22
51
from sets import Set
56
import logging.handlers
28
62
from dbus.mainloop.glib import DBusGMainLoop
32
import logging.handlers
34
# logghandler.setFormatter(logging.Formatter('%(levelname)s %(message)s')
36
68
logger = logging.Logger('mandos')
37
logger.addHandler(logging.handlers.SysLogHandler(facility = logging.handlers.SysLogHandler.LOG_DAEMON))
39
# This variable is used to optionally bind to a specified interface.
40
# It is a global variable to fit in with the other variables from the
41
# Avahi server example code.
42
serviceInterface = avahi.IF_UNSPEC
43
# From the Avahi server example code:
44
serviceName = "Mandos"
45
serviceType = "_mandos._tcp" # http://www.dns-sd.org/ServiceTypes.html
46
servicePort = None # Not known at startup
47
serviceTXT = [] # TXT record for the service
48
domain = "" # Domain to publish on, default to .local
49
host = "" # Host to publish records for, default to localhost
50
group = None #our entry group
51
rename_count = 12 # Counter so we only rename after collisions a
52
# sensible number of times
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
53
170
# End of Avahi example code
171
293
# Do not run this again if called by a gobject.timeout_add
173
295
def __del__(self):
174
# Some code duplication here and in stop()
175
if hasattr(self, "stop_initiator_tag") \
176
and self.stop_initiator_tag:
177
gobject.source_remove(self.stop_initiator_tag)
178
self.stop_initiator_tag = None
179
if hasattr(self, "checker_initiator_tag") \
180
and self.checker_initiator_tag:
181
gobject.source_remove(self.checker_initiator_tag)
182
self.checker_initiator_tag = None
296
self.stop_hook = None
184
298
def checker_callback(self, pid, condition):
185
299
"""The checker has completed, so take appropriate actions."""
186
300
now = datetime.datetime.now()
301
self.checker_callback_tag = None
187
303
if os.WIFEXITED(condition) \
188
304
and (os.WEXITSTATUS(condition) == 0):
189
logger.debug(u"Checker for %(name)s succeeded",
305
logger.info(u"Checker for %(name)s succeeded",
307
self.last_checked_ok = now
192
308
gobject.source_remove(self.stop_initiator_tag)
193
309
self.stop_initiator_tag = gobject.timeout_add\
194
310
(self._timeout_milliseconds,
196
if not os.WIFEXITED(condition):
312
elif not os.WIFEXITED(condition):
197
313
logger.warning(u"Checker for %(name)s crashed?",
200
logger.debug(u"Checker for %(name)s failed",
203
self.checker_callback_tag = None
316
logger.info(u"Checker for %(name)s failed",
204
318
def start_checker(self):
205
319
"""Start a new checker subprocess if one is not running.
206
320
If a checker already exists, leave it running and do
322
# The reason for not killing a running checker is that if we
323
# did that, then if a checker (for some reason) started
324
# running slowly and taking more than 'interval' time, the
325
# client would inevitably timeout, since no checker would get
326
# a chance to run to completion. If we instead leave running
327
# checkers alone, the checker would have to take more time
328
# than 'timeout' for the client to be declared invalid, which
329
# is as it should be.
208
330
if self.checker is None:
209
logger.debug(u"Starting checker for %s",
212
command = self.check_command % self.fqdn
332
# In case check_command has exactly one % operator
333
command = self.check_command % self.host
213
334
except TypeError:
335
# Escape attributes for the shell
214
336
escaped_attrs = dict((key, re.escape(str(val)))
216
338
vars(self).iteritems())
218
340
command = self.check_command % escaped_attrs
219
341
except TypeError, error:
220
logger.critical(u'Could not format string "%s": %s',
221
self.check_command, error)
342
logger.error(u'Could not format string "%s":'
343
u' %s', self.check_command, error)
222
344
return True # Try again later
224
self.checker = subprocess.\
226
stdout=subprocess.PIPE,
227
close_fds=True, shell=True,
229
self.checker_callback_tag = gobject.\
230
child_watch_add(self.checker.pid,
233
except subprocess.OSError, error:
346
logger.info(u"Starting checker %r for %s",
348
# We don't need to redirect stdout and stderr, since
349
# in normal mode, that is already done by daemon(),
350
# and in debug mode we don't want to. (Stdin is
351
# always replaced by /dev/null.)
352
self.checker = subprocess.Popen(command,
355
self.checker_callback_tag = gobject.child_watch_add\
357
self.checker_callback)
358
except OSError, error:
234
359
logger.error(u"Failed to start subprocess: %s",
236
361
# Re-run this periodically if run by gobject.timeout_add
238
363
def stop_checker(self):
239
364
"""Force the checker process, if any, to stop."""
240
if not hasattr(self, "checker") or self.checker is None:
365
if self.checker_callback_tag:
366
gobject.source_remove(self.checker_callback_tag)
367
self.checker_callback_tag = None
368
if getattr(self, "checker", None) is None:
242
gobject.source_remove(self.checker_callback_tag)
243
self.checker_callback_tag = None
244
os.kill(self.checker.pid, signal.SIGTERM)
245
if self.checker.poll() is None:
246
os.kill(self.checker.pid, signal.SIGKILL)
370
logger.debug(u"Stopping checker for %(name)s", vars(self))
372
os.kill(self.checker.pid, signal.SIGTERM)
374
#if self.checker.poll() is None:
375
# os.kill(self.checker.pid, signal.SIGKILL)
376
except OSError, error:
377
if error.errno != errno.ESRCH: # No such process
247
379
self.checker = None
248
def still_valid(self, now=None):
380
def still_valid(self):
249
381
"""Has the timeout not yet passed for this client?"""
251
now = datetime.datetime.now()
252
if self.last_seen is None:
382
now = datetime.datetime.now()
383
if self.last_checked_ok is None:
253
384
return now < (self.created + self.timeout)
255
return now < (self.last_seen + self.timeout)
386
return now < (self.last_checked_ok + self.timeout)
258
389
def peer_certificate(session):
390
"Return the peer's OpenPGP certificate as a bytestring"
259
391
# If not an OpenPGP certificate...
260
392
if gnutls.library.functions.gnutls_certificate_type_get\
261
393
(session._c_object) \
274
406
def fingerprint(openpgp):
275
# New empty GnuTLS certificate
276
crt = gnutls.library.types.gnutls_openpgp_crt_t()
277
gnutls.library.functions.gnutls_openpgp_crt_init\
407
"Convert an OpenPGP bytestring to a hexdigit fingerprint string"
279
408
# New GnuTLS "datum" with the OpenPGP public key
280
409
datum = gnutls.library.types.gnutls_datum_t\
281
410
(ctypes.cast(ctypes.c_char_p(openpgp),
282
411
ctypes.POINTER(ctypes.c_ubyte)),
283
412
ctypes.c_uint(len(openpgp)))
413
# New empty GnuTLS certificate
414
crt = gnutls.library.types.gnutls_openpgp_crt_t()
415
gnutls.library.functions.gnutls_openpgp_crt_init\
284
417
# Import the OpenPGP public key into the certificate
285
ret = gnutls.library.functions.gnutls_openpgp_crt_import\
288
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
418
gnutls.library.functions.gnutls_openpgp_crt_import\
419
(crt, ctypes.byref(datum),
420
gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)
421
# Verify the self signature in the key
422
crtverify = ctypes.c_uint()
423
gnutls.library.functions.gnutls_openpgp_crt_verify_self\
424
(crt, 0, ctypes.byref(crtverify))
425
if crtverify.value != 0:
426
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
427
raise gnutls.errors.CertificateSecurityError("Verify failed")
289
428
# New buffer for the fingerprint
290
buffer = ctypes.create_string_buffer(20)
291
buffer_length = ctypes.c_size_t()
429
buf = ctypes.create_string_buffer(20)
430
buf_len = ctypes.c_size_t()
292
431
# Get the fingerprint from the certificate into the buffer
293
432
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint\
294
(crt, ctypes.byref(buffer), ctypes.byref(buffer_length))
433
(crt, ctypes.byref(buf), ctypes.byref(buf_len))
295
434
# Deinit the certificate
296
435
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
297
436
# Convert the buffer to a Python bytestring
298
fpr = ctypes.string_at(buffer, buffer_length.value)
437
fpr = ctypes.string_at(buf, buf_len.value)
299
438
# Convert the bytestring to hexadecimal notation
300
439
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
304
class tcp_handler(SocketServer.BaseRequestHandler, object):
443
class TCP_handler(SocketServer.BaseRequestHandler, object):
305
444
"""A TCP request handler class.
306
445
Instantiated by IPv6_TCPServer for each request to handle it.
307
446
Note: This will run in its own forked process."""
309
448
def handle(self):
310
logger.debug(u"TCP connection from: %s",
449
logger.info(u"TCP connection from: %s",
311
450
unicode(self.client_address))
312
session = gnutls.connection.ClientSession(self.request,
451
session = gnutls.connection.ClientSession\
452
(self.request, gnutls.connection.X509Credentials())
454
line = self.request.makefile().readline()
455
logger.debug(u"Protocol version: %r", line)
457
if int(line.strip().split()[0]) > 1:
459
except (ValueError, IndexError, RuntimeError), error:
460
logger.error(u"Unknown protocol version: %s", error)
463
# Note: gnutls.connection.X509Credentials is really a generic
464
# GnuTLS certificate credentials object so long as no X.509
465
# keys are added to it. Therefore, we can use it here despite
466
# using OpenPGP certificates.
316
468
#priority = ':'.join(("NONE", "+VERS-TLS1.1", "+AES-256-CBC",
317
469
# "+SHA1", "+COMP-NULL", "+CTYPE-OPENPGP",
319
priority = "SECURE256"
471
priority = "NORMAL" # Fallback default, since this
473
if self.server.settings["priority"]:
474
priority = self.server.settings["priority"]
321
475
gnutls.library.functions.gnutls_priority_set_direct\
322
(session._c_object, priority, None);
476
(session._c_object, priority, None)
325
479
session.handshake()
326
480
except gnutls.errors.GNUTLSError, error:
327
logger.debug(u"Handshake failed: %s", error)
481
logger.warning(u"Handshake failed: %s", error)
328
482
# Do not run session.bye() here: the session is not
329
483
# established. Just abandon the request.
332
486
fpr = fingerprint(peer_certificate(session))
333
487
except (TypeError, gnutls.errors.GNUTLSError), error:
334
logger.debug(u"Bad certificate: %s", error)
488
logger.warning(u"Bad certificate: %s", error)
337
491
logger.debug(u"Fingerprint: %s", fpr)
493
for c in self.server.clients:
340
494
if c.fingerprint == fpr:
498
logger.warning(u"Client not found for fingerprint: %s",
343
502
# Have to check if client.still_valid(), since it is possible
344
503
# that the client timed out while establishing the GnuTLS
346
if (not client) or (not client.still_valid()):
348
logger.debug(u"Client %(name)s is invalid",
351
logger.debug(u"Client not found for fingerprint: %s",
505
if not client.still_valid():
506
logger.warning(u"Client %(name)s is invalid",
421
589
datetime.timedelta(1)
422
590
>>> string_to_delta(u'1w')
423
591
datetime.timedelta(7)
592
>>> string_to_delta('5m 30s')
593
datetime.timedelta(0, 330)
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)
595
timevalue = datetime.timedelta(0)
596
for s in interval.split():
598
suffix = unicode(s[-1])
601
delta = datetime.timedelta(value)
603
delta = datetime.timedelta(0, value)
605
delta = datetime.timedelta(0, 0, 0, 0, value)
607
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
609
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
612
except (ValueError, IndexError):
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)
456
logger.debug(u"Adding service '%s' of type '%s' ...",
457
serviceName, serviceType)
460
serviceInterface, # interface
461
avahi.PROTO_INET6, # protocol
462
dbus.UInt32(0), # flags
463
serviceName, serviceType,
465
dbus.UInt16(servicePort),
466
avahi.string_array_to_txt_array(serviceTXT))
470
def remove_service():
471
"""From the Avahi server example code"""
474
if not group is None:
478
618
def server_state_changed(state):
479
"""From the Avahi server example code"""
619
"""Derived from the Avahi example code"""
480
620
if state == avahi.SERVER_COLLISION:
481
logger.warning(u"Server name collision")
621
logger.error(u"Zeroconf server name collision")
483
623
elif state == avahi.SERVER_RUNNING:
487
627
def entry_group_state_changed(state, error):
488
"""From the Avahi server example code"""
489
global serviceName, server, rename_count
491
logger.debug(u"state change: %i", state)
628
"""Derived from the Avahi example code"""
629
logger.debug(u"Avahi state change: %i", state)
493
631
if state == avahi.ENTRY_GROUP_ESTABLISHED:
494
logger.debug(u"Service established.")
632
logger.debug(u"Zeroconf service established.")
495
633
elif state == avahi.ENTRY_GROUP_COLLISION:
497
rename_count = rename_count - 1
499
name = server.GetAlternativeServiceName(name)
500
logger.warning(u"Service name collision, "
501
u"changing name to '%s' ...", name)
506
logger.error(u"No suitable service name found "
507
u"after %i retries, exiting.",
634
logger.warning(u"Zeroconf service name collision.")
510
636
elif state == avahi.ENTRY_GROUP_FAILURE:
511
logger.error(u"Error in group state changed %s",
637
logger.critical(u"Avahi: Error in group state changed %s",
639
raise AvahiGroupError("State changed: %s", str(error))
517
641
def if_nametoindex(interface):
518
"""Call the C function if_nametoindex()"""
642
"""Call the C function if_nametoindex(), or equivalent"""
643
global if_nametoindex
520
libc = ctypes.cdll.LoadLibrary("libc.so.6")
521
return libc.if_nametoindex(interface)
645
if_nametoindex = ctypes.cdll.LoadLibrary\
646
(ctypes.util.find_library("c")).if_nametoindex
522
647
except (OSError, AttributeError):
523
648
if "struct" not in sys.modules:
525
650
if "fcntl" not in sys.modules:
527
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
529
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
530
struct.pack("16s16x", interface))
532
interface_index = struct.unpack("I", ifreq[16:20])[0]
533
return interface_index
536
if __name__ == '__main__':
537
parser = OptionParser()
652
def if_nametoindex(interface):
653
"Get an interface index the hard way, i.e. using fcntl()"
654
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
656
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
657
struct.pack("16s16x", interface))
659
interface_index = struct.unpack("I", ifreq[16:20])[0]
660
return interface_index
661
return if_nametoindex(interface)
664
def daemon(nochdir = False, noclose = False):
665
"""See daemon(3). Standard BSD Unix function.
666
This should really exist as os.daemon, but it doesn't (yet)."""
675
# Close all standard open file descriptors
676
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
677
if not stat.S_ISCHR(os.fstat(null).st_mode):
678
raise OSError(errno.ENODEV,
679
"/dev/null not a character device")
680
os.dup2(null, sys.stdin.fileno())
681
os.dup2(null, sys.stdout.fileno())
682
os.dup2(null, sys.stderr.fileno())
688
parser = OptionParser(version = "%%prog %s" % version)
538
689
parser.add_option("-i", "--interface", type="string",
539
default=None, metavar="IF",
540
help="Bind to interface IF")
541
parser.add_option("--cert", type="string", default="cert.pem",
543
help="Public key certificate PEM file to use")
544
parser.add_option("--key", type="string", default="key.pem",
546
help="Private key PEM file to use")
547
parser.add_option("--ca", type="string", default="ca.pem",
549
help="Certificate Authority certificate PEM file to use")
550
parser.add_option("--crl", type="string", default="crl.pem",
552
help="Certificate Revokation List PEM file to use")
553
parser.add_option("-p", "--port", type="int", default=None,
690
metavar="IF", help="Bind to interface IF")
691
parser.add_option("-a", "--address", type="string",
692
help="Address to listen for requests on")
693
parser.add_option("-p", "--port", type="int",
554
694
help="Port number to receive requests on")
555
parser.add_option("--timeout", type="string", # Parsed later
557
help="Amount of downtime allowed for clients")
558
parser.add_option("--interval", type="string", # Parsed later
560
help="How often to check that a client is up")
561
695
parser.add_option("--check", action="store_true", default=False,
562
696
help="Run self-test")
563
parser.add_option("--debug", action="store_true", default=False,
565
(options, args) = parser.parse_args()
697
parser.add_option("--debug", action="store_true",
698
help="Debug mode; run in foreground and log to"
700
parser.add_option("--priority", type="string", help="GnuTLS"
701
" priority string (see GnuTLS documentation)")
702
parser.add_option("--servicename", type="string", metavar="NAME",
703
help="Zeroconf service name")
704
parser.add_option("--configdir", type="string",
705
default="/etc/mandos", metavar="DIR",
706
help="Directory to search for configuration"
708
options = parser.parse_args()[0]
567
710
if options.check:
569
712
doctest.testmod()
572
# Parse the time arguments
574
options.timeout = string_to_delta(options.timeout)
576
parser.error("option --timeout: Unparseable time")
578
options.interval = string_to_delta(options.interval)
580
parser.error("option --interval: Unparseable time")
583
defaults = { "checker": "sleep 1; fping -q -- %%(fqdn)s" }
584
client_config = ConfigParser.SafeConfigParser(defaults)
585
#client_config.readfp(open("secrets.conf"), "secrets.conf")
586
client_config.read("mandos-clients.conf")
588
# From the Avahi server example code
715
# Default values for config file for server-global settings
716
server_defaults = { "interface": "",
721
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
722
"servicename": "Mandos",
725
# Parse config file for server-global settings
726
server_config = ConfigParser.SafeConfigParser(server_defaults)
728
server_config.read(os.path.join(options.configdir, "mandos.conf"))
729
# Convert the SafeConfigParser object to a dict
730
server_settings = server_config.defaults()
731
# Use getboolean on the boolean config option
732
server_settings["debug"] = server_config.getboolean\
736
# Override the settings from the config file with command line
738
for option in ("interface", "address", "port", "debug",
739
"priority", "servicename", "configdir"):
740
value = getattr(options, option)
741
if value is not None:
742
server_settings[option] = value
744
# Now we have our good server settings in "server_settings"
746
debug = server_settings["debug"]
749
syslogger.setLevel(logging.WARNING)
750
console.setLevel(logging.WARNING)
752
if server_settings["servicename"] != "Mandos":
753
syslogger.setFormatter(logging.Formatter\
754
('Mandos (%s): %%(levelname)s:'
756
% server_settings["servicename"]))
758
# Parse config file with clients
759
client_defaults = { "timeout": "1h",
761
"checker": "fping -q -- %(host)s",
764
client_config = ConfigParser.SafeConfigParser(client_defaults)
765
client_config.read(os.path.join(server_settings["configdir"],
769
tcp_server = IPv6_TCPServer((server_settings["address"],
770
server_settings["port"]),
772
settings=server_settings,
774
pidfilename = "/var/run/mandos.pid"
776
pidfile = open(pidfilename, "w")
777
except IOError, error:
778
logger.error("Could not open file %r", pidfilename)
783
uid = pwd.getpwnam("mandos").pw_uid
786
uid = pwd.getpwnam("nobody").pw_uid
790
gid = pwd.getpwnam("mandos").pw_gid
793
gid = pwd.getpwnam("nogroup").pw_gid
799
except OSError, error:
800
if error[0] != errno.EPERM:
804
service = AvahiService(name = server_settings["servicename"],
805
servicetype = "_mandos._tcp", )
806
if server_settings["interface"]:
807
service.interface = if_nametoindex\
808
(server_settings["interface"])
813
# From the Avahi example code
589
814
DBusGMainLoop(set_as_default=True )
590
815
main_loop = gobject.MainLoop()
591
816
bus = dbus.SystemBus()
592
server = dbus.Interface(
593
bus.get_object( avahi.DBUS_NAME, avahi.DBUS_PATH_SERVER ),
594
avahi.DBUS_INTERFACE_SERVER )
817
server = dbus.Interface(bus.get_object(avahi.DBUS_NAME,
818
avahi.DBUS_PATH_SERVER),
819
avahi.DBUS_INTERFACE_SERVER)
595
820
# End of Avahi example code
597
debug = options.debug
600
822
def remove_from_clients(client):
601
823
clients.remove(client)
603
logger.debug(u"No clients left, exiting")
825
logger.critical(u"No clients left, exiting")
606
clients.update(Set(Client(name=section, options=options,
828
clients.update(Set(Client(name = section,
607
829
stop_hook = remove_from_clients,
608
**(dict(client_config\
831
= dict(client_config.items(section)))
610
832
for section in client_config.sections()))
834
logger.critical(u"No clients defined")
838
# Redirect stdin so all checkers get /dev/null
839
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
840
os.dup2(null, sys.stdin.fileno())
845
logger.removeHandler(console)
846
# Close all input and output, do double fork, etc.
851
pidfile.write(str(pid) + "\n")
855
logger.error(u"Could not write to file %r with PID %d",
858
# "pidfile" was never created
863
"Cleanup function; run on exit"
865
# From the Avahi example code
866
if not group is None:
869
# End of Avahi example code
872
client = clients.pop()
873
client.stop_hook = None
876
atexit.register(cleanup)
879
signal.signal(signal.SIGINT, signal.SIG_IGN)
880
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
881
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
611
883
for client in clients:
614
tcp_server = IPv6_TCPServer((None, options.port),
618
# Find out what random port we got
619
servicePort = tcp_server.socket.getsockname()[1]
620
logger.debug(u"Now listening on port %d", servicePort)
622
if options.interface is not None:
623
serviceInterface = if_nametoindex(options.interface)
625
# From the Avahi server example code
626
server.connect_to_signal("StateChanged", server_state_changed)
627
server_state_changed(server.GetState())
628
# End of Avahi example code
630
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
631
lambda *args, **kwargs:
632
tcp_server.handle_request(*args[2:],
887
tcp_server.server_activate()
889
# Find out what port we got
890
service.port = tcp_server.socket.getsockname()[1]
891
logger.info(u"Now listening on address %r, port %d, flowinfo %d,"
892
u" scope_id %d" % tcp_server.socket.getsockname())
894
#service.interface = tcp_server.socket.getsockname()[3]
897
# From the Avahi example code
898
server.connect_to_signal("StateChanged", server_state_changed)
900
server_state_changed(server.GetState())
901
except dbus.exceptions.DBusException, error:
902
logger.critical(u"DBusException: %s", error)
904
# End of Avahi example code
906
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
907
lambda *args, **kwargs:
908
tcp_server.handle_request\
909
(*args[2:], **kwargs) or True)
911
logger.debug(u"Starting main loop")
913
except AvahiError, error:
914
logger.critical(u"AvahiError: %s" + unicode(error))
636
916
except KeyboardInterrupt:
641
# From the Avahi server example code
642
if not group is None:
644
# End of Avahi example code
646
for client in clients:
647
client.stop_hook = None
920
if __name__ == '__main__':