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- Committer: Teddy Hogeborn
- Date: 2024-11-17 16:53:00 UTC
- Revision ID: teddy@recompile.se-20241117165300-02hxm96s8cj9528e
mandos: Avoid closing configured server network socket
If we are passed a pre-created created network socket as a file
descriptor, we must avoid later closing it (when stdin, stdout and
stderr are dup2()ed over with /dev/null) by making sure that the
network file descriptor is not 0, 1, or 2, by creating a new file
descriptor if necessary.
However, when we create a new file descriptor we must check that the
new file descriptor is not 0, 1, or 2 either, and try again until we
get a suitable file descriptor.
If we are passed a pre-created created network socket as a file
descriptor, we must avoid later closing it (when stdin, stdout and
stderr are dup2()ed over with /dev/null) by making sure that the
network file descriptor is not 0, 1, or 2, by creating a new file
descriptor if necessary.
However, when we create a new file descriptor we must check that the
new file descriptor is not 0, 1, or 2 either, and try again until we
get a suitable file descriptor.
- files added:
- bugs.xml
- debian/tests
- dracut-module
- plugin-helpers
- files removed:
- initramfs-tools-hook-conf
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
1
#!/usr/bin/python3 -bI
2
# -*- coding: utf-8; lexical-binding: t -*-
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 © 2008-2014 Teddy Hogeborn
15
# Copyright © 2008-2014 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2022 Teddy Hogeborn
15
# Copyright © 2008-2022 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
19
21
# the Free Software Foundation, either version 3 of the License, or
20
22
# (at your option) any later version.
21
23
#
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
24
26
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25
27
# GNU General Public License for more details.
26
#
28
#
27
29
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
31
32
# Contact the authors at <mandos@recompile.se>.
32
#
33
33
#
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
37
try:
38
from future_builtins import *
39
except ImportError:
40
pass
38
41
39
import SocketServer as socketserver
42
import sys
43
import unittest
44
import argparse
45
import logging
46
import os
47
try:
48
import SocketServer as socketserver
49
except ImportError:
50
import socketserver
40
51
import socket
41
import argparse
42
52
import datetime
43
53
import errno
44
import gnutls.crypto
45
import gnutls.connection
46
import gnutls.errors
47
import gnutls.library.functions
48
import gnutls.library.constants
49
import gnutls.library.types
50
import ConfigParser as configparser
51
import sys
54
try:
55
import ConfigParser as configparser
56
except ImportError:
57
import configparser
52
58
import re
53
import os
54
59
import signal
55
60
import subprocess
56
61
import atexit
57
62
import stat
58
import logging
59
63
import logging.handlers
60
64
import pwd
61
65
import contextlib
62
66
import struct
63
67
import fcntl
64
68
import functools
65
import cPickle as pickle
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
66
73
import multiprocessing
67
74
import types
68
75
import binascii
69
76
import tempfile
70
77
import itertools
71
78
import collections
79
import codecs
80
import random
81
import shlex
72
82
73
83
import dbus
74
84
import dbus.service
75
import gobject
76
import avahi
85
import gi
86
from gi.repository import GLib
77
87
from dbus.mainloop.glib import DBusGMainLoop
78
88
import ctypes
79
89
import ctypes.util
80
90
import xml.dom.minidom
81
91
import inspect
82
92
83
try:
93
if sys.version_info.major == 2:
94
__metaclass__ = type
95
str = unicode
96
input = raw_input
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
84
122
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
85
123
except AttributeError:
86
124
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
87
127
from IN import SO_BINDTODEVICE
88
128
except ImportError:
89
SO_BINDTODEVICE = None
90
91
version = "1.6.5"
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.17"
92
147
stored_state_file = "clients.pickle"
93
148
94
logger = logging.getLogger()
149
log = logging.getLogger(os.path.basename(sys.argv[0]))
150
logging.captureWarnings(True) # Show warnings via the logging system
95
151
syslogger = None
96
152
97
153
try:
98
if_nametoindex = (ctypes.cdll.LoadLibrary
99
(ctypes.util.find_library("c"))
100
.if_nametoindex)
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
101
156
except (OSError, AttributeError):
157
102
158
def if_nametoindex(interface):
103
159
"Get an interface index the hard way, i.e. using fcntl()"
104
160
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
105
161
with contextlib.closing(socket.socket()) as s:
106
162
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
107
struct.pack(str("16s16x"),
108
interface))
109
interface_index = struct.unpack(str("I"),
110
ifreq[16:20])[0]
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
111
165
return interface_index
112
166
113
167
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
114
184
def initlogger(debug, level=logging.WARNING):
115
185
"""init logger and add loglevel"""
116
117
syslogger = (logging.handlers.SysLogHandler
118
(facility =
119
logging.handlers.SysLogHandler.LOG_DAEMON,
120
address = str("/dev/log")))
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
121
191
syslogger.setFormatter(logging.Formatter
122
('Mandos [%(process)d]: %(levelname)s:'
123
' %(message)s'))
124
logger.addHandler(syslogger)
125
192
("Mandos [%(process)d]: %(levelname)s:"
193
" %(message)s"))
194
log.addHandler(syslogger)
195
126
196
if debug:
127
197
console = logging.StreamHandler()
128
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
129
' [%(process)d]:'
130
' %(levelname)s:'
131
' %(message)s'))
132
logger.addHandler(console)
133
logger.setLevel(level)
198
console.setFormatter(logging.Formatter("%(asctime)s %(name)s"
199
" [%(process)d]:"
200
" %(levelname)s:"
201
" %(message)s"))
202
log.addHandler(console)
203
log.setLevel(level)
134
204
135
205
136
206
class PGPError(Exception):
138
208
pass
139
209
140
210
141
class PGPEngine(object):
211
class PGPEngine:
142
212
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
143
214
def __init__(self):
144
215
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
145
self.gnupgargs = ['--batch',
146
'--home', self.tempdir,
147
'--force-mdc',
148
'--quiet',
149
'--no-use-agent']
150
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ["--batch",
228
"--homedir", self.tempdir,
229
"--force-mdc",
230
"--quiet"]
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
151
235
def __enter__(self):
152
236
return self
153
237
154
238
def __exit__(self, exc_type, exc_value, traceback):
155
239
self._cleanup()
156
240
return False
157
241
158
242
def __del__(self):
159
243
self._cleanup()
160
244
161
245
def _cleanup(self):
162
246
if self.tempdir is not None:
163
247
# Delete contents of tempdir
164
248
for root, dirs, files in os.walk(self.tempdir,
165
topdown = False):
249
topdown=False):
166
250
for filename in files:
167
251
os.remove(os.path.join(root, filename))
168
252
for dirname in dirs:
170
254
# Remove tempdir
171
255
os.rmdir(self.tempdir)
172
256
self.tempdir = None
173
257
174
258
def password_encode(self, password):
175
259
# Passphrase can not be empty and can not contain newlines or
176
260
# NUL bytes. So we prefix it and hex encode it.
181
265
.replace(b"\n", b"\\n")
182
266
.replace(b"\0", b"\\x00"))
183
267
return encoded
184
268
185
269
def encrypt(self, data, password):
186
270
passphrase = self.password_encode(password)
187
with tempfile.NamedTemporaryFile(dir=self.tempdir
188
) as passfile:
271
with tempfile.NamedTemporaryFile(
272
dir=self.tempdir) as passfile:
189
273
passfile.write(passphrase)
190
274
passfile.flush()
191
proc = subprocess.Popen(['gpg', '--symmetric',
192
'--passphrase-file',
275
proc = subprocess.Popen([self.gpg, "--symmetric",
276
"--passphrase-file",
193
277
passfile.name]
194
278
+ self.gnupgargs,
195
stdin = subprocess.PIPE,
196
stdout = subprocess.PIPE,
197
stderr = subprocess.PIPE)
198
ciphertext, err = proc.communicate(input = data)
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
199
283
if proc.returncode != 0:
200
284
raise PGPError(err)
201
285
return ciphertext
202
286
203
287
def decrypt(self, data, password):
204
288
passphrase = self.password_encode(password)
205
with tempfile.NamedTemporaryFile(dir = self.tempdir
206
) as passfile:
289
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
207
291
passfile.write(passphrase)
208
292
passfile.flush()
209
proc = subprocess.Popen(['gpg', '--decrypt',
210
'--passphrase-file',
293
proc = subprocess.Popen([self.gpg, "--decrypt",
294
"--passphrase-file",
211
295
passfile.name]
212
296
+ self.gnupgargs,
213
stdin = subprocess.PIPE,
214
stdout = subprocess.PIPE,
215
stderr = subprocess.PIPE)
216
decrypted_plaintext, err = proc.communicate(input
217
= data)
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
218
301
if proc.returncode != 0:
219
302
raise PGPError(err)
220
303
return decrypted_plaintext
221
304
222
305
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
331
223
332
class AvahiError(Exception):
224
333
def __init__(self, value, *args, **kwargs):
225
334
self.value = value
226
super(AvahiError, self).__init__(value, *args, **kwargs)
227
def __unicode__(self):
228
return unicode(repr(self.value))
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
229
338
230
339
class AvahiServiceError(AvahiError):
231
340
pass
232
341
342
233
343
class AvahiGroupError(AvahiError):
234
344
pass
235
345
236
346
237
class AvahiService(object):
347
class AvahiService:
238
348
"""An Avahi (Zeroconf) service.
239
349
240
350
Attributes:
241
351
interface: integer; avahi.IF_UNSPEC or an interface index.
242
352
Used to optionally bind to the specified interface.
243
name: string; Example: 'Mandos'
244
type: string; Example: '_mandos._tcp'.
353
name: string; Example: "Mandos"
354
type: string; Example: "_mandos._tcp".
245
355
See <https://www.iana.org/assignments/service-names-port-numbers>
246
356
port: integer; what port to announce
247
357
TXT: list of strings; TXT record for the service
254
364
server: D-Bus Server
255
365
bus: dbus.SystemBus()
256
366
"""
257
258
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
259
servicetype = None, port = None, TXT = None,
260
domain = "", host = "", max_renames = 32768,
261
protocol = avahi.PROTO_UNSPEC, bus = None):
367
368
def __init__(self,
369
interface=avahi.IF_UNSPEC,
370
name=None,
371
servicetype=None,
372
port=None,
373
TXT=None,
374
domain="",
375
host="",
376
max_renames=32768,
377
protocol=avahi.PROTO_UNSPEC,
378
bus=None):
262
379
self.interface = interface
263
380
self.name = name
264
381
self.type = servicetype
273
390
self.server = None
274
391
self.bus = bus
275
392
self.entry_group_state_changed_match = None
276
277
def rename(self):
393
394
def rename(self, remove=True):
278
395
"""Derived from the Avahi example code"""
279
396
if self.rename_count >= self.max_renames:
280
logger.critical("No suitable Zeroconf service name found"
281
" after %i retries, exiting.",
282
self.rename_count)
397
log.critical("No suitable Zeroconf service name found"
398
" after %i retries, exiting.",
399
self.rename_count)
283
400
raise AvahiServiceError("Too many renames")
284
self.name = unicode(self.server
285
.GetAlternativeServiceName(self.name))
286
logger.info("Changing Zeroconf service name to %r ...",
287
self.name)
288
self.remove()
289
try:
290
self.add()
291
except dbus.exceptions.DBusException as error:
292
logger.critical("D-Bus Exception", exc_info=error)
293
self.cleanup()
294
os._exit(1)
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
295
403
self.rename_count += 1
296
404
log.info("Changing Zeroconf service name to %r ...",
405
self.name)
406
if remove:
407
self.remove()
408
try:
409
self.add()
410
except dbus.exceptions.DBusException as error:
411
if (error.get_dbus_name()
412
== "org.freedesktop.Avahi.CollisionError"):
413
log.info("Local Zeroconf service name collision.")
414
return self.rename(remove=False)
415
else:
416
log.critical("D-Bus Exception", exc_info=error)
417
self.cleanup()
418
os._exit(1)
419
297
420
def remove(self):
298
421
"""Derived from the Avahi example code"""
299
422
if self.entry_group_state_changed_match is not None:
301
424
self.entry_group_state_changed_match = None
302
425
if self.group is not None:
303
426
self.group.Reset()
304
427
305
428
def add(self):
306
429
"""Derived from the Avahi example code"""
307
430
self.remove()
312
435
avahi.DBUS_INTERFACE_ENTRY_GROUP)
313
436
self.entry_group_state_changed_match = (
314
437
self.group.connect_to_signal(
315
'StateChanged', self.entry_group_state_changed))
316
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
317
self.name, self.type)
438
"StateChanged", self.entry_group_state_changed))
439
log.debug("Adding Zeroconf service '%s' of type '%s' ...",
440
self.name, self.type)
318
441
self.group.AddService(
319
442
self.interface,
320
443
self.protocol,
324
447
dbus.UInt16(self.port),
325
448
avahi.string_array_to_txt_array(self.TXT))
326
449
self.group.Commit()
327
450
328
451
def entry_group_state_changed(self, state, error):
329
452
"""Derived from the Avahi example code"""
330
logger.debug("Avahi entry group state change: %i", state)
331
453
log.debug("Avahi entry group state change: %i", state)
454
332
455
if state == avahi.ENTRY_GROUP_ESTABLISHED:
333
logger.debug("Zeroconf service established.")
456
log.debug("Zeroconf service established.")
334
457
elif state == avahi.ENTRY_GROUP_COLLISION:
335
logger.info("Zeroconf service name collision.")
458
log.info("Zeroconf service name collision.")
336
459
self.rename()
337
460
elif state == avahi.ENTRY_GROUP_FAILURE:
338
logger.critical("Avahi: Error in group state changed %s",
339
unicode(error))
340
raise AvahiGroupError("State changed: {0!s}"
341
.format(error))
342
461
log.critical("Avahi: Error in group state changed %s",
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
343
465
def cleanup(self):
344
466
"""Derived from the Avahi example code"""
345
467
if self.group is not None:
350
472
pass
351
473
self.group = None
352
474
self.remove()
353
475
354
476
def server_state_changed(self, state, error=None):
355
477
"""Derived from the Avahi example code"""
356
logger.debug("Avahi server state change: %i", state)
357
bad_states = { avahi.SERVER_INVALID:
358
"Zeroconf server invalid",
359
avahi.SERVER_REGISTERING: None,
360
avahi.SERVER_COLLISION:
361
"Zeroconf server name collision",
362
avahi.SERVER_FAILURE:
363
"Zeroconf server failure" }
478
log.debug("Avahi server state change: %i", state)
479
bad_states = {
480
avahi.SERVER_INVALID: "Zeroconf server invalid",
481
avahi.SERVER_REGISTERING: None,
482
avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
avahi.SERVER_FAILURE: "Zeroconf server failure",
484
}
364
485
if state in bad_states:
365
486
if bad_states[state] is not None:
366
487
if error is None:
367
logger.error(bad_states[state])
488
log.error(bad_states[state])
368
489
else:
369
logger.error(bad_states[state] + ": %r", error)
490
log.error(bad_states[state] + ": %r", error)
370
491
self.cleanup()
371
492
elif state == avahi.SERVER_RUNNING:
372
self.add()
493
try:
494
self.add()
495
except dbus.exceptions.DBusException as error:
496
if (error.get_dbus_name()
497
== "org.freedesktop.Avahi.CollisionError"):
498
log.info("Local Zeroconf service name collision.")
499
return self.rename(remove=False)
500
else:
501
log.critical("D-Bus Exception", exc_info=error)
502
self.cleanup()
503
os._exit(1)
373
504
else:
374
505
if error is None:
375
logger.debug("Unknown state: %r", state)
506
log.debug("Unknown state: %r", state)
376
507
else:
377
logger.debug("Unknown state: %r: %r", state, error)
378
508
log.debug("Unknown state: %r: %r", state, error)
509
379
510
def activate(self):
380
511
"""Derived from the Avahi example code"""
381
512
if self.server is None:
385
516
follow_name_owner_changes=True),
386
517
avahi.DBUS_INTERFACE_SERVER)
387
518
self.server.connect_to_signal("StateChanged",
388
self.server_state_changed)
519
self.server_state_changed)
389
520
self.server_state_changed(self.server.GetState())
390
521
391
522
392
523
class AvahiServiceToSyslog(AvahiService):
393
def rename(self):
524
def rename(self, *args, **kwargs):
394
525
"""Add the new name to the syslog messages"""
395
ret = AvahiService.rename(self)
396
syslogger.setFormatter(logging.Formatter
397
('Mandos ({0}) [%(process)d]:'
398
' %(levelname)s: %(message)s'
399
.format(self.name)))
526
ret = super(AvahiServiceToSyslog, self).rename(*args,
527
**kwargs)
528
syslogger.setFormatter(logging.Formatter(
529
"Mandos ({}) [%(process)d]: %(levelname)s: %(message)s"
530
.format(self.name)))
400
531
return ret
401
532
402
533
403
def timedelta_to_milliseconds(td):
404
"Convert a datetime.timedelta() to milliseconds"
405
return ((td.days * 24 * 60 * 60 * 1000)
406
+ (td.seconds * 1000)
407
+ (td.microseconds // 1000))
408
409
410
class Client(object):
534
# Pretend that we have a GnuTLS module
535
class gnutls:
536
"""This isn't so much a class as it is a module-like namespace."""
537
538
library = ctypes.util.find_library("gnutls")
539
if library is None:
540
library = ctypes.util.find_library("gnutls-deb0")
541
_library = ctypes.cdll.LoadLibrary(library)
542
del library
543
544
# Unless otherwise indicated, the constants and types below are
545
# all from the gnutls/gnutls.h C header file.
546
547
# Constants
548
E_SUCCESS = 0
549
E_INTERRUPTED = -52
550
E_AGAIN = -28
551
CRT_OPENPGP = 2
552
CRT_RAWPK = 3
553
CLIENT = 2
554
SHUT_RDWR = 0
555
CRD_CERTIFICATE = 1
556
E_NO_CERTIFICATE_FOUND = -49
557
X509_FMT_DER = 0
558
NO_TICKETS = 1<<10
559
ENABLE_RAWPK = 1<<18
560
CTYPE_PEERS = 3
561
KEYID_USE_SHA256 = 1 # gnutls/x509.h
562
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
563
564
# Types
565
class _session_int(ctypes.Structure):
566
_fields_ = []
567
session_t = ctypes.POINTER(_session_int)
568
569
class certificate_credentials_st(ctypes.Structure):
570
_fields_ = []
571
certificate_credentials_t = ctypes.POINTER(
572
certificate_credentials_st)
573
certificate_type_t = ctypes.c_int
574
575
class datum_t(ctypes.Structure):
576
_fields_ = [("data", ctypes.POINTER(ctypes.c_ubyte)),
577
("size", ctypes.c_uint)]
578
579
class _openpgp_crt_int(ctypes.Structure):
580
_fields_ = []
581
openpgp_crt_t = ctypes.POINTER(_openpgp_crt_int)
582
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
583
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
584
credentials_type_t = ctypes.c_int
585
transport_ptr_t = ctypes.c_void_p
586
close_request_t = ctypes.c_int
587
588
# Exceptions
589
class Error(Exception):
590
def __init__(self, message=None, code=None, args=()):
591
# Default usage is by a message string, but if a return
592
# code is passed, convert it to a string with
593
# gnutls.strerror()
594
self.code = code
595
if message is None and code is not None:
596
message = gnutls.strerror(code).decode(
597
"utf-8", errors="replace")
598
return super(gnutls.Error, self).__init__(
599
message, *args)
600
601
class CertificateSecurityError(Error):
602
pass
603
604
class PointerTo:
605
def __init__(self, cls):
606
self.cls = cls
607
608
def from_param(self, obj):
609
if not isinstance(obj, self.cls):
610
raise TypeError("Not of type {}: {!r}"
611
.format(self.cls.__name__, obj))
612
return ctypes.byref(obj.from_param(obj))
613
614
class CastToVoidPointer:
615
def __init__(self, cls):
616
self.cls = cls
617
618
def from_param(self, obj):
619
if not isinstance(obj, self.cls):
620
raise TypeError("Not of type {}: {!r}"
621
.format(self.cls.__name__, obj))
622
return ctypes.cast(obj.from_param(obj), ctypes.c_void_p)
623
624
class With_from_param:
625
@classmethod
626
def from_param(cls, obj):
627
return obj._as_parameter_
628
629
# Classes
630
class Credentials(With_from_param):
631
def __init__(self):
632
self._as_parameter_ = gnutls.certificate_credentials_t()
633
gnutls.certificate_allocate_credentials(self)
634
self.type = gnutls.CRD_CERTIFICATE
635
636
def __del__(self):
637
gnutls.certificate_free_credentials(self)
638
639
class ClientSession(With_from_param):
640
def __init__(self, socket, credentials=None):
641
self._as_parameter_ = gnutls.session_t()
642
gnutls_flags = gnutls.CLIENT
643
if gnutls.check_version(b"3.5.6"):
644
gnutls_flags |= gnutls.NO_TICKETS
645
if gnutls.has_rawpk:
646
gnutls_flags |= gnutls.ENABLE_RAWPK
647
gnutls.init(self, gnutls_flags)
648
del gnutls_flags
649
gnutls.set_default_priority(self)
650
gnutls.transport_set_ptr(self, socket.fileno())
651
gnutls.handshake_set_private_extensions(self, True)
652
self.socket = socket
653
if credentials is None:
654
credentials = gnutls.Credentials()
655
gnutls.credentials_set(self, credentials.type,
656
credentials)
657
self.credentials = credentials
658
659
def __del__(self):
660
gnutls.deinit(self)
661
662
def handshake(self):
663
return gnutls.handshake(self)
664
665
def send(self, data):
666
data = bytes(data)
667
data_len = len(data)
668
while data_len > 0:
669
data_len -= gnutls.record_send(self, data[-data_len:],
670
data_len)
671
672
def bye(self):
673
return gnutls.bye(self, gnutls.SHUT_RDWR)
674
675
# Error handling functions
676
def _error_code(result):
677
"""A function to raise exceptions on errors, suitable
678
for the "restype" attribute on ctypes functions"""
679
if result >= gnutls.E_SUCCESS:
680
return result
681
if result == gnutls.E_NO_CERTIFICATE_FOUND:
682
raise gnutls.CertificateSecurityError(code=result)
683
raise gnutls.Error(code=result)
684
685
def _retry_on_error(result, func, arguments,
686
_error_code=_error_code):
687
"""A function to retry on some errors, suitable
688
for the "errcheck" attribute on ctypes functions"""
689
while result < gnutls.E_SUCCESS:
690
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
691
return _error_code(result)
692
result = func(*arguments)
693
return result
694
695
# Unless otherwise indicated, the function declarations below are
696
# all from the gnutls/gnutls.h C header file.
697
698
# Functions
699
priority_set_direct = _library.gnutls_priority_set_direct
700
priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,
701
ctypes.POINTER(ctypes.c_char_p)]
702
priority_set_direct.restype = _error_code
703
704
init = _library.gnutls_init
705
init.argtypes = [PointerTo(ClientSession), ctypes.c_int]
706
init.restype = _error_code
707
708
set_default_priority = _library.gnutls_set_default_priority
709
set_default_priority.argtypes = [ClientSession]
710
set_default_priority.restype = _error_code
711
712
record_send = _library.gnutls_record_send
713
record_send.argtypes = [ClientSession, ctypes.c_void_p,
714
ctypes.c_size_t]
715
record_send.restype = ctypes.c_ssize_t
716
record_send.errcheck = _retry_on_error
717
718
certificate_allocate_credentials = (
719
_library.gnutls_certificate_allocate_credentials)
720
certificate_allocate_credentials.argtypes = [
721
PointerTo(Credentials)]
722
certificate_allocate_credentials.restype = _error_code
723
724
certificate_free_credentials = (
725
_library.gnutls_certificate_free_credentials)
726
certificate_free_credentials.argtypes = [Credentials]
727
certificate_free_credentials.restype = None
728
729
handshake_set_private_extensions = (
730
_library.gnutls_handshake_set_private_extensions)
731
handshake_set_private_extensions.argtypes = [ClientSession,
732
ctypes.c_int]
733
handshake_set_private_extensions.restype = None
734
735
credentials_set = _library.gnutls_credentials_set
736
credentials_set.argtypes = [ClientSession, credentials_type_t,
737
CastToVoidPointer(Credentials)]
738
credentials_set.restype = _error_code
739
740
strerror = _library.gnutls_strerror
741
strerror.argtypes = [ctypes.c_int]
742
strerror.restype = ctypes.c_char_p
743
744
certificate_type_get = _library.gnutls_certificate_type_get
745
certificate_type_get.argtypes = [ClientSession]
746
certificate_type_get.restype = _error_code
747
748
certificate_get_peers = _library.gnutls_certificate_get_peers
749
certificate_get_peers.argtypes = [ClientSession,
750
ctypes.POINTER(ctypes.c_uint)]
751
certificate_get_peers.restype = ctypes.POINTER(datum_t)
752
753
global_set_log_level = _library.gnutls_global_set_log_level
754
global_set_log_level.argtypes = [ctypes.c_int]
755
global_set_log_level.restype = None
756
757
global_set_log_function = _library.gnutls_global_set_log_function
758
global_set_log_function.argtypes = [log_func]
759
global_set_log_function.restype = None
760
761
deinit = _library.gnutls_deinit
762
deinit.argtypes = [ClientSession]
763
deinit.restype = None
764
765
handshake = _library.gnutls_handshake
766
handshake.argtypes = [ClientSession]
767
handshake.restype = ctypes.c_int
768
handshake.errcheck = _retry_on_error
769
770
transport_set_ptr = _library.gnutls_transport_set_ptr
771
transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]
772
transport_set_ptr.restype = None
773
774
bye = _library.gnutls_bye
775
bye.argtypes = [ClientSession, close_request_t]
776
bye.restype = ctypes.c_int
777
bye.errcheck = _retry_on_error
778
779
check_version = _library.gnutls_check_version
780
check_version.argtypes = [ctypes.c_char_p]
781
check_version.restype = ctypes.c_char_p
782
783
_need_version = b"3.3.0"
784
if check_version(_need_version) is None:
785
raise self.Error("Needs GnuTLS {} or later"
786
.format(_need_version))
787
788
_tls_rawpk_version = b"3.6.6"
789
has_rawpk = bool(check_version(_tls_rawpk_version))
790
791
if has_rawpk:
792
# Types
793
class pubkey_st(ctypes.Structure):
794
_fields = []
795
pubkey_t = ctypes.POINTER(pubkey_st)
796
797
x509_crt_fmt_t = ctypes.c_int
798
799
# All the function declarations below are from
800
# gnutls/abstract.h
801
pubkey_init = _library.gnutls_pubkey_init
802
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
803
pubkey_init.restype = _error_code
804
805
pubkey_import = _library.gnutls_pubkey_import
806
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
807
x509_crt_fmt_t]
808
pubkey_import.restype = _error_code
809
810
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
811
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
812
ctypes.POINTER(ctypes.c_ubyte),
813
ctypes.POINTER(ctypes.c_size_t)]
814
pubkey_get_key_id.restype = _error_code
815
816
pubkey_deinit = _library.gnutls_pubkey_deinit
817
pubkey_deinit.argtypes = [pubkey_t]
818
pubkey_deinit.restype = None
819
else:
820
# All the function declarations below are from
821
# gnutls/openpgp.h
822
823
openpgp_crt_init = _library.gnutls_openpgp_crt_init
824
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
825
openpgp_crt_init.restype = _error_code
826
827
openpgp_crt_import = _library.gnutls_openpgp_crt_import
828
openpgp_crt_import.argtypes = [openpgp_crt_t,
829
ctypes.POINTER(datum_t),
830
openpgp_crt_fmt_t]
831
openpgp_crt_import.restype = _error_code
832
833
openpgp_crt_verify_self = \
834
_library.gnutls_openpgp_crt_verify_self
835
openpgp_crt_verify_self.argtypes = [
836
openpgp_crt_t,
837
ctypes.c_uint,
838
ctypes.POINTER(ctypes.c_uint),
839
]
840
openpgp_crt_verify_self.restype = _error_code
841
842
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
843
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
844
openpgp_crt_deinit.restype = None
845
846
openpgp_crt_get_fingerprint = (
847
_library.gnutls_openpgp_crt_get_fingerprint)
848
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
849
ctypes.c_void_p,
850
ctypes.POINTER(
851
ctypes.c_size_t)]
852
openpgp_crt_get_fingerprint.restype = _error_code
853
854
if check_version(b"3.6.4"):
855
certificate_type_get2 = _library.gnutls_certificate_type_get2
856
certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]
857
certificate_type_get2.restype = _error_code
858
859
# Remove non-public functions
860
del _error_code, _retry_on_error
861
862
863
def call_pipe(connection, # : multiprocessing.Connection
864
func, *args, **kwargs):
865
"""This function is meant to be called by multiprocessing.Process
866
867
This function runs func(*args, **kwargs), and writes the resulting
868
return value on the provided multiprocessing.Connection.
869
"""
870
connection.send(func(*args, **kwargs))
871
connection.close()
872
873
874
class Client:
411
875
"""A representation of a client host served by this server.
412
876
413
877
Attributes:
414
approved: bool(); 'None' if not yet approved/disapproved
878
approved: bool(); None if not yet approved/disapproved
415
879
approval_delay: datetime.timedelta(); Time to wait for approval
416
880
approval_duration: datetime.timedelta(); Duration of one approval
417
checker: subprocess.Popen(); a running checker process used
418
to see if the client lives.
419
'None' if no process is running.
420
checker_callback_tag: a gobject event source tag, or None
881
checker: multiprocessing.Process(); a running checker process used
882
to see if the client lives. None if no process is
883
running.
884
checker_callback_tag: a GLib event source tag, or None
421
885
checker_command: string; External command which is run to check
422
886
if client lives. %() expansions are done at
423
887
runtime with vars(self) as dict, so that for
424
888
instance %(name)s can be used in the command.
425
checker_initiator_tag: a gobject event source tag, or None
889
checker_initiator_tag: a GLib event source tag, or None
426
890
created: datetime.datetime(); (UTC) object creation
427
891
client_structure: Object describing what attributes a client has
428
892
and is used for storing the client at exit
429
893
current_checker_command: string; current running checker_command
430
disable_initiator_tag: a gobject event source tag, or None
894
disable_initiator_tag: a GLib event source tag, or None
431
895
enabled: bool()
432
896
fingerprint: string (40 or 32 hexadecimal digits); used to
433
uniquely identify the client
897
uniquely identify an OpenPGP client
898
key_id: string (64 hexadecimal digits); used to uniquely identify
899
a client using raw public keys
434
900
host: string; available for use by the checker command
435
901
interval: datetime.timedelta(); How often to start a new checker
436
902
last_approval_request: datetime.datetime(); (UTC) or None
438
904
last_checker_status: integer between 0 and 255 reflecting exit
439
905
status of last checker. -1 reflects crashed
440
906
checker, -2 means no checker completed yet.
907
last_checker_signal: The signal which killed the last checker, if
908
last_checker_status is -1
441
909
last_enabled: datetime.datetime(); (UTC) or None
442
910
name: string; from the config file, used in log messages and
443
911
D-Bus identifiers
450
918
disabled, or None
451
919
server_settings: The server_settings dict from main()
452
920
"""
453
921
454
922
runtime_expansions = ("approval_delay", "approval_duration",
455
"created", "enabled", "expires",
923
"created", "enabled", "expires", "key_id",
456
924
"fingerprint", "host", "interval",
457
925
"last_approval_request", "last_checked_ok",
458
926
"last_enabled", "name", "timeout")
459
client_defaults = { "timeout": "PT5M",
460
"extended_timeout": "PT15M",
461
"interval": "PT2M",
462
"checker": "fping -q -- %%(host)s",
463
"host": "",
464
"approval_delay": "PT0S",
465
"approval_duration": "PT1S",
466
"approved_by_default": "True",
467
"enabled": "True",
468
}
469
470
def timeout_milliseconds(self):
471
"Return the 'timeout' attribute in milliseconds"
472
return timedelta_to_milliseconds(self.timeout)
473
474
def extended_timeout_milliseconds(self):
475
"Return the 'extended_timeout' attribute in milliseconds"
476
return timedelta_to_milliseconds(self.extended_timeout)
477
478
def interval_milliseconds(self):
479
"Return the 'interval' attribute in milliseconds"
480
return timedelta_to_milliseconds(self.interval)
481
482
def approval_delay_milliseconds(self):
483
return timedelta_to_milliseconds(self.approval_delay)
484
927
client_defaults = {
928
"timeout": "PT5M",
929
"extended_timeout": "PT15M",
930
"interval": "PT2M",
931
"checker": "fping -q -- %%(host)s",
932
"host": "",
933
"approval_delay": "PT0S",
934
"approval_duration": "PT1S",
935
"approved_by_default": "True",
936
"enabled": "True",
937
}
938
485
939
@staticmethod
486
940
def config_parser(config):
487
941
"""Construct a new dict of client settings of this form:
494
948
for client_name in config.sections():
495
949
section = dict(config.items(client_name))
496
950
client = settings[client_name] = {}
497
951
498
952
client["host"] = section["host"]
499
953
# Reformat values from string types to Python types
500
954
client["approved_by_default"] = config.getboolean(
501
955
client_name, "approved_by_default")
502
956
client["enabled"] = config.getboolean(client_name,
503
957
"enabled")
504
505
client["fingerprint"] = (section["fingerprint"].upper()
958
959
# Uppercase and remove spaces from key_id and fingerprint
960
# for later comparison purposes with return value from the
961
# key_id() and fingerprint() functions
962
client["key_id"] = (section.get("key_id", "").upper()
963
.replace(" ", ""))
964
client["fingerprint"] = (section.get("fingerprint",
965
"").upper()
506
966
.replace(" ", ""))
967
if not (client["key_id"] or client["fingerprint"]):
968
log.error("Skipping client %s without key_id or"
969
" fingerprint", client_name)
970
del settings[client_name]
971
continue
507
972
if "secret" in section:
508
client["secret"] = section["secret"].decode("base64")
973
client["secret"] = codecs.decode(section["secret"]
974
.encode("utf-8"),
975
"base64")
509
976
elif "secfile" in section:
510
977
with open(os.path.expanduser(os.path.expandvars
511
978
(section["secfile"])),
512
979
"rb") as secfile:
513
980
client["secret"] = secfile.read()
514
981
else:
515
raise TypeError("No secret or secfile for section {0}"
982
raise TypeError("No secret or secfile for section {}"
516
983
.format(section))
517
984
client["timeout"] = string_to_delta(section["timeout"])
518
985
client["extended_timeout"] = string_to_delta(
526
993
client["last_approval_request"] = None
527
994
client["last_checked_ok"] = None
528
995
client["last_checker_status"] = -2
529
996
530
997
return settings
531
532
def __init__(self, settings, name = None, server_settings=None):
998
999
def __init__(self, settings, name=None, server_settings=None):
533
1000
self.name = name
534
1001
if server_settings is None:
535
1002
server_settings = {}
536
1003
self.server_settings = server_settings
537
1004
# adding all client settings
538
for setting, value in settings.iteritems():
1005
for setting, value in settings.items():
539
1006
setattr(self, setting, value)
540
1007
541
1008
if self.enabled:
542
1009
if not hasattr(self, "last_enabled"):
543
1010
self.last_enabled = datetime.datetime.utcnow()
547
1014
else:
548
1015
self.last_enabled = None
549
1016
self.expires = None
550
551
logger.debug("Creating client %r", self.name)
552
# Uppercase and remove spaces from fingerprint for later
553
# comparison purposes with return value from the fingerprint()
554
# function
555
logger.debug(" Fingerprint: %s", self.fingerprint)
1017
1018
log.debug("Creating client %r", self.name)
1019
log.debug(" Key ID: %s", self.key_id)
1020
log.debug(" Fingerprint: %s", self.fingerprint)
556
1021
self.created = settings.get("created",
557
1022
datetime.datetime.utcnow())
558
1023
559
1024
# attributes specific for this server instance
560
1025
self.checker = None
561
1026
self.checker_initiator_tag = None
564
1029
self.current_checker_command = None
565
1030
self.approved = None
566
1031
self.approvals_pending = 0
567
self.changedstate = (multiprocessing_manager
568
.Condition(multiprocessing_manager
569
.Lock()))
570
self.client_structure = [attr for attr in
571
self.__dict__.iterkeys()
1032
self.changedstate = multiprocessing_manager.Condition(
1033
multiprocessing_manager.Lock())
1034
self.client_structure = [attr
1035
for attr in self.__dict__.keys()
572
1036
if not attr.startswith("_")]
573
1037
self.client_structure.append("client_structure")
574
575
for name, t in inspect.getmembers(type(self),
576
lambda obj:
577
isinstance(obj,
578
property)):
1038
1039
for name, t in inspect.getmembers(
1040
type(self), lambda obj: isinstance(obj, property)):
579
1041
if not name.startswith("_"):
580
1042
self.client_structure.append(name)
581
1043
582
1044
# Send notice to process children that client state has changed
583
1045
def send_changedstate(self):
584
1046
with self.changedstate:
585
1047
self.changedstate.notify_all()
586
1048
587
1049
def enable(self):
588
1050
"""Start this client's checker and timeout hooks"""
589
1051
if getattr(self, "enabled", False):
590
1052
# Already enabled
591
1053
return
592
self.expires = datetime.datetime.utcnow() + self.timeout
593
1054
self.enabled = True
594
1055
self.last_enabled = datetime.datetime.utcnow()
595
1056
self.init_checker()
596
1057
self.send_changedstate()
597
1058
598
1059
def disable(self, quiet=True):
599
1060
"""Disable this client."""
600
1061
if not getattr(self, "enabled", False):
601
1062
return False
602
1063
if not quiet:
603
logger.info("Disabling client %s", self.name)
1064
log.info("Disabling client %s", self.name)
604
1065
if getattr(self, "disable_initiator_tag", None) is not None:
605
gobject.source_remove(self.disable_initiator_tag)
1066
GLib.source_remove(self.disable_initiator_tag)
606
1067
self.disable_initiator_tag = None
607
1068
self.expires = None
608
1069
if getattr(self, "checker_initiator_tag", None) is not None:
609
gobject.source_remove(self.checker_initiator_tag)
1070
GLib.source_remove(self.checker_initiator_tag)
610
1071
self.checker_initiator_tag = None
611
1072
self.stop_checker()
612
1073
self.enabled = False
613
1074
if not quiet:
614
1075
self.send_changedstate()
615
# Do not run this again if called by a gobject.timeout_add
1076
# Do not run this again if called by a GLib.timeout_add
616
1077
return False
617
1078
618
1079
def __del__(self):
619
1080
self.disable()
620
621
def init_checker(self):
622
# Schedule a new checker to be started an 'interval' from now,
623
# and every interval from then on.
1081
1082
def init_checker(self, randomize_start=False):
1083
# Schedule a new checker to be started a randomly selected
1084
# time (a fraction of 'interval') from now. This spreads out
1085
# the startup of checkers over time when the server is
1086
# started.
624
1087
if self.checker_initiator_tag is not None:
625
gobject.source_remove(self.checker_initiator_tag)
626
self.checker_initiator_tag = (gobject.timeout_add
627
(self.interval_milliseconds(),
628
self.start_checker))
629
# Schedule a disable() when 'timeout' has passed
1088
GLib.source_remove(self.checker_initiator_tag)
1089
interval_milliseconds = int(self.interval.total_seconds()
1090
* 1000)
1091
if randomize_start:
1092
delay_milliseconds = random.randrange(
1093
interval_milliseconds + 1)
1094
else:
1095
delay_milliseconds = interval_milliseconds
1096
self.checker_initiator_tag = GLib.timeout_add(
1097
delay_milliseconds, self.start_checker, randomize_start)
1098
delay = datetime.timedelta(0, 0, 0, delay_milliseconds)
1099
# A checker might take up to an 'interval' of time, so we can
1100
# expire at the soonest one interval after a checker was
1101
# started. Since the initial checker is delayed, the expire
1102
# time might have to be extended.
1103
now = datetime.datetime.utcnow()
1104
self.expires = now + delay + self.interval
1105
# Schedule a disable() at expire time
630
1106
if self.disable_initiator_tag is not None:
631
gobject.source_remove(self.disable_initiator_tag)
632
self.disable_initiator_tag = (gobject.timeout_add
633
(self.timeout_milliseconds(),
634
self.disable))
635
# Also start a new checker *right now*.
636
self.start_checker()
637
638
def checker_callback(self, pid, condition, command):
1107
GLib.source_remove(self.disable_initiator_tag)
1108
self.disable_initiator_tag = GLib.timeout_add(
1109
int((self.expires - now).total_seconds() * 1000),
1110
self.disable)
1111
1112
def checker_callback(self, source, condition, connection,
1113
command):
639
1114
"""The checker has completed, so take appropriate actions."""
1115
# Read return code from connection (see call_pipe)
1116
returncode = connection.recv()
1117
connection.close()
1118
if self.checker is not None:
1119
self.checker.join()
640
1120
self.checker_callback_tag = None
641
1121
self.checker = None
642
if os.WIFEXITED(condition):
643
self.last_checker_status = os.WEXITSTATUS(condition)
1122
1123
if returncode >= 0:
1124
self.last_checker_status = returncode
1125
self.last_checker_signal = None
644
1126
if self.last_checker_status == 0:
645
logger.info("Checker for %(name)s succeeded",
646
vars(self))
1127
log.info("Checker for %(name)s succeeded", vars(self))
647
1128
self.checked_ok()
648
1129
else:
649
logger.info("Checker for %(name)s failed",
650
vars(self))
1130
log.info("Checker for %(name)s failed", vars(self))
651
1131
else:
652
1132
self.last_checker_status = -1
653
logger.warning("Checker for %(name)s crashed?",
654
vars(self))
655
1133
self.last_checker_signal = -returncode
1134
log.warning("Checker for %(name)s crashed?", vars(self))
1135
return False
1136
656
1137
def checked_ok(self):
657
1138
"""Assert that the client has been seen, alive and well."""
658
1139
self.last_checked_ok = datetime.datetime.utcnow()
659
1140
self.last_checker_status = 0
1141
self.last_checker_signal = None
660
1142
self.bump_timeout()
661
1143
662
1144
def bump_timeout(self, timeout=None):
663
1145
"""Bump up the timeout for this client."""
664
1146
if timeout is None:
665
1147
timeout = self.timeout
666
1148
if self.disable_initiator_tag is not None:
667
gobject.source_remove(self.disable_initiator_tag)
1149
GLib.source_remove(self.disable_initiator_tag)
668
1150
self.disable_initiator_tag = None
669
1151
if getattr(self, "enabled", False):
670
self.disable_initiator_tag = (gobject.timeout_add
671
(timedelta_to_milliseconds
672
(timeout), self.disable))
1152
self.disable_initiator_tag = GLib.timeout_add(
1153
int(timeout.total_seconds() * 1000), self.disable)
673
1154
self.expires = datetime.datetime.utcnow() + timeout
674
1155
675
1156
def need_approval(self):
676
1157
self.last_approval_request = datetime.datetime.utcnow()
677
678
def start_checker(self):
1158
1159
def start_checker(self, start_was_randomized=False):
679
1160
"""Start a new checker subprocess if one is not running.
680
1161
681
1162
If a checker already exists, leave it running and do
682
1163
nothing."""
683
1164
# The reason for not killing a running checker is that if we
688
1169
# checkers alone, the checker would have to take more time
689
1170
# than 'timeout' for the client to be disabled, which is as it
690
1171
# should be.
691
692
# If a checker exists, make sure it is not a zombie
693
try:
694
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
695
except AttributeError:
696
pass
697
except OSError as error:
698
if error.errno != errno.ECHILD:
699
raise
700
else:
701
if pid:
702
logger.warning("Checker was a zombie")
703
gobject.source_remove(self.checker_callback_tag)
704
self.checker_callback(pid, status,
705
self.current_checker_command)
1172
1173
if self.checker is not None and not self.checker.is_alive():
1174
log.warning("Checker was not alive; joining")
1175
self.checker.join()
1176
self.checker = None
706
1177
# Start a new checker if needed
707
1178
if self.checker is None:
708
1179
# Escape attributes for the shell
709
escaped_attrs = dict(
710
(attr, re.escape(unicode(getattr(self, attr))))
711
for attr in
712
self.runtime_expansions)
1180
escaped_attrs = {
1181
attr: shlex.quote(str(getattr(self, attr)))
1182
for attr in self.runtime_expansions}
713
1183
try:
714
1184
command = self.checker_command % escaped_attrs
715
1185
except TypeError as error:
716
logger.error('Could not format string "%s"',
717
self.checker_command, exc_info=error)
718
return True # Try again later
1186
log.error('Could not format string "%s"',
1187
self.checker_command, exc_info=error)
1188
return True # Try again later
719
1189
self.current_checker_command = command
720
try:
721
logger.info("Starting checker %r for %s",
722
command, self.name)
723
# We don't need to redirect stdout and stderr, since
724
# in normal mode, that is already done by daemon(),
725
# and in debug mode we don't want to. (Stdin is
726
# always replaced by /dev/null.)
727
# The exception is when not debugging but nevertheless
728
# running in the foreground; use the previously
729
# created wnull.
730
popen_args = {}
731
if (not self.server_settings["debug"]
732
and self.server_settings["foreground"]):
733
popen_args.update({"stdout": wnull,
734
"stderr": wnull })
735
self.checker = subprocess.Popen(command,
736
close_fds=True,
737
shell=True, cwd="/",
738
**popen_args)
739
except OSError as error:
740
logger.error("Failed to start subprocess",
741
exc_info=error)
742
return True
743
self.checker_callback_tag = (gobject.child_watch_add
744
(self.checker.pid,
745
self.checker_callback,
746
data=command))
747
# The checker may have completed before the gobject
748
# watch was added. Check for this.
749
try:
750
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
751
except OSError as error:
752
if error.errno == errno.ECHILD:
753
# This should never happen
754
logger.error("Child process vanished",
755
exc_info=error)
756
return True
757
raise
758
if pid:
759
gobject.source_remove(self.checker_callback_tag)
760
self.checker_callback(pid, status, command)
761
# Re-run this periodically if run by gobject.timeout_add
1190
log.info("Starting checker %r for %s", command, self.name)
1191
# We don't need to redirect stdout and stderr, since
1192
# in normal mode, that is already done by daemon(),
1193
# and in debug mode we don't want to. (Stdin is
1194
# always replaced by /dev/null.)
1195
# The exception is when not debugging but nevertheless
1196
# running in the foreground; use the previously
1197
# created wnull.
1198
popen_args = {"close_fds": True,
1199
"shell": True,
1200
"cwd": "/"}
1201
if (not self.server_settings["debug"]
1202
and self.server_settings["foreground"]):
1203
popen_args.update({"stdout": wnull,
1204
"stderr": wnull})
1205
pipe = multiprocessing.Pipe(duplex=False)
1206
self.checker = multiprocessing.Process(
1207
target=call_pipe,
1208
args=(pipe[1], subprocess.call, command),
1209
kwargs=popen_args)
1210
self.checker.start()
1211
self.checker_callback_tag = GLib.io_add_watch(
1212
GLib.IOChannel.unix_new(pipe[0].fileno()),
1213
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1214
self.checker_callback, pipe[0], command)
1215
if start_was_randomized:
1216
# We were started after a random delay; Schedule a new
1217
# checker to be started an 'interval' from now, and every
1218
# interval from then on.
1219
now = datetime.datetime.utcnow()
1220
self.checker_initiator_tag = GLib.timeout_add(
1221
int(self.interval.total_seconds() * 1000),
1222
self.start_checker)
1223
self.expires = max(self.expires, now + self.interval)
1224
# Don't start a new checker again after same random delay
1225
return False
1226
# Re-run this periodically if run by GLib.timeout_add
762
1227
return True
763
1228
764
1229
def stop_checker(self):
765
1230
"""Force the checker process, if any, to stop."""
766
1231
if self.checker_callback_tag:
767
gobject.source_remove(self.checker_callback_tag)
1232
GLib.source_remove(self.checker_callback_tag)
768
1233
self.checker_callback_tag = None
769
1234
if getattr(self, "checker", None) is None:
770
1235
return
771
logger.debug("Stopping checker for %(name)s", vars(self))
772
try:
773
self.checker.terminate()
774
#time.sleep(0.5)
775
#if self.checker.poll() is None:
776
# self.checker.kill()
777
except OSError as error:
778
if error.errno != errno.ESRCH: # No such process
779
raise
1236
log.debug("Stopping checker for %(name)s", vars(self))
1237
self.checker.terminate()
780
1238
self.checker = None
781
1239
782
1240
783
def dbus_service_property(dbus_interface, signature="v",
784
access="readwrite", byte_arrays=False):
1241
def dbus_service_property(dbus_interface,
1242
signature="v",
1243
access="readwrite",
1244
byte_arrays=False):
785
1245
"""Decorators for marking methods of a DBusObjectWithProperties to
786
1246
become properties on the D-Bus.
787
1247
788
1248
The decorated method will be called with no arguments by "Get"
789
1249
and with one argument by "Set".
790
1250
791
1251
The parameters, where they are supported, are the same as
792
1252
dbus.service.method, except there is only "signature", since the
793
1253
type from Get() and the type sent to Set() is the same.
796
1256
# "Set" method, so we fail early here:
797
1257
if byte_arrays and signature != "ay":
798
1258
raise ValueError("Byte arrays not supported for non-'ay'"
799
" signature {0!r}".format(signature))
1259
" signature {!r}".format(signature))
1260
800
1261
def decorator(func):
801
1262
func._dbus_is_property = True
802
1263
func._dbus_interface = dbus_interface
805
1266
func._dbus_name = func.__name__
806
1267
if func._dbus_name.endswith("_dbus_property"):
807
1268
func._dbus_name = func._dbus_name[:-14]
808
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
1269
func._dbus_get_args_options = {"byte_arrays": byte_arrays}
809
1270
return func
1271
810
1272
return decorator
811
1273
812
1274
813
1275
def dbus_interface_annotations(dbus_interface):
814
1276
"""Decorator for marking functions returning interface annotations
815
1277
816
1278
Usage:
817
1279
818
1280
@dbus_interface_annotations("org.example.Interface")
819
1281
def _foo(self): # Function name does not matter
820
1282
return {"org.freedesktop.DBus.Deprecated": "true",
821
1283
"org.freedesktop.DBus.Property.EmitsChangedSignal":
822
1284
"false"}
823
1285
"""
1286
824
1287
def decorator(func):
825
1288
func._dbus_is_interface = True
826
1289
func._dbus_interface = dbus_interface
827
1290
func._dbus_name = dbus_interface
828
1291
return func
1292
829
1293
return decorator
830
1294
831
1295
832
1296
def dbus_annotations(annotations):
833
1297
"""Decorator to annotate D-Bus methods, signals or properties
834
1298
Usage:
835
1299
1300
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1301
"org.freedesktop.DBus.Property."
1302
"EmitsChangedSignal": "false"})
836
1303
@dbus_service_property("org.example.Interface", signature="b",
837
1304
access="r")
838
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
839
"org.freedesktop.DBus.Property."
840
"EmitsChangedSignal": "false"})
841
1305
def Property_dbus_property(self):
842
1306
return dbus.Boolean(False)
1307
1308
See also the DBusObjectWithAnnotations class.
843
1309
"""
1310
844
1311
def decorator(func):
845
1312
func._dbus_annotations = annotations
846
1313
return func
1314
847
1315
return decorator
848
1316
849
1317
850
1318
class DBusPropertyException(dbus.exceptions.DBusException):
851
1319
"""A base class for D-Bus property-related exceptions
852
1320
"""
853
def __unicode__(self):
854
return unicode(str(self))
1321
pass
855
1322
856
1323
857
1324
class DBusPropertyAccessException(DBusPropertyException):
866
1333
pass
867
1334
868
1335
869
class DBusObjectWithProperties(dbus.service.Object):
870
"""A D-Bus object with properties.
871
872
Classes inheriting from this can use the dbus_service_property
873
decorator to expose methods as D-Bus properties. It exposes the
874
standard Get(), Set(), and GetAll() methods on the D-Bus.
1336
class DBusObjectWithAnnotations(dbus.service.Object):
1337
"""A D-Bus object with annotations.
1338
1339
Classes inheriting from this can use the dbus_annotations
1340
decorator to add annotations to methods or signals.
875
1341
"""
876
1342
877
1343
@staticmethod
878
1344
def _is_dbus_thing(thing):
879
1345
"""Returns a function testing if an attribute is a D-Bus thing
880
1346
881
1347
If called like _is_dbus_thing("method") it returns a function
882
1348
suitable for use as predicate to inspect.getmembers().
883
1349
"""
884
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1350
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
885
1351
False)
886
1352
887
1353
def _get_all_dbus_things(self, thing):
888
1354
"""Returns a generator of (name, attribute) pairs
889
1355
"""
890
return ((getattr(athing.__get__(self), "_dbus_name",
891
name),
1356
return ((getattr(athing.__get__(self), "_dbus_name", name),
892
1357
athing.__get__(self))
893
1358
for cls in self.__class__.__mro__
894
1359
for name, athing in
895
inspect.getmembers(cls,
896
self._is_dbus_thing(thing)))
897
1360
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1361
1362
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1363
out_signature="s",
1364
path_keyword="object_path",
1365
connection_keyword="connection")
1366
def Introspect(self, object_path, connection):
1367
"""Overloading of standard D-Bus method.
1368
1369
Inserts annotation tags on methods and signals.
1370
"""
1371
xmlstring = dbus.service.Object.Introspect(self, object_path,
1372
connection)
1373
try:
1374
document = xml.dom.minidom.parseString(xmlstring)
1375
1376
for if_tag in document.getElementsByTagName("interface"):
1377
# Add annotation tags
1378
for typ in ("method", "signal"):
1379
for tag in if_tag.getElementsByTagName(typ):
1380
annots = dict()
1381
for name, prop in (self.
1382
_get_all_dbus_things(typ)):
1383
if (name == tag.getAttribute("name")
1384
and prop._dbus_interface
1385
== if_tag.getAttribute("name")):
1386
annots.update(getattr(
1387
prop, "_dbus_annotations", {}))
1388
for name, value in annots.items():
1389
ann_tag = document.createElement(
1390
"annotation")
1391
ann_tag.setAttribute("name", name)
1392
ann_tag.setAttribute("value", value)
1393
tag.appendChild(ann_tag)
1394
# Add interface annotation tags
1395
for annotation, value in dict(
1396
itertools.chain.from_iterable(
1397
annotations().items()
1398
for name, annotations
1399
in self._get_all_dbus_things("interface")
1400
if name == if_tag.getAttribute("name")
1401
)).items():
1402
ann_tag = document.createElement("annotation")
1403
ann_tag.setAttribute("name", annotation)
1404
ann_tag.setAttribute("value", value)
1405
if_tag.appendChild(ann_tag)
1406
# Fix argument name for the Introspect method itself
1407
if (if_tag.getAttribute("name")
1408
== dbus.INTROSPECTABLE_IFACE):
1409
for cn in if_tag.getElementsByTagName("method"):
1410
if cn.getAttribute("name") == "Introspect":
1411
for arg in cn.getElementsByTagName("arg"):
1412
if (arg.getAttribute("direction")
1413
== "out"):
1414
arg.setAttribute("name",
1415
"xml_data")
1416
xmlstring = document.toxml("utf-8")
1417
document.unlink()
1418
except (AttributeError, xml.dom.DOMException,
1419
xml.parsers.expat.ExpatError) as error:
1420
log.error("Failed to override Introspection method",
1421
exc_info=error)
1422
return xmlstring
1423
1424
1425
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1426
"""A D-Bus object with properties.
1427
1428
Classes inheriting from this can use the dbus_service_property
1429
decorator to expose methods as D-Bus properties. It exposes the
1430
standard Get(), Set(), and GetAll() methods on the D-Bus.
1431
"""
1432
898
1433
def _get_dbus_property(self, interface_name, property_name):
899
1434
"""Returns a bound method if one exists which is a D-Bus
900
1435
property with the specified name and interface.
901
1436
"""
902
for cls in self.__class__.__mro__:
903
for name, value in (inspect.getmembers
904
(cls,
905
self._is_dbus_thing("property"))):
1437
for cls in self.__class__.__mro__:
1438
for name, value in inspect.getmembers(
1439
cls, self._is_dbus_thing("property")):
906
1440
if (value._dbus_name == property_name
907
1441
and value._dbus_interface == interface_name):
908
1442
return value.__get__(self)
909
1443
910
1444
# No such property
911
raise DBusPropertyNotFound(self.dbus_object_path + ":"
912
+ interface_name + "."
913
+ property_name)
914
915
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1445
raise DBusPropertyNotFound("{}:{}.{}".format(
1446
self.dbus_object_path, interface_name, property_name))
1447
1448
@classmethod
1449
def _get_all_interface_names(cls):
1450
"""Get a sequence of all interfaces supported by an object"""
1451
return (name for name in set(getattr(getattr(x, attr),
1452
"_dbus_interface", None)
1453
for x in (inspect.getmro(cls))
1454
for attr in dir(x))
1455
if name is not None)
1456
1457
@dbus.service.method(dbus.PROPERTIES_IFACE,
1458
in_signature="ss",
916
1459
out_signature="v")
917
1460
def Get(self, interface_name, property_name):
918
1461
"""Standard D-Bus property Get() method, see D-Bus standard.
924
1467
if not hasattr(value, "variant_level"):
925
1468
return value
926
1469
return type(value)(value, variant_level=value.variant_level+1)
927
1470
928
1471
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
929
1472
def Set(self, interface_name, property_name, value):
930
1473
"""Standard D-Bus property Set() method, see D-Bus standard.
937
1480
# signatures other than "ay".
938
1481
if prop._dbus_signature != "ay":
939
1482
raise ValueError("Byte arrays not supported for non-"
940
"'ay' signature {0!r}"
1483
"'ay' signature {!r}"
941
1484
.format(prop._dbus_signature))
942
value = dbus.ByteArray(b''.join(chr(byte)
943
for byte in value))
1485
value = dbus.ByteArray(bytes(value))
944
1486
prop(value)
945
946
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1487
1488
@dbus.service.method(dbus.PROPERTIES_IFACE,
1489
in_signature="s",
947
1490
out_signature="a{sv}")
948
1491
def GetAll(self, interface_name):
949
1492
"""Standard D-Bus property GetAll() method, see D-Bus
950
1493
standard.
951
1494
952
1495
Note: Will not include properties with access="write".
953
1496
"""
954
1497
properties = {}
964
1507
if not hasattr(value, "variant_level"):
965
1508
properties[name] = value
966
1509
continue
967
properties[name] = type(value)(value, variant_level=
968
value.variant_level+1)
1510
properties[name] = type(value)(
1511
value, variant_level=value.variant_level + 1)
969
1512
return dbus.Dictionary(properties, signature="sv")
970
1513
1514
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1515
def PropertiesChanged(self, interface_name, changed_properties,
1516
invalidated_properties):
1517
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1518
standard.
1519
"""
1520
pass
1521
971
1522
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
972
1523
out_signature="s",
973
path_keyword='object_path',
974
connection_keyword='connection')
1524
path_keyword="object_path",
1525
connection_keyword="connection")
975
1526
def Introspect(self, object_path, connection):
976
1527
"""Overloading of standard D-Bus method.
977
1528
978
1529
Inserts property tags and interface annotation tags.
979
1530
"""
980
xmlstring = dbus.service.Object.Introspect(self, object_path,
981
connection)
1531
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1532
object_path,
1533
connection)
982
1534
try:
983
1535
document = xml.dom.minidom.parseString(xmlstring)
1536
984
1537
def make_tag(document, name, prop):
985
1538
e = document.createElement("property")
986
1539
e.setAttribute("name", name)
987
1540
e.setAttribute("type", prop._dbus_signature)
988
1541
e.setAttribute("access", prop._dbus_access)
989
1542
return e
1543
990
1544
for if_tag in document.getElementsByTagName("interface"):
991
1545
# Add property tags
992
1546
for tag in (make_tag(document, name, prop)
995
1549
if prop._dbus_interface
996
1550
== if_tag.getAttribute("name")):
997
1551
if_tag.appendChild(tag)
998
# Add annotation tags
999
for typ in ("method", "signal", "property"):
1000
for tag in if_tag.getElementsByTagName(typ):
1001
annots = dict()
1002
for name, prop in (self.
1003
_get_all_dbus_things(typ)):
1004
if (name == tag.getAttribute("name")
1005
and prop._dbus_interface
1006
== if_tag.getAttribute("name")):
1007
annots.update(getattr
1008
(prop,
1009
"_dbus_annotations",
1010
{}))
1011
for name, value in annots.iteritems():
1012
ann_tag = document.createElement(
1013
"annotation")
1014
ann_tag.setAttribute("name", name)
1015
ann_tag.setAttribute("value", value)
1016
tag.appendChild(ann_tag)
1017
# Add interface annotation tags
1018
for annotation, value in dict(
1019
itertools.chain.from_iterable(
1020
annotations().iteritems()
1021
for name, annotations in
1022
self._get_all_dbus_things("interface")
1023
if name == if_tag.getAttribute("name")
1024
)).iteritems():
1025
ann_tag = document.createElement("annotation")
1026
ann_tag.setAttribute("name", annotation)
1027
ann_tag.setAttribute("value", value)
1028
if_tag.appendChild(ann_tag)
1552
# Add annotation tags for properties
1553
for tag in if_tag.getElementsByTagName("property"):
1554
annots = dict()
1555
for name, prop in self._get_all_dbus_things(
1556
"property"):
1557
if (name == tag.getAttribute("name")
1558
and prop._dbus_interface
1559
== if_tag.getAttribute("name")):
1560
annots.update(getattr(
1561
prop, "_dbus_annotations", {}))
1562
for name, value in annots.items():
1563
ann_tag = document.createElement(
1564
"annotation")
1565
ann_tag.setAttribute("name", name)
1566
ann_tag.setAttribute("value", value)
1567
tag.appendChild(ann_tag)
1029
1568
# Add the names to the return values for the
1030
1569
# "org.freedesktop.DBus.Properties" methods
1031
1570
if (if_tag.getAttribute("name")
1045
1584
document.unlink()
1046
1585
except (AttributeError, xml.dom.DOMException,
1047
1586
xml.parsers.expat.ExpatError) as error:
1048
logger.error("Failed to override Introspection method",
1049
exc_info=error)
1587
log.error("Failed to override Introspection method",
1588
exc_info=error)
1589
return xmlstring
1590
1591
1592
try:
1593
dbus.OBJECT_MANAGER_IFACE
1594
except AttributeError:
1595
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1596
1597
1598
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1599
"""A D-Bus object with an ObjectManager.
1600
1601
Classes inheriting from this exposes the standard
1602
GetManagedObjects call and the InterfacesAdded and
1603
InterfacesRemoved signals on the standard
1604
"org.freedesktop.DBus.ObjectManager" interface.
1605
1606
Note: No signals are sent automatically; they must be sent
1607
manually.
1608
"""
1609
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1610
out_signature="a{oa{sa{sv}}}")
1611
def GetManagedObjects(self):
1612
"""This function must be overridden"""
1613
raise NotImplementedError()
1614
1615
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1616
signature="oa{sa{sv}}")
1617
def InterfacesAdded(self, object_path, interfaces_and_properties):
1618
pass
1619
1620
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1621
def InterfacesRemoved(self, object_path, interfaces):
1622
pass
1623
1624
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1625
out_signature="s",
1626
path_keyword="object_path",
1627
connection_keyword="connection")
1628
def Introspect(self, object_path, connection):
1629
"""Overloading of standard D-Bus method.
1630
1631
Override return argument name of GetManagedObjects to be
1632
"objpath_interfaces_and_properties"
1633
"""
1634
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1635
object_path,
1636
connection)
1637
try:
1638
document = xml.dom.minidom.parseString(xmlstring)
1639
1640
for if_tag in document.getElementsByTagName("interface"):
1641
# Fix argument name for the GetManagedObjects method
1642
if (if_tag.getAttribute("name")
1643
== dbus.OBJECT_MANAGER_IFACE):
1644
for cn in if_tag.getElementsByTagName("method"):
1645
if (cn.getAttribute("name")
1646
== "GetManagedObjects"):
1647
for arg in cn.getElementsByTagName("arg"):
1648
if (arg.getAttribute("direction")
1649
== "out"):
1650
arg.setAttribute(
1651
"name",
1652
"objpath_interfaces"
1653
"_and_properties")
1654
xmlstring = document.toxml("utf-8")
1655
document.unlink()
1656
except (AttributeError, xml.dom.DOMException,
1657
xml.parsers.expat.ExpatError) as error:
1658
log.error("Failed to override Introspection method",
1659
exc_info=error)
1050
1660
return xmlstring
1051
1661
1052
1662
1053
1663
def datetime_to_dbus(dt, variant_level=0):
1054
1664
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1055
1665
if dt is None:
1056
return dbus.String("", variant_level = variant_level)
1057
return dbus.String(dt.isoformat(),
1058
variant_level=variant_level)
1666
return dbus.String("", variant_level=variant_level)
1667
return dbus.String(dt.isoformat(), variant_level=variant_level)
1059
1668
1060
1669
1061
1670
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1063
1672
dbus.service.Object, it will add alternate D-Bus attributes with
1064
1673
interface names according to the "alt_interface_names" mapping.
1065
1674
Usage:
1066
1675
1067
1676
@alternate_dbus_interfaces({"org.example.Interface":
1068
1677
"net.example.AlternateInterface"})
1069
1678
class SampleDBusObject(dbus.service.Object):
1070
1679
@dbus.service.method("org.example.Interface")
1071
1680
def SampleDBusMethod():
1072
1681
pass
1073
1682
1074
1683
The above "SampleDBusMethod" on "SampleDBusObject" will be
1075
1684
reachable via two interfaces: "org.example.Interface" and
1076
1685
"net.example.AlternateInterface", the latter of which will have
1077
1686
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1078
1687
"true", unless "deprecate" is passed with a False value.
1079
1688
1080
1689
This works for methods and signals, and also for D-Bus properties
1081
1690
(from DBusObjectWithProperties) and interfaces (from the
1082
1691
dbus_interface_annotations decorator).
1083
1692
"""
1693
1084
1694
def wrapper(cls):
1085
1695
for orig_interface_name, alt_interface_name in (
1086
alt_interface_names.iteritems()):
1696
alt_interface_names.items()):
1087
1697
attr = {}
1088
1698
interface_names = set()
1089
1699
# Go though all attributes of the class
1091
1701
# Ignore non-D-Bus attributes, and D-Bus attributes
1092
1702
# with the wrong interface name
1093
1703
if (not hasattr(attribute, "_dbus_interface")
1094
or not attribute._dbus_interface
1095
.startswith(orig_interface_name)):
1704
or not attribute._dbus_interface.startswith(
1705
orig_interface_name)):
1096
1706
continue
1097
1707
# Create an alternate D-Bus interface name based on
1098
1708
# the current name
1099
alt_interface = (attribute._dbus_interface
1100
.replace(orig_interface_name,
1101
alt_interface_name))
1709
alt_interface = attribute._dbus_interface.replace(
1710
orig_interface_name, alt_interface_name)
1102
1711
interface_names.add(alt_interface)
1103
1712
# Is this a D-Bus signal?
1104
1713
if getattr(attribute, "_dbus_is_signal", False):
1105
1714
# Extract the original non-method undecorated
1106
1715
# function by black magic
1107
nonmethod_func = (dict(
1716
if sys.version_info.major == 2:
1717
nonmethod_func = (dict(
1108
1718
zip(attribute.func_code.co_freevars,
1109
attribute.__closure__))["func"]
1110
.cell_contents)
1719
attribute.__closure__))
1720
["func"].cell_contents)
1721
else:
1722
nonmethod_func = (dict(
1723
zip(attribute.__code__.co_freevars,
1724
attribute.__closure__))
1725
["func"].cell_contents)
1111
1726
# Create a new, but exactly alike, function
1112
1727
# object, and decorate it to be a new D-Bus signal
1113
1728
# with the alternate D-Bus interface name
1114
new_function = (dbus.service.signal
1115
(alt_interface,
1116
attribute._dbus_signature)
1117
(types.FunctionType(
1118
nonmethod_func.func_code,
1119
nonmethod_func.func_globals,
1120
nonmethod_func.func_name,
1121
nonmethod_func.func_defaults,
1122
nonmethod_func.func_closure)))
1729
new_function = copy_function(nonmethod_func)
1730
new_function = (dbus.service.signal(
1731
alt_interface,
1732
attribute._dbus_signature)(new_function))
1123
1733
# Copy annotations, if any
1124
1734
try:
1125
new_function._dbus_annotations = (
1126
dict(attribute._dbus_annotations))
1735
new_function._dbus_annotations = dict(
1736
attribute._dbus_annotations)
1127
1737
except AttributeError:
1128
1738
pass
1739
1129
1740
# Define a creator of a function to call both the
1130
1741
# original and alternate functions, so both the
1131
1742
# original and alternate signals gets sent when
1134
1745
"""This function is a scope container to pass
1135
1746
func1 and func2 to the "call_both" function
1136
1747
outside of its arguments"""
1748
1749
@functools.wraps(func2)
1137
1750
def call_both(*args, **kwargs):
1138
1751
"""This function will emit two D-Bus
1139
1752
signals by calling func1 and func2"""
1140
1753
func1(*args, **kwargs)
1141
1754
func2(*args, **kwargs)
1755
# Make wrapper function look like a D-Bus
1756
# signal
1757
for name, attr in inspect.getmembers(func2):
1758
if name.startswith("_dbus_"):
1759
setattr(call_both, name, attr)
1760
1142
1761
return call_both
1143
1762
# Create the "call_both" function and add it to
1144
1763
# the class
1149
1768
# object. Decorate it to be a new D-Bus method
1150
1769
# with the alternate D-Bus interface name. Add it
1151
1770
# to the class.
1152
attr[attrname] = (dbus.service.method
1153
(alt_interface,
1154
attribute._dbus_in_signature,
1155
attribute._dbus_out_signature)
1156
(types.FunctionType
1157
(attribute.func_code,
1158
attribute.func_globals,
1159
attribute.func_name,
1160
attribute.func_defaults,
1161
attribute.func_closure)))
1771
attr[attrname] = (
1772
dbus.service.method(
1773
alt_interface,
1774
attribute._dbus_in_signature,
1775
attribute._dbus_out_signature)
1776
(copy_function(attribute)))
1162
1777
# Copy annotations, if any
1163
1778
try:
1164
attr[attrname]._dbus_annotations = (
1165
dict(attribute._dbus_annotations))
1779
attr[attrname]._dbus_annotations = dict(
1780
attribute._dbus_annotations)
1166
1781
except AttributeError:
1167
1782
pass
1168
1783
# Is this a D-Bus property?
1171
1786
# object, and decorate it to be a new D-Bus
1172
1787
# property with the alternate D-Bus interface
1173
1788
# name. Add it to the class.
1174
attr[attrname] = (dbus_service_property
1175
(alt_interface,
1176
attribute._dbus_signature,
1177
attribute._dbus_access,
1178
attribute
1179
._dbus_get_args_options
1180
["byte_arrays"])
1181
(types.FunctionType
1182
(attribute.func_code,
1183
attribute.func_globals,
1184
attribute.func_name,
1185
attribute.func_defaults,
1186
attribute.func_closure)))
1789
attr[attrname] = (dbus_service_property(
1790
alt_interface, attribute._dbus_signature,
1791
attribute._dbus_access,
1792
attribute._dbus_get_args_options
1793
["byte_arrays"])
1794
(copy_function(attribute)))
1187
1795
# Copy annotations, if any
1188
1796
try:
1189
attr[attrname]._dbus_annotations = (
1190
dict(attribute._dbus_annotations))
1797
attr[attrname]._dbus_annotations = dict(
1798
attribute._dbus_annotations)
1191
1799
except AttributeError:
1192
1800
pass
1193
1801
# Is this a D-Bus interface?
1196
1804
# object. Decorate it to be a new D-Bus interface
1197
1805
# with the alternate D-Bus interface name. Add it
1198
1806
# to the class.
1199
attr[attrname] = (dbus_interface_annotations
1200
(alt_interface)
1201
(types.FunctionType
1202
(attribute.func_code,
1203
attribute.func_globals,
1204
attribute.func_name,
1205
attribute.func_defaults,
1206
attribute.func_closure)))
1807
attr[attrname] = (
1808
dbus_interface_annotations(alt_interface)
1809
(copy_function(attribute)))
1207
1810
if deprecate:
1208
1811
# Deprecate all alternate interfaces
1209
iname="_AlternateDBusNames_interface_annotation{0}"
1812
iname = "_AlternateDBusNames_interface_annotation{}"
1210
1813
for interface_name in interface_names:
1814
1211
1815
@dbus_interface_annotations(interface_name)
1212
1816
def func(self):
1213
return { "org.freedesktop.DBus.Deprecated":
1214
"true" }
1817
return {"org.freedesktop.DBus.Deprecated":
1818
"true"}
1215
1819
# Find an unused name
1216
1820
for aname in (iname.format(i)
1217
1821
for i in itertools.count()):
1221
1825
if interface_names:
1222
1826
# Replace the class with a new subclass of it with
1223
1827
# methods, signals, etc. as created above.
1224
cls = type(b"{0}Alternate".format(cls.__name__),
1225
(cls,), attr)
1828
if sys.version_info.major == 2:
1829
cls = type(b"{}Alternate".format(cls.__name__),
1830
(cls, ), attr)
1831
else:
1832
cls = type("{}Alternate".format(cls.__name__),
1833
(cls, ), attr)
1226
1834
return cls
1835
1227
1836
return wrapper
1228
1837
1229
1838
1230
1839
@alternate_dbus_interfaces({"se.recompile.Mandos":
1231
"se.bsnet.fukt.Mandos"})
1840
"se.bsnet.fukt.Mandos"})
1232
1841
class ClientDBus(Client, DBusObjectWithProperties):
1233
1842
"""A Client class using D-Bus
1234
1843
1235
1844
Attributes:
1236
1845
dbus_object_path: dbus.ObjectPath
1237
1846
bus: dbus.SystemBus()
1238
1847
"""
1239
1848
1240
1849
runtime_expansions = (Client.runtime_expansions
1241
+ ("dbus_object_path",))
1242
1850
+ ("dbus_object_path", ))
1851
1852
_interface = "se.recompile.Mandos.Client"
1853
1243
1854
# dbus.service.Object doesn't use super(), so we can't either.
1244
1245
def __init__(self, bus = None, *args, **kwargs):
1855
1856
def __init__(self, bus=None, *args, **kwargs):
1246
1857
self.bus = bus
1247
1858
Client.__init__(self, *args, **kwargs)
1248
1859
# Only now, when this client is initialized, can it show up on
1249
1860
# the D-Bus
1250
client_object_name = unicode(self.name).translate(
1861
client_object_name = str(self.name).translate(
1251
1862
{ord("."): ord("_"),
1252
1863
ord("-"): ord("_")})
1253
self.dbus_object_path = (dbus.ObjectPath
1254
("/clients/" + client_object_name))
1864
self.dbus_object_path = dbus.ObjectPath(
1865
"/clients/" + client_object_name)
1255
1866
DBusObjectWithProperties.__init__(self, self.bus,
1256
1867
self.dbus_object_path)
1257
1258
def notifychangeproperty(transform_func,
1259
dbus_name, type_func=lambda x: x,
1260
variant_level=1):
1868
1869
def notifychangeproperty(transform_func, dbus_name,
1870
type_func=lambda x: x,
1871
variant_level=1,
1872
invalidate_only=False,
1873
_interface=_interface):
1261
1874
""" Modify a variable so that it's a property which announces
1262
1875
its changes to DBus.
1263
1876
1264
1877
transform_fun: Function that takes a value and a variant_level
1265
1878
and transforms it to a D-Bus type.
1266
1879
dbus_name: D-Bus name of the variable
1268
1881
to the D-Bus. Default: no transform
1269
1882
variant_level: D-Bus variant level. Default: 1
1270
1883
"""
1271
attrname = "_{0}".format(dbus_name)
1884
attrname = "_{}".format(dbus_name)
1885
1272
1886
def setter(self, value):
1273
1887
if hasattr(self, "dbus_object_path"):
1274
1888
if (not hasattr(self, attrname) or
1275
1889
type_func(getattr(self, attrname, None))
1276
1890
!= type_func(value)):
1277
dbus_value = transform_func(type_func(value),
1278
variant_level
1279
=variant_level)
1280
self.PropertyChanged(dbus.String(dbus_name),
1281
dbus_value)
1891
if invalidate_only:
1892
self.PropertiesChanged(
1893
_interface, dbus.Dictionary(),
1894
dbus.Array((dbus_name, )))
1895
else:
1896
dbus_value = transform_func(
1897
type_func(value),
1898
variant_level=variant_level)
1899
self.PropertyChanged(dbus.String(dbus_name),
1900
dbus_value)
1901
self.PropertiesChanged(
1902
_interface,
1903
dbus.Dictionary({dbus.String(dbus_name):
1904
dbus_value}),
1905
dbus.Array())
1282
1906
setattr(self, attrname, value)
1283
1907
1284
1908
return property(lambda self: getattr(self, attrname), setter)
1285
1909
1286
1910
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1287
1911
approvals_pending = notifychangeproperty(dbus.Boolean,
1288
1912
"ApprovalPending",
1289
type_func = bool)
1913
type_func=bool)
1290
1914
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1291
1915
last_enabled = notifychangeproperty(datetime_to_dbus,
1292
1916
"LastEnabled")
1293
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1294
type_func = lambda checker:
1295
checker is not None)
1917
checker = notifychangeproperty(
1918
dbus.Boolean, "CheckerRunning",
1919
type_func=lambda checker: checker is not None)
1296
1920
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1297
1921
"LastCheckedOK")
1298
1922
last_checker_status = notifychangeproperty(dbus.Int16,
1301
1925
datetime_to_dbus, "LastApprovalRequest")
1302
1926
approved_by_default = notifychangeproperty(dbus.Boolean,
1303
1927
"ApprovedByDefault")
1304
approval_delay = notifychangeproperty(dbus.UInt64,
1305
"ApprovalDelay",
1306
type_func =
1307
timedelta_to_milliseconds)
1928
approval_delay = notifychangeproperty(
1929
dbus.UInt64, "ApprovalDelay",
1930
type_func=lambda td: td.total_seconds() * 1000)
1308
1931
approval_duration = notifychangeproperty(
1309
1932
dbus.UInt64, "ApprovalDuration",
1310
type_func = timedelta_to_milliseconds)
1933
type_func=lambda td: td.total_seconds() * 1000)
1311
1934
host = notifychangeproperty(dbus.String, "Host")
1312
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1313
type_func =
1314
timedelta_to_milliseconds)
1935
timeout = notifychangeproperty(
1936
dbus.UInt64, "Timeout",
1937
type_func=lambda td: td.total_seconds() * 1000)
1315
1938
extended_timeout = notifychangeproperty(
1316
1939
dbus.UInt64, "ExtendedTimeout",
1317
type_func = timedelta_to_milliseconds)
1318
interval = notifychangeproperty(dbus.UInt64,
1319
"Interval",
1320
type_func =
1321
timedelta_to_milliseconds)
1940
type_func=lambda td: td.total_seconds() * 1000)
1941
interval = notifychangeproperty(
1942
dbus.UInt64, "Interval",
1943
type_func=lambda td: td.total_seconds() * 1000)
1322
1944
checker_command = notifychangeproperty(dbus.String, "Checker")
1323
1945
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1946
invalidate_only=True)
1947
1324
1948
del notifychangeproperty
1325
1949
1326
1950
def __del__(self, *args, **kwargs):
1327
1951
try:
1328
1952
self.remove_from_connection()
1331
1955
if hasattr(DBusObjectWithProperties, "__del__"):
1332
1956
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1333
1957
Client.__del__(self, *args, **kwargs)
1334
1335
def checker_callback(self, pid, condition, command,
1336
*args, **kwargs):
1337
self.checker_callback_tag = None
1338
self.checker = None
1339
if os.WIFEXITED(condition):
1340
exitstatus = os.WEXITSTATUS(condition)
1958
1959
def checker_callback(self, source, condition,
1960
connection, command, *args, **kwargs):
1961
ret = Client.checker_callback(self, source, condition,
1962
connection, command, *args,
1963
**kwargs)
1964
exitstatus = self.last_checker_status
1965
if exitstatus >= 0:
1341
1966
# Emit D-Bus signal
1342
1967
self.CheckerCompleted(dbus.Int16(exitstatus),
1343
dbus.Int64(condition),
1968
# This is specific to GNU libC
1969
dbus.Int64(exitstatus << 8),
1344
1970
dbus.String(command))
1345
1971
else:
1346
1972
# Emit D-Bus signal
1347
1973
self.CheckerCompleted(dbus.Int16(-1),
1348
dbus.Int64(condition),
1974
dbus.Int64(
1975
# This is specific to GNU libC
1976
(exitstatus << 8)
1977
| self.last_checker_signal),
1349
1978
dbus.String(command))
1350
1351
return Client.checker_callback(self, pid, condition, command,
1352
*args, **kwargs)
1353
1979
return ret
1980
1354
1981
def start_checker(self, *args, **kwargs):
1355
1982
old_checker_pid = getattr(self.checker, "pid", None)
1356
1983
r = Client.start_checker(self, *args, **kwargs)
1360
1987
# Emit D-Bus signal
1361
1988
self.CheckerStarted(self.current_checker_command)
1362
1989
return r
1363
1990
1364
1991
def _reset_approved(self):
1365
1992
self.approved = None
1366
1993
return False
1367
1994
1368
1995
def approve(self, value=True):
1369
1996
self.approved = value
1370
gobject.timeout_add(timedelta_to_milliseconds
1371
(self.approval_duration),
1372
self._reset_approved)
1997
GLib.timeout_add(int(self.approval_duration.total_seconds()
1998
* 1000), self._reset_approved)
1373
1999
self.send_changedstate()
1374
1375
## D-Bus methods, signals & properties
1376
_interface = "se.recompile.Mandos.Client"
1377
1378
## Interfaces
1379
1380
@dbus_interface_annotations(_interface)
1381
def _foo(self):
1382
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1383
"false"}
1384
1385
## Signals
1386
2000
2001
# D-Bus methods, signals & properties
2002
2003
# Interfaces
2004
2005
# Signals
2006
1387
2007
# CheckerCompleted - signal
1388
2008
@dbus.service.signal(_interface, signature="nxs")
1389
2009
def CheckerCompleted(self, exitcode, waitstatus, command):
1390
2010
"D-Bus signal"
1391
2011
pass
1392
2012
1393
2013
# CheckerStarted - signal
1394
2014
@dbus.service.signal(_interface, signature="s")
1395
2015
def CheckerStarted(self, command):
1396
2016
"D-Bus signal"
1397
2017
pass
1398
2018
1399
2019
# PropertyChanged - signal
2020
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1400
2021
@dbus.service.signal(_interface, signature="sv")
1401
2022
def PropertyChanged(self, property, value):
1402
2023
"D-Bus signal"
1403
2024
pass
1404
2025
1405
2026
# GotSecret - signal
1406
2027
@dbus.service.signal(_interface)
1407
2028
def GotSecret(self):
1410
2031
server to mandos-client
1411
2032
"""
1412
2033
pass
1413
2034
1414
2035
# Rejected - signal
1415
2036
@dbus.service.signal(_interface, signature="s")
1416
2037
def Rejected(self, reason):
1417
2038
"D-Bus signal"
1418
2039
pass
1419
2040
1420
2041
# NeedApproval - signal
1421
2042
@dbus.service.signal(_interface, signature="tb")
1422
2043
def NeedApproval(self, timeout, default):
1423
2044
"D-Bus signal"
1424
2045
return self.need_approval()
1425
1426
## Methods
1427
2046
2047
# Methods
2048
1428
2049
# Approve - method
1429
2050
@dbus.service.method(_interface, in_signature="b")
1430
2051
def Approve(self, value):
1431
2052
self.approve(value)
1432
2053
1433
2054
# CheckedOK - method
1434
2055
@dbus.service.method(_interface)
1435
2056
def CheckedOK(self):
1436
2057
self.checked_ok()
1437
2058
1438
2059
# Enable - method
2060
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1439
2061
@dbus.service.method(_interface)
1440
2062
def Enable(self):
1441
2063
"D-Bus method"
1442
2064
self.enable()
1443
2065
1444
2066
# StartChecker - method
2067
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1445
2068
@dbus.service.method(_interface)
1446
2069
def StartChecker(self):
1447
2070
"D-Bus method"
1448
2071
self.start_checker()
1449
2072
1450
2073
# Disable - method
2074
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1451
2075
@dbus.service.method(_interface)
1452
2076
def Disable(self):
1453
2077
"D-Bus method"
1454
2078
self.disable()
1455
2079
1456
2080
# StopChecker - method
2081
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1457
2082
@dbus.service.method(_interface)
1458
2083
def StopChecker(self):
1459
2084
self.stop_checker()
1460
1461
## Properties
1462
2085
2086
# Properties
2087
1463
2088
# ApprovalPending - property
1464
2089
@dbus_service_property(_interface, signature="b", access="read")
1465
2090
def ApprovalPending_dbus_property(self):
1466
2091
return dbus.Boolean(bool(self.approvals_pending))
1467
2092
1468
2093
# ApprovedByDefault - property
1469
@dbus_service_property(_interface, signature="b",
2094
@dbus_service_property(_interface,
2095
signature="b",
1470
2096
access="readwrite")
1471
2097
def ApprovedByDefault_dbus_property(self, value=None):
1472
2098
if value is None: # get
1473
2099
return dbus.Boolean(self.approved_by_default)
1474
2100
self.approved_by_default = bool(value)
1475
2101
1476
2102
# ApprovalDelay - property
1477
@dbus_service_property(_interface, signature="t",
2103
@dbus_service_property(_interface,
2104
signature="t",
1478
2105
access="readwrite")
1479
2106
def ApprovalDelay_dbus_property(self, value=None):
1480
2107
if value is None: # get
1481
return dbus.UInt64(self.approval_delay_milliseconds())
2108
return dbus.UInt64(self.approval_delay.total_seconds()
2109
* 1000)
1482
2110
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1483
2111
1484
2112
# ApprovalDuration - property
1485
@dbus_service_property(_interface, signature="t",
2113
@dbus_service_property(_interface,
2114
signature="t",
1486
2115
access="readwrite")
1487
2116
def ApprovalDuration_dbus_property(self, value=None):
1488
2117
if value is None: # get
1489
return dbus.UInt64(timedelta_to_milliseconds(
1490
self.approval_duration))
2118
return dbus.UInt64(self.approval_duration.total_seconds()
2119
* 1000)
1491
2120
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1492
2121
1493
2122
# Name - property
2123
@dbus_annotations(
2124
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1494
2125
@dbus_service_property(_interface, signature="s", access="read")
1495
2126
def Name_dbus_property(self):
1496
2127
return dbus.String(self.name)
1497
2128
2129
# KeyID - property
2130
@dbus_annotations(
2131
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2132
@dbus_service_property(_interface, signature="s", access="read")
2133
def KeyID_dbus_property(self):
2134
return dbus.String(self.key_id)
2135
1498
2136
# Fingerprint - property
2137
@dbus_annotations(
2138
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1499
2139
@dbus_service_property(_interface, signature="s", access="read")
1500
2140
def Fingerprint_dbus_property(self):
1501
2141
return dbus.String(self.fingerprint)
1502
2142
1503
2143
# Host - property
1504
@dbus_service_property(_interface, signature="s",
2144
@dbus_service_property(_interface,
2145
signature="s",
1505
2146
access="readwrite")
1506
2147
def Host_dbus_property(self, value=None):
1507
2148
if value is None: # get
1508
2149
return dbus.String(self.host)
1509
self.host = unicode(value)
1510
2150
self.host = str(value)
2151
1511
2152
# Created - property
2153
@dbus_annotations(
2154
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1512
2155
@dbus_service_property(_interface, signature="s", access="read")
1513
2156
def Created_dbus_property(self):
1514
2157
return datetime_to_dbus(self.created)
1515
2158
1516
2159
# LastEnabled - property
1517
2160
@dbus_service_property(_interface, signature="s", access="read")
1518
2161
def LastEnabled_dbus_property(self):
1519
2162
return datetime_to_dbus(self.last_enabled)
1520
2163
1521
2164
# Enabled - property
1522
@dbus_service_property(_interface, signature="b",
2165
@dbus_service_property(_interface,
2166
signature="b",
1523
2167
access="readwrite")
1524
2168
def Enabled_dbus_property(self, value=None):
1525
2169
if value is None: # get
1528
2172
self.enable()
1529
2173
else:
1530
2174
self.disable()
1531
2175
1532
2176
# LastCheckedOK - property
1533
@dbus_service_property(_interface, signature="s",
2177
@dbus_service_property(_interface,
2178
signature="s",
1534
2179
access="readwrite")
1535
2180
def LastCheckedOK_dbus_property(self, value=None):
1536
2181
if value is not None:
1537
2182
self.checked_ok()
1538
2183
return
1539
2184
return datetime_to_dbus(self.last_checked_ok)
1540
2185
1541
2186
# LastCheckerStatus - property
1542
@dbus_service_property(_interface, signature="n",
1543
access="read")
2187
@dbus_service_property(_interface, signature="n", access="read")
1544
2188
def LastCheckerStatus_dbus_property(self):
1545
2189
return dbus.Int16(self.last_checker_status)
1546
2190
1547
2191
# Expires - property
1548
2192
@dbus_service_property(_interface, signature="s", access="read")
1549
2193
def Expires_dbus_property(self):
1550
2194
return datetime_to_dbus(self.expires)
1551
2195
1552
2196
# LastApprovalRequest - property
1553
2197
@dbus_service_property(_interface, signature="s", access="read")
1554
2198
def LastApprovalRequest_dbus_property(self):
1555
2199
return datetime_to_dbus(self.last_approval_request)
1556
2200
1557
2201
# Timeout - property
1558
@dbus_service_property(_interface, signature="t",
2202
@dbus_service_property(_interface,
2203
signature="t",
1559
2204
access="readwrite")
1560
2205
def Timeout_dbus_property(self, value=None):
1561
2206
if value is None: # get
1562
return dbus.UInt64(self.timeout_milliseconds())
2207
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1563
2208
old_timeout = self.timeout
1564
2209
self.timeout = datetime.timedelta(0, 0, 0, value)
1565
2210
# Reschedule disabling
1573
2218
if (getattr(self, "disable_initiator_tag", None)
1574
2219
is None):
1575
2220
return
1576
gobject.source_remove(self.disable_initiator_tag)
1577
self.disable_initiator_tag = (
1578
gobject.timeout_add(
1579
timedelta_to_milliseconds(self.expires - now),
1580
self.disable))
1581
2221
GLib.source_remove(self.disable_initiator_tag)
2222
self.disable_initiator_tag = GLib.timeout_add(
2223
int((self.expires - now).total_seconds() * 1000),
2224
self.disable)
2225
1582
2226
# ExtendedTimeout - property
1583
@dbus_service_property(_interface, signature="t",
2227
@dbus_service_property(_interface,
2228
signature="t",
1584
2229
access="readwrite")
1585
2230
def ExtendedTimeout_dbus_property(self, value=None):
1586
2231
if value is None: # get
1587
return dbus.UInt64(self.extended_timeout_milliseconds())
2232
return dbus.UInt64(self.extended_timeout.total_seconds()
2233
* 1000)
1588
2234
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1589
2235
1590
2236
# Interval - property
1591
@dbus_service_property(_interface, signature="t",
2237
@dbus_service_property(_interface,
2238
signature="t",
1592
2239
access="readwrite")
1593
2240
def Interval_dbus_property(self, value=None):
1594
2241
if value is None: # get
1595
return dbus.UInt64(self.interval_milliseconds())
2242
return dbus.UInt64(self.interval.total_seconds() * 1000)
1596
2243
self.interval = datetime.timedelta(0, 0, 0, value)
1597
2244
if getattr(self, "checker_initiator_tag", None) is None:
1598
2245
return
1599
2246
if self.enabled:
1600
2247
# Reschedule checker run
1601
gobject.source_remove(self.checker_initiator_tag)
1602
self.checker_initiator_tag = (gobject.timeout_add
1603
(value, self.start_checker))
1604
self.start_checker() # Start one now, too
1605
2248
GLib.source_remove(self.checker_initiator_tag)
2249
self.checker_initiator_tag = GLib.timeout_add(
2250
value, self.start_checker)
2251
self.start_checker() # Start one now, too
2252
1606
2253
# Checker - property
1607
@dbus_service_property(_interface, signature="s",
2254
@dbus_service_property(_interface,
2255
signature="s",
1608
2256
access="readwrite")
1609
2257
def Checker_dbus_property(self, value=None):
1610
2258
if value is None: # get
1611
2259
return dbus.String(self.checker_command)
1612
self.checker_command = unicode(value)
1613
2260
self.checker_command = str(value)
2261
1614
2262
# CheckerRunning - property
1615
@dbus_service_property(_interface, signature="b",
2263
@dbus_service_property(_interface,
2264
signature="b",
1616
2265
access="readwrite")
1617
2266
def CheckerRunning_dbus_property(self, value=None):
1618
2267
if value is None: # get
1621
2270
self.start_checker()
1622
2271
else:
1623
2272
self.stop_checker()
1624
2273
1625
2274
# ObjectPath - property
2275
@dbus_annotations(
2276
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2277
"org.freedesktop.DBus.Deprecated": "true"})
1626
2278
@dbus_service_property(_interface, signature="o", access="read")
1627
2279
def ObjectPath_dbus_property(self):
1628
return self.dbus_object_path # is already a dbus.ObjectPath
1629
2280
return self.dbus_object_path # is already a dbus.ObjectPath
2281
1630
2282
# Secret = property
1631
@dbus_service_property(_interface, signature="ay",
1632
access="write", byte_arrays=True)
2283
@dbus_annotations(
2284
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2285
"invalidates"})
2286
@dbus_service_property(_interface,
2287
signature="ay",
2288
access="write",
2289
byte_arrays=True)
1633
2290
def Secret_dbus_property(self, value):
1634
self.secret = str(value)
1635
2291
self.secret = bytes(value)
2292
1636
2293
del _interface
1637
2294
1638
2295
1639
class ProxyClient(object):
1640
def __init__(self, child_pipe, fpr, address):
2296
class ProxyClient:
2297
def __init__(self, child_pipe, key_id, fpr, address):
1641
2298
self._pipe = child_pipe
1642
self._pipe.send(('init', fpr, address))
2299
self._pipe.send(("init", key_id, fpr, address))
1643
2300
if not self._pipe.recv():
1644
raise KeyError()
1645
2301
raise KeyError(key_id or fpr)
2302
1646
2303
def __getattribute__(self, name):
1647
if name == '_pipe':
2304
if name == "_pipe":
1648
2305
return super(ProxyClient, self).__getattribute__(name)
1649
self._pipe.send(('getattr', name))
2306
self._pipe.send(("getattr", name))
1650
2307
data = self._pipe.recv()
1651
if data[0] == 'data':
2308
if data[0] == "data":
1652
2309
return data[1]
1653
if data[0] == 'function':
2310
if data[0] == "function":
2311
1654
2312
def func(*args, **kwargs):
1655
self._pipe.send(('funcall', name, args, kwargs))
2313
self._pipe.send(("funcall", name, args, kwargs))
1656
2314
return self._pipe.recv()[1]
2315
1657
2316
return func
1658
2317
1659
2318
def __setattr__(self, name, value):
1660
if name == '_pipe':
2319
if name == "_pipe":
1661
2320
return super(ProxyClient, self).__setattr__(name, value)
1662
self._pipe.send(('setattr', name, value))
2321
self._pipe.send(("setattr", name, value))
1663
2322
1664
2323
1665
2324
class ClientHandler(socketserver.BaseRequestHandler, object):
1666
2325
"""A class to handle client connections.
1667
2326
1668
2327
Instantiated once for each connection to handle it.
1669
2328
Note: This will run in its own forked process."""
1670
2329
1671
2330
def handle(self):
1672
2331
with contextlib.closing(self.server.child_pipe) as child_pipe:
1673
logger.info("TCP connection from: %s",
1674
unicode(self.client_address))
1675
logger.debug("Pipe FD: %d",
1676
self.server.child_pipe.fileno())
1677
1678
session = (gnutls.connection
1679
.ClientSession(self.request,
1680
gnutls.connection
1681
.X509Credentials()))
1682
1683
# Note: gnutls.connection.X509Credentials is really a
1684
# generic GnuTLS certificate credentials object so long as
1685
# no X.509 keys are added to it. Therefore, we can use it
1686
# here despite using OpenPGP certificates.
1687
1688
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1689
# "+AES-256-CBC", "+SHA1",
1690
# "+COMP-NULL", "+CTYPE-OPENPGP",
1691
# "+DHE-DSS"))
2332
log.info("TCP connection from: %s",
2333
str(self.client_address))
2334
log.debug("Pipe FD: %d", self.server.child_pipe.fileno())
2335
2336
session = gnutls.ClientSession(self.request)
2337
2338
# priority = ":".join(("NONE", "+VERS-TLS1.1",
2339
# "+AES-256-CBC", "+SHA1",
2340
# "+COMP-NULL", "+CTYPE-OPENPGP",
2341
# "+DHE-DSS"))
1692
2342
# Use a fallback default, since this MUST be set.
1693
2343
priority = self.server.gnutls_priority
1694
2344
if priority is None:
1695
2345
priority = "NORMAL"
1696
(gnutls.library.functions
1697
.gnutls_priority_set_direct(session._c_object,
1698
priority, None))
1699
2346
gnutls.priority_set_direct(session,
2347
priority.encode("utf-8"), None)
2348
1700
2349
# Start communication using the Mandos protocol
1701
2350
# Get protocol number
1702
2351
line = self.request.makefile().readline()
1703
logger.debug("Protocol version: %r", line)
2352
log.debug("Protocol version: %r", line)
1704
2353
try:
1705
2354
if int(line.strip().split()[0]) > 1:
1706
2355
raise RuntimeError(line)
1707
2356
except (ValueError, IndexError, RuntimeError) as error:
1708
logger.error("Unknown protocol version: %s", error)
2357
log.error("Unknown protocol version: %s", error)
1709
2358
return
1710
2359
1711
2360
# Start GnuTLS connection
1712
2361
try:
1713
2362
session.handshake()
1714
except gnutls.errors.GNUTLSError as error:
1715
logger.warning("Handshake failed: %s", error)
2363
except gnutls.Error as error:
2364
log.warning("Handshake failed: %s", error)
1716
2365
# Do not run session.bye() here: the session is not
1717
2366
# established. Just abandon the request.
1718
2367
return
1719
logger.debug("Handshake succeeded")
1720
2368
log.debug("Handshake succeeded")
2369
1721
2370
approval_required = False
1722
2371
try:
1723
try:
1724
fpr = self.fingerprint(self.peer_certificate
1725
(session))
1726
except (TypeError,
1727
gnutls.errors.GNUTLSError) as error:
1728
logger.warning("Bad certificate: %s", error)
1729
return
1730
logger.debug("Fingerprint: %s", fpr)
1731
1732
try:
1733
client = ProxyClient(child_pipe, fpr,
2372
if gnutls.has_rawpk:
2373
fpr = b""
2374
try:
2375
key_id = self.key_id(
2376
self.peer_certificate(session))
2377
except (TypeError, gnutls.Error) as error:
2378
log.warning("Bad certificate: %s", error)
2379
return
2380
log.debug("Key ID: %s",
2381
key_id.decode("utf-8",
2382
errors="replace"))
2383
2384
else:
2385
key_id = b""
2386
try:
2387
fpr = self.fingerprint(
2388
self.peer_certificate(session))
2389
except (TypeError, gnutls.Error) as error:
2390
log.warning("Bad certificate: %s", error)
2391
return
2392
log.debug("Fingerprint: %s", fpr)
2393
2394
try:
2395
client = ProxyClient(child_pipe, key_id, fpr,
1734
2396
self.client_address)
1735
2397
except KeyError:
1736
2398
return
1737
2399
1738
2400
if client.approval_delay:
1739
2401
delay = client.approval_delay
1740
2402
client.approvals_pending += 1
1741
2403
approval_required = True
1742
2404
1743
2405
while True:
1744
2406
if not client.enabled:
1745
logger.info("Client %s is disabled",
1746
client.name)
2407
log.info("Client %s is disabled", client.name)
1747
2408
if self.server.use_dbus:
1748
2409
# Emit D-Bus signal
1749
2410
client.Rejected("Disabled")
1750
2411
return
1751
2412
1752
2413
if client.approved or not client.approval_delay:
1753
#We are approved or approval is disabled
2414
# We are approved or approval is disabled
1754
2415
break
1755
2416
elif client.approved is None:
1756
logger.info("Client %s needs approval",
2417
log.info("Client %s needs approval",
2418
client.name)
2419
if self.server.use_dbus:
2420
# Emit D-Bus signal
2421
client.NeedApproval(
2422
client.approval_delay.total_seconds()
2423
* 1000, client.approved_by_default)
2424
else:
2425
log.warning("Client %s was not approved",
1757
2426
client.name)
1758
2427
if self.server.use_dbus:
1759
2428
# Emit D-Bus signal
1760
client.NeedApproval(
1761
client.approval_delay_milliseconds(),
1762
client.approved_by_default)
1763
else:
1764
logger.warning("Client %s was not approved",
1765
client.name)
1766
if self.server.use_dbus:
1767
# Emit D-Bus signal
1768
2429
client.Rejected("Denied")
1769
2430
return
1770
1771
#wait until timeout or approved
2431
2432
# wait until timeout or approved
1772
2433
time = datetime.datetime.now()
1773
2434
client.changedstate.acquire()
1774
client.changedstate.wait(
1775
float(timedelta_to_milliseconds(delay)
1776
/ 1000))
2435
client.changedstate.wait(delay.total_seconds())
1777
2436
client.changedstate.release()
1778
2437
time2 = datetime.datetime.now()
1779
2438
if (time2 - time) >= delay:
1780
2439
if not client.approved_by_default:
1781
logger.warning("Client %s timed out while"
1782
" waiting for approval",
1783
client.name)
2440
log.warning("Client %s timed out while"
2441
" waiting for approval",
2442
client.name)
1784
2443
if self.server.use_dbus:
1785
2444
# Emit D-Bus signal
1786
2445
client.Rejected("Approval timed out")
1789
2448
break
1790
2449
else:
1791
2450
delay -= time2 - time
1792
1793
sent_size = 0
1794
while sent_size < len(client.secret):
1795
try:
1796
sent = session.send(client.secret[sent_size:])
1797
except gnutls.errors.GNUTLSError as error:
1798
logger.warning("gnutls send failed",
1799
exc_info=error)
1800
return
1801
logger.debug("Sent: %d, remaining: %d",
1802
sent, len(client.secret)
1803
- (sent_size + sent))
1804
sent_size += sent
1805
1806
logger.info("Sending secret to %s", client.name)
2451
2452
try:
2453
session.send(client.secret)
2454
except gnutls.Error as error:
2455
log.warning("gnutls send failed", exc_info=error)
2456
return
2457
2458
log.info("Sending secret to %s", client.name)
1807
2459
# bump the timeout using extended_timeout
1808
2460
client.bump_timeout(client.extended_timeout)
1809
2461
if self.server.use_dbus:
1810
2462
# Emit D-Bus signal
1811
2463
client.GotSecret()
1812
2464
1813
2465
finally:
1814
2466
if approval_required:
1815
2467
client.approvals_pending -= 1
1816
2468
try:
1817
2469
session.bye()
1818
except gnutls.errors.GNUTLSError as error:
1819
logger.warning("GnuTLS bye failed",
1820
exc_info=error)
1821
2470
except gnutls.Error as error:
2471
log.warning("GnuTLS bye failed", exc_info=error)
2472
1822
2473
@staticmethod
1823
2474
def peer_certificate(session):
1824
"Return the peer's OpenPGP certificate as a bytestring"
1825
# If not an OpenPGP certificate...
1826
if (gnutls.library.functions
1827
.gnutls_certificate_type_get(session._c_object)
1828
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1829
# ...do the normal thing
1830
return session.peer_certificate
2475
"Return the peer's certificate as a bytestring"
2476
try:
2477
cert_type = gnutls.certificate_type_get2(
2478
session, gnutls.CTYPE_PEERS)
2479
except AttributeError:
2480
cert_type = gnutls.certificate_type_get(session)
2481
if gnutls.has_rawpk:
2482
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2483
else:
2484
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2485
# If not a valid certificate type...
2486
if cert_type not in valid_cert_types:
2487
log.info("Cert type %r not in %r", cert_type,
2488
valid_cert_types)
2489
# ...return invalid data
2490
return b""
1831
2491
list_size = ctypes.c_uint(1)
1832
cert_list = (gnutls.library.functions
1833
.gnutls_certificate_get_peers
1834
(session._c_object, ctypes.byref(list_size)))
2492
cert_list = (gnutls.certificate_get_peers
2493
(session, ctypes.byref(list_size)))
1835
2494
if not bool(cert_list) and list_size.value != 0:
1836
raise gnutls.errors.GNUTLSError("error getting peer"
1837
" certificate")
2495
raise gnutls.Error("error getting peer certificate")
1838
2496
if list_size.value == 0:
1839
2497
return None
1840
2498
cert = cert_list[0]
1841
2499
return ctypes.string_at(cert.data, cert.size)
1842
2500
2501
@staticmethod
2502
def key_id(certificate):
2503
"Convert a certificate bytestring to a hexdigit key ID"
2504
# New GnuTLS "datum" with the public key
2505
datum = gnutls.datum_t(
2506
ctypes.cast(ctypes.c_char_p(certificate),
2507
ctypes.POINTER(ctypes.c_ubyte)),
2508
ctypes.c_uint(len(certificate)))
2509
# XXX all these need to be created in the gnutls "module"
2510
# New empty GnuTLS certificate
2511
pubkey = gnutls.pubkey_t()
2512
gnutls.pubkey_init(ctypes.byref(pubkey))
2513
# Import the raw public key into the certificate
2514
gnutls.pubkey_import(pubkey,
2515
ctypes.byref(datum),
2516
gnutls.X509_FMT_DER)
2517
# New buffer for the key ID
2518
buf = ctypes.create_string_buffer(32)
2519
buf_len = ctypes.c_size_t(len(buf))
2520
# Get the key ID from the raw public key into the buffer
2521
gnutls.pubkey_get_key_id(
2522
pubkey,
2523
gnutls.KEYID_USE_SHA256,
2524
ctypes.cast(ctypes.byref(buf),
2525
ctypes.POINTER(ctypes.c_ubyte)),
2526
ctypes.byref(buf_len))
2527
# Deinit the certificate
2528
gnutls.pubkey_deinit(pubkey)
2529
2530
# Convert the buffer to a Python bytestring
2531
key_id = ctypes.string_at(buf, buf_len.value)
2532
# Convert the bytestring to hexadecimal notation
2533
hex_key_id = binascii.hexlify(key_id).upper()
2534
return hex_key_id
2535
1843
2536
@staticmethod
1844
2537
def fingerprint(openpgp):
1845
2538
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1846
2539
# New GnuTLS "datum" with the OpenPGP public key
1847
datum = (gnutls.library.types
1848
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1849
ctypes.POINTER
1850
(ctypes.c_ubyte)),
1851
ctypes.c_uint(len(openpgp))))
2540
datum = gnutls.datum_t(
2541
ctypes.cast(ctypes.c_char_p(openpgp),
2542
ctypes.POINTER(ctypes.c_ubyte)),
2543
ctypes.c_uint(len(openpgp)))
1852
2544
# New empty GnuTLS certificate
1853
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1854
(gnutls.library.functions
1855
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2545
crt = gnutls.openpgp_crt_t()
2546
gnutls.openpgp_crt_init(ctypes.byref(crt))
1856
2547
# Import the OpenPGP public key into the certificate
1857
(gnutls.library.functions
1858
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1859
gnutls.library.constants
1860
.GNUTLS_OPENPGP_FMT_RAW))
2548
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2549
gnutls.OPENPGP_FMT_RAW)
1861
2550
# Verify the self signature in the key
1862
2551
crtverify = ctypes.c_uint()
1863
(gnutls.library.functions
1864
.gnutls_openpgp_crt_verify_self(crt, 0,
1865
ctypes.byref(crtverify)))
2552
gnutls.openpgp_crt_verify_self(crt, 0,
2553
ctypes.byref(crtverify))
1866
2554
if crtverify.value != 0:
1867
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1868
raise (gnutls.errors.CertificateSecurityError
1869
("Verify failed"))
2555
gnutls.openpgp_crt_deinit(crt)
2556
raise gnutls.CertificateSecurityError(code
2557
=crtverify.value)
1870
2558
# New buffer for the fingerprint
1871
2559
buf = ctypes.create_string_buffer(20)
1872
2560
buf_len = ctypes.c_size_t()
1873
2561
# Get the fingerprint from the certificate into the buffer
1874
(gnutls.library.functions
1875
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1876
ctypes.byref(buf_len)))
2562
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2563
ctypes.byref(buf_len))
1877
2564
# Deinit the certificate
1878
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2565
gnutls.openpgp_crt_deinit(crt)
1879
2566
# Convert the buffer to a Python bytestring
1880
2567
fpr = ctypes.string_at(buf, buf_len.value)
1881
2568
# Convert the bytestring to hexadecimal notation
1883
2570
return hex_fpr
1884
2571
1885
2572
1886
class MultiprocessingMixIn(object):
2573
class MultiprocessingMixIn:
1887
2574
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2575
1888
2576
def sub_process_main(self, request, address):
1889
2577
try:
1890
2578
self.finish_request(request, address)
1891
2579
except Exception:
1892
2580
self.handle_error(request, address)
1893
2581
self.close_request(request)
1894
2582
1895
2583
def process_request(self, request, address):
1896
2584
"""Start a new process to process the request."""
1897
proc = multiprocessing.Process(target = self.sub_process_main,
1898
args = (request, address))
2585
proc = multiprocessing.Process(target=self.sub_process_main,
2586
args=(request, address))
1899
2587
proc.start()
1900
2588
return proc
1901
2589
1902
2590
1903
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2591
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1904
2592
""" adds a pipe to the MixIn """
2593
1905
2594
def process_request(self, request, client_address):
1906
2595
"""Overrides and wraps the original process_request().
1907
2596
1908
2597
This function creates a new pipe in self.pipe
1909
2598
"""
1910
2599
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1911
2600
1912
2601
proc = MultiprocessingMixIn.process_request(self, request,
1913
2602
client_address)
1914
2603
self.child_pipe.close()
1915
2604
self.add_pipe(parent_pipe, proc)
1916
2605
1917
2606
def add_pipe(self, parent_pipe, proc):
1918
2607
"""Dummy function; override as necessary"""
1919
2608
raise NotImplementedError()
1920
2609
1921
2610
1922
2611
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1923
socketserver.TCPServer, object):
1924
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1925
2612
socketserver.TCPServer):
2613
"""IPv6-capable TCP server. Accepts None as address and/or port
2614
1926
2615
Attributes:
1927
2616
enabled: Boolean; whether this server is activated yet
1928
2617
interface: None or a network interface name (string)
1929
2618
use_ipv6: Boolean; to use IPv6 or not
1930
2619
"""
2620
1931
2621
def __init__(self, server_address, RequestHandlerClass,
1932
interface=None, use_ipv6=True, socketfd=None):
2622
interface=None,
2623
use_ipv6=True,
2624
socketfd=None):
1933
2625
"""If socketfd is set, use that file descriptor instead of
1934
2626
creating a new one with socket.socket().
1935
2627
"""
1941
2633
self.socketfd = socketfd
1942
2634
# Save the original socket.socket() function
1943
2635
self.socket_socket = socket.socket
2636
1944
2637
# To implement --socket, we monkey patch socket.socket.
1945
#
2638
#
1946
2639
# (When socketserver.TCPServer is a new-style class, we
1947
2640
# could make self.socket into a property instead of monkey
1948
2641
# patching socket.socket.)
1949
#
2642
#
1950
2643
# Create a one-time-only replacement for socket.socket()
1951
2644
@functools.wraps(socket.socket)
1952
2645
def socket_wrapper(*args, **kwargs):
1964
2657
# socket_wrapper(), if socketfd was set.
1965
2658
socketserver.TCPServer.__init__(self, server_address,
1966
2659
RequestHandlerClass)
1967
2660
1968
2661
def server_bind(self):
1969
2662
"""This overrides the normal server_bind() function
1970
2663
to bind to an interface if one was specified, and also NOT to
1971
2664
bind to an address or port if they were not specified."""
2665
global SO_BINDTODEVICE
1972
2666
if self.interface is not None:
1973
2667
if SO_BINDTODEVICE is None:
1974
logger.error("SO_BINDTODEVICE does not exist;"
1975
" cannot bind to interface %s",
1976
self.interface)
1977
else:
1978
try:
1979
self.socket.setsockopt(socket.SOL_SOCKET,
1980
SO_BINDTODEVICE,
1981
str(self.interface + '\0'))
1982
except socket.error as error:
1983
if error.errno == errno.EPERM:
1984
logger.error("No permission to bind to"
1985
" interface %s", self.interface)
1986
elif error.errno == errno.ENOPROTOOPT:
1987
logger.error("SO_BINDTODEVICE not available;"
1988
" cannot bind to interface %s",
1989
self.interface)
1990
elif error.errno == errno.ENODEV:
1991
logger.error("Interface %s does not exist,"
1992
" cannot bind", self.interface)
1993
else:
1994
raise
2668
# Fall back to a hard-coded value which seems to be
2669
# common enough.
2670
log.warning("SO_BINDTODEVICE not found, trying 25")
2671
SO_BINDTODEVICE = 25
2672
try:
2673
self.socket.setsockopt(
2674
socket.SOL_SOCKET, SO_BINDTODEVICE,
2675
(self.interface + "\0").encode("utf-8"))
2676
except socket.error as error:
2677
if error.errno == errno.EPERM:
2678
log.error("No permission to bind to interface %s",
2679
self.interface)
2680
elif error.errno == errno.ENOPROTOOPT:
2681
log.error("SO_BINDTODEVICE not available; cannot"
2682
" bind to interface %s", self.interface)
2683
elif error.errno == errno.ENODEV:
2684
log.error("Interface %s does not exist, cannot"
2685
" bind", self.interface)
2686
else:
2687
raise
1995
2688
# Only bind(2) the socket if we really need to.
1996
2689
if self.server_address[0] or self.server_address[1]:
2690
if self.server_address[1]:
2691
self.allow_reuse_address = True
1997
2692
if not self.server_address[0]:
1998
2693
if self.address_family == socket.AF_INET6:
1999
any_address = "::" # in6addr_any
2694
any_address = "::" # in6addr_any
2000
2695
else:
2001
any_address = "0.0.0.0" # INADDR_ANY
2696
any_address = "0.0.0.0" # INADDR_ANY
2002
2697
self.server_address = (any_address,
2003
2698
self.server_address[1])
2004
2699
elif not self.server_address[1]:
2005
self.server_address = (self.server_address[0],
2006
0)
2700
self.server_address = (self.server_address[0], 0)
2007
2701
# if self.interface:
2008
2702
# self.server_address = (self.server_address[0],
2009
2703
# 0, # port
2015
2709
2016
2710
class MandosServer(IPv6_TCPServer):
2017
2711
"""Mandos server.
2018
2712
2019
2713
Attributes:
2020
2714
clients: set of Client objects
2021
2715
gnutls_priority GnuTLS priority string
2022
2716
use_dbus: Boolean; to emit D-Bus signals or not
2023
2024
Assumes a gobject.MainLoop event loop.
2717
2718
Assumes a GLib.MainLoop event loop.
2025
2719
"""
2720
2026
2721
def __init__(self, server_address, RequestHandlerClass,
2027
interface=None, use_ipv6=True, clients=None,
2028
gnutls_priority=None, use_dbus=True, socketfd=None):
2722
interface=None,
2723
use_ipv6=True,
2724
clients=None,
2725
gnutls_priority=None,
2726
use_dbus=True,
2727
socketfd=None):
2029
2728
self.enabled = False
2030
2729
self.clients = clients
2031
2730
if self.clients is None:
2034
2733
self.gnutls_priority = gnutls_priority
2035
2734
IPv6_TCPServer.__init__(self, server_address,
2036
2735
RequestHandlerClass,
2037
interface = interface,
2038
use_ipv6 = use_ipv6,
2039
socketfd = socketfd)
2736
interface=interface,
2737
use_ipv6=use_ipv6,
2738
socketfd=socketfd)
2739
2040
2740
def server_activate(self):
2041
2741
if self.enabled:
2042
2742
return socketserver.TCPServer.server_activate(self)
2043
2743
2044
2744
def enable(self):
2045
2745
self.enabled = True
2046
2746
2047
2747
def add_pipe(self, parent_pipe, proc):
2048
2748
# Call "handle_ipc" for both data and EOF events
2049
gobject.io_add_watch(parent_pipe.fileno(),
2050
gobject.IO_IN | gobject.IO_HUP,
2051
functools.partial(self.handle_ipc,
2052
parent_pipe =
2053
parent_pipe,
2054
proc = proc))
2055
2056
def handle_ipc(self, source, condition, parent_pipe=None,
2057
proc = None, client_object=None):
2749
GLib.io_add_watch(
2750
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2751
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2752
functools.partial(self.handle_ipc,
2753
parent_pipe=parent_pipe,
2754
proc=proc))
2755
2756
def handle_ipc(self, source, condition,
2757
parent_pipe=None,
2758
proc=None,
2759
client_object=None):
2058
2760
# error, or the other end of multiprocessing.Pipe has closed
2059
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2761
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2060
2762
# Wait for other process to exit
2061
2763
proc.join()
2062
2764
return False
2063
2765
2064
2766
# Read a request from the child
2065
2767
request = parent_pipe.recv()
2066
2768
command = request[0]
2067
2068
if command == 'init':
2069
fpr = request[1]
2070
address = request[2]
2071
2072
for c in self.clients.itervalues():
2073
if c.fingerprint == fpr:
2769
2770
if command == "init":
2771
key_id = request[1].decode("ascii")
2772
fpr = request[2].decode("ascii")
2773
address = request[3]
2774
2775
for c in self.clients.values():
2776
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2777
"27AE41E4649B934CA495991B7852B855"):
2778
continue
2779
if key_id and c.key_id == key_id:
2780
client = c
2781
break
2782
if fpr and c.fingerprint == fpr:
2074
2783
client = c
2075
2784
break
2076
2785
else:
2077
logger.info("Client not found for fingerprint: %s, ad"
2078
"dress: %s", fpr, address)
2786
log.info("Client not found for key ID: %s, address:"
2787
" %s", key_id or fpr, address)
2079
2788
if self.use_dbus:
2080
2789
# Emit D-Bus signal
2081
mandos_dbus_service.ClientNotFound(fpr,
2790
mandos_dbus_service.ClientNotFound(key_id or fpr,
2082
2791
address[0])
2083
2792
parent_pipe.send(False)
2084
2793
return False
2085
2086
gobject.io_add_watch(parent_pipe.fileno(),
2087
gobject.IO_IN | gobject.IO_HUP,
2088
functools.partial(self.handle_ipc,
2089
parent_pipe =
2090
parent_pipe,
2091
proc = proc,
2092
client_object =
2093
client))
2794
2795
GLib.io_add_watch(
2796
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2797
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2798
functools.partial(self.handle_ipc,
2799
parent_pipe=parent_pipe,
2800
proc=proc,
2801
client_object=client))
2094
2802
parent_pipe.send(True)
2095
2803
# remove the old hook in favor of the new above hook on
2096
2804
# same fileno
2097
2805
return False
2098
if command == 'funcall':
2806
if command == "funcall":
2099
2807
funcname = request[1]
2100
2808
args = request[2]
2101
2809
kwargs = request[3]
2102
2103
parent_pipe.send(('data', getattr(client_object,
2810
2811
parent_pipe.send(("data", getattr(client_object,
2104
2812
funcname)(*args,
2105
**kwargs)))
2106
2107
if command == 'getattr':
2813
**kwargs)))
2814
2815
if command == "getattr":
2108
2816
attrname = request[1]
2109
if callable(client_object.__getattribute__(attrname)):
2110
parent_pipe.send(('function',))
2817
if isinstance(client_object.__getattribute__(attrname),
2818
collections.abc.Callable):
2819
parent_pipe.send(("function", ))
2111
2820
else:
2112
parent_pipe.send(('data', client_object
2113
.__getattribute__(attrname)))
2114
2115
if command == 'setattr':
2821
parent_pipe.send((
2822
"data", client_object.__getattribute__(attrname)))
2823
2824
if command == "setattr":
2116
2825
attrname = request[1]
2117
2826
value = request[2]
2118
2827
setattr(client_object, attrname, value)
2119
2828
2120
2829
return True
2121
2830
2122
2831
2123
2832
def rfc3339_duration_to_delta(duration):
2124
2833
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2125
2126
>>> rfc3339_duration_to_delta("P7D")
2127
datetime.timedelta(7)
2128
>>> rfc3339_duration_to_delta("PT60S")
2129
datetime.timedelta(0, 60)
2130
>>> rfc3339_duration_to_delta("PT60M")
2131
datetime.timedelta(0, 3600)
2132
>>> rfc3339_duration_to_delta("PT24H")
2133
datetime.timedelta(1)
2134
>>> rfc3339_duration_to_delta("P1W")
2135
datetime.timedelta(7)
2136
>>> rfc3339_duration_to_delta("PT5M30S")
2137
datetime.timedelta(0, 330)
2138
>>> rfc3339_duration_to_delta("P1DT3M20S")
2139
datetime.timedelta(1, 200)
2834
2835
>>> timedelta = datetime.timedelta
2836
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2837
True
2838
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2839
True
2840
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2841
True
2842
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2843
True
2844
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2845
True
2846
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2847
True
2848
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2849
True
2850
>>> del timedelta
2140
2851
"""
2141
2852
2142
2853
# Parsing an RFC 3339 duration with regular expressions is not
2143
2854
# possible - there would have to be multiple places for the same
2144
2855
# values, like seconds. The current code, while more esoteric, is
2145
2856
# cleaner without depending on a parsing library. If Python had a
2146
2857
# built-in library for parsing we would use it, but we'd like to
2147
2858
# avoid excessive use of external libraries.
2148
2859
2149
2860
# New type for defining tokens, syntax, and semantics all-in-one
2150
Token = collections.namedtuple("Token",
2151
("regexp", # To match token; if
2152
# "value" is not None,
2153
# must have a "group"
2154
# containing digits
2155
"value", # datetime.timedelta or
2156
# None
2157
"followers")) # Tokens valid after
2158
# this token
2861
Token = collections.namedtuple("Token", (
2862
"regexp", # To match token; if "value" is not None, must have
2863
# a "group" containing digits
2864
"value", # datetime.timedelta or None
2865
"followers")) # Tokens valid after this token
2159
2866
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2160
2867
# the "duration" ABNF definition in RFC 3339, Appendix A.
2161
2868
token_end = Token(re.compile(r"$"), None, frozenset())
2162
2869
token_second = Token(re.compile(r"(\d+)S"),
2163
2870
datetime.timedelta(seconds=1),
2164
frozenset((token_end,)))
2871
frozenset((token_end, )))
2165
2872
token_minute = Token(re.compile(r"(\d+)M"),
2166
2873
datetime.timedelta(minutes=1),
2167
2874
frozenset((token_second, token_end)))
2183
2890
frozenset((token_month, token_end)))
2184
2891
token_week = Token(re.compile(r"(\d+)W"),
2185
2892
datetime.timedelta(weeks=1),
2186
frozenset((token_end,)))
2893
frozenset((token_end, )))
2187
2894
token_duration = Token(re.compile(r"P"), None,
2188
2895
frozenset((token_year, token_month,
2189
2896
token_day, token_time,
2190
token_week))),
2191
# Define starting values
2192
value = datetime.timedelta() # Value so far
2897
token_week)))
2898
# Define starting values:
2899
# Value so far
2900
value = datetime.timedelta()
2193
2901
found_token = None
2194
followers = frozenset(token_duration,) # Following valid tokens
2195
s = duration # String left to parse
2902
# Following valid tokens
2903
followers = frozenset((token_duration, ))
2904
# String left to parse
2905
s = duration
2196
2906
# Loop until end token is found
2197
2907
while found_token is not token_end:
2198
2908
# Search for any currently valid tokens
2214
2924
break
2215
2925
else:
2216
2926
# No currently valid tokens were found
2217
raise ValueError("Invalid RFC 3339 duration")
2927
raise ValueError("Invalid RFC 3339 duration: {!r}"
2928
.format(duration))
2218
2929
# End token found
2219
2930
return value
2220
2931
2221
2932
2222
2933
def string_to_delta(interval):
2223
2934
"""Parse a string and return a datetime.timedelta
2224
2225
>>> string_to_delta('7d')
2226
datetime.timedelta(7)
2227
>>> string_to_delta('60s')
2228
datetime.timedelta(0, 60)
2229
>>> string_to_delta('60m')
2230
datetime.timedelta(0, 3600)
2231
>>> string_to_delta('24h')
2232
datetime.timedelta(1)
2233
>>> string_to_delta('1w')
2234
datetime.timedelta(7)
2235
>>> string_to_delta('5m 30s')
2236
datetime.timedelta(0, 330)
2935
2936
>>> string_to_delta("7d") == datetime.timedelta(7)
2937
True
2938
>>> string_to_delta("60s") == datetime.timedelta(0, 60)
2939
True
2940
>>> string_to_delta("60m") == datetime.timedelta(0, 3600)
2941
True
2942
>>> string_to_delta("24h") == datetime.timedelta(1)
2943
True
2944
>>> string_to_delta("1w") == datetime.timedelta(7)
2945
True
2946
>>> string_to_delta("5m 30s") == datetime.timedelta(0, 330)
2947
True
2237
2948
"""
2238
2949
2239
2950
try:
2240
2951
return rfc3339_duration_to_delta(interval)
2241
2952
except ValueError:
2242
2953
pass
2243
2954
2244
2955
timevalue = datetime.timedelta(0)
2245
2956
for s in interval.split():
2246
2957
try:
2247
suffix = unicode(s[-1])
2958
suffix = s[-1]
2248
2959
value = int(s[:-1])
2249
2960
if suffix == "d":
2250
2961
delta = datetime.timedelta(value)
2257
2968
elif suffix == "w":
2258
2969
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2259
2970
else:
2260
raise ValueError("Unknown suffix {0!r}"
2261
.format(suffix))
2971
raise ValueError("Unknown suffix {!r}".format(suffix))
2262
2972
except IndexError as e:
2263
2973
raise ValueError(*(e.args))
2264
2974
timevalue += delta
2265
2975
return timevalue
2266
2976
2267
2977
2268
def daemon(nochdir = False, noclose = False):
2978
def daemon(nochdir=False, noclose=False):
2269
2979
"""See daemon(3). Standard BSD Unix function.
2270
2980
2271
2981
This should really exist as os.daemon, but it doesn't (yet)."""
2272
2982
if os.fork():
2273
2983
sys.exit()
2281
2991
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2282
2992
if not stat.S_ISCHR(os.fstat(null).st_mode):
2283
2993
raise OSError(errno.ENODEV,
2284
"{0} not a character device"
2994
"{} not a character device"
2285
2995
.format(os.devnull))
2286
2996
os.dup2(null, sys.stdin.fileno())
2287
2997
os.dup2(null, sys.stdout.fileno())
2291
3001
2292
3002
2293
3003
def main():
2294
3004
2295
3005
##################################################################
2296
3006
# Parsing of options, both command line and config file
2297
3007
2298
3008
parser = argparse.ArgumentParser()
2299
3009
parser.add_argument("-v", "--version", action="version",
2300
version = "%(prog)s {0}".format(version),
3010
version="%(prog)s {}".format(version),
2301
3011
help="show version number and exit")
2302
3012
parser.add_argument("-i", "--interface", metavar="IF",
2303
3013
help="Bind to interface IF")
2336
3046
help="Directory to save/restore state in")
2337
3047
parser.add_argument("--foreground", action="store_true",
2338
3048
help="Run in foreground", default=None)
2339
3049
parser.add_argument("--no-zeroconf", action="store_false",
3050
dest="zeroconf", help="Do not use Zeroconf",
3051
default=None)
3052
2340
3053
options = parser.parse_args()
2341
2342
if options.check:
2343
import doctest
2344
fail_count, test_count = doctest.testmod()
2345
sys.exit(os.EX_OK if fail_count == 0 else 1)
2346
3054
2347
3055
# Default values for config file for server-global settings
2348
server_defaults = { "interface": "",
2349
"address": "",
2350
"port": "",
2351
"debug": "False",
2352
"priority":
2353
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
2354
"servicename": "Mandos",
2355
"use_dbus": "True",
2356
"use_ipv6": "True",
2357
"debuglevel": "",
2358
"restore": "True",
2359
"socket": "",
2360
"statedir": "/var/lib/mandos",
2361
"foreground": "False",
2362
}
2363
3056
if gnutls.has_rawpk:
3057
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3058
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3059
else:
3060
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3061
":+SIGN-DSA-SHA256")
3062
server_defaults = {"interface": "",
3063
"address": "",
3064
"port": "",
3065
"debug": "False",
3066
"priority": priority,
3067
"servicename": "Mandos",
3068
"use_dbus": "True",
3069
"use_ipv6": "True",
3070
"debuglevel": "",
3071
"restore": "True",
3072
"socket": "",
3073
"statedir": "/var/lib/mandos",
3074
"foreground": "False",
3075
"zeroconf": "True",
3076
}
3077
del priority
3078
2364
3079
# Parse config file for server-global settings
2365
server_config = configparser.SafeConfigParser(server_defaults)
3080
server_config = configparser.ConfigParser(server_defaults)
2366
3081
del server_defaults
2367
server_config.read(os.path.join(options.configdir,
2368
"mandos.conf"))
2369
# Convert the SafeConfigParser object to a dict
3082
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3083
# Convert the ConfigParser object to a dict
2370
3084
server_settings = server_config.defaults()
2371
3085
# Use the appropriate methods on the non-string config options
2372
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
3086
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3087
"foreground", "zeroconf"):
2373
3088
server_settings[option] = server_config.getboolean("DEFAULT",
2374
3089
option)
2375
3090
if server_settings["port"]:
2381
3096
# Later, stdin will, and stdout and stderr might, be dup'ed
2382
3097
# over with an opened os.devnull. But we don't want this to
2383
3098
# happen with a supplied network socket.
2384
if 0 <= server_settings["socket"] <= 2:
3099
while 0 <= server_settings["socket"] <= 2:
2385
3100
server_settings["socket"] = os.dup(server_settings
2386
3101
["socket"])
2387
3102
del server_config
2388
3103
2389
3104
# Override the settings from the config file with command line
2390
3105
# options, if set.
2391
3106
for option in ("interface", "address", "port", "debug",
2392
"priority", "servicename", "configdir",
2393
"use_dbus", "use_ipv6", "debuglevel", "restore",
2394
"statedir", "socket", "foreground"):
3107
"priority", "servicename", "configdir", "use_dbus",
3108
"use_ipv6", "debuglevel", "restore", "statedir",
3109
"socket", "foreground", "zeroconf"):
2395
3110
value = getattr(options, option)
2396
3111
if value is not None:
2397
3112
server_settings[option] = value
2398
3113
del options
2399
3114
# Force all strings to be unicode
2400
3115
for option in server_settings.keys():
2401
if type(server_settings[option]) is str:
2402
server_settings[option] = unicode(server_settings[option])
3116
if isinstance(server_settings[option], bytes):
3117
server_settings[option] = (server_settings[option]
3118
.decode("utf-8"))
2403
3119
# Force all boolean options to be boolean
2404
3120
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2405
"foreground"):
3121
"foreground", "zeroconf"):
2406
3122
server_settings[option] = bool(server_settings[option])
2407
3123
# Debug implies foreground
2408
3124
if server_settings["debug"]:
2409
3125
server_settings["foreground"] = True
2410
3126
# Now we have our good server settings in "server_settings"
2411
3127
2412
3128
##################################################################
2413
3129
3130
if (not server_settings["zeroconf"]
3131
and not (server_settings["port"]
3132
or server_settings["socket"] != "")):
3133
parser.error("Needs port or socket to work without Zeroconf")
3134
2414
3135
# For convenience
2415
3136
debug = server_settings["debug"]
2416
3137
debuglevel = server_settings["debuglevel"]
2419
3140
stored_state_path = os.path.join(server_settings["statedir"],
2420
3141
stored_state_file)
2421
3142
foreground = server_settings["foreground"]
2422
3143
zeroconf = server_settings["zeroconf"]
3144
2423
3145
if debug:
2424
3146
initlogger(debug, logging.DEBUG)
2425
3147
else:
2428
3150
else:
2429
3151
level = getattr(logging, debuglevel.upper())
2430
3152
initlogger(debug, level)
2431
3153
2432
3154
if server_settings["servicename"] != "Mandos":
2433
syslogger.setFormatter(logging.Formatter
2434
('Mandos ({0}) [%(process)d]:'
2435
' %(levelname)s: %(message)s'
2436
.format(server_settings
2437
["servicename"])))
2438
3155
syslogger.setFormatter(
3156
logging.Formatter("Mandos ({}) [%(process)d]:"
3157
" %(levelname)s: %(message)s".format(
3158
server_settings["servicename"])))
3159
2439
3160
# Parse config file with clients
2440
client_config = configparser.SafeConfigParser(Client
2441
.client_defaults)
3161
client_config = configparser.ConfigParser(Client.client_defaults)
2442
3162
client_config.read(os.path.join(server_settings["configdir"],
2443
3163
"clients.conf"))
2444
3164
2445
3165
global mandos_dbus_service
2446
3166
mandos_dbus_service = None
2447
2448
tcp_server = MandosServer((server_settings["address"],
2449
server_settings["port"]),
2450
ClientHandler,
2451
interface=(server_settings["interface"]
2452
or None),
2453
use_ipv6=use_ipv6,
2454
gnutls_priority=
2455
server_settings["priority"],
2456
use_dbus=use_dbus,
2457
socketfd=(server_settings["socket"]
2458
or None))
3167
3168
socketfd = None
3169
if server_settings["socket"] != "":
3170
socketfd = server_settings["socket"]
3171
tcp_server = MandosServer(
3172
(server_settings["address"], server_settings["port"]),
3173
ClientHandler,
3174
interface=(server_settings["interface"] or None),
3175
use_ipv6=use_ipv6,
3176
gnutls_priority=server_settings["priority"],
3177
use_dbus=use_dbus,
3178
socketfd=socketfd)
2459
3179
if not foreground:
2460
3180
pidfilename = "/run/mandos.pid"
2461
3181
if not os.path.isdir("/run/."):
2462
3182
pidfilename = "/var/run/mandos.pid"
2463
3183
pidfile = None
2464
3184
try:
2465
pidfile = open(pidfilename, "w")
3185
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2466
3186
except IOError as e:
2467
logger.error("Could not open file %r", pidfilename,
2468
exc_info=e)
2469
2470
for name in ("_mandos", "mandos", "nobody"):
3187
log.error("Could not open file %r", pidfilename,
3188
exc_info=e)
3189
3190
for name, group in (("_mandos", "_mandos"),
3191
("mandos", "mandos"),
3192
("nobody", "nogroup")):
2471
3193
try:
2472
3194
uid = pwd.getpwnam(name).pw_uid
2473
gid = pwd.getpwnam(name).pw_gid
3195
gid = pwd.getpwnam(group).pw_gid
2474
3196
break
2475
3197
except KeyError:
2476
3198
continue
2480
3202
try:
2481
3203
os.setgid(gid)
2482
3204
os.setuid(uid)
3205
log.debug("Did setuid/setgid to %s:%s", uid, gid)
2483
3206
except OSError as error:
3207
log.warning("Failed to setuid/setgid to %s:%s: %s", uid, gid,
3208
os.strerror(error.errno))
2484
3209
if error.errno != errno.EPERM:
2485
3210
raise
2486
3211
2487
3212
if debug:
2488
3213
# Enable all possible GnuTLS debugging
2489
3214
2490
3215
# "Use a log level over 10 to enable all debugging options."
2491
3216
# - GnuTLS manual
2492
gnutls.library.functions.gnutls_global_set_log_level(11)
2493
2494
@gnutls.library.types.gnutls_log_func
3217
gnutls.global_set_log_level(11)
3218
3219
@gnutls.log_func
2495
3220
def debug_gnutls(level, string):
2496
logger.debug("GnuTLS: %s", string[:-1])
2497
2498
(gnutls.library.functions
2499
.gnutls_global_set_log_function(debug_gnutls))
2500
3221
log.debug("GnuTLS: %s",
3222
string[:-1].decode("utf-8", errors="replace"))
3223
3224
gnutls.global_set_log_function(debug_gnutls)
3225
2501
3226
# Redirect stdin so all checkers get /dev/null
2502
3227
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2503
3228
os.dup2(null, sys.stdin.fileno())
2504
3229
if null > 2:
2505
3230
os.close(null)
2506
3231
2507
3232
# Need to fork before connecting to D-Bus
2508
3233
if not foreground:
2509
3234
# Close all input and output, do double fork, etc.
2510
3235
daemon()
2511
2512
# multiprocessing will use threads, so before we use gobject we
2513
# need to inform gobject that threads will be used.
2514
gobject.threads_init()
2515
3236
3237
if gi.version_info < (3, 10, 2):
3238
# multiprocessing will use threads, so before we use GLib we
3239
# need to inform GLib that threads will be used.
3240
GLib.threads_init()
3241
2516
3242
global main_loop
2517
3243
# From the Avahi example code
2518
3244
DBusGMainLoop(set_as_default=True)
2519
main_loop = gobject.MainLoop()
2520
bus = dbus.SystemBus()
3245
main_loop = GLib.MainLoop()
3246
if use_dbus or zeroconf:
3247
bus = dbus.SystemBus()
2521
3248
# End of Avahi example code
2522
3249
if use_dbus:
2523
3250
try:
2524
3251
bus_name = dbus.service.BusName("se.recompile.Mandos",
2525
bus, do_not_queue=True)
2526
old_bus_name = (dbus.service.BusName
2527
("se.bsnet.fukt.Mandos", bus,
2528
do_not_queue=True))
2529
except dbus.exceptions.NameExistsException as e:
2530
logger.error("Disabling D-Bus:", exc_info=e)
3252
bus,
3253
do_not_queue=True)
3254
old_bus_name = dbus.service.BusName(
3255
"se.bsnet.fukt.Mandos", bus,
3256
do_not_queue=True)
3257
except dbus.exceptions.DBusException as e:
3258
log.error("Disabling D-Bus:", exc_info=e)
2531
3259
use_dbus = False
2532
3260
server_settings["use_dbus"] = False
2533
3261
tcp_server.use_dbus = False
2534
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2535
service = AvahiServiceToSyslog(name =
2536
server_settings["servicename"],
2537
servicetype = "_mandos._tcp",
2538
protocol = protocol, bus = bus)
2539
if server_settings["interface"]:
2540
service.interface = (if_nametoindex
2541
(str(server_settings["interface"])))
2542
3262
if zeroconf:
3263
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3264
service = AvahiServiceToSyslog(
3265
name=server_settings["servicename"],
3266
servicetype="_mandos._tcp",
3267
protocol=protocol,
3268
bus=bus)
3269
if server_settings["interface"]:
3270
service.interface = if_nametoindex(
3271
server_settings["interface"].encode("utf-8"))
3272
2543
3273
global multiprocessing_manager
2544
3274
multiprocessing_manager = multiprocessing.Manager()
2545
3275
2546
3276
client_class = Client
2547
3277
if use_dbus:
2548
client_class = functools.partial(ClientDBus, bus = bus)
2549
3278
client_class = functools.partial(ClientDBus, bus=bus)
3279
2550
3280
client_settings = Client.config_parser(client_config)
2551
3281
old_client_settings = {}
2552
3282
clients_data = {}
2553
3283
2554
3284
# This is used to redirect stdout and stderr for checker processes
2555
3285
global wnull
2556
wnull = open(os.devnull, "w") # A writable /dev/null
3286
wnull = open(os.devnull, "w") # A writable /dev/null
2557
3287
# Only used if server is running in foreground but not in debug
2558
3288
# mode
2559
3289
if debug or not foreground:
2560
3290
wnull.close()
2561
3291
2562
3292
# Get client data and settings from last running state.
2563
3293
if server_settings["restore"]:
2564
3294
try:
2565
3295
with open(stored_state_path, "rb") as stored_state:
2566
clients_data, old_client_settings = (pickle.load
2567
(stored_state))
3296
if sys.version_info.major == 2:
3297
clients_data, old_client_settings = pickle.load(
3298
stored_state)
3299
else:
3300
bytes_clients_data, bytes_old_client_settings = (
3301
pickle.load(stored_state, encoding="bytes"))
3302
# Fix bytes to strings
3303
# clients_data
3304
# .keys()
3305
clients_data = {(key.decode("utf-8")
3306
if isinstance(key, bytes)
3307
else key): value
3308
for key, value in
3309
bytes_clients_data.items()}
3310
del bytes_clients_data
3311
for key in clients_data:
3312
value = {(k.decode("utf-8")
3313
if isinstance(k, bytes) else k): v
3314
for k, v in
3315
clients_data[key].items()}
3316
clients_data[key] = value
3317
# .client_structure
3318
value["client_structure"] = [
3319
(s.decode("utf-8")
3320
if isinstance(s, bytes)
3321
else s) for s in
3322
value["client_structure"]]
3323
# .name, .host, and .checker_command
3324
for k in ("name", "host", "checker_command"):
3325
if isinstance(value[k], bytes):
3326
value[k] = value[k].decode("utf-8")
3327
if "key_id" not in value:
3328
value["key_id"] = ""
3329
elif "fingerprint" not in value:
3330
value["fingerprint"] = ""
3331
# old_client_settings
3332
# .keys()
3333
old_client_settings = {
3334
(key.decode("utf-8")
3335
if isinstance(key, bytes)
3336
else key): value
3337
for key, value in
3338
bytes_old_client_settings.items()}
3339
del bytes_old_client_settings
3340
# .host and .checker_command
3341
for value in old_client_settings.values():
3342
for attribute in ("host", "checker_command"):
3343
if isinstance(value[attribute], bytes):
3344
value[attribute] = (value[attribute]
3345
.decode("utf-8"))
2568
3346
os.remove(stored_state_path)
2569
3347
except IOError as e:
2570
3348
if e.errno == errno.ENOENT:
2571
logger.warning("Could not load persistent state: {0}"
2572
.format(os.strerror(e.errno)))
3349
log.warning("Could not load persistent state:"
3350
" %s", os.strerror(e.errno))
2573
3351
else:
2574
logger.critical("Could not load persistent state:",
2575
exc_info=e)
3352
log.critical("Could not load persistent state:",
3353
exc_info=e)
2576
3354
raise
2577
3355
except EOFError as e:
2578
logger.warning("Could not load persistent state: "
2579
"EOFError:", exc_info=e)
2580
3356
log.warning("Could not load persistent state: EOFError:",
3357
exc_info=e)
3358
2581
3359
with PGPEngine() as pgp:
2582
for client_name, client in clients_data.iteritems():
3360
for client_name, client in clients_data.items():
2583
3361
# Skip removed clients
2584
3362
if client_name not in client_settings:
2585
3363
continue
2586
3364
2587
3365
# Decide which value to use after restoring saved state.
2588
3366
# We have three different values: Old config file,
2589
3367
# new config file, and saved state.
2594
3372
# For each value in new config, check if it
2595
3373
# differs from the old config value (Except for
2596
3374
# the "secret" attribute)
2597
if (name != "secret" and
2598
value != old_client_settings[client_name]
2599
[name]):
3375
if (name != "secret"
3376
and (value !=
3377
old_client_settings[client_name][name])):
2600
3378
client[name] = value
2601
3379
except KeyError:
2602
3380
pass
2603
3381
2604
3382
# Clients who has passed its expire date can still be
2605
# enabled if its last checker was successful. Clients
3383
# enabled if its last checker was successful. A Client
2606
3384
# whose checker succeeded before we stored its state is
2607
3385
# assumed to have successfully run all checkers during
2608
3386
# downtime.
2609
3387
if client["enabled"]:
2610
3388
if datetime.datetime.utcnow() >= client["expires"]:
2611
3389
if not client["last_checked_ok"]:
2612
logger.warning(
2613
"disabling client {0} - Client never "
2614
"performed a successful checker"
2615
.format(client_name))
3390
log.warning("disabling client %s - Client"
3391
" never performed a successful"
3392
" checker", client_name)
2616
3393
client["enabled"] = False
2617
3394
elif client["last_checker_status"] != 0:
2618
logger.warning(
2619
"disabling client {0} - Client "
2620
"last checker failed with error code {1}"
2621
.format(client_name,
2622
client["last_checker_status"]))
3395
log.warning("disabling client %s - Client"
3396
" last checker failed with error"
3397
" code %s", client_name,
3398
client["last_checker_status"])
2623
3399
client["enabled"] = False
2624
3400
else:
2625
client["expires"] = (datetime.datetime
2626
.utcnow()
2627
+ client["timeout"])
2628
logger.debug("Last checker succeeded,"
2629
" keeping {0} enabled"
2630
.format(client_name))
3401
client["expires"] = (
3402
datetime.datetime.utcnow()
3403
+ client["timeout"])
3404
log.debug("Last checker succeeded, keeping %s"
3405
" enabled", client_name)
2631
3406
try:
2632
client["secret"] = (
2633
pgp.decrypt(client["encrypted_secret"],
2634
client_settings[client_name]
2635
["secret"]))
3407
client["secret"] = pgp.decrypt(
3408
client["encrypted_secret"],
3409
client_settings[client_name]["secret"])
2636
3410
except PGPError:
2637
3411
# If decryption fails, we use secret from new settings
2638
logger.debug("Failed to decrypt {0} old secret"
2639
.format(client_name))
2640
client["secret"] = (
2641
client_settings[client_name]["secret"])
2642
3412
log.debug("Failed to decrypt %s old secret",
3413
client_name)
3414
client["secret"] = (client_settings[client_name]
3415
["secret"])
3416
2643
3417
# Add/remove clients based on new changes made to config
2644
3418
for client_name in (set(old_client_settings)
2645
3419
- set(client_settings)):
2647
3421
for client_name in (set(client_settings)
2648
3422
- set(old_client_settings)):
2649
3423
clients_data[client_name] = client_settings[client_name]
2650
3424
2651
3425
# Create all client objects
2652
for client_name, client in clients_data.iteritems():
3426
for client_name, client in clients_data.items():
2653
3427
tcp_server.clients[client_name] = client_class(
2654
name = client_name, settings = client,
2655
server_settings = server_settings)
2656
3428
name=client_name,
3429
settings=client,
3430
server_settings=server_settings)
3431
2657
3432
if not tcp_server.clients:
2658
logger.warning("No clients defined")
2659
3433
log.warning("No clients defined")
3434
2660
3435
if not foreground:
2661
3436
if pidfile is not None:
3437
pid = os.getpid()
2662
3438
try:
2663
3439
with pidfile:
2664
pid = os.getpid()
2665
pidfile.write(str(pid) + "\n".encode("utf-8"))
3440
print(pid, file=pidfile)
2666
3441
except IOError:
2667
logger.error("Could not write to file %r with PID %d",
2668
pidfilename, pid)
3442
log.error("Could not write to file %r with PID %d",
3443
pidfilename, pid)
2669
3444
del pidfile
2670
3445
del pidfilename
2671
2672
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2673
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2674
3446
3447
for termsig in (signal.SIGHUP, signal.SIGTERM):
3448
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3449
lambda: main_loop.quit() and False)
3450
2675
3451
if use_dbus:
2676
@alternate_dbus_interfaces({"se.recompile.Mandos":
2677
"se.bsnet.fukt.Mandos"})
2678
class MandosDBusService(DBusObjectWithProperties):
3452
3453
@alternate_dbus_interfaces(
3454
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3455
class MandosDBusService(DBusObjectWithObjectManager):
2679
3456
"""A D-Bus proxy object"""
3457
2680
3458
def __init__(self):
2681
3459
dbus.service.Object.__init__(self, bus, "/")
3460
2682
3461
_interface = "se.recompile.Mandos"
2683
2684
@dbus_interface_annotations(_interface)
2685
def _foo(self):
2686
return { "org.freedesktop.DBus.Property"
2687
".EmitsChangedSignal":
2688
"false"}
2689
3462
2690
3463
@dbus.service.signal(_interface, signature="o")
2691
3464
def ClientAdded(self, objpath):
2692
3465
"D-Bus signal"
2693
3466
pass
2694
3467
2695
3468
@dbus.service.signal(_interface, signature="ss")
2696
def ClientNotFound(self, fingerprint, address):
3469
def ClientNotFound(self, key_id, address):
2697
3470
"D-Bus signal"
2698
3471
pass
2699
3472
3473
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3474
"true"})
2700
3475
@dbus.service.signal(_interface, signature="os")
2701
3476
def ClientRemoved(self, objpath, name):
2702
3477
"D-Bus signal"
2703
3478
pass
2704
3479
3480
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3481
"true"})
2705
3482
@dbus.service.method(_interface, out_signature="ao")
2706
3483
def GetAllClients(self):
2707
3484
"D-Bus method"
2708
return dbus.Array(c.dbus_object_path
2709
for c in
2710
tcp_server.clients.itervalues())
2711
3485
return dbus.Array(c.dbus_object_path for c in
3486
tcp_server.clients.values())
3487
3488
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3489
"true"})
2712
3490
@dbus.service.method(_interface,
2713
3491
out_signature="a{oa{sv}}")
2714
3492
def GetAllClientsWithProperties(self):
2715
3493
"D-Bus method"
2716
3494
return dbus.Dictionary(
2717
((c.dbus_object_path, c.GetAll(""))
2718
for c in tcp_server.clients.itervalues()),
3495
{c.dbus_object_path: c.GetAll(
3496
"se.recompile.Mandos.Client")
3497
for c in tcp_server.clients.values()},
2719
3498
signature="oa{sv}")
2720
3499
2721
3500
@dbus.service.method(_interface, in_signature="o")
2722
3501
def RemoveClient(self, object_path):
2723
3502
"D-Bus method"
2724
for c in tcp_server.clients.itervalues():
3503
for c in tcp_server.clients.values():
2725
3504
if c.dbus_object_path == object_path:
2726
3505
del tcp_server.clients[c.name]
2727
3506
c.remove_from_connection()
2728
# Don't signal anything except ClientRemoved
3507
# Don't signal the disabling
2729
3508
c.disable(quiet=True)
2730
# Emit D-Bus signal
2731
self.ClientRemoved(object_path, c.name)
3509
# Emit D-Bus signal for removal
3510
self.client_removed_signal(c)
2732
3511
return
2733
3512
raise KeyError(object_path)
2734
3513
2735
3514
del _interface
2736
3515
3516
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3517
out_signature="a{oa{sa{sv}}}")
3518
def GetManagedObjects(self):
3519
"""D-Bus method"""
3520
return dbus.Dictionary(
3521
{client.dbus_object_path:
3522
dbus.Dictionary(
3523
{interface: client.GetAll(interface)
3524
for interface in
3525
client._get_all_interface_names()})
3526
for client in tcp_server.clients.values()})
3527
3528
def client_added_signal(self, client):
3529
"""Send the new standard signal and the old signal"""
3530
if use_dbus:
3531
# New standard signal
3532
self.InterfacesAdded(
3533
client.dbus_object_path,
3534
dbus.Dictionary(
3535
{interface: client.GetAll(interface)
3536
for interface in
3537
client._get_all_interface_names()}))
3538
# Old signal
3539
self.ClientAdded(client.dbus_object_path)
3540
3541
def client_removed_signal(self, client):
3542
"""Send the new standard signal and the old signal"""
3543
if use_dbus:
3544
# New standard signal
3545
self.InterfacesRemoved(
3546
client.dbus_object_path,
3547
client._get_all_interface_names())
3548
# Old signal
3549
self.ClientRemoved(client.dbus_object_path,
3550
client.name)
3551
2737
3552
mandos_dbus_service = MandosDBusService()
2738
3553
3554
# Save modules to variables to exempt the modules from being
3555
# unloaded before the function registered with atexit() is run.
3556
mp = multiprocessing
3557
wn = wnull
3558
2739
3559
def cleanup():
2740
3560
"Cleanup function; run on exit"
2741
service.cleanup()
2742
2743
multiprocessing.active_children()
2744
wnull.close()
3561
if zeroconf:
3562
service.cleanup()
3563
3564
mp.active_children()
3565
wn.close()
2745
3566
if not (tcp_server.clients or client_settings):
2746
3567
return
2747
3568
2748
3569
# Store client before exiting. Secrets are encrypted with key
2749
3570
# based on what config file has. If config file is
2750
3571
# removed/edited, old secret will thus be unrecovable.
2751
3572
clients = {}
2752
3573
with PGPEngine() as pgp:
2753
for client in tcp_server.clients.itervalues():
3574
for client in tcp_server.clients.values():
2754
3575
key = client_settings[client.name]["secret"]
2755
3576
client.encrypted_secret = pgp.encrypt(client.secret,
2756
3577
key)
2757
3578
client_dict = {}
2758
3579
2759
3580
# A list of attributes that can not be pickled
2760
3581
# + secret.
2761
exclude = set(("bus", "changedstate", "secret",
2762
"checker", "server_settings"))
2763
for name, typ in (inspect.getmembers
2764
(dbus.service.Object)):
3582
exclude = {"bus", "changedstate", "secret",
3583
"checker", "server_settings"}
3584
for name, typ in inspect.getmembers(dbus.service
3585
.Object):
2765
3586
exclude.add(name)
2766
3587
2767
3588
client_dict["encrypted_secret"] = (client
2768
3589
.encrypted_secret)
2769
3590
for attr in client.client_structure:
2770
3591
if attr not in exclude:
2771
3592
client_dict[attr] = getattr(client, attr)
2772
3593
2773
3594
clients[client.name] = client_dict
2774
3595
del client_settings[client.name]["secret"]
2775
3596
2776
3597
try:
2777
with (tempfile.NamedTemporaryFile
2778
(mode='wb', suffix=".pickle", prefix='clients-',
2779
dir=os.path.dirname(stored_state_path),
2780
delete=False)) as stored_state:
2781
pickle.dump((clients, client_settings), stored_state)
2782
tempname=stored_state.name
3598
with tempfile.NamedTemporaryFile(
3599
mode="wb",
3600
suffix=".pickle",
3601
prefix="clients-",
3602
dir=os.path.dirname(stored_state_path),
3603
delete=False) as stored_state:
3604
pickle.dump((clients, client_settings), stored_state,
3605
protocol=2)
3606
tempname = stored_state.name
2783
3607
os.rename(tempname, stored_state_path)
2784
3608
except (IOError, OSError) as e:
2785
3609
if not debug:
2788
3612
except NameError:
2789
3613
pass
2790
3614
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2791
logger.warning("Could not save persistent state: {0}"
2792
.format(os.strerror(e.errno)))
3615
log.warning("Could not save persistent state: %s",
3616
os.strerror(e.errno))
2793
3617
else:
2794
logger.warning("Could not save persistent state:",
2795
exc_info=e)
3618
log.warning("Could not save persistent state:",
3619
exc_info=e)
2796
3620
raise
2797
3621
2798
3622
# Delete all clients, and settings from config
2799
3623
while tcp_server.clients:
2800
3624
name, client = tcp_server.clients.popitem()
2801
3625
if use_dbus:
2802
3626
client.remove_from_connection()
2803
# Don't signal anything except ClientRemoved
3627
# Don't signal the disabling
2804
3628
client.disable(quiet=True)
3629
# Emit D-Bus signal for removal
2805
3630
if use_dbus:
2806
# Emit D-Bus signal
2807
mandos_dbus_service.ClientRemoved(client
2808
.dbus_object_path,
2809
client.name)
3631
mandos_dbus_service.client_removed_signal(client)
2810
3632
client_settings.clear()
2811
3633
2812
3634
atexit.register(cleanup)
2813
2814
for client in tcp_server.clients.itervalues():
3635
3636
for client in tcp_server.clients.values():
2815
3637
if use_dbus:
2816
# Emit D-Bus signal
2817
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3638
# Emit D-Bus signal for adding
3639
mandos_dbus_service.client_added_signal(client)
2818
3640
# Need to initiate checking of clients
2819
3641
if client.enabled:
2820
client.init_checker()
2821
3642
client.init_checker(randomize_start=True)
3643
2822
3644
tcp_server.enable()
2823
3645
tcp_server.server_activate()
2824
3646
2825
3647
# Find out what port we got
2826
service.port = tcp_server.socket.getsockname()[1]
3648
if zeroconf:
3649
service.port = tcp_server.socket.getsockname()[1]
2827
3650
if use_ipv6:
2828
logger.info("Now listening on address %r, port %d,"
2829
" flowinfo %d, scope_id %d",
2830
*tcp_server.socket.getsockname())
3651
log.info("Now listening on address %r, port %d, flowinfo %d,"
3652
" scope_id %d", *tcp_server.socket.getsockname())
2831
3653
else: # IPv4
2832
logger.info("Now listening on address %r, port %d",
2833
*tcp_server.socket.getsockname())
2834
2835
#service.interface = tcp_server.socket.getsockname()[3]
2836
3654
log.info("Now listening on address %r, port %d",
3655
*tcp_server.socket.getsockname())
3656
3657
# service.interface = tcp_server.socket.getsockname()[3]
3658
2837
3659
try:
2838
# From the Avahi example code
2839
try:
2840
service.activate()
2841
except dbus.exceptions.DBusException as error:
2842
logger.critical("D-Bus Exception", exc_info=error)
2843
cleanup()
2844
sys.exit(1)
2845
# End of Avahi example code
2846
2847
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2848
lambda *args, **kwargs:
2849
(tcp_server.handle_request
2850
(*args[2:], **kwargs) or True))
2851
2852
logger.debug("Starting main loop")
3660
if zeroconf:
3661
# From the Avahi example code
3662
try:
3663
service.activate()
3664
except dbus.exceptions.DBusException as error:
3665
log.critical("D-Bus Exception", exc_info=error)
3666
cleanup()
3667
sys.exit(1)
3668
# End of Avahi example code
3669
3670
GLib.io_add_watch(
3671
GLib.IOChannel.unix_new(tcp_server.fileno()),
3672
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3673
lambda *args, **kwargs: (tcp_server.handle_request
3674
(*args[2:], **kwargs) or True))
3675
3676
log.debug("Starting main loop")
2853
3677
main_loop.run()
2854
3678
except AvahiError as error:
2855
logger.critical("Avahi Error", exc_info=error)
3679
log.critical("Avahi Error", exc_info=error)
2856
3680
cleanup()
2857
3681
sys.exit(1)
2858
3682
except KeyboardInterrupt:
2859
3683
if debug:
2860
3684
print("", file=sys.stderr)
2861
logger.debug("Server received KeyboardInterrupt")
2862
logger.debug("Server exiting")
3685
log.debug("Server received KeyboardInterrupt")
3686
log.debug("Server exiting")
2863
3687
# Must run before the D-Bus bus name gets deregistered
2864
3688
cleanup()
2865
3689
2866
if __name__ == '__main__':
2867
main()
3690
3691
def parse_test_args():
3692
# type: () -> argparse.Namespace
3693
parser = argparse.ArgumentParser(add_help=False)
3694
parser.add_argument("--check", action="store_true")
3695
parser.add_argument("--prefix", )
3696
args, unknown_args = parser.parse_known_args()
3697
if args.check:
3698
# Remove test options from sys.argv
3699
sys.argv[1:] = unknown_args
3700
return args
3701
3702
# Add all tests from doctest strings
3703
def load_tests(loader, tests, none):
3704
import doctest
3705
tests.addTests(doctest.DocTestSuite())
3706
return tests
3707
3708
if __name__ == "__main__":
3709
options = parse_test_args()
3710
try:
3711
if options.check:
3712
extra_test_prefix = options.prefix
3713
if extra_test_prefix is not None:
3714
if not (unittest.main(argv=[""], exit=False)
3715
.result.wasSuccessful()):
3716
sys.exit(1)
3717
class ExtraTestLoader(unittest.TestLoader):
3718
testMethodPrefix = extra_test_prefix
3719
# Call using ./scriptname --test [--verbose]
3720
unittest.main(argv=[""], testLoader=ExtraTestLoader())
3721
else:
3722
unittest.main(argv=[""])
3723
else:
3724
main()
3725
finally:
3726
logging.shutdown()
3727
3728
# Local Variables:
3729
# run-tests:
3730
# (lambda (&optional extra)
3731
# (if (not (funcall run-tests-in-test-buffer default-directory
3732
# extra))
3733
# (funcall show-test-buffer-in-test-window)
3734
# (funcall remove-test-window)
3735
# (if extra (message "Extra tests run successfully!"))))
3736
# run-tests-in-test-buffer:
3737
# (lambda (dir &optional extra)
3738
# (with-current-buffer (get-buffer-create "*Test*")
3739
# (setq buffer-read-only nil
3740
# default-directory dir)
3741
# (erase-buffer)
3742
# (compilation-mode))
3743
# (let ((process-result
3744
# (let ((inhibit-read-only t))
3745
# (process-file-shell-command
3746
# (funcall get-command-line extra) nil "*Test*"))))
3747
# (and (numberp process-result)
3748
# (= process-result 0))))
3749
# get-command-line:
3750
# (lambda (&optional extra)
3751
# (let ((quoted-script
3752
# (shell-quote-argument (funcall get-script-name))))
3753
# (format
3754
# (concat "%s --check" (if extra " --prefix=atest" ""))
3755
# quoted-script)))
3756
# get-script-name:
3757
# (lambda ()
3758
# (if (fboundp 'file-local-name)
3759
# (file-local-name (buffer-file-name))
3760
# (or (file-remote-p (buffer-file-name) 'localname)
3761
# (buffer-file-name))))
3762
# remove-test-window:
3763
# (lambda ()
3764
# (let ((test-window (get-buffer-window "*Test*")))
3765
# (if test-window (delete-window test-window))))
3766
# show-test-buffer-in-test-window:
3767
# (lambda ()
3768
# (when (not (get-buffer-window-list "*Test*"))
3769
# (setq next-error-last-buffer (get-buffer "*Test*"))
3770
# (let* ((side (if (>= (window-width) 146) 'right 'bottom))
3771
# (display-buffer-overriding-action
3772
# `((display-buffer-in-side-window) (side . ,side)
3773
# (window-height . fit-window-to-buffer)
3774
# (window-width . fit-window-to-buffer))))
3775
# (display-buffer "*Test*"))))
3776
# eval:
3777
# (progn
3778
# (let* ((run-extra-tests (lambda () (interactive)
3779
# (funcall run-tests t)))
3780
# (inner-keymap `(keymap (116 . ,run-extra-tests))) ; t
3781
# (outer-keymap `(keymap (3 . ,inner-keymap)))) ; C-c
3782
# (setq minor-mode-overriding-map-alist
3783
# (cons `(run-tests . ,outer-keymap)
3784
# minor-mode-overriding-map-alist)))
3785
# (add-hook 'after-save-hook run-tests 90 t))
3786
# End:
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0