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- Committer: Teddy Hogeborn
- Date: 2011-09-26 19:36:18 UTC
- mfrom: (24.1.184 mandos)
- Revision ID: teddy@fukt.bsnet.se-20110926193618-vtj5c9hena1maixx
Merge from Björn
- files added:
- DBUS-API
- debian/source
- files removed:
- debian/mandos-client.config
- files modified:
- .bzrignore
added
removed
mandos
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
# methods "add" and "remove" in the "AvahiService" class, the
10
# "server_state_changed" and "entry_group_state_changed" functions,
11
# and some lines in "main".
9
# methods "add", "remove", "server_state_changed",
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
# "AvahiService" class, and some lines in "main".
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12
#
13
13
# Everything else is
14
# Copyright © 2008 Teddy Hogeborn
15
# Copyright © 2008 Björn Påhlsson
14
# Copyright © 2008-2011 Teddy Hogeborn
15
# Copyright © 2008-2011 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
31
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
32
#
33
33
34
from __future__ import division, with_statement, absolute_import
34
from __future__ import (division, absolute_import, print_function,
35
unicode_literals)
35
36
36
import SocketServer
37
import SocketServer as socketserver
37
38
import socket
38
from optparse import OptionParser
39
import argparse
39
40
import datetime
40
41
import errno
41
42
import gnutls.crypto
44
45
import gnutls.library.functions
45
46
import gnutls.library.constants
46
47
import gnutls.library.types
47
import ConfigParser
48
import ConfigParser as configparser
48
49
import sys
49
50
import re
50
51
import os
51
52
import signal
52
from sets import Set
53
53
import subprocess
54
54
import atexit
55
55
import stat
56
56
import logging
57
57
import logging.handlers
58
58
import pwd
59
from contextlib import closing
59
import contextlib
60
import struct
61
import fcntl
62
import functools
63
import cPickle as pickle
64
import multiprocessing
60
65
61
66
import dbus
62
67
import dbus.service
65
70
from dbus.mainloop.glib import DBusGMainLoop
66
71
import ctypes
67
72
import ctypes.util
68
69
version = "1.0.2"
70
73
import xml.dom.minidom
74
import inspect
75
76
try:
77
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
78
except AttributeError:
79
try:
80
from IN import SO_BINDTODEVICE
81
except ImportError:
82
SO_BINDTODEVICE = None
83
84
85
version = "1.3.1"
86
87
#logger = logging.getLogger('mandos')
71
88
logger = logging.Logger('mandos')
72
89
syslogger = (logging.handlers.SysLogHandler
73
90
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
74
address = "/dev/log"))
91
address = str("/dev/log")))
75
92
syslogger.setFormatter(logging.Formatter
76
('Mandos: %(levelname)s: %(message)s'))
93
('Mandos [%(process)d]: %(levelname)s:'
94
' %(message)s'))
77
95
logger.addHandler(syslogger)
78
96
79
97
console = logging.StreamHandler()
80
console.setFormatter(logging.Formatter('%(name)s: %(levelname)s:'
98
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
99
' %(levelname)s:'
81
100
' %(message)s'))
82
101
logger.addHandler(console)
83
102
84
103
class AvahiError(Exception):
85
def __init__(self, value):
104
def __init__(self, value, *args, **kwargs):
86
105
self.value = value
87
super(AvahiError, self).__init__()
88
def __str__(self):
89
return repr(self.value)
106
super(AvahiError, self).__init__(value, *args, **kwargs)
107
def __unicode__(self):
108
return unicode(repr(self.value))
90
109
91
110
class AvahiServiceError(AvahiError):
92
111
pass
97
116
98
117
class AvahiService(object):
99
118
"""An Avahi (Zeroconf) service.
119
100
120
Attributes:
101
121
interface: integer; avahi.IF_UNSPEC or an interface index.
102
122
Used to optionally bind to the specified interface.
110
130
max_renames: integer; maximum number of renames
111
131
rename_count: integer; counter so we only rename after collisions
112
132
a sensible number of times
133
group: D-Bus Entry Group
134
server: D-Bus Server
135
bus: dbus.SystemBus()
113
136
"""
114
137
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
115
138
servicetype = None, port = None, TXT = None,
116
domain = "", host = "", max_renames = 32768):
139
domain = "", host = "", max_renames = 32768,
140
protocol = avahi.PROTO_UNSPEC, bus = None):
117
141
self.interface = interface
118
142
self.name = name
119
143
self.type = servicetype
123
147
self.host = host
124
148
self.rename_count = 0
125
149
self.max_renames = max_renames
150
self.protocol = protocol
151
self.group = None # our entry group
152
self.server = None
153
self.bus = bus
154
self.entry_group_state_changed_match = None
126
155
def rename(self):
127
156
"""Derived from the Avahi example code"""
128
157
if self.rename_count >= self.max_renames:
129
logger.critical(u"No suitable Zeroconf service name found"
130
u" after %i retries, exiting.",
158
logger.critical("No suitable Zeroconf service name found"
159
" after %i retries, exiting.",
131
160
self.rename_count)
132
161
raise AvahiServiceError("Too many renames")
133
self.name = server.GetAlternativeServiceName(self.name)
134
logger.info(u"Changing Zeroconf service name to %r ...",
135
str(self.name))
162
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
163
logger.info("Changing Zeroconf service name to %r ...",
164
self.name)
136
165
syslogger.setFormatter(logging.Formatter
137
('Mandos (%s): %%(levelname)s:'
138
' %%(message)s' % self.name))
166
('Mandos (%s) [%%(process)d]:'
167
' %%(levelname)s: %%(message)s'
168
% self.name))
139
169
self.remove()
140
self.add()
170
try:
171
self.add()
172
except dbus.exceptions.DBusException as error:
173
logger.critical("DBusException: %s", error)
174
self.cleanup()
175
os._exit(1)
141
176
self.rename_count += 1
142
177
def remove(self):
143
178
"""Derived from the Avahi example code"""
144
if group is not None:
145
group.Reset()
179
if self.entry_group_state_changed_match is not None:
180
self.entry_group_state_changed_match.remove()
181
self.entry_group_state_changed_match = None
182
if self.group is not None:
183
self.group.Reset()
146
184
def add(self):
147
185
"""Derived from the Avahi example code"""
148
global group
149
if group is None:
150
group = dbus.Interface(bus.get_object
151
(avahi.DBUS_NAME,
152
server.EntryGroupNew()),
153
avahi.DBUS_INTERFACE_ENTRY_GROUP)
154
group.connect_to_signal('StateChanged',
155
entry_group_state_changed)
156
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
157
service.name, service.type)
158
group.AddService(
159
self.interface, # interface
160
avahi.PROTO_INET6, # protocol
161
dbus.UInt32(0), # flags
162
self.name, self.type,
163
self.domain, self.host,
164
dbus.UInt16(self.port),
165
avahi.string_array_to_txt_array(self.TXT))
166
group.Commit()
167
168
# From the Avahi example code:
169
group = None # our entry group
170
# End of Avahi example code
171
172
173
def _datetime_to_dbus_struct(dt, variant_level=0):
174
"""Convert a UTC datetime.datetime() to a D-Bus struct.
175
The format is special to this application, since we could not find
176
any other standard way."""
177
return dbus.Struct((dbus.Int16(dt.year),
178
dbus.Byte(dt.month),
179
dbus.Byte(dt.day),
180
dbus.Byte(dt.hour),
181
dbus.Byte(dt.minute),
182
dbus.Byte(dt.second),
183
dbus.UInt32(dt.microsecond)),
184
signature="nyyyyyu",
185
variant_level=variant_level)
186
187
188
class Client(dbus.service.Object):
186
self.remove()
187
if self.group is None:
188
self.group = dbus.Interface(
189
self.bus.get_object(avahi.DBUS_NAME,
190
self.server.EntryGroupNew()),
191
avahi.DBUS_INTERFACE_ENTRY_GROUP)
192
self.entry_group_state_changed_match = (
193
self.group.connect_to_signal(
194
'StateChanged', self .entry_group_state_changed))
195
logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
196
self.name, self.type)
197
self.group.AddService(
198
self.interface,
199
self.protocol,
200
dbus.UInt32(0), # flags
201
self.name, self.type,
202
self.domain, self.host,
203
dbus.UInt16(self.port),
204
avahi.string_array_to_txt_array(self.TXT))
205
self.group.Commit()
206
def entry_group_state_changed(self, state, error):
207
"""Derived from the Avahi example code"""
208
logger.debug("Avahi entry group state change: %i", state)
209
210
if state == avahi.ENTRY_GROUP_ESTABLISHED:
211
logger.debug("Zeroconf service established.")
212
elif state == avahi.ENTRY_GROUP_COLLISION:
213
logger.info("Zeroconf service name collision.")
214
self.rename()
215
elif state == avahi.ENTRY_GROUP_FAILURE:
216
logger.critical("Avahi: Error in group state changed %s",
217
unicode(error))
218
raise AvahiGroupError("State changed: %s"
219
% unicode(error))
220
def cleanup(self):
221
"""Derived from the Avahi example code"""
222
if self.group is not None:
223
try:
224
self.group.Free()
225
except (dbus.exceptions.UnknownMethodException,
226
dbus.exceptions.DBusException) as e:
227
pass
228
self.group = None
229
self.remove()
230
def server_state_changed(self, state, error=None):
231
"""Derived from the Avahi example code"""
232
logger.debug("Avahi server state change: %i", state)
233
bad_states = { avahi.SERVER_INVALID:
234
"Zeroconf server invalid",
235
avahi.SERVER_REGISTERING: None,
236
avahi.SERVER_COLLISION:
237
"Zeroconf server name collision",
238
avahi.SERVER_FAILURE:
239
"Zeroconf server failure" }
240
if state in bad_states:
241
if bad_states[state] is not None:
242
if error is None:
243
logger.error(bad_states[state])
244
else:
245
logger.error(bad_states[state] + ": %r", error)
246
self.cleanup()
247
elif state == avahi.SERVER_RUNNING:
248
self.add()
249
else:
250
if error is None:
251
logger.debug("Unknown state: %r", state)
252
else:
253
logger.debug("Unknown state: %r: %r", state, error)
254
def activate(self):
255
"""Derived from the Avahi example code"""
256
if self.server is None:
257
self.server = dbus.Interface(
258
self.bus.get_object(avahi.DBUS_NAME,
259
avahi.DBUS_PATH_SERVER,
260
follow_name_owner_changes=True),
261
avahi.DBUS_INTERFACE_SERVER)
262
self.server.connect_to_signal("StateChanged",
263
self.server_state_changed)
264
self.server_state_changed(self.server.GetState())
265
266
267
def _timedelta_to_milliseconds(td):
268
"Convert a datetime.timedelta() to milliseconds"
269
return ((td.days * 24 * 60 * 60 * 1000)
270
+ (td.seconds * 1000)
271
+ (td.microseconds // 1000))
272
273
class Client(object):
189
274
"""A representation of a client host served by this server.
275
190
276
Attributes:
191
name: string; from the config file, used in log messages
277
_approved: bool(); 'None' if not yet approved/disapproved
278
approval_delay: datetime.timedelta(); Time to wait for approval
279
approval_duration: datetime.timedelta(); Duration of one approval
280
checker: subprocess.Popen(); a running checker process used
281
to see if the client lives.
282
'None' if no process is running.
283
checker_callback_tag: a gobject event source tag, or None
284
checker_command: string; External command which is run to check
285
if client lives. %() expansions are done at
286
runtime with vars(self) as dict, so that for
287
instance %(name)s can be used in the command.
288
checker_initiator_tag: a gobject event source tag, or None
289
created: datetime.datetime(); (UTC) object creation
290
current_checker_command: string; current running checker_command
291
disable_hook: If set, called by disable() as disable_hook(self)
292
disable_initiator_tag: a gobject event source tag, or None
293
enabled: bool()
192
294
fingerprint: string (40 or 32 hexadecimal digits); used to
193
295
uniquely identify the client
194
secret: bytestring; sent verbatim (over TLS) to client
195
296
host: string; available for use by the checker command
196
created: datetime.datetime(); (UTC) object creation
197
last_started: datetime.datetime(); (UTC)
198
started: bool()
297
interval: datetime.timedelta(); How often to start a new checker
298
last_approval_request: datetime.datetime(); (UTC) or None
199
299
last_checked_ok: datetime.datetime(); (UTC) or None
300
last_enabled: datetime.datetime(); (UTC)
301
name: string; from the config file, used in log messages and
302
D-Bus identifiers
303
secret: bytestring; sent verbatim (over TLS) to client
200
304
timeout: datetime.timedelta(); How long from last_checked_ok
201
until this client is invalid
202
interval: datetime.timedelta(); How often to start a new checker
203
stop_hook: If set, called by stop() as stop_hook(self)
204
checker: subprocess.Popen(); a running checker process used
205
to see if the client lives.
206
'None' if no process is running.
207
checker_initiator_tag: a gobject event source tag, or None
208
stop_initiator_tag: - '' -
209
checker_callback_tag: - '' -
210
checker_command: string; External command which is run to check if
211
client lives. %() expansions are done at
212
runtime with vars(self) as dict, so that for
213
instance %(name)s can be used in the command.
214
dbus_object_path: dbus.ObjectPath
215
Private attibutes:
216
_timeout: Real variable for 'timeout'
217
_interval: Real variable for 'interval'
218
_timeout_milliseconds: Used when calling gobject.timeout_add()
219
_interval_milliseconds: - '' -
305
until this client is disabled
306
extended_timeout: extra long timeout when password has been sent
307
runtime_expansions: Allowed attributes for runtime expansion.
308
expires: datetime.datetime(); time (UTC) when a client will be
309
disabled, or None
220
310
"""
221
def _set_timeout(self, timeout):
222
"Setter function for the 'timeout' attribute"
223
self._timeout = timeout
224
self._timeout_milliseconds = ((self.timeout.days
225
* 24 * 60 * 60 * 1000)
226
+ (self.timeout.seconds * 1000)
227
+ (self.timeout.microseconds
228
// 1000))
229
# Emit D-Bus signal
230
self.PropertyChanged(dbus.String(u"timeout"),
231
(dbus.UInt64(self._timeout_milliseconds,
232
variant_level=1)))
233
timeout = property(lambda self: self._timeout, _set_timeout)
234
del _set_timeout
235
236
def _set_interval(self, interval):
237
"Setter function for the 'interval' attribute"
238
self._interval = interval
239
self._interval_milliseconds = ((self.interval.days
240
* 24 * 60 * 60 * 1000)
241
+ (self.interval.seconds
242
* 1000)
243
+ (self.interval.microseconds
244
// 1000))
245
# Emit D-Bus signal
246
self.PropertyChanged(dbus.String(u"interval"),
247
(dbus.UInt64(self._interval_milliseconds,
248
variant_level=1)))
249
interval = property(lambda self: self._interval, _set_interval)
250
del _set_interval
251
252
def __init__(self, name = None, stop_hook=None, config=None):
311
312
runtime_expansions = ("approval_delay", "approval_duration",
313
"created", "enabled", "fingerprint",
314
"host", "interval", "last_checked_ok",
315
"last_enabled", "name", "timeout")
316
317
def timeout_milliseconds(self):
318
"Return the 'timeout' attribute in milliseconds"
319
return _timedelta_to_milliseconds(self.timeout)
320
321
def extended_timeout_milliseconds(self):
322
"Return the 'extended_timeout' attribute in milliseconds"
323
return _timedelta_to_milliseconds(self.extended_timeout)
324
325
def interval_milliseconds(self):
326
"Return the 'interval' attribute in milliseconds"
327
return _timedelta_to_milliseconds(self.interval)
328
329
def approval_delay_milliseconds(self):
330
return _timedelta_to_milliseconds(self.approval_delay)
331
332
def __init__(self, name = None, disable_hook=None, config=None):
253
333
"""Note: the 'checker' key in 'config' sets the
254
334
'checker_command' attribute and *not* the 'checker'
255
335
attribute."""
256
self.dbus_object_path = (dbus.ObjectPath
257
("/Mandos/clients/"
258
+ name.replace(".", "_")))
259
dbus.service.Object.__init__(self, bus,
260
self.dbus_object_path)
336
self.name = name
261
337
if config is None:
262
338
config = {}
263
self.name = name
264
logger.debug(u"Creating client %r", self.name)
339
logger.debug("Creating client %r", self.name)
265
340
# Uppercase and remove spaces from fingerprint for later
266
341
# comparison purposes with return value from the fingerprint()
267
342
# function
268
343
self.fingerprint = (config["fingerprint"].upper()
269
.replace(u" ", u""))
270
logger.debug(u" Fingerprint: %s", self.fingerprint)
344
.replace(" ", ""))
345
logger.debug(" Fingerprint: %s", self.fingerprint)
271
346
if "secret" in config:
272
self.secret = config["secret"].decode(u"base64")
347
self.secret = config["secret"].decode("base64")
273
348
elif "secfile" in config:
274
with closing(open(os.path.expanduser
275
(os.path.expandvars
276
(config["secfile"])))) as secfile:
349
with open(os.path.expanduser(os.path.expandvars
350
(config["secfile"])),
351
"rb") as secfile:
277
352
self.secret = secfile.read()
278
353
else:
279
raise TypeError(u"No secret or secfile for client %s"
354
raise TypeError("No secret or secfile for client %s"
280
355
% self.name)
281
356
self.host = config.get("host", "")
282
357
self.created = datetime.datetime.utcnow()
283
self.started = False
284
self.last_started = None
358
self.enabled = False
359
self.last_approval_request = None
360
self.last_enabled = None
285
361
self.last_checked_ok = None
286
362
self.timeout = string_to_delta(config["timeout"])
363
self.extended_timeout = string_to_delta(config["extended_timeout"])
287
364
self.interval = string_to_delta(config["interval"])
288
self.stop_hook = stop_hook
365
self.disable_hook = disable_hook
289
366
self.checker = None
290
367
self.checker_initiator_tag = None
291
self.stop_initiator_tag = None
368
self.disable_initiator_tag = None
369
self.expires = None
292
370
self.checker_callback_tag = None
293
371
self.checker_command = config["checker"]
372
self.current_checker_command = None
373
self.last_connect = None
374
self._approved = None
375
self.approved_by_default = config.get("approved_by_default",
376
True)
377
self.approvals_pending = 0
378
self.approval_delay = string_to_delta(
379
config["approval_delay"])
380
self.approval_duration = string_to_delta(
381
config["approval_duration"])
382
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
294
383
295
def start(self):
384
def send_changedstate(self):
385
self.changedstate.acquire()
386
self.changedstate.notify_all()
387
self.changedstate.release()
388
389
def enable(self):
296
390
"""Start this client's checker and timeout hooks"""
297
self.last_started = datetime.datetime.utcnow()
391
if getattr(self, "enabled", False):
392
# Already enabled
393
return
394
self.send_changedstate()
298
395
# Schedule a new checker to be started an 'interval' from now,
299
396
# and every interval from then on.
300
397
self.checker_initiator_tag = (gobject.timeout_add
301
(self._interval_milliseconds,
398
(self.interval_milliseconds(),
302
399
self.start_checker))
400
# Schedule a disable() when 'timeout' has passed
401
self.expires = datetime.datetime.utcnow() + self.timeout
402
self.disable_initiator_tag = (gobject.timeout_add
403
(self.timeout_milliseconds(),
404
self.disable))
405
self.enabled = True
406
self.last_enabled = datetime.datetime.utcnow()
303
407
# Also start a new checker *right now*.
304
408
self.start_checker()
305
# Schedule a stop() when 'timeout' has passed
306
self.stop_initiator_tag = (gobject.timeout_add
307
(self._timeout_milliseconds,
308
self.stop))
309
self.started = True
310
# Emit D-Bus signal
311
self.PropertyChanged(dbus.String(u"started"),
312
dbus.Boolean(True, variant_level=1))
313
self.PropertyChanged(dbus.String(u"last_started"),
314
(_datetime_to_dbus_struct
315
(self.last_started, variant_level=1)))
316
409
317
def stop(self):
318
"""Stop this client."""
319
if not getattr(self, "started", False):
410
def disable(self, quiet=True):
411
"""Disable this client."""
412
if not getattr(self, "enabled", False):
320
413
return False
321
logger.info(u"Stopping client %s", self.name)
322
if getattr(self, "stop_initiator_tag", False):
323
gobject.source_remove(self.stop_initiator_tag)
324
self.stop_initiator_tag = None
414
if not quiet:
415
self.send_changedstate()
416
if not quiet:
417
logger.info("Disabling client %s", self.name)
418
if getattr(self, "disable_initiator_tag", False):
419
gobject.source_remove(self.disable_initiator_tag)
420
self.disable_initiator_tag = None
421
self.expires = None
325
422
if getattr(self, "checker_initiator_tag", False):
326
423
gobject.source_remove(self.checker_initiator_tag)
327
424
self.checker_initiator_tag = None
328
425
self.stop_checker()
329
if self.stop_hook:
330
self.stop_hook(self)
331
self.started = False
332
# Emit D-Bus signal
333
self.PropertyChanged(dbus.String(u"started"),
334
dbus.Boolean(False, variant_level=1))
426
if self.disable_hook:
427
self.disable_hook(self)
428
self.enabled = False
335
429
# Do not run this again if called by a gobject.timeout_add
336
430
return False
337
431
338
432
def __del__(self):
339
self.stop_hook = None
340
self.stop()
433
self.disable_hook = None
434
self.disable()
341
435
342
436
def checker_callback(self, pid, condition, command):
343
437
"""The checker has completed, so take appropriate actions."""
344
438
self.checker_callback_tag = None
345
439
self.checker = None
346
# Emit D-Bus signal
347
self.PropertyChanged(dbus.String(u"checker_running"),
348
dbus.Boolean(False, variant_level=1))
349
if (os.WIFEXITED(condition)
350
and (os.WEXITSTATUS(condition) == 0)):
351
logger.info(u"Checker for %(name)s succeeded",
352
vars(self))
353
# Emit D-Bus signal
354
self.CheckerCompleted(dbus.Boolean(True),
355
dbus.UInt16(condition),
356
dbus.String(command))
357
self.bump_timeout()
358
elif not os.WIFEXITED(condition):
359
logger.warning(u"Checker for %(name)s crashed?",
440
if os.WIFEXITED(condition):
441
exitstatus = os.WEXITSTATUS(condition)
442
if exitstatus == 0:
443
logger.info("Checker for %(name)s succeeded",
444
vars(self))
445
self.checked_ok()
446
else:
447
logger.info("Checker for %(name)s failed",
448
vars(self))
449
else:
450
logger.warning("Checker for %(name)s crashed?",
360
451
vars(self))
361
# Emit D-Bus signal
362
self.CheckerCompleted(dbus.Boolean(False),
363
dbus.UInt16(condition),
364
dbus.String(command))
365
else:
366
logger.info(u"Checker for %(name)s failed",
367
vars(self))
368
# Emit D-Bus signal
369
self.CheckerCompleted(dbus.Boolean(False),
370
dbus.UInt16(condition),
371
dbus.String(command))
372
452
373
def bump_timeout(self):
453
def checked_ok(self, timeout=None):
374
454
"""Bump up the timeout for this client.
455
375
456
This should only be called when the client has been seen,
376
457
alive and well.
377
458
"""
459
if timeout is None:
460
timeout = self.timeout
378
461
self.last_checked_ok = datetime.datetime.utcnow()
379
gobject.source_remove(self.stop_initiator_tag)
380
self.stop_initiator_tag = (gobject.timeout_add
381
(self._timeout_milliseconds,
382
self.stop))
383
self.PropertyChanged(dbus.String(u"last_checked_ok"),
384
(_datetime_to_dbus_struct
385
(self.last_checked_ok,
386
variant_level=1)))
462
gobject.source_remove(self.disable_initiator_tag)
463
self.expires = datetime.datetime.utcnow() + timeout
464
self.disable_initiator_tag = (gobject.timeout_add
465
(_timedelta_to_milliseconds(timeout),
466
self.disable))
467
468
def need_approval(self):
469
self.last_approval_request = datetime.datetime.utcnow()
387
470
388
471
def start_checker(self):
389
472
"""Start a new checker subprocess if one is not running.
473
390
474
If a checker already exists, leave it running and do
391
475
nothing."""
392
476
# The reason for not killing a running checker is that if we
395
479
# client would inevitably timeout, since no checker would get
396
480
# a chance to run to completion. If we instead leave running
397
481
# checkers alone, the checker would have to take more time
398
# than 'timeout' for the client to be declared invalid, which
399
# is as it should be.
482
# than 'timeout' for the client to be disabled, which is as it
483
# should be.
484
485
# If a checker exists, make sure it is not a zombie
486
try:
487
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
488
except (AttributeError, OSError) as error:
489
if (isinstance(error, OSError)
490
and error.errno != errno.ECHILD):
491
raise error
492
else:
493
if pid:
494
logger.warning("Checker was a zombie")
495
gobject.source_remove(self.checker_callback_tag)
496
self.checker_callback(pid, status,
497
self.current_checker_command)
498
# Start a new checker if needed
400
499
if self.checker is None:
401
500
try:
402
501
# In case checker_command has exactly one % operator
403
502
command = self.checker_command % self.host
404
503
except TypeError:
405
504
# Escape attributes for the shell
406
escaped_attrs = dict((key, re.escape(str(val)))
407
for key, val in
408
vars(self).iteritems())
505
escaped_attrs = dict(
506
(attr,
507
re.escape(unicode(str(getattr(self, attr, "")),
508
errors=
509
'replace')))
510
for attr in
511
self.runtime_expansions)
512
409
513
try:
410
514
command = self.checker_command % escaped_attrs
411
except TypeError, error:
412
logger.error(u'Could not format string "%s":'
413
u' %s', self.checker_command, error)
515
except TypeError as error:
516
logger.error('Could not format string "%s":'
517
' %s', self.checker_command, error)
414
518
return True # Try again later
519
self.current_checker_command = command
415
520
try:
416
logger.info(u"Starting checker %r for %s",
521
logger.info("Starting checker %r for %s",
417
522
command, self.name)
418
523
# We don't need to redirect stdout and stderr, since
419
524
# in normal mode, that is already done by daemon(),
422
527
self.checker = subprocess.Popen(command,
423
528
close_fds=True,
424
529
shell=True, cwd="/")
425
# Emit D-Bus signal
426
self.CheckerStarted(command)
427
self.PropertyChanged(dbus.String("checker_running"),
428
dbus.Boolean(True, variant_level=1))
429
530
self.checker_callback_tag = (gobject.child_watch_add
430
531
(self.checker.pid,
431
532
self.checker_callback,
432
533
data=command))
433
except OSError, error:
434
logger.error(u"Failed to start subprocess: %s",
534
# The checker may have completed before the gobject
535
# watch was added. Check for this.
536
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
537
if pid:
538
gobject.source_remove(self.checker_callback_tag)
539
self.checker_callback(pid, status, command)
540
except OSError as error:
541
logger.error("Failed to start subprocess: %s",
435
542
error)
436
543
# Re-run this periodically if run by gobject.timeout_add
437
544
return True
443
550
self.checker_callback_tag = None
444
551
if getattr(self, "checker", None) is None:
445
552
return
446
logger.debug(u"Stopping checker for %(name)s", vars(self))
553
logger.debug("Stopping checker for %(name)s", vars(self))
447
554
try:
448
555
os.kill(self.checker.pid, signal.SIGTERM)
449
#os.sleep(0.5)
556
#time.sleep(0.5)
450
557
#if self.checker.poll() is None:
451
558
# os.kill(self.checker.pid, signal.SIGKILL)
452
except OSError, error:
559
except OSError as error:
453
560
if error.errno != errno.ESRCH: # No such process
454
561
raise
455
562
self.checker = None
456
self.PropertyChanged(dbus.String(u"checker_running"),
457
dbus.Boolean(False, variant_level=1))
458
459
def still_valid(self):
460
"""Has the timeout not yet passed for this client?"""
461
if not getattr(self, "started", False):
462
return False
463
now = datetime.datetime.utcnow()
464
if self.last_checked_ok is None:
465
return now < (self.created + self.timeout)
466
else:
467
return now < (self.last_checked_ok + self.timeout)
468
469
## D-Bus methods & signals
470
_interface = u"org.mandos_system.Mandos.Client"
471
472
# BumpTimeout - method
473
BumpTimeout = dbus.service.method(_interface)(bump_timeout)
474
BumpTimeout.__name__ = "BumpTimeout"
563
564
def dbus_service_property(dbus_interface, signature="v",
565
access="readwrite", byte_arrays=False):
566
"""Decorators for marking methods of a DBusObjectWithProperties to
567
become properties on the D-Bus.
568
569
The decorated method will be called with no arguments by "Get"
570
and with one argument by "Set".
571
572
The parameters, where they are supported, are the same as
573
dbus.service.method, except there is only "signature", since the
574
type from Get() and the type sent to Set() is the same.
575
"""
576
# Encoding deeply encoded byte arrays is not supported yet by the
577
# "Set" method, so we fail early here:
578
if byte_arrays and signature != "ay":
579
raise ValueError("Byte arrays not supported for non-'ay'"
580
" signature %r" % signature)
581
def decorator(func):
582
func._dbus_is_property = True
583
func._dbus_interface = dbus_interface
584
func._dbus_signature = signature
585
func._dbus_access = access
586
func._dbus_name = func.__name__
587
if func._dbus_name.endswith("_dbus_property"):
588
func._dbus_name = func._dbus_name[:-14]
589
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
590
return func
591
return decorator
592
593
594
class DBusPropertyException(dbus.exceptions.DBusException):
595
"""A base class for D-Bus property-related exceptions
596
"""
597
def __unicode__(self):
598
return unicode(str(self))
599
600
601
class DBusPropertyAccessException(DBusPropertyException):
602
"""A property's access permissions disallows an operation.
603
"""
604
pass
605
606
607
class DBusPropertyNotFound(DBusPropertyException):
608
"""An attempt was made to access a non-existing property.
609
"""
610
pass
611
612
613
class DBusObjectWithProperties(dbus.service.Object):
614
"""A D-Bus object with properties.
615
616
Classes inheriting from this can use the dbus_service_property
617
decorator to expose methods as D-Bus properties. It exposes the
618
standard Get(), Set(), and GetAll() methods on the D-Bus.
619
"""
620
621
@staticmethod
622
def _is_dbus_property(obj):
623
return getattr(obj, "_dbus_is_property", False)
624
625
def _get_all_dbus_properties(self):
626
"""Returns a generator of (name, attribute) pairs
627
"""
628
return ((prop._dbus_name, prop)
629
for name, prop in
630
inspect.getmembers(self, self._is_dbus_property))
631
632
def _get_dbus_property(self, interface_name, property_name):
633
"""Returns a bound method if one exists which is a D-Bus
634
property with the specified name and interface.
635
"""
636
for name in (property_name,
637
property_name + "_dbus_property"):
638
prop = getattr(self, name, None)
639
if (prop is None
640
or not self._is_dbus_property(prop)
641
or prop._dbus_name != property_name
642
or (interface_name and prop._dbus_interface
643
and interface_name != prop._dbus_interface)):
644
continue
645
return prop
646
# No such property
647
raise DBusPropertyNotFound(self.dbus_object_path + ":"
648
+ interface_name + "."
649
+ property_name)
650
651
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
652
out_signature="v")
653
def Get(self, interface_name, property_name):
654
"""Standard D-Bus property Get() method, see D-Bus standard.
655
"""
656
prop = self._get_dbus_property(interface_name, property_name)
657
if prop._dbus_access == "write":
658
raise DBusPropertyAccessException(property_name)
659
value = prop()
660
if not hasattr(value, "variant_level"):
661
return value
662
return type(value)(value, variant_level=value.variant_level+1)
663
664
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
665
def Set(self, interface_name, property_name, value):
666
"""Standard D-Bus property Set() method, see D-Bus standard.
667
"""
668
prop = self._get_dbus_property(interface_name, property_name)
669
if prop._dbus_access == "read":
670
raise DBusPropertyAccessException(property_name)
671
if prop._dbus_get_args_options["byte_arrays"]:
672
# The byte_arrays option is not supported yet on
673
# signatures other than "ay".
674
if prop._dbus_signature != "ay":
675
raise ValueError
676
value = dbus.ByteArray(''.join(unichr(byte)
677
for byte in value))
678
prop(value)
679
680
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
681
out_signature="a{sv}")
682
def GetAll(self, interface_name):
683
"""Standard D-Bus property GetAll() method, see D-Bus
684
standard.
685
686
Note: Will not include properties with access="write".
687
"""
688
all = {}
689
for name, prop in self._get_all_dbus_properties():
690
if (interface_name
691
and interface_name != prop._dbus_interface):
692
# Interface non-empty but did not match
693
continue
694
# Ignore write-only properties
695
if prop._dbus_access == "write":
696
continue
697
value = prop()
698
if not hasattr(value, "variant_level"):
699
all[name] = value
700
continue
701
all[name] = type(value)(value, variant_level=
702
value.variant_level+1)
703
return dbus.Dictionary(all, signature="sv")
704
705
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
706
out_signature="s",
707
path_keyword='object_path',
708
connection_keyword='connection')
709
def Introspect(self, object_path, connection):
710
"""Standard D-Bus method, overloaded to insert property tags.
711
"""
712
xmlstring = dbus.service.Object.Introspect(self, object_path,
713
connection)
714
try:
715
document = xml.dom.minidom.parseString(xmlstring)
716
def make_tag(document, name, prop):
717
e = document.createElement("property")
718
e.setAttribute("name", name)
719
e.setAttribute("type", prop._dbus_signature)
720
e.setAttribute("access", prop._dbus_access)
721
return e
722
for if_tag in document.getElementsByTagName("interface"):
723
for tag in (make_tag(document, name, prop)
724
for name, prop
725
in self._get_all_dbus_properties()
726
if prop._dbus_interface
727
== if_tag.getAttribute("name")):
728
if_tag.appendChild(tag)
729
# Add the names to the return values for the
730
# "org.freedesktop.DBus.Properties" methods
731
if (if_tag.getAttribute("name")
732
== "org.freedesktop.DBus.Properties"):
733
for cn in if_tag.getElementsByTagName("method"):
734
if cn.getAttribute("name") == "Get":
735
for arg in cn.getElementsByTagName("arg"):
736
if (arg.getAttribute("direction")
737
== "out"):
738
arg.setAttribute("name", "value")
739
elif cn.getAttribute("name") == "GetAll":
740
for arg in cn.getElementsByTagName("arg"):
741
if (arg.getAttribute("direction")
742
== "out"):
743
arg.setAttribute("name", "props")
744
xmlstring = document.toxml("utf-8")
745
document.unlink()
746
except (AttributeError, xml.dom.DOMException,
747
xml.parsers.expat.ExpatError) as error:
748
logger.error("Failed to override Introspection method",
749
error)
750
return xmlstring
751
752
753
def datetime_to_dbus (dt, variant_level=0):
754
"""Convert a UTC datetime.datetime() to a D-Bus type."""
755
if dt is None:
756
return dbus.String("", variant_level = variant_level)
757
return dbus.String(dt.isoformat(),
758
variant_level=variant_level)
759
760
class ClientDBus(Client, DBusObjectWithProperties):
761
"""A Client class using D-Bus
762
763
Attributes:
764
dbus_object_path: dbus.ObjectPath
765
bus: dbus.SystemBus()
766
"""
767
768
runtime_expansions = (Client.runtime_expansions
769
+ ("dbus_object_path",))
770
771
# dbus.service.Object doesn't use super(), so we can't either.
772
773
def __init__(self, bus = None, *args, **kwargs):
774
self._approvals_pending = 0
775
self.bus = bus
776
Client.__init__(self, *args, **kwargs)
777
# Only now, when this client is initialized, can it show up on
778
# the D-Bus
779
client_object_name = unicode(self.name).translate(
780
{ord("."): ord("_"),
781
ord("-"): ord("_")})
782
self.dbus_object_path = (dbus.ObjectPath
783
("/clients/" + client_object_name))
784
DBusObjectWithProperties.__init__(self, self.bus,
785
self.dbus_object_path)
786
787
def notifychangeproperty(transform_func,
788
dbus_name, type_func=lambda x: x,
789
variant_level=1):
790
""" Modify a variable so that its a property that announce its
791
changes to DBus.
792
transform_fun: Function that takes a value and transform it to
793
DBus type.
794
dbus_name: DBus name of the variable
795
type_func: Function that transform the value before sending it
796
to DBus
797
variant_level: DBus variant level. default: 1
798
"""
799
real_value = [None,]
800
def setter(self, value):
801
old_value = real_value[0]
802
real_value[0] = value
803
if hasattr(self, "dbus_object_path"):
804
if type_func(old_value) != type_func(real_value[0]):
805
dbus_value = transform_func(type_func(real_value[0]),
806
variant_level)
807
self.PropertyChanged(dbus.String(dbus_name),
808
dbus_value)
809
810
return property(lambda self: real_value[0], setter)
811
812
813
expires = notifychangeproperty(datetime_to_dbus, "Expires")
814
approvals_pending = notifychangeproperty(dbus.Boolean,
815
"ApprovalPending",
816
type_func = bool)
817
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
818
last_enabled = notifychangeproperty(datetime_to_dbus,
819
"LastEnabled")
820
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
821
type_func = lambda checker: checker is not None)
822
last_checked_ok = notifychangeproperty(datetime_to_dbus,
823
"LastCheckedOK")
824
last_approval_request = notifychangeproperty(datetime_to_dbus,
825
"LastApprovalRequest")
826
approved_by_default = notifychangeproperty(dbus.Boolean,
827
"ApprovedByDefault")
828
approval_delay = notifychangeproperty(dbus.UInt16, "ApprovalDelay",
829
type_func = _timedelta_to_milliseconds)
830
approval_duration = notifychangeproperty(dbus.UInt16, "ApprovalDuration",
831
type_func = _timedelta_to_milliseconds)
832
host = notifychangeproperty(dbus.String, "Host")
833
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
834
type_func = _timedelta_to_milliseconds)
835
extended_timeout = notifychangeproperty(dbus.UInt16, "ExtendedTimeout",
836
type_func = _timedelta_to_milliseconds)
837
interval = notifychangeproperty(dbus.UInt16, "Interval",
838
type_func = _timedelta_to_milliseconds)
839
checker_command = notifychangeproperty(dbus.String, "Checker")
840
841
del notifychangeproperty
842
843
def __del__(self, *args, **kwargs):
844
try:
845
self.remove_from_connection()
846
except LookupError:
847
pass
848
if hasattr(DBusObjectWithProperties, "__del__"):
849
DBusObjectWithProperties.__del__(self, *args, **kwargs)
850
Client.__del__(self, *args, **kwargs)
851
852
def checker_callback(self, pid, condition, command,
853
*args, **kwargs):
854
self.checker_callback_tag = None
855
self.checker = None
856
if os.WIFEXITED(condition):
857
exitstatus = os.WEXITSTATUS(condition)
858
# Emit D-Bus signal
859
self.CheckerCompleted(dbus.Int16(exitstatus),
860
dbus.Int64(condition),
861
dbus.String(command))
862
else:
863
# Emit D-Bus signal
864
self.CheckerCompleted(dbus.Int16(-1),
865
dbus.Int64(condition),
866
dbus.String(command))
867
868
return Client.checker_callback(self, pid, condition, command,
869
*args, **kwargs)
870
871
def start_checker(self, *args, **kwargs):
872
old_checker = self.checker
873
if self.checker is not None:
874
old_checker_pid = self.checker.pid
875
else:
876
old_checker_pid = None
877
r = Client.start_checker(self, *args, **kwargs)
878
# Only if new checker process was started
879
if (self.checker is not None
880
and old_checker_pid != self.checker.pid):
881
# Emit D-Bus signal
882
self.CheckerStarted(self.current_checker_command)
883
return r
884
885
def _reset_approved(self):
886
self._approved = None
887
return False
888
889
def approve(self, value=True):
890
self.send_changedstate()
891
self._approved = value
892
gobject.timeout_add(_timedelta_to_milliseconds
893
(self.approval_duration),
894
self._reset_approved)
895
896
897
## D-Bus methods, signals & properties
898
_interface = "se.bsnet.fukt.Mandos.Client"
899
900
## Signals
475
901
476
902
# CheckerCompleted - signal
477
@dbus.service.signal(_interface, signature="bqs")
478
def CheckerCompleted(self, success, condition, command):
903
@dbus.service.signal(_interface, signature="nxs")
904
def CheckerCompleted(self, exitcode, waitstatus, command):
479
905
"D-Bus signal"
480
906
pass
481
907
485
911
"D-Bus signal"
486
912
pass
487
913
488
# GetAllProperties - method
489
@dbus.service.method(_interface, out_signature="a{sv}")
490
def GetAllProperties(self):
491
"D-Bus method"
492
return dbus.Dictionary({
493
dbus.String("name"):
494
dbus.String(self.name, variant_level=1),
495
dbus.String("fingerprint"):
496
dbus.String(self.fingerprint, variant_level=1),
497
dbus.String("host"):
498
dbus.String(self.host, variant_level=1),
499
dbus.String("created"):
500
_datetime_to_dbus_struct(self.created,
501
variant_level=1),
502
dbus.String("last_started"):
503
(_datetime_to_dbus_struct(self.last_started,
504
variant_level=1)
505
if self.last_started is not None
506
else dbus.Boolean(False, variant_level=1)),
507
dbus.String("started"):
508
dbus.Boolean(self.started, variant_level=1),
509
dbus.String("last_checked_ok"):
510
(_datetime_to_dbus_struct(self.last_checked_ok,
511
variant_level=1)
512
if self.last_checked_ok is not None
513
else dbus.Boolean (False, variant_level=1)),
514
dbus.String("timeout"):
515
dbus.UInt64(self._timeout_milliseconds,
516
variant_level=1),
517
dbus.String("interval"):
518
dbus.UInt64(self._interval_milliseconds,
519
variant_level=1),
520
dbus.String("checker"):
521
dbus.String(self.checker_command,
522
variant_level=1),
523
dbus.String("checker_running"):
524
dbus.Boolean(self.checker is not None,
525
variant_level=1),
526
}, signature="sv")
527
528
# IsStillValid - method
529
IsStillValid = (dbus.service.method(_interface, out_signature="b")
530
(still_valid))
531
IsStillValid.__name__ = "IsStillValid"
532
533
914
# PropertyChanged - signal
534
915
@dbus.service.signal(_interface, signature="sv")
535
916
def PropertyChanged(self, property, value):
536
917
"D-Bus signal"
537
918
pass
538
919
539
# SetChecker - method
540
@dbus.service.method(_interface, in_signature="s")
541
def SetChecker(self, checker):
542
"D-Bus setter method"
543
self.checker_command = checker
544
545
# SetHost - method
546
@dbus.service.method(_interface, in_signature="s")
547
def SetHost(self, host):
548
"D-Bus setter method"
549
self.host = host
550
551
# SetInterval - method
552
@dbus.service.method(_interface, in_signature="t")
553
def SetInterval(self, milliseconds):
554
self.interval = datetime.timdeelta(0, 0, 0, milliseconds)
555
556
# SetSecret - method
557
@dbus.service.method(_interface, in_signature="ay",
558
byte_arrays=True)
559
def SetSecret(self, secret):
560
"D-Bus setter method"
561
self.secret = str(secret)
562
563
# SetTimeout - method
564
@dbus.service.method(_interface, in_signature="t")
565
def SetTimeout(self, milliseconds):
566
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
567
568
# Start - method
569
Start = dbus.service.method(_interface)(start)
570
Start.__name__ = "Start"
920
# GotSecret - signal
921
@dbus.service.signal(_interface)
922
def GotSecret(self):
923
"""D-Bus signal
924
Is sent after a successful transfer of secret from the Mandos
925
server to mandos-client
926
"""
927
pass
928
929
# Rejected - signal
930
@dbus.service.signal(_interface, signature="s")
931
def Rejected(self, reason):
932
"D-Bus signal"
933
pass
934
935
# NeedApproval - signal
936
@dbus.service.signal(_interface, signature="tb")
937
def NeedApproval(self, timeout, default):
938
"D-Bus signal"
939
return self.need_approval()
940
941
## Methods
942
943
# Approve - method
944
@dbus.service.method(_interface, in_signature="b")
945
def Approve(self, value):
946
self.approve(value)
947
948
# CheckedOK - method
949
@dbus.service.method(_interface)
950
def CheckedOK(self):
951
self.checked_ok()
952
953
# Enable - method
954
@dbus.service.method(_interface)
955
def Enable(self):
956
"D-Bus method"
957
self.enable()
571
958
572
959
# StartChecker - method
573
960
@dbus.service.method(_interface)
575
962
"D-Bus method"
576
963
self.start_checker()
577
964
578
# Stop - method
965
# Disable - method
579
966
@dbus.service.method(_interface)
580
def Stop(self):
967
def Disable(self):
581
968
"D-Bus method"
582
self.stop()
969
self.disable()
583
970
584
971
# StopChecker - method
585
StopChecker = dbus.service.method(_interface)(stop_checker)
586
StopChecker.__name__ = "StopChecker"
972
@dbus.service.method(_interface)
973
def StopChecker(self):
974
self.stop_checker()
975
976
## Properties
977
978
# ApprovalPending - property
979
@dbus_service_property(_interface, signature="b", access="read")
980
def ApprovalPending_dbus_property(self):
981
return dbus.Boolean(bool(self.approvals_pending))
982
983
# ApprovedByDefault - property
984
@dbus_service_property(_interface, signature="b",
985
access="readwrite")
986
def ApprovedByDefault_dbus_property(self, value=None):
987
if value is None: # get
988
return dbus.Boolean(self.approved_by_default)
989
self.approved_by_default = bool(value)
990
991
# ApprovalDelay - property
992
@dbus_service_property(_interface, signature="t",
993
access="readwrite")
994
def ApprovalDelay_dbus_property(self, value=None):
995
if value is None: # get
996
return dbus.UInt64(self.approval_delay_milliseconds())
997
self.approval_delay = datetime.timedelta(0, 0, 0, value)
998
999
# ApprovalDuration - property
1000
@dbus_service_property(_interface, signature="t",
1001
access="readwrite")
1002
def ApprovalDuration_dbus_property(self, value=None):
1003
if value is None: # get
1004
return dbus.UInt64(_timedelta_to_milliseconds(
1005
self.approval_duration))
1006
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1007
1008
# Name - property
1009
@dbus_service_property(_interface, signature="s", access="read")
1010
def Name_dbus_property(self):
1011
return dbus.String(self.name)
1012
1013
# Fingerprint - property
1014
@dbus_service_property(_interface, signature="s", access="read")
1015
def Fingerprint_dbus_property(self):
1016
return dbus.String(self.fingerprint)
1017
1018
# Host - property
1019
@dbus_service_property(_interface, signature="s",
1020
access="readwrite")
1021
def Host_dbus_property(self, value=None):
1022
if value is None: # get
1023
return dbus.String(self.host)
1024
self.host = value
1025
1026
# Created - property
1027
@dbus_service_property(_interface, signature="s", access="read")
1028
def Created_dbus_property(self):
1029
return dbus.String(datetime_to_dbus(self.created))
1030
1031
# LastEnabled - property
1032
@dbus_service_property(_interface, signature="s", access="read")
1033
def LastEnabled_dbus_property(self):
1034
return datetime_to_dbus(self.last_enabled)
1035
1036
# Enabled - property
1037
@dbus_service_property(_interface, signature="b",
1038
access="readwrite")
1039
def Enabled_dbus_property(self, value=None):
1040
if value is None: # get
1041
return dbus.Boolean(self.enabled)
1042
if value:
1043
self.enable()
1044
else:
1045
self.disable()
1046
1047
# LastCheckedOK - property
1048
@dbus_service_property(_interface, signature="s",
1049
access="readwrite")
1050
def LastCheckedOK_dbus_property(self, value=None):
1051
if value is not None:
1052
self.checked_ok()
1053
return
1054
return datetime_to_dbus(self.last_checked_ok)
1055
1056
# Expires - property
1057
@dbus_service_property(_interface, signature="s", access="read")
1058
def Expires_dbus_property(self):
1059
return datetime_to_dbus(self.expires)
1060
1061
# LastApprovalRequest - property
1062
@dbus_service_property(_interface, signature="s", access="read")
1063
def LastApprovalRequest_dbus_property(self):
1064
return datetime_to_dbus(self.last_approval_request)
1065
1066
# Timeout - property
1067
@dbus_service_property(_interface, signature="t",
1068
access="readwrite")
1069
def Timeout_dbus_property(self, value=None):
1070
if value is None: # get
1071
return dbus.UInt64(self.timeout_milliseconds())
1072
self.timeout = datetime.timedelta(0, 0, 0, value)
1073
if getattr(self, "disable_initiator_tag", None) is None:
1074
return
1075
# Reschedule timeout
1076
gobject.source_remove(self.disable_initiator_tag)
1077
self.disable_initiator_tag = None
1078
self.expires = None
1079
time_to_die = (self.
1080
_timedelta_to_milliseconds((self
1081
.last_checked_ok
1082
+ self.timeout)
1083
- datetime.datetime
1084
.utcnow()))
1085
if time_to_die <= 0:
1086
# The timeout has passed
1087
self.disable()
1088
else:
1089
self.expires = (datetime.datetime.utcnow()
1090
+ datetime.timedelta(milliseconds = time_to_die))
1091
self.disable_initiator_tag = (gobject.timeout_add
1092
(time_to_die, self.disable))
1093
1094
# ExtendedTimeout - property
1095
@dbus_service_property(_interface, signature="t",
1096
access="readwrite")
1097
def ExtendedTimeout_dbus_property(self, value=None):
1098
if value is None: # get
1099
return dbus.UInt64(self.extended_timeout_milliseconds())
1100
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1101
1102
# Interval - property
1103
@dbus_service_property(_interface, signature="t",
1104
access="readwrite")
1105
def Interval_dbus_property(self, value=None):
1106
if value is None: # get
1107
return dbus.UInt64(self.interval_milliseconds())
1108
self.interval = datetime.timedelta(0, 0, 0, value)
1109
if getattr(self, "checker_initiator_tag", None) is None:
1110
return
1111
# Reschedule checker run
1112
gobject.source_remove(self.checker_initiator_tag)
1113
self.checker_initiator_tag = (gobject.timeout_add
1114
(value, self.start_checker))
1115
self.start_checker() # Start one now, too
1116
1117
# Checker - property
1118
@dbus_service_property(_interface, signature="s",
1119
access="readwrite")
1120
def Checker_dbus_property(self, value=None):
1121
if value is None: # get
1122
return dbus.String(self.checker_command)
1123
self.checker_command = value
1124
1125
# CheckerRunning - property
1126
@dbus_service_property(_interface, signature="b",
1127
access="readwrite")
1128
def CheckerRunning_dbus_property(self, value=None):
1129
if value is None: # get
1130
return dbus.Boolean(self.checker is not None)
1131
if value:
1132
self.start_checker()
1133
else:
1134
self.stop_checker()
1135
1136
# ObjectPath - property
1137
@dbus_service_property(_interface, signature="o", access="read")
1138
def ObjectPath_dbus_property(self):
1139
return self.dbus_object_path # is already a dbus.ObjectPath
1140
1141
# Secret = property
1142
@dbus_service_property(_interface, signature="ay",
1143
access="write", byte_arrays=True)
1144
def Secret_dbus_property(self, value):
1145
self.secret = str(value)
587
1146
588
1147
del _interface
589
1148
590
1149
591
def peer_certificate(session):
592
"Return the peer's OpenPGP certificate as a bytestring"
593
# If not an OpenPGP certificate...
594
if (gnutls.library.functions
595
.gnutls_certificate_type_get(session._c_object)
596
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
597
# ...do the normal thing
598
return session.peer_certificate
599
list_size = ctypes.c_uint()
600
cert_list = (gnutls.library.functions
601
.gnutls_certificate_get_peers
602
(session._c_object, ctypes.byref(list_size)))
603
if list_size.value == 0:
604
return None
605
cert = cert_list[0]
606
return ctypes.string_at(cert.data, cert.size)
607
608
609
def fingerprint(openpgp):
610
"Convert an OpenPGP bytestring to a hexdigit fingerprint string"
611
# New GnuTLS "datum" with the OpenPGP public key
612
datum = (gnutls.library.types
613
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
614
ctypes.POINTER
615
(ctypes.c_ubyte)),
616
ctypes.c_uint(len(openpgp))))
617
# New empty GnuTLS certificate
618
crt = gnutls.library.types.gnutls_openpgp_crt_t()
619
(gnutls.library.functions
620
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
621
# Import the OpenPGP public key into the certificate
622
(gnutls.library.functions
623
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
624
gnutls.library.constants
625
.GNUTLS_OPENPGP_FMT_RAW))
626
# Verify the self signature in the key
627
crtverify = ctypes.c_uint()
628
(gnutls.library.functions
629
.gnutls_openpgp_crt_verify_self(crt, 0, ctypes.byref(crtverify)))
630
if crtverify.value != 0:
631
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
632
raise gnutls.errors.CertificateSecurityError("Verify failed")
633
# New buffer for the fingerprint
634
buf = ctypes.create_string_buffer(20)
635
buf_len = ctypes.c_size_t()
636
# Get the fingerprint from the certificate into the buffer
637
(gnutls.library.functions
638
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
639
ctypes.byref(buf_len)))
640
# Deinit the certificate
641
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
642
# Convert the buffer to a Python bytestring
643
fpr = ctypes.string_at(buf, buf_len.value)
644
# Convert the bytestring to hexadecimal notation
645
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
646
return hex_fpr
647
648
649
class TCP_handler(SocketServer.BaseRequestHandler, object):
650
"""A TCP request handler class.
651
Instantiated by IPv6_TCPServer for each request to handle it.
1150
class ProxyClient(object):
1151
def __init__(self, child_pipe, fpr, address):
1152
self._pipe = child_pipe
1153
self._pipe.send(('init', fpr, address))
1154
if not self._pipe.recv():
1155
raise KeyError()
1156
1157
def __getattribute__(self, name):
1158
if(name == '_pipe'):
1159
return super(ProxyClient, self).__getattribute__(name)
1160
self._pipe.send(('getattr', name))
1161
data = self._pipe.recv()
1162
if data[0] == 'data':
1163
return data[1]
1164
if data[0] == 'function':
1165
def func(*args, **kwargs):
1166
self._pipe.send(('funcall', name, args, kwargs))
1167
return self._pipe.recv()[1]
1168
return func
1169
1170
def __setattr__(self, name, value):
1171
if(name == '_pipe'):
1172
return super(ProxyClient, self).__setattr__(name, value)
1173
self._pipe.send(('setattr', name, value))
1174
1175
1176
class ClientHandler(socketserver.BaseRequestHandler, object):
1177
"""A class to handle client connections.
1178
1179
Instantiated once for each connection to handle it.
652
1180
Note: This will run in its own forked process."""
653
1181
654
1182
def handle(self):
655
logger.info(u"TCP connection from: %s",
656
unicode(self.client_address))
657
session = (gnutls.connection
658
.ClientSession(self.request,
659
gnutls.connection
660
.X509Credentials()))
661
662
line = self.request.makefile().readline()
663
logger.debug(u"Protocol version: %r", line)
664
try:
665
if int(line.strip().split()[0]) > 1:
666
raise RuntimeError
667
except (ValueError, IndexError, RuntimeError), error:
668
logger.error(u"Unknown protocol version: %s", error)
669
return
670
671
# Note: gnutls.connection.X509Credentials is really a generic
672
# GnuTLS certificate credentials object so long as no X.509
673
# keys are added to it. Therefore, we can use it here despite
674
# using OpenPGP certificates.
675
676
#priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
677
# "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
678
# "+DHE-DSS"))
679
# Use a fallback default, since this MUST be set.
680
priority = self.server.settings.get("priority", "NORMAL")
681
(gnutls.library.functions
682
.gnutls_priority_set_direct(session._c_object,
683
priority, None))
684
685
try:
686
session.handshake()
687
except gnutls.errors.GNUTLSError, error:
688
logger.warning(u"Handshake failed: %s", error)
689
# Do not run session.bye() here: the session is not
690
# established. Just abandon the request.
691
return
692
try:
693
fpr = fingerprint(peer_certificate(session))
694
except (TypeError, gnutls.errors.GNUTLSError), error:
695
logger.warning(u"Bad certificate: %s", error)
696
session.bye()
697
return
698
logger.debug(u"Fingerprint: %s", fpr)
699
for c in self.server.clients:
700
if c.fingerprint == fpr:
701
client = c
702
break
703
else:
704
logger.warning(u"Client not found for fingerprint: %s",
705
fpr)
706
session.bye()
707
return
708
# Have to check if client.still_valid(), since it is possible
709
# that the client timed out while establishing the GnuTLS
710
# session.
711
if not client.still_valid():
712
logger.warning(u"Client %(name)s is invalid",
713
vars(client))
714
session.bye()
715
return
716
## This won't work here, since we're in a fork.
717
# client.bump_timeout()
718
sent_size = 0
719
while sent_size < len(client.secret):
720
sent = session.send(client.secret[sent_size:])
721
logger.debug(u"Sent: %d, remaining: %d",
722
sent, len(client.secret)
723
- (sent_size + sent))
724
sent_size += sent
725
session.bye()
726
727
728
class IPv6_TCPServer(SocketServer.ForkingMixIn,
729
SocketServer.TCPServer, object):
730
"""IPv6 TCP server. Accepts 'None' as address and/or port.
1183
with contextlib.closing(self.server.child_pipe) as child_pipe:
1184
logger.info("TCP connection from: %s",
1185
unicode(self.client_address))
1186
logger.debug("Pipe FD: %d",
1187
self.server.child_pipe.fileno())
1188
1189
session = (gnutls.connection
1190
.ClientSession(self.request,
1191
gnutls.connection
1192
.X509Credentials()))
1193
1194
# Note: gnutls.connection.X509Credentials is really a
1195
# generic GnuTLS certificate credentials object so long as
1196
# no X.509 keys are added to it. Therefore, we can use it
1197
# here despite using OpenPGP certificates.
1198
1199
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1200
# "+AES-256-CBC", "+SHA1",
1201
# "+COMP-NULL", "+CTYPE-OPENPGP",
1202
# "+DHE-DSS"))
1203
# Use a fallback default, since this MUST be set.
1204
priority = self.server.gnutls_priority
1205
if priority is None:
1206
priority = "NORMAL"
1207
(gnutls.library.functions
1208
.gnutls_priority_set_direct(session._c_object,
1209
priority, None))
1210
1211
# Start communication using the Mandos protocol
1212
# Get protocol number
1213
line = self.request.makefile().readline()
1214
logger.debug("Protocol version: %r", line)
1215
try:
1216
if int(line.strip().split()[0]) > 1:
1217
raise RuntimeError
1218
except (ValueError, IndexError, RuntimeError) as error:
1219
logger.error("Unknown protocol version: %s", error)
1220
return
1221
1222
# Start GnuTLS connection
1223
try:
1224
session.handshake()
1225
except gnutls.errors.GNUTLSError as error:
1226
logger.warning("Handshake failed: %s", error)
1227
# Do not run session.bye() here: the session is not
1228
# established. Just abandon the request.
1229
return
1230
logger.debug("Handshake succeeded")
1231
1232
approval_required = False
1233
try:
1234
try:
1235
fpr = self.fingerprint(self.peer_certificate
1236
(session))
1237
except (TypeError,
1238
gnutls.errors.GNUTLSError) as error:
1239
logger.warning("Bad certificate: %s", error)
1240
return
1241
logger.debug("Fingerprint: %s", fpr)
1242
1243
try:
1244
client = ProxyClient(child_pipe, fpr,
1245
self.client_address)
1246
except KeyError:
1247
return
1248
1249
if client.approval_delay:
1250
delay = client.approval_delay
1251
client.approvals_pending += 1
1252
approval_required = True
1253
1254
while True:
1255
if not client.enabled:
1256
logger.info("Client %s is disabled",
1257
client.name)
1258
if self.server.use_dbus:
1259
# Emit D-Bus signal
1260
client.Rejected("Disabled")
1261
return
1262
1263
if client._approved or not client.approval_delay:
1264
#We are approved or approval is disabled
1265
break
1266
elif client._approved is None:
1267
logger.info("Client %s needs approval",
1268
client.name)
1269
if self.server.use_dbus:
1270
# Emit D-Bus signal
1271
client.NeedApproval(
1272
client.approval_delay_milliseconds(),
1273
client.approved_by_default)
1274
else:
1275
logger.warning("Client %s was not approved",
1276
client.name)
1277
if self.server.use_dbus:
1278
# Emit D-Bus signal
1279
client.Rejected("Denied")
1280
return
1281
1282
#wait until timeout or approved
1283
#x = float(client._timedelta_to_milliseconds(delay))
1284
time = datetime.datetime.now()
1285
client.changedstate.acquire()
1286
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1287
client.changedstate.release()
1288
time2 = datetime.datetime.now()
1289
if (time2 - time) >= delay:
1290
if not client.approved_by_default:
1291
logger.warning("Client %s timed out while"
1292
" waiting for approval",
1293
client.name)
1294
if self.server.use_dbus:
1295
# Emit D-Bus signal
1296
client.Rejected("Approval timed out")
1297
return
1298
else:
1299
break
1300
else:
1301
delay -= time2 - time
1302
1303
sent_size = 0
1304
while sent_size < len(client.secret):
1305
try:
1306
sent = session.send(client.secret[sent_size:])
1307
except gnutls.errors.GNUTLSError as error:
1308
logger.warning("gnutls send failed")
1309
return
1310
logger.debug("Sent: %d, remaining: %d",
1311
sent, len(client.secret)
1312
- (sent_size + sent))
1313
sent_size += sent
1314
1315
logger.info("Sending secret to %s", client.name)
1316
# bump the timeout as if seen
1317
client.checked_ok(client.extended_timeout)
1318
if self.server.use_dbus:
1319
# Emit D-Bus signal
1320
client.GotSecret()
1321
1322
finally:
1323
if approval_required:
1324
client.approvals_pending -= 1
1325
try:
1326
session.bye()
1327
except gnutls.errors.GNUTLSError as error:
1328
logger.warning("GnuTLS bye failed")
1329
1330
@staticmethod
1331
def peer_certificate(session):
1332
"Return the peer's OpenPGP certificate as a bytestring"
1333
# If not an OpenPGP certificate...
1334
if (gnutls.library.functions
1335
.gnutls_certificate_type_get(session._c_object)
1336
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1337
# ...do the normal thing
1338
return session.peer_certificate
1339
list_size = ctypes.c_uint(1)
1340
cert_list = (gnutls.library.functions
1341
.gnutls_certificate_get_peers
1342
(session._c_object, ctypes.byref(list_size)))
1343
if not bool(cert_list) and list_size.value != 0:
1344
raise gnutls.errors.GNUTLSError("error getting peer"
1345
" certificate")
1346
if list_size.value == 0:
1347
return None
1348
cert = cert_list[0]
1349
return ctypes.string_at(cert.data, cert.size)
1350
1351
@staticmethod
1352
def fingerprint(openpgp):
1353
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1354
# New GnuTLS "datum" with the OpenPGP public key
1355
datum = (gnutls.library.types
1356
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1357
ctypes.POINTER
1358
(ctypes.c_ubyte)),
1359
ctypes.c_uint(len(openpgp))))
1360
# New empty GnuTLS certificate
1361
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1362
(gnutls.library.functions
1363
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1364
# Import the OpenPGP public key into the certificate
1365
(gnutls.library.functions
1366
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1367
gnutls.library.constants
1368
.GNUTLS_OPENPGP_FMT_RAW))
1369
# Verify the self signature in the key
1370
crtverify = ctypes.c_uint()
1371
(gnutls.library.functions
1372
.gnutls_openpgp_crt_verify_self(crt, 0,
1373
ctypes.byref(crtverify)))
1374
if crtverify.value != 0:
1375
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1376
raise (gnutls.errors.CertificateSecurityError
1377
("Verify failed"))
1378
# New buffer for the fingerprint
1379
buf = ctypes.create_string_buffer(20)
1380
buf_len = ctypes.c_size_t()
1381
# Get the fingerprint from the certificate into the buffer
1382
(gnutls.library.functions
1383
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1384
ctypes.byref(buf_len)))
1385
# Deinit the certificate
1386
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1387
# Convert the buffer to a Python bytestring
1388
fpr = ctypes.string_at(buf, buf_len.value)
1389
# Convert the bytestring to hexadecimal notation
1390
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1391
return hex_fpr
1392
1393
1394
class MultiprocessingMixIn(object):
1395
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1396
def sub_process_main(self, request, address):
1397
try:
1398
self.finish_request(request, address)
1399
except:
1400
self.handle_error(request, address)
1401
self.close_request(request)
1402
1403
def process_request(self, request, address):
1404
"""Start a new process to process the request."""
1405
multiprocessing.Process(target = self.sub_process_main,
1406
args = (request, address)).start()
1407
1408
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1409
""" adds a pipe to the MixIn """
1410
def process_request(self, request, client_address):
1411
"""Overrides and wraps the original process_request().
1412
1413
This function creates a new pipe in self.pipe
1414
"""
1415
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1416
1417
super(MultiprocessingMixInWithPipe,
1418
self).process_request(request, client_address)
1419
self.child_pipe.close()
1420
self.add_pipe(parent_pipe)
1421
1422
def add_pipe(self, parent_pipe):
1423
"""Dummy function; override as necessary"""
1424
raise NotImplementedError
1425
1426
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1427
socketserver.TCPServer, object):
1428
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1429
731
1430
Attributes:
732
settings: Server settings
733
clients: Set() of Client objects
734
1431
enabled: Boolean; whether this server is activated yet
1432
interface: None or a network interface name (string)
1433
use_ipv6: Boolean; to use IPv6 or not
735
1434
"""
736
address_family = socket.AF_INET6
737
def __init__(self, *args, **kwargs):
738
if "settings" in kwargs:
739
self.settings = kwargs["settings"]
740
del kwargs["settings"]
741
if "clients" in kwargs:
742
self.clients = kwargs["clients"]
743
del kwargs["clients"]
744
self.enabled = False
745
super(IPv6_TCPServer, self).__init__(*args, **kwargs)
1435
def __init__(self, server_address, RequestHandlerClass,
1436
interface=None, use_ipv6=True):
1437
self.interface = interface
1438
if use_ipv6:
1439
self.address_family = socket.AF_INET6
1440
socketserver.TCPServer.__init__(self, server_address,
1441
RequestHandlerClass)
746
1442
def server_bind(self):
747
1443
"""This overrides the normal server_bind() function
748
1444
to bind to an interface if one was specified, and also NOT to
749
1445
bind to an address or port if they were not specified."""
750
if self.settings["interface"]:
751
# 25 is from /usr/include/asm-i486/socket.h
752
SO_BINDTODEVICE = getattr(socket, "SO_BINDTODEVICE", 25)
753
try:
754
self.socket.setsockopt(socket.SOL_SOCKET,
755
SO_BINDTODEVICE,
756
self.settings["interface"])
757
except socket.error, error:
758
if error[0] == errno.EPERM:
759
logger.error(u"No permission to"
760
u" bind to interface %s",
761
self.settings["interface"])
762
else:
763
raise error
1446
if self.interface is not None:
1447
if SO_BINDTODEVICE is None:
1448
logger.error("SO_BINDTODEVICE does not exist;"
1449
" cannot bind to interface %s",
1450
self.interface)
1451
else:
1452
try:
1453
self.socket.setsockopt(socket.SOL_SOCKET,
1454
SO_BINDTODEVICE,
1455
str(self.interface
1456
+ '\0'))
1457
except socket.error as error:
1458
if error[0] == errno.EPERM:
1459
logger.error("No permission to"
1460
" bind to interface %s",
1461
self.interface)
1462
elif error[0] == errno.ENOPROTOOPT:
1463
logger.error("SO_BINDTODEVICE not available;"
1464
" cannot bind to interface %s",
1465
self.interface)
1466
else:
1467
raise
764
1468
# Only bind(2) the socket if we really need to.
765
1469
if self.server_address[0] or self.server_address[1]:
766
1470
if not self.server_address[0]:
767
in6addr_any = "::"
768
self.server_address = (in6addr_any,
1471
if self.address_family == socket.AF_INET6:
1472
any_address = "::" # in6addr_any
1473
else:
1474
any_address = socket.INADDR_ANY
1475
self.server_address = (any_address,
769
1476
self.server_address[1])
770
1477
elif not self.server_address[1]:
771
1478
self.server_address = (self.server_address[0],
772
1479
0)
773
# if self.settings["interface"]:
1480
# if self.interface:
774
1481
# self.server_address = (self.server_address[0],
775
1482
# 0, # port
776
1483
# 0, # flowinfo
777
1484
# if_nametoindex
778
# (self.settings
779
# ["interface"]))
780
return super(IPv6_TCPServer, self).server_bind()
1485
# (self.interface))
1486
return socketserver.TCPServer.server_bind(self)
1487
1488
1489
class MandosServer(IPv6_TCPServer):
1490
"""Mandos server.
1491
1492
Attributes:
1493
clients: set of Client objects
1494
gnutls_priority GnuTLS priority string
1495
use_dbus: Boolean; to emit D-Bus signals or not
1496
1497
Assumes a gobject.MainLoop event loop.
1498
"""
1499
def __init__(self, server_address, RequestHandlerClass,
1500
interface=None, use_ipv6=True, clients=None,
1501
gnutls_priority=None, use_dbus=True):
1502
self.enabled = False
1503
self.clients = clients
1504
if self.clients is None:
1505
self.clients = set()
1506
self.use_dbus = use_dbus
1507
self.gnutls_priority = gnutls_priority
1508
IPv6_TCPServer.__init__(self, server_address,
1509
RequestHandlerClass,
1510
interface = interface,
1511
use_ipv6 = use_ipv6)
781
1512
def server_activate(self):
782
1513
if self.enabled:
783
return super(IPv6_TCPServer, self).server_activate()
1514
return socketserver.TCPServer.server_activate(self)
784
1515
def enable(self):
785
1516
self.enabled = True
1517
def add_pipe(self, parent_pipe):
1518
# Call "handle_ipc" for both data and EOF events
1519
gobject.io_add_watch(parent_pipe.fileno(),
1520
gobject.IO_IN | gobject.IO_HUP,
1521
functools.partial(self.handle_ipc,
1522
parent_pipe = parent_pipe))
1523
1524
def handle_ipc(self, source, condition, parent_pipe=None,
1525
client_object=None):
1526
condition_names = {
1527
gobject.IO_IN: "IN", # There is data to read.
1528
gobject.IO_OUT: "OUT", # Data can be written (without
1529
# blocking).
1530
gobject.IO_PRI: "PRI", # There is urgent data to read.
1531
gobject.IO_ERR: "ERR", # Error condition.
1532
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1533
# broken, usually for pipes and
1534
# sockets).
1535
}
1536
conditions_string = ' | '.join(name
1537
for cond, name in
1538
condition_names.iteritems()
1539
if cond & condition)
1540
# error or the other end of multiprocessing.Pipe has closed
1541
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
1542
return False
1543
1544
# Read a request from the child
1545
request = parent_pipe.recv()
1546
command = request[0]
1547
1548
if command == 'init':
1549
fpr = request[1]
1550
address = request[2]
1551
1552
for c in self.clients:
1553
if c.fingerprint == fpr:
1554
client = c
1555
break
1556
else:
1557
logger.info("Client not found for fingerprint: %s, ad"
1558
"dress: %s", fpr, address)
1559
if self.use_dbus:
1560
# Emit D-Bus signal
1561
mandos_dbus_service.ClientNotFound(fpr, address[0])
1562
parent_pipe.send(False)
1563
return False
1564
1565
gobject.io_add_watch(parent_pipe.fileno(),
1566
gobject.IO_IN | gobject.IO_HUP,
1567
functools.partial(self.handle_ipc,
1568
parent_pipe = parent_pipe,
1569
client_object = client))
1570
parent_pipe.send(True)
1571
# remove the old hook in favor of the new above hook on same fileno
1572
return False
1573
if command == 'funcall':
1574
funcname = request[1]
1575
args = request[2]
1576
kwargs = request[3]
1577
1578
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1579
1580
if command == 'getattr':
1581
attrname = request[1]
1582
if callable(client_object.__getattribute__(attrname)):
1583
parent_pipe.send(('function',))
1584
else:
1585
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1586
1587
if command == 'setattr':
1588
attrname = request[1]
1589
value = request[2]
1590
setattr(client_object, attrname, value)
1591
1592
return True
786
1593
787
1594
788
1595
def string_to_delta(interval):
789
1596
"""Parse a string and return a datetime.timedelta
790
1597
791
1598
>>> string_to_delta('7d')
792
1599
datetime.timedelta(7)
793
1600
>>> string_to_delta('60s')
796
1603
datetime.timedelta(0, 3600)
797
1604
>>> string_to_delta('24h')
798
1605
datetime.timedelta(1)
799
>>> string_to_delta(u'1w')
1606
>>> string_to_delta('1w')
800
1607
datetime.timedelta(7)
801
1608
>>> string_to_delta('5m 30s')
802
1609
datetime.timedelta(0, 330)
806
1613
try:
807
1614
suffix = unicode(s[-1])
808
1615
value = int(s[:-1])
809
if suffix == u"d":
1616
if suffix == "d":
810
1617
delta = datetime.timedelta(value)
811
elif suffix == u"s":
1618
elif suffix == "s":
812
1619
delta = datetime.timedelta(0, value)
813
elif suffix == u"m":
1620
elif suffix == "m":
814
1621
delta = datetime.timedelta(0, 0, 0, 0, value)
815
elif suffix == u"h":
1622
elif suffix == "h":
816
1623
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
817
elif suffix == u"w":
1624
elif suffix == "w":
818
1625
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
819
1626
else:
820
raise ValueError
821
except (ValueError, IndexError):
822
raise ValueError
1627
raise ValueError("Unknown suffix %r" % suffix)
1628
except (ValueError, IndexError) as e:
1629
raise ValueError(*(e.args))
823
1630
timevalue += delta
824
1631
return timevalue
825
1632
826
1633
827
def server_state_changed(state):
828
"""Derived from the Avahi example code"""
829
if state == avahi.SERVER_COLLISION:
830
logger.error(u"Zeroconf server name collision")
831
service.remove()
832
elif state == avahi.SERVER_RUNNING:
833
service.add()
834
835
836
def entry_group_state_changed(state, error):
837
"""Derived from the Avahi example code"""
838
logger.debug(u"Avahi state change: %i", state)
839
840
if state == avahi.ENTRY_GROUP_ESTABLISHED:
841
logger.debug(u"Zeroconf service established.")
842
elif state == avahi.ENTRY_GROUP_COLLISION:
843
logger.warning(u"Zeroconf service name collision.")
844
service.rename()
845
elif state == avahi.ENTRY_GROUP_FAILURE:
846
logger.critical(u"Avahi: Error in group state changed %s",
847
unicode(error))
848
raise AvahiGroupError("State changed: %s", str(error))
849
850
1634
def if_nametoindex(interface):
851
"""Call the C function if_nametoindex(), or equivalent"""
1635
"""Call the C function if_nametoindex(), or equivalent
1636
1637
Note: This function cannot accept a unicode string."""
852
1638
global if_nametoindex
853
1639
try:
854
1640
if_nametoindex = (ctypes.cdll.LoadLibrary
855
1641
(ctypes.util.find_library("c"))
856
1642
.if_nametoindex)
857
1643
except (OSError, AttributeError):
858
if "struct" not in sys.modules:
859
import struct
860
if "fcntl" not in sys.modules:
861
import fcntl
1644
logger.warning("Doing if_nametoindex the hard way")
862
1645
def if_nametoindex(interface):
863
1646
"Get an interface index the hard way, i.e. using fcntl()"
864
1647
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
865
with closing(socket.socket()) as s:
1648
with contextlib.closing(socket.socket()) as s:
866
1649
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
867
struct.pack("16s16x", interface))
868
interface_index = struct.unpack("I", ifreq[16:20])[0]
1650
struct.pack(str("16s16x"),
1651
interface))
1652
interface_index = struct.unpack(str("I"),
1653
ifreq[16:20])[0]
869
1654
return interface_index
870
1655
return if_nametoindex(interface)
871
1656
872
1657
873
1658
def daemon(nochdir = False, noclose = False):
874
1659
"""See daemon(3). Standard BSD Unix function.
1660
875
1661
This should really exist as os.daemon, but it doesn't (yet)."""
876
1662
if os.fork():
877
1663
sys.exit()
885
1671
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
886
1672
if not stat.S_ISCHR(os.fstat(null).st_mode):
887
1673
raise OSError(errno.ENODEV,
888
"/dev/null not a character device")
1674
"%s not a character device"
1675
% os.path.devnull)
889
1676
os.dup2(null, sys.stdin.fileno())
890
1677
os.dup2(null, sys.stdout.fileno())
891
1678
os.dup2(null, sys.stderr.fileno())
894
1681
895
1682
896
1683
def main():
897
parser = OptionParser(version = "%%prog %s" % version)
898
parser.add_option("-i", "--interface", type="string",
899
metavar="IF", help="Bind to interface IF")
900
parser.add_option("-a", "--address", type="string",
901
help="Address to listen for requests on")
902
parser.add_option("-p", "--port", type="int",
903
help="Port number to receive requests on")
904
parser.add_option("--check", action="store_true", default=False,
905
help="Run self-test")
906
parser.add_option("--debug", action="store_true",
907
help="Debug mode; run in foreground and log to"
908
" terminal")
909
parser.add_option("--priority", type="string", help="GnuTLS"
910
" priority string (see GnuTLS documentation)")
911
parser.add_option("--servicename", type="string", metavar="NAME",
912
help="Zeroconf service name")
913
parser.add_option("--configdir", type="string",
914
default="/etc/mandos", metavar="DIR",
915
help="Directory to search for configuration"
916
" files")
917
options = parser.parse_args()[0]
1684
1685
##################################################################
1686
# Parsing of options, both command line and config file
1687
1688
parser = argparse.ArgumentParser()
1689
parser.add_argument("-v", "--version", action="version",
1690
version = "%%(prog)s %s" % version,
1691
help="show version number and exit")
1692
parser.add_argument("-i", "--interface", metavar="IF",
1693
help="Bind to interface IF")
1694
parser.add_argument("-a", "--address",
1695
help="Address to listen for requests on")
1696
parser.add_argument("-p", "--port", type=int,
1697
help="Port number to receive requests on")
1698
parser.add_argument("--check", action="store_true",
1699
help="Run self-test")
1700
parser.add_argument("--debug", action="store_true",
1701
help="Debug mode; run in foreground and log"
1702
" to terminal")
1703
parser.add_argument("--debuglevel", metavar="LEVEL",
1704
help="Debug level for stdout output")
1705
parser.add_argument("--priority", help="GnuTLS"
1706
" priority string (see GnuTLS documentation)")
1707
parser.add_argument("--servicename",
1708
metavar="NAME", help="Zeroconf service name")
1709
parser.add_argument("--configdir",
1710
default="/etc/mandos", metavar="DIR",
1711
help="Directory to search for configuration"
1712
" files")
1713
parser.add_argument("--no-dbus", action="store_false",
1714
dest="use_dbus", help="Do not provide D-Bus"
1715
" system bus interface")
1716
parser.add_argument("--no-ipv6", action="store_false",
1717
dest="use_ipv6", help="Do not use IPv6")
1718
options = parser.parse_args()
918
1719
919
1720
if options.check:
920
1721
import doctest
929
1730
"priority":
930
1731
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
931
1732
"servicename": "Mandos",
1733
"use_dbus": "True",
1734
"use_ipv6": "True",
1735
"debuglevel": "",
932
1736
}
933
1737
934
1738
# Parse config file for server-global settings
935
server_config = ConfigParser.SafeConfigParser(server_defaults)
1739
server_config = configparser.SafeConfigParser(server_defaults)
936
1740
del server_defaults
937
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1741
server_config.read(os.path.join(options.configdir,
1742
"mandos.conf"))
938
1743
# Convert the SafeConfigParser object to a dict
939
1744
server_settings = server_config.defaults()
940
# Use getboolean on the boolean config option
941
server_settings["debug"] = (server_config.getboolean
942
("DEFAULT", "debug"))
1745
# Use the appropriate methods on the non-string config options
1746
for option in ("debug", "use_dbus", "use_ipv6"):
1747
server_settings[option] = server_config.getboolean("DEFAULT",
1748
option)
1749
if server_settings["port"]:
1750
server_settings["port"] = server_config.getint("DEFAULT",
1751
"port")
943
1752
del server_config
944
1753
945
1754
# Override the settings from the config file with command line
946
1755
# options, if set.
947
1756
for option in ("interface", "address", "port", "debug",
948
"priority", "servicename", "configdir"):
1757
"priority", "servicename", "configdir",
1758
"use_dbus", "use_ipv6", "debuglevel"):
949
1759
value = getattr(options, option)
950
1760
if value is not None:
951
1761
server_settings[option] = value
952
1762
del options
1763
# Force all strings to be unicode
1764
for option in server_settings.keys():
1765
if type(server_settings[option]) is str:
1766
server_settings[option] = unicode(server_settings[option])
953
1767
# Now we have our good server settings in "server_settings"
954
1768
1769
##################################################################
1770
1771
# For convenience
955
1772
debug = server_settings["debug"]
956
957
if not debug:
958
syslogger.setLevel(logging.WARNING)
959
console.setLevel(logging.WARNING)
960
1773
debuglevel = server_settings["debuglevel"]
1774
use_dbus = server_settings["use_dbus"]
1775
use_ipv6 = server_settings["use_ipv6"]
1776
961
1777
if server_settings["servicename"] != "Mandos":
962
1778
syslogger.setFormatter(logging.Formatter
963
('Mandos (%s): %%(levelname)s:'
964
' %%(message)s'
1779
('Mandos (%s) [%%(process)d]:'
1780
' %%(levelname)s: %%(message)s'
965
1781
% server_settings["servicename"]))
966
1782
967
1783
# Parse config file with clients
968
client_defaults = { "timeout": "1h",
969
"interval": "5m",
970
"checker": "fping -q -- %(host)s",
1784
client_defaults = { "timeout": "5m",
1785
"extended_timeout": "15m",
1786
"interval": "2m",
1787
"checker": "fping -q -- %%(host)s",
971
1788
"host": "",
1789
"approval_delay": "0s",
1790
"approval_duration": "1s",
972
1791
}
973
client_config = ConfigParser.SafeConfigParser(client_defaults)
1792
client_config = configparser.SafeConfigParser(client_defaults)
974
1793
client_config.read(os.path.join(server_settings["configdir"],
975
1794
"clients.conf"))
976
1795
977
clients = Set()
978
tcp_server = IPv6_TCPServer((server_settings["address"],
979
server_settings["port"]),
980
TCP_handler,
981
settings=server_settings,
982
clients=clients)
983
pidfilename = "/var/run/mandos.pid"
984
try:
985
pidfile = open(pidfilename, "w")
986
except IOError, error:
987
logger.error("Could not open file %r", pidfilename)
1796
global mandos_dbus_service
1797
mandos_dbus_service = None
1798
1799
tcp_server = MandosServer((server_settings["address"],
1800
server_settings["port"]),
1801
ClientHandler,
1802
interface=(server_settings["interface"]
1803
or None),
1804
use_ipv6=use_ipv6,
1805
gnutls_priority=
1806
server_settings["priority"],
1807
use_dbus=use_dbus)
1808
if not debug:
1809
pidfilename = "/var/run/mandos.pid"
1810
try:
1811
pidfile = open(pidfilename, "w")
1812
except IOError:
1813
logger.error("Could not open file %r", pidfilename)
988
1814
989
1815
try:
990
1816
uid = pwd.getpwnam("_mandos").pw_uid
1817
gid = pwd.getpwnam("_mandos").pw_gid
991
1818
except KeyError:
992
1819
try:
993
1820
uid = pwd.getpwnam("mandos").pw_uid
1821
gid = pwd.getpwnam("mandos").pw_gid
994
1822
except KeyError:
995
1823
try:
996
1824
uid = pwd.getpwnam("nobody").pw_uid
1825
gid = pwd.getpwnam("nobody").pw_gid
997
1826
except KeyError:
998
1827
uid = 65534
999
try:
1000
gid = pwd.getpwnam("_mandos").pw_gid
1001
except KeyError:
1002
try:
1003
gid = pwd.getpwnam("mandos").pw_gid
1004
except KeyError:
1005
try:
1006
gid = pwd.getpwnam("nogroup").pw_gid
1007
except KeyError:
1008
1828
gid = 65534
1009
1829
try:
1830
os.setgid(gid)
1010
1831
os.setuid(uid)
1011
os.setgid(gid)
1012
except OSError, error:
1832
except OSError as error:
1013
1833
if error[0] != errno.EPERM:
1014
1834
raise error
1015
1835
1016
global service
1017
service = AvahiService(name = server_settings["servicename"],
1018
servicetype = "_mandos._tcp", )
1019
if server_settings["interface"]:
1020
service.interface = (if_nametoindex
1021
(server_settings["interface"]))
1022
1023
global main_loop
1024
global bus
1025
global server
1026
# From the Avahi example code
1027
DBusGMainLoop(set_as_default=True )
1028
main_loop = gobject.MainLoop()
1029
bus = dbus.SystemBus()
1030
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
1031
avahi.DBUS_PATH_SERVER),
1032
avahi.DBUS_INTERFACE_SERVER)
1033
# End of Avahi example code
1034
bus_name = dbus.service.BusName(u"org.mandos-system.Mandos", bus)
1035
1036
clients.update(Set(Client(name = section,
1037
config
1038
= dict(client_config.items(section)))
1039
for section in client_config.sections()))
1040
if not clients:
1041
logger.critical(u"No clients defined")
1042
sys.exit(1)
1043
1836
if not debug and not debuglevel:
1837
syslogger.setLevel(logging.WARNING)
1838
console.setLevel(logging.WARNING)
1839
if debuglevel:
1840
level = getattr(logging, debuglevel.upper())
1841
syslogger.setLevel(level)
1842
console.setLevel(level)
1843
1044
1844
if debug:
1845
# Enable all possible GnuTLS debugging
1846
1847
# "Use a log level over 10 to enable all debugging options."
1848
# - GnuTLS manual
1849
gnutls.library.functions.gnutls_global_set_log_level(11)
1850
1851
@gnutls.library.types.gnutls_log_func
1852
def debug_gnutls(level, string):
1853
logger.debug("GnuTLS: %s", string[:-1])
1854
1855
(gnutls.library.functions
1856
.gnutls_global_set_log_function(debug_gnutls))
1857
1045
1858
# Redirect stdin so all checkers get /dev/null
1046
1859
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1047
1860
os.dup2(null, sys.stdin.fileno())
1050
1863
else:
1051
1864
# No console logging
1052
1865
logger.removeHandler(console)
1866
1867
# Need to fork before connecting to D-Bus
1868
if not debug:
1053
1869
# Close all input and output, do double fork, etc.
1054
1870
daemon()
1055
1871
1056
try:
1057
pid = os.getpid()
1058
pidfile.write(str(pid) + "\n")
1059
pidfile.close()
1060
del pidfile
1061
except IOError:
1062
logger.error(u"Could not write to file %r with PID %d",
1063
pidfilename, pid)
1064
except NameError:
1065
# "pidfile" was never created
1066
pass
1067
del pidfilename
1872
global main_loop
1873
# From the Avahi example code
1874
DBusGMainLoop(set_as_default=True )
1875
main_loop = gobject.MainLoop()
1876
bus = dbus.SystemBus()
1877
# End of Avahi example code
1878
if use_dbus:
1879
try:
1880
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1881
bus, do_not_queue=True)
1882
except dbus.exceptions.NameExistsException as e:
1883
logger.error(unicode(e) + ", disabling D-Bus")
1884
use_dbus = False
1885
server_settings["use_dbus"] = False
1886
tcp_server.use_dbus = False
1887
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1888
service = AvahiService(name = server_settings["servicename"],
1889
servicetype = "_mandos._tcp",
1890
protocol = protocol, bus = bus)
1891
if server_settings["interface"]:
1892
service.interface = (if_nametoindex
1893
(str(server_settings["interface"])))
1894
1895
global multiprocessing_manager
1896
multiprocessing_manager = multiprocessing.Manager()
1897
1898
client_class = Client
1899
if use_dbus:
1900
client_class = functools.partial(ClientDBus, bus = bus)
1901
def client_config_items(config, section):
1902
special_settings = {
1903
"approved_by_default":
1904
lambda: config.getboolean(section,
1905
"approved_by_default"),
1906
}
1907
for name, value in config.items(section):
1908
try:
1909
yield (name, special_settings[name]())
1910
except KeyError:
1911
yield (name, value)
1912
1913
tcp_server.clients.update(set(
1914
client_class(name = section,
1915
config= dict(client_config_items(
1916
client_config, section)))
1917
for section in client_config.sections()))
1918
if not tcp_server.clients:
1919
logger.warning("No clients defined")
1920
1921
if not debug:
1922
try:
1923
with pidfile:
1924
pid = os.getpid()
1925
pidfile.write(str(pid) + "\n".encode("utf-8"))
1926
del pidfile
1927
except IOError:
1928
logger.error("Could not write to file %r with PID %d",
1929
pidfilename, pid)
1930
except NameError:
1931
# "pidfile" was never created
1932
pass
1933
del pidfilename
1934
1935
signal.signal(signal.SIGINT, signal.SIG_IGN)
1936
1937
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1938
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1939
1940
if use_dbus:
1941
class MandosDBusService(dbus.service.Object):
1942
"""A D-Bus proxy object"""
1943
def __init__(self):
1944
dbus.service.Object.__init__(self, bus, "/")
1945
_interface = "se.bsnet.fukt.Mandos"
1946
1947
@dbus.service.signal(_interface, signature="o")
1948
def ClientAdded(self, objpath):
1949
"D-Bus signal"
1950
pass
1951
1952
@dbus.service.signal(_interface, signature="ss")
1953
def ClientNotFound(self, fingerprint, address):
1954
"D-Bus signal"
1955
pass
1956
1957
@dbus.service.signal(_interface, signature="os")
1958
def ClientRemoved(self, objpath, name):
1959
"D-Bus signal"
1960
pass
1961
1962
@dbus.service.method(_interface, out_signature="ao")
1963
def GetAllClients(self):
1964
"D-Bus method"
1965
return dbus.Array(c.dbus_object_path
1966
for c in tcp_server.clients)
1967
1968
@dbus.service.method(_interface,
1969
out_signature="a{oa{sv}}")
1970
def GetAllClientsWithProperties(self):
1971
"D-Bus method"
1972
return dbus.Dictionary(
1973
((c.dbus_object_path, c.GetAll(""))
1974
for c in tcp_server.clients),
1975
signature="oa{sv}")
1976
1977
@dbus.service.method(_interface, in_signature="o")
1978
def RemoveClient(self, object_path):
1979
"D-Bus method"
1980
for c in tcp_server.clients:
1981
if c.dbus_object_path == object_path:
1982
tcp_server.clients.remove(c)
1983
c.remove_from_connection()
1984
# Don't signal anything except ClientRemoved
1985
c.disable(quiet=True)
1986
# Emit D-Bus signal
1987
self.ClientRemoved(object_path, c.name)
1988
return
1989
raise KeyError(object_path)
1990
1991
del _interface
1992
1993
mandos_dbus_service = MandosDBusService()
1068
1994
1069
1995
def cleanup():
1070
1996
"Cleanup function; run on exit"
1071
global group
1072
# From the Avahi example code
1073
if not group is None:
1074
group.Free()
1075
group = None
1076
# End of Avahi example code
1997
service.cleanup()
1077
1998
1078
while clients:
1079
client = clients.pop()
1080
client.stop_hook = None
1081
client.stop()
1999
while tcp_server.clients:
2000
client = tcp_server.clients.pop()
2001
if use_dbus:
2002
client.remove_from_connection()
2003
client.disable_hook = None
2004
# Don't signal anything except ClientRemoved
2005
client.disable(quiet=True)
2006
if use_dbus:
2007
# Emit D-Bus signal
2008
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2009
client.name)
1082
2010
1083
2011
atexit.register(cleanup)
1084
2012
1085
if not debug:
1086
signal.signal(signal.SIGINT, signal.SIG_IGN)
1087
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1088
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1089
1090
class MandosServer(dbus.service.Object):
1091
"""A D-Bus proxy object"""
1092
def __init__(self):
1093
dbus.service.Object.__init__(self, bus,
1094
"/Mandos")
1095
_interface = u"org.mandos_system.Mandos"
1096
1097
@dbus.service.signal(_interface, signature="oa{sv}")
1098
def ClientAdded(self, objpath, properties):
1099
"D-Bus signal"
1100
pass
1101
1102
@dbus.service.signal(_interface, signature="o")
1103
def ClientRemoved(self, objpath):
1104
"D-Bus signal"
1105
pass
1106
1107
@dbus.service.method(_interface, out_signature="ao")
1108
def GetAllClients(self):
1109
return dbus.Array(c.dbus_object_path for c in clients)
1110
1111
@dbus.service.method(_interface, out_signature="a{oa{sv}}")
1112
def GetAllClientsWithProperties(self):
1113
return dbus.Dictionary(
1114
((c.dbus_object_path, c.GetAllProperties())
1115
for c in clients),
1116
signature="oa{sv}")
1117
1118
@dbus.service.method(_interface, in_signature="o")
1119
def RemoveClient(self, object_path):
1120
for c in clients:
1121
if c.dbus_object_path == object_path:
1122
c.stop()
1123
clients.remove(c)
1124
return
1125
raise KeyError
1126
1127
del _interface
1128
1129
mandos_server = MandosServer()
1130
1131
for client in clients:
1132
# Emit D-Bus signal
1133
mandos_server.ClientAdded(client.dbus_object_path,
1134
client.GetAllProperties())
1135
client.start()
2013
for client in tcp_server.clients:
2014
if use_dbus:
2015
# Emit D-Bus signal
2016
mandos_dbus_service.ClientAdded(client.dbus_object_path)
2017
client.enable()
1136
2018
1137
2019
tcp_server.enable()
1138
2020
tcp_server.server_activate()
1139
2021
1140
2022
# Find out what port we got
1141
2023
service.port = tcp_server.socket.getsockname()[1]
1142
logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
1143
u" scope_id %d" % tcp_server.socket.getsockname())
2024
if use_ipv6:
2025
logger.info("Now listening on address %r, port %d,"
2026
" flowinfo %d, scope_id %d"
2027
% tcp_server.socket.getsockname())
2028
else: # IPv4
2029
logger.info("Now listening on address %r, port %d"
2030
% tcp_server.socket.getsockname())
1144
2031
1145
2032
#service.interface = tcp_server.socket.getsockname()[3]
1146
2033
1147
2034
try:
1148
2035
# From the Avahi example code
1149
server.connect_to_signal("StateChanged", server_state_changed)
1150
2036
try:
1151
server_state_changed(server.GetState())
1152
except dbus.exceptions.DBusException, error:
1153
logger.critical(u"DBusException: %s", error)
2037
service.activate()
2038
except dbus.exceptions.DBusException as error:
2039
logger.critical("DBusException: %s", error)
2040
cleanup()
1154
2041
sys.exit(1)
1155
2042
# End of Avahi example code
1156
2043
1159
2046
(tcp_server.handle_request
1160
2047
(*args[2:], **kwargs) or True))
1161
2048
1162
logger.debug(u"Starting main loop")
2049
logger.debug("Starting main loop")
1163
2050
main_loop.run()
1164
except AvahiError, error:
1165
logger.critical(u"AvahiError: %s" + unicode(error))
2051
except AvahiError as error:
2052
logger.critical("AvahiError: %s", error)
2053
cleanup()
1166
2054
sys.exit(1)
1167
2055
except KeyboardInterrupt:
1168
2056
if debug:
1169
print
2057
print("", file=sys.stderr)
2058
logger.debug("Server received KeyboardInterrupt")
2059
logger.debug("Server exiting")
2060
# Must run before the D-Bus bus name gets deregistered
2061
cleanup()
1170
2062
1171
2063
if __name__ == '__main__':
1172
2064
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0