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- Committer: Björn Påhlsson
- Date: 2008-11-12 05:46:49 UTC
- mfrom: (237.1.2 mandos)
- mto: (24.1.154 mandos) (237.4.3 mandos-release)
- mto: This revision was merged to the branch mainline in revision 240.
- Revision ID: belorn@braxen-20081112054649-g3m4i22ncnaf5hbi
merge
- files added:
- debian/mandos-client.config
- files removed:
- debian/watch
- files modified:
- INSTALL
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", "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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# methods "add" and "remove" in the "AvahiService" class, the
10
# "server_state_changed" and "entry_group_state_changed" functions,
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# and some lines in "main".
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12
#
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# Everything else is
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# Copyright © 2008,2009 Teddy Hogeborn
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# Copyright © 2008,2009 Björn Påhlsson
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# Copyright © 2008 Teddy Hogeborn
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# Copyright © 2008 Björn Påhlsson
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#
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# This program is free software: you can redistribute it and/or modify
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18
# it under the terms of the GNU General Public License as published by
33
33
34
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from __future__ import division, with_statement, absolute_import
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import SocketServer as socketserver
36
import SocketServer
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import socket
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import optparse
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from optparse import OptionParser
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import datetime
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import errno
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import gnutls.crypto
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import gnutls.library.functions
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import gnutls.library.constants
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import gnutls.library.types
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import ConfigParser as configparser
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import ConfigParser
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import sys
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import re
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import os
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import signal
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from sets import Set
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import subprocess
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import atexit
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import stat
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import logging.handlers
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import pwd
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from contextlib import closing
59
import struct
60
import fcntl
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import functools
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60
63
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import dbus
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import dbus.service
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66
import ctypes
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67
import ctypes.util
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68
71
try:
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SO_BINDTODEVICE = socket.SO_BINDTODEVICE
73
except AttributeError:
74
try:
75
from IN import SO_BINDTODEVICE
76
except ImportError:
77
SO_BINDTODEVICE = None
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79
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version = "1.0.11"
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82
logger = logging.Logger(u'mandos')
69
version = "1.0.2"
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logger = logging.Logger('mandos')
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72
syslogger = (logging.handlers.SysLogHandler
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(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
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74
address = "/dev/log"))
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syslogger.setFormatter(logging.Formatter
87
(u'Mandos [%(process)d]: %(levelname)s:'
88
u' %(message)s'))
76
('Mandos: %(levelname)s: %(message)s'))
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logger.addHandler(syslogger)
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78
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console = logging.StreamHandler()
92
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
93
u' %(levelname)s:'
94
u' %(message)s'))
80
console.setFormatter(logging.Formatter('%(name)s: %(levelname)s:'
81
' %(message)s'))
95
82
logger.addHandler(console)
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83
97
84
class AvahiError(Exception):
98
def __init__(self, value, *args, **kwargs):
85
def __init__(self, value):
99
86
self.value = value
100
super(AvahiError, self).__init__(value, *args, **kwargs)
101
def __unicode__(self):
102
return unicode(repr(self.value))
87
super(AvahiError, self).__init__()
88
def __str__(self):
89
return repr(self.value)
103
90
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class AvahiServiceError(AvahiError):
105
92
pass
110
97
111
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class AvahiService(object):
112
99
"""An Avahi (Zeroconf) service.
113
114
100
Attributes:
115
101
interface: integer; avahi.IF_UNSPEC or an interface index.
116
102
Used to optionally bind to the specified interface.
117
name: string; Example: u'Mandos'
118
type: string; Example: u'_mandos._tcp'.
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name: string; Example: 'Mandos'
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type: string; Example: '_mandos._tcp'.
119
105
See <http://www.dns-sd.org/ServiceTypes.html>
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port: integer; what port to announce
121
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TXT: list of strings; TXT record for the service
124
110
max_renames: integer; maximum number of renames
125
111
rename_count: integer; counter so we only rename after collisions
126
112
a sensible number of times
127
group: D-Bus Entry Group
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server: D-Bus Server
129
bus: dbus.SystemBus()
130
113
"""
131
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def __init__(self, interface = avahi.IF_UNSPEC, name = None,
132
115
servicetype = None, port = None, TXT = None,
133
domain = u"", host = u"", max_renames = 32768,
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protocol = avahi.PROTO_UNSPEC, bus = None):
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domain = "", host = "", max_renames = 32768):
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117
self.interface = interface
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self.name = name
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119
self.type = servicetype
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123
self.host = host
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124
self.rename_count = 0
143
125
self.max_renames = max_renames
144
self.protocol = protocol
145
self.group = None # our entry group
146
self.server = None
147
self.bus = bus
148
126
def rename(self):
149
127
"""Derived from the Avahi example code"""
150
128
if self.rename_count >= self.max_renames:
151
129
logger.critical(u"No suitable Zeroconf service name found"
152
130
u" after %i retries, exiting.",
153
131
self.rename_count)
154
raise AvahiServiceError(u"Too many renames")
155
self.name = self.server.GetAlternativeServiceName(self.name)
132
raise AvahiServiceError("Too many renames")
133
self.name = server.GetAlternativeServiceName(self.name)
156
134
logger.info(u"Changing Zeroconf service name to %r ...",
157
unicode(self.name))
135
str(self.name))
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syslogger.setFormatter(logging.Formatter
159
(u'Mandos (%s) [%%(process)d]:'
160
u' %%(levelname)s: %%(message)s'
161
% self.name))
137
('Mandos (%s): %%(levelname)s:'
138
' %%(message)s' % self.name))
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self.remove()
163
140
self.add()
164
141
self.rename_count += 1
165
142
def remove(self):
166
143
"""Derived from the Avahi example code"""
167
if self.group is not None:
168
self.group.Reset()
144
if group is not None:
145
group.Reset()
169
146
def add(self):
170
147
"""Derived from the Avahi example code"""
171
if self.group is None:
172
self.group = dbus.Interface(
173
self.bus.get_object(avahi.DBUS_NAME,
174
self.server.EntryGroupNew()),
175
avahi.DBUS_INTERFACE_ENTRY_GROUP)
176
self.group.connect_to_signal('StateChanged',
177
self.entry_group_state_changed)
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)
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156
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
179
self.name, self.type)
180
self.group.AddService(
181
self.interface,
182
self.protocol,
183
dbus.UInt32(0), # flags
184
self.name, self.type,
185
self.domain, self.host,
186
dbus.UInt16(self.port),
187
avahi.string_array_to_txt_array(self.TXT))
188
self.group.Commit()
189
def entry_group_state_changed(self, state, error):
190
"""Derived from the Avahi example code"""
191
logger.debug(u"Avahi state change: %i", state)
192
193
if state == avahi.ENTRY_GROUP_ESTABLISHED:
194
logger.debug(u"Zeroconf service established.")
195
elif state == avahi.ENTRY_GROUP_COLLISION:
196
logger.warning(u"Zeroconf service name collision.")
197
self.rename()
198
elif state == avahi.ENTRY_GROUP_FAILURE:
199
logger.critical(u"Avahi: Error in group state changed %s",
200
unicode(error))
201
raise AvahiGroupError(u"State changed: %s"
202
% unicode(error))
203
def cleanup(self):
204
"""Derived from the Avahi example code"""
205
if self.group is not None:
206
self.group.Free()
207
self.group = None
208
def server_state_changed(self, state):
209
"""Derived from the Avahi example code"""
210
if state == avahi.SERVER_COLLISION:
211
logger.error(u"Zeroconf server name collision")
212
self.remove()
213
elif state == avahi.SERVER_RUNNING:
214
self.add()
215
def activate(self):
216
"""Derived from the Avahi example code"""
217
if self.server is None:
218
self.server = dbus.Interface(
219
self.bus.get_object(avahi.DBUS_NAME,
220
avahi.DBUS_PATH_SERVER),
221
avahi.DBUS_INTERFACE_SERVER)
222
self.server.connect_to_signal(u"StateChanged",
223
self.server_state_changed)
224
self.server_state_changed(self.server.GetState())
225
226
227
class Client(object):
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
class Client(dbus.service.Object):
228
174
"""A representation of a client host served by this server.
229
230
175
Attributes:
231
name: string; from the config file, used in log messages and
232
D-Bus identifiers
176
name: string; from the config file, used in log messages
233
177
fingerprint: string (40 or 32 hexadecimal digits); used to
234
178
uniquely identify the client
235
secret: bytestring; sent verbatim (over TLS) to client
236
host: string; available for use by the checker command
237
created: datetime.datetime(); (UTC) object creation
238
last_enabled: datetime.datetime(); (UTC)
239
enabled: bool()
179
secret: bytestring; sent verbatim (over TLS) to client
180
host: string; available for use by the checker command
181
created: datetime.datetime(); (UTC) object creation
182
started: datetime.datetime(); (UTC) last started
240
183
last_checked_ok: datetime.datetime(); (UTC) or None
241
timeout: datetime.timedelta(); How long from last_checked_ok
242
until this client is invalid
243
interval: datetime.timedelta(); How often to start a new checker
244
disable_hook: If set, called by disable() as disable_hook(self)
245
checker: subprocess.Popen(); a running checker process used
246
to see if the client lives.
247
'None' if no process is running.
184
timeout: datetime.timedelta(); How long from last_checked_ok
185
until this client is invalid
186
interval: datetime.timedelta(); How often to start a new checker
187
stop_hook: If set, called by stop() as stop_hook(self)
188
checker: subprocess.Popen(); a running checker process used
189
to see if the client lives.
190
'None' if no process is running.
248
191
checker_initiator_tag: a gobject event source tag, or None
249
disable_initiator_tag: - '' -
192
stop_initiator_tag: - '' -
250
193
checker_callback_tag: - '' -
251
194
checker_command: string; External command which is run to check if
252
195
client lives. %() expansions are done at
253
196
runtime with vars(self) as dict, so that for
254
197
instance %(name)s can be used in the command.
255
current_checker_command: string; current running checker_command
198
Private attibutes:
199
_timeout: Real variable for 'timeout'
200
_interval: Real variable for 'interval'
201
_timeout_milliseconds: Used when calling gobject.timeout_add()
202
_interval_milliseconds: - '' -
256
203
"""
257
258
@staticmethod
259
def _datetime_to_milliseconds(dt):
260
"Convert a datetime.datetime() to milliseconds"
261
return ((dt.days * 24 * 60 * 60 * 1000)
262
+ (dt.seconds * 1000)
263
+ (dt.microseconds // 1000))
264
265
def timeout_milliseconds(self):
266
"Return the 'timeout' attribute in milliseconds"
267
return self._datetime_to_milliseconds(self.timeout)
268
269
def interval_milliseconds(self):
270
"Return the 'interval' attribute in milliseconds"
271
return self._datetime_to_milliseconds(self.interval)
272
273
def __init__(self, name = None, disable_hook=None, config=None):
204
def _set_timeout(self, timeout):
205
"Setter function for the 'timeout' attribute"
206
self._timeout = timeout
207
self._timeout_milliseconds = ((self.timeout.days
208
* 24 * 60 * 60 * 1000)
209
+ (self.timeout.seconds * 1000)
210
+ (self.timeout.microseconds
211
// 1000))
212
# Emit D-Bus signal
213
self.TimeoutChanged(self._timeout_milliseconds)
214
timeout = property(lambda self: self._timeout, _set_timeout)
215
del _set_timeout
216
217
def _set_interval(self, interval):
218
"Setter function for the 'interval' attribute"
219
self._interval = interval
220
self._interval_milliseconds = ((self.interval.days
221
* 24 * 60 * 60 * 1000)
222
+ (self.interval.seconds
223
* 1000)
224
+ (self.interval.microseconds
225
// 1000))
226
# Emit D-Bus signal
227
self.IntervalChanged(self._interval_milliseconds)
228
interval = property(lambda self: self._interval, _set_interval)
229
del _set_interval
230
231
def __init__(self, name = None, stop_hook=None, config=None):
274
232
"""Note: the 'checker' key in 'config' sets the
275
233
'checker_command' attribute and *not* the 'checker'
276
234
attribute."""
277
self.name = name
235
dbus.service.Object.__init__(self, bus,
236
"/Mandos/clients/%s"
237
% name.replace(".", "_"))
278
238
if config is None:
279
239
config = {}
240
self.name = name
280
241
logger.debug(u"Creating client %r", self.name)
281
242
# Uppercase and remove spaces from fingerprint for later
282
243
# comparison purposes with return value from the fingerprint()
283
244
# function
284
self.fingerprint = (config[u"fingerprint"].upper()
245
self.fingerprint = (config["fingerprint"].upper()
285
246
.replace(u" ", u""))
286
247
logger.debug(u" Fingerprint: %s", self.fingerprint)
287
if u"secret" in config:
288
self.secret = config[u"secret"].decode(u"base64")
289
elif u"secfile" in config:
248
if "secret" in config:
249
self.secret = config["secret"].decode(u"base64")
250
elif "secfile" in config:
290
251
with closing(open(os.path.expanduser
291
252
(os.path.expandvars
292
(config[u"secfile"])))) as secfile:
253
(config["secfile"])))) as secfile:
293
254
self.secret = secfile.read()
294
255
else:
295
256
raise TypeError(u"No secret or secfile for client %s"
296
257
% self.name)
297
self.host = config.get(u"host", u"")
258
self.host = config.get("host", "")
298
259
self.created = datetime.datetime.utcnow()
299
self.enabled = False
300
self.last_enabled = None
260
self.started = None
301
261
self.last_checked_ok = None
302
self.timeout = string_to_delta(config[u"timeout"])
303
self.interval = string_to_delta(config[u"interval"])
304
self.disable_hook = disable_hook
262
self.timeout = string_to_delta(config["timeout"])
263
self.interval = string_to_delta(config["interval"])
264
self.stop_hook = stop_hook
305
265
self.checker = None
306
266
self.checker_initiator_tag = None
307
self.disable_initiator_tag = None
267
self.stop_initiator_tag = None
308
268
self.checker_callback_tag = None
309
self.checker_command = config[u"checker"]
310
self.current_checker_command = None
311
self.last_connect = None
269
self.check_command = config["checker"]
312
270
313
def enable(self):
271
def start(self):
314
272
"""Start this client's checker and timeout hooks"""
315
if getattr(self, u"enabled", False):
316
# Already enabled
317
return
318
self.last_enabled = datetime.datetime.utcnow()
273
self.started = datetime.datetime.utcnow()
319
274
# Schedule a new checker to be started an 'interval' from now,
320
275
# and every interval from then on.
321
276
self.checker_initiator_tag = (gobject.timeout_add
322
(self.interval_milliseconds(),
277
(self._interval_milliseconds,
323
278
self.start_checker))
324
279
# Also start a new checker *right now*.
325
280
self.start_checker()
326
# Schedule a disable() when 'timeout' has passed
327
self.disable_initiator_tag = (gobject.timeout_add
328
(self.timeout_milliseconds(),
329
self.disable))
330
self.enabled = True
281
# Schedule a stop() when 'timeout' has passed
282
self.stop_initiator_tag = (gobject.timeout_add
283
(self._timeout_milliseconds,
284
self.stop))
285
# Emit D-Bus signal
286
self.StateChanged(True)
331
287
332
def disable(self):
333
"""Disable this client."""
334
if not getattr(self, "enabled", False):
288
def stop(self):
289
"""Stop this client."""
290
if getattr(self, "started", None) is not None:
291
logger.info(u"Stopping client %s", self.name)
292
else:
335
293
return False
336
logger.info(u"Disabling client %s", self.name)
337
if getattr(self, u"disable_initiator_tag", False):
338
gobject.source_remove(self.disable_initiator_tag)
339
self.disable_initiator_tag = None
340
if getattr(self, u"checker_initiator_tag", False):
294
if getattr(self, "stop_initiator_tag", False):
295
gobject.source_remove(self.stop_initiator_tag)
296
self.stop_initiator_tag = None
297
if getattr(self, "checker_initiator_tag", False):
341
298
gobject.source_remove(self.checker_initiator_tag)
342
299
self.checker_initiator_tag = None
343
300
self.stop_checker()
344
if self.disable_hook:
345
self.disable_hook(self)
346
self.enabled = False
301
if self.stop_hook:
302
self.stop_hook(self)
303
self.started = None
304
# Emit D-Bus signal
305
self.StateChanged(False)
347
306
# Do not run this again if called by a gobject.timeout_add
348
307
return False
349
308
350
309
def __del__(self):
351
self.disable_hook = None
352
self.disable()
310
self.stop_hook = None
311
self.stop()
353
312
354
def checker_callback(self, pid, condition, command):
313
def checker_callback(self, pid, condition):
355
314
"""The checker has completed, so take appropriate actions."""
356
315
self.checker_callback_tag = None
357
316
self.checker = None
358
if os.WIFEXITED(condition):
359
exitstatus = os.WEXITSTATUS(condition)
360
if exitstatus == 0:
361
logger.info(u"Checker for %(name)s succeeded",
362
vars(self))
363
self.checked_ok()
364
else:
365
logger.info(u"Checker for %(name)s failed",
366
vars(self))
367
else:
317
if (os.WIFEXITED(condition)
318
and (os.WEXITSTATUS(condition) == 0)):
319
logger.info(u"Checker for %(name)s succeeded",
320
vars(self))
321
# Emit D-Bus signal
322
self.CheckerCompleted(True)
323
self.bump_timeout()
324
elif not os.WIFEXITED(condition):
368
325
logger.warning(u"Checker for %(name)s crashed?",
369
326
vars(self))
327
# Emit D-Bus signal
328
self.CheckerCompleted(False)
329
else:
330
logger.info(u"Checker for %(name)s failed",
331
vars(self))
332
# Emit D-Bus signal
333
self.CheckerCompleted(False)
370
334
371
def checked_ok(self):
335
def bump_timeout(self):
372
336
"""Bump up the timeout for this client.
373
374
337
This should only be called when the client has been seen,
375
338
alive and well.
376
339
"""
377
340
self.last_checked_ok = datetime.datetime.utcnow()
378
gobject.source_remove(self.disable_initiator_tag)
379
self.disable_initiator_tag = (gobject.timeout_add
380
(self.timeout_milliseconds(),
381
self.disable))
341
gobject.source_remove(self.stop_initiator_tag)
342
self.stop_initiator_tag = (gobject.timeout_add
343
(self._timeout_milliseconds,
344
self.stop))
382
345
383
346
def start_checker(self):
384
347
"""Start a new checker subprocess if one is not running.
385
386
348
If a checker already exists, leave it running and do
387
349
nothing."""
388
350
# The reason for not killing a running checker is that if we
393
355
# checkers alone, the checker would have to take more time
394
356
# than 'timeout' for the client to be declared invalid, which
395
357
# is as it should be.
396
397
# If a checker exists, make sure it is not a zombie
398
if self.checker is not None:
399
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
400
if pid:
401
logger.warning(u"Checker was a zombie")
402
gobject.source_remove(self.checker_callback_tag)
403
self.checker_callback(pid, status,
404
self.current_checker_command)
405
# Start a new checker if needed
406
358
if self.checker is None:
407
359
try:
408
# In case checker_command has exactly one % operator
409
command = self.checker_command % self.host
360
# In case check_command has exactly one % operator
361
command = self.check_command % self.host
410
362
except TypeError:
411
363
# Escape attributes for the shell
412
escaped_attrs = dict((key,
413
re.escape(unicode(str(val),
414
errors=
415
u'replace')))
364
escaped_attrs = dict((key, re.escape(str(val)))
416
365
for key, val in
417
366
vars(self).iteritems())
418
367
try:
419
command = self.checker_command % escaped_attrs
368
command = self.check_command % escaped_attrs
420
369
except TypeError, error:
421
370
logger.error(u'Could not format string "%s":'
422
u' %s', self.checker_command, error)
371
u' %s', self.check_command, error)
423
372
return True # Try again later
424
self.current_checker_command = command
425
373
try:
426
374
logger.info(u"Starting checker %r for %s",
427
375
command, self.name)
431
379
# always replaced by /dev/null.)
432
380
self.checker = subprocess.Popen(command,
433
381
close_fds=True,
434
shell=True, cwd=u"/")
382
shell=True, cwd="/")
435
383
self.checker_callback_tag = (gobject.child_watch_add
436
384
(self.checker.pid,
437
self.checker_callback,
438
data=command))
439
# The checker may have completed before the gobject
440
# watch was added. Check for this.
441
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
442
if pid:
443
gobject.source_remove(self.checker_callback_tag)
444
self.checker_callback(pid, status, command)
385
self.checker_callback))
386
# Emit D-Bus signal
387
self.CheckerStarted(command)
445
388
except OSError, error:
446
389
logger.error(u"Failed to start subprocess: %s",
447
390
error)
453
396
if self.checker_callback_tag:
454
397
gobject.source_remove(self.checker_callback_tag)
455
398
self.checker_callback_tag = None
456
if getattr(self, u"checker", None) is None:
399
if getattr(self, "checker", None) is None:
457
400
return
458
401
logger.debug(u"Stopping checker for %(name)s", vars(self))
459
402
try:
468
411
469
412
def still_valid(self):
470
413
"""Has the timeout not yet passed for this client?"""
471
if not getattr(self, u"enabled", False):
414
if not self.started:
472
415
return False
473
416
now = datetime.datetime.utcnow()
474
417
if self.last_checked_ok is None:
475
418
return now < (self.created + self.timeout)
476
419
else:
477
420
return now < (self.last_checked_ok + self.timeout)
478
479
480
class ClientDBus(Client, dbus.service.Object):
481
"""A Client class using D-Bus
482
483
Attributes:
484
dbus_object_path: dbus.ObjectPath
485
bus: dbus.SystemBus()
486
"""
487
# dbus.service.Object doesn't use super(), so we can't either.
488
489
def __init__(self, bus = None, *args, **kwargs):
490
self.bus = bus
491
Client.__init__(self, *args, **kwargs)
492
# Only now, when this client is initialized, can it show up on
493
# the D-Bus
494
self.dbus_object_path = (dbus.ObjectPath
495
(u"/clients/"
496
+ self.name.replace(u".", u"_")))
497
dbus.service.Object.__init__(self, self.bus,
498
self.dbus_object_path)
499
500
@staticmethod
501
def _datetime_to_dbus(dt, variant_level=0):
502
"""Convert a UTC datetime.datetime() to a D-Bus type."""
503
return dbus.String(dt.isoformat(),
504
variant_level=variant_level)
505
506
def enable(self):
507
oldstate = getattr(self, u"enabled", False)
508
r = Client.enable(self)
509
if oldstate != self.enabled:
510
# Emit D-Bus signals
511
self.PropertyChanged(dbus.String(u"enabled"),
512
dbus.Boolean(True, variant_level=1))
513
self.PropertyChanged(
514
dbus.String(u"last_enabled"),
515
self._datetime_to_dbus(self.last_enabled,
516
variant_level=1))
517
return r
518
519
def disable(self, signal = True):
520
oldstate = getattr(self, u"enabled", False)
521
r = Client.disable(self)
522
if signal and oldstate != self.enabled:
523
# Emit D-Bus signal
524
self.PropertyChanged(dbus.String(u"enabled"),
525
dbus.Boolean(False, variant_level=1))
526
return r
527
528
def __del__(self, *args, **kwargs):
529
try:
530
self.remove_from_connection()
531
except LookupError:
532
pass
533
if hasattr(dbus.service.Object, u"__del__"):
534
dbus.service.Object.__del__(self, *args, **kwargs)
535
Client.__del__(self, *args, **kwargs)
536
537
def checker_callback(self, pid, condition, command,
538
*args, **kwargs):
539
self.checker_callback_tag = None
540
self.checker = None
541
# Emit D-Bus signal
542
self.PropertyChanged(dbus.String(u"checker_running"),
543
dbus.Boolean(False, variant_level=1))
544
if os.WIFEXITED(condition):
545
exitstatus = os.WEXITSTATUS(condition)
546
# Emit D-Bus signal
547
self.CheckerCompleted(dbus.Int16(exitstatus),
548
dbus.Int64(condition),
549
dbus.String(command))
550
else:
551
# Emit D-Bus signal
552
self.CheckerCompleted(dbus.Int16(-1),
553
dbus.Int64(condition),
554
dbus.String(command))
555
556
return Client.checker_callback(self, pid, condition, command,
557
*args, **kwargs)
558
559
def checked_ok(self, *args, **kwargs):
560
r = Client.checked_ok(self, *args, **kwargs)
561
# Emit D-Bus signal
562
self.PropertyChanged(
563
dbus.String(u"last_checked_ok"),
564
(self._datetime_to_dbus(self.last_checked_ok,
565
variant_level=1)))
566
return r
567
568
def start_checker(self, *args, **kwargs):
569
old_checker = self.checker
570
if self.checker is not None:
571
old_checker_pid = self.checker.pid
572
else:
573
old_checker_pid = None
574
r = Client.start_checker(self, *args, **kwargs)
575
# Only if new checker process was started
576
if (self.checker is not None
577
and old_checker_pid != self.checker.pid):
578
# Emit D-Bus signal
579
self.CheckerStarted(self.current_checker_command)
580
self.PropertyChanged(
581
dbus.String(u"checker_running"),
582
dbus.Boolean(True, variant_level=1))
583
return r
584
585
def stop_checker(self, *args, **kwargs):
586
old_checker = getattr(self, u"checker", None)
587
r = Client.stop_checker(self, *args, **kwargs)
588
if (old_checker is not None
589
and getattr(self, u"checker", None) is None):
590
self.PropertyChanged(dbus.String(u"checker_running"),
591
dbus.Boolean(False, variant_level=1))
592
return r
593
421
594
422
## D-Bus methods & signals
595
_interface = u"se.bsnet.fukt.Mandos.Client"
596
597
# CheckedOK - method
598
@dbus.service.method(_interface)
599
def CheckedOK(self):
600
return self.checked_ok()
423
_interface = u"org.mandos_system.Mandos.Client"
424
425
def _datetime_to_dbus_struct(dt):
426
return dbus.Struct(dt.year, dt.month, dt.day, dt.hour,
427
dt.minute, dt.second, dt.microsecond,
428
signature="nyyyyyu")
429
430
# BumpTimeout - method
431
BumpTimeout = dbus.service.method(_interface)(bump_timeout)
432
BumpTimeout.__name__ = "BumpTimeout"
433
434
# IntervalChanged - signal
435
@dbus.service.signal(_interface, signature="t")
436
def IntervalChanged(self, t):
437
"D-Bus signal"
438
pass
601
439
602
440
# CheckerCompleted - signal
603
@dbus.service.signal(_interface, signature=u"nxs")
604
def CheckerCompleted(self, exitcode, waitstatus, command):
441
@dbus.service.signal(_interface, signature="b")
442
def CheckerCompleted(self, success):
605
443
"D-Bus signal"
606
444
pass
607
445
446
# CheckerIsRunning - method
447
@dbus.service.method(_interface, out_signature="b")
448
def CheckerIsRunning(self):
449
"D-Bus getter method"
450
return self.checker is not None
451
608
452
# CheckerStarted - signal
609
@dbus.service.signal(_interface, signature=u"s")
453
@dbus.service.signal(_interface, signature="s")
610
454
def CheckerStarted(self, command):
611
455
"D-Bus signal"
612
456
pass
613
457
614
# GetAllProperties - method
615
@dbus.service.method(_interface, out_signature=u"a{sv}")
616
def GetAllProperties(self):
617
"D-Bus method"
618
return dbus.Dictionary({
619
dbus.String(u"name"):
620
dbus.String(self.name, variant_level=1),
621
dbus.String(u"fingerprint"):
622
dbus.String(self.fingerprint, variant_level=1),
623
dbus.String(u"host"):
624
dbus.String(self.host, variant_level=1),
625
dbus.String(u"created"):
626
self._datetime_to_dbus(self.created,
627
variant_level=1),
628
dbus.String(u"last_enabled"):
629
(self._datetime_to_dbus(self.last_enabled,
630
variant_level=1)
631
if self.last_enabled is not None
632
else dbus.Boolean(False, variant_level=1)),
633
dbus.String(u"enabled"):
634
dbus.Boolean(self.enabled, variant_level=1),
635
dbus.String(u"last_checked_ok"):
636
(self._datetime_to_dbus(self.last_checked_ok,
637
variant_level=1)
638
if self.last_checked_ok is not None
639
else dbus.Boolean (False, variant_level=1)),
640
dbus.String(u"timeout"):
641
dbus.UInt64(self.timeout_milliseconds(),
642
variant_level=1),
643
dbus.String(u"interval"):
644
dbus.UInt64(self.interval_milliseconds(),
645
variant_level=1),
646
dbus.String(u"checker"):
647
dbus.String(self.checker_command,
648
variant_level=1),
649
dbus.String(u"checker_running"):
650
dbus.Boolean(self.checker is not None,
651
variant_level=1),
652
dbus.String(u"object_path"):
653
dbus.ObjectPath(self.dbus_object_path,
654
variant_level=1)
655
}, signature=u"sv")
656
657
# IsStillValid - method
658
@dbus.service.method(_interface, out_signature=u"b")
659
def IsStillValid(self):
660
return self.still_valid()
661
662
# PropertyChanged - signal
663
@dbus.service.signal(_interface, signature=u"sv")
664
def PropertyChanged(self, property, value):
665
"D-Bus signal"
666
pass
667
668
# ReceivedSecret - signal
669
@dbus.service.signal(_interface)
670
def ReceivedSecret(self):
671
"D-Bus signal"
672
pass
673
674
# Rejected - signal
675
@dbus.service.signal(_interface)
676
def Rejected(self):
677
"D-Bus signal"
678
pass
458
# GetChecker - method
459
@dbus.service.method(_interface, out_signature="s")
460
def GetChecker(self):
461
"D-Bus getter method"
462
return self.checker_command
463
464
# GetCreated - method
465
@dbus.service.method(_interface, out_signature="(nyyyyyu)")
466
def GetCreated(self):
467
"D-Bus getter method"
468
return datetime_to_dbus_struct(self.created)
469
470
# GetFingerprint - method
471
@dbus.service.method(_interface, out_signature="s")
472
def GetFingerprint(self):
473
"D-Bus getter method"
474
return self.fingerprint
475
476
# GetHost - method
477
@dbus.service.method(_interface, out_signature="s")
478
def GetHost(self):
479
"D-Bus getter method"
480
return self.host
481
482
# GetInterval - method
483
@dbus.service.method(_interface, out_signature="t")
484
def GetInterval(self):
485
"D-Bus getter method"
486
return self._interval_milliseconds
487
488
# GetName - method
489
@dbus.service.method(_interface, out_signature="s")
490
def GetName(self):
491
"D-Bus getter method"
492
return self.name
493
494
# GetStarted - method
495
@dbus.service.method(_interface, out_signature="(nyyyyyu)")
496
def GetStarted(self):
497
"D-Bus getter method"
498
if self.started is not None:
499
return datetime_to_dbus_struct(self.started)
500
else:
501
return dbus.Struct(0, 0, 0, 0, 0, 0, 0,
502
signature="nyyyyyu")
503
504
# GetTimeout - method
505
@dbus.service.method(_interface, out_signature="t")
506
def GetTimeout(self):
507
"D-Bus getter method"
508
return self._timeout_milliseconds
679
509
680
510
# SetChecker - method
681
@dbus.service.method(_interface, in_signature=u"s")
511
@dbus.service.method(_interface, in_signature="s")
682
512
def SetChecker(self, checker):
683
513
"D-Bus setter method"
684
514
self.checker_command = checker
685
# Emit D-Bus signal
686
self.PropertyChanged(dbus.String(u"checker"),
687
dbus.String(self.checker_command,
688
variant_level=1))
689
515
690
516
# SetHost - method
691
@dbus.service.method(_interface, in_signature=u"s")
517
@dbus.service.method(_interface, in_signature="s")
692
518
def SetHost(self, host):
693
519
"D-Bus setter method"
694
520
self.host = host
695
# Emit D-Bus signal
696
self.PropertyChanged(dbus.String(u"host"),
697
dbus.String(self.host, variant_level=1))
698
521
699
522
# SetInterval - method
700
@dbus.service.method(_interface, in_signature=u"t")
523
@dbus.service.method(_interface, in_signature="t")
701
524
def SetInterval(self, milliseconds):
702
self.interval = datetime.timedelta(0, 0, 0, milliseconds)
703
# Emit D-Bus signal
704
self.PropertyChanged(dbus.String(u"interval"),
705
(dbus.UInt64(self.interval_milliseconds(),
706
variant_level=1)))
525
self.interval = datetime.timdeelta(0, 0, 0, milliseconds)
526
527
# SetTimeout - method
528
@dbus.service.method(_interface, in_signature="t")
529
def SetTimeout(self, milliseconds):
530
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
707
531
708
532
# SetSecret - method
709
@dbus.service.method(_interface, in_signature=u"ay",
533
@dbus.service.method(_interface, in_signature="ay",
710
534
byte_arrays=True)
711
535
def SetSecret(self, secret):
712
536
"D-Bus setter method"
713
537
self.secret = str(secret)
714
538
715
# SetTimeout - method
716
@dbus.service.method(_interface, in_signature=u"t")
717
def SetTimeout(self, milliseconds):
718
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
719
# Emit D-Bus signal
720
self.PropertyChanged(dbus.String(u"timeout"),
721
(dbus.UInt64(self.timeout_milliseconds(),
722
variant_level=1)))
723
724
# Enable - method
725
@dbus.service.method(_interface)
726
def Enable(self):
727
"D-Bus method"
728
self.enable()
539
# Start - method
540
Start = dbus.service.method(_interface)(start)
541
Start.__name__ = "Start"
729
542
730
543
# StartChecker - method
731
@dbus.service.method(_interface)
732
def StartChecker(self):
733
"D-Bus method"
734
self.start_checker()
735
736
# Disable - method
737
@dbus.service.method(_interface)
738
def Disable(self):
739
"D-Bus method"
740
self.disable()
544
StartChecker = dbus.service.method(_interface)(start_checker)
545
StartChecker.__name__ = "StartChecker"
546
547
# StateChanged - signal
548
@dbus.service.signal(_interface, signature="b")
549
def StateChanged(self, started):
550
"D-Bus signal"
551
pass
552
553
# StillValid - method
554
StillValid = (dbus.service.method(_interface, out_signature="b")
555
(still_valid))
556
StillValid.__name__ = "StillValid"
557
558
# Stop - method
559
Stop = dbus.service.method(_interface)(stop)
560
Stop.__name__ = "Stop"
741
561
742
562
# StopChecker - method
743
@dbus.service.method(_interface)
744
def StopChecker(self):
745
self.stop_checker()
746
563
StopChecker = dbus.service.method(_interface)(stop_checker)
564
StopChecker.__name__ = "StopChecker"
565
566
# TimeoutChanged - signal
567
@dbus.service.signal(_interface, signature="t")
568
def TimeoutChanged(self, t):
569
"D-Bus signal"
570
pass
571
572
del _datetime_to_dbus_struct
747
573
del _interface
748
574
749
575
750
class ClientHandler(socketserver.BaseRequestHandler, object):
751
"""A class to handle client connections.
752
753
Instantiated once for each connection to handle it.
576
def peer_certificate(session):
577
"Return the peer's OpenPGP certificate as a bytestring"
578
# If not an OpenPGP certificate...
579
if (gnutls.library.functions
580
.gnutls_certificate_type_get(session._c_object)
581
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
582
# ...do the normal thing
583
return session.peer_certificate
584
list_size = ctypes.c_uint()
585
cert_list = (gnutls.library.functions
586
.gnutls_certificate_get_peers
587
(session._c_object, ctypes.byref(list_size)))
588
if list_size.value == 0:
589
return None
590
cert = cert_list[0]
591
return ctypes.string_at(cert.data, cert.size)
592
593
594
def fingerprint(openpgp):
595
"Convert an OpenPGP bytestring to a hexdigit fingerprint string"
596
# New GnuTLS "datum" with the OpenPGP public key
597
datum = (gnutls.library.types
598
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
599
ctypes.POINTER
600
(ctypes.c_ubyte)),
601
ctypes.c_uint(len(openpgp))))
602
# New empty GnuTLS certificate
603
crt = gnutls.library.types.gnutls_openpgp_crt_t()
604
(gnutls.library.functions
605
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
606
# Import the OpenPGP public key into the certificate
607
(gnutls.library.functions
608
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
609
gnutls.library.constants
610
.GNUTLS_OPENPGP_FMT_RAW))
611
# Verify the self signature in the key
612
crtverify = ctypes.c_uint()
613
(gnutls.library.functions
614
.gnutls_openpgp_crt_verify_self(crt, 0, ctypes.byref(crtverify)))
615
if crtverify.value != 0:
616
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
617
raise gnutls.errors.CertificateSecurityError("Verify failed")
618
# New buffer for the fingerprint
619
buf = ctypes.create_string_buffer(20)
620
buf_len = ctypes.c_size_t()
621
# Get the fingerprint from the certificate into the buffer
622
(gnutls.library.functions
623
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
624
ctypes.byref(buf_len)))
625
# Deinit the certificate
626
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
627
# Convert the buffer to a Python bytestring
628
fpr = ctypes.string_at(buf, buf_len.value)
629
# Convert the bytestring to hexadecimal notation
630
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
631
return hex_fpr
632
633
634
class TCP_handler(SocketServer.BaseRequestHandler, object):
635
"""A TCP request handler class.
636
Instantiated by IPv6_TCPServer for each request to handle it.
754
637
Note: This will run in its own forked process."""
755
638
756
639
def handle(self):
757
640
logger.info(u"TCP connection from: %s",
758
641
unicode(self.client_address))
759
logger.debug(u"IPC Pipe FD: %d", self.server.pipe[1])
760
# Open IPC pipe to parent process
761
with closing(os.fdopen(self.server.pipe[1], u"w", 1)) as ipc:
762
session = (gnutls.connection
763
.ClientSession(self.request,
764
gnutls.connection
765
.X509Credentials()))
766
767
line = self.request.makefile().readline()
768
logger.debug(u"Protocol version: %r", line)
769
try:
770
if int(line.strip().split()[0]) > 1:
771
raise RuntimeError
772
except (ValueError, IndexError, RuntimeError), error:
773
logger.error(u"Unknown protocol version: %s", error)
774
return
775
776
# Note: gnutls.connection.X509Credentials is really a
777
# generic GnuTLS certificate credentials object so long as
778
# no X.509 keys are added to it. Therefore, we can use it
779
# here despite using OpenPGP certificates.
780
781
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
782
# u"+AES-256-CBC", u"+SHA1",
783
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
784
# u"+DHE-DSS"))
785
# Use a fallback default, since this MUST be set.
786
priority = self.server.gnutls_priority
787
if priority is None:
788
priority = u"NORMAL"
789
(gnutls.library.functions
790
.gnutls_priority_set_direct(session._c_object,
791
priority, None))
792
793
try:
794
session.handshake()
795
except gnutls.errors.GNUTLSError, error:
796
logger.warning(u"Handshake failed: %s", error)
797
# Do not run session.bye() here: the session is not
798
# established. Just abandon the request.
799
return
800
logger.debug(u"Handshake succeeded")
801
try:
802
fpr = self.fingerprint(self.peer_certificate(session))
803
except (TypeError, gnutls.errors.GNUTLSError), error:
804
logger.warning(u"Bad certificate: %s", error)
805
session.bye()
806
return
807
logger.debug(u"Fingerprint: %s", fpr)
808
809
for c in self.server.clients:
810
if c.fingerprint == fpr:
811
client = c
812
break
813
else:
814
ipc.write(u"NOTFOUND %s %s\n"
815
% (fpr, unicode(self.client_address)))
816
session.bye()
817
return
818
# Have to check if client.still_valid(), since it is
819
# possible that the client timed out while establishing
820
# the GnuTLS session.
821
if not client.still_valid():
822
ipc.write(u"INVALID %s\n" % client.name)
823
session.bye()
824
return
825
ipc.write(u"SENDING %s\n" % client.name)
826
sent_size = 0
827
while sent_size < len(client.secret):
828
sent = session.send(client.secret[sent_size:])
829
logger.debug(u"Sent: %d, remaining: %d",
830
sent, len(client.secret)
831
- (sent_size + sent))
832
sent_size += sent
833
session.bye()
834
835
@staticmethod
836
def peer_certificate(session):
837
"Return the peer's OpenPGP certificate as a bytestring"
838
# If not an OpenPGP certificate...
839
if (gnutls.library.functions
840
.gnutls_certificate_type_get(session._c_object)
841
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
842
# ...do the normal thing
843
return session.peer_certificate
844
list_size = ctypes.c_uint(1)
845
cert_list = (gnutls.library.functions
846
.gnutls_certificate_get_peers
847
(session._c_object, ctypes.byref(list_size)))
848
if not bool(cert_list) and list_size.value != 0:
849
raise gnutls.errors.GNUTLSError(u"error getting peer"
850
u" certificate")
851
if list_size.value == 0:
852
return None
853
cert = cert_list[0]
854
return ctypes.string_at(cert.data, cert.size)
855
856
@staticmethod
857
def fingerprint(openpgp):
858
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
859
# New GnuTLS "datum" with the OpenPGP public key
860
datum = (gnutls.library.types
861
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
862
ctypes.POINTER
863
(ctypes.c_ubyte)),
864
ctypes.c_uint(len(openpgp))))
865
# New empty GnuTLS certificate
866
crt = gnutls.library.types.gnutls_openpgp_crt_t()
867
(gnutls.library.functions
868
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
869
# Import the OpenPGP public key into the certificate
870
(gnutls.library.functions
871
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
872
gnutls.library.constants
873
.GNUTLS_OPENPGP_FMT_RAW))
874
# Verify the self signature in the key
875
crtverify = ctypes.c_uint()
876
(gnutls.library.functions
877
.gnutls_openpgp_crt_verify_self(crt, 0,
878
ctypes.byref(crtverify)))
879
if crtverify.value != 0:
880
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
881
raise (gnutls.errors.CertificateSecurityError
882
(u"Verify failed"))
883
# New buffer for the fingerprint
884
buf = ctypes.create_string_buffer(20)
885
buf_len = ctypes.c_size_t()
886
# Get the fingerprint from the certificate into the buffer
887
(gnutls.library.functions
888
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
889
ctypes.byref(buf_len)))
890
# Deinit the certificate
891
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
892
# Convert the buffer to a Python bytestring
893
fpr = ctypes.string_at(buf, buf_len.value)
894
# Convert the bytestring to hexadecimal notation
895
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
896
return hex_fpr
897
898
899
class ForkingMixInWithPipe(socketserver.ForkingMixIn, object):
900
"""Like socketserver.ForkingMixIn, but also pass a pipe."""
901
def process_request(self, request, client_address):
902
"""Overrides and wraps the original process_request().
903
904
This function creates a new pipe in self.pipe
905
"""
906
self.pipe = os.pipe()
907
super(ForkingMixInWithPipe,
908
self).process_request(request, client_address)
909
os.close(self.pipe[1]) # close write end
910
self.add_pipe(self.pipe[0])
911
def add_pipe(self, pipe):
912
"""Dummy function; override as necessary"""
913
os.close(pipe)
914
915
916
class IPv6_TCPServer(ForkingMixInWithPipe,
917
socketserver.TCPServer, object):
918
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
919
642
session = (gnutls.connection
643
.ClientSession(self.request,
644
gnutls.connection
645
.X509Credentials()))
646
647
line = self.request.makefile().readline()
648
logger.debug(u"Protocol version: %r", line)
649
try:
650
if int(line.strip().split()[0]) > 1:
651
raise RuntimeError
652
except (ValueError, IndexError, RuntimeError), error:
653
logger.error(u"Unknown protocol version: %s", error)
654
return
655
656
# Note: gnutls.connection.X509Credentials is really a generic
657
# GnuTLS certificate credentials object so long as no X.509
658
# keys are added to it. Therefore, we can use it here despite
659
# using OpenPGP certificates.
660
661
#priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
662
# "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
663
# "+DHE-DSS"))
664
# Use a fallback default, since this MUST be set.
665
priority = self.server.settings.get("priority", "NORMAL")
666
(gnutls.library.functions
667
.gnutls_priority_set_direct(session._c_object,
668
priority, None))
669
670
try:
671
session.handshake()
672
except gnutls.errors.GNUTLSError, error:
673
logger.warning(u"Handshake failed: %s", error)
674
# Do not run session.bye() here: the session is not
675
# established. Just abandon the request.
676
return
677
try:
678
fpr = fingerprint(peer_certificate(session))
679
except (TypeError, gnutls.errors.GNUTLSError), error:
680
logger.warning(u"Bad certificate: %s", error)
681
session.bye()
682
return
683
logger.debug(u"Fingerprint: %s", fpr)
684
for c in self.server.clients:
685
if c.fingerprint == fpr:
686
client = c
687
break
688
else:
689
logger.warning(u"Client not found for fingerprint: %s",
690
fpr)
691
session.bye()
692
return
693
# Have to check if client.still_valid(), since it is possible
694
# that the client timed out while establishing the GnuTLS
695
# session.
696
if not client.still_valid():
697
logger.warning(u"Client %(name)s is invalid",
698
vars(client))
699
session.bye()
700
return
701
## This won't work here, since we're in a fork.
702
# client.bump_timeout()
703
sent_size = 0
704
while sent_size < len(client.secret):
705
sent = session.send(client.secret[sent_size:])
706
logger.debug(u"Sent: %d, remaining: %d",
707
sent, len(client.secret)
708
- (sent_size + sent))
709
sent_size += sent
710
session.bye()
711
712
713
class IPv6_TCPServer(SocketServer.ForkingMixIn,
714
SocketServer.TCPServer, object):
715
"""IPv6 TCP server. Accepts 'None' as address and/or port.
920
716
Attributes:
717
settings: Server settings
718
clients: Set() of Client objects
921
719
enabled: Boolean; whether this server is activated yet
922
interface: None or a network interface name (string)
923
use_ipv6: Boolean; to use IPv6 or not
924
720
"""
925
def __init__(self, server_address, RequestHandlerClass,
926
interface=None, use_ipv6=True):
927
self.interface = interface
928
if use_ipv6:
929
self.address_family = socket.AF_INET6
930
socketserver.TCPServer.__init__(self, server_address,
931
RequestHandlerClass)
721
address_family = socket.AF_INET6
722
def __init__(self, *args, **kwargs):
723
if "settings" in kwargs:
724
self.settings = kwargs["settings"]
725
del kwargs["settings"]
726
if "clients" in kwargs:
727
self.clients = kwargs["clients"]
728
del kwargs["clients"]
729
self.enabled = False
730
super(IPv6_TCPServer, self).__init__(*args, **kwargs)
932
731
def server_bind(self):
933
732
"""This overrides the normal server_bind() function
934
733
to bind to an interface if one was specified, and also NOT to
935
734
bind to an address or port if they were not specified."""
936
if self.interface is not None:
937
if SO_BINDTODEVICE is None:
938
logger.error(u"SO_BINDTODEVICE does not exist;"
939
u" cannot bind to interface %s",
940
self.interface)
941
else:
942
try:
943
self.socket.setsockopt(socket.SOL_SOCKET,
944
SO_BINDTODEVICE,
945
str(self.interface
946
+ u'\0'))
947
except socket.error, error:
948
if error[0] == errno.EPERM:
949
logger.error(u"No permission to"
950
u" bind to interface %s",
951
self.interface)
952
elif error[0] == errno.ENOPROTOOPT:
953
logger.error(u"SO_BINDTODEVICE not available;"
954
u" cannot bind to interface %s",
955
self.interface)
956
else:
957
raise
735
if self.settings["interface"]:
736
# 25 is from /usr/include/asm-i486/socket.h
737
SO_BINDTODEVICE = getattr(socket, "SO_BINDTODEVICE", 25)
738
try:
739
self.socket.setsockopt(socket.SOL_SOCKET,
740
SO_BINDTODEVICE,
741
self.settings["interface"])
742
except socket.error, error:
743
if error[0] == errno.EPERM:
744
logger.error(u"No permission to"
745
u" bind to interface %s",
746
self.settings["interface"])
747
else:
748
raise error
958
749
# Only bind(2) the socket if we really need to.
959
750
if self.server_address[0] or self.server_address[1]:
960
751
if not self.server_address[0]:
961
if self.address_family == socket.AF_INET6:
962
any_address = u"::" # in6addr_any
963
else:
964
any_address = socket.INADDR_ANY
965
self.server_address = (any_address,
752
in6addr_any = "::"
753
self.server_address = (in6addr_any,
966
754
self.server_address[1])
967
755
elif not self.server_address[1]:
968
756
self.server_address = (self.server_address[0],
969
757
0)
970
# if self.interface:
758
# if self.settings["interface"]:
971
759
# self.server_address = (self.server_address[0],
972
760
# 0, # port
973
761
# 0, # flowinfo
974
762
# if_nametoindex
975
# (self.interface))
976
return socketserver.TCPServer.server_bind(self)
977
978
979
class MandosServer(IPv6_TCPServer):
980
"""Mandos server.
981
982
Attributes:
983
clients: set of Client objects
984
gnutls_priority GnuTLS priority string
985
use_dbus: Boolean; to emit D-Bus signals or not
986
clients: set of Client objects
987
gnutls_priority GnuTLS priority string
988
use_dbus: Boolean; to emit D-Bus signals or not
989
990
Assumes a gobject.MainLoop event loop.
991
"""
992
def __init__(self, server_address, RequestHandlerClass,
993
interface=None, use_ipv6=True, clients=None,
994
gnutls_priority=None, use_dbus=True):
995
self.enabled = False
996
self.clients = clients
997
if self.clients is None:
998
self.clients = set()
999
self.use_dbus = use_dbus
1000
self.gnutls_priority = gnutls_priority
1001
IPv6_TCPServer.__init__(self, server_address,
1002
RequestHandlerClass,
1003
interface = interface,
1004
use_ipv6 = use_ipv6)
763
# (self.settings
764
# ["interface"]))
765
return super(IPv6_TCPServer, self).server_bind()
1005
766
def server_activate(self):
1006
767
if self.enabled:
1007
return socketserver.TCPServer.server_activate(self)
768
return super(IPv6_TCPServer, self).server_activate()
1008
769
def enable(self):
1009
770
self.enabled = True
1010
def add_pipe(self, pipe):
1011
# Call "handle_ipc" for both data and EOF events
1012
gobject.io_add_watch(pipe, gobject.IO_IN | gobject.IO_HUP,
1013
self.handle_ipc)
1014
def handle_ipc(self, source, condition, file_objects={}):
1015
condition_names = {
1016
gobject.IO_IN: u"IN", # There is data to read.
1017
gobject.IO_OUT: u"OUT", # Data can be written (without
1018
# blocking).
1019
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1020
gobject.IO_ERR: u"ERR", # Error condition.
1021
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1022
# broken, usually for pipes and
1023
# sockets).
1024
}
1025
conditions_string = ' | '.join(name
1026
for cond, name in
1027
condition_names.iteritems()
1028
if cond & condition)
1029
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1030
conditions_string)
1031
1032
# Turn the pipe file descriptor into a Python file object
1033
if source not in file_objects:
1034
file_objects[source] = os.fdopen(source, u"r", 1)
1035
1036
# Read a line from the file object
1037
cmdline = file_objects[source].readline()
1038
if not cmdline: # Empty line means end of file
1039
# close the IPC pipe
1040
file_objects[source].close()
1041
del file_objects[source]
1042
1043
# Stop calling this function
1044
return False
1045
1046
logger.debug(u"IPC command: %r", cmdline)
1047
1048
# Parse and act on command
1049
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1050
1051
if cmd == u"NOTFOUND":
1052
logger.warning(u"Client not found for fingerprint: %s",
1053
args)
1054
if self.use_dbus:
1055
# Emit D-Bus signal
1056
mandos_dbus_service.ClientNotFound(args)
1057
elif cmd == u"INVALID":
1058
for client in self.clients:
1059
if client.name == args:
1060
logger.warning(u"Client %s is invalid", args)
1061
if self.use_dbus:
1062
# Emit D-Bus signal
1063
client.Rejected()
1064
break
1065
else:
1066
logger.error(u"Unknown client %s is invalid", args)
1067
elif cmd == u"SENDING":
1068
for client in self.clients:
1069
if client.name == args:
1070
logger.info(u"Sending secret to %s", client.name)
1071
client.checked_ok()
1072
if self.use_dbus:
1073
# Emit D-Bus signal
1074
client.ReceivedSecret()
1075
break
1076
else:
1077
logger.error(u"Sending secret to unknown client %s",
1078
args)
1079
else:
1080
logger.error(u"Unknown IPC command: %r", cmdline)
1081
1082
# Keep calling this function
1083
return True
1084
771
1085
772
1086
773
def string_to_delta(interval):
1087
774
"""Parse a string and return a datetime.timedelta
1088
1089
>>> string_to_delta(u'7d')
775
776
>>> string_to_delta('7d')
1090
777
datetime.timedelta(7)
1091
>>> string_to_delta(u'60s')
778
>>> string_to_delta('60s')
1092
779
datetime.timedelta(0, 60)
1093
>>> string_to_delta(u'60m')
780
>>> string_to_delta('60m')
1094
781
datetime.timedelta(0, 3600)
1095
>>> string_to_delta(u'24h')
782
>>> string_to_delta('24h')
1096
783
datetime.timedelta(1)
1097
784
>>> string_to_delta(u'1w')
1098
785
datetime.timedelta(7)
1099
>>> string_to_delta(u'5m 30s')
786
>>> string_to_delta('5m 30s')
1100
787
datetime.timedelta(0, 330)
1101
788
"""
1102
789
timevalue = datetime.timedelta(0)
1122
809
return timevalue
1123
810
1124
811
812
def server_state_changed(state):
813
"""Derived from the Avahi example code"""
814
if state == avahi.SERVER_COLLISION:
815
logger.error(u"Zeroconf server name collision")
816
service.remove()
817
elif state == avahi.SERVER_RUNNING:
818
service.add()
819
820
821
def entry_group_state_changed(state, error):
822
"""Derived from the Avahi example code"""
823
logger.debug(u"Avahi state change: %i", state)
824
825
if state == avahi.ENTRY_GROUP_ESTABLISHED:
826
logger.debug(u"Zeroconf service established.")
827
elif state == avahi.ENTRY_GROUP_COLLISION:
828
logger.warning(u"Zeroconf service name collision.")
829
service.rename()
830
elif state == avahi.ENTRY_GROUP_FAILURE:
831
logger.critical(u"Avahi: Error in group state changed %s",
832
unicode(error))
833
raise AvahiGroupError("State changed: %s", str(error))
834
1125
835
def if_nametoindex(interface):
1126
"""Call the C function if_nametoindex(), or equivalent
1127
1128
Note: This function cannot accept a unicode string."""
836
"""Call the C function if_nametoindex(), or equivalent"""
1129
837
global if_nametoindex
1130
838
try:
1131
839
if_nametoindex = (ctypes.cdll.LoadLibrary
1132
(ctypes.util.find_library(u"c"))
840
(ctypes.util.find_library("c"))
1133
841
.if_nametoindex)
1134
842
except (OSError, AttributeError):
1135
logger.warning(u"Doing if_nametoindex the hard way")
843
if "struct" not in sys.modules:
844
import struct
845
if "fcntl" not in sys.modules:
846
import fcntl
1136
847
def if_nametoindex(interface):
1137
848
"Get an interface index the hard way, i.e. using fcntl()"
1138
849
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1139
850
with closing(socket.socket()) as s:
1140
851
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1141
struct.pack(str(u"16s16x"),
1142
interface))
1143
interface_index = struct.unpack(str(u"I"),
1144
ifreq[16:20])[0]
852
struct.pack("16s16x", interface))
853
interface_index = struct.unpack("I", ifreq[16:20])[0]
1145
854
return interface_index
1146
855
return if_nametoindex(interface)
1147
856
1148
857
1149
858
def daemon(nochdir = False, noclose = False):
1150
859
"""See daemon(3). Standard BSD Unix function.
1151
1152
860
This should really exist as os.daemon, but it doesn't (yet)."""
1153
861
if os.fork():
1154
862
sys.exit()
1155
863
os.setsid()
1156
864
if not nochdir:
1157
os.chdir(u"/")
865
os.chdir("/")
1158
866
if os.fork():
1159
867
sys.exit()
1160
868
if not noclose:
1162
870
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1163
871
if not stat.S_ISCHR(os.fstat(null).st_mode):
1164
872
raise OSError(errno.ENODEV,
1165
u"/dev/null not a character device")
873
"/dev/null not a character device")
1166
874
os.dup2(null, sys.stdin.fileno())
1167
875
os.dup2(null, sys.stdout.fileno())
1168
876
os.dup2(null, sys.stderr.fileno())
1171
879
1172
880
1173
881
def main():
1174
1175
######################################################################
1176
# Parsing of options, both command line and config file
1177
1178
parser = optparse.OptionParser(version = "%%prog %s" % version)
1179
parser.add_option("-i", u"--interface", type=u"string",
1180
metavar="IF", help=u"Bind to interface IF")
1181
parser.add_option("-a", u"--address", type=u"string",
1182
help=u"Address to listen for requests on")
1183
parser.add_option("-p", u"--port", type=u"int",
1184
help=u"Port number to receive requests on")
1185
parser.add_option("--check", action=u"store_true",
1186
help=u"Run self-test")
1187
parser.add_option("--debug", action=u"store_true",
1188
help=u"Debug mode; run in foreground and log to"
1189
u" terminal")
1190
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1191
u" priority string (see GnuTLS documentation)")
1192
parser.add_option("--servicename", type=u"string",
1193
metavar=u"NAME", help=u"Zeroconf service name")
1194
parser.add_option("--configdir", type=u"string",
1195
default=u"/etc/mandos", metavar=u"DIR",
1196
help=u"Directory to search for configuration"
1197
u" files")
1198
parser.add_option("--no-dbus", action=u"store_false",
1199
dest=u"use_dbus", help=u"Do not provide D-Bus"
1200
u" system bus interface")
1201
parser.add_option("--no-ipv6", action=u"store_false",
1202
dest=u"use_ipv6", help=u"Do not use IPv6")
882
parser = OptionParser(version = "%%prog %s" % version)
883
parser.add_option("-i", "--interface", type="string",
884
metavar="IF", help="Bind to interface IF")
885
parser.add_option("-a", "--address", type="string",
886
help="Address to listen for requests on")
887
parser.add_option("-p", "--port", type="int",
888
help="Port number to receive requests on")
889
parser.add_option("--check", action="store_true", default=False,
890
help="Run self-test")
891
parser.add_option("--debug", action="store_true",
892
help="Debug mode; run in foreground and log to"
893
" terminal")
894
parser.add_option("--priority", type="string", help="GnuTLS"
895
" priority string (see GnuTLS documentation)")
896
parser.add_option("--servicename", type="string", metavar="NAME",
897
help="Zeroconf service name")
898
parser.add_option("--configdir", type="string",
899
default="/etc/mandos", metavar="DIR",
900
help="Directory to search for configuration"
901
" files")
1203
902
options = parser.parse_args()[0]
1204
903
1205
904
if options.check:
1208
907
sys.exit()
1209
908
1210
909
# Default values for config file for server-global settings
1211
server_defaults = { u"interface": u"",
1212
u"address": u"",
1213
u"port": u"",
1214
u"debug": u"False",
1215
u"priority":
1216
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1217
u"servicename": u"Mandos",
1218
u"use_dbus": u"True",
1219
u"use_ipv6": u"True",
910
server_defaults = { "interface": "",
911
"address": "",
912
"port": "",
913
"debug": "False",
914
"priority":
915
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
916
"servicename": "Mandos",
1220
917
}
1221
918
1222
919
# Parse config file for server-global settings
1223
server_config = configparser.SafeConfigParser(server_defaults)
920
server_config = ConfigParser.SafeConfigParser(server_defaults)
1224
921
del server_defaults
1225
server_config.read(os.path.join(options.configdir,
1226
u"mandos.conf"))
922
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1227
923
# Convert the SafeConfigParser object to a dict
1228
924
server_settings = server_config.defaults()
1229
# Use the appropriate methods on the non-string config options
1230
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1231
server_settings[option] = server_config.getboolean(u"DEFAULT",
1232
option)
1233
if server_settings["port"]:
1234
server_settings["port"] = server_config.getint(u"DEFAULT",
1235
u"port")
925
# Use getboolean on the boolean config option
926
server_settings["debug"] = (server_config.getboolean
927
("DEFAULT", "debug"))
1236
928
del server_config
1237
929
1238
930
# Override the settings from the config file with command line
1239
931
# options, if set.
1240
for option in (u"interface", u"address", u"port", u"debug",
1241
u"priority", u"servicename", u"configdir",
1242
u"use_dbus", u"use_ipv6"):
932
for option in ("interface", "address", "port", "debug",
933
"priority", "servicename", "configdir"):
1243
934
value = getattr(options, option)
1244
935
if value is not None:
1245
936
server_settings[option] = value
1246
937
del options
1247
# Force all strings to be unicode
1248
for option in server_settings.keys():
1249
if type(server_settings[option]) is str:
1250
server_settings[option] = unicode(server_settings[option])
1251
938
# Now we have our good server settings in "server_settings"
1252
939
1253
##################################################################
1254
1255
# For convenience
1256
debug = server_settings[u"debug"]
1257
use_dbus = server_settings[u"use_dbus"]
1258
use_ipv6 = server_settings[u"use_ipv6"]
940
debug = server_settings["debug"]
1259
941
1260
942
if not debug:
1261
943
syslogger.setLevel(logging.WARNING)
1262
944
console.setLevel(logging.WARNING)
1263
945
1264
if server_settings[u"servicename"] != u"Mandos":
946
if server_settings["servicename"] != "Mandos":
1265
947
syslogger.setFormatter(logging.Formatter
1266
(u'Mandos (%s) [%%(process)d]:'
1267
u' %%(levelname)s: %%(message)s'
1268
% server_settings[u"servicename"]))
948
('Mandos (%s): %%(levelname)s:'
949
' %%(message)s'
950
% server_settings["servicename"]))
1269
951
1270
952
# Parse config file with clients
1271
client_defaults = { u"timeout": u"1h",
1272
u"interval": u"5m",
1273
u"checker": u"fping -q -- %%(host)s",
1274
u"host": u"",
953
client_defaults = { "timeout": "1h",
954
"interval": "5m",
955
"checker": "fping -q -- %(host)s",
956
"host": "",
1275
957
}
1276
client_config = configparser.SafeConfigParser(client_defaults)
1277
client_config.read(os.path.join(server_settings[u"configdir"],
1278
u"clients.conf"))
1279
1280
global mandos_dbus_service
1281
mandos_dbus_service = None
1282
1283
tcp_server = MandosServer((server_settings[u"address"],
1284
server_settings[u"port"]),
1285
ClientHandler,
1286
interface=server_settings[u"interface"],
1287
use_ipv6=use_ipv6,
1288
gnutls_priority=
1289
server_settings[u"priority"],
1290
use_dbus=use_dbus)
1291
pidfilename = u"/var/run/mandos.pid"
1292
try:
1293
pidfile = open(pidfilename, u"w")
1294
except IOError:
1295
logger.error(u"Could not open file %r", pidfilename)
1296
1297
try:
1298
uid = pwd.getpwnam(u"_mandos").pw_uid
1299
gid = pwd.getpwnam(u"_mandos").pw_gid
1300
except KeyError:
1301
try:
1302
uid = pwd.getpwnam(u"mandos").pw_uid
1303
gid = pwd.getpwnam(u"mandos").pw_gid
1304
except KeyError:
1305
try:
1306
uid = pwd.getpwnam(u"nobody").pw_uid
1307
gid = pwd.getpwnam(u"nobody").pw_gid
1308
except KeyError:
1309
uid = 65534
1310
gid = 65534
1311
try:
958
client_config = ConfigParser.SafeConfigParser(client_defaults)
959
client_config.read(os.path.join(server_settings["configdir"],
960
"clients.conf"))
961
962
clients = Set()
963
tcp_server = IPv6_TCPServer((server_settings["address"],
964
server_settings["port"]),
965
TCP_handler,
966
settings=server_settings,
967
clients=clients)
968
pidfilename = "/var/run/mandos.pid"
969
try:
970
pidfile = open(pidfilename, "w")
971
except IOError, error:
972
logger.error("Could not open file %r", pidfilename)
973
974
uid = 65534
975
gid = 65534
976
try:
977
uid = pwd.getpwnam("mandos").pw_uid
978
except KeyError:
979
try:
980
uid = pwd.getpwnam("nobody").pw_uid
981
except KeyError:
982
pass
983
try:
984
gid = pwd.getpwnam("mandos").pw_gid
985
except KeyError:
986
try:
987
gid = pwd.getpwnam("nogroup").pw_gid
988
except KeyError:
989
pass
990
try:
991
os.setuid(uid)
1312
992
os.setgid(gid)
1313
os.setuid(uid)
1314
993
except OSError, error:
1315
994
if error[0] != errno.EPERM:
1316
995
raise error
1317
996
1318
# Enable all possible GnuTLS debugging
1319
if debug:
1320
# "Use a log level over 10 to enable all debugging options."
1321
# - GnuTLS manual
1322
gnutls.library.functions.gnutls_global_set_log_level(11)
1323
1324
@gnutls.library.types.gnutls_log_func
1325
def debug_gnutls(level, string):
1326
logger.debug(u"GnuTLS: %s", string[:-1])
1327
1328
(gnutls.library.functions
1329
.gnutls_global_set_log_function(debug_gnutls))
997
global service
998
service = AvahiService(name = server_settings["servicename"],
999
servicetype = "_mandos._tcp", )
1000
if server_settings["interface"]:
1001
service.interface = (if_nametoindex
1002
(server_settings["interface"]))
1330
1003
1331
1004
global main_loop
1005
global bus
1006
global server
1332
1007
# From the Avahi example code
1333
1008
DBusGMainLoop(set_as_default=True )
1334
1009
main_loop = gobject.MainLoop()
1335
1010
bus = dbus.SystemBus()
1011
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
1012
avahi.DBUS_PATH_SERVER),
1013
avahi.DBUS_INTERFACE_SERVER)
1336
1014
# End of Avahi example code
1337
if use_dbus:
1338
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos", bus)
1339
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1340
service = AvahiService(name = server_settings[u"servicename"],
1341
servicetype = u"_mandos._tcp",
1342
protocol = protocol, bus = bus)
1343
if server_settings["interface"]:
1344
service.interface = (if_nametoindex
1345
(str(server_settings[u"interface"])))
1346
1347
client_class = Client
1348
if use_dbus:
1349
client_class = functools.partial(ClientDBus, bus = bus)
1350
tcp_server.clients.update(set(
1351
client_class(name = section,
1352
config= dict(client_config.items(section)))
1353
for section in client_config.sections()))
1354
if not tcp_server.clients:
1355
logger.warning(u"No clients defined")
1015
bus_name = dbus.service.BusName(u"org.mandos-system.Mandos", bus)
1016
1017
def remove_from_clients(client):
1018
clients.remove(client)
1019
if not clients:
1020
logger.critical(u"No clients left, exiting")
1021
sys.exit()
1022
1023
clients.update(Set(Client(name = section,
1024
stop_hook = remove_from_clients,
1025
config
1026
= dict(client_config.items(section)))
1027
for section in client_config.sections()))
1028
if not clients:
1029
logger.critical(u"No clients defined")
1030
sys.exit(1)
1356
1031
1357
1032
if debug:
1358
1033
# Redirect stdin so all checkers get /dev/null
1367
1042
daemon()
1368
1043
1369
1044
try:
1370
with closing(pidfile):
1371
pid = os.getpid()
1372
pidfile.write(str(pid) + "\n")
1045
pid = os.getpid()
1046
pidfile.write(str(pid) + "\n")
1047
pidfile.close()
1373
1048
del pidfile
1374
1049
except IOError:
1375
1050
logger.error(u"Could not write to file %r with PID %d",
1381
1056
1382
1057
def cleanup():
1383
1058
"Cleanup function; run on exit"
1384
service.cleanup()
1059
global group
1060
# From the Avahi example code
1061
if not group is None:
1062
group.Free()
1063
group = None
1064
# End of Avahi example code
1385
1065
1386
while tcp_server.clients:
1387
client = tcp_server.clients.pop()
1388
client.disable_hook = None
1389
client.disable()
1066
while clients:
1067
client = clients.pop()
1068
client.stop_hook = None
1069
client.stop()
1390
1070
1391
1071
atexit.register(cleanup)
1392
1072
1395
1075
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1396
1076
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1397
1077
1398
if use_dbus:
1399
class MandosDBusService(dbus.service.Object):
1400
"""A D-Bus proxy object"""
1401
def __init__(self):
1402
dbus.service.Object.__init__(self, bus, u"/")
1403
_interface = u"se.bsnet.fukt.Mandos"
1404
1405
@dbus.service.signal(_interface, signature=u"oa{sv}")
1406
def ClientAdded(self, objpath, properties):
1407
"D-Bus signal"
1408
pass
1409
1410
@dbus.service.signal(_interface, signature=u"s")
1411
def ClientNotFound(self, fingerprint):
1412
"D-Bus signal"
1413
pass
1414
1415
@dbus.service.signal(_interface, signature=u"os")
1416
def ClientRemoved(self, objpath, name):
1417
"D-Bus signal"
1418
pass
1419
1420
@dbus.service.method(_interface, out_signature=u"ao")
1421
def GetAllClients(self):
1422
"D-Bus method"
1423
return dbus.Array(c.dbus_object_path
1424
for c in tcp_server.clients)
1425
1426
@dbus.service.method(_interface,
1427
out_signature=u"a{oa{sv}}")
1428
def GetAllClientsWithProperties(self):
1429
"D-Bus method"
1430
return dbus.Dictionary(
1431
((c.dbus_object_path, c.GetAllProperties())
1432
for c in tcp_server.clients),
1433
signature=u"oa{sv}")
1434
1435
@dbus.service.method(_interface, in_signature=u"o")
1436
def RemoveClient(self, object_path):
1437
"D-Bus method"
1438
for c in tcp_server.clients:
1439
if c.dbus_object_path == object_path:
1440
tcp_server.clients.remove(c)
1441
c.remove_from_connection()
1442
# Don't signal anything except ClientRemoved
1443
c.disable(signal=False)
1444
# Emit D-Bus signal
1445
self.ClientRemoved(object_path, c.name)
1446
return
1447
raise KeyError
1448
1449
del _interface
1450
1451
mandos_dbus_service = MandosDBusService()
1452
1453
for client in tcp_server.clients:
1454
if use_dbus:
1455
# Emit D-Bus signal
1456
mandos_dbus_service.ClientAdded(client.dbus_object_path,
1457
client.GetAllProperties())
1458
client.enable()
1078
for client in clients:
1079
client.start()
1459
1080
1460
1081
tcp_server.enable()
1461
1082
tcp_server.server_activate()
1462
1083
1463
1084
# Find out what port we got
1464
1085
service.port = tcp_server.socket.getsockname()[1]
1465
if use_ipv6:
1466
logger.info(u"Now listening on address %r, port %d,"
1467
" flowinfo %d, scope_id %d"
1468
% tcp_server.socket.getsockname())
1469
else: # IPv4
1470
logger.info(u"Now listening on address %r, port %d"
1471
% tcp_server.socket.getsockname())
1086
logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
1087
u" scope_id %d" % tcp_server.socket.getsockname())
1472
1088
1473
1089
#service.interface = tcp_server.socket.getsockname()[3]
1474
1090
1475
1091
try:
1476
1092
# From the Avahi example code
1093
server.connect_to_signal("StateChanged", server_state_changed)
1477
1094
try:
1478
service.activate()
1095
server_state_changed(server.GetState())
1479
1096
except dbus.exceptions.DBusException, error:
1480
1097
logger.critical(u"DBusException: %s", error)
1481
1098
sys.exit(1)
1489
1106
logger.debug(u"Starting main loop")
1490
1107
main_loop.run()
1491
1108
except AvahiError, error:
1492
logger.critical(u"AvahiError: %s", error)
1109
logger.critical(u"AvahiError: %s" + unicode(error))
1493
1110
sys.exit(1)
1494
1111
except KeyboardInterrupt:
1495
1112
if debug:
1496
print >> sys.stderr
1497
logger.debug(u"Server received KeyboardInterrupt")
1498
logger.debug(u"Server exiting")
1113
print
1499
1114
1500
1115
if __name__ == '__main__':
1501
1116
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0