
2761
1628
parent_pipe.send(True)
2762
# remove the old hook in favor of the new above hook on
2763
# same fileno
1629
# remove the old hook in favor of the new above hook on same fileno
2764
1630
return False
2765
1631
if command == 'funcall':
2766
1632
funcname = request[1]
2767
1633
args = request[2]
2768
1634
kwargs = request[3]
2769
2770
parent_pipe.send(('data', getattr(client_object,
2771
funcname)(*args,
2772
**kwargs)))
2773
1635
1636
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1637
2774
1638
if command == 'getattr':
2775
1639
attrname = request[1]
2776
if isinstance(client_object.__getattribute__(attrname),
2777
collections.abc.Callable):
2778
parent_pipe.send(('function', ))
1640
if callable(client_object.__getattribute__(attrname)):
1641
parent_pipe.send(('function',))
2779
1642
else:
2780
parent_pipe.send((
2781
'data', client_object.__getattribute__(attrname)))
2782
1643
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1644
2783
1645
if command == 'setattr':
2784
1646
attrname = request[1]
2785
1647
value = request[2]
2786
1648
setattr(client_object, attrname, value)
2787
1649
2788
1650
return True
2789
1651
2790
1652
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
1653
def string_to_delta(interval):
2893
1654
"""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
1655
1656
>>> string_to_delta('7d')
1657
datetime.timedelta(7)
1658
>>> string_to_delta('60s')
1659
datetime.timedelta(0, 60)
1660
>>> string_to_delta('60m')
1661
datetime.timedelta(0, 3600)
1662
>>> string_to_delta('24h')
1663
datetime.timedelta(1)
1664
>>> string_to_delta('1w')
1665
datetime.timedelta(7)
1666
>>> string_to_delta('5m 30s')
1667
datetime.timedelta(0, 330)
2907
1668
"""
2908
2909
try:
2910
return rfc3339_duration_to_delta(interval)
2911
except ValueError:
2912
pass
2913
2914
1669
timevalue = datetime.timedelta(0)
2915
1670
for s in interval.split():
2916
1671
try:
2917
suffix = s[-1]
1672
suffix = unicode(s[-1])
2918
1673
value = int(s[:-1])
2919
1674
if suffix == "d":
2920
1675
delta = datetime.timedelta(value)
2927
1682
elif suffix == "w":
2928
1683
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2929
1684
else:
2930
raise ValueError("Unknown suffix {!r}".format(suffix))
2931
except IndexError as e:
1685
raise ValueError("Unknown suffix %r" % suffix)
1686
except (ValueError, IndexError) as e:
2932
1687
raise ValueError(*(e.args))
2933
1688
timevalue += delta
2934
1689
return timevalue
2935
1690
2936
1691
2937
def daemon(nochdir=False, noclose=False):
1692
def if_nametoindex(interface):
1693
"""Call the C function if_nametoindex(), or equivalent
1694
1695
Note: This function cannot accept a unicode string."""
1696
global if_nametoindex
1697
try:
1698
if_nametoindex = (ctypes.cdll.LoadLibrary
1699
(ctypes.util.find_library("c"))
1700
.if_nametoindex)
1701
except (OSError, AttributeError):
1702
logger.warning("Doing if_nametoindex the hard way")
1703
def if_nametoindex(interface):
1704
"Get an interface index the hard way, i.e. using fcntl()"
1705
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1706
with contextlib.closing(socket.socket()) as s:
1707
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1708
struct.pack(str("16s16x"),
1709
interface))
1710
interface_index = struct.unpack(str("I"),
1711
ifreq[16:20])[0]
1712
return interface_index
1713
return if_nametoindex(interface)
1714
1715
1716
def daemon(nochdir = False, noclose = False):
2938
1717
"""See daemon(3). Standard BSD Unix function.
2939
1718
2940
1719
This should really exist as os.daemon, but it doesn't (yet)."""
2941
1720
if os.fork():
2942
1721
sys.exit()
2947
1726
sys.exit()
2948
1727
if not noclose:
2949
1728
# Close all standard open file descriptors
2950
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1729
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2951
1730
if not stat.S_ISCHR(os.fstat(null).st_mode):
2952
1731
raise OSError(errno.ENODEV,
2953
"{} not a character device"
2954
.format(os.devnull))
1732
"%s not a character device"
1733
% os.path.devnull)
2955
1734
os.dup2(null, sys.stdin.fileno())
2956
1735
os.dup2(null, sys.stdout.fileno())
2957
1736
os.dup2(null, sys.stderr.fileno())
2960
1739
2961
1740
2962
1741
def main():
2963
1742
2964
1743
##################################################################
2965
1744
# Parsing of options, both command line and config file
2966
1745
2967
1746
parser = argparse.ArgumentParser()
2968
1747
parser.add_argument("-v", "--version", action="version",
2969
version="%(prog)s {}".format(version),
1748
version = "%%(prog)s %s" % version,
2970
1749
help="show version number and exit")
2971
1750
parser.add_argument("-i", "--interface", metavar="IF",
2972
1751
help="Bind to interface IF")
2978
1757
help="Run self-test")
2979
1758
parser.add_argument("--debug", action="store_true",
2980
1759
help="Debug mode; run in foreground and log"
2981
" to terminal", default=None)
1760
" to terminal")
2982
1761
parser.add_argument("--debuglevel", metavar="LEVEL",
2983
1762
help="Debug level for stdout output")
2984
1763
parser.add_argument("--priority", help="GnuTLS"
2991
1770
" files")
2992
1771
parser.add_argument("--no-dbus", action="store_false",
2993
1772
dest="use_dbus", help="Do not provide D-Bus"
2994
" system bus interface", default=None)
1773
" system bus interface")
2995
1774
parser.add_argument("--no-ipv6", action="store_false",
2996
dest="use_ipv6", help="Do not use IPv6",
2997
default=None)
2998
parser.add_argument("--no-restore", action="store_false",
2999
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")
3004
parser.add_argument("--statedir", metavar="DIR",
3005
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
1775
dest="use_ipv6", help="Do not use IPv6")
3012
1776
options = parser.parse_args()
3013
1777
1778
if options.check:
1779
import doctest
1780
doctest.testmod()
1781
sys.exit()
1782
3014
1783
# 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
1784
server_defaults = { "interface": "",
1785
"address": "",
1786
"port": "",
1787
"debug": "False",
1788
"priority":
1789
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1790
"servicename": "Mandos",
1791
"use_dbus": "True",
1792
"use_ipv6": "True",
1793
"debuglevel": "",
1794
}
1795
3038
1796
# Parse config file for server-global settings
3039
server_config = configparser.ConfigParser(server_defaults)
1797
server_config = configparser.SafeConfigParser(server_defaults)
3040
1798
del server_defaults
3041
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3042
# Convert the ConfigParser object to a dict
1799
server_config.read(os.path.join(options.configdir,
1800
"mandos.conf"))
1801
# Convert the SafeConfigParser object to a dict
3043
1802
server_settings = server_config.defaults()
3044
1803
# Use the appropriate methods on the non-string config options
3045
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3046
"foreground", "zeroconf"):
1804
for option in ("debug", "use_dbus", "use_ipv6"):
3047
1805
server_settings[option] = server_config.getboolean("DEFAULT",
3048
1806
option)
3049
1807
if server_settings["port"]:
3050
1808
server_settings["port"] = server_config.getint("DEFAULT",
3051
1809
"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
1810
del server_config
3062
1811
3063
1812
# Override the settings from the config file with command line
3064
1813
# options, if set.
3065
1814
for option in ("interface", "address", "port", "debug",
3066
"priority", "servicename", "configdir", "use_dbus",
3067
"use_ipv6", "debuglevel", "restore", "statedir",
3068
"socket", "foreground", "zeroconf"):
1815
"priority", "servicename", "configdir",
1816
"use_dbus", "use_ipv6", "debuglevel"):
3069
1817
value = getattr(options, option)
3070
1818
if value is not None:
3071
1819
server_settings[option] = value
3072
1820
del options
3073
1821
# Force all strings to be unicode
3074
1822
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
1823
if type(server_settings[option]) is str:
1824
server_settings[option] = unicode(server_settings[option])
3085
1825
# Now we have our good server settings in "server_settings"
3086
1826
3087
1827
##################################################################
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
1828
3094
1829
# For convenience
3095
1830
debug = server_settings["debug"]
3096
1831
debuglevel = server_settings["debuglevel"]
3097
1832
use_dbus = server_settings["use_dbus"]
3098
1833
use_ipv6 = server_settings["use_ipv6"]
3099
stored_state_path = os.path.join(server_settings["statedir"],
3100
stored_state_file)
3101
foreground = server_settings["foreground"]
3102
zeroconf = server_settings["zeroconf"]
3103
3104
if debug:
3105
initlogger(debug, logging.DEBUG)
3106
else:
3107
if not debuglevel:
3108
initlogger(debug)
3109
else:
3110
level = getattr(logging, debuglevel.upper())
3111
initlogger(debug, level)
3112
1834
3113
1835
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
1836
syslogger.setFormatter(logging.Formatter
1837
('Mandos (%s) [%%(process)d]:'
1838
' %%(levelname)s: %%(message)s'
1839
% server_settings["servicename"]))
1840
3119
1841
# Parse config file with clients
3120
client_config = configparser.ConfigParser(Client.client_defaults)
1842
client_defaults = { "timeout": "5m",
1843
"extended_timeout": "15m",
1844
"interval": "2m",
1845
"checker": "fping -q -- %%(host)s",
1846
"host": "",
1847
"approval_delay": "0s",
1848
"approval_duration": "1s",
1849
}
1850
client_config = configparser.SafeConfigParser(client_defaults)
3121
1851
client_config.read(os.path.join(server_settings["configdir"],
3122
1852
"clients.conf"))
3123
1853
3124
1854
global mandos_dbus_service
3125
1855
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
1856
1857
tcp_server = MandosServer((server_settings["address"],
1858
server_settings["port"]),
1859
ClientHandler,
1860
interface=(server_settings["interface"]
1861
or None),
1862
use_ipv6=use_ipv6,
1863
gnutls_priority=
1864
server_settings["priority"],
1865
use_dbus=use_dbus)
1866
if not debug:
1867
pidfilename = "/var/run/mandos.pid"
1868
try:
1869
pidfile = open(pidfilename, "w")
1870
except IOError:
1871
logger.error("Could not open file %r", pidfilename)
1872
1873
try:
1874
uid = pwd.getpwnam("_mandos").pw_uid
1875
gid = pwd.getpwnam("_mandos").pw_gid
1876
except KeyError:
1877
try:
1878
uid = pwd.getpwnam("mandos").pw_uid
1879
gid = pwd.getpwnam("mandos").pw_gid
3156
1880
except KeyError:
3157
continue
3158
else:
3159
uid = 65534
3160
gid = 65534
1881
try:
1882
uid = pwd.getpwnam("nobody").pw_uid
1883
gid = pwd.getpwnam("nobody").pw_gid
1884
except KeyError:
1885
uid = 65534
1886
gid = 65534
3161
1887
try:
3162
1888
os.setgid(gid)
3163
1889
os.setuid(uid)
3164
if debug:
3165
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3166
gid))
3167
1890
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
1891
if error[0] != errno.EPERM:
1892
raise error
1893
1894
if not debug and not debuglevel:
1895
syslogger.setLevel(logging.WARNING)
1896
console.setLevel(logging.WARNING)
1897
if debuglevel:
1898
level = getattr(logging, debuglevel.upper())
1899
syslogger.setLevel(level)
1900
console.setLevel(level)
1901
3173
1902
if debug:
3174
1903
# Enable all possible GnuTLS debugging
3175
1904
3176
1905
# "Use a log level over 10 to enable all debugging options."
3177
1906
# - GnuTLS manual
3178
gnutls.global_set_log_level(11)
3179
3180
@gnutls.log_func
1907
gnutls.library.functions.gnutls_global_set_log_level(11)
1908
1909
@gnutls.library.types.gnutls_log_func
3181
1910
def debug_gnutls(level, string):
3182
1911
logger.debug("GnuTLS: %s", string[:-1])
3183
3184
gnutls.global_set_log_function(debug_gnutls)
3185
1912
1913
(gnutls.library.functions
1914
.gnutls_global_set_log_function(debug_gnutls))
1915
3186
1916
# Redirect stdin so all checkers get /dev/null
3187
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1917
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3188
1918
os.dup2(null, sys.stdin.fileno())
3189
1919
if null > 2:
3190
1920
os.close(null)
3191
1921
else:
1922
# No console logging
1923
logger.removeHandler(console)
1924
3192
1925
# Need to fork before connecting to D-Bus
3193
if not foreground:
1926
if not debug:
3194
1927
# Close all input and output, do double fork, etc.
3195
1928
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
1929
3202
1930
global main_loop
3203
1931
# From the Avahi example code
3204
DBusGMainLoop(set_as_default=True)
3205
main_loop = GLib.MainLoop()
1932
DBusGMainLoop(set_as_default=True )
1933
main_loop = gobject.MainLoop()
3206
1934
bus = dbus.SystemBus()
3207
1935
# End of Avahi example code
3208
1936
if use_dbus:
3209
1937
try:
3210
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)
1938
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1939
bus, do_not_queue=True)
1940
bus_name2 = dbus.service.BusName("se.recompile.Mandos",
1941
bus, do_not_queue=True)
1942
except dbus.exceptions.NameExistsException as e:
1943
logger.error(unicode(e) + ", disabling D-Bus")
3218
1944
use_dbus = False
3219
1945
server_settings["use_dbus"] = False
3220
1946
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
1947
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1948
service = AvahiService(name = server_settings["servicename"],
1949
servicetype = "_mandos._tcp",
1950
protocol = protocol, bus = bus)
1951
if server_settings["interface"]:
1952
service.interface = (if_nametoindex
1953
(str(server_settings["interface"])))
1954
3232
1955
global multiprocessing_manager
3233
1956
multiprocessing_manager = multiprocessing.Manager()
3234
1957
3235
1958
client_class = Client
3236
1959
if use_dbus:
3237
client_class = functools.partial(ClientDBus, bus=bus)
3238
3239
client_settings = Client.config_parser(client_config)
3240
old_client_settings = {}
3241
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
3251
# Get client data and settings from last running state.
3252
if server_settings["restore"]:
3253
try:
3254
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"))
3305
os.remove(stored_state_path)
3306
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)
3313
raise
3314
except EOFError as e:
3315
logger.warning("Could not load persistent state: "
3316
"EOFError:",
3317
exc_info=e)
3318
3319
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
3325
# Decide which value to use after restoring saved state.
3326
# We have three different values: Old config file,
3327
# new config file, and saved state.
3328
# New config value takes precedence if it differs from old
3329
# config value, otherwise use saved state.
3330
for name, value in client_settings[client_name].items():
3331
try:
3332
# For each value in new config, check if it
3333
# differs from the old config value (Except for
3334
# the "secret" attribute)
3335
if (name != "secret"
3336
and (value !=
3337
old_client_settings[client_name][name])):
3338
client[name] = value
3339
except KeyError:
3340
pass
3341
3342
# 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.
3347
if client["enabled"]:
3348
if datetime.datetime.utcnow() >= client["expires"]:
3349
if not client["last_checked_ok"]:
3350
logger.warning(
3351
"disabling client {} - Client never "
3352
"performed a successful checker".format(
3353
client_name))
3354
client["enabled"] = False
3355
elif client["last_checker_status"] != 0:
3356
logger.warning(
3357
"disabling client {} - Client last"
3358
" checker failed with error code"
3359
" {}".format(
3360
client_name,
3361
client["last_checker_status"]))
3362
client["enabled"] = False
3363
else:
3364
client["expires"] = (
3365
datetime.datetime.utcnow()
3366
+ client["timeout"])
3367
logger.debug("Last checker succeeded,"
3368
" keeping {} enabled".format(
3369
client_name))
1960
client_class = functools.partial(ClientDBusTransitional, bus = bus)
1961
def client_config_items(config, section):
1962
special_settings = {
1963
"approved_by_default":
1964
lambda: config.getboolean(section,
1965
"approved_by_default"),
1966
}
1967
for name, value in config.items(section):
3370
1968
try:
3371
client["secret"] = pgp.decrypt(
3372
client["encrypted_secret"],
3373
client_settings[client_name]["secret"])
3374
except PGPError:
3375
# 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"])
3380
3381
# Add/remove clients based on new changes made to config
3382
for client_name in (set(old_client_settings)
3383
- set(client_settings)):
3384
del clients_data[client_name]
3385
for client_name in (set(client_settings)
3386
- set(old_client_settings)):
3387
clients_data[client_name] = client_settings[client_name]
3388
3389
# Create all client objects
3390
for client_name, client in clients_data.items():
3391
tcp_server.clients[client_name] = client_class(
3392
name=client_name,
3393
settings=client,
3394
server_settings=server_settings)
3395
1969
yield (name, special_settings[name]())
1970
except KeyError:
1971
yield (name, value)
1972
1973
tcp_server.clients.update(set(
1974
client_class(name = section,
1975
config= dict(client_config_items(
1976
client_config, section)))
1977
for section in client_config.sections()))
3396
1978
if not tcp_server.clients:
3397
1979
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
1980
1981
if not debug:
1982
try:
1983
with pidfile:
1984
pid = os.getpid()
1985
pidfile.write(str(pid) + "\n".encode("utf-8"))
1986
del pidfile
1987
except IOError:
1988
logger.error("Could not write to file %r with PID %d",
1989
pidfilename, pid)
1990
except NameError:
1991
# "pidfile" was never created
1992
pass
3409
1993
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
1994
1995
signal.signal(signal.SIGINT, signal.SIG_IGN)
1996
1997
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1998
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1999
3415
2000
if use_dbus:
3416
3417
@alternate_dbus_interfaces(
3418
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3419
class MandosDBusService(DBusObjectWithObjectManager):
2001
class MandosDBusService(dbus.service.Object):
3420
2002
"""A D-Bus proxy object"""
3421
3422
2003
def __init__(self):
3423
2004
dbus.service.Object.__init__(self, bus, "/")
3424
3425
_interface = "se.recompile.Mandos"
3426
2005
_interface = "se.bsnet.fukt.Mandos"
2006
3427
2007
@dbus.service.signal(_interface, signature="o")
3428
2008
def ClientAdded(self, objpath):
3429
2009
"D-Bus signal"
3430
2010
pass
3431
2011
3432
2012
@dbus.service.signal(_interface, signature="ss")
3433
def ClientNotFound(self, key_id, address):
2013
def ClientNotFound(self, fingerprint, address):
3434
2014
"D-Bus signal"
3435
2015
pass
3436
3437
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3438
"true"})
2016
3439
2017
@dbus.service.signal(_interface, signature="os")
3440
2018
def ClientRemoved(self, objpath, name):
3441
2019
"D-Bus signal"
3442
2020
pass
3443
3444
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3445
"true"})
2021
3446
2022
@dbus.service.method(_interface, out_signature="ao")
3447
2023
def GetAllClients(self):
3448
2024
"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"})
2025
return dbus.Array(c.dbus_object_path
2026
for c in tcp_server.clients)
2027
3454
2028
@dbus.service.method(_interface,
3455
2029
out_signature="a{oa{sv}}")
3456
2030
def GetAllClientsWithProperties(self):
3457
2031
"D-Bus method"
3458
2032
return dbus.Dictionary(
3459
{c.dbus_object_path: c.GetAll(
3460
"se.recompile.Mandos.Client")
3461
for c in tcp_server.clients.values()},
2033
((c.dbus_object_path, c.GetAll(""))
2034
for c in tcp_server.clients),
3462
2035
signature="oa{sv}")
3463
2036
3464
2037
@dbus.service.method(_interface, in_signature="o")
3465
2038
def RemoveClient(self, object_path):
3466
2039
"D-Bus method"
3467
for c in tcp_server.clients.values():
2040
for c in tcp_server.clients:
3468
2041
if c.dbus_object_path == object_path:
3469
del tcp_server.clients[c.name]
2042
tcp_server.clients.remove(c)
3470
2043
c.remove_from_connection()
3471
# Don't signal the disabling
2044
# Don't signal anything except ClientRemoved
3472
2045
c.disable(quiet=True)
3473
# Emit D-Bus signal for removal
3474
self.client_removed_signal(c)
2046
# Emit D-Bus signal
2047
self.ClientRemoved(object_path, c.name)
3475
2048
return
3476
2049
raise KeyError(object_path)
3477
2050
3478
2051
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
2052
2053
class MandosDBusServiceTransitional(MandosDBusService):
2054
__metaclass__ = transitional_dbus_metaclass
2055
mandos_dbus_service = MandosDBusServiceTransitional()
2056
3523
2057
def cleanup():
3524
2058
"Cleanup function; run on exit"
3525
if zeroconf:
3526
service.cleanup()
3527
3528
mp.active_children()
3529
wn.close()
3530
if not (tcp_server.clients or client_settings):
3531
return
3532
3533
# Store client before exiting. Secrets are encrypted with key
3534
# based on what config file has. If config file is
3535
# removed/edited, old secret will thus be unrecovable.
3536
clients = {}
3537
with PGPEngine() as pgp:
3538
for client in tcp_server.clients.values():
3539
key = client_settings[client.name]["secret"]
3540
client.encrypted_secret = pgp.encrypt(client.secret,
3541
key)
3542
client_dict = {}
3543
3544
# A list of attributes that can not be pickled
3545
# + secret.
3546
exclude = {"bus", "changedstate", "secret",
3547
"checker", "server_settings"}
3548
for name, typ in inspect.getmembers(dbus.service
3549
.Object):
3550
exclude.add(name)
3551
3552
client_dict["encrypted_secret"] = (client
3553
.encrypted_secret)
3554
for attr in client.client_structure:
3555
if attr not in exclude:
3556
client_dict[attr] = getattr(client, attr)
3557
3558
clients[client.name] = client_dict
3559
del client_settings[client.name]["secret"]
3560
3561
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
3571
os.rename(tempname, stored_state_path)
3572
except (IOError, OSError) as e:
3573
if not debug:
3574
try:
3575
os.remove(tempname)
3576
except NameError:
3577
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
3586
# Delete all clients, and settings from config
2059
service.cleanup()
2060
3587
2061
while tcp_server.clients:
3588
name, client = tcp_server.clients.popitem()
2062
client = tcp_server.clients.pop()
3589
2063
if use_dbus:
3590
2064
client.remove_from_connection()
3591
# Don't signal the disabling
2065
client.disable_hook = None
2066
# Don't signal anything except ClientRemoved
3592
2067
client.disable(quiet=True)
3593
# Emit D-Bus signal for removal
3594
2068
if use_dbus:
3595
mandos_dbus_service.client_removed_signal(client)
3596
client_settings.clear()
3597
2069
# Emit D-Bus signal
2070
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2071
client.name)
2072
3598
2073
atexit.register(cleanup)
3599
3600
for client in tcp_server.clients.values():
2074
2075
for client in tcp_server.clients:
3601
2076
if use_dbus:
3602
# Emit D-Bus signal for adding
3603
mandos_dbus_service.client_added_signal(client)
3604
# Need to initiate checking of clients
3605
if client.enabled:
3606
client.init_checker()
3607
2077
# Emit D-Bus signal
2078
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2079
client.enable()
2080
3608
2081
tcp_server.enable()
3609
2082
tcp_server.server_activate()
3610
2083
3611
2084
# Find out what port we got
3612
if zeroconf:
3613
service.port = tcp_server.socket.getsockname()[1]
2085
service.port = tcp_server.socket.getsockname()[1]
3614
2086
if use_ipv6:
3615
2087
logger.info("Now listening on address %r, port %d,"
3616
" flowinfo %d, scope_id %d",
3617
*tcp_server.socket.getsockname())
2088
" flowinfo %d, scope_id %d"
2089
% tcp_server.socket.getsockname())
3618
2090
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
2091
logger.info("Now listening on address %r, port %d"
2092
% tcp_server.socket.getsockname())
2093
2094
#service.interface = tcp_server.socket.getsockname()[3]
2095
3624
2096
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
2097
# From the Avahi example code
2098
try:
2099
service.activate()
2100
except dbus.exceptions.DBusException as error:
2101
logger.critical("DBusException: %s", error)
2102
cleanup()
2103
sys.exit(1)
2104
# End of Avahi example code
2105
2106
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2107
lambda *args, **kwargs:
2108
(tcp_server.handle_request
2109
(*args[2:], **kwargs) or True))
2110
3641
2111
logger.debug("Starting main loop")
3642
2112
main_loop.run()
3643
2113
except AvahiError as error:
3644
logger.critical("Avahi Error", exc_info=error)
2114
logger.critical("AvahiError: %s", error)
3645
2115
cleanup()
3646
2116
sys.exit(1)
3647
2117
except KeyboardInterrupt:
3652
2122
# Must run before the D-Bus bus name gets deregistered
3653
2123
cleanup()
3654
2124
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
2125
3672
2126
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()
2127
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0