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- Committer: Teddy Hogeborn
- Date: 2010-09-13 05:56:48 UTC
- mfrom: (420.1.1 mandos-local)
- Revision ID: teddy@fukt.bsnet.se-20100913055648-v92t4egg6xubyqqo
Merge Makefile change.
- files removed:
- bugs.xml
- debian/source
- debian/upstream
- network-hooks.d
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
#
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 © 2008-2016 Teddy Hogeborn
15
# Copyright © 2008-2016 Björn Påhlsson
16
#
14
# Copyright © 2008,2009 Teddy Hogeborn
15
# Copyright © 2008,2009 Björn Påhlsson
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
19
19
# the Free Software Foundation, either version 3 of the License, or
23
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
25
# GNU General Public License for more details.
26
#
26
#
27
27
# You should have received a copy of the GNU General Public License
28
28
# along with this program. If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
#
31
# Contact the authors at <mandos@recompile.se>.
32
#
33
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
36
37
try:
38
from future_builtins import *
39
except ImportError:
40
pass
41
42
try:
43
import SocketServer as socketserver
44
except ImportError:
45
import socketserver
30
#
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
#
33
34
from __future__ import division, with_statement, absolute_import
35
36
import SocketServer as socketserver
46
37
import socket
47
import argparse
38
import optparse
48
39
import datetime
49
40
import errno
50
try:
51
import ConfigParser as configparser
52
except ImportError:
53
import configparser
41
import gnutls.crypto
42
import gnutls.connection
43
import gnutls.errors
44
import gnutls.library.functions
45
import gnutls.library.constants
46
import gnutls.library.types
47
import ConfigParser as configparser
54
48
import sys
55
49
import re
56
50
import os
65
59
import struct
66
60
import fcntl
67
61
import functools
68
try:
69
import cPickle as pickle
70
except ImportError:
71
import pickle
62
import cPickle as pickle
72
63
import multiprocessing
73
import types
74
import binascii
75
import tempfile
76
import itertools
77
import collections
78
import codecs
79
64
80
65
import dbus
81
66
import dbus.service
82
from gi.repository import GLib
67
import gobject
68
import avahi
83
69
from dbus.mainloop.glib import DBusGMainLoop
84
70
import ctypes
85
71
import ctypes.util
86
72
import xml.dom.minidom
87
73
import inspect
88
74
89
# Try to find the value of SO_BINDTODEVICE:
90
75
try:
91
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
92
# newer, and it is also the most natural place for it:
93
76
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
94
77
except AttributeError:
95
78
try:
96
# This is where SO_BINDTODEVICE was up to and including Python
97
# 2.6, and also 3.2:
98
79
from IN import SO_BINDTODEVICE
99
80
except ImportError:
100
# In Python 2.7 it seems to have been removed entirely.
101
# Try running the C preprocessor:
102
try:
103
cc = subprocess.Popen(["cc", "--language=c", "-E",
104
"/dev/stdin"],
105
stdin=subprocess.PIPE,
106
stdout=subprocess.PIPE)
107
stdout = cc.communicate(
108
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
109
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
110
except (OSError, ValueError, IndexError):
111
# No value found
112
SO_BINDTODEVICE = None
113
114
if sys.version_info.major == 2:
115
str = unicode
116
117
version = "1.7.11"
118
stored_state_file = "clients.pickle"
119
120
logger = logging.getLogger()
121
syslogger = None
122
123
try:
124
if_nametoindex = ctypes.cdll.LoadLibrary(
125
ctypes.util.find_library("c")).if_nametoindex
126
except (OSError, AttributeError):
127
128
def if_nametoindex(interface):
129
"Get an interface index the hard way, i.e. using fcntl()"
130
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
131
with contextlib.closing(socket.socket()) as s:
132
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
133
struct.pack(b"16s16x", interface))
134
interface_index = struct.unpack("I", ifreq[16:20])[0]
135
return interface_index
136
137
138
def copy_function(func):
139
"""Make a copy of a function"""
140
if sys.version_info.major == 2:
141
return types.FunctionType(func.func_code,
142
func.func_globals,
143
func.func_name,
144
func.func_defaults,
145
func.func_closure)
146
else:
147
return types.FunctionType(func.__code__,
148
func.__globals__,
149
func.__name__,
150
func.__defaults__,
151
func.__closure__)
152
153
154
def initlogger(debug, level=logging.WARNING):
155
"""init logger and add loglevel"""
156
157
global syslogger
158
syslogger = (logging.handlers.SysLogHandler(
159
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
160
address="/dev/log"))
161
syslogger.setFormatter(logging.Formatter
162
('Mandos [%(process)d]: %(levelname)s:'
163
' %(message)s'))
164
logger.addHandler(syslogger)
165
166
if debug:
167
console = logging.StreamHandler()
168
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
169
' [%(process)d]:'
170
' %(levelname)s:'
171
' %(message)s'))
172
logger.addHandler(console)
173
logger.setLevel(level)
174
175
176
class PGPError(Exception):
177
"""Exception if encryption/decryption fails"""
178
pass
179
180
181
class PGPEngine(object):
182
"""A simple class for OpenPGP symmetric encryption & decryption"""
183
184
def __init__(self):
185
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
186
self.gpg = "gpg"
187
try:
188
output = subprocess.check_output(["gpgconf"])
189
for line in output.splitlines():
190
name, text, path = line.split(b":")
191
if name == "gpg":
192
self.gpg = path
193
break
194
except OSError as e:
195
if e.errno != errno.ENOENT:
196
raise
197
self.gnupgargs = ['--batch',
198
'--homedir', self.tempdir,
199
'--force-mdc',
200
'--quiet']
201
# Only GPG version 1 has the --no-use-agent option.
202
if self.gpg == "gpg" or self.gpg.endswith("/gpg"):
203
self.gnupgargs.append("--no-use-agent")
204
205
def __enter__(self):
206
return self
207
208
def __exit__(self, exc_type, exc_value, traceback):
209
self._cleanup()
210
return False
211
212
def __del__(self):
213
self._cleanup()
214
215
def _cleanup(self):
216
if self.tempdir is not None:
217
# Delete contents of tempdir
218
for root, dirs, files in os.walk(self.tempdir,
219
topdown=False):
220
for filename in files:
221
os.remove(os.path.join(root, filename))
222
for dirname in dirs:
223
os.rmdir(os.path.join(root, dirname))
224
# Remove tempdir
225
os.rmdir(self.tempdir)
226
self.tempdir = None
227
228
def password_encode(self, password):
229
# Passphrase can not be empty and can not contain newlines or
230
# NUL bytes. So we prefix it and hex encode it.
231
encoded = b"mandos" + binascii.hexlify(password)
232
if len(encoded) > 2048:
233
# GnuPG can't handle long passwords, so encode differently
234
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
235
.replace(b"\n", b"\\n")
236
.replace(b"\0", b"\\x00"))
237
return encoded
238
239
def encrypt(self, data, password):
240
passphrase = self.password_encode(password)
241
with tempfile.NamedTemporaryFile(
242
dir=self.tempdir) as passfile:
243
passfile.write(passphrase)
244
passfile.flush()
245
proc = subprocess.Popen([self.gpg, '--symmetric',
246
'--passphrase-file',
247
passfile.name]
248
+ self.gnupgargs,
249
stdin=subprocess.PIPE,
250
stdout=subprocess.PIPE,
251
stderr=subprocess.PIPE)
252
ciphertext, err = proc.communicate(input=data)
253
if proc.returncode != 0:
254
raise PGPError(err)
255
return ciphertext
256
257
def decrypt(self, data, password):
258
passphrase = self.password_encode(password)
259
with tempfile.NamedTemporaryFile(
260
dir=self.tempdir) as passfile:
261
passfile.write(passphrase)
262
passfile.flush()
263
proc = subprocess.Popen([self.gpg, '--decrypt',
264
'--passphrase-file',
265
passfile.name]
266
+ self.gnupgargs,
267
stdin=subprocess.PIPE,
268
stdout=subprocess.PIPE,
269
stderr=subprocess.PIPE)
270
decrypted_plaintext, err = proc.communicate(input=data)
271
if proc.returncode != 0:
272
raise PGPError(err)
273
return decrypted_plaintext
274
275
276
# Pretend that we have an Avahi module
277
class Avahi(object):
278
"""This isn't so much a class as it is a module-like namespace.
279
It is instantiated once, and simulates having an Avahi module."""
280
IF_UNSPEC = -1 # avahi-common/address.h
281
PROTO_UNSPEC = -1 # avahi-common/address.h
282
PROTO_INET = 0 # avahi-common/address.h
283
PROTO_INET6 = 1 # avahi-common/address.h
284
DBUS_NAME = "org.freedesktop.Avahi"
285
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
286
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
287
DBUS_PATH_SERVER = "/"
288
289
def string_array_to_txt_array(self, t):
290
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
291
for s in t), signature="ay")
292
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
293
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
294
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
295
SERVER_INVALID = 0 # avahi-common/defs.h
296
SERVER_REGISTERING = 1 # avahi-common/defs.h
297
SERVER_RUNNING = 2 # avahi-common/defs.h
298
SERVER_COLLISION = 3 # avahi-common/defs.h
299
SERVER_FAILURE = 4 # avahi-common/defs.h
300
avahi = Avahi()
301
81
SO_BINDTODEVICE = None
82
83
84
version = "1.0.14"
85
86
#logger = logging.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
88
syslogger = (logging.handlers.SysLogHandler
89
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
90
address = "/dev/log"))
91
syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
93
u' %(message)s'))
94
logger.addHandler(syslogger)
95
96
console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
98
u' %(levelname)s:'
99
u' %(message)s'))
100
logger.addHandler(console)
302
101
303
102
class AvahiError(Exception):
304
103
def __init__(self, value, *args, **kwargs):
305
104
self.value = value
306
return super(AvahiError, self).__init__(value, *args,
307
**kwargs)
308
105
super(AvahiError, self).__init__(value, *args, **kwargs)
106
def __unicode__(self):
107
return unicode(repr(self.value))
309
108
310
109
class AvahiServiceError(AvahiError):
311
110
pass
312
111
313
314
112
class AvahiGroupError(AvahiError):
315
113
pass
316
114
317
115
318
116
class AvahiService(object):
319
117
"""An Avahi (Zeroconf) service.
320
118
321
119
Attributes:
322
120
interface: integer; avahi.IF_UNSPEC or an interface index.
323
121
Used to optionally bind to the specified interface.
324
name: string; Example: 'Mandos'
325
type: string; Example: '_mandos._tcp'.
326
See <https://www.iana.org/assignments/service-names-port-numbers>
122
name: string; Example: u'Mandos'
123
type: string; Example: u'_mandos._tcp'.
124
See <http://www.dns-sd.org/ServiceTypes.html>
327
125
port: integer; what port to announce
328
126
TXT: list of strings; TXT record for the service
329
127
domain: string; Domain to publish on, default to .local if empty.
335
133
server: D-Bus Server
336
134
bus: dbus.SystemBus()
337
135
"""
338
339
def __init__(self,
340
interface=avahi.IF_UNSPEC,
341
name=None,
342
servicetype=None,
343
port=None,
344
TXT=None,
345
domain="",
346
host="",
347
max_renames=32768,
348
protocol=avahi.PROTO_UNSPEC,
349
bus=None):
136
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
137
servicetype = None, port = None, TXT = None,
138
domain = u"", host = u"", max_renames = 32768,
139
protocol = avahi.PROTO_UNSPEC, bus = None):
350
140
self.interface = interface
351
141
self.name = name
352
142
self.type = servicetype
360
150
self.group = None # our entry group
361
151
self.server = None
362
152
self.bus = bus
363
self.entry_group_state_changed_match = None
364
365
def rename(self, remove=True):
153
def rename(self):
366
154
"""Derived from the Avahi example code"""
367
155
if self.rename_count >= self.max_renames:
368
logger.critical("No suitable Zeroconf service name found"
369
" after %i retries, exiting.",
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
370
158
self.rename_count)
371
raise AvahiServiceError("Too many renames")
372
self.name = str(
373
self.server.GetAlternativeServiceName(self.name))
159
raise AvahiServiceError(u"Too many renames")
160
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
161
logger.info(u"Changing Zeroconf service name to %r ...",
162
self.name)
163
syslogger.setFormatter(logging.Formatter
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
166
% self.name))
167
self.remove()
168
try:
169
self.add()
170
except dbus.exceptions.DBusException, error:
171
logger.critical(u"DBusException: %s", error)
172
self.cleanup()
173
os._exit(1)
374
174
self.rename_count += 1
375
logger.info("Changing Zeroconf service name to %r ...",
376
self.name)
377
if remove:
378
self.remove()
379
try:
380
self.add()
381
except dbus.exceptions.DBusException as error:
382
if (error.get_dbus_name()
383
== "org.freedesktop.Avahi.CollisionError"):
384
logger.info("Local Zeroconf service name collision.")
385
return self.rename(remove=False)
386
else:
387
logger.critical("D-Bus Exception", exc_info=error)
388
self.cleanup()
389
os._exit(1)
390
391
175
def remove(self):
392
176
"""Derived from the Avahi example code"""
393
if self.entry_group_state_changed_match is not None:
394
self.entry_group_state_changed_match.remove()
395
self.entry_group_state_changed_match = None
396
177
if self.group is not None:
397
178
self.group.Reset()
398
399
179
def add(self):
400
180
"""Derived from the Avahi example code"""
401
self.remove()
402
181
if self.group is None:
403
182
self.group = dbus.Interface(
404
183
self.bus.get_object(avahi.DBUS_NAME,
405
184
self.server.EntryGroupNew()),
406
185
avahi.DBUS_INTERFACE_ENTRY_GROUP)
407
self.entry_group_state_changed_match = (
408
self.group.connect_to_signal(
409
'StateChanged', self.entry_group_state_changed))
410
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
186
self.group.connect_to_signal('StateChanged',
187
self
188
.entry_group_state_changed)
189
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
411
190
self.name, self.type)
412
191
self.group.AddService(
413
192
self.interface,
418
197
dbus.UInt16(self.port),
419
198
avahi.string_array_to_txt_array(self.TXT))
420
199
self.group.Commit()
421
422
200
def entry_group_state_changed(self, state, error):
423
201
"""Derived from the Avahi example code"""
424
logger.debug("Avahi entry group state change: %i", state)
425
202
logger.debug(u"Avahi entry group state change: %i", state)
203
426
204
if state == avahi.ENTRY_GROUP_ESTABLISHED:
427
logger.debug("Zeroconf service established.")
205
logger.debug(u"Zeroconf service established.")
428
206
elif state == avahi.ENTRY_GROUP_COLLISION:
429
logger.info("Zeroconf service name collision.")
207
logger.warning(u"Zeroconf service name collision.")
430
208
self.rename()
431
209
elif state == avahi.ENTRY_GROUP_FAILURE:
432
logger.critical("Avahi: Error in group state changed %s",
433
str(error))
434
raise AvahiGroupError("State changed: {!s}".format(error))
435
210
logger.critical(u"Avahi: Error in group state changed %s",
211
unicode(error))
212
raise AvahiGroupError(u"State changed: %s"
213
% unicode(error))
436
214
def cleanup(self):
437
215
"""Derived from the Avahi example code"""
438
216
if self.group is not None:
439
try:
440
self.group.Free()
441
except (dbus.exceptions.UnknownMethodException,
442
dbus.exceptions.DBusException):
443
pass
217
self.group.Free()
444
218
self.group = None
445
self.remove()
446
447
def server_state_changed(self, state, error=None):
219
def server_state_changed(self, state):
448
220
"""Derived from the Avahi example code"""
449
logger.debug("Avahi server state change: %i", state)
450
bad_states = {
451
avahi.SERVER_INVALID: "Zeroconf server invalid",
452
avahi.SERVER_REGISTERING: None,
453
avahi.SERVER_COLLISION: "Zeroconf server name collision",
454
avahi.SERVER_FAILURE: "Zeroconf server failure",
455
}
456
if state in bad_states:
457
if bad_states[state] is not None:
458
if error is None:
459
logger.error(bad_states[state])
460
else:
461
logger.error(bad_states[state] + ": %r", error)
462
self.cleanup()
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
224
self.remove()
463
225
elif state == avahi.SERVER_RUNNING:
464
try:
465
self.add()
466
except dbus.exceptions.DBusException as error:
467
if (error.get_dbus_name()
468
== "org.freedesktop.Avahi.CollisionError"):
469
logger.info("Local Zeroconf service name"
470
" collision.")
471
return self.rename(remove=False)
472
else:
473
logger.critical("D-Bus Exception", exc_info=error)
474
self.cleanup()
475
os._exit(1)
476
else:
477
if error is None:
478
logger.debug("Unknown state: %r", state)
479
else:
480
logger.debug("Unknown state: %r: %r", state, error)
481
226
self.add()
482
227
def activate(self):
483
228
"""Derived from the Avahi example code"""
484
229
if self.server is None:
485
230
self.server = dbus.Interface(
486
231
self.bus.get_object(avahi.DBUS_NAME,
487
avahi.DBUS_PATH_SERVER,
488
follow_name_owner_changes=True),
232
avahi.DBUS_PATH_SERVER),
489
233
avahi.DBUS_INTERFACE_SERVER)
490
self.server.connect_to_signal("StateChanged",
491
self.server_state_changed)
234
self.server.connect_to_signal(u"StateChanged",
235
self.server_state_changed)
492
236
self.server_state_changed(self.server.GetState())
493
237
494
238
495
class AvahiServiceToSyslog(AvahiService):
496
def rename(self, *args, **kwargs):
497
"""Add the new name to the syslog messages"""
498
ret = AvahiService.rename(self, *args, **kwargs)
499
syslogger.setFormatter(logging.Formatter(
500
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
501
.format(self.name)))
502
return ret
503
504
505
# Pretend that we have a GnuTLS module
506
class GnuTLS(object):
507
"""This isn't so much a class as it is a module-like namespace.
508
It is instantiated once, and simulates having a GnuTLS module."""
509
510
library = ctypes.util.find_library("gnutls")
511
if library is None:
512
library = ctypes.util.find_library("gnutls-deb0")
513
_library = ctypes.cdll.LoadLibrary(library)
514
del library
515
_need_version = b"3.3.0"
516
517
def __init__(self):
518
# Need to use class name "GnuTLS" here, since this method is
519
# called before the assignment to the "gnutls" global variable
520
# happens.
521
if GnuTLS.check_version(self._need_version) is None:
522
raise GnuTLS.Error("Needs GnuTLS {} or later"
523
.format(self._need_version))
524
525
# Unless otherwise indicated, the constants and types below are
526
# all from the gnutls/gnutls.h C header file.
527
528
# Constants
529
E_SUCCESS = 0
530
E_INTERRUPTED = -52
531
E_AGAIN = -28
532
CRT_OPENPGP = 2
533
CLIENT = 2
534
SHUT_RDWR = 0
535
CRD_CERTIFICATE = 1
536
E_NO_CERTIFICATE_FOUND = -49
537
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
538
539
# Types
540
class session_int(ctypes.Structure):
541
_fields_ = []
542
session_t = ctypes.POINTER(session_int)
543
544
class certificate_credentials_st(ctypes.Structure):
545
_fields_ = []
546
certificate_credentials_t = ctypes.POINTER(
547
certificate_credentials_st)
548
certificate_type_t = ctypes.c_int
549
550
class datum_t(ctypes.Structure):
551
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
552
('size', ctypes.c_uint)]
553
554
class openpgp_crt_int(ctypes.Structure):
555
_fields_ = []
556
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
557
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
558
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
559
credentials_type_t = ctypes.c_int
560
transport_ptr_t = ctypes.c_void_p
561
close_request_t = ctypes.c_int
562
563
# Exceptions
564
class Error(Exception):
565
# We need to use the class name "GnuTLS" here, since this
566
# exception might be raised from within GnuTLS.__init__,
567
# which is called before the assignment to the "gnutls"
568
# global variable has happened.
569
def __init__(self, message=None, code=None, args=()):
570
# Default usage is by a message string, but if a return
571
# code is passed, convert it to a string with
572
# gnutls.strerror()
573
self.code = code
574
if message is None and code is not None:
575
message = GnuTLS.strerror(code)
576
return super(GnuTLS.Error, self).__init__(
577
message, *args)
578
579
class CertificateSecurityError(Error):
580
pass
581
582
# Classes
583
class Credentials(object):
584
def __init__(self):
585
self._c_object = gnutls.certificate_credentials_t()
586
gnutls.certificate_allocate_credentials(
587
ctypes.byref(self._c_object))
588
self.type = gnutls.CRD_CERTIFICATE
589
590
def __del__(self):
591
gnutls.certificate_free_credentials(self._c_object)
592
593
class ClientSession(object):
594
def __init__(self, socket, credentials=None):
595
self._c_object = gnutls.session_t()
596
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
597
gnutls.set_default_priority(self._c_object)
598
gnutls.transport_set_ptr(self._c_object, socket.fileno())
599
gnutls.handshake_set_private_extensions(self._c_object,
600
True)
601
self.socket = socket
602
if credentials is None:
603
credentials = gnutls.Credentials()
604
gnutls.credentials_set(self._c_object, credentials.type,
605
ctypes.cast(credentials._c_object,
606
ctypes.c_void_p))
607
self.credentials = credentials
608
609
def __del__(self):
610
gnutls.deinit(self._c_object)
611
612
def handshake(self):
613
return gnutls.handshake(self._c_object)
614
615
def send(self, data):
616
data = bytes(data)
617
data_len = len(data)
618
while data_len > 0:
619
data_len -= gnutls.record_send(self._c_object,
620
data[-data_len:],
621
data_len)
622
623
def bye(self):
624
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
625
626
# Error handling functions
627
def _error_code(result):
628
"""A function to raise exceptions on errors, suitable
629
for the 'restype' attribute on ctypes functions"""
630
if result >= 0:
631
return result
632
if result == gnutls.E_NO_CERTIFICATE_FOUND:
633
raise gnutls.CertificateSecurityError(code=result)
634
raise gnutls.Error(code=result)
635
636
def _retry_on_error(result, func, arguments):
637
"""A function to retry on some errors, suitable
638
for the 'errcheck' attribute on ctypes functions"""
639
while result < 0:
640
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
641
return _error_code(result)
642
result = func(*arguments)
643
return result
644
645
# Unless otherwise indicated, the function declarations below are
646
# all from the gnutls/gnutls.h C header file.
647
648
# Functions
649
priority_set_direct = _library.gnutls_priority_set_direct
650
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
651
ctypes.POINTER(ctypes.c_char_p)]
652
priority_set_direct.restype = _error_code
653
654
init = _library.gnutls_init
655
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
656
init.restype = _error_code
657
658
set_default_priority = _library.gnutls_set_default_priority
659
set_default_priority.argtypes = [session_t]
660
set_default_priority.restype = _error_code
661
662
record_send = _library.gnutls_record_send
663
record_send.argtypes = [session_t, ctypes.c_void_p,
664
ctypes.c_size_t]
665
record_send.restype = ctypes.c_ssize_t
666
record_send.errcheck = _retry_on_error
667
668
certificate_allocate_credentials = (
669
_library.gnutls_certificate_allocate_credentials)
670
certificate_allocate_credentials.argtypes = [
671
ctypes.POINTER(certificate_credentials_t)]
672
certificate_allocate_credentials.restype = _error_code
673
674
certificate_free_credentials = (
675
_library.gnutls_certificate_free_credentials)
676
certificate_free_credentials.argtypes = [
677
certificate_credentials_t]
678
certificate_free_credentials.restype = None
679
680
handshake_set_private_extensions = (
681
_library.gnutls_handshake_set_private_extensions)
682
handshake_set_private_extensions.argtypes = [session_t,
683
ctypes.c_int]
684
handshake_set_private_extensions.restype = None
685
686
credentials_set = _library.gnutls_credentials_set
687
credentials_set.argtypes = [session_t, credentials_type_t,
688
ctypes.c_void_p]
689
credentials_set.restype = _error_code
690
691
strerror = _library.gnutls_strerror
692
strerror.argtypes = [ctypes.c_int]
693
strerror.restype = ctypes.c_char_p
694
695
certificate_type_get = _library.gnutls_certificate_type_get
696
certificate_type_get.argtypes = [session_t]
697
certificate_type_get.restype = _error_code
698
699
certificate_get_peers = _library.gnutls_certificate_get_peers
700
certificate_get_peers.argtypes = [session_t,
701
ctypes.POINTER(ctypes.c_uint)]
702
certificate_get_peers.restype = ctypes.POINTER(datum_t)
703
704
global_set_log_level = _library.gnutls_global_set_log_level
705
global_set_log_level.argtypes = [ctypes.c_int]
706
global_set_log_level.restype = None
707
708
global_set_log_function = _library.gnutls_global_set_log_function
709
global_set_log_function.argtypes = [log_func]
710
global_set_log_function.restype = None
711
712
deinit = _library.gnutls_deinit
713
deinit.argtypes = [session_t]
714
deinit.restype = None
715
716
handshake = _library.gnutls_handshake
717
handshake.argtypes = [session_t]
718
handshake.restype = _error_code
719
handshake.errcheck = _retry_on_error
720
721
transport_set_ptr = _library.gnutls_transport_set_ptr
722
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
723
transport_set_ptr.restype = None
724
725
bye = _library.gnutls_bye
726
bye.argtypes = [session_t, close_request_t]
727
bye.restype = _error_code
728
bye.errcheck = _retry_on_error
729
730
check_version = _library.gnutls_check_version
731
check_version.argtypes = [ctypes.c_char_p]
732
check_version.restype = ctypes.c_char_p
733
734
# All the function declarations below are from gnutls/openpgp.h
735
736
openpgp_crt_init = _library.gnutls_openpgp_crt_init
737
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
738
openpgp_crt_init.restype = _error_code
739
740
openpgp_crt_import = _library.gnutls_openpgp_crt_import
741
openpgp_crt_import.argtypes = [openpgp_crt_t,
742
ctypes.POINTER(datum_t),
743
openpgp_crt_fmt_t]
744
openpgp_crt_import.restype = _error_code
745
746
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
747
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
748
ctypes.POINTER(ctypes.c_uint)]
749
openpgp_crt_verify_self.restype = _error_code
750
751
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
752
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
753
openpgp_crt_deinit.restype = None
754
755
openpgp_crt_get_fingerprint = (
756
_library.gnutls_openpgp_crt_get_fingerprint)
757
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
758
ctypes.c_void_p,
759
ctypes.POINTER(
760
ctypes.c_size_t)]
761
openpgp_crt_get_fingerprint.restype = _error_code
762
763
# Remove non-public functions
764
del _error_code, _retry_on_error
765
# Create the global "gnutls" object, simulating a module
766
gnutls = GnuTLS()
767
768
769
def call_pipe(connection, # : multiprocessing.Connection
770
func, *args, **kwargs):
771
"""This function is meant to be called by multiprocessing.Process
772
773
This function runs func(*args, **kwargs), and writes the resulting
774
return value on the provided multiprocessing.Connection.
775
"""
776
connection.send(func(*args, **kwargs))
777
connection.close()
778
779
780
239
class Client(object):
781
240
"""A representation of a client host served by this server.
782
241
783
242
Attributes:
784
approved: bool(); 'None' if not yet approved/disapproved
785
approval_delay: datetime.timedelta(); Time to wait for approval
786
approval_duration: datetime.timedelta(); Duration of one approval
243
name: string; from the config file, used in log messages and
244
D-Bus identifiers
245
fingerprint: string (40 or 32 hexadecimal digits); used to
246
uniquely identify the client
247
secret: bytestring; sent verbatim (over TLS) to client
248
host: string; available for use by the checker command
249
created: datetime.datetime(); (UTC) object creation
250
last_enabled: datetime.datetime(); (UTC)
251
enabled: bool()
252
last_checked_ok: datetime.datetime(); (UTC) or None
253
timeout: datetime.timedelta(); How long from last_checked_ok
254
until this client is disabled
255
interval: datetime.timedelta(); How often to start a new checker
256
disable_hook: If set, called by disable() as disable_hook(self)
787
257
checker: subprocess.Popen(); a running checker process used
788
258
to see if the client lives.
789
259
'None' if no process is running.
790
checker_callback_tag: a GLib event source tag, or None
791
checker_command: string; External command which is run to check
792
if client lives. %() expansions are done at
260
checker_initiator_tag: a gobject event source tag, or None
261
disable_initiator_tag: - '' -
262
checker_callback_tag: - '' -
263
checker_command: string; External command which is run to check if
264
client lives. %() expansions are done at
793
265
runtime with vars(self) as dict, so that for
794
266
instance %(name)s can be used in the command.
795
checker_initiator_tag: a GLib event source tag, or None
796
created: datetime.datetime(); (UTC) object creation
797
client_structure: Object describing what attributes a client has
798
and is used for storing the client at exit
799
267
current_checker_command: string; current running checker_command
800
disable_initiator_tag: a GLib event source tag, or None
801
enabled: bool()
802
fingerprint: string (40 or 32 hexadecimal digits); used to
803
uniquely identify the client
804
host: string; available for use by the checker command
805
interval: datetime.timedelta(); How often to start a new checker
806
last_approval_request: datetime.datetime(); (UTC) or None
807
last_checked_ok: datetime.datetime(); (UTC) or None
808
last_checker_status: integer between 0 and 255 reflecting exit
809
status of last checker. -1 reflects crashed
810
checker, -2 means no checker completed yet.
811
last_checker_signal: The signal which killed the last checker, if
812
last_checker_status is -1
813
last_enabled: datetime.datetime(); (UTC) or None
814
name: string; from the config file, used in log messages and
815
D-Bus identifiers
816
secret: bytestring; sent verbatim (over TLS) to client
817
timeout: datetime.timedelta(); How long from last_checked_ok
818
until this client is disabled
819
extended_timeout: extra long timeout when secret has been sent
820
runtime_expansions: Allowed attributes for runtime expansion.
821
expires: datetime.datetime(); time (UTC) when a client will be
822
disabled, or None
823
server_settings: The server_settings dict from main()
268
approval_delay: datetime.timedelta(); Time to wait for approval
269
_approved: bool(); 'None' if not yet approved/disapproved
270
approval_duration: datetime.timedelta(); Duration of one approval
824
271
"""
825
826
runtime_expansions = ("approval_delay", "approval_duration",
827
"created", "enabled", "expires",
828
"fingerprint", "host", "interval",
829
"last_approval_request", "last_checked_ok",
830
"last_enabled", "name", "timeout")
831
client_defaults = {
832
"timeout": "PT5M",
833
"extended_timeout": "PT15M",
834
"interval": "PT2M",
835
"checker": "fping -q -- %%(host)s",
836
"host": "",
837
"approval_delay": "PT0S",
838
"approval_duration": "PT1S",
839
"approved_by_default": "True",
840
"enabled": "True",
841
}
842
272
843
273
@staticmethod
844
def config_parser(config):
845
"""Construct a new dict of client settings of this form:
846
{ client_name: {setting_name: value, ...}, ...}
847
with exceptions for any special settings as defined above.
848
NOTE: Must be a pure function. Must return the same result
849
value given the same arguments.
850
"""
851
settings = {}
852
for client_name in config.sections():
853
section = dict(config.items(client_name))
854
client = settings[client_name] = {}
855
856
client["host"] = section["host"]
857
# Reformat values from string types to Python types
858
client["approved_by_default"] = config.getboolean(
859
client_name, "approved_by_default")
860
client["enabled"] = config.getboolean(client_name,
861
"enabled")
862
863
# Uppercase and remove spaces from fingerprint for later
864
# comparison purposes with return value from the
865
# fingerprint() function
866
client["fingerprint"] = (section["fingerprint"].upper()
867
.replace(" ", ""))
868
if "secret" in section:
869
client["secret"] = codecs.decode(section["secret"]
870
.encode("utf-8"),
871
"base64")
872
elif "secfile" in section:
873
with open(os.path.expanduser(os.path.expandvars
874
(section["secfile"])),
875
"rb") as secfile:
876
client["secret"] = secfile.read()
877
else:
878
raise TypeError("No secret or secfile for section {}"
879
.format(section))
880
client["timeout"] = string_to_delta(section["timeout"])
881
client["extended_timeout"] = string_to_delta(
882
section["extended_timeout"])
883
client["interval"] = string_to_delta(section["interval"])
884
client["approval_delay"] = string_to_delta(
885
section["approval_delay"])
886
client["approval_duration"] = string_to_delta(
887
section["approval_duration"])
888
client["checker_command"] = section["checker"]
889
client["last_approval_request"] = None
890
client["last_checked_ok"] = None
891
client["last_checker_status"] = -2
892
893
return settings
894
895
def __init__(self, settings, name=None, server_settings=None):
274
def _timedelta_to_milliseconds(td):
275
"Convert a datetime.timedelta() to milliseconds"
276
return ((td.days * 24 * 60 * 60 * 1000)
277
+ (td.seconds * 1000)
278
+ (td.microseconds // 1000))
279
280
def timeout_milliseconds(self):
281
"Return the 'timeout' attribute in milliseconds"
282
return self._timedelta_to_milliseconds(self.timeout)
283
284
def interval_milliseconds(self):
285
"Return the 'interval' attribute in milliseconds"
286
return self._timedelta_to_milliseconds(self.interval)
287
288
def approval_delay_milliseconds(self):
289
return self._timedelta_to_milliseconds(self.approval_delay)
290
291
def __init__(self, name = None, disable_hook=None, config=None):
292
"""Note: the 'checker' key in 'config' sets the
293
'checker_command' attribute and *not* the 'checker'
294
attribute."""
896
295
self.name = name
897
if server_settings is None:
898
server_settings = {}
899
self.server_settings = server_settings
900
# adding all client settings
901
for setting, value in settings.items():
902
setattr(self, setting, value)
903
904
if self.enabled:
905
if not hasattr(self, "last_enabled"):
906
self.last_enabled = datetime.datetime.utcnow()
907
if not hasattr(self, "expires"):
908
self.expires = (datetime.datetime.utcnow()
909
+ self.timeout)
296
if config is None:
297
config = {}
298
logger.debug(u"Creating client %r", self.name)
299
# Uppercase and remove spaces from fingerprint for later
300
# comparison purposes with return value from the fingerprint()
301
# function
302
self.fingerprint = (config[u"fingerprint"].upper()
303
.replace(u" ", u""))
304
logger.debug(u" Fingerprint: %s", self.fingerprint)
305
if u"secret" in config:
306
self.secret = config[u"secret"].decode(u"base64")
307
elif u"secfile" in config:
308
with open(os.path.expanduser(os.path.expandvars
309
(config[u"secfile"])),
310
"rb") as secfile:
311
self.secret = secfile.read()
910
312
else:
911
self.last_enabled = None
912
self.expires = None
913
914
logger.debug("Creating client %r", self.name)
915
logger.debug(" Fingerprint: %s", self.fingerprint)
916
self.created = settings.get("created",
917
datetime.datetime.utcnow())
918
919
# attributes specific for this server instance
313
raise TypeError(u"No secret or secfile for client %s"
314
% self.name)
315
self.host = config.get(u"host", u"")
316
self.created = datetime.datetime.utcnow()
317
self.enabled = False
318
self.last_enabled = None
319
self.last_checked_ok = None
320
self.timeout = string_to_delta(config[u"timeout"])
321
self.interval = string_to_delta(config[u"interval"])
322
self.disable_hook = disable_hook
920
323
self.checker = None
921
324
self.checker_initiator_tag = None
922
325
self.disable_initiator_tag = None
923
326
self.checker_callback_tag = None
327
self.checker_command = config[u"checker"]
924
328
self.current_checker_command = None
925
self.approved = None
329
self.last_connect = None
330
self._approved = None
331
self.approved_by_default = config.get(u"approved_by_default",
332
True)
926
333
self.approvals_pending = 0
927
self.changedstate = multiprocessing_manager.Condition(
928
multiprocessing_manager.Lock())
929
self.client_structure = [attr
930
for attr in self.__dict__.keys()
931
if not attr.startswith("_")]
932
self.client_structure.append("client_structure")
933
934
for name, t in inspect.getmembers(
935
type(self), lambda obj: isinstance(obj, property)):
936
if not name.startswith("_"):
937
self.client_structure.append(name)
938
939
# Send notice to process children that client state has changed
334
self.approval_delay = string_to_delta(
335
config[u"approval_delay"])
336
self.approval_duration = string_to_delta(
337
config[u"approval_duration"])
338
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
339
940
340
def send_changedstate(self):
941
with self.changedstate:
942
self.changedstate.notify_all()
943
341
self.changedstate.acquire()
342
self.changedstate.notify_all()
343
self.changedstate.release()
344
944
345
def enable(self):
945
346
"""Start this client's checker and timeout hooks"""
946
if getattr(self, "enabled", False):
347
if getattr(self, u"enabled", False):
947
348
# Already enabled
948
349
return
949
self.expires = datetime.datetime.utcnow() + self.timeout
950
self.enabled = True
350
self.send_changedstate()
951
351
self.last_enabled = datetime.datetime.utcnow()
952
self.init_checker()
953
self.send_changedstate()
954
352
# Schedule a new checker to be started an 'interval' from now,
353
# and every interval from then on.
354
self.checker_initiator_tag = (gobject.timeout_add
355
(self.interval_milliseconds(),
356
self.start_checker))
357
# Schedule a disable() when 'timeout' has passed
358
self.disable_initiator_tag = (gobject.timeout_add
359
(self.timeout_milliseconds(),
360
self.disable))
361
self.enabled = True
362
# Also start a new checker *right now*.
363
self.start_checker()
364
955
365
def disable(self, quiet=True):
956
366
"""Disable this client."""
957
367
if not getattr(self, "enabled", False):
958
368
return False
959
369
if not quiet:
960
logger.info("Disabling client %s", self.name)
961
if getattr(self, "disable_initiator_tag", None) is not None:
962
GLib.source_remove(self.disable_initiator_tag)
370
self.send_changedstate()
371
if not quiet:
372
logger.info(u"Disabling client %s", self.name)
373
if getattr(self, u"disable_initiator_tag", False):
374
gobject.source_remove(self.disable_initiator_tag)
963
375
self.disable_initiator_tag = None
964
self.expires = None
965
if getattr(self, "checker_initiator_tag", None) is not None:
966
GLib.source_remove(self.checker_initiator_tag)
376
if getattr(self, u"checker_initiator_tag", False):
377
gobject.source_remove(self.checker_initiator_tag)
967
378
self.checker_initiator_tag = None
968
379
self.stop_checker()
380
if self.disable_hook:
381
self.disable_hook(self)
969
382
self.enabled = False
970
if not quiet:
971
self.send_changedstate()
972
# Do not run this again if called by a GLib.timeout_add
383
# Do not run this again if called by a gobject.timeout_add
973
384
return False
974
385
975
386
def __del__(self):
387
self.disable_hook = None
976
388
self.disable()
977
978
def init_checker(self):
979
# Schedule a new checker to be started an 'interval' from now,
980
# and every interval from then on.
981
if self.checker_initiator_tag is not None:
982
GLib.source_remove(self.checker_initiator_tag)
983
self.checker_initiator_tag = GLib.timeout_add(
984
int(self.interval.total_seconds() * 1000),
985
self.start_checker)
986
# Schedule a disable() when 'timeout' has passed
987
if self.disable_initiator_tag is not None:
988
GLib.source_remove(self.disable_initiator_tag)
989
self.disable_initiator_tag = GLib.timeout_add(
990
int(self.timeout.total_seconds() * 1000), self.disable)
991
# Also start a new checker *right now*.
992
self.start_checker()
993
994
def checker_callback(self, source, condition, connection,
995
command):
389
390
def checker_callback(self, pid, condition, command):
996
391
"""The checker has completed, so take appropriate actions."""
997
392
self.checker_callback_tag = None
998
393
self.checker = None
999
# Read return code from connection (see call_pipe)
1000
returncode = connection.recv()
1001
connection.close()
1002
1003
if returncode >= 0:
1004
self.last_checker_status = returncode
1005
self.last_checker_signal = None
1006
if self.last_checker_status == 0:
1007
logger.info("Checker for %(name)s succeeded",
394
if os.WIFEXITED(condition):
395
exitstatus = os.WEXITSTATUS(condition)
396
if exitstatus == 0:
397
logger.info(u"Checker for %(name)s succeeded",
1008
398
vars(self))
1009
399
self.checked_ok()
1010
400
else:
1011
logger.info("Checker for %(name)s failed", vars(self))
401
logger.info(u"Checker for %(name)s failed",
402
vars(self))
1012
403
else:
1013
self.last_checker_status = -1
1014
self.last_checker_signal = -returncode
1015
logger.warning("Checker for %(name)s crashed?",
404
logger.warning(u"Checker for %(name)s crashed?",
1016
405
vars(self))
1017
return False
1018
406
1019
407
def checked_ok(self):
1020
"""Assert that the client has been seen, alive and well."""
408
"""Bump up the timeout for this client.
409
410
This should only be called when the client has been seen,
411
alive and well.
412
"""
1021
413
self.last_checked_ok = datetime.datetime.utcnow()
1022
self.last_checker_status = 0
1023
self.last_checker_signal = None
1024
self.bump_timeout()
1025
1026
def bump_timeout(self, timeout=None):
1027
"""Bump up the timeout for this client."""
1028
if timeout is None:
1029
timeout = self.timeout
1030
if self.disable_initiator_tag is not None:
1031
GLib.source_remove(self.disable_initiator_tag)
1032
self.disable_initiator_tag = None
1033
if getattr(self, "enabled", False):
1034
self.disable_initiator_tag = GLib.timeout_add(
1035
int(timeout.total_seconds() * 1000), self.disable)
1036
self.expires = datetime.datetime.utcnow() + timeout
1037
1038
def need_approval(self):
1039
self.last_approval_request = datetime.datetime.utcnow()
1040
414
gobject.source_remove(self.disable_initiator_tag)
415
self.disable_initiator_tag = (gobject.timeout_add
416
(self.timeout_milliseconds(),
417
self.disable))
418
1041
419
def start_checker(self):
1042
420
"""Start a new checker subprocess if one is not running.
1043
421
1044
422
If a checker already exists, leave it running and do
1045
423
nothing."""
1046
424
# The reason for not killing a running checker is that if we
1047
# did that, and if a checker (for some reason) started running
1048
# slowly and taking more than 'interval' time, then the client
1049
# would inevitably timeout, since no checker would get a
1050
# chance to run to completion. If we instead leave running
425
# did that, then if a checker (for some reason) started
426
# running slowly and taking more than 'interval' time, the
427
# client would inevitably timeout, since no checker would get
428
# a chance to run to completion. If we instead leave running
1051
429
# checkers alone, the checker would have to take more time
1052
430
# than 'timeout' for the client to be disabled, which is as it
1053
431
# should be.
1054
1055
if self.checker is not None and not self.checker.is_alive():
1056
logger.warning("Checker was not alive; joining")
1057
self.checker.join()
1058
self.checker = None
432
433
# If a checker exists, make sure it is not a zombie
434
try:
435
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
436
except (AttributeError, OSError), error:
437
if (isinstance(error, OSError)
438
and error.errno != errno.ECHILD):
439
raise error
440
else:
441
if pid:
442
logger.warning(u"Checker was a zombie")
443
gobject.source_remove(self.checker_callback_tag)
444
self.checker_callback(pid, status,
445
self.current_checker_command)
1059
446
# Start a new checker if needed
1060
447
if self.checker is None:
1061
# Escape attributes for the shell
1062
escaped_attrs = {
1063
attr: re.escape(str(getattr(self, attr)))
1064
for attr in self.runtime_expansions}
1065
448
try:
1066
command = self.checker_command % escaped_attrs
1067
except TypeError as error:
1068
logger.error('Could not format string "%s"',
1069
self.checker_command,
1070
exc_info=error)
1071
return True # Try again later
449
# In case checker_command has exactly one % operator
450
command = self.checker_command % self.host
451
except TypeError:
452
# Escape attributes for the shell
453
escaped_attrs = dict((key,
454
re.escape(unicode(str(val),
455
errors=
456
u'replace')))
457
for key, val in
458
vars(self).iteritems())
459
try:
460
command = self.checker_command % escaped_attrs
461
except TypeError, error:
462
logger.error(u'Could not format string "%s":'
463
u' %s', self.checker_command, error)
464
return True # Try again later
1072
465
self.current_checker_command = command
1073
logger.info("Starting checker %r for %s", command,
1074
self.name)
1075
# We don't need to redirect stdout and stderr, since
1076
# in normal mode, that is already done by daemon(),
1077
# and in debug mode we don't want to. (Stdin is
1078
# always replaced by /dev/null.)
1079
# The exception is when not debugging but nevertheless
1080
# running in the foreground; use the previously
1081
# created wnull.
1082
popen_args = {"close_fds": True,
1083
"shell": True,
1084
"cwd": "/"}
1085
if (not self.server_settings["debug"]
1086
and self.server_settings["foreground"]):
1087
popen_args.update({"stdout": wnull,
1088
"stderr": wnull})
1089
pipe = multiprocessing.Pipe(duplex=False)
1090
self.checker = multiprocessing.Process(
1091
target=call_pipe,
1092
args=(pipe[1], subprocess.call, command),
1093
kwargs=popen_args)
1094
self.checker.start()
1095
self.checker_callback_tag = GLib.io_add_watch(
1096
pipe[0].fileno(), GLib.IO_IN,
1097
self.checker_callback, pipe[0], command)
1098
# Re-run this periodically if run by GLib.timeout_add
466
try:
467
logger.info(u"Starting checker %r for %s",
468
command, self.name)
469
# We don't need to redirect stdout and stderr, since
470
# in normal mode, that is already done by daemon(),
471
# and in debug mode we don't want to. (Stdin is
472
# always replaced by /dev/null.)
473
self.checker = subprocess.Popen(command,
474
close_fds=True,
475
shell=True, cwd=u"/")
476
self.checker_callback_tag = (gobject.child_watch_add
477
(self.checker.pid,
478
self.checker_callback,
479
data=command))
480
# The checker may have completed before the gobject
481
# watch was added. Check for this.
482
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
483
if pid:
484
gobject.source_remove(self.checker_callback_tag)
485
self.checker_callback(pid, status, command)
486
except OSError, error:
487
logger.error(u"Failed to start subprocess: %s",
488
error)
489
# Re-run this periodically if run by gobject.timeout_add
1099
490
return True
1100
491
1101
492
def stop_checker(self):
1102
493
"""Force the checker process, if any, to stop."""
1103
494
if self.checker_callback_tag:
1104
GLib.source_remove(self.checker_callback_tag)
495
gobject.source_remove(self.checker_callback_tag)
1105
496
self.checker_callback_tag = None
1106
if getattr(self, "checker", None) is None:
497
if getattr(self, u"checker", None) is None:
1107
498
return
1108
logger.debug("Stopping checker for %(name)s", vars(self))
1109
self.checker.terminate()
499
logger.debug(u"Stopping checker for %(name)s", vars(self))
500
try:
501
os.kill(self.checker.pid, signal.SIGTERM)
502
#time.sleep(0.5)
503
#if self.checker.poll() is None:
504
# os.kill(self.checker.pid, signal.SIGKILL)
505
except OSError, error:
506
if error.errno != errno.ESRCH: # No such process
507
raise
1110
508
self.checker = None
1111
509
1112
1113
def dbus_service_property(dbus_interface,
1114
signature="v",
1115
access="readwrite",
1116
byte_arrays=False):
510
def dbus_service_property(dbus_interface, signature=u"v",
511
access=u"readwrite", byte_arrays=False):
1117
512
"""Decorators for marking methods of a DBusObjectWithProperties to
1118
513
become properties on the D-Bus.
1119
514
1120
515
The decorated method will be called with no arguments by "Get"
1121
516
and with one argument by "Set".
1122
517
1123
518
The parameters, where they are supported, are the same as
1124
519
dbus.service.method, except there is only "signature", since the
1125
520
type from Get() and the type sent to Set() is the same.
1126
521
"""
1127
522
# Encoding deeply encoded byte arrays is not supported yet by the
1128
523
# "Set" method, so we fail early here:
1129
if byte_arrays and signature != "ay":
1130
raise ValueError("Byte arrays not supported for non-'ay'"
1131
" signature {!r}".format(signature))
1132
524
if byte_arrays and signature != u"ay":
525
raise ValueError(u"Byte arrays not supported for non-'ay'"
526
u" signature %r" % signature)
1133
527
def decorator(func):
1134
528
func._dbus_is_property = True
1135
529
func._dbus_interface = dbus_interface
1136
530
func._dbus_signature = signature
1137
531
func._dbus_access = access
1138
532
func._dbus_name = func.__name__
1139
if func._dbus_name.endswith("_dbus_property"):
533
if func._dbus_name.endswith(u"_dbus_property"):
1140
534
func._dbus_name = func._dbus_name[:-14]
1141
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1142
return func
1143
1144
return decorator
1145
1146
1147
def dbus_interface_annotations(dbus_interface):
1148
"""Decorator for marking functions returning interface annotations
1149
1150
Usage:
1151
1152
@dbus_interface_annotations("org.example.Interface")
1153
def _foo(self): # Function name does not matter
1154
return {"org.freedesktop.DBus.Deprecated": "true",
1155
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1156
"false"}
1157
"""
1158
1159
def decorator(func):
1160
func._dbus_is_interface = True
1161
func._dbus_interface = dbus_interface
1162
func._dbus_name = dbus_interface
1163
return func
1164
1165
return decorator
1166
1167
1168
def dbus_annotations(annotations):
1169
"""Decorator to annotate D-Bus methods, signals or properties
1170
Usage:
1171
1172
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1173
"org.freedesktop.DBus.Property."
1174
"EmitsChangedSignal": "false"})
1175
@dbus_service_property("org.example.Interface", signature="b",
1176
access="r")
1177
def Property_dbus_property(self):
1178
return dbus.Boolean(False)
1179
1180
See also the DBusObjectWithAnnotations class.
1181
"""
1182
1183
def decorator(func):
1184
func._dbus_annotations = annotations
1185
return func
1186
535
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
536
return func
1187
537
return decorator
1188
538
1189
539
1190
540
class DBusPropertyException(dbus.exceptions.DBusException):
1191
541
"""A base class for D-Bus property-related exceptions
1192
542
"""
1193
pass
543
def __unicode__(self):
544
return unicode(str(self))
1194
545
1195
546
1196
547
class DBusPropertyAccessException(DBusPropertyException):
1205
556
pass
1206
557
1207
558
1208
class DBusObjectWithAnnotations(dbus.service.Object):
1209
"""A D-Bus object with annotations.
1210
1211
Classes inheriting from this can use the dbus_annotations
1212
decorator to add annotations to methods or signals.
1213
"""
1214
1215
@staticmethod
1216
def _is_dbus_thing(thing):
1217
"""Returns a function testing if an attribute is a D-Bus thing
1218
1219
If called like _is_dbus_thing("method") it returns a function
1220
suitable for use as predicate to inspect.getmembers().
1221
"""
1222
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1223
False)
1224
1225
def _get_all_dbus_things(self, thing):
1226
"""Returns a generator of (name, attribute) pairs
1227
"""
1228
return ((getattr(athing.__get__(self), "_dbus_name", name),
1229
athing.__get__(self))
1230
for cls in self.__class__.__mro__
1231
for name, athing in
1232
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1233
1234
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1235
out_signature="s",
1236
path_keyword='object_path',
1237
connection_keyword='connection')
1238
def Introspect(self, object_path, connection):
1239
"""Overloading of standard D-Bus method.
1240
1241
Inserts annotation tags on methods and signals.
1242
"""
1243
xmlstring = dbus.service.Object.Introspect(self, object_path,
1244
connection)
1245
try:
1246
document = xml.dom.minidom.parseString(xmlstring)
1247
1248
for if_tag in document.getElementsByTagName("interface"):
1249
# Add annotation tags
1250
for typ in ("method", "signal"):
1251
for tag in if_tag.getElementsByTagName(typ):
1252
annots = dict()
1253
for name, prop in (self.
1254
_get_all_dbus_things(typ)):
1255
if (name == tag.getAttribute("name")
1256
and prop._dbus_interface
1257
== if_tag.getAttribute("name")):
1258
annots.update(getattr(
1259
prop, "_dbus_annotations", {}))
1260
for name, value in annots.items():
1261
ann_tag = document.createElement(
1262
"annotation")
1263
ann_tag.setAttribute("name", name)
1264
ann_tag.setAttribute("value", value)
1265
tag.appendChild(ann_tag)
1266
# Add interface annotation tags
1267
for annotation, value in dict(
1268
itertools.chain.from_iterable(
1269
annotations().items()
1270
for name, annotations
1271
in self._get_all_dbus_things("interface")
1272
if name == if_tag.getAttribute("name")
1273
)).items():
1274
ann_tag = document.createElement("annotation")
1275
ann_tag.setAttribute("name", annotation)
1276
ann_tag.setAttribute("value", value)
1277
if_tag.appendChild(ann_tag)
1278
# Fix argument name for the Introspect method itself
1279
if (if_tag.getAttribute("name")
1280
== dbus.INTROSPECTABLE_IFACE):
1281
for cn in if_tag.getElementsByTagName("method"):
1282
if cn.getAttribute("name") == "Introspect":
1283
for arg in cn.getElementsByTagName("arg"):
1284
if (arg.getAttribute("direction")
1285
== "out"):
1286
arg.setAttribute("name",
1287
"xml_data")
1288
xmlstring = document.toxml("utf-8")
1289
document.unlink()
1290
except (AttributeError, xml.dom.DOMException,
1291
xml.parsers.expat.ExpatError) as error:
1292
logger.error("Failed to override Introspection method",
1293
exc_info=error)
1294
return xmlstring
1295
1296
1297
class DBusObjectWithProperties(DBusObjectWithAnnotations):
559
class DBusObjectWithProperties(dbus.service.Object):
1298
560
"""A D-Bus object with properties.
1299
561
1300
562
Classes inheriting from this can use the dbus_service_property
1301
563
decorator to expose methods as D-Bus properties. It exposes the
1302
564
standard Get(), Set(), and GetAll() methods on the D-Bus.
1303
565
"""
1304
566
567
@staticmethod
568
def _is_dbus_property(obj):
569
return getattr(obj, u"_dbus_is_property", False)
570
571
def _get_all_dbus_properties(self):
572
"""Returns a generator of (name, attribute) pairs
573
"""
574
return ((prop._dbus_name, prop)
575
for name, prop in
576
inspect.getmembers(self, self._is_dbus_property))
577
1305
578
def _get_dbus_property(self, interface_name, property_name):
1306
579
"""Returns a bound method if one exists which is a D-Bus
1307
580
property with the specified name and interface.
1308
581
"""
1309
for cls in self.__class__.__mro__:
1310
for name, value in inspect.getmembers(
1311
cls, self._is_dbus_thing("property")):
1312
if (value._dbus_name == property_name
1313
and value._dbus_interface == interface_name):
1314
return value.__get__(self)
1315
582
for name in (property_name,
583
property_name + u"_dbus_property"):
584
prop = getattr(self, name, None)
585
if (prop is None
586
or not self._is_dbus_property(prop)
587
or prop._dbus_name != property_name
588
or (interface_name and prop._dbus_interface
589
and interface_name != prop._dbus_interface)):
590
continue
591
return prop
1316
592
# No such property
1317
raise DBusPropertyNotFound("{}:{}.{}".format(
1318
self.dbus_object_path, interface_name, property_name))
1319
1320
@classmethod
1321
def _get_all_interface_names(cls):
1322
"""Get a sequence of all interfaces supported by an object"""
1323
return (name for name in set(getattr(getattr(x, attr),
1324
"_dbus_interface", None)
1325
for x in (inspect.getmro(cls))
1326
for attr in dir(x))
1327
if name is not None)
1328
1329
@dbus.service.method(dbus.PROPERTIES_IFACE,
1330
in_signature="ss",
1331
out_signature="v")
593
raise DBusPropertyNotFound(self.dbus_object_path + u":"
594
+ interface_name + u"."
595
+ property_name)
596
597
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
598
out_signature=u"v")
1332
599
def Get(self, interface_name, property_name):
1333
600
"""Standard D-Bus property Get() method, see D-Bus standard.
1334
601
"""
1335
602
prop = self._get_dbus_property(interface_name, property_name)
1336
if prop._dbus_access == "write":
603
if prop._dbus_access == u"write":
1337
604
raise DBusPropertyAccessException(property_name)
1338
605
value = prop()
1339
if not hasattr(value, "variant_level"):
606
if not hasattr(value, u"variant_level"):
1340
607
return value
1341
608
return type(value)(value, variant_level=value.variant_level+1)
1342
1343
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
609
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
1344
611
def Set(self, interface_name, property_name, value):
1345
612
"""Standard D-Bus property Set() method, see D-Bus standard.
1346
613
"""
1347
614
prop = self._get_dbus_property(interface_name, property_name)
1348
if prop._dbus_access == "read":
615
if prop._dbus_access == u"read":
1349
616
raise DBusPropertyAccessException(property_name)
1350
if prop._dbus_get_args_options["byte_arrays"]:
617
if prop._dbus_get_args_options[u"byte_arrays"]:
1351
618
# The byte_arrays option is not supported yet on
1352
619
# signatures other than "ay".
1353
if prop._dbus_signature != "ay":
1354
raise ValueError("Byte arrays not supported for non-"
1355
"'ay' signature {!r}"
1356
.format(prop._dbus_signature))
1357
value = dbus.ByteArray(b''.join(chr(byte)
1358
for byte in value))
620
if prop._dbus_signature != u"ay":
621
raise ValueError
622
value = dbus.ByteArray(''.join(unichr(byte)
623
for byte in value))
1359
624
prop(value)
1360
1361
@dbus.service.method(dbus.PROPERTIES_IFACE,
1362
in_signature="s",
1363
out_signature="a{sv}")
625
626
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
627
out_signature=u"a{sv}")
1364
628
def GetAll(self, interface_name):
1365
629
"""Standard D-Bus property GetAll() method, see D-Bus
1366
630
standard.
1367
631
1368
632
Note: Will not include properties with access="write".
1369
633
"""
1370
properties = {}
1371
for name, prop in self._get_all_dbus_things("property"):
634
all = {}
635
for name, prop in self._get_all_dbus_properties():
1372
636
if (interface_name
1373
637
and interface_name != prop._dbus_interface):
1374
638
# Interface non-empty but did not match
1375
639
continue
1376
640
# Ignore write-only properties
1377
if prop._dbus_access == "write":
641
if prop._dbus_access == u"write":
1378
642
continue
1379
643
value = prop()
1380
if not hasattr(value, "variant_level"):
1381
properties[name] = value
644
if not hasattr(value, u"variant_level"):
645
all[name] = value
1382
646
continue
1383
properties[name] = type(value)(
1384
value, variant_level=value.variant_level + 1)
1385
return dbus.Dictionary(properties, signature="sv")
1386
1387
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1388
def PropertiesChanged(self, interface_name, changed_properties,
1389
invalidated_properties):
1390
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1391
standard.
1392
"""
1393
pass
1394
647
all[name] = type(value)(value, variant_level=
648
value.variant_level+1)
649
return dbus.Dictionary(all, signature=u"sv")
650
1395
651
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1396
out_signature="s",
652
out_signature=u"s",
1397
653
path_keyword='object_path',
1398
654
connection_keyword='connection')
1399
655
def Introspect(self, object_path, connection):
1400
"""Overloading of standard D-Bus method.
1401
1402
Inserts property tags and interface annotation tags.
656
"""Standard D-Bus method, overloaded to insert property tags.
1403
657
"""
1404
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1405
object_path,
1406
connection)
658
xmlstring = dbus.service.Object.Introspect(self, object_path,
659
connection)
1407
660
try:
1408
661
document = xml.dom.minidom.parseString(xmlstring)
1409
1410
662
def make_tag(document, name, prop):
1411
e = document.createElement("property")
1412
e.setAttribute("name", name)
1413
e.setAttribute("type", prop._dbus_signature)
1414
e.setAttribute("access", prop._dbus_access)
663
e = document.createElement(u"property")
664
e.setAttribute(u"name", name)
665
e.setAttribute(u"type", prop._dbus_signature)
666
e.setAttribute(u"access", prop._dbus_access)
1415
667
return e
1416
1417
for if_tag in document.getElementsByTagName("interface"):
1418
# Add property tags
668
for if_tag in document.getElementsByTagName(u"interface"):
1419
669
for tag in (make_tag(document, name, prop)
1420
670
for name, prop
1421
in self._get_all_dbus_things("property")
671
in self._get_all_dbus_properties()
1422
672
if prop._dbus_interface
1423
== if_tag.getAttribute("name")):
673
== if_tag.getAttribute(u"name")):
1424
674
if_tag.appendChild(tag)
1425
# Add annotation tags for properties
1426
for tag in if_tag.getElementsByTagName("property"):
1427
annots = dict()
1428
for name, prop in self._get_all_dbus_things(
1429
"property"):
1430
if (name == tag.getAttribute("name")
1431
and prop._dbus_interface
1432
== if_tag.getAttribute("name")):
1433
annots.update(getattr(
1434
prop, "_dbus_annotations", {}))
1435
for name, value in annots.items():
1436
ann_tag = document.createElement(
1437
"annotation")
1438
ann_tag.setAttribute("name", name)
1439
ann_tag.setAttribute("value", value)
1440
tag.appendChild(ann_tag)
1441
675
# Add the names to the return values for the
1442
676
# "org.freedesktop.DBus.Properties" methods
1443
if (if_tag.getAttribute("name")
1444
== "org.freedesktop.DBus.Properties"):
1445
for cn in if_tag.getElementsByTagName("method"):
1446
if cn.getAttribute("name") == "Get":
1447
for arg in cn.getElementsByTagName("arg"):
1448
if (arg.getAttribute("direction")
1449
== "out"):
1450
arg.setAttribute("name", "value")
1451
elif cn.getAttribute("name") == "GetAll":
1452
for arg in cn.getElementsByTagName("arg"):
1453
if (arg.getAttribute("direction")
1454
== "out"):
1455
arg.setAttribute("name", "props")
1456
xmlstring = document.toxml("utf-8")
1457
document.unlink()
1458
except (AttributeError, xml.dom.DOMException,
1459
xml.parsers.expat.ExpatError) as error:
1460
logger.error("Failed to override Introspection method",
1461
exc_info=error)
1462
return xmlstring
1463
1464
try:
1465
dbus.OBJECT_MANAGER_IFACE
1466
except AttributeError:
1467
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1468
1469
1470
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1471
"""A D-Bus object with an ObjectManager.
1472
1473
Classes inheriting from this exposes the standard
1474
GetManagedObjects call and the InterfacesAdded and
1475
InterfacesRemoved signals on the standard
1476
"org.freedesktop.DBus.ObjectManager" interface.
1477
1478
Note: No signals are sent automatically; they must be sent
1479
manually.
1480
"""
1481
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1482
out_signature="a{oa{sa{sv}}}")
1483
def GetManagedObjects(self):
1484
"""This function must be overridden"""
1485
raise NotImplementedError()
1486
1487
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1488
signature="oa{sa{sv}}")
1489
def InterfacesAdded(self, object_path, interfaces_and_properties):
1490
pass
1491
1492
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1493
def InterfacesRemoved(self, object_path, interfaces):
1494
pass
1495
1496
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1497
out_signature="s",
1498
path_keyword='object_path',
1499
connection_keyword='connection')
1500
def Introspect(self, object_path, connection):
1501
"""Overloading of standard D-Bus method.
1502
1503
Override return argument name of GetManagedObjects to be
1504
"objpath_interfaces_and_properties"
1505
"""
1506
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1507
object_path,
1508
connection)
1509
try:
1510
document = xml.dom.minidom.parseString(xmlstring)
1511
1512
for if_tag in document.getElementsByTagName("interface"):
1513
# Fix argument name for the GetManagedObjects method
1514
if (if_tag.getAttribute("name")
1515
== dbus.OBJECT_MANAGER_IFACE):
1516
for cn in if_tag.getElementsByTagName("method"):
1517
if (cn.getAttribute("name")
1518
== "GetManagedObjects"):
1519
for arg in cn.getElementsByTagName("arg"):
1520
if (arg.getAttribute("direction")
1521
== "out"):
1522
arg.setAttribute(
1523
"name",
1524
"objpath_interfaces"
1525
"_and_properties")
1526
xmlstring = document.toxml("utf-8")
1527
document.unlink()
1528
except (AttributeError, xml.dom.DOMException,
1529
xml.parsers.expat.ExpatError) as error:
1530
logger.error("Failed to override Introspection method",
1531
exc_info=error)
1532
return xmlstring
1533
1534
1535
def datetime_to_dbus(dt, variant_level=0):
1536
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1537
if dt is None:
1538
return dbus.String("", variant_level=variant_level)
1539
return dbus.String(dt.isoformat(), variant_level=variant_level)
1540
1541
1542
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1543
"""A class decorator; applied to a subclass of
1544
dbus.service.Object, it will add alternate D-Bus attributes with
1545
interface names according to the "alt_interface_names" mapping.
1546
Usage:
1547
1548
@alternate_dbus_interfaces({"org.example.Interface":
1549
"net.example.AlternateInterface"})
1550
class SampleDBusObject(dbus.service.Object):
1551
@dbus.service.method("org.example.Interface")
1552
def SampleDBusMethod():
1553
pass
1554
1555
The above "SampleDBusMethod" on "SampleDBusObject" will be
1556
reachable via two interfaces: "org.example.Interface" and
1557
"net.example.AlternateInterface", the latter of which will have
1558
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1559
"true", unless "deprecate" is passed with a False value.
1560
1561
This works for methods and signals, and also for D-Bus properties
1562
(from DBusObjectWithProperties) and interfaces (from the
1563
dbus_interface_annotations decorator).
1564
"""
1565
1566
def wrapper(cls):
1567
for orig_interface_name, alt_interface_name in (
1568
alt_interface_names.items()):
1569
attr = {}
1570
interface_names = set()
1571
# Go though all attributes of the class
1572
for attrname, attribute in inspect.getmembers(cls):
1573
# Ignore non-D-Bus attributes, and D-Bus attributes
1574
# with the wrong interface name
1575
if (not hasattr(attribute, "_dbus_interface")
1576
or not attribute._dbus_interface.startswith(
1577
orig_interface_name)):
1578
continue
1579
# Create an alternate D-Bus interface name based on
1580
# the current name
1581
alt_interface = attribute._dbus_interface.replace(
1582
orig_interface_name, alt_interface_name)
1583
interface_names.add(alt_interface)
1584
# Is this a D-Bus signal?
1585
if getattr(attribute, "_dbus_is_signal", False):
1586
# Extract the original non-method undecorated
1587
# function by black magic
1588
if sys.version_info.major == 2:
1589
nonmethod_func = (dict(
1590
zip(attribute.func_code.co_freevars,
1591
attribute.__closure__))
1592
["func"].cell_contents)
1593
else:
1594
nonmethod_func = (dict(
1595
zip(attribute.__code__.co_freevars,
1596
attribute.__closure__))
1597
["func"].cell_contents)
1598
# Create a new, but exactly alike, function
1599
# object, and decorate it to be a new D-Bus signal
1600
# with the alternate D-Bus interface name
1601
new_function = copy_function(nonmethod_func)
1602
new_function = (dbus.service.signal(
1603
alt_interface,
1604
attribute._dbus_signature)(new_function))
1605
# Copy annotations, if any
1606
try:
1607
new_function._dbus_annotations = dict(
1608
attribute._dbus_annotations)
1609
except AttributeError:
1610
pass
1611
1612
# Define a creator of a function to call both the
1613
# original and alternate functions, so both the
1614
# original and alternate signals gets sent when
1615
# the function is called
1616
def fixscope(func1, func2):
1617
"""This function is a scope container to pass
1618
func1 and func2 to the "call_both" function
1619
outside of its arguments"""
1620
1621
@functools.wraps(func2)
1622
def call_both(*args, **kwargs):
1623
"""This function will emit two D-Bus
1624
signals by calling func1 and func2"""
1625
func1(*args, **kwargs)
1626
func2(*args, **kwargs)
1627
# Make wrapper function look like a D-Bus
1628
# signal
1629
for name, attr in inspect.getmembers(func2):
1630
if name.startswith("_dbus_"):
1631
setattr(call_both, name, attr)
1632
1633
return call_both
1634
# Create the "call_both" function and add it to
1635
# the class
1636
attr[attrname] = fixscope(attribute, new_function)
1637
# Is this a D-Bus method?
1638
elif getattr(attribute, "_dbus_is_method", False):
1639
# Create a new, but exactly alike, function
1640
# object. Decorate it to be a new D-Bus method
1641
# with the alternate D-Bus interface name. Add it
1642
# to the class.
1643
attr[attrname] = (
1644
dbus.service.method(
1645
alt_interface,
1646
attribute._dbus_in_signature,
1647
attribute._dbus_out_signature)
1648
(copy_function(attribute)))
1649
# Copy annotations, if any
1650
try:
1651
attr[attrname]._dbus_annotations = dict(
1652
attribute._dbus_annotations)
1653
except AttributeError:
1654
pass
1655
# Is this a D-Bus property?
1656
elif getattr(attribute, "_dbus_is_property", False):
1657
# Create a new, but exactly alike, function
1658
# object, and decorate it to be a new D-Bus
1659
# property with the alternate D-Bus interface
1660
# name. Add it to the class.
1661
attr[attrname] = (dbus_service_property(
1662
alt_interface, attribute._dbus_signature,
1663
attribute._dbus_access,
1664
attribute._dbus_get_args_options
1665
["byte_arrays"])
1666
(copy_function(attribute)))
1667
# Copy annotations, if any
1668
try:
1669
attr[attrname]._dbus_annotations = dict(
1670
attribute._dbus_annotations)
1671
except AttributeError:
1672
pass
1673
# Is this a D-Bus interface?
1674
elif getattr(attribute, "_dbus_is_interface", False):
1675
# Create a new, but exactly alike, function
1676
# object. Decorate it to be a new D-Bus interface
1677
# with the alternate D-Bus interface name. Add it
1678
# to the class.
1679
attr[attrname] = (
1680
dbus_interface_annotations(alt_interface)
1681
(copy_function(attribute)))
1682
if deprecate:
1683
# Deprecate all alternate interfaces
1684
iname = "_AlternateDBusNames_interface_annotation{}"
1685
for interface_name in interface_names:
1686
1687
@dbus_interface_annotations(interface_name)
1688
def func(self):
1689
return {"org.freedesktop.DBus.Deprecated":
1690
"true"}
1691
# Find an unused name
1692
for aname in (iname.format(i)
1693
for i in itertools.count()):
1694
if aname not in attr:
1695
attr[aname] = func
1696
break
1697
if interface_names:
1698
# Replace the class with a new subclass of it with
1699
# methods, signals, etc. as created above.
1700
if sys.version_info.major == 2:
1701
cls = type(b"{}Alternate".format(cls.__name__),
1702
(cls, ), attr)
1703
else:
1704
cls = type("{}Alternate".format(cls.__name__),
1705
(cls, ), attr)
1706
return cls
1707
1708
return wrapper
1709
1710
1711
@alternate_dbus_interfaces({"se.recompile.Mandos":
1712
"se.bsnet.fukt.Mandos"})
677
if (if_tag.getAttribute(u"name")
678
== u"org.freedesktop.DBus.Properties"):
679
for cn in if_tag.getElementsByTagName(u"method"):
680
if cn.getAttribute(u"name") == u"Get":
681
for arg in cn.getElementsByTagName(u"arg"):
682
if (arg.getAttribute(u"direction")
683
== u"out"):
684
arg.setAttribute(u"name", u"value")
685
elif cn.getAttribute(u"name") == u"GetAll":
686
for arg in cn.getElementsByTagName(u"arg"):
687
if (arg.getAttribute(u"direction")
688
== u"out"):
689
arg.setAttribute(u"name", u"props")
690
xmlstring = document.toxml(u"utf-8")
691
document.unlink()
692
except (AttributeError, xml.dom.DOMException,
693
xml.parsers.expat.ExpatError), error:
694
logger.error(u"Failed to override Introspection method",
695
error)
696
return xmlstring
697
698
1713
699
class ClientDBus(Client, DBusObjectWithProperties):
1714
700
"""A Client class using D-Bus
1715
701
1716
702
Attributes:
1717
703
dbus_object_path: dbus.ObjectPath
1718
704
bus: dbus.SystemBus()
1719
705
"""
1720
1721
runtime_expansions = (Client.runtime_expansions
1722
+ ("dbus_object_path", ))
1723
1724
_interface = "se.recompile.Mandos.Client"
1725
1726
706
# dbus.service.Object doesn't use super(), so we can't either.
1727
1728
def __init__(self, bus=None, *args, **kwargs):
707
708
def __init__(self, bus = None, *args, **kwargs):
709
self._approvals_pending = 0
1729
710
self.bus = bus
1730
711
Client.__init__(self, *args, **kwargs)
1731
712
# Only now, when this client is initialized, can it show up on
1732
713
# the D-Bus
1733
client_object_name = str(self.name).translate(
1734
{ord("."): ord("_"),
1735
ord("-"): ord("_")})
1736
self.dbus_object_path = dbus.ObjectPath(
1737
"/clients/" + client_object_name)
714
self.dbus_object_path = (dbus.ObjectPath
715
(u"/clients/"
716
+ self.name.replace(u".", u"_")))
1738
717
DBusObjectWithProperties.__init__(self, self.bus,
1739
718
self.dbus_object_path)
1740
1741
def notifychangeproperty(transform_func, dbus_name,
1742
type_func=lambda x: x,
1743
variant_level=1,
1744
invalidate_only=False,
1745
_interface=_interface):
1746
""" Modify a variable so that it's a property which announces
1747
its changes to DBus.
1748
1749
transform_fun: Function that takes a value and a variant_level
1750
and transforms it to a D-Bus type.
1751
dbus_name: D-Bus name of the variable
1752
type_func: Function that transform the value before sending it
1753
to the D-Bus. Default: no transform
1754
variant_level: D-Bus variant level. Default: 1
1755
"""
1756
attrname = "_{}".format(dbus_name)
1757
1758
def setter(self, value):
1759
if hasattr(self, "dbus_object_path"):
1760
if (not hasattr(self, attrname) or
1761
type_func(getattr(self, attrname, None))
1762
!= type_func(value)):
1763
if invalidate_only:
1764
self.PropertiesChanged(
1765
_interface, dbus.Dictionary(),
1766
dbus.Array((dbus_name, )))
1767
else:
1768
dbus_value = transform_func(
1769
type_func(value),
1770
variant_level=variant_level)
1771
self.PropertyChanged(dbus.String(dbus_name),
1772
dbus_value)
1773
self.PropertiesChanged(
1774
_interface,
1775
dbus.Dictionary({dbus.String(dbus_name):
1776
dbus_value}),
1777
dbus.Array())
1778
setattr(self, attrname, value)
1779
1780
return property(lambda self: getattr(self, attrname), setter)
1781
1782
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1783
approvals_pending = notifychangeproperty(dbus.Boolean,
1784
"ApprovalPending",
1785
type_func=bool)
1786
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1787
last_enabled = notifychangeproperty(datetime_to_dbus,
1788
"LastEnabled")
1789
checker = notifychangeproperty(
1790
dbus.Boolean, "CheckerRunning",
1791
type_func=lambda checker: checker is not None)
1792
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1793
"LastCheckedOK")
1794
last_checker_status = notifychangeproperty(dbus.Int16,
1795
"LastCheckerStatus")
1796
last_approval_request = notifychangeproperty(
1797
datetime_to_dbus, "LastApprovalRequest")
1798
approved_by_default = notifychangeproperty(dbus.Boolean,
1799
"ApprovedByDefault")
1800
approval_delay = notifychangeproperty(
1801
dbus.UInt64, "ApprovalDelay",
1802
type_func=lambda td: td.total_seconds() * 1000)
1803
approval_duration = notifychangeproperty(
1804
dbus.UInt64, "ApprovalDuration",
1805
type_func=lambda td: td.total_seconds() * 1000)
1806
host = notifychangeproperty(dbus.String, "Host")
1807
timeout = notifychangeproperty(
1808
dbus.UInt64, "Timeout",
1809
type_func=lambda td: td.total_seconds() * 1000)
1810
extended_timeout = notifychangeproperty(
1811
dbus.UInt64, "ExtendedTimeout",
1812
type_func=lambda td: td.total_seconds() * 1000)
1813
interval = notifychangeproperty(
1814
dbus.UInt64, "Interval",
1815
type_func=lambda td: td.total_seconds() * 1000)
1816
checker_command = notifychangeproperty(dbus.String, "Checker")
1817
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1818
invalidate_only=True)
1819
1820
del notifychangeproperty
1821
719
720
def _get_approvals_pending(self):
721
return self._approvals_pending
722
def _set_approvals_pending(self, value):
723
old_value = self._approvals_pending
724
self._approvals_pending = value
725
bval = bool(value)
726
if (hasattr(self, "dbus_object_path")
727
and bval is not bool(old_value)):
728
dbus_bool = dbus.Boolean(bval, variant_level=1)
729
self.PropertyChanged(dbus.String(u"ApprovalPending"),
730
dbus_bool)
731
732
approvals_pending = property(_get_approvals_pending,
733
_set_approvals_pending)
734
del _get_approvals_pending, _set_approvals_pending
735
736
@staticmethod
737
def _datetime_to_dbus(dt, variant_level=0):
738
"""Convert a UTC datetime.datetime() to a D-Bus type."""
739
return dbus.String(dt.isoformat(),
740
variant_level=variant_level)
741
742
def enable(self):
743
oldstate = getattr(self, u"enabled", False)
744
r = Client.enable(self)
745
if oldstate != self.enabled:
746
# Emit D-Bus signals
747
self.PropertyChanged(dbus.String(u"Enabled"),
748
dbus.Boolean(True, variant_level=1))
749
self.PropertyChanged(
750
dbus.String(u"LastEnabled"),
751
self._datetime_to_dbus(self.last_enabled,
752
variant_level=1))
753
return r
754
755
def disable(self, quiet = False):
756
oldstate = getattr(self, u"enabled", False)
757
r = Client.disable(self, quiet=quiet)
758
if not quiet and oldstate != self.enabled:
759
# Emit D-Bus signal
760
self.PropertyChanged(dbus.String(u"Enabled"),
761
dbus.Boolean(False, variant_level=1))
762
return r
763
1822
764
def __del__(self, *args, **kwargs):
1823
765
try:
1824
766
self.remove_from_connection()
1825
767
except LookupError:
1826
768
pass
1827
if hasattr(DBusObjectWithProperties, "__del__"):
769
if hasattr(DBusObjectWithProperties, u"__del__"):
1828
770
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1829
771
Client.__del__(self, *args, **kwargs)
1830
1831
def checker_callback(self, source, condition,
1832
connection, command, *args, **kwargs):
1833
ret = Client.checker_callback(self, source, condition,
1834
connection, command, *args,
1835
**kwargs)
1836
exitstatus = self.last_checker_status
1837
if exitstatus >= 0:
772
773
def checker_callback(self, pid, condition, command,
774
*args, **kwargs):
775
self.checker_callback_tag = None
776
self.checker = None
777
# Emit D-Bus signal
778
self.PropertyChanged(dbus.String(u"CheckerRunning"),
779
dbus.Boolean(False, variant_level=1))
780
if os.WIFEXITED(condition):
781
exitstatus = os.WEXITSTATUS(condition)
1838
782
# Emit D-Bus signal
1839
783
self.CheckerCompleted(dbus.Int16(exitstatus),
1840
# This is specific to GNU libC
1841
dbus.Int64(exitstatus << 8),
784
dbus.Int64(condition),
1842
785
dbus.String(command))
1843
786
else:
1844
787
# Emit D-Bus signal
1845
788
self.CheckerCompleted(dbus.Int16(-1),
1846
dbus.Int64(
1847
# This is specific to GNU libC
1848
(exitstatus << 8)
1849
| self.last_checker_signal),
789
dbus.Int64(condition),
1850
790
dbus.String(command))
1851
return ret
1852
791
792
return Client.checker_callback(self, pid, condition, command,
793
*args, **kwargs)
794
795
def checked_ok(self, *args, **kwargs):
796
r = Client.checked_ok(self, *args, **kwargs)
797
# Emit D-Bus signal
798
self.PropertyChanged(
799
dbus.String(u"LastCheckedOK"),
800
(self._datetime_to_dbus(self.last_checked_ok,
801
variant_level=1)))
802
return r
803
1853
804
def start_checker(self, *args, **kwargs):
1854
old_checker_pid = getattr(self.checker, "pid", None)
805
old_checker = self.checker
806
if self.checker is not None:
807
old_checker_pid = self.checker.pid
808
else:
809
old_checker_pid = None
1855
810
r = Client.start_checker(self, *args, **kwargs)
1856
811
# Only if new checker process was started
1857
812
if (self.checker is not None
1858
813
and old_checker_pid != self.checker.pid):
1859
814
# Emit D-Bus signal
1860
815
self.CheckerStarted(self.current_checker_command)
816
self.PropertyChanged(
817
dbus.String(u"CheckerRunning"),
818
dbus.Boolean(True, variant_level=1))
819
return r
820
821
def stop_checker(self, *args, **kwargs):
822
old_checker = getattr(self, u"checker", None)
823
r = Client.stop_checker(self, *args, **kwargs)
824
if (old_checker is not None
825
and getattr(self, u"checker", None) is None):
826
self.PropertyChanged(dbus.String(u"CheckerRunning"),
827
dbus.Boolean(False, variant_level=1))
1861
828
return r
1862
829
1863
830
def _reset_approved(self):
1864
self.approved = None
831
self._approved = None
1865
832
return False
1866
833
1867
834
def approve(self, value=True):
1868
self.approved = value
1869
GLib.timeout_add(int(self.approval_duration.total_seconds()
1870
* 1000), self._reset_approved)
1871
835
self.send_changedstate()
1872
1873
# D-Bus methods, signals & properties
1874
1875
# Interfaces
1876
1877
# Signals
1878
836
self._approved = value
837
gobject.timeout_add(self._timedelta_to_milliseconds
838
(self.approval_duration),
839
self._reset_approved)
840
841
842
## D-Bus methods, signals & properties
843
_interface = u"se.bsnet.fukt.Mandos.Client"
844
845
## Signals
846
1879
847
# CheckerCompleted - signal
1880
@dbus.service.signal(_interface, signature="nxs")
848
@dbus.service.signal(_interface, signature=u"nxs")
1881
849
def CheckerCompleted(self, exitcode, waitstatus, command):
1882
850
"D-Bus signal"
1883
851
pass
1884
852
1885
853
# CheckerStarted - signal
1886
@dbus.service.signal(_interface, signature="s")
854
@dbus.service.signal(_interface, signature=u"s")
1887
855
def CheckerStarted(self, command):
1888
856
"D-Bus signal"
1889
857
pass
1890
858
1891
859
# PropertyChanged - signal
1892
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1893
@dbus.service.signal(_interface, signature="sv")
860
@dbus.service.signal(_interface, signature=u"sv")
1894
861
def PropertyChanged(self, property, value):
1895
862
"D-Bus signal"
1896
863
pass
1897
864
1898
865
# GotSecret - signal
1899
866
@dbus.service.signal(_interface)
1900
867
def GotSecret(self):
1903
870
server to mandos-client
1904
871
"""
1905
872
pass
1906
873
1907
874
# Rejected - signal
1908
@dbus.service.signal(_interface, signature="s")
875
@dbus.service.signal(_interface, signature=u"s")
1909
876
def Rejected(self, reason):
1910
877
"D-Bus signal"
1911
878
pass
1912
879
1913
880
# NeedApproval - signal
1914
@dbus.service.signal(_interface, signature="tb")
881
@dbus.service.signal(_interface, signature=u"tb")
1915
882
def NeedApproval(self, timeout, default):
1916
883
"D-Bus signal"
1917
return self.need_approval()
1918
1919
# Methods
884
pass
885
886
## Methods
1920
887
1921
888
# Approve - method
1922
@dbus.service.method(_interface, in_signature="b")
889
@dbus.service.method(_interface, in_signature=u"b")
1923
890
def Approve(self, value):
1924
891
self.approve(value)
1925
892
1926
893
# CheckedOK - method
1927
894
@dbus.service.method(_interface)
1928
895
def CheckedOK(self):
1929
self.checked_ok()
1930
896
return self.checked_ok()
897
1931
898
# Enable - method
1932
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1933
899
@dbus.service.method(_interface)
1934
900
def Enable(self):
1935
901
"D-Bus method"
1936
902
self.enable()
1937
903
1938
904
# StartChecker - method
1939
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1940
905
@dbus.service.method(_interface)
1941
906
def StartChecker(self):
1942
907
"D-Bus method"
1943
908
self.start_checker()
1944
909
1945
910
# Disable - method
1946
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1947
911
@dbus.service.method(_interface)
1948
912
def Disable(self):
1949
913
"D-Bus method"
1950
914
self.disable()
1951
915
1952
916
# StopChecker - method
1953
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1954
917
@dbus.service.method(_interface)
1955
918
def StopChecker(self):
1956
919
self.stop_checker()
1957
1958
# Properties
1959
920
921
## Properties
922
1960
923
# ApprovalPending - property
1961
@dbus_service_property(_interface, signature="b", access="read")
924
@dbus_service_property(_interface, signature=u"b", access=u"read")
1962
925
def ApprovalPending_dbus_property(self):
1963
926
return dbus.Boolean(bool(self.approvals_pending))
1964
927
1965
928
# ApprovedByDefault - property
1966
@dbus_service_property(_interface,
1967
signature="b",
1968
access="readwrite")
929
@dbus_service_property(_interface, signature=u"b",
930
access=u"readwrite")
1969
931
def ApprovedByDefault_dbus_property(self, value=None):
1970
932
if value is None: # get
1971
933
return dbus.Boolean(self.approved_by_default)
1972
934
self.approved_by_default = bool(value)
1973
935
# Emit D-Bus signal
936
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
937
dbus.Boolean(value, variant_level=1))
938
1974
939
# ApprovalDelay - property
1975
@dbus_service_property(_interface,
1976
signature="t",
1977
access="readwrite")
940
@dbus_service_property(_interface, signature=u"t",
941
access=u"readwrite")
1978
942
def ApprovalDelay_dbus_property(self, value=None):
1979
943
if value is None: # get
1980
return dbus.UInt64(self.approval_delay.total_seconds()
1981
* 1000)
944
return dbus.UInt64(self.approval_delay_milliseconds())
1982
945
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1983
946
# Emit D-Bus signal
947
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
948
dbus.UInt64(value, variant_level=1))
949
1984
950
# ApprovalDuration - property
1985
@dbus_service_property(_interface,
1986
signature="t",
1987
access="readwrite")
951
@dbus_service_property(_interface, signature=u"t",
952
access=u"readwrite")
1988
953
def ApprovalDuration_dbus_property(self, value=None):
1989
954
if value is None: # get
1990
return dbus.UInt64(self.approval_duration.total_seconds()
1991
* 1000)
955
return dbus.UInt64(self._timedelta_to_milliseconds(
956
self.approval_duration))
1992
957
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1993
958
# Emit D-Bus signal
959
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
960
dbus.UInt64(value, variant_level=1))
961
1994
962
# Name - property
1995
@dbus_annotations(
1996
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1997
@dbus_service_property(_interface, signature="s", access="read")
963
@dbus_service_property(_interface, signature=u"s", access=u"read")
1998
964
def Name_dbus_property(self):
1999
965
return dbus.String(self.name)
2000
966
2001
967
# Fingerprint - property
2002
@dbus_annotations(
2003
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2004
@dbus_service_property(_interface, signature="s", access="read")
968
@dbus_service_property(_interface, signature=u"s", access=u"read")
2005
969
def Fingerprint_dbus_property(self):
2006
970
return dbus.String(self.fingerprint)
2007
971
2008
972
# Host - property
2009
@dbus_service_property(_interface,
2010
signature="s",
2011
access="readwrite")
973
@dbus_service_property(_interface, signature=u"s",
974
access=u"readwrite")
2012
975
def Host_dbus_property(self, value=None):
2013
976
if value is None: # get
2014
977
return dbus.String(self.host)
2015
self.host = str(value)
2016
978
self.host = value
979
# Emit D-Bus signal
980
self.PropertyChanged(dbus.String(u"Host"),
981
dbus.String(value, variant_level=1))
982
2017
983
# Created - property
2018
@dbus_annotations(
2019
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2020
@dbus_service_property(_interface, signature="s", access="read")
984
@dbus_service_property(_interface, signature=u"s", access=u"read")
2021
985
def Created_dbus_property(self):
2022
return datetime_to_dbus(self.created)
2023
986
return dbus.String(self._datetime_to_dbus(self.created))
987
2024
988
# LastEnabled - property
2025
@dbus_service_property(_interface, signature="s", access="read")
989
@dbus_service_property(_interface, signature=u"s", access=u"read")
2026
990
def LastEnabled_dbus_property(self):
2027
return datetime_to_dbus(self.last_enabled)
2028
991
if self.last_enabled is None:
992
return dbus.String(u"")
993
return dbus.String(self._datetime_to_dbus(self.last_enabled))
994
2029
995
# Enabled - property
2030
@dbus_service_property(_interface,
2031
signature="b",
2032
access="readwrite")
996
@dbus_service_property(_interface, signature=u"b",
997
access=u"readwrite")
2033
998
def Enabled_dbus_property(self, value=None):
2034
999
if value is None: # get
2035
1000
return dbus.Boolean(self.enabled)
2037
1002
self.enable()
2038
1003
else:
2039
1004
self.disable()
2040
1005
2041
1006
# LastCheckedOK - property
2042
@dbus_service_property(_interface,
2043
signature="s",
2044
access="readwrite")
1007
@dbus_service_property(_interface, signature=u"s",
1008
access=u"readwrite")
2045
1009
def LastCheckedOK_dbus_property(self, value=None):
2046
1010
if value is not None:
2047
1011
self.checked_ok()
2048
1012
return
2049
return datetime_to_dbus(self.last_checked_ok)
2050
2051
# LastCheckerStatus - property
2052
@dbus_service_property(_interface, signature="n", access="read")
2053
def LastCheckerStatus_dbus_property(self):
2054
return dbus.Int16(self.last_checker_status)
2055
2056
# Expires - property
2057
@dbus_service_property(_interface, signature="s", access="read")
2058
def Expires_dbus_property(self):
2059
return datetime_to_dbus(self.expires)
2060
2061
# LastApprovalRequest - property
2062
@dbus_service_property(_interface, signature="s", access="read")
2063
def LastApprovalRequest_dbus_property(self):
2064
return datetime_to_dbus(self.last_approval_request)
2065
1013
if self.last_checked_ok is None:
1014
return dbus.String(u"")
1015
return dbus.String(self._datetime_to_dbus(self
1016
.last_checked_ok))
1017
2066
1018
# Timeout - property
2067
@dbus_service_property(_interface,
2068
signature="t",
2069
access="readwrite")
1019
@dbus_service_property(_interface, signature=u"t",
1020
access=u"readwrite")
2070
1021
def Timeout_dbus_property(self, value=None):
2071
1022
if value is None: # get
2072
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2073
old_timeout = self.timeout
1023
return dbus.UInt64(self.timeout_milliseconds())
2074
1024
self.timeout = datetime.timedelta(0, 0, 0, value)
2075
# Reschedule disabling
2076
if self.enabled:
2077
now = datetime.datetime.utcnow()
2078
self.expires += self.timeout - old_timeout
2079
if self.expires <= now:
2080
# The timeout has passed
2081
self.disable()
2082
else:
2083
if (getattr(self, "disable_initiator_tag", None)
2084
is None):
2085
return
2086
GLib.source_remove(self.disable_initiator_tag)
2087
self.disable_initiator_tag = GLib.timeout_add(
2088
int((self.expires - now).total_seconds() * 1000),
2089
self.disable)
2090
2091
# ExtendedTimeout - property
2092
@dbus_service_property(_interface,
2093
signature="t",
2094
access="readwrite")
2095
def ExtendedTimeout_dbus_property(self, value=None):
2096
if value is None: # get
2097
return dbus.UInt64(self.extended_timeout.total_seconds()
2098
* 1000)
2099
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2100
1025
# Emit D-Bus signal
1026
self.PropertyChanged(dbus.String(u"Timeout"),
1027
dbus.UInt64(value, variant_level=1))
1028
if getattr(self, u"disable_initiator_tag", None) is None:
1029
return
1030
# Reschedule timeout
1031
gobject.source_remove(self.disable_initiator_tag)
1032
self.disable_initiator_tag = None
1033
time_to_die = (self.
1034
_timedelta_to_milliseconds((self
1035
.last_checked_ok
1036
+ self.timeout)
1037
- datetime.datetime
1038
.utcnow()))
1039
if time_to_die <= 0:
1040
# The timeout has passed
1041
self.disable()
1042
else:
1043
self.disable_initiator_tag = (gobject.timeout_add
1044
(time_to_die, self.disable))
1045
2101
1046
# Interval - property
2102
@dbus_service_property(_interface,
2103
signature="t",
2104
access="readwrite")
1047
@dbus_service_property(_interface, signature=u"t",
1048
access=u"readwrite")
2105
1049
def Interval_dbus_property(self, value=None):
2106
1050
if value is None: # get
2107
return dbus.UInt64(self.interval.total_seconds() * 1000)
1051
return dbus.UInt64(self.interval_milliseconds())
2108
1052
self.interval = datetime.timedelta(0, 0, 0, value)
2109
if getattr(self, "checker_initiator_tag", None) is None:
1053
# Emit D-Bus signal
1054
self.PropertyChanged(dbus.String(u"Interval"),
1055
dbus.UInt64(value, variant_level=1))
1056
if getattr(self, u"checker_initiator_tag", None) is None:
2110
1057
return
2111
if self.enabled:
2112
# Reschedule checker run
2113
GLib.source_remove(self.checker_initiator_tag)
2114
self.checker_initiator_tag = GLib.timeout_add(
2115
value, self.start_checker)
2116
self.start_checker() # Start one now, too
1058
# Reschedule checker run
1059
gobject.source_remove(self.checker_initiator_tag)
1060
self.checker_initiator_tag = (gobject.timeout_add
1061
(value, self.start_checker))
1062
self.start_checker() # Start one now, too
2117
1063
2118
1064
# Checker - property
2119
@dbus_service_property(_interface,
2120
signature="s",
2121
access="readwrite")
1065
@dbus_service_property(_interface, signature=u"s",
1066
access=u"readwrite")
2122
1067
def Checker_dbus_property(self, value=None):
2123
1068
if value is None: # get
2124
1069
return dbus.String(self.checker_command)
2125
self.checker_command = str(value)
2126
1070
self.checker_command = value
1071
# Emit D-Bus signal
1072
self.PropertyChanged(dbus.String(u"Checker"),
1073
dbus.String(self.checker_command,
1074
variant_level=1))
1075
2127
1076
# CheckerRunning - property
2128
@dbus_service_property(_interface,
2129
signature="b",
2130
access="readwrite")
1077
@dbus_service_property(_interface, signature=u"b",
1078
access=u"readwrite")
2131
1079
def CheckerRunning_dbus_property(self, value=None):
2132
1080
if value is None: # get
2133
1081
return dbus.Boolean(self.checker is not None)
2135
1083
self.start_checker()
2136
1084
else:
2137
1085
self.stop_checker()
2138
1086
2139
1087
# ObjectPath - property
2140
@dbus_annotations(
2141
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2142
"org.freedesktop.DBus.Deprecated": "true"})
2143
@dbus_service_property(_interface, signature="o", access="read")
1088
@dbus_service_property(_interface, signature=u"o", access=u"read")
2144
1089
def ObjectPath_dbus_property(self):
2145
return self.dbus_object_path # is already a dbus.ObjectPath
2146
1090
return self.dbus_object_path # is already a dbus.ObjectPath
1091
2147
1092
# Secret = property
2148
@dbus_annotations(
2149
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2150
"invalidates"})
2151
@dbus_service_property(_interface,
2152
signature="ay",
2153
access="write",
2154
byte_arrays=True)
1093
@dbus_service_property(_interface, signature=u"ay",
1094
access=u"write", byte_arrays=True)
2155
1095
def Secret_dbus_property(self, value):
2156
self.secret = bytes(value)
2157
1096
self.secret = str(value)
1097
2158
1098
del _interface
2159
1099
2160
1100
2163
1103
self._pipe = child_pipe
2164
1104
self._pipe.send(('init', fpr, address))
2165
1105
if not self._pipe.recv():
2166
raise KeyError(fpr)
1106
raise KeyError()
2167
1107
2168
1108
def __getattribute__(self, name):
2169
if name == '_pipe':
1109
if(name == '_pipe'):
2170
1110
return super(ProxyClient, self).__getattribute__(name)
2171
1111
self._pipe.send(('getattr', name))
2172
1112
data = self._pipe.recv()
2173
1113
if data[0] == 'data':
2174
1114
return data[1]
2175
1115
if data[0] == 'function':
2176
2177
1116
def func(*args, **kwargs):
2178
1117
self._pipe.send(('funcall', name, args, kwargs))
2179
1118
return self._pipe.recv()[1]
2180
2181
1119
return func
2182
1120
2183
1121
def __setattr__(self, name, value):
2184
if name == '_pipe':
1122
if(name == '_pipe'):
2185
1123
return super(ProxyClient, self).__setattr__(name, value)
2186
1124
self._pipe.send(('setattr', name, value))
2187
1125
2188
1126
2189
1127
class ClientHandler(socketserver.BaseRequestHandler, object):
2190
1128
"""A class to handle client connections.
2191
1129
2192
1130
Instantiated once for each connection to handle it.
2193
1131
Note: This will run in its own forked process."""
2194
1132
2195
1133
def handle(self):
2196
1134
with contextlib.closing(self.server.child_pipe) as child_pipe:
2197
logger.info("TCP connection from: %s",
2198
str(self.client_address))
2199
logger.debug("Pipe FD: %d",
1135
logger.info(u"TCP connection from: %s",
1136
unicode(self.client_address))
1137
logger.debug(u"Pipe FD: %d",
2200
1138
self.server.child_pipe.fileno())
2201
1139
2202
session = gnutls.ClientSession(self.request)
2203
2204
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2205
# "+AES-256-CBC", "+SHA1",
2206
# "+COMP-NULL", "+CTYPE-OPENPGP",
2207
# "+DHE-DSS"))
1140
session = (gnutls.connection
1141
.ClientSession(self.request,
1142
gnutls.connection
1143
.X509Credentials()))
1144
1145
# Note: gnutls.connection.X509Credentials is really a
1146
# generic GnuTLS certificate credentials object so long as
1147
# no X.509 keys are added to it. Therefore, we can use it
1148
# here despite using OpenPGP certificates.
1149
1150
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1151
# u"+AES-256-CBC", u"+SHA1",
1152
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1153
# u"+DHE-DSS"))
2208
1154
# Use a fallback default, since this MUST be set.
2209
1155
priority = self.server.gnutls_priority
2210
1156
if priority is None:
2211
priority = "NORMAL"
2212
gnutls.priority_set_direct(session._c_object,
2213
priority.encode("utf-8"),
2214
None)
1157
priority = u"NORMAL"
1158
(gnutls.library.functions
1159
.gnutls_priority_set_direct(session._c_object,
1160
priority, None))
2215
1161
2216
1162
# Start communication using the Mandos protocol
2217
1163
# Get protocol number
2218
1164
line = self.request.makefile().readline()
2219
logger.debug("Protocol version: %r", line)
1165
logger.debug(u"Protocol version: %r", line)
2220
1166
try:
2221
1167
if int(line.strip().split()[0]) > 1:
2222
raise RuntimeError(line)
2223
except (ValueError, IndexError, RuntimeError) as error:
2224
logger.error("Unknown protocol version: %s", error)
1168
raise RuntimeError
1169
except (ValueError, IndexError, RuntimeError), error:
1170
logger.error(u"Unknown protocol version: %s", error)
2225
1171
return
2226
1172
2227
1173
# Start GnuTLS connection
2228
1174
try:
2229
1175
session.handshake()
2230
except gnutls.Error as error:
2231
logger.warning("Handshake failed: %s", error)
1176
except gnutls.errors.GNUTLSError, error:
1177
logger.warning(u"Handshake failed: %s", error)
2232
1178
# Do not run session.bye() here: the session is not
2233
1179
# established. Just abandon the request.
2234
1180
return
2235
logger.debug("Handshake succeeded")
1181
logger.debug(u"Handshake succeeded")
2236
1182
2237
1183
approval_required = False
2238
1184
try:
2239
1185
try:
2240
fpr = self.fingerprint(
2241
self.peer_certificate(session))
2242
except (TypeError, gnutls.Error) as error:
2243
logger.warning("Bad certificate: %s", error)
1186
fpr = self.fingerprint(self.peer_certificate
1187
(session))
1188
except (TypeError, gnutls.errors.GNUTLSError), error:
1189
logger.warning(u"Bad certificate: %s", error)
2244
1190
return
2245
logger.debug("Fingerprint: %s", fpr)
1191
logger.debug(u"Fingerprint: %s", fpr)
2246
1192
2247
1193
try:
2248
1194
client = ProxyClient(child_pipe, fpr,
2249
1195
self.client_address)
2250
1196
except KeyError:
2251
1197
return
2252
1198
2253
1199
if client.approval_delay:
2254
1200
delay = client.approval_delay
2255
1201
client.approvals_pending += 1
2256
1202
approval_required = True
2257
1203
2258
1204
while True:
2259
1205
if not client.enabled:
2260
logger.info("Client %s is disabled",
2261
client.name)
1206
logger.warning(u"Client %s is disabled",
1207
client.name)
2262
1208
if self.server.use_dbus:
2263
1209
# Emit D-Bus signal
2264
client.Rejected("Disabled")
1210
client.Rejected("Disabled")
2265
1211
return
2266
2267
if client.approved or not client.approval_delay:
2268
# We are approved or approval is disabled
1212
1213
if client._approved or not client.approval_delay:
1214
#We are approved or approval is disabled
2269
1215
break
2270
elif client.approved is None:
2271
logger.info("Client %s needs approval",
1216
elif client._approved is None:
1217
logger.info(u"Client %s needs approval",
2272
1218
client.name)
2273
1219
if self.server.use_dbus:
2274
1220
# Emit D-Bus signal
2275
1221
client.NeedApproval(
2276
client.approval_delay.total_seconds()
2277
* 1000, client.approved_by_default)
1222
client.approval_delay_milliseconds(),
1223
client.approved_by_default)
2278
1224
else:
2279
logger.warning("Client %s was not approved",
1225
logger.warning(u"Client %s was not approved",
2280
1226
client.name)
2281
1227
if self.server.use_dbus:
2282
1228
# Emit D-Bus signal
2283
1229
client.Rejected("Denied")
2284
1230
return
2285
2286
# wait until timeout or approved
1231
1232
#wait until timeout or approved
1233
#x = float(client._timedelta_to_milliseconds(delay))
2287
1234
time = datetime.datetime.now()
2288
1235
client.changedstate.acquire()
2289
client.changedstate.wait(delay.total_seconds())
1236
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
2290
1237
client.changedstate.release()
2291
1238
time2 = datetime.datetime.now()
2292
1239
if (time2 - time) >= delay:
2296
1243
client.name)
2297
1244
if self.server.use_dbus:
2298
1245
# Emit D-Bus signal
2299
client.Rejected("Approval timed out")
1246
client.Rejected("Timed out")
2300
1247
return
2301
1248
else:
2302
1249
break
2303
1250
else:
2304
1251
delay -= time2 - time
2305
2306
try:
2307
session.send(client.secret)
2308
except gnutls.Error as error:
2309
logger.warning("gnutls send failed",
2310
exc_info=error)
2311
return
2312
2313
logger.info("Sending secret to %s", client.name)
2314
# bump the timeout using extended_timeout
2315
client.bump_timeout(client.extended_timeout)
1252
1253
sent_size = 0
1254
while sent_size < len(client.secret):
1255
try:
1256
sent = session.send(client.secret[sent_size:])
1257
except (gnutls.errors.GNUTLSError), error:
1258
logger.warning("gnutls send failed")
1259
return
1260
logger.debug(u"Sent: %d, remaining: %d",
1261
sent, len(client.secret)
1262
- (sent_size + sent))
1263
sent_size += sent
1264
1265
logger.info(u"Sending secret to %s", client.name)
1266
# bump the timeout as if seen
1267
client.checked_ok()
2316
1268
if self.server.use_dbus:
2317
1269
# Emit D-Bus signal
2318
1270
client.GotSecret()
2319
1271
2320
1272
finally:
2321
1273
if approval_required:
2322
1274
client.approvals_pending -= 1
2323
1275
try:
2324
1276
session.bye()
2325
except gnutls.Error as error:
2326
logger.warning("GnuTLS bye failed",
2327
exc_info=error)
2328
1277
except (gnutls.errors.GNUTLSError), error:
1278
logger.warning("GnuTLS bye failed")
1279
2329
1280
@staticmethod
2330
1281
def peer_certificate(session):
2331
1282
"Return the peer's OpenPGP certificate as a bytestring"
2332
1283
# If not an OpenPGP certificate...
2333
if (gnutls.certificate_type_get(session._c_object)
2334
!= gnutls.CRT_OPENPGP):
2335
# ...return invalid data
2336
return b""
1284
if (gnutls.library.functions
1285
.gnutls_certificate_type_get(session._c_object)
1286
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1287
# ...do the normal thing
1288
return session.peer_certificate
2337
1289
list_size = ctypes.c_uint(1)
2338
cert_list = (gnutls.certificate_get_peers
1290
cert_list = (gnutls.library.functions
1291
.gnutls_certificate_get_peers
2339
1292
(session._c_object, ctypes.byref(list_size)))
2340
1293
if not bool(cert_list) and list_size.value != 0:
2341
raise gnutls.Error("error getting peer certificate")
1294
raise gnutls.errors.GNUTLSError(u"error getting peer"
1295
u" certificate")
2342
1296
if list_size.value == 0:
2343
1297
return None
2344
1298
cert = cert_list[0]
2345
1299
return ctypes.string_at(cert.data, cert.size)
2346
1300
2347
1301
@staticmethod
2348
1302
def fingerprint(openpgp):
2349
1303
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2350
1304
# New GnuTLS "datum" with the OpenPGP public key
2351
datum = gnutls.datum_t(
2352
ctypes.cast(ctypes.c_char_p(openpgp),
2353
ctypes.POINTER(ctypes.c_ubyte)),
2354
ctypes.c_uint(len(openpgp)))
1305
datum = (gnutls.library.types
1306
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1307
ctypes.POINTER
1308
(ctypes.c_ubyte)),
1309
ctypes.c_uint(len(openpgp))))
2355
1310
# New empty GnuTLS certificate
2356
crt = gnutls.openpgp_crt_t()
2357
gnutls.openpgp_crt_init(ctypes.byref(crt))
1311
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1312
(gnutls.library.functions
1313
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2358
1314
# Import the OpenPGP public key into the certificate
2359
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2360
gnutls.OPENPGP_FMT_RAW)
1315
(gnutls.library.functions
1316
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1317
gnutls.library.constants
1318
.GNUTLS_OPENPGP_FMT_RAW))
2361
1319
# Verify the self signature in the key
2362
1320
crtverify = ctypes.c_uint()
2363
gnutls.openpgp_crt_verify_self(crt, 0,
2364
ctypes.byref(crtverify))
1321
(gnutls.library.functions
1322
.gnutls_openpgp_crt_verify_self(crt, 0,
1323
ctypes.byref(crtverify)))
2365
1324
if crtverify.value != 0:
2366
gnutls.openpgp_crt_deinit(crt)
2367
raise gnutls.CertificateSecurityError("Verify failed")
1325
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1326
raise (gnutls.errors.CertificateSecurityError
1327
(u"Verify failed"))
2368
1328
# New buffer for the fingerprint
2369
1329
buf = ctypes.create_string_buffer(20)
2370
1330
buf_len = ctypes.c_size_t()
2371
1331
# Get the fingerprint from the certificate into the buffer
2372
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2373
ctypes.byref(buf_len))
1332
(gnutls.library.functions
1333
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1334
ctypes.byref(buf_len)))
2374
1335
# Deinit the certificate
2375
gnutls.openpgp_crt_deinit(crt)
1336
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2376
1337
# Convert the buffer to a Python bytestring
2377
1338
fpr = ctypes.string_at(buf, buf_len.value)
2378
1339
# Convert the bytestring to hexadecimal notation
2379
hex_fpr = binascii.hexlify(fpr).upper()
1340
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
2380
1341
return hex_fpr
2381
1342
2382
1343
2383
1344
class MultiprocessingMixIn(object):
2384
1345
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2385
2386
1346
def sub_process_main(self, request, address):
2387
1347
try:
2388
1348
self.finish_request(request, address)
2389
except Exception:
1349
except:
2390
1350
self.handle_error(request, address)
2391
1351
self.close_request(request)
2392
1352
2393
1353
def process_request(self, request, address):
2394
1354
"""Start a new process to process the request."""
2395
proc = multiprocessing.Process(target=self.sub_process_main,
2396
args=(request, address))
2397
proc.start()
2398
return proc
2399
1355
multiprocessing.Process(target = self.sub_process_main,
1356
args = (request, address)).start()
2400
1357
2401
1358
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2402
1359
""" adds a pipe to the MixIn """
2403
2404
1360
def process_request(self, request, client_address):
2405
1361
"""Overrides and wraps the original process_request().
2406
1362
2407
1363
This function creates a new pipe in self.pipe
2408
1364
"""
2409
1365
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2410
1366
2411
proc = MultiprocessingMixIn.process_request(self, request,
2412
client_address)
1367
super(MultiprocessingMixInWithPipe,
1368
self).process_request(request, client_address)
2413
1369
self.child_pipe.close()
2414
self.add_pipe(parent_pipe, proc)
1370
self.add_pipe(parent_pipe)
2415
1371
2416
def add_pipe(self, parent_pipe, proc):
1372
def add_pipe(self, parent_pipe):
2417
1373
"""Dummy function; override as necessary"""
2418
raise NotImplementedError()
2419
1374
pass
2420
1375
2421
1376
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2422
1377
socketserver.TCPServer, object):
2423
1378
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2424
1379
2425
1380
Attributes:
2426
1381
enabled: Boolean; whether this server is activated yet
2427
1382
interface: None or a network interface name (string)
2428
1383
use_ipv6: Boolean; to use IPv6 or not
2429
1384
"""
2430
2431
1385
def __init__(self, server_address, RequestHandlerClass,
2432
interface=None,
2433
use_ipv6=True,
2434
socketfd=None):
2435
"""If socketfd is set, use that file descriptor instead of
2436
creating a new one with socket.socket().
2437
"""
1386
interface=None, use_ipv6=True):
2438
1387
self.interface = interface
2439
1388
if use_ipv6:
2440
1389
self.address_family = socket.AF_INET6
2441
if socketfd is not None:
2442
# Save the file descriptor
2443
self.socketfd = socketfd
2444
# Save the original socket.socket() function
2445
self.socket_socket = socket.socket
2446
2447
# To implement --socket, we monkey patch socket.socket.
2448
#
2449
# (When socketserver.TCPServer is a new-style class, we
2450
# could make self.socket into a property instead of monkey
2451
# patching socket.socket.)
2452
#
2453
# Create a one-time-only replacement for socket.socket()
2454
@functools.wraps(socket.socket)
2455
def socket_wrapper(*args, **kwargs):
2456
# Restore original function so subsequent calls are
2457
# not affected.
2458
socket.socket = self.socket_socket
2459
del self.socket_socket
2460
# This time only, return a new socket object from the
2461
# saved file descriptor.
2462
return socket.fromfd(self.socketfd, *args, **kwargs)
2463
# Replace socket.socket() function with wrapper
2464
socket.socket = socket_wrapper
2465
# The socketserver.TCPServer.__init__ will call
2466
# socket.socket(), which might be our replacement,
2467
# socket_wrapper(), if socketfd was set.
2468
1390
socketserver.TCPServer.__init__(self, server_address,
2469
1391
RequestHandlerClass)
2470
2471
1392
def server_bind(self):
2472
1393
"""This overrides the normal server_bind() function
2473
1394
to bind to an interface if one was specified, and also NOT to
2474
1395
bind to an address or port if they were not specified."""
2475
global SO_BINDTODEVICE
2476
1396
if self.interface is not None:
2477
1397
if SO_BINDTODEVICE is None:
2478
# Fall back to a hard-coded value which seems to be
2479
# common enough.
2480
logger.warning("SO_BINDTODEVICE not found, trying 25")
2481
SO_BINDTODEVICE = 25
2482
try:
2483
self.socket.setsockopt(
2484
socket.SOL_SOCKET, SO_BINDTODEVICE,
2485
(self.interface + "\0").encode("utf-8"))
2486
except socket.error as error:
2487
if error.errno == errno.EPERM:
2488
logger.error("No permission to bind to"
2489
" interface %s", self.interface)
2490
elif error.errno == errno.ENOPROTOOPT:
2491
logger.error("SO_BINDTODEVICE not available;"
2492
" cannot bind to interface %s",
2493
self.interface)
2494
elif error.errno == errno.ENODEV:
2495
logger.error("Interface %s does not exist,"
2496
" cannot bind", self.interface)
2497
else:
2498
raise
1398
logger.error(u"SO_BINDTODEVICE does not exist;"
1399
u" cannot bind to interface %s",
1400
self.interface)
1401
else:
1402
try:
1403
self.socket.setsockopt(socket.SOL_SOCKET,
1404
SO_BINDTODEVICE,
1405
str(self.interface
1406
+ u'\0'))
1407
except socket.error, error:
1408
if error[0] == errno.EPERM:
1409
logger.error(u"No permission to"
1410
u" bind to interface %s",
1411
self.interface)
1412
elif error[0] == errno.ENOPROTOOPT:
1413
logger.error(u"SO_BINDTODEVICE not available;"
1414
u" cannot bind to interface %s",
1415
self.interface)
1416
else:
1417
raise
2499
1418
# Only bind(2) the socket if we really need to.
2500
1419
if self.server_address[0] or self.server_address[1]:
2501
1420
if not self.server_address[0]:
2502
1421
if self.address_family == socket.AF_INET6:
2503
any_address = "::" # in6addr_any
1422
any_address = u"::" # in6addr_any
2504
1423
else:
2505
any_address = "0.0.0.0" # INADDR_ANY
1424
any_address = socket.INADDR_ANY
2506
1425
self.server_address = (any_address,
2507
1426
self.server_address[1])
2508
1427
elif not self.server_address[1]:
2509
self.server_address = (self.server_address[0], 0)
1428
self.server_address = (self.server_address[0],
1429
0)
2510
1430
# if self.interface:
2511
1431
# self.server_address = (self.server_address[0],
2512
1432
# 0, # port
2518
1438
2519
1439
class MandosServer(IPv6_TCPServer):
2520
1440
"""Mandos server.
2521
1441
2522
1442
Attributes:
2523
1443
clients: set of Client objects
2524
1444
gnutls_priority GnuTLS priority string
2525
1445
use_dbus: Boolean; to emit D-Bus signals or not
2526
2527
Assumes a GLib.MainLoop event loop.
1446
1447
Assumes a gobject.MainLoop event loop.
2528
1448
"""
2529
2530
1449
def __init__(self, server_address, RequestHandlerClass,
2531
interface=None,
2532
use_ipv6=True,
2533
clients=None,
2534
gnutls_priority=None,
2535
use_dbus=True,
2536
socketfd=None):
1450
interface=None, use_ipv6=True, clients=None,
1451
gnutls_priority=None, use_dbus=True):
2537
1452
self.enabled = False
2538
1453
self.clients = clients
2539
1454
if self.clients is None:
2540
self.clients = {}
1455
self.clients = set()
2541
1456
self.use_dbus = use_dbus
2542
1457
self.gnutls_priority = gnutls_priority
2543
1458
IPv6_TCPServer.__init__(self, server_address,
2544
1459
RequestHandlerClass,
2545
interface=interface,
2546
use_ipv6=use_ipv6,
2547
socketfd=socketfd)
2548
1460
interface = interface,
1461
use_ipv6 = use_ipv6)
2549
1462
def server_activate(self):
2550
1463
if self.enabled:
2551
1464
return socketserver.TCPServer.server_activate(self)
2552
2553
1465
def enable(self):
2554
1466
self.enabled = True
2555
2556
def add_pipe(self, parent_pipe, proc):
1467
def add_pipe(self, parent_pipe):
2557
1468
# Call "handle_ipc" for both data and EOF events
2558
GLib.io_add_watch(
2559
parent_pipe.fileno(),
2560
GLib.IO_IN | GLib.IO_HUP,
2561
functools.partial(self.handle_ipc,
2562
parent_pipe=parent_pipe,
2563
proc=proc))
2564
2565
def handle_ipc(self, source, condition,
2566
parent_pipe=None,
2567
proc=None,
1469
gobject.io_add_watch(parent_pipe.fileno(),
1470
gobject.IO_IN | gobject.IO_HUP,
1471
functools.partial(self.handle_ipc,
1472
parent_pipe = parent_pipe))
1473
1474
def handle_ipc(self, source, condition, parent_pipe=None,
2568
1475
client_object=None):
2569
# error, or the other end of multiprocessing.Pipe has closed
2570
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2571
# Wait for other process to exit
2572
proc.join()
1476
condition_names = {
1477
gobject.IO_IN: u"IN", # There is data to read.
1478
gobject.IO_OUT: u"OUT", # Data can be written (without
1479
# blocking).
1480
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1481
gobject.IO_ERR: u"ERR", # Error condition.
1482
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1483
# broken, usually for pipes and
1484
# sockets).
1485
}
1486
conditions_string = ' | '.join(name
1487
for cond, name in
1488
condition_names.iteritems()
1489
if cond & condition)
1490
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1491
conditions_string)
1492
1493
# error or the other end of multiprocessing.Pipe has closed
1494
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2573
1495
return False
2574
1496
2575
1497
# Read a request from the child
2576
1498
request = parent_pipe.recv()
1499
logger.debug(u"IPC request: %s", repr(request))
2577
1500
command = request[0]
2578
1501
2579
1502
if command == 'init':
2580
1503
fpr = request[1]
2581
1504
address = request[2]
2582
2583
for c in self.clients.values():
1505
1506
for c in self.clients:
2584
1507
if c.fingerprint == fpr:
2585
1508
client = c
2586
1509
break
2587
1510
else:
2588
logger.info("Client not found for fingerprint: %s, ad"
2589
"dress: %s", fpr, address)
1511
logger.warning(u"Client not found for fingerprint: %s, ad"
1512
u"dress: %s", fpr, address)
2590
1513
if self.use_dbus:
2591
1514
# Emit D-Bus signal
2592
mandos_dbus_service.ClientNotFound(fpr,
2593
address[0])
1515
mandos_dbus_service.ClientNotFound(fpr, address)
2594
1516
parent_pipe.send(False)
2595
1517
return False
2596
2597
GLib.io_add_watch(
2598
parent_pipe.fileno(),
2599
GLib.IO_IN | GLib.IO_HUP,
2600
functools.partial(self.handle_ipc,
2601
parent_pipe=parent_pipe,
2602
proc=proc,
2603
client_object=client))
1518
1519
gobject.io_add_watch(parent_pipe.fileno(),
1520
gobject.IO_IN | gobject.IO_HUP,
1521
functools.partial(self.handle_ipc,
1522
parent_pipe = parent_pipe,
1523
client_object = client))
2604
1524
parent_pipe.send(True)
2605
# remove the old hook in favor of the new above hook on
2606
# same fileno
1525
# remove the old hook in favor of the new above hook on same fileno
2607
1526
return False
2608
1527
if command == 'funcall':
2609
1528
funcname = request[1]
2610
1529
args = request[2]
2611
1530
kwargs = request[3]
2612
2613
parent_pipe.send(('data', getattr(client_object,
2614
funcname)(*args,
2615
**kwargs)))
1531
1532
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2616
1533
2617
1534
if command == 'getattr':
2618
1535
attrname = request[1]
2619
if isinstance(client_object.__getattribute__(attrname),
2620
collections.Callable):
2621
parent_pipe.send(('function', ))
1536
if callable(client_object.__getattribute__(attrname)):
1537
parent_pipe.send(('function',))
2622
1538
else:
2623
parent_pipe.send((
2624
'data', client_object.__getattribute__(attrname)))
2625
1539
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1540
2626
1541
if command == 'setattr':
2627
1542
attrname = request[1]
2628
1543
value = request[2]
2631
1546
return True
2632
1547
2633
1548
2634
def rfc3339_duration_to_delta(duration):
2635
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2636
2637
>>> rfc3339_duration_to_delta("P7D")
2638
datetime.timedelta(7)
2639
>>> rfc3339_duration_to_delta("PT60S")
2640
datetime.timedelta(0, 60)
2641
>>> rfc3339_duration_to_delta("PT60M")
2642
datetime.timedelta(0, 3600)
2643
>>> rfc3339_duration_to_delta("PT24H")
2644
datetime.timedelta(1)
2645
>>> rfc3339_duration_to_delta("P1W")
2646
datetime.timedelta(7)
2647
>>> rfc3339_duration_to_delta("PT5M30S")
2648
datetime.timedelta(0, 330)
2649
>>> rfc3339_duration_to_delta("P1DT3M20S")
2650
datetime.timedelta(1, 200)
2651
"""
2652
2653
# Parsing an RFC 3339 duration with regular expressions is not
2654
# possible - there would have to be multiple places for the same
2655
# values, like seconds. The current code, while more esoteric, is
2656
# cleaner without depending on a parsing library. If Python had a
2657
# built-in library for parsing we would use it, but we'd like to
2658
# avoid excessive use of external libraries.
2659
2660
# New type for defining tokens, syntax, and semantics all-in-one
2661
Token = collections.namedtuple("Token", (
2662
"regexp", # To match token; if "value" is not None, must have
2663
# a "group" containing digits
2664
"value", # datetime.timedelta or None
2665
"followers")) # Tokens valid after this token
2666
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2667
# the "duration" ABNF definition in RFC 3339, Appendix A.
2668
token_end = Token(re.compile(r"$"), None, frozenset())
2669
token_second = Token(re.compile(r"(\d+)S"),
2670
datetime.timedelta(seconds=1),
2671
frozenset((token_end, )))
2672
token_minute = Token(re.compile(r"(\d+)M"),
2673
datetime.timedelta(minutes=1),
2674
frozenset((token_second, token_end)))
2675
token_hour = Token(re.compile(r"(\d+)H"),
2676
datetime.timedelta(hours=1),
2677
frozenset((token_minute, token_end)))
2678
token_time = Token(re.compile(r"T"),
2679
None,
2680
frozenset((token_hour, token_minute,
2681
token_second)))
2682
token_day = Token(re.compile(r"(\d+)D"),
2683
datetime.timedelta(days=1),
2684
frozenset((token_time, token_end)))
2685
token_month = Token(re.compile(r"(\d+)M"),
2686
datetime.timedelta(weeks=4),
2687
frozenset((token_day, token_end)))
2688
token_year = Token(re.compile(r"(\d+)Y"),
2689
datetime.timedelta(weeks=52),
2690
frozenset((token_month, token_end)))
2691
token_week = Token(re.compile(r"(\d+)W"),
2692
datetime.timedelta(weeks=1),
2693
frozenset((token_end, )))
2694
token_duration = Token(re.compile(r"P"), None,
2695
frozenset((token_year, token_month,
2696
token_day, token_time,
2697
token_week)))
2698
# Define starting values:
2699
# Value so far
2700
value = datetime.timedelta()
2701
found_token = None
2702
# Following valid tokens
2703
followers = frozenset((token_duration, ))
2704
# String left to parse
2705
s = duration
2706
# Loop until end token is found
2707
while found_token is not token_end:
2708
# Search for any currently valid tokens
2709
for token in followers:
2710
match = token.regexp.match(s)
2711
if match is not None:
2712
# Token found
2713
if token.value is not None:
2714
# Value found, parse digits
2715
factor = int(match.group(1), 10)
2716
# Add to value so far
2717
value += factor * token.value
2718
# Strip token from string
2719
s = token.regexp.sub("", s, 1)
2720
# Go to found token
2721
found_token = token
2722
# Set valid next tokens
2723
followers = found_token.followers
2724
break
2725
else:
2726
# No currently valid tokens were found
2727
raise ValueError("Invalid RFC 3339 duration: {!r}"
2728
.format(duration))
2729
# End token found
2730
return value
2731
2732
2733
1549
def string_to_delta(interval):
2734
1550
"""Parse a string and return a datetime.timedelta
2735
2736
>>> string_to_delta('7d')
1551
1552
>>> string_to_delta(u'7d')
2737
1553
datetime.timedelta(7)
2738
>>> string_to_delta('60s')
1554
>>> string_to_delta(u'60s')
2739
1555
datetime.timedelta(0, 60)
2740
>>> string_to_delta('60m')
1556
>>> string_to_delta(u'60m')
2741
1557
datetime.timedelta(0, 3600)
2742
>>> string_to_delta('24h')
1558
>>> string_to_delta(u'24h')
2743
1559
datetime.timedelta(1)
2744
>>> string_to_delta('1w')
1560
>>> string_to_delta(u'1w')
2745
1561
datetime.timedelta(7)
2746
>>> string_to_delta('5m 30s')
1562
>>> string_to_delta(u'5m 30s')
2747
1563
datetime.timedelta(0, 330)
2748
1564
"""
2749
2750
try:
2751
return rfc3339_duration_to_delta(interval)
2752
except ValueError:
2753
pass
2754
2755
1565
timevalue = datetime.timedelta(0)
2756
1566
for s in interval.split():
2757
1567
try:
2758
suffix = s[-1]
1568
suffix = unicode(s[-1])
2759
1569
value = int(s[:-1])
2760
if suffix == "d":
1570
if suffix == u"d":
2761
1571
delta = datetime.timedelta(value)
2762
elif suffix == "s":
1572
elif suffix == u"s":
2763
1573
delta = datetime.timedelta(0, value)
2764
elif suffix == "m":
1574
elif suffix == u"m":
2765
1575
delta = datetime.timedelta(0, 0, 0, 0, value)
2766
elif suffix == "h":
1576
elif suffix == u"h":
2767
1577
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
2768
elif suffix == "w":
1578
elif suffix == u"w":
2769
1579
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2770
1580
else:
2771
raise ValueError("Unknown suffix {!r}".format(suffix))
2772
except IndexError as e:
2773
raise ValueError(*(e.args))
1581
raise ValueError(u"Unknown suffix %r" % suffix)
1582
except (ValueError, IndexError), e:
1583
raise ValueError(e.message)
2774
1584
timevalue += delta
2775
1585
return timevalue
2776
1586
2777
1587
2778
def daemon(nochdir=False, noclose=False):
1588
def if_nametoindex(interface):
1589
"""Call the C function if_nametoindex(), or equivalent
1590
1591
Note: This function cannot accept a unicode string."""
1592
global if_nametoindex
1593
try:
1594
if_nametoindex = (ctypes.cdll.LoadLibrary
1595
(ctypes.util.find_library(u"c"))
1596
.if_nametoindex)
1597
except (OSError, AttributeError):
1598
logger.warning(u"Doing if_nametoindex the hard way")
1599
def if_nametoindex(interface):
1600
"Get an interface index the hard way, i.e. using fcntl()"
1601
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1602
with contextlib.closing(socket.socket()) as s:
1603
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1604
struct.pack(str(u"16s16x"),
1605
interface))
1606
interface_index = struct.unpack(str(u"I"),
1607
ifreq[16:20])[0]
1608
return interface_index
1609
return if_nametoindex(interface)
1610
1611
1612
def daemon(nochdir = False, noclose = False):
2779
1613
"""See daemon(3). Standard BSD Unix function.
2780
1614
2781
1615
This should really exist as os.daemon, but it doesn't (yet)."""
2782
1616
if os.fork():
2783
1617
sys.exit()
2784
1618
os.setsid()
2785
1619
if not nochdir:
2786
os.chdir("/")
1620
os.chdir(u"/")
2787
1621
if os.fork():
2788
1622
sys.exit()
2789
1623
if not noclose:
2790
1624
# Close all standard open file descriptors
2791
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1625
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2792
1626
if not stat.S_ISCHR(os.fstat(null).st_mode):
2793
1627
raise OSError(errno.ENODEV,
2794
"{} not a character device"
2795
.format(os.devnull))
1628
u"%s not a character device"
1629
% os.path.devnull)
2796
1630
os.dup2(null, sys.stdin.fileno())
2797
1631
os.dup2(null, sys.stdout.fileno())
2798
1632
os.dup2(null, sys.stderr.fileno())
2801
1635
2802
1636
2803
1637
def main():
2804
1638
2805
1639
##################################################################
2806
1640
# Parsing of options, both command line and config file
2807
2808
parser = argparse.ArgumentParser()
2809
parser.add_argument("-v", "--version", action="version",
2810
version="%(prog)s {}".format(version),
2811
help="show version number and exit")
2812
parser.add_argument("-i", "--interface", metavar="IF",
2813
help="Bind to interface IF")
2814
parser.add_argument("-a", "--address",
2815
help="Address to listen for requests on")
2816
parser.add_argument("-p", "--port", type=int,
2817
help="Port number to receive requests on")
2818
parser.add_argument("--check", action="store_true",
2819
help="Run self-test")
2820
parser.add_argument("--debug", action="store_true",
2821
help="Debug mode; run in foreground and log"
2822
" to terminal", default=None)
2823
parser.add_argument("--debuglevel", metavar="LEVEL",
2824
help="Debug level for stdout output")
2825
parser.add_argument("--priority", help="GnuTLS"
2826
" priority string (see GnuTLS documentation)")
2827
parser.add_argument("--servicename",
2828
metavar="NAME", help="Zeroconf service name")
2829
parser.add_argument("--configdir",
2830
default="/etc/mandos", metavar="DIR",
2831
help="Directory to search for configuration"
2832
" files")
2833
parser.add_argument("--no-dbus", action="store_false",
2834
dest="use_dbus", help="Do not provide D-Bus"
2835
" system bus interface", default=None)
2836
parser.add_argument("--no-ipv6", action="store_false",
2837
dest="use_ipv6", help="Do not use IPv6",
2838
default=None)
2839
parser.add_argument("--no-restore", action="store_false",
2840
dest="restore", help="Do not restore stored"
2841
" state", default=None)
2842
parser.add_argument("--socket", type=int,
2843
help="Specify a file descriptor to a network"
2844
" socket to use instead of creating one")
2845
parser.add_argument("--statedir", metavar="DIR",
2846
help="Directory to save/restore state in")
2847
parser.add_argument("--foreground", action="store_true",
2848
help="Run in foreground", default=None)
2849
parser.add_argument("--no-zeroconf", action="store_false",
2850
dest="zeroconf", help="Do not use Zeroconf",
2851
default=None)
2852
2853
options = parser.parse_args()
2854
1641
1642
parser = optparse.OptionParser(version = "%%prog %s" % version)
1643
parser.add_option("-i", u"--interface", type=u"string",
1644
metavar="IF", help=u"Bind to interface IF")
1645
parser.add_option("-a", u"--address", type=u"string",
1646
help=u"Address to listen for requests on")
1647
parser.add_option("-p", u"--port", type=u"int",
1648
help=u"Port number to receive requests on")
1649
parser.add_option("--check", action=u"store_true",
1650
help=u"Run self-test")
1651
parser.add_option("--debug", action=u"store_true",
1652
help=u"Debug mode; run in foreground and log to"
1653
u" terminal")
1654
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1655
help=u"Debug level for stdout output")
1656
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1657
u" priority string (see GnuTLS documentation)")
1658
parser.add_option("--servicename", type=u"string",
1659
metavar=u"NAME", help=u"Zeroconf service name")
1660
parser.add_option("--configdir", type=u"string",
1661
default=u"/etc/mandos", metavar=u"DIR",
1662
help=u"Directory to search for configuration"
1663
u" files")
1664
parser.add_option("--no-dbus", action=u"store_false",
1665
dest=u"use_dbus", help=u"Do not provide D-Bus"
1666
u" system bus interface")
1667
parser.add_option("--no-ipv6", action=u"store_false",
1668
dest=u"use_ipv6", help=u"Do not use IPv6")
1669
options = parser.parse_args()[0]
1670
2855
1671
if options.check:
2856
1672
import doctest
2857
fail_count, test_count = doctest.testmod()
2858
sys.exit(os.EX_OK if fail_count == 0 else 1)
2859
1673
doctest.testmod()
1674
sys.exit()
1675
2860
1676
# Default values for config file for server-global settings
2861
server_defaults = {"interface": "",
2862
"address": "",
2863
"port": "",
2864
"debug": "False",
2865
"priority":
2866
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2867
":+SIGN-DSA-SHA256",
2868
"servicename": "Mandos",
2869
"use_dbus": "True",
2870
"use_ipv6": "True",
2871
"debuglevel": "",
2872
"restore": "True",
2873
"socket": "",
2874
"statedir": "/var/lib/mandos",
2875
"foreground": "False",
2876
"zeroconf": "True",
2877
}
2878
1677
server_defaults = { u"interface": u"",
1678
u"address": u"",
1679
u"port": u"",
1680
u"debug": u"False",
1681
u"priority":
1682
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1683
u"servicename": u"Mandos",
1684
u"use_dbus": u"True",
1685
u"use_ipv6": u"True",
1686
u"debuglevel": u"",
1687
}
1688
2879
1689
# Parse config file for server-global settings
2880
1690
server_config = configparser.SafeConfigParser(server_defaults)
2881
1691
del server_defaults
2882
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1692
server_config.read(os.path.join(options.configdir,
1693
u"mandos.conf"))
2883
1694
# Convert the SafeConfigParser object to a dict
2884
1695
server_settings = server_config.defaults()
2885
1696
# Use the appropriate methods on the non-string config options
2886
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2887
server_settings[option] = server_config.getboolean("DEFAULT",
1697
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1698
server_settings[option] = server_config.getboolean(u"DEFAULT",
2888
1699
option)
2889
1700
if server_settings["port"]:
2890
server_settings["port"] = server_config.getint("DEFAULT",
2891
"port")
2892
if server_settings["socket"]:
2893
server_settings["socket"] = server_config.getint("DEFAULT",
2894
"socket")
2895
# Later, stdin will, and stdout and stderr might, be dup'ed
2896
# over with an opened os.devnull. But we don't want this to
2897
# happen with a supplied network socket.
2898
if 0 <= server_settings["socket"] <= 2:
2899
server_settings["socket"] = os.dup(server_settings
2900
["socket"])
1701
server_settings["port"] = server_config.getint(u"DEFAULT",
1702
u"port")
2901
1703
del server_config
2902
1704
2903
1705
# Override the settings from the config file with command line
2904
1706
# options, if set.
2905
for option in ("interface", "address", "port", "debug",
2906
"priority", "servicename", "configdir", "use_dbus",
2907
"use_ipv6", "debuglevel", "restore", "statedir",
2908
"socket", "foreground", "zeroconf"):
1707
for option in (u"interface", u"address", u"port", u"debug",
1708
u"priority", u"servicename", u"configdir",
1709
u"use_dbus", u"use_ipv6", u"debuglevel"):
2909
1710
value = getattr(options, option)
2910
1711
if value is not None:
2911
1712
server_settings[option] = value
2912
1713
del options
2913
1714
# Force all strings to be unicode
2914
1715
for option in server_settings.keys():
2915
if isinstance(server_settings[option], bytes):
2916
server_settings[option] = (server_settings[option]
2917
.decode("utf-8"))
2918
# Force all boolean options to be boolean
2919
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2920
"foreground", "zeroconf"):
2921
server_settings[option] = bool(server_settings[option])
2922
# Debug implies foreground
2923
if server_settings["debug"]:
2924
server_settings["foreground"] = True
1716
if type(server_settings[option]) is str:
1717
server_settings[option] = unicode(server_settings[option])
2925
1718
# Now we have our good server settings in "server_settings"
2926
1719
2927
1720
##################################################################
2928
2929
if (not server_settings["zeroconf"]
2930
and not (server_settings["port"]
2931
or server_settings["socket"] != "")):
2932
parser.error("Needs port or socket to work without Zeroconf")
2933
1721
2934
1722
# For convenience
2935
debug = server_settings["debug"]
2936
debuglevel = server_settings["debuglevel"]
2937
use_dbus = server_settings["use_dbus"]
2938
use_ipv6 = server_settings["use_ipv6"]
2939
stored_state_path = os.path.join(server_settings["statedir"],
2940
stored_state_file)
2941
foreground = server_settings["foreground"]
2942
zeroconf = server_settings["zeroconf"]
2943
2944
if debug:
2945
initlogger(debug, logging.DEBUG)
2946
else:
2947
if not debuglevel:
2948
initlogger(debug)
2949
else:
2950
level = getattr(logging, debuglevel.upper())
2951
initlogger(debug, level)
2952
2953
if server_settings["servicename"] != "Mandos":
2954
syslogger.setFormatter(
2955
logging.Formatter('Mandos ({}) [%(process)d]:'
2956
' %(levelname)s: %(message)s'.format(
2957
server_settings["servicename"])))
2958
1723
debug = server_settings[u"debug"]
1724
debuglevel = server_settings[u"debuglevel"]
1725
use_dbus = server_settings[u"use_dbus"]
1726
use_ipv6 = server_settings[u"use_ipv6"]
1727
1728
if server_settings[u"servicename"] != u"Mandos":
1729
syslogger.setFormatter(logging.Formatter
1730
(u'Mandos (%s) [%%(process)d]:'
1731
u' %%(levelname)s: %%(message)s'
1732
% server_settings[u"servicename"]))
1733
2959
1734
# Parse config file with clients
2960
client_config = configparser.SafeConfigParser(Client
2961
.client_defaults)
2962
client_config.read(os.path.join(server_settings["configdir"],
2963
"clients.conf"))
2964
1735
client_defaults = { u"timeout": u"1h",
1736
u"interval": u"5m",
1737
u"checker": u"fping -q -- %%(host)s",
1738
u"host": u"",
1739
u"approval_delay": u"0s",
1740
u"approval_duration": u"1s",
1741
}
1742
client_config = configparser.SafeConfigParser(client_defaults)
1743
client_config.read(os.path.join(server_settings[u"configdir"],
1744
u"clients.conf"))
1745
2965
1746
global mandos_dbus_service
2966
1747
mandos_dbus_service = None
2967
2968
socketfd = None
2969
if server_settings["socket"] != "":
2970
socketfd = server_settings["socket"]
2971
tcp_server = MandosServer(
2972
(server_settings["address"], server_settings["port"]),
2973
ClientHandler,
2974
interface=(server_settings["interface"] or None),
2975
use_ipv6=use_ipv6,
2976
gnutls_priority=server_settings["priority"],
2977
use_dbus=use_dbus,
2978
socketfd=socketfd)
2979
if not foreground:
2980
pidfilename = "/run/mandos.pid"
2981
if not os.path.isdir("/run/."):
2982
pidfilename = "/var/run/mandos.pid"
2983
pidfile = None
2984
try:
2985
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2986
except IOError as e:
2987
logger.error("Could not open file %r", pidfilename,
2988
exc_info=e)
2989
2990
for name, group in (("_mandos", "_mandos"),
2991
("mandos", "mandos"),
2992
("nobody", "nogroup")):
2993
try:
2994
uid = pwd.getpwnam(name).pw_uid
2995
gid = pwd.getpwnam(group).pw_gid
2996
break
1748
1749
tcp_server = MandosServer((server_settings[u"address"],
1750
server_settings[u"port"]),
1751
ClientHandler,
1752
interface=(server_settings[u"interface"]
1753
or None),
1754
use_ipv6=use_ipv6,
1755
gnutls_priority=
1756
server_settings[u"priority"],
1757
use_dbus=use_dbus)
1758
pidfilename = u"/var/run/mandos.pid"
1759
try:
1760
pidfile = open(pidfilename, u"w")
1761
except IOError:
1762
logger.error(u"Could not open file %r", pidfilename)
1763
1764
try:
1765
uid = pwd.getpwnam(u"_mandos").pw_uid
1766
gid = pwd.getpwnam(u"_mandos").pw_gid
1767
except KeyError:
1768
try:
1769
uid = pwd.getpwnam(u"mandos").pw_uid
1770
gid = pwd.getpwnam(u"mandos").pw_gid
2997
1771
except KeyError:
2998
continue
2999
else:
3000
uid = 65534
3001
gid = 65534
1772
try:
1773
uid = pwd.getpwnam(u"nobody").pw_uid
1774
gid = pwd.getpwnam(u"nobody").pw_gid
1775
except KeyError:
1776
uid = 65534
1777
gid = 65534
3002
1778
try:
3003
1779
os.setgid(gid)
3004
1780
os.setuid(uid)
3005
if debug:
3006
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3007
gid))
3008
except OSError as error:
3009
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3010
.format(uid, gid, os.strerror(error.errno)))
3011
if error.errno != errno.EPERM:
3012
raise
1781
except OSError, error:
1782
if error[0] != errno.EPERM:
1783
raise error
1784
1785
if not debug and not debuglevel:
1786
syslogger.setLevel(logging.WARNING)
1787
console.setLevel(logging.WARNING)
1788
if debuglevel:
1789
level = getattr(logging, debuglevel.upper())
1790
syslogger.setLevel(level)
1791
console.setLevel(level)
3013
1792
3014
1793
if debug:
3015
1794
# Enable all possible GnuTLS debugging
3016
1795
3017
1796
# "Use a log level over 10 to enable all debugging options."
3018
1797
# - GnuTLS manual
3019
gnutls.global_set_log_level(11)
3020
3021
@gnutls.log_func
1798
gnutls.library.functions.gnutls_global_set_log_level(11)
1799
1800
@gnutls.library.types.gnutls_log_func
3022
1801
def debug_gnutls(level, string):
3023
logger.debug("GnuTLS: %s", string[:-1])
3024
3025
gnutls.global_set_log_function(debug_gnutls)
3026
1802
logger.debug(u"GnuTLS: %s", string[:-1])
1803
1804
(gnutls.library.functions
1805
.gnutls_global_set_log_function(debug_gnutls))
1806
3027
1807
# Redirect stdin so all checkers get /dev/null
3028
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1808
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3029
1809
os.dup2(null, sys.stdin.fileno())
3030
1810
if null > 2:
3031
1811
os.close(null)
3032
3033
# Need to fork before connecting to D-Bus
3034
if not foreground:
3035
# Close all input and output, do double fork, etc.
3036
daemon()
3037
3038
# multiprocessing will use threads, so before we use GLib we need
3039
# to inform GLib that threads will be used.
3040
GLib.threads_init()
3041
1812
else:
1813
# No console logging
1814
logger.removeHandler(console)
1815
1816
3042
1817
global main_loop
3043
1818
# From the Avahi example code
3044
DBusGMainLoop(set_as_default=True)
3045
main_loop = GLib.MainLoop()
1819
DBusGMainLoop(set_as_default=True )
1820
main_loop = gobject.MainLoop()
3046
1821
bus = dbus.SystemBus()
3047
1822
# End of Avahi example code
3048
1823
if use_dbus:
3049
1824
try:
3050
bus_name = dbus.service.BusName("se.recompile.Mandos",
3051
bus,
3052
do_not_queue=True)
3053
old_bus_name = dbus.service.BusName(
3054
"se.bsnet.fukt.Mandos", bus,
3055
do_not_queue=True)
3056
except dbus.exceptions.DBusException as e:
3057
logger.error("Disabling D-Bus:", exc_info=e)
1825
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1826
bus, do_not_queue=True)
1827
except dbus.exceptions.NameExistsException, e:
1828
logger.error(unicode(e) + u", disabling D-Bus")
3058
1829
use_dbus = False
3059
server_settings["use_dbus"] = False
1830
server_settings[u"use_dbus"] = False
3060
1831
tcp_server.use_dbus = False
3061
if zeroconf:
3062
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3063
service = AvahiServiceToSyslog(
3064
name=server_settings["servicename"],
3065
servicetype="_mandos._tcp",
3066
protocol=protocol,
3067
bus=bus)
3068
if server_settings["interface"]:
3069
service.interface = if_nametoindex(
3070
server_settings["interface"].encode("utf-8"))
1832
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1833
service = AvahiService(name = server_settings[u"servicename"],
1834
servicetype = u"_mandos._tcp",
1835
protocol = protocol, bus = bus)
1836
if server_settings["interface"]:
1837
service.interface = (if_nametoindex
1838
(str(server_settings[u"interface"])))
3071
1839
1840
if not debug:
1841
# Close all input and output, do double fork, etc.
1842
daemon()
1843
3072
1844
global multiprocessing_manager
3073
1845
multiprocessing_manager = multiprocessing.Manager()
3074
1846
3075
1847
client_class = Client
3076
1848
if use_dbus:
3077
client_class = functools.partial(ClientDBus, bus=bus)
3078
3079
client_settings = Client.config_parser(client_config)
3080
old_client_settings = {}
3081
clients_data = {}
3082
3083
# This is used to redirect stdout and stderr for checker processes
3084
global wnull
3085
wnull = open(os.devnull, "w") # A writable /dev/null
3086
# Only used if server is running in foreground but not in debug
3087
# mode
3088
if debug or not foreground:
3089
wnull.close()
3090
3091
# Get client data and settings from last running state.
3092
if server_settings["restore"]:
3093
try:
3094
with open(stored_state_path, "rb") as stored_state:
3095
if sys.version_info.major == 2:
3096
clients_data, old_client_settings = pickle.load(
3097
stored_state)
3098
else:
3099
bytes_clients_data, bytes_old_client_settings = (
3100
pickle.load(stored_state, encoding="bytes"))
3101
# Fix bytes to strings
3102
# clients_data
3103
# .keys()
3104
clients_data = {(key.decode("utf-8")
3105
if isinstance(key, bytes)
3106
else key): value
3107
for key, value in
3108
bytes_clients_data.items()}
3109
del bytes_clients_data
3110
for key in clients_data:
3111
value = {(k.decode("utf-8")
3112
if isinstance(k, bytes) else k): v
3113
for k, v in
3114
clients_data[key].items()}
3115
clients_data[key] = value
3116
# .client_structure
3117
value["client_structure"] = [
3118
(s.decode("utf-8")
3119
if isinstance(s, bytes)
3120
else s) for s in
3121
value["client_structure"]]
3122
# .name & .host
3123
for k in ("name", "host"):
3124
if isinstance(value[k], bytes):
3125
value[k] = value[k].decode("utf-8")
3126
# old_client_settings
3127
# .keys()
3128
old_client_settings = {
3129
(key.decode("utf-8")
3130
if isinstance(key, bytes)
3131
else key): value
3132
for key, value in
3133
bytes_old_client_settings.items()}
3134
del bytes_old_client_settings
3135
# .host
3136
for value in old_client_settings.values():
3137
if isinstance(value["host"], bytes):
3138
value["host"] = (value["host"]
3139
.decode("utf-8"))
3140
os.remove(stored_state_path)
3141
except IOError as e:
3142
if e.errno == errno.ENOENT:
3143
logger.warning("Could not load persistent state:"
3144
" {}".format(os.strerror(e.errno)))
3145
else:
3146
logger.critical("Could not load persistent state:",
3147
exc_info=e)
3148
raise
3149
except EOFError as e:
3150
logger.warning("Could not load persistent state: "
3151
"EOFError:",
3152
exc_info=e)
3153
3154
with PGPEngine() as pgp:
3155
for client_name, client in clients_data.items():
3156
# Skip removed clients
3157
if client_name not in client_settings:
3158
continue
3159
3160
# Decide which value to use after restoring saved state.
3161
# We have three different values: Old config file,
3162
# new config file, and saved state.
3163
# New config value takes precedence if it differs from old
3164
# config value, otherwise use saved state.
3165
for name, value in client_settings[client_name].items():
3166
try:
3167
# For each value in new config, check if it
3168
# differs from the old config value (Except for
3169
# the "secret" attribute)
3170
if (name != "secret"
3171
and (value !=
3172
old_client_settings[client_name][name])):
3173
client[name] = value
3174
except KeyError:
3175
pass
3176
3177
# Clients who has passed its expire date can still be
3178
# enabled if its last checker was successful. A Client
3179
# whose checker succeeded before we stored its state is
3180
# assumed to have successfully run all checkers during
3181
# downtime.
3182
if client["enabled"]:
3183
if datetime.datetime.utcnow() >= client["expires"]:
3184
if not client["last_checked_ok"]:
3185
logger.warning(
3186
"disabling client {} - Client never "
3187
"performed a successful checker".format(
3188
client_name))
3189
client["enabled"] = False
3190
elif client["last_checker_status"] != 0:
3191
logger.warning(
3192
"disabling client {} - Client last"
3193
" checker failed with error code"
3194
" {}".format(
3195
client_name,
3196
client["last_checker_status"]))
3197
client["enabled"] = False
3198
else:
3199
client["expires"] = (
3200
datetime.datetime.utcnow()
3201
+ client["timeout"])
3202
logger.debug("Last checker succeeded,"
3203
" keeping {} enabled".format(
3204
client_name))
1849
client_class = functools.partial(ClientDBus, bus = bus)
1850
def client_config_items(config, section):
1851
special_settings = {
1852
"approved_by_default":
1853
lambda: config.getboolean(section,
1854
"approved_by_default"),
1855
}
1856
for name, value in config.items(section):
3205
1857
try:
3206
client["secret"] = pgp.decrypt(
3207
client["encrypted_secret"],
3208
client_settings[client_name]["secret"])
3209
except PGPError:
3210
# If decryption fails, we use secret from new settings
3211
logger.debug("Failed to decrypt {} old secret".format(
3212
client_name))
3213
client["secret"] = (client_settings[client_name]
3214
["secret"])
3215
3216
# Add/remove clients based on new changes made to config
3217
for client_name in (set(old_client_settings)
3218
- set(client_settings)):
3219
del clients_data[client_name]
3220
for client_name in (set(client_settings)
3221
- set(old_client_settings)):
3222
clients_data[client_name] = client_settings[client_name]
3223
3224
# Create all client objects
3225
for client_name, client in clients_data.items():
3226
tcp_server.clients[client_name] = client_class(
3227
name=client_name,
3228
settings=client,
3229
server_settings=server_settings)
3230
1858
yield (name, special_settings[name]())
1859
except KeyError:
1860
yield (name, value)
1861
1862
tcp_server.clients.update(set(
1863
client_class(name = section,
1864
config= dict(client_config_items(
1865
client_config, section)))
1866
for section in client_config.sections()))
3231
1867
if not tcp_server.clients:
3232
logger.warning("No clients defined")
3233
3234
if not foreground:
3235
if pidfile is not None:
1868
logger.warning(u"No clients defined")
1869
1870
try:
1871
with pidfile:
3236
1872
pid = os.getpid()
3237
try:
3238
with pidfile:
3239
print(pid, file=pidfile)
3240
except IOError:
3241
logger.error("Could not write to file %r with PID %d",
3242
pidfilename, pid)
1873
pidfile.write(str(pid) + "\n")
3243
1874
del pidfile
3244
del pidfilename
3245
3246
for termsig in (signal.SIGHUP, signal.SIGTERM):
3247
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3248
lambda: main_loop.quit() and False)
3249
1875
except IOError:
1876
logger.error(u"Could not write to file %r with PID %d",
1877
pidfilename, pid)
1878
except NameError:
1879
# "pidfile" was never created
1880
pass
1881
del pidfilename
1882
1883
if not debug:
1884
signal.signal(signal.SIGINT, signal.SIG_IGN)
1885
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1886
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1887
3250
1888
if use_dbus:
3251
3252
@alternate_dbus_interfaces(
3253
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3254
class MandosDBusService(DBusObjectWithObjectManager):
1889
class MandosDBusService(dbus.service.Object):
3255
1890
"""A D-Bus proxy object"""
3256
3257
1891
def __init__(self):
3258
dbus.service.Object.__init__(self, bus, "/")
3259
3260
_interface = "se.recompile.Mandos"
3261
3262
@dbus.service.signal(_interface, signature="o")
1892
dbus.service.Object.__init__(self, bus, u"/")
1893
_interface = u"se.bsnet.fukt.Mandos"
1894
1895
@dbus.service.signal(_interface, signature=u"o")
3263
1896
def ClientAdded(self, objpath):
3264
1897
"D-Bus signal"
3265
1898
pass
3266
3267
@dbus.service.signal(_interface, signature="ss")
1899
1900
@dbus.service.signal(_interface, signature=u"ss")
3268
1901
def ClientNotFound(self, fingerprint, address):
3269
1902
"D-Bus signal"
3270
1903
pass
3271
3272
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3273
"true"})
3274
@dbus.service.signal(_interface, signature="os")
1904
1905
@dbus.service.signal(_interface, signature=u"os")
3275
1906
def ClientRemoved(self, objpath, name):
3276
1907
"D-Bus signal"
3277
1908
pass
3278
3279
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3280
"true"})
3281
@dbus.service.method(_interface, out_signature="ao")
1909
1910
@dbus.service.method(_interface, out_signature=u"ao")
3282
1911
def GetAllClients(self):
3283
1912
"D-Bus method"
3284
return dbus.Array(c.dbus_object_path for c in
3285
tcp_server.clients.values())
3286
3287
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3288
"true"})
1913
return dbus.Array(c.dbus_object_path
1914
for c in tcp_server.clients)
1915
3289
1916
@dbus.service.method(_interface,
3290
out_signature="a{oa{sv}}")
1917
out_signature=u"a{oa{sv}}")
3291
1918
def GetAllClientsWithProperties(self):
3292
1919
"D-Bus method"
3293
1920
return dbus.Dictionary(
3294
{c.dbus_object_path: c.GetAll(
3295
"se.recompile.Mandos.Client")
3296
for c in tcp_server.clients.values()},
3297
signature="oa{sv}")
3298
3299
@dbus.service.method(_interface, in_signature="o")
1921
((c.dbus_object_path, c.GetAll(u""))
1922
for c in tcp_server.clients),
1923
signature=u"oa{sv}")
1924
1925
@dbus.service.method(_interface, in_signature=u"o")
3300
1926
def RemoveClient(self, object_path):
3301
1927
"D-Bus method"
3302
for c in tcp_server.clients.values():
1928
for c in tcp_server.clients:
3303
1929
if c.dbus_object_path == object_path:
3304
del tcp_server.clients[c.name]
1930
tcp_server.clients.remove(c)
3305
1931
c.remove_from_connection()
3306
# Don't signal the disabling
1932
# Don't signal anything except ClientRemoved
3307
1933
c.disable(quiet=True)
3308
# Emit D-Bus signal for removal
3309
self.client_removed_signal(c)
1934
# Emit D-Bus signal
1935
self.ClientRemoved(object_path, c.name)
3310
1936
return
3311
1937
raise KeyError(object_path)
3312
1938
3313
1939
del _interface
3314
3315
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3316
out_signature="a{oa{sa{sv}}}")
3317
def GetManagedObjects(self):
3318
"""D-Bus method"""
3319
return dbus.Dictionary(
3320
{client.dbus_object_path:
3321
dbus.Dictionary(
3322
{interface: client.GetAll(interface)
3323
for interface in
3324
client._get_all_interface_names()})
3325
for client in tcp_server.clients.values()})
3326
3327
def client_added_signal(self, client):
3328
"""Send the new standard signal and the old signal"""
3329
if use_dbus:
3330
# New standard signal
3331
self.InterfacesAdded(
3332
client.dbus_object_path,
3333
dbus.Dictionary(
3334
{interface: client.GetAll(interface)
3335
for interface in
3336
client._get_all_interface_names()}))
3337
# Old signal
3338
self.ClientAdded(client.dbus_object_path)
3339
3340
def client_removed_signal(self, client):
3341
"""Send the new standard signal and the old signal"""
3342
if use_dbus:
3343
# New standard signal
3344
self.InterfacesRemoved(
3345
client.dbus_object_path,
3346
client._get_all_interface_names())
3347
# Old signal
3348
self.ClientRemoved(client.dbus_object_path,
3349
client.name)
3350
1940
3351
1941
mandos_dbus_service = MandosDBusService()
3352
3353
# Save modules to variables to exempt the modules from being
3354
# unloaded before the function registered with atexit() is run.
3355
mp = multiprocessing
3356
wn = wnull
3357
1942
3358
1943
def cleanup():
3359
1944
"Cleanup function; run on exit"
3360
if zeroconf:
3361
service.cleanup()
3362
3363
mp.active_children()
3364
wn.close()
3365
if not (tcp_server.clients or client_settings):
3366
return
3367
3368
# Store client before exiting. Secrets are encrypted with key
3369
# based on what config file has. If config file is
3370
# removed/edited, old secret will thus be unrecovable.
3371
clients = {}
3372
with PGPEngine() as pgp:
3373
for client in tcp_server.clients.values():
3374
key = client_settings[client.name]["secret"]
3375
client.encrypted_secret = pgp.encrypt(client.secret,
3376
key)
3377
client_dict = {}
3378
3379
# A list of attributes that can not be pickled
3380
# + secret.
3381
exclude = {"bus", "changedstate", "secret",
3382
"checker", "server_settings"}
3383
for name, typ in inspect.getmembers(dbus.service
3384
.Object):
3385
exclude.add(name)
3386
3387
client_dict["encrypted_secret"] = (client
3388
.encrypted_secret)
3389
for attr in client.client_structure:
3390
if attr not in exclude:
3391
client_dict[attr] = getattr(client, attr)
3392
3393
clients[client.name] = client_dict
3394
del client_settings[client.name]["secret"]
3395
3396
try:
3397
with tempfile.NamedTemporaryFile(
3398
mode='wb',
3399
suffix=".pickle",
3400
prefix='clients-',
3401
dir=os.path.dirname(stored_state_path),
3402
delete=False) as stored_state:
3403
pickle.dump((clients, client_settings), stored_state,
3404
protocol=2)
3405
tempname = stored_state.name
3406
os.rename(tempname, stored_state_path)
3407
except (IOError, OSError) as e:
3408
if not debug:
3409
try:
3410
os.remove(tempname)
3411
except NameError:
3412
pass
3413
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3414
logger.warning("Could not save persistent state: {}"
3415
.format(os.strerror(e.errno)))
3416
else:
3417
logger.warning("Could not save persistent state:",
3418
exc_info=e)
3419
raise
3420
3421
# Delete all clients, and settings from config
1945
service.cleanup()
1946
3422
1947
while tcp_server.clients:
3423
name, client = tcp_server.clients.popitem()
1948
client = tcp_server.clients.pop()
3424
1949
if use_dbus:
3425
1950
client.remove_from_connection()
3426
# Don't signal the disabling
1951
client.disable_hook = None
1952
# Don't signal anything except ClientRemoved
3427
1953
client.disable(quiet=True)
3428
# Emit D-Bus signal for removal
3429
1954
if use_dbus:
3430
mandos_dbus_service.client_removed_signal(client)
3431
client_settings.clear()
3432
1955
# Emit D-Bus signal
1956
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1957
client.name)
1958
3433
1959
atexit.register(cleanup)
3434
3435
for client in tcp_server.clients.values():
1960
1961
for client in tcp_server.clients:
3436
1962
if use_dbus:
3437
# Emit D-Bus signal for adding
3438
mandos_dbus_service.client_added_signal(client)
3439
# Need to initiate checking of clients
3440
if client.enabled:
3441
client.init_checker()
3442
1963
# Emit D-Bus signal
1964
mandos_dbus_service.ClientAdded(client.dbus_object_path)
1965
client.enable()
1966
3443
1967
tcp_server.enable()
3444
1968
tcp_server.server_activate()
3445
1969
3446
1970
# Find out what port we got
3447
if zeroconf:
3448
service.port = tcp_server.socket.getsockname()[1]
1971
service.port = tcp_server.socket.getsockname()[1]
3449
1972
if use_ipv6:
3450
logger.info("Now listening on address %r, port %d,"
3451
" flowinfo %d, scope_id %d",
3452
*tcp_server.socket.getsockname())
1973
logger.info(u"Now listening on address %r, port %d,"
1974
" flowinfo %d, scope_id %d"
1975
% tcp_server.socket.getsockname())
3453
1976
else: # IPv4
3454
logger.info("Now listening on address %r, port %d",
3455
*tcp_server.socket.getsockname())
3456
3457
# service.interface = tcp_server.socket.getsockname()[3]
3458
1977
logger.info(u"Now listening on address %r, port %d"
1978
% tcp_server.socket.getsockname())
1979
1980
#service.interface = tcp_server.socket.getsockname()[3]
1981
3459
1982
try:
3460
if zeroconf:
3461
# From the Avahi example code
3462
try:
3463
service.activate()
3464
except dbus.exceptions.DBusException as error:
3465
logger.critical("D-Bus Exception", exc_info=error)
3466
cleanup()
3467
sys.exit(1)
3468
# End of Avahi example code
3469
3470
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3471
lambda *args, **kwargs:
3472
(tcp_server.handle_request
3473
(*args[2:], **kwargs) or True))
3474
3475
logger.debug("Starting main loop")
1983
# From the Avahi example code
1984
try:
1985
service.activate()
1986
except dbus.exceptions.DBusException, error:
1987
logger.critical(u"DBusException: %s", error)
1988
cleanup()
1989
sys.exit(1)
1990
# End of Avahi example code
1991
1992
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
1993
lambda *args, **kwargs:
1994
(tcp_server.handle_request
1995
(*args[2:], **kwargs) or True))
1996
1997
logger.debug(u"Starting main loop")
3476
1998
main_loop.run()
3477
except AvahiError as error:
3478
logger.critical("Avahi Error", exc_info=error)
1999
except AvahiError, error:
2000
logger.critical(u"AvahiError: %s", error)
3479
2001
cleanup()
3480
2002
sys.exit(1)
3481
2003
except KeyboardInterrupt:
3482
2004
if debug:
3483
print("", file=sys.stderr)
3484
logger.debug("Server received KeyboardInterrupt")
3485
logger.debug("Server exiting")
2005
print >> sys.stderr
2006
logger.debug(u"Server received KeyboardInterrupt")
2007
logger.debug(u"Server exiting")
3486
2008
# Must run before the D-Bus bus name gets deregistered
3487
2009
cleanup()
3488
2010
3489
3490
2011
if __name__ == '__main__':
3491
2012
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0