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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
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import subprocess
53
53
import atexit
54
54
import stat
55
55
import logging
56
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import logging.handlers
57
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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
65
60
import gobject
66
61
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
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'))
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
91
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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.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)
178
156
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
179
self.name, self.type)
180
self.group.AddService(
181
self.interface,
182
self.protocol,
183
dbus.UInt32(0), # flags
184
self.name, self.type,
185
self.domain, self.host,
186
dbus.UInt16(self.port),
187
avahi.string_array_to_txt_array(self.TXT))
188
self.group.Commit()
189
def entry_group_state_changed(self, state, error):
190
"""Derived from the Avahi example code"""
191
logger.debug(u"Avahi state change: %i", state)
192
193
if state == avahi.ENTRY_GROUP_ESTABLISHED:
194
logger.debug(u"Zeroconf service established.")
195
elif state == avahi.ENTRY_GROUP_COLLISION:
196
logger.warning(u"Zeroconf service name collision.")
197
self.rename()
198
elif state == avahi.ENTRY_GROUP_FAILURE:
199
logger.critical(u"Avahi: Error in group state changed %s",
200
unicode(error))
201
raise AvahiGroupError(u"State changed: %s"
202
% unicode(error))
203
def cleanup(self):
204
"""Derived from the Avahi example code"""
205
if self.group is not None:
206
self.group.Free()
207
self.group = None
208
def server_state_changed(self, state):
209
"""Derived from the Avahi example code"""
210
if state == avahi.SERVER_COLLISION:
211
logger.error(u"Zeroconf server name collision")
212
self.remove()
213
elif state == avahi.SERVER_RUNNING:
214
self.add()
215
def activate(self):
216
"""Derived from the Avahi example code"""
217
if self.server is None:
218
self.server = dbus.Interface(
219
self.bus.get_object(avahi.DBUS_NAME,
220
avahi.DBUS_PATH_SERVER),
221
avahi.DBUS_INTERFACE_SERVER)
222
self.server.connect_to_signal(u"StateChanged",
223
self.server_state_changed)
224
self.server_state_changed(self.server.GetState())
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
225
171
226
172
227
173
class Client(object):
228
174
"""A representation of a client host served by this server.
229
230
175
Attributes:
231
name: string; from the config file, used in log messages and
232
D-Bus identifiers
176
name: string; from the config file, used in log messages
233
177
fingerprint: string (40 or 32 hexadecimal digits); used to
234
178
uniquely identify the client
235
secret: bytestring; sent verbatim (over TLS) to client
236
host: string; available for use by the checker command
237
created: datetime.datetime(); (UTC) object creation
238
last_enabled: datetime.datetime(); (UTC)
239
enabled: bool()
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.
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.
248
190
checker_initiator_tag: a gobject event source tag, or None
249
disable_initiator_tag: - '' -
191
stop_initiator_tag: - '' -
250
192
checker_callback_tag: - '' -
251
193
checker_command: string; External command which is run to check if
252
194
client lives. %() expansions are done at
253
195
runtime with vars(self) as dict, so that for
254
196
instance %(name)s can be used in the command.
255
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: - '' -
256
202
"""
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):
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):
274
227
"""Note: the 'checker' key in 'config' sets the
275
228
'checker_command' attribute and *not* the 'checker'
276
229
attribute."""
277
self.name = name
278
230
if config is None:
279
231
config = {}
232
self.name = name
280
233
logger.debug(u"Creating client %r", self.name)
281
234
# Uppercase and remove spaces from fingerprint for later
282
235
# comparison purposes with return value from the fingerprint()
283
236
# function
284
self.fingerprint = (config[u"fingerprint"].upper()
285
.replace(u" ", u""))
237
self.fingerprint = config["fingerprint"].upper()\
238
.replace(u" ", u"")
286
239
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()
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()
294
246
else:
295
247
raise TypeError(u"No secret or secfile for client %s"
296
248
% 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
249
self.host = config.get("host", "")
250
self.created = datetime.datetime.now()
301
251
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
252
self.timeout = string_to_delta(config["timeout"])
253
self.interval = string_to_delta(config["interval"])
254
self.stop_hook = stop_hook
305
255
self.checker = None
306
256
self.checker_initiator_tag = None
307
self.disable_initiator_tag = None
257
self.stop_initiator_tag = None
308
258
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):
259
self.check_command = config["checker"]
260
def start(self):
314
261
"""Start this client's checker and timeout hooks"""
315
self.last_enabled = datetime.datetime.utcnow()
316
262
# Schedule a new checker to be started an 'interval' from now,
317
263
# and every interval from then on.
318
self.checker_initiator_tag = (gobject.timeout_add
319
(self.interval_milliseconds(),
320
self.start_checker))
264
self.checker_initiator_tag = gobject.timeout_add\
265
(self._interval_milliseconds,
266
self.start_checker)
321
267
# Also start a new checker *right now*.
322
268
self.start_checker()
323
# Schedule a disable() when 'timeout' has passed
324
self.disable_initiator_tag = (gobject.timeout_add
325
(self.timeout_milliseconds(),
326
self.disable))
327
self.enabled = True
328
329
def disable(self):
330
"""Disable this client."""
331
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:
332
282
return False
333
logger.info(u"Disabling client %s", self.name)
334
if getattr(self, u"disable_initiator_tag", False):
335
gobject.source_remove(self.disable_initiator_tag)
336
self.disable_initiator_tag = None
337
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):
338
287
gobject.source_remove(self.checker_initiator_tag)
339
288
self.checker_initiator_tag = None
340
289
self.stop_checker()
341
if self.disable_hook:
342
self.disable_hook(self)
343
self.enabled = False
290
if self.stop_hook:
291
self.stop_hook(self)
344
292
# Do not run this again if called by a gobject.timeout_add
345
293
return False
346
347
294
def __del__(self):
348
self.disable_hook = None
349
self.disable()
350
351
def checker_callback(self, pid, condition, command):
295
self.stop_hook = None
296
self.stop()
297
def checker_callback(self, pid, condition):
352
298
"""The checker has completed, so take appropriate actions."""
299
now = datetime.datetime.now()
353
300
self.checker_callback_tag = None
354
301
self.checker = None
355
if os.WIFEXITED(condition):
356
exitstatus = os.WEXITSTATUS(condition)
357
if exitstatus == 0:
358
logger.info(u"Checker for %(name)s succeeded",
359
vars(self))
360
self.checked_ok()
361
else:
362
logger.info(u"Checker for %(name)s failed",
363
vars(self))
364
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):
365
312
logger.warning(u"Checker for %(name)s crashed?",
366
313
vars(self))
367
368
def checked_ok(self):
369
"""Bump up the timeout for this client.
370
371
This should only be called when the client has been seen,
372
alive and well.
373
"""
374
self.last_checked_ok = datetime.datetime.utcnow()
375
gobject.source_remove(self.disable_initiator_tag)
376
self.disable_initiator_tag = (gobject.timeout_add
377
(self.timeout_milliseconds(),
378
self.disable))
379
314
else:
315
logger.info(u"Checker for %(name)s failed",
316
vars(self))
380
317
def start_checker(self):
381
318
"""Start a new checker subprocess if one is not running.
382
383
319
If a checker already exists, leave it running and do
384
320
nothing."""
385
321
# The reason for not killing a running checker is that if we
390
326
# checkers alone, the checker would have to take more time
391
327
# than 'timeout' for the client to be declared invalid, which
392
328
# is as it should be.
393
394
# If a checker exists, make sure it is not a zombie
395
if self.checker is not None:
396
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
397
if pid:
398
logger.warning(u"Checker was a zombie")
399
gobject.source_remove(self.checker_callback_tag)
400
self.checker_callback(pid, status,
401
self.current_checker_command)
402
# Start a new checker if needed
403
329
if self.checker is None:
404
330
try:
405
# In case checker_command has exactly one % operator
406
command = self.checker_command % self.host
331
# In case check_command has exactly one % operator
332
command = self.check_command % self.host
407
333
except TypeError:
408
334
# Escape attributes for the shell
409
escaped_attrs = dict((key,
410
re.escape(unicode(str(val),
411
errors=
412
u'replace')))
335
escaped_attrs = dict((key, re.escape(str(val)))
413
336
for key, val in
414
337
vars(self).iteritems())
415
338
try:
416
command = self.checker_command % escaped_attrs
339
command = self.check_command % escaped_attrs
417
340
except TypeError, error:
418
341
logger.error(u'Could not format string "%s":'
419
u' %s', self.checker_command, error)
342
u' %s', self.check_command, error)
420
343
return True # Try again later
421
self.current_checker_command = command
422
344
try:
423
345
logger.info(u"Starting checker %r for %s",
424
346
command, self.name)
428
350
# always replaced by /dev/null.)
429
351
self.checker = subprocess.Popen(command,
430
352
close_fds=True,
431
shell=True, cwd=u"/")
432
self.checker_callback_tag = (gobject.child_watch_add
433
(self.checker.pid,
434
self.checker_callback,
435
data=command))
436
# The checker may have completed before the gobject
437
# watch was added. Check for this.
438
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
439
if pid:
440
gobject.source_remove(self.checker_callback_tag)
441
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)
442
357
except OSError, error:
443
358
logger.error(u"Failed to start subprocess: %s",
444
359
error)
445
360
# Re-run this periodically if run by gobject.timeout_add
446
361
return True
447
448
362
def stop_checker(self):
449
363
"""Force the checker process, if any, to stop."""
450
364
if self.checker_callback_tag:
451
365
gobject.source_remove(self.checker_callback_tag)
452
366
self.checker_callback_tag = None
453
if getattr(self, u"checker", None) is None:
367
if getattr(self, "checker", None) is None:
454
368
return
455
369
logger.debug(u"Stopping checker for %(name)s", vars(self))
456
370
try:
462
376
if error.errno != errno.ESRCH: # No such process
463
377
raise
464
378
self.checker = None
465
466
379
def still_valid(self):
467
380
"""Has the timeout not yet passed for this client?"""
468
if not getattr(self, u"enabled", False):
469
return False
470
now = datetime.datetime.utcnow()
381
now = datetime.datetime.now()
471
382
if self.last_checked_ok is None:
472
383
return now < (self.created + self.timeout)
473
384
else:
474
385
return now < (self.last_checked_ok + self.timeout)
475
386
476
387
477
class ClientDBus(Client, dbus.service.Object):
478
"""A Client class using D-Bus
479
480
Attributes:
481
dbus_object_path: dbus.ObjectPath
482
bus: dbus.SystemBus()
483
"""
484
# dbus.service.Object doesn't use super(), so we can't either.
485
486
def __init__(self, bus = None, *args, **kwargs):
487
self.bus = bus
488
Client.__init__(self, *args, **kwargs)
489
# Only now, when this client is initialized, can it show up on
490
# the D-Bus
491
self.dbus_object_path = (dbus.ObjectPath
492
(u"/clients/"
493
+ self.name.replace(u".", u"_")))
494
dbus.service.Object.__init__(self, self.bus,
495
self.dbus_object_path)
496
497
@staticmethod
498
def _datetime_to_dbus(dt, variant_level=0):
499
"""Convert a UTC datetime.datetime() to a D-Bus type."""
500
return dbus.String(dt.isoformat(),
501
variant_level=variant_level)
502
503
def enable(self):
504
oldstate = getattr(self, u"enabled", False)
505
r = Client.enable(self)
506
if oldstate != self.enabled:
507
# Emit D-Bus signals
508
self.PropertyChanged(dbus.String(u"enabled"),
509
dbus.Boolean(True, variant_level=1))
510
self.PropertyChanged(
511
dbus.String(u"last_enabled"),
512
self._datetime_to_dbus(self.last_enabled,
513
variant_level=1))
514
return r
515
516
def disable(self, signal = True):
517
oldstate = getattr(self, u"enabled", False)
518
r = Client.disable(self)
519
if signal and oldstate != self.enabled:
520
# Emit D-Bus signal
521
self.PropertyChanged(dbus.String(u"enabled"),
522
dbus.Boolean(False, variant_level=1))
523
return r
524
525
def __del__(self, *args, **kwargs):
526
try:
527
self.remove_from_connection()
528
except LookupError:
529
pass
530
if hasattr(dbus.service.Object, u"__del__"):
531
dbus.service.Object.__del__(self, *args, **kwargs)
532
Client.__del__(self, *args, **kwargs)
533
534
def checker_callback(self, pid, condition, command,
535
*args, **kwargs):
536
self.checker_callback_tag = None
537
self.checker = None
538
# Emit D-Bus signal
539
self.PropertyChanged(dbus.String(u"checker_running"),
540
dbus.Boolean(False, variant_level=1))
541
if os.WIFEXITED(condition):
542
exitstatus = os.WEXITSTATUS(condition)
543
# Emit D-Bus signal
544
self.CheckerCompleted(dbus.Int16(exitstatus),
545
dbus.Int64(condition),
546
dbus.String(command))
547
else:
548
# Emit D-Bus signal
549
self.CheckerCompleted(dbus.Int16(-1),
550
dbus.Int64(condition),
551
dbus.String(command))
552
553
return Client.checker_callback(self, pid, condition, command,
554
*args, **kwargs)
555
556
def checked_ok(self, *args, **kwargs):
557
r = Client.checked_ok(self, *args, **kwargs)
558
# Emit D-Bus signal
559
self.PropertyChanged(
560
dbus.String(u"last_checked_ok"),
561
(self._datetime_to_dbus(self.last_checked_ok,
562
variant_level=1)))
563
return r
564
565
def start_checker(self, *args, **kwargs):
566
old_checker = self.checker
567
if self.checker is not None:
568
old_checker_pid = self.checker.pid
569
else:
570
old_checker_pid = None
571
r = Client.start_checker(self, *args, **kwargs)
572
# Only if new checker process was started
573
if (self.checker is not None
574
and old_checker_pid != self.checker.pid):
575
# Emit D-Bus signal
576
self.CheckerStarted(self.current_checker_command)
577
self.PropertyChanged(
578
dbus.String(u"checker_running"),
579
dbus.Boolean(True, variant_level=1))
580
return r
581
582
def stop_checker(self, *args, **kwargs):
583
old_checker = getattr(self, u"checker", None)
584
r = Client.stop_checker(self, *args, **kwargs)
585
if (old_checker is not None
586
and getattr(self, u"checker", None) is None):
587
self.PropertyChanged(dbus.String(u"checker_running"),
588
dbus.Boolean(False, variant_level=1))
589
return r
590
591
## D-Bus methods & signals
592
_interface = u"se.bsnet.fukt.Mandos.Client"
593
594
# CheckedOK - method
595
@dbus.service.method(_interface)
596
def CheckedOK(self):
597
return self.checked_ok()
598
599
# CheckerCompleted - signal
600
@dbus.service.signal(_interface, signature=u"nxs")
601
def CheckerCompleted(self, exitcode, waitstatus, command):
602
"D-Bus signal"
603
pass
604
605
# CheckerStarted - signal
606
@dbus.service.signal(_interface, signature=u"s")
607
def CheckerStarted(self, command):
608
"D-Bus signal"
609
pass
610
611
# GetAllProperties - method
612
@dbus.service.method(_interface, out_signature=u"a{sv}")
613
def GetAllProperties(self):
614
"D-Bus method"
615
return dbus.Dictionary({
616
dbus.String(u"name"):
617
dbus.String(self.name, variant_level=1),
618
dbus.String(u"fingerprint"):
619
dbus.String(self.fingerprint, variant_level=1),
620
dbus.String(u"host"):
621
dbus.String(self.host, variant_level=1),
622
dbus.String(u"created"):
623
self._datetime_to_dbus(self.created,
624
variant_level=1),
625
dbus.String(u"last_enabled"):
626
(self._datetime_to_dbus(self.last_enabled,
627
variant_level=1)
628
if self.last_enabled is not None
629
else dbus.Boolean(False, variant_level=1)),
630
dbus.String(u"enabled"):
631
dbus.Boolean(self.enabled, variant_level=1),
632
dbus.String(u"last_checked_ok"):
633
(self._datetime_to_dbus(self.last_checked_ok,
634
variant_level=1)
635
if self.last_checked_ok is not None
636
else dbus.Boolean (False, variant_level=1)),
637
dbus.String(u"timeout"):
638
dbus.UInt64(self.timeout_milliseconds(),
639
variant_level=1),
640
dbus.String(u"interval"):
641
dbus.UInt64(self.interval_milliseconds(),
642
variant_level=1),
643
dbus.String(u"checker"):
644
dbus.String(self.checker_command,
645
variant_level=1),
646
dbus.String(u"checker_running"):
647
dbus.Boolean(self.checker is not None,
648
variant_level=1),
649
dbus.String(u"object_path"):
650
dbus.ObjectPath(self.dbus_object_path,
651
variant_level=1)
652
}, signature=u"sv")
653
654
# IsStillValid - method
655
@dbus.service.method(_interface, out_signature=u"b")
656
def IsStillValid(self):
657
return self.still_valid()
658
659
# PropertyChanged - signal
660
@dbus.service.signal(_interface, signature=u"sv")
661
def PropertyChanged(self, property, value):
662
"D-Bus signal"
663
pass
664
665
# ReceivedSecret - signal
666
@dbus.service.signal(_interface)
667
def ReceivedSecret(self):
668
"D-Bus signal"
669
pass
670
671
# Rejected - signal
672
@dbus.service.signal(_interface)
673
def Rejected(self):
674
"D-Bus signal"
675
pass
676
677
# SetChecker - method
678
@dbus.service.method(_interface, in_signature=u"s")
679
def SetChecker(self, checker):
680
"D-Bus setter method"
681
self.checker_command = checker
682
# Emit D-Bus signal
683
self.PropertyChanged(dbus.String(u"checker"),
684
dbus.String(self.checker_command,
685
variant_level=1))
686
687
# SetHost - method
688
@dbus.service.method(_interface, in_signature=u"s")
689
def SetHost(self, host):
690
"D-Bus setter method"
691
self.host = host
692
# Emit D-Bus signal
693
self.PropertyChanged(dbus.String(u"host"),
694
dbus.String(self.host, variant_level=1))
695
696
# SetInterval - method
697
@dbus.service.method(_interface, in_signature=u"t")
698
def SetInterval(self, milliseconds):
699
self.interval = datetime.timedelta(0, 0, 0, milliseconds)
700
# Emit D-Bus signal
701
self.PropertyChanged(dbus.String(u"interval"),
702
(dbus.UInt64(self.interval_milliseconds(),
703
variant_level=1)))
704
705
# SetSecret - method
706
@dbus.service.method(_interface, in_signature=u"ay",
707
byte_arrays=True)
708
def SetSecret(self, secret):
709
"D-Bus setter method"
710
self.secret = str(secret)
711
712
# SetTimeout - method
713
@dbus.service.method(_interface, in_signature=u"t")
714
def SetTimeout(self, milliseconds):
715
self.timeout = datetime.timedelta(0, 0, 0, milliseconds)
716
# Emit D-Bus signal
717
self.PropertyChanged(dbus.String(u"timeout"),
718
(dbus.UInt64(self.timeout_milliseconds(),
719
variant_level=1)))
720
721
# Enable - method
722
@dbus.service.method(_interface)
723
def Enable(self):
724
"D-Bus method"
725
self.enable()
726
727
# StartChecker - method
728
@dbus.service.method(_interface)
729
def StartChecker(self):
730
"D-Bus method"
731
self.start_checker()
732
733
# Disable - method
734
@dbus.service.method(_interface)
735
def Disable(self):
736
"D-Bus method"
737
self.disable()
738
739
# StopChecker - method
740
@dbus.service.method(_interface)
741
def StopChecker(self):
742
self.stop_checker()
743
744
del _interface
745
746
747
class ClientHandler(socketserver.BaseRequestHandler, object):
748
"""A class to handle client connections.
749
750
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.
751
445
Note: This will run in its own forked process."""
752
446
753
447
def handle(self):
754
448
logger.info(u"TCP connection from: %s",
755
unicode(self.client_address))
756
logger.debug(u"IPC Pipe FD: %d", self.server.pipe[1])
757
# Open IPC pipe to parent process
758
with closing(os.fdopen(self.server.pipe[1], u"w", 1)) as ipc:
759
session = (gnutls.connection
760
.ClientSession(self.request,
761
gnutls.connection
762
.X509Credentials()))
763
764
line = self.request.makefile().readline()
765
logger.debug(u"Protocol version: %r", line)
766
try:
767
if int(line.strip().split()[0]) > 1:
768
raise RuntimeError
769
except (ValueError, IndexError, RuntimeError), error:
770
logger.error(u"Unknown protocol version: %s", error)
771
return
772
773
# Note: gnutls.connection.X509Credentials is really a
774
# generic GnuTLS certificate credentials object so long as
775
# no X.509 keys are added to it. Therefore, we can use it
776
# here despite using OpenPGP certificates.
777
778
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
779
# u"+AES-256-CBC", u"+SHA1",
780
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
781
# u"+DHE-DSS"))
782
# Use a fallback default, since this MUST be set.
783
priority = self.server.gnutls_priority
784
if priority is None:
785
priority = u"NORMAL"
786
(gnutls.library.functions
787
.gnutls_priority_set_direct(session._c_object,
788
priority, None))
789
790
try:
791
session.handshake()
792
except gnutls.errors.GNUTLSError, error:
793
logger.warning(u"Handshake failed: %s", error)
794
# Do not run session.bye() here: the session is not
795
# established. Just abandon the request.
796
return
797
logger.debug(u"Handshake succeeded")
798
try:
799
fpr = self.fingerprint(self.peer_certificate(session))
800
except (TypeError, gnutls.errors.GNUTLSError), error:
801
logger.warning(u"Bad certificate: %s", error)
802
session.bye()
803
return
804
logger.debug(u"Fingerprint: %s", fpr)
805
806
for c in self.server.clients:
807
if c.fingerprint == fpr:
808
client = c
809
break
810
else:
811
ipc.write(u"NOTFOUND %s\n" % fpr)
812
session.bye()
813
return
814
# Have to check if client.still_valid(), since it is
815
# possible that the client timed out while establishing
816
# the GnuTLS session.
817
if not client.still_valid():
818
ipc.write(u"INVALID %s\n" % client.name)
819
session.bye()
820
return
821
ipc.write(u"SENDING %s\n" % client.name)
822
sent_size = 0
823
while sent_size < len(client.secret):
824
sent = session.send(client.secret[sent_size:])
825
logger.debug(u"Sent: %d, remaining: %d",
826
sent, len(client.secret)
827
- (sent_size + sent))
828
sent_size += sent
829
session.bye()
830
831
@staticmethod
832
def peer_certificate(session):
833
"Return the peer's OpenPGP certificate as a bytestring"
834
# If not an OpenPGP certificate...
835
if (gnutls.library.functions
836
.gnutls_certificate_type_get(session._c_object)
837
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
838
# ...do the normal thing
839
return session.peer_certificate
840
list_size = ctypes.c_uint(1)
841
cert_list = (gnutls.library.functions
842
.gnutls_certificate_get_peers
843
(session._c_object, ctypes.byref(list_size)))
844
if not bool(cert_list) and list_size.value != 0:
845
raise gnutls.errors.GNUTLSError(u"error getting peer"
846
u" certificate")
847
if list_size.value == 0:
848
return None
849
cert = cert_list[0]
850
return ctypes.string_at(cert.data, cert.size)
851
852
@staticmethod
853
def fingerprint(openpgp):
854
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
855
# New GnuTLS "datum" with the OpenPGP public key
856
datum = (gnutls.library.types
857
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
858
ctypes.POINTER
859
(ctypes.c_ubyte)),
860
ctypes.c_uint(len(openpgp))))
861
# New empty GnuTLS certificate
862
crt = gnutls.library.types.gnutls_openpgp_crt_t()
863
(gnutls.library.functions
864
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
865
# Import the OpenPGP public key into the certificate
866
(gnutls.library.functions
867
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
868
gnutls.library.constants
869
.GNUTLS_OPENPGP_FMT_RAW))
870
# Verify the self signature in the key
871
crtverify = ctypes.c_uint()
872
(gnutls.library.functions
873
.gnutls_openpgp_crt_verify_self(crt, 0,
874
ctypes.byref(crtverify)))
875
if crtverify.value != 0:
876
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
877
raise (gnutls.errors.CertificateSecurityError
878
(u"Verify failed"))
879
# New buffer for the fingerprint
880
buf = ctypes.create_string_buffer(20)
881
buf_len = ctypes.c_size_t()
882
# Get the fingerprint from the certificate into the buffer
883
(gnutls.library.functions
884
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
885
ctypes.byref(buf_len)))
886
# Deinit the certificate
887
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
888
# Convert the buffer to a Python bytestring
889
fpr = ctypes.string_at(buf, buf_len.value)
890
# Convert the bytestring to hexadecimal notation
891
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
892
return hex_fpr
893
894
895
class ForkingMixInWithPipe(socketserver.ForkingMixIn, object):
896
"""Like socketserver.ForkingMixIn, but also pass a pipe.
897
898
Assumes a gobject.MainLoop event loop.
899
"""
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
# Call "handle_ipc" for both data and EOF events
910
gobject.io_add_watch(self.pipe[0],
911
gobject.IO_IN | gobject.IO_HUP,
912
self.handle_ipc)
913
def handle_ipc(self, source, condition):
914
"""Dummy function; override as necessary"""
915
os.close(source)
916
return False
917
918
919
class IPv6_TCPServer(ForkingMixInWithPipe,
920
socketserver.TCPServer, object):
921
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
922
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.
923
521
Attributes:
522
settings: Server settings
523
clients: Set() of Client objects
924
524
enabled: Boolean; whether this server is activated yet
925
interface: None or a network interface name (string)
926
use_ipv6: Boolean; to use IPv6 or not
927
----
928
clients: set of Client objects
929
gnutls_priority GnuTLS priority string
930
use_dbus: Boolean; to emit D-Bus signals or not
931
525
"""
932
def __init__(self, server_address, RequestHandlerClass,
933
interface=None, use_ipv6=True):
934
self.interface = interface
935
if use_ipv6:
936
self.address_family = socket.AF_INET6
937
socketserver.TCPServer.__init__(self, server_address,
938
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)
939
536
def server_bind(self):
940
537
"""This overrides the normal server_bind() function
941
538
to bind to an interface if one was specified, and also NOT to
942
539
bind to an address or port if they were not specified."""
943
if self.interface is not None:
944
if SO_BINDTODEVICE is None:
945
logger.error(u"SO_BINDTODEVICE does not exist;"
946
u" cannot bind to interface %s",
947
self.interface)
948
else:
949
try:
950
self.socket.setsockopt(socket.SOL_SOCKET,
951
SO_BINDTODEVICE,
952
str(self.interface
953
+ u'\0'))
954
except socket.error, error:
955
if error[0] == errno.EPERM:
956
logger.error(u"No permission to"
957
u" bind to interface %s",
958
self.interface)
959
elif error[0] == errno.ENOPROTOOPT:
960
logger.error(u"SO_BINDTODEVICE not available;"
961
u" cannot bind to interface %s",
962
self.interface)
963
else:
964
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
965
554
# Only bind(2) the socket if we really need to.
966
555
if self.server_address[0] or self.server_address[1]:
967
556
if not self.server_address[0]:
968
if self.address_family == socket.AF_INET6:
969
any_address = u"::" # in6addr_any
970
else:
971
any_address = socket.INADDR_ANY
972
self.server_address = (any_address,
557
in6addr_any = "::"
558
self.server_address = (in6addr_any,
973
559
self.server_address[1])
974
560
elif not self.server_address[1]:
975
561
self.server_address = (self.server_address[0],
976
562
0)
977
# if self.interface:
563
# if self.settings["interface"]:
978
564
# self.server_address = (self.server_address[0],
979
565
# 0, # port
980
566
# 0, # flowinfo
981
567
# if_nametoindex
982
# (self.interface))
983
return socketserver.TCPServer.server_bind(self)
984
985
986
class MandosServer(IPv6_TCPServer):
987
"""Mandos server.
988
989
Attributes:
990
clients: set of Client objects
991
gnutls_priority GnuTLS priority string
992
use_dbus: Boolean; to emit D-Bus signals or not
993
"""
994
def __init__(self, server_address, RequestHandlerClass,
995
interface=None, use_ipv6=True, clients=None,
996
gnutls_priority=None, use_dbus=True):
997
self.enabled = False
998
self.clients = clients
999
self.use_dbus = use_dbus
1000
self.gnutls_priority = gnutls_priority
1001
IPv6_TCPServer.__init__(self, server_address,
1002
RequestHandlerClass,
1003
interface = interface,
1004
use_ipv6 = use_ipv6)
568
# (self.settings
569
# ["interface"]))
570
return super(IPv6_TCPServer, self).server_bind()
1005
571
def server_activate(self):
1006
572
if self.enabled:
1007
return socketserver.TCPServer.server_activate(self)
573
return super(IPv6_TCPServer, self).server_activate()
1008
574
def enable(self):
1009
575
self.enabled = True
1010
def handle_ipc(self, source, condition, file_objects={}):
1011
condition_names = {
1012
gobject.IO_IN: u"IN", # There is data to read.
1013
gobject.IO_OUT: u"OUT", # Data can be written (without
1014
# blocking).
1015
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1016
gobject.IO_ERR: u"ERR", # Error condition.
1017
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1018
# broken, usually for pipes and
1019
# sockets).
1020
}
1021
conditions_string = ' | '.join(name
1022
for cond, name in
1023
condition_names.iteritems()
1024
if cond & condition)
1025
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1026
conditions_string)
1027
1028
# Turn the pipe file descriptor into a Python file object
1029
if source not in file_objects:
1030
file_objects[source] = os.fdopen(source, u"r", 1)
1031
1032
# Read a line from the file object
1033
cmdline = file_objects[source].readline()
1034
if not cmdline: # Empty line means end of file
1035
# close the IPC pipe
1036
file_objects[source].close()
1037
del file_objects[source]
1038
1039
# Stop calling this function
1040
return False
1041
1042
logger.debug(u"IPC command: %r", cmdline)
1043
1044
# Parse and act on command
1045
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1046
1047
if cmd == u"NOTFOUND":
1048
logger.warning(u"Client not found for fingerprint: %s",
1049
args)
1050
if self.use_dbus:
1051
# Emit D-Bus signal
1052
mandos_dbus_service.ClientNotFound(args)
1053
elif cmd == u"INVALID":
1054
for client in self.clients:
1055
if client.name == args:
1056
logger.warning(u"Client %s is invalid", args)
1057
if self.use_dbus:
1058
# Emit D-Bus signal
1059
client.Rejected()
1060
break
1061
else:
1062
logger.error(u"Unknown client %s is invalid", args)
1063
elif cmd == u"SENDING":
1064
for client in self.clients:
1065
if client.name == args:
1066
logger.info(u"Sending secret to %s", client.name)
1067
client.checked_ok()
1068
if self.use_dbus:
1069
# Emit D-Bus signal
1070
client.ReceivedSecret()
1071
break
1072
else:
1073
logger.error(u"Sending secret to unknown client %s",
1074
args)
1075
else:
1076
logger.error(u"Unknown IPC command: %r", cmdline)
1077
1078
# Keep calling this function
1079
return True
1080
576
1081
577
1082
578
def string_to_delta(interval):
1083
579
"""Parse a string and return a datetime.timedelta
1084
1085
>>> string_to_delta(u'7d')
580
581
>>> string_to_delta('7d')
1086
582
datetime.timedelta(7)
1087
>>> string_to_delta(u'60s')
583
>>> string_to_delta('60s')
1088
584
datetime.timedelta(0, 60)
1089
>>> string_to_delta(u'60m')
585
>>> string_to_delta('60m')
1090
586
datetime.timedelta(0, 3600)
1091
>>> string_to_delta(u'24h')
587
>>> string_to_delta('24h')
1092
588
datetime.timedelta(1)
1093
589
>>> string_to_delta(u'1w')
1094
590
datetime.timedelta(7)
1095
>>> string_to_delta(u'5m 30s')
591
>>> string_to_delta('5m 30s')
1096
592
datetime.timedelta(0, 330)
1097
593
"""
1098
594
timevalue = datetime.timedelta(0)
1118
614
return timevalue
1119
615
1120
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
1121
640
def if_nametoindex(interface):
1122
"""Call the C function if_nametoindex(), or equivalent
1123
1124
Note: This function cannot accept a unicode string."""
641
"""Call the C function if_nametoindex(), or equivalent"""
1125
642
global if_nametoindex
1126
643
try:
1127
if_nametoindex = (ctypes.cdll.LoadLibrary
1128
(ctypes.util.find_library(u"c"))
1129
.if_nametoindex)
644
if_nametoindex = ctypes.cdll.LoadLibrary\
645
(ctypes.util.find_library("c")).if_nametoindex
1130
646
except (OSError, AttributeError):
1131
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
1132
651
def if_nametoindex(interface):
1133
652
"Get an interface index the hard way, i.e. using fcntl()"
1134
653
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1135
with closing(socket.socket()) as s:
1136
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1137
struct.pack(str(u"16s16x"),
1138
interface))
1139
interface_index = struct.unpack(str(u"I"),
1140
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]
1141
659
return interface_index
1142
660
return if_nametoindex(interface)
1143
661
1144
662
1145
663
def daemon(nochdir = False, noclose = False):
1146
664
"""See daemon(3). Standard BSD Unix function.
1147
1148
665
This should really exist as os.daemon, but it doesn't (yet)."""
1149
666
if os.fork():
1150
667
sys.exit()
1151
668
os.setsid()
1152
669
if not nochdir:
1153
os.chdir(u"/")
670
os.chdir("/")
1154
671
if os.fork():
1155
672
sys.exit()
1156
673
if not noclose:
1158
675
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1159
676
if not stat.S_ISCHR(os.fstat(null).st_mode):
1160
677
raise OSError(errno.ENODEV,
1161
u"/dev/null not a character device")
678
"/dev/null not a character device")
1162
679
os.dup2(null, sys.stdin.fileno())
1163
680
os.dup2(null, sys.stdout.fileno())
1164
681
os.dup2(null, sys.stderr.fileno())
1167
684
1168
685
1169
686
def main():
1170
1171
######################################################################
1172
# Parsing of options, both command line and config file
1173
1174
parser = optparse.OptionParser(version = "%%prog %s" % version)
1175
parser.add_option("-i", u"--interface", type=u"string",
1176
metavar="IF", help=u"Bind to interface IF")
1177
parser.add_option("-a", u"--address", type=u"string",
1178
help=u"Address to listen for requests on")
1179
parser.add_option("-p", u"--port", type=u"int",
1180
help=u"Port number to receive requests on")
1181
parser.add_option("--check", action=u"store_true",
1182
help=u"Run self-test")
1183
parser.add_option("--debug", action=u"store_true",
1184
help=u"Debug mode; run in foreground and log to"
1185
u" terminal")
1186
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1187
u" priority string (see GnuTLS documentation)")
1188
parser.add_option("--servicename", type=u"string",
1189
metavar=u"NAME", help=u"Zeroconf service name")
1190
parser.add_option("--configdir", type=u"string",
1191
default=u"/etc/mandos", metavar=u"DIR",
1192
help=u"Directory to search for configuration"
1193
u" files")
1194
parser.add_option("--no-dbus", action=u"store_false",
1195
dest=u"use_dbus", help=u"Do not provide D-Bus"
1196
u" system bus interface")
1197
parser.add_option("--no-ipv6", action=u"store_false",
1198
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")
1199
707
options = parser.parse_args()[0]
1200
708
1201
709
if options.check:
1204
712
sys.exit()
1205
713
1206
714
# Default values for config file for server-global settings
1207
server_defaults = { u"interface": u"",
1208
u"address": u"",
1209
u"port": u"",
1210
u"debug": u"False",
1211
u"priority":
1212
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1213
u"servicename": u"Mandos",
1214
u"use_dbus": u"True",
1215
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",
1216
722
}
1217
723
1218
724
# Parse config file for server-global settings
1219
server_config = configparser.SafeConfigParser(server_defaults)
725
server_config = ConfigParser.SafeConfigParser(server_defaults)
1220
726
del server_defaults
1221
server_config.read(os.path.join(options.configdir,
1222
u"mandos.conf"))
727
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1223
728
# Convert the SafeConfigParser object to a dict
1224
729
server_settings = server_config.defaults()
1225
# Use the appropriate methods on the non-string config options
1226
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1227
server_settings[option] = server_config.getboolean(u"DEFAULT",
1228
option)
1229
if server_settings["port"]:
1230
server_settings["port"] = server_config.getint(u"DEFAULT",
1231
u"port")
730
# Use getboolean on the boolean config option
731
server_settings["debug"] = server_config.getboolean\
732
("DEFAULT", "debug")
1232
733
del server_config
1233
734
1234
735
# Override the settings from the config file with command line
1235
736
# options, if set.
1236
for option in (u"interface", u"address", u"port", u"debug",
1237
u"priority", u"servicename", u"configdir",
1238
u"use_dbus", u"use_ipv6"):
737
for option in ("interface", "address", "port", "debug",
738
"priority", "servicename", "configdir"):
1239
739
value = getattr(options, option)
1240
740
if value is not None:
1241
741
server_settings[option] = value
1242
742
del options
1243
# Force all strings to be unicode
1244
for option in server_settings.keys():
1245
if type(server_settings[option]) is str:
1246
server_settings[option] = unicode(server_settings[option])
1247
743
# Now we have our good server settings in "server_settings"
1248
744
1249
##################################################################
1250
1251
# For convenience
1252
debug = server_settings[u"debug"]
1253
use_dbus = server_settings[u"use_dbus"]
1254
use_ipv6 = server_settings[u"use_ipv6"]
745
debug = server_settings["debug"]
1255
746
1256
747
if not debug:
1257
748
syslogger.setLevel(logging.WARNING)
1258
749
console.setLevel(logging.WARNING)
1259
750
1260
if server_settings[u"servicename"] != u"Mandos":
1261
syslogger.setFormatter(logging.Formatter
1262
(u'Mandos (%s) [%%(process)d]:'
1263
u' %%(levelname)s: %%(message)s'
1264
% 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"]))
1265
756
1266
757
# Parse config file with clients
1267
client_defaults = { u"timeout": u"1h",
1268
u"interval": u"5m",
1269
u"checker": u"fping -q -- %%(host)s",
1270
u"host": u"",
758
client_defaults = { "timeout": "1h",
759
"interval": "5m",
760
"checker": "fping -q -- %(host)s",
761
"host": "",
1271
762
}
1272
client_config = configparser.SafeConfigParser(client_defaults)
1273
client_config.read(os.path.join(server_settings[u"configdir"],
1274
u"clients.conf"))
1275
1276
global mandos_dbus_service
1277
mandos_dbus_service = None
1278
1279
clients = set()
1280
tcp_server = MandosServer((server_settings[u"address"],
1281
server_settings[u"port"]),
1282
ClientHandler,
1283
interface=server_settings[u"interface"],
1284
use_ipv6=use_ipv6,
1285
clients=clients,
1286
gnutls_priority=
1287
server_settings[u"priority"],
1288
use_dbus=use_dbus)
1289
pidfilename = u"/var/run/mandos.pid"
1290
try:
1291
pidfile = open(pidfilename, u"w")
1292
except IOError:
1293
logger.error(u"Could not open file %r", pidfilename)
1294
1295
try:
1296
uid = pwd.getpwnam(u"_mandos").pw_uid
1297
gid = pwd.getpwnam(u"_mandos").pw_gid
1298
except KeyError:
1299
try:
1300
uid = pwd.getpwnam(u"mandos").pw_uid
1301
gid = pwd.getpwnam(u"mandos").pw_gid
1302
except KeyError:
1303
try:
1304
uid = pwd.getpwnam(u"nobody").pw_uid
1305
gid = pwd.getpwnam(u"nobody").pw_gid
1306
except KeyError:
1307
uid = 65534
1308
gid = 65534
1309
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)
1310
797
os.setgid(gid)
1311
os.setuid(uid)
1312
798
except OSError, error:
1313
799
if error[0] != errno.EPERM:
1314
800
raise error
1315
801
1316
# Enable all possible GnuTLS debugging
1317
if debug:
1318
# "Use a log level over 10 to enable all debugging options."
1319
# - GnuTLS manual
1320
gnutls.library.functions.gnutls_global_set_log_level(11)
1321
1322
@gnutls.library.types.gnutls_log_func
1323
def debug_gnutls(level, string):
1324
logger.debug(u"GnuTLS: %s", string[:-1])
1325
1326
(gnutls.library.functions
1327
.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"])
1328
808
1329
809
global main_loop
810
global bus
811
global server
1330
812
# From the Avahi example code
1331
813
DBusGMainLoop(set_as_default=True )
1332
814
main_loop = gobject.MainLoop()
1333
815
bus = dbus.SystemBus()
816
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
817
avahi.DBUS_PATH_SERVER),
818
avahi.DBUS_INTERFACE_SERVER)
1334
819
# End of Avahi example code
1335
if use_dbus:
1336
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos", bus)
1337
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1338
service = AvahiService(name = server_settings[u"servicename"],
1339
servicetype = u"_mandos._tcp",
1340
protocol = protocol, bus = bus)
1341
if server_settings["interface"]:
1342
service.interface = (if_nametoindex
1343
(str(server_settings[u"interface"])))
1344
1345
client_class = Client
1346
if use_dbus:
1347
client_class = functools.partial(ClientDBus, bus = bus)
1348
clients.update(set(
1349
client_class(name = section,
1350
config= dict(client_config.items(section)))
1351
for section in client_config.sections()))
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()))
1352
832
if not clients:
1353
logger.warning(u"No clients defined")
833
logger.critical(u"No clients defined")
834
sys.exit(1)
1354
835
1355
836
if debug:
1356
837
# Redirect stdin so all checkers get /dev/null
1365
846
daemon()
1366
847
1367
848
try:
1368
with closing(pidfile):
1369
pid = os.getpid()
1370
pidfile.write(str(pid) + "\n")
849
pid = os.getpid()
850
pidfile.write(str(pid) + "\n")
851
pidfile.close()
1371
852
del pidfile
1372
853
except IOError:
1373
854
logger.error(u"Could not write to file %r with PID %d",
1379
860
1380
861
def cleanup():
1381
862
"Cleanup function; run on exit"
1382
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
1383
869
1384
870
while clients:
1385
871
client = clients.pop()
1386
client.disable_hook = None
1387
client.disable()
872
client.stop_hook = None
873
client.stop()
1388
874
1389
875
atexit.register(cleanup)
1390
876
1393
879
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
1394
880
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
1395
881
1396
if use_dbus:
1397
class MandosDBusService(dbus.service.Object):
1398
"""A D-Bus proxy object"""
1399
def __init__(self):
1400
dbus.service.Object.__init__(self, bus, u"/")
1401
_interface = u"se.bsnet.fukt.Mandos"
1402
1403
@dbus.service.signal(_interface, signature=u"oa{sv}")
1404
def ClientAdded(self, objpath, properties):
1405
"D-Bus signal"
1406
pass
1407
1408
@dbus.service.signal(_interface, signature=u"s")
1409
def ClientNotFound(self, fingerprint):
1410
"D-Bus signal"
1411
pass
1412
1413
@dbus.service.signal(_interface, signature=u"os")
1414
def ClientRemoved(self, objpath, name):
1415
"D-Bus signal"
1416
pass
1417
1418
@dbus.service.method(_interface, out_signature=u"ao")
1419
def GetAllClients(self):
1420
"D-Bus method"
1421
return dbus.Array(c.dbus_object_path for c in clients)
1422
1423
@dbus.service.method(_interface,
1424
out_signature=u"a{oa{sv}}")
1425
def GetAllClientsWithProperties(self):
1426
"D-Bus method"
1427
return dbus.Dictionary(
1428
((c.dbus_object_path, c.GetAllProperties())
1429
for c in clients),
1430
signature=u"oa{sv}")
1431
1432
@dbus.service.method(_interface, in_signature=u"o")
1433
def RemoveClient(self, object_path):
1434
"D-Bus method"
1435
for c in clients:
1436
if c.dbus_object_path == object_path:
1437
clients.remove(c)
1438
c.remove_from_connection()
1439
# Don't signal anything except ClientRemoved
1440
c.disable(signal=False)
1441
# Emit D-Bus signal
1442
self.ClientRemoved(object_path, c.name)
1443
return
1444
raise KeyError
1445
1446
del _interface
1447
1448
mandos_dbus_service = MandosDBusService()
1449
1450
882
for client in clients:
1451
if use_dbus:
1452
# Emit D-Bus signal
1453
mandos_dbus_service.ClientAdded(client.dbus_object_path,
1454
client.GetAllProperties())
1455
client.enable()
883
client.start()
1456
884
1457
885
tcp_server.enable()
1458
886
tcp_server.server_activate()
1459
887
1460
888
# Find out what port we got
1461
889
service.port = tcp_server.socket.getsockname()[1]
1462
if use_ipv6:
1463
logger.info(u"Now listening on address %r, port %d,"
1464
" flowinfo %d, scope_id %d"
1465
% tcp_server.socket.getsockname())
1466
else: # IPv4
1467
logger.info(u"Now listening on address %r, port %d"
1468
% 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())
1469
892
1470
893
#service.interface = tcp_server.socket.getsockname()[3]
1471
894
1472
895
try:
1473
896
# From the Avahi example code
897
server.connect_to_signal("StateChanged", server_state_changed)
1474
898
try:
1475
service.activate()
899
server_state_changed(server.GetState())
1476
900
except dbus.exceptions.DBusException, error:
1477
901
logger.critical(u"DBusException: %s", error)
1478
902
sys.exit(1)
1480
904
1481
905
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
1482
906
lambda *args, **kwargs:
1483
(tcp_server.handle_request
1484
(*args[2:], **kwargs) or True))
907
tcp_server.handle_request\
908
(*args[2:], **kwargs) or True)
1485
909
1486
910
logger.debug(u"Starting main loop")
1487
911
main_loop.run()
1488
912
except AvahiError, error:
1489
logger.critical(u"AvahiError: %s", error)
913
logger.critical(u"AvahiError: %s" + unicode(error))
1490
914
sys.exit(1)
1491
915
except KeyboardInterrupt:
1492
916
if debug:
1493
print >> sys.stderr
1494
logger.debug(u"Server received KeyboardInterrupt")
1495
logger.debug(u"Server exiting")
917
print
1496
918
1497
919
if __name__ == '__main__':
1498
920
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0