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- Committer: Björn Påhlsson
- Date: 2011-12-21 00:33:12 UTC
- mfrom: (505.2.13 mandos-client-network-hooks)
- Revision ID: belorn@recompile.se-20111221003312-jwn6d76u2c2lejoz
working new feature: network-hooks - Enables user-scripts to take up
interfaces during bootup
interfaces during bootup
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
66
import binascii
76
67
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
68
82
69
import dbus
83
70
import dbus.service
84
import gi
85
from gi.repository import GLib
71
import gobject
72
import avahi
86
73
from dbus.mainloop.glib import DBusGMainLoop
87
74
import ctypes
88
75
import ctypes.util
89
76
import xml.dom.minidom
90
77
import inspect
91
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
95
# Show warnings by default
96
if not sys.warnoptions:
97
import warnings
98
warnings.simplefilter("default")
99
100
# Try to find the value of SO_BINDTODEVICE:
78
import GnuPGInterface
79
101
80
try:
102
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
103
# newer, and it is also the most natural place for it:
104
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
105
82
except AttributeError:
106
83
try:
107
# This is where SO_BINDTODEVICE was up to and including Python
108
# 2.6, and also 3.2:
109
84
from IN import SO_BINDTODEVICE
110
85
except ImportError:
111
# In Python 2.7 it seems to have been removed entirely.
112
# Try running the C preprocessor:
113
try:
114
cc = subprocess.Popen(["cc", "--language=c", "-E",
115
"/dev/stdin"],
116
stdin=subprocess.PIPE,
117
stdout=subprocess.PIPE)
118
stdout = cc.communicate(
119
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
120
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
121
except (OSError, ValueError, IndexError):
122
# No value found
123
SO_BINDTODEVICE = None
124
125
if sys.version_info.major == 2:
126
str = unicode
127
128
if sys.version_info < (3, 2):
129
configparser.Configparser = configparser.SafeConfigParser
130
131
version = "1.8.9"
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
132
89
stored_state_file = "clients.pickle"
133
90
134
91
logger = logging.getLogger()
135
logging.captureWarnings(True) # Show warnings via the logging system
136
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
137
95
138
96
try:
139
if_nametoindex = ctypes.cdll.LoadLibrary(
140
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
141
100
except (OSError, AttributeError):
142
143
101
def if_nametoindex(interface):
144
102
"Get an interface index the hard way, i.e. using fcntl()"
145
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
146
104
with contextlib.closing(socket.socket()) as s:
147
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
148
struct.pack(b"16s16x", interface))
149
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]
150
110
return interface_index
151
111
152
112
153
def copy_function(func):
154
"""Make a copy of a function"""
155
if sys.version_info.major == 2:
156
return types.FunctionType(func.func_code,
157
func.func_globals,
158
func.func_name,
159
func.func_defaults,
160
func.func_closure)
161
else:
162
return types.FunctionType(func.__code__,
163
func.__globals__,
164
func.__name__,
165
func.__defaults__,
166
func.__closure__)
167
168
169
def initlogger(debug, level=logging.WARNING):
113
def initlogger(level=logging.WARNING):
170
114
"""init logger and add loglevel"""
171
172
global syslogger
173
syslogger = (logging.handlers.SysLogHandler(
174
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
175
address="/dev/log"))
115
176
116
syslogger.setFormatter(logging.Formatter
177
117
('Mandos [%(process)d]: %(levelname)s:'
178
118
' %(message)s'))
179
119
logger.addHandler(syslogger)
180
181
if debug:
182
console = logging.StreamHandler()
183
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
184
' [%(process)d]:'
185
' %(levelname)s:'
186
' %(message)s'))
187
logger.addHandler(console)
120
121
console = logging.StreamHandler()
122
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
123
' [%(process)d]:'
124
' %(levelname)s:'
125
' %(message)s'))
126
logger.addHandler(console)
188
127
logger.setLevel(level)
189
128
190
129
193
132
pass
194
133
195
134
196
class PGPEngine:
135
class PGPEngine(object):
197
136
"""A simple class for OpenPGP symmetric encryption & decryption"""
198
199
137
def __init__(self):
138
self.gnupg = GnuPGInterface.GnuPG()
200
139
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
201
self.gpg = "gpg"
202
try:
203
output = subprocess.check_output(["gpgconf"])
204
for line in output.splitlines():
205
name, text, path = line.split(b":")
206
if name == b"gpg":
207
self.gpg = path
208
break
209
except OSError as e:
210
if e.errno != errno.ENOENT:
211
raise
212
self.gnupgargs = ['--batch',
213
'--homedir', self.tempdir,
214
'--force-mdc',
215
'--quiet']
216
# Only GPG version 1 has the --no-use-agent option.
217
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
218
self.gnupgargs.append("--no-use-agent")
219
140
self.gnupg = GnuPGInterface.GnuPG()
141
self.gnupg.options.meta_interactive = False
142
self.gnupg.options.homedir = self.tempdir
143
self.gnupg.options.extra_args.extend(['--force-mdc',
144
'--quiet'])
145
220
146
def __enter__(self):
221
147
return self
222
223
def __exit__(self, exc_type, exc_value, traceback):
148
149
def __exit__ (self, exc_type, exc_value, traceback):
224
150
self._cleanup()
225
151
return False
226
152
227
153
def __del__(self):
228
154
self._cleanup()
229
155
230
156
def _cleanup(self):
231
157
if self.tempdir is not None:
232
158
# Delete contents of tempdir
233
159
for root, dirs, files in os.walk(self.tempdir,
234
topdown=False):
160
topdown = False):
235
161
for filename in files:
236
162
os.remove(os.path.join(root, filename))
237
163
for dirname in dirs:
239
165
# Remove tempdir
240
166
os.rmdir(self.tempdir)
241
167
self.tempdir = None
242
168
243
169
def password_encode(self, password):
244
170
# Passphrase can not be empty and can not contain newlines or
245
171
# NUL bytes. So we prefix it and hex encode it.
246
encoded = b"mandos" + binascii.hexlify(password)
247
if len(encoded) > 2048:
248
# GnuPG can't handle long passwords, so encode differently
249
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
250
.replace(b"\n", b"\\n")
251
.replace(b"\0", b"\\x00"))
252
return encoded
253
172
return b"mandos" + binascii.hexlify(password)
173
254
174
def encrypt(self, data, password):
255
passphrase = self.password_encode(password)
256
with tempfile.NamedTemporaryFile(
257
dir=self.tempdir) as passfile:
258
passfile.write(passphrase)
259
passfile.flush()
260
proc = subprocess.Popen([self.gpg, '--symmetric',
261
'--passphrase-file',
262
passfile.name]
263
+ self.gnupgargs,
264
stdin=subprocess.PIPE,
265
stdout=subprocess.PIPE,
266
stderr=subprocess.PIPE)
267
ciphertext, err = proc.communicate(input=data)
268
if proc.returncode != 0:
269
raise PGPError(err)
175
self.gnupg.passphrase = self.password_encode(password)
176
with open(os.devnull) as devnull:
177
try:
178
proc = self.gnupg.run(['--symmetric'],
179
create_fhs=['stdin', 'stdout'],
180
attach_fhs={'stderr': devnull})
181
with contextlib.closing(proc.handles['stdin']) as f:
182
f.write(data)
183
with contextlib.closing(proc.handles['stdout']) as f:
184
ciphertext = f.read()
185
proc.wait()
186
except IOError as e:
187
raise PGPError(e)
188
self.gnupg.passphrase = None
270
189
return ciphertext
271
190
272
191
def decrypt(self, data, password):
273
passphrase = self.password_encode(password)
274
with tempfile.NamedTemporaryFile(
275
dir=self.tempdir) as passfile:
276
passfile.write(passphrase)
277
passfile.flush()
278
proc = subprocess.Popen([self.gpg, '--decrypt',
279
'--passphrase-file',
280
passfile.name]
281
+ self.gnupgargs,
282
stdin=subprocess.PIPE,
283
stdout=subprocess.PIPE,
284
stderr=subprocess.PIPE)
285
decrypted_plaintext, err = proc.communicate(input=data)
286
if proc.returncode != 0:
287
raise PGPError(err)
192
self.gnupg.passphrase = self.password_encode(password)
193
with open(os.devnull) as devnull:
194
try:
195
proc = self.gnupg.run(['--decrypt'],
196
create_fhs=['stdin', 'stdout'],
197
attach_fhs={'stderr': devnull})
198
with contextlib.closing(proc.handles['stdin'] ) as f:
199
f.write(data)
200
with contextlib.closing(proc.handles['stdout']) as f:
201
decrypted_plaintext = f.read()
202
proc.wait()
203
except IOError as e:
204
raise PGPError(e)
205
self.gnupg.passphrase = None
288
206
return decrypted_plaintext
289
207
290
208
291
# Pretend that we have an Avahi module
292
class avahi:
293
"""This isn't so much a class as it is a module-like namespace."""
294
IF_UNSPEC = -1 # avahi-common/address.h
295
PROTO_UNSPEC = -1 # avahi-common/address.h
296
PROTO_INET = 0 # avahi-common/address.h
297
PROTO_INET6 = 1 # avahi-common/address.h
298
DBUS_NAME = "org.freedesktop.Avahi"
299
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
300
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
301
DBUS_PATH_SERVER = "/"
302
303
@staticmethod
304
def string_array_to_txt_array(t):
305
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
306
for s in t), signature="ay")
307
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
308
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
309
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
310
SERVER_INVALID = 0 # avahi-common/defs.h
311
SERVER_REGISTERING = 1 # avahi-common/defs.h
312
SERVER_RUNNING = 2 # avahi-common/defs.h
313
SERVER_COLLISION = 3 # avahi-common/defs.h
314
SERVER_FAILURE = 4 # avahi-common/defs.h
315
316
209
317
210
class AvahiError(Exception):
318
211
def __init__(self, value, *args, **kwargs):
319
212
self.value = value
320
return super(AvahiError, self).__init__(value, *args,
321
**kwargs)
322
213
super(AvahiError, self).__init__(value, *args, **kwargs)
214
def __unicode__(self):
215
return unicode(repr(self.value))
323
216
324
217
class AvahiServiceError(AvahiError):
325
218
pass
326
219
327
328
220
class AvahiGroupError(AvahiError):
329
221
pass
330
222
331
223
332
class AvahiService:
224
class AvahiService(object):
333
225
"""An Avahi (Zeroconf) service.
334
226
335
227
Attributes:
336
228
interface: integer; avahi.IF_UNSPEC or an interface index.
337
229
Used to optionally bind to the specified interface.
338
230
name: string; Example: 'Mandos'
339
231
type: string; Example: '_mandos._tcp'.
340
See <https://www.iana.org/assignments/service-names-port-numbers>
232
See <http://www.dns-sd.org/ServiceTypes.html>
341
233
port: integer; what port to announce
342
234
TXT: list of strings; TXT record for the service
343
235
domain: string; Domain to publish on, default to .local if empty.
349
241
server: D-Bus Server
350
242
bus: dbus.SystemBus()
351
243
"""
352
353
def __init__(self,
354
interface=avahi.IF_UNSPEC,
355
name=None,
356
servicetype=None,
357
port=None,
358
TXT=None,
359
domain="",
360
host="",
361
max_renames=32768,
362
protocol=avahi.PROTO_UNSPEC,
363
bus=None):
244
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
245
servicetype = None, port = None, TXT = None,
246
domain = "", host = "", max_renames = 32768,
247
protocol = avahi.PROTO_UNSPEC, bus = None):
364
248
self.interface = interface
365
249
self.name = name
366
250
self.type = servicetype
375
259
self.server = None
376
260
self.bus = bus
377
261
self.entry_group_state_changed_match = None
378
379
def rename(self, remove=True):
262
def rename(self):
380
263
"""Derived from the Avahi example code"""
381
264
if self.rename_count >= self.max_renames:
382
265
logger.critical("No suitable Zeroconf service name found"
383
266
" after %i retries, exiting.",
384
267
self.rename_count)
385
268
raise AvahiServiceError("Too many renames")
386
self.name = str(
387
self.server.GetAlternativeServiceName(self.name))
388
self.rename_count += 1
269
self.name = unicode(self.server
270
.GetAlternativeServiceName(self.name))
389
271
logger.info("Changing Zeroconf service name to %r ...",
390
272
self.name)
391
if remove:
392
self.remove()
273
self.remove()
393
274
try:
394
275
self.add()
395
276
except dbus.exceptions.DBusException as error:
396
if (error.get_dbus_name()
397
== "org.freedesktop.Avahi.CollisionError"):
398
logger.info("Local Zeroconf service name collision.")
399
return self.rename(remove=False)
400
else:
401
logger.critical("D-Bus Exception", exc_info=error)
402
self.cleanup()
403
os._exit(1)
404
277
logger.critical("DBusException: %s", error)
278
self.cleanup()
279
os._exit(1)
280
self.rename_count += 1
405
281
def remove(self):
406
282
"""Derived from the Avahi example code"""
407
283
if self.entry_group_state_changed_match is not None:
409
285
self.entry_group_state_changed_match = None
410
286
if self.group is not None:
411
287
self.group.Reset()
412
413
288
def add(self):
414
289
"""Derived from the Avahi example code"""
415
290
self.remove()
432
307
dbus.UInt16(self.port),
433
308
avahi.string_array_to_txt_array(self.TXT))
434
309
self.group.Commit()
435
436
310
def entry_group_state_changed(self, state, error):
437
311
"""Derived from the Avahi example code"""
438
312
logger.debug("Avahi entry group state change: %i", state)
439
313
440
314
if state == avahi.ENTRY_GROUP_ESTABLISHED:
441
315
logger.debug("Zeroconf service established.")
442
316
elif state == avahi.ENTRY_GROUP_COLLISION:
444
318
self.rename()
445
319
elif state == avahi.ENTRY_GROUP_FAILURE:
446
320
logger.critical("Avahi: Error in group state changed %s",
447
str(error))
448
raise AvahiGroupError("State changed: {!s}".format(error))
449
321
unicode(error))
322
raise AvahiGroupError("State changed: %s"
323
% unicode(error))
450
324
def cleanup(self):
451
325
"""Derived from the Avahi example code"""
452
326
if self.group is not None:
457
331
pass
458
332
self.group = None
459
333
self.remove()
460
461
334
def server_state_changed(self, state, error=None):
462
335
"""Derived from the Avahi example code"""
463
336
logger.debug("Avahi server state change: %i", state)
464
bad_states = {
465
avahi.SERVER_INVALID: "Zeroconf server invalid",
466
avahi.SERVER_REGISTERING: None,
467
avahi.SERVER_COLLISION: "Zeroconf server name collision",
468
avahi.SERVER_FAILURE: "Zeroconf server failure",
469
}
337
bad_states = { avahi.SERVER_INVALID:
338
"Zeroconf server invalid",
339
avahi.SERVER_REGISTERING: None,
340
avahi.SERVER_COLLISION:
341
"Zeroconf server name collision",
342
avahi.SERVER_FAILURE:
343
"Zeroconf server failure" }
470
344
if state in bad_states:
471
345
if bad_states[state] is not None:
472
346
if error is None:
475
349
logger.error(bad_states[state] + ": %r", error)
476
350
self.cleanup()
477
351
elif state == avahi.SERVER_RUNNING:
478
try:
479
self.add()
480
except dbus.exceptions.DBusException as error:
481
if (error.get_dbus_name()
482
== "org.freedesktop.Avahi.CollisionError"):
483
logger.info("Local Zeroconf service name"
484
" collision.")
485
return self.rename(remove=False)
486
else:
487
logger.critical("D-Bus Exception", exc_info=error)
488
self.cleanup()
489
os._exit(1)
352
self.add()
490
353
else:
491
354
if error is None:
492
355
logger.debug("Unknown state: %r", state)
493
356
else:
494
357
logger.debug("Unknown state: %r: %r", state, error)
495
496
358
def activate(self):
497
359
"""Derived from the Avahi example code"""
498
360
if self.server is None:
502
364
follow_name_owner_changes=True),
503
365
avahi.DBUS_INTERFACE_SERVER)
504
366
self.server.connect_to_signal("StateChanged",
505
self.server_state_changed)
367
self.server_state_changed)
506
368
self.server_state_changed(self.server.GetState())
507
369
508
509
370
class AvahiServiceToSyslog(AvahiService):
510
def rename(self, *args, **kwargs):
371
def rename(self):
511
372
"""Add the new name to the syslog messages"""
512
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
513
syslogger.setFormatter(logging.Formatter(
514
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
515
.format(self.name)))
373
ret = AvahiService.rename(self)
374
syslogger.setFormatter(logging.Formatter
375
('Mandos (%s) [%%(process)d]:'
376
' %%(levelname)s: %%(message)s'
377
% self.name))
516
378
return ret
517
379
518
519
# Pretend that we have a GnuTLS module
520
class gnutls:
521
"""This isn't so much a class as it is a module-like namespace."""
522
523
library = ctypes.util.find_library("gnutls")
524
if library is None:
525
library = ctypes.util.find_library("gnutls-deb0")
526
_library = ctypes.cdll.LoadLibrary(library)
527
del library
528
529
# Unless otherwise indicated, the constants and types below are
530
# all from the gnutls/gnutls.h C header file.
531
532
# Constants
533
E_SUCCESS = 0
534
E_INTERRUPTED = -52
535
E_AGAIN = -28
536
CRT_OPENPGP = 2
537
CRT_RAWPK = 3
538
CLIENT = 2
539
SHUT_RDWR = 0
540
CRD_CERTIFICATE = 1
541
E_NO_CERTIFICATE_FOUND = -49
542
X509_FMT_DER = 0
543
NO_TICKETS = 1<<10
544
ENABLE_RAWPK = 1<<18
545
CTYPE_PEERS = 3
546
KEYID_USE_SHA256 = 1 # gnutls/x509.h
547
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
548
549
# Types
550
class session_int(ctypes.Structure):
551
_fields_ = []
552
session_t = ctypes.POINTER(session_int)
553
554
class certificate_credentials_st(ctypes.Structure):
555
_fields_ = []
556
certificate_credentials_t = ctypes.POINTER(
557
certificate_credentials_st)
558
certificate_type_t = ctypes.c_int
559
560
class datum_t(ctypes.Structure):
561
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
562
('size', ctypes.c_uint)]
563
564
class openpgp_crt_int(ctypes.Structure):
565
_fields_ = []
566
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
567
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
568
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
569
credentials_type_t = ctypes.c_int
570
transport_ptr_t = ctypes.c_void_p
571
close_request_t = ctypes.c_int
572
573
# Exceptions
574
class Error(Exception):
575
def __init__(self, message=None, code=None, args=()):
576
# Default usage is by a message string, but if a return
577
# code is passed, convert it to a string with
578
# gnutls.strerror()
579
self.code = code
580
if message is None and code is not None:
581
message = gnutls.strerror(code)
582
return super(gnutls.Error, self).__init__(
583
message, *args)
584
585
class CertificateSecurityError(Error):
586
pass
587
588
# Classes
589
class Credentials:
590
def __init__(self):
591
self._c_object = gnutls.certificate_credentials_t()
592
gnutls.certificate_allocate_credentials(
593
ctypes.byref(self._c_object))
594
self.type = gnutls.CRD_CERTIFICATE
595
596
def __del__(self):
597
gnutls.certificate_free_credentials(self._c_object)
598
599
class ClientSession:
600
def __init__(self, socket, credentials=None):
601
self._c_object = gnutls.session_t()
602
gnutls_flags = gnutls.CLIENT
603
if gnutls.check_version(b"3.5.6"):
604
gnutls_flags |= gnutls.NO_TICKETS
605
if gnutls.has_rawpk:
606
gnutls_flags |= gnutls.ENABLE_RAWPK
607
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
608
del gnutls_flags
609
gnutls.set_default_priority(self._c_object)
610
gnutls.transport_set_ptr(self._c_object, socket.fileno())
611
gnutls.handshake_set_private_extensions(self._c_object,
612
True)
613
self.socket = socket
614
if credentials is None:
615
credentials = gnutls.Credentials()
616
gnutls.credentials_set(self._c_object, credentials.type,
617
ctypes.cast(credentials._c_object,
618
ctypes.c_void_p))
619
self.credentials = credentials
620
621
def __del__(self):
622
gnutls.deinit(self._c_object)
623
624
def handshake(self):
625
return gnutls.handshake(self._c_object)
626
627
def send(self, data):
628
data = bytes(data)
629
data_len = len(data)
630
while data_len > 0:
631
data_len -= gnutls.record_send(self._c_object,
632
data[-data_len:],
633
data_len)
634
635
def bye(self):
636
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
637
638
# Error handling functions
639
def _error_code(result):
640
"""A function to raise exceptions on errors, suitable
641
for the 'restype' attribute on ctypes functions"""
642
if result >= 0:
643
return result
644
if result == gnutls.E_NO_CERTIFICATE_FOUND:
645
raise gnutls.CertificateSecurityError(code=result)
646
raise gnutls.Error(code=result)
647
648
def _retry_on_error(result, func, arguments):
649
"""A function to retry on some errors, suitable
650
for the 'errcheck' attribute on ctypes functions"""
651
while result < 0:
652
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
653
return _error_code(result)
654
result = func(*arguments)
655
return result
656
657
# Unless otherwise indicated, the function declarations below are
658
# all from the gnutls/gnutls.h C header file.
659
660
# Functions
661
priority_set_direct = _library.gnutls_priority_set_direct
662
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
663
ctypes.POINTER(ctypes.c_char_p)]
664
priority_set_direct.restype = _error_code
665
666
init = _library.gnutls_init
667
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
668
init.restype = _error_code
669
670
set_default_priority = _library.gnutls_set_default_priority
671
set_default_priority.argtypes = [session_t]
672
set_default_priority.restype = _error_code
673
674
record_send = _library.gnutls_record_send
675
record_send.argtypes = [session_t, ctypes.c_void_p,
676
ctypes.c_size_t]
677
record_send.restype = ctypes.c_ssize_t
678
record_send.errcheck = _retry_on_error
679
680
certificate_allocate_credentials = (
681
_library.gnutls_certificate_allocate_credentials)
682
certificate_allocate_credentials.argtypes = [
683
ctypes.POINTER(certificate_credentials_t)]
684
certificate_allocate_credentials.restype = _error_code
685
686
certificate_free_credentials = (
687
_library.gnutls_certificate_free_credentials)
688
certificate_free_credentials.argtypes = [
689
certificate_credentials_t]
690
certificate_free_credentials.restype = None
691
692
handshake_set_private_extensions = (
693
_library.gnutls_handshake_set_private_extensions)
694
handshake_set_private_extensions.argtypes = [session_t,
695
ctypes.c_int]
696
handshake_set_private_extensions.restype = None
697
698
credentials_set = _library.gnutls_credentials_set
699
credentials_set.argtypes = [session_t, credentials_type_t,
700
ctypes.c_void_p]
701
credentials_set.restype = _error_code
702
703
strerror = _library.gnutls_strerror
704
strerror.argtypes = [ctypes.c_int]
705
strerror.restype = ctypes.c_char_p
706
707
certificate_type_get = _library.gnutls_certificate_type_get
708
certificate_type_get.argtypes = [session_t]
709
certificate_type_get.restype = _error_code
710
711
certificate_get_peers = _library.gnutls_certificate_get_peers
712
certificate_get_peers.argtypes = [session_t,
713
ctypes.POINTER(ctypes.c_uint)]
714
certificate_get_peers.restype = ctypes.POINTER(datum_t)
715
716
global_set_log_level = _library.gnutls_global_set_log_level
717
global_set_log_level.argtypes = [ctypes.c_int]
718
global_set_log_level.restype = None
719
720
global_set_log_function = _library.gnutls_global_set_log_function
721
global_set_log_function.argtypes = [log_func]
722
global_set_log_function.restype = None
723
724
deinit = _library.gnutls_deinit
725
deinit.argtypes = [session_t]
726
deinit.restype = None
727
728
handshake = _library.gnutls_handshake
729
handshake.argtypes = [session_t]
730
handshake.restype = _error_code
731
handshake.errcheck = _retry_on_error
732
733
transport_set_ptr = _library.gnutls_transport_set_ptr
734
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
735
transport_set_ptr.restype = None
736
737
bye = _library.gnutls_bye
738
bye.argtypes = [session_t, close_request_t]
739
bye.restype = _error_code
740
bye.errcheck = _retry_on_error
741
742
check_version = _library.gnutls_check_version
743
check_version.argtypes = [ctypes.c_char_p]
744
check_version.restype = ctypes.c_char_p
745
746
_need_version = b"3.3.0"
747
if check_version(_need_version) is None:
748
raise self.Error("Needs GnuTLS {} or later"
749
.format(_need_version))
750
751
_tls_rawpk_version = b"3.6.6"
752
has_rawpk = bool(check_version(_tls_rawpk_version))
753
754
if has_rawpk:
755
# Types
756
class pubkey_st(ctypes.Structure):
757
_fields = []
758
pubkey_t = ctypes.POINTER(pubkey_st)
759
760
x509_crt_fmt_t = ctypes.c_int
761
762
# All the function declarations below are from gnutls/abstract.h
763
pubkey_init = _library.gnutls_pubkey_init
764
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
765
pubkey_init.restype = _error_code
766
767
pubkey_import = _library.gnutls_pubkey_import
768
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
769
x509_crt_fmt_t]
770
pubkey_import.restype = _error_code
771
772
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
773
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
774
ctypes.POINTER(ctypes.c_ubyte),
775
ctypes.POINTER(ctypes.c_size_t)]
776
pubkey_get_key_id.restype = _error_code
777
778
pubkey_deinit = _library.gnutls_pubkey_deinit
779
pubkey_deinit.argtypes = [pubkey_t]
780
pubkey_deinit.restype = None
781
else:
782
# All the function declarations below are from gnutls/openpgp.h
783
784
openpgp_crt_init = _library.gnutls_openpgp_crt_init
785
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
786
openpgp_crt_init.restype = _error_code
787
788
openpgp_crt_import = _library.gnutls_openpgp_crt_import
789
openpgp_crt_import.argtypes = [openpgp_crt_t,
790
ctypes.POINTER(datum_t),
791
openpgp_crt_fmt_t]
792
openpgp_crt_import.restype = _error_code
793
794
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
795
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
796
ctypes.POINTER(ctypes.c_uint)]
797
openpgp_crt_verify_self.restype = _error_code
798
799
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
800
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
801
openpgp_crt_deinit.restype = None
802
803
openpgp_crt_get_fingerprint = (
804
_library.gnutls_openpgp_crt_get_fingerprint)
805
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
806
ctypes.c_void_p,
807
ctypes.POINTER(
808
ctypes.c_size_t)]
809
openpgp_crt_get_fingerprint.restype = _error_code
810
811
if check_version(b"3.6.4"):
812
certificate_type_get2 = _library.gnutls_certificate_type_get2
813
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
814
certificate_type_get2.restype = _error_code
815
816
# Remove non-public functions
817
del _error_code, _retry_on_error
818
819
820
def call_pipe(connection, # : multiprocessing.Connection
821
func, *args, **kwargs):
822
"""This function is meant to be called by multiprocessing.Process
823
824
This function runs func(*args, **kwargs), and writes the resulting
825
return value on the provided multiprocessing.Connection.
826
"""
827
connection.send(func(*args, **kwargs))
828
connection.close()
829
830
831
class Client:
380
def timedelta_to_milliseconds(td):
381
"Convert a datetime.timedelta() to milliseconds"
382
return ((td.days * 24 * 60 * 60 * 1000)
383
+ (td.seconds * 1000)
384
+ (td.microseconds // 1000))
385
386
class Client(object):
832
387
"""A representation of a client host served by this server.
833
388
834
389
Attributes:
835
390
approved: bool(); 'None' if not yet approved/disapproved
836
391
approval_delay: datetime.timedelta(); Time to wait for approval
837
392
approval_duration: datetime.timedelta(); Duration of one approval
838
checker: multiprocessing.Process(); a running checker process used
839
to see if the client lives. 'None' if no process is
840
running.
841
checker_callback_tag: a GLib event source tag, or None
393
checker: subprocess.Popen(); a running checker process used
394
to see if the client lives.
395
'None' if no process is running.
396
checker_callback_tag: a gobject event source tag, or None
842
397
checker_command: string; External command which is run to check
843
398
if client lives. %() expansions are done at
844
399
runtime with vars(self) as dict, so that for
845
400
instance %(name)s can be used in the command.
846
checker_initiator_tag: a GLib event source tag, or None
401
checker_initiator_tag: a gobject event source tag, or None
847
402
created: datetime.datetime(); (UTC) object creation
848
403
client_structure: Object describing what attributes a client has
849
404
and is used for storing the client at exit
850
405
current_checker_command: string; current running checker_command
851
disable_initiator_tag: a GLib event source tag, or None
406
disable_initiator_tag: a gobject event source tag, or None
852
407
enabled: bool()
853
408
fingerprint: string (40 or 32 hexadecimal digits); used to
854
uniquely identify an OpenPGP client
855
key_id: string (64 hexadecimal digits); used to uniquely identify
856
a client using raw public keys
409
uniquely identify the client
857
410
host: string; available for use by the checker command
858
411
interval: datetime.timedelta(); How often to start a new checker
859
412
last_approval_request: datetime.datetime(); (UTC) or None
860
413
last_checked_ok: datetime.datetime(); (UTC) or None
861
414
last_checker_status: integer between 0 and 255 reflecting exit
862
415
status of last checker. -1 reflects crashed
863
checker, -2 means no checker completed yet.
864
last_checker_signal: The signal which killed the last checker, if
865
last_checker_status is -1
416
checker, or None.
866
417
last_enabled: datetime.datetime(); (UTC) or None
867
418
name: string; from the config file, used in log messages and
868
419
D-Bus identifiers
869
420
secret: bytestring; sent verbatim (over TLS) to client
870
421
timeout: datetime.timedelta(); How long from last_checked_ok
871
422
until this client is disabled
872
extended_timeout: extra long timeout when secret has been sent
423
extended_timeout: extra long timeout when password has been sent
873
424
runtime_expansions: Allowed attributes for runtime expansion.
874
425
expires: datetime.datetime(); time (UTC) when a client will be
875
426
disabled, or None
876
server_settings: The server_settings dict from main()
877
427
"""
878
428
879
429
runtime_expansions = ("approval_delay", "approval_duration",
880
"created", "enabled", "expires", "key_id",
881
"fingerprint", "host", "interval",
882
"last_approval_request", "last_checked_ok",
430
"created", "enabled", "fingerprint",
431
"host", "interval", "last_checked_ok",
883
432
"last_enabled", "name", "timeout")
884
client_defaults = {
885
"timeout": "PT5M",
886
"extended_timeout": "PT15M",
887
"interval": "PT2M",
888
"checker": "fping -q -- %%(host)s",
889
"host": "",
890
"approval_delay": "PT0S",
891
"approval_duration": "PT1S",
892
"approved_by_default": "True",
893
"enabled": "True",
894
}
433
client_defaults = { "timeout": "5m",
434
"extended_timeout": "15m",
435
"interval": "2m",
436
"checker": "fping -q -- %%(host)s",
437
"host": "",
438
"approval_delay": "0s",
439
"approval_duration": "1s",
440
"approved_by_default": "True",
441
"enabled": "True",
442
}
443
444
def timeout_milliseconds(self):
445
"Return the 'timeout' attribute in milliseconds"
446
return timedelta_to_milliseconds(self.timeout)
447
448
def extended_timeout_milliseconds(self):
449
"Return the 'extended_timeout' attribute in milliseconds"
450
return timedelta_to_milliseconds(self.extended_timeout)
451
452
def interval_milliseconds(self):
453
"Return the 'interval' attribute in milliseconds"
454
return timedelta_to_milliseconds(self.interval)
455
456
def approval_delay_milliseconds(self):
457
return timedelta_to_milliseconds(self.approval_delay)
895
458
896
459
@staticmethod
897
460
def config_parser(config):
898
"""Construct a new dict of client settings of this form:
461
""" Construct a new dict of client settings of this form:
899
462
{ client_name: {setting_name: value, ...}, ...}
900
with exceptions for any special settings as defined above.
901
NOTE: Must be a pure function. Must return the same result
902
value given the same arguments.
903
"""
463
with exceptions for any special settings as defined above"""
904
464
settings = {}
905
465
for client_name in config.sections():
906
466
section = dict(config.items(client_name))
907
467
client = settings[client_name] = {}
908
468
909
469
client["host"] = section["host"]
910
470
# Reformat values from string types to Python types
911
471
client["approved_by_default"] = config.getboolean(
912
472
client_name, "approved_by_default")
913
client["enabled"] = config.getboolean(client_name,
914
"enabled")
915
916
# Uppercase and remove spaces from key_id and fingerprint
917
# for later comparison purposes with return value from the
918
# key_id() and fingerprint() functions
919
client["key_id"] = (section.get("key_id", "").upper()
920
.replace(" ", ""))
473
client["enabled"] = config.getboolean(client_name, "enabled")
474
921
475
client["fingerprint"] = (section["fingerprint"].upper()
922
476
.replace(" ", ""))
923
477
if "secret" in section:
924
client["secret"] = codecs.decode(section["secret"]
925
.encode("utf-8"),
926
"base64")
478
client["secret"] = section["secret"].decode("base64")
927
479
elif "secfile" in section:
928
480
with open(os.path.expanduser(os.path.expandvars
929
481
(section["secfile"])),
930
482
"rb") as secfile:
931
483
client["secret"] = secfile.read()
932
484
else:
933
raise TypeError("No secret or secfile for section {}"
934
.format(section))
485
raise TypeError("No secret or secfile for section %s"
486
% section)
935
487
client["timeout"] = string_to_delta(section["timeout"])
936
488
client["extended_timeout"] = string_to_delta(
937
489
section["extended_timeout"])
943
495
client["checker_command"] = section["checker"]
944
496
client["last_approval_request"] = None
945
497
client["last_checked_ok"] = None
946
client["last_checker_status"] = -2
498
client["last_checker_status"] = None
499
if client["enabled"]:
500
client["last_enabled"] = datetime.datetime.utcnow()
501
client["expires"] = (datetime.datetime.utcnow()
502
+ client["timeout"])
503
else:
504
client["last_enabled"] = None
505
client["expires"] = None
947
506
948
507
return settings
949
950
def __init__(self, settings, name=None, server_settings=None):
508
509
510
def __init__(self, settings, name = None):
511
"""Note: the 'checker' key in 'config' sets the
512
'checker_command' attribute and *not* the 'checker'
513
attribute."""
951
514
self.name = name
952
if server_settings is None:
953
server_settings = {}
954
self.server_settings = server_settings
955
515
# adding all client settings
956
for setting, value in settings.items():
516
for setting, value in settings.iteritems():
957
517
setattr(self, setting, value)
958
959
if self.enabled:
960
if not hasattr(self, "last_enabled"):
961
self.last_enabled = datetime.datetime.utcnow()
962
if not hasattr(self, "expires"):
963
self.expires = (datetime.datetime.utcnow()
964
+ self.timeout)
965
else:
966
self.last_enabled = None
967
self.expires = None
968
518
969
519
logger.debug("Creating client %r", self.name)
970
logger.debug(" Key ID: %s", self.key_id)
520
# Uppercase and remove spaces from fingerprint for later
521
# comparison purposes with return value from the fingerprint()
522
# function
971
523
logger.debug(" Fingerprint: %s", self.fingerprint)
972
self.created = settings.get("created",
973
datetime.datetime.utcnow())
524
self.created = settings.get("created", datetime.datetime.utcnow())
974
525
975
526
# attributes specific for this server instance
976
527
self.checker = None
980
531
self.current_checker_command = None
981
532
self.approved = None
982
533
self.approvals_pending = 0
983
self.changedstate = multiprocessing_manager.Condition(
984
multiprocessing_manager.Lock())
985
self.client_structure = [attr
986
for attr in self.__dict__.keys()
534
self.changedstate = (multiprocessing_manager
535
.Condition(multiprocessing_manager
536
.Lock()))
537
self.client_structure = [attr for attr in
538
self.__dict__.iterkeys()
987
539
if not attr.startswith("_")]
988
540
self.client_structure.append("client_structure")
989
990
for name, t in inspect.getmembers(
991
type(self), lambda obj: isinstance(obj, property)):
541
542
for name, t in inspect.getmembers(type(self),
543
lambda obj:
544
isinstance(obj,
545
property)):
992
546
if not name.startswith("_"):
993
547
self.client_structure.append(name)
994
548
995
549
# Send notice to process children that client state has changed
996
550
def send_changedstate(self):
997
551
with self.changedstate:
998
552
self.changedstate.notify_all()
999
553
1000
554
def enable(self):
1001
555
"""Start this client's checker and timeout hooks"""
1002
556
if getattr(self, "enabled", False):
1003
557
# Already enabled
1004
558
return
559
self.send_changedstate()
1005
560
self.expires = datetime.datetime.utcnow() + self.timeout
1006
561
self.enabled = True
1007
562
self.last_enabled = datetime.datetime.utcnow()
1008
563
self.init_checker()
1009
self.send_changedstate()
1010
564
1011
565
def disable(self, quiet=True):
1012
566
"""Disable this client."""
1013
567
if not getattr(self, "enabled", False):
1014
568
return False
1015
569
if not quiet:
570
self.send_changedstate()
571
if not quiet:
1016
572
logger.info("Disabling client %s", self.name)
1017
if getattr(self, "disable_initiator_tag", None) is not None:
1018
GLib.source_remove(self.disable_initiator_tag)
573
if getattr(self, "disable_initiator_tag", False):
574
gobject.source_remove(self.disable_initiator_tag)
1019
575
self.disable_initiator_tag = None
1020
576
self.expires = None
1021
if getattr(self, "checker_initiator_tag", None) is not None:
1022
GLib.source_remove(self.checker_initiator_tag)
577
if getattr(self, "checker_initiator_tag", False):
578
gobject.source_remove(self.checker_initiator_tag)
1023
579
self.checker_initiator_tag = None
1024
580
self.stop_checker()
1025
581
self.enabled = False
1026
if not quiet:
1027
self.send_changedstate()
1028
# Do not run this again if called by a GLib.timeout_add
582
# Do not run this again if called by a gobject.timeout_add
1029
583
return False
1030
584
1031
585
def __del__(self):
1032
586
self.disable()
1033
587
1034
588
def init_checker(self):
1035
589
# Schedule a new checker to be started an 'interval' from now,
1036
590
# and every interval from then on.
1037
if self.checker_initiator_tag is not None:
1038
GLib.source_remove(self.checker_initiator_tag)
1039
self.checker_initiator_tag = GLib.timeout_add(
1040
int(self.interval.total_seconds() * 1000),
1041
self.start_checker)
591
self.checker_initiator_tag = (gobject.timeout_add
592
(self.interval_milliseconds(),
593
self.start_checker))
1042
594
# Schedule a disable() when 'timeout' has passed
1043
if self.disable_initiator_tag is not None:
1044
GLib.source_remove(self.disable_initiator_tag)
1045
self.disable_initiator_tag = GLib.timeout_add(
1046
int(self.timeout.total_seconds() * 1000), self.disable)
595
self.disable_initiator_tag = (gobject.timeout_add
596
(self.timeout_milliseconds(),
597
self.disable))
1047
598
# Also start a new checker *right now*.
1048
599
self.start_checker()
1049
1050
def checker_callback(self, source, condition, connection,
1051
command):
600
601
def checker_callback(self, pid, condition, command):
1052
602
"""The checker has completed, so take appropriate actions."""
1053
# Read return code from connection (see call_pipe)
1054
returncode = connection.recv()
1055
connection.close()
1056
if self.checker is not None:
1057
self.checker.join()
1058
603
self.checker_callback_tag = None
1059
604
self.checker = None
1060
1061
if returncode >= 0:
1062
self.last_checker_status = returncode
1063
self.last_checker_signal = None
605
if os.WIFEXITED(condition):
606
self.last_checker_status = os.WEXITSTATUS(condition)
1064
607
if self.last_checker_status == 0:
1065
608
logger.info("Checker for %(name)s succeeded",
1066
609
vars(self))
1067
610
self.checked_ok()
1068
611
else:
1069
logger.info("Checker for %(name)s failed", vars(self))
612
logger.info("Checker for %(name)s failed",
613
vars(self))
1070
614
else:
1071
615
self.last_checker_status = -1
1072
self.last_checker_signal = -returncode
1073
616
logger.warning("Checker for %(name)s crashed?",
1074
617
vars(self))
1075
return False
1076
1077
def checked_ok(self):
1078
"""Assert that the client has been seen, alive and well."""
1079
self.last_checked_ok = datetime.datetime.utcnow()
1080
self.last_checker_status = 0
1081
self.last_checker_signal = None
1082
self.bump_timeout()
1083
1084
def bump_timeout(self, timeout=None):
1085
"""Bump up the timeout for this client."""
618
619
def checked_ok(self, timeout=None):
620
"""Bump up the timeout for this client.
621
622
This should only be called when the client has been seen,
623
alive and well.
624
"""
1086
625
if timeout is None:
1087
626
timeout = self.timeout
627
self.last_checked_ok = datetime.datetime.utcnow()
1088
628
if self.disable_initiator_tag is not None:
1089
GLib.source_remove(self.disable_initiator_tag)
1090
self.disable_initiator_tag = None
629
gobject.source_remove(self.disable_initiator_tag)
1091
630
if getattr(self, "enabled", False):
1092
self.disable_initiator_tag = GLib.timeout_add(
1093
int(timeout.total_seconds() * 1000), self.disable)
631
self.disable_initiator_tag = (gobject.timeout_add
632
(timedelta_to_milliseconds
633
(timeout), self.disable))
1094
634
self.expires = datetime.datetime.utcnow() + timeout
1095
635
1096
636
def need_approval(self):
1097
637
self.last_approval_request = datetime.datetime.utcnow()
1098
638
1099
639
def start_checker(self):
1100
640
"""Start a new checker subprocess if one is not running.
1101
641
1102
642
If a checker already exists, leave it running and do
1103
643
nothing."""
1104
644
# The reason for not killing a running checker is that if we
1105
# did that, and if a checker (for some reason) started running
1106
# slowly and taking more than 'interval' time, then the client
1107
# would inevitably timeout, since no checker would get a
1108
# chance to run to completion. If we instead leave running
645
# did that, then if a checker (for some reason) started
646
# running slowly and taking more than 'interval' time, the
647
# client would inevitably timeout, since no checker would get
648
# a chance to run to completion. If we instead leave running
1109
649
# checkers alone, the checker would have to take more time
1110
650
# than 'timeout' for the client to be disabled, which is as it
1111
651
# should be.
1112
1113
if self.checker is not None and not self.checker.is_alive():
1114
logger.warning("Checker was not alive; joining")
1115
self.checker.join()
1116
self.checker = None
652
653
# If a checker exists, make sure it is not a zombie
654
try:
655
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
656
except (AttributeError, OSError) as error:
657
if (isinstance(error, OSError)
658
and error.errno != errno.ECHILD):
659
raise error
660
else:
661
if pid:
662
logger.warning("Checker was a zombie")
663
gobject.source_remove(self.checker_callback_tag)
664
self.checker_callback(pid, status,
665
self.current_checker_command)
1117
666
# Start a new checker if needed
1118
667
if self.checker is None:
1119
# Escape attributes for the shell
1120
escaped_attrs = {
1121
attr: re.escape(str(getattr(self, attr)))
1122
for attr in self.runtime_expansions}
1123
668
try:
1124
command = self.checker_command % escaped_attrs
1125
except TypeError as error:
1126
logger.error('Could not format string "%s"',
1127
self.checker_command,
1128
exc_info=error)
1129
return True # Try again later
669
# In case checker_command has exactly one % operator
670
command = self.checker_command % self.host
671
except TypeError:
672
# Escape attributes for the shell
673
escaped_attrs = dict(
674
(attr,
675
re.escape(unicode(str(getattr(self, attr, "")),
676
errors=
677
'replace')))
678
for attr in
679
self.runtime_expansions)
680
681
try:
682
command = self.checker_command % escaped_attrs
683
except TypeError as error:
684
logger.error('Could not format string "%s":'
685
' %s', self.checker_command, error)
686
return True # Try again later
1130
687
self.current_checker_command = command
1131
logger.info("Starting checker %r for %s", command,
1132
self.name)
1133
# We don't need to redirect stdout and stderr, since
1134
# in normal mode, that is already done by daemon(),
1135
# and in debug mode we don't want to. (Stdin is
1136
# always replaced by /dev/null.)
1137
# The exception is when not debugging but nevertheless
1138
# running in the foreground; use the previously
1139
# created wnull.
1140
popen_args = {"close_fds": True,
1141
"shell": True,
1142
"cwd": "/"}
1143
if (not self.server_settings["debug"]
1144
and self.server_settings["foreground"]):
1145
popen_args.update({"stdout": wnull,
1146
"stderr": wnull})
1147
pipe = multiprocessing.Pipe(duplex=False)
1148
self.checker = multiprocessing.Process(
1149
target=call_pipe,
1150
args=(pipe[1], subprocess.call, command),
1151
kwargs=popen_args)
1152
self.checker.start()
1153
self.checker_callback_tag = GLib.io_add_watch(
1154
GLib.IOChannel.unix_new(pipe[0].fileno()),
1155
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1156
self.checker_callback, pipe[0], command)
1157
# Re-run this periodically if run by GLib.timeout_add
688
try:
689
logger.info("Starting checker %r for %s",
690
command, self.name)
691
# We don't need to redirect stdout and stderr, since
692
# in normal mode, that is already done by daemon(),
693
# and in debug mode we don't want to. (Stdin is
694
# always replaced by /dev/null.)
695
self.checker = subprocess.Popen(command,
696
close_fds=True,
697
shell=True, cwd="/")
698
self.checker_callback_tag = (gobject.child_watch_add
699
(self.checker.pid,
700
self.checker_callback,
701
data=command))
702
# The checker may have completed before the gobject
703
# watch was added. Check for this.
704
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
705
if pid:
706
gobject.source_remove(self.checker_callback_tag)
707
self.checker_callback(pid, status, command)
708
except OSError as error:
709
logger.error("Failed to start subprocess: %s",
710
error)
711
# Re-run this periodically if run by gobject.timeout_add
1158
712
return True
1159
713
1160
714
def stop_checker(self):
1161
715
"""Force the checker process, if any, to stop."""
1162
716
if self.checker_callback_tag:
1163
GLib.source_remove(self.checker_callback_tag)
717
gobject.source_remove(self.checker_callback_tag)
1164
718
self.checker_callback_tag = None
1165
719
if getattr(self, "checker", None) is None:
1166
720
return
1167
721
logger.debug("Stopping checker for %(name)s", vars(self))
1168
self.checker.terminate()
722
try:
723
os.kill(self.checker.pid, signal.SIGTERM)
724
#time.sleep(0.5)
725
#if self.checker.poll() is None:
726
# os.kill(self.checker.pid, signal.SIGKILL)
727
except OSError as error:
728
if error.errno != errno.ESRCH: # No such process
729
raise
1169
730
self.checker = None
1170
731
1171
732
1172
def dbus_service_property(dbus_interface,
1173
signature="v",
1174
access="readwrite",
1175
byte_arrays=False):
733
def dbus_service_property(dbus_interface, signature="v",
734
access="readwrite", byte_arrays=False):
1176
735
"""Decorators for marking methods of a DBusObjectWithProperties to
1177
736
become properties on the D-Bus.
1178
737
1179
738
The decorated method will be called with no arguments by "Get"
1180
739
and with one argument by "Set".
1181
740
1182
741
The parameters, where they are supported, are the same as
1183
742
dbus.service.method, except there is only "signature", since the
1184
743
type from Get() and the type sent to Set() is the same.
1187
746
# "Set" method, so we fail early here:
1188
747
if byte_arrays and signature != "ay":
1189
748
raise ValueError("Byte arrays not supported for non-'ay'"
1190
" signature {!r}".format(signature))
1191
749
" signature %r" % signature)
1192
750
def decorator(func):
1193
751
func._dbus_is_property = True
1194
752
func._dbus_interface = dbus_interface
1197
755
func._dbus_name = func.__name__
1198
756
if func._dbus_name.endswith("_dbus_property"):
1199
757
func._dbus_name = func._dbus_name[:-14]
1200
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1201
return func
1202
1203
return decorator
1204
1205
1206
def dbus_interface_annotations(dbus_interface):
1207
"""Decorator for marking functions returning interface annotations
1208
1209
Usage:
1210
1211
@dbus_interface_annotations("org.example.Interface")
1212
def _foo(self): # Function name does not matter
1213
return {"org.freedesktop.DBus.Deprecated": "true",
1214
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1215
"false"}
1216
"""
1217
1218
def decorator(func):
1219
func._dbus_is_interface = True
1220
func._dbus_interface = dbus_interface
1221
func._dbus_name = dbus_interface
1222
return func
1223
1224
return decorator
1225
1226
1227
def dbus_annotations(annotations):
1228
"""Decorator to annotate D-Bus methods, signals or properties
1229
Usage:
1230
1231
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1232
"org.freedesktop.DBus.Property."
1233
"EmitsChangedSignal": "false"})
1234
@dbus_service_property("org.example.Interface", signature="b",
1235
access="r")
1236
def Property_dbus_property(self):
1237
return dbus.Boolean(False)
1238
1239
See also the DBusObjectWithAnnotations class.
1240
"""
1241
1242
def decorator(func):
1243
func._dbus_annotations = annotations
1244
return func
1245
758
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
759
return func
1246
760
return decorator
1247
761
1248
762
1249
763
class DBusPropertyException(dbus.exceptions.DBusException):
1250
764
"""A base class for D-Bus property-related exceptions
1251
765
"""
1252
pass
766
def __unicode__(self):
767
return unicode(str(self))
1253
768
1254
769
1255
770
class DBusPropertyAccessException(DBusPropertyException):
1264
779
pass
1265
780
1266
781
1267
class DBusObjectWithAnnotations(dbus.service.Object):
1268
"""A D-Bus object with annotations.
1269
1270
Classes inheriting from this can use the dbus_annotations
1271
decorator to add annotations to methods or signals.
1272
"""
1273
1274
@staticmethod
1275
def _is_dbus_thing(thing):
1276
"""Returns a function testing if an attribute is a D-Bus thing
1277
1278
If called like _is_dbus_thing("method") it returns a function
1279
suitable for use as predicate to inspect.getmembers().
1280
"""
1281
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1282
False)
1283
1284
def _get_all_dbus_things(self, thing):
1285
"""Returns a generator of (name, attribute) pairs
1286
"""
1287
return ((getattr(athing.__get__(self), "_dbus_name", name),
1288
athing.__get__(self))
1289
for cls in self.__class__.__mro__
1290
for name, athing in
1291
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1292
1293
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1294
out_signature="s",
1295
path_keyword='object_path',
1296
connection_keyword='connection')
1297
def Introspect(self, object_path, connection):
1298
"""Overloading of standard D-Bus method.
1299
1300
Inserts annotation tags on methods and signals.
1301
"""
1302
xmlstring = dbus.service.Object.Introspect(self, object_path,
1303
connection)
1304
try:
1305
document = xml.dom.minidom.parseString(xmlstring)
1306
1307
for if_tag in document.getElementsByTagName("interface"):
1308
# Add annotation tags
1309
for typ in ("method", "signal"):
1310
for tag in if_tag.getElementsByTagName(typ):
1311
annots = dict()
1312
for name, prop in (self.
1313
_get_all_dbus_things(typ)):
1314
if (name == tag.getAttribute("name")
1315
and prop._dbus_interface
1316
== if_tag.getAttribute("name")):
1317
annots.update(getattr(
1318
prop, "_dbus_annotations", {}))
1319
for name, value in annots.items():
1320
ann_tag = document.createElement(
1321
"annotation")
1322
ann_tag.setAttribute("name", name)
1323
ann_tag.setAttribute("value", value)
1324
tag.appendChild(ann_tag)
1325
# Add interface annotation tags
1326
for annotation, value in dict(
1327
itertools.chain.from_iterable(
1328
annotations().items()
1329
for name, annotations
1330
in self._get_all_dbus_things("interface")
1331
if name == if_tag.getAttribute("name")
1332
)).items():
1333
ann_tag = document.createElement("annotation")
1334
ann_tag.setAttribute("name", annotation)
1335
ann_tag.setAttribute("value", value)
1336
if_tag.appendChild(ann_tag)
1337
# Fix argument name for the Introspect method itself
1338
if (if_tag.getAttribute("name")
1339
== dbus.INTROSPECTABLE_IFACE):
1340
for cn in if_tag.getElementsByTagName("method"):
1341
if cn.getAttribute("name") == "Introspect":
1342
for arg in cn.getElementsByTagName("arg"):
1343
if (arg.getAttribute("direction")
1344
== "out"):
1345
arg.setAttribute("name",
1346
"xml_data")
1347
xmlstring = document.toxml("utf-8")
1348
document.unlink()
1349
except (AttributeError, xml.dom.DOMException,
1350
xml.parsers.expat.ExpatError) as error:
1351
logger.error("Failed to override Introspection method",
1352
exc_info=error)
1353
return xmlstring
1354
1355
1356
class DBusObjectWithProperties(DBusObjectWithAnnotations):
782
class DBusObjectWithProperties(dbus.service.Object):
1357
783
"""A D-Bus object with properties.
1358
784
1359
785
Classes inheriting from this can use the dbus_service_property
1360
786
decorator to expose methods as D-Bus properties. It exposes the
1361
787
standard Get(), Set(), and GetAll() methods on the D-Bus.
1362
788
"""
1363
789
790
@staticmethod
791
def _is_dbus_property(obj):
792
return getattr(obj, "_dbus_is_property", False)
793
794
def _get_all_dbus_properties(self):
795
"""Returns a generator of (name, attribute) pairs
796
"""
797
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
798
for cls in self.__class__.__mro__
799
for name, prop in
800
inspect.getmembers(cls, self._is_dbus_property))
801
1364
802
def _get_dbus_property(self, interface_name, property_name):
1365
803
"""Returns a bound method if one exists which is a D-Bus
1366
804
property with the specified name and interface.
1367
805
"""
1368
for cls in self.__class__.__mro__:
1369
for name, value in inspect.getmembers(
1370
cls, self._is_dbus_thing("property")):
806
for cls in self.__class__.__mro__:
807
for name, value in (inspect.getmembers
808
(cls, self._is_dbus_property)):
1371
809
if (value._dbus_name == property_name
1372
810
and value._dbus_interface == interface_name):
1373
811
return value.__get__(self)
1374
812
1375
813
# No such property
1376
raise DBusPropertyNotFound("{}:{}.{}".format(
1377
self.dbus_object_path, interface_name, property_name))
1378
1379
@classmethod
1380
def _get_all_interface_names(cls):
1381
"""Get a sequence of all interfaces supported by an object"""
1382
return (name for name in set(getattr(getattr(x, attr),
1383
"_dbus_interface", None)
1384
for x in (inspect.getmro(cls))
1385
for attr in dir(x))
1386
if name is not None)
1387
1388
@dbus.service.method(dbus.PROPERTIES_IFACE,
1389
in_signature="ss",
814
raise DBusPropertyNotFound(self.dbus_object_path + ":"
815
+ interface_name + "."
816
+ property_name)
817
818
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1390
819
out_signature="v")
1391
820
def Get(self, interface_name, property_name):
1392
821
"""Standard D-Bus property Get() method, see D-Bus standard.
1398
827
if not hasattr(value, "variant_level"):
1399
828
return value
1400
829
return type(value)(value, variant_level=value.variant_level+1)
1401
830
1402
831
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1403
832
def Set(self, interface_name, property_name, value):
1404
833
"""Standard D-Bus property Set() method, see D-Bus standard.
1410
839
# The byte_arrays option is not supported yet on
1411
840
# signatures other than "ay".
1412
841
if prop._dbus_signature != "ay":
1413
raise ValueError("Byte arrays not supported for non-"
1414
"'ay' signature {!r}"
1415
.format(prop._dbus_signature))
1416
value = dbus.ByteArray(b''.join(chr(byte)
1417
for byte in value))
842
raise ValueError
843
value = dbus.ByteArray(''.join(unichr(byte)
844
for byte in value))
1418
845
prop(value)
1419
1420
@dbus.service.method(dbus.PROPERTIES_IFACE,
1421
in_signature="s",
846
847
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1422
848
out_signature="a{sv}")
1423
849
def GetAll(self, interface_name):
1424
850
"""Standard D-Bus property GetAll() method, see D-Bus
1425
851
standard.
1426
852
1427
853
Note: Will not include properties with access="write".
1428
854
"""
1429
855
properties = {}
1430
for name, prop in self._get_all_dbus_things("property"):
856
for name, prop in self._get_all_dbus_properties():
1431
857
if (interface_name
1432
858
and interface_name != prop._dbus_interface):
1433
859
# Interface non-empty but did not match
1439
865
if not hasattr(value, "variant_level"):
1440
866
properties[name] = value
1441
867
continue
1442
properties[name] = type(value)(
1443
value, variant_level=value.variant_level + 1)
868
properties[name] = type(value)(value, variant_level=
869
value.variant_level+1)
1444
870
return dbus.Dictionary(properties, signature="sv")
1445
1446
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1447
def PropertiesChanged(self, interface_name, changed_properties,
1448
invalidated_properties):
1449
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1450
standard.
1451
"""
1452
pass
1453
871
1454
872
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1455
873
out_signature="s",
1456
874
path_keyword='object_path',
1457
875
connection_keyword='connection')
1458
876
def Introspect(self, object_path, connection):
1459
"""Overloading of standard D-Bus method.
1460
1461
Inserts property tags and interface annotation tags.
877
"""Standard D-Bus method, overloaded to insert property tags.
1462
878
"""
1463
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1464
object_path,
1465
connection)
879
xmlstring = dbus.service.Object.Introspect(self, object_path,
880
connection)
1466
881
try:
1467
882
document = xml.dom.minidom.parseString(xmlstring)
1468
1469
883
def make_tag(document, name, prop):
1470
884
e = document.createElement("property")
1471
885
e.setAttribute("name", name)
1472
886
e.setAttribute("type", prop._dbus_signature)
1473
887
e.setAttribute("access", prop._dbus_access)
1474
888
return e
1475
1476
889
for if_tag in document.getElementsByTagName("interface"):
1477
# Add property tags
1478
890
for tag in (make_tag(document, name, prop)
1479
891
for name, prop
1480
in self._get_all_dbus_things("property")
892
in self._get_all_dbus_properties()
1481
893
if prop._dbus_interface
1482
894
== if_tag.getAttribute("name")):
1483
895
if_tag.appendChild(tag)
1484
# Add annotation tags for properties
1485
for tag in if_tag.getElementsByTagName("property"):
1486
annots = dict()
1487
for name, prop in self._get_all_dbus_things(
1488
"property"):
1489
if (name == tag.getAttribute("name")
1490
and prop._dbus_interface
1491
== if_tag.getAttribute("name")):
1492
annots.update(getattr(
1493
prop, "_dbus_annotations", {}))
1494
for name, value in annots.items():
1495
ann_tag = document.createElement(
1496
"annotation")
1497
ann_tag.setAttribute("name", name)
1498
ann_tag.setAttribute("value", value)
1499
tag.appendChild(ann_tag)
1500
896
# Add the names to the return values for the
1501
897
# "org.freedesktop.DBus.Properties" methods
1502
898
if (if_tag.getAttribute("name")
1517
913
except (AttributeError, xml.dom.DOMException,
1518
914
xml.parsers.expat.ExpatError) as error:
1519
915
logger.error("Failed to override Introspection method",
1520
exc_info=error)
1521
return xmlstring
1522
1523
1524
try:
1525
dbus.OBJECT_MANAGER_IFACE
1526
except AttributeError:
1527
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1528
1529
1530
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1531
"""A D-Bus object with an ObjectManager.
1532
1533
Classes inheriting from this exposes the standard
1534
GetManagedObjects call and the InterfacesAdded and
1535
InterfacesRemoved signals on the standard
1536
"org.freedesktop.DBus.ObjectManager" interface.
1537
1538
Note: No signals are sent automatically; they must be sent
1539
manually.
1540
"""
1541
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1542
out_signature="a{oa{sa{sv}}}")
1543
def GetManagedObjects(self):
1544
"""This function must be overridden"""
1545
raise NotImplementedError()
1546
1547
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1548
signature="oa{sa{sv}}")
1549
def InterfacesAdded(self, object_path, interfaces_and_properties):
1550
pass
1551
1552
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1553
def InterfacesRemoved(self, object_path, interfaces):
1554
pass
1555
1556
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1557
out_signature="s",
1558
path_keyword='object_path',
1559
connection_keyword='connection')
1560
def Introspect(self, object_path, connection):
1561
"""Overloading of standard D-Bus method.
1562
1563
Override return argument name of GetManagedObjects to be
1564
"objpath_interfaces_and_properties"
1565
"""
1566
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1567
object_path,
1568
connection)
1569
try:
1570
document = xml.dom.minidom.parseString(xmlstring)
1571
1572
for if_tag in document.getElementsByTagName("interface"):
1573
# Fix argument name for the GetManagedObjects method
1574
if (if_tag.getAttribute("name")
1575
== dbus.OBJECT_MANAGER_IFACE):
1576
for cn in if_tag.getElementsByTagName("method"):
1577
if (cn.getAttribute("name")
1578
== "GetManagedObjects"):
1579
for arg in cn.getElementsByTagName("arg"):
1580
if (arg.getAttribute("direction")
1581
== "out"):
1582
arg.setAttribute(
1583
"name",
1584
"objpath_interfaces"
1585
"_and_properties")
1586
xmlstring = document.toxml("utf-8")
1587
document.unlink()
1588
except (AttributeError, xml.dom.DOMException,
1589
xml.parsers.expat.ExpatError) as error:
1590
logger.error("Failed to override Introspection method",
1591
exc_info=error)
1592
return xmlstring
1593
1594
1595
def datetime_to_dbus(dt, variant_level=0):
916
error)
917
return xmlstring
918
919
920
def datetime_to_dbus (dt, variant_level=0):
1596
921
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1597
922
if dt is None:
1598
return dbus.String("", variant_level=variant_level)
1599
return dbus.String(dt.isoformat(), variant_level=variant_level)
1600
1601
1602
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1603
"""A class decorator; applied to a subclass of
1604
dbus.service.Object, it will add alternate D-Bus attributes with
1605
interface names according to the "alt_interface_names" mapping.
1606
Usage:
1607
1608
@alternate_dbus_interfaces({"org.example.Interface":
1609
"net.example.AlternateInterface"})
1610
class SampleDBusObject(dbus.service.Object):
1611
@dbus.service.method("org.example.Interface")
1612
def SampleDBusMethod():
1613
pass
1614
1615
The above "SampleDBusMethod" on "SampleDBusObject" will be
1616
reachable via two interfaces: "org.example.Interface" and
1617
"net.example.AlternateInterface", the latter of which will have
1618
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1619
"true", unless "deprecate" is passed with a False value.
1620
1621
This works for methods and signals, and also for D-Bus properties
1622
(from DBusObjectWithProperties) and interfaces (from the
1623
dbus_interface_annotations decorator).
923
return dbus.String("", variant_level = variant_level)
924
return dbus.String(dt.isoformat(),
925
variant_level=variant_level)
926
927
928
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
929
.__metaclass__):
930
"""Applied to an empty subclass of a D-Bus object, this metaclass
931
will add additional D-Bus attributes matching a certain pattern.
1624
932
"""
1625
1626
def wrapper(cls):
1627
for orig_interface_name, alt_interface_name in (
1628
alt_interface_names.items()):
1629
attr = {}
1630
interface_names = set()
1631
# Go though all attributes of the class
1632
for attrname, attribute in inspect.getmembers(cls):
933
def __new__(mcs, name, bases, attr):
934
# Go through all the base classes which could have D-Bus
935
# methods, signals, or properties in them
936
for base in (b for b in bases
937
if issubclass(b, dbus.service.Object)):
938
# Go though all attributes of the base class
939
for attrname, attribute in inspect.getmembers(base):
1633
940
# Ignore non-D-Bus attributes, and D-Bus attributes
1634
941
# with the wrong interface name
1635
942
if (not hasattr(attribute, "_dbus_interface")
1636
or not attribute._dbus_interface.startswith(
1637
orig_interface_name)):
943
or not attribute._dbus_interface
944
.startswith("se.recompile.Mandos")):
1638
945
continue
1639
946
# Create an alternate D-Bus interface name based on
1640
947
# the current name
1641
alt_interface = attribute._dbus_interface.replace(
1642
orig_interface_name, alt_interface_name)
1643
interface_names.add(alt_interface)
948
alt_interface = (attribute._dbus_interface
949
.replace("se.recompile.Mandos",
950
"se.bsnet.fukt.Mandos"))
1644
951
# Is this a D-Bus signal?
1645
952
if getattr(attribute, "_dbus_is_signal", False):
1646
# Extract the original non-method undecorated
1647
# function by black magic
1648
if sys.version_info.major == 2:
1649
nonmethod_func = (dict(
953
# Extract the original non-method function by
954
# black magic
955
nonmethod_func = (dict(
1650
956
zip(attribute.func_code.co_freevars,
1651
attribute.__closure__))
1652
["func"].cell_contents)
1653
else:
1654
nonmethod_func = (dict(
1655
zip(attribute.__code__.co_freevars,
1656
attribute.__closure__))
1657
["func"].cell_contents)
957
attribute.__closure__))["func"]
958
.cell_contents)
1658
959
# Create a new, but exactly alike, function
1659
960
# object, and decorate it to be a new D-Bus signal
1660
961
# with the alternate D-Bus interface name
1661
new_function = copy_function(nonmethod_func)
1662
new_function = (dbus.service.signal(
1663
alt_interface,
1664
attribute._dbus_signature)(new_function))
1665
# Copy annotations, if any
1666
try:
1667
new_function._dbus_annotations = dict(
1668
attribute._dbus_annotations)
1669
except AttributeError:
1670
pass
1671
962
new_function = (dbus.service.signal
963
(alt_interface,
964
attribute._dbus_signature)
965
(types.FunctionType(
966
nonmethod_func.func_code,
967
nonmethod_func.func_globals,
968
nonmethod_func.func_name,
969
nonmethod_func.func_defaults,
970
nonmethod_func.func_closure)))
1672
971
# Define a creator of a function to call both the
1673
# original and alternate functions, so both the
1674
# original and alternate signals gets sent when
1675
# the function is called
972
# old and new functions, so both the old and new
973
# signals gets sent when the function is called
1676
974
def fixscope(func1, func2):
1677
975
"""This function is a scope container to pass
1678
976
func1 and func2 to the "call_both" function
1679
977
outside of its arguments"""
1680
1681
@functools.wraps(func2)
1682
978
def call_both(*args, **kwargs):
1683
979
"""This function will emit two D-Bus
1684
980
signals by calling func1 and func2"""
1685
981
func1(*args, **kwargs)
1686
982
func2(*args, **kwargs)
1687
# Make wrapper function look like a D-Bus
1688
# signal
1689
for name, attr in inspect.getmembers(func2):
1690
if name.startswith("_dbus_"):
1691
setattr(call_both, name, attr)
1692
1693
983
return call_both
1694
984
# Create the "call_both" function and add it to
1695
985
# the class
1696
attr[attrname] = fixscope(attribute, new_function)
986
attr[attrname] = fixscope(attribute,
987
new_function)
1697
988
# Is this a D-Bus method?
1698
989
elif getattr(attribute, "_dbus_is_method", False):
1699
990
# Create a new, but exactly alike, function
1700
991
# object. Decorate it to be a new D-Bus method
1701
992
# with the alternate D-Bus interface name. Add it
1702
993
# to the class.
1703
attr[attrname] = (
1704
dbus.service.method(
1705
alt_interface,
1706
attribute._dbus_in_signature,
1707
attribute._dbus_out_signature)
1708
(copy_function(attribute)))
1709
# Copy annotations, if any
1710
try:
1711
attr[attrname]._dbus_annotations = dict(
1712
attribute._dbus_annotations)
1713
except AttributeError:
1714
pass
994
attr[attrname] = (dbus.service.method
995
(alt_interface,
996
attribute._dbus_in_signature,
997
attribute._dbus_out_signature)
998
(types.FunctionType
999
(attribute.func_code,
1000
attribute.func_globals,
1001
attribute.func_name,
1002
attribute.func_defaults,
1003
attribute.func_closure)))
1715
1004
# Is this a D-Bus property?
1716
1005
elif getattr(attribute, "_dbus_is_property", False):
1717
1006
# Create a new, but exactly alike, function
1718
1007
# object, and decorate it to be a new D-Bus
1719
1008
# property with the alternate D-Bus interface
1720
1009
# name. Add it to the class.
1721
attr[attrname] = (dbus_service_property(
1722
alt_interface, attribute._dbus_signature,
1723
attribute._dbus_access,
1724
attribute._dbus_get_args_options
1725
["byte_arrays"])
1726
(copy_function(attribute)))
1727
# Copy annotations, if any
1728
try:
1729
attr[attrname]._dbus_annotations = dict(
1730
attribute._dbus_annotations)
1731
except AttributeError:
1732
pass
1733
# Is this a D-Bus interface?
1734
elif getattr(attribute, "_dbus_is_interface", False):
1735
# Create a new, but exactly alike, function
1736
# object. Decorate it to be a new D-Bus interface
1737
# with the alternate D-Bus interface name. Add it
1738
# to the class.
1739
attr[attrname] = (
1740
dbus_interface_annotations(alt_interface)
1741
(copy_function(attribute)))
1742
if deprecate:
1743
# Deprecate all alternate interfaces
1744
iname = "_AlternateDBusNames_interface_annotation{}"
1745
for interface_name in interface_names:
1746
1747
@dbus_interface_annotations(interface_name)
1748
def func(self):
1749
return {"org.freedesktop.DBus.Deprecated":
1750
"true"}
1751
# Find an unused name
1752
for aname in (iname.format(i)
1753
for i in itertools.count()):
1754
if aname not in attr:
1755
attr[aname] = func
1756
break
1757
if interface_names:
1758
# Replace the class with a new subclass of it with
1759
# methods, signals, etc. as created above.
1760
if sys.version_info.major == 2:
1761
cls = type(b"{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
else:
1764
cls = type("{}Alternate".format(cls.__name__),
1765
(cls, ), attr)
1766
return cls
1767
1768
return wrapper
1769
1770
1771
@alternate_dbus_interfaces({"se.recompile.Mandos":
1772
"se.bsnet.fukt.Mandos"})
1010
attr[attrname] = (dbus_service_property
1011
(alt_interface,
1012
attribute._dbus_signature,
1013
attribute._dbus_access,
1014
attribute
1015
._dbus_get_args_options
1016
["byte_arrays"])
1017
(types.FunctionType
1018
(attribute.func_code,
1019
attribute.func_globals,
1020
attribute.func_name,
1021
attribute.func_defaults,
1022
attribute.func_closure)))
1023
return type.__new__(mcs, name, bases, attr)
1024
1025
1773
1026
class ClientDBus(Client, DBusObjectWithProperties):
1774
1027
"""A Client class using D-Bus
1775
1028
1776
1029
Attributes:
1777
1030
dbus_object_path: dbus.ObjectPath
1778
1031
bus: dbus.SystemBus()
1779
1032
"""
1780
1033
1781
1034
runtime_expansions = (Client.runtime_expansions
1782
+ ("dbus_object_path", ))
1783
1784
_interface = "se.recompile.Mandos.Client"
1785
1035
+ ("dbus_object_path",))
1036
1786
1037
# dbus.service.Object doesn't use super(), so we can't either.
1787
1788
def __init__(self, bus=None, *args, **kwargs):
1038
1039
def __init__(self, bus = None, *args, **kwargs):
1789
1040
self.bus = bus
1790
1041
Client.__init__(self, *args, **kwargs)
1042
self._approvals_pending = 0
1043
1044
self._approvals_pending = 0
1791
1045
# Only now, when this client is initialized, can it show up on
1792
1046
# the D-Bus
1793
client_object_name = str(self.name).translate(
1047
client_object_name = unicode(self.name).translate(
1794
1048
{ord("."): ord("_"),
1795
1049
ord("-"): ord("_")})
1796
self.dbus_object_path = dbus.ObjectPath(
1797
"/clients/" + client_object_name)
1050
self.dbus_object_path = (dbus.ObjectPath
1051
("/clients/" + client_object_name))
1798
1052
DBusObjectWithProperties.__init__(self, self.bus,
1799
1053
self.dbus_object_path)
1800
1801
def notifychangeproperty(transform_func, dbus_name,
1802
type_func=lambda x: x,
1803
variant_level=1,
1804
invalidate_only=False,
1805
_interface=_interface):
1054
1055
def notifychangeproperty(transform_func,
1056
dbus_name, type_func=lambda x: x,
1057
variant_level=1):
1806
1058
""" Modify a variable so that it's a property which announces
1807
1059
its changes to DBus.
1808
1060
1809
1061
transform_fun: Function that takes a value and a variant_level
1810
1062
and transforms it to a D-Bus type.
1811
1063
dbus_name: D-Bus name of the variable
1813
1065
to the D-Bus. Default: no transform
1814
1066
variant_level: D-Bus variant level. Default: 1
1815
1067
"""
1816
attrname = "_{}".format(dbus_name)
1817
1068
attrname = "_{0}".format(dbus_name)
1818
1069
def setter(self, value):
1819
1070
if hasattr(self, "dbus_object_path"):
1820
1071
if (not hasattr(self, attrname) or
1821
1072
type_func(getattr(self, attrname, None))
1822
1073
!= type_func(value)):
1823
if invalidate_only:
1824
self.PropertiesChanged(
1825
_interface, dbus.Dictionary(),
1826
dbus.Array((dbus_name, )))
1827
else:
1828
dbus_value = transform_func(
1829
type_func(value),
1830
variant_level=variant_level)
1831
self.PropertyChanged(dbus.String(dbus_name),
1832
dbus_value)
1833
self.PropertiesChanged(
1834
_interface,
1835
dbus.Dictionary({dbus.String(dbus_name):
1836
dbus_value}),
1837
dbus.Array())
1074
dbus_value = transform_func(type_func(value),
1075
variant_level
1076
=variant_level)
1077
self.PropertyChanged(dbus.String(dbus_name),
1078
dbus_value)
1838
1079
setattr(self, attrname, value)
1839
1080
1840
1081
return property(lambda self: getattr(self, attrname), setter)
1841
1082
1083
1842
1084
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1843
1085
approvals_pending = notifychangeproperty(dbus.Boolean,
1844
1086
"ApprovalPending",
1845
type_func=bool)
1087
type_func = bool)
1846
1088
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1847
1089
last_enabled = notifychangeproperty(datetime_to_dbus,
1848
1090
"LastEnabled")
1849
checker = notifychangeproperty(
1850
dbus.Boolean, "CheckerRunning",
1851
type_func=lambda checker: checker is not None)
1091
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1092
type_func = lambda checker:
1093
checker is not None)
1852
1094
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1853
1095
"LastCheckedOK")
1854
last_checker_status = notifychangeproperty(dbus.Int16,
1855
"LastCheckerStatus")
1856
1096
last_approval_request = notifychangeproperty(
1857
1097
datetime_to_dbus, "LastApprovalRequest")
1858
1098
approved_by_default = notifychangeproperty(dbus.Boolean,
1859
1099
"ApprovedByDefault")
1860
approval_delay = notifychangeproperty(
1861
dbus.UInt64, "ApprovalDelay",
1862
type_func=lambda td: td.total_seconds() * 1000)
1100
approval_delay = notifychangeproperty(dbus.UInt64,
1101
"ApprovalDelay",
1102
type_func =
1103
timedelta_to_milliseconds)
1863
1104
approval_duration = notifychangeproperty(
1864
1105
dbus.UInt64, "ApprovalDuration",
1865
type_func=lambda td: td.total_seconds() * 1000)
1106
type_func = timedelta_to_milliseconds)
1866
1107
host = notifychangeproperty(dbus.String, "Host")
1867
timeout = notifychangeproperty(
1868
dbus.UInt64, "Timeout",
1869
type_func=lambda td: td.total_seconds() * 1000)
1108
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1109
type_func =
1110
timedelta_to_milliseconds)
1870
1111
extended_timeout = notifychangeproperty(
1871
1112
dbus.UInt64, "ExtendedTimeout",
1872
type_func=lambda td: td.total_seconds() * 1000)
1873
interval = notifychangeproperty(
1874
dbus.UInt64, "Interval",
1875
type_func=lambda td: td.total_seconds() * 1000)
1113
type_func = timedelta_to_milliseconds)
1114
interval = notifychangeproperty(dbus.UInt64,
1115
"Interval",
1116
type_func =
1117
timedelta_to_milliseconds)
1876
1118
checker_command = notifychangeproperty(dbus.String, "Checker")
1877
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1878
invalidate_only=True)
1879
1119
1880
1120
del notifychangeproperty
1881
1121
1882
1122
def __del__(self, *args, **kwargs):
1883
1123
try:
1884
1124
self.remove_from_connection()
1887
1127
if hasattr(DBusObjectWithProperties, "__del__"):
1888
1128
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1889
1129
Client.__del__(self, *args, **kwargs)
1890
1891
def checker_callback(self, source, condition,
1892
connection, command, *args, **kwargs):
1893
ret = Client.checker_callback(self, source, condition,
1894
connection, command, *args,
1895
**kwargs)
1896
exitstatus = self.last_checker_status
1897
if exitstatus >= 0:
1130
1131
def checker_callback(self, pid, condition, command,
1132
*args, **kwargs):
1133
self.checker_callback_tag = None
1134
self.checker = None
1135
if os.WIFEXITED(condition):
1136
exitstatus = os.WEXITSTATUS(condition)
1898
1137
# Emit D-Bus signal
1899
1138
self.CheckerCompleted(dbus.Int16(exitstatus),
1900
# This is specific to GNU libC
1901
dbus.Int64(exitstatus << 8),
1139
dbus.Int64(condition),
1902
1140
dbus.String(command))
1903
1141
else:
1904
1142
# Emit D-Bus signal
1905
1143
self.CheckerCompleted(dbus.Int16(-1),
1906
dbus.Int64(
1907
# This is specific to GNU libC
1908
(exitstatus << 8)
1909
| self.last_checker_signal),
1144
dbus.Int64(condition),
1910
1145
dbus.String(command))
1911
return ret
1912
1146
1147
return Client.checker_callback(self, pid, condition, command,
1148
*args, **kwargs)
1149
1913
1150
def start_checker(self, *args, **kwargs):
1914
old_checker_pid = getattr(self.checker, "pid", None)
1151
old_checker = self.checker
1152
if self.checker is not None:
1153
old_checker_pid = self.checker.pid
1154
else:
1155
old_checker_pid = None
1915
1156
r = Client.start_checker(self, *args, **kwargs)
1916
1157
# Only if new checker process was started
1917
1158
if (self.checker is not None
1919
1160
# Emit D-Bus signal
1920
1161
self.CheckerStarted(self.current_checker_command)
1921
1162
return r
1922
1163
1923
1164
def _reset_approved(self):
1924
1165
self.approved = None
1925
1166
return False
1926
1167
1927
1168
def approve(self, value=True):
1169
self.send_changedstate()
1928
1170
self.approved = value
1929
GLib.timeout_add(int(self.approval_duration.total_seconds()
1930
* 1000), self._reset_approved)
1931
self.send_changedstate()
1932
1933
# D-Bus methods, signals & properties
1934
1935
# Interfaces
1936
1937
# Signals
1938
1171
gobject.timeout_add(timedelta_to_milliseconds
1172
(self.approval_duration),
1173
self._reset_approved)
1174
1175
1176
## D-Bus methods, signals & properties
1177
_interface = "se.recompile.Mandos.Client"
1178
1179
## Signals
1180
1939
1181
# CheckerCompleted - signal
1940
1182
@dbus.service.signal(_interface, signature="nxs")
1941
1183
def CheckerCompleted(self, exitcode, waitstatus, command):
1942
1184
"D-Bus signal"
1943
1185
pass
1944
1186
1945
1187
# CheckerStarted - signal
1946
1188
@dbus.service.signal(_interface, signature="s")
1947
1189
def CheckerStarted(self, command):
1948
1190
"D-Bus signal"
1949
1191
pass
1950
1192
1951
1193
# PropertyChanged - signal
1952
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1953
1194
@dbus.service.signal(_interface, signature="sv")
1954
1195
def PropertyChanged(self, property, value):
1955
1196
"D-Bus signal"
1956
1197
pass
1957
1198
1958
1199
# GotSecret - signal
1959
1200
@dbus.service.signal(_interface)
1960
1201
def GotSecret(self):
1963
1204
server to mandos-client
1964
1205
"""
1965
1206
pass
1966
1207
1967
1208
# Rejected - signal
1968
1209
@dbus.service.signal(_interface, signature="s")
1969
1210
def Rejected(self, reason):
1970
1211
"D-Bus signal"
1971
1212
pass
1972
1213
1973
1214
# NeedApproval - signal
1974
1215
@dbus.service.signal(_interface, signature="tb")
1975
1216
def NeedApproval(self, timeout, default):
1976
1217
"D-Bus signal"
1977
1218
return self.need_approval()
1978
1979
# Methods
1980
1219
1220
# NeRwequest - signal
1221
@dbus.service.signal(_interface, signature="s")
1222
def NewRequest(self, ip):
1223
"""D-Bus signal
1224
Is sent after a client request a password.
1225
"""
1226
pass
1227
1228
## Methods
1229
1981
1230
# Approve - method
1982
1231
@dbus.service.method(_interface, in_signature="b")
1983
1232
def Approve(self, value):
1984
1233
self.approve(value)
1985
1234
1986
1235
# CheckedOK - method
1987
1236
@dbus.service.method(_interface)
1988
1237
def CheckedOK(self):
1989
1238
self.checked_ok()
1990
1239
1991
1240
# Enable - method
1992
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1993
1241
@dbus.service.method(_interface)
1994
1242
def Enable(self):
1995
1243
"D-Bus method"
1996
1244
self.enable()
1997
1245
1998
1246
# StartChecker - method
1999
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2000
1247
@dbus.service.method(_interface)
2001
1248
def StartChecker(self):
2002
1249
"D-Bus method"
2003
1250
self.start_checker()
2004
1251
2005
1252
# Disable - method
2006
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2007
1253
@dbus.service.method(_interface)
2008
1254
def Disable(self):
2009
1255
"D-Bus method"
2010
1256
self.disable()
2011
1257
2012
1258
# StopChecker - method
2013
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2014
1259
@dbus.service.method(_interface)
2015
1260
def StopChecker(self):
2016
1261
self.stop_checker()
2017
2018
# Properties
2019
1262
1263
## Properties
1264
2020
1265
# ApprovalPending - property
2021
1266
@dbus_service_property(_interface, signature="b", access="read")
2022
1267
def ApprovalPending_dbus_property(self):
2023
1268
return dbus.Boolean(bool(self.approvals_pending))
2024
1269
2025
1270
# ApprovedByDefault - property
2026
@dbus_service_property(_interface,
2027
signature="b",
1271
@dbus_service_property(_interface, signature="b",
2028
1272
access="readwrite")
2029
1273
def ApprovedByDefault_dbus_property(self, value=None):
2030
1274
if value is None: # get
2031
1275
return dbus.Boolean(self.approved_by_default)
2032
1276
self.approved_by_default = bool(value)
2033
1277
2034
1278
# ApprovalDelay - property
2035
@dbus_service_property(_interface,
2036
signature="t",
1279
@dbus_service_property(_interface, signature="t",
2037
1280
access="readwrite")
2038
1281
def ApprovalDelay_dbus_property(self, value=None):
2039
1282
if value is None: # get
2040
return dbus.UInt64(self.approval_delay.total_seconds()
2041
* 1000)
1283
return dbus.UInt64(self.approval_delay_milliseconds())
2042
1284
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2043
1285
2044
1286
# ApprovalDuration - property
2045
@dbus_service_property(_interface,
2046
signature="t",
1287
@dbus_service_property(_interface, signature="t",
2047
1288
access="readwrite")
2048
1289
def ApprovalDuration_dbus_property(self, value=None):
2049
1290
if value is None: # get
2050
return dbus.UInt64(self.approval_duration.total_seconds()
2051
* 1000)
1291
return dbus.UInt64(timedelta_to_milliseconds(
1292
self.approval_duration))
2052
1293
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2053
1294
2054
1295
# Name - property
2055
@dbus_annotations(
2056
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2057
1296
@dbus_service_property(_interface, signature="s", access="read")
2058
1297
def Name_dbus_property(self):
2059
1298
return dbus.String(self.name)
2060
2061
# KeyID - property
2062
@dbus_annotations(
2063
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2064
@dbus_service_property(_interface, signature="s", access="read")
2065
def KeyID_dbus_property(self):
2066
return dbus.String(self.key_id)
2067
1299
2068
1300
# Fingerprint - property
2069
@dbus_annotations(
2070
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2071
1301
@dbus_service_property(_interface, signature="s", access="read")
2072
1302
def Fingerprint_dbus_property(self):
2073
1303
return dbus.String(self.fingerprint)
2074
1304
2075
1305
# Host - property
2076
@dbus_service_property(_interface,
2077
signature="s",
1306
@dbus_service_property(_interface, signature="s",
2078
1307
access="readwrite")
2079
1308
def Host_dbus_property(self, value=None):
2080
1309
if value is None: # get
2081
1310
return dbus.String(self.host)
2082
self.host = str(value)
2083
1311
self.host = unicode(value)
1312
2084
1313
# Created - property
2085
@dbus_annotations(
2086
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2087
1314
@dbus_service_property(_interface, signature="s", access="read")
2088
1315
def Created_dbus_property(self):
2089
1316
return datetime_to_dbus(self.created)
2090
1317
2091
1318
# LastEnabled - property
2092
1319
@dbus_service_property(_interface, signature="s", access="read")
2093
1320
def LastEnabled_dbus_property(self):
2094
1321
return datetime_to_dbus(self.last_enabled)
2095
1322
2096
1323
# Enabled - property
2097
@dbus_service_property(_interface,
2098
signature="b",
1324
@dbus_service_property(_interface, signature="b",
2099
1325
access="readwrite")
2100
1326
def Enabled_dbus_property(self, value=None):
2101
1327
if value is None: # get
2104
1330
self.enable()
2105
1331
else:
2106
1332
self.disable()
2107
1333
2108
1334
# LastCheckedOK - property
2109
@dbus_service_property(_interface,
2110
signature="s",
1335
@dbus_service_property(_interface, signature="s",
2111
1336
access="readwrite")
2112
1337
def LastCheckedOK_dbus_property(self, value=None):
2113
1338
if value is not None:
2114
1339
self.checked_ok()
2115
1340
return
2116
1341
return datetime_to_dbus(self.last_checked_ok)
2117
2118
# LastCheckerStatus - property
2119
@dbus_service_property(_interface, signature="n", access="read")
2120
def LastCheckerStatus_dbus_property(self):
2121
return dbus.Int16(self.last_checker_status)
2122
1342
2123
1343
# Expires - property
2124
1344
@dbus_service_property(_interface, signature="s", access="read")
2125
1345
def Expires_dbus_property(self):
2126
1346
return datetime_to_dbus(self.expires)
2127
1347
2128
1348
# LastApprovalRequest - property
2129
1349
@dbus_service_property(_interface, signature="s", access="read")
2130
1350
def LastApprovalRequest_dbus_property(self):
2131
1351
return datetime_to_dbus(self.last_approval_request)
2132
1352
2133
1353
# Timeout - property
2134
@dbus_service_property(_interface,
2135
signature="t",
1354
@dbus_service_property(_interface, signature="t",
2136
1355
access="readwrite")
2137
1356
def Timeout_dbus_property(self, value=None):
2138
1357
if value is None: # get
2139
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2140
old_timeout = self.timeout
1358
return dbus.UInt64(self.timeout_milliseconds())
2141
1359
self.timeout = datetime.timedelta(0, 0, 0, value)
2142
# Reschedule disabling
2143
if self.enabled:
2144
now = datetime.datetime.utcnow()
2145
self.expires += self.timeout - old_timeout
2146
if self.expires <= now:
2147
# The timeout has passed
2148
self.disable()
2149
else:
2150
if (getattr(self, "disable_initiator_tag", None)
2151
is None):
2152
return
2153
GLib.source_remove(self.disable_initiator_tag)
2154
self.disable_initiator_tag = GLib.timeout_add(
2155
int((self.expires - now).total_seconds() * 1000),
2156
self.disable)
2157
1360
if getattr(self, "disable_initiator_tag", None) is None:
1361
return
1362
# Reschedule timeout
1363
gobject.source_remove(self.disable_initiator_tag)
1364
self.disable_initiator_tag = None
1365
self.expires = None
1366
time_to_die = timedelta_to_milliseconds((self
1367
.last_checked_ok
1368
+ self.timeout)
1369
- datetime.datetime
1370
.utcnow())
1371
if time_to_die <= 0:
1372
# The timeout has passed
1373
self.disable()
1374
else:
1375
self.expires = (datetime.datetime.utcnow()
1376
+ datetime.timedelta(milliseconds =
1377
time_to_die))
1378
self.disable_initiator_tag = (gobject.timeout_add
1379
(time_to_die, self.disable))
1380
2158
1381
# ExtendedTimeout - property
2159
@dbus_service_property(_interface,
2160
signature="t",
1382
@dbus_service_property(_interface, signature="t",
2161
1383
access="readwrite")
2162
1384
def ExtendedTimeout_dbus_property(self, value=None):
2163
1385
if value is None: # get
2164
return dbus.UInt64(self.extended_timeout.total_seconds()
2165
* 1000)
1386
return dbus.UInt64(self.extended_timeout_milliseconds())
2166
1387
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2167
1388
2168
1389
# Interval - property
2169
@dbus_service_property(_interface,
2170
signature="t",
1390
@dbus_service_property(_interface, signature="t",
2171
1391
access="readwrite")
2172
1392
def Interval_dbus_property(self, value=None):
2173
1393
if value is None: # get
2174
return dbus.UInt64(self.interval.total_seconds() * 1000)
1394
return dbus.UInt64(self.interval_milliseconds())
2175
1395
self.interval = datetime.timedelta(0, 0, 0, value)
2176
1396
if getattr(self, "checker_initiator_tag", None) is None:
2177
1397
return
2178
1398
if self.enabled:
2179
1399
# Reschedule checker run
2180
GLib.source_remove(self.checker_initiator_tag)
2181
self.checker_initiator_tag = GLib.timeout_add(
2182
value, self.start_checker)
2183
self.start_checker() # Start one now, too
2184
1400
gobject.source_remove(self.checker_initiator_tag)
1401
self.checker_initiator_tag = (gobject.timeout_add
1402
(value, self.start_checker))
1403
self.start_checker() # Start one now, too
1404
2185
1405
# Checker - property
2186
@dbus_service_property(_interface,
2187
signature="s",
1406
@dbus_service_property(_interface, signature="s",
2188
1407
access="readwrite")
2189
1408
def Checker_dbus_property(self, value=None):
2190
1409
if value is None: # get
2191
1410
return dbus.String(self.checker_command)
2192
self.checker_command = str(value)
2193
1411
self.checker_command = unicode(value)
1412
2194
1413
# CheckerRunning - property
2195
@dbus_service_property(_interface,
2196
signature="b",
1414
@dbus_service_property(_interface, signature="b",
2197
1415
access="readwrite")
2198
1416
def CheckerRunning_dbus_property(self, value=None):
2199
1417
if value is None: # get
2202
1420
self.start_checker()
2203
1421
else:
2204
1422
self.stop_checker()
2205
1423
2206
1424
# ObjectPath - property
2207
@dbus_annotations(
2208
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2209
"org.freedesktop.DBus.Deprecated": "true"})
2210
1425
@dbus_service_property(_interface, signature="o", access="read")
2211
1426
def ObjectPath_dbus_property(self):
2212
return self.dbus_object_path # is already a dbus.ObjectPath
2213
1427
return self.dbus_object_path # is already a dbus.ObjectPath
1428
2214
1429
# Secret = property
2215
@dbus_annotations(
2216
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2217
"invalidates"})
2218
@dbus_service_property(_interface,
2219
signature="ay",
2220
access="write",
2221
byte_arrays=True)
1430
@dbus_service_property(_interface, signature="ay",
1431
access="write", byte_arrays=True)
2222
1432
def Secret_dbus_property(self, value):
2223
self.secret = bytes(value)
2224
1433
self.secret = str(value)
1434
2225
1435
del _interface
2226
1436
2227
1437
2228
class ProxyClient:
2229
def __init__(self, child_pipe, key_id, fpr, address):
1438
class ProxyClient(object):
1439
def __init__(self, child_pipe, fpr, address):
2230
1440
self._pipe = child_pipe
2231
self._pipe.send(('init', key_id, fpr, address))
1441
self._pipe.send(('init', fpr, address))
2232
1442
if not self._pipe.recv():
2233
raise KeyError(key_id or fpr)
2234
1443
raise KeyError()
1444
2235
1445
def __getattribute__(self, name):
2236
1446
if name == '_pipe':
2237
1447
return super(ProxyClient, self).__getattribute__(name)
2240
1450
if data[0] == 'data':
2241
1451
return data[1]
2242
1452
if data[0] == 'function':
2243
2244
1453
def func(*args, **kwargs):
2245
1454
self._pipe.send(('funcall', name, args, kwargs))
2246
1455
return self._pipe.recv()[1]
2247
2248
1456
return func
2249
1457
2250
1458
def __setattr__(self, name, value):
2251
1459
if name == '_pipe':
2252
1460
return super(ProxyClient, self).__setattr__(name, value)
2253
1461
self._pipe.send(('setattr', name, value))
2254
1462
2255
1463
1464
class ClientDBusTransitional(ClientDBus):
1465
__metaclass__ = AlternateDBusNamesMetaclass
1466
1467
2256
1468
class ClientHandler(socketserver.BaseRequestHandler, object):
2257
1469
"""A class to handle client connections.
2258
1470
2259
1471
Instantiated once for each connection to handle it.
2260
1472
Note: This will run in its own forked process."""
2261
1473
2262
1474
def handle(self):
2263
1475
with contextlib.closing(self.server.child_pipe) as child_pipe:
2264
1476
logger.info("TCP connection from: %s",
2265
str(self.client_address))
1477
unicode(self.client_address))
2266
1478
logger.debug("Pipe FD: %d",
2267
1479
self.server.child_pipe.fileno())
2268
2269
session = gnutls.ClientSession(self.request)
2270
2271
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2272
# "+AES-256-CBC", "+SHA1",
2273
# "+COMP-NULL", "+CTYPE-OPENPGP",
2274
# "+DHE-DSS"))
1480
1481
session = (gnutls.connection
1482
.ClientSession(self.request,
1483
gnutls.connection
1484
.X509Credentials()))
1485
1486
# Note: gnutls.connection.X509Credentials is really a
1487
# generic GnuTLS certificate credentials object so long as
1488
# no X.509 keys are added to it. Therefore, we can use it
1489
# here despite using OpenPGP certificates.
1490
1491
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1492
# "+AES-256-CBC", "+SHA1",
1493
# "+COMP-NULL", "+CTYPE-OPENPGP",
1494
# "+DHE-DSS"))
2275
1495
# Use a fallback default, since this MUST be set.
2276
1496
priority = self.server.gnutls_priority
2277
1497
if priority is None:
2278
1498
priority = "NORMAL"
2279
gnutls.priority_set_direct(session._c_object,
2280
priority.encode("utf-8"),
2281
None)
2282
1499
(gnutls.library.functions
1500
.gnutls_priority_set_direct(session._c_object,
1501
priority, None))
1502
2283
1503
# Start communication using the Mandos protocol
2284
1504
# Get protocol number
2285
1505
line = self.request.makefile().readline()
2286
1506
logger.debug("Protocol version: %r", line)
2287
1507
try:
2288
1508
if int(line.strip().split()[0]) > 1:
2289
raise RuntimeError(line)
1509
raise RuntimeError
2290
1510
except (ValueError, IndexError, RuntimeError) as error:
2291
1511
logger.error("Unknown protocol version: %s", error)
2292
1512
return
2293
1513
2294
1514
# Start GnuTLS connection
2295
1515
try:
2296
1516
session.handshake()
2297
except gnutls.Error as error:
1517
except gnutls.errors.GNUTLSError as error:
2298
1518
logger.warning("Handshake failed: %s", error)
2299
1519
# Do not run session.bye() here: the session is not
2300
1520
# established. Just abandon the request.
2301
1521
return
2302
1522
logger.debug("Handshake succeeded")
2303
1523
2304
1524
approval_required = False
2305
1525
try:
2306
if gnutls.has_rawpk:
2307
fpr = b""
2308
try:
2309
key_id = self.key_id(
2310
self.peer_certificate(session))
2311
except (TypeError, gnutls.Error) as error:
2312
logger.warning("Bad certificate: %s", error)
2313
return
2314
logger.debug("Key ID: %s", key_id)
2315
2316
else:
2317
key_id = b""
2318
try:
2319
fpr = self.fingerprint(
2320
self.peer_certificate(session))
2321
except (TypeError, gnutls.Error) as error:
2322
logger.warning("Bad certificate: %s", error)
2323
return
2324
logger.debug("Fingerprint: %s", fpr)
2325
2326
try:
2327
client = ProxyClient(child_pipe, key_id, fpr,
1526
try:
1527
fpr = self.fingerprint(self.peer_certificate
1528
(session))
1529
except (TypeError,
1530
gnutls.errors.GNUTLSError) as error:
1531
logger.warning("Bad certificate: %s", error)
1532
return
1533
logger.debug("Fingerprint: %s", fpr)
1534
1535
try:
1536
client = ProxyClient(child_pipe, fpr,
2328
1537
self.client_address)
2329
1538
except KeyError:
2330
1539
return
2331
1540
1541
if self.server.use_dbus:
1542
# Emit D-Bus signal
1543
client.NewRequest(str(self.client_address))
1544
2332
1545
if client.approval_delay:
2333
1546
delay = client.approval_delay
2334
1547
client.approvals_pending += 1
2335
1548
approval_required = True
2336
1549
2337
1550
while True:
2338
1551
if not client.enabled:
2339
1552
logger.info("Client %s is disabled",
2340
client.name)
1553
client.name)
2341
1554
if self.server.use_dbus:
2342
1555
# Emit D-Bus signal
2343
1556
client.Rejected("Disabled")
2344
1557
return
2345
1558
2346
1559
if client.approved or not client.approval_delay:
2347
# We are approved or approval is disabled
1560
#We are approved or approval is disabled
2348
1561
break
2349
1562
elif client.approved is None:
2350
1563
logger.info("Client %s needs approval",
2352
1565
if self.server.use_dbus:
2353
1566
# Emit D-Bus signal
2354
1567
client.NeedApproval(
2355
client.approval_delay.total_seconds()
2356
* 1000, client.approved_by_default)
1568
client.approval_delay_milliseconds(),
1569
client.approved_by_default)
2357
1570
else:
2358
1571
logger.warning("Client %s was not approved",
2359
1572
client.name)
2361
1574
# Emit D-Bus signal
2362
1575
client.Rejected("Denied")
2363
1576
return
2364
2365
# wait until timeout or approved
1577
1578
#wait until timeout or approved
2366
1579
time = datetime.datetime.now()
2367
1580
client.changedstate.acquire()
2368
client.changedstate.wait(delay.total_seconds())
1581
(client.changedstate.wait
1582
(float(client.timedelta_to_milliseconds(delay)
1583
/ 1000)))
2369
1584
client.changedstate.release()
2370
1585
time2 = datetime.datetime.now()
2371
1586
if (time2 - time) >= delay:
2381
1596
break
2382
1597
else:
2383
1598
delay -= time2 - time
2384
2385
try:
2386
session.send(client.secret)
2387
except gnutls.Error as error:
2388
logger.warning("gnutls send failed",
2389
exc_info=error)
2390
return
2391
1599
1600
sent_size = 0
1601
while sent_size < len(client.secret):
1602
try:
1603
sent = session.send(client.secret[sent_size:])
1604
except gnutls.errors.GNUTLSError as error:
1605
logger.warning("gnutls send failed")
1606
return
1607
logger.debug("Sent: %d, remaining: %d",
1608
sent, len(client.secret)
1609
- (sent_size + sent))
1610
sent_size += sent
1611
2392
1612
logger.info("Sending secret to %s", client.name)
2393
1613
# bump the timeout using extended_timeout
2394
client.bump_timeout(client.extended_timeout)
1614
client.checked_ok(client.extended_timeout)
2395
1615
if self.server.use_dbus:
2396
1616
# Emit D-Bus signal
2397
1617
client.GotSecret()
2398
1618
2399
1619
finally:
2400
1620
if approval_required:
2401
1621
client.approvals_pending -= 1
2402
1622
try:
2403
1623
session.bye()
2404
except gnutls.Error as error:
2405
logger.warning("GnuTLS bye failed",
2406
exc_info=error)
2407
1624
except gnutls.errors.GNUTLSError as error:
1625
logger.warning("GnuTLS bye failed")
1626
2408
1627
@staticmethod
2409
1628
def peer_certificate(session):
2410
"Return the peer's certificate as a bytestring"
2411
try:
2412
cert_type = gnutls.certificate_type_get2(session._c_object,
2413
gnutls.CTYPE_PEERS)
2414
except AttributeError:
2415
cert_type = gnutls.certificate_type_get(session._c_object)
2416
if gnutls.has_rawpk:
2417
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2418
else:
2419
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2420
# If not a valid certificate type...
2421
if cert_type not in valid_cert_types:
2422
logger.info("Cert type %r not in %r", cert_type,
2423
valid_cert_types)
2424
# ...return invalid data
2425
return b""
1629
"Return the peer's OpenPGP certificate as a bytestring"
1630
# If not an OpenPGP certificate...
1631
if (gnutls.library.functions
1632
.gnutls_certificate_type_get(session._c_object)
1633
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1634
# ...do the normal thing
1635
return session.peer_certificate
2426
1636
list_size = ctypes.c_uint(1)
2427
cert_list = (gnutls.certificate_get_peers
1637
cert_list = (gnutls.library.functions
1638
.gnutls_certificate_get_peers
2428
1639
(session._c_object, ctypes.byref(list_size)))
2429
1640
if not bool(cert_list) and list_size.value != 0:
2430
raise gnutls.Error("error getting peer certificate")
1641
raise gnutls.errors.GNUTLSError("error getting peer"
1642
" certificate")
2431
1643
if list_size.value == 0:
2432
1644
return None
2433
1645
cert = cert_list[0]
2434
1646
return ctypes.string_at(cert.data, cert.size)
2435
2436
@staticmethod
2437
def key_id(certificate):
2438
"Convert a certificate bytestring to a hexdigit key ID"
2439
# New GnuTLS "datum" with the public key
2440
datum = gnutls.datum_t(
2441
ctypes.cast(ctypes.c_char_p(certificate),
2442
ctypes.POINTER(ctypes.c_ubyte)),
2443
ctypes.c_uint(len(certificate)))
2444
# XXX all these need to be created in the gnutls "module"
2445
# New empty GnuTLS certificate
2446
pubkey = gnutls.pubkey_t()
2447
gnutls.pubkey_init(ctypes.byref(pubkey))
2448
# Import the raw public key into the certificate
2449
gnutls.pubkey_import(pubkey,
2450
ctypes.byref(datum),
2451
gnutls.X509_FMT_DER)
2452
# New buffer for the key ID
2453
buf = ctypes.create_string_buffer(32)
2454
buf_len = ctypes.c_size_t(len(buf))
2455
# Get the key ID from the raw public key into the buffer
2456
gnutls.pubkey_get_key_id(pubkey,
2457
gnutls.KEYID_USE_SHA256,
2458
ctypes.cast(ctypes.byref(buf),
2459
ctypes.POINTER(ctypes.c_ubyte)),
2460
ctypes.byref(buf_len))
2461
# Deinit the certificate
2462
gnutls.pubkey_deinit(pubkey)
2463
2464
# Convert the buffer to a Python bytestring
2465
key_id = ctypes.string_at(buf, buf_len.value)
2466
# Convert the bytestring to hexadecimal notation
2467
hex_key_id = binascii.hexlify(key_id).upper()
2468
return hex_key_id
2469
1647
2470
1648
@staticmethod
2471
1649
def fingerprint(openpgp):
2472
1650
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2473
1651
# New GnuTLS "datum" with the OpenPGP public key
2474
datum = gnutls.datum_t(
2475
ctypes.cast(ctypes.c_char_p(openpgp),
2476
ctypes.POINTER(ctypes.c_ubyte)),
2477
ctypes.c_uint(len(openpgp)))
1652
datum = (gnutls.library.types
1653
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1654
ctypes.POINTER
1655
(ctypes.c_ubyte)),
1656
ctypes.c_uint(len(openpgp))))
2478
1657
# New empty GnuTLS certificate
2479
crt = gnutls.openpgp_crt_t()
2480
gnutls.openpgp_crt_init(ctypes.byref(crt))
1658
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1659
(gnutls.library.functions
1660
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2481
1661
# Import the OpenPGP public key into the certificate
2482
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2483
gnutls.OPENPGP_FMT_RAW)
1662
(gnutls.library.functions
1663
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1664
gnutls.library.constants
1665
.GNUTLS_OPENPGP_FMT_RAW))
2484
1666
# Verify the self signature in the key
2485
1667
crtverify = ctypes.c_uint()
2486
gnutls.openpgp_crt_verify_self(crt, 0,
2487
ctypes.byref(crtverify))
1668
(gnutls.library.functions
1669
.gnutls_openpgp_crt_verify_self(crt, 0,
1670
ctypes.byref(crtverify)))
2488
1671
if crtverify.value != 0:
2489
gnutls.openpgp_crt_deinit(crt)
2490
raise gnutls.CertificateSecurityError(code
2491
=crtverify.value)
1672
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1673
raise (gnutls.errors.CertificateSecurityError
1674
("Verify failed"))
2492
1675
# New buffer for the fingerprint
2493
1676
buf = ctypes.create_string_buffer(20)
2494
1677
buf_len = ctypes.c_size_t()
2495
1678
# Get the fingerprint from the certificate into the buffer
2496
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2497
ctypes.byref(buf_len))
1679
(gnutls.library.functions
1680
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1681
ctypes.byref(buf_len)))
2498
1682
# Deinit the certificate
2499
gnutls.openpgp_crt_deinit(crt)
1683
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2500
1684
# Convert the buffer to a Python bytestring
2501
1685
fpr = ctypes.string_at(buf, buf_len.value)
2502
1686
# Convert the bytestring to hexadecimal notation
2504
1688
return hex_fpr
2505
1689
2506
1690
2507
class MultiprocessingMixIn:
1691
class MultiprocessingMixIn(object):
2508
1692
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2509
2510
1693
def sub_process_main(self, request, address):
2511
1694
try:
2512
1695
self.finish_request(request, address)
2513
1696
except Exception:
2514
1697
self.handle_error(request, address)
2515
1698
self.close_request(request)
2516
1699
2517
1700
def process_request(self, request, address):
2518
1701
"""Start a new process to process the request."""
2519
proc = multiprocessing.Process(target=self.sub_process_main,
2520
args=(request, address))
1702
proc = multiprocessing.Process(target = self.sub_process_main,
1703
args = (request,
1704
address))
2521
1705
proc.start()
2522
1706
return proc
2523
1707
2524
1708
2525
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1709
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2526
1710
""" adds a pipe to the MixIn """
2527
2528
1711
def process_request(self, request, client_address):
2529
1712
"""Overrides and wraps the original process_request().
2530
1713
2531
1714
This function creates a new pipe in self.pipe
2532
1715
"""
2533
1716
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2534
1717
2535
1718
proc = MultiprocessingMixIn.process_request(self, request,
2536
1719
client_address)
2537
1720
self.child_pipe.close()
2538
1721
self.add_pipe(parent_pipe, proc)
2539
1722
2540
1723
def add_pipe(self, parent_pipe, proc):
2541
1724
"""Dummy function; override as necessary"""
2542
raise NotImplementedError()
1725
raise NotImplementedError
2543
1726
2544
1727
2545
1728
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2546
socketserver.TCPServer):
1729
socketserver.TCPServer, object):
2547
1730
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2548
1731
2549
1732
Attributes:
2550
1733
enabled: Boolean; whether this server is activated yet
2551
1734
interface: None or a network interface name (string)
2552
1735
use_ipv6: Boolean; to use IPv6 or not
2553
1736
"""
2554
2555
1737
def __init__(self, server_address, RequestHandlerClass,
2556
interface=None,
2557
use_ipv6=True,
2558
socketfd=None):
2559
"""If socketfd is set, use that file descriptor instead of
2560
creating a new one with socket.socket().
2561
"""
1738
interface=None, use_ipv6=True):
2562
1739
self.interface = interface
2563
1740
if use_ipv6:
2564
1741
self.address_family = socket.AF_INET6
2565
if socketfd is not None:
2566
# Save the file descriptor
2567
self.socketfd = socketfd
2568
# Save the original socket.socket() function
2569
self.socket_socket = socket.socket
2570
2571
# To implement --socket, we monkey patch socket.socket.
2572
#
2573
# (When socketserver.TCPServer is a new-style class, we
2574
# could make self.socket into a property instead of monkey
2575
# patching socket.socket.)
2576
#
2577
# Create a one-time-only replacement for socket.socket()
2578
@functools.wraps(socket.socket)
2579
def socket_wrapper(*args, **kwargs):
2580
# Restore original function so subsequent calls are
2581
# not affected.
2582
socket.socket = self.socket_socket
2583
del self.socket_socket
2584
# This time only, return a new socket object from the
2585
# saved file descriptor.
2586
return socket.fromfd(self.socketfd, *args, **kwargs)
2587
# Replace socket.socket() function with wrapper
2588
socket.socket = socket_wrapper
2589
# The socketserver.TCPServer.__init__ will call
2590
# socket.socket(), which might be our replacement,
2591
# socket_wrapper(), if socketfd was set.
2592
1742
socketserver.TCPServer.__init__(self, server_address,
2593
1743
RequestHandlerClass)
2594
2595
1744
def server_bind(self):
2596
1745
"""This overrides the normal server_bind() function
2597
1746
to bind to an interface if one was specified, and also NOT to
2598
1747
bind to an address or port if they were not specified."""
2599
global SO_BINDTODEVICE
2600
1748
if self.interface is not None:
2601
1749
if SO_BINDTODEVICE is None:
2602
# Fall back to a hard-coded value which seems to be
2603
# common enough.
2604
logger.warning("SO_BINDTODEVICE not found, trying 25")
2605
SO_BINDTODEVICE = 25
2606
try:
2607
self.socket.setsockopt(
2608
socket.SOL_SOCKET, SO_BINDTODEVICE,
2609
(self.interface + "\0").encode("utf-8"))
2610
except socket.error as error:
2611
if error.errno == errno.EPERM:
2612
logger.error("No permission to bind to"
2613
" interface %s", self.interface)
2614
elif error.errno == errno.ENOPROTOOPT:
2615
logger.error("SO_BINDTODEVICE not available;"
2616
" cannot bind to interface %s",
2617
self.interface)
2618
elif error.errno == errno.ENODEV:
2619
logger.error("Interface %s does not exist,"
2620
" cannot bind", self.interface)
2621
else:
2622
raise
1750
logger.error("SO_BINDTODEVICE does not exist;"
1751
" cannot bind to interface %s",
1752
self.interface)
1753
else:
1754
try:
1755
self.socket.setsockopt(socket.SOL_SOCKET,
1756
SO_BINDTODEVICE,
1757
str(self.interface
1758
+ '\0'))
1759
except socket.error as error:
1760
if error[0] == errno.EPERM:
1761
logger.error("No permission to"
1762
" bind to interface %s",
1763
self.interface)
1764
elif error[0] == errno.ENOPROTOOPT:
1765
logger.error("SO_BINDTODEVICE not available;"
1766
" cannot bind to interface %s",
1767
self.interface)
1768
else:
1769
raise
2623
1770
# Only bind(2) the socket if we really need to.
2624
1771
if self.server_address[0] or self.server_address[1]:
2625
if self.server_address[1]:
2626
self.allow_reuse_address = True
2627
1772
if not self.server_address[0]:
2628
1773
if self.address_family == socket.AF_INET6:
2629
any_address = "::" # in6addr_any
1774
any_address = "::" # in6addr_any
2630
1775
else:
2631
any_address = "0.0.0.0" # INADDR_ANY
1776
any_address = socket.INADDR_ANY
2632
1777
self.server_address = (any_address,
2633
1778
self.server_address[1])
2634
1779
elif not self.server_address[1]:
2635
self.server_address = (self.server_address[0], 0)
1780
self.server_address = (self.server_address[0],
1781
0)
2636
1782
# if self.interface:
2637
1783
# self.server_address = (self.server_address[0],
2638
1784
# 0, # port
2644
1790
2645
1791
class MandosServer(IPv6_TCPServer):
2646
1792
"""Mandos server.
2647
1793
2648
1794
Attributes:
2649
1795
clients: set of Client objects
2650
1796
gnutls_priority GnuTLS priority string
2651
1797
use_dbus: Boolean; to emit D-Bus signals or not
2652
2653
Assumes a GLib.MainLoop event loop.
1798
1799
Assumes a gobject.MainLoop event loop.
2654
1800
"""
2655
2656
1801
def __init__(self, server_address, RequestHandlerClass,
2657
interface=None,
2658
use_ipv6=True,
2659
clients=None,
2660
gnutls_priority=None,
2661
use_dbus=True,
2662
socketfd=None):
1802
interface=None, use_ipv6=True, clients=None,
1803
gnutls_priority=None, use_dbus=True):
2663
1804
self.enabled = False
2664
1805
self.clients = clients
2665
1806
if self.clients is None:
2668
1809
self.gnutls_priority = gnutls_priority
2669
1810
IPv6_TCPServer.__init__(self, server_address,
2670
1811
RequestHandlerClass,
2671
interface=interface,
2672
use_ipv6=use_ipv6,
2673
socketfd=socketfd)
2674
1812
interface = interface,
1813
use_ipv6 = use_ipv6)
2675
1814
def server_activate(self):
2676
1815
if self.enabled:
2677
1816
return socketserver.TCPServer.server_activate(self)
2678
1817
2679
1818
def enable(self):
2680
1819
self.enabled = True
2681
1820
2682
1821
def add_pipe(self, parent_pipe, proc):
2683
1822
# Call "handle_ipc" for both data and EOF events
2684
GLib.io_add_watch(
2685
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2686
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2687
functools.partial(self.handle_ipc,
2688
parent_pipe=parent_pipe,
2689
proc=proc))
2690
2691
def handle_ipc(self, source, condition,
2692
parent_pipe=None,
2693
proc=None,
2694
client_object=None):
1823
gobject.io_add_watch(parent_pipe.fileno(),
1824
gobject.IO_IN | gobject.IO_HUP,
1825
functools.partial(self.handle_ipc,
1826
parent_pipe =
1827
parent_pipe,
1828
proc = proc))
1829
1830
def handle_ipc(self, source, condition, parent_pipe=None,
1831
proc = None, client_object=None):
1832
condition_names = {
1833
gobject.IO_IN: "IN", # There is data to read.
1834
gobject.IO_OUT: "OUT", # Data can be written (without
1835
# blocking).
1836
gobject.IO_PRI: "PRI", # There is urgent data to read.
1837
gobject.IO_ERR: "ERR", # Error condition.
1838
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1839
# broken, usually for pipes and
1840
# sockets).
1841
}
1842
conditions_string = ' | '.join(name
1843
for cond, name in
1844
condition_names.iteritems()
1845
if cond & condition)
2695
1846
# error, or the other end of multiprocessing.Pipe has closed
2696
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1847
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2697
1848
# Wait for other process to exit
2698
1849
proc.join()
2699
1850
return False
2700
1851
2701
1852
# Read a request from the child
2702
1853
request = parent_pipe.recv()
2703
1854
command = request[0]
2704
1855
2705
1856
if command == 'init':
2706
key_id = request[1].decode("ascii")
2707
fpr = request[2].decode("ascii")
2708
address = request[3]
2709
2710
for c in self.clients.values():
2711
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2712
continue
2713
if key_id and c.key_id == key_id:
2714
client = c
2715
break
2716
if fpr and c.fingerprint == fpr:
1857
fpr = request[1]
1858
address = request[2]
1859
1860
for c in self.clients.itervalues():
1861
if c.fingerprint == fpr:
2717
1862
client = c
2718
1863
break
2719
1864
else:
2720
logger.info("Client not found for key ID: %s, address"
2721
": %s", key_id or fpr, address)
1865
logger.info("Client not found for fingerprint: %s, ad"
1866
"dress: %s", fpr, address)
2722
1867
if self.use_dbus:
2723
1868
# Emit D-Bus signal
2724
mandos_dbus_service.ClientNotFound(key_id or fpr,
1869
mandos_dbus_service.ClientNotFound(fpr,
2725
1870
address[0])
2726
1871
parent_pipe.send(False)
2727
1872
return False
2728
2729
GLib.io_add_watch(
2730
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2731
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2732
functools.partial(self.handle_ipc,
2733
parent_pipe=parent_pipe,
2734
proc=proc,
2735
client_object=client))
1873
1874
gobject.io_add_watch(parent_pipe.fileno(),
1875
gobject.IO_IN | gobject.IO_HUP,
1876
functools.partial(self.handle_ipc,
1877
parent_pipe =
1878
parent_pipe,
1879
proc = proc,
1880
client_object =
1881
client))
2736
1882
parent_pipe.send(True)
2737
1883
# remove the old hook in favor of the new above hook on
2738
1884
# same fileno
2741
1887
funcname = request[1]
2742
1888
args = request[2]
2743
1889
kwargs = request[3]
2744
1890
2745
1891
parent_pipe.send(('data', getattr(client_object,
2746
1892
funcname)(*args,
2747
**kwargs)))
2748
1893
**kwargs)))
1894
2749
1895
if command == 'getattr':
2750
1896
attrname = request[1]
2751
if isinstance(client_object.__getattribute__(attrname),
2752
collections.Callable):
2753
parent_pipe.send(('function', ))
1897
if callable(client_object.__getattribute__(attrname)):
1898
parent_pipe.send(('function',))
2754
1899
else:
2755
parent_pipe.send((
2756
'data', client_object.__getattribute__(attrname)))
2757
1900
parent_pipe.send(('data', client_object
1901
.__getattribute__(attrname)))
1902
2758
1903
if command == 'setattr':
2759
1904
attrname = request[1]
2760
1905
value = request[2]
2761
1906
setattr(client_object, attrname, value)
2762
1907
2763
1908
return True
2764
1909
2765
1910
2766
def rfc3339_duration_to_delta(duration):
2767
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2768
2769
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2770
True
2771
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2772
True
2773
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2774
True
2775
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2776
True
2777
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2778
True
2779
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2780
True
2781
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2782
True
2783
"""
2784
2785
# Parsing an RFC 3339 duration with regular expressions is not
2786
# possible - there would have to be multiple places for the same
2787
# values, like seconds. The current code, while more esoteric, is
2788
# cleaner without depending on a parsing library. If Python had a
2789
# built-in library for parsing we would use it, but we'd like to
2790
# avoid excessive use of external libraries.
2791
2792
# New type for defining tokens, syntax, and semantics all-in-one
2793
Token = collections.namedtuple("Token", (
2794
"regexp", # To match token; if "value" is not None, must have
2795
# a "group" containing digits
2796
"value", # datetime.timedelta or None
2797
"followers")) # Tokens valid after this token
2798
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2799
# the "duration" ABNF definition in RFC 3339, Appendix A.
2800
token_end = Token(re.compile(r"$"), None, frozenset())
2801
token_second = Token(re.compile(r"(\d+)S"),
2802
datetime.timedelta(seconds=1),
2803
frozenset((token_end, )))
2804
token_minute = Token(re.compile(r"(\d+)M"),
2805
datetime.timedelta(minutes=1),
2806
frozenset((token_second, token_end)))
2807
token_hour = Token(re.compile(r"(\d+)H"),
2808
datetime.timedelta(hours=1),
2809
frozenset((token_minute, token_end)))
2810
token_time = Token(re.compile(r"T"),
2811
None,
2812
frozenset((token_hour, token_minute,
2813
token_second)))
2814
token_day = Token(re.compile(r"(\d+)D"),
2815
datetime.timedelta(days=1),
2816
frozenset((token_time, token_end)))
2817
token_month = Token(re.compile(r"(\d+)M"),
2818
datetime.timedelta(weeks=4),
2819
frozenset((token_day, token_end)))
2820
token_year = Token(re.compile(r"(\d+)Y"),
2821
datetime.timedelta(weeks=52),
2822
frozenset((token_month, token_end)))
2823
token_week = Token(re.compile(r"(\d+)W"),
2824
datetime.timedelta(weeks=1),
2825
frozenset((token_end, )))
2826
token_duration = Token(re.compile(r"P"), None,
2827
frozenset((token_year, token_month,
2828
token_day, token_time,
2829
token_week)))
2830
# Define starting values:
2831
# Value so far
2832
value = datetime.timedelta()
2833
found_token = None
2834
# Following valid tokens
2835
followers = frozenset((token_duration, ))
2836
# String left to parse
2837
s = duration
2838
# Loop until end token is found
2839
while found_token is not token_end:
2840
# Search for any currently valid tokens
2841
for token in followers:
2842
match = token.regexp.match(s)
2843
if match is not None:
2844
# Token found
2845
if token.value is not None:
2846
# Value found, parse digits
2847
factor = int(match.group(1), 10)
2848
# Add to value so far
2849
value += factor * token.value
2850
# Strip token from string
2851
s = token.regexp.sub("", s, 1)
2852
# Go to found token
2853
found_token = token
2854
# Set valid next tokens
2855
followers = found_token.followers
2856
break
2857
else:
2858
# No currently valid tokens were found
2859
raise ValueError("Invalid RFC 3339 duration: {!r}"
2860
.format(duration))
2861
# End token found
2862
return value
2863
2864
2865
1911
def string_to_delta(interval):
2866
1912
"""Parse a string and return a datetime.timedelta
2867
2868
>>> string_to_delta('7d') == datetime.timedelta(7)
2869
True
2870
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2871
True
2872
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2873
True
2874
>>> string_to_delta('24h') == datetime.timedelta(1)
2875
True
2876
>>> string_to_delta('1w') == datetime.timedelta(7)
2877
True
2878
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2879
True
1913
1914
>>> string_to_delta('7d')
1915
datetime.timedelta(7)
1916
>>> string_to_delta('60s')
1917
datetime.timedelta(0, 60)
1918
>>> string_to_delta('60m')
1919
datetime.timedelta(0, 3600)
1920
>>> string_to_delta('24h')
1921
datetime.timedelta(1)
1922
>>> string_to_delta('1w')
1923
datetime.timedelta(7)
1924
>>> string_to_delta('5m 30s')
1925
datetime.timedelta(0, 330)
2880
1926
"""
2881
2882
try:
2883
return rfc3339_duration_to_delta(interval)
2884
except ValueError:
2885
pass
2886
2887
1927
timevalue = datetime.timedelta(0)
2888
1928
for s in interval.split():
2889
1929
try:
2890
suffix = s[-1]
1930
suffix = unicode(s[-1])
2891
1931
value = int(s[:-1])
2892
1932
if suffix == "d":
2893
1933
delta = datetime.timedelta(value)
2900
1940
elif suffix == "w":
2901
1941
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2902
1942
else:
2903
raise ValueError("Unknown suffix {!r}".format(suffix))
2904
except IndexError as e:
1943
raise ValueError("Unknown suffix %r" % suffix)
1944
except (ValueError, IndexError) as e:
2905
1945
raise ValueError(*(e.args))
2906
1946
timevalue += delta
2907
1947
return timevalue
2908
1948
2909
1949
2910
def daemon(nochdir=False, noclose=False):
1950
def daemon(nochdir = False, noclose = False):
2911
1951
"""See daemon(3). Standard BSD Unix function.
2912
1952
2913
1953
This should really exist as os.daemon, but it doesn't (yet)."""
2914
1954
if os.fork():
2915
1955
sys.exit()
2920
1960
sys.exit()
2921
1961
if not noclose:
2922
1962
# Close all standard open file descriptors
2923
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1963
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2924
1964
if not stat.S_ISCHR(os.fstat(null).st_mode):
2925
1965
raise OSError(errno.ENODEV,
2926
"{} not a character device"
2927
.format(os.devnull))
1966
"%s not a character device"
1967
% os.path.devnull)
2928
1968
os.dup2(null, sys.stdin.fileno())
2929
1969
os.dup2(null, sys.stdout.fileno())
2930
1970
os.dup2(null, sys.stderr.fileno())
2933
1973
2934
1974
2935
1975
def main():
2936
1976
2937
1977
##################################################################
2938
1978
# Parsing of options, both command line and config file
2939
1979
2940
1980
parser = argparse.ArgumentParser()
2941
1981
parser.add_argument("-v", "--version", action="version",
2942
version="%(prog)s {}".format(version),
1982
version = "%%(prog)s %s" % version,
2943
1983
help="show version number and exit")
2944
1984
parser.add_argument("-i", "--interface", metavar="IF",
2945
1985
help="Bind to interface IF")
2951
1991
help="Run self-test")
2952
1992
parser.add_argument("--debug", action="store_true",
2953
1993
help="Debug mode; run in foreground and log"
2954
" to terminal", default=None)
1994
" to terminal")
2955
1995
parser.add_argument("--debuglevel", metavar="LEVEL",
2956
1996
help="Debug level for stdout output")
2957
1997
parser.add_argument("--priority", help="GnuTLS"
2964
2004
" files")
2965
2005
parser.add_argument("--no-dbus", action="store_false",
2966
2006
dest="use_dbus", help="Do not provide D-Bus"
2967
" system bus interface", default=None)
2007
" system bus interface")
2968
2008
parser.add_argument("--no-ipv6", action="store_false",
2969
dest="use_ipv6", help="Do not use IPv6",
2970
default=None)
2009
dest="use_ipv6", help="Do not use IPv6")
2971
2010
parser.add_argument("--no-restore", action="store_false",
2972
2011
dest="restore", help="Do not restore stored"
2973
" state", default=None)
2974
parser.add_argument("--socket", type=int,
2975
help="Specify a file descriptor to a network"
2976
" socket to use instead of creating one")
2012
" state")
2977
2013
parser.add_argument("--statedir", metavar="DIR",
2978
2014
help="Directory to save/restore state in")
2979
parser.add_argument("--foreground", action="store_true",
2980
help="Run in foreground", default=None)
2981
parser.add_argument("--no-zeroconf", action="store_false",
2982
dest="zeroconf", help="Do not use Zeroconf",
2983
default=None)
2984
2015
2985
2016
options = parser.parse_args()
2986
2017
2018
if options.check:
2019
import doctest
2020
doctest.testmod()
2021
sys.exit()
2022
2987
2023
# Default values for config file for server-global settings
2988
if gnutls.has_rawpk:
2989
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2990
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2991
else:
2992
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2993
":+SIGN-DSA-SHA256")
2994
server_defaults = {"interface": "",
2995
"address": "",
2996
"port": "",
2997
"debug": "False",
2998
"priority": priority,
2999
"servicename": "Mandos",
3000
"use_dbus": "True",
3001
"use_ipv6": "True",
3002
"debuglevel": "",
3003
"restore": "True",
3004
"socket": "",
3005
"statedir": "/var/lib/mandos",
3006
"foreground": "False",
3007
"zeroconf": "True",
3008
}
3009
del priority
3010
2024
server_defaults = { "interface": "",
2025
"address": "",
2026
"port": "",
2027
"debug": "False",
2028
"priority":
2029
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2030
"servicename": "Mandos",
2031
"use_dbus": "True",
2032
"use_ipv6": "True",
2033
"debuglevel": "",
2034
"restore": "True",
2035
"statedir": "/var/lib/mandos"
2036
}
2037
3011
2038
# Parse config file for server-global settings
3012
server_config = configparser.ConfigParser(server_defaults)
2039
server_config = configparser.SafeConfigParser(server_defaults)
3013
2040
del server_defaults
3014
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3015
# Convert the ConfigParser object to a dict
2041
server_config.read(os.path.join(options.configdir,
2042
"mandos.conf"))
2043
# Convert the SafeConfigParser object to a dict
3016
2044
server_settings = server_config.defaults()
3017
2045
# Use the appropriate methods on the non-string config options
3018
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3019
"foreground", "zeroconf"):
2046
for option in ("debug", "use_dbus", "use_ipv6"):
3020
2047
server_settings[option] = server_config.getboolean("DEFAULT",
3021
2048
option)
3022
2049
if server_settings["port"]:
3023
2050
server_settings["port"] = server_config.getint("DEFAULT",
3024
2051
"port")
3025
if server_settings["socket"]:
3026
server_settings["socket"] = server_config.getint("DEFAULT",
3027
"socket")
3028
# Later, stdin will, and stdout and stderr might, be dup'ed
3029
# over with an opened os.devnull. But we don't want this to
3030
# happen with a supplied network socket.
3031
if 0 <= server_settings["socket"] <= 2:
3032
server_settings["socket"] = os.dup(server_settings
3033
["socket"])
3034
2052
del server_config
3035
2053
3036
2054
# Override the settings from the config file with command line
3037
2055
# options, if set.
3038
2056
for option in ("interface", "address", "port", "debug",
3039
"priority", "servicename", "configdir", "use_dbus",
3040
"use_ipv6", "debuglevel", "restore", "statedir",
3041
"socket", "foreground", "zeroconf"):
2057
"priority", "servicename", "configdir",
2058
"use_dbus", "use_ipv6", "debuglevel", "restore",
2059
"statedir"):
3042
2060
value = getattr(options, option)
3043
2061
if value is not None:
3044
2062
server_settings[option] = value
3045
2063
del options
3046
2064
# Force all strings to be unicode
3047
2065
for option in server_settings.keys():
3048
if isinstance(server_settings[option], bytes):
3049
server_settings[option] = (server_settings[option]
3050
.decode("utf-8"))
3051
# Force all boolean options to be boolean
3052
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3053
"foreground", "zeroconf"):
3054
server_settings[option] = bool(server_settings[option])
3055
# Debug implies foreground
3056
if server_settings["debug"]:
3057
server_settings["foreground"] = True
2066
if type(server_settings[option]) is str:
2067
server_settings[option] = unicode(server_settings[option])
3058
2068
# Now we have our good server settings in "server_settings"
3059
2069
3060
2070
##################################################################
3061
3062
if (not server_settings["zeroconf"]
3063
and not (server_settings["port"]
3064
or server_settings["socket"] != "")):
3065
parser.error("Needs port or socket to work without Zeroconf")
3066
2071
3067
2072
# For convenience
3068
2073
debug = server_settings["debug"]
3069
2074
debuglevel = server_settings["debuglevel"]
3071
2076
use_ipv6 = server_settings["use_ipv6"]
3072
2077
stored_state_path = os.path.join(server_settings["statedir"],
3073
2078
stored_state_file)
3074
foreground = server_settings["foreground"]
3075
zeroconf = server_settings["zeroconf"]
3076
2079
3077
2080
if debug:
3078
initlogger(debug, logging.DEBUG)
2081
initlogger(logging.DEBUG)
3079
2082
else:
3080
2083
if not debuglevel:
3081
initlogger(debug)
2084
initlogger()
3082
2085
else:
3083
2086
level = getattr(logging, debuglevel.upper())
3084
initlogger(debug, level)
3085
2087
initlogger(level)
2088
3086
2089
if server_settings["servicename"] != "Mandos":
3087
syslogger.setFormatter(
3088
logging.Formatter('Mandos ({}) [%(process)d]:'
3089
' %(levelname)s: %(message)s'.format(
3090
server_settings["servicename"])))
3091
2090
syslogger.setFormatter(logging.Formatter
2091
('Mandos (%s) [%%(process)d]:'
2092
' %%(levelname)s: %%(message)s'
2093
% server_settings["servicename"]))
2094
3092
2095
# Parse config file with clients
3093
client_config = configparser.ConfigParser(Client.client_defaults)
2096
client_config = configparser.SafeConfigParser(Client.client_defaults)
3094
2097
client_config.read(os.path.join(server_settings["configdir"],
3095
2098
"clients.conf"))
3096
2099
3097
2100
global mandos_dbus_service
3098
2101
mandos_dbus_service = None
3099
3100
socketfd = None
3101
if server_settings["socket"] != "":
3102
socketfd = server_settings["socket"]
3103
tcp_server = MandosServer(
3104
(server_settings["address"], server_settings["port"]),
3105
ClientHandler,
3106
interface=(server_settings["interface"] or None),
3107
use_ipv6=use_ipv6,
3108
gnutls_priority=server_settings["priority"],
3109
use_dbus=use_dbus,
3110
socketfd=socketfd)
3111
if not foreground:
3112
pidfilename = "/run/mandos.pid"
3113
if not os.path.isdir("/run/."):
3114
pidfilename = "/var/run/mandos.pid"
3115
pidfile = None
3116
try:
3117
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3118
except IOError as e:
3119
logger.error("Could not open file %r", pidfilename,
3120
exc_info=e)
3121
3122
for name, group in (("_mandos", "_mandos"),
3123
("mandos", "mandos"),
3124
("nobody", "nogroup")):
3125
try:
3126
uid = pwd.getpwnam(name).pw_uid
3127
gid = pwd.getpwnam(group).pw_gid
3128
break
2102
2103
tcp_server = MandosServer((server_settings["address"],
2104
server_settings["port"]),
2105
ClientHandler,
2106
interface=(server_settings["interface"]
2107
or None),
2108
use_ipv6=use_ipv6,
2109
gnutls_priority=
2110
server_settings["priority"],
2111
use_dbus=use_dbus)
2112
if not debug:
2113
pidfilename = "/var/run/mandos.pid"
2114
try:
2115
pidfile = open(pidfilename, "w")
2116
except IOError:
2117
logger.error("Could not open file %r", pidfilename)
2118
2119
try:
2120
uid = pwd.getpwnam("_mandos").pw_uid
2121
gid = pwd.getpwnam("_mandos").pw_gid
2122
except KeyError:
2123
try:
2124
uid = pwd.getpwnam("mandos").pw_uid
2125
gid = pwd.getpwnam("mandos").pw_gid
3129
2126
except KeyError:
3130
continue
3131
else:
3132
uid = 65534
3133
gid = 65534
2127
try:
2128
uid = pwd.getpwnam("nobody").pw_uid
2129
gid = pwd.getpwnam("nobody").pw_gid
2130
except KeyError:
2131
uid = 65534
2132
gid = 65534
3134
2133
try:
3135
2134
os.setgid(gid)
3136
2135
os.setuid(uid)
3137
if debug:
3138
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3139
gid))
3140
2136
except OSError as error:
3141
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3142
.format(uid, gid, os.strerror(error.errno)))
3143
if error.errno != errno.EPERM:
3144
raise
3145
2137
if error[0] != errno.EPERM:
2138
raise error
2139
3146
2140
if debug:
3147
2141
# Enable all possible GnuTLS debugging
3148
2142
3149
2143
# "Use a log level over 10 to enable all debugging options."
3150
2144
# - GnuTLS manual
3151
gnutls.global_set_log_level(11)
3152
3153
@gnutls.log_func
2145
gnutls.library.functions.gnutls_global_set_log_level(11)
2146
2147
@gnutls.library.types.gnutls_log_func
3154
2148
def debug_gnutls(level, string):
3155
2149
logger.debug("GnuTLS: %s", string[:-1])
3156
3157
gnutls.global_set_log_function(debug_gnutls)
3158
2150
2151
(gnutls.library.functions
2152
.gnutls_global_set_log_function(debug_gnutls))
2153
3159
2154
# Redirect stdin so all checkers get /dev/null
3160
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2155
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3161
2156
os.dup2(null, sys.stdin.fileno())
3162
2157
if null > 2:
3163
2158
os.close(null)
3164
2159
else:
2160
# No console logging
2161
logger.removeHandler(console)
2162
3165
2163
# Need to fork before connecting to D-Bus
3166
if not foreground:
2164
if not debug:
3167
2165
# Close all input and output, do double fork, etc.
3168
2166
daemon()
3169
3170
if gi.version_info < (3, 10, 2):
3171
# multiprocessing will use threads, so before we use GLib we
3172
# need to inform GLib that threads will be used.
3173
GLib.threads_init()
3174
2167
3175
2168
global main_loop
3176
2169
# From the Avahi example code
3177
DBusGMainLoop(set_as_default=True)
3178
main_loop = GLib.MainLoop()
2170
DBusGMainLoop(set_as_default=True )
2171
main_loop = gobject.MainLoop()
3179
2172
bus = dbus.SystemBus()
3180
2173
# End of Avahi example code
3181
2174
if use_dbus:
3182
2175
try:
3183
2176
bus_name = dbus.service.BusName("se.recompile.Mandos",
3184
bus,
3185
do_not_queue=True)
3186
old_bus_name = dbus.service.BusName(
3187
"se.bsnet.fukt.Mandos", bus,
3188
do_not_queue=True)
3189
except dbus.exceptions.DBusException as e:
3190
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")
3191
2183
use_dbus = False
3192
2184
server_settings["use_dbus"] = False
3193
2185
tcp_server.use_dbus = False
3194
if zeroconf:
3195
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3196
service = AvahiServiceToSyslog(
3197
name=server_settings["servicename"],
3198
servicetype="_mandos._tcp",
3199
protocol=protocol,
3200
bus=bus)
3201
if server_settings["interface"]:
3202
service.interface = if_nametoindex(
3203
server_settings["interface"].encode("utf-8"))
3204
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
3205
2195
global multiprocessing_manager
3206
2196
multiprocessing_manager = multiprocessing.Manager()
3207
2197
3208
2198
client_class = Client
3209
2199
if use_dbus:
3210
client_class = functools.partial(ClientDBus, bus=bus)
3211
2200
client_class = functools.partial(ClientDBusTransitional,
2201
bus = bus)
2202
3212
2203
client_settings = Client.config_parser(client_config)
3213
2204
old_client_settings = {}
3214
2205
clients_data = {}
3215
3216
# This is used to redirect stdout and stderr for checker processes
3217
global wnull
3218
wnull = open(os.devnull, "w") # A writable /dev/null
3219
# Only used if server is running in foreground but not in debug
3220
# mode
3221
if debug or not foreground:
3222
wnull.close()
3223
2206
3224
2207
# Get client data and settings from last running state.
3225
2208
if server_settings["restore"]:
3226
2209
try:
3227
2210
with open(stored_state_path, "rb") as stored_state:
3228
if sys.version_info.major == 2:
3229
clients_data, old_client_settings = pickle.load(
3230
stored_state)
3231
else:
3232
bytes_clients_data, bytes_old_client_settings = (
3233
pickle.load(stored_state, encoding="bytes"))
3234
# Fix bytes to strings
3235
# clients_data
3236
# .keys()
3237
clients_data = {(key.decode("utf-8")
3238
if isinstance(key, bytes)
3239
else key): value
3240
for key, value in
3241
bytes_clients_data.items()}
3242
del bytes_clients_data
3243
for key in clients_data:
3244
value = {(k.decode("utf-8")
3245
if isinstance(k, bytes) else k): v
3246
for k, v in
3247
clients_data[key].items()}
3248
clients_data[key] = value
3249
# .client_structure
3250
value["client_structure"] = [
3251
(s.decode("utf-8")
3252
if isinstance(s, bytes)
3253
else s) for s in
3254
value["client_structure"]]
3255
# .name, .host, and .checker_command
3256
for k in ("name", "host", "checker_command"):
3257
if isinstance(value[k], bytes):
3258
value[k] = value[k].decode("utf-8")
3259
if "key_id" not in value:
3260
value["key_id"] = ""
3261
elif "fingerprint" not in value:
3262
value["fingerprint"] = ""
3263
# old_client_settings
3264
# .keys()
3265
old_client_settings = {
3266
(key.decode("utf-8")
3267
if isinstance(key, bytes)
3268
else key): value
3269
for key, value in
3270
bytes_old_client_settings.items()}
3271
del bytes_old_client_settings
3272
# .host and .checker_command
3273
for value in old_client_settings.values():
3274
for attribute in ("host", "checker_command"):
3275
if isinstance(value[attribute], bytes):
3276
value[attribute] = (value[attribute]
3277
.decode("utf-8"))
2211
clients_data, old_client_settings = (pickle.load
2212
(stored_state))
3278
2213
os.remove(stored_state_path)
3279
2214
except IOError as e:
3280
if e.errno == errno.ENOENT:
3281
logger.warning("Could not load persistent state:"
3282
" {}".format(os.strerror(e.errno)))
3283
else:
3284
logger.critical("Could not load persistent state:",
3285
exc_info=e)
2215
logger.warning("Could not load persistent state: {0}"
2216
.format(e))
2217
if e.errno != errno.ENOENT:
3286
2218
raise
3287
except EOFError as e:
3288
logger.warning("Could not load persistent state: "
3289
"EOFError:",
3290
exc_info=e)
3291
2219
3292
2220
with PGPEngine() as pgp:
3293
for client_name, client in clients_data.items():
3294
# Skip removed clients
3295
if client_name not in client_settings:
3296
continue
3297
2221
for client_name, client in clients_data.iteritems():
3298
2222
# Decide which value to use after restoring saved state.
3299
2223
# We have three different values: Old config file,
3300
2224
# new config file, and saved state.
3305
2229
# For each value in new config, check if it
3306
2230
# differs from the old config value (Except for
3307
2231
# the "secret" attribute)
3308
if (name != "secret"
3309
and (value !=
3310
old_client_settings[client_name][name])):
2232
if (name != "secret" and
2233
value != old_client_settings[client_name]
2234
[name]):
3311
2235
client[name] = value
3312
2236
except KeyError:
3313
2237
pass
3314
2238
3315
2239
# Clients who has passed its expire date can still be
3316
# enabled if its last checker was successful. A Client
3317
# whose checker succeeded before we stored its state is
3318
# assumed to have successfully run all checkers during
3319
# downtime.
2240
# enabled if its last checker was successful. Clients
2241
# whose checker failed before we stored its state is
2242
# assumed to have failed all checkers during downtime.
3320
2243
if client["enabled"]:
3321
2244
if datetime.datetime.utcnow() >= client["expires"]:
3322
2245
if not client["last_checked_ok"]:
3323
2246
logger.warning(
3324
"disabling client {} - Client never "
3325
"performed a successful checker".format(
3326
client_name))
2247
"disabling client {0} - Client never "
2248
"performed a successfull checker"
2249
.format(client["name"]))
3327
2250
client["enabled"] = False
3328
2251
elif client["last_checker_status"] != 0:
3329
2252
logger.warning(
3330
"disabling client {} - Client last"
3331
" checker failed with error code"
3332
" {}".format(
3333
client_name,
3334
client["last_checker_status"]))
2253
"disabling client {0} - Client "
2254
"last checker failed with error code {1}"
2255
.format(client["name"],
2256
client["last_checker_status"]))
3335
2257
client["enabled"] = False
3336
2258
else:
3337
client["expires"] = (
3338
datetime.datetime.utcnow()
3339
+ client["timeout"])
3340
logger.debug("Last checker succeeded,"
3341
" keeping {} enabled".format(
3342
client_name))
2259
client["expires"] = (datetime.datetime
2260
.utcnow()
2261
+ client["timeout"])
2262
3343
2263
try:
3344
client["secret"] = pgp.decrypt(
3345
client["encrypted_secret"],
3346
client_settings[client_name]["secret"])
2264
client["secret"] = (
2265
pgp.decrypt(client["encrypted_secret"],
2266
client_settings[client_name]
2267
["secret"]))
3347
2268
except PGPError:
3348
2269
# If decryption fails, we use secret from new settings
3349
logger.debug("Failed to decrypt {} old secret".format(
3350
client_name))
3351
client["secret"] = (client_settings[client_name]
3352
["secret"])
2270
logger.debug("Failed to decrypt {0} old secret"
2271
.format(client_name))
2272
client["secret"] = (
2273
client_settings[client_name]["secret"])
3353
2274
2275
3354
2276
# Add/remove clients based on new changes made to config
3355
for client_name in (set(old_client_settings)
3356
- set(client_settings)):
2277
for client_name in set(old_client_settings) - set(client_settings):
3357
2278
del clients_data[client_name]
3358
for client_name in (set(client_settings)
3359
- set(old_client_settings)):
2279
for client_name in set(client_settings) - set(old_client_settings):
3360
2280
clients_data[client_name] = client_settings[client_name]
3361
2281
3362
# Create all client objects
3363
for client_name, client in clients_data.items():
2282
# Create clients all clients
2283
for client_name, client in clients_data.iteritems():
3364
2284
tcp_server.clients[client_name] = client_class(
3365
name=client_name,
3366
settings=client,
3367
server_settings=server_settings)
3368
2285
name = client_name, settings = client)
2286
3369
2287
if not tcp_server.clients:
3370
2288
logger.warning("No clients defined")
3371
3372
if not foreground:
3373
if pidfile is not None:
3374
pid = os.getpid()
3375
try:
3376
with pidfile:
3377
print(pid, file=pidfile)
3378
except IOError:
3379
logger.error("Could not write to file %r with PID %d",
3380
pidfilename, pid)
3381
del pidfile
2289
2290
if not debug:
2291
try:
2292
with pidfile:
2293
pid = os.getpid()
2294
pidfile.write(str(pid) + "\n".encode("utf-8"))
2295
del pidfile
2296
except IOError:
2297
logger.error("Could not write to file %r with PID %d",
2298
pidfilename, pid)
2299
except NameError:
2300
# "pidfile" was never created
2301
pass
3382
2302
del pidfilename
3383
3384
for termsig in (signal.SIGHUP, signal.SIGTERM):
3385
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3386
lambda: main_loop.quit() and False)
3387
2303
signal.signal(signal.SIGINT, signal.SIG_IGN)
2304
2305
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2306
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2307
3388
2308
if use_dbus:
3389
3390
@alternate_dbus_interfaces(
3391
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3392
class MandosDBusService(DBusObjectWithObjectManager):
2309
class MandosDBusService(dbus.service.Object):
3393
2310
"""A D-Bus proxy object"""
3394
3395
2311
def __init__(self):
3396
2312
dbus.service.Object.__init__(self, bus, "/")
3397
3398
2313
_interface = "se.recompile.Mandos"
3399
2314
3400
2315
@dbus.service.signal(_interface, signature="o")
3401
2316
def ClientAdded(self, objpath):
3402
2317
"D-Bus signal"
3403
2318
pass
3404
2319
3405
2320
@dbus.service.signal(_interface, signature="ss")
3406
def ClientNotFound(self, key_id, address):
2321
def ClientNotFound(self, fingerprint, address):
3407
2322
"D-Bus signal"
3408
2323
pass
3409
3410
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3411
"true"})
2324
3412
2325
@dbus.service.signal(_interface, signature="os")
3413
2326
def ClientRemoved(self, objpath, name):
3414
2327
"D-Bus signal"
3415
2328
pass
3416
3417
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3418
"true"})
2329
3419
2330
@dbus.service.method(_interface, out_signature="ao")
3420
2331
def GetAllClients(self):
3421
2332
"D-Bus method"
3422
return dbus.Array(c.dbus_object_path for c in
3423
tcp_server.clients.values())
3424
3425
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3426
"true"})
2333
return dbus.Array(c.dbus_object_path
2334
for c in
2335
tcp_server.clients.itervalues())
2336
3427
2337
@dbus.service.method(_interface,
3428
2338
out_signature="a{oa{sv}}")
3429
2339
def GetAllClientsWithProperties(self):
3430
2340
"D-Bus method"
3431
2341
return dbus.Dictionary(
3432
{c.dbus_object_path: c.GetAll(
3433
"se.recompile.Mandos.Client")
3434
for c in tcp_server.clients.values()},
2342
((c.dbus_object_path, c.GetAll(""))
2343
for c in tcp_server.clients.itervalues()),
3435
2344
signature="oa{sv}")
3436
2345
3437
2346
@dbus.service.method(_interface, in_signature="o")
3438
2347
def RemoveClient(self, object_path):
3439
2348
"D-Bus method"
3440
for c in tcp_server.clients.values():
2349
for c in tcp_server.clients.itervalues():
3441
2350
if c.dbus_object_path == object_path:
3442
2351
del tcp_server.clients[c.name]
3443
2352
c.remove_from_connection()
3444
# Don't signal the disabling
2353
# Don't signal anything except ClientRemoved
3445
2354
c.disable(quiet=True)
3446
# Emit D-Bus signal for removal
3447
self.client_removed_signal(c)
2355
# Emit D-Bus signal
2356
self.ClientRemoved(object_path, c.name)
3448
2357
return
3449
2358
raise KeyError(object_path)
3450
2359
3451
2360
del _interface
3452
3453
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3454
out_signature="a{oa{sa{sv}}}")
3455
def GetManagedObjects(self):
3456
"""D-Bus method"""
3457
return dbus.Dictionary(
3458
{client.dbus_object_path:
3459
dbus.Dictionary(
3460
{interface: client.GetAll(interface)
3461
for interface in
3462
client._get_all_interface_names()})
3463
for client in tcp_server.clients.values()})
3464
3465
def client_added_signal(self, client):
3466
"""Send the new standard signal and the old signal"""
3467
if use_dbus:
3468
# New standard signal
3469
self.InterfacesAdded(
3470
client.dbus_object_path,
3471
dbus.Dictionary(
3472
{interface: client.GetAll(interface)
3473
for interface in
3474
client._get_all_interface_names()}))
3475
# Old signal
3476
self.ClientAdded(client.dbus_object_path)
3477
3478
def client_removed_signal(self, client):
3479
"""Send the new standard signal and the old signal"""
3480
if use_dbus:
3481
# New standard signal
3482
self.InterfacesRemoved(
3483
client.dbus_object_path,
3484
client._get_all_interface_names())
3485
# Old signal
3486
self.ClientRemoved(client.dbus_object_path,
3487
client.name)
3488
3489
mandos_dbus_service = MandosDBusService()
3490
3491
# Save modules to variables to exempt the modules from being
3492
# unloaded before the function registered with atexit() is run.
3493
mp = multiprocessing
3494
wn = wnull
3495
2361
2362
class MandosDBusServiceTransitional(MandosDBusService):
2363
__metaclass__ = AlternateDBusNamesMetaclass
2364
mandos_dbus_service = MandosDBusServiceTransitional()
2365
3496
2366
def cleanup():
3497
2367
"Cleanup function; run on exit"
3498
if zeroconf:
3499
service.cleanup()
3500
3501
mp.active_children()
3502
wn.close()
2368
service.cleanup()
2369
2370
multiprocessing.active_children()
3503
2371
if not (tcp_server.clients or client_settings):
3504
2372
return
3505
2373
3506
2374
# Store client before exiting. Secrets are encrypted with key
3507
2375
# based on what config file has. If config file is
3508
2376
# removed/edited, old secret will thus be unrecovable.
3509
2377
clients = {}
3510
2378
with PGPEngine() as pgp:
3511
for client in tcp_server.clients.values():
2379
for client in tcp_server.clients.itervalues():
3512
2380
key = client_settings[client.name]["secret"]
3513
2381
client.encrypted_secret = pgp.encrypt(client.secret,
3514
2382
key)
3515
2383
client_dict = {}
3516
2384
3517
2385
# A list of attributes that can not be pickled
3518
2386
# + secret.
3519
exclude = {"bus", "changedstate", "secret",
3520
"checker", "server_settings"}
3521
for name, typ in inspect.getmembers(dbus.service
3522
.Object):
2387
exclude = set(("bus", "changedstate", "secret",
2388
"checker"))
2389
for name, typ in (inspect.getmembers
2390
(dbus.service.Object)):
3523
2391
exclude.add(name)
3524
2392
3525
2393
client_dict["encrypted_secret"] = (client
3526
2394
.encrypted_secret)
3527
2395
for attr in client.client_structure:
3528
2396
if attr not in exclude:
3529
2397
client_dict[attr] = getattr(client, attr)
3530
2398
3531
2399
clients[client.name] = client_dict
3532
2400
del client_settings[client.name]["secret"]
3533
2401
3534
2402
try:
3535
with tempfile.NamedTemporaryFile(
3536
mode='wb',
3537
suffix=".pickle",
3538
prefix='clients-',
3539
dir=os.path.dirname(stored_state_path),
3540
delete=False) as stored_state:
3541
pickle.dump((clients, client_settings), stored_state,
3542
protocol=2)
3543
tempname = stored_state.name
3544
os.rename(tempname, stored_state_path)
2403
with os.fdopen(os.open(stored_state_path,
2404
os.O_CREAT|os.O_WRONLY|os.O_TRUNC,
2405
0600), "wb") as stored_state:
2406
pickle.dump((clients, client_settings), stored_state)
3545
2407
except (IOError, OSError) as e:
3546
if not debug:
3547
try:
3548
os.remove(tempname)
3549
except NameError:
3550
pass
3551
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3552
logger.warning("Could not save persistent state: {}"
3553
.format(os.strerror(e.errno)))
3554
else:
3555
logger.warning("Could not save persistent state:",
3556
exc_info=e)
2408
logger.warning("Could not save persistent state: {0}"
2409
.format(e))
2410
if e.errno not in (errno.ENOENT, errno.EACCES):
3557
2411
raise
3558
2412
3559
2413
# Delete all clients, and settings from config
3560
2414
while tcp_server.clients:
3561
2415
name, client = tcp_server.clients.popitem()
3562
2416
if use_dbus:
3563
2417
client.remove_from_connection()
3564
# Don't signal the disabling
2418
# Don't signal anything except ClientRemoved
3565
2419
client.disable(quiet=True)
3566
# Emit D-Bus signal for removal
3567
2420
if use_dbus:
3568
mandos_dbus_service.client_removed_signal(client)
2421
# Emit D-Bus signal
2422
mandos_dbus_service.ClientRemoved(client
2423
.dbus_object_path,
2424
client.name)
3569
2425
client_settings.clear()
3570
2426
3571
2427
atexit.register(cleanup)
3572
3573
for client in tcp_server.clients.values():
2428
2429
for client in tcp_server.clients.itervalues():
3574
2430
if use_dbus:
3575
# Emit D-Bus signal for adding
3576
mandos_dbus_service.client_added_signal(client)
2431
# Emit D-Bus signal
2432
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3577
2433
# Need to initiate checking of clients
3578
2434
if client.enabled:
3579
2435
client.init_checker()
3580
2436
3581
2437
tcp_server.enable()
3582
2438
tcp_server.server_activate()
3583
2439
3584
2440
# Find out what port we got
3585
if zeroconf:
3586
service.port = tcp_server.socket.getsockname()[1]
2441
service.port = tcp_server.socket.getsockname()[1]
3587
2442
if use_ipv6:
3588
2443
logger.info("Now listening on address %r, port %d,"
3589
" flowinfo %d, scope_id %d",
3590
*tcp_server.socket.getsockname())
2444
" flowinfo %d, scope_id %d"
2445
% tcp_server.socket.getsockname())
3591
2446
else: # IPv4
3592
logger.info("Now listening on address %r, port %d",
3593
*tcp_server.socket.getsockname())
3594
3595
# service.interface = tcp_server.socket.getsockname()[3]
3596
2447
logger.info("Now listening on address %r, port %d"
2448
% tcp_server.socket.getsockname())
2449
2450
#service.interface = tcp_server.socket.getsockname()[3]
2451
3597
2452
try:
3598
if zeroconf:
3599
# From the Avahi example code
3600
try:
3601
service.activate()
3602
except dbus.exceptions.DBusException as error:
3603
logger.critical("D-Bus Exception", exc_info=error)
3604
cleanup()
3605
sys.exit(1)
3606
# End of Avahi example code
3607
3608
GLib.io_add_watch(
3609
GLib.IOChannel.unix_new(tcp_server.fileno()),
3610
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3611
lambda *args, **kwargs: (tcp_server.handle_request
3612
(*args[2:], **kwargs) or True))
3613
2453
# From the Avahi example code
2454
try:
2455
service.activate()
2456
except dbus.exceptions.DBusException as error:
2457
logger.critical("DBusException: %s", error)
2458
cleanup()
2459
sys.exit(1)
2460
# End of Avahi example code
2461
2462
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2463
lambda *args, **kwargs:
2464
(tcp_server.handle_request
2465
(*args[2:], **kwargs) or True))
2466
3614
2467
logger.debug("Starting main loop")
3615
2468
main_loop.run()
3616
2469
except AvahiError as error:
3617
logger.critical("Avahi Error", exc_info=error)
2470
logger.critical("AvahiError: %s", error)
3618
2471
cleanup()
3619
2472
sys.exit(1)
3620
2473
except KeyboardInterrupt:
3625
2478
# Must run before the D-Bus bus name gets deregistered
3626
2479
cleanup()
3627
2480
3628
3629
def should_only_run_tests():
3630
parser = argparse.ArgumentParser(add_help=False)
3631
parser.add_argument("--check", action='store_true')
3632
args, unknown_args = parser.parse_known_args()
3633
run_tests = args.check
3634
if run_tests:
3635
# Remove --check argument from sys.argv
3636
sys.argv[1:] = unknown_args
3637
return run_tests
3638
3639
# Add all tests from doctest strings
3640
def load_tests(loader, tests, none):
3641
import doctest
3642
tests.addTests(doctest.DocTestSuite())
3643
return tests
3644
3645
2481
if __name__ == '__main__':
3646
try:
3647
if should_only_run_tests():
3648
# Call using ./mandos --check [--verbose]
3649
unittest.main()
3650
else:
3651
main()
3652
finally:
3653
logging.shutdown()
2482
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0