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- Committer: Teddy Hogeborn
- Date: 2011-12-31 23:05:34 UTC
- Revision ID: teddy@recompile.se-20111231230534-o5w0uhwx30gwhmk7
Updated year in copyright notices.
- files added:
- initramfs-tools-hook-conf
- files removed:
- bugs.xml
- debian/tests
- debian/upstream
- dracut-module
- plugin-helpers
- files modified:
- .bzrignore
added
removed
mandos
1
#!/usr/bin/python3 -bI
2
# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); coding: utf-8 -*-
3
#
1
#!/usr/bin/python
2
# -*- mode: python; coding: utf-8 -*-
3
#
4
4
# Mandos server - give out binary blobs to connecting clients.
5
#
5
#
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
9
# methods "add", "remove", "server_state_changed",
10
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
11
# "AvahiService" class, and some lines in "main".
12
#
12
#
13
13
# Everything else is
14
# Copyright © 2008-2020 Teddy Hogeborn
15
# Copyright © 2008-2020 Björn Påhlsson
16
#
17
# This file is part of Mandos.
18
#
19
# Mandos is free software: you can redistribute it and/or modify it
20
# under the terms of the GNU General Public License as published by
14
# Copyright © 2008-2012 Teddy Hogeborn
15
# Copyright © 2008-2012 Björn Påhlsson
16
#
17
# This program is free software: you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
21
19
# the Free Software Foundation, either version 3 of the License, or
22
20
# (at your option) any later version.
23
21
#
24
# Mandos is distributed in the hope that it will be useful, but
25
# WITHOUT ANY WARRANTY; without even the implied warranty of
22
# This program is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
26
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27
25
# GNU General Public License for more details.
28
#
26
#
29
27
# You should have received a copy of the GNU General Public License
30
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
31
#
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
30
#
32
31
# Contact the authors at <mandos@recompile.se>.
33
#
32
#
34
33
35
34
from __future__ import (division, absolute_import, print_function,
36
35
unicode_literals)
37
36
38
try:
39
from future_builtins import *
40
except ImportError:
41
pass
42
43
try:
44
import SocketServer as socketserver
45
except ImportError:
46
import socketserver
37
import SocketServer as socketserver
47
38
import socket
48
39
import argparse
49
40
import datetime
50
41
import errno
51
try:
52
import ConfigParser as configparser
53
except ImportError:
54
import configparser
42
import gnutls.crypto
43
import gnutls.connection
44
import gnutls.errors
45
import gnutls.library.functions
46
import gnutls.library.constants
47
import gnutls.library.types
48
import ConfigParser as configparser
55
49
import sys
56
50
import re
57
51
import os
66
60
import struct
67
61
import fcntl
68
62
import functools
69
try:
70
import cPickle as pickle
71
except ImportError:
72
import pickle
63
import cPickle as pickle
73
64
import multiprocessing
74
65
import types
75
66
import binascii
76
67
import tempfile
77
import itertools
78
import collections
79
import codecs
80
import unittest
81
import random
82
import shlex
83
68
84
69
import dbus
85
70
import dbus.service
86
import gi
87
from gi.repository import GLib
71
import gobject
72
import avahi
88
73
from dbus.mainloop.glib import DBusGMainLoop
89
74
import ctypes
90
75
import ctypes.util
91
76
import xml.dom.minidom
92
77
import inspect
93
94
if sys.version_info.major == 2:
95
__metaclass__ = type
96
str = unicode
97
98
# Add collections.abc.Callable if it does not exist
99
try:
100
collections.abc.Callable
101
except AttributeError:
102
class abc:
103
Callable = collections.Callable
104
collections.abc = abc
105
del abc
106
107
# Add shlex.quote if it does not exist
108
try:
109
shlex.quote
110
except AttributeError:
111
shlex.quote = re.escape
112
113
# Show warnings by default
114
if not sys.warnoptions:
115
import warnings
116
warnings.simplefilter("default")
117
118
# Try to find the value of SO_BINDTODEVICE:
119
try:
120
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
121
# newer, and it is also the most natural place for it:
78
import GnuPGInterface
79
80
try:
122
81
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
123
82
except AttributeError:
124
83
try:
125
# This is where SO_BINDTODEVICE was up to and including Python
126
# 2.6, and also 3.2:
127
84
from IN import SO_BINDTODEVICE
128
85
except ImportError:
129
# In Python 2.7 it seems to have been removed entirely.
130
# Try running the C preprocessor:
131
try:
132
cc = subprocess.Popen(["cc", "--language=c", "-E",
133
"/dev/stdin"],
134
stdin=subprocess.PIPE,
135
stdout=subprocess.PIPE)
136
stdout = cc.communicate(
137
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
138
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
139
except (OSError, ValueError, IndexError):
140
# No value found
141
SO_BINDTODEVICE = None
142
143
if sys.version_info < (3, 2):
144
configparser.Configparser = configparser.SafeConfigParser
145
146
version = "1.8.12"
86
SO_BINDTODEVICE = None
87
88
version = "1.4.1"
147
89
stored_state_file = "clients.pickle"
148
90
149
91
logger = logging.getLogger()
150
logging.captureWarnings(True) # Show warnings via the logging system
151
syslogger = None
92
syslogger = (logging.handlers.SysLogHandler
93
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
address = str("/dev/log")))
152
95
153
96
try:
154
if_nametoindex = ctypes.cdll.LoadLibrary(
155
ctypes.util.find_library("c")).if_nametoindex
97
if_nametoindex = (ctypes.cdll.LoadLibrary
98
(ctypes.util.find_library("c"))
99
.if_nametoindex)
156
100
except (OSError, AttributeError):
157
158
101
def if_nametoindex(interface):
159
102
"Get an interface index the hard way, i.e. using fcntl()"
160
103
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
161
104
with contextlib.closing(socket.socket()) as s:
162
105
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
163
struct.pack(b"16s16x", interface))
164
interface_index = struct.unpack("I", ifreq[16:20])[0]
106
struct.pack(str("16s16x"),
107
interface))
108
interface_index = struct.unpack(str("I"),
109
ifreq[16:20])[0]
165
110
return interface_index
166
111
167
112
168
def copy_function(func):
169
"""Make a copy of a function"""
170
if sys.version_info.major == 2:
171
return types.FunctionType(func.func_code,
172
func.func_globals,
173
func.func_name,
174
func.func_defaults,
175
func.func_closure)
176
else:
177
return types.FunctionType(func.__code__,
178
func.__globals__,
179
func.__name__,
180
func.__defaults__,
181
func.__closure__)
182
183
184
113
def initlogger(debug, level=logging.WARNING):
185
114
"""init logger and add loglevel"""
186
187
global syslogger
188
syslogger = (logging.handlers.SysLogHandler(
189
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
190
address="/dev/log"))
115
191
116
syslogger.setFormatter(logging.Formatter
192
117
('Mandos [%(process)d]: %(levelname)s:'
193
118
' %(message)s'))
194
119
logger.addHandler(syslogger)
195
120
196
121
if debug:
197
122
console = logging.StreamHandler()
198
123
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
208
133
pass
209
134
210
135
211
class PGPEngine:
136
class PGPEngine(object):
212
137
"""A simple class for OpenPGP symmetric encryption & decryption"""
213
214
138
def __init__(self):
139
self.gnupg = GnuPGInterface.GnuPG()
215
140
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
216
self.gpg = "gpg"
217
try:
218
output = subprocess.check_output(["gpgconf"])
219
for line in output.splitlines():
220
name, text, path = line.split(b":")
221
if name == b"gpg":
222
self.gpg = path
223
break
224
except OSError as e:
225
if e.errno != errno.ENOENT:
226
raise
227
self.gnupgargs = ['--batch',
228
'--homedir', self.tempdir,
229
'--force-mdc',
230
'--quiet']
231
# Only GPG version 1 has the --no-use-agent option.
232
if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):
233
self.gnupgargs.append("--no-use-agent")
234
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
235
148
def __enter__(self):
236
149
return self
237
238
def __exit__(self, exc_type, exc_value, traceback):
150
151
def __exit__ (self, exc_type, exc_value, traceback):
239
152
self._cleanup()
240
153
return False
241
154
242
155
def __del__(self):
243
156
self._cleanup()
244
157
245
158
def _cleanup(self):
246
159
if self.tempdir is not None:
247
160
# Delete contents of tempdir
248
161
for root, dirs, files in os.walk(self.tempdir,
249
topdown=False):
162
topdown = False):
250
163
for filename in files:
251
164
os.remove(os.path.join(root, filename))
252
165
for dirname in dirs:
254
167
# Remove tempdir
255
168
os.rmdir(self.tempdir)
256
169
self.tempdir = None
257
170
258
171
def password_encode(self, password):
259
172
# Passphrase can not be empty and can not contain newlines or
260
173
# NUL bytes. So we prefix it and hex encode it.
261
encoded = b"mandos" + binascii.hexlify(password)
262
if len(encoded) > 2048:
263
# GnuPG can't handle long passwords, so encode differently
264
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
265
.replace(b"\n", b"\\n")
266
.replace(b"\0", b"\\x00"))
267
return encoded
268
174
return b"mandos" + binascii.hexlify(password)
175
269
176
def encrypt(self, data, password):
270
passphrase = self.password_encode(password)
271
with tempfile.NamedTemporaryFile(
272
dir=self.tempdir) as passfile:
273
passfile.write(passphrase)
274
passfile.flush()
275
proc = subprocess.Popen([self.gpg, '--symmetric',
276
'--passphrase-file',
277
passfile.name]
278
+ self.gnupgargs,
279
stdin=subprocess.PIPE,
280
stdout=subprocess.PIPE,
281
stderr=subprocess.PIPE)
282
ciphertext, err = proc.communicate(input=data)
283
if proc.returncode != 0:
284
raise PGPError(err)
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
285
191
return ciphertext
286
192
287
193
def decrypt(self, data, password):
288
passphrase = self.password_encode(password)
289
with tempfile.NamedTemporaryFile(
290
dir=self.tempdir) as passfile:
291
passfile.write(passphrase)
292
passfile.flush()
293
proc = subprocess.Popen([self.gpg, '--decrypt',
294
'--passphrase-file',
295
passfile.name]
296
+ self.gnupgargs,
297
stdin=subprocess.PIPE,
298
stdout=subprocess.PIPE,
299
stderr=subprocess.PIPE)
300
decrypted_plaintext, err = proc.communicate(input=data)
301
if proc.returncode != 0:
302
raise PGPError(err)
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
303
208
return decrypted_plaintext
304
209
305
210
306
# Pretend that we have an Avahi module
307
class avahi:
308
"""This isn't so much a class as it is a module-like namespace."""
309
IF_UNSPEC = -1 # avahi-common/address.h
310
PROTO_UNSPEC = -1 # avahi-common/address.h
311
PROTO_INET = 0 # avahi-common/address.h
312
PROTO_INET6 = 1 # avahi-common/address.h
313
DBUS_NAME = "org.freedesktop.Avahi"
314
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
315
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
316
DBUS_PATH_SERVER = "/"
317
318
@staticmethod
319
def string_array_to_txt_array(t):
320
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
321
for s in t), signature="ay")
322
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
323
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
324
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
325
SERVER_INVALID = 0 # avahi-common/defs.h
326
SERVER_REGISTERING = 1 # avahi-common/defs.h
327
SERVER_RUNNING = 2 # avahi-common/defs.h
328
SERVER_COLLISION = 3 # avahi-common/defs.h
329
SERVER_FAILURE = 4 # avahi-common/defs.h
330
331
211
332
212
class AvahiError(Exception):
333
213
def __init__(self, value, *args, **kwargs):
334
214
self.value = value
335
return super(AvahiError, self).__init__(value, *args,
336
**kwargs)
337
215
super(AvahiError, self).__init__(value, *args, **kwargs)
216
def __unicode__(self):
217
return unicode(repr(self.value))
338
218
339
219
class AvahiServiceError(AvahiError):
340
220
pass
341
221
342
343
222
class AvahiGroupError(AvahiError):
344
223
pass
345
224
346
225
347
class AvahiService:
226
class AvahiService(object):
348
227
"""An Avahi (Zeroconf) service.
349
228
350
229
Attributes:
351
230
interface: integer; avahi.IF_UNSPEC or an interface index.
352
231
Used to optionally bind to the specified interface.
353
232
name: string; Example: 'Mandos'
354
233
type: string; Example: '_mandos._tcp'.
355
See <https://www.iana.org/assignments/service-names-port-numbers>
234
See <http://www.dns-sd.org/ServiceTypes.html>
356
235
port: integer; what port to announce
357
236
TXT: list of strings; TXT record for the service
358
237
domain: string; Domain to publish on, default to .local if empty.
364
243
server: D-Bus Server
365
244
bus: dbus.SystemBus()
366
245
"""
367
368
def __init__(self,
369
interface=avahi.IF_UNSPEC,
370
name=None,
371
servicetype=None,
372
port=None,
373
TXT=None,
374
domain="",
375
host="",
376
max_renames=32768,
377
protocol=avahi.PROTO_UNSPEC,
378
bus=None):
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):
379
250
self.interface = interface
380
251
self.name = name
381
252
self.type = servicetype
390
261
self.server = None
391
262
self.bus = bus
392
263
self.entry_group_state_changed_match = None
393
394
def rename(self, remove=True):
264
def rename(self):
395
265
"""Derived from the Avahi example code"""
396
266
if self.rename_count >= self.max_renames:
397
267
logger.critical("No suitable Zeroconf service name found"
398
268
" after %i retries, exiting.",
399
269
self.rename_count)
400
270
raise AvahiServiceError("Too many renames")
401
self.name = str(
402
self.server.GetAlternativeServiceName(self.name))
403
self.rename_count += 1
271
self.name = unicode(self.server
272
.GetAlternativeServiceName(self.name))
404
273
logger.info("Changing Zeroconf service name to %r ...",
405
274
self.name)
406
if remove:
407
self.remove()
275
self.remove()
408
276
try:
409
277
self.add()
410
278
except dbus.exceptions.DBusException as error:
411
if (error.get_dbus_name()
412
== "org.freedesktop.Avahi.CollisionError"):
413
logger.info("Local Zeroconf service name collision.")
414
return self.rename(remove=False)
415
else:
416
logger.critical("D-Bus Exception", exc_info=error)
417
self.cleanup()
418
os._exit(1)
419
279
logger.critical("DBusException: %s", error)
280
self.cleanup()
281
os._exit(1)
282
self.rename_count += 1
420
283
def remove(self):
421
284
"""Derived from the Avahi example code"""
422
285
if self.entry_group_state_changed_match is not None:
424
287
self.entry_group_state_changed_match = None
425
288
if self.group is not None:
426
289
self.group.Reset()
427
428
290
def add(self):
429
291
"""Derived from the Avahi example code"""
430
292
self.remove()
447
309
dbus.UInt16(self.port),
448
310
avahi.string_array_to_txt_array(self.TXT))
449
311
self.group.Commit()
450
451
312
def entry_group_state_changed(self, state, error):
452
313
"""Derived from the Avahi example code"""
453
314
logger.debug("Avahi entry group state change: %i", state)
454
315
455
316
if state == avahi.ENTRY_GROUP_ESTABLISHED:
456
317
logger.debug("Zeroconf service established.")
457
318
elif state == avahi.ENTRY_GROUP_COLLISION:
459
320
self.rename()
460
321
elif state == avahi.ENTRY_GROUP_FAILURE:
461
322
logger.critical("Avahi: Error in group state changed %s",
462
str(error))
463
raise AvahiGroupError("State changed: {!s}".format(error))
464
323
unicode(error))
324
raise AvahiGroupError("State changed: %s"
325
% unicode(error))
465
326
def cleanup(self):
466
327
"""Derived from the Avahi example code"""
467
328
if self.group is not None:
472
333
pass
473
334
self.group = None
474
335
self.remove()
475
476
336
def server_state_changed(self, state, error=None):
477
337
"""Derived from the Avahi example code"""
478
338
logger.debug("Avahi server state change: %i", state)
479
bad_states = {
480
avahi.SERVER_INVALID: "Zeroconf server invalid",
481
avahi.SERVER_REGISTERING: None,
482
avahi.SERVER_COLLISION: "Zeroconf server name collision",
483
avahi.SERVER_FAILURE: "Zeroconf server failure",
484
}
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" }
485
346
if state in bad_states:
486
347
if bad_states[state] is not None:
487
348
if error is None:
490
351
logger.error(bad_states[state] + ": %r", error)
491
352
self.cleanup()
492
353
elif state == avahi.SERVER_RUNNING:
493
try:
494
self.add()
495
except dbus.exceptions.DBusException as error:
496
if (error.get_dbus_name()
497
== "org.freedesktop.Avahi.CollisionError"):
498
logger.info("Local Zeroconf service name"
499
" collision.")
500
return self.rename(remove=False)
501
else:
502
logger.critical("D-Bus Exception", exc_info=error)
503
self.cleanup()
504
os._exit(1)
354
self.add()
505
355
else:
506
356
if error is None:
507
357
logger.debug("Unknown state: %r", state)
508
358
else:
509
359
logger.debug("Unknown state: %r: %r", state, error)
510
511
360
def activate(self):
512
361
"""Derived from the Avahi example code"""
513
362
if self.server is None:
517
366
follow_name_owner_changes=True),
518
367
avahi.DBUS_INTERFACE_SERVER)
519
368
self.server.connect_to_signal("StateChanged",
520
self.server_state_changed)
369
self.server_state_changed)
521
370
self.server_state_changed(self.server.GetState())
522
371
523
524
372
class AvahiServiceToSyslog(AvahiService):
525
def rename(self, *args, **kwargs):
373
def rename(self):
526
374
"""Add the new name to the syslog messages"""
527
ret = super(AvahiServiceToSyslog, self).rename(*args,
528
**kwargs)
529
syslogger.setFormatter(logging.Formatter(
530
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
531
.format(self.name)))
375
ret = AvahiService.rename(self)
376
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
379
% self.name))
532
380
return ret
533
381
534
535
# Pretend that we have a GnuTLS module
536
class gnutls:
537
"""This isn't so much a class as it is a module-like namespace."""
538
539
library = ctypes.util.find_library("gnutls")
540
if library is None:
541
library = ctypes.util.find_library("gnutls-deb0")
542
_library = ctypes.cdll.LoadLibrary(library)
543
del library
544
545
# Unless otherwise indicated, the constants and types below are
546
# all from the gnutls/gnutls.h C header file.
547
548
# Constants
549
E_SUCCESS = 0
550
E_INTERRUPTED = -52
551
E_AGAIN = -28
552
CRT_OPENPGP = 2
553
CRT_RAWPK = 3
554
CLIENT = 2
555
SHUT_RDWR = 0
556
CRD_CERTIFICATE = 1
557
E_NO_CERTIFICATE_FOUND = -49
558
X509_FMT_DER = 0
559
NO_TICKETS = 1<<10
560
ENABLE_RAWPK = 1<<18
561
CTYPE_PEERS = 3
562
KEYID_USE_SHA256 = 1 # gnutls/x509.h
563
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
564
565
# Types
566
class session_int(ctypes.Structure):
567
_fields_ = []
568
session_t = ctypes.POINTER(session_int)
569
570
class certificate_credentials_st(ctypes.Structure):
571
_fields_ = []
572
certificate_credentials_t = ctypes.POINTER(
573
certificate_credentials_st)
574
certificate_type_t = ctypes.c_int
575
576
class datum_t(ctypes.Structure):
577
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
578
('size', ctypes.c_uint)]
579
580
class openpgp_crt_int(ctypes.Structure):
581
_fields_ = []
582
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
583
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
584
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
585
credentials_type_t = ctypes.c_int
586
transport_ptr_t = ctypes.c_void_p
587
close_request_t = ctypes.c_int
588
589
# Exceptions
590
class Error(Exception):
591
def __init__(self, message=None, code=None, args=()):
592
# Default usage is by a message string, but if a return
593
# code is passed, convert it to a string with
594
# gnutls.strerror()
595
self.code = code
596
if message is None and code is not None:
597
message = gnutls.strerror(code)
598
return super(gnutls.Error, self).__init__(
599
message, *args)
600
601
class CertificateSecurityError(Error):
602
pass
603
604
# Classes
605
class Credentials:
606
def __init__(self):
607
self._c_object = gnutls.certificate_credentials_t()
608
gnutls.certificate_allocate_credentials(
609
ctypes.byref(self._c_object))
610
self.type = gnutls.CRD_CERTIFICATE
611
612
def __del__(self):
613
gnutls.certificate_free_credentials(self._c_object)
614
615
class ClientSession:
616
def __init__(self, socket, credentials=None):
617
self._c_object = gnutls.session_t()
618
gnutls_flags = gnutls.CLIENT
619
if gnutls.check_version(b"3.5.6"):
620
gnutls_flags |= gnutls.NO_TICKETS
621
if gnutls.has_rawpk:
622
gnutls_flags |= gnutls.ENABLE_RAWPK
623
gnutls.init(ctypes.byref(self._c_object), gnutls_flags)
624
del gnutls_flags
625
gnutls.set_default_priority(self._c_object)
626
gnutls.transport_set_ptr(self._c_object, socket.fileno())
627
gnutls.handshake_set_private_extensions(self._c_object,
628
True)
629
self.socket = socket
630
if credentials is None:
631
credentials = gnutls.Credentials()
632
gnutls.credentials_set(self._c_object, credentials.type,
633
ctypes.cast(credentials._c_object,
634
ctypes.c_void_p))
635
self.credentials = credentials
636
637
def __del__(self):
638
gnutls.deinit(self._c_object)
639
640
def handshake(self):
641
return gnutls.handshake(self._c_object)
642
643
def send(self, data):
644
data = bytes(data)
645
data_len = len(data)
646
while data_len > 0:
647
data_len -= gnutls.record_send(self._c_object,
648
data[-data_len:],
649
data_len)
650
651
def bye(self):
652
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
653
654
# Error handling functions
655
def _error_code(result):
656
"""A function to raise exceptions on errors, suitable
657
for the 'restype' attribute on ctypes functions"""
658
if result >= 0:
659
return result
660
if result == gnutls.E_NO_CERTIFICATE_FOUND:
661
raise gnutls.CertificateSecurityError(code=result)
662
raise gnutls.Error(code=result)
663
664
def _retry_on_error(result, func, arguments):
665
"""A function to retry on some errors, suitable
666
for the 'errcheck' attribute on ctypes functions"""
667
while result < 0:
668
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
669
return _error_code(result)
670
result = func(*arguments)
671
return result
672
673
# Unless otherwise indicated, the function declarations below are
674
# all from the gnutls/gnutls.h C header file.
675
676
# Functions
677
priority_set_direct = _library.gnutls_priority_set_direct
678
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
679
ctypes.POINTER(ctypes.c_char_p)]
680
priority_set_direct.restype = _error_code
681
682
init = _library.gnutls_init
683
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
684
init.restype = _error_code
685
686
set_default_priority = _library.gnutls_set_default_priority
687
set_default_priority.argtypes = [session_t]
688
set_default_priority.restype = _error_code
689
690
record_send = _library.gnutls_record_send
691
record_send.argtypes = [session_t, ctypes.c_void_p,
692
ctypes.c_size_t]
693
record_send.restype = ctypes.c_ssize_t
694
record_send.errcheck = _retry_on_error
695
696
certificate_allocate_credentials = (
697
_library.gnutls_certificate_allocate_credentials)
698
certificate_allocate_credentials.argtypes = [
699
ctypes.POINTER(certificate_credentials_t)]
700
certificate_allocate_credentials.restype = _error_code
701
702
certificate_free_credentials = (
703
_library.gnutls_certificate_free_credentials)
704
certificate_free_credentials.argtypes = [
705
certificate_credentials_t]
706
certificate_free_credentials.restype = None
707
708
handshake_set_private_extensions = (
709
_library.gnutls_handshake_set_private_extensions)
710
handshake_set_private_extensions.argtypes = [session_t,
711
ctypes.c_int]
712
handshake_set_private_extensions.restype = None
713
714
credentials_set = _library.gnutls_credentials_set
715
credentials_set.argtypes = [session_t, credentials_type_t,
716
ctypes.c_void_p]
717
credentials_set.restype = _error_code
718
719
strerror = _library.gnutls_strerror
720
strerror.argtypes = [ctypes.c_int]
721
strerror.restype = ctypes.c_char_p
722
723
certificate_type_get = _library.gnutls_certificate_type_get
724
certificate_type_get.argtypes = [session_t]
725
certificate_type_get.restype = _error_code
726
727
certificate_get_peers = _library.gnutls_certificate_get_peers
728
certificate_get_peers.argtypes = [session_t,
729
ctypes.POINTER(ctypes.c_uint)]
730
certificate_get_peers.restype = ctypes.POINTER(datum_t)
731
732
global_set_log_level = _library.gnutls_global_set_log_level
733
global_set_log_level.argtypes = [ctypes.c_int]
734
global_set_log_level.restype = None
735
736
global_set_log_function = _library.gnutls_global_set_log_function
737
global_set_log_function.argtypes = [log_func]
738
global_set_log_function.restype = None
739
740
deinit = _library.gnutls_deinit
741
deinit.argtypes = [session_t]
742
deinit.restype = None
743
744
handshake = _library.gnutls_handshake
745
handshake.argtypes = [session_t]
746
handshake.restype = _error_code
747
handshake.errcheck = _retry_on_error
748
749
transport_set_ptr = _library.gnutls_transport_set_ptr
750
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
751
transport_set_ptr.restype = None
752
753
bye = _library.gnutls_bye
754
bye.argtypes = [session_t, close_request_t]
755
bye.restype = _error_code
756
bye.errcheck = _retry_on_error
757
758
check_version = _library.gnutls_check_version
759
check_version.argtypes = [ctypes.c_char_p]
760
check_version.restype = ctypes.c_char_p
761
762
_need_version = b"3.3.0"
763
if check_version(_need_version) is None:
764
raise self.Error("Needs GnuTLS {} or later"
765
.format(_need_version))
766
767
_tls_rawpk_version = b"3.6.6"
768
has_rawpk = bool(check_version(_tls_rawpk_version))
769
770
if has_rawpk:
771
# Types
772
class pubkey_st(ctypes.Structure):
773
_fields = []
774
pubkey_t = ctypes.POINTER(pubkey_st)
775
776
x509_crt_fmt_t = ctypes.c_int
777
778
# All the function declarations below are from
779
# gnutls/abstract.h
780
pubkey_init = _library.gnutls_pubkey_init
781
pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]
782
pubkey_init.restype = _error_code
783
784
pubkey_import = _library.gnutls_pubkey_import
785
pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),
786
x509_crt_fmt_t]
787
pubkey_import.restype = _error_code
788
789
pubkey_get_key_id = _library.gnutls_pubkey_get_key_id
790
pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,
791
ctypes.POINTER(ctypes.c_ubyte),
792
ctypes.POINTER(ctypes.c_size_t)]
793
pubkey_get_key_id.restype = _error_code
794
795
pubkey_deinit = _library.gnutls_pubkey_deinit
796
pubkey_deinit.argtypes = [pubkey_t]
797
pubkey_deinit.restype = None
798
else:
799
# All the function declarations below are from
800
# gnutls/openpgp.h
801
802
openpgp_crt_init = _library.gnutls_openpgp_crt_init
803
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
804
openpgp_crt_init.restype = _error_code
805
806
openpgp_crt_import = _library.gnutls_openpgp_crt_import
807
openpgp_crt_import.argtypes = [openpgp_crt_t,
808
ctypes.POINTER(datum_t),
809
openpgp_crt_fmt_t]
810
openpgp_crt_import.restype = _error_code
811
812
openpgp_crt_verify_self = \
813
_library.gnutls_openpgp_crt_verify_self
814
openpgp_crt_verify_self.argtypes = [
815
openpgp_crt_t,
816
ctypes.c_uint,
817
ctypes.POINTER(ctypes.c_uint),
818
]
819
openpgp_crt_verify_self.restype = _error_code
820
821
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
822
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
823
openpgp_crt_deinit.restype = None
824
825
openpgp_crt_get_fingerprint = (
826
_library.gnutls_openpgp_crt_get_fingerprint)
827
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
828
ctypes.c_void_p,
829
ctypes.POINTER(
830
ctypes.c_size_t)]
831
openpgp_crt_get_fingerprint.restype = _error_code
832
833
if check_version(b"3.6.4"):
834
certificate_type_get2 = _library.gnutls_certificate_type_get2
835
certificate_type_get2.argtypes = [session_t, ctypes.c_int]
836
certificate_type_get2.restype = _error_code
837
838
# Remove non-public functions
839
del _error_code, _retry_on_error
840
841
842
def call_pipe(connection, # : multiprocessing.Connection
843
func, *args, **kwargs):
844
"""This function is meant to be called by multiprocessing.Process
845
846
This function runs func(*args, **kwargs), and writes the resulting
847
return value on the provided multiprocessing.Connection.
848
"""
849
connection.send(func(*args, **kwargs))
850
connection.close()
851
852
853
class Client:
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):
854
389
"""A representation of a client host served by this server.
855
390
856
391
Attributes:
857
392
approved: bool(); 'None' if not yet approved/disapproved
858
393
approval_delay: datetime.timedelta(); Time to wait for approval
859
394
approval_duration: datetime.timedelta(); Duration of one approval
860
checker: multiprocessing.Process(); a running checker process used
861
to see if the client lives. 'None' if no process is
862
running.
863
checker_callback_tag: a GLib event source tag, or None
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
864
399
checker_command: string; External command which is run to check
865
400
if client lives. %() expansions are done at
866
401
runtime with vars(self) as dict, so that for
867
402
instance %(name)s can be used in the command.
868
checker_initiator_tag: a GLib event source tag, or None
403
checker_initiator_tag: a gobject event source tag, or None
869
404
created: datetime.datetime(); (UTC) object creation
870
405
client_structure: Object describing what attributes a client has
871
406
and is used for storing the client at exit
872
407
current_checker_command: string; current running checker_command
873
disable_initiator_tag: a GLib event source tag, or None
408
disable_initiator_tag: a gobject event source tag, or None
874
409
enabled: bool()
875
410
fingerprint: string (40 or 32 hexadecimal digits); used to
876
uniquely identify an OpenPGP client
877
key_id: string (64 hexadecimal digits); used to uniquely identify
878
a client using raw public keys
411
uniquely identify the client
879
412
host: string; available for use by the checker command
880
413
interval: datetime.timedelta(); How often to start a new checker
881
414
last_approval_request: datetime.datetime(); (UTC) or None
882
415
last_checked_ok: datetime.datetime(); (UTC) or None
883
416
last_checker_status: integer between 0 and 255 reflecting exit
884
417
status of last checker. -1 reflects crashed
885
checker, -2 means no checker completed yet.
886
last_checker_signal: The signal which killed the last checker, if
887
last_checker_status is -1
418
checker, or None.
888
419
last_enabled: datetime.datetime(); (UTC) or None
889
420
name: string; from the config file, used in log messages and
890
421
D-Bus identifiers
891
422
secret: bytestring; sent verbatim (over TLS) to client
892
423
timeout: datetime.timedelta(); How long from last_checked_ok
893
424
until this client is disabled
894
extended_timeout: extra long timeout when secret has been sent
425
extended_timeout: extra long timeout when password has been sent
895
426
runtime_expansions: Allowed attributes for runtime expansion.
896
427
expires: datetime.datetime(); time (UTC) when a client will be
897
428
disabled, or None
898
server_settings: The server_settings dict from main()
899
429
"""
900
430
901
431
runtime_expansions = ("approval_delay", "approval_duration",
902
"created", "enabled", "expires", "key_id",
903
"fingerprint", "host", "interval",
904
"last_approval_request", "last_checked_ok",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
905
434
"last_enabled", "name", "timeout")
906
client_defaults = {
907
"timeout": "PT5M",
908
"extended_timeout": "PT15M",
909
"interval": "PT2M",
910
"checker": "fping -q -- %%(host)s",
911
"host": "",
912
"approval_delay": "PT0S",
913
"approval_duration": "PT1S",
914
"approved_by_default": "True",
915
"enabled": "True",
916
}
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)
917
460
918
461
@staticmethod
919
462
def config_parser(config):
927
470
for client_name in config.sections():
928
471
section = dict(config.items(client_name))
929
472
client = settings[client_name] = {}
930
473
931
474
client["host"] = section["host"]
932
475
# Reformat values from string types to Python types
933
476
client["approved_by_default"] = config.getboolean(
934
477
client_name, "approved_by_default")
935
478
client["enabled"] = config.getboolean(client_name,
936
479
"enabled")
937
938
# Uppercase and remove spaces from key_id and fingerprint
939
# for later comparison purposes with return value from the
940
# key_id() and fingerprint() functions
941
client["key_id"] = (section.get("key_id", "").upper()
942
.replace(" ", ""))
480
943
481
client["fingerprint"] = (section["fingerprint"].upper()
944
482
.replace(" ", ""))
945
483
if "secret" in section:
946
client["secret"] = codecs.decode(section["secret"]
947
.encode("utf-8"),
948
"base64")
484
client["secret"] = section["secret"].decode("base64")
949
485
elif "secfile" in section:
950
486
with open(os.path.expanduser(os.path.expandvars
951
487
(section["secfile"])),
952
488
"rb") as secfile:
953
489
client["secret"] = secfile.read()
954
490
else:
955
raise TypeError("No secret or secfile for section {}"
956
.format(section))
491
raise TypeError("No secret or secfile for section %s"
492
% section)
957
493
client["timeout"] = string_to_delta(section["timeout"])
958
494
client["extended_timeout"] = string_to_delta(
959
495
section["extended_timeout"])
965
501
client["checker_command"] = section["checker"]
966
502
client["last_approval_request"] = None
967
503
client["last_checked_ok"] = None
968
client["last_checker_status"] = -2
969
504
client["last_checker_status"] = None
505
970
506
return settings
971
972
def __init__(self, settings, name=None, server_settings=None):
507
508
509
def __init__(self, settings, name = None):
510
"""Note: the 'checker' key in 'config' sets the
511
'checker_command' attribute and *not* the 'checker'
512
attribute."""
973
513
self.name = name
974
if server_settings is None:
975
server_settings = {}
976
self.server_settings = server_settings
977
514
# adding all client settings
978
for setting, value in settings.items():
515
for setting, value in settings.iteritems():
979
516
setattr(self, setting, value)
980
517
981
518
if self.enabled:
982
519
if not hasattr(self, "last_enabled"):
983
520
self.last_enabled = datetime.datetime.utcnow()
987
524
else:
988
525
self.last_enabled = None
989
526
self.expires = None
990
527
991
528
logger.debug("Creating client %r", self.name)
992
logger.debug(" Key ID: %s", self.key_id)
529
# Uppercase and remove spaces from fingerprint for later
530
# comparison purposes with return value from the fingerprint()
531
# function
993
532
logger.debug(" Fingerprint: %s", self.fingerprint)
994
533
self.created = settings.get("created",
995
534
datetime.datetime.utcnow())
1002
541
self.current_checker_command = None
1003
542
self.approved = None
1004
543
self.approvals_pending = 0
1005
self.changedstate = multiprocessing_manager.Condition(
1006
multiprocessing_manager.Lock())
1007
self.client_structure = [attr
1008
for attr in self.__dict__.keys()
544
self.changedstate = (multiprocessing_manager
545
.Condition(multiprocessing_manager
546
.Lock()))
547
self.client_structure = [attr for attr in
548
self.__dict__.iterkeys()
1009
549
if not attr.startswith("_")]
1010
550
self.client_structure.append("client_structure")
1011
1012
for name, t in inspect.getmembers(
1013
type(self), lambda obj: isinstance(obj, property)):
551
552
for name, t in inspect.getmembers(type(self),
553
lambda obj:
554
isinstance(obj,
555
property)):
1014
556
if not name.startswith("_"):
1015
557
self.client_structure.append(name)
1016
558
1017
559
# Send notice to process children that client state has changed
1018
560
def send_changedstate(self):
1019
561
with self.changedstate:
1020
562
self.changedstate.notify_all()
1021
563
1022
564
def enable(self):
1023
565
"""Start this client's checker and timeout hooks"""
1024
566
if getattr(self, "enabled", False):
1025
567
# Already enabled
1026
568
return
569
self.send_changedstate()
1027
570
self.expires = datetime.datetime.utcnow() + self.timeout
1028
571
self.enabled = True
1029
572
self.last_enabled = datetime.datetime.utcnow()
1030
573
self.init_checker()
1031
self.send_changedstate()
1032
574
1033
575
def disable(self, quiet=True):
1034
576
"""Disable this client."""
1035
577
if not getattr(self, "enabled", False):
1036
578
return False
1037
579
if not quiet:
580
self.send_changedstate()
581
if not quiet:
1038
582
logger.info("Disabling client %s", self.name)
1039
if getattr(self, "disable_initiator_tag", None) is not None:
1040
GLib.source_remove(self.disable_initiator_tag)
583
if getattr(self, "disable_initiator_tag", False):
584
gobject.source_remove(self.disable_initiator_tag)
1041
585
self.disable_initiator_tag = None
1042
586
self.expires = None
1043
if getattr(self, "checker_initiator_tag", None) is not None:
1044
GLib.source_remove(self.checker_initiator_tag)
587
if getattr(self, "checker_initiator_tag", False):
588
gobject.source_remove(self.checker_initiator_tag)
1045
589
self.checker_initiator_tag = None
1046
590
self.stop_checker()
1047
591
self.enabled = False
1048
if not quiet:
1049
self.send_changedstate()
1050
# Do not run this again if called by a GLib.timeout_add
592
# Do not run this again if called by a gobject.timeout_add
1051
593
return False
1052
594
1053
595
def __del__(self):
1054
596
self.disable()
1055
597
1056
598
def init_checker(self):
1057
599
# Schedule a new checker to be started an 'interval' from now,
1058
600
# and every interval from then on.
1059
if self.checker_initiator_tag is not None:
1060
GLib.source_remove(self.checker_initiator_tag)
1061
self.checker_initiator_tag = GLib.timeout_add(
1062
random.randrange(int(self.interval.total_seconds() * 1000
1063
+ 1)),
1064
self.start_checker)
601
self.checker_initiator_tag = (gobject.timeout_add
602
(self.interval_milliseconds(),
603
self.start_checker))
1065
604
# Schedule a disable() when 'timeout' has passed
1066
if self.disable_initiator_tag is not None:
1067
GLib.source_remove(self.disable_initiator_tag)
1068
self.disable_initiator_tag = GLib.timeout_add(
1069
int(self.timeout.total_seconds() * 1000), self.disable)
605
self.disable_initiator_tag = (gobject.timeout_add
606
(self.timeout_milliseconds(),
607
self.disable))
1070
608
# Also start a new checker *right now*.
1071
609
self.start_checker()
1072
1073
def checker_callback(self, source, condition, connection,
1074
command):
610
611
def checker_callback(self, pid, condition, command):
1075
612
"""The checker has completed, so take appropriate actions."""
1076
# Read return code from connection (see call_pipe)
1077
returncode = connection.recv()
1078
connection.close()
1079
if self.checker is not None:
1080
self.checker.join()
1081
613
self.checker_callback_tag = None
1082
614
self.checker = None
1083
1084
if returncode >= 0:
1085
self.last_checker_status = returncode
1086
self.last_checker_signal = None
615
if os.WIFEXITED(condition):
616
self.last_checker_status = os.WEXITSTATUS(condition)
1087
617
if self.last_checker_status == 0:
1088
618
logger.info("Checker for %(name)s succeeded",
1089
619
vars(self))
1090
620
self.checked_ok()
1091
621
else:
1092
logger.info("Checker for %(name)s failed", vars(self))
622
logger.info("Checker for %(name)s failed",
623
vars(self))
1093
624
else:
1094
625
self.last_checker_status = -1
1095
self.last_checker_signal = -returncode
1096
626
logger.warning("Checker for %(name)s crashed?",
1097
627
vars(self))
1098
return False
1099
1100
def checked_ok(self):
1101
"""Assert that the client has been seen, alive and well."""
1102
self.last_checked_ok = datetime.datetime.utcnow()
1103
self.last_checker_status = 0
1104
self.last_checker_signal = None
1105
self.bump_timeout()
1106
1107
def bump_timeout(self, timeout=None):
1108
"""Bump up the timeout for this client."""
628
629
def checked_ok(self, timeout=None):
630
"""Bump up the timeout for this client.
631
632
This should only be called when the client has been seen,
633
alive and well.
634
"""
1109
635
if timeout is None:
1110
636
timeout = self.timeout
637
self.last_checked_ok = datetime.datetime.utcnow()
1111
638
if self.disable_initiator_tag is not None:
1112
GLib.source_remove(self.disable_initiator_tag)
1113
self.disable_initiator_tag = None
639
gobject.source_remove(self.disable_initiator_tag)
1114
640
if getattr(self, "enabled", False):
1115
self.disable_initiator_tag = GLib.timeout_add(
1116
int(timeout.total_seconds() * 1000), self.disable)
641
self.disable_initiator_tag = (gobject.timeout_add
642
(timedelta_to_milliseconds
643
(timeout), self.disable))
1117
644
self.expires = datetime.datetime.utcnow() + timeout
1118
645
1119
646
def need_approval(self):
1120
647
self.last_approval_request = datetime.datetime.utcnow()
1121
648
1122
649
def start_checker(self):
1123
650
"""Start a new checker subprocess if one is not running.
1124
651
1125
652
If a checker already exists, leave it running and do
1126
653
nothing."""
1127
654
# The reason for not killing a running checker is that if we
1128
# did that, and if a checker (for some reason) started running
1129
# slowly and taking more than 'interval' time, then the client
1130
# would inevitably timeout, since no checker would get a
1131
# chance to run to completion. If we instead leave running
655
# did that, then if a checker (for some reason) started
656
# running slowly and taking more than 'interval' time, the
657
# client would inevitably timeout, since no checker would get
658
# a chance to run to completion. If we instead leave running
1132
659
# checkers alone, the checker would have to take more time
1133
660
# than 'timeout' for the client to be disabled, which is as it
1134
661
# should be.
1135
1136
if self.checker is not None and not self.checker.is_alive():
1137
logger.warning("Checker was not alive; joining")
1138
self.checker.join()
1139
self.checker = None
662
663
# If a checker exists, make sure it is not a zombie
664
try:
665
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
666
except (AttributeError, OSError) as error:
667
if (isinstance(error, OSError)
668
and error.errno != errno.ECHILD):
669
raise error
670
else:
671
if pid:
672
logger.warning("Checker was a zombie")
673
gobject.source_remove(self.checker_callback_tag)
674
self.checker_callback(pid, status,
675
self.current_checker_command)
1140
676
# Start a new checker if needed
1141
677
if self.checker is None:
1142
# Escape attributes for the shell
1143
escaped_attrs = {
1144
attr: shlex.quote(str(getattr(self, attr)))
1145
for attr in self.runtime_expansions}
1146
678
try:
1147
command = self.checker_command % escaped_attrs
1148
except TypeError as error:
1149
logger.error('Could not format string "%s"',
1150
self.checker_command,
1151
exc_info=error)
1152
return True # Try again later
679
# In case checker_command has exactly one % operator
680
command = self.checker_command % self.host
681
except TypeError:
682
# Escape attributes for the shell
683
escaped_attrs = dict(
684
(attr,
685
re.escape(unicode(str(getattr(self, attr, "")),
686
errors=
687
'replace')))
688
for attr in
689
self.runtime_expansions)
690
691
try:
692
command = self.checker_command % escaped_attrs
693
except TypeError as error:
694
logger.error('Could not format string "%s":'
695
' %s', self.checker_command, error)
696
return True # Try again later
1153
697
self.current_checker_command = command
1154
logger.info("Starting checker %r for %s", command,
1155
self.name)
1156
# We don't need to redirect stdout and stderr, since
1157
# in normal mode, that is already done by daemon(),
1158
# and in debug mode we don't want to. (Stdin is
1159
# always replaced by /dev/null.)
1160
# The exception is when not debugging but nevertheless
1161
# running in the foreground; use the previously
1162
# created wnull.
1163
popen_args = {"close_fds": True,
1164
"shell": True,
1165
"cwd": "/"}
1166
if (not self.server_settings["debug"]
1167
and self.server_settings["foreground"]):
1168
popen_args.update({"stdout": wnull,
1169
"stderr": wnull})
1170
pipe = multiprocessing.Pipe(duplex=False)
1171
self.checker = multiprocessing.Process(
1172
target=call_pipe,
1173
args=(pipe[1], subprocess.call, command),
1174
kwargs=popen_args)
1175
self.checker.start()
1176
self.checker_callback_tag = GLib.io_add_watch(
1177
GLib.IOChannel.unix_new(pipe[0].fileno()),
1178
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
1179
self.checker_callback, pipe[0], command)
1180
# Re-run this periodically if run by GLib.timeout_add
698
try:
699
logger.info("Starting checker %r for %s",
700
command, self.name)
701
# We don't need to redirect stdout and stderr, since
702
# in normal mode, that is already done by daemon(),
703
# and in debug mode we don't want to. (Stdin is
704
# always replaced by /dev/null.)
705
self.checker = subprocess.Popen(command,
706
close_fds=True,
707
shell=True, cwd="/")
708
self.checker_callback_tag = (gobject.child_watch_add
709
(self.checker.pid,
710
self.checker_callback,
711
data=command))
712
# The checker may have completed before the gobject
713
# watch was added. Check for this.
714
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
715
if pid:
716
gobject.source_remove(self.checker_callback_tag)
717
self.checker_callback(pid, status, command)
718
except OSError as error:
719
logger.error("Failed to start subprocess: %s",
720
error)
721
# Re-run this periodically if run by gobject.timeout_add
1181
722
return True
1182
723
1183
724
def stop_checker(self):
1184
725
"""Force the checker process, if any, to stop."""
1185
726
if self.checker_callback_tag:
1186
GLib.source_remove(self.checker_callback_tag)
727
gobject.source_remove(self.checker_callback_tag)
1187
728
self.checker_callback_tag = None
1188
729
if getattr(self, "checker", None) is None:
1189
730
return
1190
731
logger.debug("Stopping checker for %(name)s", vars(self))
1191
self.checker.terminate()
732
try:
733
os.kill(self.checker.pid, signal.SIGTERM)
734
#time.sleep(0.5)
735
#if self.checker.poll() is None:
736
# os.kill(self.checker.pid, signal.SIGKILL)
737
except OSError as error:
738
if error.errno != errno.ESRCH: # No such process
739
raise
1192
740
self.checker = None
1193
741
1194
742
1195
def dbus_service_property(dbus_interface,
1196
signature="v",
1197
access="readwrite",
1198
byte_arrays=False):
743
def dbus_service_property(dbus_interface, signature="v",
744
access="readwrite", byte_arrays=False):
1199
745
"""Decorators for marking methods of a DBusObjectWithProperties to
1200
746
become properties on the D-Bus.
1201
747
1202
748
The decorated method will be called with no arguments by "Get"
1203
749
and with one argument by "Set".
1204
750
1205
751
The parameters, where they are supported, are the same as
1206
752
dbus.service.method, except there is only "signature", since the
1207
753
type from Get() and the type sent to Set() is the same.
1210
756
# "Set" method, so we fail early here:
1211
757
if byte_arrays and signature != "ay":
1212
758
raise ValueError("Byte arrays not supported for non-'ay'"
1213
" signature {!r}".format(signature))
1214
759
" signature %r" % signature)
1215
760
def decorator(func):
1216
761
func._dbus_is_property = True
1217
762
func._dbus_interface = dbus_interface
1220
765
func._dbus_name = func.__name__
1221
766
if func._dbus_name.endswith("_dbus_property"):
1222
767
func._dbus_name = func._dbus_name[:-14]
1223
func._dbus_get_args_options = {'byte_arrays': byte_arrays}
1224
return func
1225
1226
return decorator
1227
1228
1229
def dbus_interface_annotations(dbus_interface):
1230
"""Decorator for marking functions returning interface annotations
1231
1232
Usage:
1233
1234
@dbus_interface_annotations("org.example.Interface")
1235
def _foo(self): # Function name does not matter
1236
return {"org.freedesktop.DBus.Deprecated": "true",
1237
"org.freedesktop.DBus.Property.EmitsChangedSignal":
1238
"false"}
1239
"""
1240
1241
def decorator(func):
1242
func._dbus_is_interface = True
1243
func._dbus_interface = dbus_interface
1244
func._dbus_name = dbus_interface
1245
return func
1246
1247
return decorator
1248
1249
1250
def dbus_annotations(annotations):
1251
"""Decorator to annotate D-Bus methods, signals or properties
1252
Usage:
1253
1254
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1255
"org.freedesktop.DBus.Property."
1256
"EmitsChangedSignal": "false"})
1257
@dbus_service_property("org.example.Interface", signature="b",
1258
access="r")
1259
def Property_dbus_property(self):
1260
return dbus.Boolean(False)
1261
1262
See also the DBusObjectWithAnnotations class.
1263
"""
1264
1265
def decorator(func):
1266
func._dbus_annotations = annotations
1267
return func
1268
768
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
769
return func
1269
770
return decorator
1270
771
1271
772
1272
773
class DBusPropertyException(dbus.exceptions.DBusException):
1273
774
"""A base class for D-Bus property-related exceptions
1274
775
"""
1275
pass
776
def __unicode__(self):
777
return unicode(str(self))
1276
778
1277
779
1278
780
class DBusPropertyAccessException(DBusPropertyException):
1287
789
pass
1288
790
1289
791
1290
class DBusObjectWithAnnotations(dbus.service.Object):
1291
"""A D-Bus object with annotations.
1292
1293
Classes inheriting from this can use the dbus_annotations
1294
decorator to add annotations to methods or signals.
1295
"""
1296
1297
@staticmethod
1298
def _is_dbus_thing(thing):
1299
"""Returns a function testing if an attribute is a D-Bus thing
1300
1301
If called like _is_dbus_thing("method") it returns a function
1302
suitable for use as predicate to inspect.getmembers().
1303
"""
1304
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1305
False)
1306
1307
def _get_all_dbus_things(self, thing):
1308
"""Returns a generator of (name, attribute) pairs
1309
"""
1310
return ((getattr(athing.__get__(self), "_dbus_name", name),
1311
athing.__get__(self))
1312
for cls in self.__class__.__mro__
1313
for name, athing in
1314
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1315
1316
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1317
out_signature="s",
1318
path_keyword='object_path',
1319
connection_keyword='connection')
1320
def Introspect(self, object_path, connection):
1321
"""Overloading of standard D-Bus method.
1322
1323
Inserts annotation tags on methods and signals.
1324
"""
1325
xmlstring = dbus.service.Object.Introspect(self, object_path,
1326
connection)
1327
try:
1328
document = xml.dom.minidom.parseString(xmlstring)
1329
1330
for if_tag in document.getElementsByTagName("interface"):
1331
# Add annotation tags
1332
for typ in ("method", "signal"):
1333
for tag in if_tag.getElementsByTagName(typ):
1334
annots = dict()
1335
for name, prop in (self.
1336
_get_all_dbus_things(typ)):
1337
if (name == tag.getAttribute("name")
1338
and prop._dbus_interface
1339
== if_tag.getAttribute("name")):
1340
annots.update(getattr(
1341
prop, "_dbus_annotations", {}))
1342
for name, value in annots.items():
1343
ann_tag = document.createElement(
1344
"annotation")
1345
ann_tag.setAttribute("name", name)
1346
ann_tag.setAttribute("value", value)
1347
tag.appendChild(ann_tag)
1348
# Add interface annotation tags
1349
for annotation, value in dict(
1350
itertools.chain.from_iterable(
1351
annotations().items()
1352
for name, annotations
1353
in self._get_all_dbus_things("interface")
1354
if name == if_tag.getAttribute("name")
1355
)).items():
1356
ann_tag = document.createElement("annotation")
1357
ann_tag.setAttribute("name", annotation)
1358
ann_tag.setAttribute("value", value)
1359
if_tag.appendChild(ann_tag)
1360
# Fix argument name for the Introspect method itself
1361
if (if_tag.getAttribute("name")
1362
== dbus.INTROSPECTABLE_IFACE):
1363
for cn in if_tag.getElementsByTagName("method"):
1364
if cn.getAttribute("name") == "Introspect":
1365
for arg in cn.getElementsByTagName("arg"):
1366
if (arg.getAttribute("direction")
1367
== "out"):
1368
arg.setAttribute("name",
1369
"xml_data")
1370
xmlstring = document.toxml("utf-8")
1371
document.unlink()
1372
except (AttributeError, xml.dom.DOMException,
1373
xml.parsers.expat.ExpatError) as error:
1374
logger.error("Failed to override Introspection method",
1375
exc_info=error)
1376
return xmlstring
1377
1378
1379
class DBusObjectWithProperties(DBusObjectWithAnnotations):
792
class DBusObjectWithProperties(dbus.service.Object):
1380
793
"""A D-Bus object with properties.
1381
794
1382
795
Classes inheriting from this can use the dbus_service_property
1383
796
decorator to expose methods as D-Bus properties. It exposes the
1384
797
standard Get(), Set(), and GetAll() methods on the D-Bus.
1385
798
"""
1386
799
800
@staticmethod
801
def _is_dbus_property(obj):
802
return getattr(obj, "_dbus_is_property", False)
803
804
def _get_all_dbus_properties(self):
805
"""Returns a generator of (name, attribute) pairs
806
"""
807
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
808
for cls in self.__class__.__mro__
809
for name, prop in
810
inspect.getmembers(cls, self._is_dbus_property))
811
1387
812
def _get_dbus_property(self, interface_name, property_name):
1388
813
"""Returns a bound method if one exists which is a D-Bus
1389
814
property with the specified name and interface.
1390
815
"""
1391
for cls in self.__class__.__mro__:
1392
for name, value in inspect.getmembers(
1393
cls, self._is_dbus_thing("property")):
816
for cls in self.__class__.__mro__:
817
for name, value in (inspect.getmembers
818
(cls, self._is_dbus_property)):
1394
819
if (value._dbus_name == property_name
1395
820
and value._dbus_interface == interface_name):
1396
821
return value.__get__(self)
1397
822
1398
823
# No such property
1399
raise DBusPropertyNotFound("{}:{}.{}".format(
1400
self.dbus_object_path, interface_name, property_name))
1401
1402
@classmethod
1403
def _get_all_interface_names(cls):
1404
"""Get a sequence of all interfaces supported by an object"""
1405
return (name for name in set(getattr(getattr(x, attr),
1406
"_dbus_interface", None)
1407
for x in (inspect.getmro(cls))
1408
for attr in dir(x))
1409
if name is not None)
1410
1411
@dbus.service.method(dbus.PROPERTIES_IFACE,
1412
in_signature="ss",
824
raise DBusPropertyNotFound(self.dbus_object_path + ":"
825
+ interface_name + "."
826
+ property_name)
827
828
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1413
829
out_signature="v")
1414
830
def Get(self, interface_name, property_name):
1415
831
"""Standard D-Bus property Get() method, see D-Bus standard.
1421
837
if not hasattr(value, "variant_level"):
1422
838
return value
1423
839
return type(value)(value, variant_level=value.variant_level+1)
1424
840
1425
841
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
1426
842
def Set(self, interface_name, property_name, value):
1427
843
"""Standard D-Bus property Set() method, see D-Bus standard.
1433
849
# The byte_arrays option is not supported yet on
1434
850
# signatures other than "ay".
1435
851
if prop._dbus_signature != "ay":
1436
raise ValueError("Byte arrays not supported for non-"
1437
"'ay' signature {!r}"
1438
.format(prop._dbus_signature))
1439
value = dbus.ByteArray(bytes(value))
852
raise ValueError
853
value = dbus.ByteArray(''.join(unichr(byte)
854
for byte in value))
1440
855
prop(value)
1441
1442
@dbus.service.method(dbus.PROPERTIES_IFACE,
1443
in_signature="s",
856
857
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1444
858
out_signature="a{sv}")
1445
859
def GetAll(self, interface_name):
1446
860
"""Standard D-Bus property GetAll() method, see D-Bus
1447
861
standard.
1448
862
1449
863
Note: Will not include properties with access="write".
1450
864
"""
1451
865
properties = {}
1452
for name, prop in self._get_all_dbus_things("property"):
866
for name, prop in self._get_all_dbus_properties():
1453
867
if (interface_name
1454
868
and interface_name != prop._dbus_interface):
1455
869
# Interface non-empty but did not match
1461
875
if not hasattr(value, "variant_level"):
1462
876
properties[name] = value
1463
877
continue
1464
properties[name] = type(value)(
1465
value, variant_level=value.variant_level + 1)
878
properties[name] = type(value)(value, variant_level=
879
value.variant_level+1)
1466
880
return dbus.Dictionary(properties, signature="sv")
1467
1468
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1469
def PropertiesChanged(self, interface_name, changed_properties,
1470
invalidated_properties):
1471
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1472
standard.
1473
"""
1474
pass
1475
881
1476
882
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1477
883
out_signature="s",
1478
884
path_keyword='object_path',
1479
885
connection_keyword='connection')
1480
886
def Introspect(self, object_path, connection):
1481
"""Overloading of standard D-Bus method.
1482
1483
Inserts property tags and interface annotation tags.
887
"""Standard D-Bus method, overloaded to insert property tags.
1484
888
"""
1485
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1486
object_path,
1487
connection)
889
xmlstring = dbus.service.Object.Introspect(self, object_path,
890
connection)
1488
891
try:
1489
892
document = xml.dom.minidom.parseString(xmlstring)
1490
1491
893
def make_tag(document, name, prop):
1492
894
e = document.createElement("property")
1493
895
e.setAttribute("name", name)
1494
896
e.setAttribute("type", prop._dbus_signature)
1495
897
e.setAttribute("access", prop._dbus_access)
1496
898
return e
1497
1498
899
for if_tag in document.getElementsByTagName("interface"):
1499
# Add property tags
1500
900
for tag in (make_tag(document, name, prop)
1501
901
for name, prop
1502
in self._get_all_dbus_things("property")
902
in self._get_all_dbus_properties()
1503
903
if prop._dbus_interface
1504
904
== if_tag.getAttribute("name")):
1505
905
if_tag.appendChild(tag)
1506
# Add annotation tags for properties
1507
for tag in if_tag.getElementsByTagName("property"):
1508
annots = dict()
1509
for name, prop in self._get_all_dbus_things(
1510
"property"):
1511
if (name == tag.getAttribute("name")
1512
and prop._dbus_interface
1513
== if_tag.getAttribute("name")):
1514
annots.update(getattr(
1515
prop, "_dbus_annotations", {}))
1516
for name, value in annots.items():
1517
ann_tag = document.createElement(
1518
"annotation")
1519
ann_tag.setAttribute("name", name)
1520
ann_tag.setAttribute("value", value)
1521
tag.appendChild(ann_tag)
1522
906
# Add the names to the return values for the
1523
907
# "org.freedesktop.DBus.Properties" methods
1524
908
if (if_tag.getAttribute("name")
1539
923
except (AttributeError, xml.dom.DOMException,
1540
924
xml.parsers.expat.ExpatError) as error:
1541
925
logger.error("Failed to override Introspection method",
1542
exc_info=error)
1543
return xmlstring
1544
1545
1546
try:
1547
dbus.OBJECT_MANAGER_IFACE
1548
except AttributeError:
1549
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1550
1551
1552
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1553
"""A D-Bus object with an ObjectManager.
1554
1555
Classes inheriting from this exposes the standard
1556
GetManagedObjects call and the InterfacesAdded and
1557
InterfacesRemoved signals on the standard
1558
"org.freedesktop.DBus.ObjectManager" interface.
1559
1560
Note: No signals are sent automatically; they must be sent
1561
manually.
1562
"""
1563
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1564
out_signature="a{oa{sa{sv}}}")
1565
def GetManagedObjects(self):
1566
"""This function must be overridden"""
1567
raise NotImplementedError()
1568
1569
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1570
signature="oa{sa{sv}}")
1571
def InterfacesAdded(self, object_path, interfaces_and_properties):
1572
pass
1573
1574
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1575
def InterfacesRemoved(self, object_path, interfaces):
1576
pass
1577
1578
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1579
out_signature="s",
1580
path_keyword='object_path',
1581
connection_keyword='connection')
1582
def Introspect(self, object_path, connection):
1583
"""Overloading of standard D-Bus method.
1584
1585
Override return argument name of GetManagedObjects to be
1586
"objpath_interfaces_and_properties"
1587
"""
1588
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1589
object_path,
1590
connection)
1591
try:
1592
document = xml.dom.minidom.parseString(xmlstring)
1593
1594
for if_tag in document.getElementsByTagName("interface"):
1595
# Fix argument name for the GetManagedObjects method
1596
if (if_tag.getAttribute("name")
1597
== dbus.OBJECT_MANAGER_IFACE):
1598
for cn in if_tag.getElementsByTagName("method"):
1599
if (cn.getAttribute("name")
1600
== "GetManagedObjects"):
1601
for arg in cn.getElementsByTagName("arg"):
1602
if (arg.getAttribute("direction")
1603
== "out"):
1604
arg.setAttribute(
1605
"name",
1606
"objpath_interfaces"
1607
"_and_properties")
1608
xmlstring = document.toxml("utf-8")
1609
document.unlink()
1610
except (AttributeError, xml.dom.DOMException,
1611
xml.parsers.expat.ExpatError) as error:
1612
logger.error("Failed to override Introspection method",
1613
exc_info=error)
1614
return xmlstring
1615
1616
1617
def datetime_to_dbus(dt, variant_level=0):
926
error)
927
return xmlstring
928
929
930
def datetime_to_dbus (dt, variant_level=0):
1618
931
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1619
932
if dt is None:
1620
return dbus.String("", variant_level=variant_level)
1621
return dbus.String(dt.isoformat(), variant_level=variant_level)
1622
1623
1624
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1625
"""A class decorator; applied to a subclass of
1626
dbus.service.Object, it will add alternate D-Bus attributes with
1627
interface names according to the "alt_interface_names" mapping.
1628
Usage:
1629
1630
@alternate_dbus_interfaces({"org.example.Interface":
1631
"net.example.AlternateInterface"})
1632
class SampleDBusObject(dbus.service.Object):
1633
@dbus.service.method("org.example.Interface")
1634
def SampleDBusMethod():
1635
pass
1636
1637
The above "SampleDBusMethod" on "SampleDBusObject" will be
1638
reachable via two interfaces: "org.example.Interface" and
1639
"net.example.AlternateInterface", the latter of which will have
1640
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1641
"true", unless "deprecate" is passed with a False value.
1642
1643
This works for methods and signals, and also for D-Bus properties
1644
(from DBusObjectWithProperties) and interfaces (from the
1645
dbus_interface_annotations decorator).
933
return dbus.String("", variant_level = variant_level)
934
return dbus.String(dt.isoformat(),
935
variant_level=variant_level)
936
937
938
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
939
.__metaclass__):
940
"""Applied to an empty subclass of a D-Bus object, this metaclass
941
will add additional D-Bus attributes matching a certain pattern.
1646
942
"""
1647
1648
def wrapper(cls):
1649
for orig_interface_name, alt_interface_name in (
1650
alt_interface_names.items()):
1651
attr = {}
1652
interface_names = set()
1653
# Go though all attributes of the class
1654
for attrname, attribute in inspect.getmembers(cls):
943
def __new__(mcs, name, bases, attr):
944
# Go through all the base classes which could have D-Bus
945
# methods, signals, or properties in them
946
for base in (b for b in bases
947
if issubclass(b, dbus.service.Object)):
948
# Go though all attributes of the base class
949
for attrname, attribute in inspect.getmembers(base):
1655
950
# Ignore non-D-Bus attributes, and D-Bus attributes
1656
951
# with the wrong interface name
1657
952
if (not hasattr(attribute, "_dbus_interface")
1658
or not attribute._dbus_interface.startswith(
1659
orig_interface_name)):
953
or not attribute._dbus_interface
954
.startswith("se.recompile.Mandos")):
1660
955
continue
1661
956
# Create an alternate D-Bus interface name based on
1662
957
# the current name
1663
alt_interface = attribute._dbus_interface.replace(
1664
orig_interface_name, alt_interface_name)
1665
interface_names.add(alt_interface)
958
alt_interface = (attribute._dbus_interface
959
.replace("se.recompile.Mandos",
960
"se.bsnet.fukt.Mandos"))
1666
961
# Is this a D-Bus signal?
1667
962
if getattr(attribute, "_dbus_is_signal", False):
1668
# Extract the original non-method undecorated
1669
# function by black magic
1670
if sys.version_info.major == 2:
1671
nonmethod_func = (dict(
963
# Extract the original non-method function by
964
# black magic
965
nonmethod_func = (dict(
1672
966
zip(attribute.func_code.co_freevars,
1673
attribute.__closure__))
1674
["func"].cell_contents)
1675
else:
1676
nonmethod_func = (dict(
1677
zip(attribute.__code__.co_freevars,
1678
attribute.__closure__))
1679
["func"].cell_contents)
967
attribute.__closure__))["func"]
968
.cell_contents)
1680
969
# Create a new, but exactly alike, function
1681
970
# object, and decorate it to be a new D-Bus signal
1682
971
# with the alternate D-Bus interface name
1683
new_function = copy_function(nonmethod_func)
1684
new_function = (dbus.service.signal(
1685
alt_interface,
1686
attribute._dbus_signature)(new_function))
1687
# Copy annotations, if any
1688
try:
1689
new_function._dbus_annotations = dict(
1690
attribute._dbus_annotations)
1691
except AttributeError:
1692
pass
1693
972
new_function = (dbus.service.signal
973
(alt_interface,
974
attribute._dbus_signature)
975
(types.FunctionType(
976
nonmethod_func.func_code,
977
nonmethod_func.func_globals,
978
nonmethod_func.func_name,
979
nonmethod_func.func_defaults,
980
nonmethod_func.func_closure)))
1694
981
# Define a creator of a function to call both the
1695
# original and alternate functions, so both the
1696
# original and alternate signals gets sent when
1697
# the function is called
982
# old and new functions, so both the old and new
983
# signals gets sent when the function is called
1698
984
def fixscope(func1, func2):
1699
985
"""This function is a scope container to pass
1700
986
func1 and func2 to the "call_both" function
1701
987
outside of its arguments"""
1702
1703
@functools.wraps(func2)
1704
988
def call_both(*args, **kwargs):
1705
989
"""This function will emit two D-Bus
1706
990
signals by calling func1 and func2"""
1707
991
func1(*args, **kwargs)
1708
992
func2(*args, **kwargs)
1709
# Make wrapper function look like a D-Bus
1710
# signal
1711
for name, attr in inspect.getmembers(func2):
1712
if name.startswith("_dbus_"):
1713
setattr(call_both, name, attr)
1714
1715
993
return call_both
1716
994
# Create the "call_both" function and add it to
1717
995
# the class
1718
attr[attrname] = fixscope(attribute, new_function)
996
attr[attrname] = fixscope(attribute,
997
new_function)
1719
998
# Is this a D-Bus method?
1720
999
elif getattr(attribute, "_dbus_is_method", False):
1721
1000
# Create a new, but exactly alike, function
1722
1001
# object. Decorate it to be a new D-Bus method
1723
1002
# with the alternate D-Bus interface name. Add it
1724
1003
# to the class.
1725
attr[attrname] = (
1726
dbus.service.method(
1727
alt_interface,
1728
attribute._dbus_in_signature,
1729
attribute._dbus_out_signature)
1730
(copy_function(attribute)))
1731
# Copy annotations, if any
1732
try:
1733
attr[attrname]._dbus_annotations = dict(
1734
attribute._dbus_annotations)
1735
except AttributeError:
1736
pass
1004
attr[attrname] = (dbus.service.method
1005
(alt_interface,
1006
attribute._dbus_in_signature,
1007
attribute._dbus_out_signature)
1008
(types.FunctionType
1009
(attribute.func_code,
1010
attribute.func_globals,
1011
attribute.func_name,
1012
attribute.func_defaults,
1013
attribute.func_closure)))
1737
1014
# Is this a D-Bus property?
1738
1015
elif getattr(attribute, "_dbus_is_property", False):
1739
1016
# Create a new, but exactly alike, function
1740
1017
# object, and decorate it to be a new D-Bus
1741
1018
# property with the alternate D-Bus interface
1742
1019
# name. Add it to the class.
1743
attr[attrname] = (dbus_service_property(
1744
alt_interface, attribute._dbus_signature,
1745
attribute._dbus_access,
1746
attribute._dbus_get_args_options
1747
["byte_arrays"])
1748
(copy_function(attribute)))
1749
# Copy annotations, if any
1750
try:
1751
attr[attrname]._dbus_annotations = dict(
1752
attribute._dbus_annotations)
1753
except AttributeError:
1754
pass
1755
# Is this a D-Bus interface?
1756
elif getattr(attribute, "_dbus_is_interface", False):
1757
# Create a new, but exactly alike, function
1758
# object. Decorate it to be a new D-Bus interface
1759
# with the alternate D-Bus interface name. Add it
1760
# to the class.
1761
attr[attrname] = (
1762
dbus_interface_annotations(alt_interface)
1763
(copy_function(attribute)))
1764
if deprecate:
1765
# Deprecate all alternate interfaces
1766
iname = "_AlternateDBusNames_interface_annotation{}"
1767
for interface_name in interface_names:
1768
1769
@dbus_interface_annotations(interface_name)
1770
def func(self):
1771
return {"org.freedesktop.DBus.Deprecated":
1772
"true"}
1773
# Find an unused name
1774
for aname in (iname.format(i)
1775
for i in itertools.count()):
1776
if aname not in attr:
1777
attr[aname] = func
1778
break
1779
if interface_names:
1780
# Replace the class with a new subclass of it with
1781
# methods, signals, etc. as created above.
1782
if sys.version_info.major == 2:
1783
cls = type(b"{}Alternate".format(cls.__name__),
1784
(cls, ), attr)
1785
else:
1786
cls = type("{}Alternate".format(cls.__name__),
1787
(cls, ), attr)
1788
return cls
1789
1790
return wrapper
1791
1792
1793
@alternate_dbus_interfaces({"se.recompile.Mandos":
1794
"se.bsnet.fukt.Mandos"})
1020
attr[attrname] = (dbus_service_property
1021
(alt_interface,
1022
attribute._dbus_signature,
1023
attribute._dbus_access,
1024
attribute
1025
._dbus_get_args_options
1026
["byte_arrays"])
1027
(types.FunctionType
1028
(attribute.func_code,
1029
attribute.func_globals,
1030
attribute.func_name,
1031
attribute.func_defaults,
1032
attribute.func_closure)))
1033
return type.__new__(mcs, name, bases, attr)
1034
1035
1795
1036
class ClientDBus(Client, DBusObjectWithProperties):
1796
1037
"""A Client class using D-Bus
1797
1038
1798
1039
Attributes:
1799
1040
dbus_object_path: dbus.ObjectPath
1800
1041
bus: dbus.SystemBus()
1801
1042
"""
1802
1043
1803
1044
runtime_expansions = (Client.runtime_expansions
1804
+ ("dbus_object_path", ))
1805
1806
_interface = "se.recompile.Mandos.Client"
1807
1045
+ ("dbus_object_path",))
1046
1808
1047
# dbus.service.Object doesn't use super(), so we can't either.
1809
1810
def __init__(self, bus=None, *args, **kwargs):
1048
1049
def __init__(self, bus = None, *args, **kwargs):
1811
1050
self.bus = bus
1812
1051
Client.__init__(self, *args, **kwargs)
1052
self._approvals_pending = 0
1053
1054
self._approvals_pending = 0
1813
1055
# Only now, when this client is initialized, can it show up on
1814
1056
# the D-Bus
1815
client_object_name = str(self.name).translate(
1057
client_object_name = unicode(self.name).translate(
1816
1058
{ord("."): ord("_"),
1817
1059
ord("-"): ord("_")})
1818
self.dbus_object_path = dbus.ObjectPath(
1819
"/clients/" + client_object_name)
1060
self.dbus_object_path = (dbus.ObjectPath
1061
("/clients/" + client_object_name))
1820
1062
DBusObjectWithProperties.__init__(self, self.bus,
1821
1063
self.dbus_object_path)
1822
1823
def notifychangeproperty(transform_func, dbus_name,
1824
type_func=lambda x: x,
1825
variant_level=1,
1826
invalidate_only=False,
1827
_interface=_interface):
1064
1065
def notifychangeproperty(transform_func,
1066
dbus_name, type_func=lambda x: x,
1067
variant_level=1):
1828
1068
""" Modify a variable so that it's a property which announces
1829
1069
its changes to DBus.
1830
1070
1831
1071
transform_fun: Function that takes a value and a variant_level
1832
1072
and transforms it to a D-Bus type.
1833
1073
dbus_name: D-Bus name of the variable
1835
1075
to the D-Bus. Default: no transform
1836
1076
variant_level: D-Bus variant level. Default: 1
1837
1077
"""
1838
attrname = "_{}".format(dbus_name)
1839
1078
attrname = "_{0}".format(dbus_name)
1840
1079
def setter(self, value):
1841
1080
if hasattr(self, "dbus_object_path"):
1842
1081
if (not hasattr(self, attrname) or
1843
1082
type_func(getattr(self, attrname, None))
1844
1083
!= type_func(value)):
1845
if invalidate_only:
1846
self.PropertiesChanged(
1847
_interface, dbus.Dictionary(),
1848
dbus.Array((dbus_name, )))
1849
else:
1850
dbus_value = transform_func(
1851
type_func(value),
1852
variant_level=variant_level)
1853
self.PropertyChanged(dbus.String(dbus_name),
1854
dbus_value)
1855
self.PropertiesChanged(
1856
_interface,
1857
dbus.Dictionary({dbus.String(dbus_name):
1858
dbus_value}),
1859
dbus.Array())
1084
dbus_value = transform_func(type_func(value),
1085
variant_level
1086
=variant_level)
1087
self.PropertyChanged(dbus.String(dbus_name),
1088
dbus_value)
1860
1089
setattr(self, attrname, value)
1861
1090
1862
1091
return property(lambda self: getattr(self, attrname), setter)
1863
1092
1093
1864
1094
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1865
1095
approvals_pending = notifychangeproperty(dbus.Boolean,
1866
1096
"ApprovalPending",
1867
type_func=bool)
1097
type_func = bool)
1868
1098
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1869
1099
last_enabled = notifychangeproperty(datetime_to_dbus,
1870
1100
"LastEnabled")
1871
checker = notifychangeproperty(
1872
dbus.Boolean, "CheckerRunning",
1873
type_func=lambda checker: checker is not None)
1101
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1102
type_func = lambda checker:
1103
checker is not None)
1874
1104
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1875
1105
"LastCheckedOK")
1876
last_checker_status = notifychangeproperty(dbus.Int16,
1877
"LastCheckerStatus")
1878
1106
last_approval_request = notifychangeproperty(
1879
1107
datetime_to_dbus, "LastApprovalRequest")
1880
1108
approved_by_default = notifychangeproperty(dbus.Boolean,
1881
1109
"ApprovedByDefault")
1882
approval_delay = notifychangeproperty(
1883
dbus.UInt64, "ApprovalDelay",
1884
type_func=lambda td: td.total_seconds() * 1000)
1110
approval_delay = notifychangeproperty(dbus.UInt64,
1111
"ApprovalDelay",
1112
type_func =
1113
timedelta_to_milliseconds)
1885
1114
approval_duration = notifychangeproperty(
1886
1115
dbus.UInt64, "ApprovalDuration",
1887
type_func=lambda td: td.total_seconds() * 1000)
1116
type_func = timedelta_to_milliseconds)
1888
1117
host = notifychangeproperty(dbus.String, "Host")
1889
timeout = notifychangeproperty(
1890
dbus.UInt64, "Timeout",
1891
type_func=lambda td: td.total_seconds() * 1000)
1118
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
type_func =
1120
timedelta_to_milliseconds)
1892
1121
extended_timeout = notifychangeproperty(
1893
1122
dbus.UInt64, "ExtendedTimeout",
1894
type_func=lambda td: td.total_seconds() * 1000)
1895
interval = notifychangeproperty(
1896
dbus.UInt64, "Interval",
1897
type_func=lambda td: td.total_seconds() * 1000)
1123
type_func = timedelta_to_milliseconds)
1124
interval = notifychangeproperty(dbus.UInt64,
1125
"Interval",
1126
type_func =
1127
timedelta_to_milliseconds)
1898
1128
checker_command = notifychangeproperty(dbus.String, "Checker")
1899
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1900
invalidate_only=True)
1901
1129
1902
1130
del notifychangeproperty
1903
1131
1904
1132
def __del__(self, *args, **kwargs):
1905
1133
try:
1906
1134
self.remove_from_connection()
1909
1137
if hasattr(DBusObjectWithProperties, "__del__"):
1910
1138
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1911
1139
Client.__del__(self, *args, **kwargs)
1912
1913
def checker_callback(self, source, condition,
1914
connection, command, *args, **kwargs):
1915
ret = Client.checker_callback(self, source, condition,
1916
connection, command, *args,
1917
**kwargs)
1918
exitstatus = self.last_checker_status
1919
if exitstatus >= 0:
1140
1141
def checker_callback(self, pid, condition, command,
1142
*args, **kwargs):
1143
self.checker_callback_tag = None
1144
self.checker = None
1145
if os.WIFEXITED(condition):
1146
exitstatus = os.WEXITSTATUS(condition)
1920
1147
# Emit D-Bus signal
1921
1148
self.CheckerCompleted(dbus.Int16(exitstatus),
1922
# This is specific to GNU libC
1923
dbus.Int64(exitstatus << 8),
1149
dbus.Int64(condition),
1924
1150
dbus.String(command))
1925
1151
else:
1926
1152
# Emit D-Bus signal
1927
1153
self.CheckerCompleted(dbus.Int16(-1),
1928
dbus.Int64(
1929
# This is specific to GNU libC
1930
(exitstatus << 8)
1931
| self.last_checker_signal),
1154
dbus.Int64(condition),
1932
1155
dbus.String(command))
1933
return ret
1934
1156
1157
return Client.checker_callback(self, pid, condition, command,
1158
*args, **kwargs)
1159
1935
1160
def start_checker(self, *args, **kwargs):
1936
old_checker_pid = getattr(self.checker, "pid", None)
1161
old_checker = self.checker
1162
if self.checker is not None:
1163
old_checker_pid = self.checker.pid
1164
else:
1165
old_checker_pid = None
1937
1166
r = Client.start_checker(self, *args, **kwargs)
1938
1167
# Only if new checker process was started
1939
1168
if (self.checker is not None
1941
1170
# Emit D-Bus signal
1942
1171
self.CheckerStarted(self.current_checker_command)
1943
1172
return r
1944
1173
1945
1174
def _reset_approved(self):
1946
1175
self.approved = None
1947
1176
return False
1948
1177
1949
1178
def approve(self, value=True):
1179
self.send_changedstate()
1950
1180
self.approved = value
1951
GLib.timeout_add(int(self.approval_duration.total_seconds()
1952
* 1000), self._reset_approved)
1953
self.send_changedstate()
1954
1955
# D-Bus methods, signals & properties
1956
1957
# Interfaces
1958
1959
# Signals
1960
1181
gobject.timeout_add(timedelta_to_milliseconds
1182
(self.approval_duration),
1183
self._reset_approved)
1184
1185
1186
## D-Bus methods, signals & properties
1187
_interface = "se.recompile.Mandos.Client"
1188
1189
## Signals
1190
1961
1191
# CheckerCompleted - signal
1962
1192
@dbus.service.signal(_interface, signature="nxs")
1963
1193
def CheckerCompleted(self, exitcode, waitstatus, command):
1964
1194
"D-Bus signal"
1965
1195
pass
1966
1196
1967
1197
# CheckerStarted - signal
1968
1198
@dbus.service.signal(_interface, signature="s")
1969
1199
def CheckerStarted(self, command):
1970
1200
"D-Bus signal"
1971
1201
pass
1972
1202
1973
1203
# PropertyChanged - signal
1974
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1975
1204
@dbus.service.signal(_interface, signature="sv")
1976
1205
def PropertyChanged(self, property, value):
1977
1206
"D-Bus signal"
1978
1207
pass
1979
1208
1980
1209
# GotSecret - signal
1981
1210
@dbus.service.signal(_interface)
1982
1211
def GotSecret(self):
1985
1214
server to mandos-client
1986
1215
"""
1987
1216
pass
1988
1217
1989
1218
# Rejected - signal
1990
1219
@dbus.service.signal(_interface, signature="s")
1991
1220
def Rejected(self, reason):
1992
1221
"D-Bus signal"
1993
1222
pass
1994
1223
1995
1224
# NeedApproval - signal
1996
1225
@dbus.service.signal(_interface, signature="tb")
1997
1226
def NeedApproval(self, timeout, default):
1998
1227
"D-Bus signal"
1999
1228
return self.need_approval()
2000
2001
# Methods
2002
1229
1230
# NeRwequest - signal
1231
@dbus.service.signal(_interface, signature="s")
1232
def NewRequest(self, ip):
1233
"""D-Bus signal
1234
Is sent after a client request a password.
1235
"""
1236
pass
1237
1238
## Methods
1239
2003
1240
# Approve - method
2004
1241
@dbus.service.method(_interface, in_signature="b")
2005
1242
def Approve(self, value):
2006
1243
self.approve(value)
2007
1244
2008
1245
# CheckedOK - method
2009
1246
@dbus.service.method(_interface)
2010
1247
def CheckedOK(self):
2011
1248
self.checked_ok()
2012
1249
2013
1250
# Enable - method
2014
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2015
1251
@dbus.service.method(_interface)
2016
1252
def Enable(self):
2017
1253
"D-Bus method"
2018
1254
self.enable()
2019
1255
2020
1256
# StartChecker - method
2021
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2022
1257
@dbus.service.method(_interface)
2023
1258
def StartChecker(self):
2024
1259
"D-Bus method"
2025
1260
self.start_checker()
2026
1261
2027
1262
# Disable - method
2028
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2029
1263
@dbus.service.method(_interface)
2030
1264
def Disable(self):
2031
1265
"D-Bus method"
2032
1266
self.disable()
2033
1267
2034
1268
# StopChecker - method
2035
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
2036
1269
@dbus.service.method(_interface)
2037
1270
def StopChecker(self):
2038
1271
self.stop_checker()
2039
2040
# Properties
2041
1272
1273
## Properties
1274
2042
1275
# ApprovalPending - property
2043
1276
@dbus_service_property(_interface, signature="b", access="read")
2044
1277
def ApprovalPending_dbus_property(self):
2045
1278
return dbus.Boolean(bool(self.approvals_pending))
2046
1279
2047
1280
# ApprovedByDefault - property
2048
@dbus_service_property(_interface,
2049
signature="b",
1281
@dbus_service_property(_interface, signature="b",
2050
1282
access="readwrite")
2051
1283
def ApprovedByDefault_dbus_property(self, value=None):
2052
1284
if value is None: # get
2053
1285
return dbus.Boolean(self.approved_by_default)
2054
1286
self.approved_by_default = bool(value)
2055
1287
2056
1288
# ApprovalDelay - property
2057
@dbus_service_property(_interface,
2058
signature="t",
1289
@dbus_service_property(_interface, signature="t",
2059
1290
access="readwrite")
2060
1291
def ApprovalDelay_dbus_property(self, value=None):
2061
1292
if value is None: # get
2062
return dbus.UInt64(self.approval_delay.total_seconds()
2063
* 1000)
1293
return dbus.UInt64(self.approval_delay_milliseconds())
2064
1294
self.approval_delay = datetime.timedelta(0, 0, 0, value)
2065
1295
2066
1296
# ApprovalDuration - property
2067
@dbus_service_property(_interface,
2068
signature="t",
1297
@dbus_service_property(_interface, signature="t",
2069
1298
access="readwrite")
2070
1299
def ApprovalDuration_dbus_property(self, value=None):
2071
1300
if value is None: # get
2072
return dbus.UInt64(self.approval_duration.total_seconds()
2073
* 1000)
1301
return dbus.UInt64(timedelta_to_milliseconds(
1302
self.approval_duration))
2074
1303
self.approval_duration = datetime.timedelta(0, 0, 0, value)
2075
1304
2076
1305
# Name - property
2077
@dbus_annotations(
2078
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2079
1306
@dbus_service_property(_interface, signature="s", access="read")
2080
1307
def Name_dbus_property(self):
2081
1308
return dbus.String(self.name)
2082
2083
# KeyID - property
2084
@dbus_annotations(
2085
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2086
@dbus_service_property(_interface, signature="s", access="read")
2087
def KeyID_dbus_property(self):
2088
return dbus.String(self.key_id)
2089
1309
2090
1310
# Fingerprint - property
2091
@dbus_annotations(
2092
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2093
1311
@dbus_service_property(_interface, signature="s", access="read")
2094
1312
def Fingerprint_dbus_property(self):
2095
1313
return dbus.String(self.fingerprint)
2096
1314
2097
1315
# Host - property
2098
@dbus_service_property(_interface,
2099
signature="s",
1316
@dbus_service_property(_interface, signature="s",
2100
1317
access="readwrite")
2101
1318
def Host_dbus_property(self, value=None):
2102
1319
if value is None: # get
2103
1320
return dbus.String(self.host)
2104
self.host = str(value)
2105
1321
self.host = unicode(value)
1322
2106
1323
# Created - property
2107
@dbus_annotations(
2108
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2109
1324
@dbus_service_property(_interface, signature="s", access="read")
2110
1325
def Created_dbus_property(self):
2111
1326
return datetime_to_dbus(self.created)
2112
1327
2113
1328
# LastEnabled - property
2114
1329
@dbus_service_property(_interface, signature="s", access="read")
2115
1330
def LastEnabled_dbus_property(self):
2116
1331
return datetime_to_dbus(self.last_enabled)
2117
1332
2118
1333
# Enabled - property
2119
@dbus_service_property(_interface,
2120
signature="b",
1334
@dbus_service_property(_interface, signature="b",
2121
1335
access="readwrite")
2122
1336
def Enabled_dbus_property(self, value=None):
2123
1337
if value is None: # get
2126
1340
self.enable()
2127
1341
else:
2128
1342
self.disable()
2129
1343
2130
1344
# LastCheckedOK - property
2131
@dbus_service_property(_interface,
2132
signature="s",
1345
@dbus_service_property(_interface, signature="s",
2133
1346
access="readwrite")
2134
1347
def LastCheckedOK_dbus_property(self, value=None):
2135
1348
if value is not None:
2136
1349
self.checked_ok()
2137
1350
return
2138
1351
return datetime_to_dbus(self.last_checked_ok)
2139
2140
# LastCheckerStatus - property
2141
@dbus_service_property(_interface, signature="n", access="read")
2142
def LastCheckerStatus_dbus_property(self):
2143
return dbus.Int16(self.last_checker_status)
2144
1352
2145
1353
# Expires - property
2146
1354
@dbus_service_property(_interface, signature="s", access="read")
2147
1355
def Expires_dbus_property(self):
2148
1356
return datetime_to_dbus(self.expires)
2149
1357
2150
1358
# LastApprovalRequest - property
2151
1359
@dbus_service_property(_interface, signature="s", access="read")
2152
1360
def LastApprovalRequest_dbus_property(self):
2153
1361
return datetime_to_dbus(self.last_approval_request)
2154
1362
2155
1363
# Timeout - property
2156
@dbus_service_property(_interface,
2157
signature="t",
1364
@dbus_service_property(_interface, signature="t",
2158
1365
access="readwrite")
2159
1366
def Timeout_dbus_property(self, value=None):
2160
1367
if value is None: # get
2161
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2162
old_timeout = self.timeout
1368
return dbus.UInt64(self.timeout_milliseconds())
2163
1369
self.timeout = datetime.timedelta(0, 0, 0, value)
2164
# Reschedule disabling
1370
# Reschedule timeout
2165
1371
if self.enabled:
2166
1372
now = datetime.datetime.utcnow()
2167
self.expires += self.timeout - old_timeout
2168
if self.expires <= now:
1373
time_to_die = timedelta_to_milliseconds(
1374
(self.last_checked_ok + self.timeout) - now)
1375
if time_to_die <= 0:
2169
1376
# The timeout has passed
2170
1377
self.disable()
2171
1378
else:
1379
self.expires = (now +
1380
datetime.timedelta(milliseconds =
1381
time_to_die))
2172
1382
if (getattr(self, "disable_initiator_tag", None)
2173
1383
is None):
2174
1384
return
2175
GLib.source_remove(self.disable_initiator_tag)
2176
self.disable_initiator_tag = GLib.timeout_add(
2177
int((self.expires - now).total_seconds() * 1000),
2178
self.disable)
2179
1385
gobject.source_remove(self.disable_initiator_tag)
1386
self.disable_initiator_tag = (gobject.timeout_add
1387
(time_to_die,
1388
self.disable))
1389
2180
1390
# ExtendedTimeout - property
2181
@dbus_service_property(_interface,
2182
signature="t",
1391
@dbus_service_property(_interface, signature="t",
2183
1392
access="readwrite")
2184
1393
def ExtendedTimeout_dbus_property(self, value=None):
2185
1394
if value is None: # get
2186
return dbus.UInt64(self.extended_timeout.total_seconds()
2187
* 1000)
1395
return dbus.UInt64(self.extended_timeout_milliseconds())
2188
1396
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2189
1397
2190
1398
# Interval - property
2191
@dbus_service_property(_interface,
2192
signature="t",
1399
@dbus_service_property(_interface, signature="t",
2193
1400
access="readwrite")
2194
1401
def Interval_dbus_property(self, value=None):
2195
1402
if value is None: # get
2196
return dbus.UInt64(self.interval.total_seconds() * 1000)
1403
return dbus.UInt64(self.interval_milliseconds())
2197
1404
self.interval = datetime.timedelta(0, 0, 0, value)
2198
1405
if getattr(self, "checker_initiator_tag", None) is None:
2199
1406
return
2200
1407
if self.enabled:
2201
1408
# Reschedule checker run
2202
GLib.source_remove(self.checker_initiator_tag)
2203
self.checker_initiator_tag = GLib.timeout_add(
2204
value, self.start_checker)
2205
self.start_checker() # Start one now, too
2206
1409
gobject.source_remove(self.checker_initiator_tag)
1410
self.checker_initiator_tag = (gobject.timeout_add
1411
(value, self.start_checker))
1412
self.start_checker() # Start one now, too
1413
2207
1414
# Checker - property
2208
@dbus_service_property(_interface,
2209
signature="s",
1415
@dbus_service_property(_interface, signature="s",
2210
1416
access="readwrite")
2211
1417
def Checker_dbus_property(self, value=None):
2212
1418
if value is None: # get
2213
1419
return dbus.String(self.checker_command)
2214
self.checker_command = str(value)
2215
1420
self.checker_command = unicode(value)
1421
2216
1422
# CheckerRunning - property
2217
@dbus_service_property(_interface,
2218
signature="b",
1423
@dbus_service_property(_interface, signature="b",
2219
1424
access="readwrite")
2220
1425
def CheckerRunning_dbus_property(self, value=None):
2221
1426
if value is None: # get
2224
1429
self.start_checker()
2225
1430
else:
2226
1431
self.stop_checker()
2227
1432
2228
1433
# ObjectPath - property
2229
@dbus_annotations(
2230
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2231
"org.freedesktop.DBus.Deprecated": "true"})
2232
1434
@dbus_service_property(_interface, signature="o", access="read")
2233
1435
def ObjectPath_dbus_property(self):
2234
return self.dbus_object_path # is already a dbus.ObjectPath
2235
1436
return self.dbus_object_path # is already a dbus.ObjectPath
1437
2236
1438
# Secret = property
2237
@dbus_annotations(
2238
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2239
"invalidates"})
2240
@dbus_service_property(_interface,
2241
signature="ay",
2242
access="write",
2243
byte_arrays=True)
1439
@dbus_service_property(_interface, signature="ay",
1440
access="write", byte_arrays=True)
2244
1441
def Secret_dbus_property(self, value):
2245
self.secret = bytes(value)
2246
1442
self.secret = str(value)
1443
2247
1444
del _interface
2248
1445
2249
1446
2250
class ProxyClient:
2251
def __init__(self, child_pipe, key_id, fpr, address):
1447
class ProxyClient(object):
1448
def __init__(self, child_pipe, fpr, address):
2252
1449
self._pipe = child_pipe
2253
self._pipe.send(('init', key_id, fpr, address))
1450
self._pipe.send(('init', fpr, address))
2254
1451
if not self._pipe.recv():
2255
raise KeyError(key_id or fpr)
2256
1452
raise KeyError()
1453
2257
1454
def __getattribute__(self, name):
2258
1455
if name == '_pipe':
2259
1456
return super(ProxyClient, self).__getattribute__(name)
2262
1459
if data[0] == 'data':
2263
1460
return data[1]
2264
1461
if data[0] == 'function':
2265
2266
1462
def func(*args, **kwargs):
2267
1463
self._pipe.send(('funcall', name, args, kwargs))
2268
1464
return self._pipe.recv()[1]
2269
2270
1465
return func
2271
1466
2272
1467
def __setattr__(self, name, value):
2273
1468
if name == '_pipe':
2274
1469
return super(ProxyClient, self).__setattr__(name, value)
2275
1470
self._pipe.send(('setattr', name, value))
2276
1471
2277
1472
1473
class ClientDBusTransitional(ClientDBus):
1474
__metaclass__ = AlternateDBusNamesMetaclass
1475
1476
2278
1477
class ClientHandler(socketserver.BaseRequestHandler, object):
2279
1478
"""A class to handle client connections.
2280
1479
2281
1480
Instantiated once for each connection to handle it.
2282
1481
Note: This will run in its own forked process."""
2283
1482
2284
1483
def handle(self):
2285
1484
with contextlib.closing(self.server.child_pipe) as child_pipe:
2286
1485
logger.info("TCP connection from: %s",
2287
str(self.client_address))
1486
unicode(self.client_address))
2288
1487
logger.debug("Pipe FD: %d",
2289
1488
self.server.child_pipe.fileno())
2290
2291
session = gnutls.ClientSession(self.request)
2292
2293
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2294
# "+AES-256-CBC", "+SHA1",
2295
# "+COMP-NULL", "+CTYPE-OPENPGP",
2296
# "+DHE-DSS"))
1489
1490
session = (gnutls.connection
1491
.ClientSession(self.request,
1492
gnutls.connection
1493
.X509Credentials()))
1494
1495
# Note: gnutls.connection.X509Credentials is really a
1496
# generic GnuTLS certificate credentials object so long as
1497
# no X.509 keys are added to it. Therefore, we can use it
1498
# here despite using OpenPGP certificates.
1499
1500
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1501
# "+AES-256-CBC", "+SHA1",
1502
# "+COMP-NULL", "+CTYPE-OPENPGP",
1503
# "+DHE-DSS"))
2297
1504
# Use a fallback default, since this MUST be set.
2298
1505
priority = self.server.gnutls_priority
2299
1506
if priority is None:
2300
1507
priority = "NORMAL"
2301
gnutls.priority_set_direct(session._c_object,
2302
priority.encode("utf-8"),
2303
None)
2304
1508
(gnutls.library.functions
1509
.gnutls_priority_set_direct(session._c_object,
1510
priority, None))
1511
2305
1512
# Start communication using the Mandos protocol
2306
1513
# Get protocol number
2307
1514
line = self.request.makefile().readline()
2308
1515
logger.debug("Protocol version: %r", line)
2309
1516
try:
2310
1517
if int(line.strip().split()[0]) > 1:
2311
raise RuntimeError(line)
1518
raise RuntimeError
2312
1519
except (ValueError, IndexError, RuntimeError) as error:
2313
1520
logger.error("Unknown protocol version: %s", error)
2314
1521
return
2315
1522
2316
1523
# Start GnuTLS connection
2317
1524
try:
2318
1525
session.handshake()
2319
except gnutls.Error as error:
1526
except gnutls.errors.GNUTLSError as error:
2320
1527
logger.warning("Handshake failed: %s", error)
2321
1528
# Do not run session.bye() here: the session is not
2322
1529
# established. Just abandon the request.
2323
1530
return
2324
1531
logger.debug("Handshake succeeded")
2325
1532
2326
1533
approval_required = False
2327
1534
try:
2328
if gnutls.has_rawpk:
2329
fpr = b""
2330
try:
2331
key_id = self.key_id(
2332
self.peer_certificate(session))
2333
except (TypeError, gnutls.Error) as error:
2334
logger.warning("Bad certificate: %s", error)
2335
return
2336
logger.debug("Key ID: %s", key_id)
2337
2338
else:
2339
key_id = b""
2340
try:
2341
fpr = self.fingerprint(
2342
self.peer_certificate(session))
2343
except (TypeError, gnutls.Error) as error:
2344
logger.warning("Bad certificate: %s", error)
2345
return
2346
logger.debug("Fingerprint: %s", fpr)
2347
2348
try:
2349
client = ProxyClient(child_pipe, key_id, fpr,
1535
try:
1536
fpr = self.fingerprint(self.peer_certificate
1537
(session))
1538
except (TypeError,
1539
gnutls.errors.GNUTLSError) as error:
1540
logger.warning("Bad certificate: %s", error)
1541
return
1542
logger.debug("Fingerprint: %s", fpr)
1543
1544
try:
1545
client = ProxyClient(child_pipe, fpr,
2350
1546
self.client_address)
2351
1547
except KeyError:
2352
1548
return
2353
1549
1550
if self.server.use_dbus:
1551
# Emit D-Bus signal
1552
client.NewRequest(str(self.client_address))
1553
2354
1554
if client.approval_delay:
2355
1555
delay = client.approval_delay
2356
1556
client.approvals_pending += 1
2357
1557
approval_required = True
2358
1558
2359
1559
while True:
2360
1560
if not client.enabled:
2361
1561
logger.info("Client %s is disabled",
2362
client.name)
1562
client.name)
2363
1563
if self.server.use_dbus:
2364
1564
# Emit D-Bus signal
2365
1565
client.Rejected("Disabled")
2366
1566
return
2367
1567
2368
1568
if client.approved or not client.approval_delay:
2369
# We are approved or approval is disabled
1569
#We are approved or approval is disabled
2370
1570
break
2371
1571
elif client.approved is None:
2372
1572
logger.info("Client %s needs approval",
2374
1574
if self.server.use_dbus:
2375
1575
# Emit D-Bus signal
2376
1576
client.NeedApproval(
2377
client.approval_delay.total_seconds()
2378
* 1000, client.approved_by_default)
1577
client.approval_delay_milliseconds(),
1578
client.approved_by_default)
2379
1579
else:
2380
1580
logger.warning("Client %s was not approved",
2381
1581
client.name)
2383
1583
# Emit D-Bus signal
2384
1584
client.Rejected("Denied")
2385
1585
return
2386
2387
# wait until timeout or approved
1586
1587
#wait until timeout or approved
2388
1588
time = datetime.datetime.now()
2389
1589
client.changedstate.acquire()
2390
client.changedstate.wait(delay.total_seconds())
1590
(client.changedstate.wait
1591
(float(client.timedelta_to_milliseconds(delay)
1592
/ 1000)))
2391
1593
client.changedstate.release()
2392
1594
time2 = datetime.datetime.now()
2393
1595
if (time2 - time) >= delay:
2403
1605
break
2404
1606
else:
2405
1607
delay -= time2 - time
2406
2407
try:
2408
session.send(client.secret)
2409
except gnutls.Error as error:
2410
logger.warning("gnutls send failed",
2411
exc_info=error)
2412
return
2413
1608
1609
sent_size = 0
1610
while sent_size < len(client.secret):
1611
try:
1612
sent = session.send(client.secret[sent_size:])
1613
except gnutls.errors.GNUTLSError as error:
1614
logger.warning("gnutls send failed")
1615
return
1616
logger.debug("Sent: %d, remaining: %d",
1617
sent, len(client.secret)
1618
- (sent_size + sent))
1619
sent_size += sent
1620
2414
1621
logger.info("Sending secret to %s", client.name)
2415
1622
# bump the timeout using extended_timeout
2416
client.bump_timeout(client.extended_timeout)
1623
client.checked_ok(client.extended_timeout)
2417
1624
if self.server.use_dbus:
2418
1625
# Emit D-Bus signal
2419
1626
client.GotSecret()
2420
1627
2421
1628
finally:
2422
1629
if approval_required:
2423
1630
client.approvals_pending -= 1
2424
1631
try:
2425
1632
session.bye()
2426
except gnutls.Error as error:
2427
logger.warning("GnuTLS bye failed",
2428
exc_info=error)
2429
1633
except gnutls.errors.GNUTLSError as error:
1634
logger.warning("GnuTLS bye failed")
1635
2430
1636
@staticmethod
2431
1637
def peer_certificate(session):
2432
"Return the peer's certificate as a bytestring"
2433
try:
2434
cert_type = gnutls.certificate_type_get2(session._c_object,
2435
gnutls.CTYPE_PEERS)
2436
except AttributeError:
2437
cert_type = gnutls.certificate_type_get(session._c_object)
2438
if gnutls.has_rawpk:
2439
valid_cert_types = frozenset((gnutls.CRT_RAWPK,))
2440
else:
2441
valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))
2442
# If not a valid certificate type...
2443
if cert_type not in valid_cert_types:
2444
logger.info("Cert type %r not in %r", cert_type,
2445
valid_cert_types)
2446
# ...return invalid data
2447
return b""
1638
"Return the peer's OpenPGP certificate as a bytestring"
1639
# If not an OpenPGP certificate...
1640
if (gnutls.library.functions
1641
.gnutls_certificate_type_get(session._c_object)
1642
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1643
# ...do the normal thing
1644
return session.peer_certificate
2448
1645
list_size = ctypes.c_uint(1)
2449
cert_list = (gnutls.certificate_get_peers
1646
cert_list = (gnutls.library.functions
1647
.gnutls_certificate_get_peers
2450
1648
(session._c_object, ctypes.byref(list_size)))
2451
1649
if not bool(cert_list) and list_size.value != 0:
2452
raise gnutls.Error("error getting peer certificate")
1650
raise gnutls.errors.GNUTLSError("error getting peer"
1651
" certificate")
2453
1652
if list_size.value == 0:
2454
1653
return None
2455
1654
cert = cert_list[0]
2456
1655
return ctypes.string_at(cert.data, cert.size)
2457
2458
@staticmethod
2459
def key_id(certificate):
2460
"Convert a certificate bytestring to a hexdigit key ID"
2461
# New GnuTLS "datum" with the public key
2462
datum = gnutls.datum_t(
2463
ctypes.cast(ctypes.c_char_p(certificate),
2464
ctypes.POINTER(ctypes.c_ubyte)),
2465
ctypes.c_uint(len(certificate)))
2466
# XXX all these need to be created in the gnutls "module"
2467
# New empty GnuTLS certificate
2468
pubkey = gnutls.pubkey_t()
2469
gnutls.pubkey_init(ctypes.byref(pubkey))
2470
# Import the raw public key into the certificate
2471
gnutls.pubkey_import(pubkey,
2472
ctypes.byref(datum),
2473
gnutls.X509_FMT_DER)
2474
# New buffer for the key ID
2475
buf = ctypes.create_string_buffer(32)
2476
buf_len = ctypes.c_size_t(len(buf))
2477
# Get the key ID from the raw public key into the buffer
2478
gnutls.pubkey_get_key_id(
2479
pubkey,
2480
gnutls.KEYID_USE_SHA256,
2481
ctypes.cast(ctypes.byref(buf),
2482
ctypes.POINTER(ctypes.c_ubyte)),
2483
ctypes.byref(buf_len))
2484
# Deinit the certificate
2485
gnutls.pubkey_deinit(pubkey)
2486
2487
# Convert the buffer to a Python bytestring
2488
key_id = ctypes.string_at(buf, buf_len.value)
2489
# Convert the bytestring to hexadecimal notation
2490
hex_key_id = binascii.hexlify(key_id).upper()
2491
return hex_key_id
2492
1656
2493
1657
@staticmethod
2494
1658
def fingerprint(openpgp):
2495
1659
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2496
1660
# New GnuTLS "datum" with the OpenPGP public key
2497
datum = gnutls.datum_t(
2498
ctypes.cast(ctypes.c_char_p(openpgp),
2499
ctypes.POINTER(ctypes.c_ubyte)),
2500
ctypes.c_uint(len(openpgp)))
1661
datum = (gnutls.library.types
1662
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1663
ctypes.POINTER
1664
(ctypes.c_ubyte)),
1665
ctypes.c_uint(len(openpgp))))
2501
1666
# New empty GnuTLS certificate
2502
crt = gnutls.openpgp_crt_t()
2503
gnutls.openpgp_crt_init(ctypes.byref(crt))
1667
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1668
(gnutls.library.functions
1669
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2504
1670
# Import the OpenPGP public key into the certificate
2505
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2506
gnutls.OPENPGP_FMT_RAW)
1671
(gnutls.library.functions
1672
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1673
gnutls.library.constants
1674
.GNUTLS_OPENPGP_FMT_RAW))
2507
1675
# Verify the self signature in the key
2508
1676
crtverify = ctypes.c_uint()
2509
gnutls.openpgp_crt_verify_self(crt, 0,
2510
ctypes.byref(crtverify))
1677
(gnutls.library.functions
1678
.gnutls_openpgp_crt_verify_self(crt, 0,
1679
ctypes.byref(crtverify)))
2511
1680
if crtverify.value != 0:
2512
gnutls.openpgp_crt_deinit(crt)
2513
raise gnutls.CertificateSecurityError(code
2514
=crtverify.value)
1681
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1682
raise (gnutls.errors.CertificateSecurityError
1683
("Verify failed"))
2515
1684
# New buffer for the fingerprint
2516
1685
buf = ctypes.create_string_buffer(20)
2517
1686
buf_len = ctypes.c_size_t()
2518
1687
# Get the fingerprint from the certificate into the buffer
2519
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2520
ctypes.byref(buf_len))
1688
(gnutls.library.functions
1689
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1690
ctypes.byref(buf_len)))
2521
1691
# Deinit the certificate
2522
gnutls.openpgp_crt_deinit(crt)
1692
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2523
1693
# Convert the buffer to a Python bytestring
2524
1694
fpr = ctypes.string_at(buf, buf_len.value)
2525
1695
# Convert the bytestring to hexadecimal notation
2527
1697
return hex_fpr
2528
1698
2529
1699
2530
class MultiprocessingMixIn:
1700
class MultiprocessingMixIn(object):
2531
1701
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2532
2533
1702
def sub_process_main(self, request, address):
2534
1703
try:
2535
1704
self.finish_request(request, address)
2536
1705
except Exception:
2537
1706
self.handle_error(request, address)
2538
1707
self.close_request(request)
2539
1708
2540
1709
def process_request(self, request, address):
2541
1710
"""Start a new process to process the request."""
2542
proc = multiprocessing.Process(target=self.sub_process_main,
2543
args=(request, address))
1711
proc = multiprocessing.Process(target = self.sub_process_main,
1712
args = (request,
1713
address))
2544
1714
proc.start()
2545
1715
return proc
2546
1716
2547
1717
2548
class MultiprocessingMixInWithPipe(MultiprocessingMixIn):
1718
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2549
1719
""" adds a pipe to the MixIn """
2550
2551
1720
def process_request(self, request, client_address):
2552
1721
"""Overrides and wraps the original process_request().
2553
1722
2554
1723
This function creates a new pipe in self.pipe
2555
1724
"""
2556
1725
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2557
1726
2558
1727
proc = MultiprocessingMixIn.process_request(self, request,
2559
1728
client_address)
2560
1729
self.child_pipe.close()
2561
1730
self.add_pipe(parent_pipe, proc)
2562
1731
2563
1732
def add_pipe(self, parent_pipe, proc):
2564
1733
"""Dummy function; override as necessary"""
2565
raise NotImplementedError()
1734
raise NotImplementedError
2566
1735
2567
1736
2568
1737
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2569
socketserver.TCPServer):
1738
socketserver.TCPServer, object):
2570
1739
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2571
1740
2572
1741
Attributes:
2573
1742
enabled: Boolean; whether this server is activated yet
2574
1743
interface: None or a network interface name (string)
2575
1744
use_ipv6: Boolean; to use IPv6 or not
2576
1745
"""
2577
2578
1746
def __init__(self, server_address, RequestHandlerClass,
2579
interface=None,
2580
use_ipv6=True,
2581
socketfd=None):
2582
"""If socketfd is set, use that file descriptor instead of
2583
creating a new one with socket.socket().
2584
"""
1747
interface=None, use_ipv6=True):
2585
1748
self.interface = interface
2586
1749
if use_ipv6:
2587
1750
self.address_family = socket.AF_INET6
2588
if socketfd is not None:
2589
# Save the file descriptor
2590
self.socketfd = socketfd
2591
# Save the original socket.socket() function
2592
self.socket_socket = socket.socket
2593
2594
# To implement --socket, we monkey patch socket.socket.
2595
#
2596
# (When socketserver.TCPServer is a new-style class, we
2597
# could make self.socket into a property instead of monkey
2598
# patching socket.socket.)
2599
#
2600
# Create a one-time-only replacement for socket.socket()
2601
@functools.wraps(socket.socket)
2602
def socket_wrapper(*args, **kwargs):
2603
# Restore original function so subsequent calls are
2604
# not affected.
2605
socket.socket = self.socket_socket
2606
del self.socket_socket
2607
# This time only, return a new socket object from the
2608
# saved file descriptor.
2609
return socket.fromfd(self.socketfd, *args, **kwargs)
2610
# Replace socket.socket() function with wrapper
2611
socket.socket = socket_wrapper
2612
# The socketserver.TCPServer.__init__ will call
2613
# socket.socket(), which might be our replacement,
2614
# socket_wrapper(), if socketfd was set.
2615
1751
socketserver.TCPServer.__init__(self, server_address,
2616
1752
RequestHandlerClass)
2617
2618
1753
def server_bind(self):
2619
1754
"""This overrides the normal server_bind() function
2620
1755
to bind to an interface if one was specified, and also NOT to
2621
1756
bind to an address or port if they were not specified."""
2622
global SO_BINDTODEVICE
2623
1757
if self.interface is not None:
2624
1758
if SO_BINDTODEVICE is None:
2625
# Fall back to a hard-coded value which seems to be
2626
# common enough.
2627
logger.warning("SO_BINDTODEVICE not found, trying 25")
2628
SO_BINDTODEVICE = 25
2629
try:
2630
self.socket.setsockopt(
2631
socket.SOL_SOCKET, SO_BINDTODEVICE,
2632
(self.interface + "\0").encode("utf-8"))
2633
except socket.error as error:
2634
if error.errno == errno.EPERM:
2635
logger.error("No permission to bind to"
2636
" interface %s", self.interface)
2637
elif error.errno == errno.ENOPROTOOPT:
2638
logger.error("SO_BINDTODEVICE not available;"
2639
" cannot bind to interface %s",
2640
self.interface)
2641
elif error.errno == errno.ENODEV:
2642
logger.error("Interface %s does not exist,"
2643
" cannot bind", self.interface)
2644
else:
2645
raise
1759
logger.error("SO_BINDTODEVICE does not exist;"
1760
" cannot bind to interface %s",
1761
self.interface)
1762
else:
1763
try:
1764
self.socket.setsockopt(socket.SOL_SOCKET,
1765
SO_BINDTODEVICE,
1766
str(self.interface
1767
+ '\0'))
1768
except socket.error as error:
1769
if error[0] == errno.EPERM:
1770
logger.error("No permission to"
1771
" bind to interface %s",
1772
self.interface)
1773
elif error[0] == errno.ENOPROTOOPT:
1774
logger.error("SO_BINDTODEVICE not available;"
1775
" cannot bind to interface %s",
1776
self.interface)
1777
else:
1778
raise
2646
1779
# Only bind(2) the socket if we really need to.
2647
1780
if self.server_address[0] or self.server_address[1]:
2648
if self.server_address[1]:
2649
self.allow_reuse_address = True
2650
1781
if not self.server_address[0]:
2651
1782
if self.address_family == socket.AF_INET6:
2652
any_address = "::" # in6addr_any
1783
any_address = "::" # in6addr_any
2653
1784
else:
2654
any_address = "0.0.0.0" # INADDR_ANY
1785
any_address = socket.INADDR_ANY
2655
1786
self.server_address = (any_address,
2656
1787
self.server_address[1])
2657
1788
elif not self.server_address[1]:
2658
self.server_address = (self.server_address[0], 0)
1789
self.server_address = (self.server_address[0],
1790
0)
2659
1791
# if self.interface:
2660
1792
# self.server_address = (self.server_address[0],
2661
1793
# 0, # port
2667
1799
2668
1800
class MandosServer(IPv6_TCPServer):
2669
1801
"""Mandos server.
2670
1802
2671
1803
Attributes:
2672
1804
clients: set of Client objects
2673
1805
gnutls_priority GnuTLS priority string
2674
1806
use_dbus: Boolean; to emit D-Bus signals or not
2675
2676
Assumes a GLib.MainLoop event loop.
1807
1808
Assumes a gobject.MainLoop event loop.
2677
1809
"""
2678
2679
1810
def __init__(self, server_address, RequestHandlerClass,
2680
interface=None,
2681
use_ipv6=True,
2682
clients=None,
2683
gnutls_priority=None,
2684
use_dbus=True,
2685
socketfd=None):
1811
interface=None, use_ipv6=True, clients=None,
1812
gnutls_priority=None, use_dbus=True):
2686
1813
self.enabled = False
2687
1814
self.clients = clients
2688
1815
if self.clients is None:
2691
1818
self.gnutls_priority = gnutls_priority
2692
1819
IPv6_TCPServer.__init__(self, server_address,
2693
1820
RequestHandlerClass,
2694
interface=interface,
2695
use_ipv6=use_ipv6,
2696
socketfd=socketfd)
2697
1821
interface = interface,
1822
use_ipv6 = use_ipv6)
2698
1823
def server_activate(self):
2699
1824
if self.enabled:
2700
1825
return socketserver.TCPServer.server_activate(self)
2701
1826
2702
1827
def enable(self):
2703
1828
self.enabled = True
2704
1829
2705
1830
def add_pipe(self, parent_pipe, proc):
2706
1831
# Call "handle_ipc" for both data and EOF events
2707
GLib.io_add_watch(
2708
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2709
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2710
functools.partial(self.handle_ipc,
2711
parent_pipe=parent_pipe,
2712
proc=proc))
2713
2714
def handle_ipc(self, source, condition,
2715
parent_pipe=None,
2716
proc=None,
2717
client_object=None):
1832
gobject.io_add_watch(parent_pipe.fileno(),
1833
gobject.IO_IN | gobject.IO_HUP,
1834
functools.partial(self.handle_ipc,
1835
parent_pipe =
1836
parent_pipe,
1837
proc = proc))
1838
1839
def handle_ipc(self, source, condition, parent_pipe=None,
1840
proc = None, client_object=None):
1841
condition_names = {
1842
gobject.IO_IN: "IN", # There is data to read.
1843
gobject.IO_OUT: "OUT", # Data can be written (without
1844
# blocking).
1845
gobject.IO_PRI: "PRI", # There is urgent data to read.
1846
gobject.IO_ERR: "ERR", # Error condition.
1847
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1848
# broken, usually for pipes and
1849
# sockets).
1850
}
1851
conditions_string = ' | '.join(name
1852
for cond, name in
1853
condition_names.iteritems()
1854
if cond & condition)
2718
1855
# error, or the other end of multiprocessing.Pipe has closed
2719
if condition & (GLib.IO_ERR | GLib.IO_HUP):
1856
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2720
1857
# Wait for other process to exit
2721
1858
proc.join()
2722
1859
return False
2723
1860
2724
1861
# Read a request from the child
2725
1862
request = parent_pipe.recv()
2726
1863
command = request[0]
2727
1864
2728
1865
if command == 'init':
2729
key_id = request[1].decode("ascii")
2730
fpr = request[2].decode("ascii")
2731
address = request[3]
2732
2733
for c in self.clients.values():
2734
if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"
2735
"27AE41E4649B934CA495991B7852B855"):
2736
continue
2737
if key_id and c.key_id == key_id:
2738
client = c
2739
break
2740
if fpr and c.fingerprint == fpr:
1866
fpr = request[1]
1867
address = request[2]
1868
1869
for c in self.clients.itervalues():
1870
if c.fingerprint == fpr:
2741
1871
client = c
2742
1872
break
2743
1873
else:
2744
logger.info("Client not found for key ID: %s, address"
2745
": %s", key_id or fpr, address)
1874
logger.info("Client not found for fingerprint: %s, ad"
1875
"dress: %s", fpr, address)
2746
1876
if self.use_dbus:
2747
1877
# Emit D-Bus signal
2748
mandos_dbus_service.ClientNotFound(key_id or fpr,
1878
mandos_dbus_service.ClientNotFound(fpr,
2749
1879
address[0])
2750
1880
parent_pipe.send(False)
2751
1881
return False
2752
2753
GLib.io_add_watch(
2754
GLib.IOChannel.unix_new(parent_pipe.fileno()),
2755
GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,
2756
functools.partial(self.handle_ipc,
2757
parent_pipe=parent_pipe,
2758
proc=proc,
2759
client_object=client))
1882
1883
gobject.io_add_watch(parent_pipe.fileno(),
1884
gobject.IO_IN | gobject.IO_HUP,
1885
functools.partial(self.handle_ipc,
1886
parent_pipe =
1887
parent_pipe,
1888
proc = proc,
1889
client_object =
1890
client))
2760
1891
parent_pipe.send(True)
2761
1892
# remove the old hook in favor of the new above hook on
2762
1893
# same fileno
2765
1896
funcname = request[1]
2766
1897
args = request[2]
2767
1898
kwargs = request[3]
2768
1899
2769
1900
parent_pipe.send(('data', getattr(client_object,
2770
1901
funcname)(*args,
2771
**kwargs)))
2772
1902
**kwargs)))
1903
2773
1904
if command == 'getattr':
2774
1905
attrname = request[1]
2775
if isinstance(client_object.__getattribute__(attrname),
2776
collections.abc.Callable):
2777
parent_pipe.send(('function', ))
1906
if callable(client_object.__getattribute__(attrname)):
1907
parent_pipe.send(('function',))
2778
1908
else:
2779
parent_pipe.send((
2780
'data', client_object.__getattribute__(attrname)))
2781
1909
parent_pipe.send(('data', client_object
1910
.__getattribute__(attrname)))
1911
2782
1912
if command == 'setattr':
2783
1913
attrname = request[1]
2784
1914
value = request[2]
2785
1915
setattr(client_object, attrname, value)
2786
1916
2787
1917
return True
2788
1918
2789
1919
2790
def rfc3339_duration_to_delta(duration):
2791
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2792
2793
>>> timedelta = datetime.timedelta
2794
>>> rfc3339_duration_to_delta("P7D") == timedelta(7)
2795
True
2796
>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)
2797
True
2798
>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)
2799
True
2800
>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)
2801
True
2802
>>> rfc3339_duration_to_delta("P1W") == timedelta(7)
2803
True
2804
>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)
2805
True
2806
>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)
2807
True
2808
>>> del timedelta
2809
"""
2810
2811
# Parsing an RFC 3339 duration with regular expressions is not
2812
# possible - there would have to be multiple places for the same
2813
# values, like seconds. The current code, while more esoteric, is
2814
# cleaner without depending on a parsing library. If Python had a
2815
# built-in library for parsing we would use it, but we'd like to
2816
# avoid excessive use of external libraries.
2817
2818
# New type for defining tokens, syntax, and semantics all-in-one
2819
Token = collections.namedtuple("Token", (
2820
"regexp", # To match token; if "value" is not None, must have
2821
# a "group" containing digits
2822
"value", # datetime.timedelta or None
2823
"followers")) # Tokens valid after this token
2824
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2825
# the "duration" ABNF definition in RFC 3339, Appendix A.
2826
token_end = Token(re.compile(r"$"), None, frozenset())
2827
token_second = Token(re.compile(r"(\d+)S"),
2828
datetime.timedelta(seconds=1),
2829
frozenset((token_end, )))
2830
token_minute = Token(re.compile(r"(\d+)M"),
2831
datetime.timedelta(minutes=1),
2832
frozenset((token_second, token_end)))
2833
token_hour = Token(re.compile(r"(\d+)H"),
2834
datetime.timedelta(hours=1),
2835
frozenset((token_minute, token_end)))
2836
token_time = Token(re.compile(r"T"),
2837
None,
2838
frozenset((token_hour, token_minute,
2839
token_second)))
2840
token_day = Token(re.compile(r"(\d+)D"),
2841
datetime.timedelta(days=1),
2842
frozenset((token_time, token_end)))
2843
token_month = Token(re.compile(r"(\d+)M"),
2844
datetime.timedelta(weeks=4),
2845
frozenset((token_day, token_end)))
2846
token_year = Token(re.compile(r"(\d+)Y"),
2847
datetime.timedelta(weeks=52),
2848
frozenset((token_month, token_end)))
2849
token_week = Token(re.compile(r"(\d+)W"),
2850
datetime.timedelta(weeks=1),
2851
frozenset((token_end, )))
2852
token_duration = Token(re.compile(r"P"), None,
2853
frozenset((token_year, token_month,
2854
token_day, token_time,
2855
token_week)))
2856
# Define starting values:
2857
# Value so far
2858
value = datetime.timedelta()
2859
found_token = None
2860
# Following valid tokens
2861
followers = frozenset((token_duration, ))
2862
# String left to parse
2863
s = duration
2864
# Loop until end token is found
2865
while found_token is not token_end:
2866
# Search for any currently valid tokens
2867
for token in followers:
2868
match = token.regexp.match(s)
2869
if match is not None:
2870
# Token found
2871
if token.value is not None:
2872
# Value found, parse digits
2873
factor = int(match.group(1), 10)
2874
# Add to value so far
2875
value += factor * token.value
2876
# Strip token from string
2877
s = token.regexp.sub("", s, 1)
2878
# Go to found token
2879
found_token = token
2880
# Set valid next tokens
2881
followers = found_token.followers
2882
break
2883
else:
2884
# No currently valid tokens were found
2885
raise ValueError("Invalid RFC 3339 duration: {!r}"
2886
.format(duration))
2887
# End token found
2888
return value
2889
2890
2891
1920
def string_to_delta(interval):
2892
1921
"""Parse a string and return a datetime.timedelta
2893
2894
>>> string_to_delta('7d') == datetime.timedelta(7)
2895
True
2896
>>> string_to_delta('60s') == datetime.timedelta(0, 60)
2897
True
2898
>>> string_to_delta('60m') == datetime.timedelta(0, 3600)
2899
True
2900
>>> string_to_delta('24h') == datetime.timedelta(1)
2901
True
2902
>>> string_to_delta('1w') == datetime.timedelta(7)
2903
True
2904
>>> string_to_delta('5m 30s') == datetime.timedelta(0, 330)
2905
True
1922
1923
>>> string_to_delta('7d')
1924
datetime.timedelta(7)
1925
>>> string_to_delta('60s')
1926
datetime.timedelta(0, 60)
1927
>>> string_to_delta('60m')
1928
datetime.timedelta(0, 3600)
1929
>>> string_to_delta('24h')
1930
datetime.timedelta(1)
1931
>>> string_to_delta('1w')
1932
datetime.timedelta(7)
1933
>>> string_to_delta('5m 30s')
1934
datetime.timedelta(0, 330)
2906
1935
"""
2907
2908
try:
2909
return rfc3339_duration_to_delta(interval)
2910
except ValueError:
2911
pass
2912
2913
1936
timevalue = datetime.timedelta(0)
2914
1937
for s in interval.split():
2915
1938
try:
2916
suffix = s[-1]
1939
suffix = unicode(s[-1])
2917
1940
value = int(s[:-1])
2918
1941
if suffix == "d":
2919
1942
delta = datetime.timedelta(value)
2926
1949
elif suffix == "w":
2927
1950
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2928
1951
else:
2929
raise ValueError("Unknown suffix {!r}".format(suffix))
2930
except IndexError as e:
1952
raise ValueError("Unknown suffix %r" % suffix)
1953
except (ValueError, IndexError) as e:
2931
1954
raise ValueError(*(e.args))
2932
1955
timevalue += delta
2933
1956
return timevalue
2934
1957
2935
1958
2936
def daemon(nochdir=False, noclose=False):
1959
def daemon(nochdir = False, noclose = False):
2937
1960
"""See daemon(3). Standard BSD Unix function.
2938
1961
2939
1962
This should really exist as os.daemon, but it doesn't (yet)."""
2940
1963
if os.fork():
2941
1964
sys.exit()
2946
1969
sys.exit()
2947
1970
if not noclose:
2948
1971
# Close all standard open file descriptors
2949
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1972
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2950
1973
if not stat.S_ISCHR(os.fstat(null).st_mode):
2951
1974
raise OSError(errno.ENODEV,
2952
"{} not a character device"
2953
.format(os.devnull))
1975
"%s not a character device"
1976
% os.path.devnull)
2954
1977
os.dup2(null, sys.stdin.fileno())
2955
1978
os.dup2(null, sys.stdout.fileno())
2956
1979
os.dup2(null, sys.stderr.fileno())
2959
1982
2960
1983
2961
1984
def main():
2962
1985
2963
1986
##################################################################
2964
1987
# Parsing of options, both command line and config file
2965
1988
2966
1989
parser = argparse.ArgumentParser()
2967
1990
parser.add_argument("-v", "--version", action="version",
2968
version="%(prog)s {}".format(version),
1991
version = "%%(prog)s %s" % version,
2969
1992
help="show version number and exit")
2970
1993
parser.add_argument("-i", "--interface", metavar="IF",
2971
1994
help="Bind to interface IF")
2977
2000
help="Run self-test")
2978
2001
parser.add_argument("--debug", action="store_true",
2979
2002
help="Debug mode; run in foreground and log"
2980
" to terminal", default=None)
2003
" to terminal")
2981
2004
parser.add_argument("--debuglevel", metavar="LEVEL",
2982
2005
help="Debug level for stdout output")
2983
2006
parser.add_argument("--priority", help="GnuTLS"
2990
2013
" files")
2991
2014
parser.add_argument("--no-dbus", action="store_false",
2992
2015
dest="use_dbus", help="Do not provide D-Bus"
2993
" system bus interface", default=None)
2016
" system bus interface")
2994
2017
parser.add_argument("--no-ipv6", action="store_false",
2995
dest="use_ipv6", help="Do not use IPv6",
2996
default=None)
2018
dest="use_ipv6", help="Do not use IPv6")
2997
2019
parser.add_argument("--no-restore", action="store_false",
2998
2020
dest="restore", help="Do not restore stored"
2999
" state", default=None)
3000
parser.add_argument("--socket", type=int,
3001
help="Specify a file descriptor to a network"
3002
" socket to use instead of creating one")
2021
" state")
3003
2022
parser.add_argument("--statedir", metavar="DIR",
3004
2023
help="Directory to save/restore state in")
3005
parser.add_argument("--foreground", action="store_true",
3006
help="Run in foreground", default=None)
3007
parser.add_argument("--no-zeroconf", action="store_false",
3008
dest="zeroconf", help="Do not use Zeroconf",
3009
default=None)
3010
2024
3011
2025
options = parser.parse_args()
3012
2026
2027
if options.check:
2028
import doctest
2029
doctest.testmod()
2030
sys.exit()
2031
3013
2032
# Default values for config file for server-global settings
3014
if gnutls.has_rawpk:
3015
priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"
3016
":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")
3017
else:
3018
priority = ("SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
3019
":+SIGN-DSA-SHA256")
3020
server_defaults = {"interface": "",
3021
"address": "",
3022
"port": "",
3023
"debug": "False",
3024
"priority": priority,
3025
"servicename": "Mandos",
3026
"use_dbus": "True",
3027
"use_ipv6": "True",
3028
"debuglevel": "",
3029
"restore": "True",
3030
"socket": "",
3031
"statedir": "/var/lib/mandos",
3032
"foreground": "False",
3033
"zeroconf": "True",
3034
}
3035
del priority
3036
2033
server_defaults = { "interface": "",
2034
"address": "",
2035
"port": "",
2036
"debug": "False",
2037
"priority":
2038
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2039
"servicename": "Mandos",
2040
"use_dbus": "True",
2041
"use_ipv6": "True",
2042
"debuglevel": "",
2043
"restore": "True",
2044
"statedir": "/var/lib/mandos"
2045
}
2046
3037
2047
# Parse config file for server-global settings
3038
server_config = configparser.ConfigParser(server_defaults)
2048
server_config = configparser.SafeConfigParser(server_defaults)
3039
2049
del server_defaults
3040
server_config.read(os.path.join(options.configdir, "mandos.conf"))
3041
# Convert the ConfigParser object to a dict
2050
server_config.read(os.path.join(options.configdir,
2051
"mandos.conf"))
2052
# Convert the SafeConfigParser object to a dict
3042
2053
server_settings = server_config.defaults()
3043
2054
# Use the appropriate methods on the non-string config options
3044
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3045
"foreground", "zeroconf"):
2055
for option in ("debug", "use_dbus", "use_ipv6"):
3046
2056
server_settings[option] = server_config.getboolean("DEFAULT",
3047
2057
option)
3048
2058
if server_settings["port"]:
3049
2059
server_settings["port"] = server_config.getint("DEFAULT",
3050
2060
"port")
3051
if server_settings["socket"]:
3052
server_settings["socket"] = server_config.getint("DEFAULT",
3053
"socket")
3054
# Later, stdin will, and stdout and stderr might, be dup'ed
3055
# over with an opened os.devnull. But we don't want this to
3056
# happen with a supplied network socket.
3057
if 0 <= server_settings["socket"] <= 2:
3058
server_settings["socket"] = os.dup(server_settings
3059
["socket"])
3060
2061
del server_config
3061
2062
3062
2063
# Override the settings from the config file with command line
3063
2064
# options, if set.
3064
2065
for option in ("interface", "address", "port", "debug",
3065
"priority", "servicename", "configdir", "use_dbus",
3066
"use_ipv6", "debuglevel", "restore", "statedir",
3067
"socket", "foreground", "zeroconf"):
2066
"priority", "servicename", "configdir",
2067
"use_dbus", "use_ipv6", "debuglevel", "restore",
2068
"statedir"):
3068
2069
value = getattr(options, option)
3069
2070
if value is not None:
3070
2071
server_settings[option] = value
3071
2072
del options
3072
2073
# Force all strings to be unicode
3073
2074
for option in server_settings.keys():
3074
if isinstance(server_settings[option], bytes):
3075
server_settings[option] = (server_settings[option]
3076
.decode("utf-8"))
3077
# Force all boolean options to be boolean
3078
for option in ("debug", "use_dbus", "use_ipv6", "restore",
3079
"foreground", "zeroconf"):
3080
server_settings[option] = bool(server_settings[option])
3081
# Debug implies foreground
3082
if server_settings["debug"]:
3083
server_settings["foreground"] = True
2075
if type(server_settings[option]) is str:
2076
server_settings[option] = unicode(server_settings[option])
3084
2077
# Now we have our good server settings in "server_settings"
3085
2078
3086
2079
##################################################################
3087
3088
if (not server_settings["zeroconf"]
3089
and not (server_settings["port"]
3090
or server_settings["socket"] != "")):
3091
parser.error("Needs port or socket to work without Zeroconf")
3092
2080
3093
2081
# For convenience
3094
2082
debug = server_settings["debug"]
3095
2083
debuglevel = server_settings["debuglevel"]
3097
2085
use_ipv6 = server_settings["use_ipv6"]
3098
2086
stored_state_path = os.path.join(server_settings["statedir"],
3099
2087
stored_state_file)
3100
foreground = server_settings["foreground"]
3101
zeroconf = server_settings["zeroconf"]
3102
2088
3103
2089
if debug:
3104
2090
initlogger(debug, logging.DEBUG)
3105
2091
else:
3108
2094
else:
3109
2095
level = getattr(logging, debuglevel.upper())
3110
2096
initlogger(debug, level)
3111
2097
3112
2098
if server_settings["servicename"] != "Mandos":
3113
syslogger.setFormatter(
3114
logging.Formatter('Mandos ({}) [%(process)d]:'
3115
' %(levelname)s: %(message)s'.format(
3116
server_settings["servicename"])))
3117
2099
syslogger.setFormatter(logging.Formatter
2100
('Mandos (%s) [%%(process)d]:'
2101
' %%(levelname)s: %%(message)s'
2102
% server_settings["servicename"]))
2103
3118
2104
# Parse config file with clients
3119
client_config = configparser.ConfigParser(Client.client_defaults)
2105
client_config = configparser.SafeConfigParser(Client
2106
.client_defaults)
3120
2107
client_config.read(os.path.join(server_settings["configdir"],
3121
2108
"clients.conf"))
3122
2109
3123
2110
global mandos_dbus_service
3124
2111
mandos_dbus_service = None
3125
3126
socketfd = None
3127
if server_settings["socket"] != "":
3128
socketfd = server_settings["socket"]
3129
tcp_server = MandosServer(
3130
(server_settings["address"], server_settings["port"]),
3131
ClientHandler,
3132
interface=(server_settings["interface"] or None),
3133
use_ipv6=use_ipv6,
3134
gnutls_priority=server_settings["priority"],
3135
use_dbus=use_dbus,
3136
socketfd=socketfd)
3137
if not foreground:
3138
pidfilename = "/run/mandos.pid"
3139
if not os.path.isdir("/run/."):
3140
pidfilename = "/var/run/mandos.pid"
3141
pidfile = None
3142
try:
3143
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
3144
except IOError as e:
3145
logger.error("Could not open file %r", pidfilename,
3146
exc_info=e)
3147
3148
for name, group in (("_mandos", "_mandos"),
3149
("mandos", "mandos"),
3150
("nobody", "nogroup")):
3151
try:
3152
uid = pwd.getpwnam(name).pw_uid
3153
gid = pwd.getpwnam(group).pw_gid
3154
break
2112
2113
tcp_server = MandosServer((server_settings["address"],
2114
server_settings["port"]),
2115
ClientHandler,
2116
interface=(server_settings["interface"]
2117
or None),
2118
use_ipv6=use_ipv6,
2119
gnutls_priority=
2120
server_settings["priority"],
2121
use_dbus=use_dbus)
2122
if not debug:
2123
pidfilename = "/var/run/mandos.pid"
2124
try:
2125
pidfile = open(pidfilename, "w")
2126
except IOError:
2127
logger.error("Could not open file %r", pidfilename)
2128
2129
try:
2130
uid = pwd.getpwnam("_mandos").pw_uid
2131
gid = pwd.getpwnam("_mandos").pw_gid
2132
except KeyError:
2133
try:
2134
uid = pwd.getpwnam("mandos").pw_uid
2135
gid = pwd.getpwnam("mandos").pw_gid
3155
2136
except KeyError:
3156
continue
3157
else:
3158
uid = 65534
3159
gid = 65534
2137
try:
2138
uid = pwd.getpwnam("nobody").pw_uid
2139
gid = pwd.getpwnam("nobody").pw_gid
2140
except KeyError:
2141
uid = 65534
2142
gid = 65534
3160
2143
try:
3161
2144
os.setgid(gid)
3162
2145
os.setuid(uid)
3163
if debug:
3164
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3165
gid))
3166
2146
except OSError as error:
3167
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3168
.format(uid, gid, os.strerror(error.errno)))
3169
if error.errno != errno.EPERM:
3170
raise
3171
2147
if error[0] != errno.EPERM:
2148
raise error
2149
3172
2150
if debug:
3173
2151
# Enable all possible GnuTLS debugging
3174
2152
3175
2153
# "Use a log level over 10 to enable all debugging options."
3176
2154
# - GnuTLS manual
3177
gnutls.global_set_log_level(11)
3178
3179
@gnutls.log_func
2155
gnutls.library.functions.gnutls_global_set_log_level(11)
2156
2157
@gnutls.library.types.gnutls_log_func
3180
2158
def debug_gnutls(level, string):
3181
2159
logger.debug("GnuTLS: %s", string[:-1])
3182
3183
gnutls.global_set_log_function(debug_gnutls)
3184
2160
2161
(gnutls.library.functions
2162
.gnutls_global_set_log_function(debug_gnutls))
2163
3185
2164
# Redirect stdin so all checkers get /dev/null
3186
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2165
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
3187
2166
os.dup2(null, sys.stdin.fileno())
3188
2167
if null > 2:
3189
2168
os.close(null)
3190
2169
3191
2170
# Need to fork before connecting to D-Bus
3192
if not foreground:
2171
if not debug:
3193
2172
# Close all input and output, do double fork, etc.
3194
2173
daemon()
3195
3196
if gi.version_info < (3, 10, 2):
3197
# multiprocessing will use threads, so before we use GLib we
3198
# need to inform GLib that threads will be used.
3199
GLib.threads_init()
3200
2174
2175
gobject.threads_init()
2176
3201
2177
global main_loop
3202
2178
# From the Avahi example code
3203
DBusGMainLoop(set_as_default=True)
3204
main_loop = GLib.MainLoop()
2179
DBusGMainLoop(set_as_default=True )
2180
main_loop = gobject.MainLoop()
3205
2181
bus = dbus.SystemBus()
3206
2182
# End of Avahi example code
3207
2183
if use_dbus:
3208
2184
try:
3209
2185
bus_name = dbus.service.BusName("se.recompile.Mandos",
3210
bus,
3211
do_not_queue=True)
3212
old_bus_name = dbus.service.BusName(
3213
"se.bsnet.fukt.Mandos", bus,
3214
do_not_queue=True)
3215
except dbus.exceptions.DBusException as e:
3216
logger.error("Disabling D-Bus:", exc_info=e)
2186
bus, do_not_queue=True)
2187
old_bus_name = (dbus.service.BusName
2188
("se.bsnet.fukt.Mandos", bus,
2189
do_not_queue=True))
2190
except dbus.exceptions.NameExistsException as e:
2191
logger.error(unicode(e) + ", disabling D-Bus")
3217
2192
use_dbus = False
3218
2193
server_settings["use_dbus"] = False
3219
2194
tcp_server.use_dbus = False
3220
if zeroconf:
3221
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3222
service = AvahiServiceToSyslog(
3223
name=server_settings["servicename"],
3224
servicetype="_mandos._tcp",
3225
protocol=protocol,
3226
bus=bus)
3227
if server_settings["interface"]:
3228
service.interface = if_nametoindex(
3229
server_settings["interface"].encode("utf-8"))
3230
2195
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2196
service = AvahiServiceToSyslog(name =
2197
server_settings["servicename"],
2198
servicetype = "_mandos._tcp",
2199
protocol = protocol, bus = bus)
2200
if server_settings["interface"]:
2201
service.interface = (if_nametoindex
2202
(str(server_settings["interface"])))
2203
3231
2204
global multiprocessing_manager
3232
2205
multiprocessing_manager = multiprocessing.Manager()
3233
2206
3234
2207
client_class = Client
3235
2208
if use_dbus:
3236
client_class = functools.partial(ClientDBus, bus=bus)
3237
2209
client_class = functools.partial(ClientDBusTransitional,
2210
bus = bus)
2211
3238
2212
client_settings = Client.config_parser(client_config)
3239
2213
old_client_settings = {}
3240
2214
clients_data = {}
3241
3242
# This is used to redirect stdout and stderr for checker processes
3243
global wnull
3244
wnull = open(os.devnull, "w") # A writable /dev/null
3245
# Only used if server is running in foreground but not in debug
3246
# mode
3247
if debug or not foreground:
3248
wnull.close()
3249
2215
3250
2216
# Get client data and settings from last running state.
3251
2217
if server_settings["restore"]:
3252
2218
try:
3253
2219
with open(stored_state_path, "rb") as stored_state:
3254
if sys.version_info.major == 2:
3255
clients_data, old_client_settings = pickle.load(
3256
stored_state)
3257
else:
3258
bytes_clients_data, bytes_old_client_settings = (
3259
pickle.load(stored_state, encoding="bytes"))
3260
# Fix bytes to strings
3261
# clients_data
3262
# .keys()
3263
clients_data = {(key.decode("utf-8")
3264
if isinstance(key, bytes)
3265
else key): value
3266
for key, value in
3267
bytes_clients_data.items()}
3268
del bytes_clients_data
3269
for key in clients_data:
3270
value = {(k.decode("utf-8")
3271
if isinstance(k, bytes) else k): v
3272
for k, v in
3273
clients_data[key].items()}
3274
clients_data[key] = value
3275
# .client_structure
3276
value["client_structure"] = [
3277
(s.decode("utf-8")
3278
if isinstance(s, bytes)
3279
else s) for s in
3280
value["client_structure"]]
3281
# .name, .host, and .checker_command
3282
for k in ("name", "host", "checker_command"):
3283
if isinstance(value[k], bytes):
3284
value[k] = value[k].decode("utf-8")
3285
if "key_id" not in value:
3286
value["key_id"] = ""
3287
elif "fingerprint" not in value:
3288
value["fingerprint"] = ""
3289
# old_client_settings
3290
# .keys()
3291
old_client_settings = {
3292
(key.decode("utf-8")
3293
if isinstance(key, bytes)
3294
else key): value
3295
for key, value in
3296
bytes_old_client_settings.items()}
3297
del bytes_old_client_settings
3298
# .host and .checker_command
3299
for value in old_client_settings.values():
3300
for attribute in ("host", "checker_command"):
3301
if isinstance(value[attribute], bytes):
3302
value[attribute] = (value[attribute]
3303
.decode("utf-8"))
2220
clients_data, old_client_settings = (pickle.load
2221
(stored_state))
3304
2222
os.remove(stored_state_path)
3305
2223
except IOError as e:
3306
if e.errno == errno.ENOENT:
3307
logger.warning("Could not load persistent state:"
3308
" {}".format(os.strerror(e.errno)))
3309
else:
3310
logger.critical("Could not load persistent state:",
3311
exc_info=e)
2224
logger.warning("Could not load persistent state: {0}"
2225
.format(e))
2226
if e.errno != errno.ENOENT:
3312
2227
raise
3313
2228
except EOFError as e:
3314
2229
logger.warning("Could not load persistent state: "
3315
"EOFError:",
3316
exc_info=e)
3317
2230
"EOFError: {0}".format(e))
2231
3318
2232
with PGPEngine() as pgp:
3319
for client_name, client in clients_data.items():
3320
# Skip removed clients
3321
if client_name not in client_settings:
3322
continue
3323
2233
for client_name, client in clients_data.iteritems():
3324
2234
# Decide which value to use after restoring saved state.
3325
2235
# We have three different values: Old config file,
3326
2236
# new config file, and saved state.
3331
2241
# For each value in new config, check if it
3332
2242
# differs from the old config value (Except for
3333
2243
# the "secret" attribute)
3334
if (name != "secret"
3335
and (value !=
3336
old_client_settings[client_name][name])):
2244
if (name != "secret" and
2245
value != old_client_settings[client_name]
2246
[name]):
3337
2247
client[name] = value
3338
2248
except KeyError:
3339
2249
pass
3340
2250
3341
2251
# Clients who has passed its expire date can still be
3342
# enabled if its last checker was successful. A Client
3343
# whose checker succeeded before we stored its state is
3344
# assumed to have successfully run all checkers during
3345
# downtime.
2252
# enabled if its last checker was successful. Clients
2253
# whose checker failed before we stored its state is
2254
# assumed to have failed all checkers during downtime.
3346
2255
if client["enabled"]:
3347
2256
if datetime.datetime.utcnow() >= client["expires"]:
3348
2257
if not client["last_checked_ok"]:
3349
2258
logger.warning(
3350
"disabling client {} - Client never "
3351
"performed a successful checker".format(
3352
client_name))
2259
"disabling client {0} - Client never "
2260
"performed a successfull checker"
2261
.format(client["name"]))
3353
2262
client["enabled"] = False
3354
2263
elif client["last_checker_status"] != 0:
3355
2264
logger.warning(
3356
"disabling client {} - Client last"
3357
" checker failed with error code"
3358
" {}".format(
3359
client_name,
3360
client["last_checker_status"]))
2265
"disabling client {0} - Client "
2266
"last checker failed with error code {1}"
2267
.format(client["name"],
2268
client["last_checker_status"]))
3361
2269
client["enabled"] = False
3362
2270
else:
3363
client["expires"] = (
3364
datetime.datetime.utcnow()
3365
+ client["timeout"])
2271
client["expires"] = (datetime.datetime
2272
.utcnow()
2273
+ client["timeout"])
3366
2274
logger.debug("Last checker succeeded,"
3367
" keeping {} enabled".format(
3368
client_name))
2275
" keeping {0} enabled"
2276
.format(client["name"]))
3369
2277
try:
3370
client["secret"] = pgp.decrypt(
3371
client["encrypted_secret"],
3372
client_settings[client_name]["secret"])
2278
client["secret"] = (
2279
pgp.decrypt(client["encrypted_secret"],
2280
client_settings[client_name]
2281
["secret"]))
3373
2282
except PGPError:
3374
2283
# If decryption fails, we use secret from new settings
3375
logger.debug("Failed to decrypt {} old secret".format(
3376
client_name))
3377
client["secret"] = (client_settings[client_name]
3378
["secret"])
2284
logger.debug("Failed to decrypt {0} old secret"
2285
.format(client_name))
2286
client["secret"] = (
2287
client_settings[client_name]["secret"])
3379
2288
2289
3380
2290
# Add/remove clients based on new changes made to config
3381
2291
for client_name in (set(old_client_settings)
3382
2292
- set(client_settings)):
3385
2295
- set(old_client_settings)):
3386
2296
clients_data[client_name] = client_settings[client_name]
3387
2297
3388
# Create all client objects
3389
for client_name, client in clients_data.items():
2298
# Create clients all clients
2299
for client_name, client in clients_data.iteritems():
3390
2300
tcp_server.clients[client_name] = client_class(
3391
name=client_name,
3392
settings=client,
3393
server_settings=server_settings)
3394
2301
name = client_name, settings = client)
2302
3395
2303
if not tcp_server.clients:
3396
2304
logger.warning("No clients defined")
3397
3398
if not foreground:
3399
if pidfile is not None:
3400
pid = os.getpid()
3401
try:
3402
with pidfile:
3403
print(pid, file=pidfile)
3404
except IOError:
3405
logger.error("Could not write to file %r with PID %d",
3406
pidfilename, pid)
3407
del pidfile
2305
2306
if not debug:
2307
try:
2308
with pidfile:
2309
pid = os.getpid()
2310
pidfile.write(str(pid) + "\n".encode("utf-8"))
2311
del pidfile
2312
except IOError:
2313
logger.error("Could not write to file %r with PID %d",
2314
pidfilename, pid)
2315
except NameError:
2316
# "pidfile" was never created
2317
pass
3408
2318
del pidfilename
3409
3410
for termsig in (signal.SIGHUP, signal.SIGTERM):
3411
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3412
lambda: main_loop.quit() and False)
3413
2319
signal.signal(signal.SIGINT, signal.SIG_IGN)
2320
2321
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2322
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2323
3414
2324
if use_dbus:
3415
3416
@alternate_dbus_interfaces(
3417
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3418
class MandosDBusService(DBusObjectWithObjectManager):
2325
class MandosDBusService(dbus.service.Object):
3419
2326
"""A D-Bus proxy object"""
3420
3421
2327
def __init__(self):
3422
2328
dbus.service.Object.__init__(self, bus, "/")
3423
3424
2329
_interface = "se.recompile.Mandos"
3425
2330
3426
2331
@dbus.service.signal(_interface, signature="o")
3427
2332
def ClientAdded(self, objpath):
3428
2333
"D-Bus signal"
3429
2334
pass
3430
2335
3431
2336
@dbus.service.signal(_interface, signature="ss")
3432
def ClientNotFound(self, key_id, address):
2337
def ClientNotFound(self, fingerprint, address):
3433
2338
"D-Bus signal"
3434
2339
pass
3435
3436
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3437
"true"})
2340
3438
2341
@dbus.service.signal(_interface, signature="os")
3439
2342
def ClientRemoved(self, objpath, name):
3440
2343
"D-Bus signal"
3441
2344
pass
3442
3443
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3444
"true"})
2345
3445
2346
@dbus.service.method(_interface, out_signature="ao")
3446
2347
def GetAllClients(self):
3447
2348
"D-Bus method"
3448
return dbus.Array(c.dbus_object_path for c in
3449
tcp_server.clients.values())
3450
3451
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3452
"true"})
2349
return dbus.Array(c.dbus_object_path
2350
for c in
2351
tcp_server.clients.itervalues())
2352
3453
2353
@dbus.service.method(_interface,
3454
2354
out_signature="a{oa{sv}}")
3455
2355
def GetAllClientsWithProperties(self):
3456
2356
"D-Bus method"
3457
2357
return dbus.Dictionary(
3458
{c.dbus_object_path: c.GetAll(
3459
"se.recompile.Mandos.Client")
3460
for c in tcp_server.clients.values()},
2358
((c.dbus_object_path, c.GetAll(""))
2359
for c in tcp_server.clients.itervalues()),
3461
2360
signature="oa{sv}")
3462
2361
3463
2362
@dbus.service.method(_interface, in_signature="o")
3464
2363
def RemoveClient(self, object_path):
3465
2364
"D-Bus method"
3466
for c in tcp_server.clients.values():
2365
for c in tcp_server.clients.itervalues():
3467
2366
if c.dbus_object_path == object_path:
3468
2367
del tcp_server.clients[c.name]
3469
2368
c.remove_from_connection()
3470
# Don't signal the disabling
2369
# Don't signal anything except ClientRemoved
3471
2370
c.disable(quiet=True)
3472
# Emit D-Bus signal for removal
3473
self.client_removed_signal(c)
2371
# Emit D-Bus signal
2372
self.ClientRemoved(object_path, c.name)
3474
2373
return
3475
2374
raise KeyError(object_path)
3476
2375
3477
2376
del _interface
3478
3479
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3480
out_signature="a{oa{sa{sv}}}")
3481
def GetManagedObjects(self):
3482
"""D-Bus method"""
3483
return dbus.Dictionary(
3484
{client.dbus_object_path:
3485
dbus.Dictionary(
3486
{interface: client.GetAll(interface)
3487
for interface in
3488
client._get_all_interface_names()})
3489
for client in tcp_server.clients.values()})
3490
3491
def client_added_signal(self, client):
3492
"""Send the new standard signal and the old signal"""
3493
if use_dbus:
3494
# New standard signal
3495
self.InterfacesAdded(
3496
client.dbus_object_path,
3497
dbus.Dictionary(
3498
{interface: client.GetAll(interface)
3499
for interface in
3500
client._get_all_interface_names()}))
3501
# Old signal
3502
self.ClientAdded(client.dbus_object_path)
3503
3504
def client_removed_signal(self, client):
3505
"""Send the new standard signal and the old signal"""
3506
if use_dbus:
3507
# New standard signal
3508
self.InterfacesRemoved(
3509
client.dbus_object_path,
3510
client._get_all_interface_names())
3511
# Old signal
3512
self.ClientRemoved(client.dbus_object_path,
3513
client.name)
3514
3515
mandos_dbus_service = MandosDBusService()
3516
3517
# Save modules to variables to exempt the modules from being
3518
# unloaded before the function registered with atexit() is run.
3519
mp = multiprocessing
3520
wn = wnull
3521
2377
2378
class MandosDBusServiceTransitional(MandosDBusService):
2379
__metaclass__ = AlternateDBusNamesMetaclass
2380
mandos_dbus_service = MandosDBusServiceTransitional()
2381
3522
2382
def cleanup():
3523
2383
"Cleanup function; run on exit"
3524
if zeroconf:
3525
service.cleanup()
3526
3527
mp.active_children()
3528
wn.close()
2384
service.cleanup()
2385
2386
multiprocessing.active_children()
3529
2387
if not (tcp_server.clients or client_settings):
3530
2388
return
3531
2389
3532
2390
# Store client before exiting. Secrets are encrypted with key
3533
2391
# based on what config file has. If config file is
3534
2392
# removed/edited, old secret will thus be unrecovable.
3535
2393
clients = {}
3536
2394
with PGPEngine() as pgp:
3537
for client in tcp_server.clients.values():
2395
for client in tcp_server.clients.itervalues():
3538
2396
key = client_settings[client.name]["secret"]
3539
2397
client.encrypted_secret = pgp.encrypt(client.secret,
3540
2398
key)
3541
2399
client_dict = {}
3542
2400
3543
2401
# A list of attributes that can not be pickled
3544
2402
# + secret.
3545
exclude = {"bus", "changedstate", "secret",
3546
"checker", "server_settings"}
3547
for name, typ in inspect.getmembers(dbus.service
3548
.Object):
2403
exclude = set(("bus", "changedstate", "secret",
2404
"checker"))
2405
for name, typ in (inspect.getmembers
2406
(dbus.service.Object)):
3549
2407
exclude.add(name)
3550
2408
3551
2409
client_dict["encrypted_secret"] = (client
3552
2410
.encrypted_secret)
3553
2411
for attr in client.client_structure:
3554
2412
if attr not in exclude:
3555
2413
client_dict[attr] = getattr(client, attr)
3556
2414
3557
2415
clients[client.name] = client_dict
3558
2416
del client_settings[client.name]["secret"]
3559
2417
3560
2418
try:
3561
with tempfile.NamedTemporaryFile(
3562
mode='wb',
3563
suffix=".pickle",
3564
prefix='clients-',
3565
dir=os.path.dirname(stored_state_path),
3566
delete=False) as stored_state:
3567
pickle.dump((clients, client_settings), stored_state,
3568
protocol=2)
3569
tempname = stored_state.name
2419
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2420
prefix="clients-",
2421
dir=os.path.dirname
2422
(stored_state_path))
2423
with os.fdopen(tempfd, "wb") as stored_state:
2424
pickle.dump((clients, client_settings), stored_state)
3570
2425
os.rename(tempname, stored_state_path)
3571
2426
except (IOError, OSError) as e:
2427
logger.warning("Could not save persistent state: {0}"
2428
.format(e))
3572
2429
if not debug:
3573
2430
try:
3574
2431
os.remove(tempname)
3575
2432
except NameError:
3576
2433
pass
3577
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3578
logger.warning("Could not save persistent state: {}"
3579
.format(os.strerror(e.errno)))
3580
else:
3581
logger.warning("Could not save persistent state:",
3582
exc_info=e)
3583
raise
3584
2434
if e.errno not in set((errno.ENOENT, errno.EACCES,
2435
errno.EEXIST)):
2436
raise e
2437
3585
2438
# Delete all clients, and settings from config
3586
2439
while tcp_server.clients:
3587
2440
name, client = tcp_server.clients.popitem()
3588
2441
if use_dbus:
3589
2442
client.remove_from_connection()
3590
# Don't signal the disabling
2443
# Don't signal anything except ClientRemoved
3591
2444
client.disable(quiet=True)
3592
# Emit D-Bus signal for removal
3593
2445
if use_dbus:
3594
mandos_dbus_service.client_removed_signal(client)
2446
# Emit D-Bus signal
2447
mandos_dbus_service.ClientRemoved(client
2448
.dbus_object_path,
2449
client.name)
3595
2450
client_settings.clear()
3596
2451
3597
2452
atexit.register(cleanup)
3598
3599
for client in tcp_server.clients.values():
2453
2454
for client in tcp_server.clients.itervalues():
3600
2455
if use_dbus:
3601
# Emit D-Bus signal for adding
3602
mandos_dbus_service.client_added_signal(client)
2456
# Emit D-Bus signal
2457
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3603
2458
# Need to initiate checking of clients
3604
2459
if client.enabled:
3605
2460
client.init_checker()
3606
2461
3607
2462
tcp_server.enable()
3608
2463
tcp_server.server_activate()
3609
2464
3610
2465
# Find out what port we got
3611
if zeroconf:
3612
service.port = tcp_server.socket.getsockname()[1]
2466
service.port = tcp_server.socket.getsockname()[1]
3613
2467
if use_ipv6:
3614
2468
logger.info("Now listening on address %r, port %d,"
3615
" flowinfo %d, scope_id %d",
3616
*tcp_server.socket.getsockname())
2469
" flowinfo %d, scope_id %d"
2470
% tcp_server.socket.getsockname())
3617
2471
else: # IPv4
3618
logger.info("Now listening on address %r, port %d",
3619
*tcp_server.socket.getsockname())
3620
3621
# service.interface = tcp_server.socket.getsockname()[3]
3622
2472
logger.info("Now listening on address %r, port %d"
2473
% tcp_server.socket.getsockname())
2474
2475
#service.interface = tcp_server.socket.getsockname()[3]
2476
3623
2477
try:
3624
if zeroconf:
3625
# From the Avahi example code
3626
try:
3627
service.activate()
3628
except dbus.exceptions.DBusException as error:
3629
logger.critical("D-Bus Exception", exc_info=error)
3630
cleanup()
3631
sys.exit(1)
3632
# End of Avahi example code
3633
3634
GLib.io_add_watch(
3635
GLib.IOChannel.unix_new(tcp_server.fileno()),
3636
GLib.PRIORITY_DEFAULT, GLib.IO_IN,
3637
lambda *args, **kwargs: (tcp_server.handle_request
3638
(*args[2:], **kwargs) or True))
3639
2478
# From the Avahi example code
2479
try:
2480
service.activate()
2481
except dbus.exceptions.DBusException as error:
2482
logger.critical("DBusException: %s", error)
2483
cleanup()
2484
sys.exit(1)
2485
# End of Avahi example code
2486
2487
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2488
lambda *args, **kwargs:
2489
(tcp_server.handle_request
2490
(*args[2:], **kwargs) or True))
2491
3640
2492
logger.debug("Starting main loop")
3641
2493
main_loop.run()
3642
2494
except AvahiError as error:
3643
logger.critical("Avahi Error", exc_info=error)
2495
logger.critical("AvahiError: %s", error)
3644
2496
cleanup()
3645
2497
sys.exit(1)
3646
2498
except KeyboardInterrupt:
3651
2503
# Must run before the D-Bus bus name gets deregistered
3652
2504
cleanup()
3653
2505
3654
3655
def should_only_run_tests():
3656
parser = argparse.ArgumentParser(add_help=False)
3657
parser.add_argument("--check", action='store_true')
3658
args, unknown_args = parser.parse_known_args()
3659
run_tests = args.check
3660
if run_tests:
3661
# Remove --check argument from sys.argv
3662
sys.argv[1:] = unknown_args
3663
return run_tests
3664
3665
# Add all tests from doctest strings
3666
def load_tests(loader, tests, none):
3667
import doctest
3668
tests.addTests(doctest.DocTestSuite())
3669
return tests
3670
3671
2506
if __name__ == '__main__':
3672
try:
3673
if should_only_run_tests():
3674
# Call using ./mandos --check [--verbose]
3675
unittest.main()
3676
else:
3677
main()
3678
finally:
3679
logging.shutdown()
2507
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0