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- Committer: teddy at bsnet
- Date: 2010-09-27 16:27:13 UTC
- Revision ID: teddy@fukt.bsnet.se-20100927162713-jucnyd63612ximvw
* mandos-monitor: Change key for removing a client from "r" to "R".
- 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 © 2008-2018 Teddy Hogeborn
15
# Copyright © 2008-2018 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2010 Teddy Hogeborn
15
# Copyright © 2008-2010 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
32
# Contact the authors at <mandos@recompile.se>.
33
#
34
35
from __future__ import (division, absolute_import, print_function,
36
unicode_literals)
37
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
#
33
34
from __future__ import division, with_statement, absolute_import
35
36
import SocketServer as socketserver
47
37
import socket
48
import argparse
38
import optparse
49
39
import datetime
50
40
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
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
55
48
import sys
56
49
import re
57
50
import os
66
59
import struct
67
60
import fcntl
68
61
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
62
import cPickle as pickle
73
63
import multiprocessing
74
import types
75
import binascii
76
import tempfile
77
import itertools
78
import collections
79
import codecs
80
64
81
65
import dbus
82
66
import dbus.service
83
from gi.repository import GLib
67
import gobject
68
import avahi
84
69
from dbus.mainloop.glib import DBusGMainLoop
85
70
import ctypes
86
71
import ctypes.util
87
72
import xml.dom.minidom
88
73
import inspect
89
74
90
# Try to find the value of SO_BINDTODEVICE:
91
75
try:
92
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
93
# newer, and it is also the most natural place for it:
94
76
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
95
77
except AttributeError:
96
78
try:
97
# This is where SO_BINDTODEVICE was up to and including Python
98
# 2.6, and also 3.2:
99
79
from IN import SO_BINDTODEVICE
100
80
except ImportError:
101
# In Python 2.7 it seems to have been removed entirely.
102
# Try running the C preprocessor:
103
try:
104
cc = subprocess.Popen(["cc", "--language=c", "-E",
105
"/dev/stdin"],
106
stdin=subprocess.PIPE,
107
stdout=subprocess.PIPE)
108
stdout = cc.communicate(
109
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
110
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
111
except (OSError, ValueError, IndexError):
112
# No value found
113
SO_BINDTODEVICE = None
114
115
if sys.version_info.major == 2:
116
str = unicode
117
118
version = "1.7.19"
119
stored_state_file = "clients.pickle"
120
121
logger = logging.getLogger()
122
syslogger = None
123
124
try:
125
if_nametoindex = ctypes.cdll.LoadLibrary(
126
ctypes.util.find_library("c")).if_nametoindex
127
except (OSError, AttributeError):
128
129
def if_nametoindex(interface):
130
"Get an interface index the hard way, i.e. using fcntl()"
131
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
132
with contextlib.closing(socket.socket()) as s:
133
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
134
struct.pack(b"16s16x", interface))
135
interface_index = struct.unpack("I", ifreq[16:20])[0]
136
return interface_index
137
138
139
def copy_function(func):
140
"""Make a copy of a function"""
141
if sys.version_info.major == 2:
142
return types.FunctionType(func.func_code,
143
func.func_globals,
144
func.func_name,
145
func.func_defaults,
146
func.func_closure)
147
else:
148
return types.FunctionType(func.__code__,
149
func.__globals__,
150
func.__name__,
151
func.__defaults__,
152
func.__closure__)
153
154
155
def initlogger(debug, level=logging.WARNING):
156
"""init logger and add loglevel"""
157
158
global syslogger
159
syslogger = (logging.handlers.SysLogHandler(
160
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
161
address="/dev/log"))
162
syslogger.setFormatter(logging.Formatter
163
('Mandos [%(process)d]: %(levelname)s:'
164
' %(message)s'))
165
logger.addHandler(syslogger)
166
167
if debug:
168
console = logging.StreamHandler()
169
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
170
' [%(process)d]:'
171
' %(levelname)s:'
172
' %(message)s'))
173
logger.addHandler(console)
174
logger.setLevel(level)
175
176
177
class PGPError(Exception):
178
"""Exception if encryption/decryption fails"""
179
pass
180
181
182
class PGPEngine(object):
183
"""A simple class for OpenPGP symmetric encryption & decryption"""
184
185
def __init__(self):
186
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
187
self.gpg = "gpg"
188
try:
189
output = subprocess.check_output(["gpgconf"])
190
for line in output.splitlines():
191
name, text, path = line.split(b":")
192
if name == "gpg":
193
self.gpg = path
194
break
195
except OSError as e:
196
if e.errno != errno.ENOENT:
197
raise
198
self.gnupgargs = ['--batch',
199
'--homedir', self.tempdir,
200
'--force-mdc',
201
'--quiet']
202
# Only GPG version 1 has the --no-use-agent option.
203
if self.gpg == "gpg" or self.gpg.endswith("/gpg"):
204
self.gnupgargs.append("--no-use-agent")
205
206
def __enter__(self):
207
return self
208
209
def __exit__(self, exc_type, exc_value, traceback):
210
self._cleanup()
211
return False
212
213
def __del__(self):
214
self._cleanup()
215
216
def _cleanup(self):
217
if self.tempdir is not None:
218
# Delete contents of tempdir
219
for root, dirs, files in os.walk(self.tempdir,
220
topdown=False):
221
for filename in files:
222
os.remove(os.path.join(root, filename))
223
for dirname in dirs:
224
os.rmdir(os.path.join(root, dirname))
225
# Remove tempdir
226
os.rmdir(self.tempdir)
227
self.tempdir = None
228
229
def password_encode(self, password):
230
# Passphrase can not be empty and can not contain newlines or
231
# NUL bytes. So we prefix it and hex encode it.
232
encoded = b"mandos" + binascii.hexlify(password)
233
if len(encoded) > 2048:
234
# GnuPG can't handle long passwords, so encode differently
235
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
236
.replace(b"\n", b"\\n")
237
.replace(b"\0", b"\\x00"))
238
return encoded
239
240
def encrypt(self, data, password):
241
passphrase = self.password_encode(password)
242
with tempfile.NamedTemporaryFile(
243
dir=self.tempdir) as passfile:
244
passfile.write(passphrase)
245
passfile.flush()
246
proc = subprocess.Popen([self.gpg, '--symmetric',
247
'--passphrase-file',
248
passfile.name]
249
+ self.gnupgargs,
250
stdin=subprocess.PIPE,
251
stdout=subprocess.PIPE,
252
stderr=subprocess.PIPE)
253
ciphertext, err = proc.communicate(input=data)
254
if proc.returncode != 0:
255
raise PGPError(err)
256
return ciphertext
257
258
def decrypt(self, data, password):
259
passphrase = self.password_encode(password)
260
with tempfile.NamedTemporaryFile(
261
dir=self.tempdir) as passfile:
262
passfile.write(passphrase)
263
passfile.flush()
264
proc = subprocess.Popen([self.gpg, '--decrypt',
265
'--passphrase-file',
266
passfile.name]
267
+ self.gnupgargs,
268
stdin=subprocess.PIPE,
269
stdout=subprocess.PIPE,
270
stderr=subprocess.PIPE)
271
decrypted_plaintext, err = proc.communicate(input=data)
272
if proc.returncode != 0:
273
raise PGPError(err)
274
return decrypted_plaintext
275
276
277
# Pretend that we have an Avahi module
278
class Avahi(object):
279
"""This isn't so much a class as it is a module-like namespace.
280
It is instantiated once, and simulates having an Avahi module."""
281
IF_UNSPEC = -1 # avahi-common/address.h
282
PROTO_UNSPEC = -1 # avahi-common/address.h
283
PROTO_INET = 0 # avahi-common/address.h
284
PROTO_INET6 = 1 # avahi-common/address.h
285
DBUS_NAME = "org.freedesktop.Avahi"
286
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
287
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
288
DBUS_PATH_SERVER = "/"
289
290
def string_array_to_txt_array(self, t):
291
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
292
for s in t), signature="ay")
293
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
294
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
295
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
296
SERVER_INVALID = 0 # avahi-common/defs.h
297
SERVER_REGISTERING = 1 # avahi-common/defs.h
298
SERVER_RUNNING = 2 # avahi-common/defs.h
299
SERVER_COLLISION = 3 # avahi-common/defs.h
300
SERVER_FAILURE = 4 # avahi-common/defs.h
301
avahi = Avahi()
302
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)
303
101
304
102
class AvahiError(Exception):
305
103
def __init__(self, value, *args, **kwargs):
306
104
self.value = value
307
return super(AvahiError, self).__init__(value, *args,
308
**kwargs)
309
105
super(AvahiError, self).__init__(value, *args, **kwargs)
106
def __unicode__(self):
107
return unicode(repr(self.value))
310
108
311
109
class AvahiServiceError(AvahiError):
312
110
pass
313
111
314
315
112
class AvahiGroupError(AvahiError):
316
113
pass
317
114
318
115
319
116
class AvahiService(object):
320
117
"""An Avahi (Zeroconf) service.
321
118
322
119
Attributes:
323
120
interface: integer; avahi.IF_UNSPEC or an interface index.
324
121
Used to optionally bind to the specified interface.
325
name: string; Example: 'Mandos'
326
type: string; Example: '_mandos._tcp'.
327
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>
328
125
port: integer; what port to announce
329
126
TXT: list of strings; TXT record for the service
330
127
domain: string; Domain to publish on, default to .local if empty.
336
133
server: D-Bus Server
337
134
bus: dbus.SystemBus()
338
135
"""
339
340
def __init__(self,
341
interface=avahi.IF_UNSPEC,
342
name=None,
343
servicetype=None,
344
port=None,
345
TXT=None,
346
domain="",
347
host="",
348
max_renames=32768,
349
protocol=avahi.PROTO_UNSPEC,
350
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):
351
140
self.interface = interface
352
141
self.name = name
353
142
self.type = servicetype
361
150
self.group = None # our entry group
362
151
self.server = None
363
152
self.bus = bus
364
self.entry_group_state_changed_match = None
365
366
def rename(self, remove=True):
153
def rename(self):
367
154
"""Derived from the Avahi example code"""
368
155
if self.rename_count >= self.max_renames:
369
logger.critical("No suitable Zeroconf service name found"
370
" after %i retries, exiting.",
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
371
158
self.rename_count)
372
raise AvahiServiceError("Too many renames")
373
self.name = str(
374
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)
375
174
self.rename_count += 1
376
logger.info("Changing Zeroconf service name to %r ...",
377
self.name)
378
if remove:
379
self.remove()
380
try:
381
self.add()
382
except dbus.exceptions.DBusException as error:
383
if (error.get_dbus_name()
384
== "org.freedesktop.Avahi.CollisionError"):
385
logger.info("Local Zeroconf service name collision.")
386
return self.rename(remove=False)
387
else:
388
logger.critical("D-Bus Exception", exc_info=error)
389
self.cleanup()
390
os._exit(1)
391
392
175
def remove(self):
393
176
"""Derived from the Avahi example code"""
394
if self.entry_group_state_changed_match is not None:
395
self.entry_group_state_changed_match.remove()
396
self.entry_group_state_changed_match = None
397
177
if self.group is not None:
398
178
self.group.Reset()
399
400
179
def add(self):
401
180
"""Derived from the Avahi example code"""
402
self.remove()
403
181
if self.group is None:
404
182
self.group = dbus.Interface(
405
183
self.bus.get_object(avahi.DBUS_NAME,
406
184
self.server.EntryGroupNew()),
407
185
avahi.DBUS_INTERFACE_ENTRY_GROUP)
408
self.entry_group_state_changed_match = (
409
self.group.connect_to_signal(
410
'StateChanged', self.entry_group_state_changed))
411
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' ...",
412
190
self.name, self.type)
413
191
self.group.AddService(
414
192
self.interface,
419
197
dbus.UInt16(self.port),
420
198
avahi.string_array_to_txt_array(self.TXT))
421
199
self.group.Commit()
422
423
200
def entry_group_state_changed(self, state, error):
424
201
"""Derived from the Avahi example code"""
425
logger.debug("Avahi entry group state change: %i", state)
426
202
logger.debug(u"Avahi entry group state change: %i", state)
203
427
204
if state == avahi.ENTRY_GROUP_ESTABLISHED:
428
logger.debug("Zeroconf service established.")
205
logger.debug(u"Zeroconf service established.")
429
206
elif state == avahi.ENTRY_GROUP_COLLISION:
430
logger.info("Zeroconf service name collision.")
207
logger.warning(u"Zeroconf service name collision.")
431
208
self.rename()
432
209
elif state == avahi.ENTRY_GROUP_FAILURE:
433
logger.critical("Avahi: Error in group state changed %s",
434
str(error))
435
raise AvahiGroupError("State changed: {!s}".format(error))
436
210
logger.critical(u"Avahi: Error in group state changed %s",
211
unicode(error))
212
raise AvahiGroupError(u"State changed: %s"
213
% unicode(error))
437
214
def cleanup(self):
438
215
"""Derived from the Avahi example code"""
439
216
if self.group is not None:
440
try:
441
self.group.Free()
442
except (dbus.exceptions.UnknownMethodException,
443
dbus.exceptions.DBusException):
444
pass
217
self.group.Free()
445
218
self.group = None
446
self.remove()
447
448
def server_state_changed(self, state, error=None):
219
def server_state_changed(self, state):
449
220
"""Derived from the Avahi example code"""
450
logger.debug("Avahi server state change: %i", state)
451
bad_states = {
452
avahi.SERVER_INVALID: "Zeroconf server invalid",
453
avahi.SERVER_REGISTERING: None,
454
avahi.SERVER_COLLISION: "Zeroconf server name collision",
455
avahi.SERVER_FAILURE: "Zeroconf server failure",
456
}
457
if state in bad_states:
458
if bad_states[state] is not None:
459
if error is None:
460
logger.error(bad_states[state])
461
else:
462
logger.error(bad_states[state] + ": %r", error)
463
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()
464
225
elif state == avahi.SERVER_RUNNING:
465
try:
466
self.add()
467
except dbus.exceptions.DBusException as error:
468
if (error.get_dbus_name()
469
== "org.freedesktop.Avahi.CollisionError"):
470
logger.info("Local Zeroconf service name"
471
" collision.")
472
return self.rename(remove=False)
473
else:
474
logger.critical("D-Bus Exception", exc_info=error)
475
self.cleanup()
476
os._exit(1)
477
else:
478
if error is None:
479
logger.debug("Unknown state: %r", state)
480
else:
481
logger.debug("Unknown state: %r: %r", state, error)
482
226
self.add()
483
227
def activate(self):
484
228
"""Derived from the Avahi example code"""
485
229
if self.server is None:
486
230
self.server = dbus.Interface(
487
231
self.bus.get_object(avahi.DBUS_NAME,
488
avahi.DBUS_PATH_SERVER,
489
follow_name_owner_changes=True),
232
avahi.DBUS_PATH_SERVER),
490
233
avahi.DBUS_INTERFACE_SERVER)
491
self.server.connect_to_signal("StateChanged",
492
self.server_state_changed)
234
self.server.connect_to_signal(u"StateChanged",
235
self.server_state_changed)
493
236
self.server_state_changed(self.server.GetState())
494
237
495
238
496
class AvahiServiceToSyslog(AvahiService):
497
def rename(self, *args, **kwargs):
498
"""Add the new name to the syslog messages"""
499
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
500
syslogger.setFormatter(logging.Formatter(
501
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
502
.format(self.name)))
503
return ret
504
505
506
# Pretend that we have a GnuTLS module
507
class GnuTLS(object):
508
"""This isn't so much a class as it is a module-like namespace.
509
It is instantiated once, and simulates having a GnuTLS module."""
510
511
library = ctypes.util.find_library("gnutls")
512
if library is None:
513
library = ctypes.util.find_library("gnutls-deb0")
514
_library = ctypes.cdll.LoadLibrary(library)
515
del library
516
_need_version = b"3.3.0"
517
518
def __init__(self):
519
# Need to use "self" here, since this method is called before
520
# the assignment to the "gnutls" global variable happens.
521
if self.check_version(self._need_version) is None:
522
raise self.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
243
_approved: bool(); 'None' if not yet approved/disapproved
785
244
approval_delay: datetime.timedelta(); Time to wait for approval
786
245
approval_duration: datetime.timedelta(); Duration of one approval
787
246
checker: subprocess.Popen(); a running checker process used
788
247
to see if the client lives.
789
248
'None' if no process is running.
790
checker_callback_tag: a GLib event source tag, or None
249
checker_callback_tag: a gobject event source tag, or None
791
250
checker_command: string; External command which is run to check
792
251
if client lives. %() expansions are done at
793
252
runtime with vars(self) as dict, so that for
794
253
instance %(name)s can be used in the command.
795
checker_initiator_tag: a GLib event source tag, or None
254
checker_initiator_tag: a gobject event source tag, or None
796
255
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
256
current_checker_command: string; current running checker_command
800
disable_initiator_tag: a GLib event source tag, or None
257
disable_hook: If set, called by disable() as disable_hook(self)
258
disable_initiator_tag: a gobject event source tag, or None
801
259
enabled: bool()
802
260
fingerprint: string (40 or 32 hexadecimal digits); used to
803
261
uniquely identify the client
805
263
interval: datetime.timedelta(); How often to start a new checker
806
264
last_approval_request: datetime.datetime(); (UTC) or None
807
265
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
266
last_enabled: datetime.datetime(); (UTC)
814
267
name: string; from the config file, used in log messages and
815
268
D-Bus identifiers
816
269
secret: bytestring; sent verbatim (over TLS) to client
817
270
timeout: datetime.timedelta(); How long from last_checked_ok
818
271
until this client is disabled
819
extended_timeout: extra long timeout when secret has been sent
820
272
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()
824
273
"""
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
274
275
runtime_expansions = (u"approval_delay", u"approval_duration",
276
u"created", u"enabled", u"fingerprint",
277
u"host", u"interval", u"last_checked_ok",
278
u"last_enabled", u"name", u"timeout")
279
843
280
@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):
281
def _timedelta_to_milliseconds(td):
282
"Convert a datetime.timedelta() to milliseconds"
283
return ((td.days * 24 * 60 * 60 * 1000)
284
+ (td.seconds * 1000)
285
+ (td.microseconds // 1000))
286
287
def timeout_milliseconds(self):
288
"Return the 'timeout' attribute in milliseconds"
289
return self._timedelta_to_milliseconds(self.timeout)
290
291
def interval_milliseconds(self):
292
"Return the 'interval' attribute in milliseconds"
293
return self._timedelta_to_milliseconds(self.interval)
294
295
def approval_delay_milliseconds(self):
296
return self._timedelta_to_milliseconds(self.approval_delay)
297
298
def __init__(self, name = None, disable_hook=None, config=None):
299
"""Note: the 'checker' key in 'config' sets the
300
'checker_command' attribute and *not* the 'checker'
301
attribute."""
896
302
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)
303
if config is None:
304
config = {}
305
logger.debug(u"Creating client %r", self.name)
306
# Uppercase and remove spaces from fingerprint for later
307
# comparison purposes with return value from the fingerprint()
308
# function
309
self.fingerprint = (config[u"fingerprint"].upper()
310
.replace(u" ", u""))
311
logger.debug(u" Fingerprint: %s", self.fingerprint)
312
if u"secret" in config:
313
self.secret = config[u"secret"].decode(u"base64")
314
elif u"secfile" in config:
315
with open(os.path.expanduser(os.path.expandvars
316
(config[u"secfile"])),
317
"rb") as secfile:
318
self.secret = secfile.read()
910
319
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
320
raise TypeError(u"No secret or secfile for client %s"
321
% self.name)
322
self.host = config.get(u"host", u"")
323
self.created = datetime.datetime.utcnow()
324
self.enabled = False
325
self.last_approval_request = None
326
self.last_enabled = None
327
self.last_checked_ok = None
328
self.timeout = string_to_delta(config[u"timeout"])
329
self.interval = string_to_delta(config[u"interval"])
330
self.disable_hook = disable_hook
920
331
self.checker = None
921
332
self.checker_initiator_tag = None
922
333
self.disable_initiator_tag = None
923
334
self.checker_callback_tag = None
335
self.checker_command = config[u"checker"]
924
336
self.current_checker_command = None
925
self.approved = None
337
self.last_connect = None
338
self._approved = None
339
self.approved_by_default = config.get(u"approved_by_default",
340
True)
926
341
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
342
self.approval_delay = string_to_delta(
343
config[u"approval_delay"])
344
self.approval_duration = string_to_delta(
345
config[u"approval_duration"])
346
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
347
940
348
def send_changedstate(self):
941
with self.changedstate:
942
self.changedstate.notify_all()
943
349
self.changedstate.acquire()
350
self.changedstate.notify_all()
351
self.changedstate.release()
352
944
353
def enable(self):
945
354
"""Start this client's checker and timeout hooks"""
946
if getattr(self, "enabled", False):
355
if getattr(self, u"enabled", False):
947
356
# Already enabled
948
357
return
949
self.expires = datetime.datetime.utcnow() + self.timeout
950
self.enabled = True
358
self.send_changedstate()
951
359
self.last_enabled = datetime.datetime.utcnow()
952
self.init_checker()
953
self.send_changedstate()
954
360
# Schedule a new checker to be started an 'interval' from now,
361
# and every interval from then on.
362
self.checker_initiator_tag = (gobject.timeout_add
363
(self.interval_milliseconds(),
364
self.start_checker))
365
# Schedule a disable() when 'timeout' has passed
366
self.disable_initiator_tag = (gobject.timeout_add
367
(self.timeout_milliseconds(),
368
self.disable))
369
self.enabled = True
370
# Also start a new checker *right now*.
371
self.start_checker()
372
955
373
def disable(self, quiet=True):
956
374
"""Disable this client."""
957
375
if not getattr(self, "enabled", False):
958
376
return False
959
377
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)
378
self.send_changedstate()
379
if not quiet:
380
logger.info(u"Disabling client %s", self.name)
381
if getattr(self, u"disable_initiator_tag", False):
382
gobject.source_remove(self.disable_initiator_tag)
963
383
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)
384
if getattr(self, u"checker_initiator_tag", False):
385
gobject.source_remove(self.checker_initiator_tag)
967
386
self.checker_initiator_tag = None
968
387
self.stop_checker()
388
if self.disable_hook:
389
self.disable_hook(self)
969
390
self.enabled = False
970
if not quiet:
971
self.send_changedstate()
972
# Do not run this again if called by a GLib.timeout_add
391
# Do not run this again if called by a gobject.timeout_add
973
392
return False
974
393
975
394
def __del__(self):
395
self.disable_hook = None
976
396
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):
397
398
def checker_callback(self, pid, condition, command):
996
399
"""The checker has completed, so take appropriate actions."""
997
400
self.checker_callback_tag = None
998
401
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",
402
if os.WIFEXITED(condition):
403
exitstatus = os.WEXITSTATUS(condition)
404
if exitstatus == 0:
405
logger.info(u"Checker for %(name)s succeeded",
1008
406
vars(self))
1009
407
self.checked_ok()
1010
408
else:
1011
logger.info("Checker for %(name)s failed", vars(self))
409
logger.info(u"Checker for %(name)s failed",
410
vars(self))
1012
411
else:
1013
self.last_checker_status = -1
1014
self.last_checker_signal = -returncode
1015
logger.warning("Checker for %(name)s crashed?",
412
logger.warning(u"Checker for %(name)s crashed?",
1016
413
vars(self))
1017
return False
1018
414
1019
415
def checked_ok(self):
1020
"""Assert that the client has been seen, alive and well."""
416
"""Bump up the timeout for this client.
417
418
This should only be called when the client has been seen,
419
alive and well.
420
"""
1021
421
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
422
gobject.source_remove(self.disable_initiator_tag)
423
self.disable_initiator_tag = (gobject.timeout_add
424
(self.timeout_milliseconds(),
425
self.disable))
426
1038
427
def need_approval(self):
1039
428
self.last_approval_request = datetime.datetime.utcnow()
1040
429
1041
430
def start_checker(self):
1042
431
"""Start a new checker subprocess if one is not running.
1043
432
1044
433
If a checker already exists, leave it running and do
1045
434
nothing."""
1046
435
# 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
436
# did that, then if a checker (for some reason) started
437
# running slowly and taking more than 'interval' time, the
438
# client would inevitably timeout, since no checker would get
439
# a chance to run to completion. If we instead leave running
1051
440
# checkers alone, the checker would have to take more time
1052
441
# than 'timeout' for the client to be disabled, which is as it
1053
442
# 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
443
444
# If a checker exists, make sure it is not a zombie
445
try:
446
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
447
except (AttributeError, OSError), error:
448
if (isinstance(error, OSError)
449
and error.errno != errno.ECHILD):
450
raise error
451
else:
452
if pid:
453
logger.warning(u"Checker was a zombie")
454
gobject.source_remove(self.checker_callback_tag)
455
self.checker_callback(pid, status,
456
self.current_checker_command)
1059
457
# Start a new checker if needed
1060
458
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
459
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
460
# In case checker_command has exactly one % operator
461
command = self.checker_command % self.host
462
except TypeError:
463
# Escape attributes for the shell
464
escaped_attrs = dict(
465
(attr,
466
re.escape(unicode(str(getattr(self, attr, u"")),
467
errors=
468
u'replace')))
469
for attr in
470
self.runtime_expansions)
471
472
try:
473
command = self.checker_command % escaped_attrs
474
except TypeError, error:
475
logger.error(u'Could not format string "%s":'
476
u' %s', self.checker_command, error)
477
return True # Try again later
1072
478
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
479
try:
480
logger.info(u"Starting checker %r for %s",
481
command, self.name)
482
# We don't need to redirect stdout and stderr, since
483
# in normal mode, that is already done by daemon(),
484
# and in debug mode we don't want to. (Stdin is
485
# always replaced by /dev/null.)
486
self.checker = subprocess.Popen(command,
487
close_fds=True,
488
shell=True, cwd=u"/")
489
self.checker_callback_tag = (gobject.child_watch_add
490
(self.checker.pid,
491
self.checker_callback,
492
data=command))
493
# The checker may have completed before the gobject
494
# watch was added. Check for this.
495
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
496
if pid:
497
gobject.source_remove(self.checker_callback_tag)
498
self.checker_callback(pid, status, command)
499
except OSError, error:
500
logger.error(u"Failed to start subprocess: %s",
501
error)
502
# Re-run this periodically if run by gobject.timeout_add
1099
503
return True
1100
504
1101
505
def stop_checker(self):
1102
506
"""Force the checker process, if any, to stop."""
1103
507
if self.checker_callback_tag:
1104
GLib.source_remove(self.checker_callback_tag)
508
gobject.source_remove(self.checker_callback_tag)
1105
509
self.checker_callback_tag = None
1106
if getattr(self, "checker", None) is None:
510
if getattr(self, u"checker", None) is None:
1107
511
return
1108
logger.debug("Stopping checker for %(name)s", vars(self))
1109
self.checker.terminate()
512
logger.debug(u"Stopping checker for %(name)s", vars(self))
513
try:
514
os.kill(self.checker.pid, signal.SIGTERM)
515
#time.sleep(0.5)
516
#if self.checker.poll() is None:
517
# os.kill(self.checker.pid, signal.SIGKILL)
518
except OSError, error:
519
if error.errno != errno.ESRCH: # No such process
520
raise
1110
521
self.checker = None
1111
522
1112
1113
def dbus_service_property(dbus_interface,
1114
signature="v",
1115
access="readwrite",
1116
byte_arrays=False):
523
def dbus_service_property(dbus_interface, signature=u"v",
524
access=u"readwrite", byte_arrays=False):
1117
525
"""Decorators for marking methods of a DBusObjectWithProperties to
1118
526
become properties on the D-Bus.
1119
527
1120
528
The decorated method will be called with no arguments by "Get"
1121
529
and with one argument by "Set".
1122
530
1123
531
The parameters, where they are supported, are the same as
1124
532
dbus.service.method, except there is only "signature", since the
1125
533
type from Get() and the type sent to Set() is the same.
1126
534
"""
1127
535
# Encoding deeply encoded byte arrays is not supported yet by the
1128
536
# "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
537
if byte_arrays and signature != u"ay":
538
raise ValueError(u"Byte arrays not supported for non-'ay'"
539
u" signature %r" % signature)
1133
540
def decorator(func):
1134
541
func._dbus_is_property = True
1135
542
func._dbus_interface = dbus_interface
1136
543
func._dbus_signature = signature
1137
544
func._dbus_access = access
1138
545
func._dbus_name = func.__name__
1139
if func._dbus_name.endswith("_dbus_property"):
546
if func._dbus_name.endswith(u"_dbus_property"):
1140
547
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
548
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
549
return func
1187
550
return decorator
1188
551
1189
552
1190
553
class DBusPropertyException(dbus.exceptions.DBusException):
1191
554
"""A base class for D-Bus property-related exceptions
1192
555
"""
1193
pass
556
def __unicode__(self):
557
return unicode(str(self))
1194
558
1195
559
1196
560
class DBusPropertyAccessException(DBusPropertyException):
1205
569
pass
1206
570
1207
571
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):
572
class DBusObjectWithProperties(dbus.service.Object):
1298
573
"""A D-Bus object with properties.
1299
574
1300
575
Classes inheriting from this can use the dbus_service_property
1301
576
decorator to expose methods as D-Bus properties. It exposes the
1302
577
standard Get(), Set(), and GetAll() methods on the D-Bus.
1303
578
"""
1304
579
580
@staticmethod
581
def _is_dbus_property(obj):
582
return getattr(obj, u"_dbus_is_property", False)
583
584
def _get_all_dbus_properties(self):
585
"""Returns a generator of (name, attribute) pairs
586
"""
587
return ((prop._dbus_name, prop)
588
for name, prop in
589
inspect.getmembers(self, self._is_dbus_property))
590
1305
591
def _get_dbus_property(self, interface_name, property_name):
1306
592
"""Returns a bound method if one exists which is a D-Bus
1307
593
property with the specified name and interface.
1308
594
"""
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
595
for name in (property_name,
596
property_name + u"_dbus_property"):
597
prop = getattr(self, name, None)
598
if (prop is None
599
or not self._is_dbus_property(prop)
600
or prop._dbus_name != property_name
601
or (interface_name and prop._dbus_interface
602
and interface_name != prop._dbus_interface)):
603
continue
604
return prop
1316
605
# 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")
606
raise DBusPropertyNotFound(self.dbus_object_path + u":"
607
+ interface_name + u"."
608
+ property_name)
609
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
611
out_signature=u"v")
1332
612
def Get(self, interface_name, property_name):
1333
613
"""Standard D-Bus property Get() method, see D-Bus standard.
1334
614
"""
1335
615
prop = self._get_dbus_property(interface_name, property_name)
1336
if prop._dbus_access == "write":
616
if prop._dbus_access == u"write":
1337
617
raise DBusPropertyAccessException(property_name)
1338
618
value = prop()
1339
if not hasattr(value, "variant_level"):
619
if not hasattr(value, u"variant_level"):
1340
620
return value
1341
621
return type(value)(value, variant_level=value.variant_level+1)
1342
1343
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
622
623
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
1344
624
def Set(self, interface_name, property_name, value):
1345
625
"""Standard D-Bus property Set() method, see D-Bus standard.
1346
626
"""
1347
627
prop = self._get_dbus_property(interface_name, property_name)
1348
if prop._dbus_access == "read":
628
if prop._dbus_access == u"read":
1349
629
raise DBusPropertyAccessException(property_name)
1350
if prop._dbus_get_args_options["byte_arrays"]:
630
if prop._dbus_get_args_options[u"byte_arrays"]:
1351
631
# The byte_arrays option is not supported yet on
1352
632
# 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))
633
if prop._dbus_signature != u"ay":
634
raise ValueError
635
value = dbus.ByteArray(''.join(unichr(byte)
636
for byte in value))
1359
637
prop(value)
1360
1361
@dbus.service.method(dbus.PROPERTIES_IFACE,
1362
in_signature="s",
1363
out_signature="a{sv}")
638
639
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
640
out_signature=u"a{sv}")
1364
641
def GetAll(self, interface_name):
1365
642
"""Standard D-Bus property GetAll() method, see D-Bus
1366
643
standard.
1367
644
1368
645
Note: Will not include properties with access="write".
1369
646
"""
1370
properties = {}
1371
for name, prop in self._get_all_dbus_things("property"):
647
all = {}
648
for name, prop in self._get_all_dbus_properties():
1372
649
if (interface_name
1373
650
and interface_name != prop._dbus_interface):
1374
651
# Interface non-empty but did not match
1375
652
continue
1376
653
# Ignore write-only properties
1377
if prop._dbus_access == "write":
654
if prop._dbus_access == u"write":
1378
655
continue
1379
656
value = prop()
1380
if not hasattr(value, "variant_level"):
1381
properties[name] = value
657
if not hasattr(value, u"variant_level"):
658
all[name] = value
1382
659
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
660
all[name] = type(value)(value, variant_level=
661
value.variant_level+1)
662
return dbus.Dictionary(all, signature=u"sv")
663
1395
664
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1396
out_signature="s",
665
out_signature=u"s",
1397
666
path_keyword='object_path',
1398
667
connection_keyword='connection')
1399
668
def Introspect(self, object_path, connection):
1400
"""Overloading of standard D-Bus method.
1401
1402
Inserts property tags and interface annotation tags.
669
"""Standard D-Bus method, overloaded to insert property tags.
1403
670
"""
1404
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1405
object_path,
1406
connection)
671
xmlstring = dbus.service.Object.Introspect(self, object_path,
672
connection)
1407
673
try:
1408
674
document = xml.dom.minidom.parseString(xmlstring)
1409
1410
675
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)
676
e = document.createElement(u"property")
677
e.setAttribute(u"name", name)
678
e.setAttribute(u"type", prop._dbus_signature)
679
e.setAttribute(u"access", prop._dbus_access)
1415
680
return e
1416
1417
for if_tag in document.getElementsByTagName("interface"):
1418
# Add property tags
681
for if_tag in document.getElementsByTagName(u"interface"):
1419
682
for tag in (make_tag(document, name, prop)
1420
683
for name, prop
1421
in self._get_all_dbus_things("property")
684
in self._get_all_dbus_properties()
1422
685
if prop._dbus_interface
1423
== if_tag.getAttribute("name")):
686
== if_tag.getAttribute(u"name")):
1424
687
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
688
# Add the names to the return values for the
1442
689
# "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
1465
try:
1466
dbus.OBJECT_MANAGER_IFACE
1467
except AttributeError:
1468
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1469
1470
1471
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1472
"""A D-Bus object with an ObjectManager.
1473
1474
Classes inheriting from this exposes the standard
1475
GetManagedObjects call and the InterfacesAdded and
1476
InterfacesRemoved signals on the standard
1477
"org.freedesktop.DBus.ObjectManager" interface.
1478
1479
Note: No signals are sent automatically; they must be sent
1480
manually.
1481
"""
1482
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1483
out_signature="a{oa{sa{sv}}}")
1484
def GetManagedObjects(self):
1485
"""This function must be overridden"""
1486
raise NotImplementedError()
1487
1488
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1489
signature="oa{sa{sv}}")
1490
def InterfacesAdded(self, object_path, interfaces_and_properties):
1491
pass
1492
1493
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1494
def InterfacesRemoved(self, object_path, interfaces):
1495
pass
1496
1497
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1498
out_signature="s",
1499
path_keyword='object_path',
1500
connection_keyword='connection')
1501
def Introspect(self, object_path, connection):
1502
"""Overloading of standard D-Bus method.
1503
1504
Override return argument name of GetManagedObjects to be
1505
"objpath_interfaces_and_properties"
1506
"""
1507
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1508
object_path,
1509
connection)
1510
try:
1511
document = xml.dom.minidom.parseString(xmlstring)
1512
1513
for if_tag in document.getElementsByTagName("interface"):
1514
# Fix argument name for the GetManagedObjects method
1515
if (if_tag.getAttribute("name")
1516
== dbus.OBJECT_MANAGER_IFACE):
1517
for cn in if_tag.getElementsByTagName("method"):
1518
if (cn.getAttribute("name")
1519
== "GetManagedObjects"):
1520
for arg in cn.getElementsByTagName("arg"):
1521
if (arg.getAttribute("direction")
1522
== "out"):
1523
arg.setAttribute(
1524
"name",
1525
"objpath_interfaces"
1526
"_and_properties")
1527
xmlstring = document.toxml("utf-8")
1528
document.unlink()
1529
except (AttributeError, xml.dom.DOMException,
1530
xml.parsers.expat.ExpatError) as error:
1531
logger.error("Failed to override Introspection method",
1532
exc_info=error)
1533
return xmlstring
1534
1535
1536
def datetime_to_dbus(dt, variant_level=0):
1537
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1538
if dt is None:
1539
return dbus.String("", variant_level=variant_level)
1540
return dbus.String(dt.isoformat(), variant_level=variant_level)
1541
1542
1543
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1544
"""A class decorator; applied to a subclass of
1545
dbus.service.Object, it will add alternate D-Bus attributes with
1546
interface names according to the "alt_interface_names" mapping.
1547
Usage:
1548
1549
@alternate_dbus_interfaces({"org.example.Interface":
1550
"net.example.AlternateInterface"})
1551
class SampleDBusObject(dbus.service.Object):
1552
@dbus.service.method("org.example.Interface")
1553
def SampleDBusMethod():
1554
pass
1555
1556
The above "SampleDBusMethod" on "SampleDBusObject" will be
1557
reachable via two interfaces: "org.example.Interface" and
1558
"net.example.AlternateInterface", the latter of which will have
1559
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1560
"true", unless "deprecate" is passed with a False value.
1561
1562
This works for methods and signals, and also for D-Bus properties
1563
(from DBusObjectWithProperties) and interfaces (from the
1564
dbus_interface_annotations decorator).
1565
"""
1566
1567
def wrapper(cls):
1568
for orig_interface_name, alt_interface_name in (
1569
alt_interface_names.items()):
1570
attr = {}
1571
interface_names = set()
1572
# Go though all attributes of the class
1573
for attrname, attribute in inspect.getmembers(cls):
1574
# Ignore non-D-Bus attributes, and D-Bus attributes
1575
# with the wrong interface name
1576
if (not hasattr(attribute, "_dbus_interface")
1577
or not attribute._dbus_interface.startswith(
1578
orig_interface_name)):
1579
continue
1580
# Create an alternate D-Bus interface name based on
1581
# the current name
1582
alt_interface = attribute._dbus_interface.replace(
1583
orig_interface_name, alt_interface_name)
1584
interface_names.add(alt_interface)
1585
# Is this a D-Bus signal?
1586
if getattr(attribute, "_dbus_is_signal", False):
1587
# Extract the original non-method undecorated
1588
# function by black magic
1589
if sys.version_info.major == 2:
1590
nonmethod_func = (dict(
1591
zip(attribute.func_code.co_freevars,
1592
attribute.__closure__))
1593
["func"].cell_contents)
1594
else:
1595
nonmethod_func = (dict(
1596
zip(attribute.__code__.co_freevars,
1597
attribute.__closure__))
1598
["func"].cell_contents)
1599
# Create a new, but exactly alike, function
1600
# object, and decorate it to be a new D-Bus signal
1601
# with the alternate D-Bus interface name
1602
new_function = copy_function(nonmethod_func)
1603
new_function = (dbus.service.signal(
1604
alt_interface,
1605
attribute._dbus_signature)(new_function))
1606
# Copy annotations, if any
1607
try:
1608
new_function._dbus_annotations = dict(
1609
attribute._dbus_annotations)
1610
except AttributeError:
1611
pass
1612
1613
# Define a creator of a function to call both the
1614
# original and alternate functions, so both the
1615
# original and alternate signals gets sent when
1616
# the function is called
1617
def fixscope(func1, func2):
1618
"""This function is a scope container to pass
1619
func1 and func2 to the "call_both" function
1620
outside of its arguments"""
1621
1622
@functools.wraps(func2)
1623
def call_both(*args, **kwargs):
1624
"""This function will emit two D-Bus
1625
signals by calling func1 and func2"""
1626
func1(*args, **kwargs)
1627
func2(*args, **kwargs)
1628
# Make wrapper function look like a D-Bus
1629
# signal
1630
for name, attr in inspect.getmembers(func2):
1631
if name.startswith("_dbus_"):
1632
setattr(call_both, name, attr)
1633
1634
return call_both
1635
# Create the "call_both" function and add it to
1636
# the class
1637
attr[attrname] = fixscope(attribute, new_function)
1638
# Is this a D-Bus method?
1639
elif getattr(attribute, "_dbus_is_method", False):
1640
# Create a new, but exactly alike, function
1641
# object. Decorate it to be a new D-Bus method
1642
# with the alternate D-Bus interface name. Add it
1643
# to the class.
1644
attr[attrname] = (
1645
dbus.service.method(
1646
alt_interface,
1647
attribute._dbus_in_signature,
1648
attribute._dbus_out_signature)
1649
(copy_function(attribute)))
1650
# Copy annotations, if any
1651
try:
1652
attr[attrname]._dbus_annotations = dict(
1653
attribute._dbus_annotations)
1654
except AttributeError:
1655
pass
1656
# Is this a D-Bus property?
1657
elif getattr(attribute, "_dbus_is_property", False):
1658
# Create a new, but exactly alike, function
1659
# object, and decorate it to be a new D-Bus
1660
# property with the alternate D-Bus interface
1661
# name. Add it to the class.
1662
attr[attrname] = (dbus_service_property(
1663
alt_interface, attribute._dbus_signature,
1664
attribute._dbus_access,
1665
attribute._dbus_get_args_options
1666
["byte_arrays"])
1667
(copy_function(attribute)))
1668
# Copy annotations, if any
1669
try:
1670
attr[attrname]._dbus_annotations = dict(
1671
attribute._dbus_annotations)
1672
except AttributeError:
1673
pass
1674
# Is this a D-Bus interface?
1675
elif getattr(attribute, "_dbus_is_interface", False):
1676
# Create a new, but exactly alike, function
1677
# object. Decorate it to be a new D-Bus interface
1678
# with the alternate D-Bus interface name. Add it
1679
# to the class.
1680
attr[attrname] = (
1681
dbus_interface_annotations(alt_interface)
1682
(copy_function(attribute)))
1683
if deprecate:
1684
# Deprecate all alternate interfaces
1685
iname = "_AlternateDBusNames_interface_annotation{}"
1686
for interface_name in interface_names:
1687
1688
@dbus_interface_annotations(interface_name)
1689
def func(self):
1690
return {"org.freedesktop.DBus.Deprecated":
1691
"true"}
1692
# Find an unused name
1693
for aname in (iname.format(i)
1694
for i in itertools.count()):
1695
if aname not in attr:
1696
attr[aname] = func
1697
break
1698
if interface_names:
1699
# Replace the class with a new subclass of it with
1700
# methods, signals, etc. as created above.
1701
if sys.version_info.major == 2:
1702
cls = type(b"{}Alternate".format(cls.__name__),
1703
(cls, ), attr)
1704
else:
1705
cls = type("{}Alternate".format(cls.__name__),
1706
(cls, ), attr)
1707
return cls
1708
1709
return wrapper
1710
1711
1712
@alternate_dbus_interfaces({"se.recompile.Mandos":
1713
"se.bsnet.fukt.Mandos"})
690
if (if_tag.getAttribute(u"name")
691
== u"org.freedesktop.DBus.Properties"):
692
for cn in if_tag.getElementsByTagName(u"method"):
693
if cn.getAttribute(u"name") == u"Get":
694
for arg in cn.getElementsByTagName(u"arg"):
695
if (arg.getAttribute(u"direction")
696
== u"out"):
697
arg.setAttribute(u"name", u"value")
698
elif cn.getAttribute(u"name") == u"GetAll":
699
for arg in cn.getElementsByTagName(u"arg"):
700
if (arg.getAttribute(u"direction")
701
== u"out"):
702
arg.setAttribute(u"name", u"props")
703
xmlstring = document.toxml(u"utf-8")
704
document.unlink()
705
except (AttributeError, xml.dom.DOMException,
706
xml.parsers.expat.ExpatError), error:
707
logger.error(u"Failed to override Introspection method",
708
error)
709
return xmlstring
710
711
1714
712
class ClientDBus(Client, DBusObjectWithProperties):
1715
713
"""A Client class using D-Bus
1716
714
1717
715
Attributes:
1718
716
dbus_object_path: dbus.ObjectPath
1719
717
bus: dbus.SystemBus()
1720
718
"""
1721
719
1722
720
runtime_expansions = (Client.runtime_expansions
1723
+ ("dbus_object_path", ))
1724
1725
_interface = "se.recompile.Mandos.Client"
1726
721
+ (u"dbus_object_path",))
722
1727
723
# dbus.service.Object doesn't use super(), so we can't either.
1728
1729
def __init__(self, bus=None, *args, **kwargs):
724
725
def __init__(self, bus = None, *args, **kwargs):
726
self._approvals_pending = 0
1730
727
self.bus = bus
1731
728
Client.__init__(self, *args, **kwargs)
1732
729
# Only now, when this client is initialized, can it show up on
1733
730
# the D-Bus
1734
client_object_name = str(self.name).translate(
1735
{ord("."): ord("_"),
1736
ord("-"): ord("_")})
1737
self.dbus_object_path = dbus.ObjectPath(
1738
"/clients/" + client_object_name)
731
client_object_name = unicode(self.name).translate(
732
{ord(u"."): ord(u"_"),
733
ord(u"-"): ord(u"_")})
734
self.dbus_object_path = (dbus.ObjectPath
735
(u"/clients/" + client_object_name))
1739
736
DBusObjectWithProperties.__init__(self, self.bus,
1740
737
self.dbus_object_path)
1741
1742
def notifychangeproperty(transform_func, dbus_name,
1743
type_func=lambda x: x,
1744
variant_level=1,
1745
invalidate_only=False,
1746
_interface=_interface):
1747
""" Modify a variable so that it's a property which announces
1748
its changes to DBus.
1749
1750
transform_fun: Function that takes a value and a variant_level
1751
and transforms it to a D-Bus type.
1752
dbus_name: D-Bus name of the variable
1753
type_func: Function that transform the value before sending it
1754
to the D-Bus. Default: no transform
1755
variant_level: D-Bus variant level. Default: 1
1756
"""
1757
attrname = "_{}".format(dbus_name)
1758
1759
def setter(self, value):
1760
if hasattr(self, "dbus_object_path"):
1761
if (not hasattr(self, attrname) or
1762
type_func(getattr(self, attrname, None))
1763
!= type_func(value)):
1764
if invalidate_only:
1765
self.PropertiesChanged(
1766
_interface, dbus.Dictionary(),
1767
dbus.Array((dbus_name, )))
1768
else:
1769
dbus_value = transform_func(
1770
type_func(value),
1771
variant_level=variant_level)
1772
self.PropertyChanged(dbus.String(dbus_name),
1773
dbus_value)
1774
self.PropertiesChanged(
1775
_interface,
1776
dbus.Dictionary({dbus.String(dbus_name):
1777
dbus_value}),
1778
dbus.Array())
1779
setattr(self, attrname, value)
1780
1781
return property(lambda self: getattr(self, attrname), setter)
1782
1783
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1784
approvals_pending = notifychangeproperty(dbus.Boolean,
1785
"ApprovalPending",
1786
type_func=bool)
1787
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1788
last_enabled = notifychangeproperty(datetime_to_dbus,
1789
"LastEnabled")
1790
checker = notifychangeproperty(
1791
dbus.Boolean, "CheckerRunning",
1792
type_func=lambda checker: checker is not None)
1793
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1794
"LastCheckedOK")
1795
last_checker_status = notifychangeproperty(dbus.Int16,
1796
"LastCheckerStatus")
1797
last_approval_request = notifychangeproperty(
1798
datetime_to_dbus, "LastApprovalRequest")
1799
approved_by_default = notifychangeproperty(dbus.Boolean,
1800
"ApprovedByDefault")
1801
approval_delay = notifychangeproperty(
1802
dbus.UInt64, "ApprovalDelay",
1803
type_func=lambda td: td.total_seconds() * 1000)
1804
approval_duration = notifychangeproperty(
1805
dbus.UInt64, "ApprovalDuration",
1806
type_func=lambda td: td.total_seconds() * 1000)
1807
host = notifychangeproperty(dbus.String, "Host")
1808
timeout = notifychangeproperty(
1809
dbus.UInt64, "Timeout",
1810
type_func=lambda td: td.total_seconds() * 1000)
1811
extended_timeout = notifychangeproperty(
1812
dbus.UInt64, "ExtendedTimeout",
1813
type_func=lambda td: td.total_seconds() * 1000)
1814
interval = notifychangeproperty(
1815
dbus.UInt64, "Interval",
1816
type_func=lambda td: td.total_seconds() * 1000)
1817
checker_command = notifychangeproperty(dbus.String, "Checker")
1818
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1819
invalidate_only=True)
1820
1821
del notifychangeproperty
1822
738
739
def _get_approvals_pending(self):
740
return self._approvals_pending
741
def _set_approvals_pending(self, value):
742
old_value = self._approvals_pending
743
self._approvals_pending = value
744
bval = bool(value)
745
if (hasattr(self, "dbus_object_path")
746
and bval is not bool(old_value)):
747
dbus_bool = dbus.Boolean(bval, variant_level=1)
748
self.PropertyChanged(dbus.String(u"ApprovalPending"),
749
dbus_bool)
750
751
approvals_pending = property(_get_approvals_pending,
752
_set_approvals_pending)
753
del _get_approvals_pending, _set_approvals_pending
754
755
@staticmethod
756
def _datetime_to_dbus(dt, variant_level=0):
757
"""Convert a UTC datetime.datetime() to a D-Bus type."""
758
return dbus.String(dt.isoformat(),
759
variant_level=variant_level)
760
761
def enable(self):
762
oldstate = getattr(self, u"enabled", False)
763
r = Client.enable(self)
764
if oldstate != self.enabled:
765
# Emit D-Bus signals
766
self.PropertyChanged(dbus.String(u"Enabled"),
767
dbus.Boolean(True, variant_level=1))
768
self.PropertyChanged(
769
dbus.String(u"LastEnabled"),
770
self._datetime_to_dbus(self.last_enabled,
771
variant_level=1))
772
return r
773
774
def disable(self, quiet = False):
775
oldstate = getattr(self, u"enabled", False)
776
r = Client.disable(self, quiet=quiet)
777
if not quiet and oldstate != self.enabled:
778
# Emit D-Bus signal
779
self.PropertyChanged(dbus.String(u"Enabled"),
780
dbus.Boolean(False, variant_level=1))
781
return r
782
1823
783
def __del__(self, *args, **kwargs):
1824
784
try:
1825
785
self.remove_from_connection()
1826
786
except LookupError:
1827
787
pass
1828
if hasattr(DBusObjectWithProperties, "__del__"):
788
if hasattr(DBusObjectWithProperties, u"__del__"):
1829
789
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1830
790
Client.__del__(self, *args, **kwargs)
1831
1832
def checker_callback(self, source, condition,
1833
connection, command, *args, **kwargs):
1834
ret = Client.checker_callback(self, source, condition,
1835
connection, command, *args,
1836
**kwargs)
1837
exitstatus = self.last_checker_status
1838
if exitstatus >= 0:
791
792
def checker_callback(self, pid, condition, command,
793
*args, **kwargs):
794
self.checker_callback_tag = None
795
self.checker = None
796
# Emit D-Bus signal
797
self.PropertyChanged(dbus.String(u"CheckerRunning"),
798
dbus.Boolean(False, variant_level=1))
799
if os.WIFEXITED(condition):
800
exitstatus = os.WEXITSTATUS(condition)
1839
801
# Emit D-Bus signal
1840
802
self.CheckerCompleted(dbus.Int16(exitstatus),
1841
# This is specific to GNU libC
1842
dbus.Int64(exitstatus << 8),
803
dbus.Int64(condition),
1843
804
dbus.String(command))
1844
805
else:
1845
806
# Emit D-Bus signal
1846
807
self.CheckerCompleted(dbus.Int16(-1),
1847
dbus.Int64(
1848
# This is specific to GNU libC
1849
(exitstatus << 8)
1850
| self.last_checker_signal),
808
dbus.Int64(condition),
1851
809
dbus.String(command))
1852
return ret
1853
810
811
return Client.checker_callback(self, pid, condition, command,
812
*args, **kwargs)
813
814
def checked_ok(self, *args, **kwargs):
815
r = Client.checked_ok(self, *args, **kwargs)
816
# Emit D-Bus signal
817
self.PropertyChanged(
818
dbus.String(u"LastCheckedOK"),
819
(self._datetime_to_dbus(self.last_checked_ok,
820
variant_level=1)))
821
return r
822
823
def need_approval(self, *args, **kwargs):
824
r = Client.need_approval(self, *args, **kwargs)
825
# Emit D-Bus signal
826
self.PropertyChanged(
827
dbus.String(u"LastApprovalRequest"),
828
(self._datetime_to_dbus(self.last_approval_request,
829
variant_level=1)))
830
return r
831
1854
832
def start_checker(self, *args, **kwargs):
1855
old_checker_pid = getattr(self.checker, "pid", None)
833
old_checker = self.checker
834
if self.checker is not None:
835
old_checker_pid = self.checker.pid
836
else:
837
old_checker_pid = None
1856
838
r = Client.start_checker(self, *args, **kwargs)
1857
839
# Only if new checker process was started
1858
840
if (self.checker is not None
1859
841
and old_checker_pid != self.checker.pid):
1860
842
# Emit D-Bus signal
1861
843
self.CheckerStarted(self.current_checker_command)
844
self.PropertyChanged(
845
dbus.String(u"CheckerRunning"),
846
dbus.Boolean(True, variant_level=1))
847
return r
848
849
def stop_checker(self, *args, **kwargs):
850
old_checker = getattr(self, u"checker", None)
851
r = Client.stop_checker(self, *args, **kwargs)
852
if (old_checker is not None
853
and getattr(self, u"checker", None) is None):
854
self.PropertyChanged(dbus.String(u"CheckerRunning"),
855
dbus.Boolean(False, variant_level=1))
1862
856
return r
1863
857
1864
858
def _reset_approved(self):
1865
self.approved = None
859
self._approved = None
1866
860
return False
1867
861
1868
862
def approve(self, value=True):
1869
self.approved = value
1870
GLib.timeout_add(int(self.approval_duration.total_seconds()
1871
* 1000), self._reset_approved)
1872
863
self.send_changedstate()
1873
1874
# D-Bus methods, signals & properties
1875
1876
# Interfaces
1877
1878
# Signals
1879
864
self._approved = value
865
gobject.timeout_add(self._timedelta_to_milliseconds
866
(self.approval_duration),
867
self._reset_approved)
868
869
870
## D-Bus methods, signals & properties
871
_interface = u"se.bsnet.fukt.Mandos.Client"
872
873
## Signals
874
1880
875
# CheckerCompleted - signal
1881
@dbus.service.signal(_interface, signature="nxs")
876
@dbus.service.signal(_interface, signature=u"nxs")
1882
877
def CheckerCompleted(self, exitcode, waitstatus, command):
1883
878
"D-Bus signal"
1884
879
pass
1885
880
1886
881
# CheckerStarted - signal
1887
@dbus.service.signal(_interface, signature="s")
882
@dbus.service.signal(_interface, signature=u"s")
1888
883
def CheckerStarted(self, command):
1889
884
"D-Bus signal"
1890
885
pass
1891
886
1892
887
# PropertyChanged - signal
1893
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1894
@dbus.service.signal(_interface, signature="sv")
888
@dbus.service.signal(_interface, signature=u"sv")
1895
889
def PropertyChanged(self, property, value):
1896
890
"D-Bus signal"
1897
891
pass
1898
892
1899
893
# GotSecret - signal
1900
894
@dbus.service.signal(_interface)
1901
895
def GotSecret(self):
1904
898
server to mandos-client
1905
899
"""
1906
900
pass
1907
901
1908
902
# Rejected - signal
1909
@dbus.service.signal(_interface, signature="s")
903
@dbus.service.signal(_interface, signature=u"s")
1910
904
def Rejected(self, reason):
1911
905
"D-Bus signal"
1912
906
pass
1913
907
1914
908
# NeedApproval - signal
1915
@dbus.service.signal(_interface, signature="tb")
909
@dbus.service.signal(_interface, signature=u"tb")
1916
910
def NeedApproval(self, timeout, default):
1917
911
"D-Bus signal"
1918
912
return self.need_approval()
1919
1920
# Methods
1921
913
914
## Methods
915
1922
916
# Approve - method
1923
@dbus.service.method(_interface, in_signature="b")
917
@dbus.service.method(_interface, in_signature=u"b")
1924
918
def Approve(self, value):
1925
919
self.approve(value)
1926
920
1927
921
# CheckedOK - method
1928
922
@dbus.service.method(_interface)
1929
923
def CheckedOK(self):
1930
self.checked_ok()
1931
924
return self.checked_ok()
925
1932
926
# Enable - method
1933
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1934
927
@dbus.service.method(_interface)
1935
928
def Enable(self):
1936
929
"D-Bus method"
1937
930
self.enable()
1938
931
1939
932
# StartChecker - method
1940
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1941
933
@dbus.service.method(_interface)
1942
934
def StartChecker(self):
1943
935
"D-Bus method"
1944
936
self.start_checker()
1945
937
1946
938
# Disable - method
1947
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1948
939
@dbus.service.method(_interface)
1949
940
def Disable(self):
1950
941
"D-Bus method"
1951
942
self.disable()
1952
943
1953
944
# StopChecker - method
1954
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1955
945
@dbus.service.method(_interface)
1956
946
def StopChecker(self):
1957
947
self.stop_checker()
1958
1959
# Properties
1960
948
949
## Properties
950
1961
951
# ApprovalPending - property
1962
@dbus_service_property(_interface, signature="b", access="read")
952
@dbus_service_property(_interface, signature=u"b", access=u"read")
1963
953
def ApprovalPending_dbus_property(self):
1964
954
return dbus.Boolean(bool(self.approvals_pending))
1965
955
1966
956
# ApprovedByDefault - property
1967
@dbus_service_property(_interface,
1968
signature="b",
1969
access="readwrite")
957
@dbus_service_property(_interface, signature=u"b",
958
access=u"readwrite")
1970
959
def ApprovedByDefault_dbus_property(self, value=None):
1971
960
if value is None: # get
1972
961
return dbus.Boolean(self.approved_by_default)
1973
962
self.approved_by_default = bool(value)
1974
963
# Emit D-Bus signal
964
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
965
dbus.Boolean(value, variant_level=1))
966
1975
967
# ApprovalDelay - property
1976
@dbus_service_property(_interface,
1977
signature="t",
1978
access="readwrite")
968
@dbus_service_property(_interface, signature=u"t",
969
access=u"readwrite")
1979
970
def ApprovalDelay_dbus_property(self, value=None):
1980
971
if value is None: # get
1981
return dbus.UInt64(self.approval_delay.total_seconds()
1982
* 1000)
972
return dbus.UInt64(self.approval_delay_milliseconds())
1983
973
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1984
974
# Emit D-Bus signal
975
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
976
dbus.UInt64(value, variant_level=1))
977
1985
978
# ApprovalDuration - property
1986
@dbus_service_property(_interface,
1987
signature="t",
1988
access="readwrite")
979
@dbus_service_property(_interface, signature=u"t",
980
access=u"readwrite")
1989
981
def ApprovalDuration_dbus_property(self, value=None):
1990
982
if value is None: # get
1991
return dbus.UInt64(self.approval_duration.total_seconds()
1992
* 1000)
983
return dbus.UInt64(self._timedelta_to_milliseconds(
984
self.approval_duration))
1993
985
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1994
986
# Emit D-Bus signal
987
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
988
dbus.UInt64(value, variant_level=1))
989
1995
990
# Name - property
1996
@dbus_annotations(
1997
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1998
@dbus_service_property(_interface, signature="s", access="read")
991
@dbus_service_property(_interface, signature=u"s", access=u"read")
1999
992
def Name_dbus_property(self):
2000
993
return dbus.String(self.name)
2001
994
2002
995
# Fingerprint - property
2003
@dbus_annotations(
2004
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2005
@dbus_service_property(_interface, signature="s", access="read")
996
@dbus_service_property(_interface, signature=u"s", access=u"read")
2006
997
def Fingerprint_dbus_property(self):
2007
998
return dbus.String(self.fingerprint)
2008
999
2009
1000
# Host - property
2010
@dbus_service_property(_interface,
2011
signature="s",
2012
access="readwrite")
1001
@dbus_service_property(_interface, signature=u"s",
1002
access=u"readwrite")
2013
1003
def Host_dbus_property(self, value=None):
2014
1004
if value is None: # get
2015
1005
return dbus.String(self.host)
2016
self.host = str(value)
2017
1006
self.host = value
1007
# Emit D-Bus signal
1008
self.PropertyChanged(dbus.String(u"Host"),
1009
dbus.String(value, variant_level=1))
1010
2018
1011
# Created - property
2019
@dbus_annotations(
2020
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2021
@dbus_service_property(_interface, signature="s", access="read")
1012
@dbus_service_property(_interface, signature=u"s", access=u"read")
2022
1013
def Created_dbus_property(self):
2023
return datetime_to_dbus(self.created)
2024
1014
return dbus.String(self._datetime_to_dbus(self.created))
1015
2025
1016
# LastEnabled - property
2026
@dbus_service_property(_interface, signature="s", access="read")
1017
@dbus_service_property(_interface, signature=u"s", access=u"read")
2027
1018
def LastEnabled_dbus_property(self):
2028
return datetime_to_dbus(self.last_enabled)
2029
1019
if self.last_enabled is None:
1020
return dbus.String(u"")
1021
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1022
2030
1023
# Enabled - property
2031
@dbus_service_property(_interface,
2032
signature="b",
2033
access="readwrite")
1024
@dbus_service_property(_interface, signature=u"b",
1025
access=u"readwrite")
2034
1026
def Enabled_dbus_property(self, value=None):
2035
1027
if value is None: # get
2036
1028
return dbus.Boolean(self.enabled)
2038
1030
self.enable()
2039
1031
else:
2040
1032
self.disable()
2041
1033
2042
1034
# LastCheckedOK - property
2043
@dbus_service_property(_interface,
2044
signature="s",
2045
access="readwrite")
1035
@dbus_service_property(_interface, signature=u"s",
1036
access=u"readwrite")
2046
1037
def LastCheckedOK_dbus_property(self, value=None):
2047
1038
if value is not None:
2048
1039
self.checked_ok()
2049
1040
return
2050
return datetime_to_dbus(self.last_checked_ok)
2051
2052
# LastCheckerStatus - property
2053
@dbus_service_property(_interface, signature="n", access="read")
2054
def LastCheckerStatus_dbus_property(self):
2055
return dbus.Int16(self.last_checker_status)
2056
2057
# Expires - property
2058
@dbus_service_property(_interface, signature="s", access="read")
2059
def Expires_dbus_property(self):
2060
return datetime_to_dbus(self.expires)
2061
1041
if self.last_checked_ok is None:
1042
return dbus.String(u"")
1043
return dbus.String(self._datetime_to_dbus(self
1044
.last_checked_ok))
1045
2062
1046
# LastApprovalRequest - property
2063
@dbus_service_property(_interface, signature="s", access="read")
1047
@dbus_service_property(_interface, signature=u"s", access=u"read")
2064
1048
def LastApprovalRequest_dbus_property(self):
2065
return datetime_to_dbus(self.last_approval_request)
2066
1049
if self.last_approval_request is None:
1050
return dbus.String(u"")
1051
return dbus.String(self.
1052
_datetime_to_dbus(self
1053
.last_approval_request))
1054
2067
1055
# Timeout - property
2068
@dbus_service_property(_interface,
2069
signature="t",
2070
access="readwrite")
1056
@dbus_service_property(_interface, signature=u"t",
1057
access=u"readwrite")
2071
1058
def Timeout_dbus_property(self, value=None):
2072
1059
if value is None: # get
2073
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2074
old_timeout = self.timeout
1060
return dbus.UInt64(self.timeout_milliseconds())
2075
1061
self.timeout = datetime.timedelta(0, 0, 0, value)
2076
# Reschedule disabling
2077
if self.enabled:
2078
now = datetime.datetime.utcnow()
2079
self.expires += self.timeout - old_timeout
2080
if self.expires <= now:
2081
# The timeout has passed
2082
self.disable()
2083
else:
2084
if (getattr(self, "disable_initiator_tag", None)
2085
is None):
2086
return
2087
GLib.source_remove(self.disable_initiator_tag)
2088
self.disable_initiator_tag = GLib.timeout_add(
2089
int((self.expires - now).total_seconds() * 1000),
2090
self.disable)
2091
2092
# ExtendedTimeout - property
2093
@dbus_service_property(_interface,
2094
signature="t",
2095
access="readwrite")
2096
def ExtendedTimeout_dbus_property(self, value=None):
2097
if value is None: # get
2098
return dbus.UInt64(self.extended_timeout.total_seconds()
2099
* 1000)
2100
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2101
1062
# Emit D-Bus signal
1063
self.PropertyChanged(dbus.String(u"Timeout"),
1064
dbus.UInt64(value, variant_level=1))
1065
if getattr(self, u"disable_initiator_tag", None) is None:
1066
return
1067
# Reschedule timeout
1068
gobject.source_remove(self.disable_initiator_tag)
1069
self.disable_initiator_tag = None
1070
time_to_die = (self.
1071
_timedelta_to_milliseconds((self
1072
.last_checked_ok
1073
+ self.timeout)
1074
- datetime.datetime
1075
.utcnow()))
1076
if time_to_die <= 0:
1077
# The timeout has passed
1078
self.disable()
1079
else:
1080
self.disable_initiator_tag = (gobject.timeout_add
1081
(time_to_die, self.disable))
1082
2102
1083
# Interval - property
2103
@dbus_service_property(_interface,
2104
signature="t",
2105
access="readwrite")
1084
@dbus_service_property(_interface, signature=u"t",
1085
access=u"readwrite")
2106
1086
def Interval_dbus_property(self, value=None):
2107
1087
if value is None: # get
2108
return dbus.UInt64(self.interval.total_seconds() * 1000)
1088
return dbus.UInt64(self.interval_milliseconds())
2109
1089
self.interval = datetime.timedelta(0, 0, 0, value)
2110
if getattr(self, "checker_initiator_tag", None) is None:
1090
# Emit D-Bus signal
1091
self.PropertyChanged(dbus.String(u"Interval"),
1092
dbus.UInt64(value, variant_level=1))
1093
if getattr(self, u"checker_initiator_tag", None) is None:
2111
1094
return
2112
if self.enabled:
2113
# Reschedule checker run
2114
GLib.source_remove(self.checker_initiator_tag)
2115
self.checker_initiator_tag = GLib.timeout_add(
2116
value, self.start_checker)
2117
self.start_checker() # Start one now, too
1095
# Reschedule checker run
1096
gobject.source_remove(self.checker_initiator_tag)
1097
self.checker_initiator_tag = (gobject.timeout_add
1098
(value, self.start_checker))
1099
self.start_checker() # Start one now, too
2118
1100
2119
1101
# Checker - property
2120
@dbus_service_property(_interface,
2121
signature="s",
2122
access="readwrite")
1102
@dbus_service_property(_interface, signature=u"s",
1103
access=u"readwrite")
2123
1104
def Checker_dbus_property(self, value=None):
2124
1105
if value is None: # get
2125
1106
return dbus.String(self.checker_command)
2126
self.checker_command = str(value)
2127
1107
self.checker_command = value
1108
# Emit D-Bus signal
1109
self.PropertyChanged(dbus.String(u"Checker"),
1110
dbus.String(self.checker_command,
1111
variant_level=1))
1112
2128
1113
# CheckerRunning - property
2129
@dbus_service_property(_interface,
2130
signature="b",
2131
access="readwrite")
1114
@dbus_service_property(_interface, signature=u"b",
1115
access=u"readwrite")
2132
1116
def CheckerRunning_dbus_property(self, value=None):
2133
1117
if value is None: # get
2134
1118
return dbus.Boolean(self.checker is not None)
2136
1120
self.start_checker()
2137
1121
else:
2138
1122
self.stop_checker()
2139
1123
2140
1124
# ObjectPath - property
2141
@dbus_annotations(
2142
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2143
"org.freedesktop.DBus.Deprecated": "true"})
2144
@dbus_service_property(_interface, signature="o", access="read")
1125
@dbus_service_property(_interface, signature=u"o", access=u"read")
2145
1126
def ObjectPath_dbus_property(self):
2146
return self.dbus_object_path # is already a dbus.ObjectPath
2147
1127
return self.dbus_object_path # is already a dbus.ObjectPath
1128
2148
1129
# Secret = property
2149
@dbus_annotations(
2150
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2151
"invalidates"})
2152
@dbus_service_property(_interface,
2153
signature="ay",
2154
access="write",
2155
byte_arrays=True)
1130
@dbus_service_property(_interface, signature=u"ay",
1131
access=u"write", byte_arrays=True)
2156
1132
def Secret_dbus_property(self, value):
2157
self.secret = bytes(value)
2158
1133
self.secret = str(value)
1134
2159
1135
del _interface
2160
1136
2161
1137
2164
1140
self._pipe = child_pipe
2165
1141
self._pipe.send(('init', fpr, address))
2166
1142
if not self._pipe.recv():
2167
raise KeyError(fpr)
1143
raise KeyError()
2168
1144
2169
1145
def __getattribute__(self, name):
2170
if name == '_pipe':
1146
if(name == '_pipe'):
2171
1147
return super(ProxyClient, self).__getattribute__(name)
2172
1148
self._pipe.send(('getattr', name))
2173
1149
data = self._pipe.recv()
2174
1150
if data[0] == 'data':
2175
1151
return data[1]
2176
1152
if data[0] == 'function':
2177
2178
1153
def func(*args, **kwargs):
2179
1154
self._pipe.send(('funcall', name, args, kwargs))
2180
1155
return self._pipe.recv()[1]
2181
2182
1156
return func
2183
1157
2184
1158
def __setattr__(self, name, value):
2185
if name == '_pipe':
1159
if(name == '_pipe'):
2186
1160
return super(ProxyClient, self).__setattr__(name, value)
2187
1161
self._pipe.send(('setattr', name, value))
2188
1162
2189
1163
2190
1164
class ClientHandler(socketserver.BaseRequestHandler, object):
2191
1165
"""A class to handle client connections.
2192
1166
2193
1167
Instantiated once for each connection to handle it.
2194
1168
Note: This will run in its own forked process."""
2195
1169
2196
1170
def handle(self):
2197
1171
with contextlib.closing(self.server.child_pipe) as child_pipe:
2198
logger.info("TCP connection from: %s",
2199
str(self.client_address))
2200
logger.debug("Pipe FD: %d",
1172
logger.info(u"TCP connection from: %s",
1173
unicode(self.client_address))
1174
logger.debug(u"Pipe FD: %d",
2201
1175
self.server.child_pipe.fileno())
2202
1176
2203
session = gnutls.ClientSession(self.request)
2204
2205
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2206
# "+AES-256-CBC", "+SHA1",
2207
# "+COMP-NULL", "+CTYPE-OPENPGP",
2208
# "+DHE-DSS"))
1177
session = (gnutls.connection
1178
.ClientSession(self.request,
1179
gnutls.connection
1180
.X509Credentials()))
1181
1182
# Note: gnutls.connection.X509Credentials is really a
1183
# generic GnuTLS certificate credentials object so long as
1184
# no X.509 keys are added to it. Therefore, we can use it
1185
# here despite using OpenPGP certificates.
1186
1187
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1188
# u"+AES-256-CBC", u"+SHA1",
1189
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1190
# u"+DHE-DSS"))
2209
1191
# Use a fallback default, since this MUST be set.
2210
1192
priority = self.server.gnutls_priority
2211
1193
if priority is None:
2212
priority = "NORMAL"
2213
gnutls.priority_set_direct(session._c_object,
2214
priority.encode("utf-8"),
2215
None)
1194
priority = u"NORMAL"
1195
(gnutls.library.functions
1196
.gnutls_priority_set_direct(session._c_object,
1197
priority, None))
2216
1198
2217
1199
# Start communication using the Mandos protocol
2218
1200
# Get protocol number
2219
1201
line = self.request.makefile().readline()
2220
logger.debug("Protocol version: %r", line)
1202
logger.debug(u"Protocol version: %r", line)
2221
1203
try:
2222
1204
if int(line.strip().split()[0]) > 1:
2223
raise RuntimeError(line)
2224
except (ValueError, IndexError, RuntimeError) as error:
2225
logger.error("Unknown protocol version: %s", error)
1205
raise RuntimeError
1206
except (ValueError, IndexError, RuntimeError), error:
1207
logger.error(u"Unknown protocol version: %s", error)
2226
1208
return
2227
1209
2228
1210
# Start GnuTLS connection
2229
1211
try:
2230
1212
session.handshake()
2231
except gnutls.Error as error:
2232
logger.warning("Handshake failed: %s", error)
1213
except gnutls.errors.GNUTLSError, error:
1214
logger.warning(u"Handshake failed: %s", error)
2233
1215
# Do not run session.bye() here: the session is not
2234
1216
# established. Just abandon the request.
2235
1217
return
2236
logger.debug("Handshake succeeded")
1218
logger.debug(u"Handshake succeeded")
2237
1219
2238
1220
approval_required = False
2239
1221
try:
2240
1222
try:
2241
fpr = self.fingerprint(
2242
self.peer_certificate(session))
2243
except (TypeError, gnutls.Error) as error:
2244
logger.warning("Bad certificate: %s", error)
1223
fpr = self.fingerprint(self.peer_certificate
1224
(session))
1225
except (TypeError, gnutls.errors.GNUTLSError), error:
1226
logger.warning(u"Bad certificate: %s", error)
2245
1227
return
2246
logger.debug("Fingerprint: %s", fpr)
1228
logger.debug(u"Fingerprint: %s", fpr)
2247
1229
2248
1230
try:
2249
1231
client = ProxyClient(child_pipe, fpr,
2250
1232
self.client_address)
2251
1233
except KeyError:
2252
1234
return
2253
1235
2254
1236
if client.approval_delay:
2255
1237
delay = client.approval_delay
2256
1238
client.approvals_pending += 1
2257
1239
approval_required = True
2258
1240
2259
1241
while True:
2260
1242
if not client.enabled:
2261
logger.info("Client %s is disabled",
2262
client.name)
1243
logger.warning(u"Client %s is disabled",
1244
client.name)
2263
1245
if self.server.use_dbus:
2264
1246
# Emit D-Bus signal
2265
client.Rejected("Disabled")
1247
client.Rejected("Disabled")
2266
1248
return
2267
2268
if client.approved or not client.approval_delay:
2269
# We are approved or approval is disabled
1249
1250
if client._approved or not client.approval_delay:
1251
#We are approved or approval is disabled
2270
1252
break
2271
elif client.approved is None:
2272
logger.info("Client %s needs approval",
1253
elif client._approved is None:
1254
logger.info(u"Client %s needs approval",
2273
1255
client.name)
2274
1256
if self.server.use_dbus:
2275
1257
# Emit D-Bus signal
2276
1258
client.NeedApproval(
2277
client.approval_delay.total_seconds()
2278
* 1000, client.approved_by_default)
1259
client.approval_delay_milliseconds(),
1260
client.approved_by_default)
2279
1261
else:
2280
logger.warning("Client %s was not approved",
1262
logger.warning(u"Client %s was not approved",
2281
1263
client.name)
2282
1264
if self.server.use_dbus:
2283
1265
# Emit D-Bus signal
2284
1266
client.Rejected("Denied")
2285
1267
return
2286
2287
# wait until timeout or approved
1268
1269
#wait until timeout or approved
1270
#x = float(client._timedelta_to_milliseconds(delay))
2288
1271
time = datetime.datetime.now()
2289
1272
client.changedstate.acquire()
2290
client.changedstate.wait(delay.total_seconds())
1273
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
2291
1274
client.changedstate.release()
2292
1275
time2 = datetime.datetime.now()
2293
1276
if (time2 - time) >= delay:
2303
1286
break
2304
1287
else:
2305
1288
delay -= time2 - time
2306
2307
try:
2308
session.send(client.secret)
2309
except gnutls.Error as error:
2310
logger.warning("gnutls send failed",
2311
exc_info=error)
2312
return
2313
2314
logger.info("Sending secret to %s", client.name)
2315
# bump the timeout using extended_timeout
2316
client.bump_timeout(client.extended_timeout)
1289
1290
sent_size = 0
1291
while sent_size < len(client.secret):
1292
try:
1293
sent = session.send(client.secret[sent_size:])
1294
except (gnutls.errors.GNUTLSError), error:
1295
logger.warning("gnutls send failed")
1296
return
1297
logger.debug(u"Sent: %d, remaining: %d",
1298
sent, len(client.secret)
1299
- (sent_size + sent))
1300
sent_size += sent
1301
1302
logger.info(u"Sending secret to %s", client.name)
1303
# bump the timeout as if seen
1304
client.checked_ok()
2317
1305
if self.server.use_dbus:
2318
1306
# Emit D-Bus signal
2319
1307
client.GotSecret()
2320
1308
2321
1309
finally:
2322
1310
if approval_required:
2323
1311
client.approvals_pending -= 1
2324
1312
try:
2325
1313
session.bye()
2326
except gnutls.Error as error:
2327
logger.warning("GnuTLS bye failed",
2328
exc_info=error)
2329
1314
except (gnutls.errors.GNUTLSError), error:
1315
logger.warning("GnuTLS bye failed")
1316
2330
1317
@staticmethod
2331
1318
def peer_certificate(session):
2332
1319
"Return the peer's OpenPGP certificate as a bytestring"
2333
1320
# If not an OpenPGP certificate...
2334
if (gnutls.certificate_type_get(session._c_object)
2335
!= gnutls.CRT_OPENPGP):
2336
# ...return invalid data
2337
return b""
1321
if (gnutls.library.functions
1322
.gnutls_certificate_type_get(session._c_object)
1323
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1324
# ...do the normal thing
1325
return session.peer_certificate
2338
1326
list_size = ctypes.c_uint(1)
2339
cert_list = (gnutls.certificate_get_peers
1327
cert_list = (gnutls.library.functions
1328
.gnutls_certificate_get_peers
2340
1329
(session._c_object, ctypes.byref(list_size)))
2341
1330
if not bool(cert_list) and list_size.value != 0:
2342
raise gnutls.Error("error getting peer certificate")
1331
raise gnutls.errors.GNUTLSError(u"error getting peer"
1332
u" certificate")
2343
1333
if list_size.value == 0:
2344
1334
return None
2345
1335
cert = cert_list[0]
2346
1336
return ctypes.string_at(cert.data, cert.size)
2347
1337
2348
1338
@staticmethod
2349
1339
def fingerprint(openpgp):
2350
1340
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2351
1341
# New GnuTLS "datum" with the OpenPGP public key
2352
datum = gnutls.datum_t(
2353
ctypes.cast(ctypes.c_char_p(openpgp),
2354
ctypes.POINTER(ctypes.c_ubyte)),
2355
ctypes.c_uint(len(openpgp)))
1342
datum = (gnutls.library.types
1343
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1344
ctypes.POINTER
1345
(ctypes.c_ubyte)),
1346
ctypes.c_uint(len(openpgp))))
2356
1347
# New empty GnuTLS certificate
2357
crt = gnutls.openpgp_crt_t()
2358
gnutls.openpgp_crt_init(ctypes.byref(crt))
1348
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1349
(gnutls.library.functions
1350
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2359
1351
# Import the OpenPGP public key into the certificate
2360
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2361
gnutls.OPENPGP_FMT_RAW)
1352
(gnutls.library.functions
1353
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1354
gnutls.library.constants
1355
.GNUTLS_OPENPGP_FMT_RAW))
2362
1356
# Verify the self signature in the key
2363
1357
crtverify = ctypes.c_uint()
2364
gnutls.openpgp_crt_verify_self(crt, 0,
2365
ctypes.byref(crtverify))
1358
(gnutls.library.functions
1359
.gnutls_openpgp_crt_verify_self(crt, 0,
1360
ctypes.byref(crtverify)))
2366
1361
if crtverify.value != 0:
2367
gnutls.openpgp_crt_deinit(crt)
2368
raise gnutls.CertificateSecurityError(code
2369
=crtverify.value)
1362
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1363
raise (gnutls.errors.CertificateSecurityError
1364
(u"Verify failed"))
2370
1365
# New buffer for the fingerprint
2371
1366
buf = ctypes.create_string_buffer(20)
2372
1367
buf_len = ctypes.c_size_t()
2373
1368
# Get the fingerprint from the certificate into the buffer
2374
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2375
ctypes.byref(buf_len))
1369
(gnutls.library.functions
1370
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1371
ctypes.byref(buf_len)))
2376
1372
# Deinit the certificate
2377
gnutls.openpgp_crt_deinit(crt)
1373
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2378
1374
# Convert the buffer to a Python bytestring
2379
1375
fpr = ctypes.string_at(buf, buf_len.value)
2380
1376
# Convert the bytestring to hexadecimal notation
2381
hex_fpr = binascii.hexlify(fpr).upper()
1377
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
2382
1378
return hex_fpr
2383
1379
2384
1380
2385
1381
class MultiprocessingMixIn(object):
2386
1382
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2387
2388
1383
def sub_process_main(self, request, address):
2389
1384
try:
2390
1385
self.finish_request(request, address)
2391
except Exception:
1386
except:
2392
1387
self.handle_error(request, address)
2393
1388
self.close_request(request)
2394
1389
2395
1390
def process_request(self, request, address):
2396
1391
"""Start a new process to process the request."""
2397
proc = multiprocessing.Process(target=self.sub_process_main,
2398
args=(request, address))
2399
proc.start()
2400
return proc
2401
1392
multiprocessing.Process(target = self.sub_process_main,
1393
args = (request, address)).start()
2402
1394
2403
1395
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2404
1396
""" adds a pipe to the MixIn """
2405
2406
1397
def process_request(self, request, client_address):
2407
1398
"""Overrides and wraps the original process_request().
2408
1399
2409
1400
This function creates a new pipe in self.pipe
2410
1401
"""
2411
1402
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2412
1403
2413
proc = MultiprocessingMixIn.process_request(self, request,
2414
client_address)
1404
super(MultiprocessingMixInWithPipe,
1405
self).process_request(request, client_address)
2415
1406
self.child_pipe.close()
2416
self.add_pipe(parent_pipe, proc)
1407
self.add_pipe(parent_pipe)
2417
1408
2418
def add_pipe(self, parent_pipe, proc):
1409
def add_pipe(self, parent_pipe):
2419
1410
"""Dummy function; override as necessary"""
2420
raise NotImplementedError()
2421
1411
pass
2422
1412
2423
1413
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2424
1414
socketserver.TCPServer, object):
2425
1415
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2426
1416
2427
1417
Attributes:
2428
1418
enabled: Boolean; whether this server is activated yet
2429
1419
interface: None or a network interface name (string)
2430
1420
use_ipv6: Boolean; to use IPv6 or not
2431
1421
"""
2432
2433
1422
def __init__(self, server_address, RequestHandlerClass,
2434
interface=None,
2435
use_ipv6=True,
2436
socketfd=None):
2437
"""If socketfd is set, use that file descriptor instead of
2438
creating a new one with socket.socket().
2439
"""
1423
interface=None, use_ipv6=True):
2440
1424
self.interface = interface
2441
1425
if use_ipv6:
2442
1426
self.address_family = socket.AF_INET6
2443
if socketfd is not None:
2444
# Save the file descriptor
2445
self.socketfd = socketfd
2446
# Save the original socket.socket() function
2447
self.socket_socket = socket.socket
2448
2449
# To implement --socket, we monkey patch socket.socket.
2450
#
2451
# (When socketserver.TCPServer is a new-style class, we
2452
# could make self.socket into a property instead of monkey
2453
# patching socket.socket.)
2454
#
2455
# Create a one-time-only replacement for socket.socket()
2456
@functools.wraps(socket.socket)
2457
def socket_wrapper(*args, **kwargs):
2458
# Restore original function so subsequent calls are
2459
# not affected.
2460
socket.socket = self.socket_socket
2461
del self.socket_socket
2462
# This time only, return a new socket object from the
2463
# saved file descriptor.
2464
return socket.fromfd(self.socketfd, *args, **kwargs)
2465
# Replace socket.socket() function with wrapper
2466
socket.socket = socket_wrapper
2467
# The socketserver.TCPServer.__init__ will call
2468
# socket.socket(), which might be our replacement,
2469
# socket_wrapper(), if socketfd was set.
2470
1427
socketserver.TCPServer.__init__(self, server_address,
2471
1428
RequestHandlerClass)
2472
2473
1429
def server_bind(self):
2474
1430
"""This overrides the normal server_bind() function
2475
1431
to bind to an interface if one was specified, and also NOT to
2476
1432
bind to an address or port if they were not specified."""
2477
global SO_BINDTODEVICE
2478
1433
if self.interface is not None:
2479
1434
if SO_BINDTODEVICE is None:
2480
# Fall back to a hard-coded value which seems to be
2481
# common enough.
2482
logger.warning("SO_BINDTODEVICE not found, trying 25")
2483
SO_BINDTODEVICE = 25
2484
try:
2485
self.socket.setsockopt(
2486
socket.SOL_SOCKET, SO_BINDTODEVICE,
2487
(self.interface + "\0").encode("utf-8"))
2488
except socket.error as error:
2489
if error.errno == errno.EPERM:
2490
logger.error("No permission to bind to"
2491
" interface %s", self.interface)
2492
elif error.errno == errno.ENOPROTOOPT:
2493
logger.error("SO_BINDTODEVICE not available;"
2494
" cannot bind to interface %s",
2495
self.interface)
2496
elif error.errno == errno.ENODEV:
2497
logger.error("Interface %s does not exist,"
2498
" cannot bind", self.interface)
2499
else:
2500
raise
1435
logger.error(u"SO_BINDTODEVICE does not exist;"
1436
u" cannot bind to interface %s",
1437
self.interface)
1438
else:
1439
try:
1440
self.socket.setsockopt(socket.SOL_SOCKET,
1441
SO_BINDTODEVICE,
1442
str(self.interface
1443
+ u'\0'))
1444
except socket.error, error:
1445
if error[0] == errno.EPERM:
1446
logger.error(u"No permission to"
1447
u" bind to interface %s",
1448
self.interface)
1449
elif error[0] == errno.ENOPROTOOPT:
1450
logger.error(u"SO_BINDTODEVICE not available;"
1451
u" cannot bind to interface %s",
1452
self.interface)
1453
else:
1454
raise
2501
1455
# Only bind(2) the socket if we really need to.
2502
1456
if self.server_address[0] or self.server_address[1]:
2503
1457
if not self.server_address[0]:
2504
1458
if self.address_family == socket.AF_INET6:
2505
any_address = "::" # in6addr_any
1459
any_address = u"::" # in6addr_any
2506
1460
else:
2507
any_address = "0.0.0.0" # INADDR_ANY
1461
any_address = socket.INADDR_ANY
2508
1462
self.server_address = (any_address,
2509
1463
self.server_address[1])
2510
1464
elif not self.server_address[1]:
2511
self.server_address = (self.server_address[0], 0)
1465
self.server_address = (self.server_address[0],
1466
0)
2512
1467
# if self.interface:
2513
1468
# self.server_address = (self.server_address[0],
2514
1469
# 0, # port
2520
1475
2521
1476
class MandosServer(IPv6_TCPServer):
2522
1477
"""Mandos server.
2523
1478
2524
1479
Attributes:
2525
1480
clients: set of Client objects
2526
1481
gnutls_priority GnuTLS priority string
2527
1482
use_dbus: Boolean; to emit D-Bus signals or not
2528
2529
Assumes a GLib.MainLoop event loop.
1483
1484
Assumes a gobject.MainLoop event loop.
2530
1485
"""
2531
2532
1486
def __init__(self, server_address, RequestHandlerClass,
2533
interface=None,
2534
use_ipv6=True,
2535
clients=None,
2536
gnutls_priority=None,
2537
use_dbus=True,
2538
socketfd=None):
1487
interface=None, use_ipv6=True, clients=None,
1488
gnutls_priority=None, use_dbus=True):
2539
1489
self.enabled = False
2540
1490
self.clients = clients
2541
1491
if self.clients is None:
2542
self.clients = {}
1492
self.clients = set()
2543
1493
self.use_dbus = use_dbus
2544
1494
self.gnutls_priority = gnutls_priority
2545
1495
IPv6_TCPServer.__init__(self, server_address,
2546
1496
RequestHandlerClass,
2547
interface=interface,
2548
use_ipv6=use_ipv6,
2549
socketfd=socketfd)
2550
1497
interface = interface,
1498
use_ipv6 = use_ipv6)
2551
1499
def server_activate(self):
2552
1500
if self.enabled:
2553
1501
return socketserver.TCPServer.server_activate(self)
2554
2555
1502
def enable(self):
2556
1503
self.enabled = True
2557
2558
def add_pipe(self, parent_pipe, proc):
1504
def add_pipe(self, parent_pipe):
2559
1505
# Call "handle_ipc" for both data and EOF events
2560
GLib.io_add_watch(
2561
parent_pipe.fileno(),
2562
GLib.IO_IN | GLib.IO_HUP,
2563
functools.partial(self.handle_ipc,
2564
parent_pipe=parent_pipe,
2565
proc=proc))
2566
2567
def handle_ipc(self, source, condition,
2568
parent_pipe=None,
2569
proc=None,
1506
gobject.io_add_watch(parent_pipe.fileno(),
1507
gobject.IO_IN | gobject.IO_HUP,
1508
functools.partial(self.handle_ipc,
1509
parent_pipe = parent_pipe))
1510
1511
def handle_ipc(self, source, condition, parent_pipe=None,
2570
1512
client_object=None):
2571
# error, or the other end of multiprocessing.Pipe has closed
2572
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2573
# Wait for other process to exit
2574
proc.join()
1513
condition_names = {
1514
gobject.IO_IN: u"IN", # There is data to read.
1515
gobject.IO_OUT: u"OUT", # Data can be written (without
1516
# blocking).
1517
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1518
gobject.IO_ERR: u"ERR", # Error condition.
1519
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1520
# broken, usually for pipes and
1521
# sockets).
1522
}
1523
conditions_string = ' | '.join(name
1524
for cond, name in
1525
condition_names.iteritems()
1526
if cond & condition)
1527
# error or the other end of multiprocessing.Pipe has closed
1528
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2575
1529
return False
2576
1530
2577
1531
# Read a request from the child
2578
1532
request = parent_pipe.recv()
2579
1533
command = request[0]
2580
1534
2581
1535
if command == 'init':
2582
fpr = request[1].decode("ascii")
1536
fpr = request[1]
2583
1537
address = request[2]
2584
2585
for c in self.clients.values():
1538
1539
for c in self.clients:
2586
1540
if c.fingerprint == fpr:
2587
1541
client = c
2588
1542
break
2589
1543
else:
2590
logger.info("Client not found for fingerprint: %s, ad"
2591
"dress: %s", fpr, address)
1544
logger.warning(u"Client not found for fingerprint: %s, ad"
1545
u"dress: %s", fpr, address)
2592
1546
if self.use_dbus:
2593
1547
# Emit D-Bus signal
2594
mandos_dbus_service.ClientNotFound(fpr,
2595
address[0])
1548
mandos_dbus_service.ClientNotFound(fpr, address[0])
2596
1549
parent_pipe.send(False)
2597
1550
return False
2598
2599
GLib.io_add_watch(
2600
parent_pipe.fileno(),
2601
GLib.IO_IN | GLib.IO_HUP,
2602
functools.partial(self.handle_ipc,
2603
parent_pipe=parent_pipe,
2604
proc=proc,
2605
client_object=client))
1551
1552
gobject.io_add_watch(parent_pipe.fileno(),
1553
gobject.IO_IN | gobject.IO_HUP,
1554
functools.partial(self.handle_ipc,
1555
parent_pipe = parent_pipe,
1556
client_object = client))
2606
1557
parent_pipe.send(True)
2607
# remove the old hook in favor of the new above hook on
2608
# same fileno
1558
# remove the old hook in favor of the new above hook on same fileno
2609
1559
return False
2610
1560
if command == 'funcall':
2611
1561
funcname = request[1]
2612
1562
args = request[2]
2613
1563
kwargs = request[3]
2614
2615
parent_pipe.send(('data', getattr(client_object,
2616
funcname)(*args,
2617
**kwargs)))
1564
1565
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2618
1566
2619
1567
if command == 'getattr':
2620
1568
attrname = request[1]
2621
if isinstance(client_object.__getattribute__(attrname),
2622
collections.Callable):
2623
parent_pipe.send(('function', ))
1569
if callable(client_object.__getattribute__(attrname)):
1570
parent_pipe.send(('function',))
2624
1571
else:
2625
parent_pipe.send((
2626
'data', client_object.__getattribute__(attrname)))
2627
1572
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1573
2628
1574
if command == 'setattr':
2629
1575
attrname = request[1]
2630
1576
value = request[2]
2633
1579
return True
2634
1580
2635
1581
2636
def rfc3339_duration_to_delta(duration):
2637
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2638
2639
>>> rfc3339_duration_to_delta("P7D")
2640
datetime.timedelta(7)
2641
>>> rfc3339_duration_to_delta("PT60S")
2642
datetime.timedelta(0, 60)
2643
>>> rfc3339_duration_to_delta("PT60M")
2644
datetime.timedelta(0, 3600)
2645
>>> rfc3339_duration_to_delta("PT24H")
2646
datetime.timedelta(1)
2647
>>> rfc3339_duration_to_delta("P1W")
2648
datetime.timedelta(7)
2649
>>> rfc3339_duration_to_delta("PT5M30S")
2650
datetime.timedelta(0, 330)
2651
>>> rfc3339_duration_to_delta("P1DT3M20S")
2652
datetime.timedelta(1, 200)
2653
"""
2654
2655
# Parsing an RFC 3339 duration with regular expressions is not
2656
# possible - there would have to be multiple places for the same
2657
# values, like seconds. The current code, while more esoteric, is
2658
# cleaner without depending on a parsing library. If Python had a
2659
# built-in library for parsing we would use it, but we'd like to
2660
# avoid excessive use of external libraries.
2661
2662
# New type for defining tokens, syntax, and semantics all-in-one
2663
Token = collections.namedtuple("Token", (
2664
"regexp", # To match token; if "value" is not None, must have
2665
# a "group" containing digits
2666
"value", # datetime.timedelta or None
2667
"followers")) # Tokens valid after this token
2668
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2669
# the "duration" ABNF definition in RFC 3339, Appendix A.
2670
token_end = Token(re.compile(r"$"), None, frozenset())
2671
token_second = Token(re.compile(r"(\d+)S"),
2672
datetime.timedelta(seconds=1),
2673
frozenset((token_end, )))
2674
token_minute = Token(re.compile(r"(\d+)M"),
2675
datetime.timedelta(minutes=1),
2676
frozenset((token_second, token_end)))
2677
token_hour = Token(re.compile(r"(\d+)H"),
2678
datetime.timedelta(hours=1),
2679
frozenset((token_minute, token_end)))
2680
token_time = Token(re.compile(r"T"),
2681
None,
2682
frozenset((token_hour, token_minute,
2683
token_second)))
2684
token_day = Token(re.compile(r"(\d+)D"),
2685
datetime.timedelta(days=1),
2686
frozenset((token_time, token_end)))
2687
token_month = Token(re.compile(r"(\d+)M"),
2688
datetime.timedelta(weeks=4),
2689
frozenset((token_day, token_end)))
2690
token_year = Token(re.compile(r"(\d+)Y"),
2691
datetime.timedelta(weeks=52),
2692
frozenset((token_month, token_end)))
2693
token_week = Token(re.compile(r"(\d+)W"),
2694
datetime.timedelta(weeks=1),
2695
frozenset((token_end, )))
2696
token_duration = Token(re.compile(r"P"), None,
2697
frozenset((token_year, token_month,
2698
token_day, token_time,
2699
token_week)))
2700
# Define starting values:
2701
# Value so far
2702
value = datetime.timedelta()
2703
found_token = None
2704
# Following valid tokens
2705
followers = frozenset((token_duration, ))
2706
# String left to parse
2707
s = duration
2708
# Loop until end token is found
2709
while found_token is not token_end:
2710
# Search for any currently valid tokens
2711
for token in followers:
2712
match = token.regexp.match(s)
2713
if match is not None:
2714
# Token found
2715
if token.value is not None:
2716
# Value found, parse digits
2717
factor = int(match.group(1), 10)
2718
# Add to value so far
2719
value += factor * token.value
2720
# Strip token from string
2721
s = token.regexp.sub("", s, 1)
2722
# Go to found token
2723
found_token = token
2724
# Set valid next tokens
2725
followers = found_token.followers
2726
break
2727
else:
2728
# No currently valid tokens were found
2729
raise ValueError("Invalid RFC 3339 duration: {!r}"
2730
.format(duration))
2731
# End token found
2732
return value
2733
2734
2735
1582
def string_to_delta(interval):
2736
1583
"""Parse a string and return a datetime.timedelta
2737
2738
>>> string_to_delta('7d')
1584
1585
>>> string_to_delta(u'7d')
2739
1586
datetime.timedelta(7)
2740
>>> string_to_delta('60s')
1587
>>> string_to_delta(u'60s')
2741
1588
datetime.timedelta(0, 60)
2742
>>> string_to_delta('60m')
1589
>>> string_to_delta(u'60m')
2743
1590
datetime.timedelta(0, 3600)
2744
>>> string_to_delta('24h')
1591
>>> string_to_delta(u'24h')
2745
1592
datetime.timedelta(1)
2746
>>> string_to_delta('1w')
1593
>>> string_to_delta(u'1w')
2747
1594
datetime.timedelta(7)
2748
>>> string_to_delta('5m 30s')
1595
>>> string_to_delta(u'5m 30s')
2749
1596
datetime.timedelta(0, 330)
2750
1597
"""
2751
2752
try:
2753
return rfc3339_duration_to_delta(interval)
2754
except ValueError:
2755
pass
2756
2757
1598
timevalue = datetime.timedelta(0)
2758
1599
for s in interval.split():
2759
1600
try:
2760
suffix = s[-1]
1601
suffix = unicode(s[-1])
2761
1602
value = int(s[:-1])
2762
if suffix == "d":
1603
if suffix == u"d":
2763
1604
delta = datetime.timedelta(value)
2764
elif suffix == "s":
1605
elif suffix == u"s":
2765
1606
delta = datetime.timedelta(0, value)
2766
elif suffix == "m":
1607
elif suffix == u"m":
2767
1608
delta = datetime.timedelta(0, 0, 0, 0, value)
2768
elif suffix == "h":
1609
elif suffix == u"h":
2769
1610
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
2770
elif suffix == "w":
1611
elif suffix == u"w":
2771
1612
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2772
1613
else:
2773
raise ValueError("Unknown suffix {!r}".format(suffix))
2774
except IndexError as e:
2775
raise ValueError(*(e.args))
1614
raise ValueError(u"Unknown suffix %r" % suffix)
1615
except (ValueError, IndexError), e:
1616
raise ValueError(e.message)
2776
1617
timevalue += delta
2777
1618
return timevalue
2778
1619
2779
1620
2780
def daemon(nochdir=False, noclose=False):
1621
def if_nametoindex(interface):
1622
"""Call the C function if_nametoindex(), or equivalent
1623
1624
Note: This function cannot accept a unicode string."""
1625
global if_nametoindex
1626
try:
1627
if_nametoindex = (ctypes.cdll.LoadLibrary
1628
(ctypes.util.find_library(u"c"))
1629
.if_nametoindex)
1630
except (OSError, AttributeError):
1631
logger.warning(u"Doing if_nametoindex the hard way")
1632
def if_nametoindex(interface):
1633
"Get an interface index the hard way, i.e. using fcntl()"
1634
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1635
with contextlib.closing(socket.socket()) as s:
1636
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1637
struct.pack(str(u"16s16x"),
1638
interface))
1639
interface_index = struct.unpack(str(u"I"),
1640
ifreq[16:20])[0]
1641
return interface_index
1642
return if_nametoindex(interface)
1643
1644
1645
def daemon(nochdir = False, noclose = False):
2781
1646
"""See daemon(3). Standard BSD Unix function.
2782
1647
2783
1648
This should really exist as os.daemon, but it doesn't (yet)."""
2784
1649
if os.fork():
2785
1650
sys.exit()
2786
1651
os.setsid()
2787
1652
if not nochdir:
2788
os.chdir("/")
1653
os.chdir(u"/")
2789
1654
if os.fork():
2790
1655
sys.exit()
2791
1656
if not noclose:
2792
1657
# Close all standard open file descriptors
2793
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1658
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2794
1659
if not stat.S_ISCHR(os.fstat(null).st_mode):
2795
1660
raise OSError(errno.ENODEV,
2796
"{} not a character device"
2797
.format(os.devnull))
1661
u"%s not a character device"
1662
% os.path.devnull)
2798
1663
os.dup2(null, sys.stdin.fileno())
2799
1664
os.dup2(null, sys.stdout.fileno())
2800
1665
os.dup2(null, sys.stderr.fileno())
2803
1668
2804
1669
2805
1670
def main():
2806
1671
2807
1672
##################################################################
2808
1673
# Parsing of options, both command line and config file
2809
2810
parser = argparse.ArgumentParser()
2811
parser.add_argument("-v", "--version", action="version",
2812
version="%(prog)s {}".format(version),
2813
help="show version number and exit")
2814
parser.add_argument("-i", "--interface", metavar="IF",
2815
help="Bind to interface IF")
2816
parser.add_argument("-a", "--address",
2817
help="Address to listen for requests on")
2818
parser.add_argument("-p", "--port", type=int,
2819
help="Port number to receive requests on")
2820
parser.add_argument("--check", action="store_true",
2821
help="Run self-test")
2822
parser.add_argument("--debug", action="store_true",
2823
help="Debug mode; run in foreground and log"
2824
" to terminal", default=None)
2825
parser.add_argument("--debuglevel", metavar="LEVEL",
2826
help="Debug level for stdout output")
2827
parser.add_argument("--priority", help="GnuTLS"
2828
" priority string (see GnuTLS documentation)")
2829
parser.add_argument("--servicename",
2830
metavar="NAME", help="Zeroconf service name")
2831
parser.add_argument("--configdir",
2832
default="/etc/mandos", metavar="DIR",
2833
help="Directory to search for configuration"
2834
" files")
2835
parser.add_argument("--no-dbus", action="store_false",
2836
dest="use_dbus", help="Do not provide D-Bus"
2837
" system bus interface", default=None)
2838
parser.add_argument("--no-ipv6", action="store_false",
2839
dest="use_ipv6", help="Do not use IPv6",
2840
default=None)
2841
parser.add_argument("--no-restore", action="store_false",
2842
dest="restore", help="Do not restore stored"
2843
" state", default=None)
2844
parser.add_argument("--socket", type=int,
2845
help="Specify a file descriptor to a network"
2846
" socket to use instead of creating one")
2847
parser.add_argument("--statedir", metavar="DIR",
2848
help="Directory to save/restore state in")
2849
parser.add_argument("--foreground", action="store_true",
2850
help="Run in foreground", default=None)
2851
parser.add_argument("--no-zeroconf", action="store_false",
2852
dest="zeroconf", help="Do not use Zeroconf",
2853
default=None)
2854
2855
options = parser.parse_args()
2856
1674
1675
parser = optparse.OptionParser(version = "%%prog %s" % version)
1676
parser.add_option("-i", u"--interface", type=u"string",
1677
metavar="IF", help=u"Bind to interface IF")
1678
parser.add_option("-a", u"--address", type=u"string",
1679
help=u"Address to listen for requests on")
1680
parser.add_option("-p", u"--port", type=u"int",
1681
help=u"Port number to receive requests on")
1682
parser.add_option("--check", action=u"store_true",
1683
help=u"Run self-test")
1684
parser.add_option("--debug", action=u"store_true",
1685
help=u"Debug mode; run in foreground and log to"
1686
u" terminal")
1687
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1688
help=u"Debug level for stdout output")
1689
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1690
u" priority string (see GnuTLS documentation)")
1691
parser.add_option("--servicename", type=u"string",
1692
metavar=u"NAME", help=u"Zeroconf service name")
1693
parser.add_option("--configdir", type=u"string",
1694
default=u"/etc/mandos", metavar=u"DIR",
1695
help=u"Directory to search for configuration"
1696
u" files")
1697
parser.add_option("--no-dbus", action=u"store_false",
1698
dest=u"use_dbus", help=u"Do not provide D-Bus"
1699
u" system bus interface")
1700
parser.add_option("--no-ipv6", action=u"store_false",
1701
dest=u"use_ipv6", help=u"Do not use IPv6")
1702
options = parser.parse_args()[0]
1703
2857
1704
if options.check:
2858
1705
import doctest
2859
fail_count, test_count = doctest.testmod()
2860
sys.exit(os.EX_OK if fail_count == 0 else 1)
2861
1706
doctest.testmod()
1707
sys.exit()
1708
2862
1709
# Default values for config file for server-global settings
2863
server_defaults = {"interface": "",
2864
"address": "",
2865
"port": "",
2866
"debug": "False",
2867
"priority":
2868
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2869
":+SIGN-DSA-SHA256",
2870
"servicename": "Mandos",
2871
"use_dbus": "True",
2872
"use_ipv6": "True",
2873
"debuglevel": "",
2874
"restore": "True",
2875
"socket": "",
2876
"statedir": "/var/lib/mandos",
2877
"foreground": "False",
2878
"zeroconf": "True",
2879
}
2880
1710
server_defaults = { u"interface": u"",
1711
u"address": u"",
1712
u"port": u"",
1713
u"debug": u"False",
1714
u"priority":
1715
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1716
u"servicename": u"Mandos",
1717
u"use_dbus": u"True",
1718
u"use_ipv6": u"True",
1719
u"debuglevel": u"",
1720
}
1721
2881
1722
# Parse config file for server-global settings
2882
1723
server_config = configparser.SafeConfigParser(server_defaults)
2883
1724
del server_defaults
2884
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1725
server_config.read(os.path.join(options.configdir,
1726
u"mandos.conf"))
2885
1727
# Convert the SafeConfigParser object to a dict
2886
1728
server_settings = server_config.defaults()
2887
1729
# Use the appropriate methods on the non-string config options
2888
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2889
"foreground", "zeroconf"):
2890
server_settings[option] = server_config.getboolean("DEFAULT",
1730
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1731
server_settings[option] = server_config.getboolean(u"DEFAULT",
2891
1732
option)
2892
1733
if server_settings["port"]:
2893
server_settings["port"] = server_config.getint("DEFAULT",
2894
"port")
2895
if server_settings["socket"]:
2896
server_settings["socket"] = server_config.getint("DEFAULT",
2897
"socket")
2898
# Later, stdin will, and stdout and stderr might, be dup'ed
2899
# over with an opened os.devnull. But we don't want this to
2900
# happen with a supplied network socket.
2901
if 0 <= server_settings["socket"] <= 2:
2902
server_settings["socket"] = os.dup(server_settings
2903
["socket"])
1734
server_settings["port"] = server_config.getint(u"DEFAULT",
1735
u"port")
2904
1736
del server_config
2905
1737
2906
1738
# Override the settings from the config file with command line
2907
1739
# options, if set.
2908
for option in ("interface", "address", "port", "debug",
2909
"priority", "servicename", "configdir", "use_dbus",
2910
"use_ipv6", "debuglevel", "restore", "statedir",
2911
"socket", "foreground", "zeroconf"):
1740
for option in (u"interface", u"address", u"port", u"debug",
1741
u"priority", u"servicename", u"configdir",
1742
u"use_dbus", u"use_ipv6", u"debuglevel"):
2912
1743
value = getattr(options, option)
2913
1744
if value is not None:
2914
1745
server_settings[option] = value
2915
1746
del options
2916
1747
# Force all strings to be unicode
2917
1748
for option in server_settings.keys():
2918
if isinstance(server_settings[option], bytes):
2919
server_settings[option] = (server_settings[option]
2920
.decode("utf-8"))
2921
# Force all boolean options to be boolean
2922
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2923
"foreground", "zeroconf"):
2924
server_settings[option] = bool(server_settings[option])
2925
# Debug implies foreground
2926
if server_settings["debug"]:
2927
server_settings["foreground"] = True
1749
if type(server_settings[option]) is str:
1750
server_settings[option] = unicode(server_settings[option])
2928
1751
# Now we have our good server settings in "server_settings"
2929
1752
2930
1753
##################################################################
2931
2932
if (not server_settings["zeroconf"]
2933
and not (server_settings["port"]
2934
or server_settings["socket"] != "")):
2935
parser.error("Needs port or socket to work without Zeroconf")
2936
1754
2937
1755
# For convenience
2938
debug = server_settings["debug"]
2939
debuglevel = server_settings["debuglevel"]
2940
use_dbus = server_settings["use_dbus"]
2941
use_ipv6 = server_settings["use_ipv6"]
2942
stored_state_path = os.path.join(server_settings["statedir"],
2943
stored_state_file)
2944
foreground = server_settings["foreground"]
2945
zeroconf = server_settings["zeroconf"]
2946
2947
if debug:
2948
initlogger(debug, logging.DEBUG)
2949
else:
2950
if not debuglevel:
2951
initlogger(debug)
2952
else:
2953
level = getattr(logging, debuglevel.upper())
2954
initlogger(debug, level)
2955
2956
if server_settings["servicename"] != "Mandos":
2957
syslogger.setFormatter(
2958
logging.Formatter('Mandos ({}) [%(process)d]:'
2959
' %(levelname)s: %(message)s'.format(
2960
server_settings["servicename"])))
2961
1756
debug = server_settings[u"debug"]
1757
debuglevel = server_settings[u"debuglevel"]
1758
use_dbus = server_settings[u"use_dbus"]
1759
use_ipv6 = server_settings[u"use_ipv6"]
1760
1761
if server_settings[u"servicename"] != u"Mandos":
1762
syslogger.setFormatter(logging.Formatter
1763
(u'Mandos (%s) [%%(process)d]:'
1764
u' %%(levelname)s: %%(message)s'
1765
% server_settings[u"servicename"]))
1766
2962
1767
# Parse config file with clients
2963
client_config = configparser.SafeConfigParser(Client
2964
.client_defaults)
2965
client_config.read(os.path.join(server_settings["configdir"],
2966
"clients.conf"))
2967
1768
client_defaults = { u"timeout": u"1h",
1769
u"interval": u"5m",
1770
u"checker": u"fping -q -- %%(host)s",
1771
u"host": u"",
1772
u"approval_delay": u"0s",
1773
u"approval_duration": u"1s",
1774
}
1775
client_config = configparser.SafeConfigParser(client_defaults)
1776
client_config.read(os.path.join(server_settings[u"configdir"],
1777
u"clients.conf"))
1778
2968
1779
global mandos_dbus_service
2969
1780
mandos_dbus_service = None
2970
2971
socketfd = None
2972
if server_settings["socket"] != "":
2973
socketfd = server_settings["socket"]
2974
tcp_server = MandosServer(
2975
(server_settings["address"], server_settings["port"]),
2976
ClientHandler,
2977
interface=(server_settings["interface"] or None),
2978
use_ipv6=use_ipv6,
2979
gnutls_priority=server_settings["priority"],
2980
use_dbus=use_dbus,
2981
socketfd=socketfd)
2982
if not foreground:
2983
pidfilename = "/run/mandos.pid"
2984
if not os.path.isdir("/run/."):
2985
pidfilename = "/var/run/mandos.pid"
2986
pidfile = None
2987
try:
2988
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2989
except IOError as e:
2990
logger.error("Could not open file %r", pidfilename,
2991
exc_info=e)
2992
2993
for name, group in (("_mandos", "_mandos"),
2994
("mandos", "mandos"),
2995
("nobody", "nogroup")):
2996
try:
2997
uid = pwd.getpwnam(name).pw_uid
2998
gid = pwd.getpwnam(group).pw_gid
2999
break
1781
1782
tcp_server = MandosServer((server_settings[u"address"],
1783
server_settings[u"port"]),
1784
ClientHandler,
1785
interface=(server_settings[u"interface"]
1786
or None),
1787
use_ipv6=use_ipv6,
1788
gnutls_priority=
1789
server_settings[u"priority"],
1790
use_dbus=use_dbus)
1791
if not debug:
1792
pidfilename = u"/var/run/mandos.pid"
1793
try:
1794
pidfile = open(pidfilename, u"w")
1795
except IOError:
1796
logger.error(u"Could not open file %r", pidfilename)
1797
1798
try:
1799
uid = pwd.getpwnam(u"_mandos").pw_uid
1800
gid = pwd.getpwnam(u"_mandos").pw_gid
1801
except KeyError:
1802
try:
1803
uid = pwd.getpwnam(u"mandos").pw_uid
1804
gid = pwd.getpwnam(u"mandos").pw_gid
3000
1805
except KeyError:
3001
continue
3002
else:
3003
uid = 65534
3004
gid = 65534
1806
try:
1807
uid = pwd.getpwnam(u"nobody").pw_uid
1808
gid = pwd.getpwnam(u"nobody").pw_gid
1809
except KeyError:
1810
uid = 65534
1811
gid = 65534
3005
1812
try:
3006
1813
os.setgid(gid)
3007
1814
os.setuid(uid)
3008
if debug:
3009
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3010
gid))
3011
except OSError as error:
3012
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3013
.format(uid, gid, os.strerror(error.errno)))
3014
if error.errno != errno.EPERM:
3015
raise
1815
except OSError, error:
1816
if error[0] != errno.EPERM:
1817
raise error
1818
1819
if not debug and not debuglevel:
1820
syslogger.setLevel(logging.WARNING)
1821
console.setLevel(logging.WARNING)
1822
if debuglevel:
1823
level = getattr(logging, debuglevel.upper())
1824
syslogger.setLevel(level)
1825
console.setLevel(level)
3016
1826
3017
1827
if debug:
3018
1828
# Enable all possible GnuTLS debugging
3019
1829
3020
1830
# "Use a log level over 10 to enable all debugging options."
3021
1831
# - GnuTLS manual
3022
gnutls.global_set_log_level(11)
3023
3024
@gnutls.log_func
1832
gnutls.library.functions.gnutls_global_set_log_level(11)
1833
1834
@gnutls.library.types.gnutls_log_func
3025
1835
def debug_gnutls(level, string):
3026
logger.debug("GnuTLS: %s", string[:-1])
3027
3028
gnutls.global_set_log_function(debug_gnutls)
3029
1836
logger.debug(u"GnuTLS: %s", string[:-1])
1837
1838
(gnutls.library.functions
1839
.gnutls_global_set_log_function(debug_gnutls))
1840
3030
1841
# Redirect stdin so all checkers get /dev/null
3031
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1842
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3032
1843
os.dup2(null, sys.stdin.fileno())
3033
1844
if null > 2:
3034
1845
os.close(null)
3035
3036
# Need to fork before connecting to D-Bus
3037
if not foreground:
3038
# Close all input and output, do double fork, etc.
3039
daemon()
3040
3041
# multiprocessing will use threads, so before we use GLib we need
3042
# to inform GLib that threads will be used.
3043
GLib.threads_init()
3044
1846
else:
1847
# No console logging
1848
logger.removeHandler(console)
1849
1850
3045
1851
global main_loop
3046
1852
# From the Avahi example code
3047
DBusGMainLoop(set_as_default=True)
3048
main_loop = GLib.MainLoop()
1853
DBusGMainLoop(set_as_default=True )
1854
main_loop = gobject.MainLoop()
3049
1855
bus = dbus.SystemBus()
3050
1856
# End of Avahi example code
3051
1857
if use_dbus:
3052
1858
try:
3053
bus_name = dbus.service.BusName("se.recompile.Mandos",
3054
bus,
3055
do_not_queue=True)
3056
old_bus_name = dbus.service.BusName(
3057
"se.bsnet.fukt.Mandos", bus,
3058
do_not_queue=True)
3059
except dbus.exceptions.DBusException as e:
3060
logger.error("Disabling D-Bus:", exc_info=e)
1859
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1860
bus, do_not_queue=True)
1861
except dbus.exceptions.NameExistsException, e:
1862
logger.error(unicode(e) + u", disabling D-Bus")
3061
1863
use_dbus = False
3062
server_settings["use_dbus"] = False
1864
server_settings[u"use_dbus"] = False
3063
1865
tcp_server.use_dbus = False
3064
if zeroconf:
3065
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3066
service = AvahiServiceToSyslog(
3067
name=server_settings["servicename"],
3068
servicetype="_mandos._tcp",
3069
protocol=protocol,
3070
bus=bus)
3071
if server_settings["interface"]:
3072
service.interface = if_nametoindex(
3073
server_settings["interface"].encode("utf-8"))
1866
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1867
service = AvahiService(name = server_settings[u"servicename"],
1868
servicetype = u"_mandos._tcp",
1869
protocol = protocol, bus = bus)
1870
if server_settings["interface"]:
1871
service.interface = (if_nametoindex
1872
(str(server_settings[u"interface"])))
3074
1873
1874
if not debug:
1875
# Close all input and output, do double fork, etc.
1876
daemon()
1877
3075
1878
global multiprocessing_manager
3076
1879
multiprocessing_manager = multiprocessing.Manager()
3077
1880
3078
1881
client_class = Client
3079
1882
if use_dbus:
3080
client_class = functools.partial(ClientDBus, bus=bus)
3081
3082
client_settings = Client.config_parser(client_config)
3083
old_client_settings = {}
3084
clients_data = {}
3085
3086
# This is used to redirect stdout and stderr for checker processes
3087
global wnull
3088
wnull = open(os.devnull, "w") # A writable /dev/null
3089
# Only used if server is running in foreground but not in debug
3090
# mode
3091
if debug or not foreground:
3092
wnull.close()
3093
3094
# Get client data and settings from last running state.
3095
if server_settings["restore"]:
3096
try:
3097
with open(stored_state_path, "rb") as stored_state:
3098
if sys.version_info.major == 2:
3099
clients_data, old_client_settings = pickle.load(
3100
stored_state)
3101
else:
3102
bytes_clients_data, bytes_old_client_settings = (
3103
pickle.load(stored_state, encoding="bytes"))
3104
# Fix bytes to strings
3105
# clients_data
3106
# .keys()
3107
clients_data = {(key.decode("utf-8")
3108
if isinstance(key, bytes)
3109
else key): value
3110
for key, value in
3111
bytes_clients_data.items()}
3112
del bytes_clients_data
3113
for key in clients_data:
3114
value = {(k.decode("utf-8")
3115
if isinstance(k, bytes) else k): v
3116
for k, v in
3117
clients_data[key].items()}
3118
clients_data[key] = value
3119
# .client_structure
3120
value["client_structure"] = [
3121
(s.decode("utf-8")
3122
if isinstance(s, bytes)
3123
else s) for s in
3124
value["client_structure"]]
3125
# .name & .host
3126
for k in ("name", "host"):
3127
if isinstance(value[k], bytes):
3128
value[k] = value[k].decode("utf-8")
3129
# old_client_settings
3130
# .keys()
3131
old_client_settings = {
3132
(key.decode("utf-8")
3133
if isinstance(key, bytes)
3134
else key): value
3135
for key, value in
3136
bytes_old_client_settings.items()}
3137
del bytes_old_client_settings
3138
# .host
3139
for value in old_client_settings.values():
3140
if isinstance(value["host"], bytes):
3141
value["host"] = (value["host"]
3142
.decode("utf-8"))
3143
os.remove(stored_state_path)
3144
except IOError as e:
3145
if e.errno == errno.ENOENT:
3146
logger.warning("Could not load persistent state:"
3147
" {}".format(os.strerror(e.errno)))
3148
else:
3149
logger.critical("Could not load persistent state:",
3150
exc_info=e)
3151
raise
3152
except EOFError as e:
3153
logger.warning("Could not load persistent state: "
3154
"EOFError:",
3155
exc_info=e)
3156
3157
with PGPEngine() as pgp:
3158
for client_name, client in clients_data.items():
3159
# Skip removed clients
3160
if client_name not in client_settings:
3161
continue
3162
3163
# Decide which value to use after restoring saved state.
3164
# We have three different values: Old config file,
3165
# new config file, and saved state.
3166
# New config value takes precedence if it differs from old
3167
# config value, otherwise use saved state.
3168
for name, value in client_settings[client_name].items():
3169
try:
3170
# For each value in new config, check if it
3171
# differs from the old config value (Except for
3172
# the "secret" attribute)
3173
if (name != "secret"
3174
and (value !=
3175
old_client_settings[client_name][name])):
3176
client[name] = value
3177
except KeyError:
3178
pass
3179
3180
# Clients who has passed its expire date can still be
3181
# enabled if its last checker was successful. A Client
3182
# whose checker succeeded before we stored its state is
3183
# assumed to have successfully run all checkers during
3184
# downtime.
3185
if client["enabled"]:
3186
if datetime.datetime.utcnow() >= client["expires"]:
3187
if not client["last_checked_ok"]:
3188
logger.warning(
3189
"disabling client {} - Client never "
3190
"performed a successful checker".format(
3191
client_name))
3192
client["enabled"] = False
3193
elif client["last_checker_status"] != 0:
3194
logger.warning(
3195
"disabling client {} - Client last"
3196
" checker failed with error code"
3197
" {}".format(
3198
client_name,
3199
client["last_checker_status"]))
3200
client["enabled"] = False
3201
else:
3202
client["expires"] = (
3203
datetime.datetime.utcnow()
3204
+ client["timeout"])
3205
logger.debug("Last checker succeeded,"
3206
" keeping {} enabled".format(
3207
client_name))
1883
client_class = functools.partial(ClientDBus, bus = bus)
1884
def client_config_items(config, section):
1885
special_settings = {
1886
"approved_by_default":
1887
lambda: config.getboolean(section,
1888
"approved_by_default"),
1889
}
1890
for name, value in config.items(section):
3208
1891
try:
3209
client["secret"] = pgp.decrypt(
3210
client["encrypted_secret"],
3211
client_settings[client_name]["secret"])
3212
except PGPError:
3213
# If decryption fails, we use secret from new settings
3214
logger.debug("Failed to decrypt {} old secret".format(
3215
client_name))
3216
client["secret"] = (client_settings[client_name]
3217
["secret"])
3218
3219
# Add/remove clients based on new changes made to config
3220
for client_name in (set(old_client_settings)
3221
- set(client_settings)):
3222
del clients_data[client_name]
3223
for client_name in (set(client_settings)
3224
- set(old_client_settings)):
3225
clients_data[client_name] = client_settings[client_name]
3226
3227
# Create all client objects
3228
for client_name, client in clients_data.items():
3229
tcp_server.clients[client_name] = client_class(
3230
name=client_name,
3231
settings=client,
3232
server_settings=server_settings)
3233
1892
yield (name, special_settings[name]())
1893
except KeyError:
1894
yield (name, value)
1895
1896
tcp_server.clients.update(set(
1897
client_class(name = section,
1898
config= dict(client_config_items(
1899
client_config, section)))
1900
for section in client_config.sections()))
3234
1901
if not tcp_server.clients:
3235
logger.warning("No clients defined")
3236
3237
if not foreground:
3238
if pidfile is not None:
3239
pid = os.getpid()
3240
try:
3241
with pidfile:
3242
print(pid, file=pidfile)
3243
except IOError:
3244
logger.error("Could not write to file %r with PID %d",
3245
pidfilename, pid)
3246
del pidfile
1902
logger.warning(u"No clients defined")
1903
1904
if not debug:
1905
try:
1906
with pidfile:
1907
pid = os.getpid()
1908
pidfile.write(str(pid) + "\n")
1909
del pidfile
1910
except IOError:
1911
logger.error(u"Could not write to file %r with PID %d",
1912
pidfilename, pid)
1913
except NameError:
1914
# "pidfile" was never created
1915
pass
3247
1916
del pidfilename
3248
3249
for termsig in (signal.SIGHUP, signal.SIGTERM):
3250
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3251
lambda: main_loop.quit() and False)
3252
1917
1918
signal.signal(signal.SIGINT, signal.SIG_IGN)
1919
1920
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1921
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1922
3253
1923
if use_dbus:
3254
3255
@alternate_dbus_interfaces(
3256
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3257
class MandosDBusService(DBusObjectWithObjectManager):
1924
class MandosDBusService(dbus.service.Object):
3258
1925
"""A D-Bus proxy object"""
3259
3260
1926
def __init__(self):
3261
dbus.service.Object.__init__(self, bus, "/")
3262
3263
_interface = "se.recompile.Mandos"
3264
3265
@dbus.service.signal(_interface, signature="o")
1927
dbus.service.Object.__init__(self, bus, u"/")
1928
_interface = u"se.bsnet.fukt.Mandos"
1929
1930
@dbus.service.signal(_interface, signature=u"o")
3266
1931
def ClientAdded(self, objpath):
3267
1932
"D-Bus signal"
3268
1933
pass
3269
3270
@dbus.service.signal(_interface, signature="ss")
1934
1935
@dbus.service.signal(_interface, signature=u"ss")
3271
1936
def ClientNotFound(self, fingerprint, address):
3272
1937
"D-Bus signal"
3273
1938
pass
3274
3275
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3276
"true"})
3277
@dbus.service.signal(_interface, signature="os")
1939
1940
@dbus.service.signal(_interface, signature=u"os")
3278
1941
def ClientRemoved(self, objpath, name):
3279
1942
"D-Bus signal"
3280
1943
pass
3281
3282
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3283
"true"})
3284
@dbus.service.method(_interface, out_signature="ao")
1944
1945
@dbus.service.method(_interface, out_signature=u"ao")
3285
1946
def GetAllClients(self):
3286
1947
"D-Bus method"
3287
return dbus.Array(c.dbus_object_path for c in
3288
tcp_server.clients.values())
3289
3290
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3291
"true"})
1948
return dbus.Array(c.dbus_object_path
1949
for c in tcp_server.clients)
1950
3292
1951
@dbus.service.method(_interface,
3293
out_signature="a{oa{sv}}")
1952
out_signature=u"a{oa{sv}}")
3294
1953
def GetAllClientsWithProperties(self):
3295
1954
"D-Bus method"
3296
1955
return dbus.Dictionary(
3297
{c.dbus_object_path: c.GetAll(
3298
"se.recompile.Mandos.Client")
3299
for c in tcp_server.clients.values()},
3300
signature="oa{sv}")
3301
3302
@dbus.service.method(_interface, in_signature="o")
1956
((c.dbus_object_path, c.GetAll(u""))
1957
for c in tcp_server.clients),
1958
signature=u"oa{sv}")
1959
1960
@dbus.service.method(_interface, in_signature=u"o")
3303
1961
def RemoveClient(self, object_path):
3304
1962
"D-Bus method"
3305
for c in tcp_server.clients.values():
1963
for c in tcp_server.clients:
3306
1964
if c.dbus_object_path == object_path:
3307
del tcp_server.clients[c.name]
1965
tcp_server.clients.remove(c)
3308
1966
c.remove_from_connection()
3309
# Don't signal the disabling
1967
# Don't signal anything except ClientRemoved
3310
1968
c.disable(quiet=True)
3311
# Emit D-Bus signal for removal
3312
self.client_removed_signal(c)
1969
# Emit D-Bus signal
1970
self.ClientRemoved(object_path, c.name)
3313
1971
return
3314
1972
raise KeyError(object_path)
3315
1973
3316
1974
del _interface
3317
3318
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3319
out_signature="a{oa{sa{sv}}}")
3320
def GetManagedObjects(self):
3321
"""D-Bus method"""
3322
return dbus.Dictionary(
3323
{client.dbus_object_path:
3324
dbus.Dictionary(
3325
{interface: client.GetAll(interface)
3326
for interface in
3327
client._get_all_interface_names()})
3328
for client in tcp_server.clients.values()})
3329
3330
def client_added_signal(self, client):
3331
"""Send the new standard signal and the old signal"""
3332
if use_dbus:
3333
# New standard signal
3334
self.InterfacesAdded(
3335
client.dbus_object_path,
3336
dbus.Dictionary(
3337
{interface: client.GetAll(interface)
3338
for interface in
3339
client._get_all_interface_names()}))
3340
# Old signal
3341
self.ClientAdded(client.dbus_object_path)
3342
3343
def client_removed_signal(self, client):
3344
"""Send the new standard signal and the old signal"""
3345
if use_dbus:
3346
# New standard signal
3347
self.InterfacesRemoved(
3348
client.dbus_object_path,
3349
client._get_all_interface_names())
3350
# Old signal
3351
self.ClientRemoved(client.dbus_object_path,
3352
client.name)
3353
1975
3354
1976
mandos_dbus_service = MandosDBusService()
3355
3356
# Save modules to variables to exempt the modules from being
3357
# unloaded before the function registered with atexit() is run.
3358
mp = multiprocessing
3359
wn = wnull
3360
1977
3361
1978
def cleanup():
3362
1979
"Cleanup function; run on exit"
3363
if zeroconf:
3364
service.cleanup()
3365
3366
mp.active_children()
3367
wn.close()
3368
if not (tcp_server.clients or client_settings):
3369
return
3370
3371
# Store client before exiting. Secrets are encrypted with key
3372
# based on what config file has. If config file is
3373
# removed/edited, old secret will thus be unrecovable.
3374
clients = {}
3375
with PGPEngine() as pgp:
3376
for client in tcp_server.clients.values():
3377
key = client_settings[client.name]["secret"]
3378
client.encrypted_secret = pgp.encrypt(client.secret,
3379
key)
3380
client_dict = {}
3381
3382
# A list of attributes that can not be pickled
3383
# + secret.
3384
exclude = {"bus", "changedstate", "secret",
3385
"checker", "server_settings"}
3386
for name, typ in inspect.getmembers(dbus.service
3387
.Object):
3388
exclude.add(name)
3389
3390
client_dict["encrypted_secret"] = (client
3391
.encrypted_secret)
3392
for attr in client.client_structure:
3393
if attr not in exclude:
3394
client_dict[attr] = getattr(client, attr)
3395
3396
clients[client.name] = client_dict
3397
del client_settings[client.name]["secret"]
3398
3399
try:
3400
with tempfile.NamedTemporaryFile(
3401
mode='wb',
3402
suffix=".pickle",
3403
prefix='clients-',
3404
dir=os.path.dirname(stored_state_path),
3405
delete=False) as stored_state:
3406
pickle.dump((clients, client_settings), stored_state,
3407
protocol=2)
3408
tempname = stored_state.name
3409
os.rename(tempname, stored_state_path)
3410
except (IOError, OSError) as e:
3411
if not debug:
3412
try:
3413
os.remove(tempname)
3414
except NameError:
3415
pass
3416
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3417
logger.warning("Could not save persistent state: {}"
3418
.format(os.strerror(e.errno)))
3419
else:
3420
logger.warning("Could not save persistent state:",
3421
exc_info=e)
3422
raise
3423
3424
# Delete all clients, and settings from config
1980
service.cleanup()
1981
3425
1982
while tcp_server.clients:
3426
name, client = tcp_server.clients.popitem()
1983
client = tcp_server.clients.pop()
3427
1984
if use_dbus:
3428
1985
client.remove_from_connection()
3429
# Don't signal the disabling
1986
client.disable_hook = None
1987
# Don't signal anything except ClientRemoved
3430
1988
client.disable(quiet=True)
3431
# Emit D-Bus signal for removal
3432
1989
if use_dbus:
3433
mandos_dbus_service.client_removed_signal(client)
3434
client_settings.clear()
3435
1990
# Emit D-Bus signal
1991
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
1992
client.name)
1993
3436
1994
atexit.register(cleanup)
3437
3438
for client in tcp_server.clients.values():
1995
1996
for client in tcp_server.clients:
3439
1997
if use_dbus:
3440
# Emit D-Bus signal for adding
3441
mandos_dbus_service.client_added_signal(client)
3442
# Need to initiate checking of clients
3443
if client.enabled:
3444
client.init_checker()
3445
1998
# Emit D-Bus signal
1999
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2000
client.enable()
2001
3446
2002
tcp_server.enable()
3447
2003
tcp_server.server_activate()
3448
2004
3449
2005
# Find out what port we got
3450
if zeroconf:
3451
service.port = tcp_server.socket.getsockname()[1]
2006
service.port = tcp_server.socket.getsockname()[1]
3452
2007
if use_ipv6:
3453
logger.info("Now listening on address %r, port %d,"
3454
" flowinfo %d, scope_id %d",
3455
*tcp_server.socket.getsockname())
2008
logger.info(u"Now listening on address %r, port %d,"
2009
" flowinfo %d, scope_id %d"
2010
% tcp_server.socket.getsockname())
3456
2011
else: # IPv4
3457
logger.info("Now listening on address %r, port %d",
3458
*tcp_server.socket.getsockname())
3459
3460
# service.interface = tcp_server.socket.getsockname()[3]
3461
2012
logger.info(u"Now listening on address %r, port %d"
2013
% tcp_server.socket.getsockname())
2014
2015
#service.interface = tcp_server.socket.getsockname()[3]
2016
3462
2017
try:
3463
if zeroconf:
3464
# From the Avahi example code
3465
try:
3466
service.activate()
3467
except dbus.exceptions.DBusException as error:
3468
logger.critical("D-Bus Exception", exc_info=error)
3469
cleanup()
3470
sys.exit(1)
3471
# End of Avahi example code
3472
3473
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3474
lambda *args, **kwargs:
3475
(tcp_server.handle_request
3476
(*args[2:], **kwargs) or True))
3477
3478
logger.debug("Starting main loop")
2018
# From the Avahi example code
2019
try:
2020
service.activate()
2021
except dbus.exceptions.DBusException, error:
2022
logger.critical(u"DBusException: %s", error)
2023
cleanup()
2024
sys.exit(1)
2025
# End of Avahi example code
2026
2027
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2028
lambda *args, **kwargs:
2029
(tcp_server.handle_request
2030
(*args[2:], **kwargs) or True))
2031
2032
logger.debug(u"Starting main loop")
3479
2033
main_loop.run()
3480
except AvahiError as error:
3481
logger.critical("Avahi Error", exc_info=error)
2034
except AvahiError, error:
2035
logger.critical(u"AvahiError: %s", error)
3482
2036
cleanup()
3483
2037
sys.exit(1)
3484
2038
except KeyboardInterrupt:
3485
2039
if debug:
3486
print("", file=sys.stderr)
3487
logger.debug("Server received KeyboardInterrupt")
3488
logger.debug("Server exiting")
2040
print >> sys.stderr
2041
logger.debug(u"Server received KeyboardInterrupt")
2042
logger.debug(u"Server exiting")
3489
2043
# Must run before the D-Bus bus name gets deregistered
3490
2044
cleanup()
3491
2045
3492
3493
2046
if __name__ == '__main__':
3494
2047
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0