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- Committer: teddy at recompile
- Date: 2011-12-31 13:25:58 UTC
- mto: This revision was merged to the branch mainline in revision 541.
- Revision ID: teddy@recompile.se-20111231132558-z0dh7qgofgctmgri
* network-hooks.s/bridge: Don't use interface names directly; search
for interface names using their address.
(addrtoif): New function.
* network-hooks.s/bridge.conf (PORTS): Removed.
(PORT_ADDRESSES): New.
* network-hooks.s/wireless: Don't use interface names directly; search
for interface names using their address.
(addrtoif): New function.
* network-hooks.s/wireless.conf: Specify address.
for interface names using their address.
(addrtoif): New function.
* network-hooks.s/bridge.conf (PORTS): Removed.
(PORT_ADDRESSES): New.
* network-hooks.s/wireless: Don't use interface names directly; search
for interface names using their address.
(addrtoif): New function.
* network-hooks.s/wireless.conf: Specify address.
- 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
113
def initlogger(debug, 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
120
179
121
if debug:
180
122
console = logging.StreamHandler()
181
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
191
133
pass
192
134
193
135
194
class PGPEngine:
136
class PGPEngine(object):
195
137
"""A simple class for OpenPGP symmetric encryption & decryption"""
196
197
138
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
198
140
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
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
145
'--quiet'])
146
218
147
def __enter__(self):
219
148
return self
220
221
def __exit__(self, exc_type, exc_value, traceback):
149
150
def __exit__ (self, exc_type, exc_value, traceback):
222
151
self._cleanup()
223
152
return False
224
153
225
154
def __del__(self):
226
155
self._cleanup()
227
156
228
157
def _cleanup(self):
229
158
if self.tempdir is not None:
230
159
# Delete contents of tempdir
231
160
for root, dirs, files in os.walk(self.tempdir,
232
topdown=False):
161
topdown = False):
233
162
for filename in files:
234
163
os.remove(os.path.join(root, filename))
235
164
for dirname in dirs:
237
166
# Remove tempdir
238
167
os.rmdir(self.tempdir)
239
168
self.tempdir = None
240
169
241
170
def password_encode(self, password):
242
171
# Passphrase can not be empty and can not contain newlines or
243
172
# 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
173
return b"mandos" + binascii.hexlify(password)
174
252
175
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)
176
self.gnupg.passphrase = self.password_encode(password)
177
with open(os.devnull) as devnull:
178
try:
179
proc = self.gnupg.run(['--symmetric'],
180
create_fhs=['stdin', 'stdout'],
181
attach_fhs={'stderr': devnull})
182
with contextlib.closing(proc.handles['stdin']) as f:
183
f.write(data)
184
with contextlib.closing(proc.handles['stdout']) as f:
185
ciphertext = f.read()
186
proc.wait()
187
except IOError as e:
188
raise PGPError(e)
189
self.gnupg.passphrase = None
268
190
return ciphertext
269
191
270
192
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)
193
self.gnupg.passphrase = self.password_encode(password)
194
with open(os.devnull) as devnull:
195
try:
196
proc = self.gnupg.run(['--decrypt'],
197
create_fhs=['stdin', 'stdout'],
198
attach_fhs={'stderr': devnull})
199
with contextlib.closing(proc.handles['stdin'] ) as f:
200
f.write(data)
201
with contextlib.closing(proc.handles['stdout']) as f:
202
decrypted_plaintext = f.read()
203
proc.wait()
204
except IOError as e:
205
raise PGPError(e)
206
self.gnupg.passphrase = None
286
207
return decrypted_plaintext
287
208
288
209
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
210
315
211
class AvahiError(Exception):
316
212
def __init__(self, value, *args, **kwargs):
317
213
self.value = value
318
return super(AvahiError, self).__init__(value, *args,
319
**kwargs)
320
214
super(AvahiError, self).__init__(value, *args, **kwargs)
215
def __unicode__(self):
216
return unicode(repr(self.value))
321
217
322
218
class AvahiServiceError(AvahiError):
323
219
pass
324
220
325
326
221
class AvahiGroupError(AvahiError):
327
222
pass
328
223
329
224
330
class AvahiService:
225
class AvahiService(object):
331
226
"""An Avahi (Zeroconf) service.
332
227
333
228
Attributes:
334
229
interface: integer; avahi.IF_UNSPEC or an interface index.
335
230
Used to optionally bind to the specified interface.
336
231
name: string; Example: 'Mandos'
337
232
type: string; Example: '_mandos._tcp'.
338
See <https://www.iana.org/assignments/service-names-port-numbers>
233
See <http://www.dns-sd.org/ServiceTypes.html>
339
234
port: integer; what port to announce
340
235
TXT: list of strings; TXT record for the service
341
236
domain: string; Domain to publish on, default to .local if empty.
347
242
server: D-Bus Server
348
243
bus: dbus.SystemBus()
349
244
"""
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):
245
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
246
servicetype = None, port = None, TXT = None,
247
domain = "", host = "", max_renames = 32768,
248
protocol = avahi.PROTO_UNSPEC, bus = None):
362
249
self.interface = interface
363
250
self.name = name
364
251
self.type = servicetype
373
260
self.server = None
374
261
self.bus = bus
375
262
self.entry_group_state_changed_match = None
376
377
def rename(self, remove=True):
263
def rename(self):
378
264
"""Derived from the Avahi example code"""
379
265
if self.rename_count >= self.max_renames:
380
266
logger.critical("No suitable Zeroconf service name found"
381
267
" after %i retries, exiting.",
382
268
self.rename_count)
383
269
raise AvahiServiceError("Too many renames")
384
self.name = str(
385
self.server.GetAlternativeServiceName(self.name))
386
self.rename_count += 1
270
self.name = unicode(self.server
271
.GetAlternativeServiceName(self.name))
387
272
logger.info("Changing Zeroconf service name to %r ...",
388
273
self.name)
389
if remove:
390
self.remove()
274
self.remove()
391
275
try:
392
276
self.add()
393
277
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
278
logger.critical("DBusException: %s", error)
279
self.cleanup()
280
os._exit(1)
281
self.rename_count += 1
403
282
def remove(self):
404
283
"""Derived from the Avahi example code"""
405
284
if self.entry_group_state_changed_match is not None:
407
286
self.entry_group_state_changed_match = None
408
287
if self.group is not None:
409
288
self.group.Reset()
410
411
289
def add(self):
412
290
"""Derived from the Avahi example code"""
413
291
self.remove()
430
308
dbus.UInt16(self.port),
431
309
avahi.string_array_to_txt_array(self.TXT))
432
310
self.group.Commit()
433
434
311
def entry_group_state_changed(self, state, error):
435
312
"""Derived from the Avahi example code"""
436
313
logger.debug("Avahi entry group state change: %i", state)
437
314
438
315
if state == avahi.ENTRY_GROUP_ESTABLISHED:
439
316
logger.debug("Zeroconf service established.")
440
317
elif state == avahi.ENTRY_GROUP_COLLISION:
442
319
self.rename()
443
320
elif state == avahi.ENTRY_GROUP_FAILURE:
444
321
logger.critical("Avahi: Error in group state changed %s",
445
str(error))
446
raise AvahiGroupError("State changed: {!s}".format(error))
447
322
unicode(error))
323
raise AvahiGroupError("State changed: %s"
324
% unicode(error))
448
325
def cleanup(self):
449
326
"""Derived from the Avahi example code"""
450
327
if self.group is not None:
455
332
pass
456
333
self.group = None
457
334
self.remove()
458
459
335
def server_state_changed(self, state, error=None):
460
336
"""Derived from the Avahi example code"""
461
337
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
}
338
bad_states = { avahi.SERVER_INVALID:
339
"Zeroconf server invalid",
340
avahi.SERVER_REGISTERING: None,
341
avahi.SERVER_COLLISION:
342
"Zeroconf server name collision",
343
avahi.SERVER_FAILURE:
344
"Zeroconf server failure" }
468
345
if state in bad_states:
469
346
if bad_states[state] is not None:
470
347
if error is None:
473
350
logger.error(bad_states[state] + ": %r", error)
474
351
self.cleanup()
475
352
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)
353
self.add()
488
354
else:
489
355
if error is None:
490
356
logger.debug("Unknown state: %r", state)
491
357
else:
492
358
logger.debug("Unknown state: %r: %r", state, error)
493
494
359
def activate(self):
495
360
"""Derived from the Avahi example code"""
496
361
if self.server is None:
500
365
follow_name_owner_changes=True),
501
366
avahi.DBUS_INTERFACE_SERVER)
502
367
self.server.connect_to_signal("StateChanged",
503
self.server_state_changed)
368
self.server_state_changed)
504
369
self.server_state_changed(self.server.GetState())
505
370
506
507
371
class AvahiServiceToSyslog(AvahiService):
508
def rename(self, *args, **kwargs):
372
def rename(self):
509
373
"""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)))
374
ret = AvahiService.rename(self)
375
syslogger.setFormatter(logging.Formatter
376
('Mandos (%s) [%%(process)d]:'
377
' %%(levelname)s: %%(message)s'
378
% self.name))
514
379
return ret
515
380
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:
381
def timedelta_to_milliseconds(td):
382
"Convert a datetime.timedelta() to milliseconds"
383
return ((td.days * 24 * 60 * 60 * 1000)
384
+ (td.seconds * 1000)
385
+ (td.microseconds // 1000))
386
387
class Client(object):
830
388
"""A representation of a client host served by this server.
831
389
832
390
Attributes:
833
391
approved: bool(); 'None' if not yet approved/disapproved
834
392
approval_delay: datetime.timedelta(); Time to wait for approval
835
393
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
394
checker: subprocess.Popen(); a running checker process used
395
to see if the client lives.
396
'None' if no process is running.
397
checker_callback_tag: a gobject event source tag, or None
840
398
checker_command: string; External command which is run to check
841
399
if client lives. %() expansions are done at
842
400
runtime with vars(self) as dict, so that for
843
401
instance %(name)s can be used in the command.
844
checker_initiator_tag: a GLib event source tag, or None
402
checker_initiator_tag: a gobject event source tag, or None
845
403
created: datetime.datetime(); (UTC) object creation
846
404
client_structure: Object describing what attributes a client has
847
405
and is used for storing the client at exit
848
406
current_checker_command: string; current running checker_command
849
disable_initiator_tag: a GLib event source tag, or None
407
disable_initiator_tag: a gobject event source tag, or None
850
408
enabled: bool()
851
409
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
410
uniquely identify the client
855
411
host: string; available for use by the checker command
856
412
interval: datetime.timedelta(); How often to start a new checker
857
413
last_approval_request: datetime.datetime(); (UTC) or None
858
414
last_checked_ok: datetime.datetime(); (UTC) or None
859
415
last_checker_status: integer between 0 and 255 reflecting exit
860
416
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
417
checker, or None.
864
418
last_enabled: datetime.datetime(); (UTC) or None
865
419
name: string; from the config file, used in log messages and
866
420
D-Bus identifiers
867
421
secret: bytestring; sent verbatim (over TLS) to client
868
422
timeout: datetime.timedelta(); How long from last_checked_ok
869
423
until this client is disabled
870
extended_timeout: extra long timeout when secret has been sent
424
extended_timeout: extra long timeout when password has been sent
871
425
runtime_expansions: Allowed attributes for runtime expansion.
872
426
expires: datetime.datetime(); time (UTC) when a client will be
873
427
disabled, or None
874
server_settings: The server_settings dict from main()
875
428
"""
876
429
877
430
runtime_expansions = ("approval_delay", "approval_duration",
878
"created", "enabled", "expires", "key_id",
879
"fingerprint", "host", "interval",
880
"last_approval_request", "last_checked_ok",
431
"created", "enabled", "fingerprint",
432
"host", "interval", "last_checked_ok",
881
433
"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
}
434
client_defaults = { "timeout": "5m",
435
"extended_timeout": "15m",
436
"interval": "2m",
437
"checker": "fping -q -- %%(host)s",
438
"host": "",
439
"approval_delay": "0s",
440
"approval_duration": "1s",
441
"approved_by_default": "True",
442
"enabled": "True",
443
}
444
445
def timeout_milliseconds(self):
446
"Return the 'timeout' attribute in milliseconds"
447
return timedelta_to_milliseconds(self.timeout)
448
449
def extended_timeout_milliseconds(self):
450
"Return the 'extended_timeout' attribute in milliseconds"
451
return timedelta_to_milliseconds(self.extended_timeout)
452
453
def interval_milliseconds(self):
454
"Return the 'interval' attribute in milliseconds"
455
return timedelta_to_milliseconds(self.interval)
456
457
def approval_delay_milliseconds(self):
458
return timedelta_to_milliseconds(self.approval_delay)
893
459
894
460
@staticmethod
895
461
def config_parser(config):
896
"""Construct a new dict of client settings of this form:
462
""" Construct a new dict of client settings of this form:
897
463
{ 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
"""
464
with exceptions for any special settings as defined above"""
902
465
settings = {}
903
466
for client_name in config.sections():
904
467
section = dict(config.items(client_name))
905
468
client = settings[client_name] = {}
906
469
907
470
client["host"] = section["host"]
908
471
# Reformat values from string types to Python types
909
472
client["approved_by_default"] = config.getboolean(
910
473
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(" ", ""))
474
client["enabled"] = config.getboolean(client_name, "enabled")
475
919
476
client["fingerprint"] = (section["fingerprint"].upper()
920
477
.replace(" ", ""))
921
478
if "secret" in section:
922
client["secret"] = codecs.decode(section["secret"]
923
.encode("utf-8"),
924
"base64")
479
client["secret"] = section["secret"].decode("base64")
925
480
elif "secfile" in section:
926
481
with open(os.path.expanduser(os.path.expandvars
927
482
(section["secfile"])),
928
483
"rb") as secfile:
929
484
client["secret"] = secfile.read()
930
485
else:
931
raise TypeError("No secret or secfile for section {}"
932
.format(section))
486
raise TypeError("No secret or secfile for section %s"
487
% section)
933
488
client["timeout"] = string_to_delta(section["timeout"])
934
489
client["extended_timeout"] = string_to_delta(
935
490
section["extended_timeout"])
941
496
client["checker_command"] = section["checker"]
942
497
client["last_approval_request"] = None
943
498
client["last_checked_ok"] = None
944
client["last_checker_status"] = -2
499
client["last_checker_status"] = None
500
if client["enabled"]:
501
client["last_enabled"] = datetime.datetime.utcnow()
502
client["expires"] = (datetime.datetime.utcnow()
503
+ client["timeout"])
504
else:
505
client["last_enabled"] = None
506
client["expires"] = None
945
507
946
508
return settings
947
948
def __init__(self, settings, name=None, server_settings=None):
509
510
511
def __init__(self, settings, name = None):
512
"""Note: the 'checker' key in 'config' sets the
513
'checker_command' attribute and *not* the 'checker'
514
attribute."""
949
515
self.name = name
950
if server_settings is None:
951
server_settings = {}
952
self.server_settings = server_settings
953
516
# adding all client settings
954
for setting, value in settings.items():
517
for setting, value in settings.iteritems():
955
518
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
519
967
520
logger.debug("Creating client %r", self.name)
968
logger.debug(" Key ID: %s", self.key_id)
521
# Uppercase and remove spaces from fingerprint for later
522
# comparison purposes with return value from the fingerprint()
523
# function
969
524
logger.debug(" Fingerprint: %s", self.fingerprint)
970
self.created = settings.get("created",
971
datetime.datetime.utcnow())
525
self.created = settings.get("created", datetime.datetime.utcnow())
972
526
973
527
# attributes specific for this server instance
974
528
self.checker = None
978
532
self.current_checker_command = None
979
533
self.approved = None
980
534
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()
535
self.changedstate = (multiprocessing_manager
536
.Condition(multiprocessing_manager
537
.Lock()))
538
self.client_structure = [attr for attr in
539
self.__dict__.iterkeys()
985
540
if not attr.startswith("_")]
986
541
self.client_structure.append("client_structure")
987
988
for name, t in inspect.getmembers(
989
type(self), lambda obj: isinstance(obj, property)):
542
543
for name, t in inspect.getmembers(type(self),
544
lambda obj:
545
isinstance(obj,
546
property)):
990
547
if not name.startswith("_"):
991
548
self.client_structure.append(name)
992
549
993
550
# Send notice to process children that client state has changed
994
551
def send_changedstate(self):
995
552
with self.changedstate:
996
553
self.changedstate.notify_all()
997
554
998
555
def enable(self):
999
556
"""Start this client's checker and timeout hooks"""
1000
557
if getattr(self, "enabled", False):
1001
558
# Already enabled
1002
559
return
560
self.send_changedstate()
1003
561
self.expires = datetime.datetime.utcnow() + self.timeout
1004
562
self.enabled = True
1005
563
self.last_enabled = datetime.datetime.utcnow()
1006
564
self.init_checker()
1007
self.send_changedstate()
1008
565
1009
566
def disable(self, quiet=True):
1010
567
"""Disable this client."""
1011
568
if not getattr(self, "enabled", False):
1012
569
return False
1013
570
if not quiet:
571
self.send_changedstate()
572
if not quiet:
1014
573
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)
574
if getattr(self, "disable_initiator_tag", False):
575
gobject.source_remove(self.disable_initiator_tag)
1017
576
self.disable_initiator_tag = None
1018
577
self.expires = None
1019
if getattr(self, "checker_initiator_tag", None) is not None:
1020
GLib.source_remove(self.checker_initiator_tag)
578
if getattr(self, "checker_initiator_tag", False):
579
gobject.source_remove(self.checker_initiator_tag)
1021
580
self.checker_initiator_tag = None
1022
581
self.stop_checker()
1023
582
self.enabled = False
1024
if not quiet:
1025
self.send_changedstate()
1026
# Do not run this again if called by a GLib.timeout_add
583
# Do not run this again if called by a gobject.timeout_add
1027
584
return False
1028
585
1029
586
def __del__(self):
1030
587
self.disable()
1031
588
1032
589
def init_checker(self):
1033
590
# Schedule a new checker to be started an 'interval' from now,
1034
591
# 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)
592
self.checker_initiator_tag = (gobject.timeout_add
593
(self.interval_milliseconds(),
594
self.start_checker))
1040
595
# 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)
596
self.disable_initiator_tag = (gobject.timeout_add
597
(self.timeout_milliseconds(),
598
self.disable))
1045
599
# Also start a new checker *right now*.
1046
600
self.start_checker()
1047
1048
def checker_callback(self, source, condition, connection,
1049
command):
601
602
def checker_callback(self, pid, condition, command):
1050
603
"""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
604
self.checker_callback_tag = None
1057
605
self.checker = None
1058
1059
if returncode >= 0:
1060
self.last_checker_status = returncode
1061
self.last_checker_signal = None
606
if os.WIFEXITED(condition):
607
self.last_checker_status = os.WEXITSTATUS(condition)
1062
608
if self.last_checker_status == 0:
1063
609
logger.info("Checker for %(name)s succeeded",
1064
610
vars(self))
1065
611
self.checked_ok()
1066
612
else:
1067
logger.info("Checker for %(name)s failed", vars(self))
613
logger.info("Checker for %(name)s failed",
614
vars(self))
1068
615
else:
1069
616
self.last_checker_status = -1
1070
self.last_checker_signal = -returncode
1071
617
logger.warning("Checker for %(name)s crashed?",
1072
618
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."""
619
620
def checked_ok(self, timeout=None):
621
"""Bump up the timeout for this client.
622
623
This should only be called when the client has been seen,
624
alive and well.
625
"""
1084
626
if timeout is None:
1085
627
timeout = self.timeout
628
self.last_checked_ok = datetime.datetime.utcnow()
1086
629
if self.disable_initiator_tag is not None:
1087
GLib.source_remove(self.disable_initiator_tag)
1088
self.disable_initiator_tag = None
630
gobject.source_remove(self.disable_initiator_tag)
1089
631
if getattr(self, "enabled", False):
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(timeout.total_seconds() * 1000), self.disable)
632
self.disable_initiator_tag = (gobject.timeout_add
633
(timedelta_to_milliseconds
634
(timeout), self.disable))
1092
635
self.expires = datetime.datetime.utcnow() + timeout
1093
636
1094
637
def need_approval(self):
1095
638
self.last_approval_request = datetime.datetime.utcnow()
1096
639
1097
640
def start_checker(self):
1098
641
"""Start a new checker subprocess if one is not running.
1099
642
1100
643
If a checker already exists, leave it running and do
1101
644
nothing."""
1102
645
# 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
646
# did that, then if a checker (for some reason) started
647
# running slowly and taking more than 'interval' time, the
648
# client would inevitably timeout, since no checker would get
649
# a chance to run to completion. If we instead leave running
1107
650
# checkers alone, the checker would have to take more time
1108
651
# than 'timeout' for the client to be disabled, which is as it
1109
652
# 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
653
654
# If a checker exists, make sure it is not a zombie
655
try:
656
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
657
except (AttributeError, OSError) as error:
658
if (isinstance(error, OSError)
659
and error.errno != errno.ECHILD):
660
raise error
661
else:
662
if pid:
663
logger.warning("Checker was a zombie")
664
gobject.source_remove(self.checker_callback_tag)
665
self.checker_callback(pid, status,
666
self.current_checker_command)
1115
667
# Start a new checker if needed
1116
668
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
669
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
670
# In case checker_command has exactly one % operator
671
command = self.checker_command % self.host
672
except TypeError:
673
# Escape attributes for the shell
674
escaped_attrs = dict(
675
(attr,
676
re.escape(unicode(str(getattr(self, attr, "")),
677
errors=
678
'replace')))
679
for attr in
680
self.runtime_expansions)
681
682
try:
683
command = self.checker_command % escaped_attrs
684
except TypeError as error:
685
logger.error('Could not format string "%s":'
686
' %s', self.checker_command, error)
687
return True # Try again later
1128
688
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
689
try:
690
logger.info("Starting checker %r for %s",
691
command, self.name)
692
# We don't need to redirect stdout and stderr, since
693
# in normal mode, that is already done by daemon(),
694
# and in debug mode we don't want to. (Stdin is
695
# always replaced by /dev/null.)
696
self.checker = subprocess.Popen(command,
697
close_fds=True,
698
shell=True, cwd="/")
699
self.checker_callback_tag = (gobject.child_watch_add
700
(self.checker.pid,
701
self.checker_callback,
702
data=command))
703
# The checker may have completed before the gobject
704
# watch was added. Check for this.
705
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
706
if pid:
707
gobject.source_remove(self.checker_callback_tag)
708
self.checker_callback(pid, status, command)
709
except OSError as error:
710
logger.error("Failed to start subprocess: %s",
711
error)
712
# Re-run this periodically if run by gobject.timeout_add
1156
713
return True
1157
714
1158
715
def stop_checker(self):
1159
716
"""Force the checker process, if any, to stop."""
1160
717
if self.checker_callback_tag:
1161
GLib.source_remove(self.checker_callback_tag)
718
gobject.source_remove(self.checker_callback_tag)
1162
719
self.checker_callback_tag = None
1163
720
if getattr(self, "checker", None) is None:
1164
721
return
1165
722
logger.debug("Stopping checker for %(name)s", vars(self))
1166
self.checker.terminate()
723
try:
724
os.kill(self.checker.pid, signal.SIGTERM)
725
#time.sleep(0.5)
726
#if self.checker.poll() is None:
727
# os.kill(self.checker.pid, signal.SIGKILL)
728
except OSError as error:
729
if error.errno != errno.ESRCH: # No such process
730
raise
1167
731
self.checker = None
1168
732
1169
733
1170
def dbus_service_property(dbus_interface,
1171
signature="v",
1172
access="readwrite",
1173
byte_arrays=False):
734
def dbus_service_property(dbus_interface, signature="v",
735
access="readwrite", byte_arrays=False):
1174
736
"""Decorators for marking methods of a DBusObjectWithProperties to
1175
737
become properties on the D-Bus.
1176
738
1177
739
The decorated method will be called with no arguments by "Get"
1178
740
and with one argument by "Set".
1179
741
1180
742
The parameters, where they are supported, are the same as
1181
743
dbus.service.method, except there is only "signature", since the
1182
744
type from Get() and the type sent to Set() is the same.
1185
747
# "Set" method, so we fail early here:
1186
748
if byte_arrays and signature != "ay":
1187
749
raise ValueError("Byte arrays not supported for non-'ay'"
1188
" signature {!r}".format(signature))
1189
750
" signature %r" % signature)
1190
751
def decorator(func):
1191
752
func._dbus_is_property = True
1192
753
func._dbus_interface = dbus_interface
1195
756
func._dbus_name = func.__name__
1196
757
if func._dbus_name.endswith("_dbus_property"):
1197
758
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
759
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
760
return func
1244
761
return decorator
1245
762
1246
763
1247
764
class DBusPropertyException(dbus.exceptions.DBusException):
1248
765
"""A base class for D-Bus property-related exceptions
1249
766
"""
1250
pass
767
def __unicode__(self):
768
return unicode(str(self))
1251
769
1252
770
1253
771
class DBusPropertyAccessException(DBusPropertyException):
1262
780
pass
1263
781
1264
782
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):
783
class DBusObjectWithProperties(dbus.service.Object):
1355
784
"""A D-Bus object with properties.
1356
785
1357
786
Classes inheriting from this can use the dbus_service_property
1358
787
decorator to expose methods as D-Bus properties. It exposes the
1359
788
standard Get(), Set(), and GetAll() methods on the D-Bus.
1360
789
"""
1361
790
791
@staticmethod
792
def _is_dbus_property(obj):
793
return getattr(obj, "_dbus_is_property", False)
794
795
def _get_all_dbus_properties(self):
796
"""Returns a generator of (name, attribute) pairs
797
"""
798
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
799
for cls in self.__class__.__mro__
800
for name, prop in
801
inspect.getmembers(cls, self._is_dbus_property))
802
1362
803
def _get_dbus_property(self, interface_name, property_name):
1363
804
"""Returns a bound method if one exists which is a D-Bus
1364
805
property with the specified name and interface.
1365
806
"""
1366
for cls in self.__class__.__mro__:
1367
for name, value in inspect.getmembers(
1368
cls, self._is_dbus_thing("property")):
807
for cls in self.__class__.__mro__:
808
for name, value in (inspect.getmembers
809
(cls, self._is_dbus_property)):
1369
810
if (value._dbus_name == property_name
1370
811
and value._dbus_interface == interface_name):
1371
812
return value.__get__(self)
1372
813
1373
814
# 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",
815
raise DBusPropertyNotFound(self.dbus_object_path + ":"
816
+ interface_name + "."
817
+ property_name)
818
819
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1388
820
out_signature="v")
1389
821
def Get(self, interface_name, property_name):
1390
822
"""Standard D-Bus property Get() method, see D-Bus standard.
1396
828
if not hasattr(value, "variant_level"):
1397
829
return value
1398
830
return type(value)(value, variant_level=value.variant_level+1)
1399
831
1400
832
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1401
833
def Set(self, interface_name, property_name, value):
1402
834
"""Standard D-Bus property Set() method, see D-Bus standard.
1408
840
# The byte_arrays option is not supported yet on
1409
841
# signatures other than "ay".
1410
842
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))
843
raise ValueError
844
value = dbus.ByteArray(''.join(unichr(byte)
845
for byte in value))
1415
846
prop(value)
1416
1417
@dbus.service.method(dbus.PROPERTIES_IFACE,
1418
in_signature="s",
847
848
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1419
849
out_signature="a{sv}")
1420
850
def GetAll(self, interface_name):
1421
851
"""Standard D-Bus property GetAll() method, see D-Bus
1422
852
standard.
1423
853
1424
854
Note: Will not include properties with access="write".
1425
855
"""
1426
856
properties = {}
1427
for name, prop in self._get_all_dbus_things("property"):
857
for name, prop in self._get_all_dbus_properties():
1428
858
if (interface_name
1429
859
and interface_name != prop._dbus_interface):
1430
860
# Interface non-empty but did not match
1436
866
if not hasattr(value, "variant_level"):
1437
867
properties[name] = value
1438
868
continue
1439
properties[name] = type(value)(
1440
value, variant_level=value.variant_level + 1)
869
properties[name] = type(value)(value, variant_level=
870
value.variant_level+1)
1441
871
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
872
1451
873
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1452
874
out_signature="s",
1453
875
path_keyword='object_path',
1454
876
connection_keyword='connection')
1455
877
def Introspect(self, object_path, connection):
1456
"""Overloading of standard D-Bus method.
1457
1458
Inserts property tags and interface annotation tags.
878
"""Standard D-Bus method, overloaded to insert property tags.
1459
879
"""
1460
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1461
object_path,
1462
connection)
880
xmlstring = dbus.service.Object.Introspect(self, object_path,
881
connection)
1463
882
try:
1464
883
document = xml.dom.minidom.parseString(xmlstring)
1465
1466
884
def make_tag(document, name, prop):
1467
885
e = document.createElement("property")
1468
886
e.setAttribute("name", name)
1469
887
e.setAttribute("type", prop._dbus_signature)
1470
888
e.setAttribute("access", prop._dbus_access)
1471
889
return e
1472
1473
890
for if_tag in document.getElementsByTagName("interface"):
1474
# Add property tags
1475
891
for tag in (make_tag(document, name, prop)
1476
892
for name, prop
1477
in self._get_all_dbus_things("property")
893
in self._get_all_dbus_properties()
1478
894
if prop._dbus_interface
1479
895
== if_tag.getAttribute("name")):
1480
896
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
897
# Add the names to the return values for the
1498
898
# "org.freedesktop.DBus.Properties" methods
1499
899
if (if_tag.getAttribute("name")
1514
914
except (AttributeError, xml.dom.DOMException,
1515
915
xml.parsers.expat.ExpatError) as error:
1516
916
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):
917
error)
918
return xmlstring
919
920
921
def datetime_to_dbus (dt, variant_level=0):
1593
922
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1594
923
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).
924
return dbus.String("", variant_level = variant_level)
925
return dbus.String(dt.isoformat(),
926
variant_level=variant_level)
927
928
929
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
930
.__metaclass__):
931
"""Applied to an empty subclass of a D-Bus object, this metaclass
932
will add additional D-Bus attributes matching a certain pattern.
1621
933
"""
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):
934
def __new__(mcs, name, bases, attr):
935
# Go through all the base classes which could have D-Bus
936
# methods, signals, or properties in them
937
for base in (b for b in bases
938
if issubclass(b, dbus.service.Object)):
939
# Go though all attributes of the base class
940
for attrname, attribute in inspect.getmembers(base):
1630
941
# Ignore non-D-Bus attributes, and D-Bus attributes
1631
942
# with the wrong interface name
1632
943
if (not hasattr(attribute, "_dbus_interface")
1633
or not attribute._dbus_interface.startswith(
1634
orig_interface_name)):
944
or not attribute._dbus_interface
945
.startswith("se.recompile.Mandos")):
1635
946
continue
1636
947
# Create an alternate D-Bus interface name based on
1637
948
# the current name
1638
alt_interface = attribute._dbus_interface.replace(
1639
orig_interface_name, alt_interface_name)
1640
interface_names.add(alt_interface)
949
alt_interface = (attribute._dbus_interface
950
.replace("se.recompile.Mandos",
951
"se.bsnet.fukt.Mandos"))
1641
952
# Is this a D-Bus signal?
1642
953
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(
954
# Extract the original non-method function by
955
# black magic
956
nonmethod_func = (dict(
1647
957
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)
958
attribute.__closure__))["func"]
959
.cell_contents)
1655
960
# Create a new, but exactly alike, function
1656
961
# object, and decorate it to be a new D-Bus signal
1657
962
# 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
963
new_function = (dbus.service.signal
964
(alt_interface,
965
attribute._dbus_signature)
966
(types.FunctionType(
967
nonmethod_func.func_code,
968
nonmethod_func.func_globals,
969
nonmethod_func.func_name,
970
nonmethod_func.func_defaults,
971
nonmethod_func.func_closure)))
1669
972
# 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
973
# old and new functions, so both the old and new
974
# signals gets sent when the function is called
1673
975
def fixscope(func1, func2):
1674
976
"""This function is a scope container to pass
1675
977
func1 and func2 to the "call_both" function
1676
978
outside of its arguments"""
1677
1678
@functools.wraps(func2)
1679
979
def call_both(*args, **kwargs):
1680
980
"""This function will emit two D-Bus
1681
981
signals by calling func1 and func2"""
1682
982
func1(*args, **kwargs)
1683
983
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
984
return call_both
1691
985
# Create the "call_both" function and add it to
1692
986
# the class
1693
attr[attrname] = fixscope(attribute, new_function)
987
attr[attrname] = fixscope(attribute,
988
new_function)
1694
989
# Is this a D-Bus method?
1695
990
elif getattr(attribute, "_dbus_is_method", False):
1696
991
# Create a new, but exactly alike, function
1697
992
# object. Decorate it to be a new D-Bus method
1698
993
# with the alternate D-Bus interface name. Add it
1699
994
# 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
995
attr[attrname] = (dbus.service.method
996
(alt_interface,
997
attribute._dbus_in_signature,
998
attribute._dbus_out_signature)
999
(types.FunctionType
1000
(attribute.func_code,
1001
attribute.func_globals,
1002
attribute.func_name,
1003
attribute.func_defaults,
1004
attribute.func_closure)))
1712
1005
# Is this a D-Bus property?
1713
1006
elif getattr(attribute, "_dbus_is_property", False):
1714
1007
# Create a new, but exactly alike, function
1715
1008
# object, and decorate it to be a new D-Bus
1716
1009
# property with the alternate D-Bus interface
1717
1010
# 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"})
1011
attr[attrname] = (dbus_service_property
1012
(alt_interface,
1013
attribute._dbus_signature,
1014
attribute._dbus_access,
1015
attribute
1016
._dbus_get_args_options
1017
["byte_arrays"])
1018
(types.FunctionType
1019
(attribute.func_code,
1020
attribute.func_globals,
1021
attribute.func_name,
1022
attribute.func_defaults,
1023
attribute.func_closure)))
1024
return type.__new__(mcs, name, bases, attr)
1025
1026
1770
1027
class ClientDBus(Client, DBusObjectWithProperties):
1771
1028
"""A Client class using D-Bus
1772
1029
1773
1030
Attributes:
1774
1031
dbus_object_path: dbus.ObjectPath
1775
1032
bus: dbus.SystemBus()
1776
1033
"""
1777
1034
1778
1035
runtime_expansions = (Client.runtime_expansions
1779
+ ("dbus_object_path", ))
1780
1781
_interface = "se.recompile.Mandos.Client"
1782
1036
+ ("dbus_object_path",))
1037
1783
1038
# dbus.service.Object doesn't use super(), so we can't either.
1784
1785
def __init__(self, bus=None, *args, **kwargs):
1039
1040
def __init__(self, bus = None, *args, **kwargs):
1786
1041
self.bus = bus
1787
1042
Client.__init__(self, *args, **kwargs)
1043
self._approvals_pending = 0
1044
1045
self._approvals_pending = 0
1788
1046
# Only now, when this client is initialized, can it show up on
1789
1047
# the D-Bus
1790
client_object_name = str(self.name).translate(
1048
client_object_name = unicode(self.name).translate(
1791
1049
{ord("."): ord("_"),
1792
1050
ord("-"): ord("_")})
1793
self.dbus_object_path = dbus.ObjectPath(
1794
"/clients/" + client_object_name)
1051
self.dbus_object_path = (dbus.ObjectPath
1052
("/clients/" + client_object_name))
1795
1053
DBusObjectWithProperties.__init__(self, self.bus,
1796
1054
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):
1055
1056
def notifychangeproperty(transform_func,
1057
dbus_name, type_func=lambda x: x,
1058
variant_level=1):
1803
1059
""" Modify a variable so that it's a property which announces
1804
1060
its changes to DBus.
1805
1061
1806
1062
transform_fun: Function that takes a value and a variant_level
1807
1063
and transforms it to a D-Bus type.
1808
1064
dbus_name: D-Bus name of the variable
1810
1066
to the D-Bus. Default: no transform
1811
1067
variant_level: D-Bus variant level. Default: 1
1812
1068
"""
1813
attrname = "_{}".format(dbus_name)
1814
1069
attrname = "_{0}".format(dbus_name)
1815
1070
def setter(self, value):
1816
1071
if hasattr(self, "dbus_object_path"):
1817
1072
if (not hasattr(self, attrname) or
1818
1073
type_func(getattr(self, attrname, None))
1819
1074
!= 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())
1075
dbus_value = transform_func(type_func(value),
1076
variant_level
1077
=variant_level)
1078
self.PropertyChanged(dbus.String(dbus_name),
1079
dbus_value)
1835
1080
setattr(self, attrname, value)
1836
1081
1837
1082
return property(lambda self: getattr(self, attrname), setter)
1838
1083
1084
1839
1085
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1840
1086
approvals_pending = notifychangeproperty(dbus.Boolean,
1841
1087
"ApprovalPending",
1842
type_func=bool)
1088
type_func = bool)
1843
1089
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1844
1090
last_enabled = notifychangeproperty(datetime_to_dbus,
1845
1091
"LastEnabled")
1846
checker = notifychangeproperty(
1847
dbus.Boolean, "CheckerRunning",
1848
type_func=lambda checker: checker is not None)
1092
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1093
type_func = lambda checker:
1094
checker is not None)
1849
1095
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1850
1096
"LastCheckedOK")
1851
last_checker_status = notifychangeproperty(dbus.Int16,
1852
"LastCheckerStatus")
1853
1097
last_approval_request = notifychangeproperty(
1854
1098
datetime_to_dbus, "LastApprovalRequest")
1855
1099
approved_by_default = notifychangeproperty(dbus.Boolean,
1856
1100
"ApprovedByDefault")
1857
approval_delay = notifychangeproperty(
1858
dbus.UInt64, "ApprovalDelay",
1859
type_func=lambda td: td.total_seconds() * 1000)
1101
approval_delay = notifychangeproperty(dbus.UInt64,
1102
"ApprovalDelay",
1103
type_func =
1104
timedelta_to_milliseconds)
1860
1105
approval_duration = notifychangeproperty(
1861
1106
dbus.UInt64, "ApprovalDuration",
1862
type_func=lambda td: td.total_seconds() * 1000)
1107
type_func = timedelta_to_milliseconds)
1863
1108
host = notifychangeproperty(dbus.String, "Host")
1864
timeout = notifychangeproperty(
1865
dbus.UInt64, "Timeout",
1866
type_func=lambda td: td.total_seconds() * 1000)
1109
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1110
type_func =
1111
timedelta_to_milliseconds)
1867
1112
extended_timeout = notifychangeproperty(
1868
1113
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)
1114
type_func = timedelta_to_milliseconds)
1115
interval = notifychangeproperty(dbus.UInt64,
1116
"Interval",
1117
type_func =
1118
timedelta_to_milliseconds)
1873
1119
checker_command = notifychangeproperty(dbus.String, "Checker")
1874
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1875
invalidate_only=True)
1876
1120
1877
1121
del notifychangeproperty
1878
1122
1879
1123
def __del__(self, *args, **kwargs):
1880
1124
try:
1881
1125
self.remove_from_connection()
1884
1128
if hasattr(DBusObjectWithProperties, "__del__"):
1885
1129
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1886
1130
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:
1131
1132
def checker_callback(self, pid, condition, command,
1133
*args, **kwargs):
1134
self.checker_callback_tag = None
1135
self.checker = None
1136
if os.WIFEXITED(condition):
1137
exitstatus = os.WEXITSTATUS(condition)
1895
1138
# Emit D-Bus signal
1896
1139
self.CheckerCompleted(dbus.Int16(exitstatus),
1897
# This is specific to GNU libC
1898
dbus.Int64(exitstatus << 8),
1140
dbus.Int64(condition),
1899
1141
dbus.String(command))
1900
1142
else:
1901
1143
# Emit D-Bus signal
1902
1144
self.CheckerCompleted(dbus.Int16(-1),
1903
dbus.Int64(
1904
# This is specific to GNU libC
1905
(exitstatus << 8)
1906
| self.last_checker_signal),
1145
dbus.Int64(condition),
1907
1146
dbus.String(command))
1908
return ret
1909
1147
1148
return Client.checker_callback(self, pid, condition, command,
1149
*args, **kwargs)
1150
1910
1151
def start_checker(self, *args, **kwargs):
1911
old_checker_pid = getattr(self.checker, "pid", None)
1152
old_checker = self.checker
1153
if self.checker is not None:
1154
old_checker_pid = self.checker.pid
1155
else:
1156
old_checker_pid = None
1912
1157
r = Client.start_checker(self, *args, **kwargs)
1913
1158
# Only if new checker process was started
1914
1159
if (self.checker is not None
1916
1161
# Emit D-Bus signal
1917
1162
self.CheckerStarted(self.current_checker_command)
1918
1163
return r
1919
1164
1920
1165
def _reset_approved(self):
1921
1166
self.approved = None
1922
1167
return False
1923
1168
1924
1169
def approve(self, value=True):
1170
self.send_changedstate()
1925
1171
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
1172
gobject.timeout_add(timedelta_to_milliseconds
1173
(self.approval_duration),
1174
self._reset_approved)
1175
1176
1177
## D-Bus methods, signals & properties
1178
_interface = "se.recompile.Mandos.Client"
1179
1180
## Signals
1181
1936
1182
# CheckerCompleted - signal
1937
1183
@dbus.service.signal(_interface, signature="nxs")
1938
1184
def CheckerCompleted(self, exitcode, waitstatus, command):
1939
1185
"D-Bus signal"
1940
1186
pass
1941
1187
1942
1188
# CheckerStarted - signal
1943
1189
@dbus.service.signal(_interface, signature="s")
1944
1190
def CheckerStarted(self, command):
1945
1191
"D-Bus signal"
1946
1192
pass
1947
1193
1948
1194
# PropertyChanged - signal
1949
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1950
1195
@dbus.service.signal(_interface, signature="sv")
1951
1196
def PropertyChanged(self, property, value):
1952
1197
"D-Bus signal"
1953
1198
pass
1954
1199
1955
1200
# GotSecret - signal
1956
1201
@dbus.service.signal(_interface)
1957
1202
def GotSecret(self):
1960
1205
server to mandos-client
1961
1206
"""
1962
1207
pass
1963
1208
1964
1209
# Rejected - signal
1965
1210
@dbus.service.signal(_interface, signature="s")
1966
1211
def Rejected(self, reason):
1967
1212
"D-Bus signal"
1968
1213
pass
1969
1214
1970
1215
# NeedApproval - signal
1971
1216
@dbus.service.signal(_interface, signature="tb")
1972
1217
def NeedApproval(self, timeout, default):
1973
1218
"D-Bus signal"
1974
1219
return self.need_approval()
1975
1976
# Methods
1977
1220
1221
# NeRwequest - signal
1222
@dbus.service.signal(_interface, signature="s")
1223
def NewRequest(self, ip):
1224
"""D-Bus signal
1225
Is sent after a client request a password.
1226
"""
1227
pass
1228
1229
## Methods
1230
1978
1231
# Approve - method
1979
1232
@dbus.service.method(_interface, in_signature="b")
1980
1233
def Approve(self, value):
1981
1234
self.approve(value)
1982
1235
1983
1236
# CheckedOK - method
1984
1237
@dbus.service.method(_interface)
1985
1238
def CheckedOK(self):
1986
1239
self.checked_ok()
1987
1240
1988
1241
# Enable - method
1989
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1990
1242
@dbus.service.method(_interface)
1991
1243
def Enable(self):
1992
1244
"D-Bus method"
1993
1245
self.enable()
1994
1246
1995
1247
# StartChecker - method
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1997
1248
@dbus.service.method(_interface)
1998
1249
def StartChecker(self):
1999
1250
"D-Bus method"
2000
1251
self.start_checker()
2001
1252
2002
1253
# Disable - method
2003
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2004
1254
@dbus.service.method(_interface)
2005
1255
def Disable(self):
2006
1256
"D-Bus method"
2007
1257
self.disable()
2008
1258
2009
1259
# StopChecker - method
2010
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2011
1260
@dbus.service.method(_interface)
2012
1261
def StopChecker(self):
2013
1262
self.stop_checker()
2014
2015
# Properties
2016
1263
1264
## Properties
1265
2017
1266
# ApprovalPending - property
2018
1267
@dbus_service_property(_interface, signature="b", access="read")
2019
1268
def ApprovalPending_dbus_property(self):
2020
1269
return dbus.Boolean(bool(self.approvals_pending))
2021
1270
2022
1271
# ApprovedByDefault - property
2023
@dbus_service_property(_interface,
2024
signature="b",
1272
@dbus_service_property(_interface, signature="b",
2025
1273
access="readwrite")
2026
1274
def ApprovedByDefault_dbus_property(self, value=None):
2027
1275
if value is None: # get
2028
1276
return dbus.Boolean(self.approved_by_default)
2029
1277
self.approved_by_default = bool(value)
2030
1278
2031
1279
# ApprovalDelay - property
2032
@dbus_service_property(_interface,
2033
signature="t",
1280
@dbus_service_property(_interface, signature="t",
2034
1281
access="readwrite")
2035
1282
def ApprovalDelay_dbus_property(self, value=None):
2036
1283
if value is None: # get
2037
return dbus.UInt64(self.approval_delay.total_seconds()
2038
* 1000)
1284
return dbus.UInt64(self.approval_delay_milliseconds())
2039
1285
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2040
1286
2041
1287
# ApprovalDuration - property
2042
@dbus_service_property(_interface,
2043
signature="t",
1288
@dbus_service_property(_interface, signature="t",
2044
1289
access="readwrite")
2045
1290
def ApprovalDuration_dbus_property(self, value=None):
2046
1291
if value is None: # get
2047
return dbus.UInt64(self.approval_duration.total_seconds()
2048
* 1000)
1292
return dbus.UInt64(timedelta_to_milliseconds(
1293
self.approval_duration))
2049
1294
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2050
1295
2051
1296
# Name - property
2052
@dbus_annotations(
2053
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2054
1297
@dbus_service_property(_interface, signature="s", access="read")
2055
1298
def Name_dbus_property(self):
2056
1299
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
1300
2065
1301
# Fingerprint - property
2066
@dbus_annotations(
2067
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2068
1302
@dbus_service_property(_interface, signature="s", access="read")
2069
1303
def Fingerprint_dbus_property(self):
2070
1304
return dbus.String(self.fingerprint)
2071
1305
2072
1306
# Host - property
2073
@dbus_service_property(_interface,
2074
signature="s",
1307
@dbus_service_property(_interface, signature="s",
2075
1308
access="readwrite")
2076
1309
def Host_dbus_property(self, value=None):
2077
1310
if value is None: # get
2078
1311
return dbus.String(self.host)
2079
self.host = str(value)
2080
1312
self.host = unicode(value)
1313
2081
1314
# Created - property
2082
@dbus_annotations(
2083
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2084
1315
@dbus_service_property(_interface, signature="s", access="read")
2085
1316
def Created_dbus_property(self):
2086
1317
return datetime_to_dbus(self.created)
2087
1318
2088
1319
# LastEnabled - property
2089
1320
@dbus_service_property(_interface, signature="s", access="read")
2090
1321
def LastEnabled_dbus_property(self):
2091
1322
return datetime_to_dbus(self.last_enabled)
2092
1323
2093
1324
# Enabled - property
2094
@dbus_service_property(_interface,
2095
signature="b",
1325
@dbus_service_property(_interface, signature="b",
2096
1326
access="readwrite")
2097
1327
def Enabled_dbus_property(self, value=None):
2098
1328
if value is None: # get
2101
1331
self.enable()
2102
1332
else:
2103
1333
self.disable()
2104
1334
2105
1335
# LastCheckedOK - property
2106
@dbus_service_property(_interface,
2107
signature="s",
1336
@dbus_service_property(_interface, signature="s",
2108
1337
access="readwrite")
2109
1338
def LastCheckedOK_dbus_property(self, value=None):
2110
1339
if value is not None:
2111
1340
self.checked_ok()
2112
1341
return
2113
1342
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
1343
2120
1344
# Expires - property
2121
1345
@dbus_service_property(_interface, signature="s", access="read")
2122
1346
def Expires_dbus_property(self):
2123
1347
return datetime_to_dbus(self.expires)
2124
1348
2125
1349
# LastApprovalRequest - property
2126
1350
@dbus_service_property(_interface, signature="s", access="read")
2127
1351
def LastApprovalRequest_dbus_property(self):
2128
1352
return datetime_to_dbus(self.last_approval_request)
2129
1353
2130
1354
# Timeout - property
2131
@dbus_service_property(_interface,
2132
signature="t",
1355
@dbus_service_property(_interface, signature="t",
2133
1356
access="readwrite")
2134
1357
def Timeout_dbus_property(self, value=None):
2135
1358
if value is None: # get
2136
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2137
old_timeout = self.timeout
1359
return dbus.UInt64(self.timeout_milliseconds())
2138
1360
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
1361
if getattr(self, "disable_initiator_tag", None) is None:
1362
return
1363
# Reschedule timeout
1364
gobject.source_remove(self.disable_initiator_tag)
1365
self.disable_initiator_tag = None
1366
self.expires = None
1367
time_to_die = timedelta_to_milliseconds((self
1368
.last_checked_ok
1369
+ self.timeout)
1370
- datetime.datetime
1371
.utcnow())
1372
if time_to_die <= 0:
1373
# The timeout has passed
1374
self.disable()
1375
else:
1376
self.expires = (datetime.datetime.utcnow()
1377
+ datetime.timedelta(milliseconds =
1378
time_to_die))
1379
self.disable_initiator_tag = (gobject.timeout_add
1380
(time_to_die, self.disable))
1381
2155
1382
# ExtendedTimeout - property
2156
@dbus_service_property(_interface,
2157
signature="t",
1383
@dbus_service_property(_interface, signature="t",
2158
1384
access="readwrite")
2159
1385
def ExtendedTimeout_dbus_property(self, value=None):
2160
1386
if value is None: # get
2161
return dbus.UInt64(self.extended_timeout.total_seconds()
2162
* 1000)
1387
return dbus.UInt64(self.extended_timeout_milliseconds())
2163
1388
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2164
1389
2165
1390
# Interval - property
2166
@dbus_service_property(_interface,
2167
signature="t",
1391
@dbus_service_property(_interface, signature="t",
2168
1392
access="readwrite")
2169
1393
def Interval_dbus_property(self, value=None):
2170
1394
if value is None: # get
2171
return dbus.UInt64(self.interval.total_seconds() * 1000)
1395
return dbus.UInt64(self.interval_milliseconds())
2172
1396
self.interval = datetime.timedelta(0, 0, 0, value)
2173
1397
if getattr(self, "checker_initiator_tag", None) is None:
2174
1398
return
2175
1399
if self.enabled:
2176
1400
# 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
1401
gobject.source_remove(self.checker_initiator_tag)
1402
self.checker_initiator_tag = (gobject.timeout_add
1403
(value, self.start_checker))
1404
self.start_checker() # Start one now, too
1405
2182
1406
# Checker - property
2183
@dbus_service_property(_interface,
2184
signature="s",
1407
@dbus_service_property(_interface, signature="s",
2185
1408
access="readwrite")
2186
1409
def Checker_dbus_property(self, value=None):
2187
1410
if value is None: # get
2188
1411
return dbus.String(self.checker_command)
2189
self.checker_command = str(value)
2190
1412
self.checker_command = unicode(value)
1413
2191
1414
# CheckerRunning - property
2192
@dbus_service_property(_interface,
2193
signature="b",
1415
@dbus_service_property(_interface, signature="b",
2194
1416
access="readwrite")
2195
1417
def CheckerRunning_dbus_property(self, value=None):
2196
1418
if value is None: # get
2199
1421
self.start_checker()
2200
1422
else:
2201
1423
self.stop_checker()
2202
1424
2203
1425
# ObjectPath - property
2204
@dbus_annotations(
2205
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2206
"org.freedesktop.DBus.Deprecated": "true"})
2207
1426
@dbus_service_property(_interface, signature="o", access="read")
2208
1427
def ObjectPath_dbus_property(self):
2209
return self.dbus_object_path # is already a dbus.ObjectPath
2210
1428
return self.dbus_object_path # is already a dbus.ObjectPath
1429
2211
1430
# 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)
1431
@dbus_service_property(_interface, signature="ay",
1432
access="write", byte_arrays=True)
2219
1433
def Secret_dbus_property(self, value):
2220
self.secret = bytes(value)
2221
1434
self.secret = str(value)
1435
2222
1436
del _interface
2223
1437
2224
1438
2225
class ProxyClient:
2226
def __init__(self, child_pipe, key_id, fpr, address):
1439
class ProxyClient(object):
1440
def __init__(self, child_pipe, fpr, address):
2227
1441
self._pipe = child_pipe
2228
self._pipe.send(('init', key_id, fpr, address))
1442
self._pipe.send(('init', fpr, address))
2229
1443
if not self._pipe.recv():
2230
raise KeyError(key_id or fpr)
2231
1444
raise KeyError()
1445
2232
1446
def __getattribute__(self, name):
2233
1447
if name == '_pipe':
2234
1448
return super(ProxyClient, self).__getattribute__(name)
2237
1451
if data[0] == 'data':
2238
1452
return data[1]
2239
1453
if data[0] == 'function':
2240
2241
1454
def func(*args, **kwargs):
2242
1455
self._pipe.send(('funcall', name, args, kwargs))
2243
1456
return self._pipe.recv()[1]
2244
2245
1457
return func
2246
1458
2247
1459
def __setattr__(self, name, value):
2248
1460
if name == '_pipe':
2249
1461
return super(ProxyClient, self).__setattr__(name, value)
2250
1462
self._pipe.send(('setattr', name, value))
2251
1463
2252
1464
1465
class ClientDBusTransitional(ClientDBus):
1466
__metaclass__ = AlternateDBusNamesMetaclass
1467
1468
2253
1469
class ClientHandler(socketserver.BaseRequestHandler, object):
2254
1470
"""A class to handle client connections.
2255
1471
2256
1472
Instantiated once for each connection to handle it.
2257
1473
Note: This will run in its own forked process."""
2258
1474
2259
1475
def handle(self):
2260
1476
with contextlib.closing(self.server.child_pipe) as child_pipe:
2261
1477
logger.info("TCP connection from: %s",
2262
str(self.client_address))
1478
unicode(self.client_address))
2263
1479
logger.debug("Pipe FD: %d",
2264
1480
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"))
1481
1482
session = (gnutls.connection
1483
.ClientSession(self.request,
1484
gnutls.connection
1485
.X509Credentials()))
1486
1487
# Note: gnutls.connection.X509Credentials is really a
1488
# generic GnuTLS certificate credentials object so long as
1489
# no X.509 keys are added to it. Therefore, we can use it
1490
# here despite using OpenPGP certificates.
1491
1492
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1493
# "+AES-256-CBC", "+SHA1",
1494
# "+COMP-NULL", "+CTYPE-OPENPGP",
1495
# "+DHE-DSS"))
2272
1496
# Use a fallback default, since this MUST be set.
2273
1497
priority = self.server.gnutls_priority
2274
1498
if priority is None:
2275
1499
priority = "NORMAL"
2276
gnutls.priority_set_direct(session._c_object,
2277
priority.encode("utf-8"),
2278
None)
2279
1500
(gnutls.library.functions
1501
.gnutls_priority_set_direct(session._c_object,
1502
priority, None))
1503
2280
1504
# Start communication using the Mandos protocol
2281
1505
# Get protocol number
2282
1506
line = self.request.makefile().readline()
2283
1507
logger.debug("Protocol version: %r", line)
2284
1508
try:
2285
1509
if int(line.strip().split()[0]) > 1:
2286
raise RuntimeError(line)
1510
raise RuntimeError
2287
1511
except (ValueError, IndexError, RuntimeError) as error:
2288
1512
logger.error("Unknown protocol version: %s", error)
2289
1513
return
2290
1514
2291
1515
# Start GnuTLS connection
2292
1516
try:
2293
1517
session.handshake()
2294
except gnutls.Error as error:
1518
except gnutls.errors.GNUTLSError as error:
2295
1519
logger.warning("Handshake failed: %s", error)
2296
1520
# Do not run session.bye() here: the session is not
2297
1521
# established. Just abandon the request.
2298
1522
return
2299
1523
logger.debug("Handshake succeeded")
2300
1524
2301
1525
approval_required = False
2302
1526
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,
1527
try:
1528
fpr = self.fingerprint(self.peer_certificate
1529
(session))
1530
except (TypeError,
1531
gnutls.errors.GNUTLSError) as error:
1532
logger.warning("Bad certificate: %s", error)
1533
return
1534
logger.debug("Fingerprint: %s", fpr)
1535
1536
try:
1537
client = ProxyClient(child_pipe, fpr,
2325
1538
self.client_address)
2326
1539
except KeyError:
2327
1540
return
2328
1541
1542
if self.server.use_dbus:
1543
# Emit D-Bus signal
1544
client.NewRequest(str(self.client_address))
1545
2329
1546
if client.approval_delay:
2330
1547
delay = client.approval_delay
2331
1548
client.approvals_pending += 1
2332
1549
approval_required = True
2333
1550
2334
1551
while True:
2335
1552
if not client.enabled:
2336
1553
logger.info("Client %s is disabled",
2337
client.name)
1554
client.name)
2338
1555
if self.server.use_dbus:
2339
1556
# Emit D-Bus signal
2340
1557
client.Rejected("Disabled")
2341
1558
return
2342
1559
2343
1560
if client.approved or not client.approval_delay:
2344
# We are approved or approval is disabled
1561
#We are approved or approval is disabled
2345
1562
break
2346
1563
elif client.approved is None:
2347
1564
logger.info("Client %s needs approval",
2349
1566
if self.server.use_dbus:
2350
1567
# Emit D-Bus signal
2351
1568
client.NeedApproval(
2352
client.approval_delay.total_seconds()
2353
* 1000, client.approved_by_default)
1569
client.approval_delay_milliseconds(),
1570
client.approved_by_default)
2354
1571
else:
2355
1572
logger.warning("Client %s was not approved",
2356
1573
client.name)
2358
1575
# Emit D-Bus signal
2359
1576
client.Rejected("Denied")
2360
1577
return
2361
2362
# wait until timeout or approved
1578
1579
#wait until timeout or approved
2363
1580
time = datetime.datetime.now()
2364
1581
client.changedstate.acquire()
2365
client.changedstate.wait(delay.total_seconds())
1582
(client.changedstate.wait
1583
(float(client.timedelta_to_milliseconds(delay)
1584
/ 1000)))
2366
1585
client.changedstate.release()
2367
1586
time2 = datetime.datetime.now()
2368
1587
if (time2 - time) >= delay:
2378
1597
break
2379
1598
else:
2380
1599
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
1600
1601
sent_size = 0
1602
while sent_size < len(client.secret):
1603
try:
1604
sent = session.send(client.secret[sent_size:])
1605
except gnutls.errors.GNUTLSError as error:
1606
logger.warning("gnutls send failed")
1607
return
1608
logger.debug("Sent: %d, remaining: %d",
1609
sent, len(client.secret)
1610
- (sent_size + sent))
1611
sent_size += sent
1612
2389
1613
logger.info("Sending secret to %s", client.name)
2390
1614
# bump the timeout using extended_timeout
2391
client.bump_timeout(client.extended_timeout)
1615
client.checked_ok(client.extended_timeout)
2392
1616
if self.server.use_dbus:
2393
1617
# Emit D-Bus signal
2394
1618
client.GotSecret()
2395
1619
2396
1620
finally:
2397
1621
if approval_required:
2398
1622
client.approvals_pending -= 1
2399
1623
try:
2400
1624
session.bye()
2401
except gnutls.Error as error:
2402
logger.warning("GnuTLS bye failed",
2403
exc_info=error)
2404
1625
except gnutls.errors.GNUTLSError as error:
1626
logger.warning("GnuTLS bye failed")
1627
2405
1628
@staticmethod
2406
1629
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""
1630
"Return the peer's OpenPGP certificate as a bytestring"
1631
# If not an OpenPGP certificate...
1632
if (gnutls.library.functions
1633
.gnutls_certificate_type_get(session._c_object)
1634
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1635
# ...do the normal thing
1636
return session.peer_certificate
2423
1637
list_size = ctypes.c_uint(1)
2424
cert_list = (gnutls.certificate_get_peers
1638
cert_list = (gnutls.library.functions
1639
.gnutls_certificate_get_peers
2425
1640
(session._c_object, ctypes.byref(list_size)))
2426
1641
if not bool(cert_list) and list_size.value != 0:
2427
raise gnutls.Error("error getting peer certificate")
1642
raise gnutls.errors.GNUTLSError("error getting peer"
1643
" certificate")
2428
1644
if list_size.value == 0:
2429
1645
return None
2430
1646
cert = cert_list[0]
2431
1647
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
1648
2467
1649
@staticmethod
2468
1650
def fingerprint(openpgp):
2469
1651
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2470
1652
# 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)))
1653
datum = (gnutls.library.types
1654
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1655
ctypes.POINTER
1656
(ctypes.c_ubyte)),
1657
ctypes.c_uint(len(openpgp))))
2475
1658
# New empty GnuTLS certificate
2476
crt = gnutls.openpgp_crt_t()
2477
gnutls.openpgp_crt_init(ctypes.byref(crt))
1659
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1660
(gnutls.library.functions
1661
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2478
1662
# Import the OpenPGP public key into the certificate
2479
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2480
gnutls.OPENPGP_FMT_RAW)
1663
(gnutls.library.functions
1664
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1665
gnutls.library.constants
1666
.GNUTLS_OPENPGP_FMT_RAW))
2481
1667
# Verify the self signature in the key
2482
1668
crtverify = ctypes.c_uint()
2483
gnutls.openpgp_crt_verify_self(crt, 0,
2484
ctypes.byref(crtverify))
1669
(gnutls.library.functions
1670
.gnutls_openpgp_crt_verify_self(crt, 0,
1671
ctypes.byref(crtverify)))
2485
1672
if crtverify.value != 0:
2486
gnutls.openpgp_crt_deinit(crt)
2487
raise gnutls.CertificateSecurityError(code
2488
=crtverify.value)
1673
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1674
raise (gnutls.errors.CertificateSecurityError
1675
("Verify failed"))
2489
1676
# New buffer for the fingerprint
2490
1677
buf = ctypes.create_string_buffer(20)
2491
1678
buf_len = ctypes.c_size_t()
2492
1679
# Get the fingerprint from the certificate into the buffer
2493
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2494
ctypes.byref(buf_len))
1680
(gnutls.library.functions
1681
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1682
ctypes.byref(buf_len)))
2495
1683
# Deinit the certificate
2496
gnutls.openpgp_crt_deinit(crt)
1684
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2497
1685
# Convert the buffer to a Python bytestring
2498
1686
fpr = ctypes.string_at(buf, buf_len.value)
2499
1687
# Convert the bytestring to hexadecimal notation
2501
1689
return hex_fpr
2502
1690
2503
1691
2504
class MultiprocessingMixIn:
1692
class MultiprocessingMixIn(object):
2505
1693
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2506
2507
1694
def sub_process_main(self, request, address):
2508
1695
try:
2509
1696
self.finish_request(request, address)
2510
1697
except Exception:
2511
1698
self.handle_error(request, address)
2512
1699
self.close_request(request)
2513
1700
2514
1701
def process_request(self, request, address):
2515
1702
"""Start a new process to process the request."""
2516
proc = multiprocessing.Process(target=self.sub_process_main,
2517
args=(request, address))
1703
proc = multiprocessing.Process(target = self.sub_process_main,
1704
args = (request,
1705
address))
2518
1706
proc.start()
2519
1707
return proc
2520
1708
2521
1709
2522
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1710
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2523
1711
""" adds a pipe to the MixIn """
2524
2525
1712
def process_request(self, request, client_address):
2526
1713
"""Overrides and wraps the original process_request().
2527
1714
2528
1715
This function creates a new pipe in self.pipe
2529
1716
"""
2530
1717
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2531
1718
2532
1719
proc = MultiprocessingMixIn.process_request(self, request,
2533
1720
client_address)
2534
1721
self.child_pipe.close()
2535
1722
self.add_pipe(parent_pipe, proc)
2536
1723
2537
1724
def add_pipe(self, parent_pipe, proc):
2538
1725
"""Dummy function; override as necessary"""
2539
raise NotImplementedError()
1726
raise NotImplementedError
2540
1727
2541
1728
2542
1729
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2543
socketserver.TCPServer):
1730
socketserver.TCPServer, object):
2544
1731
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2545
1732
2546
1733
Attributes:
2547
1734
enabled: Boolean; whether this server is activated yet
2548
1735
interface: None or a network interface name (string)
2549
1736
use_ipv6: Boolean; to use IPv6 or not
2550
1737
"""
2551
2552
1738
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
"""
1739
interface=None, use_ipv6=True):
2559
1740
self.interface = interface
2560
1741
if use_ipv6:
2561
1742
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
1743
socketserver.TCPServer.__init__(self, server_address,
2590
1744
RequestHandlerClass)
2591
2592
1745
def server_bind(self):
2593
1746
"""This overrides the normal server_bind() function
2594
1747
to bind to an interface if one was specified, and also NOT to
2595
1748
bind to an address or port if they were not specified."""
2596
global SO_BINDTODEVICE
2597
1749
if self.interface is not None:
2598
1750
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
1751
logger.error("SO_BINDTODEVICE does not exist;"
1752
" cannot bind to interface %s",
1753
self.interface)
1754
else:
1755
try:
1756
self.socket.setsockopt(socket.SOL_SOCKET,
1757
SO_BINDTODEVICE,
1758
str(self.interface
1759
+ '\0'))
1760
except socket.error as error:
1761
if error[0] == errno.EPERM:
1762
logger.error("No permission to"
1763
" bind to interface %s",
1764
self.interface)
1765
elif error[0] == errno.ENOPROTOOPT:
1766
logger.error("SO_BINDTODEVICE not available;"
1767
" cannot bind to interface %s",
1768
self.interface)
1769
else:
1770
raise
2620
1771
# Only bind(2) the socket if we really need to.
2621
1772
if self.server_address[0] or self.server_address[1]:
2622
if self.server_address[1]:
2623
self.allow_reuse_address = True
2624
1773
if not self.server_address[0]:
2625
1774
if self.address_family == socket.AF_INET6:
2626
any_address = "::" # in6addr_any
1775
any_address = "::" # in6addr_any
2627
1776
else:
2628
any_address = "0.0.0.0" # INADDR_ANY
1777
any_address = socket.INADDR_ANY
2629
1778
self.server_address = (any_address,
2630
1779
self.server_address[1])
2631
1780
elif not self.server_address[1]:
2632
self.server_address = (self.server_address[0], 0)
1781
self.server_address = (self.server_address[0],
1782
0)
2633
1783
# if self.interface:
2634
1784
# self.server_address = (self.server_address[0],
2635
1785
# 0, # port
2641
1791
2642
1792
class MandosServer(IPv6_TCPServer):
2643
1793
"""Mandos server.
2644
1794
2645
1795
Attributes:
2646
1796
clients: set of Client objects
2647
1797
gnutls_priority GnuTLS priority string
2648
1798
use_dbus: Boolean; to emit D-Bus signals or not
2649
2650
Assumes a GLib.MainLoop event loop.
1799
1800
Assumes a gobject.MainLoop event loop.
2651
1801
"""
2652
2653
1802
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):
1803
interface=None, use_ipv6=True, clients=None,
1804
gnutls_priority=None, use_dbus=True):
2660
1805
self.enabled = False
2661
1806
self.clients = clients
2662
1807
if self.clients is None:
2665
1810
self.gnutls_priority = gnutls_priority
2666
1811
IPv6_TCPServer.__init__(self, server_address,
2667
1812
RequestHandlerClass,
2668
interface=interface,
2669
use_ipv6=use_ipv6,
2670
socketfd=socketfd)
2671
1813
interface = interface,
1814
use_ipv6 = use_ipv6)
2672
1815
def server_activate(self):
2673
1816
if self.enabled:
2674
1817
return socketserver.TCPServer.server_activate(self)
2675
1818
2676
1819
def enable(self):
2677
1820
self.enabled = True
2678
1821
2679
1822
def add_pipe(self, parent_pipe, proc):
2680
1823
# 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):
1824
gobject.io_add_watch(parent_pipe.fileno(),
1825
gobject.IO_IN | gobject.IO_HUP,
1826
functools.partial(self.handle_ipc,
1827
parent_pipe =
1828
parent_pipe,
1829
proc = proc))
1830
1831
def handle_ipc(self, source, condition, parent_pipe=None,
1832
proc = None, client_object=None):
1833
condition_names = {
1834
gobject.IO_IN: "IN", # There is data to read.
1835
gobject.IO_OUT: "OUT", # Data can be written (without
1836
# blocking).
1837
gobject.IO_PRI: "PRI", # There is urgent data to read.
1838
gobject.IO_ERR: "ERR", # Error condition.
1839
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1840
# broken, usually for pipes and
1841
# sockets).
1842
}
1843
conditions_string = ' | '.join(name
1844
for cond, name in
1845
condition_names.iteritems()
1846
if cond & condition)
2692
1847
# error, or the other end of multiprocessing.Pipe has closed
2693
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1848
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2694
1849
# Wait for other process to exit
2695
1850
proc.join()
2696
1851
return False
2697
1852
2698
1853
# Read a request from the child
2699
1854
request = parent_pipe.recv()
2700
1855
command = request[0]
2701
1856
2702
1857
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:
1858
fpr = request[1]
1859
address = request[2]
1860
1861
for c in self.clients.itervalues():
1862
if c.fingerprint == fpr:
2714
1863
client = c
2715
1864
break
2716
1865
else:
2717
logger.info("Client not found for key ID: %s, address"
2718
": %s", key_id or fpr, address)
1866
logger.info("Client not found for fingerprint: %s, ad"
1867
"dress: %s", fpr, address)
2719
1868
if self.use_dbus:
2720
1869
# Emit D-Bus signal
2721
mandos_dbus_service.ClientNotFound(key_id or fpr,
1870
mandos_dbus_service.ClientNotFound(fpr,
2722
1871
address[0])
2723
1872
parent_pipe.send(False)
2724
1873
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))
1874
1875
gobject.io_add_watch(parent_pipe.fileno(),
1876
gobject.IO_IN | gobject.IO_HUP,
1877
functools.partial(self.handle_ipc,
1878
parent_pipe =
1879
parent_pipe,
1880
proc = proc,
1881
client_object =
1882
client))
2733
1883
parent_pipe.send(True)
2734
1884
# remove the old hook in favor of the new above hook on
2735
1885
# same fileno
2738
1888
funcname = request[1]
2739
1889
args = request[2]
2740
1890
kwargs = request[3]
2741
1891
2742
1892
parent_pipe.send(('data', getattr(client_object,
2743
1893
funcname)(*args,
2744
**kwargs)))
2745
1894
**kwargs)))
1895
2746
1896
if command == 'getattr':
2747
1897
attrname = request[1]
2748
if isinstance(client_object.__getattribute__(attrname),
2749
collections.Callable):
2750
parent_pipe.send(('function', ))
1898
if callable(client_object.__getattribute__(attrname)):
1899
parent_pipe.send(('function',))
2751
1900
else:
2752
parent_pipe.send((
2753
'data', client_object.__getattribute__(attrname)))
2754
1901
parent_pipe.send(('data', client_object
1902
.__getattribute__(attrname)))
1903
2755
1904
if command == 'setattr':
2756
1905
attrname = request[1]
2757
1906
value = request[2]
2758
1907
setattr(client_object, attrname, value)
2759
1908
2760
1909
return True
2761
1910
2762
1911
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
1912
def string_to_delta(interval):
2863
1913
"""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
1914
1915
>>> string_to_delta('7d')
1916
datetime.timedelta(7)
1917
>>> string_to_delta('60s')
1918
datetime.timedelta(0, 60)
1919
>>> string_to_delta('60m')
1920
datetime.timedelta(0, 3600)
1921
>>> string_to_delta('24h')
1922
datetime.timedelta(1)
1923
>>> string_to_delta('1w')
1924
datetime.timedelta(7)
1925
>>> string_to_delta('5m 30s')
1926
datetime.timedelta(0, 330)
2877
1927
"""
2878
2879
try:
2880
return rfc3339_duration_to_delta(interval)
2881
except ValueError:
2882
pass
2883
2884
1928
timevalue = datetime.timedelta(0)
2885
1929
for s in interval.split():
2886
1930
try:
2887
suffix = s[-1]
1931
suffix = unicode(s[-1])
2888
1932
value = int(s[:-1])
2889
1933
if suffix == "d":
2890
1934
delta = datetime.timedelta(value)
2897
1941
elif suffix == "w":
2898
1942
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2899
1943
else:
2900
raise ValueError("Unknown suffix {!r}".format(suffix))
2901
except IndexError as e:
1944
raise ValueError("Unknown suffix %r" % suffix)
1945
except (ValueError, IndexError) as e:
2902
1946
raise ValueError(*(e.args))
2903
1947
timevalue += delta
2904
1948
return timevalue
2905
1949
2906
1950
2907
def daemon(nochdir=False, noclose=False):
1951
def daemon(nochdir = False, noclose = False):
2908
1952
"""See daemon(3). Standard BSD Unix function.
2909
1953
2910
1954
This should really exist as os.daemon, but it doesn't (yet)."""
2911
1955
if os.fork():
2912
1956
sys.exit()
2917
1961
sys.exit()
2918
1962
if not noclose:
2919
1963
# Close all standard open file descriptors
2920
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1964
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2921
1965
if not stat.S_ISCHR(os.fstat(null).st_mode):
2922
1966
raise OSError(errno.ENODEV,
2923
"{} not a character device"
2924
.format(os.devnull))
1967
"%s not a character device"
1968
% os.path.devnull)
2925
1969
os.dup2(null, sys.stdin.fileno())
2926
1970
os.dup2(null, sys.stdout.fileno())
2927
1971
os.dup2(null, sys.stderr.fileno())
2930
1974
2931
1975
2932
1976
def main():
2933
1977
2934
1978
##################################################################
2935
1979
# Parsing of options, both command line and config file
2936
1980
2937
1981
parser = argparse.ArgumentParser()
2938
1982
parser.add_argument("-v", "--version", action="version",
2939
version="%(prog)s {}".format(version),
1983
version = "%%(prog)s %s" % version,
2940
1984
help="show version number and exit")
2941
1985
parser.add_argument("-i", "--interface", metavar="IF",
2942
1986
help="Bind to interface IF")
2948
1992
help="Run self-test")
2949
1993
parser.add_argument("--debug", action="store_true",
2950
1994
help="Debug mode; run in foreground and log"
2951
" to terminal", default=None)
1995
" to terminal")
2952
1996
parser.add_argument("--debuglevel", metavar="LEVEL",
2953
1997
help="Debug level for stdout output")
2954
1998
parser.add_argument("--priority", help="GnuTLS"
2961
2005
" files")
2962
2006
parser.add_argument("--no-dbus", action="store_false",
2963
2007
dest="use_dbus", help="Do not provide D-Bus"
2964
" system bus interface", default=None)
2008
" system bus interface")
2965
2009
parser.add_argument("--no-ipv6", action="store_false",
2966
dest="use_ipv6", help="Do not use IPv6",
2967
default=None)
2010
dest="use_ipv6", help="Do not use IPv6")
2968
2011
parser.add_argument("--no-restore", action="store_false",
2969
2012
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")
2013
" state")
2974
2014
parser.add_argument("--statedir", metavar="DIR",
2975
2015
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
2016
2982
2017
options = parser.parse_args()
2983
2018
2019
if options.check:
2020
import doctest
2021
doctest.testmod()
2022
sys.exit()
2023
2984
2024
# 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
2025
server_defaults = { "interface": "",
2026
"address": "",
2027
"port": "",
2028
"debug": "False",
2029
"priority":
2030
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2031
"servicename": "Mandos",
2032
"use_dbus": "True",
2033
"use_ipv6": "True",
2034
"debuglevel": "",
2035
"restore": "True",
2036
"statedir": "/var/lib/mandos"
2037
}
2038
3008
2039
# Parse config file for server-global settings
3009
server_config = configparser.ConfigParser(server_defaults)
2040
server_config = configparser.SafeConfigParser(server_defaults)
3010
2041
del server_defaults
3011
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3012
# Convert the ConfigParser object to a dict
2042
server_config.read(os.path.join(options.configdir,
2043
"mandos.conf"))
2044
# Convert the SafeConfigParser object to a dict
3013
2045
server_settings = server_config.defaults()
3014
2046
# Use the appropriate methods on the non-string config options
3015
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3016
"foreground", "zeroconf"):
2047
for option in ("debug", "use_dbus", "use_ipv6"):
3017
2048
server_settings[option] = server_config.getboolean("DEFAULT",
3018
2049
option)
3019
2050
if server_settings["port"]:
3020
2051
server_settings["port"] = server_config.getint("DEFAULT",
3021
2052
"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
2053
del server_config
3032
2054
3033
2055
# Override the settings from the config file with command line
3034
2056
# options, if set.
3035
2057
for option in ("interface", "address", "port", "debug",
3036
"priority", "servicename", "configdir", "use_dbus",
3037
"use_ipv6", "debuglevel", "restore", "statedir",
3038
"socket", "foreground", "zeroconf"):
2058
"priority", "servicename", "configdir",
2059
"use_dbus", "use_ipv6", "debuglevel", "restore",
2060
"statedir"):
3039
2061
value = getattr(options, option)
3040
2062
if value is not None:
3041
2063
server_settings[option] = value
3042
2064
del options
3043
2065
# Force all strings to be unicode
3044
2066
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
2067
if type(server_settings[option]) is str:
2068
server_settings[option] = unicode(server_settings[option])
3055
2069
# Now we have our good server settings in "server_settings"
3056
2070
3057
2071
##################################################################
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
2072
3064
2073
# For convenience
3065
2074
debug = server_settings["debug"]
3066
2075
debuglevel = server_settings["debuglevel"]
3068
2077
use_ipv6 = server_settings["use_ipv6"]
3069
2078
stored_state_path = os.path.join(server_settings["statedir"],
3070
2079
stored_state_file)
3071
foreground = server_settings["foreground"]
3072
zeroconf = server_settings["zeroconf"]
3073
2080
3074
2081
if debug:
3075
2082
initlogger(debug, logging.DEBUG)
3076
2083
else:
3079
2086
else:
3080
2087
level = getattr(logging, debuglevel.upper())
3081
2088
initlogger(debug, level)
3082
2089
3083
2090
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
2091
syslogger.setFormatter(logging.Formatter
2092
('Mandos (%s) [%%(process)d]:'
2093
' %%(levelname)s: %%(message)s'
2094
% server_settings["servicename"]))
2095
3089
2096
# Parse config file with clients
3090
client_config = configparser.ConfigParser(Client.client_defaults)
2097
client_config = configparser.SafeConfigParser(Client.client_defaults)
3091
2098
client_config.read(os.path.join(server_settings["configdir"],
3092
2099
"clients.conf"))
3093
2100
3094
2101
global mandos_dbus_service
3095
2102
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
2103
2104
tcp_server = MandosServer((server_settings["address"],
2105
server_settings["port"]),
2106
ClientHandler,
2107
interface=(server_settings["interface"]
2108
or None),
2109
use_ipv6=use_ipv6,
2110
gnutls_priority=
2111
server_settings["priority"],
2112
use_dbus=use_dbus)
2113
if not debug:
2114
pidfilename = "/var/run/mandos.pid"
2115
try:
2116
pidfile = open(pidfilename, "w")
2117
except IOError:
2118
logger.error("Could not open file %r", pidfilename)
2119
2120
try:
2121
uid = pwd.getpwnam("_mandos").pw_uid
2122
gid = pwd.getpwnam("_mandos").pw_gid
2123
except KeyError:
2124
try:
2125
uid = pwd.getpwnam("mandos").pw_uid
2126
gid = pwd.getpwnam("mandos").pw_gid
3126
2127
except KeyError:
3127
continue
3128
else:
3129
uid = 65534
3130
gid = 65534
2128
try:
2129
uid = pwd.getpwnam("nobody").pw_uid
2130
gid = pwd.getpwnam("nobody").pw_gid
2131
except KeyError:
2132
uid = 65534
2133
gid = 65534
3131
2134
try:
3132
2135
os.setgid(gid)
3133
2136
os.setuid(uid)
3134
if debug:
3135
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3136
gid))
3137
2137
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
2138
if error[0] != errno.EPERM:
2139
raise error
2140
3143
2141
if debug:
3144
2142
# Enable all possible GnuTLS debugging
3145
2143
3146
2144
# "Use a log level over 10 to enable all debugging options."
3147
2145
# - GnuTLS manual
3148
gnutls.global_set_log_level(11)
3149
3150
@gnutls.log_func
2146
gnutls.library.functions.gnutls_global_set_log_level(11)
2147
2148
@gnutls.library.types.gnutls_log_func
3151
2149
def debug_gnutls(level, string):
3152
2150
logger.debug("GnuTLS: %s", string[:-1])
3153
3154
gnutls.global_set_log_function(debug_gnutls)
3155
2151
2152
(gnutls.library.functions
2153
.gnutls_global_set_log_function(debug_gnutls))
2154
3156
2155
# Redirect stdin so all checkers get /dev/null
3157
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2156
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3158
2157
os.dup2(null, sys.stdin.fileno())
3159
2158
if null > 2:
3160
2159
os.close(null)
3161
2160
3162
2161
# Need to fork before connecting to D-Bus
3163
if not foreground:
2162
if not debug:
3164
2163
# Close all input and output, do double fork, etc.
3165
2164
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
2165
2166
gobject.threads_init()
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
2219
except EOFError as e:
3285
2220
logger.warning("Could not load persistent state: "
3286
"EOFError:",
3287
exc_info=e)
3288
2221
"EOFError: {0}".format(e))
2222
3289
2223
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
2224
for client_name, client in clients_data.iteritems():
3295
2225
# Decide which value to use after restoring saved state.
3296
2226
# We have three different values: Old config file,
3297
2227
# new config file, and saved state.
3302
2232
# For each value in new config, check if it
3303
2233
# differs from the old config value (Except for
3304
2234
# the "secret" attribute)
3305
if (name != "secret"
3306
and (value !=
3307
old_client_settings[client_name][name])):
2235
if (name != "secret" and
2236
value != old_client_settings[client_name]
2237
[name]):
3308
2238
client[name] = value
3309
2239
except KeyError:
3310
2240
pass
3311
2241
3312
2242
# 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.
2243
# enabled if its last checker was successful. Clients
2244
# whose checker failed before we stored its state is
2245
# assumed to have failed all checkers during downtime.
3317
2246
if client["enabled"]:
3318
2247
if datetime.datetime.utcnow() >= client["expires"]:
3319
2248
if not client["last_checked_ok"]:
3320
2249
logger.warning(
3321
"disabling client {} - Client never "
3322
"performed a successful checker".format(
3323
client_name))
2250
"disabling client {0} - Client never "
2251
"performed a successfull checker"
2252
.format(client["name"]))
3324
2253
client["enabled"] = False
3325
2254
elif client["last_checker_status"] != 0:
3326
2255
logger.warning(
3327
"disabling client {} - Client last"
3328
" checker failed with error code"
3329
" {}".format(
3330
client_name,
3331
client["last_checker_status"]))
2256
"disabling client {0} - Client "
2257
"last checker failed with error code {1}"
2258
.format(client["name"],
2259
client["last_checker_status"]))
3332
2260
client["enabled"] = False
3333
2261
else:
3334
client["expires"] = (
3335
datetime.datetime.utcnow()
3336
+ client["timeout"])
3337
logger.debug("Last checker succeeded,"
3338
" keeping {} enabled".format(
3339
client_name))
2262
client["expires"] = (datetime.datetime
2263
.utcnow()
2264
+ client["timeout"])
2265
3340
2266
try:
3341
client["secret"] = pgp.decrypt(
3342
client["encrypted_secret"],
3343
client_settings[client_name]["secret"])
2267
client["secret"] = (
2268
pgp.decrypt(client["encrypted_secret"],
2269
client_settings[client_name]
2270
["secret"]))
3344
2271
except PGPError:
3345
2272
# 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"])
2273
logger.debug("Failed to decrypt {0} old secret"
2274
.format(client_name))
2275
client["secret"] = (
2276
client_settings[client_name]["secret"])
3350
2277
2278
3351
2279
# Add/remove clients based on new changes made to config
3352
for client_name in (set(old_client_settings)
3353
- set(client_settings)):
2280
for client_name in set(old_client_settings) - set(client_settings):
3354
2281
del clients_data[client_name]
3355
for client_name in (set(client_settings)
3356
- set(old_client_settings)):
2282
for client_name in set(client_settings) - set(old_client_settings):
3357
2283
clients_data[client_name] = client_settings[client_name]
3358
2284
3359
# Create all client objects
3360
for client_name, client in clients_data.items():
2285
# Create clients all clients
2286
for client_name, client in clients_data.iteritems():
3361
2287
tcp_server.clients[client_name] = client_class(
3362
name=client_name,
3363
settings=client,
3364
server_settings=server_settings)
3365
2288
name = client_name, settings = client)
2289
3366
2290
if not tcp_server.clients:
3367
2291
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
2292
2293
if not debug:
2294
try:
2295
with pidfile:
2296
pid = os.getpid()
2297
pidfile.write(str(pid) + "\n".encode("utf-8"))
2298
del pidfile
2299
except IOError:
2300
logger.error("Could not write to file %r with PID %d",
2301
pidfilename, pid)
2302
except NameError:
2303
# "pidfile" was never created
2304
pass
3379
2305
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
2306
signal.signal(signal.SIGINT, signal.SIG_IGN)
2307
2308
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2309
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2310
3385
2311
if use_dbus:
3386
3387
@alternate_dbus_interfaces(
3388
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3389
class MandosDBusService(DBusObjectWithObjectManager):
2312
class MandosDBusService(dbus.service.Object):
3390
2313
"""A D-Bus proxy object"""
3391
3392
2314
def __init__(self):
3393
2315
dbus.service.Object.__init__(self, bus, "/")
3394
3395
2316
_interface = "se.recompile.Mandos"
3396
2317
3397
2318
@dbus.service.signal(_interface, signature="o")
3398
2319
def ClientAdded(self, objpath):
3399
2320
"D-Bus signal"
3400
2321
pass
3401
2322
3402
2323
@dbus.service.signal(_interface, signature="ss")
3403
def ClientNotFound(self, key_id, address):
2324
def ClientNotFound(self, fingerprint, address):
3404
2325
"D-Bus signal"
3405
2326
pass
3406
3407
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3408
"true"})
2327
3409
2328
@dbus.service.signal(_interface, signature="os")
3410
2329
def ClientRemoved(self, objpath, name):
3411
2330
"D-Bus signal"
3412
2331
pass
3413
3414
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3415
"true"})
2332
3416
2333
@dbus.service.method(_interface, out_signature="ao")
3417
2334
def GetAllClients(self):
3418
2335
"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"})
2336
return dbus.Array(c.dbus_object_path
2337
for c in
2338
tcp_server.clients.itervalues())
2339
3424
2340
@dbus.service.method(_interface,
3425
2341
out_signature="a{oa{sv}}")
3426
2342
def GetAllClientsWithProperties(self):
3427
2343
"D-Bus method"
3428
2344
return dbus.Dictionary(
3429
{c.dbus_object_path: c.GetAll(
3430
"se.recompile.Mandos.Client")
3431
for c in tcp_server.clients.values()},
2345
((c.dbus_object_path, c.GetAll(""))
2346
for c in tcp_server.clients.itervalues()),
3432
2347
signature="oa{sv}")
3433
2348
3434
2349
@dbus.service.method(_interface, in_signature="o")
3435
2350
def RemoveClient(self, object_path):
3436
2351
"D-Bus method"
3437
for c in tcp_server.clients.values():
2352
for c in tcp_server.clients.itervalues():
3438
2353
if c.dbus_object_path == object_path:
3439
2354
del tcp_server.clients[c.name]
3440
2355
c.remove_from_connection()
3441
# Don't signal the disabling
2356
# Don't signal anything except ClientRemoved
3442
2357
c.disable(quiet=True)
3443
# Emit D-Bus signal for removal
3444
self.client_removed_signal(c)
2358
# Emit D-Bus signal
2359
self.ClientRemoved(object_path, c.name)
3445
2360
return
3446
2361
raise KeyError(object_path)
3447
2362
3448
2363
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
2364
2365
class MandosDBusServiceTransitional(MandosDBusService):
2366
__metaclass__ = AlternateDBusNamesMetaclass
2367
mandos_dbus_service = MandosDBusServiceTransitional()
2368
3493
2369
def cleanup():
3494
2370
"Cleanup function; run on exit"
3495
if zeroconf:
3496
service.cleanup()
3497
3498
mp.active_children()
3499
wn.close()
2371
service.cleanup()
2372
2373
multiprocessing.active_children()
3500
2374
if not (tcp_server.clients or client_settings):
3501
2375
return
3502
2376
3503
2377
# Store client before exiting. Secrets are encrypted with key
3504
2378
# based on what config file has. If config file is
3505
2379
# removed/edited, old secret will thus be unrecovable.
3506
2380
clients = {}
3507
2381
with PGPEngine() as pgp:
3508
for client in tcp_server.clients.values():
2382
for client in tcp_server.clients.itervalues():
3509
2383
key = client_settings[client.name]["secret"]
3510
2384
client.encrypted_secret = pgp.encrypt(client.secret,
3511
2385
key)
3512
2386
client_dict = {}
3513
2387
3514
2388
# A list of attributes that can not be pickled
3515
2389
# + secret.
3516
exclude = {"bus", "changedstate", "secret",
3517
"checker", "server_settings"}
3518
for name, typ in inspect.getmembers(dbus.service
3519
.Object):
2390
exclude = set(("bus", "changedstate", "secret",
2391
"checker"))
2392
for name, typ in (inspect.getmembers
2393
(dbus.service.Object)):
3520
2394
exclude.add(name)
3521
2395
3522
2396
client_dict["encrypted_secret"] = (client
3523
2397
.encrypted_secret)
3524
2398
for attr in client.client_structure:
3525
2399
if attr not in exclude:
3526
2400
client_dict[attr] = getattr(client, attr)
3527
2401
3528
2402
clients[client.name] = client_dict
3529
2403
del client_settings[client.name]["secret"]
3530
2404
3531
2405
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
2406
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2407
prefix="clients-",
2408
dir=os.path.dirname
2409
(stored_state_path))
2410
with os.fdopen(tempfd, "wb") as stored_state:
2411
pickle.dump((clients, client_settings), stored_state)
3541
2412
os.rename(tempname, stored_state_path)
3542
2413
except (IOError, OSError) as e:
2414
logger.warning("Could not save persistent state: {0}"
2415
.format(e))
3543
2416
if not debug:
3544
2417
try:
3545
2418
os.remove(tempname)
3546
2419
except NameError:
3547
2420
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)
3554
raise
3555
2421
if e.errno not in set((errno.ENOENT, errno.EACCES,
2422
errno.EEXIST)):
2423
raise e
2424
3556
2425
# Delete all clients, and settings from config
3557
2426
while tcp_server.clients:
3558
2427
name, client = tcp_server.clients.popitem()
3559
2428
if use_dbus:
3560
2429
client.remove_from_connection()
3561
# Don't signal the disabling
2430
# Don't signal anything except ClientRemoved
3562
2431
client.disable(quiet=True)
3563
# Emit D-Bus signal for removal
3564
2432
if use_dbus:
3565
mandos_dbus_service.client_removed_signal(client)
2433
# Emit D-Bus signal
2434
mandos_dbus_service.ClientRemoved(client
2435
.dbus_object_path,
2436
client.name)
3566
2437
client_settings.clear()
3567
2438
3568
2439
atexit.register(cleanup)
3569
3570
for client in tcp_server.clients.values():
2440
2441
for client in tcp_server.clients.itervalues():
3571
2442
if use_dbus:
3572
# Emit D-Bus signal for adding
3573
mandos_dbus_service.client_added_signal(client)
2443
# Emit D-Bus signal
2444
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3574
2445
# Need to initiate checking of clients
3575
2446
if client.enabled:
3576
2447
client.init_checker()
3577
2448
3578
2449
tcp_server.enable()
3579
2450
tcp_server.server_activate()
3580
2451
3581
2452
# Find out what port we got
3582
if zeroconf:
3583
service.port = tcp_server.socket.getsockname()[1]
2453
service.port = tcp_server.socket.getsockname()[1]
3584
2454
if use_ipv6:
3585
2455
logger.info("Now listening on address %r, port %d,"
3586
" flowinfo %d, scope_id %d",
3587
*tcp_server.socket.getsockname())
2456
" flowinfo %d, scope_id %d"
2457
% tcp_server.socket.getsockname())
3588
2458
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
2459
logger.info("Now listening on address %r, port %d"
2460
% tcp_server.socket.getsockname())
2461
2462
#service.interface = tcp_server.socket.getsockname()[3]
2463
3594
2464
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
2465
# From the Avahi example code
2466
try:
2467
service.activate()
2468
except dbus.exceptions.DBusException as error:
2469
logger.critical("DBusException: %s", error)
2470
cleanup()
2471
sys.exit(1)
2472
# End of Avahi example code
2473
2474
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2475
lambda *args, **kwargs:
2476
(tcp_server.handle_request
2477
(*args[2:], **kwargs) or True))
2478
3611
2479
logger.debug("Starting main loop")
3612
2480
main_loop.run()
3613
2481
except AvahiError as error:
3614
logger.critical("Avahi Error", exc_info=error)
2482
logger.critical("AvahiError: %s", error)
3615
2483
cleanup()
3616
2484
sys.exit(1)
3617
2485
except KeyboardInterrupt:
3622
2490
# Must run before the D-Bus bus name gets deregistered
3623
2491
cleanup()
3624
2492
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
2493
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()
2494
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0