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- Committer: Teddy Hogeborn
- Date: 2011-12-31 20:07:11 UTC
- mfrom: (237.17.9 wireless-network-hook)
- mto: (237.7.109 trunk) (299.1.1 release) (300.1.1 release) (301.1.1 release)
- mto: This revision was merged to the branch mainline in revision 290.
- Revision ID: teddy@recompile.se-20111231200711-6dli3r8drftem57r
Merge new wireless network hook. Fix bridge network hook to use
hardware addresses instead of interface names. Implement and document
new "CONNECT" environment variable for network hooks.
hardware addresses instead of interface names. Implement and document
new "CONNECT" environment variable for network hooks.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2019 Teddy Hogeborn
15
# Copyright © 2008-2019 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
66
import binascii
76
67
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
68
82
69
import dbus
83
70
import dbus.service
84
import gi
85
from gi.repository import GLib
71
import gobject
72
import avahi
86
73
from dbus.mainloop.glib import DBusGMainLoop
87
74
import ctypes
88
75
import ctypes.util
89
76
import xml.dom.minidom
90
77
import inspect
91
92
if sys.version_info.major == 2:
93
__metaclass__ = type
94
str = unicode
95
96
# Show warnings by default
97
if not sys.warnoptions:
98
import warnings
99
warnings.simplefilter("default")
100
101
# Try to find the value of SO_BINDTODEVICE:
78
import GnuPGInterface
79
102
80
try:
103
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
104
# newer, and it is also the most natural place for it:
105
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
106
82
except AttributeError:
107
83
try:
108
# This is where SO_BINDTODEVICE was up to and including Python
109
# 2.6, and also 3.2:
110
84
from IN import SO_BINDTODEVICE
111
85
except ImportError:
112
# In Python 2.7 it seems to have been removed entirely.
113
# Try running the C preprocessor:
114
try:
115
cc = subprocess.Popen(["cc", "--language=c", "-E",
116
"/dev/stdin"],
117
stdin=subprocess.PIPE,
118
stdout=subprocess.PIPE)
119
stdout = cc.communicate(
120
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
121
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
122
except (OSError, ValueError, IndexError):
123
# No value found
124
SO_BINDTODEVICE = None
125
126
if sys.version_info < (3, 2):
127
configparser.Configparser = configparser.SafeConfigParser
128
129
version = "1.8.9"
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
130
89
stored_state_file = "clients.pickle"
131
90
132
91
logger = logging.getLogger()
133
logging.captureWarnings(True) # Show warnings via the logging system
134
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
135
95
136
96
try:
137
if_nametoindex = ctypes.cdll.LoadLibrary(
138
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
139
100
except (OSError, AttributeError):
140
141
101
def if_nametoindex(interface):
142
102
"Get an interface index the hard way, i.e. using fcntl()"
143
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
144
104
with contextlib.closing(socket.socket()) as s:
145
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
146
struct.pack(b"16s16x", interface))
147
interface_index = struct.unpack("I", ifreq[16:20])[0]
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
148
110
return interface_index
149
111
150
112
151
def copy_function(func):
152
"""Make a copy of a function"""
153
if sys.version_info.major == 2:
154
return types.FunctionType(func.func_code,
155
func.func_globals,
156
func.func_name,
157
func.func_defaults,
158
func.func_closure)
159
else:
160
return types.FunctionType(func.__code__,
161
func.__globals__,
162
func.__name__,
163
func.__defaults__,
164
func.__closure__)
165
166
167
113
def initlogger(debug, level=logging.WARNING):
168
114
"""init logger and add loglevel"""
169
170
global syslogger
171
syslogger = (logging.handlers.SysLogHandler(
172
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
173
address="/dev/log"))
115
174
116
syslogger.setFormatter(logging.Formatter
175
117
('Mandos [%(process)d]: %(levelname)s:'
176
118
' %(message)s'))
177
119
logger.addHandler(syslogger)
178
120
179
121
if debug:
180
122
console = logging.StreamHandler()
181
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
191
133
pass
192
134
193
135
194
class PGPEngine:
136
class PGPEngine(object):
195
137
"""A simple class for OpenPGP symmetric encryption & decryption"""
196
197
138
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
198
140
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
199
self.gpg = "gpg"
200
try:
201
output = subprocess.check_output(["gpgconf"])
202
for line in output.splitlines():
203
name, text, path = line.split(b":")
204
if name == b"gpg":
205
self.gpg = path
206
break
207
except OSError as e:
208
if e.errno != errno.ENOENT:
209
raise
210
self.gnupgargs = ['--batch',
211
'--homedir', self.tempdir,
212
'--force-mdc',
213
'--quiet']
214
# Only GPG version 1 has the --no-use-agent option.
215
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
216
self.gnupgargs.append("--no-use-agent")
217
141
self.gnupg = GnuPGInterface.GnuPG()
142
self.gnupg.options.meta_interactive = False
143
self.gnupg.options.homedir = self.tempdir
144
self.gnupg.options.extra_args.extend(['--force-mdc',
145
'--quiet',
146
'--no-use-agent'])
147
218
148
def __enter__(self):
219
149
return self
220
221
def __exit__(self, exc_type, exc_value, traceback):
150
151
def __exit__ (self, exc_type, exc_value, traceback):
222
152
self._cleanup()
223
153
return False
224
154
225
155
def __del__(self):
226
156
self._cleanup()
227
157
228
158
def _cleanup(self):
229
159
if self.tempdir is not None:
230
160
# Delete contents of tempdir
231
161
for root, dirs, files in os.walk(self.tempdir,
232
topdown=False):
162
topdown = False):
233
163
for filename in files:
234
164
os.remove(os.path.join(root, filename))
235
165
for dirname in dirs:
237
167
# Remove tempdir
238
168
os.rmdir(self.tempdir)
239
169
self.tempdir = None
240
170
241
171
def password_encode(self, password):
242
172
# Passphrase can not be empty and can not contain newlines or
243
173
# NUL bytes. So we prefix it and hex encode it.
244
encoded = b"mandos" + binascii.hexlify(password)
245
if len(encoded) > 2048:
246
# GnuPG can't handle long passwords, so encode differently
247
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
248
.replace(b"\n", b"\\n")
249
.replace(b"\0", b"\\x00"))
250
return encoded
251
174
return b"mandos" + binascii.hexlify(password)
175
252
176
def encrypt(self, data, password):
253
passphrase = self.password_encode(password)
254
with tempfile.NamedTemporaryFile(
255
dir=self.tempdir) as passfile:
256
passfile.write(passphrase)
257
passfile.flush()
258
proc = subprocess.Popen([self.gpg, '--symmetric',
259
'--passphrase-file',
260
passfile.name]
261
+ self.gnupgargs,
262
stdin=subprocess.PIPE,
263
stdout=subprocess.PIPE,
264
stderr=subprocess.PIPE)
265
ciphertext, err = proc.communicate(input=data)
266
if proc.returncode != 0:
267
raise PGPError(err)
177
self.gnupg.passphrase = self.password_encode(password)
178
with open(os.devnull) as devnull:
179
try:
180
proc = self.gnupg.run(['--symmetric'],
181
create_fhs=['stdin', 'stdout'],
182
attach_fhs={'stderr': devnull})
183
with contextlib.closing(proc.handles['stdin']) as f:
184
f.write(data)
185
with contextlib.closing(proc.handles['stdout']) as f:
186
ciphertext = f.read()
187
proc.wait()
188
except IOError as e:
189
raise PGPError(e)
190
self.gnupg.passphrase = None
268
191
return ciphertext
269
192
270
193
def decrypt(self, data, password):
271
passphrase = self.password_encode(password)
272
with tempfile.NamedTemporaryFile(
273
dir=self.tempdir) as passfile:
274
passfile.write(passphrase)
275
passfile.flush()
276
proc = subprocess.Popen([self.gpg, '--decrypt',
277
'--passphrase-file',
278
passfile.name]
279
+ self.gnupgargs,
280
stdin=subprocess.PIPE,
281
stdout=subprocess.PIPE,
282
stderr=subprocess.PIPE)
283
decrypted_plaintext, err = proc.communicate(input=data)
284
if proc.returncode != 0:
285
raise PGPError(err)
194
self.gnupg.passphrase = self.password_encode(password)
195
with open(os.devnull) as devnull:
196
try:
197
proc = self.gnupg.run(['--decrypt'],
198
create_fhs=['stdin', 'stdout'],
199
attach_fhs={'stderr': devnull})
200
with contextlib.closing(proc.handles['stdin'] ) as f:
201
f.write(data)
202
with contextlib.closing(proc.handles['stdout']) as f:
203
decrypted_plaintext = f.read()
204
proc.wait()
205
except IOError as e:
206
raise PGPError(e)
207
self.gnupg.passphrase = None
286
208
return decrypted_plaintext
287
209
288
210
289
# Pretend that we have an Avahi module
290
class avahi:
291
"""This isn't so much a class as it is a module-like namespace."""
292
IF_UNSPEC = -1 # avahi-common/address.h
293
PROTO_UNSPEC = -1 # avahi-common/address.h
294
PROTO_INET = 0 # avahi-common/address.h
295
PROTO_INET6 = 1 # avahi-common/address.h
296
DBUS_NAME = "org.freedesktop.Avahi"
297
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
298
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
299
DBUS_PATH_SERVER = "/"
300
301
@staticmethod
302
def string_array_to_txt_array(t):
303
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
304
for s in t), signature="ay")
305
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
306
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
307
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
308
SERVER_INVALID = 0 # avahi-common/defs.h
309
SERVER_REGISTERING = 1 # avahi-common/defs.h
310
SERVER_RUNNING = 2 # avahi-common/defs.h
311
SERVER_COLLISION = 3 # avahi-common/defs.h
312
SERVER_FAILURE = 4 # avahi-common/defs.h
313
314
211
315
212
class AvahiError(Exception):
316
213
def __init__(self, value, *args, **kwargs):
317
214
self.value = value
318
return super(AvahiError, self).__init__(value, *args,
319
**kwargs)
320
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
321
218
322
219
class AvahiServiceError(AvahiError):
323
220
pass
324
221
325
326
222
class AvahiGroupError(AvahiError):
327
223
pass
328
224
329
225
330
class AvahiService:
226
class AvahiService(object):
331
227
"""An Avahi (Zeroconf) service.
332
228
333
229
Attributes:
334
230
interface: integer; avahi.IF_UNSPEC or an interface index.
335
231
Used to optionally bind to the specified interface.
336
232
name: string; Example: 'Mandos'
337
233
type: string; Example: '_mandos._tcp'.
338
See <https://www.iana.org/assignments/service-names-port-numbers>
234
See <http://www.dns-sd.org/ServiceTypes.html>
339
235
port: integer; what port to announce
340
236
TXT: list of strings; TXT record for the service
341
237
domain: string; Domain to publish on, default to .local if empty.
347
243
server: D-Bus Server
348
244
bus: dbus.SystemBus()
349
245
"""
350
351
def __init__(self,
352
interface=avahi.IF_UNSPEC,
353
name=None,
354
servicetype=None,
355
port=None,
356
TXT=None,
357
domain="",
358
host="",
359
max_renames=32768,
360
protocol=avahi.PROTO_UNSPEC,
361
bus=None):
246
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
247
servicetype = None, port = None, TXT = None,
248
domain = "", host = "", max_renames = 32768,
249
protocol = avahi.PROTO_UNSPEC, bus = None):
362
250
self.interface = interface
363
251
self.name = name
364
252
self.type = servicetype
373
261
self.server = None
374
262
self.bus = bus
375
263
self.entry_group_state_changed_match = None
376
377
def rename(self, remove=True):
264
def rename(self):
378
265
"""Derived from the Avahi example code"""
379
266
if self.rename_count >= self.max_renames:
380
267
logger.critical("No suitable Zeroconf service name found"
381
268
" after %i retries, exiting.",
382
269
self.rename_count)
383
270
raise AvahiServiceError("Too many renames")
384
self.name = str(
385
self.server.GetAlternativeServiceName(self.name))
386
self.rename_count += 1
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
387
273
logger.info("Changing Zeroconf service name to %r ...",
388
274
self.name)
389
if remove:
390
self.remove()
275
self.remove()
391
276
try:
392
277
self.add()
393
278
except dbus.exceptions.DBusException as error:
394
if (error.get_dbus_name()
395
== "org.freedesktop.Avahi.CollisionError"):
396
logger.info("Local Zeroconf service name collision.")
397
return self.rename(remove=False)
398
else:
399
logger.critical("D-Bus Exception", exc_info=error)
400
self.cleanup()
401
os._exit(1)
402
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
403
283
def remove(self):
404
284
"""Derived from the Avahi example code"""
405
285
if self.entry_group_state_changed_match is not None:
407
287
self.entry_group_state_changed_match = None
408
288
if self.group is not None:
409
289
self.group.Reset()
410
411
290
def add(self):
412
291
"""Derived from the Avahi example code"""
413
292
self.remove()
430
309
dbus.UInt16(self.port),
431
310
avahi.string_array_to_txt_array(self.TXT))
432
311
self.group.Commit()
433
434
312
def entry_group_state_changed(self, state, error):
435
313
"""Derived from the Avahi example code"""
436
314
logger.debug("Avahi entry group state change: %i", state)
437
315
438
316
if state == avahi.ENTRY_GROUP_ESTABLISHED:
439
317
logger.debug("Zeroconf service established.")
440
318
elif state == avahi.ENTRY_GROUP_COLLISION:
442
320
self.rename()
443
321
elif state == avahi.ENTRY_GROUP_FAILURE:
444
322
logger.critical("Avahi: Error in group state changed %s",
445
str(error))
446
raise AvahiGroupError("State changed: {!s}".format(error))
447
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
448
326
def cleanup(self):
449
327
"""Derived from the Avahi example code"""
450
328
if self.group is not None:
455
333
pass
456
334
self.group = None
457
335
self.remove()
458
459
336
def server_state_changed(self, state, error=None):
460
337
"""Derived from the Avahi example code"""
461
338
logger.debug("Avahi server state change: %i", state)
462
bad_states = {
463
avahi.SERVER_INVALID: "Zeroconf server invalid",
464
avahi.SERVER_REGISTERING: None,
465
avahi.SERVER_COLLISION: "Zeroconf server name collision",
466
avahi.SERVER_FAILURE: "Zeroconf server failure",
467
}
339
bad_states = { avahi.SERVER_INVALID:
340
"Zeroconf server invalid",
341
avahi.SERVER_REGISTERING: None,
342
avahi.SERVER_COLLISION:
343
"Zeroconf server name collision",
344
avahi.SERVER_FAILURE:
345
"Zeroconf server failure" }
468
346
if state in bad_states:
469
347
if bad_states[state] is not None:
470
348
if error is None:
473
351
logger.error(bad_states[state] + ": %r", error)
474
352
self.cleanup()
475
353
elif state == avahi.SERVER_RUNNING:
476
try:
477
self.add()
478
except dbus.exceptions.DBusException as error:
479
if (error.get_dbus_name()
480
== "org.freedesktop.Avahi.CollisionError"):
481
logger.info("Local Zeroconf service name"
482
" collision.")
483
return self.rename(remove=False)
484
else:
485
logger.critical("D-Bus Exception", exc_info=error)
486
self.cleanup()
487
os._exit(1)
354
self.add()
488
355
else:
489
356
if error is None:
490
357
logger.debug("Unknown state: %r", state)
491
358
else:
492
359
logger.debug("Unknown state: %r: %r", state, error)
493
494
360
def activate(self):
495
361
"""Derived from the Avahi example code"""
496
362
if self.server is None:
500
366
follow_name_owner_changes=True),
501
367
avahi.DBUS_INTERFACE_SERVER)
502
368
self.server.connect_to_signal("StateChanged",
503
self.server_state_changed)
369
self.server_state_changed)
504
370
self.server_state_changed(self.server.GetState())
505
371
506
507
372
class AvahiServiceToSyslog(AvahiService):
508
def rename(self, *args, **kwargs):
373
def rename(self):
509
374
"""Add the new name to the syslog messages"""
510
ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)
511
syslogger.setFormatter(logging.Formatter(
512
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
513
.format(self.name)))
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
379
% self.name))
514
380
return ret
515
381
516
517
# Pretend that we have a GnuTLS module
518
class gnutls:
519
"""This isn't so much a class as it is a module-like namespace."""
520
521
library = ctypes.util.find_library("gnutls")
522
if library is None:
523
library = ctypes.util.find_library("gnutls-deb0")
524
_library = ctypes.cdll.LoadLibrary(library)
525
del library
526
527
# Unless otherwise indicated, the constants and types below are
528
# all from the gnutls/gnutls.h C header file.
529
530
# Constants
531
E_SUCCESS = 0
532
E_INTERRUPTED = -52
533
E_AGAIN = -28
534
CRT_OPENPGP = 2
535
CRT_RAWPK = 3
536
CLIENT = 2
537
SHUT_RDWR = 0
538
CRD_CERTIFICATE = 1
539
E_NO_CERTIFICATE_FOUND = -49
540
X509_FMT_DER = 0
541
NO_TICKETS = 1<<10
542
ENABLE_RAWPK = 1<<18
543
CTYPE_PEERS = 3
544
KEYID_USE_SHA256 = 1 # gnutls/x509.h
545
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
546
547
# Types
548
class session_int(ctypes.Structure):
549
_fields_ = []
550
session_t = ctypes.POINTER(session_int)
551
552
class certificate_credentials_st(ctypes.Structure):
553
_fields_ = []
554
certificate_credentials_t = ctypes.POINTER(
555
certificate_credentials_st)
556
certificate_type_t = ctypes.c_int
557
558
class datum_t(ctypes.Structure):
559
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
560
('size', ctypes.c_uint)]
561
562
class openpgp_crt_int(ctypes.Structure):
563
_fields_ = []
564
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
565
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
566
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
567
credentials_type_t = ctypes.c_int
568
transport_ptr_t = ctypes.c_void_p
569
close_request_t = ctypes.c_int
570
571
# Exceptions
572
class Error(Exception):
573
def __init__(self, message=None, code=None, args=()):
574
# Default usage is by a message string, but if a return
575
# code is passed, convert it to a string with
576
# gnutls.strerror()
577
self.code = code
578
if message is None and code is not None:
579
message = gnutls.strerror(code)
580
return super(gnutls.Error, self).__init__(
581
message, *args)
582
583
class CertificateSecurityError(Error):
584
pass
585
586
# Classes
587
class Credentials:
588
def __init__(self):
589
self._c_object = gnutls.certificate_credentials_t()
590
gnutls.certificate_allocate_credentials(
591
ctypes.byref(self._c_object))
592
self.type = gnutls.CRD_CERTIFICATE
593
594
def __del__(self):
595
gnutls.certificate_free_credentials(self._c_object)
596
597
class ClientSession:
598
def __init__(self, socket, credentials=None):
599
self._c_object = gnutls.session_t()
600
gnutls_flags = gnutls.CLIENT
601
if gnutls.check_version(b"3.5.6"):
602
gnutls_flags |= gnutls.NO_TICKETS
603
if gnutls.has_rawpk:
604
gnutls_flags |= gnutls.ENABLE_RAWPK
605
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
606
del gnutls_flags
607
gnutls.set_default_priority(self._c_object)
608
gnutls.transport_set_ptr(self._c_object, socket.fileno())
609
gnutls.handshake_set_private_extensions(self._c_object,
610
True)
611
self.socket = socket
612
if credentials is None:
613
credentials = gnutls.Credentials()
614
gnutls.credentials_set(self._c_object, credentials.type,
615
ctypes.cast(credentials._c_object,
616
ctypes.c_void_p))
617
self.credentials = credentials
618
619
def __del__(self):
620
gnutls.deinit(self._c_object)
621
622
def handshake(self):
623
return gnutls.handshake(self._c_object)
624
625
def send(self, data):
626
data = bytes(data)
627
data_len = len(data)
628
while data_len > 0:
629
data_len -= gnutls.record_send(self._c_object,
630
data[-data_len:],
631
data_len)
632
633
def bye(self):
634
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
635
636
# Error handling functions
637
def _error_code(result):
638
"""A function to raise exceptions on errors, suitable
639
for the 'restype' attribute on ctypes functions"""
640
if result >= 0:
641
return result
642
if result == gnutls.E_NO_CERTIFICATE_FOUND:
643
raise gnutls.CertificateSecurityError(code=result)
644
raise gnutls.Error(code=result)
645
646
def _retry_on_error(result, func, arguments):
647
"""A function to retry on some errors, suitable
648
for the 'errcheck' attribute on ctypes functions"""
649
while result < 0:
650
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
651
return _error_code(result)
652
result = func(*arguments)
653
return result
654
655
# Unless otherwise indicated, the function declarations below are
656
# all from the gnutls/gnutls.h C header file.
657
658
# Functions
659
priority_set_direct = _library.gnutls_priority_set_direct
660
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
661
ctypes.POINTER(ctypes.c_char_p)]
662
priority_set_direct.restype = _error_code
663
664
init = _library.gnutls_init
665
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
666
init.restype = _error_code
667
668
set_default_priority = _library.gnutls_set_default_priority
669
set_default_priority.argtypes = [session_t]
670
set_default_priority.restype = _error_code
671
672
record_send = _library.gnutls_record_send
673
record_send.argtypes = [session_t, ctypes.c_void_p,
674
ctypes.c_size_t]
675
record_send.restype = ctypes.c_ssize_t
676
record_send.errcheck = _retry_on_error
677
678
certificate_allocate_credentials = (
679
_library.gnutls_certificate_allocate_credentials)
680
certificate_allocate_credentials.argtypes = [
681
ctypes.POINTER(certificate_credentials_t)]
682
certificate_allocate_credentials.restype = _error_code
683
684
certificate_free_credentials = (
685
_library.gnutls_certificate_free_credentials)
686
certificate_free_credentials.argtypes = [
687
certificate_credentials_t]
688
certificate_free_credentials.restype = None
689
690
handshake_set_private_extensions = (
691
_library.gnutls_handshake_set_private_extensions)
692
handshake_set_private_extensions.argtypes = [session_t,
693
ctypes.c_int]
694
handshake_set_private_extensions.restype = None
695
696
credentials_set = _library.gnutls_credentials_set
697
credentials_set.argtypes = [session_t, credentials_type_t,
698
ctypes.c_void_p]
699
credentials_set.restype = _error_code
700
701
strerror = _library.gnutls_strerror
702
strerror.argtypes = [ctypes.c_int]
703
strerror.restype = ctypes.c_char_p
704
705
certificate_type_get = _library.gnutls_certificate_type_get
706
certificate_type_get.argtypes = [session_t]
707
certificate_type_get.restype = _error_code
708
709
certificate_get_peers = _library.gnutls_certificate_get_peers
710
certificate_get_peers.argtypes = [session_t,
711
ctypes.POINTER(ctypes.c_uint)]
712
certificate_get_peers.restype = ctypes.POINTER(datum_t)
713
714
global_set_log_level = _library.gnutls_global_set_log_level
715
global_set_log_level.argtypes = [ctypes.c_int]
716
global_set_log_level.restype = None
717
718
global_set_log_function = _library.gnutls_global_set_log_function
719
global_set_log_function.argtypes = [log_func]
720
global_set_log_function.restype = None
721
722
deinit = _library.gnutls_deinit
723
deinit.argtypes = [session_t]
724
deinit.restype = None
725
726
handshake = _library.gnutls_handshake
727
handshake.argtypes = [session_t]
728
handshake.restype = _error_code
729
handshake.errcheck = _retry_on_error
730
731
transport_set_ptr = _library.gnutls_transport_set_ptr
732
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
733
transport_set_ptr.restype = None
734
735
bye = _library.gnutls_bye
736
bye.argtypes = [session_t, close_request_t]
737
bye.restype = _error_code
738
bye.errcheck = _retry_on_error
739
740
check_version = _library.gnutls_check_version
741
check_version.argtypes = [ctypes.c_char_p]
742
check_version.restype = ctypes.c_char_p
743
744
_need_version = b"3.3.0"
745
if check_version(_need_version) is None:
746
raise self.Error("Needs GnuTLS {} or later"
747
.format(_need_version))
748
749
_tls_rawpk_version = b"3.6.6"
750
has_rawpk = bool(check_version(_tls_rawpk_version))
751
752
if has_rawpk:
753
# Types
754
class pubkey_st(ctypes.Structure):
755
_fields = []
756
pubkey_t = ctypes.POINTER(pubkey_st)
757
758
x509_crt_fmt_t = ctypes.c_int
759
760
# All the function declarations below are from gnutls/abstract.h
761
pubkey_init = _library.gnutls_pubkey_init
762
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
763
pubkey_init.restype = _error_code
764
765
pubkey_import = _library.gnutls_pubkey_import
766
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
767
x509_crt_fmt_t]
768
pubkey_import.restype = _error_code
769
770
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
771
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
772
ctypes.POINTER(ctypes.c_ubyte),
773
ctypes.POINTER(ctypes.c_size_t)]
774
pubkey_get_key_id.restype = _error_code
775
776
pubkey_deinit = _library.gnutls_pubkey_deinit
777
pubkey_deinit.argtypes = [pubkey_t]
778
pubkey_deinit.restype = None
779
else:
780
# All the function declarations below are from gnutls/openpgp.h
781
782
openpgp_crt_init = _library.gnutls_openpgp_crt_init
783
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
784
openpgp_crt_init.restype = _error_code
785
786
openpgp_crt_import = _library.gnutls_openpgp_crt_import
787
openpgp_crt_import.argtypes = [openpgp_crt_t,
788
ctypes.POINTER(datum_t),
789
openpgp_crt_fmt_t]
790
openpgp_crt_import.restype = _error_code
791
792
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
793
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
794
ctypes.POINTER(ctypes.c_uint)]
795
openpgp_crt_verify_self.restype = _error_code
796
797
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
798
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
799
openpgp_crt_deinit.restype = None
800
801
openpgp_crt_get_fingerprint = (
802
_library.gnutls_openpgp_crt_get_fingerprint)
803
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
804
ctypes.c_void_p,
805
ctypes.POINTER(
806
ctypes.c_size_t)]
807
openpgp_crt_get_fingerprint.restype = _error_code
808
809
if check_version(b"3.6.4"):
810
certificate_type_get2 = _library.gnutls_certificate_type_get2
811
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
812
certificate_type_get2.restype = _error_code
813
814
# Remove non-public functions
815
del _error_code, _retry_on_error
816
817
818
def call_pipe(connection, # : multiprocessing.Connection
819
func, *args, **kwargs):
820
"""This function is meant to be called by multiprocessing.Process
821
822
This function runs func(*args, **kwargs), and writes the resulting
823
return value on the provided multiprocessing.Connection.
824
"""
825
connection.send(func(*args, **kwargs))
826
connection.close()
827
828
829
class Client:
382
def timedelta_to_milliseconds(td):
383
"Convert a datetime.timedelta() to milliseconds"
384
return ((td.days * 24 * 60 * 60 * 1000)
385
+ (td.seconds * 1000)
386
+ (td.microseconds // 1000))
387
388
class Client(object):
830
389
"""A representation of a client host served by this server.
831
390
832
391
Attributes:
833
392
approved: bool(); 'None' if not yet approved/disapproved
834
393
approval_delay: datetime.timedelta(); Time to wait for approval
835
394
approval_duration: datetime.timedelta(); Duration of one approval
836
checker: multiprocessing.Process(); a running checker process used
837
to see if the client lives. 'None' if no process is
838
running.
839
checker_callback_tag: a GLib event source tag, or None
395
checker: subprocess.Popen(); a running checker process used
396
to see if the client lives.
397
'None' if no process is running.
398
checker_callback_tag: a gobject event source tag, or None
840
399
checker_command: string; External command which is run to check
841
400
if client lives. %() expansions are done at
842
401
runtime with vars(self) as dict, so that for
843
402
instance %(name)s can be used in the command.
844
checker_initiator_tag: a GLib event source tag, or None
403
checker_initiator_tag: a gobject event source tag, or None
845
404
created: datetime.datetime(); (UTC) object creation
846
405
client_structure: Object describing what attributes a client has
847
406
and is used for storing the client at exit
848
407
current_checker_command: string; current running checker_command
849
disable_initiator_tag: a GLib event source tag, or None
408
disable_initiator_tag: a gobject event source tag, or None
850
409
enabled: bool()
851
410
fingerprint: string (40 or 32 hexadecimal digits); used to
852
uniquely identify an OpenPGP client
853
key_id: string (64 hexadecimal digits); used to uniquely identify
854
a client using raw public keys
411
uniquely identify the client
855
412
host: string; available for use by the checker command
856
413
interval: datetime.timedelta(); How often to start a new checker
857
414
last_approval_request: datetime.datetime(); (UTC) or None
858
415
last_checked_ok: datetime.datetime(); (UTC) or None
859
416
last_checker_status: integer between 0 and 255 reflecting exit
860
417
status of last checker. -1 reflects crashed
861
checker, -2 means no checker completed yet.
862
last_checker_signal: The signal which killed the last checker, if
863
last_checker_status is -1
418
checker, or None.
864
419
last_enabled: datetime.datetime(); (UTC) or None
865
420
name: string; from the config file, used in log messages and
866
421
D-Bus identifiers
867
422
secret: bytestring; sent verbatim (over TLS) to client
868
423
timeout: datetime.timedelta(); How long from last_checked_ok
869
424
until this client is disabled
870
extended_timeout: extra long timeout when secret has been sent
425
extended_timeout: extra long timeout when password has been sent
871
426
runtime_expansions: Allowed attributes for runtime expansion.
872
427
expires: datetime.datetime(); time (UTC) when a client will be
873
428
disabled, or None
874
server_settings: The server_settings dict from main()
875
429
"""
876
430
877
431
runtime_expansions = ("approval_delay", "approval_duration",
878
"created", "enabled", "expires", "key_id",
879
"fingerprint", "host", "interval",
880
"last_approval_request", "last_checked_ok",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
881
434
"last_enabled", "name", "timeout")
882
client_defaults = {
883
"timeout": "PT5M",
884
"extended_timeout": "PT15M",
885
"interval": "PT2M",
886
"checker": "fping -q -- %%(host)s",
887
"host": "",
888
"approval_delay": "PT0S",
889
"approval_duration": "PT1S",
890
"approved_by_default": "True",
891
"enabled": "True",
892
}
435
client_defaults = { "timeout": "5m",
436
"extended_timeout": "15m",
437
"interval": "2m",
438
"checker": "fping -q -- %%(host)s",
439
"host": "",
440
"approval_delay": "0s",
441
"approval_duration": "1s",
442
"approved_by_default": "True",
443
"enabled": "True",
444
}
445
446
def timeout_milliseconds(self):
447
"Return the 'timeout' attribute in milliseconds"
448
return timedelta_to_milliseconds(self.timeout)
449
450
def extended_timeout_milliseconds(self):
451
"Return the 'extended_timeout' attribute in milliseconds"
452
return timedelta_to_milliseconds(self.extended_timeout)
453
454
def interval_milliseconds(self):
455
"Return the 'interval' attribute in milliseconds"
456
return timedelta_to_milliseconds(self.interval)
457
458
def approval_delay_milliseconds(self):
459
return timedelta_to_milliseconds(self.approval_delay)
893
460
894
461
@staticmethod
895
462
def config_parser(config):
896
"""Construct a new dict of client settings of this form:
463
""" Construct a new dict of client settings of this form:
897
464
{ client_name: {setting_name: value, ...}, ...}
898
with exceptions for any special settings as defined above.
899
NOTE: Must be a pure function. Must return the same result
900
value given the same arguments.
901
"""
465
with exceptions for any special settings as defined above"""
902
466
settings = {}
903
467
for client_name in config.sections():
904
468
section = dict(config.items(client_name))
905
469
client = settings[client_name] = {}
906
470
907
471
client["host"] = section["host"]
908
472
# Reformat values from string types to Python types
909
473
client["approved_by_default"] = config.getboolean(
910
474
client_name, "approved_by_default")
911
client["enabled"] = config.getboolean(client_name,
912
"enabled")
913
914
# Uppercase and remove spaces from key_id and fingerprint
915
# for later comparison purposes with return value from the
916
# key_id() and fingerprint() functions
917
client["key_id"] = (section.get("key_id", "").upper()
918
.replace(" ", ""))
475
client["enabled"] = config.getboolean(client_name, "enabled")
476
919
477
client["fingerprint"] = (section["fingerprint"].upper()
920
478
.replace(" ", ""))
921
479
if "secret" in section:
922
client["secret"] = codecs.decode(section["secret"]
923
.encode("utf-8"),
924
"base64")
480
client["secret"] = section["secret"].decode("base64")
925
481
elif "secfile" in section:
926
482
with open(os.path.expanduser(os.path.expandvars
927
483
(section["secfile"])),
928
484
"rb") as secfile:
929
485
client["secret"] = secfile.read()
930
486
else:
931
raise TypeError("No secret or secfile for section {}"
932
.format(section))
487
raise TypeError("No secret or secfile for section %s"
488
% section)
933
489
client["timeout"] = string_to_delta(section["timeout"])
934
490
client["extended_timeout"] = string_to_delta(
935
491
section["extended_timeout"])
941
497
client["checker_command"] = section["checker"]
942
498
client["last_approval_request"] = None
943
499
client["last_checked_ok"] = None
944
client["last_checker_status"] = -2
500
client["last_checker_status"] = None
501
if client["enabled"]:
502
client["last_enabled"] = datetime.datetime.utcnow()
503
client["expires"] = (datetime.datetime.utcnow()
504
+ client["timeout"])
505
else:
506
client["last_enabled"] = None
507
client["expires"] = None
945
508
946
509
return settings
947
948
def __init__(self, settings, name=None, server_settings=None):
510
511
512
def __init__(self, settings, name = None):
513
"""Note: the 'checker' key in 'config' sets the
514
'checker_command' attribute and *not* the 'checker'
515
attribute."""
949
516
self.name = name
950
if server_settings is None:
951
server_settings = {}
952
self.server_settings = server_settings
953
517
# adding all client settings
954
for setting, value in settings.items():
518
for setting, value in settings.iteritems():
955
519
setattr(self, setting, value)
956
957
if self.enabled:
958
if not hasattr(self, "last_enabled"):
959
self.last_enabled = datetime.datetime.utcnow()
960
if not hasattr(self, "expires"):
961
self.expires = (datetime.datetime.utcnow()
962
+ self.timeout)
963
else:
964
self.last_enabled = None
965
self.expires = None
966
520
967
521
logger.debug("Creating client %r", self.name)
968
logger.debug(" Key ID: %s", self.key_id)
522
# Uppercase and remove spaces from fingerprint for later
523
# comparison purposes with return value from the fingerprint()
524
# function
969
525
logger.debug(" Fingerprint: %s", self.fingerprint)
970
self.created = settings.get("created",
971
datetime.datetime.utcnow())
526
self.created = settings.get("created", datetime.datetime.utcnow())
972
527
973
528
# attributes specific for this server instance
974
529
self.checker = None
978
533
self.current_checker_command = None
979
534
self.approved = None
980
535
self.approvals_pending = 0
981
self.changedstate = multiprocessing_manager.Condition(
982
multiprocessing_manager.Lock())
983
self.client_structure = [attr
984
for attr in self.__dict__.keys()
536
self.changedstate = (multiprocessing_manager
537
.Condition(multiprocessing_manager
538
.Lock()))
539
self.client_structure = [attr for attr in
540
self.__dict__.iterkeys()
985
541
if not attr.startswith("_")]
986
542
self.client_structure.append("client_structure")
987
988
for name, t in inspect.getmembers(
989
type(self), lambda obj: isinstance(obj, property)):
543
544
for name, t in inspect.getmembers(type(self),
545
lambda obj:
546
isinstance(obj,
547
property)):
990
548
if not name.startswith("_"):
991
549
self.client_structure.append(name)
992
550
993
551
# Send notice to process children that client state has changed
994
552
def send_changedstate(self):
995
553
with self.changedstate:
996
554
self.changedstate.notify_all()
997
555
998
556
def enable(self):
999
557
"""Start this client's checker and timeout hooks"""
1000
558
if getattr(self, "enabled", False):
1001
559
# Already enabled
1002
560
return
561
self.send_changedstate()
1003
562
self.expires = datetime.datetime.utcnow() + self.timeout
1004
563
self.enabled = True
1005
564
self.last_enabled = datetime.datetime.utcnow()
1006
565
self.init_checker()
1007
self.send_changedstate()
1008
566
1009
567
def disable(self, quiet=True):
1010
568
"""Disable this client."""
1011
569
if not getattr(self, "enabled", False):
1012
570
return False
1013
571
if not quiet:
572
self.send_changedstate()
573
if not quiet:
1014
574
logger.info("Disabling client %s", self.name)
1015
if getattr(self, "disable_initiator_tag", None) is not None:
1016
GLib.source_remove(self.disable_initiator_tag)
575
if getattr(self, "disable_initiator_tag", False):
576
gobject.source_remove(self.disable_initiator_tag)
1017
577
self.disable_initiator_tag = None
1018
578
self.expires = None
1019
if getattr(self, "checker_initiator_tag", None) is not None:
1020
GLib.source_remove(self.checker_initiator_tag)
579
if getattr(self, "checker_initiator_tag", False):
580
gobject.source_remove(self.checker_initiator_tag)
1021
581
self.checker_initiator_tag = None
1022
582
self.stop_checker()
1023
583
self.enabled = False
1024
if not quiet:
1025
self.send_changedstate()
1026
# Do not run this again if called by a GLib.timeout_add
584
# Do not run this again if called by a gobject.timeout_add
1027
585
return False
1028
586
1029
587
def __del__(self):
1030
588
self.disable()
1031
589
1032
590
def init_checker(self):
1033
591
# Schedule a new checker to be started an 'interval' from now,
1034
592
# and every interval from then on.
1035
if self.checker_initiator_tag is not None:
1036
GLib.source_remove(self.checker_initiator_tag)
1037
self.checker_initiator_tag = GLib.timeout_add(
1038
int(self.interval.total_seconds() * 1000),
1039
self.start_checker)
593
self.checker_initiator_tag = (gobject.timeout_add
594
(self.interval_milliseconds(),
595
self.start_checker))
1040
596
# Schedule a disable() when 'timeout' has passed
1041
if self.disable_initiator_tag is not None:
1042
GLib.source_remove(self.disable_initiator_tag)
1043
self.disable_initiator_tag = GLib.timeout_add(
1044
int(self.timeout.total_seconds() * 1000), self.disable)
597
self.disable_initiator_tag = (gobject.timeout_add
598
(self.timeout_milliseconds(),
599
self.disable))
1045
600
# Also start a new checker *right now*.
1046
601
self.start_checker()
1047
1048
def checker_callback(self, source, condition, connection,
1049
command):
602
603
def checker_callback(self, pid, condition, command):
1050
604
"""The checker has completed, so take appropriate actions."""
1051
# Read return code from connection (see call_pipe)
1052
returncode = connection.recv()
1053
connection.close()
1054
if self.checker is not None:
1055
self.checker.join()
1056
605
self.checker_callback_tag = None
1057
606
self.checker = None
1058
1059
if returncode >= 0:
1060
self.last_checker_status = returncode
1061
self.last_checker_signal = None
607
if os.WIFEXITED(condition):
608
self.last_checker_status = os.WEXITSTATUS(condition)
1062
609
if self.last_checker_status == 0:
1063
610
logger.info("Checker for %(name)s succeeded",
1064
611
vars(self))
1065
612
self.checked_ok()
1066
613
else:
1067
logger.info("Checker for %(name)s failed", vars(self))
614
logger.info("Checker for %(name)s failed",
615
vars(self))
1068
616
else:
1069
617
self.last_checker_status = -1
1070
self.last_checker_signal = -returncode
1071
618
logger.warning("Checker for %(name)s crashed?",
1072
619
vars(self))
1073
return False
1074
1075
def checked_ok(self):
1076
"""Assert that the client has been seen, alive and well."""
1077
self.last_checked_ok = datetime.datetime.utcnow()
1078
self.last_checker_status = 0
1079
self.last_checker_signal = None
1080
self.bump_timeout()
1081
1082
def bump_timeout(self, timeout=None):
1083
"""Bump up the timeout for this client."""
620
621
def checked_ok(self, timeout=None):
622
"""Bump up the timeout for this client.
623
624
This should only be called when the client has been seen,
625
alive and well.
626
"""
1084
627
if timeout is None:
1085
628
timeout = self.timeout
629
self.last_checked_ok = datetime.datetime.utcnow()
1086
630
if self.disable_initiator_tag is not None:
1087
GLib.source_remove(self.disable_initiator_tag)
1088
self.disable_initiator_tag = None
631
gobject.source_remove(self.disable_initiator_tag)
1089
632
if getattr(self, "enabled", False):
1090
self.disable_initiator_tag = GLib.timeout_add(
1091
int(timeout.total_seconds() * 1000), self.disable)
633
self.disable_initiator_tag = (gobject.timeout_add
634
(timedelta_to_milliseconds
635
(timeout), self.disable))
1092
636
self.expires = datetime.datetime.utcnow() + timeout
1093
637
1094
638
def need_approval(self):
1095
639
self.last_approval_request = datetime.datetime.utcnow()
1096
640
1097
641
def start_checker(self):
1098
642
"""Start a new checker subprocess if one is not running.
1099
643
1100
644
If a checker already exists, leave it running and do
1101
645
nothing."""
1102
646
# The reason for not killing a running checker is that if we
1103
# did that, and if a checker (for some reason) started running
1104
# slowly and taking more than 'interval' time, then the client
1105
# would inevitably timeout, since no checker would get a
1106
# chance to run to completion. If we instead leave running
647
# did that, then if a checker (for some reason) started
648
# running slowly and taking more than 'interval' time, the
649
# client would inevitably timeout, since no checker would get
650
# a chance to run to completion. If we instead leave running
1107
651
# checkers alone, the checker would have to take more time
1108
652
# than 'timeout' for the client to be disabled, which is as it
1109
653
# should be.
1110
1111
if self.checker is not None and not self.checker.is_alive():
1112
logger.warning("Checker was not alive; joining")
1113
self.checker.join()
1114
self.checker = None
654
655
# If a checker exists, make sure it is not a zombie
656
try:
657
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
658
except (AttributeError, OSError) as error:
659
if (isinstance(error, OSError)
660
and error.errno != errno.ECHILD):
661
raise error
662
else:
663
if pid:
664
logger.warning("Checker was a zombie")
665
gobject.source_remove(self.checker_callback_tag)
666
self.checker_callback(pid, status,
667
self.current_checker_command)
1115
668
# Start a new checker if needed
1116
669
if self.checker is None:
1117
# Escape attributes for the shell
1118
escaped_attrs = {
1119
attr: re.escape(str(getattr(self, attr)))
1120
for attr in self.runtime_expansions}
1121
670
try:
1122
command = self.checker_command % escaped_attrs
1123
except TypeError as error:
1124
logger.error('Could not format string "%s"',
1125
self.checker_command,
1126
exc_info=error)
1127
return True # Try again later
671
# In case checker_command has exactly one % operator
672
command = self.checker_command % self.host
673
except TypeError:
674
# Escape attributes for the shell
675
escaped_attrs = dict(
676
(attr,
677
re.escape(unicode(str(getattr(self, attr, "")),
678
errors=
679
'replace')))
680
for attr in
681
self.runtime_expansions)
682
683
try:
684
command = self.checker_command % escaped_attrs
685
except TypeError as error:
686
logger.error('Could not format string "%s":'
687
' %s', self.checker_command, error)
688
return True # Try again later
1128
689
self.current_checker_command = command
1129
logger.info("Starting checker %r for %s", command,
1130
self.name)
1131
# We don't need to redirect stdout and stderr, since
1132
# in normal mode, that is already done by daemon(),
1133
# and in debug mode we don't want to. (Stdin is
1134
# always replaced by /dev/null.)
1135
# The exception is when not debugging but nevertheless
1136
# running in the foreground; use the previously
1137
# created wnull.
1138
popen_args = {"close_fds": True,
1139
"shell": True,
1140
"cwd": "/"}
1141
if (not self.server_settings["debug"]
1142
and self.server_settings["foreground"]):
1143
popen_args.update({"stdout": wnull,
1144
"stderr": wnull})
1145
pipe = multiprocessing.Pipe(duplex=False)
1146
self.checker = multiprocessing.Process(
1147
target=call_pipe,
1148
args=(pipe[1], subprocess.call, command),
1149
kwargs=popen_args)
1150
self.checker.start()
1151
self.checker_callback_tag = GLib.io_add_watch(
1152
GLib.IOChannel.unix_new(pipe[0].fileno()),
1153
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1154
self.checker_callback, pipe[0], command)
1155
# Re-run this periodically if run by GLib.timeout_add
690
try:
691
logger.info("Starting checker %r for %s",
692
command, self.name)
693
# We don't need to redirect stdout and stderr, since
694
# in normal mode, that is already done by daemon(),
695
# and in debug mode we don't want to. (Stdin is
696
# always replaced by /dev/null.)
697
self.checker = subprocess.Popen(command,
698
close_fds=True,
699
shell=True, cwd="/")
700
self.checker_callback_tag = (gobject.child_watch_add
701
(self.checker.pid,
702
self.checker_callback,
703
data=command))
704
# The checker may have completed before the gobject
705
# watch was added. Check for this.
706
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
707
if pid:
708
gobject.source_remove(self.checker_callback_tag)
709
self.checker_callback(pid, status, command)
710
except OSError as error:
711
logger.error("Failed to start subprocess: %s",
712
error)
713
# Re-run this periodically if run by gobject.timeout_add
1156
714
return True
1157
715
1158
716
def stop_checker(self):
1159
717
"""Force the checker process, if any, to stop."""
1160
718
if self.checker_callback_tag:
1161
GLib.source_remove(self.checker_callback_tag)
719
gobject.source_remove(self.checker_callback_tag)
1162
720
self.checker_callback_tag = None
1163
721
if getattr(self, "checker", None) is None:
1164
722
return
1165
723
logger.debug("Stopping checker for %(name)s", vars(self))
1166
self.checker.terminate()
724
try:
725
os.kill(self.checker.pid, signal.SIGTERM)
726
#time.sleep(0.5)
727
#if self.checker.poll() is None:
728
# os.kill(self.checker.pid, signal.SIGKILL)
729
except OSError as error:
730
if error.errno != errno.ESRCH: # No such process
731
raise
1167
732
self.checker = None
1168
733
1169
734
1170
def dbus_service_property(dbus_interface,
1171
signature="v",
1172
access="readwrite",
1173
byte_arrays=False):
735
def dbus_service_property(dbus_interface, signature="v",
736
access="readwrite", byte_arrays=False):
1174
737
"""Decorators for marking methods of a DBusObjectWithProperties to
1175
738
become properties on the D-Bus.
1176
739
1177
740
The decorated method will be called with no arguments by "Get"
1178
741
and with one argument by "Set".
1179
742
1180
743
The parameters, where they are supported, are the same as
1181
744
dbus.service.method, except there is only "signature", since the
1182
745
type from Get() and the type sent to Set() is the same.
1185
748
# "Set" method, so we fail early here:
1186
749
if byte_arrays and signature != "ay":
1187
750
raise ValueError("Byte arrays not supported for non-'ay'"
1188
" signature {!r}".format(signature))
1189
751
" signature %r" % signature)
1190
752
def decorator(func):
1191
753
func._dbus_is_property = True
1192
754
func._dbus_interface = dbus_interface
1195
757
func._dbus_name = func.__name__
1196
758
if func._dbus_name.endswith("_dbus_property"):
1197
759
func._dbus_name = func._dbus_name[:-14]
1198
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1199
return func
1200
1201
return decorator
1202
1203
1204
def dbus_interface_annotations(dbus_interface):
1205
"""Decorator for marking functions returning interface annotations
1206
1207
Usage:
1208
1209
@dbus_interface_annotations("org.example.Interface")
1210
def _foo(self): # Function name does not matter
1211
return {"org.freedesktop.DBus.Deprecated": "true",
1212
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1213
"false"}
1214
"""
1215
1216
def decorator(func):
1217
func._dbus_is_interface = True
1218
func._dbus_interface = dbus_interface
1219
func._dbus_name = dbus_interface
1220
return func
1221
1222
return decorator
1223
1224
1225
def dbus_annotations(annotations):
1226
"""Decorator to annotate D-Bus methods, signals or properties
1227
Usage:
1228
1229
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1230
"org.freedesktop.DBus.Property."
1231
"EmitsChangedSignal": "false"})
1232
@dbus_service_property("org.example.Interface", signature="b",
1233
access="r")
1234
def Property_dbus_property(self):
1235
return dbus.Boolean(False)
1236
1237
See also the DBusObjectWithAnnotations class.
1238
"""
1239
1240
def decorator(func):
1241
func._dbus_annotations = annotations
1242
return func
1243
760
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
761
return func
1244
762
return decorator
1245
763
1246
764
1247
765
class DBusPropertyException(dbus.exceptions.DBusException):
1248
766
"""A base class for D-Bus property-related exceptions
1249
767
"""
1250
pass
768
def __unicode__(self):
769
return unicode(str(self))
1251
770
1252
771
1253
772
class DBusPropertyAccessException(DBusPropertyException):
1262
781
pass
1263
782
1264
783
1265
class DBusObjectWithAnnotations(dbus.service.Object):
1266
"""A D-Bus object with annotations.
1267
1268
Classes inheriting from this can use the dbus_annotations
1269
decorator to add annotations to methods or signals.
1270
"""
1271
1272
@staticmethod
1273
def _is_dbus_thing(thing):
1274
"""Returns a function testing if an attribute is a D-Bus thing
1275
1276
If called like _is_dbus_thing("method") it returns a function
1277
suitable for use as predicate to inspect.getmembers().
1278
"""
1279
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1280
False)
1281
1282
def _get_all_dbus_things(self, thing):
1283
"""Returns a generator of (name, attribute) pairs
1284
"""
1285
return ((getattr(athing.__get__(self), "_dbus_name", name),
1286
athing.__get__(self))
1287
for cls in self.__class__.__mro__
1288
for name, athing in
1289
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1290
1291
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1292
out_signature="s",
1293
path_keyword='object_path',
1294
connection_keyword='connection')
1295
def Introspect(self, object_path, connection):
1296
"""Overloading of standard D-Bus method.
1297
1298
Inserts annotation tags on methods and signals.
1299
"""
1300
xmlstring = dbus.service.Object.Introspect(self, object_path,
1301
connection)
1302
try:
1303
document = xml.dom.minidom.parseString(xmlstring)
1304
1305
for if_tag in document.getElementsByTagName("interface"):
1306
# Add annotation tags
1307
for typ in ("method", "signal"):
1308
for tag in if_tag.getElementsByTagName(typ):
1309
annots = dict()
1310
for name, prop in (self.
1311
_get_all_dbus_things(typ)):
1312
if (name == tag.getAttribute("name")
1313
and prop._dbus_interface
1314
== if_tag.getAttribute("name")):
1315
annots.update(getattr(
1316
prop, "_dbus_annotations", {}))
1317
for name, value in annots.items():
1318
ann_tag = document.createElement(
1319
"annotation")
1320
ann_tag.setAttribute("name", name)
1321
ann_tag.setAttribute("value", value)
1322
tag.appendChild(ann_tag)
1323
# Add interface annotation tags
1324
for annotation, value in dict(
1325
itertools.chain.from_iterable(
1326
annotations().items()
1327
for name, annotations
1328
in self._get_all_dbus_things("interface")
1329
if name == if_tag.getAttribute("name")
1330
)).items():
1331
ann_tag = document.createElement("annotation")
1332
ann_tag.setAttribute("name", annotation)
1333
ann_tag.setAttribute("value", value)
1334
if_tag.appendChild(ann_tag)
1335
# Fix argument name for the Introspect method itself
1336
if (if_tag.getAttribute("name")
1337
== dbus.INTROSPECTABLE_IFACE):
1338
for cn in if_tag.getElementsByTagName("method"):
1339
if cn.getAttribute("name") == "Introspect":
1340
for arg in cn.getElementsByTagName("arg"):
1341
if (arg.getAttribute("direction")
1342
== "out"):
1343
arg.setAttribute("name",
1344
"xml_data")
1345
xmlstring = document.toxml("utf-8")
1346
document.unlink()
1347
except (AttributeError, xml.dom.DOMException,
1348
xml.parsers.expat.ExpatError) as error:
1349
logger.error("Failed to override Introspection method",
1350
exc_info=error)
1351
return xmlstring
1352
1353
1354
class DBusObjectWithProperties(DBusObjectWithAnnotations):
784
class DBusObjectWithProperties(dbus.service.Object):
1355
785
"""A D-Bus object with properties.
1356
786
1357
787
Classes inheriting from this can use the dbus_service_property
1358
788
decorator to expose methods as D-Bus properties. It exposes the
1359
789
standard Get(), Set(), and GetAll() methods on the D-Bus.
1360
790
"""
1361
791
792
@staticmethod
793
def _is_dbus_property(obj):
794
return getattr(obj, "_dbus_is_property", False)
795
796
def _get_all_dbus_properties(self):
797
"""Returns a generator of (name, attribute) pairs
798
"""
799
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
800
for cls in self.__class__.__mro__
801
for name, prop in
802
inspect.getmembers(cls, self._is_dbus_property))
803
1362
804
def _get_dbus_property(self, interface_name, property_name):
1363
805
"""Returns a bound method if one exists which is a D-Bus
1364
806
property with the specified name and interface.
1365
807
"""
1366
for cls in self.__class__.__mro__:
1367
for name, value in inspect.getmembers(
1368
cls, self._is_dbus_thing("property")):
808
for cls in self.__class__.__mro__:
809
for name, value in (inspect.getmembers
810
(cls, self._is_dbus_property)):
1369
811
if (value._dbus_name == property_name
1370
812
and value._dbus_interface == interface_name):
1371
813
return value.__get__(self)
1372
814
1373
815
# No such property
1374
raise DBusPropertyNotFound("{}:{}.{}".format(
1375
self.dbus_object_path, interface_name, property_name))
1376
1377
@classmethod
1378
def _get_all_interface_names(cls):
1379
"""Get a sequence of all interfaces supported by an object"""
1380
return (name for name in set(getattr(getattr(x, attr),
1381
"_dbus_interface", None)
1382
for x in (inspect.getmro(cls))
1383
for attr in dir(x))
1384
if name is not None)
1385
1386
@dbus.service.method(dbus.PROPERTIES_IFACE,
1387
in_signature="ss",
816
raise DBusPropertyNotFound(self.dbus_object_path + ":"
817
+ interface_name + "."
818
+ property_name)
819
820
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1388
821
out_signature="v")
1389
822
def Get(self, interface_name, property_name):
1390
823
"""Standard D-Bus property Get() method, see D-Bus standard.
1396
829
if not hasattr(value, "variant_level"):
1397
830
return value
1398
831
return type(value)(value, variant_level=value.variant_level+1)
1399
832
1400
833
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1401
834
def Set(self, interface_name, property_name, value):
1402
835
"""Standard D-Bus property Set() method, see D-Bus standard.
1408
841
# The byte_arrays option is not supported yet on
1409
842
# signatures other than "ay".
1410
843
if prop._dbus_signature != "ay":
1411
raise ValueError("Byte arrays not supported for non-"
1412
"'ay' signature {!r}"
1413
.format(prop._dbus_signature))
1414
value = dbus.ByteArray(bytes(value))
844
raise ValueError
845
value = dbus.ByteArray(''.join(unichr(byte)
846
for byte in value))
1415
847
prop(value)
1416
1417
@dbus.service.method(dbus.PROPERTIES_IFACE,
1418
in_signature="s",
848
849
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1419
850
out_signature="a{sv}")
1420
851
def GetAll(self, interface_name):
1421
852
"""Standard D-Bus property GetAll() method, see D-Bus
1422
853
standard.
1423
854
1424
855
Note: Will not include properties with access="write".
1425
856
"""
1426
857
properties = {}
1427
for name, prop in self._get_all_dbus_things("property"):
858
for name, prop in self._get_all_dbus_properties():
1428
859
if (interface_name
1429
860
and interface_name != prop._dbus_interface):
1430
861
# Interface non-empty but did not match
1436
867
if not hasattr(value, "variant_level"):
1437
868
properties[name] = value
1438
869
continue
1439
properties[name] = type(value)(
1440
value, variant_level=value.variant_level + 1)
870
properties[name] = type(value)(value, variant_level=
871
value.variant_level+1)
1441
872
return dbus.Dictionary(properties, signature="sv")
1442
1443
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1444
def PropertiesChanged(self, interface_name, changed_properties,
1445
invalidated_properties):
1446
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1447
standard.
1448
"""
1449
pass
1450
873
1451
874
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1452
875
out_signature="s",
1453
876
path_keyword='object_path',
1454
877
connection_keyword='connection')
1455
878
def Introspect(self, object_path, connection):
1456
"""Overloading of standard D-Bus method.
1457
1458
Inserts property tags and interface annotation tags.
879
"""Standard D-Bus method, overloaded to insert property tags.
1459
880
"""
1460
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1461
object_path,
1462
connection)
881
xmlstring = dbus.service.Object.Introspect(self, object_path,
882
connection)
1463
883
try:
1464
884
document = xml.dom.minidom.parseString(xmlstring)
1465
1466
885
def make_tag(document, name, prop):
1467
886
e = document.createElement("property")
1468
887
e.setAttribute("name", name)
1469
888
e.setAttribute("type", prop._dbus_signature)
1470
889
e.setAttribute("access", prop._dbus_access)
1471
890
return e
1472
1473
891
for if_tag in document.getElementsByTagName("interface"):
1474
# Add property tags
1475
892
for tag in (make_tag(document, name, prop)
1476
893
for name, prop
1477
in self._get_all_dbus_things("property")
894
in self._get_all_dbus_properties()
1478
895
if prop._dbus_interface
1479
896
== if_tag.getAttribute("name")):
1480
897
if_tag.appendChild(tag)
1481
# Add annotation tags for properties
1482
for tag in if_tag.getElementsByTagName("property"):
1483
annots = dict()
1484
for name, prop in self._get_all_dbus_things(
1485
"property"):
1486
if (name == tag.getAttribute("name")
1487
and prop._dbus_interface
1488
== if_tag.getAttribute("name")):
1489
annots.update(getattr(
1490
prop, "_dbus_annotations", {}))
1491
for name, value in annots.items():
1492
ann_tag = document.createElement(
1493
"annotation")
1494
ann_tag.setAttribute("name", name)
1495
ann_tag.setAttribute("value", value)
1496
tag.appendChild(ann_tag)
1497
898
# Add the names to the return values for the
1498
899
# "org.freedesktop.DBus.Properties" methods
1499
900
if (if_tag.getAttribute("name")
1514
915
except (AttributeError, xml.dom.DOMException,
1515
916
xml.parsers.expat.ExpatError) as error:
1516
917
logger.error("Failed to override Introspection method",
1517
exc_info=error)
1518
return xmlstring
1519
1520
1521
try:
1522
dbus.OBJECT_MANAGER_IFACE
1523
except AttributeError:
1524
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1525
1526
1527
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1528
"""A D-Bus object with an ObjectManager.
1529
1530
Classes inheriting from this exposes the standard
1531
GetManagedObjects call and the InterfacesAdded and
1532
InterfacesRemoved signals on the standard
1533
"org.freedesktop.DBus.ObjectManager" interface.
1534
1535
Note: No signals are sent automatically; they must be sent
1536
manually.
1537
"""
1538
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1539
out_signature="a{oa{sa{sv}}}")
1540
def GetManagedObjects(self):
1541
"""This function must be overridden"""
1542
raise NotImplementedError()
1543
1544
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1545
signature="oa{sa{sv}}")
1546
def InterfacesAdded(self, object_path, interfaces_and_properties):
1547
pass
1548
1549
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1550
def InterfacesRemoved(self, object_path, interfaces):
1551
pass
1552
1553
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1554
out_signature="s",
1555
path_keyword='object_path',
1556
connection_keyword='connection')
1557
def Introspect(self, object_path, connection):
1558
"""Overloading of standard D-Bus method.
1559
1560
Override return argument name of GetManagedObjects to be
1561
"objpath_interfaces_and_properties"
1562
"""
1563
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1564
object_path,
1565
connection)
1566
try:
1567
document = xml.dom.minidom.parseString(xmlstring)
1568
1569
for if_tag in document.getElementsByTagName("interface"):
1570
# Fix argument name for the GetManagedObjects method
1571
if (if_tag.getAttribute("name")
1572
== dbus.OBJECT_MANAGER_IFACE):
1573
for cn in if_tag.getElementsByTagName("method"):
1574
if (cn.getAttribute("name")
1575
== "GetManagedObjects"):
1576
for arg in cn.getElementsByTagName("arg"):
1577
if (arg.getAttribute("direction")
1578
== "out"):
1579
arg.setAttribute(
1580
"name",
1581
"objpath_interfaces"
1582
"_and_properties")
1583
xmlstring = document.toxml("utf-8")
1584
document.unlink()
1585
except (AttributeError, xml.dom.DOMException,
1586
xml.parsers.expat.ExpatError) as error:
1587
logger.error("Failed to override Introspection method",
1588
exc_info=error)
1589
return xmlstring
1590
1591
1592
def datetime_to_dbus(dt, variant_level=0):
918
error)
919
return xmlstring
920
921
922
def datetime_to_dbus (dt, variant_level=0):
1593
923
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1594
924
if dt is None:
1595
return dbus.String("", variant_level=variant_level)
1596
return dbus.String(dt.isoformat(), variant_level=variant_level)
1597
1598
1599
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1600
"""A class decorator; applied to a subclass of
1601
dbus.service.Object, it will add alternate D-Bus attributes with
1602
interface names according to the "alt_interface_names" mapping.
1603
Usage:
1604
1605
@alternate_dbus_interfaces({"org.example.Interface":
1606
"net.example.AlternateInterface"})
1607
class SampleDBusObject(dbus.service.Object):
1608
@dbus.service.method("org.example.Interface")
1609
def SampleDBusMethod():
1610
pass
1611
1612
The above "SampleDBusMethod" on "SampleDBusObject" will be
1613
reachable via two interfaces: "org.example.Interface" and
1614
"net.example.AlternateInterface", the latter of which will have
1615
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1616
"true", unless "deprecate" is passed with a False value.
1617
1618
This works for methods and signals, and also for D-Bus properties
1619
(from DBusObjectWithProperties) and interfaces (from the
1620
dbus_interface_annotations decorator).
925
return dbus.String("", variant_level = variant_level)
926
return dbus.String(dt.isoformat(),
927
variant_level=variant_level)
928
929
930
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
931
.__metaclass__):
932
"""Applied to an empty subclass of a D-Bus object, this metaclass
933
will add additional D-Bus attributes matching a certain pattern.
1621
934
"""
1622
1623
def wrapper(cls):
1624
for orig_interface_name, alt_interface_name in (
1625
alt_interface_names.items()):
1626
attr = {}
1627
interface_names = set()
1628
# Go though all attributes of the class
1629
for attrname, attribute in inspect.getmembers(cls):
935
def __new__(mcs, name, bases, attr):
936
# Go through all the base classes which could have D-Bus
937
# methods, signals, or properties in them
938
for base in (b for b in bases
939
if issubclass(b, dbus.service.Object)):
940
# Go though all attributes of the base class
941
for attrname, attribute in inspect.getmembers(base):
1630
942
# Ignore non-D-Bus attributes, and D-Bus attributes
1631
943
# with the wrong interface name
1632
944
if (not hasattr(attribute, "_dbus_interface")
1633
or not attribute._dbus_interface.startswith(
1634
orig_interface_name)):
945
or not attribute._dbus_interface
946
.startswith("se.recompile.Mandos")):
1635
947
continue
1636
948
# Create an alternate D-Bus interface name based on
1637
949
# the current name
1638
alt_interface = attribute._dbus_interface.replace(
1639
orig_interface_name, alt_interface_name)
1640
interface_names.add(alt_interface)
950
alt_interface = (attribute._dbus_interface
951
.replace("se.recompile.Mandos",
952
"se.bsnet.fukt.Mandos"))
1641
953
# Is this a D-Bus signal?
1642
954
if getattr(attribute, "_dbus_is_signal", False):
1643
# Extract the original non-method undecorated
1644
# function by black magic
1645
if sys.version_info.major == 2:
1646
nonmethod_func = (dict(
955
# Extract the original non-method function by
956
# black magic
957
nonmethod_func = (dict(
1647
958
zip(attribute.func_code.co_freevars,
1648
attribute.__closure__))
1649
["func"].cell_contents)
1650
else:
1651
nonmethod_func = (dict(
1652
zip(attribute.__code__.co_freevars,
1653
attribute.__closure__))
1654
["func"].cell_contents)
959
attribute.__closure__))["func"]
960
.cell_contents)
1655
961
# Create a new, but exactly alike, function
1656
962
# object, and decorate it to be a new D-Bus signal
1657
963
# with the alternate D-Bus interface name
1658
new_function = copy_function(nonmethod_func)
1659
new_function = (dbus.service.signal(
1660
alt_interface,
1661
attribute._dbus_signature)(new_function))
1662
# Copy annotations, if any
1663
try:
1664
new_function._dbus_annotations = dict(
1665
attribute._dbus_annotations)
1666
except AttributeError:
1667
pass
1668
964
new_function = (dbus.service.signal
965
(alt_interface,
966
attribute._dbus_signature)
967
(types.FunctionType(
968
nonmethod_func.func_code,
969
nonmethod_func.func_globals,
970
nonmethod_func.func_name,
971
nonmethod_func.func_defaults,
972
nonmethod_func.func_closure)))
1669
973
# Define a creator of a function to call both the
1670
# original and alternate functions, so both the
1671
# original and alternate signals gets sent when
1672
# the function is called
974
# old and new functions, so both the old and new
975
# signals gets sent when the function is called
1673
976
def fixscope(func1, func2):
1674
977
"""This function is a scope container to pass
1675
978
func1 and func2 to the "call_both" function
1676
979
outside of its arguments"""
1677
1678
@functools.wraps(func2)
1679
980
def call_both(*args, **kwargs):
1680
981
"""This function will emit two D-Bus
1681
982
signals by calling func1 and func2"""
1682
983
func1(*args, **kwargs)
1683
984
func2(*args, **kwargs)
1684
# Make wrapper function look like a D-Bus
1685
# signal
1686
for name, attr in inspect.getmembers(func2):
1687
if name.startswith("_dbus_"):
1688
setattr(call_both, name, attr)
1689
1690
985
return call_both
1691
986
# Create the "call_both" function and add it to
1692
987
# the class
1693
attr[attrname] = fixscope(attribute, new_function)
988
attr[attrname] = fixscope(attribute,
989
new_function)
1694
990
# Is this a D-Bus method?
1695
991
elif getattr(attribute, "_dbus_is_method", False):
1696
992
# Create a new, but exactly alike, function
1697
993
# object. Decorate it to be a new D-Bus method
1698
994
# with the alternate D-Bus interface name. Add it
1699
995
# to the class.
1700
attr[attrname] = (
1701
dbus.service.method(
1702
alt_interface,
1703
attribute._dbus_in_signature,
1704
attribute._dbus_out_signature)
1705
(copy_function(attribute)))
1706
# Copy annotations, if any
1707
try:
1708
attr[attrname]._dbus_annotations = dict(
1709
attribute._dbus_annotations)
1710
except AttributeError:
1711
pass
996
attr[attrname] = (dbus.service.method
997
(alt_interface,
998
attribute._dbus_in_signature,
999
attribute._dbus_out_signature)
1000
(types.FunctionType
1001
(attribute.func_code,
1002
attribute.func_globals,
1003
attribute.func_name,
1004
attribute.func_defaults,
1005
attribute.func_closure)))
1712
1006
# Is this a D-Bus property?
1713
1007
elif getattr(attribute, "_dbus_is_property", False):
1714
1008
# Create a new, but exactly alike, function
1715
1009
# object, and decorate it to be a new D-Bus
1716
1010
# property with the alternate D-Bus interface
1717
1011
# name. Add it to the class.
1718
attr[attrname] = (dbus_service_property(
1719
alt_interface, attribute._dbus_signature,
1720
attribute._dbus_access,
1721
attribute._dbus_get_args_options
1722
["byte_arrays"])
1723
(copy_function(attribute)))
1724
# Copy annotations, if any
1725
try:
1726
attr[attrname]._dbus_annotations = dict(
1727
attribute._dbus_annotations)
1728
except AttributeError:
1729
pass
1730
# Is this a D-Bus interface?
1731
elif getattr(attribute, "_dbus_is_interface", False):
1732
# Create a new, but exactly alike, function
1733
# object. Decorate it to be a new D-Bus interface
1734
# with the alternate D-Bus interface name. Add it
1735
# to the class.
1736
attr[attrname] = (
1737
dbus_interface_annotations(alt_interface)
1738
(copy_function(attribute)))
1739
if deprecate:
1740
# Deprecate all alternate interfaces
1741
iname = "_AlternateDBusNames_interface_annotation{}"
1742
for interface_name in interface_names:
1743
1744
@dbus_interface_annotations(interface_name)
1745
def func(self):
1746
return {"org.freedesktop.DBus.Deprecated":
1747
"true"}
1748
# Find an unused name
1749
for aname in (iname.format(i)
1750
for i in itertools.count()):
1751
if aname not in attr:
1752
attr[aname] = func
1753
break
1754
if interface_names:
1755
# Replace the class with a new subclass of it with
1756
# methods, signals, etc. as created above.
1757
if sys.version_info.major == 2:
1758
cls = type(b"{}Alternate".format(cls.__name__),
1759
(cls, ), attr)
1760
else:
1761
cls = type("{}Alternate".format(cls.__name__),
1762
(cls, ), attr)
1763
return cls
1764
1765
return wrapper
1766
1767
1768
@alternate_dbus_interfaces({"se.recompile.Mandos":
1769
"se.bsnet.fukt.Mandos"})
1012
attr[attrname] = (dbus_service_property
1013
(alt_interface,
1014
attribute._dbus_signature,
1015
attribute._dbus_access,
1016
attribute
1017
._dbus_get_args_options
1018
["byte_arrays"])
1019
(types.FunctionType
1020
(attribute.func_code,
1021
attribute.func_globals,
1022
attribute.func_name,
1023
attribute.func_defaults,
1024
attribute.func_closure)))
1025
return type.__new__(mcs, name, bases, attr)
1026
1027
1770
1028
class ClientDBus(Client, DBusObjectWithProperties):
1771
1029
"""A Client class using D-Bus
1772
1030
1773
1031
Attributes:
1774
1032
dbus_object_path: dbus.ObjectPath
1775
1033
bus: dbus.SystemBus()
1776
1034
"""
1777
1035
1778
1036
runtime_expansions = (Client.runtime_expansions
1779
+ ("dbus_object_path", ))
1780
1781
_interface = "se.recompile.Mandos.Client"
1782
1037
+ ("dbus_object_path",))
1038
1783
1039
# dbus.service.Object doesn't use super(), so we can't either.
1784
1785
def __init__(self, bus=None, *args, **kwargs):
1040
1041
def __init__(self, bus = None, *args, **kwargs):
1786
1042
self.bus = bus
1787
1043
Client.__init__(self, *args, **kwargs)
1044
self._approvals_pending = 0
1045
1046
self._approvals_pending = 0
1788
1047
# Only now, when this client is initialized, can it show up on
1789
1048
# the D-Bus
1790
client_object_name = str(self.name).translate(
1049
client_object_name = unicode(self.name).translate(
1791
1050
{ord("."): ord("_"),
1792
1051
ord("-"): ord("_")})
1793
self.dbus_object_path = dbus.ObjectPath(
1794
"/clients/" + client_object_name)
1052
self.dbus_object_path = (dbus.ObjectPath
1053
("/clients/" + client_object_name))
1795
1054
DBusObjectWithProperties.__init__(self, self.bus,
1796
1055
self.dbus_object_path)
1797
1798
def notifychangeproperty(transform_func, dbus_name,
1799
type_func=lambda x: x,
1800
variant_level=1,
1801
invalidate_only=False,
1802
_interface=_interface):
1056
1057
def notifychangeproperty(transform_func,
1058
dbus_name, type_func=lambda x: x,
1059
variant_level=1):
1803
1060
""" Modify a variable so that it's a property which announces
1804
1061
its changes to DBus.
1805
1062
1806
1063
transform_fun: Function that takes a value and a variant_level
1807
1064
and transforms it to a D-Bus type.
1808
1065
dbus_name: D-Bus name of the variable
1810
1067
to the D-Bus. Default: no transform
1811
1068
variant_level: D-Bus variant level. Default: 1
1812
1069
"""
1813
attrname = "_{}".format(dbus_name)
1814
1070
attrname = "_{0}".format(dbus_name)
1815
1071
def setter(self, value):
1816
1072
if hasattr(self, "dbus_object_path"):
1817
1073
if (not hasattr(self, attrname) or
1818
1074
type_func(getattr(self, attrname, None))
1819
1075
!= type_func(value)):
1820
if invalidate_only:
1821
self.PropertiesChanged(
1822
_interface, dbus.Dictionary(),
1823
dbus.Array((dbus_name, )))
1824
else:
1825
dbus_value = transform_func(
1826
type_func(value),
1827
variant_level=variant_level)
1828
self.PropertyChanged(dbus.String(dbus_name),
1829
dbus_value)
1830
self.PropertiesChanged(
1831
_interface,
1832
dbus.Dictionary({dbus.String(dbus_name):
1833
dbus_value}),
1834
dbus.Array())
1076
dbus_value = transform_func(type_func(value),
1077
variant_level
1078
=variant_level)
1079
self.PropertyChanged(dbus.String(dbus_name),
1080
dbus_value)
1835
1081
setattr(self, attrname, value)
1836
1082
1837
1083
return property(lambda self: getattr(self, attrname), setter)
1838
1084
1085
1839
1086
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1840
1087
approvals_pending = notifychangeproperty(dbus.Boolean,
1841
1088
"ApprovalPending",
1842
type_func=bool)
1089
type_func = bool)
1843
1090
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1844
1091
last_enabled = notifychangeproperty(datetime_to_dbus,
1845
1092
"LastEnabled")
1846
checker = notifychangeproperty(
1847
dbus.Boolean, "CheckerRunning",
1848
type_func=lambda checker: checker is not None)
1093
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1094
type_func = lambda checker:
1095
checker is not None)
1849
1096
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1850
1097
"LastCheckedOK")
1851
last_checker_status = notifychangeproperty(dbus.Int16,
1852
"LastCheckerStatus")
1853
1098
last_approval_request = notifychangeproperty(
1854
1099
datetime_to_dbus, "LastApprovalRequest")
1855
1100
approved_by_default = notifychangeproperty(dbus.Boolean,
1856
1101
"ApprovedByDefault")
1857
approval_delay = notifychangeproperty(
1858
dbus.UInt64, "ApprovalDelay",
1859
type_func=lambda td: td.total_seconds() * 1000)
1102
approval_delay = notifychangeproperty(dbus.UInt64,
1103
"ApprovalDelay",
1104
type_func =
1105
timedelta_to_milliseconds)
1860
1106
approval_duration = notifychangeproperty(
1861
1107
dbus.UInt64, "ApprovalDuration",
1862
type_func=lambda td: td.total_seconds() * 1000)
1108
type_func = timedelta_to_milliseconds)
1863
1109
host = notifychangeproperty(dbus.String, "Host")
1864
timeout = notifychangeproperty(
1865
dbus.UInt64, "Timeout",
1866
type_func=lambda td: td.total_seconds() * 1000)
1110
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1111
type_func =
1112
timedelta_to_milliseconds)
1867
1113
extended_timeout = notifychangeproperty(
1868
1114
dbus.UInt64, "ExtendedTimeout",
1869
type_func=lambda td: td.total_seconds() * 1000)
1870
interval = notifychangeproperty(
1871
dbus.UInt64, "Interval",
1872
type_func=lambda td: td.total_seconds() * 1000)
1115
type_func = timedelta_to_milliseconds)
1116
interval = notifychangeproperty(dbus.UInt64,
1117
"Interval",
1118
type_func =
1119
timedelta_to_milliseconds)
1873
1120
checker_command = notifychangeproperty(dbus.String, "Checker")
1874
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1875
invalidate_only=True)
1876
1121
1877
1122
del notifychangeproperty
1878
1123
1879
1124
def __del__(self, *args, **kwargs):
1880
1125
try:
1881
1126
self.remove_from_connection()
1884
1129
if hasattr(DBusObjectWithProperties, "__del__"):
1885
1130
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1886
1131
Client.__del__(self, *args, **kwargs)
1887
1888
def checker_callback(self, source, condition,
1889
connection, command, *args, **kwargs):
1890
ret = Client.checker_callback(self, source, condition,
1891
connection, command, *args,
1892
**kwargs)
1893
exitstatus = self.last_checker_status
1894
if exitstatus >= 0:
1132
1133
def checker_callback(self, pid, condition, command,
1134
*args, **kwargs):
1135
self.checker_callback_tag = None
1136
self.checker = None
1137
if os.WIFEXITED(condition):
1138
exitstatus = os.WEXITSTATUS(condition)
1895
1139
# Emit D-Bus signal
1896
1140
self.CheckerCompleted(dbus.Int16(exitstatus),
1897
# This is specific to GNU libC
1898
dbus.Int64(exitstatus << 8),
1141
dbus.Int64(condition),
1899
1142
dbus.String(command))
1900
1143
else:
1901
1144
# Emit D-Bus signal
1902
1145
self.CheckerCompleted(dbus.Int16(-1),
1903
dbus.Int64(
1904
# This is specific to GNU libC
1905
(exitstatus << 8)
1906
| self.last_checker_signal),
1146
dbus.Int64(condition),
1907
1147
dbus.String(command))
1908
return ret
1909
1148
1149
return Client.checker_callback(self, pid, condition, command,
1150
*args, **kwargs)
1151
1910
1152
def start_checker(self, *args, **kwargs):
1911
old_checker_pid = getattr(self.checker, "pid", None)
1153
old_checker = self.checker
1154
if self.checker is not None:
1155
old_checker_pid = self.checker.pid
1156
else:
1157
old_checker_pid = None
1912
1158
r = Client.start_checker(self, *args, **kwargs)
1913
1159
# Only if new checker process was started
1914
1160
if (self.checker is not None
1916
1162
# Emit D-Bus signal
1917
1163
self.CheckerStarted(self.current_checker_command)
1918
1164
return r
1919
1165
1920
1166
def _reset_approved(self):
1921
1167
self.approved = None
1922
1168
return False
1923
1169
1924
1170
def approve(self, value=True):
1171
self.send_changedstate()
1925
1172
self.approved = value
1926
GLib.timeout_add(int(self.approval_duration.total_seconds()
1927
* 1000), self._reset_approved)
1928
self.send_changedstate()
1929
1930
# D-Bus methods, signals & properties
1931
1932
# Interfaces
1933
1934
# Signals
1935
1173
gobject.timeout_add(timedelta_to_milliseconds
1174
(self.approval_duration),
1175
self._reset_approved)
1176
1177
1178
## D-Bus methods, signals & properties
1179
_interface = "se.recompile.Mandos.Client"
1180
1181
## Signals
1182
1936
1183
# CheckerCompleted - signal
1937
1184
@dbus.service.signal(_interface, signature="nxs")
1938
1185
def CheckerCompleted(self, exitcode, waitstatus, command):
1939
1186
"D-Bus signal"
1940
1187
pass
1941
1188
1942
1189
# CheckerStarted - signal
1943
1190
@dbus.service.signal(_interface, signature="s")
1944
1191
def CheckerStarted(self, command):
1945
1192
"D-Bus signal"
1946
1193
pass
1947
1194
1948
1195
# PropertyChanged - signal
1949
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1950
1196
@dbus.service.signal(_interface, signature="sv")
1951
1197
def PropertyChanged(self, property, value):
1952
1198
"D-Bus signal"
1953
1199
pass
1954
1200
1955
1201
# GotSecret - signal
1956
1202
@dbus.service.signal(_interface)
1957
1203
def GotSecret(self):
1960
1206
server to mandos-client
1961
1207
"""
1962
1208
pass
1963
1209
1964
1210
# Rejected - signal
1965
1211
@dbus.service.signal(_interface, signature="s")
1966
1212
def Rejected(self, reason):
1967
1213
"D-Bus signal"
1968
1214
pass
1969
1215
1970
1216
# NeedApproval - signal
1971
1217
@dbus.service.signal(_interface, signature="tb")
1972
1218
def NeedApproval(self, timeout, default):
1973
1219
"D-Bus signal"
1974
1220
return self.need_approval()
1975
1976
# Methods
1977
1221
1222
# NeRwequest - signal
1223
@dbus.service.signal(_interface, signature="s")
1224
def NewRequest(self, ip):
1225
"""D-Bus signal
1226
Is sent after a client request a password.
1227
"""
1228
pass
1229
1230
## Methods
1231
1978
1232
# Approve - method
1979
1233
@dbus.service.method(_interface, in_signature="b")
1980
1234
def Approve(self, value):
1981
1235
self.approve(value)
1982
1236
1983
1237
# CheckedOK - method
1984
1238
@dbus.service.method(_interface)
1985
1239
def CheckedOK(self):
1986
1240
self.checked_ok()
1987
1241
1988
1242
# Enable - method
1989
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1990
1243
@dbus.service.method(_interface)
1991
1244
def Enable(self):
1992
1245
"D-Bus method"
1993
1246
self.enable()
1994
1247
1995
1248
# StartChecker - method
1996
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1997
1249
@dbus.service.method(_interface)
1998
1250
def StartChecker(self):
1999
1251
"D-Bus method"
2000
1252
self.start_checker()
2001
1253
2002
1254
# Disable - method
2003
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2004
1255
@dbus.service.method(_interface)
2005
1256
def Disable(self):
2006
1257
"D-Bus method"
2007
1258
self.disable()
2008
1259
2009
1260
# StopChecker - method
2010
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2011
1261
@dbus.service.method(_interface)
2012
1262
def StopChecker(self):
2013
1263
self.stop_checker()
2014
2015
# Properties
2016
1264
1265
## Properties
1266
2017
1267
# ApprovalPending - property
2018
1268
@dbus_service_property(_interface, signature="b", access="read")
2019
1269
def ApprovalPending_dbus_property(self):
2020
1270
return dbus.Boolean(bool(self.approvals_pending))
2021
1271
2022
1272
# ApprovedByDefault - property
2023
@dbus_service_property(_interface,
2024
signature="b",
1273
@dbus_service_property(_interface, signature="b",
2025
1274
access="readwrite")
2026
1275
def ApprovedByDefault_dbus_property(self, value=None):
2027
1276
if value is None: # get
2028
1277
return dbus.Boolean(self.approved_by_default)
2029
1278
self.approved_by_default = bool(value)
2030
1279
2031
1280
# ApprovalDelay - property
2032
@dbus_service_property(_interface,
2033
signature="t",
1281
@dbus_service_property(_interface, signature="t",
2034
1282
access="readwrite")
2035
1283
def ApprovalDelay_dbus_property(self, value=None):
2036
1284
if value is None: # get
2037
return dbus.UInt64(self.approval_delay.total_seconds()
2038
* 1000)
1285
return dbus.UInt64(self.approval_delay_milliseconds())
2039
1286
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2040
1287
2041
1288
# ApprovalDuration - property
2042
@dbus_service_property(_interface,
2043
signature="t",
1289
@dbus_service_property(_interface, signature="t",
2044
1290
access="readwrite")
2045
1291
def ApprovalDuration_dbus_property(self, value=None):
2046
1292
if value is None: # get
2047
return dbus.UInt64(self.approval_duration.total_seconds()
2048
* 1000)
1293
return dbus.UInt64(timedelta_to_milliseconds(
1294
self.approval_duration))
2049
1295
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2050
1296
2051
1297
# Name - property
2052
@dbus_annotations(
2053
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2054
1298
@dbus_service_property(_interface, signature="s", access="read")
2055
1299
def Name_dbus_property(self):
2056
1300
return dbus.String(self.name)
2057
2058
# KeyID - property
2059
@dbus_annotations(
2060
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2061
@dbus_service_property(_interface, signature="s", access="read")
2062
def KeyID_dbus_property(self):
2063
return dbus.String(self.key_id)
2064
1301
2065
1302
# Fingerprint - property
2066
@dbus_annotations(
2067
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2068
1303
@dbus_service_property(_interface, signature="s", access="read")
2069
1304
def Fingerprint_dbus_property(self):
2070
1305
return dbus.String(self.fingerprint)
2071
1306
2072
1307
# Host - property
2073
@dbus_service_property(_interface,
2074
signature="s",
1308
@dbus_service_property(_interface, signature="s",
2075
1309
access="readwrite")
2076
1310
def Host_dbus_property(self, value=None):
2077
1311
if value is None: # get
2078
1312
return dbus.String(self.host)
2079
self.host = str(value)
2080
1313
self.host = unicode(value)
1314
2081
1315
# Created - property
2082
@dbus_annotations(
2083
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2084
1316
@dbus_service_property(_interface, signature="s", access="read")
2085
1317
def Created_dbus_property(self):
2086
1318
return datetime_to_dbus(self.created)
2087
1319
2088
1320
# LastEnabled - property
2089
1321
@dbus_service_property(_interface, signature="s", access="read")
2090
1322
def LastEnabled_dbus_property(self):
2091
1323
return datetime_to_dbus(self.last_enabled)
2092
1324
2093
1325
# Enabled - property
2094
@dbus_service_property(_interface,
2095
signature="b",
1326
@dbus_service_property(_interface, signature="b",
2096
1327
access="readwrite")
2097
1328
def Enabled_dbus_property(self, value=None):
2098
1329
if value is None: # get
2101
1332
self.enable()
2102
1333
else:
2103
1334
self.disable()
2104
1335
2105
1336
# LastCheckedOK - property
2106
@dbus_service_property(_interface,
2107
signature="s",
1337
@dbus_service_property(_interface, signature="s",
2108
1338
access="readwrite")
2109
1339
def LastCheckedOK_dbus_property(self, value=None):
2110
1340
if value is not None:
2111
1341
self.checked_ok()
2112
1342
return
2113
1343
return datetime_to_dbus(self.last_checked_ok)
2114
2115
# LastCheckerStatus - property
2116
@dbus_service_property(_interface, signature="n", access="read")
2117
def LastCheckerStatus_dbus_property(self):
2118
return dbus.Int16(self.last_checker_status)
2119
1344
2120
1345
# Expires - property
2121
1346
@dbus_service_property(_interface, signature="s", access="read")
2122
1347
def Expires_dbus_property(self):
2123
1348
return datetime_to_dbus(self.expires)
2124
1349
2125
1350
# LastApprovalRequest - property
2126
1351
@dbus_service_property(_interface, signature="s", access="read")
2127
1352
def LastApprovalRequest_dbus_property(self):
2128
1353
return datetime_to_dbus(self.last_approval_request)
2129
1354
2130
1355
# Timeout - property
2131
@dbus_service_property(_interface,
2132
signature="t",
1356
@dbus_service_property(_interface, signature="t",
2133
1357
access="readwrite")
2134
1358
def Timeout_dbus_property(self, value=None):
2135
1359
if value is None: # get
2136
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2137
old_timeout = self.timeout
1360
return dbus.UInt64(self.timeout_milliseconds())
2138
1361
self.timeout = datetime.timedelta(0, 0, 0, value)
2139
# Reschedule disabling
2140
if self.enabled:
2141
now = datetime.datetime.utcnow()
2142
self.expires += self.timeout - old_timeout
2143
if self.expires <= now:
2144
# The timeout has passed
2145
self.disable()
2146
else:
2147
if (getattr(self, "disable_initiator_tag", None)
2148
is None):
2149
return
2150
GLib.source_remove(self.disable_initiator_tag)
2151
self.disable_initiator_tag = GLib.timeout_add(
2152
int((self.expires - now).total_seconds() * 1000),
2153
self.disable)
2154
1362
if getattr(self, "disable_initiator_tag", None) is None:
1363
return
1364
# Reschedule timeout
1365
gobject.source_remove(self.disable_initiator_tag)
1366
self.disable_initiator_tag = None
1367
self.expires = None
1368
time_to_die = timedelta_to_milliseconds((self
1369
.last_checked_ok
1370
+ self.timeout)
1371
- datetime.datetime
1372
.utcnow())
1373
if time_to_die <= 0:
1374
# The timeout has passed
1375
self.disable()
1376
else:
1377
self.expires = (datetime.datetime.utcnow()
1378
+ datetime.timedelta(milliseconds =
1379
time_to_die))
1380
self.disable_initiator_tag = (gobject.timeout_add
1381
(time_to_die, self.disable))
1382
2155
1383
# ExtendedTimeout - property
2156
@dbus_service_property(_interface,
2157
signature="t",
1384
@dbus_service_property(_interface, signature="t",
2158
1385
access="readwrite")
2159
1386
def ExtendedTimeout_dbus_property(self, value=None):
2160
1387
if value is None: # get
2161
return dbus.UInt64(self.extended_timeout.total_seconds()
2162
* 1000)
1388
return dbus.UInt64(self.extended_timeout_milliseconds())
2163
1389
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2164
1390
2165
1391
# Interval - property
2166
@dbus_service_property(_interface,
2167
signature="t",
1392
@dbus_service_property(_interface, signature="t",
2168
1393
access="readwrite")
2169
1394
def Interval_dbus_property(self, value=None):
2170
1395
if value is None: # get
2171
return dbus.UInt64(self.interval.total_seconds() * 1000)
1396
return dbus.UInt64(self.interval_milliseconds())
2172
1397
self.interval = datetime.timedelta(0, 0, 0, value)
2173
1398
if getattr(self, "checker_initiator_tag", None) is None:
2174
1399
return
2175
1400
if self.enabled:
2176
1401
# Reschedule checker run
2177
GLib.source_remove(self.checker_initiator_tag)
2178
self.checker_initiator_tag = GLib.timeout_add(
2179
value, self.start_checker)
2180
self.start_checker() # Start one now, too
2181
1402
gobject.source_remove(self.checker_initiator_tag)
1403
self.checker_initiator_tag = (gobject.timeout_add
1404
(value, self.start_checker))
1405
self.start_checker() # Start one now, too
1406
2182
1407
# Checker - property
2183
@dbus_service_property(_interface,
2184
signature="s",
1408
@dbus_service_property(_interface, signature="s",
2185
1409
access="readwrite")
2186
1410
def Checker_dbus_property(self, value=None):
2187
1411
if value is None: # get
2188
1412
return dbus.String(self.checker_command)
2189
self.checker_command = str(value)
2190
1413
self.checker_command = unicode(value)
1414
2191
1415
# CheckerRunning - property
2192
@dbus_service_property(_interface,
2193
signature="b",
1416
@dbus_service_property(_interface, signature="b",
2194
1417
access="readwrite")
2195
1418
def CheckerRunning_dbus_property(self, value=None):
2196
1419
if value is None: # get
2199
1422
self.start_checker()
2200
1423
else:
2201
1424
self.stop_checker()
2202
1425
2203
1426
# ObjectPath - property
2204
@dbus_annotations(
2205
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2206
"org.freedesktop.DBus.Deprecated": "true"})
2207
1427
@dbus_service_property(_interface, signature="o", access="read")
2208
1428
def ObjectPath_dbus_property(self):
2209
return self.dbus_object_path # is already a dbus.ObjectPath
2210
1429
return self.dbus_object_path # is already a dbus.ObjectPath
1430
2211
1431
# Secret = property
2212
@dbus_annotations(
2213
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2214
"invalidates"})
2215
@dbus_service_property(_interface,
2216
signature="ay",
2217
access="write",
2218
byte_arrays=True)
1432
@dbus_service_property(_interface, signature="ay",
1433
access="write", byte_arrays=True)
2219
1434
def Secret_dbus_property(self, value):
2220
self.secret = bytes(value)
2221
1435
self.secret = str(value)
1436
2222
1437
del _interface
2223
1438
2224
1439
2225
class ProxyClient:
2226
def __init__(self, child_pipe, key_id, fpr, address):
1440
class ProxyClient(object):
1441
def __init__(self, child_pipe, fpr, address):
2227
1442
self._pipe = child_pipe
2228
self._pipe.send(('init', key_id, fpr, address))
1443
self._pipe.send(('init', fpr, address))
2229
1444
if not self._pipe.recv():
2230
raise KeyError(key_id or fpr)
2231
1445
raise KeyError()
1446
2232
1447
def __getattribute__(self, name):
2233
1448
if name == '_pipe':
2234
1449
return super(ProxyClient, self).__getattribute__(name)
2237
1452
if data[0] == 'data':
2238
1453
return data[1]
2239
1454
if data[0] == 'function':
2240
2241
1455
def func(*args, **kwargs):
2242
1456
self._pipe.send(('funcall', name, args, kwargs))
2243
1457
return self._pipe.recv()[1]
2244
2245
1458
return func
2246
1459
2247
1460
def __setattr__(self, name, value):
2248
1461
if name == '_pipe':
2249
1462
return super(ProxyClient, self).__setattr__(name, value)
2250
1463
self._pipe.send(('setattr', name, value))
2251
1464
2252
1465
1466
class ClientDBusTransitional(ClientDBus):
1467
__metaclass__ = AlternateDBusNamesMetaclass
1468
1469
2253
1470
class ClientHandler(socketserver.BaseRequestHandler, object):
2254
1471
"""A class to handle client connections.
2255
1472
2256
1473
Instantiated once for each connection to handle it.
2257
1474
Note: This will run in its own forked process."""
2258
1475
2259
1476
def handle(self):
2260
1477
with contextlib.closing(self.server.child_pipe) as child_pipe:
2261
1478
logger.info("TCP connection from: %s",
2262
str(self.client_address))
1479
unicode(self.client_address))
2263
1480
logger.debug("Pipe FD: %d",
2264
1481
self.server.child_pipe.fileno())
2265
2266
session = gnutls.ClientSession(self.request)
2267
2268
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2269
# "+AES-256-CBC", "+SHA1",
2270
# "+COMP-NULL", "+CTYPE-OPENPGP",
2271
# "+DHE-DSS"))
1482
1483
session = (gnutls.connection
1484
.ClientSession(self.request,
1485
gnutls.connection
1486
.X509Credentials()))
1487
1488
# Note: gnutls.connection.X509Credentials is really a
1489
# generic GnuTLS certificate credentials object so long as
1490
# no X.509 keys are added to it. Therefore, we can use it
1491
# here despite using OpenPGP certificates.
1492
1493
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1494
# "+AES-256-CBC", "+SHA1",
1495
# "+COMP-NULL", "+CTYPE-OPENPGP",
1496
# "+DHE-DSS"))
2272
1497
# Use a fallback default, since this MUST be set.
2273
1498
priority = self.server.gnutls_priority
2274
1499
if priority is None:
2275
1500
priority = "NORMAL"
2276
gnutls.priority_set_direct(session._c_object,
2277
priority.encode("utf-8"),
2278
None)
2279
1501
(gnutls.library.functions
1502
.gnutls_priority_set_direct(session._c_object,
1503
priority, None))
1504
2280
1505
# Start communication using the Mandos protocol
2281
1506
# Get protocol number
2282
1507
line = self.request.makefile().readline()
2283
1508
logger.debug("Protocol version: %r", line)
2284
1509
try:
2285
1510
if int(line.strip().split()[0]) > 1:
2286
raise RuntimeError(line)
1511
raise RuntimeError
2287
1512
except (ValueError, IndexError, RuntimeError) as error:
2288
1513
logger.error("Unknown protocol version: %s", error)
2289
1514
return
2290
1515
2291
1516
# Start GnuTLS connection
2292
1517
try:
2293
1518
session.handshake()
2294
except gnutls.Error as error:
1519
except gnutls.errors.GNUTLSError as error:
2295
1520
logger.warning("Handshake failed: %s", error)
2296
1521
# Do not run session.bye() here: the session is not
2297
1522
# established. Just abandon the request.
2298
1523
return
2299
1524
logger.debug("Handshake succeeded")
2300
1525
2301
1526
approval_required = False
2302
1527
try:
2303
if gnutls.has_rawpk:
2304
fpr = b""
2305
try:
2306
key_id = self.key_id(
2307
self.peer_certificate(session))
2308
except (TypeError, gnutls.Error) as error:
2309
logger.warning("Bad certificate: %s", error)
2310
return
2311
logger.debug("Key ID: %s", key_id)
2312
2313
else:
2314
key_id = b""
2315
try:
2316
fpr = self.fingerprint(
2317
self.peer_certificate(session))
2318
except (TypeError, gnutls.Error) as error:
2319
logger.warning("Bad certificate: %s", error)
2320
return
2321
logger.debug("Fingerprint: %s", fpr)
2322
2323
try:
2324
client = ProxyClient(child_pipe, key_id, fpr,
1528
try:
1529
fpr = self.fingerprint(self.peer_certificate
1530
(session))
1531
except (TypeError,
1532
gnutls.errors.GNUTLSError) as error:
1533
logger.warning("Bad certificate: %s", error)
1534
return
1535
logger.debug("Fingerprint: %s", fpr)
1536
1537
try:
1538
client = ProxyClient(child_pipe, fpr,
2325
1539
self.client_address)
2326
1540
except KeyError:
2327
1541
return
2328
1542
1543
if self.server.use_dbus:
1544
# Emit D-Bus signal
1545
client.NewRequest(str(self.client_address))
1546
2329
1547
if client.approval_delay:
2330
1548
delay = client.approval_delay
2331
1549
client.approvals_pending += 1
2332
1550
approval_required = True
2333
1551
2334
1552
while True:
2335
1553
if not client.enabled:
2336
1554
logger.info("Client %s is disabled",
2337
client.name)
1555
client.name)
2338
1556
if self.server.use_dbus:
2339
1557
# Emit D-Bus signal
2340
1558
client.Rejected("Disabled")
2341
1559
return
2342
1560
2343
1561
if client.approved or not client.approval_delay:
2344
# We are approved or approval is disabled
1562
#We are approved or approval is disabled
2345
1563
break
2346
1564
elif client.approved is None:
2347
1565
logger.info("Client %s needs approval",
2349
1567
if self.server.use_dbus:
2350
1568
# Emit D-Bus signal
2351
1569
client.NeedApproval(
2352
client.approval_delay.total_seconds()
2353
* 1000, client.approved_by_default)
1570
client.approval_delay_milliseconds(),
1571
client.approved_by_default)
2354
1572
else:
2355
1573
logger.warning("Client %s was not approved",
2356
1574
client.name)
2358
1576
# Emit D-Bus signal
2359
1577
client.Rejected("Denied")
2360
1578
return
2361
2362
# wait until timeout or approved
1579
1580
#wait until timeout or approved
2363
1581
time = datetime.datetime.now()
2364
1582
client.changedstate.acquire()
2365
client.changedstate.wait(delay.total_seconds())
1583
(client.changedstate.wait
1584
(float(client.timedelta_to_milliseconds(delay)
1585
/ 1000)))
2366
1586
client.changedstate.release()
2367
1587
time2 = datetime.datetime.now()
2368
1588
if (time2 - time) >= delay:
2378
1598
break
2379
1599
else:
2380
1600
delay -= time2 - time
2381
2382
try:
2383
session.send(client.secret)
2384
except gnutls.Error as error:
2385
logger.warning("gnutls send failed",
2386
exc_info=error)
2387
return
2388
1601
1602
sent_size = 0
1603
while sent_size < len(client.secret):
1604
try:
1605
sent = session.send(client.secret[sent_size:])
1606
except gnutls.errors.GNUTLSError as error:
1607
logger.warning("gnutls send failed")
1608
return
1609
logger.debug("Sent: %d, remaining: %d",
1610
sent, len(client.secret)
1611
- (sent_size + sent))
1612
sent_size += sent
1613
2389
1614
logger.info("Sending secret to %s", client.name)
2390
1615
# bump the timeout using extended_timeout
2391
client.bump_timeout(client.extended_timeout)
1616
client.checked_ok(client.extended_timeout)
2392
1617
if self.server.use_dbus:
2393
1618
# Emit D-Bus signal
2394
1619
client.GotSecret()
2395
1620
2396
1621
finally:
2397
1622
if approval_required:
2398
1623
client.approvals_pending -= 1
2399
1624
try:
2400
1625
session.bye()
2401
except gnutls.Error as error:
2402
logger.warning("GnuTLS bye failed",
2403
exc_info=error)
2404
1626
except gnutls.errors.GNUTLSError as error:
1627
logger.warning("GnuTLS bye failed")
1628
2405
1629
@staticmethod
2406
1630
def peer_certificate(session):
2407
"Return the peer's certificate as a bytestring"
2408
try:
2409
cert_type = gnutls.certificate_type_get2(session._c_object,
2410
gnutls.CTYPE_PEERS)
2411
except AttributeError:
2412
cert_type = gnutls.certificate_type_get(session._c_object)
2413
if gnutls.has_rawpk:
2414
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2415
else:
2416
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2417
# If not a valid certificate type...
2418
if cert_type not in valid_cert_types:
2419
logger.info("Cert type %r not in %r", cert_type,
2420
valid_cert_types)
2421
# ...return invalid data
2422
return b""
1631
"Return the peer's OpenPGP certificate as a bytestring"
1632
# If not an OpenPGP certificate...
1633
if (gnutls.library.functions
1634
.gnutls_certificate_type_get(session._c_object)
1635
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1636
# ...do the normal thing
1637
return session.peer_certificate
2423
1638
list_size = ctypes.c_uint(1)
2424
cert_list = (gnutls.certificate_get_peers
1639
cert_list = (gnutls.library.functions
1640
.gnutls_certificate_get_peers
2425
1641
(session._c_object, ctypes.byref(list_size)))
2426
1642
if not bool(cert_list) and list_size.value != 0:
2427
raise gnutls.Error("error getting peer certificate")
1643
raise gnutls.errors.GNUTLSError("error getting peer"
1644
" certificate")
2428
1645
if list_size.value == 0:
2429
1646
return None
2430
1647
cert = cert_list[0]
2431
1648
return ctypes.string_at(cert.data, cert.size)
2432
2433
@staticmethod
2434
def key_id(certificate):
2435
"Convert a certificate bytestring to a hexdigit key ID"
2436
# New GnuTLS "datum" with the public key
2437
datum = gnutls.datum_t(
2438
ctypes.cast(ctypes.c_char_p(certificate),
2439
ctypes.POINTER(ctypes.c_ubyte)),
2440
ctypes.c_uint(len(certificate)))
2441
# XXX all these need to be created in the gnutls "module"
2442
# New empty GnuTLS certificate
2443
pubkey = gnutls.pubkey_t()
2444
gnutls.pubkey_init(ctypes.byref(pubkey))
2445
# Import the raw public key into the certificate
2446
gnutls.pubkey_import(pubkey,
2447
ctypes.byref(datum),
2448
gnutls.X509_FMT_DER)
2449
# New buffer for the key ID
2450
buf = ctypes.create_string_buffer(32)
2451
buf_len = ctypes.c_size_t(len(buf))
2452
# Get the key ID from the raw public key into the buffer
2453
gnutls.pubkey_get_key_id(pubkey,
2454
gnutls.KEYID_USE_SHA256,
2455
ctypes.cast(ctypes.byref(buf),
2456
ctypes.POINTER(ctypes.c_ubyte)),
2457
ctypes.byref(buf_len))
2458
# Deinit the certificate
2459
gnutls.pubkey_deinit(pubkey)
2460
2461
# Convert the buffer to a Python bytestring
2462
key_id = ctypes.string_at(buf, buf_len.value)
2463
# Convert the bytestring to hexadecimal notation
2464
hex_key_id = binascii.hexlify(key_id).upper()
2465
return hex_key_id
2466
1649
2467
1650
@staticmethod
2468
1651
def fingerprint(openpgp):
2469
1652
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2470
1653
# New GnuTLS "datum" with the OpenPGP public key
2471
datum = gnutls.datum_t(
2472
ctypes.cast(ctypes.c_char_p(openpgp),
2473
ctypes.POINTER(ctypes.c_ubyte)),
2474
ctypes.c_uint(len(openpgp)))
1654
datum = (gnutls.library.types
1655
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1656
ctypes.POINTER
1657
(ctypes.c_ubyte)),
1658
ctypes.c_uint(len(openpgp))))
2475
1659
# New empty GnuTLS certificate
2476
crt = gnutls.openpgp_crt_t()
2477
gnutls.openpgp_crt_init(ctypes.byref(crt))
1660
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1661
(gnutls.library.functions
1662
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2478
1663
# Import the OpenPGP public key into the certificate
2479
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2480
gnutls.OPENPGP_FMT_RAW)
1664
(gnutls.library.functions
1665
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1666
gnutls.library.constants
1667
.GNUTLS_OPENPGP_FMT_RAW))
2481
1668
# Verify the self signature in the key
2482
1669
crtverify = ctypes.c_uint()
2483
gnutls.openpgp_crt_verify_self(crt, 0,
2484
ctypes.byref(crtverify))
1670
(gnutls.library.functions
1671
.gnutls_openpgp_crt_verify_self(crt, 0,
1672
ctypes.byref(crtverify)))
2485
1673
if crtverify.value != 0:
2486
gnutls.openpgp_crt_deinit(crt)
2487
raise gnutls.CertificateSecurityError(code
2488
=crtverify.value)
1674
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1675
raise (gnutls.errors.CertificateSecurityError
1676
("Verify failed"))
2489
1677
# New buffer for the fingerprint
2490
1678
buf = ctypes.create_string_buffer(20)
2491
1679
buf_len = ctypes.c_size_t()
2492
1680
# Get the fingerprint from the certificate into the buffer
2493
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2494
ctypes.byref(buf_len))
1681
(gnutls.library.functions
1682
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1683
ctypes.byref(buf_len)))
2495
1684
# Deinit the certificate
2496
gnutls.openpgp_crt_deinit(crt)
1685
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2497
1686
# Convert the buffer to a Python bytestring
2498
1687
fpr = ctypes.string_at(buf, buf_len.value)
2499
1688
# Convert the bytestring to hexadecimal notation
2501
1690
return hex_fpr
2502
1691
2503
1692
2504
class MultiprocessingMixIn:
1693
class MultiprocessingMixIn(object):
2505
1694
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2506
2507
1695
def sub_process_main(self, request, address):
2508
1696
try:
2509
1697
self.finish_request(request, address)
2510
1698
except Exception:
2511
1699
self.handle_error(request, address)
2512
1700
self.close_request(request)
2513
1701
2514
1702
def process_request(self, request, address):
2515
1703
"""Start a new process to process the request."""
2516
proc = multiprocessing.Process(target=self.sub_process_main,
2517
args=(request, address))
1704
proc = multiprocessing.Process(target = self.sub_process_main,
1705
args = (request,
1706
address))
2518
1707
proc.start()
2519
1708
return proc
2520
1709
2521
1710
2522
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1711
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2523
1712
""" adds a pipe to the MixIn """
2524
2525
1713
def process_request(self, request, client_address):
2526
1714
"""Overrides and wraps the original process_request().
2527
1715
2528
1716
This function creates a new pipe in self.pipe
2529
1717
"""
2530
1718
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2531
1719
2532
1720
proc = MultiprocessingMixIn.process_request(self, request,
2533
1721
client_address)
2534
1722
self.child_pipe.close()
2535
1723
self.add_pipe(parent_pipe, proc)
2536
1724
2537
1725
def add_pipe(self, parent_pipe, proc):
2538
1726
"""Dummy function; override as necessary"""
2539
raise NotImplementedError()
1727
raise NotImplementedError
2540
1728
2541
1729
2542
1730
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2543
socketserver.TCPServer):
1731
socketserver.TCPServer, object):
2544
1732
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2545
1733
2546
1734
Attributes:
2547
1735
enabled: Boolean; whether this server is activated yet
2548
1736
interface: None or a network interface name (string)
2549
1737
use_ipv6: Boolean; to use IPv6 or not
2550
1738
"""
2551
2552
1739
def __init__(self, server_address, RequestHandlerClass,
2553
interface=None,
2554
use_ipv6=True,
2555
socketfd=None):
2556
"""If socketfd is set, use that file descriptor instead of
2557
creating a new one with socket.socket().
2558
"""
1740
interface=None, use_ipv6=True):
2559
1741
self.interface = interface
2560
1742
if use_ipv6:
2561
1743
self.address_family = socket.AF_INET6
2562
if socketfd is not None:
2563
# Save the file descriptor
2564
self.socketfd = socketfd
2565
# Save the original socket.socket() function
2566
self.socket_socket = socket.socket
2567
2568
# To implement --socket, we monkey patch socket.socket.
2569
#
2570
# (When socketserver.TCPServer is a new-style class, we
2571
# could make self.socket into a property instead of monkey
2572
# patching socket.socket.)
2573
#
2574
# Create a one-time-only replacement for socket.socket()
2575
@functools.wraps(socket.socket)
2576
def socket_wrapper(*args, **kwargs):
2577
# Restore original function so subsequent calls are
2578
# not affected.
2579
socket.socket = self.socket_socket
2580
del self.socket_socket
2581
# This time only, return a new socket object from the
2582
# saved file descriptor.
2583
return socket.fromfd(self.socketfd, *args, **kwargs)
2584
# Replace socket.socket() function with wrapper
2585
socket.socket = socket_wrapper
2586
# The socketserver.TCPServer.__init__ will call
2587
# socket.socket(), which might be our replacement,
2588
# socket_wrapper(), if socketfd was set.
2589
1744
socketserver.TCPServer.__init__(self, server_address,
2590
1745
RequestHandlerClass)
2591
2592
1746
def server_bind(self):
2593
1747
"""This overrides the normal server_bind() function
2594
1748
to bind to an interface if one was specified, and also NOT to
2595
1749
bind to an address or port if they were not specified."""
2596
global SO_BINDTODEVICE
2597
1750
if self.interface is not None:
2598
1751
if SO_BINDTODEVICE is None:
2599
# Fall back to a hard-coded value which seems to be
2600
# common enough.
2601
logger.warning("SO_BINDTODEVICE not found, trying 25")
2602
SO_BINDTODEVICE = 25
2603
try:
2604
self.socket.setsockopt(
2605
socket.SOL_SOCKET, SO_BINDTODEVICE,
2606
(self.interface + "\0").encode("utf-8"))
2607
except socket.error as error:
2608
if error.errno == errno.EPERM:
2609
logger.error("No permission to bind to"
2610
" interface %s", self.interface)
2611
elif error.errno == errno.ENOPROTOOPT:
2612
logger.error("SO_BINDTODEVICE not available;"
2613
" cannot bind to interface %s",
2614
self.interface)
2615
elif error.errno == errno.ENODEV:
2616
logger.error("Interface %s does not exist,"
2617
" cannot bind", self.interface)
2618
else:
2619
raise
1752
logger.error("SO_BINDTODEVICE does not exist;"
1753
" cannot bind to interface %s",
1754
self.interface)
1755
else:
1756
try:
1757
self.socket.setsockopt(socket.SOL_SOCKET,
1758
SO_BINDTODEVICE,
1759
str(self.interface
1760
+ '\0'))
1761
except socket.error as error:
1762
if error[0] == errno.EPERM:
1763
logger.error("No permission to"
1764
" bind to interface %s",
1765
self.interface)
1766
elif error[0] == errno.ENOPROTOOPT:
1767
logger.error("SO_BINDTODEVICE not available;"
1768
" cannot bind to interface %s",
1769
self.interface)
1770
else:
1771
raise
2620
1772
# Only bind(2) the socket if we really need to.
2621
1773
if self.server_address[0] or self.server_address[1]:
2622
if self.server_address[1]:
2623
self.allow_reuse_address = True
2624
1774
if not self.server_address[0]:
2625
1775
if self.address_family == socket.AF_INET6:
2626
any_address = "::" # in6addr_any
1776
any_address = "::" # in6addr_any
2627
1777
else:
2628
any_address = "0.0.0.0" # INADDR_ANY
1778
any_address = socket.INADDR_ANY
2629
1779
self.server_address = (any_address,
2630
1780
self.server_address[1])
2631
1781
elif not self.server_address[1]:
2632
self.server_address = (self.server_address[0], 0)
1782
self.server_address = (self.server_address[0],
1783
0)
2633
1784
# if self.interface:
2634
1785
# self.server_address = (self.server_address[0],
2635
1786
# 0, # port
2641
1792
2642
1793
class MandosServer(IPv6_TCPServer):
2643
1794
"""Mandos server.
2644
1795
2645
1796
Attributes:
2646
1797
clients: set of Client objects
2647
1798
gnutls_priority GnuTLS priority string
2648
1799
use_dbus: Boolean; to emit D-Bus signals or not
2649
2650
Assumes a GLib.MainLoop event loop.
1800
1801
Assumes a gobject.MainLoop event loop.
2651
1802
"""
2652
2653
1803
def __init__(self, server_address, RequestHandlerClass,
2654
interface=None,
2655
use_ipv6=True,
2656
clients=None,
2657
gnutls_priority=None,
2658
use_dbus=True,
2659
socketfd=None):
1804
interface=None, use_ipv6=True, clients=None,
1805
gnutls_priority=None, use_dbus=True):
2660
1806
self.enabled = False
2661
1807
self.clients = clients
2662
1808
if self.clients is None:
2665
1811
self.gnutls_priority = gnutls_priority
2666
1812
IPv6_TCPServer.__init__(self, server_address,
2667
1813
RequestHandlerClass,
2668
interface=interface,
2669
use_ipv6=use_ipv6,
2670
socketfd=socketfd)
2671
1814
interface = interface,
1815
use_ipv6 = use_ipv6)
2672
1816
def server_activate(self):
2673
1817
if self.enabled:
2674
1818
return socketserver.TCPServer.server_activate(self)
2675
1819
2676
1820
def enable(self):
2677
1821
self.enabled = True
2678
1822
2679
1823
def add_pipe(self, parent_pipe, proc):
2680
1824
# Call "handle_ipc" for both data and EOF events
2681
GLib.io_add_watch(
2682
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2683
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2684
functools.partial(self.handle_ipc,
2685
parent_pipe=parent_pipe,
2686
proc=proc))
2687
2688
def handle_ipc(self, source, condition,
2689
parent_pipe=None,
2690
proc=None,
2691
client_object=None):
1825
gobject.io_add_watch(parent_pipe.fileno(),
1826
gobject.IO_IN | gobject.IO_HUP,
1827
functools.partial(self.handle_ipc,
1828
parent_pipe =
1829
parent_pipe,
1830
proc = proc))
1831
1832
def handle_ipc(self, source, condition, parent_pipe=None,
1833
proc = None, client_object=None):
1834
condition_names = {
1835
gobject.IO_IN: "IN", # There is data to read.
1836
gobject.IO_OUT: "OUT", # Data can be written (without
1837
# blocking).
1838
gobject.IO_PRI: "PRI", # There is urgent data to read.
1839
gobject.IO_ERR: "ERR", # Error condition.
1840
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1841
# broken, usually for pipes and
1842
# sockets).
1843
}
1844
conditions_string = ' | '.join(name
1845
for cond, name in
1846
condition_names.iteritems()
1847
if cond & condition)
2692
1848
# error, or the other end of multiprocessing.Pipe has closed
2693
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1849
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2694
1850
# Wait for other process to exit
2695
1851
proc.join()
2696
1852
return False
2697
1853
2698
1854
# Read a request from the child
2699
1855
request = parent_pipe.recv()
2700
1856
command = request[0]
2701
1857
2702
1858
if command == 'init':
2703
key_id = request[1].decode("ascii")
2704
fpr = request[2].decode("ascii")
2705
address = request[3]
2706
2707
for c in self.clients.values():
2708
if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":
2709
continue
2710
if key_id and c.key_id == key_id:
2711
client = c
2712
break
2713
if fpr and c.fingerprint == fpr:
1859
fpr = request[1]
1860
address = request[2]
1861
1862
for c in self.clients.itervalues():
1863
if c.fingerprint == fpr:
2714
1864
client = c
2715
1865
break
2716
1866
else:
2717
logger.info("Client not found for key ID: %s, address"
2718
": %s", key_id or fpr, address)
1867
logger.info("Client not found for fingerprint: %s, ad"
1868
"dress: %s", fpr, address)
2719
1869
if self.use_dbus:
2720
1870
# Emit D-Bus signal
2721
mandos_dbus_service.ClientNotFound(key_id or fpr,
1871
mandos_dbus_service.ClientNotFound(fpr,
2722
1872
address[0])
2723
1873
parent_pipe.send(False)
2724
1874
return False
2725
2726
GLib.io_add_watch(
2727
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2728
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2729
functools.partial(self.handle_ipc,
2730
parent_pipe=parent_pipe,
2731
proc=proc,
2732
client_object=client))
1875
1876
gobject.io_add_watch(parent_pipe.fileno(),
1877
gobject.IO_IN | gobject.IO_HUP,
1878
functools.partial(self.handle_ipc,
1879
parent_pipe =
1880
parent_pipe,
1881
proc = proc,
1882
client_object =
1883
client))
2733
1884
parent_pipe.send(True)
2734
1885
# remove the old hook in favor of the new above hook on
2735
1886
# same fileno
2738
1889
funcname = request[1]
2739
1890
args = request[2]
2740
1891
kwargs = request[3]
2741
1892
2742
1893
parent_pipe.send(('data', getattr(client_object,
2743
1894
funcname)(*args,
2744
**kwargs)))
2745
1895
**kwargs)))
1896
2746
1897
if command == 'getattr':
2747
1898
attrname = request[1]
2748
if isinstance(client_object.__getattribute__(attrname),
2749
collections.Callable):
2750
parent_pipe.send(('function', ))
1899
if callable(client_object.__getattribute__(attrname)):
1900
parent_pipe.send(('function',))
2751
1901
else:
2752
parent_pipe.send((
2753
'data', client_object.__getattribute__(attrname)))
2754
1902
parent_pipe.send(('data', client_object
1903
.__getattribute__(attrname)))
1904
2755
1905
if command == 'setattr':
2756
1906
attrname = request[1]
2757
1907
value = request[2]
2758
1908
setattr(client_object, attrname, value)
2759
1909
2760
1910
return True
2761
1911
2762
1912
2763
def rfc3339_duration_to_delta(duration):
2764
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2765
2766
>>> rfc3339_duration_to_delta("P7D") == datetime.timedelta(7)
2767
True
2768
>>> rfc3339_duration_to_delta("PT60S") == datetime.timedelta(0, 60)
2769
True
2770
>>> rfc3339_duration_to_delta("PT60M") == datetime.timedelta(0, 3600)
2771
True
2772
>>> rfc3339_duration_to_delta("PT24H") == datetime.timedelta(1)
2773
True
2774
>>> rfc3339_duration_to_delta("P1W") == datetime.timedelta(7)
2775
True
2776
>>> rfc3339_duration_to_delta("PT5M30S") == datetime.timedelta(0, 330)
2777
True
2778
>>> rfc3339_duration_to_delta("P1DT3M20S") == datetime.timedelta(1, 200)
2779
True
2780
"""
2781
2782
# Parsing an RFC 3339 duration with regular expressions is not
2783
# possible - there would have to be multiple places for the same
2784
# values, like seconds. The current code, while more esoteric, is
2785
# cleaner without depending on a parsing library. If Python had a
2786
# built-in library for parsing we would use it, but we'd like to
2787
# avoid excessive use of external libraries.
2788
2789
# New type for defining tokens, syntax, and semantics all-in-one
2790
Token = collections.namedtuple("Token", (
2791
"regexp", # To match token; if "value" is not None, must have
2792
# a "group" containing digits
2793
"value", # datetime.timedelta or None
2794
"followers")) # Tokens valid after this token
2795
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2796
# the "duration" ABNF definition in RFC 3339, Appendix A.
2797
token_end = Token(re.compile(r"$"), None, frozenset())
2798
token_second = Token(re.compile(r"(\d+)S"),
2799
datetime.timedelta(seconds=1),
2800
frozenset((token_end, )))
2801
token_minute = Token(re.compile(r"(\d+)M"),
2802
datetime.timedelta(minutes=1),
2803
frozenset((token_second, token_end)))
2804
token_hour = Token(re.compile(r"(\d+)H"),
2805
datetime.timedelta(hours=1),
2806
frozenset((token_minute, token_end)))
2807
token_time = Token(re.compile(r"T"),
2808
None,
2809
frozenset((token_hour, token_minute,
2810
token_second)))
2811
token_day = Token(re.compile(r"(\d+)D"),
2812
datetime.timedelta(days=1),
2813
frozenset((token_time, token_end)))
2814
token_month = Token(re.compile(r"(\d+)M"),
2815
datetime.timedelta(weeks=4),
2816
frozenset((token_day, token_end)))
2817
token_year = Token(re.compile(r"(\d+)Y"),
2818
datetime.timedelta(weeks=52),
2819
frozenset((token_month, token_end)))
2820
token_week = Token(re.compile(r"(\d+)W"),
2821
datetime.timedelta(weeks=1),
2822
frozenset((token_end, )))
2823
token_duration = Token(re.compile(r"P"), None,
2824
frozenset((token_year, token_month,
2825
token_day, token_time,
2826
token_week)))
2827
# Define starting values:
2828
# Value so far
2829
value = datetime.timedelta()
2830
found_token = None
2831
# Following valid tokens
2832
followers = frozenset((token_duration, ))
2833
# String left to parse
2834
s = duration
2835
# Loop until end token is found
2836
while found_token is not token_end:
2837
# Search for any currently valid tokens
2838
for token in followers:
2839
match = token.regexp.match(s)
2840
if match is not None:
2841
# Token found
2842
if token.value is not None:
2843
# Value found, parse digits
2844
factor = int(match.group(1), 10)
2845
# Add to value so far
2846
value += factor * token.value
2847
# Strip token from string
2848
s = token.regexp.sub("", s, 1)
2849
# Go to found token
2850
found_token = token
2851
# Set valid next tokens
2852
followers = found_token.followers
2853
break
2854
else:
2855
# No currently valid tokens were found
2856
raise ValueError("Invalid RFC 3339 duration: {!r}"
2857
.format(duration))
2858
# End token found
2859
return value
2860
2861
2862
1913
def string_to_delta(interval):
2863
1914
"""Parse a string and return a datetime.timedelta
2864
2865
>>> string_to_delta('7d') == datetime.timedelta(7)
2866
True
2867
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2868
True
2869
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2870
True
2871
>>> string_to_delta('24h') == datetime.timedelta(1)
2872
True
2873
>>> string_to_delta('1w') == datetime.timedelta(7)
2874
True
2875
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2876
True
1915
1916
>>> string_to_delta('7d')
1917
datetime.timedelta(7)
1918
>>> string_to_delta('60s')
1919
datetime.timedelta(0, 60)
1920
>>> string_to_delta('60m')
1921
datetime.timedelta(0, 3600)
1922
>>> string_to_delta('24h')
1923
datetime.timedelta(1)
1924
>>> string_to_delta('1w')
1925
datetime.timedelta(7)
1926
>>> string_to_delta('5m 30s')
1927
datetime.timedelta(0, 330)
2877
1928
"""
2878
2879
try:
2880
return rfc3339_duration_to_delta(interval)
2881
except ValueError:
2882
pass
2883
2884
1929
timevalue = datetime.timedelta(0)
2885
1930
for s in interval.split():
2886
1931
try:
2887
suffix = s[-1]
1932
suffix = unicode(s[-1])
2888
1933
value = int(s[:-1])
2889
1934
if suffix == "d":
2890
1935
delta = datetime.timedelta(value)
2897
1942
elif suffix == "w":
2898
1943
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2899
1944
else:
2900
raise ValueError("Unknown suffix {!r}".format(suffix))
2901
except IndexError as e:
1945
raise ValueError("Unknown suffix %r" % suffix)
1946
except (ValueError, IndexError) as e:
2902
1947
raise ValueError(*(e.args))
2903
1948
timevalue += delta
2904
1949
return timevalue
2905
1950
2906
1951
2907
def daemon(nochdir=False, noclose=False):
1952
def daemon(nochdir = False, noclose = False):
2908
1953
"""See daemon(3). Standard BSD Unix function.
2909
1954
2910
1955
This should really exist as os.daemon, but it doesn't (yet)."""
2911
1956
if os.fork():
2912
1957
sys.exit()
2917
1962
sys.exit()
2918
1963
if not noclose:
2919
1964
# Close all standard open file descriptors
2920
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1965
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2921
1966
if not stat.S_ISCHR(os.fstat(null).st_mode):
2922
1967
raise OSError(errno.ENODEV,
2923
"{} not a character device"
2924
.format(os.devnull))
1968
"%s not a character device"
1969
% os.path.devnull)
2925
1970
os.dup2(null, sys.stdin.fileno())
2926
1971
os.dup2(null, sys.stdout.fileno())
2927
1972
os.dup2(null, sys.stderr.fileno())
2930
1975
2931
1976
2932
1977
def main():
2933
1978
2934
1979
##################################################################
2935
1980
# Parsing of options, both command line and config file
2936
1981
2937
1982
parser = argparse.ArgumentParser()
2938
1983
parser.add_argument("-v", "--version", action="version",
2939
version="%(prog)s {}".format(version),
1984
version = "%%(prog)s %s" % version,
2940
1985
help="show version number and exit")
2941
1986
parser.add_argument("-i", "--interface", metavar="IF",
2942
1987
help="Bind to interface IF")
2948
1993
help="Run self-test")
2949
1994
parser.add_argument("--debug", action="store_true",
2950
1995
help="Debug mode; run in foreground and log"
2951
" to terminal", default=None)
1996
" to terminal")
2952
1997
parser.add_argument("--debuglevel", metavar="LEVEL",
2953
1998
help="Debug level for stdout output")
2954
1999
parser.add_argument("--priority", help="GnuTLS"
2961
2006
" files")
2962
2007
parser.add_argument("--no-dbus", action="store_false",
2963
2008
dest="use_dbus", help="Do not provide D-Bus"
2964
" system bus interface", default=None)
2009
" system bus interface")
2965
2010
parser.add_argument("--no-ipv6", action="store_false",
2966
dest="use_ipv6", help="Do not use IPv6",
2967
default=None)
2011
dest="use_ipv6", help="Do not use IPv6")
2968
2012
parser.add_argument("--no-restore", action="store_false",
2969
2013
dest="restore", help="Do not restore stored"
2970
" state", default=None)
2971
parser.add_argument("--socket", type=int,
2972
help="Specify a file descriptor to a network"
2973
" socket to use instead of creating one")
2014
" state")
2974
2015
parser.add_argument("--statedir", metavar="DIR",
2975
2016
help="Directory to save/restore state in")
2976
parser.add_argument("--foreground", action="store_true",
2977
help="Run in foreground", default=None)
2978
parser.add_argument("--no-zeroconf", action="store_false",
2979
dest="zeroconf", help="Do not use Zeroconf",
2980
default=None)
2981
2017
2982
2018
options = parser.parse_args()
2983
2019
2020
if options.check:
2021
import doctest
2022
doctest.testmod()
2023
sys.exit()
2024
2984
2025
# Default values for config file for server-global settings
2985
if gnutls.has_rawpk:
2986
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
2987
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
2988
else:
2989
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2990
":+SIGN-DSA-SHA256")
2991
server_defaults = {"interface": "",
2992
"address": "",
2993
"port": "",
2994
"debug": "False",
2995
"priority": priority,
2996
"servicename": "Mandos",
2997
"use_dbus": "True",
2998
"use_ipv6": "True",
2999
"debuglevel": "",
3000
"restore": "True",
3001
"socket": "",
3002
"statedir": "/var/lib/mandos",
3003
"foreground": "False",
3004
"zeroconf": "True",
3005
}
3006
del priority
3007
2026
server_defaults = { "interface": "",
2027
"address": "",
2028
"port": "",
2029
"debug": "False",
2030
"priority":
2031
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2032
"servicename": "Mandos",
2033
"use_dbus": "True",
2034
"use_ipv6": "True",
2035
"debuglevel": "",
2036
"restore": "True",
2037
"statedir": "/var/lib/mandos"
2038
}
2039
3008
2040
# Parse config file for server-global settings
3009
server_config = configparser.ConfigParser(server_defaults)
2041
server_config = configparser.SafeConfigParser(server_defaults)
3010
2042
del server_defaults
3011
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3012
# Convert the ConfigParser object to a dict
2043
server_config.read(os.path.join(options.configdir,
2044
"mandos.conf"))
2045
# Convert the SafeConfigParser object to a dict
3013
2046
server_settings = server_config.defaults()
3014
2047
# Use the appropriate methods on the non-string config options
3015
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3016
"foreground", "zeroconf"):
2048
for option in ("debug", "use_dbus", "use_ipv6"):
3017
2049
server_settings[option] = server_config.getboolean("DEFAULT",
3018
2050
option)
3019
2051
if server_settings["port"]:
3020
2052
server_settings["port"] = server_config.getint("DEFAULT",
3021
2053
"port")
3022
if server_settings["socket"]:
3023
server_settings["socket"] = server_config.getint("DEFAULT",
3024
"socket")
3025
# Later, stdin will, and stdout and stderr might, be dup'ed
3026
# over with an opened os.devnull. But we don't want this to
3027
# happen with a supplied network socket.
3028
if 0 <= server_settings["socket"] <= 2:
3029
server_settings["socket"] = os.dup(server_settings
3030
["socket"])
3031
2054
del server_config
3032
2055
3033
2056
# Override the settings from the config file with command line
3034
2057
# options, if set.
3035
2058
for option in ("interface", "address", "port", "debug",
3036
"priority", "servicename", "configdir", "use_dbus",
3037
"use_ipv6", "debuglevel", "restore", "statedir",
3038
"socket", "foreground", "zeroconf"):
2059
"priority", "servicename", "configdir",
2060
"use_dbus", "use_ipv6", "debuglevel", "restore",
2061
"statedir"):
3039
2062
value = getattr(options, option)
3040
2063
if value is not None:
3041
2064
server_settings[option] = value
3042
2065
del options
3043
2066
# Force all strings to be unicode
3044
2067
for option in server_settings.keys():
3045
if isinstance(server_settings[option], bytes):
3046
server_settings[option] = (server_settings[option]
3047
.decode("utf-8"))
3048
# Force all boolean options to be boolean
3049
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3050
"foreground", "zeroconf"):
3051
server_settings[option] = bool(server_settings[option])
3052
# Debug implies foreground
3053
if server_settings["debug"]:
3054
server_settings["foreground"] = True
2068
if type(server_settings[option]) is str:
2069
server_settings[option] = unicode(server_settings[option])
3055
2070
# Now we have our good server settings in "server_settings"
3056
2071
3057
2072
##################################################################
3058
3059
if (not server_settings["zeroconf"]
3060
and not (server_settings["port"]
3061
or server_settings["socket"] != "")):
3062
parser.error("Needs port or socket to work without Zeroconf")
3063
2073
3064
2074
# For convenience
3065
2075
debug = server_settings["debug"]
3066
2076
debuglevel = server_settings["debuglevel"]
3068
2078
use_ipv6 = server_settings["use_ipv6"]
3069
2079
stored_state_path = os.path.join(server_settings["statedir"],
3070
2080
stored_state_file)
3071
foreground = server_settings["foreground"]
3072
zeroconf = server_settings["zeroconf"]
3073
2081
3074
2082
if debug:
3075
2083
initlogger(debug, logging.DEBUG)
3076
2084
else:
3079
2087
else:
3080
2088
level = getattr(logging, debuglevel.upper())
3081
2089
initlogger(debug, level)
3082
2090
3083
2091
if server_settings["servicename"] != "Mandos":
3084
syslogger.setFormatter(
3085
logging.Formatter('Mandos ({}) [%(process)d]:'
3086
' %(levelname)s: %(message)s'.format(
3087
server_settings["servicename"])))
3088
2092
syslogger.setFormatter(logging.Formatter
2093
('Mandos (%s) [%%(process)d]:'
2094
' %%(levelname)s: %%(message)s'
2095
% server_settings["servicename"]))
2096
3089
2097
# Parse config file with clients
3090
client_config = configparser.ConfigParser(Client.client_defaults)
2098
client_config = configparser.SafeConfigParser(Client.client_defaults)
3091
2099
client_config.read(os.path.join(server_settings["configdir"],
3092
2100
"clients.conf"))
3093
2101
3094
2102
global mandos_dbus_service
3095
2103
mandos_dbus_service = None
3096
3097
socketfd = None
3098
if server_settings["socket"] != "":
3099
socketfd = server_settings["socket"]
3100
tcp_server = MandosServer(
3101
(server_settings["address"], server_settings["port"]),
3102
ClientHandler,
3103
interface=(server_settings["interface"] or None),
3104
use_ipv6=use_ipv6,
3105
gnutls_priority=server_settings["priority"],
3106
use_dbus=use_dbus,
3107
socketfd=socketfd)
3108
if not foreground:
3109
pidfilename = "/run/mandos.pid"
3110
if not os.path.isdir("/run/."):
3111
pidfilename = "/var/run/mandos.pid"
3112
pidfile = None
3113
try:
3114
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3115
except IOError as e:
3116
logger.error("Could not open file %r", pidfilename,
3117
exc_info=e)
3118
3119
for name, group in (("_mandos", "_mandos"),
3120
("mandos", "mandos"),
3121
("nobody", "nogroup")):
3122
try:
3123
uid = pwd.getpwnam(name).pw_uid
3124
gid = pwd.getpwnam(group).pw_gid
3125
break
2104
2105
tcp_server = MandosServer((server_settings["address"],
2106
server_settings["port"]),
2107
ClientHandler,
2108
interface=(server_settings["interface"]
2109
or None),
2110
use_ipv6=use_ipv6,
2111
gnutls_priority=
2112
server_settings["priority"],
2113
use_dbus=use_dbus)
2114
if not debug:
2115
pidfilename = "/var/run/mandos.pid"
2116
try:
2117
pidfile = open(pidfilename, "w")
2118
except IOError:
2119
logger.error("Could not open file %r", pidfilename)
2120
2121
try:
2122
uid = pwd.getpwnam("_mandos").pw_uid
2123
gid = pwd.getpwnam("_mandos").pw_gid
2124
except KeyError:
2125
try:
2126
uid = pwd.getpwnam("mandos").pw_uid
2127
gid = pwd.getpwnam("mandos").pw_gid
3126
2128
except KeyError:
3127
continue
3128
else:
3129
uid = 65534
3130
gid = 65534
2129
try:
2130
uid = pwd.getpwnam("nobody").pw_uid
2131
gid = pwd.getpwnam("nobody").pw_gid
2132
except KeyError:
2133
uid = 65534
2134
gid = 65534
3131
2135
try:
3132
2136
os.setgid(gid)
3133
2137
os.setuid(uid)
3134
if debug:
3135
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3136
gid))
3137
2138
except OSError as error:
3138
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3139
.format(uid, gid, os.strerror(error.errno)))
3140
if error.errno != errno.EPERM:
3141
raise
3142
2139
if error[0] != errno.EPERM:
2140
raise error
2141
3143
2142
if debug:
3144
2143
# Enable all possible GnuTLS debugging
3145
2144
3146
2145
# "Use a log level over 10 to enable all debugging options."
3147
2146
# - GnuTLS manual
3148
gnutls.global_set_log_level(11)
3149
3150
@gnutls.log_func
2147
gnutls.library.functions.gnutls_global_set_log_level(11)
2148
2149
@gnutls.library.types.gnutls_log_func
3151
2150
def debug_gnutls(level, string):
3152
2151
logger.debug("GnuTLS: %s", string[:-1])
3153
3154
gnutls.global_set_log_function(debug_gnutls)
3155
2152
2153
(gnutls.library.functions
2154
.gnutls_global_set_log_function(debug_gnutls))
2155
3156
2156
# Redirect stdin so all checkers get /dev/null
3157
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2157
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3158
2158
os.dup2(null, sys.stdin.fileno())
3159
2159
if null > 2:
3160
2160
os.close(null)
3161
2161
3162
2162
# Need to fork before connecting to D-Bus
3163
if not foreground:
2163
if not debug:
3164
2164
# Close all input and output, do double fork, etc.
3165
2165
daemon()
3166
3167
if gi.version_info < (3, 10, 2):
3168
# multiprocessing will use threads, so before we use GLib we
3169
# need to inform GLib that threads will be used.
3170
GLib.threads_init()
3171
2166
2167
gobject.threads_init()
2168
3172
2169
global main_loop
3173
2170
# From the Avahi example code
3174
DBusGMainLoop(set_as_default=True)
3175
main_loop = GLib.MainLoop()
2171
DBusGMainLoop(set_as_default=True )
2172
main_loop = gobject.MainLoop()
3176
2173
bus = dbus.SystemBus()
3177
2174
# End of Avahi example code
3178
2175
if use_dbus:
3179
2176
try:
3180
2177
bus_name = dbus.service.BusName("se.recompile.Mandos",
3181
bus,
3182
do_not_queue=True)
3183
old_bus_name = dbus.service.BusName(
3184
"se.bsnet.fukt.Mandos", bus,
3185
do_not_queue=True)
3186
except dbus.exceptions.DBusException as e:
3187
logger.error("Disabling D-Bus:", exc_info=e)
2178
bus, do_not_queue=True)
2179
old_bus_name = (dbus.service.BusName
2180
("se.bsnet.fukt.Mandos", bus,
2181
do_not_queue=True))
2182
except dbus.exceptions.NameExistsException as e:
2183
logger.error(unicode(e) + ", disabling D-Bus")
3188
2184
use_dbus = False
3189
2185
server_settings["use_dbus"] = False
3190
2186
tcp_server.use_dbus = False
3191
if zeroconf:
3192
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3193
service = AvahiServiceToSyslog(
3194
name=server_settings["servicename"],
3195
servicetype="_mandos._tcp",
3196
protocol=protocol,
3197
bus=bus)
3198
if server_settings["interface"]:
3199
service.interface = if_nametoindex(
3200
server_settings["interface"].encode("utf-8"))
3201
2187
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2188
service = AvahiServiceToSyslog(name =
2189
server_settings["servicename"],
2190
servicetype = "_mandos._tcp",
2191
protocol = protocol, bus = bus)
2192
if server_settings["interface"]:
2193
service.interface = (if_nametoindex
2194
(str(server_settings["interface"])))
2195
3202
2196
global multiprocessing_manager
3203
2197
multiprocessing_manager = multiprocessing.Manager()
3204
2198
3205
2199
client_class = Client
3206
2200
if use_dbus:
3207
client_class = functools.partial(ClientDBus, bus=bus)
3208
2201
client_class = functools.partial(ClientDBusTransitional,
2202
bus = bus)
2203
3209
2204
client_settings = Client.config_parser(client_config)
3210
2205
old_client_settings = {}
3211
2206
clients_data = {}
3212
3213
# This is used to redirect stdout and stderr for checker processes
3214
global wnull
3215
wnull = open(os.devnull, "w") # A writable /dev/null
3216
# Only used if server is running in foreground but not in debug
3217
# mode
3218
if debug or not foreground:
3219
wnull.close()
3220
2207
3221
2208
# Get client data and settings from last running state.
3222
2209
if server_settings["restore"]:
3223
2210
try:
3224
2211
with open(stored_state_path, "rb") as stored_state:
3225
if sys.version_info.major == 2:
3226
clients_data, old_client_settings = pickle.load(
3227
stored_state)
3228
else:
3229
bytes_clients_data, bytes_old_client_settings = (
3230
pickle.load(stored_state, encoding="bytes"))
3231
# Fix bytes to strings
3232
# clients_data
3233
# .keys()
3234
clients_data = {(key.decode("utf-8")
3235
if isinstance(key, bytes)
3236
else key): value
3237
for key, value in
3238
bytes_clients_data.items()}
3239
del bytes_clients_data
3240
for key in clients_data:
3241
value = {(k.decode("utf-8")
3242
if isinstance(k, bytes) else k): v
3243
for k, v in
3244
clients_data[key].items()}
3245
clients_data[key] = value
3246
# .client_structure
3247
value["client_structure"] = [
3248
(s.decode("utf-8")
3249
if isinstance(s, bytes)
3250
else s) for s in
3251
value["client_structure"]]
3252
# .name, .host, and .checker_command
3253
for k in ("name", "host", "checker_command"):
3254
if isinstance(value[k], bytes):
3255
value[k] = value[k].decode("utf-8")
3256
if "key_id" not in value:
3257
value["key_id"] = ""
3258
elif "fingerprint" not in value:
3259
value["fingerprint"] = ""
3260
# old_client_settings
3261
# .keys()
3262
old_client_settings = {
3263
(key.decode("utf-8")
3264
if isinstance(key, bytes)
3265
else key): value
3266
for key, value in
3267
bytes_old_client_settings.items()}
3268
del bytes_old_client_settings
3269
# .host and .checker_command
3270
for value in old_client_settings.values():
3271
for attribute in ("host", "checker_command"):
3272
if isinstance(value[attribute], bytes):
3273
value[attribute] = (value[attribute]
3274
.decode("utf-8"))
2212
clients_data, old_client_settings = (pickle.load
2213
(stored_state))
3275
2214
os.remove(stored_state_path)
3276
2215
except IOError as e:
3277
if e.errno == errno.ENOENT:
3278
logger.warning("Could not load persistent state:"
3279
" {}".format(os.strerror(e.errno)))
3280
else:
3281
logger.critical("Could not load persistent state:",
3282
exc_info=e)
2216
logger.warning("Could not load persistent state: {0}"
2217
.format(e))
2218
if e.errno != errno.ENOENT:
3283
2219
raise
3284
2220
except EOFError as e:
3285
2221
logger.warning("Could not load persistent state: "
3286
"EOFError:",
3287
exc_info=e)
3288
2222
"EOFError: {0}".format(e))
2223
3289
2224
with PGPEngine() as pgp:
3290
for client_name, client in clients_data.items():
3291
# Skip removed clients
3292
if client_name not in client_settings:
3293
continue
3294
2225
for client_name, client in clients_data.iteritems():
3295
2226
# Decide which value to use after restoring saved state.
3296
2227
# We have three different values: Old config file,
3297
2228
# new config file, and saved state.
3302
2233
# For each value in new config, check if it
3303
2234
# differs from the old config value (Except for
3304
2235
# the "secret" attribute)
3305
if (name != "secret"
3306
and (value !=
3307
old_client_settings[client_name][name])):
2236
if (name != "secret" and
2237
value != old_client_settings[client_name]
2238
[name]):
3308
2239
client[name] = value
3309
2240
except KeyError:
3310
2241
pass
3311
2242
3312
2243
# Clients who has passed its expire date can still be
3313
# enabled if its last checker was successful. A Client
3314
# whose checker succeeded before we stored its state is
3315
# assumed to have successfully run all checkers during
3316
# downtime.
2244
# enabled if its last checker was successful. Clients
2245
# whose checker failed before we stored its state is
2246
# assumed to have failed all checkers during downtime.
3317
2247
if client["enabled"]:
3318
2248
if datetime.datetime.utcnow() >= client["expires"]:
3319
2249
if not client["last_checked_ok"]:
3320
2250
logger.warning(
3321
"disabling client {} - Client never "
3322
"performed a successful checker".format(
3323
client_name))
2251
"disabling client {0} - Client never "
2252
"performed a successfull checker"
2253
.format(client["name"]))
3324
2254
client["enabled"] = False
3325
2255
elif client["last_checker_status"] != 0:
3326
2256
logger.warning(
3327
"disabling client {} - Client last"
3328
" checker failed with error code"
3329
" {}".format(
3330
client_name,
3331
client["last_checker_status"]))
2257
"disabling client {0} - Client "
2258
"last checker failed with error code {1}"
2259
.format(client["name"],
2260
client["last_checker_status"]))
3332
2261
client["enabled"] = False
3333
2262
else:
3334
client["expires"] = (
3335
datetime.datetime.utcnow()
3336
+ client["timeout"])
3337
logger.debug("Last checker succeeded,"
3338
" keeping {} enabled".format(
3339
client_name))
2263
client["expires"] = (datetime.datetime
2264
.utcnow()
2265
+ client["timeout"])
2266
3340
2267
try:
3341
client["secret"] = pgp.decrypt(
3342
client["encrypted_secret"],
3343
client_settings[client_name]["secret"])
2268
client["secret"] = (
2269
pgp.decrypt(client["encrypted_secret"],
2270
client_settings[client_name]
2271
["secret"]))
3344
2272
except PGPError:
3345
2273
# If decryption fails, we use secret from new settings
3346
logger.debug("Failed to decrypt {} old secret".format(
3347
client_name))
3348
client["secret"] = (client_settings[client_name]
3349
["secret"])
2274
logger.debug("Failed to decrypt {0} old secret"
2275
.format(client_name))
2276
client["secret"] = (
2277
client_settings[client_name]["secret"])
3350
2278
2279
3351
2280
# Add/remove clients based on new changes made to config
3352
for client_name in (set(old_client_settings)
3353
- set(client_settings)):
2281
for client_name in set(old_client_settings) - set(client_settings):
3354
2282
del clients_data[client_name]
3355
for client_name in (set(client_settings)
3356
- set(old_client_settings)):
2283
for client_name in set(client_settings) - set(old_client_settings):
3357
2284
clients_data[client_name] = client_settings[client_name]
3358
2285
3359
# Create all client objects
3360
for client_name, client in clients_data.items():
2286
# Create clients all clients
2287
for client_name, client in clients_data.iteritems():
3361
2288
tcp_server.clients[client_name] = client_class(
3362
name=client_name,
3363
settings=client,
3364
server_settings=server_settings)
3365
2289
name = client_name, settings = client)
2290
3366
2291
if not tcp_server.clients:
3367
2292
logger.warning("No clients defined")
3368
3369
if not foreground:
3370
if pidfile is not None:
3371
pid = os.getpid()
3372
try:
3373
with pidfile:
3374
print(pid, file=pidfile)
3375
except IOError:
3376
logger.error("Could not write to file %r with PID %d",
3377
pidfilename, pid)
3378
del pidfile
2293
2294
if not debug:
2295
try:
2296
with pidfile:
2297
pid = os.getpid()
2298
pidfile.write(str(pid) + "\n".encode("utf-8"))
2299
del pidfile
2300
except IOError:
2301
logger.error("Could not write to file %r with PID %d",
2302
pidfilename, pid)
2303
except NameError:
2304
# "pidfile" was never created
2305
pass
3379
2306
del pidfilename
3380
3381
for termsig in (signal.SIGHUP, signal.SIGTERM):
3382
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3383
lambda: main_loop.quit() and False)
3384
2307
signal.signal(signal.SIGINT, signal.SIG_IGN)
2308
2309
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2310
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2311
3385
2312
if use_dbus:
3386
3387
@alternate_dbus_interfaces(
3388
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3389
class MandosDBusService(DBusObjectWithObjectManager):
2313
class MandosDBusService(dbus.service.Object):
3390
2314
"""A D-Bus proxy object"""
3391
3392
2315
def __init__(self):
3393
2316
dbus.service.Object.__init__(self, bus, "/")
3394
3395
2317
_interface = "se.recompile.Mandos"
3396
2318
3397
2319
@dbus.service.signal(_interface, signature="o")
3398
2320
def ClientAdded(self, objpath):
3399
2321
"D-Bus signal"
3400
2322
pass
3401
2323
3402
2324
@dbus.service.signal(_interface, signature="ss")
3403
def ClientNotFound(self, key_id, address):
2325
def ClientNotFound(self, fingerprint, address):
3404
2326
"D-Bus signal"
3405
2327
pass
3406
3407
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3408
"true"})
2328
3409
2329
@dbus.service.signal(_interface, signature="os")
3410
2330
def ClientRemoved(self, objpath, name):
3411
2331
"D-Bus signal"
3412
2332
pass
3413
3414
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3415
"true"})
2333
3416
2334
@dbus.service.method(_interface, out_signature="ao")
3417
2335
def GetAllClients(self):
3418
2336
"D-Bus method"
3419
return dbus.Array(c.dbus_object_path for c in
3420
tcp_server.clients.values())
3421
3422
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3423
"true"})
2337
return dbus.Array(c.dbus_object_path
2338
for c in
2339
tcp_server.clients.itervalues())
2340
3424
2341
@dbus.service.method(_interface,
3425
2342
out_signature="a{oa{sv}}")
3426
2343
def GetAllClientsWithProperties(self):
3427
2344
"D-Bus method"
3428
2345
return dbus.Dictionary(
3429
{c.dbus_object_path: c.GetAll(
3430
"se.recompile.Mandos.Client")
3431
for c in tcp_server.clients.values()},
2346
((c.dbus_object_path, c.GetAll(""))
2347
for c in tcp_server.clients.itervalues()),
3432
2348
signature="oa{sv}")
3433
2349
3434
2350
@dbus.service.method(_interface, in_signature="o")
3435
2351
def RemoveClient(self, object_path):
3436
2352
"D-Bus method"
3437
for c in tcp_server.clients.values():
2353
for c in tcp_server.clients.itervalues():
3438
2354
if c.dbus_object_path == object_path:
3439
2355
del tcp_server.clients[c.name]
3440
2356
c.remove_from_connection()
3441
# Don't signal the disabling
2357
# Don't signal anything except ClientRemoved
3442
2358
c.disable(quiet=True)
3443
# Emit D-Bus signal for removal
3444
self.client_removed_signal(c)
2359
# Emit D-Bus signal
2360
self.ClientRemoved(object_path, c.name)
3445
2361
return
3446
2362
raise KeyError(object_path)
3447
2363
3448
2364
del _interface
3449
3450
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3451
out_signature="a{oa{sa{sv}}}")
3452
def GetManagedObjects(self):
3453
"""D-Bus method"""
3454
return dbus.Dictionary(
3455
{client.dbus_object_path:
3456
dbus.Dictionary(
3457
{interface: client.GetAll(interface)
3458
for interface in
3459
client._get_all_interface_names()})
3460
for client in tcp_server.clients.values()})
3461
3462
def client_added_signal(self, client):
3463
"""Send the new standard signal and the old signal"""
3464
if use_dbus:
3465
# New standard signal
3466
self.InterfacesAdded(
3467
client.dbus_object_path,
3468
dbus.Dictionary(
3469
{interface: client.GetAll(interface)
3470
for interface in
3471
client._get_all_interface_names()}))
3472
# Old signal
3473
self.ClientAdded(client.dbus_object_path)
3474
3475
def client_removed_signal(self, client):
3476
"""Send the new standard signal and the old signal"""
3477
if use_dbus:
3478
# New standard signal
3479
self.InterfacesRemoved(
3480
client.dbus_object_path,
3481
client._get_all_interface_names())
3482
# Old signal
3483
self.ClientRemoved(client.dbus_object_path,
3484
client.name)
3485
3486
mandos_dbus_service = MandosDBusService()
3487
3488
# Save modules to variables to exempt the modules from being
3489
# unloaded before the function registered with atexit() is run.
3490
mp = multiprocessing
3491
wn = wnull
3492
2365
2366
class MandosDBusServiceTransitional(MandosDBusService):
2367
__metaclass__ = AlternateDBusNamesMetaclass
2368
mandos_dbus_service = MandosDBusServiceTransitional()
2369
3493
2370
def cleanup():
3494
2371
"Cleanup function; run on exit"
3495
if zeroconf:
3496
service.cleanup()
3497
3498
mp.active_children()
3499
wn.close()
2372
service.cleanup()
2373
2374
multiprocessing.active_children()
3500
2375
if not (tcp_server.clients or client_settings):
3501
2376
return
3502
2377
3503
2378
# Store client before exiting. Secrets are encrypted with key
3504
2379
# based on what config file has. If config file is
3505
2380
# removed/edited, old secret will thus be unrecovable.
3506
2381
clients = {}
3507
2382
with PGPEngine() as pgp:
3508
for client in tcp_server.clients.values():
2383
for client in tcp_server.clients.itervalues():
3509
2384
key = client_settings[client.name]["secret"]
3510
2385
client.encrypted_secret = pgp.encrypt(client.secret,
3511
2386
key)
3512
2387
client_dict = {}
3513
2388
3514
2389
# A list of attributes that can not be pickled
3515
2390
# + secret.
3516
exclude = {"bus", "changedstate", "secret",
3517
"checker", "server_settings"}
3518
for name, typ in inspect.getmembers(dbus.service
3519
.Object):
2391
exclude = set(("bus", "changedstate", "secret",
2392
"checker"))
2393
for name, typ in (inspect.getmembers
2394
(dbus.service.Object)):
3520
2395
exclude.add(name)
3521
2396
3522
2397
client_dict["encrypted_secret"] = (client
3523
2398
.encrypted_secret)
3524
2399
for attr in client.client_structure:
3525
2400
if attr not in exclude:
3526
2401
client_dict[attr] = getattr(client, attr)
3527
2402
3528
2403
clients[client.name] = client_dict
3529
2404
del client_settings[client.name]["secret"]
3530
2405
3531
2406
try:
3532
with tempfile.NamedTemporaryFile(
3533
mode='wb',
3534
suffix=".pickle",
3535
prefix='clients-',
3536
dir=os.path.dirname(stored_state_path),
3537
delete=False) as stored_state:
3538
pickle.dump((clients, client_settings), stored_state,
3539
protocol=2)
3540
tempname = stored_state.name
2407
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2408
prefix="clients-",
2409
dir=os.path.dirname
2410
(stored_state_path))
2411
with os.fdopen(tempfd, "wb") as stored_state:
2412
pickle.dump((clients, client_settings), stored_state)
3541
2413
os.rename(tempname, stored_state_path)
3542
2414
except (IOError, OSError) as e:
2415
logger.warning("Could not save persistent state: {0}"
2416
.format(e))
3543
2417
if not debug:
3544
2418
try:
3545
2419
os.remove(tempname)
3546
2420
except NameError:
3547
2421
pass
3548
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3549
logger.warning("Could not save persistent state: {}"
3550
.format(os.strerror(e.errno)))
3551
else:
3552
logger.warning("Could not save persistent state:",
3553
exc_info=e)
3554
raise
3555
2422
if e.errno not in set((errno.ENOENT, errno.EACCES,
2423
errno.EEXIST)):
2424
raise e
2425
3556
2426
# Delete all clients, and settings from config
3557
2427
while tcp_server.clients:
3558
2428
name, client = tcp_server.clients.popitem()
3559
2429
if use_dbus:
3560
2430
client.remove_from_connection()
3561
# Don't signal the disabling
2431
# Don't signal anything except ClientRemoved
3562
2432
client.disable(quiet=True)
3563
# Emit D-Bus signal for removal
3564
2433
if use_dbus:
3565
mandos_dbus_service.client_removed_signal(client)
2434
# Emit D-Bus signal
2435
mandos_dbus_service.ClientRemoved(client
2436
.dbus_object_path,
2437
client.name)
3566
2438
client_settings.clear()
3567
2439
3568
2440
atexit.register(cleanup)
3569
3570
for client in tcp_server.clients.values():
2441
2442
for client in tcp_server.clients.itervalues():
3571
2443
if use_dbus:
3572
# Emit D-Bus signal for adding
3573
mandos_dbus_service.client_added_signal(client)
2444
# Emit D-Bus signal
2445
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3574
2446
# Need to initiate checking of clients
3575
2447
if client.enabled:
3576
2448
client.init_checker()
3577
2449
3578
2450
tcp_server.enable()
3579
2451
tcp_server.server_activate()
3580
2452
3581
2453
# Find out what port we got
3582
if zeroconf:
3583
service.port = tcp_server.socket.getsockname()[1]
2454
service.port = tcp_server.socket.getsockname()[1]
3584
2455
if use_ipv6:
3585
2456
logger.info("Now listening on address %r, port %d,"
3586
" flowinfo %d, scope_id %d",
3587
*tcp_server.socket.getsockname())
2457
" flowinfo %d, scope_id %d"
2458
% tcp_server.socket.getsockname())
3588
2459
else: # IPv4
3589
logger.info("Now listening on address %r, port %d",
3590
*tcp_server.socket.getsockname())
3591
3592
# service.interface = tcp_server.socket.getsockname()[3]
3593
2460
logger.info("Now listening on address %r, port %d"
2461
% tcp_server.socket.getsockname())
2462
2463
#service.interface = tcp_server.socket.getsockname()[3]
2464
3594
2465
try:
3595
if zeroconf:
3596
# From the Avahi example code
3597
try:
3598
service.activate()
3599
except dbus.exceptions.DBusException as error:
3600
logger.critical("D-Bus Exception", exc_info=error)
3601
cleanup()
3602
sys.exit(1)
3603
# End of Avahi example code
3604
3605
GLib.io_add_watch(
3606
GLib.IOChannel.unix_new(tcp_server.fileno()),
3607
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3608
lambda *args, **kwargs: (tcp_server.handle_request
3609
(*args[2:], **kwargs) or True))
3610
2466
# From the Avahi example code
2467
try:
2468
service.activate()
2469
except dbus.exceptions.DBusException as error:
2470
logger.critical("DBusException: %s", error)
2471
cleanup()
2472
sys.exit(1)
2473
# End of Avahi example code
2474
2475
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2476
lambda *args, **kwargs:
2477
(tcp_server.handle_request
2478
(*args[2:], **kwargs) or True))
2479
3611
2480
logger.debug("Starting main loop")
3612
2481
main_loop.run()
3613
2482
except AvahiError as error:
3614
logger.critical("Avahi Error", exc_info=error)
2483
logger.critical("AvahiError: %s", error)
3615
2484
cleanup()
3616
2485
sys.exit(1)
3617
2486
except KeyboardInterrupt:
3622
2491
# Must run before the D-Bus bus name gets deregistered
3623
2492
cleanup()
3624
2493
3625
3626
def should_only_run_tests():
3627
parser = argparse.ArgumentParser(add_help=False)
3628
parser.add_argument("--check", action='store_true')
3629
args, unknown_args = parser.parse_known_args()
3630
run_tests = args.check
3631
if run_tests:
3632
# Remove --check argument from sys.argv
3633
sys.argv[1:] = unknown_args
3634
return run_tests
3635
3636
# Add all tests from doctest strings
3637
def load_tests(loader, tests, none):
3638
import doctest
3639
tests.addTests(doctest.DocTestSuite())
3640
return tests
3641
3642
2494
if __name__ == '__main__':
3643
try:
3644
if should_only_run_tests():
3645
# Call using ./mandos --check [--verbose]
3646
unittest.main()
3647
else:
3648
main()
3649
finally:
3650
logging.shutdown()
2495
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0