101
86
except ImportError:
102
87
SO_BINDTODEVICE = None
104
if sys.version_info.major == 2:
108
90
stored_state_file = "clients.pickle"
110
92
logger = logging.getLogger()
93
syslogger = (logging.handlers.SysLogHandler
94
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
95
address = str("/dev/log")))
114
if_nametoindex = ctypes.cdll.LoadLibrary(
115
ctypes.util.find_library("c")).if_nametoindex
98
if_nametoindex = (ctypes.cdll.LoadLibrary
99
(ctypes.util.find_library("c"))
116
101
except (OSError, AttributeError):
118
102
def if_nametoindex(interface):
119
103
"Get an interface index the hard way, i.e. using fcntl()"
120
104
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
121
105
with contextlib.closing(socket.socket()) as s:
122
106
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
123
struct.pack(b"16s16x", interface))
124
interface_index = struct.unpack("I", ifreq[16:20])[0]
107
struct.pack(str("16s16x"),
109
interface_index = struct.unpack(str("I"),
125
111
return interface_index
128
114
def initlogger(debug, level=logging.WARNING):
129
115
"""init logger and add loglevel"""
132
syslogger = (logging.handlers.SysLogHandler(
133
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
134
address = "/dev/log"))
135
117
syslogger.setFormatter(logging.Formatter
136
118
('Mandos [%(process)d]: %(levelname)s:'
189
172
def password_encode(self, password):
190
173
# Passphrase can not be empty and can not contain newlines or
191
174
# NUL bytes. So we prefix it and hex encode it.
192
encoded = b"mandos" + binascii.hexlify(password)
193
if len(encoded) > 2048:
194
# GnuPG can't handle long passwords, so encode differently
195
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
196
.replace(b"\n", b"\\n")
197
.replace(b"\0", b"\\x00"))
175
return b"mandos" + binascii.hexlify(password)
200
177
def encrypt(self, data, password):
201
passphrase = self.password_encode(password)
202
with tempfile.NamedTemporaryFile(
203
dir=self.tempdir) as passfile:
204
passfile.write(passphrase)
206
proc = subprocess.Popen(['gpg', '--symmetric',
210
stdin = subprocess.PIPE,
211
stdout = subprocess.PIPE,
212
stderr = subprocess.PIPE)
213
ciphertext, err = proc.communicate(input = data)
214
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
216
192
return ciphertext
218
194
def decrypt(self, data, password):
219
passphrase = self.password_encode(password)
220
with tempfile.NamedTemporaryFile(
221
dir = self.tempdir) as passfile:
222
passfile.write(passphrase)
224
proc = subprocess.Popen(['gpg', '--decrypt',
228
stdin = subprocess.PIPE,
229
stdout = subprocess.PIPE,
230
stderr = subprocess.PIPE)
231
decrypted_plaintext, err = proc.communicate(input = data)
232
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
234
209
return decrypted_plaintext
237
213
class AvahiError(Exception):
238
214
def __init__(self, value, *args, **kwargs):
239
215
self.value = value
240
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))
244
220
class AvahiServiceError(AvahiError):
248
223
class AvahiGroupError(AvahiError):
422
367
follow_name_owner_changes=True),
423
368
avahi.DBUS_INTERFACE_SERVER)
424
369
self.server.connect_to_signal("StateChanged",
425
self.server_state_changed)
370
self.server_state_changed)
426
371
self.server_state_changed(self.server.GetState())
429
373
class AvahiServiceToSyslog(AvahiService):
430
def rename(self, *args, **kwargs):
431
375
"""Add the new name to the syslog messages"""
432
ret = AvahiService.rename(self, *args, **kwargs)
433
syslogger.setFormatter(logging.Formatter(
434
'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'
438
def call_pipe(connection, # : multiprocessing.Connection
439
func, *args, **kwargs):
440
"""This function is meant to be called by multiprocessing.Process
442
This function runs func(*args, **kwargs), and writes the resulting
443
return value on the provided multiprocessing.Connection.
445
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))
448
389
class Client(object):
449
390
"""A representation of a client host served by this server.
488
427
runtime_expansions: Allowed attributes for runtime expansion.
489
428
expires: datetime.datetime(); time (UTC) when a client will be
490
429
disabled, or None
491
server_settings: The server_settings dict from main()
494
432
runtime_expansions = ("approval_delay", "approval_duration",
495
"created", "enabled", "expires",
496
"fingerprint", "host", "interval",
497
"last_approval_request", "last_checked_ok",
433
"created", "enabled", "fingerprint",
434
"host", "interval", "last_checked_ok",
498
435
"last_enabled", "name", "timeout")
501
"extended_timeout": "PT15M",
503
"checker": "fping -q -- %%(host)s",
505
"approval_delay": "PT0S",
506
"approval_duration": "PT1S",
507
"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)
512
463
def config_parser(config):
513
464
"""Construct a new dict of client settings of this form:
644
599
def init_checker(self):
645
600
# Schedule a new checker to be started an 'interval' from now,
646
601
# and every interval from then on.
647
if self.checker_initiator_tag is not None:
648
gobject.source_remove(self.checker_initiator_tag)
649
self.checker_initiator_tag = gobject.timeout_add(
650
int(self.interval.total_seconds() * 1000),
602
self.checker_initiator_tag = (gobject.timeout_add
603
(self.interval_milliseconds(),
652
605
# Schedule a disable() when 'timeout' has passed
653
if self.disable_initiator_tag is not None:
654
gobject.source_remove(self.disable_initiator_tag)
655
self.disable_initiator_tag = gobject.timeout_add(
656
int(self.timeout.total_seconds() * 1000), self.disable)
606
self.disable_initiator_tag = (gobject.timeout_add
607
(self.timeout_milliseconds(),
657
609
# Also start a new checker *right now*.
658
610
self.start_checker()
660
def checker_callback(self, source, condition, connection,
612
def checker_callback(self, pid, condition, command):
662
613
"""The checker has completed, so take appropriate actions."""
663
614
self.checker_callback_tag = None
664
615
self.checker = None
665
# Read return code from connection (see call_pipe)
666
returncode = connection.recv()
670
self.last_checker_status = returncode
671
self.last_checker_signal = None
616
if os.WIFEXITED(condition):
617
self.last_checker_status = os.WEXITSTATUS(condition)
672
618
if self.last_checker_status == 0:
673
619
logger.info("Checker for %(name)s succeeded",
675
621
self.checked_ok()
677
logger.info("Checker for %(name)s failed", vars(self))
623
logger.info("Checker for %(name)s failed",
679
626
self.last_checker_status = -1
680
self.last_checker_signal = -returncode
681
627
logger.warning("Checker for %(name)s crashed?",
685
630
def checked_ok(self):
686
631
"""Assert that the client has been seen, alive and well."""
687
632
self.last_checked_ok = datetime.datetime.utcnow()
688
633
self.last_checker_status = 0
689
self.last_checker_signal = None
690
634
self.bump_timeout()
692
636
def bump_timeout(self, timeout=None):
710
654
If a checker already exists, leave it running and do
712
656
# The reason for not killing a running checker is that if we
713
# did that, and if a checker (for some reason) started running
714
# slowly and taking more than 'interval' time, then the client
715
# would inevitably timeout, since no checker would get a
716
# 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
717
661
# checkers alone, the checker would have to take more time
718
662
# than 'timeout' for the client to be disabled, which is as it
721
if self.checker is not None and not self.checker.is_alive():
722
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)
725
678
# Start a new checker if needed
726
679
if self.checker is None:
727
# Escape attributes for the shell
729
attr: re.escape(str(getattr(self, attr)))
730
for attr in self.runtime_expansions }
732
command = self.checker_command % escaped_attrs
733
except TypeError as error:
734
logger.error('Could not format string "%s"',
735
self.checker_command,
737
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
738
699
self.current_checker_command = command
739
logger.info("Starting checker %r for %s", command,
741
# We don't need to redirect stdout and stderr, since
742
# in normal mode, that is already done by daemon(),
743
# and in debug mode we don't want to. (Stdin is
744
# always replaced by /dev/null.)
745
# The exception is when not debugging but nevertheless
746
# running in the foreground; use the previously
748
popen_args = { "close_fds": True,
751
if (not self.server_settings["debug"]
752
and self.server_settings["foreground"]):
753
popen_args.update({"stdout": wnull,
755
pipe = multiprocessing.Pipe(duplex = False)
756
self.checker = multiprocessing.Process(
758
args = (pipe[1], subprocess.call, command),
761
self.checker_callback_tag = gobject.io_add_watch(
762
pipe[0].fileno(), gobject.IO_IN,
763
self.checker_callback, pipe[0], command)
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",
764
723
# Re-run this periodically if run by gobject.timeout_add
884
843
If called like _is_dbus_thing("method") it returns a function
885
844
suitable for use as predicate to inspect.getmembers().
887
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
846
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
890
849
def _get_all_dbus_things(self, thing):
891
850
"""Returns a generator of (name, attribute) pairs
893
return ((getattr(athing.__get__(self), "_dbus_name", name),
852
return ((getattr(athing.__get__(self), "_dbus_name",
894
854
athing.__get__(self))
895
855
for cls in self.__class__.__mro__
896
856
for name, athing in
897
inspect.getmembers(cls, self._is_dbus_thing(thing)))
857
inspect.getmembers(cls,
858
self._is_dbus_thing(thing)))
899
860
def _get_dbus_property(self, interface_name, property_name):
900
861
"""Returns a bound method if one exists which is a D-Bus
901
862
property with the specified name and interface.
903
for cls in self.__class__.__mro__:
904
for name, value in inspect.getmembers(
905
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"))):
906
868
if (value._dbus_name == property_name
907
869
and value._dbus_interface == interface_name):
908
870
return value.__get__(self)
910
872
# No such property
911
raise DBusPropertyNotFound("{}:{}.{}".format(
912
self.dbus_object_path, interface_name, property_name))
873
raise DBusPropertyNotFound(self.dbus_object_path + ":"
874
+ interface_name + "."
914
@dbus.service.method(dbus.PROPERTIES_IFACE,
877
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
916
878
out_signature="v")
917
879
def Get(self, interface_name, property_name):
918
880
"""Standard D-Bus property Get() method, see D-Bus standard.
1055
1006
except (AttributeError, xml.dom.DOMException,
1056
1007
xml.parsers.expat.ExpatError) as error:
1057
1008
logger.error("Failed to override Introspection method",
1059
1010
return xmlstring
1062
def datetime_to_dbus(dt, variant_level=0):
1013
def datetime_to_dbus (dt, variant_level=0):
1063
1014
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1065
1016
return dbus.String("", variant_level = variant_level)
1066
return dbus.String(dt.isoformat(), variant_level=variant_level)
1069
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1070
"""A class decorator; applied to a subclass of
1071
dbus.service.Object, it will add alternate D-Bus attributes with
1072
interface names according to the "alt_interface_names" mapping.
1075
@alternate_dbus_interfaces({"org.example.Interface":
1076
"net.example.AlternateInterface"})
1077
class SampleDBusObject(dbus.service.Object):
1078
@dbus.service.method("org.example.Interface")
1079
def SampleDBusMethod():
1082
The above "SampleDBusMethod" on "SampleDBusObject" will be
1083
reachable via two interfaces: "org.example.Interface" and
1084
"net.example.AlternateInterface", the latter of which will have
1085
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1086
"true", unless "deprecate" is passed with a False value.
1088
This works for methods and signals, and also for D-Bus properties
1089
(from DBusObjectWithProperties) and interfaces (from the
1090
dbus_interface_annotations decorator).
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.
1094
for orig_interface_name, alt_interface_name in (
1095
alt_interface_names.items()):
1097
interface_names = set()
1098
# Go though all attributes of the class
1099
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):
1100
1034
# Ignore non-D-Bus attributes, and D-Bus attributes
1101
1035
# with the wrong interface name
1102
1036
if (not hasattr(attribute, "_dbus_interface")
1103
or not attribute._dbus_interface.startswith(
1104
orig_interface_name)):
1037
or not attribute._dbus_interface
1038
.startswith("se.recompile.Mandos")):
1106
1040
# Create an alternate D-Bus interface name based on
1107
1041
# the current name
1108
alt_interface = attribute._dbus_interface.replace(
1109
orig_interface_name, alt_interface_name)
1110
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)
1111
1047
# Is this a D-Bus signal?
1112
1048
if getattr(attribute, "_dbus_is_signal", False):
1113
if sys.version_info.major == 2:
1114
# Extract the original non-method undecorated
1115
# function by black magic
1116
nonmethod_func = (dict(
1049
# Extract the original non-method function by
1051
nonmethod_func = (dict(
1117
1052
zip(attribute.func_code.co_freevars,
1118
attribute.__closure__))
1119
["func"].cell_contents)
1121
nonmethod_func = attribute
1053
attribute.__closure__))["func"]
1122
1055
# Create a new, but exactly alike, function
1123
1056
# object, and decorate it to be a new D-Bus signal
1124
1057
# with the alternate D-Bus interface name
1125
if sys.version_info.major == 2:
1126
new_function = types.FunctionType(
1127
nonmethod_func.func_code,
1128
nonmethod_func.func_globals,
1129
nonmethod_func.func_name,
1130
nonmethod_func.func_defaults,
1131
nonmethod_func.func_closure)
1133
new_function = types.FunctionType(
1134
nonmethod_func.__code__,
1135
nonmethod_func.__globals__,
1136
nonmethod_func.__name__,
1137
nonmethod_func.__defaults__,
1138
nonmethod_func.__closure__)
1139
new_function = (dbus.service.signal(
1141
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)))
1142
1067
# Copy annotations, if any
1144
new_function._dbus_annotations = dict(
1145
attribute._dbus_annotations)
1069
new_function._dbus_annotations = (
1070
dict(attribute._dbus_annotations))
1146
1071
except AttributeError:
1148
1073
# Define a creator of a function to call both the
1149
# original and alternate functions, so both the
1150
# original and alternate signals gets sent when
1151
# the function is called
1074
# old and new functions, so both the old and new
1075
# signals gets sent when the function is called
1152
1076
def fixscope(func1, func2):
1153
1077
"""This function is a scope container to pass
1154
1078
func1 and func2 to the "call_both" function
1155
1079
outside of its arguments"""
1157
1080
def call_both(*args, **kwargs):
1158
1081
"""This function will emit two D-Bus
1159
1082
signals by calling func1 and func2"""
1160
1083
func1(*args, **kwargs)
1161
1084
func2(*args, **kwargs)
1163
1085
return call_both
1164
1086
# Create the "call_both" function and add it to
1166
attr[attrname] = fixscope(attribute, new_function)
1088
attr[attrname] = fixscope(attribute,
1167
1090
# Is this a D-Bus method?
1168
1091
elif getattr(attribute, "_dbus_is_method", False):
1169
1092
# Create a new, but exactly alike, function
1170
1093
# object. Decorate it to be a new D-Bus method
1171
1094
# with the alternate D-Bus interface name. Add it
1172
1095
# to the class.
1174
dbus.service.method(
1176
attribute._dbus_in_signature,
1177
attribute._dbus_out_signature)
1178
(types.FunctionType(attribute.func_code,
1179
attribute.func_globals,
1180
attribute.func_name,
1181
attribute.func_defaults,
1182
attribute.func_closure)))
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)))
1183
1106
# Copy annotations, if any
1185
attr[attrname]._dbus_annotations = dict(
1186
attribute._dbus_annotations)
1108
attr[attrname]._dbus_annotations = (
1109
dict(attribute._dbus_annotations))
1187
1110
except AttributeError:
1189
1112
# Is this a D-Bus property?
1215
1140
# object. Decorate it to be a new D-Bus interface
1216
1141
# with the alternate D-Bus interface name. Add it
1217
1142
# to the class.
1219
dbus_interface_annotations(alt_interface)
1220
(types.FunctionType(attribute.func_code,
1221
attribute.func_globals,
1222
attribute.func_name,
1223
attribute.func_defaults,
1224
attribute.func_closure)))
1226
# Deprecate all alternate interfaces
1227
iname="_AlternateDBusNames_interface_annotation{}"
1228
for interface_name in interface_names:
1230
@dbus_interface_annotations(interface_name)
1232
return { "org.freedesktop.DBus.Deprecated":
1234
# Find an unused name
1235
for aname in (iname.format(i)
1236
for i in itertools.count()):
1237
if aname not in attr:
1241
# Replace the class with a new subclass of it with
1242
# methods, signals, etc. as created above.
1243
cls = type(b"{}Alternate".format(cls.__name__),
1250
@alternate_dbus_interfaces({"se.recompile.Mandos":
1251
"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)
1252
1166
class ClientDBus(Client, DBusObjectWithProperties):
1253
1167
"""A Client class using D-Bus
1336
1236
datetime_to_dbus, "LastApprovalRequest")
1337
1237
approved_by_default = notifychangeproperty(dbus.Boolean,
1338
1238
"ApprovedByDefault")
1339
approval_delay = notifychangeproperty(
1340
dbus.UInt64, "ApprovalDelay",
1341
type_func = lambda td: td.total_seconds() * 1000)
1239
approval_delay = notifychangeproperty(dbus.UInt64,
1242
timedelta_to_milliseconds)
1342
1243
approval_duration = notifychangeproperty(
1343
1244
dbus.UInt64, "ApprovalDuration",
1344
type_func = lambda td: td.total_seconds() * 1000)
1245
type_func = timedelta_to_milliseconds)
1345
1246
host = notifychangeproperty(dbus.String, "Host")
1346
timeout = notifychangeproperty(
1347
dbus.UInt64, "Timeout",
1348
type_func = lambda td: td.total_seconds() * 1000)
1247
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1249
timedelta_to_milliseconds)
1349
1250
extended_timeout = notifychangeproperty(
1350
1251
dbus.UInt64, "ExtendedTimeout",
1351
type_func = lambda td: td.total_seconds() * 1000)
1352
interval = notifychangeproperty(
1353
dbus.UInt64, "Interval",
1354
type_func = lambda td: td.total_seconds() * 1000)
1252
type_func = timedelta_to_milliseconds)
1253
interval = notifychangeproperty(dbus.UInt64,
1256
timedelta_to_milliseconds)
1355
1257
checker_command = notifychangeproperty(dbus.String, "Checker")
1356
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1357
invalidate_only=True)
1359
1259
del notifychangeproperty
1367
1267
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1368
1268
Client.__del__(self, *args, **kwargs)
1370
def checker_callback(self, source, condition,
1371
connection, command, *args, **kwargs):
1372
ret = Client.checker_callback(self, source, condition,
1373
connection, command, *args,
1375
exitstatus = self.last_checker_status
1270
def checker_callback(self, pid, condition, command,
1272
self.checker_callback_tag = None
1274
if os.WIFEXITED(condition):
1275
exitstatus = os.WEXITSTATUS(condition)
1377
1276
# Emit D-Bus signal
1378
1277
self.CheckerCompleted(dbus.Int16(exitstatus),
1278
dbus.Int64(condition),
1380
1279
dbus.String(command))
1382
1281
# Emit D-Bus signal
1383
1282
self.CheckerCompleted(dbus.Int16(-1),
1385
self.last_checker_signal),
1283
dbus.Int64(condition),
1386
1284
dbus.String(command))
1286
return Client.checker_callback(self, pid, condition, command,
1389
1289
def start_checker(self, *args, **kwargs):
1390
old_checker_pid = getattr(self.checker, "pid", None)
1290
old_checker = self.checker
1291
if self.checker is not None:
1292
old_checker_pid = self.checker.pid
1294
old_checker_pid = None
1391
1295
r = Client.start_checker(self, *args, **kwargs)
1392
1296
# Only if new checker process was started
1393
1297
if (self.checker is not None
1590
1495
return datetime_to_dbus(self.last_approval_request)
1592
1497
# Timeout - property
1593
@dbus_service_property(_interface,
1498
@dbus_service_property(_interface, signature="t",
1595
1499
access="readwrite")
1596
1500
def Timeout_dbus_property(self, value=None):
1597
1501
if value is None: # get
1598
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1599
old_timeout = self.timeout
1502
return dbus.UInt64(self.timeout_milliseconds())
1600
1503
self.timeout = datetime.timedelta(0, 0, 0, value)
1601
# Reschedule disabling
1504
# Reschedule timeout
1602
1505
if self.enabled:
1603
1506
now = datetime.datetime.utcnow()
1604
self.expires += self.timeout - old_timeout
1605
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:
1606
1510
# The timeout has passed
1513
self.expires = (now +
1514
datetime.timedelta(milliseconds =
1609
1516
if (getattr(self, "disable_initiator_tag", None)
1612
1519
gobject.source_remove(self.disable_initiator_tag)
1613
self.disable_initiator_tag = gobject.timeout_add(
1614
int((self.expires - now).total_seconds() * 1000),
1520
self.disable_initiator_tag = (gobject.timeout_add
1617
1524
# ExtendedTimeout - property
1618
@dbus_service_property(_interface,
1525
@dbus_service_property(_interface, signature="t",
1620
1526
access="readwrite")
1621
1527
def ExtendedTimeout_dbus_property(self, value=None):
1622
1528
if value is None: # get
1623
return dbus.UInt64(self.extended_timeout.total_seconds()
1529
return dbus.UInt64(self.extended_timeout_milliseconds())
1625
1530
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1627
1532
# Interval - property
1628
@dbus_service_property(_interface,
1533
@dbus_service_property(_interface, signature="t",
1630
1534
access="readwrite")
1631
1535
def Interval_dbus_property(self, value=None):
1632
1536
if value is None: # get
1633
return dbus.UInt64(self.interval.total_seconds() * 1000)
1537
return dbus.UInt64(self.interval_milliseconds())
1634
1538
self.interval = datetime.timedelta(0, 0, 0, value)
1635
1539
if getattr(self, "checker_initiator_tag", None) is None:
1637
1541
if self.enabled:
1638
1542
# Reschedule checker run
1639
1543
gobject.source_remove(self.checker_initiator_tag)
1640
self.checker_initiator_tag = gobject.timeout_add(
1641
value, self.start_checker)
1642
self.start_checker() # Start one now, too
1544
self.checker_initiator_tag = (gobject.timeout_add
1545
(value, self.start_checker))
1546
self.start_checker() # Start one now, too
1644
1548
# Checker - property
1645
@dbus_service_property(_interface,
1549
@dbus_service_property(_interface, signature="s",
1647
1550
access="readwrite")
1648
1551
def Checker_dbus_property(self, value=None):
1649
1552
if value is None: # get
1650
1553
return dbus.String(self.checker_command)
1651
self.checker_command = str(value)
1554
self.checker_command = unicode(value)
1653
1556
# CheckerRunning - property
1654
@dbus_service_property(_interface,
1557
@dbus_service_property(_interface, signature="b",
1656
1558
access="readwrite")
1657
1559
def CheckerRunning_dbus_property(self, value=None):
1658
1560
if value is None: # get
1883
1788
def fingerprint(openpgp):
1884
1789
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1885
1790
# New GnuTLS "datum" with the OpenPGP public key
1886
datum = gnutls.library.types.gnutls_datum_t(
1887
ctypes.cast(ctypes.c_char_p(openpgp),
1888
ctypes.POINTER(ctypes.c_ubyte)),
1889
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))))
1890
1796
# New empty GnuTLS certificate
1891
1797
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1892
gnutls.library.functions.gnutls_openpgp_crt_init(
1798
(gnutls.library.functions
1799
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
1894
1800
# Import the OpenPGP public key into the certificate
1895
gnutls.library.functions.gnutls_openpgp_crt_import(
1896
crt, ctypes.byref(datum),
1897
gnutls.library.constants.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))
1898
1805
# Verify the self signature in the key
1899
1806
crtverify = ctypes.c_uint()
1900
gnutls.library.functions.gnutls_openpgp_crt_verify_self(
1901
crt, 0, ctypes.byref(crtverify))
1807
(gnutls.library.functions
1808
.gnutls_openpgp_crt_verify_self(crt, 0,
1809
ctypes.byref(crtverify)))
1902
1810
if crtverify.value != 0:
1903
1811
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1904
raise gnutls.errors.CertificateSecurityError(
1812
raise (gnutls.errors.CertificateSecurityError
1906
1814
# New buffer for the fingerprint
1907
1815
buf = ctypes.create_string_buffer(20)
1908
1816
buf_len = ctypes.c_size_t()
1909
1817
# Get the fingerprint from the certificate into the buffer
1910
gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(
1911
crt, ctypes.byref(buf), ctypes.byref(buf_len))
1818
(gnutls.library.functions
1819
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1820
ctypes.byref(buf_len)))
1912
1821
# Deinit the certificate
1913
1822
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1914
1823
# Convert the buffer to a Python bytestring
1965
1873
interface: None or a network interface name (string)
1966
1874
use_ipv6: Boolean; to use IPv6 or not
1969
1876
def __init__(self, server_address, RequestHandlerClass,
1973
"""If socketfd is set, use that file descriptor instead of
1974
creating a new one with socket.socket().
1877
interface=None, use_ipv6=True):
1976
1878
self.interface = interface
1978
1880
self.address_family = socket.AF_INET6
1979
if socketfd is not None:
1980
# Save the file descriptor
1981
self.socketfd = socketfd
1982
# Save the original socket.socket() function
1983
self.socket_socket = socket.socket
1984
# To implement --socket, we monkey patch socket.socket.
1986
# (When socketserver.TCPServer is a new-style class, we
1987
# could make self.socket into a property instead of monkey
1988
# patching socket.socket.)
1990
# Create a one-time-only replacement for socket.socket()
1991
@functools.wraps(socket.socket)
1992
def socket_wrapper(*args, **kwargs):
1993
# Restore original function so subsequent calls are
1995
socket.socket = self.socket_socket
1996
del self.socket_socket
1997
# This time only, return a new socket object from the
1998
# saved file descriptor.
1999
return socket.fromfd(self.socketfd, *args, **kwargs)
2000
# Replace socket.socket() function with wrapper
2001
socket.socket = socket_wrapper
2002
# The socketserver.TCPServer.__init__ will call
2003
# socket.socket(), which might be our replacement,
2004
# socket_wrapper(), if socketfd was set.
2005
1881
socketserver.TCPServer.__init__(self, server_address,
2006
1882
RequestHandlerClass)
2008
1883
def server_bind(self):
2009
1884
"""This overrides the normal server_bind() function
2010
1885
to bind to an interface if one was specified, and also NOT to
2092
1960
def add_pipe(self, parent_pipe, proc):
2093
1961
# Call "handle_ipc" for both data and EOF events
2094
gobject.io_add_watch(
2095
parent_pipe.fileno(),
2096
gobject.IO_IN | gobject.IO_HUP,
2097
functools.partial(self.handle_ipc,
2098
parent_pipe = parent_pipe,
1962
gobject.io_add_watch(parent_pipe.fileno(),
1963
gobject.IO_IN | gobject.IO_HUP,
1964
functools.partial(self.handle_ipc,
2101
def handle_ipc(self, source, condition,
2104
client_object=None):
1969
def handle_ipc(self, source, condition, parent_pipe=None,
1970
proc = None, client_object=None):
1972
gobject.IO_IN: "IN", # There is data to read.
1973
gobject.IO_OUT: "OUT", # Data can be written (without
1975
gobject.IO_PRI: "PRI", # There is urgent data to read.
1976
gobject.IO_ERR: "ERR", # Error condition.
1977
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1978
# broken, usually for pipes and
1981
conditions_string = ' | '.join(name
1983
condition_names.iteritems()
1984
if cond & condition)
2105
1985
# error, or the other end of multiprocessing.Pipe has closed
2106
if condition & (gobject.IO_ERR | gobject.IO_HUP):
1986
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2107
1987
# Wait for other process to exit
2170
def rfc3339_duration_to_delta(duration):
2171
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2173
>>> rfc3339_duration_to_delta("P7D")
2174
datetime.timedelta(7)
2175
>>> rfc3339_duration_to_delta("PT60S")
2176
datetime.timedelta(0, 60)
2177
>>> rfc3339_duration_to_delta("PT60M")
2178
datetime.timedelta(0, 3600)
2179
>>> rfc3339_duration_to_delta("PT24H")
2180
datetime.timedelta(1)
2181
>>> rfc3339_duration_to_delta("P1W")
2182
datetime.timedelta(7)
2183
>>> rfc3339_duration_to_delta("PT5M30S")
2184
datetime.timedelta(0, 330)
2185
>>> rfc3339_duration_to_delta("P1DT3M20S")
2186
datetime.timedelta(1, 200)
2189
# Parsing an RFC 3339 duration with regular expressions is not
2190
# possible - there would have to be multiple places for the same
2191
# values, like seconds. The current code, while more esoteric, is
2192
# cleaner without depending on a parsing library. If Python had a
2193
# built-in library for parsing we would use it, but we'd like to
2194
# avoid excessive use of external libraries.
2196
# New type for defining tokens, syntax, and semantics all-in-one
2197
Token = collections.namedtuple("Token", (
2198
"regexp", # To match token; if "value" is not None, must have
2199
# a "group" containing digits
2200
"value", # datetime.timedelta or None
2201
"followers")) # Tokens valid after this token
2202
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2203
# the "duration" ABNF definition in RFC 3339, Appendix A.
2204
token_end = Token(re.compile(r"$"), None, frozenset())
2205
token_second = Token(re.compile(r"(\d+)S"),
2206
datetime.timedelta(seconds=1),
2207
frozenset((token_end, )))
2208
token_minute = Token(re.compile(r"(\d+)M"),
2209
datetime.timedelta(minutes=1),
2210
frozenset((token_second, token_end)))
2211
token_hour = Token(re.compile(r"(\d+)H"),
2212
datetime.timedelta(hours=1),
2213
frozenset((token_minute, token_end)))
2214
token_time = Token(re.compile(r"T"),
2216
frozenset((token_hour, token_minute,
2218
token_day = Token(re.compile(r"(\d+)D"),
2219
datetime.timedelta(days=1),
2220
frozenset((token_time, token_end)))
2221
token_month = Token(re.compile(r"(\d+)M"),
2222
datetime.timedelta(weeks=4),
2223
frozenset((token_day, token_end)))
2224
token_year = Token(re.compile(r"(\d+)Y"),
2225
datetime.timedelta(weeks=52),
2226
frozenset((token_month, token_end)))
2227
token_week = Token(re.compile(r"(\d+)W"),
2228
datetime.timedelta(weeks=1),
2229
frozenset((token_end, )))
2230
token_duration = Token(re.compile(r"P"), None,
2231
frozenset((token_year, token_month,
2232
token_day, token_time,
2234
# Define starting values
2235
value = datetime.timedelta() # Value so far
2237
followers = frozenset((token_duration, )) # Following valid tokens
2238
s = duration # String left to parse
2239
# Loop until end token is found
2240
while found_token is not token_end:
2241
# Search for any currently valid tokens
2242
for token in followers:
2243
match = token.regexp.match(s)
2244
if match is not None:
2246
if token.value is not None:
2247
# Value found, parse digits
2248
factor = int(match.group(1), 10)
2249
# Add to value so far
2250
value += factor * token.value
2251
# Strip token from string
2252
s = token.regexp.sub("", s, 1)
2255
# Set valid next tokens
2256
followers = found_token.followers
2259
# No currently valid tokens were found
2260
raise ValueError("Invalid RFC 3339 duration: {!r}"
2266
2050
def string_to_delta(interval):
2267
2051
"""Parse a string and return a datetime.timedelta
2366
2144
parser.add_argument("--no-dbus", action="store_false",
2367
2145
dest="use_dbus", help="Do not provide D-Bus"
2368
" system bus interface", default=None)
2146
" system bus interface")
2369
2147
parser.add_argument("--no-ipv6", action="store_false",
2370
dest="use_ipv6", help="Do not use IPv6",
2148
dest="use_ipv6", help="Do not use IPv6")
2372
2149
parser.add_argument("--no-restore", action="store_false",
2373
2150
dest="restore", help="Do not restore stored"
2374
" state", default=None)
2375
parser.add_argument("--socket", type=int,
2376
help="Specify a file descriptor to a network"
2377
" socket to use instead of creating one")
2378
2152
parser.add_argument("--statedir", metavar="DIR",
2379
2153
help="Directory to save/restore state in")
2380
parser.add_argument("--foreground", action="store_true",
2381
help="Run in foreground", default=None)
2382
parser.add_argument("--no-zeroconf", action="store_false",
2383
dest="zeroconf", help="Do not use Zeroconf",
2386
2155
options = parser.parse_args()
2388
2157
if options.check:
2390
fail_count, test_count = doctest.testmod()
2391
sys.exit(os.EX_OK if fail_count == 0 else 1)
2393
2162
# Default values for config file for server-global settings
2394
2163
server_defaults = { "interface": "",
2397
2166
"debug": "False",
2399
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2400
":+SIGN-DSA-SHA256",
2168
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2401
2169
"servicename": "Mandos",
2402
2170
"use_dbus": "True",
2403
2171
"use_ipv6": "True",
2404
2172
"debuglevel": "",
2405
2173
"restore": "True",
2407
"statedir": "/var/lib/mandos",
2408
"foreground": "False",
2174
"statedir": "/var/lib/mandos"
2412
2177
# Parse config file for server-global settings
2413
2178
server_config = configparser.SafeConfigParser(server_defaults)
2414
2179
del server_defaults
2415
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2180
server_config.read(os.path.join(options.configdir,
2416
2182
# Convert the SafeConfigParser object to a dict
2417
2183
server_settings = server_config.defaults()
2418
2184
# Use the appropriate methods on the non-string config options
2419
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2185
for option in ("debug", "use_dbus", "use_ipv6"):
2420
2186
server_settings[option] = server_config.getboolean("DEFAULT",
2422
2188
if server_settings["port"]:
2423
2189
server_settings["port"] = server_config.getint("DEFAULT",
2425
if server_settings["socket"]:
2426
server_settings["socket"] = server_config.getint("DEFAULT",
2428
# Later, stdin will, and stdout and stderr might, be dup'ed
2429
# over with an opened os.devnull. But we don't want this to
2430
# happen with a supplied network socket.
2431
if 0 <= server_settings["socket"] <= 2:
2432
server_settings["socket"] = os.dup(server_settings
2434
2191
del server_config
2436
2193
# Override the settings from the config file with command line
2437
2194
# options, if set.
2438
2195
for option in ("interface", "address", "port", "debug",
2439
"priority", "servicename", "configdir", "use_dbus",
2440
"use_ipv6", "debuglevel", "restore", "statedir",
2441
"socket", "foreground", "zeroconf"):
2196
"priority", "servicename", "configdir",
2197
"use_dbus", "use_ipv6", "debuglevel", "restore",
2442
2199
value = getattr(options, option)
2443
2200
if value is not None:
2444
2201
server_settings[option] = value
2446
2203
# Force all strings to be unicode
2447
2204
for option in server_settings.keys():
2448
if isinstance(server_settings[option], bytes):
2449
server_settings[option] = (server_settings[option]
2451
# Force all boolean options to be boolean
2452
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2453
"foreground", "zeroconf"):
2454
server_settings[option] = bool(server_settings[option])
2455
# Debug implies foreground
2456
if server_settings["debug"]:
2457
server_settings["foreground"] = True
2205
if type(server_settings[option]) is str:
2206
server_settings[option] = unicode(server_settings[option])
2458
2207
# Now we have our good server settings in "server_settings"
2460
2209
##################################################################
2462
if (not server_settings["zeroconf"]
2463
and not (server_settings["port"]
2464
or server_settings["socket"] != "")):
2465
parser.error("Needs port or socket to work without Zeroconf")
2467
2211
# For convenience
2468
2212
debug = server_settings["debug"]
2469
2213
debuglevel = server_settings["debuglevel"]
2498
2240
global mandos_dbus_service
2499
2241
mandos_dbus_service = None
2502
if server_settings["socket"] != "":
2503
socketfd = server_settings["socket"]
2504
tcp_server = MandosServer(
2505
(server_settings["address"], server_settings["port"]),
2507
interface=(server_settings["interface"] or None),
2509
gnutls_priority=server_settings["priority"],
2513
pidfilename = "/run/mandos.pid"
2514
if not os.path.isdir("/run/."):
2515
pidfilename = "/var/run/mandos.pid"
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"
2518
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2519
except IOError as e:
2520
logger.error("Could not open file %r", pidfilename,
2255
pidfile = open(pidfilename, "w")
2257
logger.error("Could not open file %r", pidfilename)
2523
for name in ("_mandos", "mandos", "nobody"):
2260
uid = pwd.getpwnam("_mandos").pw_uid
2261
gid = pwd.getpwnam("_mandos").pw_gid
2525
uid = pwd.getpwnam(name).pw_uid
2526
gid = pwd.getpwnam(name).pw_gid
2264
uid = pwd.getpwnam("mandos").pw_uid
2265
gid = pwd.getpwnam("mandos").pw_gid
2528
2266
except KeyError:
2268
uid = pwd.getpwnam("nobody").pw_uid
2269
gid = pwd.getpwnam("nobody").pw_gid
2536
2276
except OSError as error:
2537
if error.errno != errno.EPERM:
2277
if error[0] != errno.EPERM:
2541
2281
# Enable all possible GnuTLS debugging
2577
2315
bus_name = dbus.service.BusName("se.recompile.Mandos",
2580
old_bus_name = dbus.service.BusName(
2581
"se.bsnet.fukt.Mandos", bus,
2583
except dbus.exceptions.DBusException as e:
2584
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")
2585
2322
use_dbus = False
2586
2323
server_settings["use_dbus"] = False
2587
2324
tcp_server.use_dbus = False
2589
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2590
service = AvahiServiceToSyslog(
2591
name = server_settings["servicename"],
2592
servicetype = "_mandos._tcp",
2593
protocol = protocol,
2595
if server_settings["interface"]:
2596
service.interface = if_nametoindex(
2597
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"])))
2599
2334
global multiprocessing_manager
2600
2335
multiprocessing_manager = multiprocessing.Manager()
2602
2337
client_class = Client
2604
client_class = functools.partial(ClientDBus, bus = bus)
2339
client_class = functools.partial(ClientDBusTransitional,
2606
2342
client_settings = Client.config_parser(client_config)
2607
2343
old_client_settings = {}
2608
2344
clients_data = {}
2610
# This is used to redirect stdout and stderr for checker processes
2612
wnull = open(os.devnull, "w") # A writable /dev/null
2613
# Only used if server is running in foreground but not in debug
2615
if debug or not foreground:
2618
2346
# Get client data and settings from last running state.
2619
2347
if server_settings["restore"]:
2621
2349
with open(stored_state_path, "rb") as stored_state:
2622
clients_data, old_client_settings = pickle.load(
2350
clients_data, old_client_settings = (pickle.load
2624
2352
os.remove(stored_state_path)
2625
2353
except IOError as e:
2626
if e.errno == errno.ENOENT:
2627
logger.warning("Could not load persistent state:"
2628
" {}".format(os.strerror(e.errno)))
2630
logger.critical("Could not load persistent state:",
2354
logger.warning("Could not load persistent state: {0}"
2356
if e.errno != errno.ENOENT:
2633
2358
except EOFError as e:
2634
2359
logger.warning("Could not load persistent state: "
2360
"EOFError: {0}".format(e))
2638
2362
with PGPEngine() as pgp:
2639
for client_name, client in clients_data.items():
2640
# Skip removed clients
2641
if client_name not in client_settings:
2363
for client_name, client in clients_data.iteritems():
2644
2364
# Decide which value to use after restoring saved state.
2645
2365
# We have three different values: Old config file,
2646
2366
# new config file, and saved state.
2667
2387
if datetime.datetime.utcnow() >= client["expires"]:
2668
2388
if not client["last_checked_ok"]:
2669
2389
logger.warning(
2670
"disabling client {} - Client never "
2671
"performed a successful checker".format(
2390
"disabling client {0} - Client never "
2391
"performed a successful checker"
2392
.format(client_name))
2673
2393
client["enabled"] = False
2674
2394
elif client["last_checker_status"] != 0:
2675
2395
logger.warning(
2676
"disabling client {} - Client last"
2677
" checker failed with error code"
2680
client["last_checker_status"]))
2396
"disabling client {0} - Client "
2397
"last checker failed with error code {1}"
2398
.format(client_name,
2399
client["last_checker_status"]))
2681
2400
client["enabled"] = False
2683
client["expires"] = (
2684
datetime.datetime.utcnow()
2685
+ client["timeout"])
2402
client["expires"] = (datetime.datetime
2404
+ client["timeout"])
2686
2405
logger.debug("Last checker succeeded,"
2687
" keeping {} enabled".format(
2406
" keeping {0} enabled"
2407
.format(client_name))
2690
client["secret"] = pgp.decrypt(
2691
client["encrypted_secret"],
2692
client_settings[client_name]["secret"])
2409
client["secret"] = (
2410
pgp.decrypt(client["encrypted_secret"],
2411
client_settings[client_name]
2693
2413
except PGPError:
2694
2414
# If decryption fails, we use secret from new settings
2695
logger.debug("Failed to decrypt {} old secret".format(
2697
client["secret"] = (client_settings[client_name]
2415
logger.debug("Failed to decrypt {0} old secret"
2416
.format(client_name))
2417
client["secret"] = (
2418
client_settings[client_name]["secret"])
2700
2421
# Add/remove clients based on new changes made to config
2701
2422
for client_name in (set(old_client_settings)
2704
2425
for client_name in (set(client_settings)
2705
2426
- set(old_client_settings)):
2706
2427
clients_data[client_name] = client_settings[client_name]
2708
2429
# Create all client objects
2709
for client_name, client in clients_data.items():
2430
for client_name, client in clients_data.iteritems():
2710
2431
tcp_server.clients[client_name] = client_class(
2713
server_settings = server_settings)
2432
name = client_name, settings = client)
2715
2434
if not tcp_server.clients:
2716
2435
logger.warning("No clients defined")
2719
if pidfile is not None:
2723
print(pid, file=pidfile)
2725
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
2728
2449
del pidfilename
2450
signal.signal(signal.SIGINT, signal.SIG_IGN)
2730
2452
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2731
2453
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2735
@alternate_dbus_interfaces(
2736
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
2737
2456
class MandosDBusService(DBusObjectWithProperties):
2738
2457
"""A D-Bus proxy object"""
2740
2458
def __init__(self):
2741
2459
dbus.service.Object.__init__(self, bus, "/")
2743
2460
_interface = "se.recompile.Mandos"
2745
2462
@dbus_interface_annotations(_interface)
2746
2463
def _foo(self):
2748
"org.freedesktop.DBus.Property.EmitsChangedSignal":
2464
return { "org.freedesktop.DBus.Property"
2465
".EmitsChangedSignal":
2751
2468
@dbus.service.signal(_interface, signature="o")
2752
2469
def ClientAdded(self, objpath):
2885
2600
tcp_server.server_activate()
2887
2602
# Find out what port we got
2889
service.port = tcp_server.socket.getsockname()[1]
2603
service.port = tcp_server.socket.getsockname()[1]
2891
2605
logger.info("Now listening on address %r, port %d,"
2892
" flowinfo %d, scope_id %d",
2893
*tcp_server.socket.getsockname())
2606
" flowinfo %d, scope_id %d"
2607
% tcp_server.socket.getsockname())
2895
logger.info("Now listening on address %r, port %d",
2896
*tcp_server.socket.getsockname())
2609
logger.info("Now listening on address %r, port %d"
2610
% tcp_server.socket.getsockname())
2898
2612
#service.interface = tcp_server.socket.getsockname()[3]
2902
# From the Avahi example code
2905
except dbus.exceptions.DBusException as error:
2906
logger.critical("D-Bus Exception", exc_info=error)
2909
# End of Avahi example code
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
2911
2624
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2912
2625
lambda *args, **kwargs: