65
import cPickle as pickle
69
import cPickle as pickle
66
72
import multiprocessing
74
81
import dbus.service
82
from gi.repository import GLib
77
83
from dbus.mainloop.glib import DBusGMainLoop
80
86
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:
84
93
SO_BINDTODEVICE = socket.SO_BINDTODEVICE
85
94
except AttributeError:
96
# This is where SO_BINDTODEVICE was up to and including Python
87
98
from IN import SO_BINDTODEVICE
88
99
except ImportError:
89
SO_BINDTODEVICE = None
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:
92
118
stored_state_file = "clients.pickle"
94
120
logger = logging.getLogger()
95
syslogger = (logging.handlers.SysLogHandler
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
97
address = str("/dev/log")))
100
if_nametoindex = (ctypes.cdll.LoadLibrary
101
(ctypes.util.find_library("c"))
124
if_nametoindex = ctypes.cdll.LoadLibrary(
125
ctypes.util.find_library("c")).if_nametoindex
103
126
except (OSError, AttributeError):
104
128
def if_nametoindex(interface):
105
129
"Get an interface index the hard way, i.e. using fcntl()"
106
130
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
107
131
with contextlib.closing(socket.socket()) as s:
108
132
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
109
struct.pack(str("16s16x"),
111
interface_index = struct.unpack(str("I"),
133
struct.pack(b"16s16x", interface))
134
interface_index = struct.unpack("I", ifreq[16:20])[0]
113
135
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__,
116
154
def initlogger(debug, level=logging.WARNING):
117
155
"""init logger and add loglevel"""
158
syslogger = (logging.handlers.SysLogHandler(
159
facility=logging.handlers.SysLogHandler.LOG_DAEMON,
119
161
syslogger.setFormatter(logging.Formatter
120
162
('Mandos [%(process)d]: %(levelname)s:'
122
164
logger.addHandler(syslogger)
125
167
console = logging.StreamHandler()
126
168
console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
179
235
.replace(b"\n", b"\\n")
180
236
.replace(b"\0", b"\\x00"))
183
239
def encrypt(self, data, password):
184
240
passphrase = self.password_encode(password)
185
with tempfile.NamedTemporaryFile(dir=self.tempdir
241
with tempfile.NamedTemporaryFile(
242
dir=self.tempdir) as passfile:
187
243
passfile.write(passphrase)
189
proc = subprocess.Popen(['gpg', '--symmetric',
245
proc = subprocess.Popen([self.gpg, '--symmetric',
190
246
'--passphrase-file',
192
248
+ self.gnupgargs,
193
stdin = subprocess.PIPE,
194
stdout = subprocess.PIPE,
195
stderr = subprocess.PIPE)
196
ciphertext, err = proc.communicate(input = data)
249
stdin=subprocess.PIPE,
250
stdout=subprocess.PIPE,
251
stderr=subprocess.PIPE)
252
ciphertext, err = proc.communicate(input=data)
197
253
if proc.returncode != 0:
198
254
raise PGPError(err)
199
255
return ciphertext
201
257
def decrypt(self, data, password):
202
258
passphrase = self.password_encode(password)
203
with tempfile.NamedTemporaryFile(dir = self.tempdir
259
with tempfile.NamedTemporaryFile(
260
dir=self.tempdir) as passfile:
205
261
passfile.write(passphrase)
207
proc = subprocess.Popen(['gpg', '--decrypt',
263
proc = subprocess.Popen([self.gpg, '--decrypt',
208
264
'--passphrase-file',
210
266
+ self.gnupgargs,
211
stdin = subprocess.PIPE,
212
stdout = subprocess.PIPE,
213
stderr = subprocess.PIPE)
214
decrypted_plaintext, err = proc.communicate(input
267
stdin=subprocess.PIPE,
268
stdout=subprocess.PIPE,
269
stderr=subprocess.PIPE)
270
decrypted_plaintext, err = proc.communicate(input=data)
216
271
if proc.returncode != 0:
217
272
raise PGPError(err)
218
273
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
221
303
class AvahiError(Exception):
222
304
def __init__(self, value, *args, **kwargs):
223
305
self.value = value
224
super(AvahiError, self).__init__(value, *args, **kwargs)
225
def __unicode__(self):
226
return unicode(repr(self.value))
306
return super(AvahiError, self).__init__(value, *args,
228
310
class AvahiServiceError(AvahiError):
231
314
class AvahiGroupError(AvahiError):
235
318
class AvahiService(object):
236
319
"""An Avahi (Zeroconf) service.
239
322
interface: integer; avahi.IF_UNSPEC or an interface index.
240
323
Used to optionally bind to the specified interface.
383
488
follow_name_owner_changes=True),
384
489
avahi.DBUS_INTERFACE_SERVER)
385
490
self.server.connect_to_signal("StateChanged",
386
self.server_state_changed)
491
self.server_state_changed)
387
492
self.server_state_changed(self.server.GetState())
390
495
class AvahiServiceToSyslog(AvahiService):
496
def rename(self, *args, **kwargs):
392
497
"""Add the new name to the syslog messages"""
393
ret = AvahiService.rename(self)
394
syslogger.setFormatter(logging.Formatter
395
('Mandos ({0}) [%(process)d]:'
396
' %(levelname)s: %(message)s'
498
ret = AvahiService.rename(self, *args, **kwargs)
499
syslogger.setFormatter(logging.Formatter(
500
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
401
def timedelta_to_milliseconds(td):
402
"Convert a datetime.timedelta() to milliseconds"
403
return ((td.days * 24 * 60 * 60 * 1000)
404
+ (td.seconds * 1000)
405
+ (td.microseconds // 1000))
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))
408
779
class Client(object):
409
780
"""A representation of a client host served by this server.
412
783
approved: bool(); 'None' if not yet approved/disapproved
413
784
approval_delay: datetime.timedelta(); Time to wait for approval
601
959
logger.info("Disabling client %s", self.name)
602
960
if getattr(self, "disable_initiator_tag", None) is not None:
603
gobject.source_remove(self.disable_initiator_tag)
961
GLib.source_remove(self.disable_initiator_tag)
604
962
self.disable_initiator_tag = None
605
963
self.expires = None
606
964
if getattr(self, "checker_initiator_tag", None) is not None:
607
gobject.source_remove(self.checker_initiator_tag)
965
GLib.source_remove(self.checker_initiator_tag)
608
966
self.checker_initiator_tag = None
609
967
self.stop_checker()
610
968
self.enabled = False
612
970
self.send_changedstate()
613
# Do not run this again if called by a gobject.timeout_add
971
# Do not run this again if called by a GLib.timeout_add
616
974
def __del__(self):
619
977
def init_checker(self):
620
978
# Schedule a new checker to be started an 'interval' from now,
621
979
# and every interval from then on.
622
980
if self.checker_initiator_tag is not None:
623
gobject.source_remove(self.checker_initiator_tag)
624
self.checker_initiator_tag = (gobject.timeout_add
625
(self.interval_milliseconds(),
981
GLib.source_remove(self.checker_initiator_tag)
982
self.checker_initiator_tag = GLib.timeout_add(
983
int(self.interval.total_seconds() * 1000),
627
985
# Schedule a disable() when 'timeout' has passed
628
986
if self.disable_initiator_tag is not None:
629
gobject.source_remove(self.disable_initiator_tag)
630
self.disable_initiator_tag = (gobject.timeout_add
631
(self.timeout_milliseconds(),
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)
633
990
# Also start a new checker *right now*.
634
991
self.start_checker()
636
def checker_callback(self, pid, condition, command):
993
def checker_callback(self, source, condition, connection,
637
995
"""The checker has completed, so take appropriate actions."""
638
996
self.checker_callback_tag = None
639
997
self.checker = None
640
if os.WIFEXITED(condition):
641
self.last_checker_status = os.WEXITSTATUS(condition)
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
642
1005
if self.last_checker_status == 0:
643
1006
logger.info("Checker for %(name)s succeeded",
645
1008
self.checked_ok()
647
logger.info("Checker for %(name)s failed",
1010
logger.info("Checker for %(name)s failed", vars(self))
650
1012
self.last_checker_status = -1
1013
self.last_checker_signal = -returncode
651
1014
logger.warning("Checker for %(name)s crashed?",
654
1018
def checked_ok(self):
655
1019
"""Assert that the client has been seen, alive and well."""
656
1020
self.last_checked_ok = datetime.datetime.utcnow()
657
1021
self.last_checker_status = 0
1022
self.last_checker_signal = None
658
1023
self.bump_timeout()
660
1025
def bump_timeout(self, timeout=None):
661
1026
"""Bump up the timeout for this client."""
662
1027
if timeout is None:
663
1028
timeout = self.timeout
664
1029
if self.disable_initiator_tag is not None:
665
gobject.source_remove(self.disable_initiator_tag)
1030
GLib.source_remove(self.disable_initiator_tag)
666
1031
self.disable_initiator_tag = None
667
1032
if getattr(self, "enabled", False):
668
self.disable_initiator_tag = (gobject.timeout_add
669
(timedelta_to_milliseconds
670
(timeout), self.disable))
1033
self.disable_initiator_tag = GLib.timeout_add(
1034
int(timeout.total_seconds() * 1000), self.disable)
671
1035
self.expires = datetime.datetime.utcnow() + timeout
673
1037
def need_approval(self):
674
1038
self.last_approval_request = datetime.datetime.utcnow()
676
1040
def start_checker(self):
677
1041
"""Start a new checker subprocess if one is not running.
679
1043
If a checker already exists, leave it running and do
681
1045
# The reason for not killing a running checker is that if we
686
1050
# checkers alone, the checker would have to take more time
687
1051
# than 'timeout' for the client to be disabled, which is as it
690
# If a checker exists, make sure it is not a zombie
692
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
693
except (AttributeError, OSError) as error:
694
if (isinstance(error, OSError)
695
and error.errno != errno.ECHILD):
699
logger.warning("Checker was a zombie")
700
gobject.source_remove(self.checker_callback_tag)
701
self.checker_callback(pid, status,
702
self.current_checker_command)
1054
if self.checker is not None and not self.checker.is_alive():
1055
logger.warning("Checker was not alive; joining")
703
1058
# Start a new checker if needed
704
1059
if self.checker is None:
705
1060
# Escape attributes for the shell
706
escaped_attrs = dict(
707
(attr, re.escape(unicode(getattr(self, attr))))
709
self.runtime_expansions)
1062
attr: re.escape(str(getattr(self, attr)))
1063
for attr in self.runtime_expansions}
711
1065
command = self.checker_command % escaped_attrs
712
1066
except TypeError as error:
713
1067
logger.error('Could not format string "%s"',
714
self.checker_command, exc_info=error)
715
return True # Try again later
1068
self.checker_command,
1070
return True # Try again later
716
1071
self.current_checker_command = command
718
logger.info("Starting checker %r for %s",
720
# We don't need to redirect stdout and stderr, since
721
# in normal mode, that is already done by daemon(),
722
# and in debug mode we don't want to. (Stdin is
723
# always replaced by /dev/null.)
724
# The exception is when not debugging but nevertheless
725
# running in the foreground; use the previously
728
if (not self.server_settings["debug"]
729
and self.server_settings["foreground"]):
730
popen_args.update({"stdout": wnull,
732
self.checker = subprocess.Popen(command,
736
except OSError as error:
737
logger.error("Failed to start subprocess",
740
self.checker_callback_tag = (gobject.child_watch_add
742
self.checker_callback,
744
# The checker may have completed before the gobject
745
# watch was added. Check for this.
747
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
748
except OSError as error:
749
if error.errno == errno.ECHILD:
750
# This should never happen
751
logger.error("Child process vanished",
756
gobject.source_remove(self.checker_callback_tag)
757
self.checker_callback(pid, status, command)
758
# Re-run this periodically if run by gobject.timeout_add
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
761
1100
def stop_checker(self):
762
1101
"""Force the checker process, if any, to stop."""
763
1102
if self.checker_callback_tag:
764
gobject.source_remove(self.checker_callback_tag)
1103
GLib.source_remove(self.checker_callback_tag)
765
1104
self.checker_callback_tag = None
766
1105
if getattr(self, "checker", None) is None:
768
1107
logger.debug("Stopping checker for %(name)s", vars(self))
770
self.checker.terminate()
772
#if self.checker.poll() is None:
773
# self.checker.kill()
774
except OSError as error:
775
if error.errno != errno.ESRCH: # No such process
1108
self.checker.terminate()
777
1109
self.checker = None
780
def dbus_service_property(dbus_interface, signature="v",
781
access="readwrite", byte_arrays=False):
1112
def dbus_service_property(dbus_interface,
782
1116
"""Decorators for marking methods of a DBusObjectWithProperties to
783
1117
become properties on the D-Bus.
785
1119
The decorated method will be called with no arguments by "Get"
786
1120
and with one argument by "Set".
788
1122
The parameters, where they are supported, are the same as
789
1123
dbus.service.method, except there is only "signature", since the
790
1124
type from Get() and the type sent to Set() is the same.
866
class DBusObjectWithProperties(dbus.service.Object):
867
"""A D-Bus object with properties.
869
Classes inheriting from this can use the dbus_service_property
870
decorator to expose methods as D-Bus properties. It exposes the
871
standard Get(), Set(), and GetAll() methods on the D-Bus.
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.
875
1215
def _is_dbus_thing(thing):
876
1216
"""Returns a function testing if an attribute is a D-Bus thing
878
1218
If called like _is_dbus_thing("method") it returns a function
879
1219
suitable for use as predicate to inspect.getmembers().
881
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1221
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
884
1224
def _get_all_dbus_things(self, thing):
885
1225
"""Returns a generator of (name, attribute) pairs
887
return ((getattr(athing.__get__(self), "_dbus_name",
1227
return ((getattr(athing.__get__(self), "_dbus_name", name),
889
1228
athing.__get__(self))
890
1229
for cls in self.__class__.__mro__
891
1230
for name, athing in
892
inspect.getmembers(cls,
893
self._is_dbus_thing(thing)))
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.
895
1304
def _get_dbus_property(self, interface_name, property_name):
896
1305
"""Returns a bound method if one exists which is a D-Bus
897
1306
property with the specified name and interface.
899
for cls in self.__class__.__mro__:
900
for name, value in (inspect.getmembers
902
self._is_dbus_thing("property"))):
1308
for cls in self.__class__.__mro__:
1309
for name, value in inspect.getmembers(
1310
cls, self._is_dbus_thing("property")):
903
1311
if (value._dbus_name == property_name
904
1312
and value._dbus_interface == interface_name):
905
1313
return value.__get__(self)
907
1315
# No such property
908
raise DBusPropertyNotFound(self.dbus_object_path + ":"
909
+ interface_name + "."
912
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
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,
913
1330
out_signature="v")
914
1331
def Get(self, interface_name, property_name):
915
1332
"""Standard D-Bus property Get() method, see D-Bus standard.
1045
1461
return xmlstring
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",
1048
1535
def datetime_to_dbus(dt, variant_level=0):
1049
1536
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1051
return dbus.String("", variant_level = variant_level)
1052
return dbus.String(dt.isoformat(),
1053
variant_level=variant_level)
1538
return dbus.String("", variant_level=variant_level)
1539
return dbus.String(dt.isoformat(), variant_level=variant_level)
1056
1542
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1086
1573
# Ignore non-D-Bus attributes, and D-Bus attributes
1087
1574
# with the wrong interface name
1088
1575
if (not hasattr(attribute, "_dbus_interface")
1089
or not attribute._dbus_interface
1090
.startswith(orig_interface_name)):
1576
or not attribute._dbus_interface.startswith(
1577
orig_interface_name)):
1092
1579
# Create an alternate D-Bus interface name based on
1093
1580
# the current name
1094
alt_interface = (attribute._dbus_interface
1095
.replace(orig_interface_name,
1096
alt_interface_name))
1581
alt_interface = attribute._dbus_interface.replace(
1582
orig_interface_name, alt_interface_name)
1097
1583
interface_names.add(alt_interface)
1098
1584
# Is this a D-Bus signal?
1099
1585
if getattr(attribute, "_dbus_is_signal", False):
1100
1586
# Extract the original non-method undecorated
1101
1587
# function by black magic
1102
nonmethod_func = (dict(
1588
if sys.version_info.major == 2:
1589
nonmethod_func = (dict(
1103
1590
zip(attribute.func_code.co_freevars,
1104
attribute.__closure__))["func"]
1591
attribute.__closure__))
1592
["func"].cell_contents)
1594
nonmethod_func = (dict(
1595
zip(attribute.__code__.co_freevars,
1596
attribute.__closure__))
1597
["func"].cell_contents)
1106
1598
# Create a new, but exactly alike, function
1107
1599
# object, and decorate it to be a new D-Bus signal
1108
1600
# with the alternate D-Bus interface name
1109
new_function = (dbus.service.signal
1111
attribute._dbus_signature)
1112
(types.FunctionType(
1113
nonmethod_func.func_code,
1114
nonmethod_func.func_globals,
1115
nonmethod_func.func_name,
1116
nonmethod_func.func_defaults,
1117
nonmethod_func.func_closure)))
1601
new_function = copy_function(nonmethod_func)
1602
new_function = (dbus.service.signal(
1604
attribute._dbus_signature)(new_function))
1118
1605
# Copy annotations, if any
1120
new_function._dbus_annotations = (
1121
dict(attribute._dbus_annotations))
1607
new_function._dbus_annotations = dict(
1608
attribute._dbus_annotations)
1122
1609
except AttributeError:
1124
1612
# Define a creator of a function to call both the
1125
1613
# original and alternate functions, so both the
1126
1614
# original and alternate signals gets sent when
1216
1697
if interface_names:
1217
1698
# Replace the class with a new subclass of it with
1218
1699
# methods, signals, etc. as created above.
1219
cls = type(b"{0}Alternate".format(cls.__name__),
1700
if sys.version_info.major == 2:
1701
cls = type(b"{}Alternate".format(cls.__name__),
1704
cls = type("{}Alternate".format(cls.__name__),
1225
1711
@alternate_dbus_interfaces({"se.recompile.Mandos":
1226
"se.bsnet.fukt.Mandos"})
1712
"se.bsnet.fukt.Mandos"})
1227
1713
class ClientDBus(Client, DBusObjectWithProperties):
1228
1714
"""A Client class using D-Bus
1231
1717
dbus_object_path: dbus.ObjectPath
1232
1718
bus: dbus.SystemBus()
1235
1721
runtime_expansions = (Client.runtime_expansions
1236
+ ("dbus_object_path",))
1722
+ ("dbus_object_path", ))
1724
_interface = "se.recompile.Mandos.Client"
1238
1726
# dbus.service.Object doesn't use super(), so we can't either.
1240
def __init__(self, bus = None, *args, **kwargs):
1728
def __init__(self, bus=None, *args, **kwargs):
1242
1730
Client.__init__(self, *args, **kwargs)
1243
1731
# Only now, when this client is initialized, can it show up on
1245
client_object_name = unicode(self.name).translate(
1733
client_object_name = str(self.name).translate(
1246
1734
{ord("."): ord("_"),
1247
1735
ord("-"): ord("_")})
1248
self.dbus_object_path = (dbus.ObjectPath
1249
("/clients/" + client_object_name))
1736
self.dbus_object_path = dbus.ObjectPath(
1737
"/clients/" + client_object_name)
1250
1738
DBusObjectWithProperties.__init__(self, self.bus,
1251
1739
self.dbus_object_path)
1253
def notifychangeproperty(transform_func,
1254
dbus_name, type_func=lambda x: x,
1741
def notifychangeproperty(transform_func, dbus_name,
1742
type_func=lambda x: x,
1744
invalidate_only=False,
1745
_interface=_interface):
1256
1746
""" Modify a variable so that it's a property which announces
1257
1747
its changes to DBus.
1259
1749
transform_fun: Function that takes a value and a variant_level
1260
1750
and transforms it to a D-Bus type.
1261
1751
dbus_name: D-Bus name of the variable
1326
1827
if hasattr(DBusObjectWithProperties, "__del__"):
1327
1828
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1328
1829
Client.__del__(self, *args, **kwargs)
1330
def checker_callback(self, pid, condition, command,
1332
self.checker_callback_tag = None
1334
if os.WIFEXITED(condition):
1335
exitstatus = os.WEXITSTATUS(condition)
1831
def checker_callback(self, source, condition,
1832
connection, command, *args, **kwargs):
1833
ret = Client.checker_callback(self, source, condition,
1834
connection, command, *args,
1836
exitstatus = self.last_checker_status
1336
1838
# Emit D-Bus signal
1337
1839
self.CheckerCompleted(dbus.Int16(exitstatus),
1338
dbus.Int64(condition),
1840
# This is specific to GNU libC
1841
dbus.Int64(exitstatus << 8),
1339
1842
dbus.String(command))
1341
1844
# Emit D-Bus signal
1342
1845
self.CheckerCompleted(dbus.Int16(-1),
1343
dbus.Int64(condition),
1847
# This is specific to GNU libC
1849
| self.last_checker_signal),
1344
1850
dbus.String(command))
1346
return Client.checker_callback(self, pid, condition, command,
1349
1853
def start_checker(self, *args, **kwargs):
1350
old_checker = self.checker
1351
if self.checker is not None:
1352
old_checker_pid = self.checker.pid
1354
old_checker_pid = None
1854
old_checker_pid = getattr(self.checker, "pid", None)
1355
1855
r = Client.start_checker(self, *args, **kwargs)
1356
1856
# Only if new checker process was started
1357
1857
if (self.checker is not None
1409
1903
server to mandos-client
1413
1907
# Rejected - signal
1414
1908
@dbus.service.signal(_interface, signature="s")
1415
1909
def Rejected(self, reason):
1419
1913
# NeedApproval - signal
1420
1914
@dbus.service.signal(_interface, signature="tb")
1421
1915
def NeedApproval(self, timeout, default):
1423
1917
return self.need_approval()
1427
1921
# Approve - method
1428
1922
@dbus.service.method(_interface, in_signature="b")
1429
1923
def Approve(self, value):
1430
1924
self.approve(value)
1432
1926
# CheckedOK - method
1433
1927
@dbus.service.method(_interface)
1434
1928
def CheckedOK(self):
1435
1929
self.checked_ok()
1437
1931
# Enable - method
1932
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1438
1933
@dbus.service.method(_interface)
1439
1934
def Enable(self):
1443
1938
# StartChecker - method
1939
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1444
1940
@dbus.service.method(_interface)
1445
1941
def StartChecker(self):
1447
1943
self.start_checker()
1449
1945
# Disable - method
1946
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1450
1947
@dbus.service.method(_interface)
1451
1948
def Disable(self):
1455
1952
# StopChecker - method
1953
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1456
1954
@dbus.service.method(_interface)
1457
1955
def StopChecker(self):
1458
1956
self.stop_checker()
1462
1960
# ApprovalPending - property
1463
1961
@dbus_service_property(_interface, signature="b", access="read")
1464
1962
def ApprovalPending_dbus_property(self):
1465
1963
return dbus.Boolean(bool(self.approvals_pending))
1467
1965
# ApprovedByDefault - property
1468
@dbus_service_property(_interface, signature="b",
1966
@dbus_service_property(_interface,
1469
1968
access="readwrite")
1470
1969
def ApprovedByDefault_dbus_property(self, value=None):
1471
1970
if value is None: # get
1472
1971
return dbus.Boolean(self.approved_by_default)
1473
1972
self.approved_by_default = bool(value)
1475
1974
# ApprovalDelay - property
1476
@dbus_service_property(_interface, signature="t",
1975
@dbus_service_property(_interface,
1477
1977
access="readwrite")
1478
1978
def ApprovalDelay_dbus_property(self, value=None):
1479
1979
if value is None: # get
1480
return dbus.UInt64(self.approval_delay_milliseconds())
1980
return dbus.UInt64(self.approval_delay.total_seconds()
1481
1982
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1483
1984
# ApprovalDuration - property
1484
@dbus_service_property(_interface, signature="t",
1985
@dbus_service_property(_interface,
1485
1987
access="readwrite")
1486
1988
def ApprovalDuration_dbus_property(self, value=None):
1487
1989
if value is None: # get
1488
return dbus.UInt64(timedelta_to_milliseconds(
1489
self.approval_duration))
1990
return dbus.UInt64(self.approval_duration.total_seconds()
1490
1992
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1492
1994
# Name - property
1996
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1493
1997
@dbus_service_property(_interface, signature="s", access="read")
1494
1998
def Name_dbus_property(self):
1495
1999
return dbus.String(self.name)
1497
2001
# Fingerprint - property
2003
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1498
2004
@dbus_service_property(_interface, signature="s", access="read")
1499
2005
def Fingerprint_dbus_property(self):
1500
2006
return dbus.String(self.fingerprint)
1502
2008
# Host - property
1503
@dbus_service_property(_interface, signature="s",
2009
@dbus_service_property(_interface,
1504
2011
access="readwrite")
1505
2012
def Host_dbus_property(self, value=None):
1506
2013
if value is None: # get
1507
2014
return dbus.String(self.host)
1508
self.host = unicode(value)
2015
self.host = str(value)
1510
2017
# Created - property
2019
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1511
2020
@dbus_service_property(_interface, signature="s", access="read")
1512
2021
def Created_dbus_property(self):
1513
2022
return datetime_to_dbus(self.created)
1515
2024
# LastEnabled - property
1516
2025
@dbus_service_property(_interface, signature="s", access="read")
1517
2026
def LastEnabled_dbus_property(self):
1518
2027
return datetime_to_dbus(self.last_enabled)
1520
2029
# Enabled - property
1521
@dbus_service_property(_interface, signature="b",
2030
@dbus_service_property(_interface,
1522
2032
access="readwrite")
1523
2033
def Enabled_dbus_property(self, value=None):
1524
2034
if value is None: # get
1572
2083
if (getattr(self, "disable_initiator_tag", None)
1575
gobject.source_remove(self.disable_initiator_tag)
1576
self.disable_initiator_tag = (
1577
gobject.timeout_add(
1578
timedelta_to_milliseconds(self.expires - now),
2086
GLib.source_remove(self.disable_initiator_tag)
2087
self.disable_initiator_tag = GLib.timeout_add(
2088
int((self.expires - now).total_seconds() * 1000),
1581
2091
# ExtendedTimeout - property
1582
@dbus_service_property(_interface, signature="t",
2092
@dbus_service_property(_interface,
1583
2094
access="readwrite")
1584
2095
def ExtendedTimeout_dbus_property(self, value=None):
1585
2096
if value is None: # get
1586
return dbus.UInt64(self.extended_timeout_milliseconds())
2097
return dbus.UInt64(self.extended_timeout.total_seconds()
1587
2099
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1589
2101
# Interval - property
1590
@dbus_service_property(_interface, signature="t",
2102
@dbus_service_property(_interface,
1591
2104
access="readwrite")
1592
2105
def Interval_dbus_property(self, value=None):
1593
2106
if value is None: # get
1594
return dbus.UInt64(self.interval_milliseconds())
2107
return dbus.UInt64(self.interval.total_seconds() * 1000)
1595
2108
self.interval = datetime.timedelta(0, 0, 0, value)
1596
2109
if getattr(self, "checker_initiator_tag", None) is None:
1598
2111
if self.enabled:
1599
2112
# Reschedule checker run
1600
gobject.source_remove(self.checker_initiator_tag)
1601
self.checker_initiator_tag = (gobject.timeout_add
1602
(value, self.start_checker))
1603
self.start_checker() # Start one now, too
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
1605
2118
# Checker - property
1606
@dbus_service_property(_interface, signature="s",
2119
@dbus_service_property(_interface,
1607
2121
access="readwrite")
1608
2122
def Checker_dbus_property(self, value=None):
1609
2123
if value is None: # get
1610
2124
return dbus.String(self.checker_command)
1611
self.checker_command = unicode(value)
2125
self.checker_command = str(value)
1613
2127
# CheckerRunning - property
1614
@dbus_service_property(_interface, signature="b",
2128
@dbus_service_property(_interface,
1615
2130
access="readwrite")
1616
2131
def CheckerRunning_dbus_property(self, value=None):
1617
2132
if value is None: # get
1664
2189
class ClientHandler(socketserver.BaseRequestHandler, object):
1665
2190
"""A class to handle client connections.
1667
2192
Instantiated once for each connection to handle it.
1668
2193
Note: This will run in its own forked process."""
1670
2195
def handle(self):
1671
2196
with contextlib.closing(self.server.child_pipe) as child_pipe:
1672
2197
logger.info("TCP connection from: %s",
1673
unicode(self.client_address))
2198
str(self.client_address))
1674
2199
logger.debug("Pipe FD: %d",
1675
2200
self.server.child_pipe.fileno())
1677
session = (gnutls.connection
1678
.ClientSession(self.request,
1680
.X509Credentials()))
1682
# Note: gnutls.connection.X509Credentials is really a
1683
# generic GnuTLS certificate credentials object so long as
1684
# no X.509 keys are added to it. Therefore, we can use it
1685
# here despite using OpenPGP certificates.
1687
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1688
# "+AES-256-CBC", "+SHA1",
1689
# "+COMP-NULL", "+CTYPE-OPENPGP",
2202
session = gnutls.ClientSession(self.request)
2204
# priority = ':'.join(("NONE", "+VERS-TLS1.1",
2205
# "+AES-256-CBC", "+SHA1",
2206
# "+COMP-NULL", "+CTYPE-OPENPGP",
1691
2208
# Use a fallback default, since this MUST be set.
1692
2209
priority = self.server.gnutls_priority
1693
2210
if priority is None:
1694
2211
priority = "NORMAL"
1695
(gnutls.library.functions
1696
.gnutls_priority_set_direct(session._c_object,
2212
gnutls.priority_set_direct(session._c_object,
2213
priority.encode("utf-8"),
1699
2216
# Start communication using the Mandos protocol
1700
2217
# Get protocol number
1701
2218
line = self.request.makefile().readline()
1702
2219
logger.debug("Protocol version: %r", line)
1704
2221
if int(line.strip().split()[0]) > 1:
2222
raise RuntimeError(line)
1706
2223
except (ValueError, IndexError, RuntimeError) as error:
1707
2224
logger.error("Unknown protocol version: %s", error)
1710
2227
# Start GnuTLS connection
1712
2229
session.handshake()
1713
except gnutls.errors.GNUTLSError as error:
2230
except gnutls.Error as error:
1714
2231
logger.warning("Handshake failed: %s", error)
1715
2232
# Do not run session.bye() here: the session is not
1716
2233
# established. Just abandon the request.
1718
2235
logger.debug("Handshake succeeded")
1720
2237
approval_required = False
1723
fpr = self.fingerprint(self.peer_certificate
1726
gnutls.errors.GNUTLSError) as error:
2240
fpr = self.fingerprint(
2241
self.peer_certificate(session))
2242
except (TypeError, gnutls.Error) as error:
1727
2243
logger.warning("Bad certificate: %s", error)
1729
2245
logger.debug("Fingerprint: %s", fpr)
1732
2248
client = ProxyClient(child_pipe, fpr,
1733
2249
self.client_address)
1734
2250
except KeyError:
1737
2253
if client.approval_delay:
1738
2254
delay = client.approval_delay
1739
2255
client.approvals_pending += 1
1740
2256
approval_required = True
1743
2259
if not client.enabled:
1744
2260
logger.info("Client %s is disabled",
1746
2262
if self.server.use_dbus:
1747
2263
# Emit D-Bus signal
1748
2264
client.Rejected("Disabled")
1751
2267
if client.approved or not client.approval_delay:
1752
#We are approved or approval is disabled
2268
# We are approved or approval is disabled
1754
2270
elif client.approved is None:
1755
2271
logger.info("Client %s needs approval",
1790
2304
delay -= time2 - time
1793
while sent_size < len(client.secret):
1795
sent = session.send(client.secret[sent_size:])
1796
except gnutls.errors.GNUTLSError as error:
1797
logger.warning("gnutls send failed",
1800
logger.debug("Sent: %d, remaining: %d",
1801
sent, len(client.secret)
1802
- (sent_size + sent))
2307
session.send(client.secret)
2308
except gnutls.Error as error:
2309
logger.warning("gnutls send failed",
1805
2313
logger.info("Sending secret to %s", client.name)
1806
2314
# bump the timeout using extended_timeout
1807
2315
client.bump_timeout(client.extended_timeout)
1808
2316
if self.server.use_dbus:
1809
2317
# Emit D-Bus signal
1810
2318
client.GotSecret()
1813
2321
if approval_required:
1814
2322
client.approvals_pending -= 1
1817
except gnutls.errors.GNUTLSError as error:
2325
except gnutls.Error as error:
1818
2326
logger.warning("GnuTLS bye failed",
1819
2327
exc_info=error)
1822
2330
def peer_certificate(session):
1823
2331
"Return the peer's OpenPGP certificate as a bytestring"
1824
2332
# If not an OpenPGP certificate...
1825
if (gnutls.library.functions
1826
.gnutls_certificate_type_get(session._c_object)
1827
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1828
# ...do the normal thing
1829
return session.peer_certificate
2333
if (gnutls.certificate_type_get(session._c_object)
2334
!= gnutls.CRT_OPENPGP):
2335
# ...return invalid data
1830
2337
list_size = ctypes.c_uint(1)
1831
cert_list = (gnutls.library.functions
1832
.gnutls_certificate_get_peers
2338
cert_list = (gnutls.certificate_get_peers
1833
2339
(session._c_object, ctypes.byref(list_size)))
1834
2340
if not bool(cert_list) and list_size.value != 0:
1835
raise gnutls.errors.GNUTLSError("error getting peer"
2341
raise gnutls.Error("error getting peer certificate")
1837
2342
if list_size.value == 0:
1839
2344
cert = cert_list[0]
1840
2345
return ctypes.string_at(cert.data, cert.size)
1843
2348
def fingerprint(openpgp):
1844
2349
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1845
2350
# New GnuTLS "datum" with the OpenPGP public key
1846
datum = (gnutls.library.types
1847
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1850
ctypes.c_uint(len(openpgp))))
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)))
1851
2355
# New empty GnuTLS certificate
1852
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1853
(gnutls.library.functions
1854
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2356
crt = gnutls.openpgp_crt_t()
2357
gnutls.openpgp_crt_init(ctypes.byref(crt))
1855
2358
# Import the OpenPGP public key into the certificate
1856
(gnutls.library.functions
1857
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1858
gnutls.library.constants
1859
.GNUTLS_OPENPGP_FMT_RAW))
2359
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2360
gnutls.OPENPGP_FMT_RAW)
1860
2361
# Verify the self signature in the key
1861
2362
crtverify = ctypes.c_uint()
1862
(gnutls.library.functions
1863
.gnutls_openpgp_crt_verify_self(crt, 0,
1864
ctypes.byref(crtverify)))
2363
gnutls.openpgp_crt_verify_self(crt, 0,
2364
ctypes.byref(crtverify))
1865
2365
if crtverify.value != 0:
1866
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1867
raise (gnutls.errors.CertificateSecurityError
2366
gnutls.openpgp_crt_deinit(crt)
2367
raise gnutls.CertificateSecurityError("Verify failed")
1869
2368
# New buffer for the fingerprint
1870
2369
buf = ctypes.create_string_buffer(20)
1871
2370
buf_len = ctypes.c_size_t()
1872
2371
# Get the fingerprint from the certificate into the buffer
1873
(gnutls.library.functions
1874
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1875
ctypes.byref(buf_len)))
2372
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2373
ctypes.byref(buf_len))
1876
2374
# Deinit the certificate
1877
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2375
gnutls.openpgp_crt_deinit(crt)
1878
2376
# Convert the buffer to a Python bytestring
1879
2377
fpr = ctypes.string_at(buf, buf_len.value)
1880
2378
# Convert the bytestring to hexadecimal notation
1885
2383
class MultiprocessingMixIn(object):
1886
2384
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1887
2386
def sub_process_main(self, request, address):
1889
2388
self.finish_request(request, address)
1890
2389
except Exception:
1891
2390
self.handle_error(request, address)
1892
2391
self.close_request(request)
1894
2393
def process_request(self, request, address):
1895
2394
"""Start a new process to process the request."""
1896
proc = multiprocessing.Process(target = self.sub_process_main,
1897
args = (request, address))
2395
proc = multiprocessing.Process(target=self.sub_process_main,
2396
args=(request, address))
1902
2401
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1903
2402
""" adds a pipe to the MixIn """
1904
2404
def process_request(self, request, client_address):
1905
2405
"""Overrides and wraps the original process_request().
1907
2407
This function creates a new pipe in self.pipe
1909
2409
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1911
2411
proc = MultiprocessingMixIn.process_request(self, request,
1912
2412
client_address)
1913
2413
self.child_pipe.close()
1914
2414
self.add_pipe(parent_pipe, proc)
1916
2416
def add_pipe(self, parent_pipe, proc):
1917
2417
"""Dummy function; override as necessary"""
1918
raise NotImplementedError
2418
raise NotImplementedError()
1921
2421
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1922
2422
socketserver.TCPServer, object):
1923
2423
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1926
2426
enabled: Boolean; whether this server is activated yet
1927
2427
interface: None or a network interface name (string)
1928
2428
use_ipv6: Boolean; to use IPv6 or not
1930
2431
def __init__(self, server_address, RequestHandlerClass,
1931
interface=None, use_ipv6=True, socketfd=None):
1932
2435
"""If socketfd is set, use that file descriptor instead of
1933
2436
creating a new one with socket.socket().
1963
2467
# socket_wrapper(), if socketfd was set.
1964
2468
socketserver.TCPServer.__init__(self, server_address,
1965
2469
RequestHandlerClass)
1967
2471
def server_bind(self):
1968
2472
"""This overrides the normal server_bind() function
1969
2473
to bind to an interface if one was specified, and also NOT to
1970
2474
bind to an address or port if they were not specified."""
2475
global SO_BINDTODEVICE
1971
2476
if self.interface is not None:
1972
2477
if SO_BINDTODEVICE is None:
1973
logger.error("SO_BINDTODEVICE does not exist;"
1974
" cannot bind to interface %s",
1978
self.socket.setsockopt(socket.SOL_SOCKET,
1980
str(self.interface + '\0'))
1981
except socket.error as error:
1982
if error.errno == errno.EPERM:
1983
logger.error("No permission to bind to"
1984
" interface %s", self.interface)
1985
elif error.errno == errno.ENOPROTOOPT:
1986
logger.error("SO_BINDTODEVICE not available;"
1987
" cannot bind to interface %s",
1989
elif error.errno == errno.ENODEV:
1990
logger.error("Interface %s does not exist,"
1991
" cannot bind", self.interface)
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)
1994
2499
# Only bind(2) the socket if we really need to.
1995
2500
if self.server_address[0] or self.server_address[1]:
1996
2501
if not self.server_address[0]:
1997
2502
if self.address_family == socket.AF_INET6:
1998
any_address = "::" # in6addr_any
2503
any_address = "::" # in6addr_any
2000
any_address = "0.0.0.0" # INADDR_ANY
2505
any_address = "0.0.0.0" # INADDR_ANY
2001
2506
self.server_address = (any_address,
2002
2507
self.server_address[1])
2003
2508
elif not self.server_address[1]:
2004
self.server_address = (self.server_address[0],
2509
self.server_address = (self.server_address[0], 0)
2006
2510
# if self.interface:
2007
2511
# self.server_address = (self.server_address[0],
2384
2899
server_settings["socket"] = os.dup(server_settings
2386
2901
del server_config
2388
2903
# Override the settings from the config file with command line
2389
2904
# options, if set.
2390
2905
for option in ("interface", "address", "port", "debug",
2391
"priority", "servicename", "configdir",
2392
"use_dbus", "use_ipv6", "debuglevel", "restore",
2393
"statedir", "socket", "foreground"):
2906
"priority", "servicename", "configdir", "use_dbus",
2907
"use_ipv6", "debuglevel", "restore", "statedir",
2908
"socket", "foreground", "zeroconf"):
2394
2909
value = getattr(options, option)
2395
2910
if value is not None:
2396
2911
server_settings[option] = value
2398
2913
# Force all strings to be unicode
2399
2914
for option in server_settings.keys():
2400
if type(server_settings[option]) is str:
2401
server_settings[option] = unicode(server_settings[option])
2915
if isinstance(server_settings[option], bytes):
2916
server_settings[option] = (server_settings[option]
2402
2918
# Force all boolean options to be boolean
2403
2919
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2920
"foreground", "zeroconf"):
2405
2921
server_settings[option] = bool(server_settings[option])
2406
2922
# Debug implies foreground
2407
2923
if server_settings["debug"]:
2408
2924
server_settings["foreground"] = True
2409
2925
# Now we have our good server settings in "server_settings"
2411
2927
##################################################################
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")
2413
2934
# For convenience
2414
2935
debug = server_settings["debug"]
2415
2936
debuglevel = server_settings["debuglevel"]
2428
2950
level = getattr(logging, debuglevel.upper())
2429
2951
initlogger(debug, level)
2431
2953
if server_settings["servicename"] != "Mandos":
2432
syslogger.setFormatter(logging.Formatter
2433
('Mandos ({0}) [%(process)d]:'
2434
' %(levelname)s: %(message)s'
2435
.format(server_settings
2954
syslogger.setFormatter(
2955
logging.Formatter('Mandos ({}) [%(process)d]:'
2956
' %(levelname)s: %(message)s'.format(
2957
server_settings["servicename"])))
2438
2959
# Parse config file with clients
2439
2960
client_config = configparser.SafeConfigParser(Client
2440
2961
.client_defaults)
2441
2962
client_config.read(os.path.join(server_settings["configdir"],
2442
2963
"clients.conf"))
2444
2965
global mandos_dbus_service
2445
2966
mandos_dbus_service = None
2447
tcp_server = MandosServer((server_settings["address"],
2448
server_settings["port"]),
2450
interface=(server_settings["interface"]
2454
server_settings["priority"],
2456
socketfd=(server_settings["socket"]
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"],
2458
2979
if not foreground:
2459
2980
pidfilename = "/run/mandos.pid"
2460
2981
if not os.path.isdir("/run/."):
2461
2982
pidfilename = "/var/run/mandos.pid"
2464
pidfile = open(pidfilename, "w")
2985
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2465
2986
except IOError as e:
2466
2987
logger.error("Could not open file %r", pidfilename,
2469
for name in ("_mandos", "mandos", "nobody"):
2990
for name, group in (("_mandos", "_mandos"),
2991
("mandos", "mandos"),
2992
("nobody", "nogroup")):
2471
2994
uid = pwd.getpwnam(name).pw_uid
2472
gid = pwd.getpwnam(name).pw_gid
2995
gid = pwd.getpwnam(group).pw_gid
2474
2997
except KeyError:
3006
logger.debug("Did setuid/setgid to {}:{}".format(uid,
2482
3008
except OSError as error:
3009
logger.warning("Failed to setuid/setgid to {}:{}: {}"
3010
.format(uid, gid, os.strerror(error.errno)))
2483
3011
if error.errno != errno.EPERM:
2487
3015
# Enable all possible GnuTLS debugging
2489
3017
# "Use a log level over 10 to enable all debugging options."
2490
3018
# - GnuTLS manual
2491
gnutls.library.functions.gnutls_global_set_log_level(11)
2493
@gnutls.library.types.gnutls_log_func
3019
gnutls.global_set_log_level(11)
2494
3022
def debug_gnutls(level, string):
2495
3023
logger.debug("GnuTLS: %s", string[:-1])
2497
(gnutls.library.functions
2498
.gnutls_global_set_log_function(debug_gnutls))
3025
gnutls.global_set_log_function(debug_gnutls)
2500
3027
# Redirect stdin so all checkers get /dev/null
2501
3028
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2502
3029
os.dup2(null, sys.stdin.fileno())
2506
3033
# Need to fork before connecting to D-Bus
2507
3034
if not foreground:
2508
3035
# Close all input and output, do double fork, etc.
2511
# multiprocessing will use threads, so before we use gobject we
2512
# need to inform gobject that threads will be used.
2513
gobject.threads_init()
3038
# multiprocessing will use threads, so before we use GLib we need
3039
# to inform GLib that threads will be used.
2515
3042
global main_loop
2516
3043
# From the Avahi example code
2517
3044
DBusGMainLoop(set_as_default=True)
2518
main_loop = gobject.MainLoop()
3045
main_loop = GLib.MainLoop()
2519
3046
bus = dbus.SystemBus()
2520
3047
# End of Avahi example code
2523
3050
bus_name = dbus.service.BusName("se.recompile.Mandos",
2524
bus, do_not_queue=True)
2525
old_bus_name = (dbus.service.BusName
2526
("se.bsnet.fukt.Mandos", bus,
2528
except dbus.exceptions.NameExistsException as e:
3053
old_bus_name = dbus.service.BusName(
3054
"se.bsnet.fukt.Mandos", bus,
3056
except dbus.exceptions.DBusException as e:
2529
3057
logger.error("Disabling D-Bus:", exc_info=e)
2530
3058
use_dbus = False
2531
3059
server_settings["use_dbus"] = False
2532
3060
tcp_server.use_dbus = False
2533
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2534
service = AvahiServiceToSyslog(name =
2535
server_settings["servicename"],
2536
servicetype = "_mandos._tcp",
2537
protocol = protocol, bus = bus)
2538
if server_settings["interface"]:
2539
service.interface = (if_nametoindex
2540
(str(server_settings["interface"])))
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"))
2542
3072
global multiprocessing_manager
2543
3073
multiprocessing_manager = multiprocessing.Manager()
2545
3075
client_class = Client
2547
client_class = functools.partial(ClientDBus, bus = bus)
3077
client_class = functools.partial(ClientDBus, bus=bus)
2549
3079
client_settings = Client.config_parser(client_config)
2550
3080
old_client_settings = {}
2551
3081
clients_data = {}
2553
3083
# This is used to redirect stdout and stderr for checker processes
2555
wnull = open(os.devnull, "w") # A writable /dev/null
3085
wnull = open(os.devnull, "w") # A writable /dev/null
2556
3086
# Only used if server is running in foreground but not in debug
2558
3088
if debug or not foreground:
2561
3091
# Get client data and settings from last running state.
2562
3092
if server_settings["restore"]:
2564
3094
with open(stored_state_path, "rb") as stored_state:
2565
clients_data, old_client_settings = (pickle.load
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"]
2567
3140
os.remove(stored_state_path)
2568
3141
except IOError as e:
2569
3142
if e.errno == errno.ENOENT:
2570
logger.warning("Could not load persistent state: {0}"
2571
.format(os.strerror(e.errno)))
3143
logger.warning("Could not load persistent state:"
3144
" {}".format(os.strerror(e.errno)))
2573
3146
logger.critical("Could not load persistent state:",
2576
3149
except EOFError as e:
2577
3150
logger.warning("Could not load persistent state: "
2578
"EOFError:", exc_info=e)
2580
3154
with PGPEngine() as pgp:
2581
for client_name, client in clients_data.iteritems():
3155
for client_name, client in clients_data.items():
2582
3156
# Skip removed clients
2583
3157
if client_name not in client_settings:
2586
3160
# Decide which value to use after restoring saved state.
2587
3161
# We have three different values: Old config file,
2588
3162
# new config file, and saved state.
2646
3220
for client_name in (set(client_settings)
2647
3221
- set(old_client_settings)):
2648
3222
clients_data[client_name] = client_settings[client_name]
2650
3224
# Create all client objects
2651
for client_name, client in clients_data.iteritems():
3225
for client_name, client in clients_data.items():
2652
3226
tcp_server.clients[client_name] = client_class(
2653
name = client_name, settings = client,
2654
server_settings = server_settings)
3229
server_settings=server_settings)
2656
3231
if not tcp_server.clients:
2657
3232
logger.warning("No clients defined")
2659
3234
if not foreground:
2660
3235
if pidfile is not None:
2664
pidfile.write(str(pid) + "\n".encode("utf-8"))
3239
print(pid, file=pidfile)
2665
3240
except IOError:
2666
3241
logger.error("Could not write to file %r with PID %d",
2667
3242
pidfilename, pid)
2669
3244
del pidfilename
2671
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2672
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3246
for termsig in (signal.SIGHUP, signal.SIGTERM):
3247
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3248
lambda: main_loop.quit() and False)
2675
@alternate_dbus_interfaces({"se.recompile.Mandos":
2676
"se.bsnet.fukt.Mandos"})
2677
class MandosDBusService(DBusObjectWithProperties):
3252
@alternate_dbus_interfaces(
3253
{"se.recompile.Mandos": "se.bsnet.fukt.Mandos"})
3254
class MandosDBusService(DBusObjectWithObjectManager):
2678
3255
"""A D-Bus proxy object"""
2679
3257
def __init__(self):
2680
3258
dbus.service.Object.__init__(self, bus, "/")
2681
3260
_interface = "se.recompile.Mandos"
2683
@dbus_interface_annotations(_interface)
2685
return { "org.freedesktop.DBus.Property"
2686
".EmitsChangedSignal":
2689
3262
@dbus.service.signal(_interface, signature="o")
2690
3263
def ClientAdded(self, objpath):
2694
3267
@dbus.service.signal(_interface, signature="ss")
2695
3268
def ClientNotFound(self, fingerprint, address):
3272
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2699
3274
@dbus.service.signal(_interface, signature="os")
2700
3275
def ClientRemoved(self, objpath, name):
3279
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2704
3281
@dbus.service.method(_interface, out_signature="ao")
2705
3282
def GetAllClients(self):
2707
return dbus.Array(c.dbus_object_path
2709
tcp_server.clients.itervalues())
3284
return dbus.Array(c.dbus_object_path for c in
3285
tcp_server.clients.values())
3287
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
2711
3289
@dbus.service.method(_interface,
2712
3290
out_signature="a{oa{sv}}")
2713
3291
def GetAllClientsWithProperties(self):
2715
3293
return dbus.Dictionary(
2716
((c.dbus_object_path, c.GetAll(""))
2717
for c in tcp_server.clients.itervalues()),
3294
{c.dbus_object_path: c.GetAll(
3295
"se.recompile.Mandos.Client")
3296
for c in tcp_server.clients.values()},
2718
3297
signature="oa{sv}")
2720
3299
@dbus.service.method(_interface, in_signature="o")
2721
3300
def RemoveClient(self, object_path):
2723
for c in tcp_server.clients.itervalues():
3302
for c in tcp_server.clients.values():
2724
3303
if c.dbus_object_path == object_path:
2725
3304
del tcp_server.clients[c.name]
2726
3305
c.remove_from_connection()
2727
# Don't signal anything except ClientRemoved
3306
# Don't signal the disabling
2728
3307
c.disable(quiet=True)
2730
self.ClientRemoved(object_path, c.name)
3308
# Emit D-Bus signal for removal
3309
self.client_removed_signal(c)
2732
3311
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,
2736
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
2739
3359
"Cleanup function; run on exit"
2742
multiprocessing.active_children()
3363
mp.active_children()
2744
3365
if not (tcp_server.clients or client_settings):
2747
3368
# Store client before exiting. Secrets are encrypted with key
2748
3369
# based on what config file has. If config file is
2749
3370
# removed/edited, old secret will thus be unrecovable.
2751
3372
with PGPEngine() as pgp:
2752
for client in tcp_server.clients.itervalues():
3373
for client in tcp_server.clients.values():
2753
3374
key = client_settings[client.name]["secret"]
2754
3375
client.encrypted_secret = pgp.encrypt(client.secret,
2756
3377
client_dict = {}
2758
3379
# A list of attributes that can not be pickled
2760
exclude = set(("bus", "changedstate", "secret",
2761
"checker", "server_settings"))
2762
for name, typ in (inspect.getmembers
2763
(dbus.service.Object)):
3381
exclude = {"bus", "changedstate", "secret",
3382
"checker", "server_settings"}
3383
for name, typ in inspect.getmembers(dbus.service
2764
3385
exclude.add(name)
2766
3387
client_dict["encrypted_secret"] = (client
2767
3388
.encrypted_secret)
2768
3389
for attr in client.client_structure:
2769
3390
if attr not in exclude:
2770
3391
client_dict[attr] = getattr(client, attr)
2772
3393
clients[client.name] = client_dict
2773
3394
del client_settings[client.name]["secret"]
2776
with (tempfile.NamedTemporaryFile
2777
(mode='wb', suffix=".pickle", prefix='clients-',
2778
dir=os.path.dirname(stored_state_path),
2779
delete=False)) as stored_state:
2780
pickle.dump((clients, client_settings), stored_state)
2781
tempname=stored_state.name
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
2782
3406
os.rename(tempname, stored_state_path)
2783
3407
except (IOError, OSError) as e: