51
22
from sets import Set
56
import logging.handlers
62
28
from dbus.mainloop.glib import DBusGMainLoop
68
logger = logging.Logger('mandos')
69
syslogger = logging.handlers.SysLogHandler\
70
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
72
syslogger.setFormatter(logging.Formatter\
73
('Mandos: %(levelname)s: %(message)s'))
74
logger.addHandler(syslogger)
76
console = logging.StreamHandler()
77
console.setFormatter(logging.Formatter('%(name)s: %(levelname)s:'
79
logger.addHandler(console)
81
class AvahiError(Exception):
82
def __init__(self, value):
84
super(AvahiError, self).__init__()
86
return repr(self.value)
88
class AvahiServiceError(AvahiError):
91
class AvahiGroupError(AvahiError):
95
class AvahiService(object):
96
"""An Avahi (Zeroconf) service.
98
interface: integer; avahi.IF_UNSPEC or an interface index.
99
Used to optionally bind to the specified interface.
100
name: string; Example: 'Mandos'
101
type: string; Example: '_mandos._tcp'.
102
See <http://www.dns-sd.org/ServiceTypes.html>
103
port: integer; what port to announce
104
TXT: list of strings; TXT record for the service
105
domain: string; Domain to publish on, default to .local if empty.
106
host: string; Host to publish records for, default is localhost
107
max_renames: integer; maximum number of renames
108
rename_count: integer; counter so we only rename after collisions
109
a sensible number of times
111
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
112
servicetype = None, port = None, TXT = None, domain = "",
113
host = "", max_renames = 32768):
114
self.interface = interface
116
self.type = servicetype
124
self.rename_count = 0
125
self.max_renames = max_renames
127
"""Derived from the Avahi example code"""
128
if self.rename_count >= self.max_renames:
129
logger.critical(u"No suitable Zeroconf service name found"
130
u" after %i retries, exiting.",
132
raise AvahiServiceError("Too many renames")
133
self.name = server.GetAlternativeServiceName(self.name)
134
logger.info(u"Changing Zeroconf service name to %r ...",
136
syslogger.setFormatter(logging.Formatter\
137
('Mandos (%s): %%(levelname)s:'
138
' %%(message)s' % self.name))
141
self.rename_count += 1
143
"""Derived from the Avahi example code"""
144
if group is not None:
147
"""Derived from the Avahi example code"""
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)
156
logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
157
service.name, service.type)
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))
168
# From the Avahi example code:
169
group = None # our entry group
31
# This variable is used to optionally bind to a specified interface.
32
# It is a global variable to fit in with the other variables from the
33
# Avahi server example code.
34
serviceInterface = avahi.IF_UNSPEC
35
# From the Avahi server example code:
36
serviceName = "Mandos"
37
serviceType = "_mandos._tcp" # http://www.dns-sd.org/ServiceTypes.html
38
servicePort = None # Not known at startup
39
serviceTXT = [] # TXT record for the service
40
domain = "" # Domain to publish on, default to .local
41
host = "" # Host to publish records for, default to localhost
42
group = None #our entry group
43
rename_count = 12 # Counter so we only rename after collisions a
44
# sensible number of times
170
45
# End of Avahi example code
292
164
# Do not run this again if called by a gobject.timeout_add
294
166
def __del__(self):
295
self.stop_hook = None
167
# Some code duplication here and in stop()
168
if hasattr(self, "stop_initiator_tag") \
169
and self.stop_initiator_tag:
170
gobject.source_remove(self.stop_initiator_tag)
171
self.stop_initiator_tag = None
172
if hasattr(self, "checker_initiator_tag") \
173
and self.checker_initiator_tag:
174
gobject.source_remove(self.checker_initiator_tag)
175
self.checker_initiator_tag = None
297
177
def checker_callback(self, pid, condition):
298
178
"""The checker has completed, so take appropriate actions."""
299
179
now = datetime.datetime.now()
300
self.checker_callback_tag = None
302
180
if os.WIFEXITED(condition) \
303
181
and (os.WEXITSTATUS(condition) == 0):
304
logger.info(u"Checker for %(name)s succeeded",
306
self.last_checked_ok = now
183
sys.stderr.write(u"Checker for %(name)s succeeded\n"
307
186
gobject.source_remove(self.stop_initiator_tag)
308
187
self.stop_initiator_tag = gobject.timeout_add\
309
188
(self._timeout_milliseconds,
311
elif not os.WIFEXITED(condition):
312
logger.warning(u"Checker for %(name)s crashed?",
315
logger.info(u"Checker for %(name)s failed",
191
if not os.WIFEXITED(condition):
192
sys.stderr.write(u"Checker for %(name)s crashed?\n"
195
sys.stderr.write(u"Checker for %(name)s failed\n"
198
self.checker_callback_tag = None
317
199
def start_checker(self):
318
200
"""Start a new checker subprocess if one is not running.
319
201
If a checker already exists, leave it running and do
321
# The reason for not killing a running checker is that if we
322
# did that, then if a checker (for some reason) started
323
# running slowly and taking more than 'interval' time, the
324
# client would inevitably timeout, since no checker would get
325
# a chance to run to completion. If we instead leave running
326
# checkers alone, the checker would have to take more time
327
# than 'timeout' for the client to be declared invalid, which
328
# is as it should be.
329
203
if self.checker is None:
205
sys.stderr.write(u"Starting checker for %s\n"
331
# In case check_command has exactly one % operator
332
command = self.check_command % self.host
208
command = self.check_command % self.fqdn
333
209
except TypeError:
334
# Escape attributes for the shell
335
210
escaped_attrs = dict((key, re.escape(str(val)))
337
212
vars(self).iteritems())
339
command = self.check_command % escaped_attrs
340
except TypeError, error:
341
logger.error(u'Could not format string "%s":'
342
u' %s', self.check_command, error)
343
return True # Try again later
213
command = self.check_command % escaped_attrs
345
logger.info(u"Starting checker %r for %s",
347
# We don't need to redirect stdout and stderr, since
348
# in normal mode, that is already done by daemon(),
349
# and in debug mode we don't want to. (Stdin is
350
# always replaced by /dev/null.)
351
self.checker = subprocess.Popen(command,
354
self.checker_callback_tag = gobject.child_watch_add\
356
self.checker_callback)
357
except OSError, error:
358
logger.error(u"Failed to start subprocess: %s",
215
self.checker = subprocess.\
217
stdout=subprocess.PIPE,
218
close_fds=True, shell=True,
220
self.checker_callback_tag = gobject.\
221
child_watch_add(self.checker.pid,
224
except subprocess.OSError, error:
225
sys.stderr.write(u"Failed to start subprocess: %s\n"
360
227
# Re-run this periodically if run by gobject.timeout_add
362
229
def stop_checker(self):
363
230
"""Force the checker process, if any, to stop."""
364
if self.checker_callback_tag:
365
gobject.source_remove(self.checker_callback_tag)
366
self.checker_callback_tag = None
367
if getattr(self, "checker", None) is None:
231
if not hasattr(self, "checker") or self.checker is None:
369
logger.debug(u"Stopping checker for %(name)s", vars(self))
371
os.kill(self.checker.pid, signal.SIGTERM)
373
#if self.checker.poll() is None:
374
# os.kill(self.checker.pid, signal.SIGKILL)
375
except OSError, error:
376
if error.errno != errno.ESRCH: # No such process
233
gobject.source_remove(self.checker_callback_tag)
234
self.checker_callback_tag = None
235
os.kill(self.checker.pid, signal.SIGTERM)
236
if self.checker.poll() is None:
237
os.kill(self.checker.pid, signal.SIGKILL)
378
238
self.checker = None
379
def still_valid(self):
239
def still_valid(self, now=None):
380
240
"""Has the timeout not yet passed for this client?"""
381
now = datetime.datetime.now()
382
if self.last_checked_ok is None:
242
now = datetime.datetime.now()
243
if self.last_seen is None:
383
244
return now < (self.created + self.timeout)
385
return now < (self.last_checked_ok + self.timeout)
246
return now < (self.last_seen + self.timeout)
388
249
def peer_certificate(session):
389
"Return the peer's OpenPGP certificate as a bytestring"
390
250
# If not an OpenPGP certificate...
391
251
if gnutls.library.functions.gnutls_certificate_type_get\
392
252
(session._c_object) \
405
265
def fingerprint(openpgp):
406
"Convert an OpenPGP bytestring to a hexdigit fingerprint string"
266
# New empty GnuTLS certificate
267
crt = gnutls.library.types.gnutls_openpgp_crt_t()
268
gnutls.library.functions.gnutls_openpgp_crt_init\
407
270
# New GnuTLS "datum" with the OpenPGP public key
408
271
datum = gnutls.library.types.gnutls_datum_t\
409
272
(ctypes.cast(ctypes.c_char_p(openpgp),
410
273
ctypes.POINTER(ctypes.c_ubyte)),
411
274
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\
416
275
# 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")
276
ret = gnutls.library.functions.gnutls_openpgp_crt_import\
279
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
427
280
# New buffer for the fingerprint
428
buf = ctypes.create_string_buffer(20)
429
buf_len = ctypes.c_size_t()
281
buffer = ctypes.create_string_buffer(20)
282
buffer_length = ctypes.c_size_t()
430
283
# Get the fingerprint from the certificate into the buffer
431
284
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint\
432
(crt, ctypes.byref(buf), ctypes.byref(buf_len))
285
(crt, ctypes.byref(buffer), ctypes.byref(buffer_length))
433
286
# Deinit the certificate
434
287
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
435
288
# Convert the buffer to a Python bytestring
436
fpr = ctypes.string_at(buf, buf_len.value)
289
fpr = ctypes.string_at(buffer, buffer_length.value)
437
290
# Convert the bytestring to hexadecimal notation
438
291
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
442
class TCP_handler(SocketServer.BaseRequestHandler, object):
295
class tcp_handler(SocketServer.BaseRequestHandler, object):
443
296
"""A TCP request handler class.
444
297
Instantiated by IPv6_TCPServer for each request to handle it.
445
298
Note: This will run in its own forked process."""
447
300
def handle(self):
448
logger.info(u"TCP connection from: %s",
449
unicode(self.client_address))
450
session = gnutls.connection.ClientSession\
451
(self.request, gnutls.connection.X509Credentials())
453
line = self.request.makefile().readline()
454
logger.debug(u"Protocol version: %r", line)
456
if int(line.strip().split()[0]) > 1:
458
except (ValueError, IndexError, RuntimeError), error:
459
logger.error(u"Unknown protocol version: %s", error)
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.
302
sys.stderr.write(u"TCP request came\n")
303
sys.stderr.write(u"Request: %s\n" % self.request)
304
sys.stderr.write(u"Client Address: %s\n"
305
% unicode(self.client_address))
306
sys.stderr.write(u"Server: %s\n" % self.server)
307
session = gnutls.connection.ClientSession(self.request,
467
311
#priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
468
312
# "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
470
priority = "NORMAL" # Fallback default, since this
472
if self.server.settings["priority"]:
473
priority = self.server.settings["priority"]
314
priority = "SECURE256"
474
316
gnutls.library.functions.gnutls_priority_set_direct\
475
(session._c_object, priority, None)
317
(session._c_object, priority, None);
478
320
session.handshake()
479
321
except gnutls.errors.GNUTLSError, error:
480
logger.warning(u"Handshake failed: %s", error)
323
sys.stderr.write(u"Handshake failed: %s\n" % error)
481
324
# Do not run session.bye() here: the session is not
482
325
# established. Just abandon the request.
485
328
fpr = fingerprint(peer_certificate(session))
486
329
except (TypeError, gnutls.errors.GNUTLSError), error:
487
logger.warning(u"Bad certificate: %s", error)
331
sys.stderr.write(u"Bad certificate: %s\n" % error)
490
logger.debug(u"Fingerprint: %s", fpr)
335
sys.stderr.write(u"Fingerprint: %s\n" % fpr)
492
for c in self.server.clients:
493
338
if c.fingerprint == fpr:
497
logger.warning(u"Client not found for fingerprint: %s",
501
341
# Have to check if client.still_valid(), since it is possible
502
342
# that the client timed out while establishing the GnuTLS
504
if not client.still_valid():
505
logger.warning(u"Client %(name)s is invalid",
344
if (not client) or (not client.still_valid()):
347
sys.stderr.write(u"Client %(name)s is invalid\n"
350
sys.stderr.write(u"Client not found for "
351
u"fingerprint: %s\n" % fpr)
510
355
while sent_size < len(client.secret):
511
356
sent = session.send(client.secret[sent_size:])
512
logger.debug(u"Sent: %d, remaining: %d",
513
sent, len(client.secret)
514
- (sent_size + sent))
358
sys.stderr.write(u"Sent: %d, remaining: %d\n"
359
% (sent, len(client.secret)
360
- (sent_size + sent)))
515
361
sent_size += sent
588
421
datetime.timedelta(1)
589
422
>>> string_to_delta(u'1w')
590
423
datetime.timedelta(7)
591
>>> string_to_delta('5m 30s')
592
datetime.timedelta(0, 330)
594
timevalue = datetime.timedelta(0)
595
for s in interval.split():
597
suffix = unicode(s[-1])
600
delta = datetime.timedelta(value)
602
delta = datetime.timedelta(0, value)
604
delta = datetime.timedelta(0, 0, 0, 0, value)
606
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
608
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
611
except (ValueError, IndexError):
426
suffix=unicode(interval[-1])
427
value=int(interval[:-1])
429
delta = datetime.timedelta(value)
431
delta = datetime.timedelta(0, value)
433
delta = datetime.timedelta(0, 0, 0, 0, value)
435
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
437
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
440
except (ValueError, IndexError):
446
"""From the Avahi server example code"""
447
global group, serviceName, serviceType, servicePort, serviceTXT, \
450
group = dbus.Interface(
451
bus.get_object( avahi.DBUS_NAME,
452
server.EntryGroupNew()),
453
avahi.DBUS_INTERFACE_ENTRY_GROUP)
454
group.connect_to_signal('StateChanged',
455
entry_group_state_changed)
457
sys.stderr.write(u"Adding service '%s' of type '%s' ...\n"
458
% (serviceName, serviceType))
461
serviceInterface, # interface
462
avahi.PROTO_INET6, # protocol
463
dbus.UInt32(0), # flags
464
serviceName, serviceType,
466
dbus.UInt16(servicePort),
467
avahi.string_array_to_txt_array(serviceTXT))
471
def remove_service():
472
"""From the Avahi server example code"""
475
if not group is None:
617
479
def server_state_changed(state):
618
"""Derived from the Avahi example code"""
480
"""From the Avahi server example code"""
619
481
if state == avahi.SERVER_COLLISION:
620
logger.error(u"Zeroconf server name collision")
482
sys.stderr.write(u"WARNING: Server name collision\n")
622
484
elif state == avahi.SERVER_RUNNING:
626
488
def entry_group_state_changed(state, error):
627
"""Derived from the Avahi example code"""
628
logger.debug(u"Avahi state change: %i", state)
489
"""From the Avahi server example code"""
490
global serviceName, server, rename_count
493
sys.stderr.write(u"state change: %i\n" % state)
630
495
if state == avahi.ENTRY_GROUP_ESTABLISHED:
631
logger.debug(u"Zeroconf service established.")
497
sys.stderr.write(u"Service established.\n")
632
498
elif state == avahi.ENTRY_GROUP_COLLISION:
633
logger.warning(u"Zeroconf service name collision.")
500
rename_count = rename_count - 1
502
name = server.GetAlternativeServiceName(name)
503
sys.stderr.write(u"WARNING: Service name collision, "
504
u"changing name to '%s' ...\n" % name)
509
sys.stderr.write(u"ERROR: No suitable service name found "
510
u"after %i retries, exiting.\n"
635
513
elif state == avahi.ENTRY_GROUP_FAILURE:
636
logger.critical(u"Avahi: Error in group state changed %s",
638
raise AvahiGroupError("State changed: %s", str(error))
514
sys.stderr.write(u"Error in group state changed %s\n"
640
520
def if_nametoindex(interface):
641
"""Call the C function if_nametoindex(), or equivalent"""
642
global if_nametoindex
521
"""Call the C function if_nametoindex()"""
644
if_nametoindex = ctypes.cdll.LoadLibrary\
645
(ctypes.util.find_library("c")).if_nametoindex
523
libc = ctypes.cdll.LoadLibrary("libc.so.6")
524
return libc.if_nametoindex(interface)
646
525
except (OSError, AttributeError):
647
526
if "struct" not in sys.modules:
649
528
if "fcntl" not in sys.modules:
651
def if_nametoindex(interface):
652
"Get an interface index the hard way, i.e. using fcntl()"
653
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
655
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
656
struct.pack("16s16x", interface))
658
interface_index = struct.unpack("I", ifreq[16:20])[0]
659
return interface_index
660
return if_nametoindex(interface)
663
def daemon(nochdir = False, noclose = False):
664
"""See daemon(3). Standard BSD Unix function.
665
This should really exist as os.daemon, but it doesn't (yet)."""
674
# Close all standard open file descriptors
675
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
676
if not stat.S_ISCHR(os.fstat(null).st_mode):
677
raise OSError(errno.ENODEV,
678
"/dev/null not a character device")
679
os.dup2(null, sys.stdin.fileno())
680
os.dup2(null, sys.stdout.fileno())
681
os.dup2(null, sys.stderr.fileno())
687
parser = OptionParser(version = "%%prog %s" % version)
530
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
532
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
533
struct.pack("16s16x", interface))
535
interface_index = struct.unpack("I", ifreq[16:20])[0]
536
return interface_index
539
if __name__ == '__main__':
540
parser = OptionParser()
688
541
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",
542
default=None, metavar="IF",
543
help="Bind to interface IF")
544
parser.add_option("--cert", type="string", default="cert.pem",
546
help="Public key certificate PEM file to use")
547
parser.add_option("--key", type="string", default="key.pem",
549
help="Private key PEM file to use")
550
parser.add_option("--ca", type="string", default="ca.pem",
552
help="Certificate Authority certificate PEM file to use")
553
parser.add_option("--crl", type="string", default="crl.pem",
555
help="Certificate Revokation List PEM file to use")
556
parser.add_option("-p", "--port", type="int", default=None,
693
557
help="Port number to receive requests on")
558
parser.add_option("--timeout", type="string", # Parsed later
560
help="Amount of downtime allowed for clients")
561
parser.add_option("--interval", type="string", # Parsed later
563
help="How often to check that a client is up")
694
564
parser.add_option("--check", action="store_true", default=False,
695
565
help="Run self-test")
696
parser.add_option("--debug", action="store_true",
697
help="Debug mode; run in foreground and log to"
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"
707
options = parser.parse_args()[0]
566
parser.add_option("--debug", action="store_true", default=False,
568
(options, args) = parser.parse_args()
709
570
if options.check:
711
572
doctest.testmod()
714
# Default values for config file for server-global settings
715
server_defaults = { "interface": "",
720
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
721
"servicename": "Mandos",
724
# Parse config file for server-global settings
725
server_config = ConfigParser.SafeConfigParser(server_defaults)
727
server_config.read(os.path.join(options.configdir, "mandos.conf"))
728
# Convert the SafeConfigParser object to a dict
729
server_settings = server_config.defaults()
730
# Use getboolean on the boolean config option
731
server_settings["debug"] = server_config.getboolean\
735
# Override the settings from the config file with command line
737
for option in ("interface", "address", "port", "debug",
738
"priority", "servicename", "configdir"):
739
value = getattr(options, option)
740
if value is not None:
741
server_settings[option] = value
743
# Now we have our good server settings in "server_settings"
745
debug = server_settings["debug"]
748
syslogger.setLevel(logging.WARNING)
749
console.setLevel(logging.WARNING)
751
if server_settings["servicename"] != "Mandos":
752
syslogger.setFormatter(logging.Formatter\
753
('Mandos (%s): %%(levelname)s:'
755
% server_settings["servicename"]))
757
# Parse config file with clients
758
client_defaults = { "timeout": "1h",
760
"checker": "fping -q -- %(host)s",
763
client_config = ConfigParser.SafeConfigParser(client_defaults)
764
client_config.read(os.path.join(server_settings["configdir"],
768
tcp_server = IPv6_TCPServer((server_settings["address"],
769
server_settings["port"]),
771
settings=server_settings,
773
pidfilename = "/var/run/mandos.pid"
775
pidfile = open(pidfilename, "w")
776
except IOError, error:
777
logger.error("Could not open file %r", pidfilename)
782
uid = pwd.getpwnam("mandos").pw_uid
785
uid = pwd.getpwnam("nobody").pw_uid
789
gid = pwd.getpwnam("mandos").pw_gid
792
gid = pwd.getpwnam("nogroup").pw_gid
798
except OSError, error:
799
if error[0] != errno.EPERM:
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"])
812
# From the Avahi example code
575
# Parse the time arguments
577
options.timeout = string_to_delta(options.timeout)
579
parser.error("option --timeout: Unparseable time")
581
options.interval = string_to_delta(options.interval)
583
parser.error("option --interval: Unparseable time")
586
defaults = { "checker": "sleep 1; fping -q -- %%(fqdn)s" }
587
client_config = ConfigParser.SafeConfigParser(defaults)
588
#client_config.readfp(open("secrets.conf"), "secrets.conf")
589
client_config.read("mandos-clients.conf")
591
# From the Avahi server example code
813
592
DBusGMainLoop(set_as_default=True )
814
593
main_loop = gobject.MainLoop()
815
594
bus = dbus.SystemBus()
816
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
817
avahi.DBUS_PATH_SERVER),
818
avahi.DBUS_INTERFACE_SERVER)
595
server = dbus.Interface(
596
bus.get_object( avahi.DBUS_NAME, avahi.DBUS_PATH_SERVER ),
597
avahi.DBUS_INTERFACE_SERVER )
819
598
# End of Avahi example code
600
debug = options.debug
821
603
def remove_from_clients(client):
822
604
clients.remove(client)
824
logger.critical(u"No clients left, exiting")
607
sys.stderr.write(u"No clients left, exiting\n")
827
clients.update(Set(Client(name = section,
610
clients.update(Set(Client(name=section, options=options,
828
611
stop_hook = remove_from_clients,
830
= dict(client_config.items(section)))
612
**(dict(client_config\
831
614
for section in client_config.sections()))
833
logger.critical(u"No clients defined")
837
# Redirect stdin so all checkers get /dev/null
838
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
839
os.dup2(null, sys.stdin.fileno())
844
logger.removeHandler(console)
845
# Close all input and output, do double fork, etc.
850
pidfile.write(str(pid) + "\n")
854
logger.error(u"Could not write to file %r with PID %d",
857
# "pidfile" was never created
862
"Cleanup function; run on exit"
864
# From the Avahi example code
865
if not group is None:
868
# End of Avahi example code
871
client = clients.pop()
872
client.stop_hook = None
875
atexit.register(cleanup)
878
signal.signal(signal.SIGINT, signal.SIG_IGN)
879
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
880
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
882
615
for client in clients:
886
tcp_server.server_activate()
888
# Find out what port we got
889
service.port = tcp_server.socket.getsockname()[1]
890
logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
891
u" scope_id %d" % tcp_server.socket.getsockname())
893
#service.interface = tcp_server.socket.getsockname()[3]
618
tcp_server = IPv6_TCPServer((None, options.port),
622
# Find out what random port we got
623
servicePort = tcp_server.socket.getsockname()[1]
625
sys.stderr.write(u"Now listening on port %d\n" % servicePort)
627
if options.interface is not None:
628
serviceInterface = if_nametoindex(options.interface)
630
# From the Avahi server example code
631
server.connect_to_signal("StateChanged", server_state_changed)
632
server_state_changed(server.GetState())
633
# End of Avahi example code
635
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
636
lambda *args, **kwargs:
637
tcp_server.handle_request(*args[2:],
896
# From the Avahi example code
897
server.connect_to_signal("StateChanged", server_state_changed)
899
server_state_changed(server.GetState())
900
except dbus.exceptions.DBusException, error:
901
logger.critical(u"DBusException: %s", error)
903
# End of Avahi example code
905
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
906
lambda *args, **kwargs:
907
tcp_server.handle_request\
908
(*args[2:], **kwargs) or True)
910
logger.debug(u"Starting main loop")
912
except AvahiError, error:
913
logger.critical(u"AvahiError: %s" + unicode(error))
915
641
except KeyboardInterrupt:
919
if __name__ == '__main__':
646
# From the Avahi server example code
647
if not group is None:
649
# End of Avahi example code
651
for client in clients:
652
client.stop_hook = None