69
import cPickle as pickle
63
import cPickle as pickle
72
64
import multiprocessing
81
71
import dbus.service
82
from gi.repository import GLib
83
74
from dbus.mainloop.glib import DBusGMainLoop
86
77
import xml.dom.minidom
89
# Try to find the value of SO_BINDTODEVICE:
91
# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and
92
# newer, and it is also the most natural place for it:
93
82
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
94
83
except AttributeError:
96
# This is where SO_BINDTODEVICE was up to and including Python
98
85
from IN import SO_BINDTODEVICE
99
86
except ImportError:
100
# In Python 2.7 it seems to have been removed entirely.
101
# Try running the C preprocessor:
103
cc = subprocess.Popen(["cc", "--language=c", "-E",
105
stdin=subprocess.PIPE,
106
stdout=subprocess.PIPE)
107
stdout = cc.communicate(
108
"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]
109
SO_BINDTODEVICE = int(stdout.splitlines()[-1])
110
except (OSError, ValueError, IndexError):
112
SO_BINDTODEVICE = None
114
if sys.version_info.major == 2:
87
SO_BINDTODEVICE = None
118
90
stored_state_file = "clients.pickle"
120
92
logger = logging.getLogger()
93
syslogger = (logging.handlers.SysLogHandler
94
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
95
address = str("/dev/log")))
124
if_nametoindex = ctypes.cdll.LoadLibrary(
125
ctypes.util.find_library("c")).if_nametoindex
98
if_nametoindex = (ctypes.cdll.LoadLibrary
99
(ctypes.util.find_library("c"))
126
101
except (OSError, AttributeError):
128
102
def if_nametoindex(interface):
129
103
"Get an interface index the hard way, i.e. using fcntl()"
130
104
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
131
105
with contextlib.closing(socket.socket()) as s:
132
106
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
133
struct.pack(b"16s16x", interface))
134
interface_index = struct.unpack("I", ifreq[16:20])[0]
107
struct.pack(str("16s16x"),
109
interface_index = struct.unpack(str("I"),
135
111
return interface_index
138
def copy_function(func):
139
"""Make a copy of a function"""
140
if sys.version_info.major == 2:
141
return types.FunctionType(func.func_code,
147
return types.FunctionType(func.__code__,
154
114
def initlogger(debug, level=logging.WARNING):
155
115
"""init logger and add loglevel"""
158
syslogger = (logging.handlers.SysLogHandler(
159
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
161
117
syslogger.setFormatter(logging.Formatter
162
118
('Mandos [%(process)d]: %(levelname)s:'
164
120
logger.addHandler(syslogger)
167
123
console = logging.StreamHandler()
168
124
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
225
169
os.rmdir(self.tempdir)
226
170
self.tempdir = None
228
172
def password_encode(self, password):
229
173
# Passphrase can not be empty and can not contain newlines or
230
174
# NUL bytes. So we prefix it and hex encode it.
231
encoded = b"mandos" + binascii.hexlify(password)
232
if len(encoded) > 2048:
233
# GnuPG can't handle long passwords, so encode differently
234
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
235
.replace(b"\n", b"\\n")
236
.replace(b"\0", b"\\x00"))
175
return b"mandos" + binascii.hexlify(password)
239
177
def encrypt(self, data, password):
240
passphrase = self.password_encode(password)
241
with tempfile.NamedTemporaryFile(
242
dir=self.tempdir) as passfile:
243
passfile.write(passphrase)
245
proc = subprocess.Popen([self.gpg, '--symmetric',
249
stdin=subprocess.PIPE,
250
stdout=subprocess.PIPE,
251
stderr=subprocess.PIPE)
252
ciphertext, err = proc.communicate(input=data)
253
if proc.returncode != 0:
178
self.gnupg.passphrase = self.password_encode(password)
179
with open(os.devnull, "w") as devnull:
181
proc = self.gnupg.run(['--symmetric'],
182
create_fhs=['stdin', 'stdout'],
183
attach_fhs={'stderr': devnull})
184
with contextlib.closing(proc.handles['stdin']) as f:
186
with contextlib.closing(proc.handles['stdout']) as f:
187
ciphertext = f.read()
191
self.gnupg.passphrase = None
255
192
return ciphertext
257
194
def decrypt(self, data, password):
258
passphrase = self.password_encode(password)
259
with tempfile.NamedTemporaryFile(
260
dir=self.tempdir) as passfile:
261
passfile.write(passphrase)
263
proc = subprocess.Popen([self.gpg, '--decrypt',
267
stdin=subprocess.PIPE,
268
stdout=subprocess.PIPE,
269
stderr=subprocess.PIPE)
270
decrypted_plaintext, err = proc.communicate(input=data)
271
if proc.returncode != 0:
195
self.gnupg.passphrase = self.password_encode(password)
196
with open(os.devnull, "w") as devnull:
198
proc = self.gnupg.run(['--decrypt'],
199
create_fhs=['stdin', 'stdout'],
200
attach_fhs={'stderr': devnull})
201
with contextlib.closing(proc.handles['stdin']) as f:
203
with contextlib.closing(proc.handles['stdout']) as f:
204
decrypted_plaintext = f.read()
208
self.gnupg.passphrase = None
273
209
return decrypted_plaintext
276
# Pretend that we have an Avahi module
278
"""This isn't so much a class as it is a module-like namespace.
279
It is instantiated once, and simulates having an Avahi module."""
280
IF_UNSPEC = -1 # avahi-common/address.h
281
PROTO_UNSPEC = -1 # avahi-common/address.h
282
PROTO_INET = 0 # avahi-common/address.h
283
PROTO_INET6 = 1 # avahi-common/address.h
284
DBUS_NAME = "org.freedesktop.Avahi"
285
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
286
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
287
DBUS_PATH_SERVER = "/"
289
def string_array_to_txt_array(self, t):
290
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
291
for s in t), signature="ay")
292
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
293
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
294
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
295
SERVER_INVALID = 0 # avahi-common/defs.h
296
SERVER_REGISTERING = 1 # avahi-common/defs.h
297
SERVER_RUNNING = 2 # avahi-common/defs.h
298
SERVER_COLLISION = 3 # avahi-common/defs.h
299
SERVER_FAILURE = 4 # avahi-common/defs.h
303
213
class AvahiError(Exception):
304
214
def __init__(self, value, *args, **kwargs):
305
215
self.value = value
306
return super(AvahiError, self).__init__(value, *args,
216
super(AvahiError, self).__init__(value, *args, **kwargs)
217
def __unicode__(self):
218
return unicode(repr(self.value))
310
220
class AvahiServiceError(AvahiError):
314
223
class AvahiGroupError(AvahiError):
318
227
class AvahiService(object):
319
228
"""An Avahi (Zeroconf) service.
322
231
interface: integer; avahi.IF_UNSPEC or an interface index.
323
232
Used to optionally bind to the specified interface.
324
233
name: string; Example: 'Mandos'
325
234
type: string; Example: '_mandos._tcp'.
326
See <https://www.iana.org/assignments/service-names-port-numbers>
235
See <http://www.dns-sd.org/ServiceTypes.html>
327
236
port: integer; what port to announce
328
237
TXT: list of strings; TXT record for the service
329
238
domain: string; Domain to publish on, default to .local if empty.
488
367
follow_name_owner_changes=True),
489
368
avahi.DBUS_INTERFACE_SERVER)
490
369
self.server.connect_to_signal("StateChanged",
491
self.server_state_changed)
370
self.server_state_changed)
492
371
self.server_state_changed(self.server.GetState())
495
373
class AvahiServiceToSyslog(AvahiService):
496
def rename(self, *args, **kwargs):
497
375
"""Add the new name to the syslog messages"""
498
ret = AvahiService.rename(self, *args, **kwargs)
499
syslogger.setFormatter(logging.Formatter(
500
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
376
ret = AvahiService.rename(self)
377
syslogger.setFormatter(logging.Formatter
378
('Mandos (%s) [%%(process)d]:'
379
' %%(levelname)s: %%(message)s'
505
# Pretend that we have a GnuTLS module
506
class GnuTLS(object):
507
"""This isn't so much a class as it is a module-like namespace.
508
It is instantiated once, and simulates having a GnuTLS module."""
510
library = ctypes.util.find_library("gnutls")
512
library = ctypes.util.find_library("gnutls-deb0")
513
_library = ctypes.cdll.LoadLibrary(library)
515
_need_version = b"3.3.0"
518
# Need to use "self" here, since this method is called before
519
# the assignment to the "gnutls" global variable happens.
520
if self.check_version(self._need_version) is None:
521
raise self.Error("Needs GnuTLS {} or later"
522
.format(self._need_version))
524
# Unless otherwise indicated, the constants and types below are
525
# all from the gnutls/gnutls.h C header file.
535
E_NO_CERTIFICATE_FOUND = -49
536
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
539
class session_int(ctypes.Structure):
541
session_t = ctypes.POINTER(session_int)
543
class certificate_credentials_st(ctypes.Structure):
545
certificate_credentials_t = ctypes.POINTER(
546
certificate_credentials_st)
547
certificate_type_t = ctypes.c_int
549
class datum_t(ctypes.Structure):
550
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
551
('size', ctypes.c_uint)]
553
class openpgp_crt_int(ctypes.Structure):
555
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
556
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
557
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
558
credentials_type_t = ctypes.c_int
559
transport_ptr_t = ctypes.c_void_p
560
close_request_t = ctypes.c_int
563
class Error(Exception):
564
# We need to use the class name "GnuTLS" here, since this
565
# exception might be raised from within GnuTLS.__init__,
566
# which is called before the assignment to the "gnutls"
567
# global variable has happened.
568
def __init__(self, message=None, code=None, args=()):
569
# Default usage is by a message string, but if a return
570
# code is passed, convert it to a string with
573
if message is None and code is not None:
574
message = GnuTLS.strerror(code)
575
return super(GnuTLS.Error, self).__init__(
578
class CertificateSecurityError(Error):
582
class Credentials(object):
584
self._c_object = gnutls.certificate_credentials_t()
585
gnutls.certificate_allocate_credentials(
586
ctypes.byref(self._c_object))
587
self.type = gnutls.CRD_CERTIFICATE
590
gnutls.certificate_free_credentials(self._c_object)
592
class ClientSession(object):
593
def __init__(self, socket, credentials=None):
594
self._c_object = gnutls.session_t()
595
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
596
gnutls.set_default_priority(self._c_object)
597
gnutls.transport_set_ptr(self._c_object, socket.fileno())
598
gnutls.handshake_set_private_extensions(self._c_object,
601
if credentials is None:
602
credentials = gnutls.Credentials()
603
gnutls.credentials_set(self._c_object, credentials.type,
604
ctypes.cast(credentials._c_object,
606
self.credentials = credentials
609
gnutls.deinit(self._c_object)
612
return gnutls.handshake(self._c_object)
614
def send(self, data):
618
data_len -= gnutls.record_send(self._c_object,
623
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
625
# Error handling functions
626
def _error_code(result):
627
"""A function to raise exceptions on errors, suitable
628
for the 'restype' attribute on ctypes functions"""
631
if result == gnutls.E_NO_CERTIFICATE_FOUND:
632
raise gnutls.CertificateSecurityError(code=result)
633
raise gnutls.Error(code=result)
635
def _retry_on_error(result, func, arguments):
636
"""A function to retry on some errors, suitable
637
for the 'errcheck' attribute on ctypes functions"""
639
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
640
return _error_code(result)
641
result = func(*arguments)
644
# Unless otherwise indicated, the function declarations below are
645
# all from the gnutls/gnutls.h C header file.
648
priority_set_direct = _library.gnutls_priority_set_direct
649
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
650
ctypes.POINTER(ctypes.c_char_p)]
651
priority_set_direct.restype = _error_code
653
init = _library.gnutls_init
654
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
655
init.restype = _error_code
657
set_default_priority = _library.gnutls_set_default_priority
658
set_default_priority.argtypes = [session_t]
659
set_default_priority.restype = _error_code
661
record_send = _library.gnutls_record_send
662
record_send.argtypes = [session_t, ctypes.c_void_p,
664
record_send.restype = ctypes.c_ssize_t
665
record_send.errcheck = _retry_on_error
667
certificate_allocate_credentials = (
668
_library.gnutls_certificate_allocate_credentials)
669
certificate_allocate_credentials.argtypes = [
670
ctypes.POINTER(certificate_credentials_t)]
671
certificate_allocate_credentials.restype = _error_code
673
certificate_free_credentials = (
674
_library.gnutls_certificate_free_credentials)
675
certificate_free_credentials.argtypes = [
676
certificate_credentials_t]
677
certificate_free_credentials.restype = None
679
handshake_set_private_extensions = (
680
_library.gnutls_handshake_set_private_extensions)
681
handshake_set_private_extensions.argtypes = [session_t,
683
handshake_set_private_extensions.restype = None
685
credentials_set = _library.gnutls_credentials_set
686
credentials_set.argtypes = [session_t, credentials_type_t,
688
credentials_set.restype = _error_code
690
strerror = _library.gnutls_strerror
691
strerror.argtypes = [ctypes.c_int]
692
strerror.restype = ctypes.c_char_p
694
certificate_type_get = _library.gnutls_certificate_type_get
695
certificate_type_get.argtypes = [session_t]
696
certificate_type_get.restype = _error_code
698
certificate_get_peers = _library.gnutls_certificate_get_peers
699
certificate_get_peers.argtypes = [session_t,
700
ctypes.POINTER(ctypes.c_uint)]
701
certificate_get_peers.restype = ctypes.POINTER(datum_t)
703
global_set_log_level = _library.gnutls_global_set_log_level
704
global_set_log_level.argtypes = [ctypes.c_int]
705
global_set_log_level.restype = None
707
global_set_log_function = _library.gnutls_global_set_log_function
708
global_set_log_function.argtypes = [log_func]
709
global_set_log_function.restype = None
711
deinit = _library.gnutls_deinit
712
deinit.argtypes = [session_t]
713
deinit.restype = None
715
handshake = _library.gnutls_handshake
716
handshake.argtypes = [session_t]
717
handshake.restype = _error_code
718
handshake.errcheck = _retry_on_error
720
transport_set_ptr = _library.gnutls_transport_set_ptr
721
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
722
transport_set_ptr.restype = None
724
bye = _library.gnutls_bye
725
bye.argtypes = [session_t, close_request_t]
726
bye.restype = _error_code
727
bye.errcheck = _retry_on_error
729
check_version = _library.gnutls_check_version
730
check_version.argtypes = [ctypes.c_char_p]
731
check_version.restype = ctypes.c_char_p
733
# All the function declarations below are from gnutls/openpgp.h
735
openpgp_crt_init = _library.gnutls_openpgp_crt_init
736
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
737
openpgp_crt_init.restype = _error_code
739
openpgp_crt_import = _library.gnutls_openpgp_crt_import
740
openpgp_crt_import.argtypes = [openpgp_crt_t,
741
ctypes.POINTER(datum_t),
743
openpgp_crt_import.restype = _error_code
745
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
746
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
747
ctypes.POINTER(ctypes.c_uint)]
748
openpgp_crt_verify_self.restype = _error_code
750
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
751
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
752
openpgp_crt_deinit.restype = None
754
openpgp_crt_get_fingerprint = (
755
_library.gnutls_openpgp_crt_get_fingerprint)
756
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
760
openpgp_crt_get_fingerprint.restype = _error_code
762
# Remove non-public functions
763
del _error_code, _retry_on_error
764
# Create the global "gnutls" object, simulating a module
768
def call_pipe(connection, # : multiprocessing.Connection
769
func, *args, **kwargs):
770
"""This function is meant to be called by multiprocessing.Process
772
This function runs func(*args, **kwargs), and writes the resulting
773
return value on the provided multiprocessing.Connection.
775
connection.send(func(*args, **kwargs))
383
def timedelta_to_milliseconds(td):
384
"Convert a datetime.timedelta() to milliseconds"
385
return ((td.days * 24 * 60 * 60 * 1000)
386
+ (td.seconds * 1000)
387
+ (td.microseconds // 1000))
779
389
class Client(object):
780
390
"""A representation of a client host served by this server.
783
393
approved: bool(); 'None' if not yet approved/disapproved
784
394
approval_delay: datetime.timedelta(); Time to wait for approval
819
427
runtime_expansions: Allowed attributes for runtime expansion.
820
428
expires: datetime.datetime(); time (UTC) when a client will be
821
429
disabled, or None
822
server_settings: The server_settings dict from main()
825
432
runtime_expansions = ("approval_delay", "approval_duration",
826
"created", "enabled", "expires",
827
"fingerprint", "host", "interval",
828
"last_approval_request", "last_checked_ok",
433
"created", "enabled", "fingerprint",
434
"host", "interval", "last_checked_ok",
829
435
"last_enabled", "name", "timeout")
832
"extended_timeout": "PT15M",
834
"checker": "fping -q -- %%(host)s",
836
"approval_delay": "PT0S",
837
"approval_duration": "PT1S",
838
"approved_by_default": "True",
436
client_defaults = { "timeout": "5m",
437
"extended_timeout": "15m",
439
"checker": "fping -q -- %%(host)s",
441
"approval_delay": "0s",
442
"approval_duration": "1s",
443
"approved_by_default": "True",
447
def timeout_milliseconds(self):
448
"Return the 'timeout' attribute in milliseconds"
449
return timedelta_to_milliseconds(self.timeout)
451
def extended_timeout_milliseconds(self):
452
"Return the 'extended_timeout' attribute in milliseconds"
453
return timedelta_to_milliseconds(self.extended_timeout)
455
def interval_milliseconds(self):
456
"Return the 'interval' attribute in milliseconds"
457
return timedelta_to_milliseconds(self.interval)
459
def approval_delay_milliseconds(self):
460
return timedelta_to_milliseconds(self.approval_delay)
843
463
def config_parser(config):
923
542
self.current_checker_command = None
924
543
self.approved = None
925
544
self.approvals_pending = 0
926
self.changedstate = multiprocessing_manager.Condition(
927
multiprocessing_manager.Lock())
928
self.client_structure = [attr
929
for attr in self.__dict__.keys()
545
self.changedstate = (multiprocessing_manager
546
.Condition(multiprocessing_manager
548
self.client_structure = [attr for attr in
549
self.__dict__.iterkeys()
930
550
if not attr.startswith("_")]
931
551
self.client_structure.append("client_structure")
933
for name, t in inspect.getmembers(
934
type(self), lambda obj: isinstance(obj, property)):
553
for name, t in inspect.getmembers(type(self),
935
557
if not name.startswith("_"):
936
558
self.client_structure.append(name)
938
560
# Send notice to process children that client state has changed
939
561
def send_changedstate(self):
940
562
with self.changedstate:
941
563
self.changedstate.notify_all()
943
565
def enable(self):
944
566
"""Start this client's checker and timeout hooks"""
945
567
if getattr(self, "enabled", False):
946
568
# Already enabled
570
self.send_changedstate()
948
571
self.expires = datetime.datetime.utcnow() + self.timeout
949
572
self.enabled = True
950
573
self.last_enabled = datetime.datetime.utcnow()
951
574
self.init_checker()
952
self.send_changedstate()
954
576
def disable(self, quiet=True):
955
577
"""Disable this client."""
956
578
if not getattr(self, "enabled", False):
581
self.send_changedstate()
959
583
logger.info("Disabling client %s", self.name)
960
if getattr(self, "disable_initiator_tag", None) is not None:
961
GLib.source_remove(self.disable_initiator_tag)
584
if getattr(self, "disable_initiator_tag", False):
585
gobject.source_remove(self.disable_initiator_tag)
962
586
self.disable_initiator_tag = None
963
587
self.expires = None
964
if getattr(self, "checker_initiator_tag", None) is not None:
965
GLib.source_remove(self.checker_initiator_tag)
588
if getattr(self, "checker_initiator_tag", False):
589
gobject.source_remove(self.checker_initiator_tag)
966
590
self.checker_initiator_tag = None
967
591
self.stop_checker()
968
592
self.enabled = False
970
self.send_changedstate()
971
# Do not run this again if called by a GLib.timeout_add
593
# Do not run this again if called by a gobject.timeout_add
974
596
def __del__(self):
977
599
def init_checker(self):
978
600
# Schedule a new checker to be started an 'interval' from now,
979
601
# and every interval from then on.
980
if self.checker_initiator_tag is not None:
981
GLib.source_remove(self.checker_initiator_tag)
982
self.checker_initiator_tag = GLib.timeout_add(
983
int(self.interval.total_seconds() * 1000),
602
self.checker_initiator_tag = (gobject.timeout_add
603
(self.interval_milliseconds(),
985
605
# Schedule a disable() when 'timeout' has passed
986
if self.disable_initiator_tag is not None:
987
GLib.source_remove(self.disable_initiator_tag)
988
self.disable_initiator_tag = GLib.timeout_add(
989
int(self.timeout.total_seconds() * 1000), self.disable)
606
self.disable_initiator_tag = (gobject.timeout_add
607
(self.timeout_milliseconds(),
990
609
# Also start a new checker *right now*.
991
610
self.start_checker()
993
def checker_callback(self, source, condition, connection,
612
def checker_callback(self, pid, condition, command):
995
613
"""The checker has completed, so take appropriate actions."""
996
614
self.checker_callback_tag = None
997
615
self.checker = None
998
# Read return code from connection (see call_pipe)
999
returncode = connection.recv()
1003
self.last_checker_status = returncode
1004
self.last_checker_signal = None
616
if os.WIFEXITED(condition):
617
self.last_checker_status = os.WEXITSTATUS(condition)
1005
618
if self.last_checker_status == 0:
1006
619
logger.info("Checker for %(name)s succeeded",
1008
621
self.checked_ok()
1010
logger.info("Checker for %(name)s failed", vars(self))
623
logger.info("Checker for %(name)s failed",
1012
626
self.last_checker_status = -1
1013
self.last_checker_signal = -returncode
1014
627
logger.warning("Checker for %(name)s crashed?",
1018
630
def checked_ok(self):
1019
631
"""Assert that the client has been seen, alive and well."""
1020
632
self.last_checked_ok = datetime.datetime.utcnow()
1021
633
self.last_checker_status = 0
1022
self.last_checker_signal = None
1023
634
self.bump_timeout()
1025
636
def bump_timeout(self, timeout=None):
1026
637
"""Bump up the timeout for this client."""
1027
638
if timeout is None:
1028
639
timeout = self.timeout
1029
640
if self.disable_initiator_tag is not None:
1030
GLib.source_remove(self.disable_initiator_tag)
1031
self.disable_initiator_tag = None
641
gobject.source_remove(self.disable_initiator_tag)
1032
642
if getattr(self, "enabled", False):
1033
self.disable_initiator_tag = GLib.timeout_add(
1034
int(timeout.total_seconds() * 1000), self.disable)
643
self.disable_initiator_tag = (gobject.timeout_add
644
(timedelta_to_milliseconds
645
(timeout), self.disable))
1035
646
self.expires = datetime.datetime.utcnow() + timeout
1037
648
def need_approval(self):
1038
649
self.last_approval_request = datetime.datetime.utcnow()
1040
651
def start_checker(self):
1041
652
"""Start a new checker subprocess if one is not running.
1043
654
If a checker already exists, leave it running and do
1045
656
# The reason for not killing a running checker is that if we
1046
# did that, and if a checker (for some reason) started running
1047
# slowly and taking more than 'interval' time, then the client
1048
# would inevitably timeout, since no checker would get a
1049
# chance to run to completion. If we instead leave running
657
# did that, then if a checker (for some reason) started
658
# running slowly and taking more than 'interval' time, the
659
# client would inevitably timeout, since no checker would get
660
# a chance to run to completion. If we instead leave running
1050
661
# checkers alone, the checker would have to take more time
1051
662
# than 'timeout' for the client to be disabled, which is as it
1054
if self.checker is not None and not self.checker.is_alive():
1055
logger.warning("Checker was not alive; joining")
665
# If a checker exists, make sure it is not a zombie
667
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
668
except (AttributeError, OSError) as error:
669
if (isinstance(error, OSError)
670
and error.errno != errno.ECHILD):
674
logger.warning("Checker was a zombie")
675
gobject.source_remove(self.checker_callback_tag)
676
self.checker_callback(pid, status,
677
self.current_checker_command)
1058
678
# Start a new checker if needed
1059
679
if self.checker is None:
1060
# Escape attributes for the shell
1062
attr: re.escape(str(getattr(self, attr)))
1063
for attr in self.runtime_expansions}
1065
command = self.checker_command % escaped_attrs
1066
except TypeError as error:
1067
logger.error('Could not format string "%s"',
1068
self.checker_command,
1070
return True # Try again later
681
# In case checker_command has exactly one % operator
682
command = self.checker_command % self.host
684
# Escape attributes for the shell
685
escaped_attrs = dict(
687
re.escape(unicode(str(getattr(self, attr, "")),
691
self.runtime_expansions)
694
command = self.checker_command % escaped_attrs
695
except TypeError as error:
696
logger.error('Could not format string "%s":'
697
' %s', self.checker_command, error)
698
return True # Try again later
1071
699
self.current_checker_command = command
1072
logger.info("Starting checker %r for %s", command,
1074
# We don't need to redirect stdout and stderr, since
1075
# in normal mode, that is already done by daemon(),
1076
# and in debug mode we don't want to. (Stdin is
1077
# always replaced by /dev/null.)
1078
# The exception is when not debugging but nevertheless
1079
# running in the foreground; use the previously
1081
popen_args = {"close_fds": True,
1084
if (not self.server_settings["debug"]
1085
and self.server_settings["foreground"]):
1086
popen_args.update({"stdout": wnull,
1088
pipe = multiprocessing.Pipe(duplex=False)
1089
self.checker = multiprocessing.Process(
1091
args=(pipe[1], subprocess.call, command),
1093
self.checker.start()
1094
self.checker_callback_tag = GLib.io_add_watch(
1095
pipe[0].fileno(), GLib.IO_IN,
1096
self.checker_callback, pipe[0], command)
1097
# Re-run this periodically if run by GLib.timeout_add
701
logger.info("Starting checker %r for %s",
703
# We don't need to redirect stdout and stderr, since
704
# in normal mode, that is already done by daemon(),
705
# and in debug mode we don't want to. (Stdin is
706
# always replaced by /dev/null.)
707
self.checker = subprocess.Popen(command,
710
self.checker_callback_tag = (gobject.child_watch_add
712
self.checker_callback,
714
# The checker may have completed before the gobject
715
# watch was added. Check for this.
716
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
718
gobject.source_remove(self.checker_callback_tag)
719
self.checker_callback(pid, status, command)
720
except OSError as error:
721
logger.error("Failed to start subprocess: %s",
723
# Re-run this periodically if run by gobject.timeout_add
1100
726
def stop_checker(self):
1101
727
"""Force the checker process, if any, to stop."""
1102
728
if self.checker_callback_tag:
1103
GLib.source_remove(self.checker_callback_tag)
729
gobject.source_remove(self.checker_callback_tag)
1104
730
self.checker_callback_tag = None
1105
731
if getattr(self, "checker", None) is None:
1107
733
logger.debug("Stopping checker for %(name)s", vars(self))
1108
self.checker.terminate()
735
self.checker.terminate()
737
#if self.checker.poll() is None:
738
# self.checker.kill()
739
except OSError as error:
740
if error.errno != errno.ESRCH: # No such process
1109
742
self.checker = None
1112
def dbus_service_property(dbus_interface,
745
def dbus_service_property(dbus_interface, signature="v",
746
access="readwrite", byte_arrays=False):
1116
747
"""Decorators for marking methods of a DBusObjectWithProperties to
1117
748
become properties on the D-Bus.
1119
750
The decorated method will be called with no arguments by "Get"
1120
751
and with one argument by "Set".
1122
753
The parameters, where they are supported, are the same as
1123
754
dbus.service.method, except there is only "signature", since the
1124
755
type from Get() and the type sent to Set() is the same.
1207
class DBusObjectWithAnnotations(dbus.service.Object):
1208
"""A D-Bus object with annotations.
1210
Classes inheriting from this can use the dbus_annotations
1211
decorator to add annotations to methods or signals.
831
class DBusObjectWithProperties(dbus.service.Object):
832
"""A D-Bus object with properties.
834
Classes inheriting from this can use the dbus_service_property
835
decorator to expose methods as D-Bus properties. It exposes the
836
standard Get(), Set(), and GetAll() methods on the D-Bus.
1215
840
def _is_dbus_thing(thing):
1216
841
"""Returns a function testing if an attribute is a D-Bus thing
1218
843
If called like _is_dbus_thing("method") it returns a function
1219
844
suitable for use as predicate to inspect.getmembers().
1221
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
846
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1224
849
def _get_all_dbus_things(self, thing):
1225
850
"""Returns a generator of (name, attribute) pairs
1227
return ((getattr(athing.__get__(self), "_dbus_name", name),
852
return ((getattr(athing.__get__(self), "_dbus_name",
1228
854
athing.__get__(self))
1229
855
for cls in self.__class__.__mro__
1230
856
for name, athing in
1231
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1233
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1235
path_keyword='object_path',
1236
connection_keyword='connection')
1237
def Introspect(self, object_path, connection):
1238
"""Overloading of standard D-Bus method.
1240
Inserts annotation tags on methods and signals.
1242
xmlstring = dbus.service.Object.Introspect(self, object_path,
1245
document = xml.dom.minidom.parseString(xmlstring)
1247
for if_tag in document.getElementsByTagName("interface"):
1248
# Add annotation tags
1249
for typ in ("method", "signal"):
1250
for tag in if_tag.getElementsByTagName(typ):
1252
for name, prop in (self.
1253
_get_all_dbus_things(typ)):
1254
if (name == tag.getAttribute("name")
1255
and prop._dbus_interface
1256
== if_tag.getAttribute("name")):
1257
annots.update(getattr(
1258
prop, "_dbus_annotations", {}))
1259
for name, value in annots.items():
1260
ann_tag = document.createElement(
1262
ann_tag.setAttribute("name", name)
1263
ann_tag.setAttribute("value", value)
1264
tag.appendChild(ann_tag)
1265
# Add interface annotation tags
1266
for annotation, value in dict(
1267
itertools.chain.from_iterable(
1268
annotations().items()
1269
for name, annotations
1270
in self._get_all_dbus_things("interface")
1271
if name == if_tag.getAttribute("name")
1273
ann_tag = document.createElement("annotation")
1274
ann_tag.setAttribute("name", annotation)
1275
ann_tag.setAttribute("value", value)
1276
if_tag.appendChild(ann_tag)
1277
# Fix argument name for the Introspect method itself
1278
if (if_tag.getAttribute("name")
1279
== dbus.INTROSPECTABLE_IFACE):
1280
for cn in if_tag.getElementsByTagName("method"):
1281
if cn.getAttribute("name") == "Introspect":
1282
for arg in cn.getElementsByTagName("arg"):
1283
if (arg.getAttribute("direction")
1285
arg.setAttribute("name",
1287
xmlstring = document.toxml("utf-8")
1289
except (AttributeError, xml.dom.DOMException,
1290
xml.parsers.expat.ExpatError) as error:
1291
logger.error("Failed to override Introspection method",
1296
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1297
"""A D-Bus object with properties.
1299
Classes inheriting from this can use the dbus_service_property
1300
decorator to expose methods as D-Bus properties. It exposes the
1301
standard Get(), Set(), and GetAll() methods on the D-Bus.
857
inspect.getmembers(cls,
858
self._is_dbus_thing(thing)))
1304
860
def _get_dbus_property(self, interface_name, property_name):
1305
861
"""Returns a bound method if one exists which is a D-Bus
1306
862
property with the specified name and interface.
1308
for cls in self.__class__.__mro__:
1309
for name, value in inspect.getmembers(
1310
cls, self._is_dbus_thing("property")):
864
for cls in self.__class__.__mro__:
865
for name, value in (inspect.getmembers
867
self._is_dbus_thing("property"))):
1311
868
if (value._dbus_name == property_name
1312
869
and value._dbus_interface == interface_name):
1313
870
return value.__get__(self)
1315
872
# No such property
1316
raise DBusPropertyNotFound("{}:{}.{}".format(
1317
self.dbus_object_path, interface_name, property_name))
1320
def _get_all_interface_names(cls):
1321
"""Get a sequence of all interfaces supported by an object"""
1322
return (name for name in set(getattr(getattr(x, attr),
1323
"_dbus_interface", None)
1324
for x in (inspect.getmro(cls))
1326
if name is not None)
1328
@dbus.service.method(dbus.PROPERTIES_IFACE,
873
raise DBusPropertyNotFound(self.dbus_object_path + ":"
874
+ interface_name + "."
877
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1330
878
out_signature="v")
1331
879
def Get(self, interface_name, property_name):
1332
880
"""Standard D-Bus property Get() method, see D-Bus standard.
1457
1006
except (AttributeError, xml.dom.DOMException,
1458
1007
xml.parsers.expat.ExpatError) as error:
1459
1008
logger.error("Failed to override Introspection method",
1465
dbus.OBJECT_MANAGER_IFACE
1466
except AttributeError:
1467
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1470
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1471
"""A D-Bus object with an ObjectManager.
1473
Classes inheriting from this exposes the standard
1474
GetManagedObjects call and the InterfacesAdded and
1475
InterfacesRemoved signals on the standard
1476
"org.freedesktop.DBus.ObjectManager" interface.
1478
Note: No signals are sent automatically; they must be sent
1481
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1482
out_signature="a{oa{sa{sv}}}")
1483
def GetManagedObjects(self):
1484
"""This function must be overridden"""
1485
raise NotImplementedError()
1487
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1488
signature="oa{sa{sv}}")
1489
def InterfacesAdded(self, object_path, interfaces_and_properties):
1492
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature="oas")
1493
def InterfacesRemoved(self, object_path, interfaces):
1496
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1498
path_keyword='object_path',
1499
connection_keyword='connection')
1500
def Introspect(self, object_path, connection):
1501
"""Overloading of standard D-Bus method.
1503
Override return argument name of GetManagedObjects to be
1504
"objpath_interfaces_and_properties"
1506
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1510
document = xml.dom.minidom.parseString(xmlstring)
1512
for if_tag in document.getElementsByTagName("interface"):
1513
# Fix argument name for the GetManagedObjects method
1514
if (if_tag.getAttribute("name")
1515
== dbus.OBJECT_MANAGER_IFACE):
1516
for cn in if_tag.getElementsByTagName("method"):
1517
if (cn.getAttribute("name")
1518
== "GetManagedObjects"):
1519
for arg in cn.getElementsByTagName("arg"):
1520
if (arg.getAttribute("direction")
1524
"objpath_interfaces"
1526
xmlstring = document.toxml("utf-8")
1528
except (AttributeError, xml.dom.DOMException,
1529
xml.parsers.expat.ExpatError) as error:
1530
logger.error("Failed to override Introspection method",
1535
def datetime_to_dbus(dt, variant_level=0):
1013
def datetime_to_dbus (dt, variant_level=0):
1536
1014
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1538
return dbus.String("", variant_level=variant_level)
1539
return dbus.String(dt.isoformat(), variant_level=variant_level)
1542
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1543
"""A class decorator; applied to a subclass of
1544
dbus.service.Object, it will add alternate D-Bus attributes with
1545
interface names according to the "alt_interface_names" mapping.
1548
@alternate_dbus_interfaces({"org.example.Interface":
1549
"net.example.AlternateInterface"})
1550
class SampleDBusObject(dbus.service.Object):
1551
@dbus.service.method("org.example.Interface")
1552
def SampleDBusMethod():
1555
The above "SampleDBusMethod" on "SampleDBusObject" will be
1556
reachable via two interfaces: "org.example.Interface" and
1557
"net.example.AlternateInterface", the latter of which will have
1558
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1559
"true", unless "deprecate" is passed with a False value.
1561
This works for methods and signals, and also for D-Bus properties
1562
(from DBusObjectWithProperties) and interfaces (from the
1563
dbus_interface_annotations decorator).
1016
return dbus.String("", variant_level = variant_level)
1017
return dbus.String(dt.isoformat(),
1018
variant_level=variant_level)
1021
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
1023
"""Applied to an empty subclass of a D-Bus object, this metaclass
1024
will add additional D-Bus attributes matching a certain pattern.
1567
for orig_interface_name, alt_interface_name in (
1568
alt_interface_names.items()):
1570
interface_names = set()
1571
# Go though all attributes of the class
1572
for attrname, attribute in inspect.getmembers(cls):
1026
def __new__(mcs, name, bases, attr):
1027
# Go through all the base classes which could have D-Bus
1028
# methods, signals, or properties in them
1029
old_interface_names = []
1030
for base in (b for b in bases
1031
if issubclass(b, dbus.service.Object)):
1032
# Go though all attributes of the base class
1033
for attrname, attribute in inspect.getmembers(base):
1573
1034
# Ignore non-D-Bus attributes, and D-Bus attributes
1574
1035
# with the wrong interface name
1575
1036
if (not hasattr(attribute, "_dbus_interface")
1576
or not attribute._dbus_interface.startswith(
1577
orig_interface_name)):
1037
or not attribute._dbus_interface
1038
.startswith("se.recompile.Mandos")):
1579
1040
# Create an alternate D-Bus interface name based on
1580
1041
# the current name
1581
alt_interface = attribute._dbus_interface.replace(
1582
orig_interface_name, alt_interface_name)
1583
interface_names.add(alt_interface)
1042
alt_interface = (attribute._dbus_interface
1043
.replace("se.recompile.Mandos",
1044
"se.bsnet.fukt.Mandos"))
1045
if alt_interface != attribute._dbus_interface:
1046
old_interface_names.append(alt_interface)
1584
1047
# Is this a D-Bus signal?
1585
1048
if getattr(attribute, "_dbus_is_signal", False):
1586
# Extract the original non-method undecorated
1587
# function by black magic
1588
if sys.version_info.major == 2:
1589
nonmethod_func = (dict(
1049
# Extract the original non-method function by
1051
nonmethod_func = (dict(
1590
1052
zip(attribute.func_code.co_freevars,
1591
attribute.__closure__))
1592
["func"].cell_contents)
1594
nonmethod_func = (dict(
1595
zip(attribute.__code__.co_freevars,
1596
attribute.__closure__))
1597
["func"].cell_contents)
1053
attribute.__closure__))["func"]
1598
1055
# Create a new, but exactly alike, function
1599
1056
# object, and decorate it to be a new D-Bus signal
1600
1057
# with the alternate D-Bus interface name
1601
new_function = copy_function(nonmethod_func)
1602
new_function = (dbus.service.signal(
1604
attribute._dbus_signature)(new_function))
1058
new_function = (dbus.service.signal
1060
attribute._dbus_signature)
1061
(types.FunctionType(
1062
nonmethod_func.func_code,
1063
nonmethod_func.func_globals,
1064
nonmethod_func.func_name,
1065
nonmethod_func.func_defaults,
1066
nonmethod_func.func_closure)))
1605
1067
# Copy annotations, if any
1607
new_function._dbus_annotations = dict(
1608
attribute._dbus_annotations)
1069
new_function._dbus_annotations = (
1070
dict(attribute._dbus_annotations))
1609
1071
except AttributeError:
1612
1073
# Define a creator of a function to call both the
1613
# original and alternate functions, so both the
1614
# original and alternate signals gets sent when
1615
# the function is called
1074
# old and new functions, so both the old and new
1075
# signals gets sent when the function is called
1616
1076
def fixscope(func1, func2):
1617
1077
"""This function is a scope container to pass
1618
1078
func1 and func2 to the "call_both" function
1619
1079
outside of its arguments"""
1621
@functools.wraps(func2)
1622
1080
def call_both(*args, **kwargs):
1623
1081
"""This function will emit two D-Bus
1624
1082
signals by calling func1 and func2"""
1625
1083
func1(*args, **kwargs)
1626
1084
func2(*args, **kwargs)
1627
# Make wrapper function look like a D-Bus
1629
for name, attr in inspect.getmembers(func2):
1630
if name.startswith("_dbus_"):
1631
setattr(call_both, name, attr)
1633
1085
return call_both
1634
1086
# Create the "call_both" function and add it to
1636
attr[attrname] = fixscope(attribute, new_function)
1088
attr[attrname] = fixscope(attribute,
1637
1090
# Is this a D-Bus method?
1638
1091
elif getattr(attribute, "_dbus_is_method", False):
1639
1092
# Create a new, but exactly alike, function
1640
1093
# object. Decorate it to be a new D-Bus method
1641
1094
# with the alternate D-Bus interface name. Add it
1642
1095
# to the class.
1644
dbus.service.method(
1646
attribute._dbus_in_signature,
1647
attribute._dbus_out_signature)
1648
(copy_function(attribute)))
1096
attr[attrname] = (dbus.service.method
1098
attribute._dbus_in_signature,
1099
attribute._dbus_out_signature)
1101
(attribute.func_code,
1102
attribute.func_globals,
1103
attribute.func_name,
1104
attribute.func_defaults,
1105
attribute.func_closure)))
1649
1106
# Copy annotations, if any
1651
attr[attrname]._dbus_annotations = dict(
1652
attribute._dbus_annotations)
1108
attr[attrname]._dbus_annotations = (
1109
dict(attribute._dbus_annotations))
1653
1110
except AttributeError:
1655
1112
# Is this a D-Bus property?
1676
1140
# object. Decorate it to be a new D-Bus interface
1677
1141
# with the alternate D-Bus interface name. Add it
1678
1142
# to the class.
1680
dbus_interface_annotations(alt_interface)
1681
(copy_function(attribute)))
1683
# Deprecate all alternate interfaces
1684
iname = "_AlternateDBusNames_interface_annotation{}"
1685
for interface_name in interface_names:
1687
@dbus_interface_annotations(interface_name)
1689
return {"org.freedesktop.DBus.Deprecated":
1691
# Find an unused name
1692
for aname in (iname.format(i)
1693
for i in itertools.count()):
1694
if aname not in attr:
1698
# Replace the class with a new subclass of it with
1699
# methods, signals, etc. as created above.
1700
if sys.version_info.major == 2:
1701
cls = type(b"{}Alternate".format(cls.__name__),
1704
cls = type("{}Alternate".format(cls.__name__),
1711
@alternate_dbus_interfaces({"se.recompile.Mandos":
1712
"se.bsnet.fukt.Mandos"})
1143
attr[attrname] = (dbus_interface_annotations
1146
(attribute.func_code,
1147
attribute.func_globals,
1148
attribute.func_name,
1149
attribute.func_defaults,
1150
attribute.func_closure)))
1151
# Deprecate all old interfaces
1152
basename="_AlternateDBusNamesMetaclass_interface_annotation{0}"
1153
for old_interface_name in old_interface_names:
1154
@dbus_interface_annotations(old_interface_name)
1156
return { "org.freedesktop.DBus.Deprecated": "true" }
1157
# Find an unused name
1158
for aname in (basename.format(i) for i in
1160
if aname not in attr:
1163
return type.__new__(mcs, name, bases, attr)
1713
1166
class ClientDBus(Client, DBusObjectWithProperties):
1714
1167
"""A Client class using D-Bus
1717
1170
dbus_object_path: dbus.ObjectPath
1718
1171
bus: dbus.SystemBus()
1721
1174
runtime_expansions = (Client.runtime_expansions
1722
+ ("dbus_object_path", ))
1724
_interface = "se.recompile.Mandos.Client"
1175
+ ("dbus_object_path",))
1726
1177
# dbus.service.Object doesn't use super(), so we can't either.
1728
def __init__(self, bus=None, *args, **kwargs):
1179
def __init__(self, bus = None, *args, **kwargs):
1730
1181
Client.__init__(self, *args, **kwargs)
1731
1182
# Only now, when this client is initialized, can it show up on
1733
client_object_name = str(self.name).translate(
1184
client_object_name = unicode(self.name).translate(
1734
1185
{ord("."): ord("_"),
1735
1186
ord("-"): ord("_")})
1736
self.dbus_object_path = dbus.ObjectPath(
1737
"/clients/" + client_object_name)
1187
self.dbus_object_path = (dbus.ObjectPath
1188
("/clients/" + client_object_name))
1738
1189
DBusObjectWithProperties.__init__(self, self.bus,
1739
1190
self.dbus_object_path)
1741
def notifychangeproperty(transform_func, dbus_name,
1742
type_func=lambda x: x,
1744
invalidate_only=False,
1745
_interface=_interface):
1192
def notifychangeproperty(transform_func,
1193
dbus_name, type_func=lambda x: x,
1746
1195
""" Modify a variable so that it's a property which announces
1747
1196
its changes to DBus.
1749
1198
transform_fun: Function that takes a value and a variant_level
1750
1199
and transforms it to a D-Bus type.
1751
1200
dbus_name: D-Bus name of the variable
1903
1350
server to mandos-client
1907
1354
# Rejected - signal
1908
1355
@dbus.service.signal(_interface, signature="s")
1909
1356
def Rejected(self, reason):
1913
1360
# NeedApproval - signal
1914
1361
@dbus.service.signal(_interface, signature="tb")
1915
1362
def NeedApproval(self, timeout, default):
1917
1364
return self.need_approval()
1921
1368
# Approve - method
1922
1369
@dbus.service.method(_interface, in_signature="b")
1923
1370
def Approve(self, value):
1924
1371
self.approve(value)
1926
1373
# CheckedOK - method
1927
1374
@dbus.service.method(_interface)
1928
1375
def CheckedOK(self):
1929
1376
self.checked_ok()
1931
1378
# Enable - method
1932
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1933
1379
@dbus.service.method(_interface)
1934
1380
def Enable(self):
1938
1384
# StartChecker - method
1939
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1940
1385
@dbus.service.method(_interface)
1941
1386
def StartChecker(self):
1943
1388
self.start_checker()
1945
1390
# Disable - method
1946
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1947
1391
@dbus.service.method(_interface)
1948
1392
def Disable(self):
1952
1396
# StopChecker - method
1953
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1954
1397
@dbus.service.method(_interface)
1955
1398
def StopChecker(self):
1956
1399
self.stop_checker()
1960
1403
# ApprovalPending - property
1961
1404
@dbus_service_property(_interface, signature="b", access="read")
1962
1405
def ApprovalPending_dbus_property(self):
1963
1406
return dbus.Boolean(bool(self.approvals_pending))
1965
1408
# ApprovedByDefault - property
1966
@dbus_service_property(_interface,
1409
@dbus_service_property(_interface, signature="b",
1968
1410
access="readwrite")
1969
1411
def ApprovedByDefault_dbus_property(self, value=None):
1970
1412
if value is None: # get
1971
1413
return dbus.Boolean(self.approved_by_default)
1972
1414
self.approved_by_default = bool(value)
1974
1416
# ApprovalDelay - property
1975
@dbus_service_property(_interface,
1417
@dbus_service_property(_interface, signature="t",
1977
1418
access="readwrite")
1978
1419
def ApprovalDelay_dbus_property(self, value=None):
1979
1420
if value is None: # get
1980
return dbus.UInt64(self.approval_delay.total_seconds()
1421
return dbus.UInt64(self.approval_delay_milliseconds())
1982
1422
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1984
1424
# ApprovalDuration - property
1985
@dbus_service_property(_interface,
1425
@dbus_service_property(_interface, signature="t",
1987
1426
access="readwrite")
1988
1427
def ApprovalDuration_dbus_property(self, value=None):
1989
1428
if value is None: # get
1990
return dbus.UInt64(self.approval_duration.total_seconds()
1429
return dbus.UInt64(timedelta_to_milliseconds(
1430
self.approval_duration))
1992
1431
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1994
1433
# Name - property
1996
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1997
1434
@dbus_service_property(_interface, signature="s", access="read")
1998
1435
def Name_dbus_property(self):
1999
1436
return dbus.String(self.name)
2001
1438
# Fingerprint - property
2003
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2004
1439
@dbus_service_property(_interface, signature="s", access="read")
2005
1440
def Fingerprint_dbus_property(self):
2006
1441
return dbus.String(self.fingerprint)
2008
1443
# Host - property
2009
@dbus_service_property(_interface,
1444
@dbus_service_property(_interface, signature="s",
2011
1445
access="readwrite")
2012
1446
def Host_dbus_property(self, value=None):
2013
1447
if value is None: # get
2014
1448
return dbus.String(self.host)
2015
self.host = str(value)
1449
self.host = unicode(value)
2017
1451
# Created - property
2019
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
2020
1452
@dbus_service_property(_interface, signature="s", access="read")
2021
1453
def Created_dbus_property(self):
2022
1454
return datetime_to_dbus(self.created)
2024
1456
# LastEnabled - property
2025
1457
@dbus_service_property(_interface, signature="s", access="read")
2026
1458
def LastEnabled_dbus_property(self):
2027
1459
return datetime_to_dbus(self.last_enabled)
2029
1461
# Enabled - property
2030
@dbus_service_property(_interface,
1462
@dbus_service_property(_interface, signature="b",
2032
1463
access="readwrite")
2033
1464
def Enabled_dbus_property(self, value=None):
2034
1465
if value is None: # get
2041
1472
# LastCheckedOK - property
2042
@dbus_service_property(_interface,
1473
@dbus_service_property(_interface, signature="s",
2044
1474
access="readwrite")
2045
1475
def LastCheckedOK_dbus_property(self, value=None):
2046
1476
if value is not None:
2047
1477
self.checked_ok()
2049
1479
return datetime_to_dbus(self.last_checked_ok)
2051
1481
# LastCheckerStatus - property
2052
@dbus_service_property(_interface, signature="n", access="read")
1482
@dbus_service_property(_interface, signature="n",
2053
1484
def LastCheckerStatus_dbus_property(self):
2054
1485
return dbus.Int16(self.last_checker_status)
2056
1487
# Expires - property
2057
1488
@dbus_service_property(_interface, signature="s", access="read")
2058
1489
def Expires_dbus_property(self):
2059
1490
return datetime_to_dbus(self.expires)
2061
1492
# LastApprovalRequest - property
2062
1493
@dbus_service_property(_interface, signature="s", access="read")
2063
1494
def LastApprovalRequest_dbus_property(self):
2064
1495
return datetime_to_dbus(self.last_approval_request)
2066
1497
# Timeout - property
2067
@dbus_service_property(_interface,
1498
@dbus_service_property(_interface, signature="t",
2069
1499
access="readwrite")
2070
1500
def Timeout_dbus_property(self, value=None):
2071
1501
if value is None: # get
2072
return dbus.UInt64(self.timeout.total_seconds() * 1000)
2073
old_timeout = self.timeout
1502
return dbus.UInt64(self.timeout_milliseconds())
2074
1503
self.timeout = datetime.timedelta(0, 0, 0, value)
2075
# Reschedule disabling
1504
# Reschedule timeout
2076
1505
if self.enabled:
2077
1506
now = datetime.datetime.utcnow()
2078
self.expires += self.timeout - old_timeout
2079
if self.expires <= now:
1507
time_to_die = timedelta_to_milliseconds(
1508
(self.last_checked_ok + self.timeout) - now)
1509
if time_to_die <= 0:
2080
1510
# The timeout has passed
1513
self.expires = (now +
1514
datetime.timedelta(milliseconds =
2083
1516
if (getattr(self, "disable_initiator_tag", None)
2086
GLib.source_remove(self.disable_initiator_tag)
2087
self.disable_initiator_tag = GLib.timeout_add(
2088
int((self.expires - now).total_seconds() * 1000),
1519
gobject.source_remove(self.disable_initiator_tag)
1520
self.disable_initiator_tag = (gobject.timeout_add
2091
1524
# ExtendedTimeout - property
2092
@dbus_service_property(_interface,
1525
@dbus_service_property(_interface, signature="t",
2094
1526
access="readwrite")
2095
1527
def ExtendedTimeout_dbus_property(self, value=None):
2096
1528
if value is None: # get
2097
return dbus.UInt64(self.extended_timeout.total_seconds()
1529
return dbus.UInt64(self.extended_timeout_milliseconds())
2099
1530
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
2101
1532
# Interval - property
2102
@dbus_service_property(_interface,
1533
@dbus_service_property(_interface, signature="t",
2104
1534
access="readwrite")
2105
1535
def Interval_dbus_property(self, value=None):
2106
1536
if value is None: # get
2107
return dbus.UInt64(self.interval.total_seconds() * 1000)
1537
return dbus.UInt64(self.interval_milliseconds())
2108
1538
self.interval = datetime.timedelta(0, 0, 0, value)
2109
1539
if getattr(self, "checker_initiator_tag", None) is None:
2111
1541
if self.enabled:
2112
1542
# Reschedule checker run
2113
GLib.source_remove(self.checker_initiator_tag)
2114
self.checker_initiator_tag = GLib.timeout_add(
2115
value, self.start_checker)
2116
self.start_checker() # Start one now, too
1543
gobject.source_remove(self.checker_initiator_tag)
1544
self.checker_initiator_tag = (gobject.timeout_add
1545
(value, self.start_checker))
1546
self.start_checker() # Start one now, too
2118
1548
# Checker - property
2119
@dbus_service_property(_interface,
1549
@dbus_service_property(_interface, signature="s",
2121
1550
access="readwrite")
2122
1551
def Checker_dbus_property(self, value=None):
2123
1552
if value is None: # get
2124
1553
return dbus.String(self.checker_command)
2125
self.checker_command = str(value)
1554
self.checker_command = unicode(value)
2127
1556
# CheckerRunning - property
2128
@dbus_service_property(_interface,
1557
@dbus_service_property(_interface, signature="b",
2130
1558
access="readwrite")
2131
1559
def CheckerRunning_dbus_property(self, value=None):
2132
1560
if value is None: # get
2173
1593
if data[0] == 'data':
2175
1595
if data[0] == 'function':
2177
1596
def func(*args, **kwargs):
2178
1597
self._pipe.send(('funcall', name, args, kwargs))
2179
1598
return self._pipe.recv()[1]
2183
1601
def __setattr__(self, name, value):
2184
1602
if name == '_pipe':
2185
1603
return super(ProxyClient, self).__setattr__(name, value)
2186
1604
self._pipe.send(('setattr', name, value))
1607
class ClientDBusTransitional(ClientDBus):
1608
__metaclass__ = AlternateDBusNamesMetaclass
2189
1611
class ClientHandler(socketserver.BaseRequestHandler, object):
2190
1612
"""A class to handle client connections.
2192
1614
Instantiated once for each connection to handle it.
2193
1615
Note: This will run in its own forked process."""
2195
1617
def handle(self):
2196
1618
with contextlib.closing(self.server.child_pipe) as child_pipe:
2197
1619
logger.info("TCP connection from: %s",
2198
str(self.client_address))
1620
unicode(self.client_address))
2199
1621
logger.debug("Pipe FD: %d",
2200
1622
self.server.child_pipe.fileno())
2202
session = gnutls.ClientSession(self.request)
2204
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2205
# "+AES-256-CBC", "+SHA1",
2206
# "+COMP-NULL", "+CTYPE-OPENPGP",
1624
session = (gnutls.connection
1625
.ClientSession(self.request,
1627
.X509Credentials()))
1629
# Note: gnutls.connection.X509Credentials is really a
1630
# generic GnuTLS certificate credentials object so long as
1631
# no X.509 keys are added to it. Therefore, we can use it
1632
# here despite using OpenPGP certificates.
1634
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1635
# "+AES-256-CBC", "+SHA1",
1636
# "+COMP-NULL", "+CTYPE-OPENPGP",
2208
1638
# Use a fallback default, since this MUST be set.
2209
1639
priority = self.server.gnutls_priority
2210
1640
if priority is None:
2211
1641
priority = "NORMAL"
2212
gnutls.priority_set_direct(session._c_object,
2213
priority.encode("utf-8"),
1642
(gnutls.library.functions
1643
.gnutls_priority_set_direct(session._c_object,
2216
1646
# Start communication using the Mandos protocol
2217
1647
# Get protocol number
2218
1648
line = self.request.makefile().readline()
2219
1649
logger.debug("Protocol version: %r", line)
2221
1651
if int(line.strip().split()[0]) > 1:
2222
raise RuntimeError(line)
2223
1653
except (ValueError, IndexError, RuntimeError) as error:
2224
1654
logger.error("Unknown protocol version: %s", error)
2227
1657
# Start GnuTLS connection
2229
1659
session.handshake()
2230
except gnutls.Error as error:
1660
except gnutls.errors.GNUTLSError as error:
2231
1661
logger.warning("Handshake failed: %s", error)
2232
1662
# Do not run session.bye() here: the session is not
2233
1663
# established. Just abandon the request.
2235
1665
logger.debug("Handshake succeeded")
2237
1667
approval_required = False
2240
fpr = self.fingerprint(
2241
self.peer_certificate(session))
2242
except (TypeError, gnutls.Error) as error:
1670
fpr = self.fingerprint(self.peer_certificate
1673
gnutls.errors.GNUTLSError) as error:
2243
1674
logger.warning("Bad certificate: %s", error)
2245
1676
logger.debug("Fingerprint: %s", fpr)
2248
1679
client = ProxyClient(child_pipe, fpr,
2249
1680
self.client_address)
2250
1681
except KeyError:
2253
1684
if client.approval_delay:
2254
1685
delay = client.approval_delay
2255
1686
client.approvals_pending += 1
2256
1687
approval_required = True
2259
1690
if not client.enabled:
2260
1691
logger.info("Client %s is disabled",
2262
1693
if self.server.use_dbus:
2263
1694
# Emit D-Bus signal
2264
1695
client.Rejected("Disabled")
2267
1698
if client.approved or not client.approval_delay:
2268
# We are approved or approval is disabled
1699
#We are approved or approval is disabled
2270
1701
elif client.approved is None:
2271
1702
logger.info("Client %s needs approval",
2304
1737
delay -= time2 - time
2307
session.send(client.secret)
2308
except gnutls.Error as error:
2309
logger.warning("gnutls send failed",
1740
while sent_size < len(client.secret):
1742
sent = session.send(client.secret[sent_size:])
1743
except gnutls.errors.GNUTLSError as error:
1744
logger.warning("gnutls send failed")
1746
logger.debug("Sent: %d, remaining: %d",
1747
sent, len(client.secret)
1748
- (sent_size + sent))
2313
1751
logger.info("Sending secret to %s", client.name)
2314
1752
# bump the timeout using extended_timeout
2315
1753
client.bump_timeout(client.extended_timeout)
2316
1754
if self.server.use_dbus:
2317
1755
# Emit D-Bus signal
2318
1756
client.GotSecret()
2321
1759
if approval_required:
2322
1760
client.approvals_pending -= 1
2325
except gnutls.Error as error:
2326
logger.warning("GnuTLS bye failed",
1763
except gnutls.errors.GNUTLSError as error:
1764
logger.warning("GnuTLS bye failed")
2330
1767
def peer_certificate(session):
2331
1768
"Return the peer's OpenPGP certificate as a bytestring"
2332
1769
# If not an OpenPGP certificate...
2333
if (gnutls.certificate_type_get(session._c_object)
2334
!= gnutls.CRT_OPENPGP):
2335
# ...return invalid data
1770
if (gnutls.library.functions
1771
.gnutls_certificate_type_get(session._c_object)
1772
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1773
# ...do the normal thing
1774
return session.peer_certificate
2337
1775
list_size = ctypes.c_uint(1)
2338
cert_list = (gnutls.certificate_get_peers
1776
cert_list = (gnutls.library.functions
1777
.gnutls_certificate_get_peers
2339
1778
(session._c_object, ctypes.byref(list_size)))
2340
1779
if not bool(cert_list) and list_size.value != 0:
2341
raise gnutls.Error("error getting peer certificate")
1780
raise gnutls.errors.GNUTLSError("error getting peer"
2342
1782
if list_size.value == 0:
2344
1784
cert = cert_list[0]
2345
1785
return ctypes.string_at(cert.data, cert.size)
2348
1788
def fingerprint(openpgp):
2349
1789
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
2350
1790
# New GnuTLS "datum" with the OpenPGP public key
2351
datum = gnutls.datum_t(
2352
ctypes.cast(ctypes.c_char_p(openpgp),
2353
ctypes.POINTER(ctypes.c_ubyte)),
2354
ctypes.c_uint(len(openpgp)))
1791
datum = (gnutls.library.types
1792
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1795
ctypes.c_uint(len(openpgp))))
2355
1796
# New empty GnuTLS certificate
2356
crt = gnutls.openpgp_crt_t()
2357
gnutls.openpgp_crt_init(ctypes.byref(crt))
1797
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1798
(gnutls.library.functions
1799
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2358
1800
# Import the OpenPGP public key into the certificate
2359
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2360
gnutls.OPENPGP_FMT_RAW)
1801
(gnutls.library.functions
1802
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1803
gnutls.library.constants
1804
.GNUTLS_OPENPGP_FMT_RAW))
2361
1805
# Verify the self signature in the key
2362
1806
crtverify = ctypes.c_uint()
2363
gnutls.openpgp_crt_verify_self(crt, 0,
2364
ctypes.byref(crtverify))
1807
(gnutls.library.functions
1808
.gnutls_openpgp_crt_verify_self(crt, 0,
1809
ctypes.byref(crtverify)))
2365
1810
if crtverify.value != 0:
2366
gnutls.openpgp_crt_deinit(crt)
2367
raise gnutls.CertificateSecurityError("Verify failed")
1811
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1812
raise (gnutls.errors.CertificateSecurityError
2368
1814
# New buffer for the fingerprint
2369
1815
buf = ctypes.create_string_buffer(20)
2370
1816
buf_len = ctypes.c_size_t()
2371
1817
# Get the fingerprint from the certificate into the buffer
2372
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2373
ctypes.byref(buf_len))
1818
(gnutls.library.functions
1819
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1820
ctypes.byref(buf_len)))
2374
1821
# Deinit the certificate
2375
gnutls.openpgp_crt_deinit(crt)
1822
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2376
1823
# Convert the buffer to a Python bytestring
2377
1824
fpr = ctypes.string_at(buf, buf_len.value)
2378
1825
# Convert the bytestring to hexadecimal notation
2383
1830
class MultiprocessingMixIn(object):
2384
1831
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2386
1832
def sub_process_main(self, request, address):
2388
1834
self.finish_request(request, address)
2389
1835
except Exception:
2390
1836
self.handle_error(request, address)
2391
1837
self.close_request(request)
2393
1839
def process_request(self, request, address):
2394
1840
"""Start a new process to process the request."""
2395
proc = multiprocessing.Process(target=self.sub_process_main,
2396
args=(request, address))
1841
proc = multiprocessing.Process(target = self.sub_process_main,
2401
1848
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
2402
1849
""" adds a pipe to the MixIn """
2404
1850
def process_request(self, request, client_address):
2405
1851
"""Overrides and wraps the original process_request().
2407
1853
This function creates a new pipe in self.pipe
2409
1855
parent_pipe, self.child_pipe = multiprocessing.Pipe()
2411
1857
proc = MultiprocessingMixIn.process_request(self, request,
2412
1858
client_address)
2413
1859
self.child_pipe.close()
2414
1860
self.add_pipe(parent_pipe, proc)
2416
1862
def add_pipe(self, parent_pipe, proc):
2417
1863
"""Dummy function; override as necessary"""
2418
raise NotImplementedError()
1864
raise NotImplementedError
2421
1867
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
2422
1868
socketserver.TCPServer, object):
2423
1869
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
2426
1872
enabled: Boolean; whether this server is activated yet
2427
1873
interface: None or a network interface name (string)
2428
1874
use_ipv6: Boolean; to use IPv6 or not
2431
1876
def __init__(self, server_address, RequestHandlerClass,
2435
"""If socketfd is set, use that file descriptor instead of
2436
creating a new one with socket.socket().
1877
interface=None, use_ipv6=True):
2438
1878
self.interface = interface
2440
1880
self.address_family = socket.AF_INET6
2441
if socketfd is not None:
2442
# Save the file descriptor
2443
self.socketfd = socketfd
2444
# Save the original socket.socket() function
2445
self.socket_socket = socket.socket
2447
# To implement --socket, we monkey patch socket.socket.
2449
# (When socketserver.TCPServer is a new-style class, we
2450
# could make self.socket into a property instead of monkey
2451
# patching socket.socket.)
2453
# Create a one-time-only replacement for socket.socket()
2454
@functools.wraps(socket.socket)
2455
def socket_wrapper(*args, **kwargs):
2456
# Restore original function so subsequent calls are
2458
socket.socket = self.socket_socket
2459
del self.socket_socket
2460
# This time only, return a new socket object from the
2461
# saved file descriptor.
2462
return socket.fromfd(self.socketfd, *args, **kwargs)
2463
# Replace socket.socket() function with wrapper
2464
socket.socket = socket_wrapper
2465
# The socketserver.TCPServer.__init__ will call
2466
# socket.socket(), which might be our replacement,
2467
# socket_wrapper(), if socketfd was set.
2468
1881
socketserver.TCPServer.__init__(self, server_address,
2469
1882
RequestHandlerClass)
2471
1883
def server_bind(self):
2472
1884
"""This overrides the normal server_bind() function
2473
1885
to bind to an interface if one was specified, and also NOT to
2474
1886
bind to an address or port if they were not specified."""
2475
global SO_BINDTODEVICE
2476
1887
if self.interface is not None:
2477
1888
if SO_BINDTODEVICE is None:
2478
# Fall back to a hard-coded value which seems to be
2480
logger.warning("SO_BINDTODEVICE not found, trying 25")
2481
SO_BINDTODEVICE = 25
2483
self.socket.setsockopt(
2484
socket.SOL_SOCKET, SO_BINDTODEVICE,
2485
(self.interface + "\0").encode("utf-8"))
2486
except socket.error as error:
2487
if error.errno == errno.EPERM:
2488
logger.error("No permission to bind to"
2489
" interface %s", self.interface)
2490
elif error.errno == errno.ENOPROTOOPT:
2491
logger.error("SO_BINDTODEVICE not available;"
2492
" cannot bind to interface %s",
2494
elif error.errno == errno.ENODEV:
2495
logger.error("Interface %s does not exist,"
2496
" cannot bind", self.interface)
1889
logger.error("SO_BINDTODEVICE does not exist;"
1890
" cannot bind to interface %s",
1894
self.socket.setsockopt(socket.SOL_SOCKET,
1898
except socket.error as error:
1899
if error[0] == errno.EPERM:
1900
logger.error("No permission to"
1901
" bind to interface %s",
1903
elif error[0] == errno.ENOPROTOOPT:
1904
logger.error("SO_BINDTODEVICE not available;"
1905
" cannot bind to interface %s",
2499
1909
# Only bind(2) the socket if we really need to.
2500
1910
if self.server_address[0] or self.server_address[1]:
2501
1911
if not self.server_address[0]:
2502
1912
if self.address_family == socket.AF_INET6:
2503
any_address = "::" # in6addr_any
1913
any_address = "::" # in6addr_any
2505
any_address = "0.0.0.0" # INADDR_ANY
1915
any_address = socket.INADDR_ANY
2506
1916
self.server_address = (any_address,
2507
1917
self.server_address[1])
2508
1918
elif not self.server_address[1]:
2509
self.server_address = (self.server_address[0], 0)
1919
self.server_address = (self.server_address[0],
2510
1921
# if self.interface:
2511
1922
# self.server_address = (self.server_address[0],
2609
2026
funcname = request[1]
2610
2027
args = request[2]
2611
2028
kwargs = request[3]
2613
2030
parent_pipe.send(('data', getattr(client_object,
2614
2031
funcname)(*args,
2617
2034
if command == 'getattr':
2618
2035
attrname = request[1]
2619
if isinstance(client_object.__getattribute__(attrname),
2620
collections.Callable):
2621
parent_pipe.send(('function', ))
2036
if callable(client_object.__getattribute__(attrname)):
2037
parent_pipe.send(('function',))
2624
'data', client_object.__getattribute__(attrname)))
2039
parent_pipe.send(('data', client_object
2040
.__getattribute__(attrname)))
2626
2042
if command == 'setattr':
2627
2043
attrname = request[1]
2628
2044
value = request[2]
2629
2045
setattr(client_object, attrname, value)
2634
def rfc3339_duration_to_delta(duration):
2635
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2637
>>> rfc3339_duration_to_delta("P7D")
2638
datetime.timedelta(7)
2639
>>> rfc3339_duration_to_delta("PT60S")
2640
datetime.timedelta(0, 60)
2641
>>> rfc3339_duration_to_delta("PT60M")
2642
datetime.timedelta(0, 3600)
2643
>>> rfc3339_duration_to_delta("PT24H")
2644
datetime.timedelta(1)
2645
>>> rfc3339_duration_to_delta("P1W")
2646
datetime.timedelta(7)
2647
>>> rfc3339_duration_to_delta("PT5M30S")
2648
datetime.timedelta(0, 330)
2649
>>> rfc3339_duration_to_delta("P1DT3M20S")
2650
datetime.timedelta(1, 200)
2653
# Parsing an RFC 3339 duration with regular expressions is not
2654
# possible - there would have to be multiple places for the same
2655
# values, like seconds. The current code, while more esoteric, is
2656
# cleaner without depending on a parsing library. If Python had a
2657
# built-in library for parsing we would use it, but we'd like to
2658
# avoid excessive use of external libraries.
2660
# New type for defining tokens, syntax, and semantics all-in-one
2661
Token = collections.namedtuple("Token", (
2662
"regexp", # To match token; if "value" is not None, must have
2663
# a "group" containing digits
2664
"value", # datetime.timedelta or None
2665
"followers")) # Tokens valid after this token
2666
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2667
# the "duration" ABNF definition in RFC 3339, Appendix A.
2668
token_end = Token(re.compile(r"$"), None, frozenset())
2669
token_second = Token(re.compile(r"(\d+)S"),
2670
datetime.timedelta(seconds=1),
2671
frozenset((token_end, )))
2672
token_minute = Token(re.compile(r"(\d+)M"),
2673
datetime.timedelta(minutes=1),
2674
frozenset((token_second, token_end)))
2675
token_hour = Token(re.compile(r"(\d+)H"),
2676
datetime.timedelta(hours=1),
2677
frozenset((token_minute, token_end)))
2678
token_time = Token(re.compile(r"T"),
2680
frozenset((token_hour, token_minute,
2682
token_day = Token(re.compile(r"(\d+)D"),
2683
datetime.timedelta(days=1),
2684
frozenset((token_time, token_end)))
2685
token_month = Token(re.compile(r"(\d+)M"),
2686
datetime.timedelta(weeks=4),
2687
frozenset((token_day, token_end)))
2688
token_year = Token(re.compile(r"(\d+)Y"),
2689
datetime.timedelta(weeks=52),
2690
frozenset((token_month, token_end)))
2691
token_week = Token(re.compile(r"(\d+)W"),
2692
datetime.timedelta(weeks=1),
2693
frozenset((token_end, )))
2694
token_duration = Token(re.compile(r"P"), None,
2695
frozenset((token_year, token_month,
2696
token_day, token_time,
2698
# Define starting values:
2700
value = datetime.timedelta()
2702
# Following valid tokens
2703
followers = frozenset((token_duration, ))
2704
# String left to parse
2706
# Loop until end token is found
2707
while found_token is not token_end:
2708
# Search for any currently valid tokens
2709
for token in followers:
2710
match = token.regexp.match(s)
2711
if match is not None:
2713
if token.value is not None:
2714
# Value found, parse digits
2715
factor = int(match.group(1), 10)
2716
# Add to value so far
2717
value += factor * token.value
2718
# Strip token from string
2719
s = token.regexp.sub("", s, 1)
2722
# Set valid next tokens
2723
followers = found_token.followers
2726
# No currently valid tokens were found
2727
raise ValueError("Invalid RFC 3339 duration: {!r}"
2733
2050
def string_to_delta(interval):
2734
2051
"""Parse a string and return a datetime.timedelta
2736
2053
>>> string_to_delta('7d')
2737
2054
datetime.timedelta(7)
2738
2055
>>> string_to_delta('60s')
2833
2144
parser.add_argument("--no-dbus", action="store_false",
2834
2145
dest="use_dbus", help="Do not provide D-Bus"
2835
" system bus interface", default=None)
2146
" system bus interface")
2836
2147
parser.add_argument("--no-ipv6", action="store_false",
2837
dest="use_ipv6", help="Do not use IPv6",
2148
dest="use_ipv6", help="Do not use IPv6")
2839
2149
parser.add_argument("--no-restore", action="store_false",
2840
2150
dest="restore", help="Do not restore stored"
2841
" state", default=None)
2842
parser.add_argument("--socket", type=int,
2843
help="Specify a file descriptor to a network"
2844
" socket to use instead of creating one")
2845
2152
parser.add_argument("--statedir", metavar="DIR",
2846
2153
help="Directory to save/restore state in")
2847
parser.add_argument("--foreground", action="store_true",
2848
help="Run in foreground", default=None)
2849
parser.add_argument("--no-zeroconf", action="store_false",
2850
dest="zeroconf", help="Do not use Zeroconf",
2853
2155
options = parser.parse_args()
2855
2157
if options.check:
2857
fail_count, test_count = doctest.testmod()
2858
sys.exit(os.EX_OK if fail_count == 0 else 1)
2860
2162
# Default values for config file for server-global settings
2861
server_defaults = {"interface": "",
2866
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2867
":+SIGN-DSA-SHA256",
2868
"servicename": "Mandos",
2874
"statedir": "/var/lib/mandos",
2875
"foreground": "False",
2163
server_defaults = { "interface": "",
2168
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2169
"servicename": "Mandos",
2174
"statedir": "/var/lib/mandos"
2879
2177
# Parse config file for server-global settings
2880
2178
server_config = configparser.SafeConfigParser(server_defaults)
2881
2179
del server_defaults
2882
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2180
server_config.read(os.path.join(options.configdir,
2883
2182
# Convert the SafeConfigParser object to a dict
2884
2183
server_settings = server_config.defaults()
2885
2184
# Use the appropriate methods on the non-string config options
2886
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2185
for option in ("debug", "use_dbus", "use_ipv6"):
2887
2186
server_settings[option] = server_config.getboolean("DEFAULT",
2889
2188
if server_settings["port"]:
2890
2189
server_settings["port"] = server_config.getint("DEFAULT",
2892
if server_settings["socket"]:
2893
server_settings["socket"] = server_config.getint("DEFAULT",
2895
# Later, stdin will, and stdout and stderr might, be dup'ed
2896
# over with an opened os.devnull. But we don't want this to
2897
# happen with a supplied network socket.
2898
if 0 <= server_settings["socket"] <= 2:
2899
server_settings["socket"] = os.dup(server_settings
2901
2191
del server_config
2903
2193
# Override the settings from the config file with command line
2904
2194
# options, if set.
2905
2195
for option in ("interface", "address", "port", "debug",
2906
"priority", "servicename", "configdir", "use_dbus",
2907
"use_ipv6", "debuglevel", "restore", "statedir",
2908
"socket", "foreground", "zeroconf"):
2196
"priority", "servicename", "configdir",
2197
"use_dbus", "use_ipv6", "debuglevel", "restore",
2909
2199
value = getattr(options, option)
2910
2200
if value is not None:
2911
2201
server_settings[option] = value
2913
2203
# Force all strings to be unicode
2914
2204
for option in server_settings.keys():
2915
if isinstance(server_settings[option], bytes):
2916
server_settings[option] = (server_settings[option]
2918
# Force all boolean options to be boolean
2919
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2920
"foreground", "zeroconf"):
2921
server_settings[option] = bool(server_settings[option])
2922
# Debug implies foreground
2923
if server_settings["debug"]:
2924
server_settings["foreground"] = True
2205
if type(server_settings[option]) is str:
2206
server_settings[option] = unicode(server_settings[option])
2925
2207
# Now we have our good server settings in "server_settings"
2927
2209
##################################################################
2929
if (not server_settings["zeroconf"]
2930
and not (server_settings["port"]
2931
or server_settings["socket"] != "")):
2932
parser.error("Needs port or socket to work without Zeroconf")
2934
2211
# For convenience
2935
2212
debug = server_settings["debug"]
2936
2213
debuglevel = server_settings["debuglevel"]
2950
2225
level = getattr(logging, debuglevel.upper())
2951
2226
initlogger(debug, level)
2953
2228
if server_settings["servicename"] != "Mandos":
2954
syslogger.setFormatter(
2955
logging.Formatter('Mandos ({}) [%(process)d]:'
2956
' %(levelname)s: %(message)s'.format(
2957
server_settings["servicename"])))
2229
syslogger.setFormatter(logging.Formatter
2230
('Mandos (%s) [%%(process)d]:'
2231
' %%(levelname)s: %%(message)s'
2232
% server_settings["servicename"]))
2959
2234
# Parse config file with clients
2960
2235
client_config = configparser.SafeConfigParser(Client
2961
2236
.client_defaults)
2962
2237
client_config.read(os.path.join(server_settings["configdir"],
2963
2238
"clients.conf"))
2965
2240
global mandos_dbus_service
2966
2241
mandos_dbus_service = None
2969
if server_settings["socket"] != "":
2970
socketfd = server_settings["socket"]
2971
tcp_server = MandosServer(
2972
(server_settings["address"], server_settings["port"]),
2974
interface=(server_settings["interface"] or None),
2976
gnutls_priority=server_settings["priority"],
2980
pidfilename = "/run/mandos.pid"
2981
if not os.path.isdir("/run/."):
2982
pidfilename = "/var/run/mandos.pid"
2985
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2986
except IOError as e:
2987
logger.error("Could not open file %r", pidfilename,
2990
for name, group in (("_mandos", "_mandos"),
2991
("mandos", "mandos"),
2992
("nobody", "nogroup")):
2994
uid = pwd.getpwnam(name).pw_uid
2995
gid = pwd.getpwnam(group).pw_gid
2243
tcp_server = MandosServer((server_settings["address"],
2244
server_settings["port"]),
2246
interface=(server_settings["interface"]
2250
server_settings["priority"],
2253
pidfilename = "/var/run/mandos.pid"
2255
pidfile = open(pidfilename, "w")
2257
logger.error("Could not open file %r", pidfilename)
2260
uid = pwd.getpwnam("_mandos").pw_uid
2261
gid = pwd.getpwnam("_mandos").pw_gid
2264
uid = pwd.getpwnam("mandos").pw_uid
2265
gid = pwd.getpwnam("mandos").pw_gid
2997
2266
except KeyError:
2268
uid = pwd.getpwnam("nobody").pw_uid
2269
gid = pwd.getpwnam("nobody").pw_gid
3006
logger.debug("Did setuid/setgid to {}:{}".format(uid,
3008
2276
except OSError as error:
3009
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3010
.format(uid, gid, os.strerror(error.errno)))
3011
if error.errno != errno.EPERM:
2277
if error[0] != errno.EPERM:
3015
2281
# Enable all possible GnuTLS debugging
3017
2283
# "Use a log level over 10 to enable all debugging options."
3018
2284
# - GnuTLS manual
3019
gnutls.global_set_log_level(11)
2285
gnutls.library.functions.gnutls_global_set_log_level(11)
2287
@gnutls.library.types.gnutls_log_func
3022
2288
def debug_gnutls(level, string):
3023
2289
logger.debug("GnuTLS: %s", string[:-1])
3025
gnutls.global_set_log_function(debug_gnutls)
2291
(gnutls.library.functions
2292
.gnutls_global_set_log_function(debug_gnutls))
3027
2294
# Redirect stdin so all checkers get /dev/null
3028
2295
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
3029
2296
os.dup2(null, sys.stdin.fileno())
3033
2300
# Need to fork before connecting to D-Bus
3035
2302
# Close all input and output, do double fork, etc.
3038
# multiprocessing will use threads, so before we use GLib we need
3039
# to inform GLib that threads will be used.
2305
gobject.threads_init()
3042
2307
global main_loop
3043
2308
# From the Avahi example code
3044
2309
DBusGMainLoop(set_as_default=True)
3045
main_loop = GLib.MainLoop()
2310
main_loop = gobject.MainLoop()
3046
2311
bus = dbus.SystemBus()
3047
2312
# End of Avahi example code
3050
2315
bus_name = dbus.service.BusName("se.recompile.Mandos",
3053
old_bus_name = dbus.service.BusName(
3054
"se.bsnet.fukt.Mandos", bus,
3056
except dbus.exceptions.DBusException as e:
3057
logger.error("Disabling D-Bus:", exc_info=e)
2316
bus, do_not_queue=True)
2317
old_bus_name = (dbus.service.BusName
2318
("se.bsnet.fukt.Mandos", bus,
2320
except dbus.exceptions.NameExistsException as e:
2321
logger.error(unicode(e) + ", disabling D-Bus")
3058
2322
use_dbus = False
3059
2323
server_settings["use_dbus"] = False
3060
2324
tcp_server.use_dbus = False
3062
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3063
service = AvahiServiceToSyslog(
3064
name=server_settings["servicename"],
3065
servicetype="_mandos._tcp",
3068
if server_settings["interface"]:
3069
service.interface = if_nametoindex(
3070
server_settings["interface"].encode("utf-8"))
2325
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2326
service = AvahiServiceToSyslog(name =
2327
server_settings["servicename"],
2328
servicetype = "_mandos._tcp",
2329
protocol = protocol, bus = bus)
2330
if server_settings["interface"]:
2331
service.interface = (if_nametoindex
2332
(str(server_settings["interface"])))
3072
2334
global multiprocessing_manager
3073
2335
multiprocessing_manager = multiprocessing.Manager()
3075
2337
client_class = Client
3077
client_class = functools.partial(ClientDBus, bus=bus)
2339
client_class = functools.partial(ClientDBusTransitional,
3079
2342
client_settings = Client.config_parser(client_config)
3080
2343
old_client_settings = {}
3081
2344
clients_data = {}
3083
# This is used to redirect stdout and stderr for checker processes
3085
wnull = open(os.devnull, "w") # A writable /dev/null
3086
# Only used if server is running in foreground but not in debug
3088
if debug or not foreground:
3091
2346
# Get client data and settings from last running state.
3092
2347
if server_settings["restore"]:
3094
2349
with open(stored_state_path, "rb") as stored_state:
3095
if sys.version_info.major == 2:
3096
clients_data, old_client_settings = pickle.load(
3099
bytes_clients_data, bytes_old_client_settings = (
3100
pickle.load(stored_state, encoding="bytes"))
3101
# Fix bytes to strings
3104
clients_data = {(key.decode("utf-8")
3105
if isinstance(key, bytes)
3108
bytes_clients_data.items()}
3109
del bytes_clients_data
3110
for key in clients_data:
3111
value = {(k.decode("utf-8")
3112
if isinstance(k, bytes) else k): v
3114
clients_data[key].items()}
3115
clients_data[key] = value
3117
value["client_structure"] = [
3119
if isinstance(s, bytes)
3121
value["client_structure"]]
3123
for k in ("name", "host"):
3124
if isinstance(value[k], bytes):
3125
value[k] = value[k].decode("utf-8")
3126
# old_client_settings
3128
old_client_settings = {
3129
(key.decode("utf-8")
3130
if isinstance(key, bytes)
3133
bytes_old_client_settings.items()}
3134
del bytes_old_client_settings
3136
for value in old_client_settings.values():
3137
if isinstance(value["host"], bytes):
3138
value["host"] = (value["host"]
2350
clients_data, old_client_settings = (pickle.load
3140
2352
os.remove(stored_state_path)
3141
2353
except IOError as e:
3142
if e.errno == errno.ENOENT:
3143
logger.warning("Could not load persistent state:"
3144
" {}".format(os.strerror(e.errno)))
3146
logger.critical("Could not load persistent state:",
2354
logger.warning("Could not load persistent state: {0}"
2356
if e.errno != errno.ENOENT:
3149
2358
except EOFError as e:
3150
2359
logger.warning("Could not load persistent state: "
2360
"EOFError: {0}".format(e))
3154
2362
with PGPEngine() as pgp:
3155
for client_name, client in clients_data.items():
3156
# Skip removed clients
3157
if client_name not in client_settings:
2363
for client_name, client in clients_data.iteritems():
3160
2364
# Decide which value to use after restoring saved state.
3161
2365
# We have three different values: Old config file,
3162
2366
# new config file, and saved state.
3222
2427
clients_data[client_name] = client_settings[client_name]
3224
2429
# Create all client objects
3225
for client_name, client in clients_data.items():
2430
for client_name, client in clients_data.iteritems():
3226
2431
tcp_server.clients[client_name] = client_class(
3229
server_settings=server_settings)
2432
name = client_name, settings = client)
3231
2434
if not tcp_server.clients:
3232
2435
logger.warning("No clients defined")
3235
if pidfile is not None:
3239
print(pid, file=pidfile)
3241
logger.error("Could not write to file %r with PID %d",
2441
pidfile.write(str(pid) + "\n".encode("utf-8"))
2444
logger.error("Could not write to file %r with PID %d",
2447
# "pidfile" was never created
3244
2449
del pidfilename
3246
for termsig in (signal.SIGHUP, signal.SIGTERM):
3247
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3248
lambda: main_loop.quit() and False)
2450
signal.signal(signal.SIGINT, signal.SIG_IGN)
2452
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2453
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3252
@alternate_dbus_interfaces(
3253
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3254
class MandosDBusService(DBusObjectWithObjectManager):
2456
class MandosDBusService(DBusObjectWithProperties):
3255
2457
"""A D-Bus proxy object"""
3257
2458
def __init__(self):
3258
2459
dbus.service.Object.__init__(self, bus, "/")
3260
2460
_interface = "se.recompile.Mandos"
2462
@dbus_interface_annotations(_interface)
2464
return { "org.freedesktop.DBus.Property"
2465
".EmitsChangedSignal":
3262
2468
@dbus.service.signal(_interface, signature="o")
3263
2469
def ClientAdded(self, objpath):
3267
2473
@dbus.service.signal(_interface, signature="ss")
3268
2474
def ClientNotFound(self, fingerprint, address):
3272
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3274
2478
@dbus.service.signal(_interface, signature="os")
3275
2479
def ClientRemoved(self, objpath, name):
3279
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3281
2483
@dbus.service.method(_interface, out_signature="ao")
3282
2484
def GetAllClients(self):
3284
return dbus.Array(c.dbus_object_path for c in
3285
tcp_server.clients.values())
3287
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2486
return dbus.Array(c.dbus_object_path
2488
tcp_server.clients.itervalues())
3289
2490
@dbus.service.method(_interface,
3290
2491
out_signature="a{oa{sv}}")
3291
2492
def GetAllClientsWithProperties(self):
3293
2494
return dbus.Dictionary(
3294
{c.dbus_object_path: c.GetAll(
3295
"se.recompile.Mandos.Client")
3296
for c in tcp_server.clients.values()},
2495
((c.dbus_object_path, c.GetAll(""))
2496
for c in tcp_server.clients.itervalues()),
3297
2497
signature="oa{sv}")
3299
2499
@dbus.service.method(_interface, in_signature="o")
3300
2500
def RemoveClient(self, object_path):
3302
for c in tcp_server.clients.values():
2502
for c in tcp_server.clients.itervalues():
3303
2503
if c.dbus_object_path == object_path:
3304
2504
del tcp_server.clients[c.name]
3305
2505
c.remove_from_connection()
3306
# Don't signal the disabling
2506
# Don't signal anything except ClientRemoved
3307
2507
c.disable(quiet=True)
3308
# Emit D-Bus signal for removal
3309
self.client_removed_signal(c)
2509
self.ClientRemoved(object_path, c.name)
3311
2511
raise KeyError(object_path)
3315
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3316
out_signature="a{oa{sa{sv}}}")
3317
def GetManagedObjects(self):
3319
return dbus.Dictionary(
3320
{client.dbus_object_path:
3322
{interface: client.GetAll(interface)
3324
client._get_all_interface_names()})
3325
for client in tcp_server.clients.values()})
3327
def client_added_signal(self, client):
3328
"""Send the new standard signal and the old signal"""
3330
# New standard signal
3331
self.InterfacesAdded(
3332
client.dbus_object_path,
3334
{interface: client.GetAll(interface)
3336
client._get_all_interface_names()}))
3338
self.ClientAdded(client.dbus_object_path)
3340
def client_removed_signal(self, client):
3341
"""Send the new standard signal and the old signal"""
3343
# New standard signal
3344
self.InterfacesRemoved(
3345
client.dbus_object_path,
3346
client._get_all_interface_names())
3348
self.ClientRemoved(client.dbus_object_path,
3351
mandos_dbus_service = MandosDBusService()
3353
# Save modules to variables to exempt the modules from being
3354
# unloaded before the function registered with atexit() is run.
3355
mp = multiprocessing
2515
class MandosDBusServiceTransitional(MandosDBusService):
2516
__metaclass__ = AlternateDBusNamesMetaclass
2517
mandos_dbus_service = MandosDBusServiceTransitional()
3359
2520
"Cleanup function; run on exit"
3363
mp.active_children()
2523
multiprocessing.active_children()
3365
2524
if not (tcp_server.clients or client_settings):
3368
2527
# Store client before exiting. Secrets are encrypted with key
3369
2528
# based on what config file has. If config file is
3370
2529
# removed/edited, old secret will thus be unrecovable.
3372
2531
with PGPEngine() as pgp:
3373
for client in tcp_server.clients.values():
2532
for client in tcp_server.clients.itervalues():
3374
2533
key = client_settings[client.name]["secret"]
3375
2534
client.encrypted_secret = pgp.encrypt(client.secret,
3377
2536
client_dict = {}
3379
2538
# A list of attributes that can not be pickled
3381
exclude = {"bus", "changedstate", "secret",
3382
"checker", "server_settings"}
3383
for name, typ in inspect.getmembers(dbus.service
2540
exclude = set(("bus", "changedstate", "secret",
2542
for name, typ in (inspect.getmembers
2543
(dbus.service.Object)):
3385
2544
exclude.add(name)
3387
2546
client_dict["encrypted_secret"] = (client
3388
2547
.encrypted_secret)
3389
2548
for attr in client.client_structure:
3390
2549
if attr not in exclude:
3391
2550
client_dict[attr] = getattr(client, attr)
3393
2552
clients[client.name] = client_dict
3394
2553
del client_settings[client.name]["secret"]
3397
with tempfile.NamedTemporaryFile(
3401
dir=os.path.dirname(stored_state_path),
3402
delete=False) as stored_state:
3403
pickle.dump((clients, client_settings), stored_state,
3405
tempname = stored_state.name
2556
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2559
(stored_state_path))
2560
with os.fdopen(tempfd, "wb") as stored_state:
2561
pickle.dump((clients, client_settings), stored_state)
3406
2562
os.rename(tempname, stored_state_path)
3407
2563
except (IOError, OSError) as e:
2564
logger.warning("Could not save persistent state: {0}"
3410
2568
os.remove(tempname)
3411
2569
except NameError:
3413
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
3414
logger.warning("Could not save persistent state: {}"
3415
.format(os.strerror(e.errno)))
3417
logger.warning("Could not save persistent state:",
2571
if e.errno not in set((errno.ENOENT, errno.EACCES,
3421
2575
# Delete all clients, and settings from config
3422
2576
while tcp_server.clients:
3423
2577
name, client = tcp_server.clients.popitem()
3425
2579
client.remove_from_connection()
3426
# Don't signal the disabling
2580
# Don't signal anything except ClientRemoved
3427
2581
client.disable(quiet=True)
3428
# Emit D-Bus signal for removal
3430
mandos_dbus_service.client_removed_signal(client)
2584
mandos_dbus_service.ClientRemoved(client
3431
2587
client_settings.clear()
3433
2589
atexit.register(cleanup)
3435
for client in tcp_server.clients.values():
2591
for client in tcp_server.clients.itervalues():
3437
# Emit D-Bus signal for adding
3438
mandos_dbus_service.client_added_signal(client)
2594
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3439
2595
# Need to initiate checking of clients
3440
2596
if client.enabled:
3441
2597
client.init_checker()
3443
2599
tcp_server.enable()
3444
2600
tcp_server.server_activate()
3446
2602
# Find out what port we got
3448
service.port = tcp_server.socket.getsockname()[1]
2603
service.port = tcp_server.socket.getsockname()[1]
3450
2605
logger.info("Now listening on address %r, port %d,"
3451
" flowinfo %d, scope_id %d",
3452
*tcp_server.socket.getsockname())
2606
" flowinfo %d, scope_id %d"
2607
% tcp_server.socket.getsockname())
3454
logger.info("Now listening on address %r, port %d",
3455
*tcp_server.socket.getsockname())
3457
# service.interface = tcp_server.socket.getsockname()[3]
2609
logger.info("Now listening on address %r, port %d"
2610
% tcp_server.socket.getsockname())
2612
#service.interface = tcp_server.socket.getsockname()[3]
3461
# From the Avahi example code
3464
except dbus.exceptions.DBusException as error:
3465
logger.critical("D-Bus Exception", exc_info=error)
3468
# End of Avahi example code
3470
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3471
lambda *args, **kwargs:
3472
(tcp_server.handle_request
3473
(*args[2:], **kwargs) or True))
2615
# From the Avahi example code
2618
except dbus.exceptions.DBusException as error:
2619
logger.critical("DBusException: %s", error)
2622
# End of Avahi example code
2624
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2625
lambda *args, **kwargs:
2626
(tcp_server.handle_request
2627
(*args[2:], **kwargs) or True))
3475
2629
logger.debug("Starting main loop")
3476
2630
main_loop.run()
3477
2631
except AvahiError as error:
3478
logger.critical("Avahi Error", exc_info=error)
2632
logger.critical("AvahiError: %s", error)
3481
2635
except KeyboardInterrupt: