97
80
except ImportError:
98
81
SO_BINDTODEVICE = None
100
if sys.version_info.major == 2:
104
stored_state_file = "clients.pickle"
106
logger = logging.getLogger()
110
if_nametoindex = ctypes.cdll.LoadLibrary(
111
ctypes.util.find_library("c")).if_nametoindex
112
except (OSError, AttributeError):
114
def if_nametoindex(interface):
115
"Get an interface index the hard way, i.e. using fcntl()"
116
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
117
with contextlib.closing(socket.socket()) as s:
118
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
119
struct.pack(b"16s16x", interface))
120
interface_index = struct.unpack("I", ifreq[16:20])[0]
121
return interface_index
124
def copy_function(func):
125
"""Make a copy of a function"""
126
if sys.version_info.major == 2:
127
return types.FunctionType(func.func_code,
133
return types.FunctionType(func.__code__,
140
def initlogger(debug, level=logging.WARNING):
141
"""init logger and add loglevel"""
144
syslogger = (logging.handlers.SysLogHandler(
145
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
146
address = "/dev/log"))
147
syslogger.setFormatter(logging.Formatter
148
('Mandos [%(process)d]: %(levelname)s:'
150
logger.addHandler(syslogger)
153
console = logging.StreamHandler()
154
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
158
logger.addHandler(console)
159
logger.setLevel(level)
162
class PGPError(Exception):
163
"""Exception if encryption/decryption fails"""
167
class PGPEngine(object):
168
"""A simple class for OpenPGP symmetric encryption & decryption"""
171
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
174
output = subprocess.check_output(["gpgconf"])
175
for line in output.splitlines():
176
name, text, path = line.split(b":")
181
if e.errno != errno.ENOENT:
183
self.gnupgargs = ['--batch',
184
'--homedir', self.tempdir,
192
def __exit__(self, exc_type, exc_value, traceback):
200
if self.tempdir is not None:
201
# Delete contents of tempdir
202
for root, dirs, files in os.walk(self.tempdir,
204
for filename in files:
205
os.remove(os.path.join(root, filename))
207
os.rmdir(os.path.join(root, dirname))
209
os.rmdir(self.tempdir)
212
def password_encode(self, password):
213
# Passphrase can not be empty and can not contain newlines or
214
# NUL bytes. So we prefix it and hex encode it.
215
encoded = b"mandos" + binascii.hexlify(password)
216
if len(encoded) > 2048:
217
# GnuPG can't handle long passwords, so encode differently
218
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
219
.replace(b"\n", b"\\n")
220
.replace(b"\0", b"\\x00"))
223
def encrypt(self, data, password):
224
passphrase = self.password_encode(password)
225
with tempfile.NamedTemporaryFile(
226
dir=self.tempdir) as passfile:
227
passfile.write(passphrase)
229
proc = subprocess.Popen([self.gpg, '--symmetric',
233
stdin = subprocess.PIPE,
234
stdout = subprocess.PIPE,
235
stderr = subprocess.PIPE)
236
ciphertext, err = proc.communicate(input = data)
237
if proc.returncode != 0:
241
def decrypt(self, data, password):
242
passphrase = self.password_encode(password)
243
with tempfile.NamedTemporaryFile(
244
dir = self.tempdir) as passfile:
245
passfile.write(passphrase)
247
proc = subprocess.Popen([self.gpg, '--decrypt',
251
stdin = subprocess.PIPE,
252
stdout = subprocess.PIPE,
253
stderr = subprocess.PIPE)
254
decrypted_plaintext, err = proc.communicate(input = data)
255
if proc.returncode != 0:
257
return decrypted_plaintext
259
# Pretend that we have an Avahi module
261
"""This isn't so much a class as it is a module-like namespace.
262
It is instantiated once, and simulates having an Avahi module."""
263
IF_UNSPEC = -1 # avahi-common/address.h
264
PROTO_UNSPEC = -1 # avahi-common/address.h
265
PROTO_INET = 0 # avahi-common/address.h
266
PROTO_INET6 = 1 # avahi-common/address.h
267
DBUS_NAME = "org.freedesktop.Avahi"
268
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
269
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
270
DBUS_PATH_SERVER = "/"
271
def string_array_to_txt_array(self, t):
272
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
273
for s in t), signature="ay")
274
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
275
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
276
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
277
SERVER_INVALID = 0 # avahi-common/defs.h
278
SERVER_REGISTERING = 1 # avahi-common/defs.h
279
SERVER_RUNNING = 2 # avahi-common/defs.h
280
SERVER_COLLISION = 3 # avahi-common/defs.h
281
SERVER_FAILURE = 4 # avahi-common/defs.h
86
#logger = logging.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
88
syslogger = (logging.handlers.SysLogHandler
89
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
90
address = "/dev/log"))
91
syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
94
logger.addHandler(syslogger)
96
console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
100
logger.addHandler(console)
284
102
class AvahiError(Exception):
285
103
def __init__(self, value, *args, **kwargs):
286
104
self.value = value
287
return super(AvahiError, self).__init__(value, *args,
105
super(AvahiError, self).__init__(value, *args, **kwargs)
106
def __unicode__(self):
107
return unicode(repr(self.value))
291
109
class AvahiServiceError(AvahiError):
295
112
class AvahiGroupError(AvahiError):
399
197
dbus.UInt16(self.port),
400
198
avahi.string_array_to_txt_array(self.TXT))
401
199
self.group.Commit()
403
200
def entry_group_state_changed(self, state, error):
404
201
"""Derived from the Avahi example code"""
405
logger.debug("Avahi entry group state change: %i", state)
202
logger.debug(u"Avahi entry group state change: %i", state)
407
204
if state == avahi.ENTRY_GROUP_ESTABLISHED:
408
logger.debug("Zeroconf service established.")
205
logger.debug(u"Zeroconf service established.")
409
206
elif state == avahi.ENTRY_GROUP_COLLISION:
410
logger.info("Zeroconf service name collision.")
207
logger.warning(u"Zeroconf service name collision.")
412
209
elif state == avahi.ENTRY_GROUP_FAILURE:
413
logger.critical("Avahi: Error in group state changed %s",
415
raise AvahiGroupError("State changed: {!s}".format(error))
210
logger.critical(u"Avahi: Error in group state changed %s",
212
raise AvahiGroupError(u"State changed: %s"
417
214
def cleanup(self):
418
215
"""Derived from the Avahi example code"""
419
216
if self.group is not None:
422
except (dbus.exceptions.UnknownMethodException,
423
dbus.exceptions.DBusException):
425
218
self.group = None
428
def server_state_changed(self, state, error=None):
219
def server_state_changed(self, state):
429
220
"""Derived from the Avahi example code"""
430
logger.debug("Avahi server state change: %i", state)
432
avahi.SERVER_INVALID: "Zeroconf server invalid",
433
avahi.SERVER_REGISTERING: None,
434
avahi.SERVER_COLLISION: "Zeroconf server name collision",
435
avahi.SERVER_FAILURE: "Zeroconf server failure",
437
if state in bad_states:
438
if bad_states[state] is not None:
440
logger.error(bad_states[state])
442
logger.error(bad_states[state] + ": %r", error)
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
444
225
elif state == avahi.SERVER_RUNNING:
447
except dbus.exceptions.DBusException as error:
448
if (error.get_dbus_name()
449
== "org.freedesktop.Avahi.CollisionError"):
450
logger.info("Local Zeroconf service name"
452
return self.rename(remove=False)
454
logger.critical("D-Bus Exception", exc_info=error)
459
logger.debug("Unknown state: %r", state)
461
logger.debug("Unknown state: %r: %r", state, error)
463
227
def activate(self):
464
228
"""Derived from the Avahi example code"""
465
229
if self.server is None:
466
230
self.server = dbus.Interface(
467
231
self.bus.get_object(avahi.DBUS_NAME,
468
avahi.DBUS_PATH_SERVER,
469
follow_name_owner_changes=True),
232
avahi.DBUS_PATH_SERVER),
470
233
avahi.DBUS_INTERFACE_SERVER)
471
self.server.connect_to_signal("StateChanged",
472
self.server_state_changed)
234
self.server.connect_to_signal(u"StateChanged",
235
self.server_state_changed)
473
236
self.server_state_changed(self.server.GetState())
476
class AvahiServiceToSyslog(AvahiService):
477
def rename(self, *args, **kwargs):
478
"""Add the new name to the syslog messages"""
479
ret = AvahiService.rename(self, *args, **kwargs)
480
syslogger.setFormatter(logging.Formatter(
481
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
485
# Pretend that we have a GnuTLS module
486
class GnuTLS(object):
487
"""This isn't so much a class as it is a module-like namespace.
488
It is instantiated once, and simulates having a GnuTLS module."""
490
_library = ctypes.cdll.LoadLibrary(
491
ctypes.util.find_library("gnutls"))
492
_need_version = b"3.3.0"
494
# Need to use class name "GnuTLS" here, since this method is
495
# called before the assignment to the "gnutls" global variable
497
if GnuTLS.check_version(self._need_version) is None:
498
raise GnuTLS.Error("Needs GnuTLS {} or later"
499
.format(self._need_version))
501
# Unless otherwise indicated, the constants and types below are
502
# all from the gnutls/gnutls.h C header file.
512
E_NO_CERTIFICATE_FOUND = -49
513
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
516
class session_int(ctypes.Structure):
518
session_t = ctypes.POINTER(session_int)
519
class certificate_credentials_st(ctypes.Structure):
521
certificate_credentials_t = ctypes.POINTER(
522
certificate_credentials_st)
523
certificate_type_t = ctypes.c_int
524
class datum_t(ctypes.Structure):
525
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
526
('size', ctypes.c_uint)]
527
class openpgp_crt_int(ctypes.Structure):
529
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
530
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
531
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
532
credentials_type_t = ctypes.c_int
533
transport_ptr_t = ctypes.c_void_p
534
close_request_t = ctypes.c_int
537
class Error(Exception):
538
# We need to use the class name "GnuTLS" here, since this
539
# exception might be raised from within GnuTLS.__init__,
540
# which is called before the assignment to the "gnutls"
541
# global variable has happened.
542
def __init__(self, message = None, code = None, args=()):
543
# Default usage is by a message string, but if a return
544
# code is passed, convert it to a string with
547
if message is None and code is not None:
548
message = GnuTLS.strerror(code)
549
return super(GnuTLS.Error, self).__init__(
552
class CertificateSecurityError(Error):
556
class Credentials(object):
558
self._c_object = gnutls.certificate_credentials_t()
559
gnutls.certificate_allocate_credentials(
560
ctypes.byref(self._c_object))
561
self.type = gnutls.CRD_CERTIFICATE
564
gnutls.certificate_free_credentials(self._c_object)
566
class ClientSession(object):
567
def __init__(self, socket, credentials = None):
568
self._c_object = gnutls.session_t()
569
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
570
gnutls.set_default_priority(self._c_object)
571
gnutls.transport_set_ptr(self._c_object, socket.fileno())
572
gnutls.handshake_set_private_extensions(self._c_object,
575
if credentials is None:
576
credentials = gnutls.Credentials()
577
gnutls.credentials_set(self._c_object, credentials.type,
578
ctypes.cast(credentials._c_object,
580
self.credentials = credentials
583
gnutls.deinit(self._c_object)
586
return gnutls.handshake(self._c_object)
588
def send(self, data):
592
data_len -= gnutls.record_send(self._c_object,
597
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
599
# Error handling functions
600
def _error_code(result):
601
"""A function to raise exceptions on errors, suitable
602
for the 'restype' attribute on ctypes functions"""
605
if result == gnutls.E_NO_CERTIFICATE_FOUND:
606
raise gnutls.CertificateSecurityError(code = result)
607
raise gnutls.Error(code = result)
609
def _retry_on_error(result, func, arguments):
610
"""A function to retry on some errors, suitable
611
for the 'errcheck' attribute on ctypes functions"""
613
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
614
return _error_code(result)
615
result = func(*arguments)
618
# Unless otherwise indicated, the function declarations below are
619
# all from the gnutls/gnutls.h C header file.
622
priority_set_direct = _library.gnutls_priority_set_direct
623
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
624
ctypes.POINTER(ctypes.c_char_p)]
625
priority_set_direct.restype = _error_code
627
init = _library.gnutls_init
628
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
629
init.restype = _error_code
631
set_default_priority = _library.gnutls_set_default_priority
632
set_default_priority.argtypes = [session_t]
633
set_default_priority.restype = _error_code
635
record_send = _library.gnutls_record_send
636
record_send.argtypes = [session_t, ctypes.c_void_p,
638
record_send.restype = ctypes.c_ssize_t
639
record_send.errcheck = _retry_on_error
641
certificate_allocate_credentials = (
642
_library.gnutls_certificate_allocate_credentials)
643
certificate_allocate_credentials.argtypes = [
644
ctypes.POINTER(certificate_credentials_t)]
645
certificate_allocate_credentials.restype = _error_code
647
certificate_free_credentials = (
648
_library.gnutls_certificate_free_credentials)
649
certificate_free_credentials.argtypes = [certificate_credentials_t]
650
certificate_free_credentials.restype = None
652
handshake_set_private_extensions = (
653
_library.gnutls_handshake_set_private_extensions)
654
handshake_set_private_extensions.argtypes = [session_t,
656
handshake_set_private_extensions.restype = None
658
credentials_set = _library.gnutls_credentials_set
659
credentials_set.argtypes = [session_t, credentials_type_t,
661
credentials_set.restype = _error_code
663
strerror = _library.gnutls_strerror
664
strerror.argtypes = [ctypes.c_int]
665
strerror.restype = ctypes.c_char_p
667
certificate_type_get = _library.gnutls_certificate_type_get
668
certificate_type_get.argtypes = [session_t]
669
certificate_type_get.restype = _error_code
671
certificate_get_peers = _library.gnutls_certificate_get_peers
672
certificate_get_peers.argtypes = [session_t,
673
ctypes.POINTER(ctypes.c_uint)]
674
certificate_get_peers.restype = ctypes.POINTER(datum_t)
676
global_set_log_level = _library.gnutls_global_set_log_level
677
global_set_log_level.argtypes = [ctypes.c_int]
678
global_set_log_level.restype = None
680
global_set_log_function = _library.gnutls_global_set_log_function
681
global_set_log_function.argtypes = [log_func]
682
global_set_log_function.restype = None
684
deinit = _library.gnutls_deinit
685
deinit.argtypes = [session_t]
686
deinit.restype = None
688
handshake = _library.gnutls_handshake
689
handshake.argtypes = [session_t]
690
handshake.restype = _error_code
691
handshake.errcheck = _retry_on_error
693
transport_set_ptr = _library.gnutls_transport_set_ptr
694
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
695
transport_set_ptr.restype = None
697
bye = _library.gnutls_bye
698
bye.argtypes = [session_t, close_request_t]
699
bye.restype = _error_code
700
bye.errcheck = _retry_on_error
702
check_version = _library.gnutls_check_version
703
check_version.argtypes = [ctypes.c_char_p]
704
check_version.restype = ctypes.c_char_p
706
# All the function declarations below are from gnutls/openpgp.h
708
openpgp_crt_init = _library.gnutls_openpgp_crt_init
709
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
710
openpgp_crt_init.restype = _error_code
712
openpgp_crt_import = _library.gnutls_openpgp_crt_import
713
openpgp_crt_import.argtypes = [openpgp_crt_t,
714
ctypes.POINTER(datum_t),
716
openpgp_crt_import.restype = _error_code
718
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
719
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
720
ctypes.POINTER(ctypes.c_uint)]
721
openpgp_crt_verify_self.restype = _error_code
723
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
724
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
725
openpgp_crt_deinit.restype = None
727
openpgp_crt_get_fingerprint = (
728
_library.gnutls_openpgp_crt_get_fingerprint)
729
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
733
openpgp_crt_get_fingerprint.restype = _error_code
735
# Remove non-public functions
736
del _error_code, _retry_on_error
737
# Create the global "gnutls" object, simulating a module
740
def call_pipe(connection, # : multiprocessing.Connection
741
func, *args, **kwargs):
742
"""This function is meant to be called by multiprocessing.Process
744
This function runs func(*args, **kwargs), and writes the resulting
745
return value on the provided multiprocessing.Connection.
747
connection.send(func(*args, **kwargs))
750
239
class Client(object):
751
240
"""A representation of a client host served by this server.
754
approved: bool(); 'None' if not yet approved/disapproved
755
approval_delay: datetime.timedelta(); Time to wait for approval
756
approval_duration: datetime.timedelta(); Duration of one approval
243
name: string; from the config file, used in log messages and
245
fingerprint: string (40 or 32 hexadecimal digits); used to
246
uniquely identify the client
247
secret: bytestring; sent verbatim (over TLS) to client
248
host: string; available for use by the checker command
249
created: datetime.datetime(); (UTC) object creation
250
last_enabled: datetime.datetime(); (UTC)
252
last_checked_ok: datetime.datetime(); (UTC) or None
253
timeout: datetime.timedelta(); How long from last_checked_ok
254
until this client is disabled
255
interval: datetime.timedelta(); How often to start a new checker
256
disable_hook: If set, called by disable() as disable_hook(self)
757
257
checker: subprocess.Popen(); a running checker process used
758
258
to see if the client lives.
759
259
'None' if no process is running.
760
checker_callback_tag: a GObject event source tag, or None
761
checker_command: string; External command which is run to check
762
if client lives. %() expansions are done at
260
checker_initiator_tag: a gobject event source tag, or None
261
disable_initiator_tag: - '' -
262
checker_callback_tag: - '' -
263
checker_command: string; External command which is run to check if
264
client lives. %() expansions are done at
763
265
runtime with vars(self) as dict, so that for
764
266
instance %(name)s can be used in the command.
765
checker_initiator_tag: a GObject event source tag, or None
766
created: datetime.datetime(); (UTC) object creation
767
client_structure: Object describing what attributes a client has
768
and is used for storing the client at exit
769
267
current_checker_command: string; current running checker_command
770
disable_initiator_tag: a GObject event source tag, or None
772
fingerprint: string (40 or 32 hexadecimal digits); used to
773
uniquely identify the client
774
host: string; available for use by the checker command
775
interval: datetime.timedelta(); How often to start a new checker
776
last_approval_request: datetime.datetime(); (UTC) or None
777
last_checked_ok: datetime.datetime(); (UTC) or None
778
last_checker_status: integer between 0 and 255 reflecting exit
779
status of last checker. -1 reflects crashed
780
checker, -2 means no checker completed yet.
781
last_checker_signal: The signal which killed the last checker, if
782
last_checker_status is -1
783
last_enabled: datetime.datetime(); (UTC) or None
784
name: string; from the config file, used in log messages and
786
secret: bytestring; sent verbatim (over TLS) to client
787
timeout: datetime.timedelta(); How long from last_checked_ok
788
until this client is disabled
789
extended_timeout: extra long timeout when secret has been sent
790
runtime_expansions: Allowed attributes for runtime expansion.
791
expires: datetime.datetime(); time (UTC) when a client will be
793
server_settings: The server_settings dict from main()
268
approval_delay: datetime.timedelta(); Time to wait for approval
269
_approved: bool(); 'None' if not yet approved/disapproved
270
approval_duration: datetime.timedelta(); Duration of one approval
796
runtime_expansions = ("approval_delay", "approval_duration",
797
"created", "enabled", "expires",
798
"fingerprint", "host", "interval",
799
"last_approval_request", "last_checked_ok",
800
"last_enabled", "name", "timeout")
803
"extended_timeout": "PT15M",
805
"checker": "fping -q -- %%(host)s",
807
"approval_delay": "PT0S",
808
"approval_duration": "PT1S",
809
"approved_by_default": "True",
814
def config_parser(config):
815
"""Construct a new dict of client settings of this form:
816
{ client_name: {setting_name: value, ...}, ...}
817
with exceptions for any special settings as defined above.
818
NOTE: Must be a pure function. Must return the same result
819
value given the same arguments.
822
for client_name in config.sections():
823
section = dict(config.items(client_name))
824
client = settings[client_name] = {}
826
client["host"] = section["host"]
827
# Reformat values from string types to Python types
828
client["approved_by_default"] = config.getboolean(
829
client_name, "approved_by_default")
830
client["enabled"] = config.getboolean(client_name,
833
# Uppercase and remove spaces from fingerprint for later
834
# comparison purposes with return value from the
835
# fingerprint() function
836
client["fingerprint"] = (section["fingerprint"].upper()
838
if "secret" in section:
839
client["secret"] = codecs.decode(section["secret"]
842
elif "secfile" in section:
843
with open(os.path.expanduser(os.path.expandvars
844
(section["secfile"])),
846
client["secret"] = secfile.read()
848
raise TypeError("No secret or secfile for section {}"
850
client["timeout"] = string_to_delta(section["timeout"])
851
client["extended_timeout"] = string_to_delta(
852
section["extended_timeout"])
853
client["interval"] = string_to_delta(section["interval"])
854
client["approval_delay"] = string_to_delta(
855
section["approval_delay"])
856
client["approval_duration"] = string_to_delta(
857
section["approval_duration"])
858
client["checker_command"] = section["checker"]
859
client["last_approval_request"] = None
860
client["last_checked_ok"] = None
861
client["last_checker_status"] = -2
865
def __init__(self, settings, name = None, server_settings=None):
274
def _timedelta_to_milliseconds(td):
275
"Convert a datetime.timedelta() to milliseconds"
276
return ((td.days * 24 * 60 * 60 * 1000)
277
+ (td.seconds * 1000)
278
+ (td.microseconds // 1000))
280
def timeout_milliseconds(self):
281
"Return the 'timeout' attribute in milliseconds"
282
return self._timedelta_to_milliseconds(self.timeout)
284
def interval_milliseconds(self):
285
"Return the 'interval' attribute in milliseconds"
286
return self._timedelta_to_milliseconds(self.interval)
288
def approval_delay_milliseconds(self):
289
return self._timedelta_to_milliseconds(self.approval_delay)
291
def __init__(self, name = None, disable_hook=None, config=None):
292
"""Note: the 'checker' key in 'config' sets the
293
'checker_command' attribute and *not* the 'checker'
867
if server_settings is None:
869
self.server_settings = server_settings
870
# adding all client settings
871
for setting, value in settings.items():
872
setattr(self, setting, value)
875
if not hasattr(self, "last_enabled"):
876
self.last_enabled = datetime.datetime.utcnow()
877
if not hasattr(self, "expires"):
878
self.expires = (datetime.datetime.utcnow()
298
logger.debug(u"Creating client %r", self.name)
299
# Uppercase and remove spaces from fingerprint for later
300
# comparison purposes with return value from the fingerprint()
302
self.fingerprint = (config[u"fingerprint"].upper()
304
logger.debug(u" Fingerprint: %s", self.fingerprint)
305
if u"secret" in config:
306
self.secret = config[u"secret"].decode(u"base64")
307
elif u"secfile" in config:
308
with open(os.path.expanduser(os.path.expandvars
309
(config[u"secfile"])),
311
self.secret = secfile.read()
881
self.last_enabled = None
884
logger.debug("Creating client %r", self.name)
885
logger.debug(" Fingerprint: %s", self.fingerprint)
886
self.created = settings.get("created",
887
datetime.datetime.utcnow())
889
# attributes specific for this server instance
313
raise TypeError(u"No secret or secfile for client %s"
315
self.host = config.get(u"host", u"")
316
self.created = datetime.datetime.utcnow()
318
self.last_enabled = None
319
self.last_checked_ok = None
320
self.timeout = string_to_delta(config[u"timeout"])
321
self.interval = string_to_delta(config[u"interval"])
322
self.disable_hook = disable_hook
890
323
self.checker = None
891
324
self.checker_initiator_tag = None
892
325
self.disable_initiator_tag = None
893
326
self.checker_callback_tag = None
327
self.checker_command = config[u"checker"]
894
328
self.current_checker_command = None
329
self.last_connect = None
330
self._approved = None
331
self.approved_by_default = config.get(u"approved_by_default",
896
333
self.approvals_pending = 0
897
self.changedstate = multiprocessing_manager.Condition(
898
multiprocessing_manager.Lock())
899
self.client_structure = [attr
900
for attr in self.__dict__.keys()
901
if not attr.startswith("_")]
902
self.client_structure.append("client_structure")
904
for name, t in inspect.getmembers(
905
type(self), lambda obj: isinstance(obj, property)):
906
if not name.startswith("_"):
907
self.client_structure.append(name)
334
self.approval_delay = string_to_delta(
335
config[u"approval_delay"])
336
self.approval_duration = string_to_delta(
337
config[u"approval_duration"])
338
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
909
# Send notice to process children that client state has changed
910
340
def send_changedstate(self):
911
with self.changedstate:
912
self.changedstate.notify_all()
341
self.changedstate.acquire()
342
self.changedstate.notify_all()
343
self.changedstate.release()
914
345
def enable(self):
915
346
"""Start this client's checker and timeout hooks"""
916
if getattr(self, "enabled", False):
347
if getattr(self, u"enabled", False):
917
348
# Already enabled
919
self.expires = datetime.datetime.utcnow() + self.timeout
350
self.send_changedstate()
921
351
self.last_enabled = datetime.datetime.utcnow()
923
self.send_changedstate()
352
# Schedule a new checker to be started an 'interval' from now,
353
# and every interval from then on.
354
self.checker_initiator_tag = (gobject.timeout_add
355
(self.interval_milliseconds(),
357
# Schedule a disable() when 'timeout' has passed
358
self.disable_initiator_tag = (gobject.timeout_add
359
(self.timeout_milliseconds(),
362
# Also start a new checker *right now*.
925
365
def disable(self, quiet=True):
926
366
"""Disable this client."""
927
367
if not getattr(self, "enabled", False):
930
logger.info("Disabling client %s", self.name)
931
if getattr(self, "disable_initiator_tag", None) is not None:
932
GObject.source_remove(self.disable_initiator_tag)
370
self.send_changedstate()
372
logger.info(u"Disabling client %s", self.name)
373
if getattr(self, u"disable_initiator_tag", False):
374
gobject.source_remove(self.disable_initiator_tag)
933
375
self.disable_initiator_tag = None
935
if getattr(self, "checker_initiator_tag", None) is not None:
936
GObject.source_remove(self.checker_initiator_tag)
376
if getattr(self, u"checker_initiator_tag", False):
377
gobject.source_remove(self.checker_initiator_tag)
937
378
self.checker_initiator_tag = None
938
379
self.stop_checker()
380
if self.disable_hook:
381
self.disable_hook(self)
939
382
self.enabled = False
941
self.send_changedstate()
942
# Do not run this again if called by a GObject.timeout_add
383
# Do not run this again if called by a gobject.timeout_add
945
386
def __del__(self):
387
self.disable_hook = None
948
def init_checker(self):
949
# Schedule a new checker to be started an 'interval' from now,
950
# and every interval from then on.
951
if self.checker_initiator_tag is not None:
952
GObject.source_remove(self.checker_initiator_tag)
953
self.checker_initiator_tag = GObject.timeout_add(
954
int(self.interval.total_seconds() * 1000),
956
# Schedule a disable() when 'timeout' has passed
957
if self.disable_initiator_tag is not None:
958
GObject.source_remove(self.disable_initiator_tag)
959
self.disable_initiator_tag = GObject.timeout_add(
960
int(self.timeout.total_seconds() * 1000), self.disable)
961
# Also start a new checker *right now*.
964
def checker_callback(self, source, condition, connection,
390
def checker_callback(self, pid, condition, command):
966
391
"""The checker has completed, so take appropriate actions."""
967
392
self.checker_callback_tag = None
968
393
self.checker = None
969
# Read return code from connection (see call_pipe)
970
returncode = connection.recv()
974
self.last_checker_status = returncode
975
self.last_checker_signal = None
976
if self.last_checker_status == 0:
977
logger.info("Checker for %(name)s succeeded",
394
if os.WIFEXITED(condition):
395
exitstatus = os.WEXITSTATUS(condition)
397
logger.info(u"Checker for %(name)s succeeded",
979
399
self.checked_ok()
981
logger.info("Checker for %(name)s failed", vars(self))
401
logger.info(u"Checker for %(name)s failed",
983
self.last_checker_status = -1
984
self.last_checker_signal = -returncode
985
logger.warning("Checker for %(name)s crashed?",
404
logger.warning(u"Checker for %(name)s crashed?",
989
407
def checked_ok(self):
990
"""Assert that the client has been seen, alive and well."""
408
"""Bump up the timeout for this client.
410
This should only be called when the client has been seen,
991
413
self.last_checked_ok = datetime.datetime.utcnow()
992
self.last_checker_status = 0
993
self.last_checker_signal = None
996
def bump_timeout(self, timeout=None):
997
"""Bump up the timeout for this client."""
999
timeout = self.timeout
1000
if self.disable_initiator_tag is not None:
1001
GObject.source_remove(self.disable_initiator_tag)
1002
self.disable_initiator_tag = None
1003
if getattr(self, "enabled", False):
1004
self.disable_initiator_tag = GObject.timeout_add(
1005
int(timeout.total_seconds() * 1000), self.disable)
1006
self.expires = datetime.datetime.utcnow() + timeout
1008
def need_approval(self):
1009
self.last_approval_request = datetime.datetime.utcnow()
414
gobject.source_remove(self.disable_initiator_tag)
415
self.disable_initiator_tag = (gobject.timeout_add
416
(self.timeout_milliseconds(),
1011
419
def start_checker(self):
1012
420
"""Start a new checker subprocess if one is not running.
1178
class DBusObjectWithAnnotations(dbus.service.Object):
1179
"""A D-Bus object with annotations.
1181
Classes inheriting from this can use the dbus_annotations
1182
decorator to add annotations to methods or signals.
1186
def _is_dbus_thing(thing):
1187
"""Returns a function testing if an attribute is a D-Bus thing
1189
If called like _is_dbus_thing("method") it returns a function
1190
suitable for use as predicate to inspect.getmembers().
1192
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
1195
def _get_all_dbus_things(self, thing):
1196
"""Returns a generator of (name, attribute) pairs
1198
return ((getattr(athing.__get__(self), "_dbus_name", name),
1199
athing.__get__(self))
1200
for cls in self.__class__.__mro__
1202
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1204
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1205
out_signature = "s",
1206
path_keyword = 'object_path',
1207
connection_keyword = 'connection')
1208
def Introspect(self, object_path, connection):
1209
"""Overloading of standard D-Bus method.
1211
Inserts annotation tags on methods and signals.
1213
xmlstring = dbus.service.Object.Introspect(self, object_path,
1216
document = xml.dom.minidom.parseString(xmlstring)
1218
for if_tag in document.getElementsByTagName("interface"):
1219
# Add annotation tags
1220
for typ in ("method", "signal"):
1221
for tag in if_tag.getElementsByTagName(typ):
1223
for name, prop in (self.
1224
_get_all_dbus_things(typ)):
1225
if (name == tag.getAttribute("name")
1226
and prop._dbus_interface
1227
== if_tag.getAttribute("name")):
1228
annots.update(getattr(
1229
prop, "_dbus_annotations", {}))
1230
for name, value in annots.items():
1231
ann_tag = document.createElement(
1233
ann_tag.setAttribute("name", name)
1234
ann_tag.setAttribute("value", value)
1235
tag.appendChild(ann_tag)
1236
# Add interface annotation tags
1237
for annotation, value in dict(
1238
itertools.chain.from_iterable(
1239
annotations().items()
1240
for name, annotations
1241
in self._get_all_dbus_things("interface")
1242
if name == if_tag.getAttribute("name")
1244
ann_tag = document.createElement("annotation")
1245
ann_tag.setAttribute("name", annotation)
1246
ann_tag.setAttribute("value", value)
1247
if_tag.appendChild(ann_tag)
1248
# Fix argument name for the Introspect method itself
1249
if (if_tag.getAttribute("name")
1250
== dbus.INTROSPECTABLE_IFACE):
1251
for cn in if_tag.getElementsByTagName("method"):
1252
if cn.getAttribute("name") == "Introspect":
1253
for arg in cn.getElementsByTagName("arg"):
1254
if (arg.getAttribute("direction")
1256
arg.setAttribute("name",
1258
xmlstring = document.toxml("utf-8")
1260
except (AttributeError, xml.dom.DOMException,
1261
xml.parsers.expat.ExpatError) as error:
1262
logger.error("Failed to override Introspection method",
1267
class DBusObjectWithProperties(DBusObjectWithAnnotations):
559
class DBusObjectWithProperties(dbus.service.Object):
1268
560
"""A D-Bus object with properties.
1270
562
Classes inheriting from this can use the dbus_service_property
1271
563
decorator to expose methods as D-Bus properties. It exposes the
1272
564
standard Get(), Set(), and GetAll() methods on the D-Bus.
568
def _is_dbus_property(obj):
569
return getattr(obj, u"_dbus_is_property", False)
571
def _get_all_dbus_properties(self):
572
"""Returns a generator of (name, attribute) pairs
574
return ((prop._dbus_name, prop)
576
inspect.getmembers(self, self._is_dbus_property))
1275
578
def _get_dbus_property(self, interface_name, property_name):
1276
579
"""Returns a bound method if one exists which is a D-Bus
1277
580
property with the specified name and interface.
1279
for cls in self.__class__.__mro__:
1280
for name, value in inspect.getmembers(
1281
cls, self._is_dbus_thing("property")):
1282
if (value._dbus_name == property_name
1283
and value._dbus_interface == interface_name):
1284
return value.__get__(self)
582
for name in (property_name,
583
property_name + u"_dbus_property"):
584
prop = getattr(self, name, None)
586
or not self._is_dbus_property(prop)
587
or prop._dbus_name != property_name
588
or (interface_name and prop._dbus_interface
589
and interface_name != prop._dbus_interface)):
1286
592
# No such property
1287
raise DBusPropertyNotFound("{}:{}.{}".format(
1288
self.dbus_object_path, interface_name, property_name))
1291
def _get_all_interface_names(cls):
1292
"""Get a sequence of all interfaces supported by an object"""
1293
return (name for name in set(getattr(getattr(x, attr),
1294
"_dbus_interface", None)
1295
for x in (inspect.getmro(cls))
1297
if name is not None)
1299
@dbus.service.method(dbus.PROPERTIES_IFACE,
593
raise DBusPropertyNotFound(self.dbus_object_path + u":"
594
+ interface_name + u"."
597
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
1302
599
def Get(self, interface_name, property_name):
1303
600
"""Standard D-Bus property Get() method, see D-Bus standard.
1305
602
prop = self._get_dbus_property(interface_name, property_name)
1306
if prop._dbus_access == "write":
603
if prop._dbus_access == u"write":
1307
604
raise DBusPropertyAccessException(property_name)
1309
if not hasattr(value, "variant_level"):
606
if not hasattr(value, u"variant_level"):
1311
608
return type(value)(value, variant_level=value.variant_level+1)
1313
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
1314
611
def Set(self, interface_name, property_name, value):
1315
612
"""Standard D-Bus property Set() method, see D-Bus standard.
1317
614
prop = self._get_dbus_property(interface_name, property_name)
1318
if prop._dbus_access == "read":
615
if prop._dbus_access == u"read":
1319
616
raise DBusPropertyAccessException(property_name)
1320
if prop._dbus_get_args_options["byte_arrays"]:
617
if prop._dbus_get_args_options[u"byte_arrays"]:
1321
618
# The byte_arrays option is not supported yet on
1322
619
# signatures other than "ay".
1323
if prop._dbus_signature != "ay":
1324
raise ValueError("Byte arrays not supported for non-"
1325
"'ay' signature {!r}"
1326
.format(prop._dbus_signature))
1327
value = dbus.ByteArray(b''.join(chr(byte)
620
if prop._dbus_signature != u"ay":
622
value = dbus.ByteArray(''.join(unichr(byte)
1331
@dbus.service.method(dbus.PROPERTIES_IFACE,
1333
out_signature="a{sv}")
626
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
627
out_signature=u"a{sv}")
1334
628
def GetAll(self, interface_name):
1335
629
"""Standard D-Bus property GetAll() method, see D-Bus
1338
632
Note: Will not include properties with access="write".
1341
for name, prop in self._get_all_dbus_things("property"):
635
for name, prop in self._get_all_dbus_properties():
1342
636
if (interface_name
1343
637
and interface_name != prop._dbus_interface):
1344
638
# Interface non-empty but did not match
1346
640
# Ignore write-only properties
1347
if prop._dbus_access == "write":
641
if prop._dbus_access == u"write":
1350
if not hasattr(value, "variant_level"):
1351
properties[name] = value
644
if not hasattr(value, u"variant_level"):
1353
properties[name] = type(value)(
1354
value, variant_level = value.variant_level + 1)
1355
return dbus.Dictionary(properties, signature="sv")
1357
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1358
def PropertiesChanged(self, interface_name, changed_properties,
1359
invalidated_properties):
1360
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
647
all[name] = type(value)(value, variant_level=
648
value.variant_level+1)
649
return dbus.Dictionary(all, signature=u"sv")
1365
651
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1367
653
path_keyword='object_path',
1368
654
connection_keyword='connection')
1369
655
def Introspect(self, object_path, connection):
1370
"""Overloading of standard D-Bus method.
1372
Inserts property tags and interface annotation tags.
656
"""Standard D-Bus method, overloaded to insert property tags.
1374
xmlstring = DBusObjectWithAnnotations.Introspect(self,
658
xmlstring = dbus.service.Object.Introspect(self, object_path,
1378
661
document = xml.dom.minidom.parseString(xmlstring)
1380
662
def make_tag(document, name, prop):
1381
e = document.createElement("property")
1382
e.setAttribute("name", name)
1383
e.setAttribute("type", prop._dbus_signature)
1384
e.setAttribute("access", prop._dbus_access)
663
e = document.createElement(u"property")
664
e.setAttribute(u"name", name)
665
e.setAttribute(u"type", prop._dbus_signature)
666
e.setAttribute(u"access", prop._dbus_access)
1387
for if_tag in document.getElementsByTagName("interface"):
668
for if_tag in document.getElementsByTagName(u"interface"):
1389
669
for tag in (make_tag(document, name, prop)
1391
in self._get_all_dbus_things("property")
671
in self._get_all_dbus_properties()
1392
672
if prop._dbus_interface
1393
== if_tag.getAttribute("name")):
673
== if_tag.getAttribute(u"name")):
1394
674
if_tag.appendChild(tag)
1395
# Add annotation tags for properties
1396
for tag in if_tag.getElementsByTagName("property"):
1398
for name, prop in self._get_all_dbus_things(
1400
if (name == tag.getAttribute("name")
1401
and prop._dbus_interface
1402
== if_tag.getAttribute("name")):
1403
annots.update(getattr(
1404
prop, "_dbus_annotations", {}))
1405
for name, value in annots.items():
1406
ann_tag = document.createElement(
1408
ann_tag.setAttribute("name", name)
1409
ann_tag.setAttribute("value", value)
1410
tag.appendChild(ann_tag)
1411
675
# Add the names to the return values for the
1412
676
# "org.freedesktop.DBus.Properties" methods
1413
if (if_tag.getAttribute("name")
1414
== "org.freedesktop.DBus.Properties"):
1415
for cn in if_tag.getElementsByTagName("method"):
1416
if cn.getAttribute("name") == "Get":
1417
for arg in cn.getElementsByTagName("arg"):
1418
if (arg.getAttribute("direction")
1420
arg.setAttribute("name", "value")
1421
elif cn.getAttribute("name") == "GetAll":
1422
for arg in cn.getElementsByTagName("arg"):
1423
if (arg.getAttribute("direction")
1425
arg.setAttribute("name", "props")
1426
xmlstring = document.toxml("utf-8")
1428
except (AttributeError, xml.dom.DOMException,
1429
xml.parsers.expat.ExpatError) as error:
1430
logger.error("Failed to override Introspection method",
1435
dbus.OBJECT_MANAGER_IFACE
1436
except AttributeError:
1437
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1439
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1440
"""A D-Bus object with an ObjectManager.
1442
Classes inheriting from this exposes the standard
1443
GetManagedObjects call and the InterfacesAdded and
1444
InterfacesRemoved signals on the standard
1445
"org.freedesktop.DBus.ObjectManager" interface.
1447
Note: No signals are sent automatically; they must be sent
1450
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1451
out_signature = "a{oa{sa{sv}}}")
1452
def GetManagedObjects(self):
1453
"""This function must be overridden"""
1454
raise NotImplementedError()
1456
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1457
signature = "oa{sa{sv}}")
1458
def InterfacesAdded(self, object_path, interfaces_and_properties):
1461
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1462
def InterfacesRemoved(self, object_path, interfaces):
1465
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1466
out_signature = "s",
1467
path_keyword = 'object_path',
1468
connection_keyword = 'connection')
1469
def Introspect(self, object_path, connection):
1470
"""Overloading of standard D-Bus method.
1472
Override return argument name of GetManagedObjects to be
1473
"objpath_interfaces_and_properties"
1475
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1479
document = xml.dom.minidom.parseString(xmlstring)
1481
for if_tag in document.getElementsByTagName("interface"):
1482
# Fix argument name for the GetManagedObjects method
1483
if (if_tag.getAttribute("name")
1484
== dbus.OBJECT_MANAGER_IFACE):
1485
for cn in if_tag.getElementsByTagName("method"):
1486
if (cn.getAttribute("name")
1487
== "GetManagedObjects"):
1488
for arg in cn.getElementsByTagName("arg"):
1489
if (arg.getAttribute("direction")
1493
"objpath_interfaces"
1495
xmlstring = document.toxml("utf-8")
1497
except (AttributeError, xml.dom.DOMException,
1498
xml.parsers.expat.ExpatError) as error:
1499
logger.error("Failed to override Introspection method",
1503
def datetime_to_dbus(dt, variant_level=0):
1504
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1506
return dbus.String("", variant_level = variant_level)
1507
return dbus.String(dt.isoformat(), variant_level=variant_level)
1510
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1511
"""A class decorator; applied to a subclass of
1512
dbus.service.Object, it will add alternate D-Bus attributes with
1513
interface names according to the "alt_interface_names" mapping.
1516
@alternate_dbus_interfaces({"org.example.Interface":
1517
"net.example.AlternateInterface"})
1518
class SampleDBusObject(dbus.service.Object):
1519
@dbus.service.method("org.example.Interface")
1520
def SampleDBusMethod():
1523
The above "SampleDBusMethod" on "SampleDBusObject" will be
1524
reachable via two interfaces: "org.example.Interface" and
1525
"net.example.AlternateInterface", the latter of which will have
1526
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1527
"true", unless "deprecate" is passed with a False value.
1529
This works for methods and signals, and also for D-Bus properties
1530
(from DBusObjectWithProperties) and interfaces (from the
1531
dbus_interface_annotations decorator).
1535
for orig_interface_name, alt_interface_name in (
1536
alt_interface_names.items()):
1538
interface_names = set()
1539
# Go though all attributes of the class
1540
for attrname, attribute in inspect.getmembers(cls):
1541
# Ignore non-D-Bus attributes, and D-Bus attributes
1542
# with the wrong interface name
1543
if (not hasattr(attribute, "_dbus_interface")
1544
or not attribute._dbus_interface.startswith(
1545
orig_interface_name)):
1547
# Create an alternate D-Bus interface name based on
1549
alt_interface = attribute._dbus_interface.replace(
1550
orig_interface_name, alt_interface_name)
1551
interface_names.add(alt_interface)
1552
# Is this a D-Bus signal?
1553
if getattr(attribute, "_dbus_is_signal", False):
1554
# Extract the original non-method undecorated
1555
# function by black magic
1556
if sys.version_info.major == 2:
1557
nonmethod_func = (dict(
1558
zip(attribute.func_code.co_freevars,
1559
attribute.__closure__))
1560
["func"].cell_contents)
1562
nonmethod_func = (dict(
1563
zip(attribute.__code__.co_freevars,
1564
attribute.__closure__))
1565
["func"].cell_contents)
1566
# Create a new, but exactly alike, function
1567
# object, and decorate it to be a new D-Bus signal
1568
# with the alternate D-Bus interface name
1569
new_function = copy_function(nonmethod_func)
1570
new_function = (dbus.service.signal(
1572
attribute._dbus_signature)(new_function))
1573
# Copy annotations, if any
1575
new_function._dbus_annotations = dict(
1576
attribute._dbus_annotations)
1577
except AttributeError:
1579
# Define a creator of a function to call both the
1580
# original and alternate functions, so both the
1581
# original and alternate signals gets sent when
1582
# the function is called
1583
def fixscope(func1, func2):
1584
"""This function is a scope container to pass
1585
func1 and func2 to the "call_both" function
1586
outside of its arguments"""
1588
@functools.wraps(func2)
1589
def call_both(*args, **kwargs):
1590
"""This function will emit two D-Bus
1591
signals by calling func1 and func2"""
1592
func1(*args, **kwargs)
1593
func2(*args, **kwargs)
1594
# Make wrapper function look like a D-Bus signal
1595
for name, attr in inspect.getmembers(func2):
1596
if name.startswith("_dbus_"):
1597
setattr(call_both, name, attr)
1600
# Create the "call_both" function and add it to
1602
attr[attrname] = fixscope(attribute, new_function)
1603
# Is this a D-Bus method?
1604
elif getattr(attribute, "_dbus_is_method", False):
1605
# Create a new, but exactly alike, function
1606
# object. Decorate it to be a new D-Bus method
1607
# with the alternate D-Bus interface name. Add it
1610
dbus.service.method(
1612
attribute._dbus_in_signature,
1613
attribute._dbus_out_signature)
1614
(copy_function(attribute)))
1615
# Copy annotations, if any
1617
attr[attrname]._dbus_annotations = dict(
1618
attribute._dbus_annotations)
1619
except AttributeError:
1621
# Is this a D-Bus property?
1622
elif getattr(attribute, "_dbus_is_property", False):
1623
# Create a new, but exactly alike, function
1624
# object, and decorate it to be a new D-Bus
1625
# property with the alternate D-Bus interface
1626
# name. Add it to the class.
1627
attr[attrname] = (dbus_service_property(
1628
alt_interface, attribute._dbus_signature,
1629
attribute._dbus_access,
1630
attribute._dbus_get_args_options
1632
(copy_function(attribute)))
1633
# Copy annotations, if any
1635
attr[attrname]._dbus_annotations = dict(
1636
attribute._dbus_annotations)
1637
except AttributeError:
1639
# Is this a D-Bus interface?
1640
elif getattr(attribute, "_dbus_is_interface", False):
1641
# Create a new, but exactly alike, function
1642
# object. Decorate it to be a new D-Bus interface
1643
# with the alternate D-Bus interface name. Add it
1646
dbus_interface_annotations(alt_interface)
1647
(copy_function(attribute)))
1649
# Deprecate all alternate interfaces
1650
iname="_AlternateDBusNames_interface_annotation{}"
1651
for interface_name in interface_names:
1653
@dbus_interface_annotations(interface_name)
1655
return { "org.freedesktop.DBus.Deprecated":
1657
# Find an unused name
1658
for aname in (iname.format(i)
1659
for i in itertools.count()):
1660
if aname not in attr:
1664
# Replace the class with a new subclass of it with
1665
# methods, signals, etc. as created above.
1666
if sys.version_info.major == 2:
1667
cls = type(b"{}Alternate".format(cls.__name__),
1670
cls = type("{}Alternate".format(cls.__name__),
1677
@alternate_dbus_interfaces({"se.recompile.Mandos":
1678
"se.bsnet.fukt.Mandos"})
677
if (if_tag.getAttribute(u"name")
678
== u"org.freedesktop.DBus.Properties"):
679
for cn in if_tag.getElementsByTagName(u"method"):
680
if cn.getAttribute(u"name") == u"Get":
681
for arg in cn.getElementsByTagName(u"arg"):
682
if (arg.getAttribute(u"direction")
684
arg.setAttribute(u"name", u"value")
685
elif cn.getAttribute(u"name") == u"GetAll":
686
for arg in cn.getElementsByTagName(u"arg"):
687
if (arg.getAttribute(u"direction")
689
arg.setAttribute(u"name", u"props")
690
xmlstring = document.toxml(u"utf-8")
692
except (AttributeError, xml.dom.DOMException,
693
xml.parsers.expat.ExpatError), error:
694
logger.error(u"Failed to override Introspection method",
1679
699
class ClientDBus(Client, DBusObjectWithProperties):
1680
700
"""A Client class using D-Bus
1683
703
dbus_object_path: dbus.ObjectPath
1684
704
bus: dbus.SystemBus()
1687
runtime_expansions = (Client.runtime_expansions
1688
+ ("dbus_object_path", ))
1690
_interface = "se.recompile.Mandos.Client"
1692
706
# dbus.service.Object doesn't use super(), so we can't either.
1694
708
def __init__(self, bus = None, *args, **kwargs):
709
self._approvals_pending = 0
1696
711
Client.__init__(self, *args, **kwargs)
1697
712
# Only now, when this client is initialized, can it show up on
1699
client_object_name = str(self.name).translate(
1700
{ord("."): ord("_"),
1701
ord("-"): ord("_")})
1702
self.dbus_object_path = dbus.ObjectPath(
1703
"/clients/" + client_object_name)
714
self.dbus_object_path = (dbus.ObjectPath
716
+ self.name.replace(u".", u"_")))
1704
717
DBusObjectWithProperties.__init__(self, self.bus,
1705
718
self.dbus_object_path)
1707
def notifychangeproperty(transform_func, dbus_name,
1708
type_func=lambda x: x,
1710
invalidate_only=False,
1711
_interface=_interface):
1712
""" Modify a variable so that it's a property which announces
1713
its changes to DBus.
1715
transform_fun: Function that takes a value and a variant_level
1716
and transforms it to a D-Bus type.
1717
dbus_name: D-Bus name of the variable
1718
type_func: Function that transform the value before sending it
1719
to the D-Bus. Default: no transform
1720
variant_level: D-Bus variant level. Default: 1
1722
attrname = "_{}".format(dbus_name)
1724
def setter(self, value):
1725
if hasattr(self, "dbus_object_path"):
1726
if (not hasattr(self, attrname) or
1727
type_func(getattr(self, attrname, None))
1728
!= type_func(value)):
1730
self.PropertiesChanged(
1731
_interface, dbus.Dictionary(),
1732
dbus.Array((dbus_name, )))
1734
dbus_value = transform_func(
1736
variant_level = variant_level)
1737
self.PropertyChanged(dbus.String(dbus_name),
1739
self.PropertiesChanged(
1741
dbus.Dictionary({ dbus.String(dbus_name):
1744
setattr(self, attrname, value)
1746
return property(lambda self: getattr(self, attrname), setter)
1748
expires = notifychangeproperty(datetime_to_dbus, "Expires")
1749
approvals_pending = notifychangeproperty(dbus.Boolean,
1752
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1753
last_enabled = notifychangeproperty(datetime_to_dbus,
1755
checker = notifychangeproperty(
1756
dbus.Boolean, "CheckerRunning",
1757
type_func = lambda checker: checker is not None)
1758
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1760
last_checker_status = notifychangeproperty(dbus.Int16,
1761
"LastCheckerStatus")
1762
last_approval_request = notifychangeproperty(
1763
datetime_to_dbus, "LastApprovalRequest")
1764
approved_by_default = notifychangeproperty(dbus.Boolean,
1765
"ApprovedByDefault")
1766
approval_delay = notifychangeproperty(
1767
dbus.UInt64, "ApprovalDelay",
1768
type_func = lambda td: td.total_seconds() * 1000)
1769
approval_duration = notifychangeproperty(
1770
dbus.UInt64, "ApprovalDuration",
1771
type_func = lambda td: td.total_seconds() * 1000)
1772
host = notifychangeproperty(dbus.String, "Host")
1773
timeout = notifychangeproperty(
1774
dbus.UInt64, "Timeout",
1775
type_func = lambda td: td.total_seconds() * 1000)
1776
extended_timeout = notifychangeproperty(
1777
dbus.UInt64, "ExtendedTimeout",
1778
type_func = lambda td: td.total_seconds() * 1000)
1779
interval = notifychangeproperty(
1780
dbus.UInt64, "Interval",
1781
type_func = lambda td: td.total_seconds() * 1000)
1782
checker_command = notifychangeproperty(dbus.String, "Checker")
1783
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1784
invalidate_only=True)
1786
del notifychangeproperty
720
def _get_approvals_pending(self):
721
return self._approvals_pending
722
def _set_approvals_pending(self, value):
723
old_value = self._approvals_pending
724
self._approvals_pending = value
726
if (hasattr(self, "dbus_object_path")
727
and bval is not bool(old_value)):
728
dbus_bool = dbus.Boolean(bval, variant_level=1)
729
self.PropertyChanged(dbus.String(u"ApprovalPending"),
732
approvals_pending = property(_get_approvals_pending,
733
_set_approvals_pending)
734
del _get_approvals_pending, _set_approvals_pending
737
def _datetime_to_dbus(dt, variant_level=0):
738
"""Convert a UTC datetime.datetime() to a D-Bus type."""
739
return dbus.String(dt.isoformat(),
740
variant_level=variant_level)
743
oldstate = getattr(self, u"enabled", False)
744
r = Client.enable(self)
745
if oldstate != self.enabled:
747
self.PropertyChanged(dbus.String(u"Enabled"),
748
dbus.Boolean(True, variant_level=1))
749
self.PropertyChanged(
750
dbus.String(u"LastEnabled"),
751
self._datetime_to_dbus(self.last_enabled,
755
def disable(self, quiet = False):
756
oldstate = getattr(self, u"enabled", False)
757
r = Client.disable(self, quiet=quiet)
758
if not quiet and oldstate != self.enabled:
760
self.PropertyChanged(dbus.String(u"Enabled"),
761
dbus.Boolean(False, variant_level=1))
1788
764
def __del__(self, *args, **kwargs):
1790
766
self.remove_from_connection()
1791
767
except LookupError:
1793
if hasattr(DBusObjectWithProperties, "__del__"):
769
if hasattr(DBusObjectWithProperties, u"__del__"):
1794
770
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1795
771
Client.__del__(self, *args, **kwargs)
1797
def checker_callback(self, source, condition,
1798
connection, command, *args, **kwargs):
1799
ret = Client.checker_callback(self, source, condition,
1800
connection, command, *args,
1802
exitstatus = self.last_checker_status
773
def checker_callback(self, pid, condition, command,
775
self.checker_callback_tag = None
778
self.PropertyChanged(dbus.String(u"CheckerRunning"),
779
dbus.Boolean(False, variant_level=1))
780
if os.WIFEXITED(condition):
781
exitstatus = os.WEXITSTATUS(condition)
1804
782
# Emit D-Bus signal
1805
783
self.CheckerCompleted(dbus.Int16(exitstatus),
1806
# This is specific to GNU libC
1807
dbus.Int64(exitstatus << 8),
784
dbus.Int64(condition),
1808
785
dbus.String(command))
1810
787
# Emit D-Bus signal
1811
788
self.CheckerCompleted(dbus.Int16(-1),
1813
# This is specific to GNU libC
1815
| self.last_checker_signal),
789
dbus.Int64(condition),
1816
790
dbus.String(command))
792
return Client.checker_callback(self, pid, condition, command,
795
def checked_ok(self, *args, **kwargs):
796
r = Client.checked_ok(self, *args, **kwargs)
798
self.PropertyChanged(
799
dbus.String(u"LastCheckedOK"),
800
(self._datetime_to_dbus(self.last_checked_ok,
1819
804
def start_checker(self, *args, **kwargs):
1820
old_checker_pid = getattr(self.checker, "pid", None)
805
old_checker = self.checker
806
if self.checker is not None:
807
old_checker_pid = self.checker.pid
809
old_checker_pid = None
1821
810
r = Client.start_checker(self, *args, **kwargs)
1822
811
# Only if new checker process was started
1823
812
if (self.checker is not None
1824
813
and old_checker_pid != self.checker.pid):
1825
814
# Emit D-Bus signal
1826
815
self.CheckerStarted(self.current_checker_command)
816
self.PropertyChanged(
817
dbus.String(u"CheckerRunning"),
818
dbus.Boolean(True, variant_level=1))
821
def stop_checker(self, *args, **kwargs):
822
old_checker = getattr(self, u"checker", None)
823
r = Client.stop_checker(self, *args, **kwargs)
824
if (old_checker is not None
825
and getattr(self, u"checker", None) is None):
826
self.PropertyChanged(dbus.String(u"CheckerRunning"),
827
dbus.Boolean(False, variant_level=1))
1829
830
def _reset_approved(self):
1830
self.approved = None
831
self._approved = None
1833
834
def approve(self, value=True):
1834
self.approved = value
1835
GObject.timeout_add(int(self.approval_duration.total_seconds()
1836
* 1000), self._reset_approved)
1837
835
self.send_changedstate()
836
self._approved = value
837
gobject.timeout_add(self._timedelta_to_milliseconds
838
(self.approval_duration),
839
self._reset_approved)
1839
842
## D-Bus methods, signals & properties
843
_interface = u"se.bsnet.fukt.Mandos.Client"
1845
847
# CheckerCompleted - signal
1846
@dbus.service.signal(_interface, signature="nxs")
848
@dbus.service.signal(_interface, signature=u"nxs")
1847
849
def CheckerCompleted(self, exitcode, waitstatus, command):
1851
853
# CheckerStarted - signal
1852
@dbus.service.signal(_interface, signature="s")
854
@dbus.service.signal(_interface, signature=u"s")
1853
855
def CheckerStarted(self, command):
1857
859
# PropertyChanged - signal
1858
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1859
@dbus.service.signal(_interface, signature="sv")
860
@dbus.service.signal(_interface, signature=u"sv")
1860
861
def PropertyChanged(self, property, value):
2487
1444
gnutls_priority GnuTLS priority string
2488
1445
use_dbus: Boolean; to emit D-Bus signals or not
2490
Assumes a GObject.MainLoop event loop.
1447
Assumes a gobject.MainLoop event loop.
2493
1449
def __init__(self, server_address, RequestHandlerClass,
2497
gnutls_priority=None,
1450
interface=None, use_ipv6=True, clients=None,
1451
gnutls_priority=None, use_dbus=True):
2500
1452
self.enabled = False
2501
1453
self.clients = clients
2502
1454
if self.clients is None:
1455
self.clients = set()
2504
1456
self.use_dbus = use_dbus
2505
1457
self.gnutls_priority = gnutls_priority
2506
1458
IPv6_TCPServer.__init__(self, server_address,
2507
1459
RequestHandlerClass,
2508
1460
interface = interface,
2509
use_ipv6 = use_ipv6,
2510
socketfd = socketfd)
1461
use_ipv6 = use_ipv6)
2512
1462
def server_activate(self):
2513
1463
if self.enabled:
2514
1464
return socketserver.TCPServer.server_activate(self)
2516
1465
def enable(self):
2517
1466
self.enabled = True
2519
def add_pipe(self, parent_pipe, proc):
1467
def add_pipe(self, parent_pipe):
2520
1468
# Call "handle_ipc" for both data and EOF events
2521
GObject.io_add_watch(
2522
parent_pipe.fileno(),
2523
GObject.IO_IN | GObject.IO_HUP,
2524
functools.partial(self.handle_ipc,
2525
parent_pipe = parent_pipe,
2528
def handle_ipc(self, source, condition,
1469
gobject.io_add_watch(parent_pipe.fileno(),
1470
gobject.IO_IN | gobject.IO_HUP,
1471
functools.partial(self.handle_ipc,
1472
parent_pipe = parent_pipe))
1474
def handle_ipc(self, source, condition, parent_pipe=None,
2531
1475
client_object=None):
2532
# error, or the other end of multiprocessing.Pipe has closed
2533
if condition & (GObject.IO_ERR | GObject.IO_HUP):
2534
# Wait for other process to exit
1477
gobject.IO_IN: u"IN", # There is data to read.
1478
gobject.IO_OUT: u"OUT", # Data can be written (without
1480
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1481
gobject.IO_ERR: u"ERR", # Error condition.
1482
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1483
# broken, usually for pipes and
1486
conditions_string = ' | '.join(name
1488
condition_names.iteritems()
1489
if cond & condition)
1490
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1493
# error or the other end of multiprocessing.Pipe has closed
1494
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2538
1497
# Read a request from the child
2539
1498
request = parent_pipe.recv()
1499
logger.debug(u"IPC request: %s", repr(request))
2540
1500
command = request[0]
2542
1502
if command == 'init':
2543
1503
fpr = request[1]
2544
1504
address = request[2]
2546
for c in self.clients.values():
1506
for c in self.clients:
2547
1507
if c.fingerprint == fpr:
2551
logger.info("Client not found for fingerprint: %s, ad"
2552
"dress: %s", fpr, address)
1511
logger.warning(u"Client not found for fingerprint: %s, ad"
1512
u"dress: %s", fpr, address)
2553
1513
if self.use_dbus:
2554
1514
# Emit D-Bus signal
2555
mandos_dbus_service.ClientNotFound(fpr,
1515
mandos_dbus_service.ClientNotFound(fpr, address)
2557
1516
parent_pipe.send(False)
2560
GObject.io_add_watch(
2561
parent_pipe.fileno(),
2562
GObject.IO_IN | GObject.IO_HUP,
2563
functools.partial(self.handle_ipc,
2564
parent_pipe = parent_pipe,
2566
client_object = client))
1519
gobject.io_add_watch(parent_pipe.fileno(),
1520
gobject.IO_IN | gobject.IO_HUP,
1521
functools.partial(self.handle_ipc,
1522
parent_pipe = parent_pipe,
1523
client_object = client))
2567
1524
parent_pipe.send(True)
2568
# remove the old hook in favor of the new above hook on
1525
# remove the old hook in favor of the new above hook on same fileno
2571
1527
if command == 'funcall':
2572
1528
funcname = request[1]
2573
1529
args = request[2]
2574
1530
kwargs = request[3]
2576
parent_pipe.send(('data', getattr(client_object,
1532
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
2580
1534
if command == 'getattr':
2581
1535
attrname = request[1]
2582
if isinstance(client_object.__getattribute__(attrname),
2583
collections.Callable):
2584
parent_pipe.send(('function', ))
1536
if callable(client_object.__getattribute__(attrname)):
1537
parent_pipe.send(('function',))
2587
'data', client_object.__getattribute__(attrname)))
1539
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
2589
1541
if command == 'setattr':
2590
1542
attrname = request[1]
2591
1543
value = request[2]
2592
1544
setattr(client_object, attrname, value)
2597
def rfc3339_duration_to_delta(duration):
2598
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2600
>>> rfc3339_duration_to_delta("P7D")
2601
datetime.timedelta(7)
2602
>>> rfc3339_duration_to_delta("PT60S")
2603
datetime.timedelta(0, 60)
2604
>>> rfc3339_duration_to_delta("PT60M")
2605
datetime.timedelta(0, 3600)
2606
>>> rfc3339_duration_to_delta("PT24H")
2607
datetime.timedelta(1)
2608
>>> rfc3339_duration_to_delta("P1W")
2609
datetime.timedelta(7)
2610
>>> rfc3339_duration_to_delta("PT5M30S")
2611
datetime.timedelta(0, 330)
2612
>>> rfc3339_duration_to_delta("P1DT3M20S")
2613
datetime.timedelta(1, 200)
2616
# Parsing an RFC 3339 duration with regular expressions is not
2617
# possible - there would have to be multiple places for the same
2618
# values, like seconds. The current code, while more esoteric, is
2619
# cleaner without depending on a parsing library. If Python had a
2620
# built-in library for parsing we would use it, but we'd like to
2621
# avoid excessive use of external libraries.
2623
# New type for defining tokens, syntax, and semantics all-in-one
2624
Token = collections.namedtuple("Token", (
2625
"regexp", # To match token; if "value" is not None, must have
2626
# a "group" containing digits
2627
"value", # datetime.timedelta or None
2628
"followers")) # Tokens valid after this token
2629
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2630
# the "duration" ABNF definition in RFC 3339, Appendix A.
2631
token_end = Token(re.compile(r"$"), None, frozenset())
2632
token_second = Token(re.compile(r"(\d+)S"),
2633
datetime.timedelta(seconds=1),
2634
frozenset((token_end, )))
2635
token_minute = Token(re.compile(r"(\d+)M"),
2636
datetime.timedelta(minutes=1),
2637
frozenset((token_second, token_end)))
2638
token_hour = Token(re.compile(r"(\d+)H"),
2639
datetime.timedelta(hours=1),
2640
frozenset((token_minute, token_end)))
2641
token_time = Token(re.compile(r"T"),
2643
frozenset((token_hour, token_minute,
2645
token_day = Token(re.compile(r"(\d+)D"),
2646
datetime.timedelta(days=1),
2647
frozenset((token_time, token_end)))
2648
token_month = Token(re.compile(r"(\d+)M"),
2649
datetime.timedelta(weeks=4),
2650
frozenset((token_day, token_end)))
2651
token_year = Token(re.compile(r"(\d+)Y"),
2652
datetime.timedelta(weeks=52),
2653
frozenset((token_month, token_end)))
2654
token_week = Token(re.compile(r"(\d+)W"),
2655
datetime.timedelta(weeks=1),
2656
frozenset((token_end, )))
2657
token_duration = Token(re.compile(r"P"), None,
2658
frozenset((token_year, token_month,
2659
token_day, token_time,
2661
# Define starting values
2662
value = datetime.timedelta() # Value so far
2664
followers = frozenset((token_duration, )) # Following valid tokens
2665
s = duration # String left to parse
2666
# Loop until end token is found
2667
while found_token is not token_end:
2668
# Search for any currently valid tokens
2669
for token in followers:
2670
match = token.regexp.match(s)
2671
if match is not None:
2673
if token.value is not None:
2674
# Value found, parse digits
2675
factor = int(match.group(1), 10)
2676
# Add to value so far
2677
value += factor * token.value
2678
# Strip token from string
2679
s = token.regexp.sub("", s, 1)
2682
# Set valid next tokens
2683
followers = found_token.followers
2686
# No currently valid tokens were found
2687
raise ValueError("Invalid RFC 3339 duration: {!r}"
2693
1549
def string_to_delta(interval):
2694
1550
"""Parse a string and return a datetime.timedelta
2696
>>> string_to_delta('7d')
1552
>>> string_to_delta(u'7d')
2697
1553
datetime.timedelta(7)
2698
>>> string_to_delta('60s')
1554
>>> string_to_delta(u'60s')
2699
1555
datetime.timedelta(0, 60)
2700
>>> string_to_delta('60m')
1556
>>> string_to_delta(u'60m')
2701
1557
datetime.timedelta(0, 3600)
2702
>>> string_to_delta('24h')
1558
>>> string_to_delta(u'24h')
2703
1559
datetime.timedelta(1)
2704
>>> string_to_delta('1w')
1560
>>> string_to_delta(u'1w')
2705
1561
datetime.timedelta(7)
2706
>>> string_to_delta('5m 30s')
1562
>>> string_to_delta(u'5m 30s')
2707
1563
datetime.timedelta(0, 330)
2711
return rfc3339_duration_to_delta(interval)
2715
1565
timevalue = datetime.timedelta(0)
2716
1566
for s in interval.split():
1568
suffix = unicode(s[-1])
2719
1569
value = int(s[:-1])
2721
1571
delta = datetime.timedelta(value)
1572
elif suffix == u"s":
2723
1573
delta = datetime.timedelta(0, value)
1574
elif suffix == u"m":
2725
1575
delta = datetime.timedelta(0, 0, 0, 0, value)
1576
elif suffix == u"h":
2727
1577
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1578
elif suffix == u"w":
2729
1579
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2731
raise ValueError("Unknown suffix {!r}".format(suffix))
2732
except IndexError as e:
2733
raise ValueError(*(e.args))
1581
raise ValueError(u"Unknown suffix %r" % suffix)
1582
except (ValueError, IndexError), e:
1583
raise ValueError(e.message)
2734
1584
timevalue += delta
2735
1585
return timevalue
1588
def if_nametoindex(interface):
1589
"""Call the C function if_nametoindex(), or equivalent
1591
Note: This function cannot accept a unicode string."""
1592
global if_nametoindex
1594
if_nametoindex = (ctypes.cdll.LoadLibrary
1595
(ctypes.util.find_library(u"c"))
1597
except (OSError, AttributeError):
1598
logger.warning(u"Doing if_nametoindex the hard way")
1599
def if_nametoindex(interface):
1600
"Get an interface index the hard way, i.e. using fcntl()"
1601
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1602
with contextlib.closing(socket.socket()) as s:
1603
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1604
struct.pack(str(u"16s16x"),
1606
interface_index = struct.unpack(str(u"I"),
1608
return interface_index
1609
return if_nametoindex(interface)
2738
1612
def daemon(nochdir = False, noclose = False):
2739
1613
"""See daemon(3). Standard BSD Unix function.
2765
1639
##################################################################
2766
1640
# Parsing of options, both command line and config file
2768
parser = argparse.ArgumentParser()
2769
parser.add_argument("-v", "--version", action="version",
2770
version = "%(prog)s {}".format(version),
2771
help="show version number and exit")
2772
parser.add_argument("-i", "--interface", metavar="IF",
2773
help="Bind to interface IF")
2774
parser.add_argument("-a", "--address",
2775
help="Address to listen for requests on")
2776
parser.add_argument("-p", "--port", type=int,
2777
help="Port number to receive requests on")
2778
parser.add_argument("--check", action="store_true",
2779
help="Run self-test")
2780
parser.add_argument("--debug", action="store_true",
2781
help="Debug mode; run in foreground and log"
2782
" to terminal", default=None)
2783
parser.add_argument("--debuglevel", metavar="LEVEL",
2784
help="Debug level for stdout output")
2785
parser.add_argument("--priority", help="GnuTLS"
2786
" priority string (see GnuTLS documentation)")
2787
parser.add_argument("--servicename",
2788
metavar="NAME", help="Zeroconf service name")
2789
parser.add_argument("--configdir",
2790
default="/etc/mandos", metavar="DIR",
2791
help="Directory to search for configuration"
2793
parser.add_argument("--no-dbus", action="store_false",
2794
dest="use_dbus", help="Do not provide D-Bus"
2795
" system bus interface", default=None)
2796
parser.add_argument("--no-ipv6", action="store_false",
2797
dest="use_ipv6", help="Do not use IPv6",
2799
parser.add_argument("--no-restore", action="store_false",
2800
dest="restore", help="Do not restore stored"
2801
" state", default=None)
2802
parser.add_argument("--socket", type=int,
2803
help="Specify a file descriptor to a network"
2804
" socket to use instead of creating one")
2805
parser.add_argument("--statedir", metavar="DIR",
2806
help="Directory to save/restore state in")
2807
parser.add_argument("--foreground", action="store_true",
2808
help="Run in foreground", default=None)
2809
parser.add_argument("--no-zeroconf", action="store_false",
2810
dest="zeroconf", help="Do not use Zeroconf",
2813
options = parser.parse_args()
1642
parser = optparse.OptionParser(version = "%%prog %s" % version)
1643
parser.add_option("-i", u"--interface", type=u"string",
1644
metavar="IF", help=u"Bind to interface IF")
1645
parser.add_option("-a", u"--address", type=u"string",
1646
help=u"Address to listen for requests on")
1647
parser.add_option("-p", u"--port", type=u"int",
1648
help=u"Port number to receive requests on")
1649
parser.add_option("--check", action=u"store_true",
1650
help=u"Run self-test")
1651
parser.add_option("--debug", action=u"store_true",
1652
help=u"Debug mode; run in foreground and log to"
1654
parser.add_option("--debuglevel", type=u"string", metavar="Level",
1655
help=u"Debug level for stdout output")
1656
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1657
u" priority string (see GnuTLS documentation)")
1658
parser.add_option("--servicename", type=u"string",
1659
metavar=u"NAME", help=u"Zeroconf service name")
1660
parser.add_option("--configdir", type=u"string",
1661
default=u"/etc/mandos", metavar=u"DIR",
1662
help=u"Directory to search for configuration"
1664
parser.add_option("--no-dbus", action=u"store_false",
1665
dest=u"use_dbus", help=u"Do not provide D-Bus"
1666
u" system bus interface")
1667
parser.add_option("--no-ipv6", action=u"store_false",
1668
dest=u"use_ipv6", help=u"Do not use IPv6")
1669
options = parser.parse_args()[0]
2815
1671
if options.check:
2817
fail_count, test_count = doctest.testmod()
2818
sys.exit(os.EX_OK if fail_count == 0 else 1)
2820
1676
# Default values for config file for server-global settings
2821
server_defaults = { "interface": "",
2826
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2827
":+SIGN-DSA-SHA256",
2828
"servicename": "Mandos",
2834
"statedir": "/var/lib/mandos",
2835
"foreground": "False",
1677
server_defaults = { u"interface": u"",
1682
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1683
u"servicename": u"Mandos",
1684
u"use_dbus": u"True",
1685
u"use_ipv6": u"True",
2839
1689
# Parse config file for server-global settings
2840
1690
server_config = configparser.SafeConfigParser(server_defaults)
2841
1691
del server_defaults
2842
server_config.read(os.path.join(options.configdir, "mandos.conf"))
1692
server_config.read(os.path.join(options.configdir,
2843
1694
# Convert the SafeConfigParser object to a dict
2844
1695
server_settings = server_config.defaults()
2845
1696
# Use the appropriate methods on the non-string config options
2846
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2847
server_settings[option] = server_config.getboolean("DEFAULT",
1697
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1698
server_settings[option] = server_config.getboolean(u"DEFAULT",
2849
1700
if server_settings["port"]:
2850
server_settings["port"] = server_config.getint("DEFAULT",
2852
if server_settings["socket"]:
2853
server_settings["socket"] = server_config.getint("DEFAULT",
2855
# Later, stdin will, and stdout and stderr might, be dup'ed
2856
# over with an opened os.devnull. But we don't want this to
2857
# happen with a supplied network socket.
2858
if 0 <= server_settings["socket"] <= 2:
2859
server_settings["socket"] = os.dup(server_settings
1701
server_settings["port"] = server_config.getint(u"DEFAULT",
2861
1703
del server_config
2863
1705
# Override the settings from the config file with command line
2864
1706
# options, if set.
2865
for option in ("interface", "address", "port", "debug",
2866
"priority", "servicename", "configdir", "use_dbus",
2867
"use_ipv6", "debuglevel", "restore", "statedir",
2868
"socket", "foreground", "zeroconf"):
1707
for option in (u"interface", u"address", u"port", u"debug",
1708
u"priority", u"servicename", u"configdir",
1709
u"use_dbus", u"use_ipv6", u"debuglevel"):
2869
1710
value = getattr(options, option)
2870
1711
if value is not None:
2871
1712
server_settings[option] = value
2873
1714
# Force all strings to be unicode
2874
1715
for option in server_settings.keys():
2875
if isinstance(server_settings[option], bytes):
2876
server_settings[option] = (server_settings[option]
2878
# Force all boolean options to be boolean
2879
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2880
"foreground", "zeroconf"):
2881
server_settings[option] = bool(server_settings[option])
2882
# Debug implies foreground
2883
if server_settings["debug"]:
2884
server_settings["foreground"] = True
1716
if type(server_settings[option]) is str:
1717
server_settings[option] = unicode(server_settings[option])
2885
1718
# Now we have our good server settings in "server_settings"
2887
1720
##################################################################
2889
if (not server_settings["zeroconf"]
2890
and not (server_settings["port"]
2891
or server_settings["socket"] != "")):
2892
parser.error("Needs port or socket to work without Zeroconf")
2894
1722
# For convenience
2895
debug = server_settings["debug"]
2896
debuglevel = server_settings["debuglevel"]
2897
use_dbus = server_settings["use_dbus"]
2898
use_ipv6 = server_settings["use_ipv6"]
2899
stored_state_path = os.path.join(server_settings["statedir"],
2901
foreground = server_settings["foreground"]
2902
zeroconf = server_settings["zeroconf"]
2905
initlogger(debug, logging.DEBUG)
2910
level = getattr(logging, debuglevel.upper())
2911
initlogger(debug, level)
2913
if server_settings["servicename"] != "Mandos":
2914
syslogger.setFormatter(
2915
logging.Formatter('Mandos ({}) [%(process)d]:'
2916
' %(levelname)s: %(message)s'.format(
2917
server_settings["servicename"])))
1723
debug = server_settings[u"debug"]
1724
debuglevel = server_settings[u"debuglevel"]
1725
use_dbus = server_settings[u"use_dbus"]
1726
use_ipv6 = server_settings[u"use_ipv6"]
1728
if server_settings[u"servicename"] != u"Mandos":
1729
syslogger.setFormatter(logging.Formatter
1730
(u'Mandos (%s) [%%(process)d]:'
1731
u' %%(levelname)s: %%(message)s'
1732
% server_settings[u"servicename"]))
2919
1734
# Parse config file with clients
2920
client_config = configparser.SafeConfigParser(Client
2922
client_config.read(os.path.join(server_settings["configdir"],
1735
client_defaults = { u"timeout": u"1h",
1737
u"checker": u"fping -q -- %%(host)s",
1739
u"approval_delay": u"0s",
1740
u"approval_duration": u"1s",
1742
client_config = configparser.SafeConfigParser(client_defaults)
1743
client_config.read(os.path.join(server_settings[u"configdir"],
2925
1746
global mandos_dbus_service
2926
1747
mandos_dbus_service = None
2929
if server_settings["socket"] != "":
2930
socketfd = server_settings["socket"]
2931
tcp_server = MandosServer(
2932
(server_settings["address"], server_settings["port"]),
2934
interface=(server_settings["interface"] or None),
2936
gnutls_priority=server_settings["priority"],
2940
pidfilename = "/run/mandos.pid"
2941
if not os.path.isdir("/run/."):
2942
pidfilename = "/var/run/mandos.pid"
2945
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2946
except IOError as e:
2947
logger.error("Could not open file %r", pidfilename,
1749
tcp_server = MandosServer((server_settings[u"address"],
1750
server_settings[u"port"]),
1752
interface=(server_settings[u"interface"]
1756
server_settings[u"priority"],
1758
pidfilename = u"/var/run/mandos.pid"
1760
pidfile = open(pidfilename, u"w")
1762
logger.error(u"Could not open file %r", pidfilename)
2950
for name, group in (("_mandos", "_mandos"),
2951
("mandos", "mandos"),
2952
("nobody", "nogroup")):
1765
uid = pwd.getpwnam(u"_mandos").pw_uid
1766
gid = pwd.getpwnam(u"_mandos").pw_gid
2954
uid = pwd.getpwnam(name).pw_uid
2955
gid = pwd.getpwnam(group).pw_gid
1769
uid = pwd.getpwnam(u"mandos").pw_uid
1770
gid = pwd.getpwnam(u"mandos").pw_gid
2957
1771
except KeyError:
1773
uid = pwd.getpwnam(u"nobody").pw_uid
1774
gid = pwd.getpwnam(u"nobody").pw_gid
2966
logger.debug("Did setuid/setgid to {}:{}".format(uid,
2968
except OSError as error:
2969
logger.warning("Failed to setuid/setgid to {}:{}: {}"
2970
.format(uid, gid, os.strerror(error.errno)))
2971
if error.errno != errno.EPERM:
1781
except OSError, error:
1782
if error[0] != errno.EPERM:
1785
if not debug and not debuglevel:
1786
syslogger.setLevel(logging.WARNING)
1787
console.setLevel(logging.WARNING)
1789
level = getattr(logging, debuglevel.upper())
1790
syslogger.setLevel(level)
1791
console.setLevel(level)
2975
1794
# Enable all possible GnuTLS debugging
2977
1796
# "Use a log level over 10 to enable all debugging options."
2978
1797
# - GnuTLS manual
2979
gnutls.global_set_log_level(11)
1798
gnutls.library.functions.gnutls_global_set_log_level(11)
1800
@gnutls.library.types.gnutls_log_func
2982
1801
def debug_gnutls(level, string):
2983
logger.debug("GnuTLS: %s", string[:-1])
1802
logger.debug(u"GnuTLS: %s", string[:-1])
2985
gnutls.global_set_log_function(debug_gnutls)
1804
(gnutls.library.functions
1805
.gnutls_global_set_log_function(debug_gnutls))
2987
1807
# Redirect stdin so all checkers get /dev/null
2988
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
1808
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2989
1809
os.dup2(null, sys.stdin.fileno())
2993
# Need to fork before connecting to D-Bus
2995
# Close all input and output, do double fork, etc.
2998
# multiprocessing will use threads, so before we use GObject we
2999
# need to inform GObject that threads will be used.
3000
GObject.threads_init()
1813
# No console logging
1814
logger.removeHandler(console)
3002
1817
global main_loop
3003
1818
# From the Avahi example code
3004
DBusGMainLoop(set_as_default=True)
3005
main_loop = GObject.MainLoop()
1819
DBusGMainLoop(set_as_default=True )
1820
main_loop = gobject.MainLoop()
3006
1821
bus = dbus.SystemBus()
3007
1822
# End of Avahi example code
3010
bus_name = dbus.service.BusName("se.recompile.Mandos",
3013
old_bus_name = dbus.service.BusName(
3014
"se.bsnet.fukt.Mandos", bus,
3016
except dbus.exceptions.DBusException as e:
3017
logger.error("Disabling D-Bus:", exc_info=e)
1825
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1826
bus, do_not_queue=True)
1827
except dbus.exceptions.NameExistsException, e:
1828
logger.error(unicode(e) + u", disabling D-Bus")
3018
1829
use_dbus = False
3019
server_settings["use_dbus"] = False
1830
server_settings[u"use_dbus"] = False
3020
1831
tcp_server.use_dbus = False
3022
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3023
service = AvahiServiceToSyslog(
3024
name = server_settings["servicename"],
3025
servicetype = "_mandos._tcp",
3026
protocol = protocol,
3028
if server_settings["interface"]:
3029
service.interface = if_nametoindex(
3030
server_settings["interface"].encode("utf-8"))
1832
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1833
service = AvahiService(name = server_settings[u"servicename"],
1834
servicetype = u"_mandos._tcp",
1835
protocol = protocol, bus = bus)
1836
if server_settings["interface"]:
1837
service.interface = (if_nametoindex
1838
(str(server_settings[u"interface"])))
1841
# Close all input and output, do double fork, etc.
3032
1844
global multiprocessing_manager
3033
1845
multiprocessing_manager = multiprocessing.Manager()
3035
1847
client_class = Client
3037
1849
client_class = functools.partial(ClientDBus, bus = bus)
3039
client_settings = Client.config_parser(client_config)
3040
old_client_settings = {}
3043
# This is used to redirect stdout and stderr for checker processes
3045
wnull = open(os.devnull, "w") # A writable /dev/null
3046
# Only used if server is running in foreground but not in debug
3048
if debug or not foreground:
3051
# Get client data and settings from last running state.
3052
if server_settings["restore"]:
3054
with open(stored_state_path, "rb") as stored_state:
3055
if sys.version_info.major == 2:
3056
clients_data, old_client_settings = pickle.load(
3059
bytes_clients_data, bytes_old_client_settings = (
3060
pickle.load(stored_state, encoding = "bytes"))
3061
### Fix bytes to strings
3064
clients_data = { (key.decode("utf-8")
3065
if isinstance(key, bytes)
3068
bytes_clients_data.items() }
3069
for key in clients_data:
3070
value = { (k.decode("utf-8")
3071
if isinstance(k, bytes) else k): v
3073
clients_data[key].items() }
3074
clients_data[key] = value
3076
value["client_structure"] = [
3078
if isinstance(s, bytes)
3080
value["client_structure"] ]
3082
for k in ("name", "host"):
3083
if isinstance(value[k], bytes):
3084
value[k] = value[k].decode("utf-8")
3085
## old_client_settings
3087
old_client_settings = {
3088
(key.decode("utf-8")
3089
if isinstance(key, bytes)
3092
bytes_old_client_settings.items() }
3094
for value in old_client_settings.values():
3095
value["host"] = value["host"].decode("utf-8")
3096
os.remove(stored_state_path)
3097
except IOError as e:
3098
if e.errno == errno.ENOENT:
3099
logger.warning("Could not load persistent state:"
3100
" {}".format(os.strerror(e.errno)))
3102
logger.critical("Could not load persistent state:",
3105
except EOFError as e:
3106
logger.warning("Could not load persistent state: "
3110
with PGPEngine() as pgp:
3111
for client_name, client in clients_data.items():
3112
# Skip removed clients
3113
if client_name not in client_settings:
3116
# Decide which value to use after restoring saved state.
3117
# We have three different values: Old config file,
3118
# new config file, and saved state.
3119
# New config value takes precedence if it differs from old
3120
# config value, otherwise use saved state.
3121
for name, value in client_settings[client_name].items():
3123
# For each value in new config, check if it
3124
# differs from the old config value (Except for
3125
# the "secret" attribute)
3126
if (name != "secret"
3128
old_client_settings[client_name][name])):
3129
client[name] = value
3133
# Clients who has passed its expire date can still be
3134
# enabled if its last checker was successful. A Client
3135
# whose checker succeeded before we stored its state is
3136
# assumed to have successfully run all checkers during
3138
if client["enabled"]:
3139
if datetime.datetime.utcnow() >= client["expires"]:
3140
if not client["last_checked_ok"]:
3142
"disabling client {} - Client never "
3143
"performed a successful checker".format(
3145
client["enabled"] = False
3146
elif client["last_checker_status"] != 0:
3148
"disabling client {} - Client last"
3149
" checker failed with error code"
3152
client["last_checker_status"]))
3153
client["enabled"] = False
3155
client["expires"] = (
3156
datetime.datetime.utcnow()
3157
+ client["timeout"])
3158
logger.debug("Last checker succeeded,"
3159
" keeping {} enabled".format(
1850
def client_config_items(config, section):
1851
special_settings = {
1852
"approved_by_default":
1853
lambda: config.getboolean(section,
1854
"approved_by_default"),
1856
for name, value in config.items(section):
3162
client["secret"] = pgp.decrypt(
3163
client["encrypted_secret"],
3164
client_settings[client_name]["secret"])
3166
# If decryption fails, we use secret from new settings
3167
logger.debug("Failed to decrypt {} old secret".format(
3169
client["secret"] = (client_settings[client_name]
3172
# Add/remove clients based on new changes made to config
3173
for client_name in (set(old_client_settings)
3174
- set(client_settings)):
3175
del clients_data[client_name]
3176
for client_name in (set(client_settings)
3177
- set(old_client_settings)):
3178
clients_data[client_name] = client_settings[client_name]
3180
# Create all client objects
3181
for client_name, client in clients_data.items():
3182
tcp_server.clients[client_name] = client_class(
3185
server_settings = server_settings)
1858
yield (name, special_settings[name]())
1862
tcp_server.clients.update(set(
1863
client_class(name = section,
1864
config= dict(client_config_items(
1865
client_config, section)))
1866
for section in client_config.sections()))
3187
1867
if not tcp_server.clients:
3188
logger.warning("No clients defined")
3191
if pidfile is not None:
1868
logger.warning(u"No clients defined")
3192
1872
pid = os.getpid()
3195
print(pid, file=pidfile)
3197
logger.error("Could not write to file %r with PID %d",
1873
pidfile.write(str(pid) + "\n")
1876
logger.error(u"Could not write to file %r with PID %d",
1879
# "pidfile" was never created
1884
signal.signal(signal.SIGINT, signal.SIG_IGN)
3202
1885
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
3203
1886
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3207
@alternate_dbus_interfaces(
3208
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3209
class MandosDBusService(DBusObjectWithObjectManager):
1889
class MandosDBusService(dbus.service.Object):
3210
1890
"""A D-Bus proxy object"""
3212
1891
def __init__(self):
3213
dbus.service.Object.__init__(self, bus, "/")
3215
_interface = "se.recompile.Mandos"
3217
@dbus.service.signal(_interface, signature="o")
1892
dbus.service.Object.__init__(self, bus, u"/")
1893
_interface = u"se.bsnet.fukt.Mandos"
1895
@dbus.service.signal(_interface, signature=u"o")
3218
1896
def ClientAdded(self, objpath):
3222
@dbus.service.signal(_interface, signature="ss")
1900
@dbus.service.signal(_interface, signature=u"ss")
3223
1901
def ClientNotFound(self, fingerprint, address):
3227
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3229
@dbus.service.signal(_interface, signature="os")
1905
@dbus.service.signal(_interface, signature=u"os")
3230
1906
def ClientRemoved(self, objpath, name):
3234
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3236
@dbus.service.method(_interface, out_signature="ao")
1910
@dbus.service.method(_interface, out_signature=u"ao")
3237
1911
def GetAllClients(self):
3239
return dbus.Array(c.dbus_object_path for c in
3240
tcp_server.clients.values())
1913
return dbus.Array(c.dbus_object_path
1914
for c in tcp_server.clients)
3242
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3244
1916
@dbus.service.method(_interface,
3245
out_signature="a{oa{sv}}")
1917
out_signature=u"a{oa{sv}}")
3246
1918
def GetAllClientsWithProperties(self):
3248
1920
return dbus.Dictionary(
3249
{ c.dbus_object_path: c.GetAll(
3250
"se.recompile.Mandos.Client")
3251
for c in tcp_server.clients.values() },
1921
((c.dbus_object_path, c.GetAll(u""))
1922
for c in tcp_server.clients),
1923
signature=u"oa{sv}")
3254
@dbus.service.method(_interface, in_signature="o")
1925
@dbus.service.method(_interface, in_signature=u"o")
3255
1926
def RemoveClient(self, object_path):
3257
for c in tcp_server.clients.values():
1928
for c in tcp_server.clients:
3258
1929
if c.dbus_object_path == object_path:
3259
del tcp_server.clients[c.name]
1930
tcp_server.clients.remove(c)
3260
1931
c.remove_from_connection()
3261
# Don't signal the disabling
1932
# Don't signal anything except ClientRemoved
3262
1933
c.disable(quiet=True)
3263
# Emit D-Bus signal for removal
3264
self.client_removed_signal(c)
1935
self.ClientRemoved(object_path, c.name)
3266
1937
raise KeyError(object_path)
3270
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3271
out_signature = "a{oa{sa{sv}}}")
3272
def GetManagedObjects(self):
3274
return dbus.Dictionary(
3275
{ client.dbus_object_path:
3277
{ interface: client.GetAll(interface)
3279
client._get_all_interface_names()})
3280
for client in tcp_server.clients.values()})
3282
def client_added_signal(self, client):
3283
"""Send the new standard signal and the old signal"""
3285
# New standard signal
3286
self.InterfacesAdded(
3287
client.dbus_object_path,
3289
{ interface: client.GetAll(interface)
3291
client._get_all_interface_names()}))
3293
self.ClientAdded(client.dbus_object_path)
3295
def client_removed_signal(self, client):
3296
"""Send the new standard signal and the old signal"""
3298
# New standard signal
3299
self.InterfacesRemoved(
3300
client.dbus_object_path,
3301
client._get_all_interface_names())
3303
self.ClientRemoved(client.dbus_object_path,
3306
1941
mandos_dbus_service = MandosDBusService()
3309
1944
"Cleanup function; run on exit"
3313
multiprocessing.active_children()
3315
if not (tcp_server.clients or client_settings):
3318
# Store client before exiting. Secrets are encrypted with key
3319
# based on what config file has. If config file is
3320
# removed/edited, old secret will thus be unrecovable.
3322
with PGPEngine() as pgp:
3323
for client in tcp_server.clients.values():
3324
key = client_settings[client.name]["secret"]
3325
client.encrypted_secret = pgp.encrypt(client.secret,
3329
# A list of attributes that can not be pickled
3331
exclude = { "bus", "changedstate", "secret",
3332
"checker", "server_settings" }
3333
for name, typ in inspect.getmembers(dbus.service
3337
client_dict["encrypted_secret"] = (client
3339
for attr in client.client_structure:
3340
if attr not in exclude:
3341
client_dict[attr] = getattr(client, attr)
3343
clients[client.name] = client_dict
3344
del client_settings[client.name]["secret"]
3347
with tempfile.NamedTemporaryFile(
3351
dir=os.path.dirname(stored_state_path),
3352
delete=False) as stored_state:
3353
pickle.dump((clients, client_settings), stored_state,
3355
tempname = stored_state.name
3356
os.rename(tempname, stored_state_path)
3357
except (IOError, OSError) as e:
3363
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3364
logger.warning("Could not save persistent state: {}"
3365
.format(os.strerror(e.errno)))
3367
logger.warning("Could not save persistent state:",
3371
# Delete all clients, and settings from config
3372
1947
while tcp_server.clients:
3373
name, client = tcp_server.clients.popitem()
1948
client = tcp_server.clients.pop()
3375
1950
client.remove_from_connection()
3376
# Don't signal the disabling
1951
client.disable_hook = None
1952
# Don't signal anything except ClientRemoved
3377
1953
client.disable(quiet=True)
3378
# Emit D-Bus signal for removal
3380
mandos_dbus_service.client_removed_signal(client)
3381
client_settings.clear()
1956
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
3383
1959
atexit.register(cleanup)
3385
for client in tcp_server.clients.values():
1961
for client in tcp_server.clients:
3387
# Emit D-Bus signal for adding
3388
mandos_dbus_service.client_added_signal(client)
3389
# Need to initiate checking of clients
3391
client.init_checker()
1964
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3393
1967
tcp_server.enable()
3394
1968
tcp_server.server_activate()
3396
1970
# Find out what port we got
3398
service.port = tcp_server.socket.getsockname()[1]
1971
service.port = tcp_server.socket.getsockname()[1]
3400
logger.info("Now listening on address %r, port %d,"
3401
" flowinfo %d, scope_id %d",
3402
*tcp_server.socket.getsockname())
1973
logger.info(u"Now listening on address %r, port %d,"
1974
" flowinfo %d, scope_id %d"
1975
% tcp_server.socket.getsockname())
3404
logger.info("Now listening on address %r, port %d",
3405
*tcp_server.socket.getsockname())
1977
logger.info(u"Now listening on address %r, port %d"
1978
% tcp_server.socket.getsockname())
3407
1980
#service.interface = tcp_server.socket.getsockname()[3]
3411
# From the Avahi example code
3414
except dbus.exceptions.DBusException as error:
3415
logger.critical("D-Bus Exception", exc_info=error)
3418
# End of Avahi example code
1983
# From the Avahi example code
1986
except dbus.exceptions.DBusException, error:
1987
logger.critical(u"DBusException: %s", error)
1990
# End of Avahi example code
3420
GObject.io_add_watch(tcp_server.fileno(), GObject.IO_IN,
1992
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
3421
1993
lambda *args, **kwargs:
3422
1994
(tcp_server.handle_request
3423
1995
(*args[2:], **kwargs) or True))
3425
logger.debug("Starting main loop")
1997
logger.debug(u"Starting main loop")
3426
1998
main_loop.run()
3427
except AvahiError as error:
3428
logger.critical("Avahi Error", exc_info=error)
1999
except AvahiError, error:
2000
logger.critical(u"AvahiError: %s", error)
3431
2003
except KeyboardInterrupt:
3433
print("", file=sys.stderr)
3434
logger.debug("Server received KeyboardInterrupt")
3435
logger.debug("Server exiting")
2006
logger.debug(u"Server received KeyboardInterrupt")
2007
logger.debug(u"Server exiting")
3436
2008
# Must run before the D-Bus bus name gets deregistered
3440
2011
if __name__ == '__main__':