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- Committer: Teddy Hogeborn
- Date: 2008-09-30 07:23:39 UTC
- Revision ID: teddy@fukt.bsnet.se-20080930072339-jn15gyrtfpdk2dhx
* .bzrignore: Added "man" directory (created by "make install-html").
* Makefile: Add "common.ent" dependency to all manual pages.
(htmldir, version, SED): New variables.
(CFLAGS): Add -D option to define VERSION to $(version).
(MANPOST, HTMLPOST): Use $(SED).
(PROGS): Use $(CPROGS)
(CPROGS): New; C-only programs.
(objects): Use $(CPROGS).
(common.ent, mandos, mandos-keygen): New targets; update version
number to $(version).
(clean): Use $(CPROGS).
(check): Depend on "all".
(install-html): Install to $(htmldir).
* common.ent: New file with "version" entity.
* mandos-clients.conf.xml: Use "common.ent".
* mandos-keygen.xml: - '' -
* mandos.conf.xml: - '' -
* mandos.xml: - '' -
* plugin-runner.xml: - '' -
* plugins.d/mandos-client.xml: - '' -
* plugins.d/password-prompt.xml: - '' -
* plugin-runner.c (argp_program_version): Use VERSION.
* plugins.d/mandos-client.c (argp_program_version): - '' -
* plugins.d/password-prompt.c (argp_program_version): - '' -
* Makefile: Add "common.ent" dependency to all manual pages.
(htmldir, version, SED): New variables.
(CFLAGS): Add -D option to define VERSION to $(version).
(MANPOST, HTMLPOST): Use $(SED).
(PROGS): Use $(CPROGS)
(CPROGS): New; C-only programs.
(objects): Use $(CPROGS).
(common.ent, mandos, mandos-keygen): New targets; update version
number to $(version).
(clean): Use $(CPROGS).
(check): Depend on "all".
(install-html): Install to $(htmldir).
* common.ent: New file with "version" entity.
* mandos-clients.conf.xml: Use "common.ent".
* mandos-keygen.xml: - '' -
* mandos.conf.xml: - '' -
* mandos.xml: - '' -
* plugin-runner.xml: - '' -
* plugins.d/mandos-client.xml: - '' -
* plugins.d/password-prompt.xml: - '' -
* plugin-runner.c (argp_program_version): Use VERSION.
* plugins.d/mandos-client.c (argp_program_version): - '' -
* plugins.d/password-prompt.c (argp_program_version): - '' -
- files added:
- debian/mandos-client.config
- files removed:
- NEWS
- files modified:
- .bzrignore
added
removed
mandos
6
6
# This program is partly derived from an example program for an Avahi
7
7
# service publisher, downloaded from
8
8
# <http://avahi.org/wiki/PythonPublishExample>. This includes the
9
# methods "add", "remove", "server_state_changed",
10
# "entry_group_state_changed", "cleanup", and "activate" in the
11
# "AvahiService" class, and some lines in "main".
9
# methods "add" and "remove" in the "AvahiService" class, the
10
# "server_state_changed" and "entry_group_state_changed" functions,
11
# and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008,2009 Teddy Hogeborn
15
# Copyright © 2008,2009 Björn Påhlsson
14
# Copyright © 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
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# Contact the authors at <mandos@fukt.bsnet.se>.
32
31
#
33
32
34
from __future__ import division, with_statement, absolute_import
33
from __future__ import division
35
34
36
import SocketServer as socketserver
35
import SocketServer
37
36
import socket
38
import optparse
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
55
import logging
56
56
import logging.handlers
57
57
import pwd
58
from contextlib import closing
59
import struct
60
import fcntl
61
import functools
62
58
63
59
import dbus
64
import dbus.service
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60
import gobject
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import avahi
67
62
from dbus.mainloop.glib import DBusGMainLoop
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63
import ctypes
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64
import ctypes.util
70
65
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
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version = "1.0.12"
81
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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'))
66
version = "1.0"
67
68
logger = logging.Logger('mandos')
69
syslogger = logging.handlers.SysLogHandler\
70
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
71
address = "/dev/log")
72
syslogger.setFormatter(logging.Formatter\
73
('Mandos: %(levelname)s: %(message)s'))
89
74
logger.addHandler(syslogger)
90
75
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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'))
77
console.setFormatter(logging.Formatter('%(name)s: %(levelname)s:'
78
' %(message)s'))
95
79
logger.addHandler(console)
96
80
97
81
class AvahiError(Exception):
98
def __init__(self, value, *args, **kwargs):
82
def __init__(self, value):
99
83
self.value = value
100
super(AvahiError, self).__init__(value, *args, **kwargs)
101
def __unicode__(self):
102
return unicode(repr(self.value))
84
super(AvahiError, self).__init__()
85
def __str__(self):
86
return repr(self.value)
103
87
104
88
class AvahiServiceError(AvahiError):
105
89
pass
110
94
111
95
class AvahiService(object):
112
96
"""An Avahi (Zeroconf) service.
113
114
97
Attributes:
115
98
interface: integer; avahi.IF_UNSPEC or an interface index.
116
99
Used to optionally bind to the specified interface.
117
name: string; Example: u'Mandos'
118
type: string; Example: u'_mandos._tcp'.
100
name: string; Example: 'Mandos'
101
type: string; Example: '_mandos._tcp'.
119
102
See <http://www.dns-sd.org/ServiceTypes.html>
120
103
port: integer; what port to announce
121
104
TXT: list of strings; TXT record for the service
124
107
max_renames: integer; maximum number of renames
125
108
rename_count: integer; counter so we only rename after collisions
126
109
a sensible number of times
127
group: D-Bus Entry Group
128
server: D-Bus Server
129
bus: dbus.SystemBus()
130
110
"""
131
111
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):
112
servicetype = None, port = None, TXT = None, domain = "",
113
host = "", max_renames = 32768):
135
114
self.interface = interface
136
115
self.name = name
137
116
self.type = servicetype
138
117
self.port = port
139
self.TXT = TXT if TXT is not None else []
118
if TXT is None:
119
self.TXT = []
120
else:
121
self.TXT = TXT
140
122
self.domain = domain
141
123
self.host = host
142
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))
158
syslogger.setFormatter(logging.Formatter
159
(u'Mandos (%s) [%%(process)d]:'
160
u' %%(levelname)s: %%(message)s'
161
% self.name))
135
str(self.name))
136
syslogger.setFormatter(logging.Formatter\
137
('Mandos (%s): %%(levelname)s:'
138
' %%(message)s' % self.name))
162
139
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
178
.entry_group_state_changed)
148
global group
149
if group is None:
150
group = dbus.Interface\
151
(bus.get_object(avahi.DBUS_NAME,
152
server.EntryGroupNew()),
153
avahi.DBUS_INTERFACE_ENTRY_GROUP)
154
group.connect_to_signal('StateChanged',
155
entry_group_state_changed)
179
156
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
180
self.name, self.type)
181
self.group.AddService(
182
self.interface,
183
self.protocol,
184
dbus.UInt32(0), # flags
185
self.name, self.type,
186
self.domain, self.host,
187
dbus.UInt16(self.port),
188
avahi.string_array_to_txt_array(self.TXT))
189
self.group.Commit()
190
def entry_group_state_changed(self, state, error):
191
"""Derived from the Avahi example code"""
192
logger.debug(u"Avahi state change: %i", state)
193
194
if state == avahi.ENTRY_GROUP_ESTABLISHED:
195
logger.debug(u"Zeroconf service established.")
196
elif state == avahi.ENTRY_GROUP_COLLISION:
197
logger.warning(u"Zeroconf service name collision.")
198
self.rename()
199
elif state == avahi.ENTRY_GROUP_FAILURE:
200
logger.critical(u"Avahi: Error in group state changed %s",
201
unicode(error))
202
raise AvahiGroupError(u"State changed: %s"
203
% unicode(error))
204
def cleanup(self):
205
"""Derived from the Avahi example code"""
206
if self.group is not None:
207
self.group.Free()
208
self.group = None
209
def server_state_changed(self, state):
210
"""Derived from the Avahi example code"""
211
if state == avahi.SERVER_COLLISION:
212
logger.error(u"Zeroconf server name collision")
213
self.remove()
214
elif state == avahi.SERVER_RUNNING:
215
self.add()
216
def activate(self):
217
"""Derived from the Avahi example code"""
218
if self.server is None:
219
self.server = dbus.Interface(
220
self.bus.get_object(avahi.DBUS_NAME,
221
avahi.DBUS_PATH_SERVER),
222
avahi.DBUS_INTERFACE_SERVER)
223
self.server.connect_to_signal(u"StateChanged",
224
self.server_state_changed)
225
self.server_state_changed(self.server.GetState())
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
226
171
227
172
228
173
class Client(object):
229
174
"""A representation of a client host served by this server.
230
231
175
Attributes:
232
name: string; from the config file, used in log messages and
233
D-Bus identifiers
176
name: string; from the config file, used in log messages
234
177
fingerprint: string (40 or 32 hexadecimal digits); used to
235
178
uniquely identify the client
236
secret: bytestring; sent verbatim (over TLS) to client
237
host: string; available for use by the checker command
238
created: datetime.datetime(); (UTC) object creation
239
last_enabled: datetime.datetime(); (UTC)
240
enabled: bool()
241
last_checked_ok: datetime.datetime(); (UTC) or None
242
timeout: datetime.timedelta(); How long from last_checked_ok
243
until this client is invalid
244
interval: datetime.timedelta(); How often to start a new checker
245
disable_hook: If set, called by disable() as disable_hook(self)
246
checker: subprocess.Popen(); a running checker process used
247
to see if the client lives.
248
'None' if no process is running.
179
secret: bytestring; sent verbatim (over TLS) to client
180
host: string; available for use by the checker command
181
created: datetime.datetime(); object creation, not client host
182
last_checked_ok: datetime.datetime() or None if not yet checked OK
183
timeout: datetime.timedelta(); How long from last_checked_ok
184
until this client is invalid
185
interval: datetime.timedelta(); How often to start a new checker
186
stop_hook: If set, called by stop() as stop_hook(self)
187
checker: subprocess.Popen(); a running checker process used
188
to see if the client lives.
189
'None' if no process is running.
249
190
checker_initiator_tag: a gobject event source tag, or None
250
disable_initiator_tag: - '' -
191
stop_initiator_tag: - '' -
251
192
checker_callback_tag: - '' -
252
193
checker_command: string; External command which is run to check if
253
194
client lives. %() expansions are done at
254
195
runtime with vars(self) as dict, so that for
255
196
instance %(name)s can be used in the command.
256
current_checker_command: string; current running checker_command
197
Private attibutes:
198
_timeout: Real variable for 'timeout'
199
_interval: Real variable for 'interval'
200
_timeout_milliseconds: Used when calling gobject.timeout_add()
201
_interval_milliseconds: - '' -
257
202
"""
258
259
@staticmethod
260
def _datetime_to_milliseconds(dt):
261
"Convert a datetime.datetime() to milliseconds"
262
return ((dt.days * 24 * 60 * 60 * 1000)
263
+ (dt.seconds * 1000)
264
+ (dt.microseconds // 1000))
265
266
def timeout_milliseconds(self):
267
"Return the 'timeout' attribute in milliseconds"
268
return self._datetime_to_milliseconds(self.timeout)
269
270
def interval_milliseconds(self):
271
"Return the 'interval' attribute in milliseconds"
272
return self._datetime_to_milliseconds(self.interval)
273
274
def __init__(self, name = None, disable_hook=None, config=None):
203
def _set_timeout(self, timeout):
204
"Setter function for 'timeout' attribute"
205
self._timeout = timeout
206
self._timeout_milliseconds = ((self.timeout.days
207
* 24 * 60 * 60 * 1000)
208
+ (self.timeout.seconds * 1000)
209
+ (self.timeout.microseconds
210
// 1000))
211
timeout = property(lambda self: self._timeout,
212
_set_timeout)
213
del _set_timeout
214
def _set_interval(self, interval):
215
"Setter function for 'interval' attribute"
216
self._interval = interval
217
self._interval_milliseconds = ((self.interval.days
218
* 24 * 60 * 60 * 1000)
219
+ (self.interval.seconds
220
* 1000)
221
+ (self.interval.microseconds
222
// 1000))
223
interval = property(lambda self: self._interval,
224
_set_interval)
225
del _set_interval
226
def __init__(self, name = None, stop_hook=None, config=None):
275
227
"""Note: the 'checker' key in 'config' sets the
276
228
'checker_command' attribute and *not* the 'checker'
277
229
attribute."""
278
self.name = name
279
230
if config is None:
280
231
config = {}
232
self.name = name
281
233
logger.debug(u"Creating client %r", self.name)
282
234
# Uppercase and remove spaces from fingerprint for later
283
235
# comparison purposes with return value from the fingerprint()
284
236
# function
285
self.fingerprint = (config[u"fingerprint"].upper()
286
.replace(u" ", u""))
237
self.fingerprint = config["fingerprint"].upper()\
238
.replace(u" ", u"")
287
239
logger.debug(u" Fingerprint: %s", self.fingerprint)
288
if u"secret" in config:
289
self.secret = config[u"secret"].decode(u"base64")
290
elif u"secfile" in config:
291
with closing(open(os.path.expanduser
292
(os.path.expandvars
293
(config[u"secfile"])))) as secfile:
294
self.secret = secfile.read()
240
if "secret" in config:
241
self.secret = config["secret"].decode(u"base64")
242
elif "secfile" in config:
243
secfile = open(config["secfile"])
244
self.secret = secfile.read()
245
secfile.close()
295
246
else:
296
247
raise TypeError(u"No secret or secfile for client %s"
297
248
% self.name)
298
self.host = config.get(u"host", u"")
299
self.created = datetime.datetime.utcnow()
300
self.enabled = False
301
self.last_enabled = None
249
self.host = config.get("host", "")
250
self.created = datetime.datetime.now()
302
251
self.last_checked_ok = None
303
self.timeout = string_to_delta(config[u"timeout"])
304
self.interval = string_to_delta(config[u"interval"])
305
self.disable_hook = disable_hook
252
self.timeout = string_to_delta(config["timeout"])
253
self.interval = string_to_delta(config["interval"])
254
self.stop_hook = stop_hook
306
255
self.checker = None
307
256
self.checker_initiator_tag = None
308
self.disable_initiator_tag = None
257
self.stop_initiator_tag = None
309
258
self.checker_callback_tag = None
310
self.checker_command = config[u"checker"]
311
self.current_checker_command = None
312
self.last_connect = None
313
314
def enable(self):
259
self.check_command = config["checker"]
260
def start(self):
315
261
"""Start this client's checker and timeout hooks"""
316
if getattr(self, u"enabled", False):
317
# Already enabled
318
return
319
self.last_enabled = datetime.datetime.utcnow()
320
262
# Schedule a new checker to be started an 'interval' from now,
321
263
# and every interval from then on.
322
self.checker_initiator_tag = (gobject.timeout_add
323
(self.interval_milliseconds(),
324
self.start_checker))
264
self.checker_initiator_tag = gobject.timeout_add\
265
(self._interval_milliseconds,
266
self.start_checker)
325
267
# Also start a new checker *right now*.
326
268
self.start_checker()
327
# Schedule a disable() when 'timeout' has passed
328
self.disable_initiator_tag = (gobject.timeout_add
329
(self.timeout_milliseconds(),
330
self.disable))
331
self.enabled = True
332
333
def disable(self):
334
"""Disable this client."""
335
if not getattr(self, "enabled", False):
269
# Schedule a stop() when 'timeout' has passed
270
self.stop_initiator_tag = gobject.timeout_add\
271
(self._timeout_milliseconds,
272
self.stop)
273
def stop(self):
274
"""Stop this client.
275
The possibility that a client might be restarted is left open,
276
but not currently used."""
277
# If this client doesn't have a secret, it is already stopped.
278
if hasattr(self, "secret") and self.secret:
279
logger.info(u"Stopping client %s", self.name)
280
self.secret = None
281
else:
336
282
return False
337
logger.info(u"Disabling client %s", self.name)
338
if getattr(self, u"disable_initiator_tag", False):
339
gobject.source_remove(self.disable_initiator_tag)
340
self.disable_initiator_tag = None
341
if getattr(self, u"checker_initiator_tag", False):
283
if getattr(self, "stop_initiator_tag", False):
284
gobject.source_remove(self.stop_initiator_tag)
285
self.stop_initiator_tag = None
286
if getattr(self, "checker_initiator_tag", False):
342
287
gobject.source_remove(self.checker_initiator_tag)
343
288
self.checker_initiator_tag = None
344
289
self.stop_checker()
345
if self.disable_hook:
346
self.disable_hook(self)
347
self.enabled = False
290
if self.stop_hook:
291
self.stop_hook(self)
348
292
# Do not run this again if called by a gobject.timeout_add
349
293
return False
350
351
294
def __del__(self):
352
self.disable_hook = None
353
self.disable()
354
355
def checker_callback(self, pid, condition, command):
295
self.stop_hook = None
296
self.stop()
297
def checker_callback(self, pid, condition):
356
298
"""The checker has completed, so take appropriate actions."""
299
now = datetime.datetime.now()
357
300
self.checker_callback_tag = None
358
301
self.checker = None
359
if os.WIFEXITED(condition):
360
exitstatus = os.WEXITSTATUS(condition)
361
if exitstatus == 0:
362
logger.info(u"Checker for %(name)s succeeded",
363
vars(self))
364
self.checked_ok()
365
else:
366
logger.info(u"Checker for %(name)s failed",
367
vars(self))
368
else:
302
if os.WIFEXITED(condition) \
303
and (os.WEXITSTATUS(condition) == 0):
304
logger.info(u"Checker for %(name)s succeeded",
305
vars(self))
306
self.last_checked_ok = now
307
gobject.source_remove(self.stop_initiator_tag)
308
self.stop_initiator_tag = gobject.timeout_add\
309
(self._timeout_milliseconds,
310
self.stop)
311
elif not os.WIFEXITED(condition):
369
312
logger.warning(u"Checker for %(name)s crashed?",
370
313
vars(self))
371
372
def checked_ok(self):
373
"""Bump up the timeout for this client.
374
375
This should only be called when the client has been seen,
376
alive and well.
377
"""
378
self.last_checked_ok = datetime.datetime.utcnow()
379
gobject.source_remove(self.disable_initiator_tag)
380
self.disable_initiator_tag = (gobject.timeout_add
381
(self.timeout_milliseconds(),
382
self.disable))
383
314
else:
315
logger.info(u"Checker for %(name)s failed",
316
vars(self))
384
317
def start_checker(self):
385
318
"""Start a new checker subprocess if one is not running.
386
387
319
If a checker already exists, leave it running and do
388
320
nothing."""
389
321
# The reason for not killing a running checker is that if we
394
326
# checkers alone, the checker would have to take more time
395
327
# than 'timeout' for the client to be declared invalid, which
396
328
# is as it should be.
397
398
# If a checker exists, make sure it is not a zombie
399
if self.checker is not None:
400
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
401
if pid:
402
logger.warning(u"Checker was a zombie")
403
gobject.source_remove(self.checker_callback_tag)
404
self.checker_callback(pid, status,
405
self.current_checker_command)
406
# Start a new checker if needed
407
329
if self.checker is None:
408
330
try:
409
# In case checker_command has exactly one % operator
410
command = self.checker_command % self.host
331
# In case check_command has exactly one % operator
332
command = self.check_command % self.host
411
333
except TypeError:
412
334
# Escape attributes for the shell
413
escaped_attrs = dict((key,
414
re.escape(unicode(str(val),
415
errors=
416
u'replace')))
335
escaped_attrs = dict((key, re.escape(str(val)))
417
336
for key, val in
418
337
vars(self).iteritems())
419
338
try:
420
command = self.checker_command % escaped_attrs
339
command = self.check_command % escaped_attrs
421
340
except TypeError, error:
422
341
logger.error(u'Could not format string "%s":'
423
u' %s', self.checker_command, error)
342
u' %s', self.check_command, error)
424
343
return True # Try again later
425
self.current_checker_command = command
426
344
try:
427
345
logger.info(u"Starting checker %r for %s",
428
346
command, self.name)
432
350
# always replaced by /dev/null.)
433
351
self.checker = subprocess.Popen(command,
434
352
close_fds=True,
435
shell=True, cwd=u"/")
436
self.checker_callback_tag = (gobject.child_watch_add
437
(self.checker.pid,
438
self.checker_callback,
439
data=command))
440
# The checker may have completed before the gobject
441
# watch was added. Check for this.
442
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
443
if pid:
444
gobject.source_remove(self.checker_callback_tag)
445
self.checker_callback(pid, status, command)
353
shell=True, cwd="/")
354
self.checker_callback_tag = gobject.child_watch_add\
355
(self.checker.pid,
356
self.checker_callback)
446
357
except OSError, error:
447
358
logger.error(u"Failed to start subprocess: %s",
448
359
error)
449
360
# Re-run this periodically if run by gobject.timeout_add
450
361
return True
451
452
362
def stop_checker(self):
453
363
"""Force the checker process, if any, to stop."""
454
364
if self.checker_callback_tag:
455
365
gobject.source_remove(self.checker_callback_tag)
456
366
self.checker_callback_tag = None
457
if getattr(self, u"checker", None) is None:
367
if getattr(self, "checker", None) is None:
458
368
return
459
369
logger.debug(u"Stopping checker for %(name)s", vars(self))
460
370
try:
466
376
if error.errno != errno.ESRCH: # No such process
467
377
raise
468
378
self.checker = None
469
470
379
def still_valid(self):
471
380
"""Has the timeout not yet passed for this client?"""
472
if not getattr(self, u"enabled", False):
473
return False
474
now = datetime.datetime.utcnow()
381
now = datetime.datetime.now()
475
382
if self.last_checked_ok is None:
476
383
return now < (self.created + self.timeout)
477
384
else:
478
385
return now < (self.last_checked_ok + self.timeout)
479
386
480
387
481
class ClientDBus(Client, dbus.service.Object):
482
"""A Client class using D-Bus
483
484
Attributes:
485
dbus_object_path: dbus.ObjectPath
486
bus: dbus.SystemBus()
487
"""
488
# dbus.service.Object doesn't use super(), so we can't either.
489
490
def __init__(self, bus = None, *args, **kwargs):
491
self.bus = bus
492
Client.__init__(self, *args, **kwargs)
493
# Only now, when this client is initialized, can it show up on
494
# the D-Bus
495
self.dbus_object_path = (dbus.ObjectPath
496
(u"/clients/"
497
+ self.name.replace(u".", u"_")))
498
dbus.service.Object.__init__(self, self.bus,
499
self.dbus_object_path)
500
501
@staticmethod
502
def _datetime_to_dbus(dt, variant_level=0):
503
"""Convert a UTC datetime.datetime() to a D-Bus type."""
504
return dbus.String(dt.isoformat(),
505
variant_level=variant_level)
506
507
def enable(self):
508
oldstate = getattr(self, u"enabled", False)
509
r = Client.enable(self)
510
if oldstate != self.enabled:
511
# Emit D-Bus signals
512
self.PropertyChanged(dbus.String(u"enabled"),
513
dbus.Boolean(True, variant_level=1))
514
self.PropertyChanged(
515
dbus.String(u"last_enabled"),
516
self._datetime_to_dbus(self.last_enabled,
517
variant_level=1))
518
return r
519
520
def disable(self, signal = True):
521
oldstate = getattr(self, u"enabled", False)
522
r = Client.disable(self)
523
if signal and oldstate != self.enabled:
524
# Emit D-Bus signal
525
self.PropertyChanged(dbus.String(u"enabled"),
526
dbus.Boolean(False, variant_level=1))
527
return r
528
529
def __del__(self, *args, **kwargs):
530
try:
531
self.remove_from_connection()
532
except LookupError:
533
pass
534
if hasattr(dbus.service.Object, u"__del__"):
535
dbus.service.Object.__del__(self, *args, **kwargs)
536
Client.__del__(self, *args, **kwargs)
537
538
def checker_callback(self, pid, condition, command,
539
*args, **kwargs):
540
self.checker_callback_tag = None
541
self.checker = None
542
# Emit D-Bus signal
543
self.PropertyChanged(dbus.String(u"checker_running"),
544
dbus.Boolean(False, variant_level=1))
545
if os.WIFEXITED(condition):
546
exitstatus = os.WEXITSTATUS(condition)
547
# Emit D-Bus signal
548
self.CheckerCompleted(dbus.Int16(exitstatus),
549
dbus.Int64(condition),
550
dbus.String(command))
551
else:
552
# Emit D-Bus signal
553
self.CheckerCompleted(dbus.Int16(-1),
554
dbus.Int64(condition),
555
dbus.String(command))
556
557
return Client.checker_callback(self, pid, condition, command,
558
*args, **kwargs)
559
560
def checked_ok(self, *args, **kwargs):
561
r = Client.checked_ok(self, *args, **kwargs)
562
# Emit D-Bus signal
563
self.PropertyChanged(
564
dbus.String(u"last_checked_ok"),
565
(self._datetime_to_dbus(self.last_checked_ok,
566
variant_level=1)))
567
return r
568
569
def start_checker(self, *args, **kwargs):
570
old_checker = self.checker
571
if self.checker is not None:
572
old_checker_pid = self.checker.pid
573
else:
574
old_checker_pid = None
575
r = Client.start_checker(self, *args, **kwargs)
576
# Only if new checker process was started
577
if (self.checker is not None
578
and old_checker_pid != self.checker.pid):
579
# Emit D-Bus signal
580
self.CheckerStarted(self.current_checker_command)
581
self.PropertyChanged(
582
dbus.String(u"checker_running"),
583
dbus.Boolean(True, variant_level=1))
584
return r
585
586
def stop_checker(self, *args, **kwargs):
587
old_checker = getattr(self, u"checker", None)
588
r = Client.stop_checker(self, *args, **kwargs)
589
if (old_checker is not None
590
and getattr(self, u"checker", None) is None):
591
self.PropertyChanged(dbus.String(u"checker_running"),
592
dbus.Boolean(False, variant_level=1))
593
return r
594
595
## D-Bus methods & signals
596
_interface = u"se.bsnet.fukt.Mandos.Client"
597
598
# CheckedOK - method
599
@dbus.service.method(_interface)
600
def CheckedOK(self):
601
return self.checked_ok()
602
603
# CheckerCompleted - signal
604
@dbus.service.signal(_interface, signature=u"nxs")
605
def CheckerCompleted(self, exitcode, waitstatus, command):
606
"D-Bus signal"
607
pass
608
609
# CheckerStarted - signal
610
@dbus.service.signal(_interface, signature=u"s")
611
def CheckerStarted(self, command):
612
"D-Bus signal"
613
pass
614
615
# GetAllProperties - method
616
@dbus.service.method(_interface, out_signature=u"a{sv}")
617
def GetAllProperties(self):
618
"D-Bus method"
619
return dbus.Dictionary({
620
dbus.String(u"name"):
621
dbus.String(self.name, variant_level=1),
622
dbus.String(u"fingerprint"):
623
dbus.String(self.fingerprint, variant_level=1),
624
dbus.String(u"host"):
625
dbus.String(self.host, variant_level=1),
626
dbus.String(u"created"):
627
self._datetime_to_dbus(self.created,
628
variant_level=1),
629
dbus.String(u"last_enabled"):
630
(self._datetime_to_dbus(self.last_enabled,
631
variant_level=1)
632
if self.last_enabled is not None
633
else dbus.Boolean(False, variant_level=1)),
634
dbus.String(u"enabled"):
635
dbus.Boolean(self.enabled, variant_level=1),
636
dbus.String(u"last_checked_ok"):
637
(self._datetime_to_dbus(self.last_checked_ok,
638
variant_level=1)
639
if self.last_checked_ok is not None
640
else dbus.Boolean (False, variant_level=1)),
641
dbus.String(u"timeout"):
642
dbus.UInt64(self.timeout_milliseconds(),
643
variant_level=1),
644
dbus.String(u"interval"):
645
dbus.UInt64(self.interval_milliseconds(),
646
variant_level=1),
647
dbus.String(u"checker"):
648
dbus.String(self.checker_command,
649
variant_level=1),
650
dbus.String(u"checker_running"):
651
dbus.Boolean(self.checker is not None,
652
variant_level=1),
653
dbus.String(u"object_path"):
654
dbus.ObjectPath(self.dbus_object_path,
655
variant_level=1)
656
}, signature=u"sv")
657
658
# IsStillValid - method
659
@dbus.service.method(_interface, out_signature=u"b")
660
def IsStillValid(self):
661
return self.still_valid()
662
663
# PropertyChanged - signal
664
@dbus.service.signal(_interface, signature=u"sv")
665
def PropertyChanged(self, property, value):
666
"D-Bus signal"
667
pass
668
669
# ReceivedSecret - signal
670
@dbus.service.signal(_interface)
671
def ReceivedSecret(self):
672
"D-Bus signal"
673
pass
674
675
# Rejected - signal
676
@dbus.service.signal(_interface)
677
def Rejected(self):
678
"D-Bus signal"
679
pass
680
681
# SetChecker - method
682
@dbus.service.method(_interface, in_signature=u"s")
683
def SetChecker(self, checker):
684
"D-Bus setter method"
685
self.checker_command = checker
686
# Emit D-Bus signal
687
self.PropertyChanged(dbus.String(u"checker"),
688
dbus.String(self.checker_command,
689
variant_level=1))
690
691
# SetHost - method
692
@dbus.service.method(_interface, in_signature=u"s")
693
def SetHost(self, host):
694
"D-Bus setter method"
695
self.host = host
696
# Emit D-Bus signal
697
self.PropertyChanged(dbus.String(u"host"),
698
dbus.String(self.host, variant_level=1))
699
700
# SetInterval - method
701
@dbus.service.method(_interface, in_signature=u"t")
702
def SetInterval(self, milliseconds):
703
self.interval = datetime.timedelta(0, 0, 0, milliseconds)
704
# Emit D-Bus signal
705
self.PropertyChanged(dbus.String(u"interval"),
706
(dbus.UInt64(self
707
.interval_milliseconds(),
708
variant_level=1)))
709
710
# SetSecret - method
711
@dbus.service.method(_interface, in_signature=u"ay",
712
byte_arrays=True)
713
def SetSecret(self, secret):
714
"D-Bus setter method"
715
self.secret = str(secret)
716
717
# SetTimeout - method
718
@dbus.service.method(_interface, in_signature=u"t")
719
def SetTimeout(self, milliseconds):
720
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
721
# Emit D-Bus signal
722
self.PropertyChanged(dbus.String(u"timeout"),
723
(dbus.UInt64(self.timeout_milliseconds(),
724
variant_level=1)))
725
726
# Enable - method
727
@dbus.service.method(_interface)
728
def Enable(self):
729
"D-Bus method"
730
self.enable()
731
732
# StartChecker - method
733
@dbus.service.method(_interface)
734
def StartChecker(self):
735
"D-Bus method"
736
self.start_checker()
737
738
# Disable - method
739
@dbus.service.method(_interface)
740
def Disable(self):
741
"D-Bus method"
742
self.disable()
743
744
# StopChecker - method
745
@dbus.service.method(_interface)
746
def StopChecker(self):
747
self.stop_checker()
748
749
del _interface
750
751
752
class ClientHandler(socketserver.BaseRequestHandler, object):
753
"""A class to handle client connections.
754
755
Instantiated once for each connection to handle it.
388
def peer_certificate(session):
389
"Return the peer's OpenPGP certificate as a bytestring"
390
# If not an OpenPGP certificate...
391
if gnutls.library.functions.gnutls_certificate_type_get\
392
(session._c_object) \
393
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP:
394
# ...do the normal thing
395
return session.peer_certificate
396
list_size = ctypes.c_uint()
397
cert_list = gnutls.library.functions.gnutls_certificate_get_peers\
398
(session._c_object, ctypes.byref(list_size))
399
if list_size.value == 0:
400
return None
401
cert = cert_list[0]
402
return ctypes.string_at(cert.data, cert.size)
403
404
405
def fingerprint(openpgp):
406
"Convert an OpenPGP bytestring to a hexdigit fingerprint string"
407
# New GnuTLS "datum" with the OpenPGP public key
408
datum = gnutls.library.types.gnutls_datum_t\
409
(ctypes.cast(ctypes.c_char_p(openpgp),
410
ctypes.POINTER(ctypes.c_ubyte)),
411
ctypes.c_uint(len(openpgp)))
412
# New empty GnuTLS certificate
413
crt = gnutls.library.types.gnutls_openpgp_crt_t()
414
gnutls.library.functions.gnutls_openpgp_crt_init\
415
(ctypes.byref(crt))
416
# Import the OpenPGP public key into the certificate
417
gnutls.library.functions.gnutls_openpgp_crt_import\
418
(crt, ctypes.byref(datum),
419
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
420
# Verify the self signature in the key
421
crtverify = ctypes.c_uint()
422
gnutls.library.functions.gnutls_openpgp_crt_verify_self\
423
(crt, 0, ctypes.byref(crtverify))
424
if crtverify.value != 0:
425
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
426
raise gnutls.errors.CertificateSecurityError("Verify failed")
427
# New buffer for the fingerprint
428
buf = ctypes.create_string_buffer(20)
429
buf_len = ctypes.c_size_t()
430
# Get the fingerprint from the certificate into the buffer
431
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint\
432
(crt, ctypes.byref(buf), ctypes.byref(buf_len))
433
# Deinit the certificate
434
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
435
# Convert the buffer to a Python bytestring
436
fpr = ctypes.string_at(buf, buf_len.value)
437
# Convert the bytestring to hexadecimal notation
438
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
439
return hex_fpr
440
441
442
class TCP_handler(SocketServer.BaseRequestHandler, object):
443
"""A TCP request handler class.
444
Instantiated by IPv6_TCPServer for each request to handle it.
756
445
Note: This will run in its own forked process."""
757
446
758
447
def handle(self):
759
448
logger.info(u"TCP connection from: %s",
760
unicode(self.client_address))
761
logger.debug(u"IPC Pipe FD: %d", self.server.pipe[1])
762
# Open IPC pipe to parent process
763
with closing(os.fdopen(self.server.pipe[1], u"w", 1)) as ipc:
764
session = (gnutls.connection
765
.ClientSession(self.request,
766
gnutls.connection
767
.X509Credentials()))
768
769
line = self.request.makefile().readline()
770
logger.debug(u"Protocol version: %r", line)
771
try:
772
if int(line.strip().split()[0]) > 1:
773
raise RuntimeError
774
except (ValueError, IndexError, RuntimeError), error:
775
logger.error(u"Unknown protocol version: %s", error)
776
return
777
778
# Note: gnutls.connection.X509Credentials is really a
779
# generic GnuTLS certificate credentials object so long as
780
# no X.509 keys are added to it. Therefore, we can use it
781
# here despite using OpenPGP certificates.
782
783
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
784
# u"+AES-256-CBC", u"+SHA1",
785
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
786
# u"+DHE-DSS"))
787
# Use a fallback default, since this MUST be set.
788
priority = self.server.gnutls_priority
789
if priority is None:
790
priority = u"NORMAL"
791
(gnutls.library.functions
792
.gnutls_priority_set_direct(session._c_object,
793
priority, None))
794
795
try:
796
session.handshake()
797
except gnutls.errors.GNUTLSError, error:
798
logger.warning(u"Handshake failed: %s", error)
799
# Do not run session.bye() here: the session is not
800
# established. Just abandon the request.
801
return
802
logger.debug(u"Handshake succeeded")
803
try:
804
fpr = self.fingerprint(self.peer_certificate(session))
805
except (TypeError, gnutls.errors.GNUTLSError), error:
806
logger.warning(u"Bad certificate: %s", error)
807
session.bye()
808
return
809
logger.debug(u"Fingerprint: %s", fpr)
810
811
for c in self.server.clients:
812
if c.fingerprint == fpr:
813
client = c
814
break
815
else:
816
ipc.write(u"NOTFOUND %s %s\n"
817
% (fpr, unicode(self.client_address)))
818
session.bye()
819
return
820
# Have to check if client.still_valid(), since it is
821
# possible that the client timed out while establishing
822
# the GnuTLS session.
823
if not client.still_valid():
824
ipc.write(u"INVALID %s\n" % client.name)
825
session.bye()
826
return
827
ipc.write(u"SENDING %s\n" % client.name)
828
sent_size = 0
829
while sent_size < len(client.secret):
830
sent = session.send(client.secret[sent_size:])
831
logger.debug(u"Sent: %d, remaining: %d",
832
sent, len(client.secret)
833
- (sent_size + sent))
834
sent_size += sent
835
session.bye()
836
837
@staticmethod
838
def peer_certificate(session):
839
"Return the peer's OpenPGP certificate as a bytestring"
840
# If not an OpenPGP certificate...
841
if (gnutls.library.functions
842
.gnutls_certificate_type_get(session._c_object)
843
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
844
# ...do the normal thing
845
return session.peer_certificate
846
list_size = ctypes.c_uint(1)
847
cert_list = (gnutls.library.functions
848
.gnutls_certificate_get_peers
849
(session._c_object, ctypes.byref(list_size)))
850
if not bool(cert_list) and list_size.value != 0:
851
raise gnutls.errors.GNUTLSError(u"error getting peer"
852
u" certificate")
853
if list_size.value == 0:
854
return None
855
cert = cert_list[0]
856
return ctypes.string_at(cert.data, cert.size)
857
858
@staticmethod
859
def fingerprint(openpgp):
860
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
861
# New GnuTLS "datum" with the OpenPGP public key
862
datum = (gnutls.library.types
863
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
864
ctypes.POINTER
865
(ctypes.c_ubyte)),
866
ctypes.c_uint(len(openpgp))))
867
# New empty GnuTLS certificate
868
crt = gnutls.library.types.gnutls_openpgp_crt_t()
869
(gnutls.library.functions
870
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
871
# Import the OpenPGP public key into the certificate
872
(gnutls.library.functions
873
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
874
gnutls.library.constants
875
.GNUTLS_OPENPGP_FMT_RAW))
876
# Verify the self signature in the key
877
crtverify = ctypes.c_uint()
878
(gnutls.library.functions
879
.gnutls_openpgp_crt_verify_self(crt, 0,
880
ctypes.byref(crtverify)))
881
if crtverify.value != 0:
882
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
883
raise (gnutls.errors.CertificateSecurityError
884
(u"Verify failed"))
885
# New buffer for the fingerprint
886
buf = ctypes.create_string_buffer(20)
887
buf_len = ctypes.c_size_t()
888
# Get the fingerprint from the certificate into the buffer
889
(gnutls.library.functions
890
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
891
ctypes.byref(buf_len)))
892
# Deinit the certificate
893
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
894
# Convert the buffer to a Python bytestring
895
fpr = ctypes.string_at(buf, buf_len.value)
896
# Convert the bytestring to hexadecimal notation
897
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
898
return hex_fpr
899
900
901
class ForkingMixInWithPipe(socketserver.ForkingMixIn, object):
902
"""Like socketserver.ForkingMixIn, but also pass a pipe."""
903
def process_request(self, request, client_address):
904
"""Overrides and wraps the original process_request().
905
906
This function creates a new pipe in self.pipe
907
"""
908
self.pipe = os.pipe()
909
super(ForkingMixInWithPipe,
910
self).process_request(request, client_address)
911
os.close(self.pipe[1]) # close write end
912
self.add_pipe(self.pipe[0])
913
def add_pipe(self, pipe):
914
"""Dummy function; override as necessary"""
915
os.close(pipe)
916
917
918
class IPv6_TCPServer(ForkingMixInWithPipe,
919
socketserver.TCPServer, object):
920
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
921
449
unicode(self.client_address))
450
session = gnutls.connection.ClientSession\
451
(self.request, gnutls.connection.X509Credentials())
452
453
line = self.request.makefile().readline()
454
logger.debug(u"Protocol version: %r", line)
455
try:
456
if int(line.strip().split()[0]) > 1:
457
raise RuntimeError
458
except (ValueError, IndexError, RuntimeError), error:
459
logger.error(u"Unknown protocol version: %s", error)
460
return
461
462
# Note: gnutls.connection.X509Credentials is really a generic
463
# GnuTLS certificate credentials object so long as no X.509
464
# keys are added to it. Therefore, we can use it here despite
465
# using OpenPGP certificates.
466
467
#priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
468
# "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
469
# "+DHE-DSS"))
470
priority = "NORMAL" # Fallback default, since this
471
# MUST be set.
472
if self.server.settings["priority"]:
473
priority = self.server.settings["priority"]
474
gnutls.library.functions.gnutls_priority_set_direct\
475
(session._c_object, priority, None)
476
477
try:
478
session.handshake()
479
except gnutls.errors.GNUTLSError, error:
480
logger.warning(u"Handshake failed: %s", error)
481
# Do not run session.bye() here: the session is not
482
# established. Just abandon the request.
483
return
484
try:
485
fpr = fingerprint(peer_certificate(session))
486
except (TypeError, gnutls.errors.GNUTLSError), error:
487
logger.warning(u"Bad certificate: %s", error)
488
session.bye()
489
return
490
logger.debug(u"Fingerprint: %s", fpr)
491
client = None
492
for c in self.server.clients:
493
if c.fingerprint == fpr:
494
client = c
495
break
496
if not client:
497
logger.warning(u"Client not found for fingerprint: %s",
498
fpr)
499
session.bye()
500
return
501
# Have to check if client.still_valid(), since it is possible
502
# that the client timed out while establishing the GnuTLS
503
# session.
504
if not client.still_valid():
505
logger.warning(u"Client %(name)s is invalid",
506
vars(client))
507
session.bye()
508
return
509
sent_size = 0
510
while sent_size < len(client.secret):
511
sent = session.send(client.secret[sent_size:])
512
logger.debug(u"Sent: %d, remaining: %d",
513
sent, len(client.secret)
514
- (sent_size + sent))
515
sent_size += sent
516
session.bye()
517
518
519
class IPv6_TCPServer(SocketServer.ForkingTCPServer, object):
520
"""IPv6 TCP server. Accepts 'None' as address and/or port.
922
521
Attributes:
522
settings: Server settings
523
clients: Set() of Client objects
923
524
enabled: Boolean; whether this server is activated yet
924
interface: None or a network interface name (string)
925
use_ipv6: Boolean; to use IPv6 or not
926
525
"""
927
def __init__(self, server_address, RequestHandlerClass,
928
interface=None, use_ipv6=True):
929
self.interface = interface
930
if use_ipv6:
931
self.address_family = socket.AF_INET6
932
socketserver.TCPServer.__init__(self, server_address,
933
RequestHandlerClass)
526
address_family = socket.AF_INET6
527
def __init__(self, *args, **kwargs):
528
if "settings" in kwargs:
529
self.settings = kwargs["settings"]
530
del kwargs["settings"]
531
if "clients" in kwargs:
532
self.clients = kwargs["clients"]
533
del kwargs["clients"]
534
self.enabled = False
535
super(IPv6_TCPServer, self).__init__(*args, **kwargs)
934
536
def server_bind(self):
935
537
"""This overrides the normal server_bind() function
936
538
to bind to an interface if one was specified, and also NOT to
937
539
bind to an address or port if they were not specified."""
938
if self.interface is not None:
939
if SO_BINDTODEVICE is None:
940
logger.error(u"SO_BINDTODEVICE does not exist;"
941
u" cannot bind to interface %s",
942
self.interface)
943
else:
944
try:
945
self.socket.setsockopt(socket.SOL_SOCKET,
946
SO_BINDTODEVICE,
947
str(self.interface
948
+ u'\0'))
949
except socket.error, error:
950
if error[0] == errno.EPERM:
951
logger.error(u"No permission to"
952
u" bind to interface %s",
953
self.interface)
954
elif error[0] == errno.ENOPROTOOPT:
955
logger.error(u"SO_BINDTODEVICE not available;"
956
u" cannot bind to interface %s",
957
self.interface)
958
else:
959
raise
540
if self.settings["interface"]:
541
# 25 is from /usr/include/asm-i486/socket.h
542
SO_BINDTODEVICE = getattr(socket, "SO_BINDTODEVICE", 25)
543
try:
544
self.socket.setsockopt(socket.SOL_SOCKET,
545
SO_BINDTODEVICE,
546
self.settings["interface"])
547
except socket.error, error:
548
if error[0] == errno.EPERM:
549
logger.error(u"No permission to"
550
u" bind to interface %s",
551
self.settings["interface"])
552
else:
553
raise error
960
554
# Only bind(2) the socket if we really need to.
961
555
if self.server_address[0] or self.server_address[1]:
962
556
if not self.server_address[0]:
963
if self.address_family == socket.AF_INET6:
964
any_address = u"::" # in6addr_any
965
else:
966
any_address = socket.INADDR_ANY
967
self.server_address = (any_address,
557
in6addr_any = "::"
558
self.server_address = (in6addr_any,
968
559
self.server_address[1])
969
560
elif not self.server_address[1]:
970
561
self.server_address = (self.server_address[0],
971
562
0)
972
# if self.interface:
563
# if self.settings["interface"]:
973
564
# self.server_address = (self.server_address[0],
974
565
# 0, # port
975
566
# 0, # flowinfo
976
567
# if_nametoindex
977
# (self.interface))
978
return socketserver.TCPServer.server_bind(self)
979
980
981
class MandosServer(IPv6_TCPServer):
982
"""Mandos server.
983
984
Attributes:
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)
568
# (self.settings
569
# ["interface"]))
570
return super(IPv6_TCPServer, self).server_bind()
1004
571
def server_activate(self):
1005
572
if self.enabled:
1006
return socketserver.TCPServer.server_activate(self)
573
return super(IPv6_TCPServer, self).server_activate()
1007
574
def enable(self):
1008
575
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
1083
576
1084
577
1085
578
def string_to_delta(interval):
1086
579
"""Parse a string and return a datetime.timedelta
1087
1088
>>> string_to_delta(u'7d')
580
581
>>> string_to_delta('7d')
1089
582
datetime.timedelta(7)
1090
>>> string_to_delta(u'60s')
583
>>> string_to_delta('60s')
1091
584
datetime.timedelta(0, 60)
1092
>>> string_to_delta(u'60m')
585
>>> string_to_delta('60m')
1093
586
datetime.timedelta(0, 3600)
1094
>>> string_to_delta(u'24h')
587
>>> string_to_delta('24h')
1095
588
datetime.timedelta(1)
1096
589
>>> string_to_delta(u'1w')
1097
590
datetime.timedelta(7)
1098
>>> string_to_delta(u'5m 30s')
591
>>> string_to_delta('5m 30s')
1099
592
datetime.timedelta(0, 330)
1100
593
"""
1101
594
timevalue = datetime.timedelta(0)
1121
614
return timevalue
1122
615
1123
616
617
def server_state_changed(state):
618
"""Derived from the Avahi example code"""
619
if state == avahi.SERVER_COLLISION:
620
logger.error(u"Zeroconf server name collision")
621
service.remove()
622
elif state == avahi.SERVER_RUNNING:
623
service.add()
624
625
626
def entry_group_state_changed(state, error):
627
"""Derived from the Avahi example code"""
628
logger.debug(u"Avahi state change: %i", state)
629
630
if state == avahi.ENTRY_GROUP_ESTABLISHED:
631
logger.debug(u"Zeroconf service established.")
632
elif state == avahi.ENTRY_GROUP_COLLISION:
633
logger.warning(u"Zeroconf service name collision.")
634
service.rename()
635
elif state == avahi.ENTRY_GROUP_FAILURE:
636
logger.critical(u"Avahi: Error in group state changed %s",
637
unicode(error))
638
raise AvahiGroupError("State changed: %s", str(error))
639
1124
640
def if_nametoindex(interface):
1125
"""Call the C function if_nametoindex(), or equivalent
1126
1127
Note: This function cannot accept a unicode string."""
641
"""Call the C function if_nametoindex(), or equivalent"""
1128
642
global if_nametoindex
1129
643
try:
1130
if_nametoindex = (ctypes.cdll.LoadLibrary
1131
(ctypes.util.find_library(u"c"))
1132
.if_nametoindex)
644
if_nametoindex = ctypes.cdll.LoadLibrary\
645
(ctypes.util.find_library("c")).if_nametoindex
1133
646
except (OSError, AttributeError):
1134
logger.warning(u"Doing if_nametoindex the hard way")
647
if "struct" not in sys.modules:
648
import struct
649
if "fcntl" not in sys.modules:
650
import fcntl
1135
651
def if_nametoindex(interface):
1136
652
"Get an interface index the hard way, i.e. using fcntl()"
1137
653
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]
654
s = socket.socket()
655
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
656
struct.pack("16s16x", interface))
657
s.close()
658
interface_index = struct.unpack("I", ifreq[16:20])[0]
1144
659
return interface_index
1145
660
return if_nametoindex(interface)
1146
661
1147
662
1148
663
def daemon(nochdir = False, noclose = False):
1149
664
"""See daemon(3). Standard BSD Unix function.
1150
1151
665
This should really exist as os.daemon, but it doesn't (yet)."""
1152
666
if os.fork():
1153
667
sys.exit()
1154
668
os.setsid()
1155
669
if not nochdir:
1156
os.chdir(u"/")
670
os.chdir("/")
1157
671
if os.fork():
1158
672
sys.exit()
1159
673
if not noclose:
1161
675
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1162
676
if not stat.S_ISCHR(os.fstat(null).st_mode):
1163
677
raise OSError(errno.ENODEV,
1164
u"/dev/null not a character device")
678
"/dev/null not a character device")
1165
679
os.dup2(null, sys.stdin.fileno())
1166
680
os.dup2(null, sys.stdout.fileno())
1167
681
os.dup2(null, sys.stderr.fileno())
1170
684
1171
685
1172
686
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")
687
parser = OptionParser(version = "%%prog %s" % version)
688
parser.add_option("-i", "--interface", type="string",
689
metavar="IF", help="Bind to interface IF")
690
parser.add_option("-a", "--address", type="string",
691
help="Address to listen for requests on")
692
parser.add_option("-p", "--port", type="int",
693
help="Port number to receive requests on")
694
parser.add_option("--check", action="store_true", default=False,
695
help="Run self-test")
696
parser.add_option("--debug", action="store_true",
697
help="Debug mode; run in foreground and log to"
698
" terminal")
699
parser.add_option("--priority", type="string", help="GnuTLS"
700
" priority string (see GnuTLS documentation)")
701
parser.add_option("--servicename", type="string", metavar="NAME",
702
help="Zeroconf service name")
703
parser.add_option("--configdir", type="string",
704
default="/etc/mandos", metavar="DIR",
705
help="Directory to search for configuration"
706
" files")
1202
707
options = parser.parse_args()[0]
1203
708
1204
709
if options.check:
1207
712
sys.exit()
1208
713
1209
714
# 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",
715
server_defaults = { "interface": "",
716
"address": "",
717
"port": "",
718
"debug": "False",
719
"priority":
720
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
721
"servicename": "Mandos",
1219
722
}
1220
723
1221
724
# Parse config file for server-global settings
1222
server_config = configparser.SafeConfigParser(server_defaults)
725
server_config = ConfigParser.SafeConfigParser(server_defaults)
1223
726
del server_defaults
1224
server_config.read(os.path.join(options.configdir,
1225
u"mandos.conf"))
727
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1226
728
# Convert the SafeConfigParser object to a dict
1227
729
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")
730
# Use getboolean on the boolean config option
731
server_settings["debug"] = server_config.getboolean\
732
("DEFAULT", "debug")
1235
733
del server_config
1236
734
1237
735
# Override the settings from the config file with command line
1238
736
# 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"):
737
for option in ("interface", "address", "port", "debug",
738
"priority", "servicename", "configdir"):
1242
739
value = getattr(options, option)
1243
740
if value is not None:
1244
741
server_settings[option] = value
1245
742
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
743
# Now we have our good server settings in "server_settings"
1251
744
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"]
745
debug = server_settings["debug"]
1258
746
1259
747
if not debug:
1260
748
syslogger.setLevel(logging.WARNING)
1261
749
console.setLevel(logging.WARNING)
1262
750
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"]))
751
if server_settings["servicename"] != "Mandos":
752
syslogger.setFormatter(logging.Formatter\
753
('Mandos (%s): %%(levelname)s:'
754
' %%(message)s'
755
% server_settings["servicename"]))
1268
756
1269
757
# 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"",
758
client_defaults = { "timeout": "1h",
759
"interval": "5m",
760
"checker": "fping -q -- %(host)s",
761
"host": "",
1274
762
}
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:
763
client_config = ConfigParser.SafeConfigParser(client_defaults)
764
client_config.read(os.path.join(server_settings["configdir"],
765
"clients.conf"))
766
767
clients = Set()
768
tcp_server = IPv6_TCPServer((server_settings["address"],
769
server_settings["port"]),
770
TCP_handler,
771
settings=server_settings,
772
clients=clients)
773
pidfilename = "/var/run/mandos.pid"
774
try:
775
pidfile = open(pidfilename, "w")
776
except IOError, error:
777
logger.error("Could not open file %r", pidfilename)
778
779
uid = 65534
780
gid = 65534
781
try:
782
uid = pwd.getpwnam("mandos").pw_uid
783
except KeyError:
784
try:
785
uid = pwd.getpwnam("nobody").pw_uid
786
except KeyError:
787
pass
788
try:
789
gid = pwd.getpwnam("mandos").pw_gid
790
except KeyError:
791
try:
792
gid = pwd.getpwnam("nogroup").pw_gid
793
except KeyError:
794
pass
795
try:
796
os.setuid(uid)
1311
797
os.setgid(gid)
1312
os.setuid(uid)
1313
798
except OSError, error:
1314
799
if error[0] != errno.EPERM:
1315
800
raise error
1316
801
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))
802
global service
803
service = AvahiService(name = server_settings["servicename"],
804
servicetype = "_mandos._tcp", )
805
if server_settings["interface"]:
806
service.interface = if_nametoindex\
807
(server_settings["interface"])
1329
808
1330
809
global main_loop
810
global bus
811
global server
1331
812
# From the Avahi example code
1332
813
DBusGMainLoop(set_as_default=True )
1333
814
main_loop = gobject.MainLoop()
1334
815
bus = dbus.SystemBus()
816
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
817
avahi.DBUS_PATH_SERVER),
818
avahi.DBUS_INTERFACE_SERVER)
1335
819
# 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
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")
820
821
def remove_from_clients(client):
822
clients.remove(client)
823
if not clients:
824
logger.critical(u"No clients left, exiting")
825
sys.exit()
826
827
clients.update(Set(Client(name = section,
828
stop_hook = remove_from_clients,
829
config
830
= dict(client_config.items(section)))
831
for section in client_config.sections()))
832
if not clients:
833
logger.critical(u"No clients defined")
834
sys.exit(1)
1355
835
1356
836
if debug:
1357
837
# Redirect stdin so all checkers get /dev/null
1366
846
daemon()
1367
847
1368
848
try:
1369
with closing(pidfile):
1370
pid = os.getpid()
1371
pidfile.write(str(pid) + "\n")
849
pid = os.getpid()
850
pidfile.write(str(pid) + "\n")
851
pidfile.close()
1372
852
del pidfile
1373
853
except IOError:
1374
854
logger.error(u"Could not write to file %r with PID %d",
1380
860
1381
861
def cleanup():
1382
862
"Cleanup function; run on exit"
1383
service.cleanup()
863
global group
864
# From the Avahi example code
865
if not group is None:
866
group.Free()
867
group = None
868
# End of Avahi example code
1384
869
1385
while tcp_server.clients:
1386
client = tcp_server.clients.pop()
1387
client.disable_hook = None
1388
client.disable()
870
while clients:
871
client = clients.pop()
872
client.stop_hook = None
873
client.stop()
1389
874
1390
875
atexit.register(cleanup)
1391
876
1394
879
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1395
880
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1396
881
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()
882
for client in clients:
883
client.start()
1458
884
1459
885
tcp_server.enable()
1460
886
tcp_server.server_activate()
1461
887
1462
888
# Find out what port we got
1463
889
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())
890
logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
891
u" scope_id %d" % tcp_server.socket.getsockname())
1471
892
1472
893
#service.interface = tcp_server.socket.getsockname()[3]
1473
894
1474
895
try:
1475
896
# From the Avahi example code
897
server.connect_to_signal("StateChanged", server_state_changed)
1476
898
try:
1477
service.activate()
899
server_state_changed(server.GetState())
1478
900
except dbus.exceptions.DBusException, error:
1479
901
logger.critical(u"DBusException: %s", error)
1480
902
sys.exit(1)
1482
904
1483
905
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
1484
906
lambda *args, **kwargs:
1485
(tcp_server.handle_request
1486
(*args[2:], **kwargs) or True))
907
tcp_server.handle_request\
908
(*args[2:], **kwargs) or True)
1487
909
1488
910
logger.debug(u"Starting main loop")
1489
911
main_loop.run()
1490
912
except AvahiError, error:
1491
logger.critical(u"AvahiError: %s", error)
913
logger.critical(u"AvahiError: %s" + unicode(error))
1492
914
sys.exit(1)
1493
915
except KeyboardInterrupt:
1494
916
if debug:
1495
print >> sys.stderr
1496
logger.debug(u"Server received KeyboardInterrupt")
1497
logger.debug(u"Server exiting")
917
print
1498
918
1499
919
if __name__ == '__main__':
1500
920
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0