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- Committer: Teddy Hogeborn
- Date: 2008-08-04 20:43:31 UTC
- mfrom: (24.1.17 mandos)
- Revision ID: teddy@fukt.bsnet.se-20080804204331-zgu42g8ii997h1l2
* ca.pem: Removed.
* cert.pem: - '' -
* client-cert.pem: - '' -
* client-key.pem: - '' -
* crl.pem: - '' -
* key.pem: - '' -
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
to be a union. All users changed.
* server.py: Changed log severity for many log messages.
(Client.__init__): Take all config file settins as a dict instead of
as keyword arguments.
* cert.pem: - '' -
* client-cert.pem: - '' -
* client-key.pem: - '' -
* crl.pem: - '' -
* key.pem: - '' -
* plugins.d/mandosclient.c (start_mandos_communication): Change "to"
to be a union. All users changed.
* server.py: Changed log severity for many log messages.
(Client.__init__): Take all config file settins as a dict instead of
as keyword arguments.
- files removed:
- .bzr-builddeb
- debian
- debian/po
- files renamed:
- plugin-runner.c => plugbasedclient.c
- plugins.d/mandos-client.c => plugins.d/mandosclient.c
- plugins.d/password-prompt.c => plugins.d/passprompt.c
- mandos.conf => server.conf
- mandos => server.py
- files modified:
- Makefile
added
removed
server.py
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".
9
# following functions: "AvahiService.add", "AvahiService.remove",
10
# "server_state_changed", "entry_group_state_changed", and some lines
11
# in "main".
12
12
#
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13
# Everything else is
14
# Copyright © 2008,2009 Teddy Hogeborn
15
# Copyright © 2008,2009 Björn Påhlsson
14
# Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
16
15
#
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# This program is free software: you can redistribute it and/or modify
18
17
# it under the terms of the GNU General Public License as published by
25
24
# GNU General Public License for more details.
26
25
#
27
26
# You should have received a copy of the GNU General Public License
28
# along with this program. If not, see
29
# <http://www.gnu.org/licenses/>.
27
# along with this program. If not, see <http://www.gnu.org/licenses/>.
30
28
#
31
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# Contact the authors at <mandos@fukt.bsnet.se>.
32
30
#
33
31
34
from __future__ import division, with_statement, absolute_import
32
from __future__ import division
35
33
36
import SocketServer as socketserver
34
import SocketServer
37
35
import socket
38
import optparse
36
import select
37
from optparse import OptionParser
39
38
import datetime
40
39
import errno
41
40
import gnutls.crypto
44
43
import gnutls.library.functions
45
44
import gnutls.library.constants
46
45
import gnutls.library.types
47
import ConfigParser as configparser
46
import ConfigParser
48
47
import sys
49
48
import re
50
49
import os
51
50
import signal
51
from sets import Set
52
52
import subprocess
53
53
import atexit
54
54
import stat
55
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import logging
56
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import logging.handlers
57
import pwd
58
from contextlib import closing
59
import struct
60
import fcntl
61
import functools
62
57
63
58
import dbus
64
import dbus.service
65
59
import gobject
66
60
import avahi
67
61
from dbus.mainloop.glib import DBusGMainLoop
68
62
import ctypes
69
import ctypes.util
70
71
try:
72
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
73
except AttributeError:
74
try:
75
from IN import SO_BINDTODEVICE
76
except ImportError:
77
SO_BINDTODEVICE = None
78
79
80
version = "1.0.8"
81
82
logger = logging.Logger(u'mandos')
83
syslogger = (logging.handlers.SysLogHandler
84
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
85
address = "/dev/log"))
86
syslogger.setFormatter(logging.Formatter
87
(u'Mandos [%(process)d]: %(levelname)s:'
88
u' %(message)s'))
63
64
# Brief description of the operation of this program:
65
#
66
# This server announces itself as a Zeroconf service. Connecting
67
# clients use the TLS protocol, with the unusual quirk that this
68
# server program acts as a TLS "client" while a connecting client acts
69
# as a TLS "server". The client (acting as a TLS "server") must
70
# supply an OpenPGP certificate, and the fingerprint of this
71
# certificate is used by this server to look up (in a list read from a
72
# file at start time) which binary blob to give the client. No other
73
# authentication or authorization is done by this server.
74
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logger = logging.Logger('mandos')
77
syslogger = logging.handlers.SysLogHandler\
78
(facility = logging.handlers.SysLogHandler.LOG_DAEMON)
79
syslogger.setFormatter(logging.Formatter\
80
('%(levelname)s: %(message)s'))
89
81
logger.addHandler(syslogger)
82
del syslogger
90
83
91
console = logging.StreamHandler()
92
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
93
u' %(levelname)s:'
94
u' %(message)s'))
95
logger.addHandler(console)
96
84
97
85
class AvahiError(Exception):
98
def __init__(self, value, *args, **kwargs):
86
def __init__(self, value):
99
87
self.value = value
100
super(AvahiError, self).__init__(value, *args, **kwargs)
101
def __unicode__(self):
102
return unicode(repr(self.value))
88
def __str__(self):
89
return repr(self.value)
103
90
104
91
class AvahiServiceError(AvahiError):
105
92
pass
109
96
110
97
111
98
class AvahiService(object):
112
"""An Avahi (Zeroconf) service.
113
114
Attributes:
99
"""
115
100
interface: integer; avahi.IF_UNSPEC or an interface index.
116
101
Used to optionally bind to the specified interface.
117
name: string; Example: u'Mandos'
118
type: string; Example: u'_mandos._tcp'.
119
See <http://www.dns-sd.org/ServiceTypes.html>
120
port: integer; what port to announce
121
TXT: list of strings; TXT record for the service
122
domain: string; Domain to publish on, default to .local if empty.
123
host: string; Host to publish records for, default is localhost
124
max_renames: integer; maximum number of renames
125
rename_count: integer; counter so we only rename after collisions
126
a sensible number of times
127
group: D-Bus Entry Group
128
server: D-Bus Server
129
bus: dbus.SystemBus()
102
name = string; Example: "Mandos"
103
type = string; Example: "_mandos._tcp".
104
See <http://www.dns-sd.org/ServiceTypes.html>
105
port = integer; what port to announce
106
TXT = list of strings; TXT record for the service
107
domain = string; Domain to publish on, default to .local if empty.
108
host = string; Host to publish records for, default to localhost
109
if empty.
110
max_renames = integer; maximum number of renames
111
rename_count = integer; counter so we only rename after collisions
112
a sensible number of times
130
113
"""
131
114
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
132
servicetype = None, port = None, TXT = None,
133
domain = u"", host = u"", max_renames = 32768,
134
protocol = avahi.PROTO_UNSPEC, bus = None):
115
type = None, port = None, TXT = None, domain = "",
116
host = "", max_renames = 12):
117
"""An Avahi (Zeroconf) service. """
135
118
self.interface = interface
136
119
self.name = name
137
self.type = servicetype
120
self.type = type
138
121
self.port = port
139
self.TXT = TXT if TXT is not None else []
122
if TXT is None:
123
self.TXT = []
124
else:
125
self.TXT = TXT
140
126
self.domain = domain
141
127
self.host = host
142
128
self.rename_count = 0
143
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
129
def rename(self):
149
130
"""Derived from the Avahi example code"""
150
131
if self.rename_count >= self.max_renames:
151
logger.critical(u"No suitable Zeroconf service name found"
152
u" after %i retries, exiting.",
153
self.rename_count)
154
raise AvahiServiceError(u"Too many renames")
155
self.name = self.server.GetAlternativeServiceName(self.name)
156
logger.info(u"Changing Zeroconf service name to %r ...",
157
unicode(self.name))
158
syslogger.setFormatter(logging.Formatter
159
(u'Mandos (%s) [%%(process)d]:'
160
u' %%(levelname)s: %%(message)s'
161
% self.name))
132
logger.critical(u"No suitable service name found after %i"
133
u" retries, exiting.", rename_count)
134
raise AvahiServiceError("Too many renames")
135
name = server.GetAlternativeServiceName(name)
136
logger.error(u"Changing name to %r ...", name)
162
137
self.remove()
163
138
self.add()
164
139
self.rename_count += 1
165
140
def remove(self):
166
141
"""Derived from the Avahi example code"""
167
if self.group is not None:
168
self.group.Reset()
142
if group is not None:
143
group.Reset()
169
144
def add(self):
170
145
"""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)
178
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())
146
global group
147
if group is None:
148
group = dbus.Interface\
149
(bus.get_object(avahi.DBUS_NAME,
150
server.EntryGroupNew()),
151
avahi.DBUS_INTERFACE_ENTRY_GROUP)
152
group.connect_to_signal('StateChanged',
153
entry_group_state_changed)
154
logger.debug(u"Adding service '%s' of type '%s' ...",
155
service.name, service.type)
156
group.AddService(
157
self.interface, # interface
158
avahi.PROTO_INET6, # protocol
159
dbus.UInt32(0), # flags
160
self.name, self.type,
161
self.domain, self.host,
162
dbus.UInt16(self.port),
163
avahi.string_array_to_txt_array(self.TXT))
164
group.Commit()
165
166
# From the Avahi example code:
167
group = None # our entry group
168
# End of Avahi example code
225
169
226
170
227
171
class Client(object):
228
172
"""A representation of a client host served by this server.
229
230
173
Attributes:
231
name: string; from the config file, used in log messages and
232
D-Bus identifiers
174
name: string; from the config file, used in log messages
233
175
fingerprint: string (40 or 32 hexadecimal digits); used to
234
176
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()
240
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.
177
secret: bytestring; sent verbatim (over TLS) to client
178
fqdn: string (FQDN); available for use by the checker command
179
created: datetime.datetime(); object creation, not client host
180
last_checked_ok: datetime.datetime() or None if not yet checked OK
181
timeout: datetime.timedelta(); How long from last_checked_ok
182
until this client is invalid
183
interval: datetime.timedelta(); How often to start a new checker
184
stop_hook: If set, called by stop() as stop_hook(self)
185
checker: subprocess.Popen(); a running checker process used
186
to see if the client lives.
187
'None' if no process is running.
248
188
checker_initiator_tag: a gobject event source tag, or None
249
disable_initiator_tag: - '' -
189
stop_initiator_tag: - '' -
250
190
checker_callback_tag: - '' -
251
191
checker_command: string; External command which is run to check if
252
192
client lives. %() expansions are done at
253
193
runtime with vars(self) as dict, so that for
254
194
instance %(name)s can be used in the command.
255
current_checker_command: string; current running checker_command
195
Private attibutes:
196
_timeout: Real variable for 'timeout'
197
_interval: Real variable for 'interval'
198
_timeout_milliseconds: Used when calling gobject.timeout_add()
199
_interval_milliseconds: - '' -
256
200
"""
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):
274
"""Note: the 'checker' key in 'config' sets the
275
'checker_command' attribute and *not* the 'checker'
276
attribute."""
201
def _set_timeout(self, timeout):
202
"Setter function for 'timeout' attribute"
203
self._timeout = timeout
204
self._timeout_milliseconds = ((self.timeout.days
205
* 24 * 60 * 60 * 1000)
206
+ (self.timeout.seconds * 1000)
207
+ (self.timeout.microseconds
208
// 1000))
209
timeout = property(lambda self: self._timeout,
210
_set_timeout)
211
del _set_timeout
212
def _set_interval(self, interval):
213
"Setter function for 'interval' attribute"
214
self._interval = interval
215
self._interval_milliseconds = ((self.interval.days
216
* 24 * 60 * 60 * 1000)
217
+ (self.interval.seconds
218
* 1000)
219
+ (self.interval.microseconds
220
// 1000))
221
interval = property(lambda self: self._interval,
222
_set_interval)
223
del _set_interval
224
def __init__(self, name = None, stop_hook=None, config={}):
225
"""Note: the 'checker' argument sets the 'checker_command'
226
attribute and not the 'checker' attribute.."""
277
227
self.name = name
278
if config is None:
279
config = {}
280
228
logger.debug(u"Creating client %r", self.name)
281
# Uppercase and remove spaces from fingerprint for later
282
# comparison purposes with return value from the fingerprint()
283
# function
284
self.fingerprint = (config[u"fingerprint"].upper()
285
.replace(u" ", u""))
229
# Uppercase and remove spaces from fingerprint
230
# for later comparison purposes with return value of
231
# the fingerprint() function
232
self.fingerprint = config["fingerprint"].upper()\
233
.replace(u" ", u"")
286
234
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:
290
with closing(open(os.path.expanduser
291
(os.path.expandvars
292
(config[u"secfile"])))) as secfile:
293
self.secret = secfile.read()
235
if "secret" in config:
236
self.secret = config["secret"].decode(u"base64")
237
elif "secfile" in config:
238
sf = open(config["secfile"])
239
self.secret = sf.read()
240
sf.close()
294
241
else:
295
242
raise TypeError(u"No secret or secfile for client %s"
296
243
% self.name)
297
self.host = config.get(u"host", u"")
298
self.created = datetime.datetime.utcnow()
299
self.enabled = False
300
self.last_enabled = None
244
self.fqdn = config.get("fqdn", "")
245
self.created = datetime.datetime.now()
301
246
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
247
self.timeout = string_to_delta(config["timeout"])
248
self.interval = string_to_delta(config["interval"])
249
self.stop_hook = stop_hook
305
250
self.checker = None
306
251
self.checker_initiator_tag = None
307
self.disable_initiator_tag = None
252
self.stop_initiator_tag = None
308
253
self.checker_callback_tag = None
309
self.checker_command = config[u"checker"]
310
self.current_checker_command = None
311
self.last_connect = None
312
313
def enable(self):
254
self.check_command = config["checker"]
255
def start(self):
314
256
"""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()
319
257
# Schedule a new checker to be started an 'interval' from now,
320
258
# and every interval from then on.
321
self.checker_initiator_tag = (gobject.timeout_add
322
(self.interval_milliseconds(),
323
self.start_checker))
259
self.checker_initiator_tag = gobject.timeout_add\
260
(self._interval_milliseconds,
261
self.start_checker)
324
262
# Also start a new checker *right now*.
325
263
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
331
332
def disable(self):
333
"""Disable this client."""
334
if not getattr(self, "enabled", False):
264
# Schedule a stop() when 'timeout' has passed
265
self.stop_initiator_tag = gobject.timeout_add\
266
(self._timeout_milliseconds,
267
self.stop)
268
def stop(self):
269
"""Stop this client.
270
The possibility that a client might be restarted is left open,
271
but not currently used."""
272
# If this client doesn't have a secret, it is already stopped.
273
if self.secret:
274
logger.info(u"Stopping client %s", self.name)
275
self.secret = None
276
else:
335
277
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):
278
if getattr(self, "stop_initiator_tag", False):
279
gobject.source_remove(self.stop_initiator_tag)
280
self.stop_initiator_tag = None
281
if getattr(self, "checker_initiator_tag", False):
341
282
gobject.source_remove(self.checker_initiator_tag)
342
283
self.checker_initiator_tag = None
343
284
self.stop_checker()
344
if self.disable_hook:
345
self.disable_hook(self)
346
self.enabled = False
285
if self.stop_hook:
286
self.stop_hook(self)
347
287
# Do not run this again if called by a gobject.timeout_add
348
288
return False
349
350
289
def __del__(self):
351
self.disable_hook = None
352
self.disable()
353
354
def checker_callback(self, pid, condition, command):
290
self.stop_hook = None
291
self.stop()
292
def checker_callback(self, pid, condition):
355
293
"""The checker has completed, so take appropriate actions."""
294
now = datetime.datetime.now()
356
295
self.checker_callback_tag = None
357
296
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:
297
if os.WIFEXITED(condition) \
298
and (os.WEXITSTATUS(condition) == 0):
299
logger.info(u"Checker for %(name)s succeeded",
300
vars(self))
301
self.last_checked_ok = now
302
gobject.source_remove(self.stop_initiator_tag)
303
self.stop_initiator_tag = gobject.timeout_add\
304
(self._timeout_milliseconds,
305
self.stop)
306
elif not os.WIFEXITED(condition):
368
307
logger.warning(u"Checker for %(name)s crashed?",
369
308
vars(self))
370
371
def checked_ok(self):
372
"""Bump up the timeout for this client.
373
374
This should only be called when the client has been seen,
375
alive and well.
376
"""
377
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))
382
309
else:
310
logger.info(u"Checker for %(name)s failed",
311
vars(self))
383
312
def start_checker(self):
384
313
"""Start a new checker subprocess if one is not running.
385
386
314
If a checker already exists, leave it running and do
387
315
nothing."""
388
316
# The reason for not killing a running checker is that if we
393
321
# checkers alone, the checker would have to take more time
394
322
# than 'timeout' for the client to be declared invalid, which
395
323
# 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
324
if self.checker is None:
407
325
try:
408
# In case checker_command has exactly one % operator
409
command = self.checker_command % self.host
326
# In case check_command has exactly one % operator
327
command = self.check_command % self.fqdn
410
328
except TypeError:
411
329
# Escape attributes for the shell
412
escaped_attrs = dict((key,
413
re.escape(unicode(str(val),
414
errors=
415
u'replace')))
330
escaped_attrs = dict((key, re.escape(str(val)))
416
331
for key, val in
417
332
vars(self).iteritems())
418
333
try:
419
command = self.checker_command % escaped_attrs
334
command = self.check_command % escaped_attrs
420
335
except TypeError, error:
421
336
logger.error(u'Could not format string "%s":'
422
u' %s', self.checker_command, error)
337
u' %s', self.check_command, error)
423
338
return True # Try again later
424
self.current_checker_command = command
425
339
try:
426
340
logger.info(u"Starting checker %r for %s",
427
341
command, self.name)
428
# We don't need to redirect stdout and stderr, since
429
# in normal mode, that is already done by daemon(),
430
# and in debug mode we don't want to. (Stdin is
431
# always replaced by /dev/null.)
432
342
self.checker = subprocess.Popen(command,
433
343
close_fds=True,
434
shell=True, cwd=u"/")
435
self.checker_callback_tag = (gobject.child_watch_add
436
(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)
445
except OSError, error:
344
shell=True, cwd="/")
345
self.checker_callback_tag = gobject.child_watch_add\
346
(self.checker.pid,
347
self.checker_callback)
348
except subprocess.OSError, error:
446
349
logger.error(u"Failed to start subprocess: %s",
447
350
error)
448
351
# Re-run this periodically if run by gobject.timeout_add
449
352
return True
450
451
353
def stop_checker(self):
452
354
"""Force the checker process, if any, to stop."""
453
355
if self.checker_callback_tag:
454
356
gobject.source_remove(self.checker_callback_tag)
455
357
self.checker_callback_tag = None
456
if getattr(self, u"checker", None) is None:
358
if getattr(self, "checker", None) is None:
457
359
return
458
logger.debug(u"Stopping checker for %(name)s", vars(self))
360
logger.debug("Stopping checker for %(name)s", vars(self))
459
361
try:
460
362
os.kill(self.checker.pid, signal.SIGTERM)
461
363
#os.sleep(0.5)
465
367
if error.errno != errno.ESRCH: # No such process
466
368
raise
467
369
self.checker = None
468
469
370
def still_valid(self):
470
371
"""Has the timeout not yet passed for this client?"""
471
if not getattr(self, u"enabled", False):
472
return False
473
now = datetime.datetime.utcnow()
372
now = datetime.datetime.now()
474
373
if self.last_checked_ok is None:
475
374
return now < (self.created + self.timeout)
476
375
else:
477
376
return now < (self.last_checked_ok + self.timeout)
478
377
479
378
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
594
## 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()
601
602
# CheckerCompleted - signal
603
@dbus.service.signal(_interface, signature=u"nxs")
604
def CheckerCompleted(self, exitcode, waitstatus, command):
605
"D-Bus signal"
606
pass
607
608
# CheckerStarted - signal
609
@dbus.service.signal(_interface, signature=u"s")
610
def CheckerStarted(self, command):
611
"D-Bus signal"
612
pass
613
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
679
680
# SetChecker - method
681
@dbus.service.method(_interface, in_signature=u"s")
682
def SetChecker(self, checker):
683
"D-Bus setter method"
684
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
690
# SetHost - method
691
@dbus.service.method(_interface, in_signature=u"s")
692
def SetHost(self, host):
693
"D-Bus setter method"
694
self.host = host
695
# Emit D-Bus signal
696
self.PropertyChanged(dbus.String(u"host"),
697
dbus.String(self.host, variant_level=1))
698
699
# SetInterval - method
700
@dbus.service.method(_interface, in_signature=u"t")
701
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)))
707
708
# SetSecret - method
709
@dbus.service.method(_interface, in_signature=u"ay",
710
byte_arrays=True)
711
def SetSecret(self, secret):
712
"D-Bus setter method"
713
self.secret = str(secret)
714
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()
729
730
# 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()
741
742
# StopChecker - method
743
@dbus.service.method(_interface)
744
def StopChecker(self):
745
self.stop_checker()
746
747
del _interface
748
749
750
class ClientHandler(socketserver.BaseRequestHandler, object):
751
"""A class to handle client connections.
752
753
Instantiated once for each connection to handle it.
379
def peer_certificate(session):
380
"Return the peer's OpenPGP certificate as a bytestring"
381
# If not an OpenPGP certificate...
382
if gnutls.library.functions.gnutls_certificate_type_get\
383
(session._c_object) \
384
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP:
385
# ...do the normal thing
386
return session.peer_certificate
387
list_size = ctypes.c_uint()
388
cert_list = gnutls.library.functions.gnutls_certificate_get_peers\
389
(session._c_object, ctypes.byref(list_size))
390
if list_size.value == 0:
391
return None
392
cert = cert_list[0]
393
return ctypes.string_at(cert.data, cert.size)
394
395
396
def fingerprint(openpgp):
397
"Convert an OpenPGP bytestring to a hexdigit fingerprint string"
398
# New empty GnuTLS certificate
399
crt = gnutls.library.types.gnutls_openpgp_crt_t()
400
gnutls.library.functions.gnutls_openpgp_crt_init\
401
(ctypes.byref(crt))
402
# New GnuTLS "datum" with the OpenPGP public key
403
datum = gnutls.library.types.gnutls_datum_t\
404
(ctypes.cast(ctypes.c_char_p(openpgp),
405
ctypes.POINTER(ctypes.c_ubyte)),
406
ctypes.c_uint(len(openpgp)))
407
# Import the OpenPGP public key into the certificate
408
ret = gnutls.library.functions.gnutls_openpgp_crt_import\
409
(crt,
410
ctypes.byref(datum),
411
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
412
# New buffer for the fingerprint
413
buffer = ctypes.create_string_buffer(20)
414
buffer_length = ctypes.c_size_t()
415
# Get the fingerprint from the certificate into the buffer
416
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint\
417
(crt, ctypes.byref(buffer), ctypes.byref(buffer_length))
418
# Deinit the certificate
419
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
420
# Convert the buffer to a Python bytestring
421
fpr = ctypes.string_at(buffer, buffer_length.value)
422
# Convert the bytestring to hexadecimal notation
423
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
424
return hex_fpr
425
426
427
class tcp_handler(SocketServer.BaseRequestHandler, object):
428
"""A TCP request handler class.
429
Instantiated by IPv6_TCPServer for each request to handle it.
754
430
Note: This will run in its own forked process."""
755
431
756
432
def handle(self):
757
433
logger.info(u"TCP connection from: %s",
758
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\n" % fpr)
815
session.bye()
816
return
817
# Have to check if client.still_valid(), since it is
818
# possible that the client timed out while establishing
819
# the GnuTLS session.
820
if not client.still_valid():
821
ipc.write(u"INVALID %s\n" % client.name)
822
session.bye()
823
return
824
ipc.write(u"SENDING %s\n" % client.name)
825
sent_size = 0
826
while sent_size < len(client.secret):
827
sent = session.send(client.secret[sent_size:])
828
logger.debug(u"Sent: %d, remaining: %d",
829
sent, len(client.secret)
830
- (sent_size + sent))
831
sent_size += sent
832
session.bye()
833
834
@staticmethod
835
def peer_certificate(session):
836
"Return the peer's OpenPGP certificate as a bytestring"
837
# If not an OpenPGP certificate...
838
if (gnutls.library.functions
839
.gnutls_certificate_type_get(session._c_object)
840
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
841
# ...do the normal thing
842
return session.peer_certificate
843
list_size = ctypes.c_uint(1)
844
cert_list = (gnutls.library.functions
845
.gnutls_certificate_get_peers
846
(session._c_object, ctypes.byref(list_size)))
847
if not bool(cert_list) and list_size.value != 0:
848
raise gnutls.errors.GNUTLSError(u"error getting peer"
849
u" certificate")
850
if list_size.value == 0:
851
return None
852
cert = cert_list[0]
853
return ctypes.string_at(cert.data, cert.size)
854
855
@staticmethod
856
def fingerprint(openpgp):
857
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
858
# New GnuTLS "datum" with the OpenPGP public key
859
datum = (gnutls.library.types
860
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
861
ctypes.POINTER
862
(ctypes.c_ubyte)),
863
ctypes.c_uint(len(openpgp))))
864
# New empty GnuTLS certificate
865
crt = gnutls.library.types.gnutls_openpgp_crt_t()
866
(gnutls.library.functions
867
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
868
# Import the OpenPGP public key into the certificate
869
(gnutls.library.functions
870
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
871
gnutls.library.constants
872
.GNUTLS_OPENPGP_FMT_RAW))
873
# Verify the self signature in the key
874
crtverify = ctypes.c_uint()
875
(gnutls.library.functions
876
.gnutls_openpgp_crt_verify_self(crt, 0,
877
ctypes.byref(crtverify)))
878
if crtverify.value != 0:
879
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
880
raise (gnutls.errors.CertificateSecurityError
881
(u"Verify failed"))
882
# New buffer for the fingerprint
883
buf = ctypes.create_string_buffer(20)
884
buf_len = ctypes.c_size_t()
885
# Get the fingerprint from the certificate into the buffer
886
(gnutls.library.functions
887
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
888
ctypes.byref(buf_len)))
889
# Deinit the certificate
890
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
891
# Convert the buffer to a Python bytestring
892
fpr = ctypes.string_at(buf, buf_len.value)
893
# Convert the bytestring to hexadecimal notation
894
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
895
return hex_fpr
896
897
898
class ForkingMixInWithPipe(socketserver.ForkingMixIn, object):
899
"""Like socketserver.ForkingMixIn, but also pass a pipe."""
900
def process_request(self, request, client_address):
901
"""Overrides and wraps the original process_request().
902
903
This function creates a new pipe in self.pipe
904
"""
905
self.pipe = os.pipe()
906
super(ForkingMixInWithPipe,
907
self).process_request(request, client_address)
908
os.close(self.pipe[1]) # close write end
909
self.add_pipe(self.pipe[0])
910
def add_pipe(self, pipe):
911
"""Dummy function; override as necessary"""
912
os.close(pipe)
913
914
915
class IPv6_TCPServer(ForkingMixInWithPipe,
916
socketserver.TCPServer, object):
917
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
918
434
unicode(self.client_address))
435
session = gnutls.connection.ClientSession\
436
(self.request, gnutls.connection.X509Credentials())
437
438
line = self.request.makefile().readline()
439
logger.debug(u"Protocol version: %r", line)
440
try:
441
if int(line.strip().split()[0]) > 1:
442
raise RuntimeError
443
except (ValueError, IndexError, RuntimeError), error:
444
logger.error(u"Unknown protocol version: %s", error)
445
return
446
447
# Note: gnutls.connection.X509Credentials is really a generic
448
# GnuTLS certificate credentials object so long as no X.509
449
# keys are added to it. Therefore, we can use it here despite
450
# using OpenPGP certificates.
451
452
#priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
453
# "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
454
# "+DHE-DSS"))
455
priority = "NORMAL" # Fallback default, since this
456
# MUST be set.
457
if self.server.settings["priority"]:
458
priority = self.server.settings["priority"]
459
gnutls.library.functions.gnutls_priority_set_direct\
460
(session._c_object, priority, None);
461
462
try:
463
session.handshake()
464
except gnutls.errors.GNUTLSError, error:
465
logger.warning(u"Handshake failed: %s", error)
466
# Do not run session.bye() here: the session is not
467
# established. Just abandon the request.
468
return
469
try:
470
fpr = fingerprint(peer_certificate(session))
471
except (TypeError, gnutls.errors.GNUTLSError), error:
472
logger.warning(u"Bad certificate: %s", error)
473
session.bye()
474
return
475
logger.debug(u"Fingerprint: %s", fpr)
476
client = None
477
for c in self.server.clients:
478
if c.fingerprint == fpr:
479
client = c
480
break
481
if not client:
482
logger.warning(u"Client not found for fingerprint: %s",
483
fpr)
484
session.bye()
485
return
486
# Have to check if client.still_valid(), since it is possible
487
# that the client timed out while establishing the GnuTLS
488
# session.
489
if not client.still_valid():
490
logger.warning(u"Client %(name)s is invalid",
491
vars(client))
492
session.bye()
493
return
494
sent_size = 0
495
while sent_size < len(client.secret):
496
sent = session.send(client.secret[sent_size:])
497
logger.debug(u"Sent: %d, remaining: %d",
498
sent, len(client.secret)
499
- (sent_size + sent))
500
sent_size += sent
501
session.bye()
502
503
504
class IPv6_TCPServer(SocketServer.ForkingTCPServer, object):
505
"""IPv6 TCP server. Accepts 'None' as address and/or port.
919
506
Attributes:
920
enabled: Boolean; whether this server is activated yet
921
interface: None or a network interface name (string)
922
use_ipv6: Boolean; to use IPv6 or not
507
settings: Server settings
508
clients: Set() of Client objects
923
509
"""
924
def __init__(self, server_address, RequestHandlerClass,
925
interface=None, use_ipv6=True):
926
self.interface = interface
927
if use_ipv6:
928
self.address_family = socket.AF_INET6
929
socketserver.TCPServer.__init__(self, server_address,
930
RequestHandlerClass)
510
address_family = socket.AF_INET6
511
def __init__(self, *args, **kwargs):
512
if "settings" in kwargs:
513
self.settings = kwargs["settings"]
514
del kwargs["settings"]
515
if "clients" in kwargs:
516
self.clients = kwargs["clients"]
517
del kwargs["clients"]
518
return super(type(self), self).__init__(*args, **kwargs)
931
519
def server_bind(self):
932
520
"""This overrides the normal server_bind() function
933
521
to bind to an interface if one was specified, and also NOT to
934
522
bind to an address or port if they were not specified."""
935
if self.interface is not None:
936
if SO_BINDTODEVICE is None:
937
logger.error(u"SO_BINDTODEVICE does not exist;"
938
u" cannot bind to interface %s",
939
self.interface)
940
else:
941
try:
942
self.socket.setsockopt(socket.SOL_SOCKET,
943
SO_BINDTODEVICE,
944
str(self.interface
945
+ u'\0'))
946
except socket.error, error:
947
if error[0] == errno.EPERM:
948
logger.error(u"No permission to"
949
u" bind to interface %s",
950
self.interface)
951
elif error[0] == errno.ENOPROTOOPT:
952
logger.error(u"SO_BINDTODEVICE not available;"
953
u" cannot bind to interface %s",
954
self.interface)
955
else:
956
raise
523
if self.settings["interface"]:
524
# 25 is from /usr/include/asm-i486/socket.h
525
SO_BINDTODEVICE = getattr(socket, "SO_BINDTODEVICE", 25)
526
try:
527
self.socket.setsockopt(socket.SOL_SOCKET,
528
SO_BINDTODEVICE,
529
self.settings["interface"])
530
except socket.error, error:
531
if error[0] == errno.EPERM:
532
logger.error(u"No permission to"
533
u" bind to interface %s",
534
self.settings["interface"])
535
else:
536
raise error
957
537
# Only bind(2) the socket if we really need to.
958
538
if self.server_address[0] or self.server_address[1]:
959
539
if not self.server_address[0]:
960
if self.address_family == socket.AF_INET6:
961
any_address = u"::" # in6addr_any
962
else:
963
any_address = socket.INADDR_ANY
964
self.server_address = (any_address,
540
in6addr_any = "::"
541
self.server_address = (in6addr_any,
965
542
self.server_address[1])
966
elif not self.server_address[1]:
543
elif self.server_address[1] is None:
967
544
self.server_address = (self.server_address[0],
968
545
0)
969
# if self.interface:
970
# self.server_address = (self.server_address[0],
971
# 0, # port
972
# 0, # flowinfo
973
# if_nametoindex
974
# (self.interface))
975
return socketserver.TCPServer.server_bind(self)
976
977
978
class MandosServer(IPv6_TCPServer):
979
"""Mandos server.
980
981
Attributes:
982
clients: set of Client objects
983
gnutls_priority GnuTLS priority string
984
use_dbus: Boolean; to emit D-Bus signals or not
985
clients: set of Client objects
986
gnutls_priority GnuTLS priority string
987
use_dbus: Boolean; to emit D-Bus signals or not
988
989
Assumes a gobject.MainLoop event loop.
990
"""
991
def __init__(self, server_address, RequestHandlerClass,
992
interface=None, use_ipv6=True, clients=None,
993
gnutls_priority=None, use_dbus=True):
994
self.enabled = False
995
self.clients = clients
996
if self.clients is None:
997
self.clients = set()
998
self.use_dbus = use_dbus
999
self.gnutls_priority = gnutls_priority
1000
IPv6_TCPServer.__init__(self, server_address,
1001
RequestHandlerClass,
1002
interface = interface,
1003
use_ipv6 = use_ipv6)
1004
def server_activate(self):
1005
if self.enabled:
1006
return socketserver.TCPServer.server_activate(self)
1007
def enable(self):
1008
self.enabled = True
1009
def add_pipe(self, pipe):
1010
# Call "handle_ipc" for both data and EOF events
1011
gobject.io_add_watch(pipe, gobject.IO_IN | gobject.IO_HUP,
1012
self.handle_ipc)
1013
def handle_ipc(self, source, condition, file_objects={}):
1014
condition_names = {
1015
gobject.IO_IN: u"IN", # There is data to read.
1016
gobject.IO_OUT: u"OUT", # Data can be written (without
1017
# blocking).
1018
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1019
gobject.IO_ERR: u"ERR", # Error condition.
1020
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1021
# broken, usually for pipes and
1022
# sockets).
1023
}
1024
conditions_string = ' | '.join(name
1025
for cond, name in
1026
condition_names.iteritems()
1027
if cond & condition)
1028
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1029
conditions_string)
1030
1031
# Turn the pipe file descriptor into a Python file object
1032
if source not in file_objects:
1033
file_objects[source] = os.fdopen(source, u"r", 1)
1034
1035
# Read a line from the file object
1036
cmdline = file_objects[source].readline()
1037
if not cmdline: # Empty line means end of file
1038
# close the IPC pipe
1039
file_objects[source].close()
1040
del file_objects[source]
1041
1042
# Stop calling this function
1043
return False
1044
1045
logger.debug(u"IPC command: %r", cmdline)
1046
1047
# Parse and act on command
1048
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1049
1050
if cmd == u"NOTFOUND":
1051
logger.warning(u"Client not found for fingerprint: %s",
1052
args)
1053
if self.use_dbus:
1054
# Emit D-Bus signal
1055
mandos_dbus_service.ClientNotFound(args)
1056
elif cmd == u"INVALID":
1057
for client in self.clients:
1058
if client.name == args:
1059
logger.warning(u"Client %s is invalid", args)
1060
if self.use_dbus:
1061
# Emit D-Bus signal
1062
client.Rejected()
1063
break
1064
else:
1065
logger.error(u"Unknown client %s is invalid", args)
1066
elif cmd == u"SENDING":
1067
for client in self.clients:
1068
if client.name == args:
1069
logger.info(u"Sending secret to %s", client.name)
1070
client.checked_ok()
1071
if self.use_dbus:
1072
# Emit D-Bus signal
1073
client.ReceivedSecret()
1074
break
1075
else:
1076
logger.error(u"Sending secret to unknown client %s",
1077
args)
1078
else:
1079
logger.error(u"Unknown IPC command: %r", cmdline)
1080
1081
# Keep calling this function
1082
return True
546
return super(type(self), self).server_bind()
1083
547
1084
548
1085
549
def string_to_delta(interval):
1086
550
"""Parse a string and return a datetime.timedelta
1087
1088
>>> string_to_delta(u'7d')
551
552
>>> string_to_delta('7d')
1089
553
datetime.timedelta(7)
1090
>>> string_to_delta(u'60s')
554
>>> string_to_delta('60s')
1091
555
datetime.timedelta(0, 60)
1092
>>> string_to_delta(u'60m')
556
>>> string_to_delta('60m')
1093
557
datetime.timedelta(0, 3600)
1094
>>> string_to_delta(u'24h')
558
>>> string_to_delta('24h')
1095
559
datetime.timedelta(1)
1096
560
>>> string_to_delta(u'1w')
1097
561
datetime.timedelta(7)
1098
>>> string_to_delta(u'5m 30s')
1099
datetime.timedelta(0, 330)
1100
562
"""
1101
timevalue = datetime.timedelta(0)
1102
for s in interval.split():
1103
try:
1104
suffix = unicode(s[-1])
1105
value = int(s[:-1])
1106
if suffix == u"d":
1107
delta = datetime.timedelta(value)
1108
elif suffix == u"s":
1109
delta = datetime.timedelta(0, value)
1110
elif suffix == u"m":
1111
delta = datetime.timedelta(0, 0, 0, 0, value)
1112
elif suffix == u"h":
1113
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1114
elif suffix == u"w":
1115
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1116
else:
1117
raise ValueError
1118
except (ValueError, IndexError):
563
try:
564
suffix=unicode(interval[-1])
565
value=int(interval[:-1])
566
if suffix == u"d":
567
delta = datetime.timedelta(value)
568
elif suffix == u"s":
569
delta = datetime.timedelta(0, value)
570
elif suffix == u"m":
571
delta = datetime.timedelta(0, 0, 0, 0, value)
572
elif suffix == u"h":
573
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
574
elif suffix == u"w":
575
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
576
else:
1119
577
raise ValueError
1120
timevalue += delta
1121
return timevalue
1122
578
except (ValueError, IndexError):
579
raise ValueError
580
return delta
581
582
583
def server_state_changed(state):
584
"""Derived from the Avahi example code"""
585
if state == avahi.SERVER_COLLISION:
586
logger.error(u"Server name collision")
587
service.remove()
588
elif state == avahi.SERVER_RUNNING:
589
service.add()
590
591
592
def entry_group_state_changed(state, error):
593
"""Derived from the Avahi example code"""
594
logger.debug(u"state change: %i", state)
595
596
if state == avahi.ENTRY_GROUP_ESTABLISHED:
597
logger.debug(u"Service established.")
598
elif state == avahi.ENTRY_GROUP_COLLISION:
599
logger.warning(u"Service name collision.")
600
service.rename()
601
elif state == avahi.ENTRY_GROUP_FAILURE:
602
logger.critical(u"Error in group state changed %s",
603
unicode(error))
604
raise AvahiGroupError("State changed: %s", str(error))
1123
605
1124
606
def if_nametoindex(interface):
1125
"""Call the C function if_nametoindex(), or equivalent
1126
1127
Note: This function cannot accept a unicode string."""
607
"""Call the C function if_nametoindex(), or equivalent"""
1128
608
global if_nametoindex
1129
609
try:
1130
if_nametoindex = (ctypes.cdll.LoadLibrary
1131
(ctypes.util.find_library(u"c"))
1132
.if_nametoindex)
610
if "ctypes.util" not in sys.modules:
611
import ctypes.util
612
if_nametoindex = ctypes.cdll.LoadLibrary\
613
(ctypes.util.find_library("c")).if_nametoindex
1133
614
except (OSError, AttributeError):
1134
logger.warning(u"Doing if_nametoindex the hard way")
615
if "struct" not in sys.modules:
616
import struct
617
if "fcntl" not in sys.modules:
618
import fcntl
1135
619
def if_nametoindex(interface):
1136
620
"Get an interface index the hard way, i.e. using fcntl()"
1137
621
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1138
with closing(socket.socket()) as s:
1139
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1140
struct.pack(str(u"16s16x"),
1141
interface))
1142
interface_index = struct.unpack(str(u"I"),
1143
ifreq[16:20])[0]
622
s = socket.socket()
623
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
624
struct.pack("16s16x", interface))
625
s.close()
626
interface_index = struct.unpack("I", ifreq[16:20])[0]
1144
627
return interface_index
1145
628
return if_nametoindex(interface)
1146
629
1147
630
1148
def daemon(nochdir = False, noclose = False):
631
def daemon(nochdir, noclose):
1149
632
"""See daemon(3). Standard BSD Unix function.
1150
1151
633
This should really exist as os.daemon, but it doesn't (yet)."""
1152
634
if os.fork():
1153
635
sys.exit()
1154
636
os.setsid()
1155
637
if not nochdir:
1156
os.chdir(u"/")
1157
if os.fork():
1158
sys.exit()
638
os.chdir("/")
1159
639
if not noclose:
1160
640
# Close all standard open file descriptors
1161
641
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1162
642
if not stat.S_ISCHR(os.fstat(null).st_mode):
1163
643
raise OSError(errno.ENODEV,
1164
u"/dev/null not a character device")
644
"/dev/null not a character device")
1165
645
os.dup2(null, sys.stdin.fileno())
1166
646
os.dup2(null, sys.stdout.fileno())
1167
647
os.dup2(null, sys.stderr.fileno())
1170
650
1171
651
1172
652
def main():
1173
1174
######################################################################
1175
# Parsing of options, both command line and config file
1176
1177
parser = optparse.OptionParser(version = "%%prog %s" % version)
1178
parser.add_option("-i", u"--interface", type=u"string",
1179
metavar="IF", help=u"Bind to interface IF")
1180
parser.add_option("-a", u"--address", type=u"string",
1181
help=u"Address to listen for requests on")
1182
parser.add_option("-p", u"--port", type=u"int",
1183
help=u"Port number to receive requests on")
1184
parser.add_option("--check", action=u"store_true",
1185
help=u"Run self-test")
1186
parser.add_option("--debug", action=u"store_true",
1187
help=u"Debug mode; run in foreground and log to"
1188
u" terminal")
1189
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1190
u" priority string (see GnuTLS documentation)")
1191
parser.add_option("--servicename", type=u"string",
1192
metavar=u"NAME", help=u"Zeroconf service name")
1193
parser.add_option("--configdir", type=u"string",
1194
default=u"/etc/mandos", metavar=u"DIR",
1195
help=u"Directory to search for configuration"
1196
u" files")
1197
parser.add_option("--no-dbus", action=u"store_false",
1198
dest=u"use_dbus", help=u"Do not provide D-Bus"
1199
u" system bus interface")
1200
parser.add_option("--no-ipv6", action=u"store_false",
1201
dest=u"use_ipv6", help=u"Do not use IPv6")
1202
options = parser.parse_args()[0]
653
global main_loop_started
654
main_loop_started = False
655
656
parser = OptionParser()
657
parser.add_option("-i", "--interface", type="string",
658
metavar="IF", help="Bind to interface IF")
659
parser.add_option("-a", "--address", type="string",
660
help="Address to listen for requests on")
661
parser.add_option("-p", "--port", type="int",
662
help="Port number to receive requests on")
663
parser.add_option("--check", action="store_true", default=False,
664
help="Run self-test")
665
parser.add_option("--debug", action="store_true", default=False,
666
help="Debug mode; run in foreground and log to"
667
" terminal")
668
parser.add_option("--priority", type="string", help="GnuTLS"
669
" priority string (see GnuTLS documentation)")
670
parser.add_option("--servicename", type="string", metavar="NAME",
671
help="Zeroconf service name")
672
parser.add_option("--configdir", type="string",
673
default="/etc/mandos", metavar="DIR",
674
help="Directory to search for configuration"
675
" files")
676
(options, args) = parser.parse_args()
1203
677
1204
678
if options.check:
1205
679
import doctest
1207
681
sys.exit()
1208
682
1209
683
# Default values for config file for server-global settings
1210
server_defaults = { u"interface": u"",
1211
u"address": u"",
1212
u"port": u"",
1213
u"debug": u"False",
1214
u"priority":
1215
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1216
u"servicename": u"Mandos",
1217
u"use_dbus": u"True",
1218
u"use_ipv6": u"True",
684
server_defaults = { "interface": "",
685
"address": "",
686
"port": "",
687
"debug": "False",
688
"priority":
689
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
690
"servicename": "Mandos",
1219
691
}
1220
692
1221
693
# Parse config file for server-global settings
1222
server_config = configparser.SafeConfigParser(server_defaults)
694
server_config = ConfigParser.SafeConfigParser(server_defaults)
1223
695
del server_defaults
1224
server_config.read(os.path.join(options.configdir,
1225
u"mandos.conf"))
696
server_config.read(os.path.join(options.configdir, "server.conf"))
697
server_section = "server"
1226
698
# Convert the SafeConfigParser object to a dict
1227
server_settings = server_config.defaults()
1228
# Use the appropriate methods on the non-string config options
1229
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1230
server_settings[option] = server_config.getboolean(u"DEFAULT",
1231
option)
1232
if server_settings["port"]:
1233
server_settings["port"] = server_config.getint(u"DEFAULT",
1234
u"port")
699
server_settings = dict(server_config.items(server_section))
700
# Use getboolean on the boolean config option
701
server_settings["debug"] = server_config.getboolean\
702
(server_section, "debug")
1235
703
del server_config
1236
704
1237
705
# Override the settings from the config file with command line
1238
706
# options, if set.
1239
for option in (u"interface", u"address", u"port", u"debug",
1240
u"priority", u"servicename", u"configdir",
1241
u"use_dbus", u"use_ipv6"):
707
for option in ("interface", "address", "port", "debug",
708
"priority", "servicename", "configdir"):
1242
709
value = getattr(options, option)
1243
710
if value is not None:
1244
711
server_settings[option] = value
1245
712
del options
1246
# Force all strings to be unicode
1247
for option in server_settings.keys():
1248
if type(server_settings[option]) is str:
1249
server_settings[option] = unicode(server_settings[option])
1250
713
# Now we have our good server settings in "server_settings"
1251
714
1252
##################################################################
1253
1254
# For convenience
1255
debug = server_settings[u"debug"]
1256
use_dbus = server_settings[u"use_dbus"]
1257
use_ipv6 = server_settings[u"use_ipv6"]
1258
1259
if not debug:
1260
syslogger.setLevel(logging.WARNING)
1261
console.setLevel(logging.WARNING)
1262
1263
if server_settings[u"servicename"] != u"Mandos":
1264
syslogger.setFormatter(logging.Formatter
1265
(u'Mandos (%s) [%%(process)d]:'
1266
u' %%(levelname)s: %%(message)s'
1267
% server_settings[u"servicename"]))
1268
1269
715
# Parse config file with clients
1270
client_defaults = { u"timeout": u"1h",
1271
u"interval": u"5m",
1272
u"checker": u"fping -q -- %%(host)s",
1273
u"host": u"",
716
client_defaults = { "timeout": "1h",
717
"interval": "5m",
718
"checker": "fping -q -- %%(fqdn)s",
1274
719
}
1275
client_config = configparser.SafeConfigParser(client_defaults)
1276
client_config.read(os.path.join(server_settings[u"configdir"],
1277
u"clients.conf"))
1278
1279
global mandos_dbus_service
1280
mandos_dbus_service = None
1281
1282
tcp_server = MandosServer((server_settings[u"address"],
1283
server_settings[u"port"]),
1284
ClientHandler,
1285
interface=server_settings[u"interface"],
1286
use_ipv6=use_ipv6,
1287
gnutls_priority=
1288
server_settings[u"priority"],
1289
use_dbus=use_dbus)
1290
pidfilename = u"/var/run/mandos.pid"
1291
try:
1292
pidfile = open(pidfilename, u"w")
1293
except IOError:
1294
logger.error(u"Could not open file %r", pidfilename)
1295
1296
try:
1297
uid = pwd.getpwnam(u"_mandos").pw_uid
1298
gid = pwd.getpwnam(u"_mandos").pw_gid
1299
except KeyError:
1300
try:
1301
uid = pwd.getpwnam(u"mandos").pw_uid
1302
gid = pwd.getpwnam(u"mandos").pw_gid
1303
except KeyError:
1304
try:
1305
uid = pwd.getpwnam(u"nobody").pw_uid
1306
gid = pwd.getpwnam(u"nobody").pw_gid
1307
except KeyError:
1308
uid = 65534
1309
gid = 65534
1310
try:
1311
os.setgid(gid)
1312
os.setuid(uid)
1313
except OSError, error:
1314
if error[0] != errno.EPERM:
1315
raise error
1316
1317
# Enable all possible GnuTLS debugging
1318
if debug:
1319
# "Use a log level over 10 to enable all debugging options."
1320
# - GnuTLS manual
1321
gnutls.library.functions.gnutls_global_set_log_level(11)
1322
1323
@gnutls.library.types.gnutls_log_func
1324
def debug_gnutls(level, string):
1325
logger.debug(u"GnuTLS: %s", string[:-1])
1326
1327
(gnutls.library.functions
1328
.gnutls_global_set_log_function(debug_gnutls))
720
client_config = ConfigParser.SafeConfigParser(client_defaults)
721
client_config.read(os.path.join(server_settings["configdir"],
722
"clients.conf"))
723
724
global service
725
service = AvahiService(name = server_settings["servicename"],
726
type = "_mandos._tcp", );
727
if server_settings["interface"]:
728
service.interface = if_nametoindex(server_settings["interface"])
1329
729
1330
730
global main_loop
731
global bus
732
global server
1331
733
# From the Avahi example code
1332
734
DBusGMainLoop(set_as_default=True )
1333
735
main_loop = gobject.MainLoop()
1334
736
bus = dbus.SystemBus()
737
server = dbus.Interface(
738
bus.get_object( avahi.DBUS_NAME, avahi.DBUS_PATH_SERVER ),
739
avahi.DBUS_INTERFACE_SERVER )
1335
740
# End of Avahi example code
1336
if use_dbus:
1337
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos", bus)
1338
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1339
service = AvahiService(name = server_settings[u"servicename"],
1340
servicetype = u"_mandos._tcp",
1341
protocol = protocol, bus = bus)
1342
if server_settings["interface"]:
1343
service.interface = (if_nametoindex
1344
(str(server_settings[u"interface"])))
1345
741
1346
client_class = Client
1347
if use_dbus:
1348
client_class = functools.partial(ClientDBus, bus = bus)
1349
tcp_server.clients.update(set(
1350
client_class(name = section,
1351
config= dict(client_config.items(section)))
1352
for section in client_config.sections()))
1353
if not tcp_server.clients:
1354
logger.warning(u"No clients defined")
742
debug = server_settings["debug"]
1355
743
1356
744
if debug:
1357
# Redirect stdin so all checkers get /dev/null
1358
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1359
os.dup2(null, sys.stdin.fileno())
1360
if null > 2:
1361
os.close(null)
1362
else:
1363
# No console logging
1364
logger.removeHandler(console)
1365
# Close all input and output, do double fork, etc.
1366
daemon()
1367
1368
try:
1369
with closing(pidfile):
1370
pid = os.getpid()
1371
pidfile.write(str(pid) + "\n")
1372
del pidfile
1373
except IOError:
1374
logger.error(u"Could not write to file %r with PID %d",
1375
pidfilename, pid)
1376
except NameError:
1377
# "pidfile" was never created
1378
pass
1379
del pidfilename
745
console = logging.StreamHandler()
746
# console.setLevel(logging.DEBUG)
747
console.setFormatter(logging.Formatter\
748
('%(levelname)s: %(message)s'))
749
logger.addHandler(console)
750
del console
751
752
clients = Set()
753
def remove_from_clients(client):
754
clients.remove(client)
755
if not clients:
756
logger.critical(u"No clients left, exiting")
757
sys.exit()
758
759
clients.update(Set(Client(name = section,
760
stop_hook = remove_from_clients,
761
config
762
= dict(client_config.items(section)))
763
for section in client_config.sections()))
764
765
if not debug:
766
daemon(False, False)
1380
767
1381
768
def cleanup():
1382
769
"Cleanup function; run on exit"
1383
service.cleanup()
770
global group
771
# From the Avahi example code
772
if not group is None:
773
group.Free()
774
group = None
775
# End of Avahi example code
1384
776
1385
while tcp_server.clients:
1386
client = tcp_server.clients.pop()
1387
client.disable_hook = None
1388
client.disable()
777
while clients:
778
client = clients.pop()
779
client.stop_hook = None
780
client.stop()
1389
781
1390
782
atexit.register(cleanup)
1391
783
1394
786
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1395
787
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1396
788
1397
if use_dbus:
1398
class MandosDBusService(dbus.service.Object):
1399
"""A D-Bus proxy object"""
1400
def __init__(self):
1401
dbus.service.Object.__init__(self, bus, u"/")
1402
_interface = u"se.bsnet.fukt.Mandos"
1403
1404
@dbus.service.signal(_interface, signature=u"oa{sv}")
1405
def ClientAdded(self, objpath, properties):
1406
"D-Bus signal"
1407
pass
1408
1409
@dbus.service.signal(_interface, signature=u"s")
1410
def ClientNotFound(self, fingerprint):
1411
"D-Bus signal"
1412
pass
1413
1414
@dbus.service.signal(_interface, signature=u"os")
1415
def ClientRemoved(self, objpath, name):
1416
"D-Bus signal"
1417
pass
1418
1419
@dbus.service.method(_interface, out_signature=u"ao")
1420
def GetAllClients(self):
1421
"D-Bus method"
1422
return dbus.Array(c.dbus_object_path
1423
for c in tcp_server.clients)
1424
1425
@dbus.service.method(_interface,
1426
out_signature=u"a{oa{sv}}")
1427
def GetAllClientsWithProperties(self):
1428
"D-Bus method"
1429
return dbus.Dictionary(
1430
((c.dbus_object_path, c.GetAllProperties())
1431
for c in tcp_server.clients),
1432
signature=u"oa{sv}")
1433
1434
@dbus.service.method(_interface, in_signature=u"o")
1435
def RemoveClient(self, object_path):
1436
"D-Bus method"
1437
for c in tcp_server.clients:
1438
if c.dbus_object_path == object_path:
1439
tcp_server.clients.remove(c)
1440
c.remove_from_connection()
1441
# Don't signal anything except ClientRemoved
1442
c.disable(signal=False)
1443
# Emit D-Bus signal
1444
self.ClientRemoved(object_path, c.name)
1445
return
1446
raise KeyError
1447
1448
del _interface
1449
1450
mandos_dbus_service = MandosDBusService()
1451
1452
for client in tcp_server.clients:
1453
if use_dbus:
1454
# Emit D-Bus signal
1455
mandos_dbus_service.ClientAdded(client.dbus_object_path,
1456
client.GetAllProperties())
1457
client.enable()
1458
1459
tcp_server.enable()
1460
tcp_server.server_activate()
1461
789
for client in clients:
790
client.start()
791
792
tcp_server = IPv6_TCPServer((server_settings["address"],
793
server_settings["port"]),
794
tcp_handler,
795
settings=server_settings,
796
clients=clients)
1462
797
# Find out what port we got
1463
798
service.port = tcp_server.socket.getsockname()[1]
1464
if use_ipv6:
1465
logger.info(u"Now listening on address %r, port %d,"
1466
" flowinfo %d, scope_id %d"
1467
% tcp_server.socket.getsockname())
1468
else: # IPv4
1469
logger.info(u"Now listening on address %r, port %d"
1470
% tcp_server.socket.getsockname())
799
logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
800
u" scope_id %d" % tcp_server.socket.getsockname())
1471
801
1472
802
#service.interface = tcp_server.socket.getsockname()[3]
1473
803
1474
804
try:
1475
805
# From the Avahi example code
806
server.connect_to_signal("StateChanged", server_state_changed)
1476
807
try:
1477
service.activate()
808
server_state_changed(server.GetState())
1478
809
except dbus.exceptions.DBusException, error:
1479
810
logger.critical(u"DBusException: %s", error)
1480
811
sys.exit(1)
1482
813
1483
814
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
1484
815
lambda *args, **kwargs:
1485
(tcp_server.handle_request
1486
(*args[2:], **kwargs) or True))
816
tcp_server.handle_request\
817
(*args[2:], **kwargs) or True)
1487
818
1488
logger.debug(u"Starting main loop")
819
logger.debug("Starting main loop")
820
main_loop_started = True
1489
821
main_loop.run()
1490
822
except AvahiError, error:
1491
logger.critical(u"AvahiError: %s", error)
823
logger.critical(u"AvahiError: %s" + unicode(error))
1492
824
sys.exit(1)
1493
825
except KeyboardInterrupt:
1494
826
if debug:
1495
print >> sys.stderr
1496
logger.debug(u"Server received KeyboardInterrupt")
1497
logger.debug(u"Server exiting")
827
print
1498
828
1499
829
if __name__ == '__main__':
1500
830
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0