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- Committer: Björn Påhlsson
- Date: 2011-12-21 00:33:12 UTC
- mfrom: (505.2.13 mandos-client-network-hooks)
- Revision ID: belorn@recompile.se-20111221003312-jwn6d76u2c2lejoz
working new feature: network-hooks - Enables user-scripts to take up
interfaces during bootup
interfaces during bootup
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2020 Teddy Hogeborn
15
# Copyright © 2008-2020 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
66
import binascii
76
67
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
import shlex
83
68
84
69
import dbus
85
70
import dbus.service
86
import gi
87
from gi.repository import GLib
71
import gobject
72
import avahi
88
73
from dbus.mainloop.glib import DBusGMainLoop
89
74
import ctypes
90
75
import ctypes.util
91
76
import xml.dom.minidom
92
77
import inspect
93
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
78
import GnuPGInterface
79
80
try:
122
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
123
82
except AttributeError:
124
83
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
127
84
from IN import SO_BINDTODEVICE
128
85
except ImportError:
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.12"
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
147
89
stored_state_file = "clients.pickle"
148
90
149
91
logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
152
95
153
96
try:
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
156
100
except (OSError, AttributeError):
157
158
101
def if_nametoindex(interface):
159
102
"Get an interface index the hard way, i.e. using fcntl()"
160
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
161
104
with contextlib.closing(socket.socket()) as s:
162
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
165
110
return interface_index
166
111
167
112
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
184
def initlogger(debug, level=logging.WARNING):
113
def initlogger(level=logging.WARNING):
185
114
"""init logger and add loglevel"""
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
115
191
116
syslogger.setFormatter(logging.Formatter
192
117
('Mandos [%(process)d]: %(levelname)s:'
193
118
' %(message)s'))
194
119
logger.addHandler(syslogger)
195
196
if debug:
197
console = logging.StreamHandler()
198
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
199
' [%(process)d]:'
200
' %(levelname)s:'
201
' %(message)s'))
202
logger.addHandler(console)
120
121
console = logging.StreamHandler()
122
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
123
' [%(process)d]:'
124
' %(levelname)s:'
125
' %(message)s'))
126
logger.addHandler(console)
203
127
logger.setLevel(level)
204
128
205
129
208
132
pass
209
133
210
134
211
class PGPEngine:
135
class PGPEngine(object):
212
136
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
214
137
def __init__(self):
138
self.gnupg = GnuPGInterface.GnuPG()
215
139
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ['--batch',
228
'--homedir', self.tempdir,
229
'--force-mdc',
230
'--quiet']
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
140
self.gnupg = GnuPGInterface.GnuPG()
141
self.gnupg.options.meta_interactive = False
142
self.gnupg.options.homedir = self.tempdir
143
self.gnupg.options.extra_args.extend(['--force-mdc',
144
'--quiet'])
145
235
146
def __enter__(self):
236
147
return self
237
238
def __exit__(self, exc_type, exc_value, traceback):
148
149
def __exit__ (self, exc_type, exc_value, traceback):
239
150
self._cleanup()
240
151
return False
241
152
242
153
def __del__(self):
243
154
self._cleanup()
244
155
245
156
def _cleanup(self):
246
157
if self.tempdir is not None:
247
158
# Delete contents of tempdir
248
159
for root, dirs, files in os.walk(self.tempdir,
249
topdown=False):
160
topdown = False):
250
161
for filename in files:
251
162
os.remove(os.path.join(root, filename))
252
163
for dirname in dirs:
254
165
# Remove tempdir
255
166
os.rmdir(self.tempdir)
256
167
self.tempdir = None
257
168
258
169
def password_encode(self, password):
259
170
# Passphrase can not be empty and can not contain newlines or
260
171
# NUL bytes. So we prefix it and hex encode it.
261
encoded = b"mandos" + binascii.hexlify(password)
262
if len(encoded) > 2048:
263
# GnuPG can't handle long passwords, so encode differently
264
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
265
.replace(b"\n", b"\\n")
266
.replace(b"\0", b"\\x00"))
267
return encoded
268
172
return b"mandos" + binascii.hexlify(password)
173
269
174
def encrypt(self, data, password):
270
passphrase = self.password_encode(password)
271
with tempfile.NamedTemporaryFile(
272
dir=self.tempdir) as passfile:
273
passfile.write(passphrase)
274
passfile.flush()
275
proc = subprocess.Popen([self.gpg, '--symmetric',
276
'--passphrase-file',
277
passfile.name]
278
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
283
if proc.returncode != 0:
284
raise PGPError(err)
175
self.gnupg.passphrase = self.password_encode(password)
176
with open(os.devnull) as devnull:
177
try:
178
proc = self.gnupg.run(['--symmetric'],
179
create_fhs=['stdin', 'stdout'],
180
attach_fhs={'stderr': devnull})
181
with contextlib.closing(proc.handles['stdin']) as f:
182
f.write(data)
183
with contextlib.closing(proc.handles['stdout']) as f:
184
ciphertext = f.read()
185
proc.wait()
186
except IOError as e:
187
raise PGPError(e)
188
self.gnupg.passphrase = None
285
189
return ciphertext
286
190
287
191
def decrypt(self, data, password):
288
passphrase = self.password_encode(password)
289
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
291
passfile.write(passphrase)
292
passfile.flush()
293
proc = subprocess.Popen([self.gpg, '--decrypt',
294
'--passphrase-file',
295
passfile.name]
296
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
301
if proc.returncode != 0:
302
raise PGPError(err)
192
self.gnupg.passphrase = self.password_encode(password)
193
with open(os.devnull) as devnull:
194
try:
195
proc = self.gnupg.run(['--decrypt'],
196
create_fhs=['stdin', 'stdout'],
197
attach_fhs={'stderr': devnull})
198
with contextlib.closing(proc.handles['stdin'] ) as f:
199
f.write(data)
200
with contextlib.closing(proc.handles['stdout']) as f:
201
decrypted_plaintext = f.read()
202
proc.wait()
203
except IOError as e:
204
raise PGPError(e)
205
self.gnupg.passphrase = None
303
206
return decrypted_plaintext
304
207
305
208
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
209
332
210
class AvahiError(Exception):
333
211
def __init__(self, value, *args, **kwargs):
334
212
self.value = value
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
213
super(AvahiError, self).__init__(value, *args, **kwargs)
214
def __unicode__(self):
215
return unicode(repr(self.value))
338
216
339
217
class AvahiServiceError(AvahiError):
340
218
pass
341
219
342
343
220
class AvahiGroupError(AvahiError):
344
221
pass
345
222
346
223
347
class AvahiService:
224
class AvahiService(object):
348
225
"""An Avahi (Zeroconf) service.
349
226
350
227
Attributes:
351
228
interface: integer; avahi.IF_UNSPEC or an interface index.
352
229
Used to optionally bind to the specified interface.
353
230
name: string; Example: 'Mandos'
354
231
type: string; Example: '_mandos._tcp'.
355
See <https://www.iana.org/assignments/service-names-port-numbers>
232
See <http://www.dns-sd.org/ServiceTypes.html>
356
233
port: integer; what port to announce
357
234
TXT: list of strings; TXT record for the service
358
235
domain: string; Domain to publish on, default to .local if empty.
364
241
server: D-Bus Server
365
242
bus: dbus.SystemBus()
366
243
"""
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):
244
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
245
servicetype = None, port = None, TXT = None,
246
domain = "", host = "", max_renames = 32768,
247
protocol = avahi.PROTO_UNSPEC, bus = None):
379
248
self.interface = interface
380
249
self.name = name
381
250
self.type = servicetype
390
259
self.server = None
391
260
self.bus = bus
392
261
self.entry_group_state_changed_match = None
393
394
def rename(self, remove=True):
262
def rename(self):
395
263
"""Derived from the Avahi example code"""
396
264
if self.rename_count >= self.max_renames:
397
265
logger.critical("No suitable Zeroconf service name found"
398
266
" after %i retries, exiting.",
399
267
self.rename_count)
400
268
raise AvahiServiceError("Too many renames")
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
269
self.name = unicode(self.server
270
.GetAlternativeServiceName(self.name))
404
271
logger.info("Changing Zeroconf service name to %r ...",
405
272
self.name)
406
if remove:
407
self.remove()
273
self.remove()
408
274
try:
409
275
self.add()
410
276
except dbus.exceptions.DBusException as error:
411
if (error.get_dbus_name()
412
== "org.freedesktop.Avahi.CollisionError"):
413
logger.info("Local Zeroconf service name collision.")
414
return self.rename(remove=False)
415
else:
416
logger.critical("D-Bus Exception", exc_info=error)
417
self.cleanup()
418
os._exit(1)
419
277
logger.critical("DBusException: %s", error)
278
self.cleanup()
279
os._exit(1)
280
self.rename_count += 1
420
281
def remove(self):
421
282
"""Derived from the Avahi example code"""
422
283
if self.entry_group_state_changed_match is not None:
424
285
self.entry_group_state_changed_match = None
425
286
if self.group is not None:
426
287
self.group.Reset()
427
428
288
def add(self):
429
289
"""Derived from the Avahi example code"""
430
290
self.remove()
447
307
dbus.UInt16(self.port),
448
308
avahi.string_array_to_txt_array(self.TXT))
449
309
self.group.Commit()
450
451
310
def entry_group_state_changed(self, state, error):
452
311
"""Derived from the Avahi example code"""
453
312
logger.debug("Avahi entry group state change: %i", state)
454
313
455
314
if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
315
logger.debug("Zeroconf service established.")
457
316
elif state == avahi.ENTRY_GROUP_COLLISION:
459
318
self.rename()
460
319
elif state == avahi.ENTRY_GROUP_FAILURE:
461
320
logger.critical("Avahi: Error in group state changed %s",
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
321
unicode(error))
322
raise AvahiGroupError("State changed: %s"
323
% unicode(error))
465
324
def cleanup(self):
466
325
"""Derived from the Avahi example code"""
467
326
if self.group is not None:
472
331
pass
473
332
self.group = None
474
333
self.remove()
475
476
334
def server_state_changed(self, state, error=None):
477
335
"""Derived from the Avahi example code"""
478
336
logger.debug("Avahi server state change: %i", state)
479
bad_states = {
480
avahi.SERVER_INVALID: "Zeroconf server invalid",
481
avahi.SERVER_REGISTERING: None,
482
avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
avahi.SERVER_FAILURE: "Zeroconf server failure",
484
}
337
bad_states = { avahi.SERVER_INVALID:
338
"Zeroconf server invalid",
339
avahi.SERVER_REGISTERING: None,
340
avahi.SERVER_COLLISION:
341
"Zeroconf server name collision",
342
avahi.SERVER_FAILURE:
343
"Zeroconf server failure" }
485
344
if state in bad_states:
486
345
if bad_states[state] is not None:
487
346
if error is None:
490
349
logger.error(bad_states[state] + ": %r", error)
491
350
self.cleanup()
492
351
elif state == avahi.SERVER_RUNNING:
493
try:
494
self.add()
495
except dbus.exceptions.DBusException as error:
496
if (error.get_dbus_name()
497
== "org.freedesktop.Avahi.CollisionError"):
498
logger.info("Local Zeroconf service name"
499
" collision.")
500
return self.rename(remove=False)
501
else:
502
logger.critical("D-Bus Exception", exc_info=error)
503
self.cleanup()
504
os._exit(1)
352
self.add()
505
353
else:
506
354
if error is None:
507
355
logger.debug("Unknown state: %r", state)
508
356
else:
509
357
logger.debug("Unknown state: %r: %r", state, error)
510
511
358
def activate(self):
512
359
"""Derived from the Avahi example code"""
513
360
if self.server is None:
517
364
follow_name_owner_changes=True),
518
365
avahi.DBUS_INTERFACE_SERVER)
519
366
self.server.connect_to_signal("StateChanged",
520
self.server_state_changed)
367
self.server_state_changed)
521
368
self.server_state_changed(self.server.GetState())
522
369
523
524
370
class AvahiServiceToSyslog(AvahiService):
525
def rename(self, *args, **kwargs):
371
def rename(self):
526
372
"""Add the new name to the syslog messages"""
527
ret = super(AvahiServiceToSyslog, self).rename(*args,
528
**kwargs)
529
syslogger.setFormatter(logging.Formatter(
530
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
531
.format(self.name)))
373
ret = AvahiService.rename(self)
374
syslogger.setFormatter(logging.Formatter
375
('Mandos (%s) [%%(process)d]:'
376
' %%(levelname)s: %%(message)s'
377
% self.name))
532
378
return ret
533
379
534
535
# Pretend that we have a GnuTLS module
536
class gnutls:
537
"""This isn't so much a class as it is a module-like namespace."""
538
539
library = ctypes.util.find_library("gnutls")
540
if library is None:
541
library = ctypes.util.find_library("gnutls-deb0")
542
_library = ctypes.cdll.LoadLibrary(library)
543
del library
544
545
# Unless otherwise indicated, the constants and types below are
546
# all from the gnutls/gnutls.h C header file.
547
548
# Constants
549
E_SUCCESS = 0
550
E_INTERRUPTED = -52
551
E_AGAIN = -28
552
CRT_OPENPGP = 2
553
CRT_RAWPK = 3
554
CLIENT = 2
555
SHUT_RDWR = 0
556
CRD_CERTIFICATE = 1
557
E_NO_CERTIFICATE_FOUND = -49
558
X509_FMT_DER = 0
559
NO_TICKETS = 1<<10
560
ENABLE_RAWPK = 1<<18
561
CTYPE_PEERS = 3
562
KEYID_USE_SHA256 = 1 # gnutls/x509.h
563
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
564
565
# Types
566
class session_int(ctypes.Structure):
567
_fields_ = []
568
session_t = ctypes.POINTER(session_int)
569
570
class certificate_credentials_st(ctypes.Structure):
571
_fields_ = []
572
certificate_credentials_t = ctypes.POINTER(
573
certificate_credentials_st)
574
certificate_type_t = ctypes.c_int
575
576
class datum_t(ctypes.Structure):
577
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
578
('size', ctypes.c_uint)]
579
580
class openpgp_crt_int(ctypes.Structure):
581
_fields_ = []
582
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
583
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
584
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
585
credentials_type_t = ctypes.c_int
586
transport_ptr_t = ctypes.c_void_p
587
close_request_t = ctypes.c_int
588
589
# Exceptions
590
class Error(Exception):
591
def __init__(self, message=None, code=None, args=()):
592
# Default usage is by a message string, but if a return
593
# code is passed, convert it to a string with
594
# gnutls.strerror()
595
self.code = code
596
if message is None and code is not None:
597
message = gnutls.strerror(code)
598
return super(gnutls.Error, self).__init__(
599
message, *args)
600
601
class CertificateSecurityError(Error):
602
pass
603
604
# Classes
605
class Credentials:
606
def __init__(self):
607
self._c_object = gnutls.certificate_credentials_t()
608
gnutls.certificate_allocate_credentials(
609
ctypes.byref(self._c_object))
610
self.type = gnutls.CRD_CERTIFICATE
611
612
def __del__(self):
613
gnutls.certificate_free_credentials(self._c_object)
614
615
class ClientSession:
616
def __init__(self, socket, credentials=None):
617
self._c_object = gnutls.session_t()
618
gnutls_flags = gnutls.CLIENT
619
if gnutls.check_version(b"3.5.6"):
620
gnutls_flags |= gnutls.NO_TICKETS
621
if gnutls.has_rawpk:
622
gnutls_flags |= gnutls.ENABLE_RAWPK
623
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
624
del gnutls_flags
625
gnutls.set_default_priority(self._c_object)
626
gnutls.transport_set_ptr(self._c_object, socket.fileno())
627
gnutls.handshake_set_private_extensions(self._c_object,
628
True)
629
self.socket = socket
630
if credentials is None:
631
credentials = gnutls.Credentials()
632
gnutls.credentials_set(self._c_object, credentials.type,
633
ctypes.cast(credentials._c_object,
634
ctypes.c_void_p))
635
self.credentials = credentials
636
637
def __del__(self):
638
gnutls.deinit(self._c_object)
639
640
def handshake(self):
641
return gnutls.handshake(self._c_object)
642
643
def send(self, data):
644
data = bytes(data)
645
data_len = len(data)
646
while data_len > 0:
647
data_len -= gnutls.record_send(self._c_object,
648
data[-data_len:],
649
data_len)
650
651
def bye(self):
652
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
653
654
# Error handling functions
655
def _error_code(result):
656
"""A function to raise exceptions on errors, suitable
657
for the 'restype' attribute on ctypes functions"""
658
if result >= 0:
659
return result
660
if result == gnutls.E_NO_CERTIFICATE_FOUND:
661
raise gnutls.CertificateSecurityError(code=result)
662
raise gnutls.Error(code=result)
663
664
def _retry_on_error(result, func, arguments):
665
"""A function to retry on some errors, suitable
666
for the 'errcheck' attribute on ctypes functions"""
667
while result < 0:
668
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
669
return _error_code(result)
670
result = func(*arguments)
671
return result
672
673
# Unless otherwise indicated, the function declarations below are
674
# all from the gnutls/gnutls.h C header file.
675
676
# Functions
677
priority_set_direct = _library.gnutls_priority_set_direct
678
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
679
ctypes.POINTER(ctypes.c_char_p)]
680
priority_set_direct.restype = _error_code
681
682
init = _library.gnutls_init
683
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
684
init.restype = _error_code
685
686
set_default_priority = _library.gnutls_set_default_priority
687
set_default_priority.argtypes = [session_t]
688
set_default_priority.restype = _error_code
689
690
record_send = _library.gnutls_record_send
691
record_send.argtypes = [session_t, ctypes.c_void_p,
692
ctypes.c_size_t]
693
record_send.restype = ctypes.c_ssize_t
694
record_send.errcheck = _retry_on_error
695
696
certificate_allocate_credentials = (
697
_library.gnutls_certificate_allocate_credentials)
698
certificate_allocate_credentials.argtypes = [
699
ctypes.POINTER(certificate_credentials_t)]
700
certificate_allocate_credentials.restype = _error_code
701
702
certificate_free_credentials = (
703
_library.gnutls_certificate_free_credentials)
704
certificate_free_credentials.argtypes = [
705
certificate_credentials_t]
706
certificate_free_credentials.restype = None
707
708
handshake_set_private_extensions = (
709
_library.gnutls_handshake_set_private_extensions)
710
handshake_set_private_extensions.argtypes = [session_t,
711
ctypes.c_int]
712
handshake_set_private_extensions.restype = None
713
714
credentials_set = _library.gnutls_credentials_set
715
credentials_set.argtypes = [session_t, credentials_type_t,
716
ctypes.c_void_p]
717
credentials_set.restype = _error_code
718
719
strerror = _library.gnutls_strerror
720
strerror.argtypes = [ctypes.c_int]
721
strerror.restype = ctypes.c_char_p
722
723
certificate_type_get = _library.gnutls_certificate_type_get
724
certificate_type_get.argtypes = [session_t]
725
certificate_type_get.restype = _error_code
726
727
certificate_get_peers = _library.gnutls_certificate_get_peers
728
certificate_get_peers.argtypes = [session_t,
729
ctypes.POINTER(ctypes.c_uint)]
730
certificate_get_peers.restype = ctypes.POINTER(datum_t)
731
732
global_set_log_level = _library.gnutls_global_set_log_level
733
global_set_log_level.argtypes = [ctypes.c_int]
734
global_set_log_level.restype = None
735
736
global_set_log_function = _library.gnutls_global_set_log_function
737
global_set_log_function.argtypes = [log_func]
738
global_set_log_function.restype = None
739
740
deinit = _library.gnutls_deinit
741
deinit.argtypes = [session_t]
742
deinit.restype = None
743
744
handshake = _library.gnutls_handshake
745
handshake.argtypes = [session_t]
746
handshake.restype = _error_code
747
handshake.errcheck = _retry_on_error
748
749
transport_set_ptr = _library.gnutls_transport_set_ptr
750
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
751
transport_set_ptr.restype = None
752
753
bye = _library.gnutls_bye
754
bye.argtypes = [session_t, close_request_t]
755
bye.restype = _error_code
756
bye.errcheck = _retry_on_error
757
758
check_version = _library.gnutls_check_version
759
check_version.argtypes = [ctypes.c_char_p]
760
check_version.restype = ctypes.c_char_p
761
762
_need_version = b"3.3.0"
763
if check_version(_need_version) is None:
764
raise self.Error("Needs GnuTLS {} or later"
765
.format(_need_version))
766
767
_tls_rawpk_version = b"3.6.6"
768
has_rawpk = bool(check_version(_tls_rawpk_version))
769
770
if has_rawpk:
771
# Types
772
class pubkey_st(ctypes.Structure):
773
_fields = []
774
pubkey_t = ctypes.POINTER(pubkey_st)
775
776
x509_crt_fmt_t = ctypes.c_int
777
778
# All the function declarations below are from
779
# gnutls/abstract.h
780
pubkey_init = _library.gnutls_pubkey_init
781
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
782
pubkey_init.restype = _error_code
783
784
pubkey_import = _library.gnutls_pubkey_import
785
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
786
x509_crt_fmt_t]
787
pubkey_import.restype = _error_code
788
789
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
790
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
791
ctypes.POINTER(ctypes.c_ubyte),
792
ctypes.POINTER(ctypes.c_size_t)]
793
pubkey_get_key_id.restype = _error_code
794
795
pubkey_deinit = _library.gnutls_pubkey_deinit
796
pubkey_deinit.argtypes = [pubkey_t]
797
pubkey_deinit.restype = None
798
else:
799
# All the function declarations below are from
800
# gnutls/openpgp.h
801
802
openpgp_crt_init = _library.gnutls_openpgp_crt_init
803
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
804
openpgp_crt_init.restype = _error_code
805
806
openpgp_crt_import = _library.gnutls_openpgp_crt_import
807
openpgp_crt_import.argtypes = [openpgp_crt_t,
808
ctypes.POINTER(datum_t),
809
openpgp_crt_fmt_t]
810
openpgp_crt_import.restype = _error_code
811
812
openpgp_crt_verify_self = \
813
_library.gnutls_openpgp_crt_verify_self
814
openpgp_crt_verify_self.argtypes = [
815
openpgp_crt_t,
816
ctypes.c_uint,
817
ctypes.POINTER(ctypes.c_uint),
818
]
819
openpgp_crt_verify_self.restype = _error_code
820
821
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
822
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
823
openpgp_crt_deinit.restype = None
824
825
openpgp_crt_get_fingerprint = (
826
_library.gnutls_openpgp_crt_get_fingerprint)
827
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
828
ctypes.c_void_p,
829
ctypes.POINTER(
830
ctypes.c_size_t)]
831
openpgp_crt_get_fingerprint.restype = _error_code
832
833
if check_version(b"3.6.4"):
834
certificate_type_get2 = _library.gnutls_certificate_type_get2
835
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
836
certificate_type_get2.restype = _error_code
837
838
# Remove non-public functions
839
del _error_code, _retry_on_error
840
841
842
def call_pipe(connection, # : multiprocessing.Connection
843
func, *args, **kwargs):
844
"""This function is meant to be called by multiprocessing.Process
845
846
This function runs func(*args, **kwargs), and writes the resulting
847
return value on the provided multiprocessing.Connection.
848
"""
849
connection.send(func(*args, **kwargs))
850
connection.close()
851
852
853
class Client:
380
def timedelta_to_milliseconds(td):
381
"Convert a datetime.timedelta() to milliseconds"
382
return ((td.days * 24 * 60 * 60 * 1000)
383
+ (td.seconds * 1000)
384
+ (td.microseconds // 1000))
385
386
class Client(object):
854
387
"""A representation of a client host served by this server.
855
388
856
389
Attributes:
857
390
approved: bool(); 'None' if not yet approved/disapproved
858
391
approval_delay: datetime.timedelta(); Time to wait for approval
859
392
approval_duration: datetime.timedelta(); Duration of one approval
860
checker: multiprocessing.Process(); a running checker process used
861
to see if the client lives. 'None' if no process is
862
running.
863
checker_callback_tag: a GLib event source tag, or None
393
checker: subprocess.Popen(); a running checker process used
394
to see if the client lives.
395
'None' if no process is running.
396
checker_callback_tag: a gobject event source tag, or None
864
397
checker_command: string; External command which is run to check
865
398
if client lives. %() expansions are done at
866
399
runtime with vars(self) as dict, so that for
867
400
instance %(name)s can be used in the command.
868
checker_initiator_tag: a GLib event source tag, or None
401
checker_initiator_tag: a gobject event source tag, or None
869
402
created: datetime.datetime(); (UTC) object creation
870
403
client_structure: Object describing what attributes a client has
871
404
and is used for storing the client at exit
872
405
current_checker_command: string; current running checker_command
873
disable_initiator_tag: a GLib event source tag, or None
406
disable_initiator_tag: a gobject event source tag, or None
874
407
enabled: bool()
875
408
fingerprint: string (40 or 32 hexadecimal digits); used to
876
uniquely identify an OpenPGP client
877
key_id: string (64 hexadecimal digits); used to uniquely identify
878
a client using raw public keys
409
uniquely identify the client
879
410
host: string; available for use by the checker command
880
411
interval: datetime.timedelta(); How often to start a new checker
881
412
last_approval_request: datetime.datetime(); (UTC) or None
882
413
last_checked_ok: datetime.datetime(); (UTC) or None
883
414
last_checker_status: integer between 0 and 255 reflecting exit
884
415
status of last checker. -1 reflects crashed
885
checker, -2 means no checker completed yet.
886
last_checker_signal: The signal which killed the last checker, if
887
last_checker_status is -1
416
checker, or None.
888
417
last_enabled: datetime.datetime(); (UTC) or None
889
418
name: string; from the config file, used in log messages and
890
419
D-Bus identifiers
891
420
secret: bytestring; sent verbatim (over TLS) to client
892
421
timeout: datetime.timedelta(); How long from last_checked_ok
893
422
until this client is disabled
894
extended_timeout: extra long timeout when secret has been sent
423
extended_timeout: extra long timeout when password has been sent
895
424
runtime_expansions: Allowed attributes for runtime expansion.
896
425
expires: datetime.datetime(); time (UTC) when a client will be
897
426
disabled, or None
898
server_settings: The server_settings dict from main()
899
427
"""
900
428
901
429
runtime_expansions = ("approval_delay", "approval_duration",
902
"created", "enabled", "expires", "key_id",
903
"fingerprint", "host", "interval",
904
"last_approval_request", "last_checked_ok",
430
"created", "enabled", "fingerprint",
431
"host", "interval", "last_checked_ok",
905
432
"last_enabled", "name", "timeout")
906
client_defaults = {
907
"timeout": "PT5M",
908
"extended_timeout": "PT15M",
909
"interval": "PT2M",
910
"checker": "fping -q -- %%(host)s",
911
"host": "",
912
"approval_delay": "PT0S",
913
"approval_duration": "PT1S",
914
"approved_by_default": "True",
915
"enabled": "True",
916
}
433
client_defaults = { "timeout": "5m",
434
"extended_timeout": "15m",
435
"interval": "2m",
436
"checker": "fping -q -- %%(host)s",
437
"host": "",
438
"approval_delay": "0s",
439
"approval_duration": "1s",
440
"approved_by_default": "True",
441
"enabled": "True",
442
}
443
444
def timeout_milliseconds(self):
445
"Return the 'timeout' attribute in milliseconds"
446
return timedelta_to_milliseconds(self.timeout)
447
448
def extended_timeout_milliseconds(self):
449
"Return the 'extended_timeout' attribute in milliseconds"
450
return timedelta_to_milliseconds(self.extended_timeout)
451
452
def interval_milliseconds(self):
453
"Return the 'interval' attribute in milliseconds"
454
return timedelta_to_milliseconds(self.interval)
455
456
def approval_delay_milliseconds(self):
457
return timedelta_to_milliseconds(self.approval_delay)
917
458
918
459
@staticmethod
919
460
def config_parser(config):
920
"""Construct a new dict of client settings of this form:
461
""" Construct a new dict of client settings of this form:
921
462
{ client_name: {setting_name: value, ...}, ...}
922
with exceptions for any special settings as defined above.
923
NOTE: Must be a pure function. Must return the same result
924
value given the same arguments.
925
"""
463
with exceptions for any special settings as defined above"""
926
464
settings = {}
927
465
for client_name in config.sections():
928
466
section = dict(config.items(client_name))
929
467
client = settings[client_name] = {}
930
468
931
469
client["host"] = section["host"]
932
470
# Reformat values from string types to Python types
933
471
client["approved_by_default"] = config.getboolean(
934
472
client_name, "approved_by_default")
935
client["enabled"] = config.getboolean(client_name,
936
"enabled")
937
938
# Uppercase and remove spaces from key_id and fingerprint
939
# for later comparison purposes with return value from the
940
# key_id() and fingerprint() functions
941
client["key_id"] = (section.get("key_id", "").upper()
942
.replace(" ", ""))
473
client["enabled"] = config.getboolean(client_name, "enabled")
474
943
475
client["fingerprint"] = (section["fingerprint"].upper()
944
476
.replace(" ", ""))
945
477
if "secret" in section:
946
client["secret"] = codecs.decode(section["secret"]
947
.encode("utf-8"),
948
"base64")
478
client["secret"] = section["secret"].decode("base64")
949
479
elif "secfile" in section:
950
480
with open(os.path.expanduser(os.path.expandvars
951
481
(section["secfile"])),
952
482
"rb") as secfile:
953
483
client["secret"] = secfile.read()
954
484
else:
955
raise TypeError("No secret or secfile for section {}"
956
.format(section))
485
raise TypeError("No secret or secfile for section %s"
486
% section)
957
487
client["timeout"] = string_to_delta(section["timeout"])
958
488
client["extended_timeout"] = string_to_delta(
959
489
section["extended_timeout"])
965
495
client["checker_command"] = section["checker"]
966
496
client["last_approval_request"] = None
967
497
client["last_checked_ok"] = None
968
client["last_checker_status"] = -2
498
client["last_checker_status"] = None
499
if client["enabled"]:
500
client["last_enabled"] = datetime.datetime.utcnow()
501
client["expires"] = (datetime.datetime.utcnow()
502
+ client["timeout"])
503
else:
504
client["last_enabled"] = None
505
client["expires"] = None
969
506
970
507
return settings
971
972
def __init__(self, settings, name=None, server_settings=None):
508
509
510
def __init__(self, settings, name = None):
511
"""Note: the 'checker' key in 'config' sets the
512
'checker_command' attribute and *not* the 'checker'
513
attribute."""
973
514
self.name = name
974
if server_settings is None:
975
server_settings = {}
976
self.server_settings = server_settings
977
515
# adding all client settings
978
for setting, value in settings.items():
516
for setting, value in settings.iteritems():
979
517
setattr(self, setting, value)
980
981
if self.enabled:
982
if not hasattr(self, "last_enabled"):
983
self.last_enabled = datetime.datetime.utcnow()
984
if not hasattr(self, "expires"):
985
self.expires = (datetime.datetime.utcnow()
986
+ self.timeout)
987
else:
988
self.last_enabled = None
989
self.expires = None
990
518
991
519
logger.debug("Creating client %r", self.name)
992
logger.debug(" Key ID: %s", self.key_id)
520
# Uppercase and remove spaces from fingerprint for later
521
# comparison purposes with return value from the fingerprint()
522
# function
993
523
logger.debug(" Fingerprint: %s", self.fingerprint)
994
self.created = settings.get("created",
995
datetime.datetime.utcnow())
524
self.created = settings.get("created", datetime.datetime.utcnow())
996
525
997
526
# attributes specific for this server instance
998
527
self.checker = None
1002
531
self.current_checker_command = None
1003
532
self.approved = None
1004
533
self.approvals_pending = 0
1005
self.changedstate = multiprocessing_manager.Condition(
1006
multiprocessing_manager.Lock())
1007
self.client_structure = [attr
1008
for attr in self.__dict__.keys()
534
self.changedstate = (multiprocessing_manager
535
.Condition(multiprocessing_manager
536
.Lock()))
537
self.client_structure = [attr for attr in
538
self.__dict__.iterkeys()
1009
539
if not attr.startswith("_")]
1010
540
self.client_structure.append("client_structure")
1011
1012
for name, t in inspect.getmembers(
1013
type(self), lambda obj: isinstance(obj, property)):
541
542
for name, t in inspect.getmembers(type(self),
543
lambda obj:
544
isinstance(obj,
545
property)):
1014
546
if not name.startswith("_"):
1015
547
self.client_structure.append(name)
1016
548
1017
549
# Send notice to process children that client state has changed
1018
550
def send_changedstate(self):
1019
551
with self.changedstate:
1020
552
self.changedstate.notify_all()
1021
553
1022
554
def enable(self):
1023
555
"""Start this client's checker and timeout hooks"""
1024
556
if getattr(self, "enabled", False):
1025
557
# Already enabled
1026
558
return
559
self.send_changedstate()
1027
560
self.expires = datetime.datetime.utcnow() + self.timeout
1028
561
self.enabled = True
1029
562
self.last_enabled = datetime.datetime.utcnow()
1030
563
self.init_checker()
1031
self.send_changedstate()
1032
564
1033
565
def disable(self, quiet=True):
1034
566
"""Disable this client."""
1035
567
if not getattr(self, "enabled", False):
1036
568
return False
1037
569
if not quiet:
570
self.send_changedstate()
571
if not quiet:
1038
572
logger.info("Disabling client %s", self.name)
1039
if getattr(self, "disable_initiator_tag", None) is not None:
1040
GLib.source_remove(self.disable_initiator_tag)
573
if getattr(self, "disable_initiator_tag", False):
574
gobject.source_remove(self.disable_initiator_tag)
1041
575
self.disable_initiator_tag = None
1042
576
self.expires = None
1043
if getattr(self, "checker_initiator_tag", None) is not None:
1044
GLib.source_remove(self.checker_initiator_tag)
577
if getattr(self, "checker_initiator_tag", False):
578
gobject.source_remove(self.checker_initiator_tag)
1045
579
self.checker_initiator_tag = None
1046
580
self.stop_checker()
1047
581
self.enabled = False
1048
if not quiet:
1049
self.send_changedstate()
1050
# Do not run this again if called by a GLib.timeout_add
582
# Do not run this again if called by a gobject.timeout_add
1051
583
return False
1052
584
1053
585
def __del__(self):
1054
586
self.disable()
1055
587
1056
588
def init_checker(self):
1057
589
# Schedule a new checker to be started an 'interval' from now,
1058
590
# and every interval from then on.
1059
if self.checker_initiator_tag is not None:
1060
GLib.source_remove(self.checker_initiator_tag)
1061
self.checker_initiator_tag = GLib.timeout_add(
1062
random.randrange(int(self.interval.total_seconds() * 1000
1063
+ 1)),
1064
self.start_checker)
591
self.checker_initiator_tag = (gobject.timeout_add
592
(self.interval_milliseconds(),
593
self.start_checker))
1065
594
# Schedule a disable() when 'timeout' has passed
1066
if self.disable_initiator_tag is not None:
1067
GLib.source_remove(self.disable_initiator_tag)
1068
self.disable_initiator_tag = GLib.timeout_add(
1069
int(self.timeout.total_seconds() * 1000), self.disable)
595
self.disable_initiator_tag = (gobject.timeout_add
596
(self.timeout_milliseconds(),
597
self.disable))
1070
598
# Also start a new checker *right now*.
1071
599
self.start_checker()
1072
1073
def checker_callback(self, source, condition, connection,
1074
command):
600
601
def checker_callback(self, pid, condition, command):
1075
602
"""The checker has completed, so take appropriate actions."""
1076
# Read return code from connection (see call_pipe)
1077
returncode = connection.recv()
1078
connection.close()
1079
if self.checker is not None:
1080
self.checker.join()
1081
603
self.checker_callback_tag = None
1082
604
self.checker = None
1083
1084
if returncode >= 0:
1085
self.last_checker_status = returncode
1086
self.last_checker_signal = None
605
if os.WIFEXITED(condition):
606
self.last_checker_status = os.WEXITSTATUS(condition)
1087
607
if self.last_checker_status == 0:
1088
608
logger.info("Checker for %(name)s succeeded",
1089
609
vars(self))
1090
610
self.checked_ok()
1091
611
else:
1092
logger.info("Checker for %(name)s failed", vars(self))
612
logger.info("Checker for %(name)s failed",
613
vars(self))
1093
614
else:
1094
615
self.last_checker_status = -1
1095
self.last_checker_signal = -returncode
1096
616
logger.warning("Checker for %(name)s crashed?",
1097
617
vars(self))
1098
return False
1099
1100
def checked_ok(self):
1101
"""Assert that the client has been seen, alive and well."""
1102
self.last_checked_ok = datetime.datetime.utcnow()
1103
self.last_checker_status = 0
1104
self.last_checker_signal = None
1105
self.bump_timeout()
1106
1107
def bump_timeout(self, timeout=None):
1108
"""Bump up the timeout for this client."""
618
619
def checked_ok(self, timeout=None):
620
"""Bump up the timeout for this client.
621
622
This should only be called when the client has been seen,
623
alive and well.
624
"""
1109
625
if timeout is None:
1110
626
timeout = self.timeout
627
self.last_checked_ok = datetime.datetime.utcnow()
1111
628
if self.disable_initiator_tag is not None:
1112
GLib.source_remove(self.disable_initiator_tag)
1113
self.disable_initiator_tag = None
629
gobject.source_remove(self.disable_initiator_tag)
1114
630
if getattr(self, "enabled", False):
1115
self.disable_initiator_tag = GLib.timeout_add(
1116
int(timeout.total_seconds() * 1000), self.disable)
631
self.disable_initiator_tag = (gobject.timeout_add
632
(timedelta_to_milliseconds
633
(timeout), self.disable))
1117
634
self.expires = datetime.datetime.utcnow() + timeout
1118
635
1119
636
def need_approval(self):
1120
637
self.last_approval_request = datetime.datetime.utcnow()
1121
638
1122
639
def start_checker(self):
1123
640
"""Start a new checker subprocess if one is not running.
1124
641
1125
642
If a checker already exists, leave it running and do
1126
643
nothing."""
1127
644
# The reason for not killing a running checker is that if we
1128
# did that, and if a checker (for some reason) started running
1129
# slowly and taking more than 'interval' time, then the client
1130
# would inevitably timeout, since no checker would get a
1131
# chance to run to completion. If we instead leave running
645
# did that, then if a checker (for some reason) started
646
# running slowly and taking more than 'interval' time, the
647
# client would inevitably timeout, since no checker would get
648
# a chance to run to completion. If we instead leave running
1132
649
# checkers alone, the checker would have to take more time
1133
650
# than 'timeout' for the client to be disabled, which is as it
1134
651
# should be.
1135
1136
if self.checker is not None and not self.checker.is_alive():
1137
logger.warning("Checker was not alive; joining")
1138
self.checker.join()
1139
self.checker = None
652
653
# If a checker exists, make sure it is not a zombie
654
try:
655
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
656
except (AttributeError, OSError) as error:
657
if (isinstance(error, OSError)
658
and error.errno != errno.ECHILD):
659
raise error
660
else:
661
if pid:
662
logger.warning("Checker was a zombie")
663
gobject.source_remove(self.checker_callback_tag)
664
self.checker_callback(pid, status,
665
self.current_checker_command)
1140
666
# Start a new checker if needed
1141
667
if self.checker is None:
1142
# Escape attributes for the shell
1143
escaped_attrs = {
1144
attr: shlex.quote(str(getattr(self, attr)))
1145
for attr in self.runtime_expansions}
1146
668
try:
1147
command = self.checker_command % escaped_attrs
1148
except TypeError as error:
1149
logger.error('Could not format string "%s"',
1150
self.checker_command,
1151
exc_info=error)
1152
return True # Try again later
669
# In case checker_command has exactly one % operator
670
command = self.checker_command % self.host
671
except TypeError:
672
# Escape attributes for the shell
673
escaped_attrs = dict(
674
(attr,
675
re.escape(unicode(str(getattr(self, attr, "")),
676
errors=
677
'replace')))
678
for attr in
679
self.runtime_expansions)
680
681
try:
682
command = self.checker_command % escaped_attrs
683
except TypeError as error:
684
logger.error('Could not format string "%s":'
685
' %s', self.checker_command, error)
686
return True # Try again later
1153
687
self.current_checker_command = command
1154
logger.info("Starting checker %r for %s", command,
1155
self.name)
1156
# We don't need to redirect stdout and stderr, since
1157
# in normal mode, that is already done by daemon(),
1158
# and in debug mode we don't want to. (Stdin is
1159
# always replaced by /dev/null.)
1160
# The exception is when not debugging but nevertheless
1161
# running in the foreground; use the previously
1162
# created wnull.
1163
popen_args = {"close_fds": True,
1164
"shell": True,
1165
"cwd": "/"}
1166
if (not self.server_settings["debug"]
1167
and self.server_settings["foreground"]):
1168
popen_args.update({"stdout": wnull,
1169
"stderr": wnull})
1170
pipe = multiprocessing.Pipe(duplex=False)
1171
self.checker = multiprocessing.Process(
1172
target=call_pipe,
1173
args=(pipe[1], subprocess.call, command),
1174
kwargs=popen_args)
1175
self.checker.start()
1176
self.checker_callback_tag = GLib.io_add_watch(
1177
GLib.IOChannel.unix_new(pipe[0].fileno()),
1178
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1179
self.checker_callback, pipe[0], command)
1180
# Re-run this periodically if run by GLib.timeout_add
688
try:
689
logger.info("Starting checker %r for %s",
690
command, self.name)
691
# We don't need to redirect stdout and stderr, since
692
# in normal mode, that is already done by daemon(),
693
# and in debug mode we don't want to. (Stdin is
694
# always replaced by /dev/null.)
695
self.checker = subprocess.Popen(command,
696
close_fds=True,
697
shell=True, cwd="/")
698
self.checker_callback_tag = (gobject.child_watch_add
699
(self.checker.pid,
700
self.checker_callback,
701
data=command))
702
# The checker may have completed before the gobject
703
# watch was added. Check for this.
704
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
705
if pid:
706
gobject.source_remove(self.checker_callback_tag)
707
self.checker_callback(pid, status, command)
708
except OSError as error:
709
logger.error("Failed to start subprocess: %s",
710
error)
711
# Re-run this periodically if run by gobject.timeout_add
1181
712
return True
1182
713
1183
714
def stop_checker(self):
1184
715
"""Force the checker process, if any, to stop."""
1185
716
if self.checker_callback_tag:
1186
GLib.source_remove(self.checker_callback_tag)
717
gobject.source_remove(self.checker_callback_tag)
1187
718
self.checker_callback_tag = None
1188
719
if getattr(self, "checker", None) is None:
1189
720
return
1190
721
logger.debug("Stopping checker for %(name)s", vars(self))
1191
self.checker.terminate()
722
try:
723
os.kill(self.checker.pid, signal.SIGTERM)
724
#time.sleep(0.5)
725
#if self.checker.poll() is None:
726
# os.kill(self.checker.pid, signal.SIGKILL)
727
except OSError as error:
728
if error.errno != errno.ESRCH: # No such process
729
raise
1192
730
self.checker = None
1193
731
1194
732
1195
def dbus_service_property(dbus_interface,
1196
signature="v",
1197
access="readwrite",
1198
byte_arrays=False):
733
def dbus_service_property(dbus_interface, signature="v",
734
access="readwrite", byte_arrays=False):
1199
735
"""Decorators for marking methods of a DBusObjectWithProperties to
1200
736
become properties on the D-Bus.
1201
737
1202
738
The decorated method will be called with no arguments by "Get"
1203
739
and with one argument by "Set".
1204
740
1205
741
The parameters, where they are supported, are the same as
1206
742
dbus.service.method, except there is only "signature", since the
1207
743
type from Get() and the type sent to Set() is the same.
1210
746
# "Set" method, so we fail early here:
1211
747
if byte_arrays and signature != "ay":
1212
748
raise ValueError("Byte arrays not supported for non-'ay'"
1213
" signature {!r}".format(signature))
1214
749
" signature %r" % signature)
1215
750
def decorator(func):
1216
751
func._dbus_is_property = True
1217
752
func._dbus_interface = dbus_interface
1220
755
func._dbus_name = func.__name__
1221
756
if func._dbus_name.endswith("_dbus_property"):
1222
757
func._dbus_name = func._dbus_name[:-14]
1223
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1224
return func
1225
1226
return decorator
1227
1228
1229
def dbus_interface_annotations(dbus_interface):
1230
"""Decorator for marking functions returning interface annotations
1231
1232
Usage:
1233
1234
@dbus_interface_annotations("org.example.Interface")
1235
def _foo(self): # Function name does not matter
1236
return {"org.freedesktop.DBus.Deprecated": "true",
1237
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1238
"false"}
1239
"""
1240
1241
def decorator(func):
1242
func._dbus_is_interface = True
1243
func._dbus_interface = dbus_interface
1244
func._dbus_name = dbus_interface
1245
return func
1246
1247
return decorator
1248
1249
1250
def dbus_annotations(annotations):
1251
"""Decorator to annotate D-Bus methods, signals or properties
1252
Usage:
1253
1254
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1255
"org.freedesktop.DBus.Property."
1256
"EmitsChangedSignal": "false"})
1257
@dbus_service_property("org.example.Interface", signature="b",
1258
access="r")
1259
def Property_dbus_property(self):
1260
return dbus.Boolean(False)
1261
1262
See also the DBusObjectWithAnnotations class.
1263
"""
1264
1265
def decorator(func):
1266
func._dbus_annotations = annotations
1267
return func
1268
758
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
759
return func
1269
760
return decorator
1270
761
1271
762
1272
763
class DBusPropertyException(dbus.exceptions.DBusException):
1273
764
"""A base class for D-Bus property-related exceptions
1274
765
"""
1275
pass
766
def __unicode__(self):
767
return unicode(str(self))
1276
768
1277
769
1278
770
class DBusPropertyAccessException(DBusPropertyException):
1287
779
pass
1288
780
1289
781
1290
class DBusObjectWithAnnotations(dbus.service.Object):
1291
"""A D-Bus object with annotations.
1292
1293
Classes inheriting from this can use the dbus_annotations
1294
decorator to add annotations to methods or signals.
1295
"""
1296
1297
@staticmethod
1298
def _is_dbus_thing(thing):
1299
"""Returns a function testing if an attribute is a D-Bus thing
1300
1301
If called like _is_dbus_thing("method") it returns a function
1302
suitable for use as predicate to inspect.getmembers().
1303
"""
1304
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1305
False)
1306
1307
def _get_all_dbus_things(self, thing):
1308
"""Returns a generator of (name, attribute) pairs
1309
"""
1310
return ((getattr(athing.__get__(self), "_dbus_name", name),
1311
athing.__get__(self))
1312
for cls in self.__class__.__mro__
1313
for name, athing in
1314
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1315
1316
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1317
out_signature="s",
1318
path_keyword='object_path',
1319
connection_keyword='connection')
1320
def Introspect(self, object_path, connection):
1321
"""Overloading of standard D-Bus method.
1322
1323
Inserts annotation tags on methods and signals.
1324
"""
1325
xmlstring = dbus.service.Object.Introspect(self, object_path,
1326
connection)
1327
try:
1328
document = xml.dom.minidom.parseString(xmlstring)
1329
1330
for if_tag in document.getElementsByTagName("interface"):
1331
# Add annotation tags
1332
for typ in ("method", "signal"):
1333
for tag in if_tag.getElementsByTagName(typ):
1334
annots = dict()
1335
for name, prop in (self.
1336
_get_all_dbus_things(typ)):
1337
if (name == tag.getAttribute("name")
1338
and prop._dbus_interface
1339
== if_tag.getAttribute("name")):
1340
annots.update(getattr(
1341
prop, "_dbus_annotations", {}))
1342
for name, value in annots.items():
1343
ann_tag = document.createElement(
1344
"annotation")
1345
ann_tag.setAttribute("name", name)
1346
ann_tag.setAttribute("value", value)
1347
tag.appendChild(ann_tag)
1348
# Add interface annotation tags
1349
for annotation, value in dict(
1350
itertools.chain.from_iterable(
1351
annotations().items()
1352
for name, annotations
1353
in self._get_all_dbus_things("interface")
1354
if name == if_tag.getAttribute("name")
1355
)).items():
1356
ann_tag = document.createElement("annotation")
1357
ann_tag.setAttribute("name", annotation)
1358
ann_tag.setAttribute("value", value)
1359
if_tag.appendChild(ann_tag)
1360
# Fix argument name for the Introspect method itself
1361
if (if_tag.getAttribute("name")
1362
== dbus.INTROSPECTABLE_IFACE):
1363
for cn in if_tag.getElementsByTagName("method"):
1364
if cn.getAttribute("name") == "Introspect":
1365
for arg in cn.getElementsByTagName("arg"):
1366
if (arg.getAttribute("direction")
1367
== "out"):
1368
arg.setAttribute("name",
1369
"xml_data")
1370
xmlstring = document.toxml("utf-8")
1371
document.unlink()
1372
except (AttributeError, xml.dom.DOMException,
1373
xml.parsers.expat.ExpatError) as error:
1374
logger.error("Failed to override Introspection method",
1375
exc_info=error)
1376
return xmlstring
1377
1378
1379
class DBusObjectWithProperties(DBusObjectWithAnnotations):
782
class DBusObjectWithProperties(dbus.service.Object):
1380
783
"""A D-Bus object with properties.
1381
784
1382
785
Classes inheriting from this can use the dbus_service_property
1383
786
decorator to expose methods as D-Bus properties. It exposes the
1384
787
standard Get(), Set(), and GetAll() methods on the D-Bus.
1385
788
"""
1386
789
790
@staticmethod
791
def _is_dbus_property(obj):
792
return getattr(obj, "_dbus_is_property", False)
793
794
def _get_all_dbus_properties(self):
795
"""Returns a generator of (name, attribute) pairs
796
"""
797
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
798
for cls in self.__class__.__mro__
799
for name, prop in
800
inspect.getmembers(cls, self._is_dbus_property))
801
1387
802
def _get_dbus_property(self, interface_name, property_name):
1388
803
"""Returns a bound method if one exists which is a D-Bus
1389
804
property with the specified name and interface.
1390
805
"""
1391
for cls in self.__class__.__mro__:
1392
for name, value in inspect.getmembers(
1393
cls, self._is_dbus_thing("property")):
806
for cls in self.__class__.__mro__:
807
for name, value in (inspect.getmembers
808
(cls, self._is_dbus_property)):
1394
809
if (value._dbus_name == property_name
1395
810
and value._dbus_interface == interface_name):
1396
811
return value.__get__(self)
1397
812
1398
813
# No such property
1399
raise DBusPropertyNotFound("{}:{}.{}".format(
1400
self.dbus_object_path, interface_name, property_name))
1401
1402
@classmethod
1403
def _get_all_interface_names(cls):
1404
"""Get a sequence of all interfaces supported by an object"""
1405
return (name for name in set(getattr(getattr(x, attr),
1406
"_dbus_interface", None)
1407
for x in (inspect.getmro(cls))
1408
for attr in dir(x))
1409
if name is not None)
1410
1411
@dbus.service.method(dbus.PROPERTIES_IFACE,
1412
in_signature="ss",
814
raise DBusPropertyNotFound(self.dbus_object_path + ":"
815
+ interface_name + "."
816
+ property_name)
817
818
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1413
819
out_signature="v")
1414
820
def Get(self, interface_name, property_name):
1415
821
"""Standard D-Bus property Get() method, see D-Bus standard.
1421
827
if not hasattr(value, "variant_level"):
1422
828
return value
1423
829
return type(value)(value, variant_level=value.variant_level+1)
1424
830
1425
831
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1426
832
def Set(self, interface_name, property_name, value):
1427
833
"""Standard D-Bus property Set() method, see D-Bus standard.
1433
839
# The byte_arrays option is not supported yet on
1434
840
# signatures other than "ay".
1435
841
if prop._dbus_signature != "ay":
1436
raise ValueError("Byte arrays not supported for non-"
1437
"'ay' signature {!r}"
1438
.format(prop._dbus_signature))
1439
value = dbus.ByteArray(bytes(value))
842
raise ValueError
843
value = dbus.ByteArray(''.join(unichr(byte)
844
for byte in value))
1440
845
prop(value)
1441
1442
@dbus.service.method(dbus.PROPERTIES_IFACE,
1443
in_signature="s",
846
847
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1444
848
out_signature="a{sv}")
1445
849
def GetAll(self, interface_name):
1446
850
"""Standard D-Bus property GetAll() method, see D-Bus
1447
851
standard.
1448
852
1449
853
Note: Will not include properties with access="write".
1450
854
"""
1451
855
properties = {}
1452
for name, prop in self._get_all_dbus_things("property"):
856
for name, prop in self._get_all_dbus_properties():
1453
857
if (interface_name
1454
858
and interface_name != prop._dbus_interface):
1455
859
# Interface non-empty but did not match
1461
865
if not hasattr(value, "variant_level"):
1462
866
properties[name] = value
1463
867
continue
1464
properties[name] = type(value)(
1465
value, variant_level=value.variant_level + 1)
868
properties[name] = type(value)(value, variant_level=
869
value.variant_level+1)
1466
870
return dbus.Dictionary(properties, signature="sv")
1467
1468
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1469
def PropertiesChanged(self, interface_name, changed_properties,
1470
invalidated_properties):
1471
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1472
standard.
1473
"""
1474
pass
1475
871
1476
872
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1477
873
out_signature="s",
1478
874
path_keyword='object_path',
1479
875
connection_keyword='connection')
1480
876
def Introspect(self, object_path, connection):
1481
"""Overloading of standard D-Bus method.
1482
1483
Inserts property tags and interface annotation tags.
877
"""Standard D-Bus method, overloaded to insert property tags.
1484
878
"""
1485
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1486
object_path,
1487
connection)
879
xmlstring = dbus.service.Object.Introspect(self, object_path,
880
connection)
1488
881
try:
1489
882
document = xml.dom.minidom.parseString(xmlstring)
1490
1491
883
def make_tag(document, name, prop):
1492
884
e = document.createElement("property")
1493
885
e.setAttribute("name", name)
1494
886
e.setAttribute("type", prop._dbus_signature)
1495
887
e.setAttribute("access", prop._dbus_access)
1496
888
return e
1497
1498
889
for if_tag in document.getElementsByTagName("interface"):
1499
# Add property tags
1500
890
for tag in (make_tag(document, name, prop)
1501
891
for name, prop
1502
in self._get_all_dbus_things("property")
892
in self._get_all_dbus_properties()
1503
893
if prop._dbus_interface
1504
894
== if_tag.getAttribute("name")):
1505
895
if_tag.appendChild(tag)
1506
# Add annotation tags for properties
1507
for tag in if_tag.getElementsByTagName("property"):
1508
annots = dict()
1509
for name, prop in self._get_all_dbus_things(
1510
"property"):
1511
if (name == tag.getAttribute("name")
1512
and prop._dbus_interface
1513
== if_tag.getAttribute("name")):
1514
annots.update(getattr(
1515
prop, "_dbus_annotations", {}))
1516
for name, value in annots.items():
1517
ann_tag = document.createElement(
1518
"annotation")
1519
ann_tag.setAttribute("name", name)
1520
ann_tag.setAttribute("value", value)
1521
tag.appendChild(ann_tag)
1522
896
# Add the names to the return values for the
1523
897
# "org.freedesktop.DBus.Properties" methods
1524
898
if (if_tag.getAttribute("name")
1539
913
except (AttributeError, xml.dom.DOMException,
1540
914
xml.parsers.expat.ExpatError) as error:
1541
915
logger.error("Failed to override Introspection method",
1542
exc_info=error)
1543
return xmlstring
1544
1545
1546
try:
1547
dbus.OBJECT_MANAGER_IFACE
1548
except AttributeError:
1549
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1550
1551
1552
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1553
"""A D-Bus object with an ObjectManager.
1554
1555
Classes inheriting from this exposes the standard
1556
GetManagedObjects call and the InterfacesAdded and
1557
InterfacesRemoved signals on the standard
1558
"org.freedesktop.DBus.ObjectManager" interface.
1559
1560
Note: No signals are sent automatically; they must be sent
1561
manually.
1562
"""
1563
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1564
out_signature="a{oa{sa{sv}}}")
1565
def GetManagedObjects(self):
1566
"""This function must be overridden"""
1567
raise NotImplementedError()
1568
1569
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1570
signature="oa{sa{sv}}")
1571
def InterfacesAdded(self, object_path, interfaces_and_properties):
1572
pass
1573
1574
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1575
def InterfacesRemoved(self, object_path, interfaces):
1576
pass
1577
1578
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1579
out_signature="s",
1580
path_keyword='object_path',
1581
connection_keyword='connection')
1582
def Introspect(self, object_path, connection):
1583
"""Overloading of standard D-Bus method.
1584
1585
Override return argument name of GetManagedObjects to be
1586
"objpath_interfaces_and_properties"
1587
"""
1588
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1589
object_path,
1590
connection)
1591
try:
1592
document = xml.dom.minidom.parseString(xmlstring)
1593
1594
for if_tag in document.getElementsByTagName("interface"):
1595
# Fix argument name for the GetManagedObjects method
1596
if (if_tag.getAttribute("name")
1597
== dbus.OBJECT_MANAGER_IFACE):
1598
for cn in if_tag.getElementsByTagName("method"):
1599
if (cn.getAttribute("name")
1600
== "GetManagedObjects"):
1601
for arg in cn.getElementsByTagName("arg"):
1602
if (arg.getAttribute("direction")
1603
== "out"):
1604
arg.setAttribute(
1605
"name",
1606
"objpath_interfaces"
1607
"_and_properties")
1608
xmlstring = document.toxml("utf-8")
1609
document.unlink()
1610
except (AttributeError, xml.dom.DOMException,
1611
xml.parsers.expat.ExpatError) as error:
1612
logger.error("Failed to override Introspection method",
1613
exc_info=error)
1614
return xmlstring
1615
1616
1617
def datetime_to_dbus(dt, variant_level=0):
916
error)
917
return xmlstring
918
919
920
def datetime_to_dbus (dt, variant_level=0):
1618
921
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1619
922
if dt is None:
1620
return dbus.String("", variant_level=variant_level)
1621
return dbus.String(dt.isoformat(), variant_level=variant_level)
1622
1623
1624
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1625
"""A class decorator; applied to a subclass of
1626
dbus.service.Object, it will add alternate D-Bus attributes with
1627
interface names according to the "alt_interface_names" mapping.
1628
Usage:
1629
1630
@alternate_dbus_interfaces({"org.example.Interface":
1631
"net.example.AlternateInterface"})
1632
class SampleDBusObject(dbus.service.Object):
1633
@dbus.service.method("org.example.Interface")
1634
def SampleDBusMethod():
1635
pass
1636
1637
The above "SampleDBusMethod" on "SampleDBusObject" will be
1638
reachable via two interfaces: "org.example.Interface" and
1639
"net.example.AlternateInterface", the latter of which will have
1640
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1641
"true", unless "deprecate" is passed with a False value.
1642
1643
This works for methods and signals, and also for D-Bus properties
1644
(from DBusObjectWithProperties) and interfaces (from the
1645
dbus_interface_annotations decorator).
923
return dbus.String("", variant_level = variant_level)
924
return dbus.String(dt.isoformat(),
925
variant_level=variant_level)
926
927
928
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
929
.__metaclass__):
930
"""Applied to an empty subclass of a D-Bus object, this metaclass
931
will add additional D-Bus attributes matching a certain pattern.
1646
932
"""
1647
1648
def wrapper(cls):
1649
for orig_interface_name, alt_interface_name in (
1650
alt_interface_names.items()):
1651
attr = {}
1652
interface_names = set()
1653
# Go though all attributes of the class
1654
for attrname, attribute in inspect.getmembers(cls):
933
def __new__(mcs, name, bases, attr):
934
# Go through all the base classes which could have D-Bus
935
# methods, signals, or properties in them
936
for base in (b for b in bases
937
if issubclass(b, dbus.service.Object)):
938
# Go though all attributes of the base class
939
for attrname, attribute in inspect.getmembers(base):
1655
940
# Ignore non-D-Bus attributes, and D-Bus attributes
1656
941
# with the wrong interface name
1657
942
if (not hasattr(attribute, "_dbus_interface")
1658
or not attribute._dbus_interface.startswith(
1659
orig_interface_name)):
943
or not attribute._dbus_interface
944
.startswith("se.recompile.Mandos")):
1660
945
continue
1661
946
# Create an alternate D-Bus interface name based on
1662
947
# the current name
1663
alt_interface = attribute._dbus_interface.replace(
1664
orig_interface_name, alt_interface_name)
1665
interface_names.add(alt_interface)
948
alt_interface = (attribute._dbus_interface
949
.replace("se.recompile.Mandos",
950
"se.bsnet.fukt.Mandos"))
1666
951
# Is this a D-Bus signal?
1667
952
if getattr(attribute, "_dbus_is_signal", False):
1668
# Extract the original non-method undecorated
1669
# function by black magic
1670
if sys.version_info.major == 2:
1671
nonmethod_func = (dict(
953
# Extract the original non-method function by
954
# black magic
955
nonmethod_func = (dict(
1672
956
zip(attribute.func_code.co_freevars,
1673
attribute.__closure__))
1674
["func"].cell_contents)
1675
else:
1676
nonmethod_func = (dict(
1677
zip(attribute.__code__.co_freevars,
1678
attribute.__closure__))
1679
["func"].cell_contents)
957
attribute.__closure__))["func"]
958
.cell_contents)
1680
959
# Create a new, but exactly alike, function
1681
960
# object, and decorate it to be a new D-Bus signal
1682
961
# with the alternate D-Bus interface name
1683
new_function = copy_function(nonmethod_func)
1684
new_function = (dbus.service.signal(
1685
alt_interface,
1686
attribute._dbus_signature)(new_function))
1687
# Copy annotations, if any
1688
try:
1689
new_function._dbus_annotations = dict(
1690
attribute._dbus_annotations)
1691
except AttributeError:
1692
pass
1693
962
new_function = (dbus.service.signal
963
(alt_interface,
964
attribute._dbus_signature)
965
(types.FunctionType(
966
nonmethod_func.func_code,
967
nonmethod_func.func_globals,
968
nonmethod_func.func_name,
969
nonmethod_func.func_defaults,
970
nonmethod_func.func_closure)))
1694
971
# Define a creator of a function to call both the
1695
# original and alternate functions, so both the
1696
# original and alternate signals gets sent when
1697
# the function is called
972
# old and new functions, so both the old and new
973
# signals gets sent when the function is called
1698
974
def fixscope(func1, func2):
1699
975
"""This function is a scope container to pass
1700
976
func1 and func2 to the "call_both" function
1701
977
outside of its arguments"""
1702
1703
@functools.wraps(func2)
1704
978
def call_both(*args, **kwargs):
1705
979
"""This function will emit two D-Bus
1706
980
signals by calling func1 and func2"""
1707
981
func1(*args, **kwargs)
1708
982
func2(*args, **kwargs)
1709
# Make wrapper function look like a D-Bus
1710
# signal
1711
for name, attr in inspect.getmembers(func2):
1712
if name.startswith("_dbus_"):
1713
setattr(call_both, name, attr)
1714
1715
983
return call_both
1716
984
# Create the "call_both" function and add it to
1717
985
# the class
1718
attr[attrname] = fixscope(attribute, new_function)
986
attr[attrname] = fixscope(attribute,
987
new_function)
1719
988
# Is this a D-Bus method?
1720
989
elif getattr(attribute, "_dbus_is_method", False):
1721
990
# Create a new, but exactly alike, function
1722
991
# object. Decorate it to be a new D-Bus method
1723
992
# with the alternate D-Bus interface name. Add it
1724
993
# to the class.
1725
attr[attrname] = (
1726
dbus.service.method(
1727
alt_interface,
1728
attribute._dbus_in_signature,
1729
attribute._dbus_out_signature)
1730
(copy_function(attribute)))
1731
# Copy annotations, if any
1732
try:
1733
attr[attrname]._dbus_annotations = dict(
1734
attribute._dbus_annotations)
1735
except AttributeError:
1736
pass
994
attr[attrname] = (dbus.service.method
995
(alt_interface,
996
attribute._dbus_in_signature,
997
attribute._dbus_out_signature)
998
(types.FunctionType
999
(attribute.func_code,
1000
attribute.func_globals,
1001
attribute.func_name,
1002
attribute.func_defaults,
1003
attribute.func_closure)))
1737
1004
# Is this a D-Bus property?
1738
1005
elif getattr(attribute, "_dbus_is_property", False):
1739
1006
# Create a new, but exactly alike, function
1740
1007
# object, and decorate it to be a new D-Bus
1741
1008
# property with the alternate D-Bus interface
1742
1009
# name. Add it to the class.
1743
attr[attrname] = (dbus_service_property(
1744
alt_interface, attribute._dbus_signature,
1745
attribute._dbus_access,
1746
attribute._dbus_get_args_options
1747
["byte_arrays"])
1748
(copy_function(attribute)))
1749
# Copy annotations, if any
1750
try:
1751
attr[attrname]._dbus_annotations = dict(
1752
attribute._dbus_annotations)
1753
except AttributeError:
1754
pass
1755
# Is this a D-Bus interface?
1756
elif getattr(attribute, "_dbus_is_interface", False):
1757
# Create a new, but exactly alike, function
1758
# object. Decorate it to be a new D-Bus interface
1759
# with the alternate D-Bus interface name. Add it
1760
# to the class.
1761
attr[attrname] = (
1762
dbus_interface_annotations(alt_interface)
1763
(copy_function(attribute)))
1764
if deprecate:
1765
# Deprecate all alternate interfaces
1766
iname = "_AlternateDBusNames_interface_annotation{}"
1767
for interface_name in interface_names:
1768
1769
@dbus_interface_annotations(interface_name)
1770
def func(self):
1771
return {"org.freedesktop.DBus.Deprecated":
1772
"true"}
1773
# Find an unused name
1774
for aname in (iname.format(i)
1775
for i in itertools.count()):
1776
if aname not in attr:
1777
attr[aname] = func
1778
break
1779
if interface_names:
1780
# Replace the class with a new subclass of it with
1781
# methods, signals, etc. as created above.
1782
if sys.version_info.major == 2:
1783
cls = type(b"{}Alternate".format(cls.__name__),
1784
(cls, ), attr)
1785
else:
1786
cls = type("{}Alternate".format(cls.__name__),
1787
(cls, ), attr)
1788
return cls
1789
1790
return wrapper
1791
1792
1793
@alternate_dbus_interfaces({"se.recompile.Mandos":
1794
"se.bsnet.fukt.Mandos"})
1010
attr[attrname] = (dbus_service_property
1011
(alt_interface,
1012
attribute._dbus_signature,
1013
attribute._dbus_access,
1014
attribute
1015
._dbus_get_args_options
1016
["byte_arrays"])
1017
(types.FunctionType
1018
(attribute.func_code,
1019
attribute.func_globals,
1020
attribute.func_name,
1021
attribute.func_defaults,
1022
attribute.func_closure)))
1023
return type.__new__(mcs, name, bases, attr)
1024
1025
1795
1026
class ClientDBus(Client, DBusObjectWithProperties):
1796
1027
"""A Client class using D-Bus
1797
1028
1798
1029
Attributes:
1799
1030
dbus_object_path: dbus.ObjectPath
1800
1031
bus: dbus.SystemBus()
1801
1032
"""
1802
1033
1803
1034
runtime_expansions = (Client.runtime_expansions
1804
+ ("dbus_object_path", ))
1805
1806
_interface = "se.recompile.Mandos.Client"
1807
1035
+ ("dbus_object_path",))
1036
1808
1037
# dbus.service.Object doesn't use super(), so we can't either.
1809
1810
def __init__(self, bus=None, *args, **kwargs):
1038
1039
def __init__(self, bus = None, *args, **kwargs):
1811
1040
self.bus = bus
1812
1041
Client.__init__(self, *args, **kwargs)
1042
self._approvals_pending = 0
1043
1044
self._approvals_pending = 0
1813
1045
# Only now, when this client is initialized, can it show up on
1814
1046
# the D-Bus
1815
client_object_name = str(self.name).translate(
1047
client_object_name = unicode(self.name).translate(
1816
1048
{ord("."): ord("_"),
1817
1049
ord("-"): ord("_")})
1818
self.dbus_object_path = dbus.ObjectPath(
1819
"/clients/" + client_object_name)
1050
self.dbus_object_path = (dbus.ObjectPath
1051
("/clients/" + client_object_name))
1820
1052
DBusObjectWithProperties.__init__(self, self.bus,
1821
1053
self.dbus_object_path)
1822
1823
def notifychangeproperty(transform_func, dbus_name,
1824
type_func=lambda x: x,
1825
variant_level=1,
1826
invalidate_only=False,
1827
_interface=_interface):
1054
1055
def notifychangeproperty(transform_func,
1056
dbus_name, type_func=lambda x: x,
1057
variant_level=1):
1828
1058
""" Modify a variable so that it's a property which announces
1829
1059
its changes to DBus.
1830
1060
1831
1061
transform_fun: Function that takes a value and a variant_level
1832
1062
and transforms it to a D-Bus type.
1833
1063
dbus_name: D-Bus name of the variable
1835
1065
to the D-Bus. Default: no transform
1836
1066
variant_level: D-Bus variant level. Default: 1
1837
1067
"""
1838
attrname = "_{}".format(dbus_name)
1839
1068
attrname = "_{0}".format(dbus_name)
1840
1069
def setter(self, value):
1841
1070
if hasattr(self, "dbus_object_path"):
1842
1071
if (not hasattr(self, attrname) or
1843
1072
type_func(getattr(self, attrname, None))
1844
1073
!= type_func(value)):
1845
if invalidate_only:
1846
self.PropertiesChanged(
1847
_interface, dbus.Dictionary(),
1848
dbus.Array((dbus_name, )))
1849
else:
1850
dbus_value = transform_func(
1851
type_func(value),
1852
variant_level=variant_level)
1853
self.PropertyChanged(dbus.String(dbus_name),
1854
dbus_value)
1855
self.PropertiesChanged(
1856
_interface,
1857
dbus.Dictionary({dbus.String(dbus_name):
1858
dbus_value}),
1859
dbus.Array())
1074
dbus_value = transform_func(type_func(value),
1075
variant_level
1076
=variant_level)
1077
self.PropertyChanged(dbus.String(dbus_name),
1078
dbus_value)
1860
1079
setattr(self, attrname, value)
1861
1080
1862
1081
return property(lambda self: getattr(self, attrname), setter)
1863
1082
1083
1864
1084
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1865
1085
approvals_pending = notifychangeproperty(dbus.Boolean,
1866
1086
"ApprovalPending",
1867
type_func=bool)
1087
type_func = bool)
1868
1088
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1869
1089
last_enabled = notifychangeproperty(datetime_to_dbus,
1870
1090
"LastEnabled")
1871
checker = notifychangeproperty(
1872
dbus.Boolean, "CheckerRunning",
1873
type_func=lambda checker: checker is not None)
1091
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1092
type_func = lambda checker:
1093
checker is not None)
1874
1094
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1875
1095
"LastCheckedOK")
1876
last_checker_status = notifychangeproperty(dbus.Int16,
1877
"LastCheckerStatus")
1878
1096
last_approval_request = notifychangeproperty(
1879
1097
datetime_to_dbus, "LastApprovalRequest")
1880
1098
approved_by_default = notifychangeproperty(dbus.Boolean,
1881
1099
"ApprovedByDefault")
1882
approval_delay = notifychangeproperty(
1883
dbus.UInt64, "ApprovalDelay",
1884
type_func=lambda td: td.total_seconds() * 1000)
1100
approval_delay = notifychangeproperty(dbus.UInt64,
1101
"ApprovalDelay",
1102
type_func =
1103
timedelta_to_milliseconds)
1885
1104
approval_duration = notifychangeproperty(
1886
1105
dbus.UInt64, "ApprovalDuration",
1887
type_func=lambda td: td.total_seconds() * 1000)
1106
type_func = timedelta_to_milliseconds)
1888
1107
host = notifychangeproperty(dbus.String, "Host")
1889
timeout = notifychangeproperty(
1890
dbus.UInt64, "Timeout",
1891
type_func=lambda td: td.total_seconds() * 1000)
1108
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1109
type_func =
1110
timedelta_to_milliseconds)
1892
1111
extended_timeout = notifychangeproperty(
1893
1112
dbus.UInt64, "ExtendedTimeout",
1894
type_func=lambda td: td.total_seconds() * 1000)
1895
interval = notifychangeproperty(
1896
dbus.UInt64, "Interval",
1897
type_func=lambda td: td.total_seconds() * 1000)
1113
type_func = timedelta_to_milliseconds)
1114
interval = notifychangeproperty(dbus.UInt64,
1115
"Interval",
1116
type_func =
1117
timedelta_to_milliseconds)
1898
1118
checker_command = notifychangeproperty(dbus.String, "Checker")
1899
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1900
invalidate_only=True)
1901
1119
1902
1120
del notifychangeproperty
1903
1121
1904
1122
def __del__(self, *args, **kwargs):
1905
1123
try:
1906
1124
self.remove_from_connection()
1909
1127
if hasattr(DBusObjectWithProperties, "__del__"):
1910
1128
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1911
1129
Client.__del__(self, *args, **kwargs)
1912
1913
def checker_callback(self, source, condition,
1914
connection, command, *args, **kwargs):
1915
ret = Client.checker_callback(self, source, condition,
1916
connection, command, *args,
1917
**kwargs)
1918
exitstatus = self.last_checker_status
1919
if exitstatus >= 0:
1130
1131
def checker_callback(self, pid, condition, command,
1132
*args, **kwargs):
1133
self.checker_callback_tag = None
1134
self.checker = None
1135
if os.WIFEXITED(condition):
1136
exitstatus = os.WEXITSTATUS(condition)
1920
1137
# Emit D-Bus signal
1921
1138
self.CheckerCompleted(dbus.Int16(exitstatus),
1922
# This is specific to GNU libC
1923
dbus.Int64(exitstatus << 8),
1139
dbus.Int64(condition),
1924
1140
dbus.String(command))
1925
1141
else:
1926
1142
# Emit D-Bus signal
1927
1143
self.CheckerCompleted(dbus.Int16(-1),
1928
dbus.Int64(
1929
# This is specific to GNU libC
1930
(exitstatus << 8)
1931
| self.last_checker_signal),
1144
dbus.Int64(condition),
1932
1145
dbus.String(command))
1933
return ret
1934
1146
1147
return Client.checker_callback(self, pid, condition, command,
1148
*args, **kwargs)
1149
1935
1150
def start_checker(self, *args, **kwargs):
1936
old_checker_pid = getattr(self.checker, "pid", None)
1151
old_checker = self.checker
1152
if self.checker is not None:
1153
old_checker_pid = self.checker.pid
1154
else:
1155
old_checker_pid = None
1937
1156
r = Client.start_checker(self, *args, **kwargs)
1938
1157
# Only if new checker process was started
1939
1158
if (self.checker is not None
1941
1160
# Emit D-Bus signal
1942
1161
self.CheckerStarted(self.current_checker_command)
1943
1162
return r
1944
1163
1945
1164
def _reset_approved(self):
1946
1165
self.approved = None
1947
1166
return False
1948
1167
1949
1168
def approve(self, value=True):
1169
self.send_changedstate()
1950
1170
self.approved = value
1951
GLib.timeout_add(int(self.approval_duration.total_seconds()
1952
* 1000), self._reset_approved)
1953
self.send_changedstate()
1954
1955
# D-Bus methods, signals & properties
1956
1957
# Interfaces
1958
1959
# Signals
1960
1171
gobject.timeout_add(timedelta_to_milliseconds
1172
(self.approval_duration),
1173
self._reset_approved)
1174
1175
1176
## D-Bus methods, signals & properties
1177
_interface = "se.recompile.Mandos.Client"
1178
1179
## Signals
1180
1961
1181
# CheckerCompleted - signal
1962
1182
@dbus.service.signal(_interface, signature="nxs")
1963
1183
def CheckerCompleted(self, exitcode, waitstatus, command):
1964
1184
"D-Bus signal"
1965
1185
pass
1966
1186
1967
1187
# CheckerStarted - signal
1968
1188
@dbus.service.signal(_interface, signature="s")
1969
1189
def CheckerStarted(self, command):
1970
1190
"D-Bus signal"
1971
1191
pass
1972
1192
1973
1193
# PropertyChanged - signal
1974
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1975
1194
@dbus.service.signal(_interface, signature="sv")
1976
1195
def PropertyChanged(self, property, value):
1977
1196
"D-Bus signal"
1978
1197
pass
1979
1198
1980
1199
# GotSecret - signal
1981
1200
@dbus.service.signal(_interface)
1982
1201
def GotSecret(self):
1985
1204
server to mandos-client
1986
1205
"""
1987
1206
pass
1988
1207
1989
1208
# Rejected - signal
1990
1209
@dbus.service.signal(_interface, signature="s")
1991
1210
def Rejected(self, reason):
1992
1211
"D-Bus signal"
1993
1212
pass
1994
1213
1995
1214
# NeedApproval - signal
1996
1215
@dbus.service.signal(_interface, signature="tb")
1997
1216
def NeedApproval(self, timeout, default):
1998
1217
"D-Bus signal"
1999
1218
return self.need_approval()
2000
2001
# Methods
2002
1219
1220
# NeRwequest - signal
1221
@dbus.service.signal(_interface, signature="s")
1222
def NewRequest(self, ip):
1223
"""D-Bus signal
1224
Is sent after a client request a password.
1225
"""
1226
pass
1227
1228
## Methods
1229
2003
1230
# Approve - method
2004
1231
@dbus.service.method(_interface, in_signature="b")
2005
1232
def Approve(self, value):
2006
1233
self.approve(value)
2007
1234
2008
1235
# CheckedOK - method
2009
1236
@dbus.service.method(_interface)
2010
1237
def CheckedOK(self):
2011
1238
self.checked_ok()
2012
1239
2013
1240
# Enable - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2015
1241
@dbus.service.method(_interface)
2016
1242
def Enable(self):
2017
1243
"D-Bus method"
2018
1244
self.enable()
2019
1245
2020
1246
# StartChecker - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2022
1247
@dbus.service.method(_interface)
2023
1248
def StartChecker(self):
2024
1249
"D-Bus method"
2025
1250
self.start_checker()
2026
1251
2027
1252
# Disable - method
2028
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2029
1253
@dbus.service.method(_interface)
2030
1254
def Disable(self):
2031
1255
"D-Bus method"
2032
1256
self.disable()
2033
1257
2034
1258
# StopChecker - method
2035
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2036
1259
@dbus.service.method(_interface)
2037
1260
def StopChecker(self):
2038
1261
self.stop_checker()
2039
2040
# Properties
2041
1262
1263
## Properties
1264
2042
1265
# ApprovalPending - property
2043
1266
@dbus_service_property(_interface, signature="b", access="read")
2044
1267
def ApprovalPending_dbus_property(self):
2045
1268
return dbus.Boolean(bool(self.approvals_pending))
2046
1269
2047
1270
# ApprovedByDefault - property
2048
@dbus_service_property(_interface,
2049
signature="b",
1271
@dbus_service_property(_interface, signature="b",
2050
1272
access="readwrite")
2051
1273
def ApprovedByDefault_dbus_property(self, value=None):
2052
1274
if value is None: # get
2053
1275
return dbus.Boolean(self.approved_by_default)
2054
1276
self.approved_by_default = bool(value)
2055
1277
2056
1278
# ApprovalDelay - property
2057
@dbus_service_property(_interface,
2058
signature="t",
1279
@dbus_service_property(_interface, signature="t",
2059
1280
access="readwrite")
2060
1281
def ApprovalDelay_dbus_property(self, value=None):
2061
1282
if value is None: # get
2062
return dbus.UInt64(self.approval_delay.total_seconds()
2063
* 1000)
1283
return dbus.UInt64(self.approval_delay_milliseconds())
2064
1284
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2065
1285
2066
1286
# ApprovalDuration - property
2067
@dbus_service_property(_interface,
2068
signature="t",
1287
@dbus_service_property(_interface, signature="t",
2069
1288
access="readwrite")
2070
1289
def ApprovalDuration_dbus_property(self, value=None):
2071
1290
if value is None: # get
2072
return dbus.UInt64(self.approval_duration.total_seconds()
2073
* 1000)
1291
return dbus.UInt64(timedelta_to_milliseconds(
1292
self.approval_duration))
2074
1293
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2075
1294
2076
1295
# Name - property
2077
@dbus_annotations(
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2079
1296
@dbus_service_property(_interface, signature="s", access="read")
2080
1297
def Name_dbus_property(self):
2081
1298
return dbus.String(self.name)
2082
2083
# KeyID - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2086
@dbus_service_property(_interface, signature="s", access="read")
2087
def KeyID_dbus_property(self):
2088
return dbus.String(self.key_id)
2089
1299
2090
1300
# Fingerprint - property
2091
@dbus_annotations(
2092
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2093
1301
@dbus_service_property(_interface, signature="s", access="read")
2094
1302
def Fingerprint_dbus_property(self):
2095
1303
return dbus.String(self.fingerprint)
2096
1304
2097
1305
# Host - property
2098
@dbus_service_property(_interface,
2099
signature="s",
1306
@dbus_service_property(_interface, signature="s",
2100
1307
access="readwrite")
2101
1308
def Host_dbus_property(self, value=None):
2102
1309
if value is None: # get
2103
1310
return dbus.String(self.host)
2104
self.host = str(value)
2105
1311
self.host = unicode(value)
1312
2106
1313
# Created - property
2107
@dbus_annotations(
2108
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2109
1314
@dbus_service_property(_interface, signature="s", access="read")
2110
1315
def Created_dbus_property(self):
2111
1316
return datetime_to_dbus(self.created)
2112
1317
2113
1318
# LastEnabled - property
2114
1319
@dbus_service_property(_interface, signature="s", access="read")
2115
1320
def LastEnabled_dbus_property(self):
2116
1321
return datetime_to_dbus(self.last_enabled)
2117
1322
2118
1323
# Enabled - property
2119
@dbus_service_property(_interface,
2120
signature="b",
1324
@dbus_service_property(_interface, signature="b",
2121
1325
access="readwrite")
2122
1326
def Enabled_dbus_property(self, value=None):
2123
1327
if value is None: # get
2126
1330
self.enable()
2127
1331
else:
2128
1332
self.disable()
2129
1333
2130
1334
# LastCheckedOK - property
2131
@dbus_service_property(_interface,
2132
signature="s",
1335
@dbus_service_property(_interface, signature="s",
2133
1336
access="readwrite")
2134
1337
def LastCheckedOK_dbus_property(self, value=None):
2135
1338
if value is not None:
2136
1339
self.checked_ok()
2137
1340
return
2138
1341
return datetime_to_dbus(self.last_checked_ok)
2139
2140
# LastCheckerStatus - property
2141
@dbus_service_property(_interface, signature="n", access="read")
2142
def LastCheckerStatus_dbus_property(self):
2143
return dbus.Int16(self.last_checker_status)
2144
1342
2145
1343
# Expires - property
2146
1344
@dbus_service_property(_interface, signature="s", access="read")
2147
1345
def Expires_dbus_property(self):
2148
1346
return datetime_to_dbus(self.expires)
2149
1347
2150
1348
# LastApprovalRequest - property
2151
1349
@dbus_service_property(_interface, signature="s", access="read")
2152
1350
def LastApprovalRequest_dbus_property(self):
2153
1351
return datetime_to_dbus(self.last_approval_request)
2154
1352
2155
1353
# Timeout - property
2156
@dbus_service_property(_interface,
2157
signature="t",
1354
@dbus_service_property(_interface, signature="t",
2158
1355
access="readwrite")
2159
1356
def Timeout_dbus_property(self, value=None):
2160
1357
if value is None: # get
2161
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2162
old_timeout = self.timeout
1358
return dbus.UInt64(self.timeout_milliseconds())
2163
1359
self.timeout = datetime.timedelta(0, 0, 0, value)
2164
# Reschedule disabling
2165
if self.enabled:
2166
now = datetime.datetime.utcnow()
2167
self.expires += self.timeout - old_timeout
2168
if self.expires <= now:
2169
# The timeout has passed
2170
self.disable()
2171
else:
2172
if (getattr(self, "disable_initiator_tag", None)
2173
is None):
2174
return
2175
GLib.source_remove(self.disable_initiator_tag)
2176
self.disable_initiator_tag = GLib.timeout_add(
2177
int((self.expires - now).total_seconds() * 1000),
2178
self.disable)
2179
1360
if getattr(self, "disable_initiator_tag", None) is None:
1361
return
1362
# Reschedule timeout
1363
gobject.source_remove(self.disable_initiator_tag)
1364
self.disable_initiator_tag = None
1365
self.expires = None
1366
time_to_die = timedelta_to_milliseconds((self
1367
.last_checked_ok
1368
+ self.timeout)
1369
- datetime.datetime
1370
.utcnow())
1371
if time_to_die <= 0:
1372
# The timeout has passed
1373
self.disable()
1374
else:
1375
self.expires = (datetime.datetime.utcnow()
1376
+ datetime.timedelta(milliseconds =
1377
time_to_die))
1378
self.disable_initiator_tag = (gobject.timeout_add
1379
(time_to_die, self.disable))
1380
2180
1381
# ExtendedTimeout - property
2181
@dbus_service_property(_interface,
2182
signature="t",
1382
@dbus_service_property(_interface, signature="t",
2183
1383
access="readwrite")
2184
1384
def ExtendedTimeout_dbus_property(self, value=None):
2185
1385
if value is None: # get
2186
return dbus.UInt64(self.extended_timeout.total_seconds()
2187
* 1000)
1386
return dbus.UInt64(self.extended_timeout_milliseconds())
2188
1387
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2189
1388
2190
1389
# Interval - property
2191
@dbus_service_property(_interface,
2192
signature="t",
1390
@dbus_service_property(_interface, signature="t",
2193
1391
access="readwrite")
2194
1392
def Interval_dbus_property(self, value=None):
2195
1393
if value is None: # get
2196
return dbus.UInt64(self.interval.total_seconds() * 1000)
1394
return dbus.UInt64(self.interval_milliseconds())
2197
1395
self.interval = datetime.timedelta(0, 0, 0, value)
2198
1396
if getattr(self, "checker_initiator_tag", None) is None:
2199
1397
return
2200
1398
if self.enabled:
2201
1399
# Reschedule checker run
2202
GLib.source_remove(self.checker_initiator_tag)
2203
self.checker_initiator_tag = GLib.timeout_add(
2204
value, self.start_checker)
2205
self.start_checker() # Start one now, too
2206
1400
gobject.source_remove(self.checker_initiator_tag)
1401
self.checker_initiator_tag = (gobject.timeout_add
1402
(value, self.start_checker))
1403
self.start_checker() # Start one now, too
1404
2207
1405
# Checker - property
2208
@dbus_service_property(_interface,
2209
signature="s",
1406
@dbus_service_property(_interface, signature="s",
2210
1407
access="readwrite")
2211
1408
def Checker_dbus_property(self, value=None):
2212
1409
if value is None: # get
2213
1410
return dbus.String(self.checker_command)
2214
self.checker_command = str(value)
2215
1411
self.checker_command = unicode(value)
1412
2216
1413
# CheckerRunning - property
2217
@dbus_service_property(_interface,
2218
signature="b",
1414
@dbus_service_property(_interface, signature="b",
2219
1415
access="readwrite")
2220
1416
def CheckerRunning_dbus_property(self, value=None):
2221
1417
if value is None: # get
2224
1420
self.start_checker()
2225
1421
else:
2226
1422
self.stop_checker()
2227
1423
2228
1424
# ObjectPath - property
2229
@dbus_annotations(
2230
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2231
"org.freedesktop.DBus.Deprecated": "true"})
2232
1425
@dbus_service_property(_interface, signature="o", access="read")
2233
1426
def ObjectPath_dbus_property(self):
2234
return self.dbus_object_path # is already a dbus.ObjectPath
2235
1427
return self.dbus_object_path # is already a dbus.ObjectPath
1428
2236
1429
# Secret = property
2237
@dbus_annotations(
2238
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2239
"invalidates"})
2240
@dbus_service_property(_interface,
2241
signature="ay",
2242
access="write",
2243
byte_arrays=True)
1430
@dbus_service_property(_interface, signature="ay",
1431
access="write", byte_arrays=True)
2244
1432
def Secret_dbus_property(self, value):
2245
self.secret = bytes(value)
2246
1433
self.secret = str(value)
1434
2247
1435
del _interface
2248
1436
2249
1437
2250
class ProxyClient:
2251
def __init__(self, child_pipe, key_id, fpr, address):
1438
class ProxyClient(object):
1439
def __init__(self, child_pipe, fpr, address):
2252
1440
self._pipe = child_pipe
2253
self._pipe.send(('init', key_id, fpr, address))
1441
self._pipe.send(('init', fpr, address))
2254
1442
if not self._pipe.recv():
2255
raise KeyError(key_id or fpr)
2256
1443
raise KeyError()
1444
2257
1445
def __getattribute__(self, name):
2258
1446
if name == '_pipe':
2259
1447
return super(ProxyClient, self).__getattribute__(name)
2262
1450
if data[0] == 'data':
2263
1451
return data[1]
2264
1452
if data[0] == 'function':
2265
2266
1453
def func(*args, **kwargs):
2267
1454
self._pipe.send(('funcall', name, args, kwargs))
2268
1455
return self._pipe.recv()[1]
2269
2270
1456
return func
2271
1457
2272
1458
def __setattr__(self, name, value):
2273
1459
if name == '_pipe':
2274
1460
return super(ProxyClient, self).__setattr__(name, value)
2275
1461
self._pipe.send(('setattr', name, value))
2276
1462
2277
1463
1464
class ClientDBusTransitional(ClientDBus):
1465
__metaclass__ = AlternateDBusNamesMetaclass
1466
1467
2278
1468
class ClientHandler(socketserver.BaseRequestHandler, object):
2279
1469
"""A class to handle client connections.
2280
1470
2281
1471
Instantiated once for each connection to handle it.
2282
1472
Note: This will run in its own forked process."""
2283
1473
2284
1474
def handle(self):
2285
1475
with contextlib.closing(self.server.child_pipe) as child_pipe:
2286
1476
logger.info("TCP connection from: %s",
2287
str(self.client_address))
1477
unicode(self.client_address))
2288
1478
logger.debug("Pipe FD: %d",
2289
1479
self.server.child_pipe.fileno())
2290
2291
session = gnutls.ClientSession(self.request)
2292
2293
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2294
# "+AES-256-CBC", "+SHA1",
2295
# "+COMP-NULL", "+CTYPE-OPENPGP",
2296
# "+DHE-DSS"))
1480
1481
session = (gnutls.connection
1482
.ClientSession(self.request,
1483
gnutls.connection
1484
.X509Credentials()))
1485
1486
# Note: gnutls.connection.X509Credentials is really a
1487
# generic GnuTLS certificate credentials object so long as
1488
# no X.509 keys are added to it. Therefore, we can use it
1489
# here despite using OpenPGP certificates.
1490
1491
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1492
# "+AES-256-CBC", "+SHA1",
1493
# "+COMP-NULL", "+CTYPE-OPENPGP",
1494
# "+DHE-DSS"))
2297
1495
# Use a fallback default, since this MUST be set.
2298
1496
priority = self.server.gnutls_priority
2299
1497
if priority is None:
2300
1498
priority = "NORMAL"
2301
gnutls.priority_set_direct(session._c_object,
2302
priority.encode("utf-8"),
2303
None)
2304
1499
(gnutls.library.functions
1500
.gnutls_priority_set_direct(session._c_object,
1501
priority, None))
1502
2305
1503
# Start communication using the Mandos protocol
2306
1504
# Get protocol number
2307
1505
line = self.request.makefile().readline()
2308
1506
logger.debug("Protocol version: %r", line)
2309
1507
try:
2310
1508
if int(line.strip().split()[0]) > 1:
2311
raise RuntimeError(line)
1509
raise RuntimeError
2312
1510
except (ValueError, IndexError, RuntimeError) as error:
2313
1511
logger.error("Unknown protocol version: %s", error)
2314
1512
return
2315
1513
2316
1514
# Start GnuTLS connection
2317
1515
try:
2318
1516
session.handshake()
2319
except gnutls.Error as error:
1517
except gnutls.errors.GNUTLSError as error:
2320
1518
logger.warning("Handshake failed: %s", error)
2321
1519
# Do not run session.bye() here: the session is not
2322
1520
# established. Just abandon the request.
2323
1521
return
2324
1522
logger.debug("Handshake succeeded")
2325
1523
2326
1524
approval_required = False
2327
1525
try:
2328
if gnutls.has_rawpk:
2329
fpr = b""
2330
try:
2331
key_id = self.key_id(
2332
self.peer_certificate(session))
2333
except (TypeError, gnutls.Error) as error:
2334
logger.warning("Bad certificate: %s", error)
2335
return
2336
logger.debug("Key ID: %s", key_id)
2337
2338
else:
2339
key_id = b""
2340
try:
2341
fpr = self.fingerprint(
2342
self.peer_certificate(session))
2343
except (TypeError, gnutls.Error) as error:
2344
logger.warning("Bad certificate: %s", error)
2345
return
2346
logger.debug("Fingerprint: %s", fpr)
2347
2348
try:
2349
client = ProxyClient(child_pipe, key_id, fpr,
1526
try:
1527
fpr = self.fingerprint(self.peer_certificate
1528
(session))
1529
except (TypeError,
1530
gnutls.errors.GNUTLSError) as error:
1531
logger.warning("Bad certificate: %s", error)
1532
return
1533
logger.debug("Fingerprint: %s", fpr)
1534
1535
try:
1536
client = ProxyClient(child_pipe, fpr,
2350
1537
self.client_address)
2351
1538
except KeyError:
2352
1539
return
2353
1540
1541
if self.server.use_dbus:
1542
# Emit D-Bus signal
1543
client.NewRequest(str(self.client_address))
1544
2354
1545
if client.approval_delay:
2355
1546
delay = client.approval_delay
2356
1547
client.approvals_pending += 1
2357
1548
approval_required = True
2358
1549
2359
1550
while True:
2360
1551
if not client.enabled:
2361
1552
logger.info("Client %s is disabled",
2362
client.name)
1553
client.name)
2363
1554
if self.server.use_dbus:
2364
1555
# Emit D-Bus signal
2365
1556
client.Rejected("Disabled")
2366
1557
return
2367
1558
2368
1559
if client.approved or not client.approval_delay:
2369
# We are approved or approval is disabled
1560
#We are approved or approval is disabled
2370
1561
break
2371
1562
elif client.approved is None:
2372
1563
logger.info("Client %s needs approval",
2374
1565
if self.server.use_dbus:
2375
1566
# Emit D-Bus signal
2376
1567
client.NeedApproval(
2377
client.approval_delay.total_seconds()
2378
* 1000, client.approved_by_default)
1568
client.approval_delay_milliseconds(),
1569
client.approved_by_default)
2379
1570
else:
2380
1571
logger.warning("Client %s was not approved",
2381
1572
client.name)
2383
1574
# Emit D-Bus signal
2384
1575
client.Rejected("Denied")
2385
1576
return
2386
2387
# wait until timeout or approved
1577
1578
#wait until timeout or approved
2388
1579
time = datetime.datetime.now()
2389
1580
client.changedstate.acquire()
2390
client.changedstate.wait(delay.total_seconds())
1581
(client.changedstate.wait
1582
(float(client.timedelta_to_milliseconds(delay)
1583
/ 1000)))
2391
1584
client.changedstate.release()
2392
1585
time2 = datetime.datetime.now()
2393
1586
if (time2 - time) >= delay:
2403
1596
break
2404
1597
else:
2405
1598
delay -= time2 - time
2406
2407
try:
2408
session.send(client.secret)
2409
except gnutls.Error as error:
2410
logger.warning("gnutls send failed",
2411
exc_info=error)
2412
return
2413
1599
1600
sent_size = 0
1601
while sent_size < len(client.secret):
1602
try:
1603
sent = session.send(client.secret[sent_size:])
1604
except gnutls.errors.GNUTLSError as error:
1605
logger.warning("gnutls send failed")
1606
return
1607
logger.debug("Sent: %d, remaining: %d",
1608
sent, len(client.secret)
1609
- (sent_size + sent))
1610
sent_size += sent
1611
2414
1612
logger.info("Sending secret to %s", client.name)
2415
1613
# bump the timeout using extended_timeout
2416
client.bump_timeout(client.extended_timeout)
1614
client.checked_ok(client.extended_timeout)
2417
1615
if self.server.use_dbus:
2418
1616
# Emit D-Bus signal
2419
1617
client.GotSecret()
2420
1618
2421
1619
finally:
2422
1620
if approval_required:
2423
1621
client.approvals_pending -= 1
2424
1622
try:
2425
1623
session.bye()
2426
except gnutls.Error as error:
2427
logger.warning("GnuTLS bye failed",
2428
exc_info=error)
2429
1624
except gnutls.errors.GNUTLSError as error:
1625
logger.warning("GnuTLS bye failed")
1626
2430
1627
@staticmethod
2431
1628
def peer_certificate(session):
2432
"Return the peer's certificate as a bytestring"
2433
try:
2434
cert_type = gnutls.certificate_type_get2(session._c_object,
2435
gnutls.CTYPE_PEERS)
2436
except AttributeError:
2437
cert_type = gnutls.certificate_type_get(session._c_object)
2438
if gnutls.has_rawpk:
2439
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2440
else:
2441
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2442
# If not a valid certificate type...
2443
if cert_type not in valid_cert_types:
2444
logger.info("Cert type %r not in %r", cert_type,
2445
valid_cert_types)
2446
# ...return invalid data
2447
return b""
1629
"Return the peer's OpenPGP certificate as a bytestring"
1630
# If not an OpenPGP certificate...
1631
if (gnutls.library.functions
1632
.gnutls_certificate_type_get(session._c_object)
1633
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1634
# ...do the normal thing
1635
return session.peer_certificate
2448
1636
list_size = ctypes.c_uint(1)
2449
cert_list = (gnutls.certificate_get_peers
1637
cert_list = (gnutls.library.functions
1638
.gnutls_certificate_get_peers
2450
1639
(session._c_object, ctypes.byref(list_size)))
2451
1640
if not bool(cert_list) and list_size.value != 0:
2452
raise gnutls.Error("error getting peer certificate")
1641
raise gnutls.errors.GNUTLSError("error getting peer"
1642
" certificate")
2453
1643
if list_size.value == 0:
2454
1644
return None
2455
1645
cert = cert_list[0]
2456
1646
return ctypes.string_at(cert.data, cert.size)
2457
2458
@staticmethod
2459
def key_id(certificate):
2460
"Convert a certificate bytestring to a hexdigit key ID"
2461
# New GnuTLS "datum" with the public key
2462
datum = gnutls.datum_t(
2463
ctypes.cast(ctypes.c_char_p(certificate),
2464
ctypes.POINTER(ctypes.c_ubyte)),
2465
ctypes.c_uint(len(certificate)))
2466
# XXX all these need to be created in the gnutls "module"
2467
# New empty GnuTLS certificate
2468
pubkey = gnutls.pubkey_t()
2469
gnutls.pubkey_init(ctypes.byref(pubkey))
2470
# Import the raw public key into the certificate
2471
gnutls.pubkey_import(pubkey,
2472
ctypes.byref(datum),
2473
gnutls.X509_FMT_DER)
2474
# New buffer for the key ID
2475
buf = ctypes.create_string_buffer(32)
2476
buf_len = ctypes.c_size_t(len(buf))
2477
# Get the key ID from the raw public key into the buffer
2478
gnutls.pubkey_get_key_id(
2479
pubkey,
2480
gnutls.KEYID_USE_SHA256,
2481
ctypes.cast(ctypes.byref(buf),
2482
ctypes.POINTER(ctypes.c_ubyte)),
2483
ctypes.byref(buf_len))
2484
# Deinit the certificate
2485
gnutls.pubkey_deinit(pubkey)
2486
2487
# Convert the buffer to a Python bytestring
2488
key_id = ctypes.string_at(buf, buf_len.value)
2489
# Convert the bytestring to hexadecimal notation
2490
hex_key_id = binascii.hexlify(key_id).upper()
2491
return hex_key_id
2492
1647
2493
1648
@staticmethod
2494
1649
def fingerprint(openpgp):
2495
1650
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2496
1651
# New GnuTLS "datum" with the OpenPGP public key
2497
datum = gnutls.datum_t(
2498
ctypes.cast(ctypes.c_char_p(openpgp),
2499
ctypes.POINTER(ctypes.c_ubyte)),
2500
ctypes.c_uint(len(openpgp)))
1652
datum = (gnutls.library.types
1653
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1654
ctypes.POINTER
1655
(ctypes.c_ubyte)),
1656
ctypes.c_uint(len(openpgp))))
2501
1657
# New empty GnuTLS certificate
2502
crt = gnutls.openpgp_crt_t()
2503
gnutls.openpgp_crt_init(ctypes.byref(crt))
1658
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1659
(gnutls.library.functions
1660
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2504
1661
# Import the OpenPGP public key into the certificate
2505
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2506
gnutls.OPENPGP_FMT_RAW)
1662
(gnutls.library.functions
1663
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1664
gnutls.library.constants
1665
.GNUTLS_OPENPGP_FMT_RAW))
2507
1666
# Verify the self signature in the key
2508
1667
crtverify = ctypes.c_uint()
2509
gnutls.openpgp_crt_verify_self(crt, 0,
2510
ctypes.byref(crtverify))
1668
(gnutls.library.functions
1669
.gnutls_openpgp_crt_verify_self(crt, 0,
1670
ctypes.byref(crtverify)))
2511
1671
if crtverify.value != 0:
2512
gnutls.openpgp_crt_deinit(crt)
2513
raise gnutls.CertificateSecurityError(code
2514
=crtverify.value)
1672
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1673
raise (gnutls.errors.CertificateSecurityError
1674
("Verify failed"))
2515
1675
# New buffer for the fingerprint
2516
1676
buf = ctypes.create_string_buffer(20)
2517
1677
buf_len = ctypes.c_size_t()
2518
1678
# Get the fingerprint from the certificate into the buffer
2519
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2520
ctypes.byref(buf_len))
1679
(gnutls.library.functions
1680
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1681
ctypes.byref(buf_len)))
2521
1682
# Deinit the certificate
2522
gnutls.openpgp_crt_deinit(crt)
1683
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2523
1684
# Convert the buffer to a Python bytestring
2524
1685
fpr = ctypes.string_at(buf, buf_len.value)
2525
1686
# Convert the bytestring to hexadecimal notation
2527
1688
return hex_fpr
2528
1689
2529
1690
2530
class MultiprocessingMixIn:
1691
class MultiprocessingMixIn(object):
2531
1692
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2532
2533
1693
def sub_process_main(self, request, address):
2534
1694
try:
2535
1695
self.finish_request(request, address)
2536
1696
except Exception:
2537
1697
self.handle_error(request, address)
2538
1698
self.close_request(request)
2539
1699
2540
1700
def process_request(self, request, address):
2541
1701
"""Start a new process to process the request."""
2542
proc = multiprocessing.Process(target=self.sub_process_main,
2543
args=(request, address))
1702
proc = multiprocessing.Process(target = self.sub_process_main,
1703
args = (request,
1704
address))
2544
1705
proc.start()
2545
1706
return proc
2546
1707
2547
1708
2548
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1709
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2549
1710
""" adds a pipe to the MixIn """
2550
2551
1711
def process_request(self, request, client_address):
2552
1712
"""Overrides and wraps the original process_request().
2553
1713
2554
1714
This function creates a new pipe in self.pipe
2555
1715
"""
2556
1716
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2557
1717
2558
1718
proc = MultiprocessingMixIn.process_request(self, request,
2559
1719
client_address)
2560
1720
self.child_pipe.close()
2561
1721
self.add_pipe(parent_pipe, proc)
2562
1722
2563
1723
def add_pipe(self, parent_pipe, proc):
2564
1724
"""Dummy function; override as necessary"""
2565
raise NotImplementedError()
1725
raise NotImplementedError
2566
1726
2567
1727
2568
1728
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2569
socketserver.TCPServer):
1729
socketserver.TCPServer, object):
2570
1730
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2571
1731
2572
1732
Attributes:
2573
1733
enabled: Boolean; whether this server is activated yet
2574
1734
interface: None or a network interface name (string)
2575
1735
use_ipv6: Boolean; to use IPv6 or not
2576
1736
"""
2577
2578
1737
def __init__(self, server_address, RequestHandlerClass,
2579
interface=None,
2580
use_ipv6=True,
2581
socketfd=None):
2582
"""If socketfd is set, use that file descriptor instead of
2583
creating a new one with socket.socket().
2584
"""
1738
interface=None, use_ipv6=True):
2585
1739
self.interface = interface
2586
1740
if use_ipv6:
2587
1741
self.address_family = socket.AF_INET6
2588
if socketfd is not None:
2589
# Save the file descriptor
2590
self.socketfd = socketfd
2591
# Save the original socket.socket() function
2592
self.socket_socket = socket.socket
2593
2594
# To implement --socket, we monkey patch socket.socket.
2595
#
2596
# (When socketserver.TCPServer is a new-style class, we
2597
# could make self.socket into a property instead of monkey
2598
# patching socket.socket.)
2599
#
2600
# Create a one-time-only replacement for socket.socket()
2601
@functools.wraps(socket.socket)
2602
def socket_wrapper(*args, **kwargs):
2603
# Restore original function so subsequent calls are
2604
# not affected.
2605
socket.socket = self.socket_socket
2606
del self.socket_socket
2607
# This time only, return a new socket object from the
2608
# saved file descriptor.
2609
return socket.fromfd(self.socketfd, *args, **kwargs)
2610
# Replace socket.socket() function with wrapper
2611
socket.socket = socket_wrapper
2612
# The socketserver.TCPServer.__init__ will call
2613
# socket.socket(), which might be our replacement,
2614
# socket_wrapper(), if socketfd was set.
2615
1742
socketserver.TCPServer.__init__(self, server_address,
2616
1743
RequestHandlerClass)
2617
2618
1744
def server_bind(self):
2619
1745
"""This overrides the normal server_bind() function
2620
1746
to bind to an interface if one was specified, and also NOT to
2621
1747
bind to an address or port if they were not specified."""
2622
global SO_BINDTODEVICE
2623
1748
if self.interface is not None:
2624
1749
if SO_BINDTODEVICE is None:
2625
# Fall back to a hard-coded value which seems to be
2626
# common enough.
2627
logger.warning("SO_BINDTODEVICE not found, trying 25")
2628
SO_BINDTODEVICE = 25
2629
try:
2630
self.socket.setsockopt(
2631
socket.SOL_SOCKET, SO_BINDTODEVICE,
2632
(self.interface + "\0").encode("utf-8"))
2633
except socket.error as error:
2634
if error.errno == errno.EPERM:
2635
logger.error("No permission to bind to"
2636
" interface %s", self.interface)
2637
elif error.errno == errno.ENOPROTOOPT:
2638
logger.error("SO_BINDTODEVICE not available;"
2639
" cannot bind to interface %s",
2640
self.interface)
2641
elif error.errno == errno.ENODEV:
2642
logger.error("Interface %s does not exist,"
2643
" cannot bind", self.interface)
2644
else:
2645
raise
1750
logger.error("SO_BINDTODEVICE does not exist;"
1751
" cannot bind to interface %s",
1752
self.interface)
1753
else:
1754
try:
1755
self.socket.setsockopt(socket.SOL_SOCKET,
1756
SO_BINDTODEVICE,
1757
str(self.interface
1758
+ '\0'))
1759
except socket.error as error:
1760
if error[0] == errno.EPERM:
1761
logger.error("No permission to"
1762
" bind to interface %s",
1763
self.interface)
1764
elif error[0] == errno.ENOPROTOOPT:
1765
logger.error("SO_BINDTODEVICE not available;"
1766
" cannot bind to interface %s",
1767
self.interface)
1768
else:
1769
raise
2646
1770
# Only bind(2) the socket if we really need to.
2647
1771
if self.server_address[0] or self.server_address[1]:
2648
if self.server_address[1]:
2649
self.allow_reuse_address = True
2650
1772
if not self.server_address[0]:
2651
1773
if self.address_family == socket.AF_INET6:
2652
any_address = "::" # in6addr_any
1774
any_address = "::" # in6addr_any
2653
1775
else:
2654
any_address = "0.0.0.0" # INADDR_ANY
1776
any_address = socket.INADDR_ANY
2655
1777
self.server_address = (any_address,
2656
1778
self.server_address[1])
2657
1779
elif not self.server_address[1]:
2658
self.server_address = (self.server_address[0], 0)
1780
self.server_address = (self.server_address[0],
1781
0)
2659
1782
# if self.interface:
2660
1783
# self.server_address = (self.server_address[0],
2661
1784
# 0, # port
2667
1790
2668
1791
class MandosServer(IPv6_TCPServer):
2669
1792
"""Mandos server.
2670
1793
2671
1794
Attributes:
2672
1795
clients: set of Client objects
2673
1796
gnutls_priority GnuTLS priority string
2674
1797
use_dbus: Boolean; to emit D-Bus signals or not
2675
2676
Assumes a GLib.MainLoop event loop.
1798
1799
Assumes a gobject.MainLoop event loop.
2677
1800
"""
2678
2679
1801
def __init__(self, server_address, RequestHandlerClass,
2680
interface=None,
2681
use_ipv6=True,
2682
clients=None,
2683
gnutls_priority=None,
2684
use_dbus=True,
2685
socketfd=None):
1802
interface=None, use_ipv6=True, clients=None,
1803
gnutls_priority=None, use_dbus=True):
2686
1804
self.enabled = False
2687
1805
self.clients = clients
2688
1806
if self.clients is None:
2691
1809
self.gnutls_priority = gnutls_priority
2692
1810
IPv6_TCPServer.__init__(self, server_address,
2693
1811
RequestHandlerClass,
2694
interface=interface,
2695
use_ipv6=use_ipv6,
2696
socketfd=socketfd)
2697
1812
interface = interface,
1813
use_ipv6 = use_ipv6)
2698
1814
def server_activate(self):
2699
1815
if self.enabled:
2700
1816
return socketserver.TCPServer.server_activate(self)
2701
1817
2702
1818
def enable(self):
2703
1819
self.enabled = True
2704
1820
2705
1821
def add_pipe(self, parent_pipe, proc):
2706
1822
# Call "handle_ipc" for both data and EOF events
2707
GLib.io_add_watch(
2708
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2709
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2710
functools.partial(self.handle_ipc,
2711
parent_pipe=parent_pipe,
2712
proc=proc))
2713
2714
def handle_ipc(self, source, condition,
2715
parent_pipe=None,
2716
proc=None,
2717
client_object=None):
1823
gobject.io_add_watch(parent_pipe.fileno(),
1824
gobject.IO_IN | gobject.IO_HUP,
1825
functools.partial(self.handle_ipc,
1826
parent_pipe =
1827
parent_pipe,
1828
proc = proc))
1829
1830
def handle_ipc(self, source, condition, parent_pipe=None,
1831
proc = None, client_object=None):
1832
condition_names = {
1833
gobject.IO_IN: "IN", # There is data to read.
1834
gobject.IO_OUT: "OUT", # Data can be written (without
1835
# blocking).
1836
gobject.IO_PRI: "PRI", # There is urgent data to read.
1837
gobject.IO_ERR: "ERR", # Error condition.
1838
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1839
# broken, usually for pipes and
1840
# sockets).
1841
}
1842
conditions_string = ' | '.join(name
1843
for cond, name in
1844
condition_names.iteritems()
1845
if cond & condition)
2718
1846
# error, or the other end of multiprocessing.Pipe has closed
2719
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1847
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2720
1848
# Wait for other process to exit
2721
1849
proc.join()
2722
1850
return False
2723
1851
2724
1852
# Read a request from the child
2725
1853
request = parent_pipe.recv()
2726
1854
command = request[0]
2727
1855
2728
1856
if command == 'init':
2729
key_id = request[1].decode("ascii")
2730
fpr = request[2].decode("ascii")
2731
address = request[3]
2732
2733
for c in self.clients.values():
2734
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2735
"27AE41E4649B934CA495991B7852B855"):
2736
continue
2737
if key_id and c.key_id == key_id:
2738
client = c
2739
break
2740
if fpr and c.fingerprint == fpr:
1857
fpr = request[1]
1858
address = request[2]
1859
1860
for c in self.clients.itervalues():
1861
if c.fingerprint == fpr:
2741
1862
client = c
2742
1863
break
2743
1864
else:
2744
logger.info("Client not found for key ID: %s, address"
2745
": %s", key_id or fpr, address)
1865
logger.info("Client not found for fingerprint: %s, ad"
1866
"dress: %s", fpr, address)
2746
1867
if self.use_dbus:
2747
1868
# Emit D-Bus signal
2748
mandos_dbus_service.ClientNotFound(key_id or fpr,
1869
mandos_dbus_service.ClientNotFound(fpr,
2749
1870
address[0])
2750
1871
parent_pipe.send(False)
2751
1872
return False
2752
2753
GLib.io_add_watch(
2754
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2755
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2756
functools.partial(self.handle_ipc,
2757
parent_pipe=parent_pipe,
2758
proc=proc,
2759
client_object=client))
1873
1874
gobject.io_add_watch(parent_pipe.fileno(),
1875
gobject.IO_IN | gobject.IO_HUP,
1876
functools.partial(self.handle_ipc,
1877
parent_pipe =
1878
parent_pipe,
1879
proc = proc,
1880
client_object =
1881
client))
2760
1882
parent_pipe.send(True)
2761
1883
# remove the old hook in favor of the new above hook on
2762
1884
# same fileno
2765
1887
funcname = request[1]
2766
1888
args = request[2]
2767
1889
kwargs = request[3]
2768
1890
2769
1891
parent_pipe.send(('data', getattr(client_object,
2770
1892
funcname)(*args,
2771
**kwargs)))
2772
1893
**kwargs)))
1894
2773
1895
if command == 'getattr':
2774
1896
attrname = request[1]
2775
if isinstance(client_object.__getattribute__(attrname),
2776
collections.abc.Callable):
2777
parent_pipe.send(('function', ))
1897
if callable(client_object.__getattribute__(attrname)):
1898
parent_pipe.send(('function',))
2778
1899
else:
2779
parent_pipe.send((
2780
'data', client_object.__getattribute__(attrname)))
2781
1900
parent_pipe.send(('data', client_object
1901
.__getattribute__(attrname)))
1902
2782
1903
if command == 'setattr':
2783
1904
attrname = request[1]
2784
1905
value = request[2]
2785
1906
setattr(client_object, attrname, value)
2786
1907
2787
1908
return True
2788
1909
2789
1910
2790
def rfc3339_duration_to_delta(duration):
2791
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2792
2793
>>> timedelta = datetime.timedelta
2794
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2795
True
2796
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2797
True
2798
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2799
True
2800
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2801
True
2802
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2803
True
2804
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2805
True
2806
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2807
True
2808
>>> del timedelta
2809
"""
2810
2811
# Parsing an RFC 3339 duration with regular expressions is not
2812
# possible - there would have to be multiple places for the same
2813
# values, like seconds. The current code, while more esoteric, is
2814
# cleaner without depending on a parsing library. If Python had a
2815
# built-in library for parsing we would use it, but we'd like to
2816
# avoid excessive use of external libraries.
2817
2818
# New type for defining tokens, syntax, and semantics all-in-one
2819
Token = collections.namedtuple("Token", (
2820
"regexp", # To match token; if "value" is not None, must have
2821
# a "group" containing digits
2822
"value", # datetime.timedelta or None
2823
"followers")) # Tokens valid after this token
2824
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2825
# the "duration" ABNF definition in RFC 3339, Appendix A.
2826
token_end = Token(re.compile(r"$"), None, frozenset())
2827
token_second = Token(re.compile(r"(\d+)S"),
2828
datetime.timedelta(seconds=1),
2829
frozenset((token_end, )))
2830
token_minute = Token(re.compile(r"(\d+)M"),
2831
datetime.timedelta(minutes=1),
2832
frozenset((token_second, token_end)))
2833
token_hour = Token(re.compile(r"(\d+)H"),
2834
datetime.timedelta(hours=1),
2835
frozenset((token_minute, token_end)))
2836
token_time = Token(re.compile(r"T"),
2837
None,
2838
frozenset((token_hour, token_minute,
2839
token_second)))
2840
token_day = Token(re.compile(r"(\d+)D"),
2841
datetime.timedelta(days=1),
2842
frozenset((token_time, token_end)))
2843
token_month = Token(re.compile(r"(\d+)M"),
2844
datetime.timedelta(weeks=4),
2845
frozenset((token_day, token_end)))
2846
token_year = Token(re.compile(r"(\d+)Y"),
2847
datetime.timedelta(weeks=52),
2848
frozenset((token_month, token_end)))
2849
token_week = Token(re.compile(r"(\d+)W"),
2850
datetime.timedelta(weeks=1),
2851
frozenset((token_end, )))
2852
token_duration = Token(re.compile(r"P"), None,
2853
frozenset((token_year, token_month,
2854
token_day, token_time,
2855
token_week)))
2856
# Define starting values:
2857
# Value so far
2858
value = datetime.timedelta()
2859
found_token = None
2860
# Following valid tokens
2861
followers = frozenset((token_duration, ))
2862
# String left to parse
2863
s = duration
2864
# Loop until end token is found
2865
while found_token is not token_end:
2866
# Search for any currently valid tokens
2867
for token in followers:
2868
match = token.regexp.match(s)
2869
if match is not None:
2870
# Token found
2871
if token.value is not None:
2872
# Value found, parse digits
2873
factor = int(match.group(1), 10)
2874
# Add to value so far
2875
value += factor * token.value
2876
# Strip token from string
2877
s = token.regexp.sub("", s, 1)
2878
# Go to found token
2879
found_token = token
2880
# Set valid next tokens
2881
followers = found_token.followers
2882
break
2883
else:
2884
# No currently valid tokens were found
2885
raise ValueError("Invalid RFC 3339 duration: {!r}"
2886
.format(duration))
2887
# End token found
2888
return value
2889
2890
2891
1911
def string_to_delta(interval):
2892
1912
"""Parse a string and return a datetime.timedelta
2893
2894
>>> string_to_delta('7d') == datetime.timedelta(7)
2895
True
2896
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2897
True
2898
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2899
True
2900
>>> string_to_delta('24h') == datetime.timedelta(1)
2901
True
2902
>>> string_to_delta('1w') == datetime.timedelta(7)
2903
True
2904
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2905
True
1913
1914
>>> string_to_delta('7d')
1915
datetime.timedelta(7)
1916
>>> string_to_delta('60s')
1917
datetime.timedelta(0, 60)
1918
>>> string_to_delta('60m')
1919
datetime.timedelta(0, 3600)
1920
>>> string_to_delta('24h')
1921
datetime.timedelta(1)
1922
>>> string_to_delta('1w')
1923
datetime.timedelta(7)
1924
>>> string_to_delta('5m 30s')
1925
datetime.timedelta(0, 330)
2906
1926
"""
2907
2908
try:
2909
return rfc3339_duration_to_delta(interval)
2910
except ValueError:
2911
pass
2912
2913
1927
timevalue = datetime.timedelta(0)
2914
1928
for s in interval.split():
2915
1929
try:
2916
suffix = s[-1]
1930
suffix = unicode(s[-1])
2917
1931
value = int(s[:-1])
2918
1932
if suffix == "d":
2919
1933
delta = datetime.timedelta(value)
2926
1940
elif suffix == "w":
2927
1941
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2928
1942
else:
2929
raise ValueError("Unknown suffix {!r}".format(suffix))
2930
except IndexError as e:
1943
raise ValueError("Unknown suffix %r" % suffix)
1944
except (ValueError, IndexError) as e:
2931
1945
raise ValueError(*(e.args))
2932
1946
timevalue += delta
2933
1947
return timevalue
2934
1948
2935
1949
2936
def daemon(nochdir=False, noclose=False):
1950
def daemon(nochdir = False, noclose = False):
2937
1951
"""See daemon(3). Standard BSD Unix function.
2938
1952
2939
1953
This should really exist as os.daemon, but it doesn't (yet)."""
2940
1954
if os.fork():
2941
1955
sys.exit()
2946
1960
sys.exit()
2947
1961
if not noclose:
2948
1962
# Close all standard open file descriptors
2949
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1963
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2950
1964
if not stat.S_ISCHR(os.fstat(null).st_mode):
2951
1965
raise OSError(errno.ENODEV,
2952
"{} not a character device"
2953
.format(os.devnull))
1966
"%s not a character device"
1967
% os.path.devnull)
2954
1968
os.dup2(null, sys.stdin.fileno())
2955
1969
os.dup2(null, sys.stdout.fileno())
2956
1970
os.dup2(null, sys.stderr.fileno())
2959
1973
2960
1974
2961
1975
def main():
2962
1976
2963
1977
##################################################################
2964
1978
# Parsing of options, both command line and config file
2965
1979
2966
1980
parser = argparse.ArgumentParser()
2967
1981
parser.add_argument("-v", "--version", action="version",
2968
version="%(prog)s {}".format(version),
1982
version = "%%(prog)s %s" % version,
2969
1983
help="show version number and exit")
2970
1984
parser.add_argument("-i", "--interface", metavar="IF",
2971
1985
help="Bind to interface IF")
2977
1991
help="Run self-test")
2978
1992
parser.add_argument("--debug", action="store_true",
2979
1993
help="Debug mode; run in foreground and log"
2980
" to terminal", default=None)
1994
" to terminal")
2981
1995
parser.add_argument("--debuglevel", metavar="LEVEL",
2982
1996
help="Debug level for stdout output")
2983
1997
parser.add_argument("--priority", help="GnuTLS"
2990
2004
" files")
2991
2005
parser.add_argument("--no-dbus", action="store_false",
2992
2006
dest="use_dbus", help="Do not provide D-Bus"
2993
" system bus interface", default=None)
2007
" system bus interface")
2994
2008
parser.add_argument("--no-ipv6", action="store_false",
2995
dest="use_ipv6", help="Do not use IPv6",
2996
default=None)
2009
dest="use_ipv6", help="Do not use IPv6")
2997
2010
parser.add_argument("--no-restore", action="store_false",
2998
2011
dest="restore", help="Do not restore stored"
2999
" state", default=None)
3000
parser.add_argument("--socket", type=int,
3001
help="Specify a file descriptor to a network"
3002
" socket to use instead of creating one")
2012
" state")
3003
2013
parser.add_argument("--statedir", metavar="DIR",
3004
2014
help="Directory to save/restore state in")
3005
parser.add_argument("--foreground", action="store_true",
3006
help="Run in foreground", default=None)
3007
parser.add_argument("--no-zeroconf", action="store_false",
3008
dest="zeroconf", help="Do not use Zeroconf",
3009
default=None)
3010
2015
3011
2016
options = parser.parse_args()
3012
2017
2018
if options.check:
2019
import doctest
2020
doctest.testmod()
2021
sys.exit()
2022
3013
2023
# Default values for config file for server-global settings
3014
if gnutls.has_rawpk:
3015
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3016
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3017
else:
3018
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3019
":+SIGN-DSA-SHA256")
3020
server_defaults = {"interface": "",
3021
"address": "",
3022
"port": "",
3023
"debug": "False",
3024
"priority": priority,
3025
"servicename": "Mandos",
3026
"use_dbus": "True",
3027
"use_ipv6": "True",
3028
"debuglevel": "",
3029
"restore": "True",
3030
"socket": "",
3031
"statedir": "/var/lib/mandos",
3032
"foreground": "False",
3033
"zeroconf": "True",
3034
}
3035
del priority
3036
2024
server_defaults = { "interface": "",
2025
"address": "",
2026
"port": "",
2027
"debug": "False",
2028
"priority":
2029
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2030
"servicename": "Mandos",
2031
"use_dbus": "True",
2032
"use_ipv6": "True",
2033
"debuglevel": "",
2034
"restore": "True",
2035
"statedir": "/var/lib/mandos"
2036
}
2037
3037
2038
# Parse config file for server-global settings
3038
server_config = configparser.ConfigParser(server_defaults)
2039
server_config = configparser.SafeConfigParser(server_defaults)
3039
2040
del server_defaults
3040
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3041
# Convert the ConfigParser object to a dict
2041
server_config.read(os.path.join(options.configdir,
2042
"mandos.conf"))
2043
# Convert the SafeConfigParser object to a dict
3042
2044
server_settings = server_config.defaults()
3043
2045
# Use the appropriate methods on the non-string config options
3044
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3045
"foreground", "zeroconf"):
2046
for option in ("debug", "use_dbus", "use_ipv6"):
3046
2047
server_settings[option] = server_config.getboolean("DEFAULT",
3047
2048
option)
3048
2049
if server_settings["port"]:
3049
2050
server_settings["port"] = server_config.getint("DEFAULT",
3050
2051
"port")
3051
if server_settings["socket"]:
3052
server_settings["socket"] = server_config.getint("DEFAULT",
3053
"socket")
3054
# Later, stdin will, and stdout and stderr might, be dup'ed
3055
# over with an opened os.devnull. But we don't want this to
3056
# happen with a supplied network socket.
3057
if 0 <= server_settings["socket"] <= 2:
3058
server_settings["socket"] = os.dup(server_settings
3059
["socket"])
3060
2052
del server_config
3061
2053
3062
2054
# Override the settings from the config file with command line
3063
2055
# options, if set.
3064
2056
for option in ("interface", "address", "port", "debug",
3065
"priority", "servicename", "configdir", "use_dbus",
3066
"use_ipv6", "debuglevel", "restore", "statedir",
3067
"socket", "foreground", "zeroconf"):
2057
"priority", "servicename", "configdir",
2058
"use_dbus", "use_ipv6", "debuglevel", "restore",
2059
"statedir"):
3068
2060
value = getattr(options, option)
3069
2061
if value is not None:
3070
2062
server_settings[option] = value
3071
2063
del options
3072
2064
# Force all strings to be unicode
3073
2065
for option in server_settings.keys():
3074
if isinstance(server_settings[option], bytes):
3075
server_settings[option] = (server_settings[option]
3076
.decode("utf-8"))
3077
# Force all boolean options to be boolean
3078
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3079
"foreground", "zeroconf"):
3080
server_settings[option] = bool(server_settings[option])
3081
# Debug implies foreground
3082
if server_settings["debug"]:
3083
server_settings["foreground"] = True
2066
if type(server_settings[option]) is str:
2067
server_settings[option] = unicode(server_settings[option])
3084
2068
# Now we have our good server settings in "server_settings"
3085
2069
3086
2070
##################################################################
3087
3088
if (not server_settings["zeroconf"]
3089
and not (server_settings["port"]
3090
or server_settings["socket"] != "")):
3091
parser.error("Needs port or socket to work without Zeroconf")
3092
2071
3093
2072
# For convenience
3094
2073
debug = server_settings["debug"]
3095
2074
debuglevel = server_settings["debuglevel"]
3097
2076
use_ipv6 = server_settings["use_ipv6"]
3098
2077
stored_state_path = os.path.join(server_settings["statedir"],
3099
2078
stored_state_file)
3100
foreground = server_settings["foreground"]
3101
zeroconf = server_settings["zeroconf"]
3102
2079
3103
2080
if debug:
3104
initlogger(debug, logging.DEBUG)
2081
initlogger(logging.DEBUG)
3105
2082
else:
3106
2083
if not debuglevel:
3107
initlogger(debug)
2084
initlogger()
3108
2085
else:
3109
2086
level = getattr(logging, debuglevel.upper())
3110
initlogger(debug, level)
3111
2087
initlogger(level)
2088
3112
2089
if server_settings["servicename"] != "Mandos":
3113
syslogger.setFormatter(
3114
logging.Formatter('Mandos ({}) [%(process)d]:'
3115
' %(levelname)s: %(message)s'.format(
3116
server_settings["servicename"])))
3117
2090
syslogger.setFormatter(logging.Formatter
2091
('Mandos (%s) [%%(process)d]:'
2092
' %%(levelname)s: %%(message)s'
2093
% server_settings["servicename"]))
2094
3118
2095
# Parse config file with clients
3119
client_config = configparser.ConfigParser(Client.client_defaults)
2096
client_config = configparser.SafeConfigParser(Client.client_defaults)
3120
2097
client_config.read(os.path.join(server_settings["configdir"],
3121
2098
"clients.conf"))
3122
2099
3123
2100
global mandos_dbus_service
3124
2101
mandos_dbus_service = None
3125
3126
socketfd = None
3127
if server_settings["socket"] != "":
3128
socketfd = server_settings["socket"]
3129
tcp_server = MandosServer(
3130
(server_settings["address"], server_settings["port"]),
3131
ClientHandler,
3132
interface=(server_settings["interface"] or None),
3133
use_ipv6=use_ipv6,
3134
gnutls_priority=server_settings["priority"],
3135
use_dbus=use_dbus,
3136
socketfd=socketfd)
3137
if not foreground:
3138
pidfilename = "/run/mandos.pid"
3139
if not os.path.isdir("/run/."):
3140
pidfilename = "/var/run/mandos.pid"
3141
pidfile = None
3142
try:
3143
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3144
except IOError as e:
3145
logger.error("Could not open file %r", pidfilename,
3146
exc_info=e)
3147
3148
for name, group in (("_mandos", "_mandos"),
3149
("mandos", "mandos"),
3150
("nobody", "nogroup")):
3151
try:
3152
uid = pwd.getpwnam(name).pw_uid
3153
gid = pwd.getpwnam(group).pw_gid
3154
break
2102
2103
tcp_server = MandosServer((server_settings["address"],
2104
server_settings["port"]),
2105
ClientHandler,
2106
interface=(server_settings["interface"]
2107
or None),
2108
use_ipv6=use_ipv6,
2109
gnutls_priority=
2110
server_settings["priority"],
2111
use_dbus=use_dbus)
2112
if not debug:
2113
pidfilename = "/var/run/mandos.pid"
2114
try:
2115
pidfile = open(pidfilename, "w")
2116
except IOError:
2117
logger.error("Could not open file %r", pidfilename)
2118
2119
try:
2120
uid = pwd.getpwnam("_mandos").pw_uid
2121
gid = pwd.getpwnam("_mandos").pw_gid
2122
except KeyError:
2123
try:
2124
uid = pwd.getpwnam("mandos").pw_uid
2125
gid = pwd.getpwnam("mandos").pw_gid
3155
2126
except KeyError:
3156
continue
3157
else:
3158
uid = 65534
3159
gid = 65534
2127
try:
2128
uid = pwd.getpwnam("nobody").pw_uid
2129
gid = pwd.getpwnam("nobody").pw_gid
2130
except KeyError:
2131
uid = 65534
2132
gid = 65534
3160
2133
try:
3161
2134
os.setgid(gid)
3162
2135
os.setuid(uid)
3163
if debug:
3164
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3165
gid))
3166
2136
except OSError as error:
3167
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3168
.format(uid, gid, os.strerror(error.errno)))
3169
if error.errno != errno.EPERM:
3170
raise
3171
2137
if error[0] != errno.EPERM:
2138
raise error
2139
3172
2140
if debug:
3173
2141
# Enable all possible GnuTLS debugging
3174
2142
3175
2143
# "Use a log level over 10 to enable all debugging options."
3176
2144
# - GnuTLS manual
3177
gnutls.global_set_log_level(11)
3178
3179
@gnutls.log_func
2145
gnutls.library.functions.gnutls_global_set_log_level(11)
2146
2147
@gnutls.library.types.gnutls_log_func
3180
2148
def debug_gnutls(level, string):
3181
2149
logger.debug("GnuTLS: %s", string[:-1])
3182
3183
gnutls.global_set_log_function(debug_gnutls)
3184
2150
2151
(gnutls.library.functions
2152
.gnutls_global_set_log_function(debug_gnutls))
2153
3185
2154
# Redirect stdin so all checkers get /dev/null
3186
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2155
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3187
2156
os.dup2(null, sys.stdin.fileno())
3188
2157
if null > 2:
3189
2158
os.close(null)
3190
2159
else:
2160
# No console logging
2161
logger.removeHandler(console)
2162
3191
2163
# Need to fork before connecting to D-Bus
3192
if not foreground:
2164
if not debug:
3193
2165
# Close all input and output, do double fork, etc.
3194
2166
daemon()
3195
3196
if gi.version_info < (3, 10, 2):
3197
# multiprocessing will use threads, so before we use GLib we
3198
# need to inform GLib that threads will be used.
3199
GLib.threads_init()
3200
2167
3201
2168
global main_loop
3202
2169
# From the Avahi example code
3203
DBusGMainLoop(set_as_default=True)
3204
main_loop = GLib.MainLoop()
2170
DBusGMainLoop(set_as_default=True )
2171
main_loop = gobject.MainLoop()
3205
2172
bus = dbus.SystemBus()
3206
2173
# End of Avahi example code
3207
2174
if use_dbus:
3208
2175
try:
3209
2176
bus_name = dbus.service.BusName("se.recompile.Mandos",
3210
bus,
3211
do_not_queue=True)
3212
old_bus_name = dbus.service.BusName(
3213
"se.bsnet.fukt.Mandos", bus,
3214
do_not_queue=True)
3215
except dbus.exceptions.DBusException as e:
3216
logger.error("Disabling D-Bus:", exc_info=e)
2177
bus, do_not_queue=True)
2178
old_bus_name = (dbus.service.BusName
2179
("se.bsnet.fukt.Mandos", bus,
2180
do_not_queue=True))
2181
except dbus.exceptions.NameExistsException as e:
2182
logger.error(unicode(e) + ", disabling D-Bus")
3217
2183
use_dbus = False
3218
2184
server_settings["use_dbus"] = False
3219
2185
tcp_server.use_dbus = False
3220
if zeroconf:
3221
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3222
service = AvahiServiceToSyslog(
3223
name=server_settings["servicename"],
3224
servicetype="_mandos._tcp",
3225
protocol=protocol,
3226
bus=bus)
3227
if server_settings["interface"]:
3228
service.interface = if_nametoindex(
3229
server_settings["interface"].encode("utf-8"))
3230
2186
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2187
service = AvahiServiceToSyslog(name =
2188
server_settings["servicename"],
2189
servicetype = "_mandos._tcp",
2190
protocol = protocol, bus = bus)
2191
if server_settings["interface"]:
2192
service.interface = (if_nametoindex
2193
(str(server_settings["interface"])))
2194
3231
2195
global multiprocessing_manager
3232
2196
multiprocessing_manager = multiprocessing.Manager()
3233
2197
3234
2198
client_class = Client
3235
2199
if use_dbus:
3236
client_class = functools.partial(ClientDBus, bus=bus)
3237
2200
client_class = functools.partial(ClientDBusTransitional,
2201
bus = bus)
2202
3238
2203
client_settings = Client.config_parser(client_config)
3239
2204
old_client_settings = {}
3240
2205
clients_data = {}
3241
3242
# This is used to redirect stdout and stderr for checker processes
3243
global wnull
3244
wnull = open(os.devnull, "w") # A writable /dev/null
3245
# Only used if server is running in foreground but not in debug
3246
# mode
3247
if debug or not foreground:
3248
wnull.close()
3249
2206
3250
2207
# Get client data and settings from last running state.
3251
2208
if server_settings["restore"]:
3252
2209
try:
3253
2210
with open(stored_state_path, "rb") as stored_state:
3254
if sys.version_info.major == 2:
3255
clients_data, old_client_settings = pickle.load(
3256
stored_state)
3257
else:
3258
bytes_clients_data, bytes_old_client_settings = (
3259
pickle.load(stored_state, encoding="bytes"))
3260
# Fix bytes to strings
3261
# clients_data
3262
# .keys()
3263
clients_data = {(key.decode("utf-8")
3264
if isinstance(key, bytes)
3265
else key): value
3266
for key, value in
3267
bytes_clients_data.items()}
3268
del bytes_clients_data
3269
for key in clients_data:
3270
value = {(k.decode("utf-8")
3271
if isinstance(k, bytes) else k): v
3272
for k, v in
3273
clients_data[key].items()}
3274
clients_data[key] = value
3275
# .client_structure
3276
value["client_structure"] = [
3277
(s.decode("utf-8")
3278
if isinstance(s, bytes)
3279
else s) for s in
3280
value["client_structure"]]
3281
# .name, .host, and .checker_command
3282
for k in ("name", "host", "checker_command"):
3283
if isinstance(value[k], bytes):
3284
value[k] = value[k].decode("utf-8")
3285
if "key_id" not in value:
3286
value["key_id"] = ""
3287
elif "fingerprint" not in value:
3288
value["fingerprint"] = ""
3289
# old_client_settings
3290
# .keys()
3291
old_client_settings = {
3292
(key.decode("utf-8")
3293
if isinstance(key, bytes)
3294
else key): value
3295
for key, value in
3296
bytes_old_client_settings.items()}
3297
del bytes_old_client_settings
3298
# .host and .checker_command
3299
for value in old_client_settings.values():
3300
for attribute in ("host", "checker_command"):
3301
if isinstance(value[attribute], bytes):
3302
value[attribute] = (value[attribute]
3303
.decode("utf-8"))
2211
clients_data, old_client_settings = (pickle.load
2212
(stored_state))
3304
2213
os.remove(stored_state_path)
3305
2214
except IOError as e:
3306
if e.errno == errno.ENOENT:
3307
logger.warning("Could not load persistent state:"
3308
" {}".format(os.strerror(e.errno)))
3309
else:
3310
logger.critical("Could not load persistent state:",
3311
exc_info=e)
2215
logger.warning("Could not load persistent state: {0}"
2216
.format(e))
2217
if e.errno != errno.ENOENT:
3312
2218
raise
3313
except EOFError as e:
3314
logger.warning("Could not load persistent state: "
3315
"EOFError:",
3316
exc_info=e)
3317
2219
3318
2220
with PGPEngine() as pgp:
3319
for client_name, client in clients_data.items():
3320
# Skip removed clients
3321
if client_name not in client_settings:
3322
continue
3323
2221
for client_name, client in clients_data.iteritems():
3324
2222
# Decide which value to use after restoring saved state.
3325
2223
# We have three different values: Old config file,
3326
2224
# new config file, and saved state.
3331
2229
# For each value in new config, check if it
3332
2230
# differs from the old config value (Except for
3333
2231
# the "secret" attribute)
3334
if (name != "secret"
3335
and (value !=
3336
old_client_settings[client_name][name])):
2232
if (name != "secret" and
2233
value != old_client_settings[client_name]
2234
[name]):
3337
2235
client[name] = value
3338
2236
except KeyError:
3339
2237
pass
3340
2238
3341
2239
# Clients who has passed its expire date can still be
3342
# enabled if its last checker was successful. A Client
3343
# whose checker succeeded before we stored its state is
3344
# assumed to have successfully run all checkers during
3345
# downtime.
2240
# enabled if its last checker was successful. Clients
2241
# whose checker failed before we stored its state is
2242
# assumed to have failed all checkers during downtime.
3346
2243
if client["enabled"]:
3347
2244
if datetime.datetime.utcnow() >= client["expires"]:
3348
2245
if not client["last_checked_ok"]:
3349
2246
logger.warning(
3350
"disabling client {} - Client never "
3351
"performed a successful checker".format(
3352
client_name))
2247
"disabling client {0} - Client never "
2248
"performed a successfull checker"
2249
.format(client["name"]))
3353
2250
client["enabled"] = False
3354
2251
elif client["last_checker_status"] != 0:
3355
2252
logger.warning(
3356
"disabling client {} - Client last"
3357
" checker failed with error code"
3358
" {}".format(
3359
client_name,
3360
client["last_checker_status"]))
2253
"disabling client {0} - Client "
2254
"last checker failed with error code {1}"
2255
.format(client["name"],
2256
client["last_checker_status"]))
3361
2257
client["enabled"] = False
3362
2258
else:
3363
client["expires"] = (
3364
datetime.datetime.utcnow()
3365
+ client["timeout"])
3366
logger.debug("Last checker succeeded,"
3367
" keeping {} enabled".format(
3368
client_name))
2259
client["expires"] = (datetime.datetime
2260
.utcnow()
2261
+ client["timeout"])
2262
3369
2263
try:
3370
client["secret"] = pgp.decrypt(
3371
client["encrypted_secret"],
3372
client_settings[client_name]["secret"])
2264
client["secret"] = (
2265
pgp.decrypt(client["encrypted_secret"],
2266
client_settings[client_name]
2267
["secret"]))
3373
2268
except PGPError:
3374
2269
# If decryption fails, we use secret from new settings
3375
logger.debug("Failed to decrypt {} old secret".format(
3376
client_name))
3377
client["secret"] = (client_settings[client_name]
3378
["secret"])
2270
logger.debug("Failed to decrypt {0} old secret"
2271
.format(client_name))
2272
client["secret"] = (
2273
client_settings[client_name]["secret"])
3379
2274
2275
3380
2276
# Add/remove clients based on new changes made to config
3381
for client_name in (set(old_client_settings)
3382
- set(client_settings)):
2277
for client_name in set(old_client_settings) - set(client_settings):
3383
2278
del clients_data[client_name]
3384
for client_name in (set(client_settings)
3385
- set(old_client_settings)):
2279
for client_name in set(client_settings) - set(old_client_settings):
3386
2280
clients_data[client_name] = client_settings[client_name]
3387
2281
3388
# Create all client objects
3389
for client_name, client in clients_data.items():
2282
# Create clients all clients
2283
for client_name, client in clients_data.iteritems():
3390
2284
tcp_server.clients[client_name] = client_class(
3391
name=client_name,
3392
settings=client,
3393
server_settings=server_settings)
3394
2285
name = client_name, settings = client)
2286
3395
2287
if not tcp_server.clients:
3396
2288
logger.warning("No clients defined")
3397
3398
if not foreground:
3399
if pidfile is not None:
3400
pid = os.getpid()
3401
try:
3402
with pidfile:
3403
print(pid, file=pidfile)
3404
except IOError:
3405
logger.error("Could not write to file %r with PID %d",
3406
pidfilename, pid)
3407
del pidfile
2289
2290
if not debug:
2291
try:
2292
with pidfile:
2293
pid = os.getpid()
2294
pidfile.write(str(pid) + "\n".encode("utf-8"))
2295
del pidfile
2296
except IOError:
2297
logger.error("Could not write to file %r with PID %d",
2298
pidfilename, pid)
2299
except NameError:
2300
# "pidfile" was never created
2301
pass
3408
2302
del pidfilename
3409
3410
for termsig in (signal.SIGHUP, signal.SIGTERM):
3411
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3412
lambda: main_loop.quit() and False)
3413
2303
signal.signal(signal.SIGINT, signal.SIG_IGN)
2304
2305
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2306
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2307
3414
2308
if use_dbus:
3415
3416
@alternate_dbus_interfaces(
3417
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3418
class MandosDBusService(DBusObjectWithObjectManager):
2309
class MandosDBusService(dbus.service.Object):
3419
2310
"""A D-Bus proxy object"""
3420
3421
2311
def __init__(self):
3422
2312
dbus.service.Object.__init__(self, bus, "/")
3423
3424
2313
_interface = "se.recompile.Mandos"
3425
2314
3426
2315
@dbus.service.signal(_interface, signature="o")
3427
2316
def ClientAdded(self, objpath):
3428
2317
"D-Bus signal"
3429
2318
pass
3430
2319
3431
2320
@dbus.service.signal(_interface, signature="ss")
3432
def ClientNotFound(self, key_id, address):
2321
def ClientNotFound(self, fingerprint, address):
3433
2322
"D-Bus signal"
3434
2323
pass
3435
3436
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3437
"true"})
2324
3438
2325
@dbus.service.signal(_interface, signature="os")
3439
2326
def ClientRemoved(self, objpath, name):
3440
2327
"D-Bus signal"
3441
2328
pass
3442
3443
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3444
"true"})
2329
3445
2330
@dbus.service.method(_interface, out_signature="ao")
3446
2331
def GetAllClients(self):
3447
2332
"D-Bus method"
3448
return dbus.Array(c.dbus_object_path for c in
3449
tcp_server.clients.values())
3450
3451
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3452
"true"})
2333
return dbus.Array(c.dbus_object_path
2334
for c in
2335
tcp_server.clients.itervalues())
2336
3453
2337
@dbus.service.method(_interface,
3454
2338
out_signature="a{oa{sv}}")
3455
2339
def GetAllClientsWithProperties(self):
3456
2340
"D-Bus method"
3457
2341
return dbus.Dictionary(
3458
{c.dbus_object_path: c.GetAll(
3459
"se.recompile.Mandos.Client")
3460
for c in tcp_server.clients.values()},
2342
((c.dbus_object_path, c.GetAll(""))
2343
for c in tcp_server.clients.itervalues()),
3461
2344
signature="oa{sv}")
3462
2345
3463
2346
@dbus.service.method(_interface, in_signature="o")
3464
2347
def RemoveClient(self, object_path):
3465
2348
"D-Bus method"
3466
for c in tcp_server.clients.values():
2349
for c in tcp_server.clients.itervalues():
3467
2350
if c.dbus_object_path == object_path:
3468
2351
del tcp_server.clients[c.name]
3469
2352
c.remove_from_connection()
3470
# Don't signal the disabling
2353
# Don't signal anything except ClientRemoved
3471
2354
c.disable(quiet=True)
3472
# Emit D-Bus signal for removal
3473
self.client_removed_signal(c)
2355
# Emit D-Bus signal
2356
self.ClientRemoved(object_path, c.name)
3474
2357
return
3475
2358
raise KeyError(object_path)
3476
2359
3477
2360
del _interface
3478
3479
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3480
out_signature="a{oa{sa{sv}}}")
3481
def GetManagedObjects(self):
3482
"""D-Bus method"""
3483
return dbus.Dictionary(
3484
{client.dbus_object_path:
3485
dbus.Dictionary(
3486
{interface: client.GetAll(interface)
3487
for interface in
3488
client._get_all_interface_names()})
3489
for client in tcp_server.clients.values()})
3490
3491
def client_added_signal(self, client):
3492
"""Send the new standard signal and the old signal"""
3493
if use_dbus:
3494
# New standard signal
3495
self.InterfacesAdded(
3496
client.dbus_object_path,
3497
dbus.Dictionary(
3498
{interface: client.GetAll(interface)
3499
for interface in
3500
client._get_all_interface_names()}))
3501
# Old signal
3502
self.ClientAdded(client.dbus_object_path)
3503
3504
def client_removed_signal(self, client):
3505
"""Send the new standard signal and the old signal"""
3506
if use_dbus:
3507
# New standard signal
3508
self.InterfacesRemoved(
3509
client.dbus_object_path,
3510
client._get_all_interface_names())
3511
# Old signal
3512
self.ClientRemoved(client.dbus_object_path,
3513
client.name)
3514
3515
mandos_dbus_service = MandosDBusService()
3516
3517
# Save modules to variables to exempt the modules from being
3518
# unloaded before the function registered with atexit() is run.
3519
mp = multiprocessing
3520
wn = wnull
3521
2361
2362
class MandosDBusServiceTransitional(MandosDBusService):
2363
__metaclass__ = AlternateDBusNamesMetaclass
2364
mandos_dbus_service = MandosDBusServiceTransitional()
2365
3522
2366
def cleanup():
3523
2367
"Cleanup function; run on exit"
3524
if zeroconf:
3525
service.cleanup()
3526
3527
mp.active_children()
3528
wn.close()
2368
service.cleanup()
2369
2370
multiprocessing.active_children()
3529
2371
if not (tcp_server.clients or client_settings):
3530
2372
return
3531
2373
3532
2374
# Store client before exiting. Secrets are encrypted with key
3533
2375
# based on what config file has. If config file is
3534
2376
# removed/edited, old secret will thus be unrecovable.
3535
2377
clients = {}
3536
2378
with PGPEngine() as pgp:
3537
for client in tcp_server.clients.values():
2379
for client in tcp_server.clients.itervalues():
3538
2380
key = client_settings[client.name]["secret"]
3539
2381
client.encrypted_secret = pgp.encrypt(client.secret,
3540
2382
key)
3541
2383
client_dict = {}
3542
2384
3543
2385
# A list of attributes that can not be pickled
3544
2386
# + secret.
3545
exclude = {"bus", "changedstate", "secret",
3546
"checker", "server_settings"}
3547
for name, typ in inspect.getmembers(dbus.service
3548
.Object):
2387
exclude = set(("bus", "changedstate", "secret",
2388
"checker"))
2389
for name, typ in (inspect.getmembers
2390
(dbus.service.Object)):
3549
2391
exclude.add(name)
3550
2392
3551
2393
client_dict["encrypted_secret"] = (client
3552
2394
.encrypted_secret)
3553
2395
for attr in client.client_structure:
3554
2396
if attr not in exclude:
3555
2397
client_dict[attr] = getattr(client, attr)
3556
2398
3557
2399
clients[client.name] = client_dict
3558
2400
del client_settings[client.name]["secret"]
3559
2401
3560
2402
try:
3561
with tempfile.NamedTemporaryFile(
3562
mode='wb',
3563
suffix=".pickle",
3564
prefix='clients-',
3565
dir=os.path.dirname(stored_state_path),
3566
delete=False) as stored_state:
3567
pickle.dump((clients, client_settings), stored_state,
3568
protocol=2)
3569
tempname = stored_state.name
3570
os.rename(tempname, stored_state_path)
2403
with os.fdopen(os.open(stored_state_path,
2404
os.O_CREAT|os.O_WRONLY|os.O_TRUNC,
2405
0600), "wb") as stored_state:
2406
pickle.dump((clients, client_settings), stored_state)
3571
2407
except (IOError, OSError) as e:
3572
if not debug:
3573
try:
3574
os.remove(tempname)
3575
except NameError:
3576
pass
3577
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3578
logger.warning("Could not save persistent state: {}"
3579
.format(os.strerror(e.errno)))
3580
else:
3581
logger.warning("Could not save persistent state:",
3582
exc_info=e)
2408
logger.warning("Could not save persistent state: {0}"
2409
.format(e))
2410
if e.errno not in (errno.ENOENT, errno.EACCES):
3583
2411
raise
3584
2412
3585
2413
# Delete all clients, and settings from config
3586
2414
while tcp_server.clients:
3587
2415
name, client = tcp_server.clients.popitem()
3588
2416
if use_dbus:
3589
2417
client.remove_from_connection()
3590
# Don't signal the disabling
2418
# Don't signal anything except ClientRemoved
3591
2419
client.disable(quiet=True)
3592
# Emit D-Bus signal for removal
3593
2420
if use_dbus:
3594
mandos_dbus_service.client_removed_signal(client)
2421
# Emit D-Bus signal
2422
mandos_dbus_service.ClientRemoved(client
2423
.dbus_object_path,
2424
client.name)
3595
2425
client_settings.clear()
3596
2426
3597
2427
atexit.register(cleanup)
3598
3599
for client in tcp_server.clients.values():
2428
2429
for client in tcp_server.clients.itervalues():
3600
2430
if use_dbus:
3601
# Emit D-Bus signal for adding
3602
mandos_dbus_service.client_added_signal(client)
2431
# Emit D-Bus signal
2432
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3603
2433
# Need to initiate checking of clients
3604
2434
if client.enabled:
3605
2435
client.init_checker()
3606
2436
3607
2437
tcp_server.enable()
3608
2438
tcp_server.server_activate()
3609
2439
3610
2440
# Find out what port we got
3611
if zeroconf:
3612
service.port = tcp_server.socket.getsockname()[1]
2441
service.port = tcp_server.socket.getsockname()[1]
3613
2442
if use_ipv6:
3614
2443
logger.info("Now listening on address %r, port %d,"
3615
" flowinfo %d, scope_id %d",
3616
*tcp_server.socket.getsockname())
2444
" flowinfo %d, scope_id %d"
2445
% tcp_server.socket.getsockname())
3617
2446
else: # IPv4
3618
logger.info("Now listening on address %r, port %d",
3619
*tcp_server.socket.getsockname())
3620
3621
# service.interface = tcp_server.socket.getsockname()[3]
3622
2447
logger.info("Now listening on address %r, port %d"
2448
% tcp_server.socket.getsockname())
2449
2450
#service.interface = tcp_server.socket.getsockname()[3]
2451
3623
2452
try:
3624
if zeroconf:
3625
# From the Avahi example code
3626
try:
3627
service.activate()
3628
except dbus.exceptions.DBusException as error:
3629
logger.critical("D-Bus Exception", exc_info=error)
3630
cleanup()
3631
sys.exit(1)
3632
# End of Avahi example code
3633
3634
GLib.io_add_watch(
3635
GLib.IOChannel.unix_new(tcp_server.fileno()),
3636
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3637
lambda *args, **kwargs: (tcp_server.handle_request
3638
(*args[2:], **kwargs) or True))
3639
2453
# From the Avahi example code
2454
try:
2455
service.activate()
2456
except dbus.exceptions.DBusException as error:
2457
logger.critical("DBusException: %s", error)
2458
cleanup()
2459
sys.exit(1)
2460
# End of Avahi example code
2461
2462
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2463
lambda *args, **kwargs:
2464
(tcp_server.handle_request
2465
(*args[2:], **kwargs) or True))
2466
3640
2467
logger.debug("Starting main loop")
3641
2468
main_loop.run()
3642
2469
except AvahiError as error:
3643
logger.critical("Avahi Error", exc_info=error)
2470
logger.critical("AvahiError: %s", error)
3644
2471
cleanup()
3645
2472
sys.exit(1)
3646
2473
except KeyboardInterrupt:
3651
2478
# Must run before the D-Bus bus name gets deregistered
3652
2479
cleanup()
3653
2480
3654
3655
def should_only_run_tests():
3656
parser = argparse.ArgumentParser(add_help=False)
3657
parser.add_argument("--check", action='store_true')
3658
args, unknown_args = parser.parse_known_args()
3659
run_tests = args.check
3660
if run_tests:
3661
# Remove --check argument from sys.argv
3662
sys.argv[1:] = unknown_args
3663
return run_tests
3664
3665
# Add all tests from doctest strings
3666
def load_tests(loader, tests, none):
3667
import doctest
3668
tests.addTests(doctest.DocTestSuite())
3669
return tests
3670
3671
2481
if __name__ == '__main__':
3672
try:
3673
if should_only_run_tests():
3674
# Call using ./mandos --check [--verbose]
3675
unittest.main()
3676
else:
3677
main()
3678
finally:
3679
logging.shutdown()
2482
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0