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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 © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 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
68
82
69
import dbus
83
70
import dbus.service
84
import gi
85
from gi.repository import GLib
71
import gobject
72
import avahi
86
73
from dbus.mainloop.glib import DBusGMainLoop
87
74
import ctypes
88
75
import ctypes.util
89
76
import xml.dom.minidom
90
77
import inspect
91
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
str = unicode
95
96
# Show warnings by default
97
if not sys.warnoptions:
98
import warnings
99
warnings.simplefilter("default")
100
101
# Try to find the value of SO_BINDTODEVICE:
78
import GnuPGInterface
79
102
80
try:
103
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
104
# newer, and it is also the most natural place for it:
105
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
106
82
except AttributeError:
107
83
try:
108
# This is where SO_BINDTODEVICE was up to and including Python
109
# 2.6, and also 3.2:
110
84
from IN import SO_BINDTODEVICE
111
85
except ImportError:
112
# In Python 2.7 it seems to have been removed entirely.
113
# Try running the C preprocessor:
114
try:
115
cc = subprocess.Popen(["cc", "--language=c", "-E",
116
"/dev/stdin"],
117
stdin=subprocess.PIPE,
118
stdout=subprocess.PIPE)
119
stdout = cc.communicate(
120
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
121
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
122
except (OSError, ValueError, IndexError):
123
# No value found
124
SO_BINDTODEVICE = None
125
126
if sys.version_info < (3, 2):
127
configparser.Configparser = configparser.SafeConfigParser
128
129
version = "1.8.9"
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
130
89
stored_state_file = "clients.pickle"
131
90
132
91
logger = logging.getLogger()
133
logging.captureWarnings(True) # Show warnings via the logging system
134
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
135
95
136
96
try:
137
if_nametoindex = ctypes.cdll.LoadLibrary(
138
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
139
100
except (OSError, AttributeError):
140
141
101
def if_nametoindex(interface):
142
102
"Get an interface index the hard way, i.e. using fcntl()"
143
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
144
104
with contextlib.closing(socket.socket()) as s:
145
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
146
struct.pack(b"16s16x", interface))
147
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]
148
110
return interface_index
149
111
150
112
151
def copy_function(func):
152
"""Make a copy of a function"""
153
if sys.version_info.major == 2:
154
return types.FunctionType(func.func_code,
155
func.func_globals,
156
func.func_name,
157
func.func_defaults,
158
func.func_closure)
159
else:
160
return types.FunctionType(func.__code__,
161
func.__globals__,
162
func.__name__,
163
func.__defaults__,
164
func.__closure__)
165
166
167
def initlogger(debug, level=logging.WARNING):
113
def initlogger(level=logging.WARNING):
168
114
"""init logger and add loglevel"""
169
170
global syslogger
171
syslogger = (logging.handlers.SysLogHandler(
172
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
173
address="/dev/log"))
115
174
116
syslogger.setFormatter(logging.Formatter
175
117
('Mandos [%(process)d]: %(levelname)s:'
176
118
' %(message)s'))
177
119
logger.addHandler(syslogger)
178
179
if debug:
180
console = logging.StreamHandler()
181
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
182
' [%(process)d]:'
183
' %(levelname)s:'
184
' %(message)s'))
185
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)
186
127
logger.setLevel(level)
187
128
188
129
191
132
pass
192
133
193
134
194
class PGPEngine:
135
class PGPEngine(object):
195
136
"""A simple class for OpenPGP symmetric encryption & decryption"""
196
197
137
def __init__(self):
138
self.gnupg = GnuPGInterface.GnuPG()
198
139
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
199
self.gpg = "gpg"
200
try:
201
output = subprocess.check_output(["gpgconf"])
202
for line in output.splitlines():
203
name, text, path = line.split(b":")
204
if name == b"gpg":
205
self.gpg = path
206
break
207
except OSError as e:
208
if e.errno != errno.ENOENT:
209
raise
210
self.gnupgargs = ['--batch',
211
'--homedir', self.tempdir,
212
'--force-mdc',
213
'--quiet']
214
# Only GPG version 1 has the --no-use-agent option.
215
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
216
self.gnupgargs.append("--no-use-agent")
217
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
218
146
def __enter__(self):
219
147
return self
220
221
def __exit__(self, exc_type, exc_value, traceback):
148
149
def __exit__ (self, exc_type, exc_value, traceback):
222
150
self._cleanup()
223
151
return False
224
152
225
153
def __del__(self):
226
154
self._cleanup()
227
155
228
156
def _cleanup(self):
229
157
if self.tempdir is not None:
230
158
# Delete contents of tempdir
231
159
for root, dirs, files in os.walk(self.tempdir,
232
topdown=False):
160
topdown = False):
233
161
for filename in files:
234
162
os.remove(os.path.join(root, filename))
235
163
for dirname in dirs:
237
165
# Remove tempdir
238
166
os.rmdir(self.tempdir)
239
167
self.tempdir = None
240
168
241
169
def password_encode(self, password):
242
170
# Passphrase can not be empty and can not contain newlines or
243
171
# NUL bytes. So we prefix it and hex encode it.
244
encoded = b"mandos" + binascii.hexlify(password)
245
if len(encoded) > 2048:
246
# GnuPG can't handle long passwords, so encode differently
247
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
248
.replace(b"\n", b"\\n")
249
.replace(b"\0", b"\\x00"))
250
return encoded
251
172
return b"mandos" + binascii.hexlify(password)
173
252
174
def encrypt(self, data, password):
253
passphrase = self.password_encode(password)
254
with tempfile.NamedTemporaryFile(
255
dir=self.tempdir) as passfile:
256
passfile.write(passphrase)
257
passfile.flush()
258
proc = subprocess.Popen([self.gpg, '--symmetric',
259
'--passphrase-file',
260
passfile.name]
261
+ self.gnupgargs,
262
stdin=subprocess.PIPE,
263
stdout=subprocess.PIPE,
264
stderr=subprocess.PIPE)
265
ciphertext, err = proc.communicate(input=data)
266
if proc.returncode != 0:
267
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
268
189
return ciphertext
269
190
270
191
def decrypt(self, data, password):
271
passphrase = self.password_encode(password)
272
with tempfile.NamedTemporaryFile(
273
dir=self.tempdir) as passfile:
274
passfile.write(passphrase)
275
passfile.flush()
276
proc = subprocess.Popen([self.gpg, '--decrypt',
277
'--passphrase-file',
278
passfile.name]
279
+ self.gnupgargs,
280
stdin=subprocess.PIPE,
281
stdout=subprocess.PIPE,
282
stderr=subprocess.PIPE)
283
decrypted_plaintext, err = proc.communicate(input=data)
284
if proc.returncode != 0:
285
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
286
206
return decrypted_plaintext
287
207
288
208
289
# Pretend that we have an Avahi module
290
class avahi:
291
"""This isn't so much a class as it is a module-like namespace."""
292
IF_UNSPEC = -1 # avahi-common/address.h
293
PROTO_UNSPEC = -1 # avahi-common/address.h
294
PROTO_INET = 0 # avahi-common/address.h
295
PROTO_INET6 = 1 # avahi-common/address.h
296
DBUS_NAME = "org.freedesktop.Avahi"
297
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
298
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
299
DBUS_PATH_SERVER = "/"
300
301
@staticmethod
302
def string_array_to_txt_array(t):
303
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
304
for s in t), signature="ay")
305
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
306
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
307
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
308
SERVER_INVALID = 0 # avahi-common/defs.h
309
SERVER_REGISTERING = 1 # avahi-common/defs.h
310
SERVER_RUNNING = 2 # avahi-common/defs.h
311
SERVER_COLLISION = 3 # avahi-common/defs.h
312
SERVER_FAILURE = 4 # avahi-common/defs.h
313
314
209
315
210
class AvahiError(Exception):
316
211
def __init__(self, value, *args, **kwargs):
317
212
self.value = value
318
return super(AvahiError, self).__init__(value, *args,
319
**kwargs)
320
213
super(AvahiError, self).__init__(value, *args, **kwargs)
214
def __unicode__(self):
215
return unicode(repr(self.value))
321
216
322
217
class AvahiServiceError(AvahiError):
323
218
pass
324
219
325
326
220
class AvahiGroupError(AvahiError):
327
221
pass
328
222
329
223
330
class AvahiService:
224
class AvahiService(object):
331
225
"""An Avahi (Zeroconf) service.
332
226
333
227
Attributes:
334
228
interface: integer; avahi.IF_UNSPEC or an interface index.
335
229
Used to optionally bind to the specified interface.
336
230
name: string; Example: 'Mandos'
337
231
type: string; Example: '_mandos._tcp'.
338
See <https://www.iana.org/assignments/service-names-port-numbers>
232
See <http://www.dns-sd.org/ServiceTypes.html>
339
233
port: integer; what port to announce
340
234
TXT: list of strings; TXT record for the service
341
235
domain: string; Domain to publish on, default to .local if empty.
347
241
server: D-Bus Server
348
242
bus: dbus.SystemBus()
349
243
"""
350
351
def __init__(self,
352
interface=avahi.IF_UNSPEC,
353
name=None,
354
servicetype=None,
355
port=None,
356
TXT=None,
357
domain="",
358
host="",
359
max_renames=32768,
360
protocol=avahi.PROTO_UNSPEC,
361
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):
362
248
self.interface = interface
363
249
self.name = name
364
250
self.type = servicetype
373
259
self.server = None
374
260
self.bus = bus
375
261
self.entry_group_state_changed_match = None
376
377
def rename(self, remove=True):
262
def rename(self):
378
263
"""Derived from the Avahi example code"""
379
264
if self.rename_count >= self.max_renames:
380
265
logger.critical("No suitable Zeroconf service name found"
381
266
" after %i retries, exiting.",
382
267
self.rename_count)
383
268
raise AvahiServiceError("Too many renames")
384
self.name = str(
385
self.server.GetAlternativeServiceName(self.name))
386
self.rename_count += 1
269
self.name = unicode(self.server
270
.GetAlternativeServiceName(self.name))
387
271
logger.info("Changing Zeroconf service name to %r ...",
388
272
self.name)
389
if remove:
390
self.remove()
273
self.remove()
391
274
try:
392
275
self.add()
393
276
except dbus.exceptions.DBusException as error:
394
if (error.get_dbus_name()
395
== "org.freedesktop.Avahi.CollisionError"):
396
logger.info("Local Zeroconf service name collision.")
397
return self.rename(remove=False)
398
else:
399
logger.critical("D-Bus Exception", exc_info=error)
400
self.cleanup()
401
os._exit(1)
402
277
logger.critical("DBusException: %s", error)
278
self.cleanup()
279
os._exit(1)
280
self.rename_count += 1
403
281
def remove(self):
404
282
"""Derived from the Avahi example code"""
405
283
if self.entry_group_state_changed_match is not None:
407
285
self.entry_group_state_changed_match = None
408
286
if self.group is not None:
409
287
self.group.Reset()
410
411
288
def add(self):
412
289
"""Derived from the Avahi example code"""
413
290
self.remove()
430
307
dbus.UInt16(self.port),
431
308
avahi.string_array_to_txt_array(self.TXT))
432
309
self.group.Commit()
433
434
310
def entry_group_state_changed(self, state, error):
435
311
"""Derived from the Avahi example code"""
436
312
logger.debug("Avahi entry group state change: %i", state)
437
313
438
314
if state == avahi.ENTRY_GROUP_ESTABLISHED:
439
315
logger.debug("Zeroconf service established.")
440
316
elif state == avahi.ENTRY_GROUP_COLLISION:
442
318
self.rename()
443
319
elif state == avahi.ENTRY_GROUP_FAILURE:
444
320
logger.critical("Avahi: Error in group state changed %s",
445
str(error))
446
raise AvahiGroupError("State changed: {!s}".format(error))
447
321
unicode(error))
322
raise AvahiGroupError("State changed: %s"
323
% unicode(error))
448
324
def cleanup(self):
449
325
"""Derived from the Avahi example code"""
450
326
if self.group is not None:
455
331
pass
456
332
self.group = None
457
333
self.remove()
458
459
334
def server_state_changed(self, state, error=None):
460
335
"""Derived from the Avahi example code"""
461
336
logger.debug("Avahi server state change: %i", state)
462
bad_states = {
463
avahi.SERVER_INVALID: "Zeroconf server invalid",
464
avahi.SERVER_REGISTERING: None,
465
avahi.SERVER_COLLISION: "Zeroconf server name collision",
466
avahi.SERVER_FAILURE: "Zeroconf server failure",
467
}
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" }
468
344
if state in bad_states:
469
345
if bad_states[state] is not None:
470
346
if error is None:
473
349
logger.error(bad_states[state] + ": %r", error)
474
350
self.cleanup()
475
351
elif state == avahi.SERVER_RUNNING:
476
try:
477
self.add()
478
except dbus.exceptions.DBusException as error:
479
if (error.get_dbus_name()
480
== "org.freedesktop.Avahi.CollisionError"):
481
logger.info("Local Zeroconf service name"
482
" collision.")
483
return self.rename(remove=False)
484
else:
485
logger.critical("D-Bus Exception", exc_info=error)
486
self.cleanup()
487
os._exit(1)
352
self.add()
488
353
else:
489
354
if error is None:
490
355
logger.debug("Unknown state: %r", state)
491
356
else:
492
357
logger.debug("Unknown state: %r: %r", state, error)
493
494
358
def activate(self):
495
359
"""Derived from the Avahi example code"""
496
360
if self.server is None:
500
364
follow_name_owner_changes=True),
501
365
avahi.DBUS_INTERFACE_SERVER)
502
366
self.server.connect_to_signal("StateChanged",
503
self.server_state_changed)
367
self.server_state_changed)
504
368
self.server_state_changed(self.server.GetState())
505
369
506
507
370
class AvahiServiceToSyslog(AvahiService):
508
def rename(self, *args, **kwargs):
371
def rename(self):
509
372
"""Add the new name to the syslog messages"""
510
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
511
syslogger.setFormatter(logging.Formatter(
512
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
513
.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))
514
378
return ret
515
379
516
517
# Pretend that we have a GnuTLS module
518
class gnutls:
519
"""This isn't so much a class as it is a module-like namespace."""
520
521
library = ctypes.util.find_library("gnutls")
522
if library is None:
523
library = ctypes.util.find_library("gnutls-deb0")
524
_library = ctypes.cdll.LoadLibrary(library)
525
del library
526
527
# Unless otherwise indicated, the constants and types below are
528
# all from the gnutls/gnutls.h C header file.
529
530
# Constants
531
E_SUCCESS = 0
532
E_INTERRUPTED = -52
533
E_AGAIN = -28
534
CRT_OPENPGP = 2
535
CRT_RAWPK = 3
536
CLIENT = 2
537
SHUT_RDWR = 0
538
CRD_CERTIFICATE = 1
539
E_NO_CERTIFICATE_FOUND = -49
540
X509_FMT_DER = 0
541
NO_TICKETS = 1<<10
542
ENABLE_RAWPK = 1<<18
543
CTYPE_PEERS = 3
544
KEYID_USE_SHA256 = 1 # gnutls/x509.h
545
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
546
547
# Types
548
class session_int(ctypes.Structure):
549
_fields_ = []
550
session_t = ctypes.POINTER(session_int)
551
552
class certificate_credentials_st(ctypes.Structure):
553
_fields_ = []
554
certificate_credentials_t = ctypes.POINTER(
555
certificate_credentials_st)
556
certificate_type_t = ctypes.c_int
557
558
class datum_t(ctypes.Structure):
559
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
560
('size', ctypes.c_uint)]
561
562
class openpgp_crt_int(ctypes.Structure):
563
_fields_ = []
564
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
565
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
566
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
567
credentials_type_t = ctypes.c_int
568
transport_ptr_t = ctypes.c_void_p
569
close_request_t = ctypes.c_int
570
571
# Exceptions
572
class Error(Exception):
573
def __init__(self, message=None, code=None, args=()):
574
# Default usage is by a message string, but if a return
575
# code is passed, convert it to a string with
576
# gnutls.strerror()
577
self.code = code
578
if message is None and code is not None:
579
message = gnutls.strerror(code)
580
return super(gnutls.Error, self).__init__(
581
message, *args)
582
583
class CertificateSecurityError(Error):
584
pass
585
586
# Classes
587
class Credentials:
588
def __init__(self):
589
self._c_object = gnutls.certificate_credentials_t()
590
gnutls.certificate_allocate_credentials(
591
ctypes.byref(self._c_object))
592
self.type = gnutls.CRD_CERTIFICATE
593
594
def __del__(self):
595
gnutls.certificate_free_credentials(self._c_object)
596
597
class ClientSession:
598
def __init__(self, socket, credentials=None):
599
self._c_object = gnutls.session_t()
600
gnutls_flags = gnutls.CLIENT
601
if gnutls.check_version(b"3.5.6"):
602
gnutls_flags |= gnutls.NO_TICKETS
603
if gnutls.has_rawpk:
604
gnutls_flags |= gnutls.ENABLE_RAWPK
605
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
606
del gnutls_flags
607
gnutls.set_default_priority(self._c_object)
608
gnutls.transport_set_ptr(self._c_object, socket.fileno())
609
gnutls.handshake_set_private_extensions(self._c_object,
610
True)
611
self.socket = socket
612
if credentials is None:
613
credentials = gnutls.Credentials()
614
gnutls.credentials_set(self._c_object, credentials.type,
615
ctypes.cast(credentials._c_object,
616
ctypes.c_void_p))
617
self.credentials = credentials
618
619
def __del__(self):
620
gnutls.deinit(self._c_object)
621
622
def handshake(self):
623
return gnutls.handshake(self._c_object)
624
625
def send(self, data):
626
data = bytes(data)
627
data_len = len(data)
628
while data_len > 0:
629
data_len -= gnutls.record_send(self._c_object,
630
data[-data_len:],
631
data_len)
632
633
def bye(self):
634
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
635
636
# Error handling functions
637
def _error_code(result):
638
"""A function to raise exceptions on errors, suitable
639
for the 'restype' attribute on ctypes functions"""
640
if result >= 0:
641
return result
642
if result == gnutls.E_NO_CERTIFICATE_FOUND:
643
raise gnutls.CertificateSecurityError(code=result)
644
raise gnutls.Error(code=result)
645
646
def _retry_on_error(result, func, arguments):
647
"""A function to retry on some errors, suitable
648
for the 'errcheck' attribute on ctypes functions"""
649
while result < 0:
650
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
651
return _error_code(result)
652
result = func(*arguments)
653
return result
654
655
# Unless otherwise indicated, the function declarations below are
656
# all from the gnutls/gnutls.h C header file.
657
658
# Functions
659
priority_set_direct = _library.gnutls_priority_set_direct
660
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
661
ctypes.POINTER(ctypes.c_char_p)]
662
priority_set_direct.restype = _error_code
663
664
init = _library.gnutls_init
665
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
666
init.restype = _error_code
667
668
set_default_priority = _library.gnutls_set_default_priority
669
set_default_priority.argtypes = [session_t]
670
set_default_priority.restype = _error_code
671
672
record_send = _library.gnutls_record_send
673
record_send.argtypes = [session_t, ctypes.c_void_p,
674
ctypes.c_size_t]
675
record_send.restype = ctypes.c_ssize_t
676
record_send.errcheck = _retry_on_error
677
678
certificate_allocate_credentials = (
679
_library.gnutls_certificate_allocate_credentials)
680
certificate_allocate_credentials.argtypes = [
681
ctypes.POINTER(certificate_credentials_t)]
682
certificate_allocate_credentials.restype = _error_code
683
684
certificate_free_credentials = (
685
_library.gnutls_certificate_free_credentials)
686
certificate_free_credentials.argtypes = [
687
certificate_credentials_t]
688
certificate_free_credentials.restype = None
689
690
handshake_set_private_extensions = (
691
_library.gnutls_handshake_set_private_extensions)
692
handshake_set_private_extensions.argtypes = [session_t,
693
ctypes.c_int]
694
handshake_set_private_extensions.restype = None
695
696
credentials_set = _library.gnutls_credentials_set
697
credentials_set.argtypes = [session_t, credentials_type_t,
698
ctypes.c_void_p]
699
credentials_set.restype = _error_code
700
701
strerror = _library.gnutls_strerror
702
strerror.argtypes = [ctypes.c_int]
703
strerror.restype = ctypes.c_char_p
704
705
certificate_type_get = _library.gnutls_certificate_type_get
706
certificate_type_get.argtypes = [session_t]
707
certificate_type_get.restype = _error_code
708
709
certificate_get_peers = _library.gnutls_certificate_get_peers
710
certificate_get_peers.argtypes = [session_t,
711
ctypes.POINTER(ctypes.c_uint)]
712
certificate_get_peers.restype = ctypes.POINTER(datum_t)
713
714
global_set_log_level = _library.gnutls_global_set_log_level
715
global_set_log_level.argtypes = [ctypes.c_int]
716
global_set_log_level.restype = None
717
718
global_set_log_function = _library.gnutls_global_set_log_function
719
global_set_log_function.argtypes = [log_func]
720
global_set_log_function.restype = None
721
722
deinit = _library.gnutls_deinit
723
deinit.argtypes = [session_t]
724
deinit.restype = None
725
726
handshake = _library.gnutls_handshake
727
handshake.argtypes = [session_t]
728
handshake.restype = _error_code
729
handshake.errcheck = _retry_on_error
730
731
transport_set_ptr = _library.gnutls_transport_set_ptr
732
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
733
transport_set_ptr.restype = None
734
735
bye = _library.gnutls_bye
736
bye.argtypes = [session_t, close_request_t]
737
bye.restype = _error_code
738
bye.errcheck = _retry_on_error
739
740
check_version = _library.gnutls_check_version
741
check_version.argtypes = [ctypes.c_char_p]
742
check_version.restype = ctypes.c_char_p
743
744
_need_version = b"3.3.0"
745
if check_version(_need_version) is None:
746
raise self.Error("Needs GnuTLS {} or later"
747
.format(_need_version))
748
749
_tls_rawpk_version = b"3.6.6"
750
has_rawpk = bool(check_version(_tls_rawpk_version))
751
752
if has_rawpk:
753
# Types
754
class pubkey_st(ctypes.Structure):
755
_fields = []
756
pubkey_t = ctypes.POINTER(pubkey_st)
757
758
x509_crt_fmt_t = ctypes.c_int
759
760
# All the function declarations below are from gnutls/abstract.h
761
pubkey_init = _library.gnutls_pubkey_init
762
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
763
pubkey_init.restype = _error_code
764
765
pubkey_import = _library.gnutls_pubkey_import
766
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
767
x509_crt_fmt_t]
768
pubkey_import.restype = _error_code
769
770
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
771
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
772
ctypes.POINTER(ctypes.c_ubyte),
773
ctypes.POINTER(ctypes.c_size_t)]
774
pubkey_get_key_id.restype = _error_code
775
776
pubkey_deinit = _library.gnutls_pubkey_deinit
777
pubkey_deinit.argtypes = [pubkey_t]
778
pubkey_deinit.restype = None
779
else:
780
# All the function declarations below are from gnutls/openpgp.h
781
782
openpgp_crt_init = _library.gnutls_openpgp_crt_init
783
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
784
openpgp_crt_init.restype = _error_code
785
786
openpgp_crt_import = _library.gnutls_openpgp_crt_import
787
openpgp_crt_import.argtypes = [openpgp_crt_t,
788
ctypes.POINTER(datum_t),
789
openpgp_crt_fmt_t]
790
openpgp_crt_import.restype = _error_code
791
792
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
793
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
794
ctypes.POINTER(ctypes.c_uint)]
795
openpgp_crt_verify_self.restype = _error_code
796
797
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
798
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
799
openpgp_crt_deinit.restype = None
800
801
openpgp_crt_get_fingerprint = (
802
_library.gnutls_openpgp_crt_get_fingerprint)
803
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
804
ctypes.c_void_p,
805
ctypes.POINTER(
806
ctypes.c_size_t)]
807
openpgp_crt_get_fingerprint.restype = _error_code
808
809
if check_version(b"3.6.4"):
810
certificate_type_get2 = _library.gnutls_certificate_type_get2
811
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
812
certificate_type_get2.restype = _error_code
813
814
# Remove non-public functions
815
del _error_code, _retry_on_error
816
817
818
def call_pipe(connection, # : multiprocessing.Connection
819
func, *args, **kwargs):
820
"""This function is meant to be called by multiprocessing.Process
821
822
This function runs func(*args, **kwargs), and writes the resulting
823
return value on the provided multiprocessing.Connection.
824
"""
825
connection.send(func(*args, **kwargs))
826
connection.close()
827
828
829
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):
830
387
"""A representation of a client host served by this server.
831
388
832
389
Attributes:
833
390
approved: bool(); 'None' if not yet approved/disapproved
834
391
approval_delay: datetime.timedelta(); Time to wait for approval
835
392
approval_duration: datetime.timedelta(); Duration of one approval
836
checker: multiprocessing.Process(); a running checker process used
837
to see if the client lives. 'None' if no process is
838
running.
839
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
840
397
checker_command: string; External command which is run to check
841
398
if client lives. %() expansions are done at
842
399
runtime with vars(self) as dict, so that for
843
400
instance %(name)s can be used in the command.
844
checker_initiator_tag: a GLib event source tag, or None
401
checker_initiator_tag: a gobject event source tag, or None
845
402
created: datetime.datetime(); (UTC) object creation
846
403
client_structure: Object describing what attributes a client has
847
404
and is used for storing the client at exit
848
405
current_checker_command: string; current running checker_command
849
disable_initiator_tag: a GLib event source tag, or None
406
disable_initiator_tag: a gobject event source tag, or None
850
407
enabled: bool()
851
408
fingerprint: string (40 or 32 hexadecimal digits); used to
852
uniquely identify an OpenPGP client
853
key_id: string (64 hexadecimal digits); used to uniquely identify
854
a client using raw public keys
409
uniquely identify the client
855
410
host: string; available for use by the checker command
856
411
interval: datetime.timedelta(); How often to start a new checker
857
412
last_approval_request: datetime.datetime(); (UTC) or None
858
413
last_checked_ok: datetime.datetime(); (UTC) or None
859
414
last_checker_status: integer between 0 and 255 reflecting exit
860
415
status of last checker. -1 reflects crashed
861
checker, -2 means no checker completed yet.
862
last_checker_signal: The signal which killed the last checker, if
863
last_checker_status is -1
416
checker, or None.
864
417
last_enabled: datetime.datetime(); (UTC) or None
865
418
name: string; from the config file, used in log messages and
866
419
D-Bus identifiers
867
420
secret: bytestring; sent verbatim (over TLS) to client
868
421
timeout: datetime.timedelta(); How long from last_checked_ok
869
422
until this client is disabled
870
extended_timeout: extra long timeout when secret has been sent
423
extended_timeout: extra long timeout when password has been sent
871
424
runtime_expansions: Allowed attributes for runtime expansion.
872
425
expires: datetime.datetime(); time (UTC) when a client will be
873
426
disabled, or None
874
server_settings: The server_settings dict from main()
875
427
"""
876
428
877
429
runtime_expansions = ("approval_delay", "approval_duration",
878
"created", "enabled", "expires", "key_id",
879
"fingerprint", "host", "interval",
880
"last_approval_request", "last_checked_ok",
430
"created", "enabled", "fingerprint",
431
"host", "interval", "last_checked_ok",
881
432
"last_enabled", "name", "timeout")
882
client_defaults = {
883
"timeout": "PT5M",
884
"extended_timeout": "PT15M",
885
"interval": "PT2M",
886
"checker": "fping -q -- %%(host)s",
887
"host": "",
888
"approval_delay": "PT0S",
889
"approval_duration": "PT1S",
890
"approved_by_default": "True",
891
"enabled": "True",
892
}
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)
893
458
894
459
@staticmethod
895
460
def config_parser(config):
896
"""Construct a new dict of client settings of this form:
461
""" Construct a new dict of client settings of this form:
897
462
{ client_name: {setting_name: value, ...}, ...}
898
with exceptions for any special settings as defined above.
899
NOTE: Must be a pure function. Must return the same result
900
value given the same arguments.
901
"""
463
with exceptions for any special settings as defined above"""
902
464
settings = {}
903
465
for client_name in config.sections():
904
466
section = dict(config.items(client_name))
905
467
client = settings[client_name] = {}
906
468
907
469
client["host"] = section["host"]
908
470
# Reformat values from string types to Python types
909
471
client["approved_by_default"] = config.getboolean(
910
472
client_name, "approved_by_default")
911
client["enabled"] = config.getboolean(client_name,
912
"enabled")
913
914
# Uppercase and remove spaces from key_id and fingerprint
915
# for later comparison purposes with return value from the
916
# key_id() and fingerprint() functions
917
client["key_id"] = (section.get("key_id", "").upper()
918
.replace(" ", ""))
473
client["enabled"] = config.getboolean(client_name, "enabled")
474
919
475
client["fingerprint"] = (section["fingerprint"].upper()
920
476
.replace(" ", ""))
921
477
if "secret" in section:
922
client["secret"] = codecs.decode(section["secret"]
923
.encode("utf-8"),
924
"base64")
478
client["secret"] = section["secret"].decode("base64")
925
479
elif "secfile" in section:
926
480
with open(os.path.expanduser(os.path.expandvars
927
481
(section["secfile"])),
928
482
"rb") as secfile:
929
483
client["secret"] = secfile.read()
930
484
else:
931
raise TypeError("No secret or secfile for section {}"
932
.format(section))
485
raise TypeError("No secret or secfile for section %s"
486
% section)
933
487
client["timeout"] = string_to_delta(section["timeout"])
934
488
client["extended_timeout"] = string_to_delta(
935
489
section["extended_timeout"])
941
495
client["checker_command"] = section["checker"]
942
496
client["last_approval_request"] = None
943
497
client["last_checked_ok"] = None
944
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
945
506
946
507
return settings
947
948
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."""
949
514
self.name = name
950
if server_settings is None:
951
server_settings = {}
952
self.server_settings = server_settings
953
515
# adding all client settings
954
for setting, value in settings.items():
516
for setting, value in settings.iteritems():
955
517
setattr(self, setting, value)
956
957
if self.enabled:
958
if not hasattr(self, "last_enabled"):
959
self.last_enabled = datetime.datetime.utcnow()
960
if not hasattr(self, "expires"):
961
self.expires = (datetime.datetime.utcnow()
962
+ self.timeout)
963
else:
964
self.last_enabled = None
965
self.expires = None
966
518
967
519
logger.debug("Creating client %r", self.name)
968
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
969
523
logger.debug(" Fingerprint: %s", self.fingerprint)
970
self.created = settings.get("created",
971
datetime.datetime.utcnow())
524
self.created = settings.get("created", datetime.datetime.utcnow())
972
525
973
526
# attributes specific for this server instance
974
527
self.checker = None
978
531
self.current_checker_command = None
979
532
self.approved = None
980
533
self.approvals_pending = 0
981
self.changedstate = multiprocessing_manager.Condition(
982
multiprocessing_manager.Lock())
983
self.client_structure = [attr
984
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()
985
539
if not attr.startswith("_")]
986
540
self.client_structure.append("client_structure")
987
988
for name, t in inspect.getmembers(
989
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)):
990
546
if not name.startswith("_"):
991
547
self.client_structure.append(name)
992
548
993
549
# Send notice to process children that client state has changed
994
550
def send_changedstate(self):
995
551
with self.changedstate:
996
552
self.changedstate.notify_all()
997
553
998
554
def enable(self):
999
555
"""Start this client's checker and timeout hooks"""
1000
556
if getattr(self, "enabled", False):
1001
557
# Already enabled
1002
558
return
559
self.send_changedstate()
1003
560
self.expires = datetime.datetime.utcnow() + self.timeout
1004
561
self.enabled = True
1005
562
self.last_enabled = datetime.datetime.utcnow()
1006
563
self.init_checker()
1007
self.send_changedstate()
1008
564
1009
565
def disable(self, quiet=True):
1010
566
"""Disable this client."""
1011
567
if not getattr(self, "enabled", False):
1012
568
return False
1013
569
if not quiet:
570
self.send_changedstate()
571
if not quiet:
1014
572
logger.info("Disabling client %s", self.name)
1015
if getattr(self, "disable_initiator_tag", None) is not None:
1016
GLib.source_remove(self.disable_initiator_tag)
573
if getattr(self, "disable_initiator_tag", False):
574
gobject.source_remove(self.disable_initiator_tag)
1017
575
self.disable_initiator_tag = None
1018
576
self.expires = None
1019
if getattr(self, "checker_initiator_tag", None) is not None:
1020
GLib.source_remove(self.checker_initiator_tag)
577
if getattr(self, "checker_initiator_tag", False):
578
gobject.source_remove(self.checker_initiator_tag)
1021
579
self.checker_initiator_tag = None
1022
580
self.stop_checker()
1023
581
self.enabled = False
1024
if not quiet:
1025
self.send_changedstate()
1026
# 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
1027
583
return False
1028
584
1029
585
def __del__(self):
1030
586
self.disable()
1031
587
1032
588
def init_checker(self):
1033
589
# Schedule a new checker to be started an 'interval' from now,
1034
590
# and every interval from then on.
1035
if self.checker_initiator_tag is not None:
1036
GLib.source_remove(self.checker_initiator_tag)
1037
self.checker_initiator_tag = GLib.timeout_add(
1038
int(self.interval.total_seconds() * 1000),
1039
self.start_checker)
591
self.checker_initiator_tag = (gobject.timeout_add
592
(self.interval_milliseconds(),
593
self.start_checker))
1040
594
# Schedule a disable() when 'timeout' has passed
1041
if self.disable_initiator_tag is not None:
1042
GLib.source_remove(self.disable_initiator_tag)
1043
self.disable_initiator_tag = GLib.timeout_add(
1044
int(self.timeout.total_seconds() * 1000), self.disable)
595
self.disable_initiator_tag = (gobject.timeout_add
596
(self.timeout_milliseconds(),
597
self.disable))
1045
598
# Also start a new checker *right now*.
1046
599
self.start_checker()
1047
1048
def checker_callback(self, source, condition, connection,
1049
command):
600
601
def checker_callback(self, pid, condition, command):
1050
602
"""The checker has completed, so take appropriate actions."""
1051
# Read return code from connection (see call_pipe)
1052
returncode = connection.recv()
1053
connection.close()
1054
if self.checker is not None:
1055
self.checker.join()
1056
603
self.checker_callback_tag = None
1057
604
self.checker = None
1058
1059
if returncode >= 0:
1060
self.last_checker_status = returncode
1061
self.last_checker_signal = None
605
if os.WIFEXITED(condition):
606
self.last_checker_status = os.WEXITSTATUS(condition)
1062
607
if self.last_checker_status == 0:
1063
608
logger.info("Checker for %(name)s succeeded",
1064
609
vars(self))
1065
610
self.checked_ok()
1066
611
else:
1067
logger.info("Checker for %(name)s failed", vars(self))
612
logger.info("Checker for %(name)s failed",
613
vars(self))
1068
614
else:
1069
615
self.last_checker_status = -1
1070
self.last_checker_signal = -returncode
1071
616
logger.warning("Checker for %(name)s crashed?",
1072
617
vars(self))
1073
return False
1074
1075
def checked_ok(self):
1076
"""Assert that the client has been seen, alive and well."""
1077
self.last_checked_ok = datetime.datetime.utcnow()
1078
self.last_checker_status = 0
1079
self.last_checker_signal = None
1080
self.bump_timeout()
1081
1082
def bump_timeout(self, timeout=None):
1083
"""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
"""
1084
625
if timeout is None:
1085
626
timeout = self.timeout
627
self.last_checked_ok = datetime.datetime.utcnow()
1086
628
if self.disable_initiator_tag is not None:
1087
GLib.source_remove(self.disable_initiator_tag)
1088
self.disable_initiator_tag = None
629
gobject.source_remove(self.disable_initiator_tag)
1089
630
if getattr(self, "enabled", False):
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(timeout.total_seconds() * 1000), self.disable)
631
self.disable_initiator_tag = (gobject.timeout_add
632
(timedelta_to_milliseconds
633
(timeout), self.disable))
1092
634
self.expires = datetime.datetime.utcnow() + timeout
1093
635
1094
636
def need_approval(self):
1095
637
self.last_approval_request = datetime.datetime.utcnow()
1096
638
1097
639
def start_checker(self):
1098
640
"""Start a new checker subprocess if one is not running.
1099
641
1100
642
If a checker already exists, leave it running and do
1101
643
nothing."""
1102
644
# The reason for not killing a running checker is that if we
1103
# did that, and if a checker (for some reason) started running
1104
# slowly and taking more than 'interval' time, then the client
1105
# would inevitably timeout, since no checker would get a
1106
# 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
1107
649
# checkers alone, the checker would have to take more time
1108
650
# than 'timeout' for the client to be disabled, which is as it
1109
651
# should be.
1110
1111
if self.checker is not None and not self.checker.is_alive():
1112
logger.warning("Checker was not alive; joining")
1113
self.checker.join()
1114
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)
1115
666
# Start a new checker if needed
1116
667
if self.checker is None:
1117
# Escape attributes for the shell
1118
escaped_attrs = {
1119
attr: re.escape(str(getattr(self, attr)))
1120
for attr in self.runtime_expansions}
1121
668
try:
1122
command = self.checker_command % escaped_attrs
1123
except TypeError as error:
1124
logger.error('Could not format string "%s"',
1125
self.checker_command,
1126
exc_info=error)
1127
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
1128
687
self.current_checker_command = command
1129
logger.info("Starting checker %r for %s", command,
1130
self.name)
1131
# We don't need to redirect stdout and stderr, since
1132
# in normal mode, that is already done by daemon(),
1133
# and in debug mode we don't want to. (Stdin is
1134
# always replaced by /dev/null.)
1135
# The exception is when not debugging but nevertheless
1136
# running in the foreground; use the previously
1137
# created wnull.
1138
popen_args = {"close_fds": True,
1139
"shell": True,
1140
"cwd": "/"}
1141
if (not self.server_settings["debug"]
1142
and self.server_settings["foreground"]):
1143
popen_args.update({"stdout": wnull,
1144
"stderr": wnull})
1145
pipe = multiprocessing.Pipe(duplex=False)
1146
self.checker = multiprocessing.Process(
1147
target=call_pipe,
1148
args=(pipe[1], subprocess.call, command),
1149
kwargs=popen_args)
1150
self.checker.start()
1151
self.checker_callback_tag = GLib.io_add_watch(
1152
GLib.IOChannel.unix_new(pipe[0].fileno()),
1153
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1154
self.checker_callback, pipe[0], command)
1155
# 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
1156
712
return True
1157
713
1158
714
def stop_checker(self):
1159
715
"""Force the checker process, if any, to stop."""
1160
716
if self.checker_callback_tag:
1161
GLib.source_remove(self.checker_callback_tag)
717
gobject.source_remove(self.checker_callback_tag)
1162
718
self.checker_callback_tag = None
1163
719
if getattr(self, "checker", None) is None:
1164
720
return
1165
721
logger.debug("Stopping checker for %(name)s", vars(self))
1166
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
1167
730
self.checker = None
1168
731
1169
732
1170
def dbus_service_property(dbus_interface,
1171
signature="v",
1172
access="readwrite",
1173
byte_arrays=False):
733
def dbus_service_property(dbus_interface, signature="v",
734
access="readwrite", byte_arrays=False):
1174
735
"""Decorators for marking methods of a DBusObjectWithProperties to
1175
736
become properties on the D-Bus.
1176
737
1177
738
The decorated method will be called with no arguments by "Get"
1178
739
and with one argument by "Set".
1179
740
1180
741
The parameters, where they are supported, are the same as
1181
742
dbus.service.method, except there is only "signature", since the
1182
743
type from Get() and the type sent to Set() is the same.
1185
746
# "Set" method, so we fail early here:
1186
747
if byte_arrays and signature != "ay":
1187
748
raise ValueError("Byte arrays not supported for non-'ay'"
1188
" signature {!r}".format(signature))
1189
749
" signature %r" % signature)
1190
750
def decorator(func):
1191
751
func._dbus_is_property = True
1192
752
func._dbus_interface = dbus_interface
1195
755
func._dbus_name = func.__name__
1196
756
if func._dbus_name.endswith("_dbus_property"):
1197
757
func._dbus_name = func._dbus_name[:-14]
1198
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1199
return func
1200
1201
return decorator
1202
1203
1204
def dbus_interface_annotations(dbus_interface):
1205
"""Decorator for marking functions returning interface annotations
1206
1207
Usage:
1208
1209
@dbus_interface_annotations("org.example.Interface")
1210
def _foo(self): # Function name does not matter
1211
return {"org.freedesktop.DBus.Deprecated": "true",
1212
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1213
"false"}
1214
"""
1215
1216
def decorator(func):
1217
func._dbus_is_interface = True
1218
func._dbus_interface = dbus_interface
1219
func._dbus_name = dbus_interface
1220
return func
1221
1222
return decorator
1223
1224
1225
def dbus_annotations(annotations):
1226
"""Decorator to annotate D-Bus methods, signals or properties
1227
Usage:
1228
1229
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property."
1231
"EmitsChangedSignal": "false"})
1232
@dbus_service_property("org.example.Interface", signature="b",
1233
access="r")
1234
def Property_dbus_property(self):
1235
return dbus.Boolean(False)
1236
1237
See also the DBusObjectWithAnnotations class.
1238
"""
1239
1240
def decorator(func):
1241
func._dbus_annotations = annotations
1242
return func
1243
758
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
759
return func
1244
760
return decorator
1245
761
1246
762
1247
763
class DBusPropertyException(dbus.exceptions.DBusException):
1248
764
"""A base class for D-Bus property-related exceptions
1249
765
"""
1250
pass
766
def __unicode__(self):
767
return unicode(str(self))
1251
768
1252
769
1253
770
class DBusPropertyAccessException(DBusPropertyException):
1262
779
pass
1263
780
1264
781
1265
class DBusObjectWithAnnotations(dbus.service.Object):
1266
"""A D-Bus object with annotations.
1267
1268
Classes inheriting from this can use the dbus_annotations
1269
decorator to add annotations to methods or signals.
1270
"""
1271
1272
@staticmethod
1273
def _is_dbus_thing(thing):
1274
"""Returns a function testing if an attribute is a D-Bus thing
1275
1276
If called like _is_dbus_thing("method") it returns a function
1277
suitable for use as predicate to inspect.getmembers().
1278
"""
1279
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1280
False)
1281
1282
def _get_all_dbus_things(self, thing):
1283
"""Returns a generator of (name, attribute) pairs
1284
"""
1285
return ((getattr(athing.__get__(self), "_dbus_name", name),
1286
athing.__get__(self))
1287
for cls in self.__class__.__mro__
1288
for name, athing in
1289
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1290
1291
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1292
out_signature="s",
1293
path_keyword='object_path',
1294
connection_keyword='connection')
1295
def Introspect(self, object_path, connection):
1296
"""Overloading of standard D-Bus method.
1297
1298
Inserts annotation tags on methods and signals.
1299
"""
1300
xmlstring = dbus.service.Object.Introspect(self, object_path,
1301
connection)
1302
try:
1303
document = xml.dom.minidom.parseString(xmlstring)
1304
1305
for if_tag in document.getElementsByTagName("interface"):
1306
# Add annotation tags
1307
for typ in ("method", "signal"):
1308
for tag in if_tag.getElementsByTagName(typ):
1309
annots = dict()
1310
for name, prop in (self.
1311
_get_all_dbus_things(typ)):
1312
if (name == tag.getAttribute("name")
1313
and prop._dbus_interface
1314
== if_tag.getAttribute("name")):
1315
annots.update(getattr(
1316
prop, "_dbus_annotations", {}))
1317
for name, value in annots.items():
1318
ann_tag = document.createElement(
1319
"annotation")
1320
ann_tag.setAttribute("name", name)
1321
ann_tag.setAttribute("value", value)
1322
tag.appendChild(ann_tag)
1323
# Add interface annotation tags
1324
for annotation, value in dict(
1325
itertools.chain.from_iterable(
1326
annotations().items()
1327
for name, annotations
1328
in self._get_all_dbus_things("interface")
1329
if name == if_tag.getAttribute("name")
1330
)).items():
1331
ann_tag = document.createElement("annotation")
1332
ann_tag.setAttribute("name", annotation)
1333
ann_tag.setAttribute("value", value)
1334
if_tag.appendChild(ann_tag)
1335
# Fix argument name for the Introspect method itself
1336
if (if_tag.getAttribute("name")
1337
== dbus.INTROSPECTABLE_IFACE):
1338
for cn in if_tag.getElementsByTagName("method"):
1339
if cn.getAttribute("name") == "Introspect":
1340
for arg in cn.getElementsByTagName("arg"):
1341
if (arg.getAttribute("direction")
1342
== "out"):
1343
arg.setAttribute("name",
1344
"xml_data")
1345
xmlstring = document.toxml("utf-8")
1346
document.unlink()
1347
except (AttributeError, xml.dom.DOMException,
1348
xml.parsers.expat.ExpatError) as error:
1349
logger.error("Failed to override Introspection method",
1350
exc_info=error)
1351
return xmlstring
1352
1353
1354
class DBusObjectWithProperties(DBusObjectWithAnnotations):
782
class DBusObjectWithProperties(dbus.service.Object):
1355
783
"""A D-Bus object with properties.
1356
784
1357
785
Classes inheriting from this can use the dbus_service_property
1358
786
decorator to expose methods as D-Bus properties. It exposes the
1359
787
standard Get(), Set(), and GetAll() methods on the D-Bus.
1360
788
"""
1361
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
1362
802
def _get_dbus_property(self, interface_name, property_name):
1363
803
"""Returns a bound method if one exists which is a D-Bus
1364
804
property with the specified name and interface.
1365
805
"""
1366
for cls in self.__class__.__mro__:
1367
for name, value in inspect.getmembers(
1368
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)):
1369
809
if (value._dbus_name == property_name
1370
810
and value._dbus_interface == interface_name):
1371
811
return value.__get__(self)
1372
812
1373
813
# No such property
1374
raise DBusPropertyNotFound("{}:{}.{}".format(
1375
self.dbus_object_path, interface_name, property_name))
1376
1377
@classmethod
1378
def _get_all_interface_names(cls):
1379
"""Get a sequence of all interfaces supported by an object"""
1380
return (name for name in set(getattr(getattr(x, attr),
1381
"_dbus_interface", None)
1382
for x in (inspect.getmro(cls))
1383
for attr in dir(x))
1384
if name is not None)
1385
1386
@dbus.service.method(dbus.PROPERTIES_IFACE,
1387
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",
1388
819
out_signature="v")
1389
820
def Get(self, interface_name, property_name):
1390
821
"""Standard D-Bus property Get() method, see D-Bus standard.
1396
827
if not hasattr(value, "variant_level"):
1397
828
return value
1398
829
return type(value)(value, variant_level=value.variant_level+1)
1399
830
1400
831
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1401
832
def Set(self, interface_name, property_name, value):
1402
833
"""Standard D-Bus property Set() method, see D-Bus standard.
1408
839
# The byte_arrays option is not supported yet on
1409
840
# signatures other than "ay".
1410
841
if prop._dbus_signature != "ay":
1411
raise ValueError("Byte arrays not supported for non-"
1412
"'ay' signature {!r}"
1413
.format(prop._dbus_signature))
1414
value = dbus.ByteArray(bytes(value))
842
raise ValueError
843
value = dbus.ByteArray(''.join(unichr(byte)
844
for byte in value))
1415
845
prop(value)
1416
1417
@dbus.service.method(dbus.PROPERTIES_IFACE,
1418
in_signature="s",
846
847
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1419
848
out_signature="a{sv}")
1420
849
def GetAll(self, interface_name):
1421
850
"""Standard D-Bus property GetAll() method, see D-Bus
1422
851
standard.
1423
852
1424
853
Note: Will not include properties with access="write".
1425
854
"""
1426
855
properties = {}
1427
for name, prop in self._get_all_dbus_things("property"):
856
for name, prop in self._get_all_dbus_properties():
1428
857
if (interface_name
1429
858
and interface_name != prop._dbus_interface):
1430
859
# Interface non-empty but did not match
1436
865
if not hasattr(value, "variant_level"):
1437
866
properties[name] = value
1438
867
continue
1439
properties[name] = type(value)(
1440
value, variant_level=value.variant_level + 1)
868
properties[name] = type(value)(value, variant_level=
869
value.variant_level+1)
1441
870
return dbus.Dictionary(properties, signature="sv")
1442
1443
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1444
def PropertiesChanged(self, interface_name, changed_properties,
1445
invalidated_properties):
1446
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1447
standard.
1448
"""
1449
pass
1450
871
1451
872
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1452
873
out_signature="s",
1453
874
path_keyword='object_path',
1454
875
connection_keyword='connection')
1455
876
def Introspect(self, object_path, connection):
1456
"""Overloading of standard D-Bus method.
1457
1458
Inserts property tags and interface annotation tags.
877
"""Standard D-Bus method, overloaded to insert property tags.
1459
878
"""
1460
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1461
object_path,
1462
connection)
879
xmlstring = dbus.service.Object.Introspect(self, object_path,
880
connection)
1463
881
try:
1464
882
document = xml.dom.minidom.parseString(xmlstring)
1465
1466
883
def make_tag(document, name, prop):
1467
884
e = document.createElement("property")
1468
885
e.setAttribute("name", name)
1469
886
e.setAttribute("type", prop._dbus_signature)
1470
887
e.setAttribute("access", prop._dbus_access)
1471
888
return e
1472
1473
889
for if_tag in document.getElementsByTagName("interface"):
1474
# Add property tags
1475
890
for tag in (make_tag(document, name, prop)
1476
891
for name, prop
1477
in self._get_all_dbus_things("property")
892
in self._get_all_dbus_properties()
1478
893
if prop._dbus_interface
1479
894
== if_tag.getAttribute("name")):
1480
895
if_tag.appendChild(tag)
1481
# Add annotation tags for properties
1482
for tag in if_tag.getElementsByTagName("property"):
1483
annots = dict()
1484
for name, prop in self._get_all_dbus_things(
1485
"property"):
1486
if (name == tag.getAttribute("name")
1487
and prop._dbus_interface
1488
== if_tag.getAttribute("name")):
1489
annots.update(getattr(
1490
prop, "_dbus_annotations", {}))
1491
for name, value in annots.items():
1492
ann_tag = document.createElement(
1493
"annotation")
1494
ann_tag.setAttribute("name", name)
1495
ann_tag.setAttribute("value", value)
1496
tag.appendChild(ann_tag)
1497
896
# Add the names to the return values for the
1498
897
# "org.freedesktop.DBus.Properties" methods
1499
898
if (if_tag.getAttribute("name")
1514
913
except (AttributeError, xml.dom.DOMException,
1515
914
xml.parsers.expat.ExpatError) as error:
1516
915
logger.error("Failed to override Introspection method",
1517
exc_info=error)
1518
return xmlstring
1519
1520
1521
try:
1522
dbus.OBJECT_MANAGER_IFACE
1523
except AttributeError:
1524
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1525
1526
1527
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1528
"""A D-Bus object with an ObjectManager.
1529
1530
Classes inheriting from this exposes the standard
1531
GetManagedObjects call and the InterfacesAdded and
1532
InterfacesRemoved signals on the standard
1533
"org.freedesktop.DBus.ObjectManager" interface.
1534
1535
Note: No signals are sent automatically; they must be sent
1536
manually.
1537
"""
1538
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1539
out_signature="a{oa{sa{sv}}}")
1540
def GetManagedObjects(self):
1541
"""This function must be overridden"""
1542
raise NotImplementedError()
1543
1544
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1545
signature="oa{sa{sv}}")
1546
def InterfacesAdded(self, object_path, interfaces_and_properties):
1547
pass
1548
1549
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1550
def InterfacesRemoved(self, object_path, interfaces):
1551
pass
1552
1553
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1554
out_signature="s",
1555
path_keyword='object_path',
1556
connection_keyword='connection')
1557
def Introspect(self, object_path, connection):
1558
"""Overloading of standard D-Bus method.
1559
1560
Override return argument name of GetManagedObjects to be
1561
"objpath_interfaces_and_properties"
1562
"""
1563
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1564
object_path,
1565
connection)
1566
try:
1567
document = xml.dom.minidom.parseString(xmlstring)
1568
1569
for if_tag in document.getElementsByTagName("interface"):
1570
# Fix argument name for the GetManagedObjects method
1571
if (if_tag.getAttribute("name")
1572
== dbus.OBJECT_MANAGER_IFACE):
1573
for cn in if_tag.getElementsByTagName("method"):
1574
if (cn.getAttribute("name")
1575
== "GetManagedObjects"):
1576
for arg in cn.getElementsByTagName("arg"):
1577
if (arg.getAttribute("direction")
1578
== "out"):
1579
arg.setAttribute(
1580
"name",
1581
"objpath_interfaces"
1582
"_and_properties")
1583
xmlstring = document.toxml("utf-8")
1584
document.unlink()
1585
except (AttributeError, xml.dom.DOMException,
1586
xml.parsers.expat.ExpatError) as error:
1587
logger.error("Failed to override Introspection method",
1588
exc_info=error)
1589
return xmlstring
1590
1591
1592
def datetime_to_dbus(dt, variant_level=0):
916
error)
917
return xmlstring
918
919
920
def datetime_to_dbus (dt, variant_level=0):
1593
921
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1594
922
if dt is None:
1595
return dbus.String("", variant_level=variant_level)
1596
return dbus.String(dt.isoformat(), variant_level=variant_level)
1597
1598
1599
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1600
"""A class decorator; applied to a subclass of
1601
dbus.service.Object, it will add alternate D-Bus attributes with
1602
interface names according to the "alt_interface_names" mapping.
1603
Usage:
1604
1605
@alternate_dbus_interfaces({"org.example.Interface":
1606
"net.example.AlternateInterface"})
1607
class SampleDBusObject(dbus.service.Object):
1608
@dbus.service.method("org.example.Interface")
1609
def SampleDBusMethod():
1610
pass
1611
1612
The above "SampleDBusMethod" on "SampleDBusObject" will be
1613
reachable via two interfaces: "org.example.Interface" and
1614
"net.example.AlternateInterface", the latter of which will have
1615
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1616
"true", unless "deprecate" is passed with a False value.
1617
1618
This works for methods and signals, and also for D-Bus properties
1619
(from DBusObjectWithProperties) and interfaces (from the
1620
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.
1621
932
"""
1622
1623
def wrapper(cls):
1624
for orig_interface_name, alt_interface_name in (
1625
alt_interface_names.items()):
1626
attr = {}
1627
interface_names = set()
1628
# Go though all attributes of the class
1629
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):
1630
940
# Ignore non-D-Bus attributes, and D-Bus attributes
1631
941
# with the wrong interface name
1632
942
if (not hasattr(attribute, "_dbus_interface")
1633
or not attribute._dbus_interface.startswith(
1634
orig_interface_name)):
943
or not attribute._dbus_interface
944
.startswith("se.recompile.Mandos")):
1635
945
continue
1636
946
# Create an alternate D-Bus interface name based on
1637
947
# the current name
1638
alt_interface = attribute._dbus_interface.replace(
1639
orig_interface_name, alt_interface_name)
1640
interface_names.add(alt_interface)
948
alt_interface = (attribute._dbus_interface
949
.replace("se.recompile.Mandos",
950
"se.bsnet.fukt.Mandos"))
1641
951
# Is this a D-Bus signal?
1642
952
if getattr(attribute, "_dbus_is_signal", False):
1643
# Extract the original non-method undecorated
1644
# function by black magic
1645
if sys.version_info.major == 2:
1646
nonmethod_func = (dict(
953
# Extract the original non-method function by
954
# black magic
955
nonmethod_func = (dict(
1647
956
zip(attribute.func_code.co_freevars,
1648
attribute.__closure__))
1649
["func"].cell_contents)
1650
else:
1651
nonmethod_func = (dict(
1652
zip(attribute.__code__.co_freevars,
1653
attribute.__closure__))
1654
["func"].cell_contents)
957
attribute.__closure__))["func"]
958
.cell_contents)
1655
959
# Create a new, but exactly alike, function
1656
960
# object, and decorate it to be a new D-Bus signal
1657
961
# with the alternate D-Bus interface name
1658
new_function = copy_function(nonmethod_func)
1659
new_function = (dbus.service.signal(
1660
alt_interface,
1661
attribute._dbus_signature)(new_function))
1662
# Copy annotations, if any
1663
try:
1664
new_function._dbus_annotations = dict(
1665
attribute._dbus_annotations)
1666
except AttributeError:
1667
pass
1668
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)))
1669
971
# Define a creator of a function to call both the
1670
# original and alternate functions, so both the
1671
# original and alternate signals gets sent when
1672
# the function is called
972
# old and new functions, so both the old and new
973
# signals gets sent when the function is called
1673
974
def fixscope(func1, func2):
1674
975
"""This function is a scope container to pass
1675
976
func1 and func2 to the "call_both" function
1676
977
outside of its arguments"""
1677
1678
@functools.wraps(func2)
1679
978
def call_both(*args, **kwargs):
1680
979
"""This function will emit two D-Bus
1681
980
signals by calling func1 and func2"""
1682
981
func1(*args, **kwargs)
1683
982
func2(*args, **kwargs)
1684
# Make wrapper function look like a D-Bus
1685
# signal
1686
for name, attr in inspect.getmembers(func2):
1687
if name.startswith("_dbus_"):
1688
setattr(call_both, name, attr)
1689
1690
983
return call_both
1691
984
# Create the "call_both" function and add it to
1692
985
# the class
1693
attr[attrname] = fixscope(attribute, new_function)
986
attr[attrname] = fixscope(attribute,
987
new_function)
1694
988
# Is this a D-Bus method?
1695
989
elif getattr(attribute, "_dbus_is_method", False):
1696
990
# Create a new, but exactly alike, function
1697
991
# object. Decorate it to be a new D-Bus method
1698
992
# with the alternate D-Bus interface name. Add it
1699
993
# to the class.
1700
attr[attrname] = (
1701
dbus.service.method(
1702
alt_interface,
1703
attribute._dbus_in_signature,
1704
attribute._dbus_out_signature)
1705
(copy_function(attribute)))
1706
# Copy annotations, if any
1707
try:
1708
attr[attrname]._dbus_annotations = dict(
1709
attribute._dbus_annotations)
1710
except AttributeError:
1711
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)))
1712
1004
# Is this a D-Bus property?
1713
1005
elif getattr(attribute, "_dbus_is_property", False):
1714
1006
# Create a new, but exactly alike, function
1715
1007
# object, and decorate it to be a new D-Bus
1716
1008
# property with the alternate D-Bus interface
1717
1009
# name. Add it to the class.
1718
attr[attrname] = (dbus_service_property(
1719
alt_interface, attribute._dbus_signature,
1720
attribute._dbus_access,
1721
attribute._dbus_get_args_options
1722
["byte_arrays"])
1723
(copy_function(attribute)))
1724
# Copy annotations, if any
1725
try:
1726
attr[attrname]._dbus_annotations = dict(
1727
attribute._dbus_annotations)
1728
except AttributeError:
1729
pass
1730
# Is this a D-Bus interface?
1731
elif getattr(attribute, "_dbus_is_interface", False):
1732
# Create a new, but exactly alike, function
1733
# object. Decorate it to be a new D-Bus interface
1734
# with the alternate D-Bus interface name. Add it
1735
# to the class.
1736
attr[attrname] = (
1737
dbus_interface_annotations(alt_interface)
1738
(copy_function(attribute)))
1739
if deprecate:
1740
# Deprecate all alternate interfaces
1741
iname = "_AlternateDBusNames_interface_annotation{}"
1742
for interface_name in interface_names:
1743
1744
@dbus_interface_annotations(interface_name)
1745
def func(self):
1746
return {"org.freedesktop.DBus.Deprecated":
1747
"true"}
1748
# Find an unused name
1749
for aname in (iname.format(i)
1750
for i in itertools.count()):
1751
if aname not in attr:
1752
attr[aname] = func
1753
break
1754
if interface_names:
1755
# Replace the class with a new subclass of it with
1756
# methods, signals, etc. as created above.
1757
if sys.version_info.major == 2:
1758
cls = type(b"{}Alternate".format(cls.__name__),
1759
(cls, ), attr)
1760
else:
1761
cls = type("{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
return cls
1764
1765
return wrapper
1766
1767
1768
@alternate_dbus_interfaces({"se.recompile.Mandos":
1769
"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
1770
1026
class ClientDBus(Client, DBusObjectWithProperties):
1771
1027
"""A Client class using D-Bus
1772
1028
1773
1029
Attributes:
1774
1030
dbus_object_path: dbus.ObjectPath
1775
1031
bus: dbus.SystemBus()
1776
1032
"""
1777
1033
1778
1034
runtime_expansions = (Client.runtime_expansions
1779
+ ("dbus_object_path", ))
1780
1781
_interface = "se.recompile.Mandos.Client"
1782
1035
+ ("dbus_object_path",))
1036
1783
1037
# dbus.service.Object doesn't use super(), so we can't either.
1784
1785
def __init__(self, bus=None, *args, **kwargs):
1038
1039
def __init__(self, bus = None, *args, **kwargs):
1786
1040
self.bus = bus
1787
1041
Client.__init__(self, *args, **kwargs)
1042
self._approvals_pending = 0
1043
1044
self._approvals_pending = 0
1788
1045
# Only now, when this client is initialized, can it show up on
1789
1046
# the D-Bus
1790
client_object_name = str(self.name).translate(
1047
client_object_name = unicode(self.name).translate(
1791
1048
{ord("."): ord("_"),
1792
1049
ord("-"): ord("_")})
1793
self.dbus_object_path = dbus.ObjectPath(
1794
"/clients/" + client_object_name)
1050
self.dbus_object_path = (dbus.ObjectPath
1051
("/clients/" + client_object_name))
1795
1052
DBusObjectWithProperties.__init__(self, self.bus,
1796
1053
self.dbus_object_path)
1797
1798
def notifychangeproperty(transform_func, dbus_name,
1799
type_func=lambda x: x,
1800
variant_level=1,
1801
invalidate_only=False,
1802
_interface=_interface):
1054
1055
def notifychangeproperty(transform_func,
1056
dbus_name, type_func=lambda x: x,
1057
variant_level=1):
1803
1058
""" Modify a variable so that it's a property which announces
1804
1059
its changes to DBus.
1805
1060
1806
1061
transform_fun: Function that takes a value and a variant_level
1807
1062
and transforms it to a D-Bus type.
1808
1063
dbus_name: D-Bus name of the variable
1810
1065
to the D-Bus. Default: no transform
1811
1066
variant_level: D-Bus variant level. Default: 1
1812
1067
"""
1813
attrname = "_{}".format(dbus_name)
1814
1068
attrname = "_{0}".format(dbus_name)
1815
1069
def setter(self, value):
1816
1070
if hasattr(self, "dbus_object_path"):
1817
1071
if (not hasattr(self, attrname) or
1818
1072
type_func(getattr(self, attrname, None))
1819
1073
!= type_func(value)):
1820
if invalidate_only:
1821
self.PropertiesChanged(
1822
_interface, dbus.Dictionary(),
1823
dbus.Array((dbus_name, )))
1824
else:
1825
dbus_value = transform_func(
1826
type_func(value),
1827
variant_level=variant_level)
1828
self.PropertyChanged(dbus.String(dbus_name),
1829
dbus_value)
1830
self.PropertiesChanged(
1831
_interface,
1832
dbus.Dictionary({dbus.String(dbus_name):
1833
dbus_value}),
1834
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)
1835
1079
setattr(self, attrname, value)
1836
1080
1837
1081
return property(lambda self: getattr(self, attrname), setter)
1838
1082
1083
1839
1084
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1840
1085
approvals_pending = notifychangeproperty(dbus.Boolean,
1841
1086
"ApprovalPending",
1842
type_func=bool)
1087
type_func = bool)
1843
1088
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1844
1089
last_enabled = notifychangeproperty(datetime_to_dbus,
1845
1090
"LastEnabled")
1846
checker = notifychangeproperty(
1847
dbus.Boolean, "CheckerRunning",
1848
type_func=lambda checker: checker is not None)
1091
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1092
type_func = lambda checker:
1093
checker is not None)
1849
1094
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1850
1095
"LastCheckedOK")
1851
last_checker_status = notifychangeproperty(dbus.Int16,
1852
"LastCheckerStatus")
1853
1096
last_approval_request = notifychangeproperty(
1854
1097
datetime_to_dbus, "LastApprovalRequest")
1855
1098
approved_by_default = notifychangeproperty(dbus.Boolean,
1856
1099
"ApprovedByDefault")
1857
approval_delay = notifychangeproperty(
1858
dbus.UInt64, "ApprovalDelay",
1859
type_func=lambda td: td.total_seconds() * 1000)
1100
approval_delay = notifychangeproperty(dbus.UInt64,
1101
"ApprovalDelay",
1102
type_func =
1103
timedelta_to_milliseconds)
1860
1104
approval_duration = notifychangeproperty(
1861
1105
dbus.UInt64, "ApprovalDuration",
1862
type_func=lambda td: td.total_seconds() * 1000)
1106
type_func = timedelta_to_milliseconds)
1863
1107
host = notifychangeproperty(dbus.String, "Host")
1864
timeout = notifychangeproperty(
1865
dbus.UInt64, "Timeout",
1866
type_func=lambda td: td.total_seconds() * 1000)
1108
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1109
type_func =
1110
timedelta_to_milliseconds)
1867
1111
extended_timeout = notifychangeproperty(
1868
1112
dbus.UInt64, "ExtendedTimeout",
1869
type_func=lambda td: td.total_seconds() * 1000)
1870
interval = notifychangeproperty(
1871
dbus.UInt64, "Interval",
1872
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)
1873
1118
checker_command = notifychangeproperty(dbus.String, "Checker")
1874
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1875
invalidate_only=True)
1876
1119
1877
1120
del notifychangeproperty
1878
1121
1879
1122
def __del__(self, *args, **kwargs):
1880
1123
try:
1881
1124
self.remove_from_connection()
1884
1127
if hasattr(DBusObjectWithProperties, "__del__"):
1885
1128
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1886
1129
Client.__del__(self, *args, **kwargs)
1887
1888
def checker_callback(self, source, condition,
1889
connection, command, *args, **kwargs):
1890
ret = Client.checker_callback(self, source, condition,
1891
connection, command, *args,
1892
**kwargs)
1893
exitstatus = self.last_checker_status
1894
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)
1895
1137
# Emit D-Bus signal
1896
1138
self.CheckerCompleted(dbus.Int16(exitstatus),
1897
# This is specific to GNU libC
1898
dbus.Int64(exitstatus << 8),
1139
dbus.Int64(condition),
1899
1140
dbus.String(command))
1900
1141
else:
1901
1142
# Emit D-Bus signal
1902
1143
self.CheckerCompleted(dbus.Int16(-1),
1903
dbus.Int64(
1904
# This is specific to GNU libC
1905
(exitstatus << 8)
1906
| self.last_checker_signal),
1144
dbus.Int64(condition),
1907
1145
dbus.String(command))
1908
return ret
1909
1146
1147
return Client.checker_callback(self, pid, condition, command,
1148
*args, **kwargs)
1149
1910
1150
def start_checker(self, *args, **kwargs):
1911
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
1912
1156
r = Client.start_checker(self, *args, **kwargs)
1913
1157
# Only if new checker process was started
1914
1158
if (self.checker is not None
1916
1160
# Emit D-Bus signal
1917
1161
self.CheckerStarted(self.current_checker_command)
1918
1162
return r
1919
1163
1920
1164
def _reset_approved(self):
1921
1165
self.approved = None
1922
1166
return False
1923
1167
1924
1168
def approve(self, value=True):
1169
self.send_changedstate()
1925
1170
self.approved = value
1926
GLib.timeout_add(int(self.approval_duration.total_seconds()
1927
* 1000), self._reset_approved)
1928
self.send_changedstate()
1929
1930
# D-Bus methods, signals & properties
1931
1932
# Interfaces
1933
1934
# Signals
1935
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
1936
1181
# CheckerCompleted - signal
1937
1182
@dbus.service.signal(_interface, signature="nxs")
1938
1183
def CheckerCompleted(self, exitcode, waitstatus, command):
1939
1184
"D-Bus signal"
1940
1185
pass
1941
1186
1942
1187
# CheckerStarted - signal
1943
1188
@dbus.service.signal(_interface, signature="s")
1944
1189
def CheckerStarted(self, command):
1945
1190
"D-Bus signal"
1946
1191
pass
1947
1192
1948
1193
# PropertyChanged - signal
1949
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1950
1194
@dbus.service.signal(_interface, signature="sv")
1951
1195
def PropertyChanged(self, property, value):
1952
1196
"D-Bus signal"
1953
1197
pass
1954
1198
1955
1199
# GotSecret - signal
1956
1200
@dbus.service.signal(_interface)
1957
1201
def GotSecret(self):
1960
1204
server to mandos-client
1961
1205
"""
1962
1206
pass
1963
1207
1964
1208
# Rejected - signal
1965
1209
@dbus.service.signal(_interface, signature="s")
1966
1210
def Rejected(self, reason):
1967
1211
"D-Bus signal"
1968
1212
pass
1969
1213
1970
1214
# NeedApproval - signal
1971
1215
@dbus.service.signal(_interface, signature="tb")
1972
1216
def NeedApproval(self, timeout, default):
1973
1217
"D-Bus signal"
1974
1218
return self.need_approval()
1975
1976
# Methods
1977
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
1978
1230
# Approve - method
1979
1231
@dbus.service.method(_interface, in_signature="b")
1980
1232
def Approve(self, value):
1981
1233
self.approve(value)
1982
1234
1983
1235
# CheckedOK - method
1984
1236
@dbus.service.method(_interface)
1985
1237
def CheckedOK(self):
1986
1238
self.checked_ok()
1987
1239
1988
1240
# Enable - method
1989
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1990
1241
@dbus.service.method(_interface)
1991
1242
def Enable(self):
1992
1243
"D-Bus method"
1993
1244
self.enable()
1994
1245
1995
1246
# StartChecker - method
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1997
1247
@dbus.service.method(_interface)
1998
1248
def StartChecker(self):
1999
1249
"D-Bus method"
2000
1250
self.start_checker()
2001
1251
2002
1252
# Disable - method
2003
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2004
1253
@dbus.service.method(_interface)
2005
1254
def Disable(self):
2006
1255
"D-Bus method"
2007
1256
self.disable()
2008
1257
2009
1258
# StopChecker - method
2010
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2011
1259
@dbus.service.method(_interface)
2012
1260
def StopChecker(self):
2013
1261
self.stop_checker()
2014
2015
# Properties
2016
1262
1263
## Properties
1264
2017
1265
# ApprovalPending - property
2018
1266
@dbus_service_property(_interface, signature="b", access="read")
2019
1267
def ApprovalPending_dbus_property(self):
2020
1268
return dbus.Boolean(bool(self.approvals_pending))
2021
1269
2022
1270
# ApprovedByDefault - property
2023
@dbus_service_property(_interface,
2024
signature="b",
1271
@dbus_service_property(_interface, signature="b",
2025
1272
access="readwrite")
2026
1273
def ApprovedByDefault_dbus_property(self, value=None):
2027
1274
if value is None: # get
2028
1275
return dbus.Boolean(self.approved_by_default)
2029
1276
self.approved_by_default = bool(value)
2030
1277
2031
1278
# ApprovalDelay - property
2032
@dbus_service_property(_interface,
2033
signature="t",
1279
@dbus_service_property(_interface, signature="t",
2034
1280
access="readwrite")
2035
1281
def ApprovalDelay_dbus_property(self, value=None):
2036
1282
if value is None: # get
2037
return dbus.UInt64(self.approval_delay.total_seconds()
2038
* 1000)
1283
return dbus.UInt64(self.approval_delay_milliseconds())
2039
1284
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2040
1285
2041
1286
# ApprovalDuration - property
2042
@dbus_service_property(_interface,
2043
signature="t",
1287
@dbus_service_property(_interface, signature="t",
2044
1288
access="readwrite")
2045
1289
def ApprovalDuration_dbus_property(self, value=None):
2046
1290
if value is None: # get
2047
return dbus.UInt64(self.approval_duration.total_seconds()
2048
* 1000)
1291
return dbus.UInt64(timedelta_to_milliseconds(
1292
self.approval_duration))
2049
1293
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2050
1294
2051
1295
# Name - property
2052
@dbus_annotations(
2053
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2054
1296
@dbus_service_property(_interface, signature="s", access="read")
2055
1297
def Name_dbus_property(self):
2056
1298
return dbus.String(self.name)
2057
2058
# KeyID - property
2059
@dbus_annotations(
2060
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2061
@dbus_service_property(_interface, signature="s", access="read")
2062
def KeyID_dbus_property(self):
2063
return dbus.String(self.key_id)
2064
1299
2065
1300
# Fingerprint - property
2066
@dbus_annotations(
2067
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2068
1301
@dbus_service_property(_interface, signature="s", access="read")
2069
1302
def Fingerprint_dbus_property(self):
2070
1303
return dbus.String(self.fingerprint)
2071
1304
2072
1305
# Host - property
2073
@dbus_service_property(_interface,
2074
signature="s",
1306
@dbus_service_property(_interface, signature="s",
2075
1307
access="readwrite")
2076
1308
def Host_dbus_property(self, value=None):
2077
1309
if value is None: # get
2078
1310
return dbus.String(self.host)
2079
self.host = str(value)
2080
1311
self.host = unicode(value)
1312
2081
1313
# Created - property
2082
@dbus_annotations(
2083
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2084
1314
@dbus_service_property(_interface, signature="s", access="read")
2085
1315
def Created_dbus_property(self):
2086
1316
return datetime_to_dbus(self.created)
2087
1317
2088
1318
# LastEnabled - property
2089
1319
@dbus_service_property(_interface, signature="s", access="read")
2090
1320
def LastEnabled_dbus_property(self):
2091
1321
return datetime_to_dbus(self.last_enabled)
2092
1322
2093
1323
# Enabled - property
2094
@dbus_service_property(_interface,
2095
signature="b",
1324
@dbus_service_property(_interface, signature="b",
2096
1325
access="readwrite")
2097
1326
def Enabled_dbus_property(self, value=None):
2098
1327
if value is None: # get
2101
1330
self.enable()
2102
1331
else:
2103
1332
self.disable()
2104
1333
2105
1334
# LastCheckedOK - property
2106
@dbus_service_property(_interface,
2107
signature="s",
1335
@dbus_service_property(_interface, signature="s",
2108
1336
access="readwrite")
2109
1337
def LastCheckedOK_dbus_property(self, value=None):
2110
1338
if value is not None:
2111
1339
self.checked_ok()
2112
1340
return
2113
1341
return datetime_to_dbus(self.last_checked_ok)
2114
2115
# LastCheckerStatus - property
2116
@dbus_service_property(_interface, signature="n", access="read")
2117
def LastCheckerStatus_dbus_property(self):
2118
return dbus.Int16(self.last_checker_status)
2119
1342
2120
1343
# Expires - property
2121
1344
@dbus_service_property(_interface, signature="s", access="read")
2122
1345
def Expires_dbus_property(self):
2123
1346
return datetime_to_dbus(self.expires)
2124
1347
2125
1348
# LastApprovalRequest - property
2126
1349
@dbus_service_property(_interface, signature="s", access="read")
2127
1350
def LastApprovalRequest_dbus_property(self):
2128
1351
return datetime_to_dbus(self.last_approval_request)
2129
1352
2130
1353
# Timeout - property
2131
@dbus_service_property(_interface,
2132
signature="t",
1354
@dbus_service_property(_interface, signature="t",
2133
1355
access="readwrite")
2134
1356
def Timeout_dbus_property(self, value=None):
2135
1357
if value is None: # get
2136
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2137
old_timeout = self.timeout
1358
return dbus.UInt64(self.timeout_milliseconds())
2138
1359
self.timeout = datetime.timedelta(0, 0, 0, value)
2139
# Reschedule disabling
2140
if self.enabled:
2141
now = datetime.datetime.utcnow()
2142
self.expires += self.timeout - old_timeout
2143
if self.expires <= now:
2144
# The timeout has passed
2145
self.disable()
2146
else:
2147
if (getattr(self, "disable_initiator_tag", None)
2148
is None):
2149
return
2150
GLib.source_remove(self.disable_initiator_tag)
2151
self.disable_initiator_tag = GLib.timeout_add(
2152
int((self.expires - now).total_seconds() * 1000),
2153
self.disable)
2154
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
2155
1381
# ExtendedTimeout - property
2156
@dbus_service_property(_interface,
2157
signature="t",
1382
@dbus_service_property(_interface, signature="t",
2158
1383
access="readwrite")
2159
1384
def ExtendedTimeout_dbus_property(self, value=None):
2160
1385
if value is None: # get
2161
return dbus.UInt64(self.extended_timeout.total_seconds()
2162
* 1000)
1386
return dbus.UInt64(self.extended_timeout_milliseconds())
2163
1387
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2164
1388
2165
1389
# Interval - property
2166
@dbus_service_property(_interface,
2167
signature="t",
1390
@dbus_service_property(_interface, signature="t",
2168
1391
access="readwrite")
2169
1392
def Interval_dbus_property(self, value=None):
2170
1393
if value is None: # get
2171
return dbus.UInt64(self.interval.total_seconds() * 1000)
1394
return dbus.UInt64(self.interval_milliseconds())
2172
1395
self.interval = datetime.timedelta(0, 0, 0, value)
2173
1396
if getattr(self, "checker_initiator_tag", None) is None:
2174
1397
return
2175
1398
if self.enabled:
2176
1399
# Reschedule checker run
2177
GLib.source_remove(self.checker_initiator_tag)
2178
self.checker_initiator_tag = GLib.timeout_add(
2179
value, self.start_checker)
2180
self.start_checker() # Start one now, too
2181
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
2182
1405
# Checker - property
2183
@dbus_service_property(_interface,
2184
signature="s",
1406
@dbus_service_property(_interface, signature="s",
2185
1407
access="readwrite")
2186
1408
def Checker_dbus_property(self, value=None):
2187
1409
if value is None: # get
2188
1410
return dbus.String(self.checker_command)
2189
self.checker_command = str(value)
2190
1411
self.checker_command = unicode(value)
1412
2191
1413
# CheckerRunning - property
2192
@dbus_service_property(_interface,
2193
signature="b",
1414
@dbus_service_property(_interface, signature="b",
2194
1415
access="readwrite")
2195
1416
def CheckerRunning_dbus_property(self, value=None):
2196
1417
if value is None: # get
2199
1420
self.start_checker()
2200
1421
else:
2201
1422
self.stop_checker()
2202
1423
2203
1424
# ObjectPath - property
2204
@dbus_annotations(
2205
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2206
"org.freedesktop.DBus.Deprecated": "true"})
2207
1425
@dbus_service_property(_interface, signature="o", access="read")
2208
1426
def ObjectPath_dbus_property(self):
2209
return self.dbus_object_path # is already a dbus.ObjectPath
2210
1427
return self.dbus_object_path # is already a dbus.ObjectPath
1428
2211
1429
# Secret = property
2212
@dbus_annotations(
2213
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2214
"invalidates"})
2215
@dbus_service_property(_interface,
2216
signature="ay",
2217
access="write",
2218
byte_arrays=True)
1430
@dbus_service_property(_interface, signature="ay",
1431
access="write", byte_arrays=True)
2219
1432
def Secret_dbus_property(self, value):
2220
self.secret = bytes(value)
2221
1433
self.secret = str(value)
1434
2222
1435
del _interface
2223
1436
2224
1437
2225
class ProxyClient:
2226
def __init__(self, child_pipe, key_id, fpr, address):
1438
class ProxyClient(object):
1439
def __init__(self, child_pipe, fpr, address):
2227
1440
self._pipe = child_pipe
2228
self._pipe.send(('init', key_id, fpr, address))
1441
self._pipe.send(('init', fpr, address))
2229
1442
if not self._pipe.recv():
2230
raise KeyError(key_id or fpr)
2231
1443
raise KeyError()
1444
2232
1445
def __getattribute__(self, name):
2233
1446
if name == '_pipe':
2234
1447
return super(ProxyClient, self).__getattribute__(name)
2237
1450
if data[0] == 'data':
2238
1451
return data[1]
2239
1452
if data[0] == 'function':
2240
2241
1453
def func(*args, **kwargs):
2242
1454
self._pipe.send(('funcall', name, args, kwargs))
2243
1455
return self._pipe.recv()[1]
2244
2245
1456
return func
2246
1457
2247
1458
def __setattr__(self, name, value):
2248
1459
if name == '_pipe':
2249
1460
return super(ProxyClient, self).__setattr__(name, value)
2250
1461
self._pipe.send(('setattr', name, value))
2251
1462
2252
1463
1464
class ClientDBusTransitional(ClientDBus):
1465
__metaclass__ = AlternateDBusNamesMetaclass
1466
1467
2253
1468
class ClientHandler(socketserver.BaseRequestHandler, object):
2254
1469
"""A class to handle client connections.
2255
1470
2256
1471
Instantiated once for each connection to handle it.
2257
1472
Note: This will run in its own forked process."""
2258
1473
2259
1474
def handle(self):
2260
1475
with contextlib.closing(self.server.child_pipe) as child_pipe:
2261
1476
logger.info("TCP connection from: %s",
2262
str(self.client_address))
1477
unicode(self.client_address))
2263
1478
logger.debug("Pipe FD: %d",
2264
1479
self.server.child_pipe.fileno())
2265
2266
session = gnutls.ClientSession(self.request)
2267
2268
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2269
# "+AES-256-CBC", "+SHA1",
2270
# "+COMP-NULL", "+CTYPE-OPENPGP",
2271
# "+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"))
2272
1495
# Use a fallback default, since this MUST be set.
2273
1496
priority = self.server.gnutls_priority
2274
1497
if priority is None:
2275
1498
priority = "NORMAL"
2276
gnutls.priority_set_direct(session._c_object,
2277
priority.encode("utf-8"),
2278
None)
2279
1499
(gnutls.library.functions
1500
.gnutls_priority_set_direct(session._c_object,
1501
priority, None))
1502
2280
1503
# Start communication using the Mandos protocol
2281
1504
# Get protocol number
2282
1505
line = self.request.makefile().readline()
2283
1506
logger.debug("Protocol version: %r", line)
2284
1507
try:
2285
1508
if int(line.strip().split()[0]) > 1:
2286
raise RuntimeError(line)
1509
raise RuntimeError
2287
1510
except (ValueError, IndexError, RuntimeError) as error:
2288
1511
logger.error("Unknown protocol version: %s", error)
2289
1512
return
2290
1513
2291
1514
# Start GnuTLS connection
2292
1515
try:
2293
1516
session.handshake()
2294
except gnutls.Error as error:
1517
except gnutls.errors.GNUTLSError as error:
2295
1518
logger.warning("Handshake failed: %s", error)
2296
1519
# Do not run session.bye() here: the session is not
2297
1520
# established. Just abandon the request.
2298
1521
return
2299
1522
logger.debug("Handshake succeeded")
2300
1523
2301
1524
approval_required = False
2302
1525
try:
2303
if gnutls.has_rawpk:
2304
fpr = b""
2305
try:
2306
key_id = self.key_id(
2307
self.peer_certificate(session))
2308
except (TypeError, gnutls.Error) as error:
2309
logger.warning("Bad certificate: %s", error)
2310
return
2311
logger.debug("Key ID: %s", key_id)
2312
2313
else:
2314
key_id = b""
2315
try:
2316
fpr = self.fingerprint(
2317
self.peer_certificate(session))
2318
except (TypeError, gnutls.Error) as error:
2319
logger.warning("Bad certificate: %s", error)
2320
return
2321
logger.debug("Fingerprint: %s", fpr)
2322
2323
try:
2324
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,
2325
1537
self.client_address)
2326
1538
except KeyError:
2327
1539
return
2328
1540
1541
if self.server.use_dbus:
1542
# Emit D-Bus signal
1543
client.NewRequest(str(self.client_address))
1544
2329
1545
if client.approval_delay:
2330
1546
delay = client.approval_delay
2331
1547
client.approvals_pending += 1
2332
1548
approval_required = True
2333
1549
2334
1550
while True:
2335
1551
if not client.enabled:
2336
1552
logger.info("Client %s is disabled",
2337
client.name)
1553
client.name)
2338
1554
if self.server.use_dbus:
2339
1555
# Emit D-Bus signal
2340
1556
client.Rejected("Disabled")
2341
1557
return
2342
1558
2343
1559
if client.approved or not client.approval_delay:
2344
# We are approved or approval is disabled
1560
#We are approved or approval is disabled
2345
1561
break
2346
1562
elif client.approved is None:
2347
1563
logger.info("Client %s needs approval",
2349
1565
if self.server.use_dbus:
2350
1566
# Emit D-Bus signal
2351
1567
client.NeedApproval(
2352
client.approval_delay.total_seconds()
2353
* 1000, client.approved_by_default)
1568
client.approval_delay_milliseconds(),
1569
client.approved_by_default)
2354
1570
else:
2355
1571
logger.warning("Client %s was not approved",
2356
1572
client.name)
2358
1574
# Emit D-Bus signal
2359
1575
client.Rejected("Denied")
2360
1576
return
2361
2362
# wait until timeout or approved
1577
1578
#wait until timeout or approved
2363
1579
time = datetime.datetime.now()
2364
1580
client.changedstate.acquire()
2365
client.changedstate.wait(delay.total_seconds())
1581
(client.changedstate.wait
1582
(float(client.timedelta_to_milliseconds(delay)
1583
/ 1000)))
2366
1584
client.changedstate.release()
2367
1585
time2 = datetime.datetime.now()
2368
1586
if (time2 - time) >= delay:
2378
1596
break
2379
1597
else:
2380
1598
delay -= time2 - time
2381
2382
try:
2383
session.send(client.secret)
2384
except gnutls.Error as error:
2385
logger.warning("gnutls send failed",
2386
exc_info=error)
2387
return
2388
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
2389
1612
logger.info("Sending secret to %s", client.name)
2390
1613
# bump the timeout using extended_timeout
2391
client.bump_timeout(client.extended_timeout)
1614
client.checked_ok(client.extended_timeout)
2392
1615
if self.server.use_dbus:
2393
1616
# Emit D-Bus signal
2394
1617
client.GotSecret()
2395
1618
2396
1619
finally:
2397
1620
if approval_required:
2398
1621
client.approvals_pending -= 1
2399
1622
try:
2400
1623
session.bye()
2401
except gnutls.Error as error:
2402
logger.warning("GnuTLS bye failed",
2403
exc_info=error)
2404
1624
except gnutls.errors.GNUTLSError as error:
1625
logger.warning("GnuTLS bye failed")
1626
2405
1627
@staticmethod
2406
1628
def peer_certificate(session):
2407
"Return the peer's certificate as a bytestring"
2408
try:
2409
cert_type = gnutls.certificate_type_get2(session._c_object,
2410
gnutls.CTYPE_PEERS)
2411
except AttributeError:
2412
cert_type = gnutls.certificate_type_get(session._c_object)
2413
if gnutls.has_rawpk:
2414
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2415
else:
2416
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2417
# If not a valid certificate type...
2418
if cert_type not in valid_cert_types:
2419
logger.info("Cert type %r not in %r", cert_type,
2420
valid_cert_types)
2421
# ...return invalid data
2422
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
2423
1636
list_size = ctypes.c_uint(1)
2424
cert_list = (gnutls.certificate_get_peers
1637
cert_list = (gnutls.library.functions
1638
.gnutls_certificate_get_peers
2425
1639
(session._c_object, ctypes.byref(list_size)))
2426
1640
if not bool(cert_list) and list_size.value != 0:
2427
raise gnutls.Error("error getting peer certificate")
1641
raise gnutls.errors.GNUTLSError("error getting peer"
1642
" certificate")
2428
1643
if list_size.value == 0:
2429
1644
return None
2430
1645
cert = cert_list[0]
2431
1646
return ctypes.string_at(cert.data, cert.size)
2432
2433
@staticmethod
2434
def key_id(certificate):
2435
"Convert a certificate bytestring to a hexdigit key ID"
2436
# New GnuTLS "datum" with the public key
2437
datum = gnutls.datum_t(
2438
ctypes.cast(ctypes.c_char_p(certificate),
2439
ctypes.POINTER(ctypes.c_ubyte)),
2440
ctypes.c_uint(len(certificate)))
2441
# XXX all these need to be created in the gnutls "module"
2442
# New empty GnuTLS certificate
2443
pubkey = gnutls.pubkey_t()
2444
gnutls.pubkey_init(ctypes.byref(pubkey))
2445
# Import the raw public key into the certificate
2446
gnutls.pubkey_import(pubkey,
2447
ctypes.byref(datum),
2448
gnutls.X509_FMT_DER)
2449
# New buffer for the key ID
2450
buf = ctypes.create_string_buffer(32)
2451
buf_len = ctypes.c_size_t(len(buf))
2452
# Get the key ID from the raw public key into the buffer
2453
gnutls.pubkey_get_key_id(pubkey,
2454
gnutls.KEYID_USE_SHA256,
2455
ctypes.cast(ctypes.byref(buf),
2456
ctypes.POINTER(ctypes.c_ubyte)),
2457
ctypes.byref(buf_len))
2458
# Deinit the certificate
2459
gnutls.pubkey_deinit(pubkey)
2460
2461
# Convert the buffer to a Python bytestring
2462
key_id = ctypes.string_at(buf, buf_len.value)
2463
# Convert the bytestring to hexadecimal notation
2464
hex_key_id = binascii.hexlify(key_id).upper()
2465
return hex_key_id
2466
1647
2467
1648
@staticmethod
2468
1649
def fingerprint(openpgp):
2469
1650
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2470
1651
# New GnuTLS "datum" with the OpenPGP public key
2471
datum = gnutls.datum_t(
2472
ctypes.cast(ctypes.c_char_p(openpgp),
2473
ctypes.POINTER(ctypes.c_ubyte)),
2474
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))))
2475
1657
# New empty GnuTLS certificate
2476
crt = gnutls.openpgp_crt_t()
2477
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)))
2478
1661
# Import the OpenPGP public key into the certificate
2479
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2480
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))
2481
1666
# Verify the self signature in the key
2482
1667
crtverify = ctypes.c_uint()
2483
gnutls.openpgp_crt_verify_self(crt, 0,
2484
ctypes.byref(crtverify))
1668
(gnutls.library.functions
1669
.gnutls_openpgp_crt_verify_self(crt, 0,
1670
ctypes.byref(crtverify)))
2485
1671
if crtverify.value != 0:
2486
gnutls.openpgp_crt_deinit(crt)
2487
raise gnutls.CertificateSecurityError(code
2488
=crtverify.value)
1672
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1673
raise (gnutls.errors.CertificateSecurityError
1674
("Verify failed"))
2489
1675
# New buffer for the fingerprint
2490
1676
buf = ctypes.create_string_buffer(20)
2491
1677
buf_len = ctypes.c_size_t()
2492
1678
# Get the fingerprint from the certificate into the buffer
2493
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2494
ctypes.byref(buf_len))
1679
(gnutls.library.functions
1680
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1681
ctypes.byref(buf_len)))
2495
1682
# Deinit the certificate
2496
gnutls.openpgp_crt_deinit(crt)
1683
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2497
1684
# Convert the buffer to a Python bytestring
2498
1685
fpr = ctypes.string_at(buf, buf_len.value)
2499
1686
# Convert the bytestring to hexadecimal notation
2501
1688
return hex_fpr
2502
1689
2503
1690
2504
class MultiprocessingMixIn:
1691
class MultiprocessingMixIn(object):
2505
1692
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2506
2507
1693
def sub_process_main(self, request, address):
2508
1694
try:
2509
1695
self.finish_request(request, address)
2510
1696
except Exception:
2511
1697
self.handle_error(request, address)
2512
1698
self.close_request(request)
2513
1699
2514
1700
def process_request(self, request, address):
2515
1701
"""Start a new process to process the request."""
2516
proc = multiprocessing.Process(target=self.sub_process_main,
2517
args=(request, address))
1702
proc = multiprocessing.Process(target = self.sub_process_main,
1703
args = (request,
1704
address))
2518
1705
proc.start()
2519
1706
return proc
2520
1707
2521
1708
2522
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1709
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2523
1710
""" adds a pipe to the MixIn """
2524
2525
1711
def process_request(self, request, client_address):
2526
1712
"""Overrides and wraps the original process_request().
2527
1713
2528
1714
This function creates a new pipe in self.pipe
2529
1715
"""
2530
1716
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2531
1717
2532
1718
proc = MultiprocessingMixIn.process_request(self, request,
2533
1719
client_address)
2534
1720
self.child_pipe.close()
2535
1721
self.add_pipe(parent_pipe, proc)
2536
1722
2537
1723
def add_pipe(self, parent_pipe, proc):
2538
1724
"""Dummy function; override as necessary"""
2539
raise NotImplementedError()
1725
raise NotImplementedError
2540
1726
2541
1727
2542
1728
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2543
socketserver.TCPServer):
1729
socketserver.TCPServer, object):
2544
1730
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2545
1731
2546
1732
Attributes:
2547
1733
enabled: Boolean; whether this server is activated yet
2548
1734
interface: None or a network interface name (string)
2549
1735
use_ipv6: Boolean; to use IPv6 or not
2550
1736
"""
2551
2552
1737
def __init__(self, server_address, RequestHandlerClass,
2553
interface=None,
2554
use_ipv6=True,
2555
socketfd=None):
2556
"""If socketfd is set, use that file descriptor instead of
2557
creating a new one with socket.socket().
2558
"""
1738
interface=None, use_ipv6=True):
2559
1739
self.interface = interface
2560
1740
if use_ipv6:
2561
1741
self.address_family = socket.AF_INET6
2562
if socketfd is not None:
2563
# Save the file descriptor
2564
self.socketfd = socketfd
2565
# Save the original socket.socket() function
2566
self.socket_socket = socket.socket
2567
2568
# To implement --socket, we monkey patch socket.socket.
2569
#
2570
# (When socketserver.TCPServer is a new-style class, we
2571
# could make self.socket into a property instead of monkey
2572
# patching socket.socket.)
2573
#
2574
# Create a one-time-only replacement for socket.socket()
2575
@functools.wraps(socket.socket)
2576
def socket_wrapper(*args, **kwargs):
2577
# Restore original function so subsequent calls are
2578
# not affected.
2579
socket.socket = self.socket_socket
2580
del self.socket_socket
2581
# This time only, return a new socket object from the
2582
# saved file descriptor.
2583
return socket.fromfd(self.socketfd, *args, **kwargs)
2584
# Replace socket.socket() function with wrapper
2585
socket.socket = socket_wrapper
2586
# The socketserver.TCPServer.__init__ will call
2587
# socket.socket(), which might be our replacement,
2588
# socket_wrapper(), if socketfd was set.
2589
1742
socketserver.TCPServer.__init__(self, server_address,
2590
1743
RequestHandlerClass)
2591
2592
1744
def server_bind(self):
2593
1745
"""This overrides the normal server_bind() function
2594
1746
to bind to an interface if one was specified, and also NOT to
2595
1747
bind to an address or port if they were not specified."""
2596
global SO_BINDTODEVICE
2597
1748
if self.interface is not None:
2598
1749
if SO_BINDTODEVICE is None:
2599
# Fall back to a hard-coded value which seems to be
2600
# common enough.
2601
logger.warning("SO_BINDTODEVICE not found, trying 25")
2602
SO_BINDTODEVICE = 25
2603
try:
2604
self.socket.setsockopt(
2605
socket.SOL_SOCKET, SO_BINDTODEVICE,
2606
(self.interface + "\0").encode("utf-8"))
2607
except socket.error as error:
2608
if error.errno == errno.EPERM:
2609
logger.error("No permission to bind to"
2610
" interface %s", self.interface)
2611
elif error.errno == errno.ENOPROTOOPT:
2612
logger.error("SO_BINDTODEVICE not available;"
2613
" cannot bind to interface %s",
2614
self.interface)
2615
elif error.errno == errno.ENODEV:
2616
logger.error("Interface %s does not exist,"
2617
" cannot bind", self.interface)
2618
else:
2619
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
2620
1770
# Only bind(2) the socket if we really need to.
2621
1771
if self.server_address[0] or self.server_address[1]:
2622
if self.server_address[1]:
2623
self.allow_reuse_address = True
2624
1772
if not self.server_address[0]:
2625
1773
if self.address_family == socket.AF_INET6:
2626
any_address = "::" # in6addr_any
1774
any_address = "::" # in6addr_any
2627
1775
else:
2628
any_address = "0.0.0.0" # INADDR_ANY
1776
any_address = socket.INADDR_ANY
2629
1777
self.server_address = (any_address,
2630
1778
self.server_address[1])
2631
1779
elif not self.server_address[1]:
2632
self.server_address = (self.server_address[0], 0)
1780
self.server_address = (self.server_address[0],
1781
0)
2633
1782
# if self.interface:
2634
1783
# self.server_address = (self.server_address[0],
2635
1784
# 0, # port
2641
1790
2642
1791
class MandosServer(IPv6_TCPServer):
2643
1792
"""Mandos server.
2644
1793
2645
1794
Attributes:
2646
1795
clients: set of Client objects
2647
1796
gnutls_priority GnuTLS priority string
2648
1797
use_dbus: Boolean; to emit D-Bus signals or not
2649
2650
Assumes a GLib.MainLoop event loop.
1798
1799
Assumes a gobject.MainLoop event loop.
2651
1800
"""
2652
2653
1801
def __init__(self, server_address, RequestHandlerClass,
2654
interface=None,
2655
use_ipv6=True,
2656
clients=None,
2657
gnutls_priority=None,
2658
use_dbus=True,
2659
socketfd=None):
1802
interface=None, use_ipv6=True, clients=None,
1803
gnutls_priority=None, use_dbus=True):
2660
1804
self.enabled = False
2661
1805
self.clients = clients
2662
1806
if self.clients is None:
2665
1809
self.gnutls_priority = gnutls_priority
2666
1810
IPv6_TCPServer.__init__(self, server_address,
2667
1811
RequestHandlerClass,
2668
interface=interface,
2669
use_ipv6=use_ipv6,
2670
socketfd=socketfd)
2671
1812
interface = interface,
1813
use_ipv6 = use_ipv6)
2672
1814
def server_activate(self):
2673
1815
if self.enabled:
2674
1816
return socketserver.TCPServer.server_activate(self)
2675
1817
2676
1818
def enable(self):
2677
1819
self.enabled = True
2678
1820
2679
1821
def add_pipe(self, parent_pipe, proc):
2680
1822
# Call "handle_ipc" for both data and EOF events
2681
GLib.io_add_watch(
2682
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2683
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2684
functools.partial(self.handle_ipc,
2685
parent_pipe=parent_pipe,
2686
proc=proc))
2687
2688
def handle_ipc(self, source, condition,
2689
parent_pipe=None,
2690
proc=None,
2691
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)
2692
1846
# error, or the other end of multiprocessing.Pipe has closed
2693
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1847
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2694
1848
# Wait for other process to exit
2695
1849
proc.join()
2696
1850
return False
2697
1851
2698
1852
# Read a request from the child
2699
1853
request = parent_pipe.recv()
2700
1854
command = request[0]
2701
1855
2702
1856
if command == 'init':
2703
key_id = request[1].decode("ascii")
2704
fpr = request[2].decode("ascii")
2705
address = request[3]
2706
2707
for c in self.clients.values():
2708
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2709
continue
2710
if key_id and c.key_id == key_id:
2711
client = c
2712
break
2713
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:
2714
1862
client = c
2715
1863
break
2716
1864
else:
2717
logger.info("Client not found for key ID: %s, address"
2718
": %s", key_id or fpr, address)
1865
logger.info("Client not found for fingerprint: %s, ad"
1866
"dress: %s", fpr, address)
2719
1867
if self.use_dbus:
2720
1868
# Emit D-Bus signal
2721
mandos_dbus_service.ClientNotFound(key_id or fpr,
1869
mandos_dbus_service.ClientNotFound(fpr,
2722
1870
address[0])
2723
1871
parent_pipe.send(False)
2724
1872
return False
2725
2726
GLib.io_add_watch(
2727
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2728
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2729
functools.partial(self.handle_ipc,
2730
parent_pipe=parent_pipe,
2731
proc=proc,
2732
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))
2733
1882
parent_pipe.send(True)
2734
1883
# remove the old hook in favor of the new above hook on
2735
1884
# same fileno
2738
1887
funcname = request[1]
2739
1888
args = request[2]
2740
1889
kwargs = request[3]
2741
1890
2742
1891
parent_pipe.send(('data', getattr(client_object,
2743
1892
funcname)(*args,
2744
**kwargs)))
2745
1893
**kwargs)))
1894
2746
1895
if command == 'getattr':
2747
1896
attrname = request[1]
2748
if isinstance(client_object.__getattribute__(attrname),
2749
collections.Callable):
2750
parent_pipe.send(('function', ))
1897
if callable(client_object.__getattribute__(attrname)):
1898
parent_pipe.send(('function',))
2751
1899
else:
2752
parent_pipe.send((
2753
'data', client_object.__getattribute__(attrname)))
2754
1900
parent_pipe.send(('data', client_object
1901
.__getattribute__(attrname)))
1902
2755
1903
if command == 'setattr':
2756
1904
attrname = request[1]
2757
1905
value = request[2]
2758
1906
setattr(client_object, attrname, value)
2759
1907
2760
1908
return True
2761
1909
2762
1910
2763
def rfc3339_duration_to_delta(duration):
2764
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2765
2766
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2767
True
2768
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2769
True
2770
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2771
True
2772
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2773
True
2774
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2775
True
2776
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2777
True
2778
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2779
True
2780
"""
2781
2782
# Parsing an RFC 3339 duration with regular expressions is not
2783
# possible - there would have to be multiple places for the same
2784
# values, like seconds. The current code, while more esoteric, is
2785
# cleaner without depending on a parsing library. If Python had a
2786
# built-in library for parsing we would use it, but we'd like to
2787
# avoid excessive use of external libraries.
2788
2789
# New type for defining tokens, syntax, and semantics all-in-one
2790
Token = collections.namedtuple("Token", (
2791
"regexp", # To match token; if "value" is not None, must have
2792
# a "group" containing digits
2793
"value", # datetime.timedelta or None
2794
"followers")) # Tokens valid after this token
2795
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2796
# the "duration" ABNF definition in RFC 3339, Appendix A.
2797
token_end = Token(re.compile(r"$"), None, frozenset())
2798
token_second = Token(re.compile(r"(\d+)S"),
2799
datetime.timedelta(seconds=1),
2800
frozenset((token_end, )))
2801
token_minute = Token(re.compile(r"(\d+)M"),
2802
datetime.timedelta(minutes=1),
2803
frozenset((token_second, token_end)))
2804
token_hour = Token(re.compile(r"(\d+)H"),
2805
datetime.timedelta(hours=1),
2806
frozenset((token_minute, token_end)))
2807
token_time = Token(re.compile(r"T"),
2808
None,
2809
frozenset((token_hour, token_minute,
2810
token_second)))
2811
token_day = Token(re.compile(r"(\d+)D"),
2812
datetime.timedelta(days=1),
2813
frozenset((token_time, token_end)))
2814
token_month = Token(re.compile(r"(\d+)M"),
2815
datetime.timedelta(weeks=4),
2816
frozenset((token_day, token_end)))
2817
token_year = Token(re.compile(r"(\d+)Y"),
2818
datetime.timedelta(weeks=52),
2819
frozenset((token_month, token_end)))
2820
token_week = Token(re.compile(r"(\d+)W"),
2821
datetime.timedelta(weeks=1),
2822
frozenset((token_end, )))
2823
token_duration = Token(re.compile(r"P"), None,
2824
frozenset((token_year, token_month,
2825
token_day, token_time,
2826
token_week)))
2827
# Define starting values:
2828
# Value so far
2829
value = datetime.timedelta()
2830
found_token = None
2831
# Following valid tokens
2832
followers = frozenset((token_duration, ))
2833
# String left to parse
2834
s = duration
2835
# Loop until end token is found
2836
while found_token is not token_end:
2837
# Search for any currently valid tokens
2838
for token in followers:
2839
match = token.regexp.match(s)
2840
if match is not None:
2841
# Token found
2842
if token.value is not None:
2843
# Value found, parse digits
2844
factor = int(match.group(1), 10)
2845
# Add to value so far
2846
value += factor * token.value
2847
# Strip token from string
2848
s = token.regexp.sub("", s, 1)
2849
# Go to found token
2850
found_token = token
2851
# Set valid next tokens
2852
followers = found_token.followers
2853
break
2854
else:
2855
# No currently valid tokens were found
2856
raise ValueError("Invalid RFC 3339 duration: {!r}"
2857
.format(duration))
2858
# End token found
2859
return value
2860
2861
2862
1911
def string_to_delta(interval):
2863
1912
"""Parse a string and return a datetime.timedelta
2864
2865
>>> string_to_delta('7d') == datetime.timedelta(7)
2866
True
2867
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2868
True
2869
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2870
True
2871
>>> string_to_delta('24h') == datetime.timedelta(1)
2872
True
2873
>>> string_to_delta('1w') == datetime.timedelta(7)
2874
True
2875
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2876
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)
2877
1926
"""
2878
2879
try:
2880
return rfc3339_duration_to_delta(interval)
2881
except ValueError:
2882
pass
2883
2884
1927
timevalue = datetime.timedelta(0)
2885
1928
for s in interval.split():
2886
1929
try:
2887
suffix = s[-1]
1930
suffix = unicode(s[-1])
2888
1931
value = int(s[:-1])
2889
1932
if suffix == "d":
2890
1933
delta = datetime.timedelta(value)
2897
1940
elif suffix == "w":
2898
1941
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2899
1942
else:
2900
raise ValueError("Unknown suffix {!r}".format(suffix))
2901
except IndexError as e:
1943
raise ValueError("Unknown suffix %r" % suffix)
1944
except (ValueError, IndexError) as e:
2902
1945
raise ValueError(*(e.args))
2903
1946
timevalue += delta
2904
1947
return timevalue
2905
1948
2906
1949
2907
def daemon(nochdir=False, noclose=False):
1950
def daemon(nochdir = False, noclose = False):
2908
1951
"""See daemon(3). Standard BSD Unix function.
2909
1952
2910
1953
This should really exist as os.daemon, but it doesn't (yet)."""
2911
1954
if os.fork():
2912
1955
sys.exit()
2917
1960
sys.exit()
2918
1961
if not noclose:
2919
1962
# Close all standard open file descriptors
2920
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1963
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2921
1964
if not stat.S_ISCHR(os.fstat(null).st_mode):
2922
1965
raise OSError(errno.ENODEV,
2923
"{} not a character device"
2924
.format(os.devnull))
1966
"%s not a character device"
1967
% os.path.devnull)
2925
1968
os.dup2(null, sys.stdin.fileno())
2926
1969
os.dup2(null, sys.stdout.fileno())
2927
1970
os.dup2(null, sys.stderr.fileno())
2930
1973
2931
1974
2932
1975
def main():
2933
1976
2934
1977
##################################################################
2935
1978
# Parsing of options, both command line and config file
2936
1979
2937
1980
parser = argparse.ArgumentParser()
2938
1981
parser.add_argument("-v", "--version", action="version",
2939
version="%(prog)s {}".format(version),
1982
version = "%%(prog)s %s" % version,
2940
1983
help="show version number and exit")
2941
1984
parser.add_argument("-i", "--interface", metavar="IF",
2942
1985
help="Bind to interface IF")
2948
1991
help="Run self-test")
2949
1992
parser.add_argument("--debug", action="store_true",
2950
1993
help="Debug mode; run in foreground and log"
2951
" to terminal", default=None)
1994
" to terminal")
2952
1995
parser.add_argument("--debuglevel", metavar="LEVEL",
2953
1996
help="Debug level for stdout output")
2954
1997
parser.add_argument("--priority", help="GnuTLS"
2961
2004
" files")
2962
2005
parser.add_argument("--no-dbus", action="store_false",
2963
2006
dest="use_dbus", help="Do not provide D-Bus"
2964
" system bus interface", default=None)
2007
" system bus interface")
2965
2008
parser.add_argument("--no-ipv6", action="store_false",
2966
dest="use_ipv6", help="Do not use IPv6",
2967
default=None)
2009
dest="use_ipv6", help="Do not use IPv6")
2968
2010
parser.add_argument("--no-restore", action="store_false",
2969
2011
dest="restore", help="Do not restore stored"
2970
" state", default=None)
2971
parser.add_argument("--socket", type=int,
2972
help="Specify a file descriptor to a network"
2973
" socket to use instead of creating one")
2012
" state")
2974
2013
parser.add_argument("--statedir", metavar="DIR",
2975
2014
help="Directory to save/restore state in")
2976
parser.add_argument("--foreground", action="store_true",
2977
help="Run in foreground", default=None)
2978
parser.add_argument("--no-zeroconf", action="store_false",
2979
dest="zeroconf", help="Do not use Zeroconf",
2980
default=None)
2981
2015
2982
2016
options = parser.parse_args()
2983
2017
2018
if options.check:
2019
import doctest
2020
doctest.testmod()
2021
sys.exit()
2022
2984
2023
# Default values for config file for server-global settings
2985
if gnutls.has_rawpk:
2986
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2987
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2988
else:
2989
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2990
":+SIGN-DSA-SHA256")
2991
server_defaults = {"interface": "",
2992
"address": "",
2993
"port": "",
2994
"debug": "False",
2995
"priority": priority,
2996
"servicename": "Mandos",
2997
"use_dbus": "True",
2998
"use_ipv6": "True",
2999
"debuglevel": "",
3000
"restore": "True",
3001
"socket": "",
3002
"statedir": "/var/lib/mandos",
3003
"foreground": "False",
3004
"zeroconf": "True",
3005
}
3006
del priority
3007
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
3008
2038
# Parse config file for server-global settings
3009
server_config = configparser.ConfigParser(server_defaults)
2039
server_config = configparser.SafeConfigParser(server_defaults)
3010
2040
del server_defaults
3011
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3012
# 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
3013
2044
server_settings = server_config.defaults()
3014
2045
# Use the appropriate methods on the non-string config options
3015
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3016
"foreground", "zeroconf"):
2046
for option in ("debug", "use_dbus", "use_ipv6"):
3017
2047
server_settings[option] = server_config.getboolean("DEFAULT",
3018
2048
option)
3019
2049
if server_settings["port"]:
3020
2050
server_settings["port"] = server_config.getint("DEFAULT",
3021
2051
"port")
3022
if server_settings["socket"]:
3023
server_settings["socket"] = server_config.getint("DEFAULT",
3024
"socket")
3025
# Later, stdin will, and stdout and stderr might, be dup'ed
3026
# over with an opened os.devnull. But we don't want this to
3027
# happen with a supplied network socket.
3028
if 0 <= server_settings["socket"] <= 2:
3029
server_settings["socket"] = os.dup(server_settings
3030
["socket"])
3031
2052
del server_config
3032
2053
3033
2054
# Override the settings from the config file with command line
3034
2055
# options, if set.
3035
2056
for option in ("interface", "address", "port", "debug",
3036
"priority", "servicename", "configdir", "use_dbus",
3037
"use_ipv6", "debuglevel", "restore", "statedir",
3038
"socket", "foreground", "zeroconf"):
2057
"priority", "servicename", "configdir",
2058
"use_dbus", "use_ipv6", "debuglevel", "restore",
2059
"statedir"):
3039
2060
value = getattr(options, option)
3040
2061
if value is not None:
3041
2062
server_settings[option] = value
3042
2063
del options
3043
2064
# Force all strings to be unicode
3044
2065
for option in server_settings.keys():
3045
if isinstance(server_settings[option], bytes):
3046
server_settings[option] = (server_settings[option]
3047
.decode("utf-8"))
3048
# Force all boolean options to be boolean
3049
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3050
"foreground", "zeroconf"):
3051
server_settings[option] = bool(server_settings[option])
3052
# Debug implies foreground
3053
if server_settings["debug"]:
3054
server_settings["foreground"] = True
2066
if type(server_settings[option]) is str:
2067
server_settings[option] = unicode(server_settings[option])
3055
2068
# Now we have our good server settings in "server_settings"
3056
2069
3057
2070
##################################################################
3058
3059
if (not server_settings["zeroconf"]
3060
and not (server_settings["port"]
3061
or server_settings["socket"] != "")):
3062
parser.error("Needs port or socket to work without Zeroconf")
3063
2071
3064
2072
# For convenience
3065
2073
debug = server_settings["debug"]
3066
2074
debuglevel = server_settings["debuglevel"]
3068
2076
use_ipv6 = server_settings["use_ipv6"]
3069
2077
stored_state_path = os.path.join(server_settings["statedir"],
3070
2078
stored_state_file)
3071
foreground = server_settings["foreground"]
3072
zeroconf = server_settings["zeroconf"]
3073
2079
3074
2080
if debug:
3075
initlogger(debug, logging.DEBUG)
2081
initlogger(logging.DEBUG)
3076
2082
else:
3077
2083
if not debuglevel:
3078
initlogger(debug)
2084
initlogger()
3079
2085
else:
3080
2086
level = getattr(logging, debuglevel.upper())
3081
initlogger(debug, level)
3082
2087
initlogger(level)
2088
3083
2089
if server_settings["servicename"] != "Mandos":
3084
syslogger.setFormatter(
3085
logging.Formatter('Mandos ({}) [%(process)d]:'
3086
' %(levelname)s: %(message)s'.format(
3087
server_settings["servicename"])))
3088
2090
syslogger.setFormatter(logging.Formatter
2091
('Mandos (%s) [%%(process)d]:'
2092
' %%(levelname)s: %%(message)s'
2093
% server_settings["servicename"]))
2094
3089
2095
# Parse config file with clients
3090
client_config = configparser.ConfigParser(Client.client_defaults)
2096
client_config = configparser.SafeConfigParser(Client.client_defaults)
3091
2097
client_config.read(os.path.join(server_settings["configdir"],
3092
2098
"clients.conf"))
3093
2099
3094
2100
global mandos_dbus_service
3095
2101
mandos_dbus_service = None
3096
3097
socketfd = None
3098
if server_settings["socket"] != "":
3099
socketfd = server_settings["socket"]
3100
tcp_server = MandosServer(
3101
(server_settings["address"], server_settings["port"]),
3102
ClientHandler,
3103
interface=(server_settings["interface"] or None),
3104
use_ipv6=use_ipv6,
3105
gnutls_priority=server_settings["priority"],
3106
use_dbus=use_dbus,
3107
socketfd=socketfd)
3108
if not foreground:
3109
pidfilename = "/run/mandos.pid"
3110
if not os.path.isdir("/run/."):
3111
pidfilename = "/var/run/mandos.pid"
3112
pidfile = None
3113
try:
3114
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3115
except IOError as e:
3116
logger.error("Could not open file %r", pidfilename,
3117
exc_info=e)
3118
3119
for name, group in (("_mandos", "_mandos"),
3120
("mandos", "mandos"),
3121
("nobody", "nogroup")):
3122
try:
3123
uid = pwd.getpwnam(name).pw_uid
3124
gid = pwd.getpwnam(group).pw_gid
3125
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
3126
2126
except KeyError:
3127
continue
3128
else:
3129
uid = 65534
3130
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
3131
2133
try:
3132
2134
os.setgid(gid)
3133
2135
os.setuid(uid)
3134
if debug:
3135
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3136
gid))
3137
2136
except OSError as error:
3138
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3139
.format(uid, gid, os.strerror(error.errno)))
3140
if error.errno != errno.EPERM:
3141
raise
3142
2137
if error[0] != errno.EPERM:
2138
raise error
2139
3143
2140
if debug:
3144
2141
# Enable all possible GnuTLS debugging
3145
2142
3146
2143
# "Use a log level over 10 to enable all debugging options."
3147
2144
# - GnuTLS manual
3148
gnutls.global_set_log_level(11)
3149
3150
@gnutls.log_func
2145
gnutls.library.functions.gnutls_global_set_log_level(11)
2146
2147
@gnutls.library.types.gnutls_log_func
3151
2148
def debug_gnutls(level, string):
3152
2149
logger.debug("GnuTLS: %s", string[:-1])
3153
3154
gnutls.global_set_log_function(debug_gnutls)
3155
2150
2151
(gnutls.library.functions
2152
.gnutls_global_set_log_function(debug_gnutls))
2153
3156
2154
# Redirect stdin so all checkers get /dev/null
3157
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2155
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3158
2156
os.dup2(null, sys.stdin.fileno())
3159
2157
if null > 2:
3160
2158
os.close(null)
3161
2159
else:
2160
# No console logging
2161
logger.removeHandler(console)
2162
3162
2163
# Need to fork before connecting to D-Bus
3163
if not foreground:
2164
if not debug:
3164
2165
# Close all input and output, do double fork, etc.
3165
2166
daemon()
3166
3167
if gi.version_info < (3, 10, 2):
3168
# multiprocessing will use threads, so before we use GLib we
3169
# need to inform GLib that threads will be used.
3170
GLib.threads_init()
3171
2167
3172
2168
global main_loop
3173
2169
# From the Avahi example code
3174
DBusGMainLoop(set_as_default=True)
3175
main_loop = GLib.MainLoop()
2170
DBusGMainLoop(set_as_default=True )
2171
main_loop = gobject.MainLoop()
3176
2172
bus = dbus.SystemBus()
3177
2173
# End of Avahi example code
3178
2174
if use_dbus:
3179
2175
try:
3180
2176
bus_name = dbus.service.BusName("se.recompile.Mandos",
3181
bus,
3182
do_not_queue=True)
3183
old_bus_name = dbus.service.BusName(
3184
"se.bsnet.fukt.Mandos", bus,
3185
do_not_queue=True)
3186
except dbus.exceptions.DBusException as e:
3187
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")
3188
2183
use_dbus = False
3189
2184
server_settings["use_dbus"] = False
3190
2185
tcp_server.use_dbus = False
3191
if zeroconf:
3192
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3193
service = AvahiServiceToSyslog(
3194
name=server_settings["servicename"],
3195
servicetype="_mandos._tcp",
3196
protocol=protocol,
3197
bus=bus)
3198
if server_settings["interface"]:
3199
service.interface = if_nametoindex(
3200
server_settings["interface"].encode("utf-8"))
3201
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
3202
2195
global multiprocessing_manager
3203
2196
multiprocessing_manager = multiprocessing.Manager()
3204
2197
3205
2198
client_class = Client
3206
2199
if use_dbus:
3207
client_class = functools.partial(ClientDBus, bus=bus)
3208
2200
client_class = functools.partial(ClientDBusTransitional,
2201
bus = bus)
2202
3209
2203
client_settings = Client.config_parser(client_config)
3210
2204
old_client_settings = {}
3211
2205
clients_data = {}
3212
3213
# This is used to redirect stdout and stderr for checker processes
3214
global wnull
3215
wnull = open(os.devnull, "w") # A writable /dev/null
3216
# Only used if server is running in foreground but not in debug
3217
# mode
3218
if debug or not foreground:
3219
wnull.close()
3220
2206
3221
2207
# Get client data and settings from last running state.
3222
2208
if server_settings["restore"]:
3223
2209
try:
3224
2210
with open(stored_state_path, "rb") as stored_state:
3225
if sys.version_info.major == 2:
3226
clients_data, old_client_settings = pickle.load(
3227
stored_state)
3228
else:
3229
bytes_clients_data, bytes_old_client_settings = (
3230
pickle.load(stored_state, encoding="bytes"))
3231
# Fix bytes to strings
3232
# clients_data
3233
# .keys()
3234
clients_data = {(key.decode("utf-8")
3235
if isinstance(key, bytes)
3236
else key): value
3237
for key, value in
3238
bytes_clients_data.items()}
3239
del bytes_clients_data
3240
for key in clients_data:
3241
value = {(k.decode("utf-8")
3242
if isinstance(k, bytes) else k): v
3243
for k, v in
3244
clients_data[key].items()}
3245
clients_data[key] = value
3246
# .client_structure
3247
value["client_structure"] = [
3248
(s.decode("utf-8")
3249
if isinstance(s, bytes)
3250
else s) for s in
3251
value["client_structure"]]
3252
# .name, .host, and .checker_command
3253
for k in ("name", "host", "checker_command"):
3254
if isinstance(value[k], bytes):
3255
value[k] = value[k].decode("utf-8")
3256
if "key_id" not in value:
3257
value["key_id"] = ""
3258
elif "fingerprint" not in value:
3259
value["fingerprint"] = ""
3260
# old_client_settings
3261
# .keys()
3262
old_client_settings = {
3263
(key.decode("utf-8")
3264
if isinstance(key, bytes)
3265
else key): value
3266
for key, value in
3267
bytes_old_client_settings.items()}
3268
del bytes_old_client_settings
3269
# .host and .checker_command
3270
for value in old_client_settings.values():
3271
for attribute in ("host", "checker_command"):
3272
if isinstance(value[attribute], bytes):
3273
value[attribute] = (value[attribute]
3274
.decode("utf-8"))
2211
clients_data, old_client_settings = (pickle.load
2212
(stored_state))
3275
2213
os.remove(stored_state_path)
3276
2214
except IOError as e:
3277
if e.errno == errno.ENOENT:
3278
logger.warning("Could not load persistent state:"
3279
" {}".format(os.strerror(e.errno)))
3280
else:
3281
logger.critical("Could not load persistent state:",
3282
exc_info=e)
2215
logger.warning("Could not load persistent state: {0}"
2216
.format(e))
2217
if e.errno != errno.ENOENT:
3283
2218
raise
3284
except EOFError as e:
3285
logger.warning("Could not load persistent state: "
3286
"EOFError:",
3287
exc_info=e)
3288
2219
3289
2220
with PGPEngine() as pgp:
3290
for client_name, client in clients_data.items():
3291
# Skip removed clients
3292
if client_name not in client_settings:
3293
continue
3294
2221
for client_name, client in clients_data.iteritems():
3295
2222
# Decide which value to use after restoring saved state.
3296
2223
# We have three different values: Old config file,
3297
2224
# new config file, and saved state.
3302
2229
# For each value in new config, check if it
3303
2230
# differs from the old config value (Except for
3304
2231
# the "secret" attribute)
3305
if (name != "secret"
3306
and (value !=
3307
old_client_settings[client_name][name])):
2232
if (name != "secret" and
2233
value != old_client_settings[client_name]
2234
[name]):
3308
2235
client[name] = value
3309
2236
except KeyError:
3310
2237
pass
3311
2238
3312
2239
# Clients who has passed its expire date can still be
3313
# enabled if its last checker was successful. A Client
3314
# whose checker succeeded before we stored its state is
3315
# assumed to have successfully run all checkers during
3316
# 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.
3317
2243
if client["enabled"]:
3318
2244
if datetime.datetime.utcnow() >= client["expires"]:
3319
2245
if not client["last_checked_ok"]:
3320
2246
logger.warning(
3321
"disabling client {} - Client never "
3322
"performed a successful checker".format(
3323
client_name))
2247
"disabling client {0} - Client never "
2248
"performed a successfull checker"
2249
.format(client["name"]))
3324
2250
client["enabled"] = False
3325
2251
elif client["last_checker_status"] != 0:
3326
2252
logger.warning(
3327
"disabling client {} - Client last"
3328
" checker failed with error code"
3329
" {}".format(
3330
client_name,
3331
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"]))
3332
2257
client["enabled"] = False
3333
2258
else:
3334
client["expires"] = (
3335
datetime.datetime.utcnow()
3336
+ client["timeout"])
3337
logger.debug("Last checker succeeded,"
3338
" keeping {} enabled".format(
3339
client_name))
2259
client["expires"] = (datetime.datetime
2260
.utcnow()
2261
+ client["timeout"])
2262
3340
2263
try:
3341
client["secret"] = pgp.decrypt(
3342
client["encrypted_secret"],
3343
client_settings[client_name]["secret"])
2264
client["secret"] = (
2265
pgp.decrypt(client["encrypted_secret"],
2266
client_settings[client_name]
2267
["secret"]))
3344
2268
except PGPError:
3345
2269
# If decryption fails, we use secret from new settings
3346
logger.debug("Failed to decrypt {} old secret".format(
3347
client_name))
3348
client["secret"] = (client_settings[client_name]
3349
["secret"])
2270
logger.debug("Failed to decrypt {0} old secret"
2271
.format(client_name))
2272
client["secret"] = (
2273
client_settings[client_name]["secret"])
3350
2274
2275
3351
2276
# Add/remove clients based on new changes made to config
3352
for client_name in (set(old_client_settings)
3353
- set(client_settings)):
2277
for client_name in set(old_client_settings) - set(client_settings):
3354
2278
del clients_data[client_name]
3355
for client_name in (set(client_settings)
3356
- set(old_client_settings)):
2279
for client_name in set(client_settings) - set(old_client_settings):
3357
2280
clients_data[client_name] = client_settings[client_name]
3358
2281
3359
# Create all client objects
3360
for client_name, client in clients_data.items():
2282
# Create clients all clients
2283
for client_name, client in clients_data.iteritems():
3361
2284
tcp_server.clients[client_name] = client_class(
3362
name=client_name,
3363
settings=client,
3364
server_settings=server_settings)
3365
2285
name = client_name, settings = client)
2286
3366
2287
if not tcp_server.clients:
3367
2288
logger.warning("No clients defined")
3368
3369
if not foreground:
3370
if pidfile is not None:
3371
pid = os.getpid()
3372
try:
3373
with pidfile:
3374
print(pid, file=pidfile)
3375
except IOError:
3376
logger.error("Could not write to file %r with PID %d",
3377
pidfilename, pid)
3378
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
3379
2302
del pidfilename
3380
3381
for termsig in (signal.SIGHUP, signal.SIGTERM):
3382
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3383
lambda: main_loop.quit() and False)
3384
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
3385
2308
if use_dbus:
3386
3387
@alternate_dbus_interfaces(
3388
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3389
class MandosDBusService(DBusObjectWithObjectManager):
2309
class MandosDBusService(dbus.service.Object):
3390
2310
"""A D-Bus proxy object"""
3391
3392
2311
def __init__(self):
3393
2312
dbus.service.Object.__init__(self, bus, "/")
3394
3395
2313
_interface = "se.recompile.Mandos"
3396
2314
3397
2315
@dbus.service.signal(_interface, signature="o")
3398
2316
def ClientAdded(self, objpath):
3399
2317
"D-Bus signal"
3400
2318
pass
3401
2319
3402
2320
@dbus.service.signal(_interface, signature="ss")
3403
def ClientNotFound(self, key_id, address):
2321
def ClientNotFound(self, fingerprint, address):
3404
2322
"D-Bus signal"
3405
2323
pass
3406
3407
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3408
"true"})
2324
3409
2325
@dbus.service.signal(_interface, signature="os")
3410
2326
def ClientRemoved(self, objpath, name):
3411
2327
"D-Bus signal"
3412
2328
pass
3413
3414
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3415
"true"})
2329
3416
2330
@dbus.service.method(_interface, out_signature="ao")
3417
2331
def GetAllClients(self):
3418
2332
"D-Bus method"
3419
return dbus.Array(c.dbus_object_path for c in
3420
tcp_server.clients.values())
3421
3422
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3423
"true"})
2333
return dbus.Array(c.dbus_object_path
2334
for c in
2335
tcp_server.clients.itervalues())
2336
3424
2337
@dbus.service.method(_interface,
3425
2338
out_signature="a{oa{sv}}")
3426
2339
def GetAllClientsWithProperties(self):
3427
2340
"D-Bus method"
3428
2341
return dbus.Dictionary(
3429
{c.dbus_object_path: c.GetAll(
3430
"se.recompile.Mandos.Client")
3431
for c in tcp_server.clients.values()},
2342
((c.dbus_object_path, c.GetAll(""))
2343
for c in tcp_server.clients.itervalues()),
3432
2344
signature="oa{sv}")
3433
2345
3434
2346
@dbus.service.method(_interface, in_signature="o")
3435
2347
def RemoveClient(self, object_path):
3436
2348
"D-Bus method"
3437
for c in tcp_server.clients.values():
2349
for c in tcp_server.clients.itervalues():
3438
2350
if c.dbus_object_path == object_path:
3439
2351
del tcp_server.clients[c.name]
3440
2352
c.remove_from_connection()
3441
# Don't signal the disabling
2353
# Don't signal anything except ClientRemoved
3442
2354
c.disable(quiet=True)
3443
# Emit D-Bus signal for removal
3444
self.client_removed_signal(c)
2355
# Emit D-Bus signal
2356
self.ClientRemoved(object_path, c.name)
3445
2357
return
3446
2358
raise KeyError(object_path)
3447
2359
3448
2360
del _interface
3449
3450
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3451
out_signature="a{oa{sa{sv}}}")
3452
def GetManagedObjects(self):
3453
"""D-Bus method"""
3454
return dbus.Dictionary(
3455
{client.dbus_object_path:
3456
dbus.Dictionary(
3457
{interface: client.GetAll(interface)
3458
for interface in
3459
client._get_all_interface_names()})
3460
for client in tcp_server.clients.values()})
3461
3462
def client_added_signal(self, client):
3463
"""Send the new standard signal and the old signal"""
3464
if use_dbus:
3465
# New standard signal
3466
self.InterfacesAdded(
3467
client.dbus_object_path,
3468
dbus.Dictionary(
3469
{interface: client.GetAll(interface)
3470
for interface in
3471
client._get_all_interface_names()}))
3472
# Old signal
3473
self.ClientAdded(client.dbus_object_path)
3474
3475
def client_removed_signal(self, client):
3476
"""Send the new standard signal and the old signal"""
3477
if use_dbus:
3478
# New standard signal
3479
self.InterfacesRemoved(
3480
client.dbus_object_path,
3481
client._get_all_interface_names())
3482
# Old signal
3483
self.ClientRemoved(client.dbus_object_path,
3484
client.name)
3485
3486
mandos_dbus_service = MandosDBusService()
3487
3488
# Save modules to variables to exempt the modules from being
3489
# unloaded before the function registered with atexit() is run.
3490
mp = multiprocessing
3491
wn = wnull
3492
2361
2362
class MandosDBusServiceTransitional(MandosDBusService):
2363
__metaclass__ = AlternateDBusNamesMetaclass
2364
mandos_dbus_service = MandosDBusServiceTransitional()
2365
3493
2366
def cleanup():
3494
2367
"Cleanup function; run on exit"
3495
if zeroconf:
3496
service.cleanup()
3497
3498
mp.active_children()
3499
wn.close()
2368
service.cleanup()
2369
2370
multiprocessing.active_children()
3500
2371
if not (tcp_server.clients or client_settings):
3501
2372
return
3502
2373
3503
2374
# Store client before exiting. Secrets are encrypted with key
3504
2375
# based on what config file has. If config file is
3505
2376
# removed/edited, old secret will thus be unrecovable.
3506
2377
clients = {}
3507
2378
with PGPEngine() as pgp:
3508
for client in tcp_server.clients.values():
2379
for client in tcp_server.clients.itervalues():
3509
2380
key = client_settings[client.name]["secret"]
3510
2381
client.encrypted_secret = pgp.encrypt(client.secret,
3511
2382
key)
3512
2383
client_dict = {}
3513
2384
3514
2385
# A list of attributes that can not be pickled
3515
2386
# + secret.
3516
exclude = {"bus", "changedstate", "secret",
3517
"checker", "server_settings"}
3518
for name, typ in inspect.getmembers(dbus.service
3519
.Object):
2387
exclude = set(("bus", "changedstate", "secret",
2388
"checker"))
2389
for name, typ in (inspect.getmembers
2390
(dbus.service.Object)):
3520
2391
exclude.add(name)
3521
2392
3522
2393
client_dict["encrypted_secret"] = (client
3523
2394
.encrypted_secret)
3524
2395
for attr in client.client_structure:
3525
2396
if attr not in exclude:
3526
2397
client_dict[attr] = getattr(client, attr)
3527
2398
3528
2399
clients[client.name] = client_dict
3529
2400
del client_settings[client.name]["secret"]
3530
2401
3531
2402
try:
3532
with tempfile.NamedTemporaryFile(
3533
mode='wb',
3534
suffix=".pickle",
3535
prefix='clients-',
3536
dir=os.path.dirname(stored_state_path),
3537
delete=False) as stored_state:
3538
pickle.dump((clients, client_settings), stored_state,
3539
protocol=2)
3540
tempname = stored_state.name
3541
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)
3542
2407
except (IOError, OSError) as e:
3543
if not debug:
3544
try:
3545
os.remove(tempname)
3546
except NameError:
3547
pass
3548
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3549
logger.warning("Could not save persistent state: {}"
3550
.format(os.strerror(e.errno)))
3551
else:
3552
logger.warning("Could not save persistent state:",
3553
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):
3554
2411
raise
3555
2412
3556
2413
# Delete all clients, and settings from config
3557
2414
while tcp_server.clients:
3558
2415
name, client = tcp_server.clients.popitem()
3559
2416
if use_dbus:
3560
2417
client.remove_from_connection()
3561
# Don't signal the disabling
2418
# Don't signal anything except ClientRemoved
3562
2419
client.disable(quiet=True)
3563
# Emit D-Bus signal for removal
3564
2420
if use_dbus:
3565
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)
3566
2425
client_settings.clear()
3567
2426
3568
2427
atexit.register(cleanup)
3569
3570
for client in tcp_server.clients.values():
2428
2429
for client in tcp_server.clients.itervalues():
3571
2430
if use_dbus:
3572
# Emit D-Bus signal for adding
3573
mandos_dbus_service.client_added_signal(client)
2431
# Emit D-Bus signal
2432
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3574
2433
# Need to initiate checking of clients
3575
2434
if client.enabled:
3576
2435
client.init_checker()
3577
2436
3578
2437
tcp_server.enable()
3579
2438
tcp_server.server_activate()
3580
2439
3581
2440
# Find out what port we got
3582
if zeroconf:
3583
service.port = tcp_server.socket.getsockname()[1]
2441
service.port = tcp_server.socket.getsockname()[1]
3584
2442
if use_ipv6:
3585
2443
logger.info("Now listening on address %r, port %d,"
3586
" flowinfo %d, scope_id %d",
3587
*tcp_server.socket.getsockname())
2444
" flowinfo %d, scope_id %d"
2445
% tcp_server.socket.getsockname())
3588
2446
else: # IPv4
3589
logger.info("Now listening on address %r, port %d",
3590
*tcp_server.socket.getsockname())
3591
3592
# service.interface = tcp_server.socket.getsockname()[3]
3593
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
3594
2452
try:
3595
if zeroconf:
3596
# From the Avahi example code
3597
try:
3598
service.activate()
3599
except dbus.exceptions.DBusException as error:
3600
logger.critical("D-Bus Exception", exc_info=error)
3601
cleanup()
3602
sys.exit(1)
3603
# End of Avahi example code
3604
3605
GLib.io_add_watch(
3606
GLib.IOChannel.unix_new(tcp_server.fileno()),
3607
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3608
lambda *args, **kwargs: (tcp_server.handle_request
3609
(*args[2:], **kwargs) or True))
3610
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
3611
2467
logger.debug("Starting main loop")
3612
2468
main_loop.run()
3613
2469
except AvahiError as error:
3614
logger.critical("Avahi Error", exc_info=error)
2470
logger.critical("AvahiError: %s", error)
3615
2471
cleanup()
3616
2472
sys.exit(1)
3617
2473
except KeyboardInterrupt:
3622
2478
# Must run before the D-Bus bus name gets deregistered
3623
2479
cleanup()
3624
2480
3625
3626
def should_only_run_tests():
3627
parser = argparse.ArgumentParser(add_help=False)
3628
parser.add_argument("--check", action='store_true')
3629
args, unknown_args = parser.parse_known_args()
3630
run_tests = args.check
3631
if run_tests:
3632
# Remove --check argument from sys.argv
3633
sys.argv[1:] = unknown_args
3634
return run_tests
3635
3636
# Add all tests from doctest strings
3637
def load_tests(loader, tests, none):
3638
import doctest
3639
tests.addTests(doctest.DocTestSuite())
3640
return tests
3641
3642
2481
if __name__ == '__main__':
3643
try:
3644
if should_only_run_tests():
3645
# Call using ./mandos --check [--verbose]
3646
unittest.main()
3647
else:
3648
main()
3649
finally:
3650
logging.shutdown()
2482
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0