81
81
SO_BINDTODEVICE = None
86
#logger = logging.getLogger(u'mandos')
87
logger = logging.Logger(u'mandos')
86
#logger = logging.getLogger('mandos')
87
logger = logging.Logger('mandos')
88
88
syslogger = (logging.handlers.SysLogHandler
89
89
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
90
address = u"/dev/log"))
90
address = "/dev/log"))
91
91
syslogger.setFormatter(logging.Formatter
92
(u'Mandos [%(process)d]: %(levelname)s:'
92
('Mandos [%(process)d]: %(levelname)s:'
94
94
logger.addHandler(syslogger)
96
96
console = logging.StreamHandler()
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
97
console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'
100
100
logger.addHandler(console)
102
102
class AvahiError(Exception):
153
153
def rename(self):
154
154
"""Derived from the Avahi example code"""
155
155
if self.rename_count >= self.max_renames:
156
logger.critical(u"No suitable Zeroconf service name found"
157
u" after %i retries, exiting.",
156
logger.critical("No suitable Zeroconf service name found"
157
" after %i retries, exiting.",
158
158
self.rename_count)
159
raise AvahiServiceError(u"Too many renames")
159
raise AvahiServiceError("Too many renames")
160
160
self.name = unicode(self.server.GetAlternativeServiceName(self.name))
161
logger.info(u"Changing Zeroconf service name to %r ...",
161
logger.info("Changing Zeroconf service name to %r ...",
163
163
syslogger.setFormatter(logging.Formatter
164
(u'Mandos (%s) [%%(process)d]:'
165
u' %%(levelname)s: %%(message)s'
164
('Mandos (%s) [%%(process)d]:'
165
' %%(levelname)s: %%(message)s'
170
170
except dbus.exceptions.DBusException, error:
171
logger.critical(u"DBusException: %s", error)
171
logger.critical("DBusException: %s", error)
174
174
self.rename_count += 1
199
199
self.group.Commit()
200
200
def entry_group_state_changed(self, state, error):
201
201
"""Derived from the Avahi example code"""
202
logger.debug(u"Avahi entry group state change: %i", state)
202
logger.debug("Avahi entry group state change: %i", state)
204
204
if state == avahi.ENTRY_GROUP_ESTABLISHED:
205
logger.debug(u"Zeroconf service established.")
205
logger.debug("Zeroconf service established.")
206
206
elif state == avahi.ENTRY_GROUP_COLLISION:
207
logger.info(u"Zeroconf service name collision.")
207
logger.info("Zeroconf service name collision.")
209
209
elif state == avahi.ENTRY_GROUP_FAILURE:
210
logger.critical(u"Avahi: Error in group state changed %s",
210
logger.critical("Avahi: Error in group state changed %s",
212
raise AvahiGroupError(u"State changed: %s"
212
raise AvahiGroupError("State changed: %s"
213
213
% unicode(error))
214
214
def cleanup(self):
215
215
"""Derived from the Avahi example code"""
272
272
runtime_expansions: Allowed attributes for runtime expansion.
275
runtime_expansions = (u"approval_delay", u"approval_duration",
276
u"created", u"enabled", u"fingerprint",
277
u"host", u"interval", u"last_checked_ok",
278
u"last_enabled", u"name", u"timeout")
275
runtime_expansions = ("approval_delay", "approval_duration",
276
"created", "enabled", "fingerprint",
277
"host", "interval", "last_checked_ok",
278
"last_enabled", "name", "timeout")
281
281
def _timedelta_to_milliseconds(td):
303
303
if config is None:
305
logger.debug(u"Creating client %r", self.name)
305
logger.debug("Creating client %r", self.name)
306
306
# Uppercase and remove spaces from fingerprint for later
307
307
# comparison purposes with return value from the fingerprint()
309
self.fingerprint = (config[u"fingerprint"].upper()
311
logger.debug(u" Fingerprint: %s", self.fingerprint)
312
if u"secret" in config:
313
self.secret = config[u"secret"].decode(u"base64")
314
elif u"secfile" in config:
309
self.fingerprint = (config["fingerprint"].upper()
311
logger.debug(" Fingerprint: %s", self.fingerprint)
312
if "secret" in config:
313
self.secret = config["secret"].decode("base64")
314
elif "secfile" in config:
315
315
with open(os.path.expanduser(os.path.expandvars
316
(config[u"secfile"])),
316
(config["secfile"])),
318
318
self.secret = secfile.read()
320
raise TypeError(u"No secret or secfile for client %s"
320
raise TypeError("No secret or secfile for client %s"
322
self.host = config.get(u"host", u"")
322
self.host = config.get("host", "")
323
323
self.created = datetime.datetime.utcnow()
324
324
self.enabled = False
325
325
self.last_approval_request = None
326
326
self.last_enabled = None
327
327
self.last_checked_ok = None
328
self.timeout = string_to_delta(config[u"timeout"])
329
self.interval = string_to_delta(config[u"interval"])
328
self.timeout = string_to_delta(config["timeout"])
329
self.interval = string_to_delta(config["interval"])
330
330
self.disable_hook = disable_hook
331
331
self.checker = None
332
332
self.checker_initiator_tag = None
333
333
self.disable_initiator_tag = None
334
334
self.checker_callback_tag = None
335
self.checker_command = config[u"checker"]
335
self.checker_command = config["checker"]
336
336
self.current_checker_command = None
337
337
self.last_connect = None
338
338
self._approved = None
339
self.approved_by_default = config.get(u"approved_by_default",
339
self.approved_by_default = config.get("approved_by_default",
341
341
self.approvals_pending = 0
342
342
self.approval_delay = string_to_delta(
343
config[u"approval_delay"])
343
config["approval_delay"])
344
344
self.approval_duration = string_to_delta(
345
config[u"approval_duration"])
345
config["approval_duration"])
346
346
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
348
348
def send_changedstate(self):
373
373
def disable(self, quiet=True):
374
374
"""Disable this client."""
375
if not getattr(self, u"enabled", False):
375
if not getattr(self, "enabled", False):
378
378
self.send_changedstate()
380
logger.info(u"Disabling client %s", self.name)
381
if getattr(self, u"disable_initiator_tag", False):
380
logger.info("Disabling client %s", self.name)
381
if getattr(self, "disable_initiator_tag", False):
382
382
gobject.source_remove(self.disable_initiator_tag)
383
383
self.disable_initiator_tag = None
384
if getattr(self, u"checker_initiator_tag", False):
384
if getattr(self, "checker_initiator_tag", False):
385
385
gobject.source_remove(self.checker_initiator_tag)
386
386
self.checker_initiator_tag = None
387
387
self.stop_checker()
463
463
# Escape attributes for the shell
464
464
escaped_attrs = dict(
466
re.escape(unicode(str(getattr(self, attr, u"")),
466
re.escape(unicode(str(getattr(self, attr, "")),
470
470
self.runtime_expansions)
473
473
command = self.checker_command % escaped_attrs
474
474
except TypeError, error:
475
logger.error(u'Could not format string "%s":'
476
u' %s', self.checker_command, error)
475
logger.error('Could not format string "%s":'
476
' %s', self.checker_command, error)
477
477
return True # Try again later
478
478
self.current_checker_command = command
480
logger.info(u"Starting checker %r for %s",
480
logger.info("Starting checker %r for %s",
481
481
command, self.name)
482
482
# We don't need to redirect stdout and stderr, since
483
483
# in normal mode, that is already done by daemon(),
535
535
# Encoding deeply encoded byte arrays is not supported yet by the
536
536
# "Set" method, so we fail early here:
537
if byte_arrays and signature != u"ay":
538
raise ValueError(u"Byte arrays not supported for non-'ay'"
539
u" signature %r" % signature)
537
if byte_arrays and signature != "ay":
538
raise ValueError("Byte arrays not supported for non-'ay'"
539
" signature %r" % signature)
540
540
def decorator(func):
541
541
func._dbus_is_property = True
542
542
func._dbus_interface = dbus_interface
543
543
func._dbus_signature = signature
544
544
func._dbus_access = access
545
545
func._dbus_name = func.__name__
546
if func._dbus_name.endswith(u"_dbus_property"):
546
if func._dbus_name.endswith("_dbus_property"):
547
547
func._dbus_name = func._dbus_name[:-14]
548
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
548
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
605
605
# No such property
606
raise DBusPropertyNotFound(self.dbus_object_path + u":"
607
+ interface_name + u"."
606
raise DBusPropertyNotFound(self.dbus_object_path + ":"
607
+ interface_name + "."
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
612
612
def Get(self, interface_name, property_name):
613
613
"""Standard D-Bus property Get() method, see D-Bus standard.
615
615
prop = self._get_dbus_property(interface_name, property_name)
616
if prop._dbus_access == u"write":
616
if prop._dbus_access == "write":
617
617
raise DBusPropertyAccessException(property_name)
619
if not hasattr(value, u"variant_level"):
619
if not hasattr(value, "variant_level"):
621
621
return type(value)(value, variant_level=value.variant_level+1)
623
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
623
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
624
624
def Set(self, interface_name, property_name, value):
625
625
"""Standard D-Bus property Set() method, see D-Bus standard.
627
627
prop = self._get_dbus_property(interface_name, property_name)
628
if prop._dbus_access == u"read":
628
if prop._dbus_access == "read":
629
629
raise DBusPropertyAccessException(property_name)
630
if prop._dbus_get_args_options[u"byte_arrays"]:
630
if prop._dbus_get_args_options["byte_arrays"]:
631
631
# The byte_arrays option is not supported yet on
632
632
# signatures other than "ay".
633
if prop._dbus_signature != u"ay":
633
if prop._dbus_signature != "ay":
635
635
value = dbus.ByteArray(''.join(unichr(byte)
636
636
for byte in value))
639
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
640
out_signature=u"a{sv}")
639
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
640
out_signature="a{sv}")
641
641
def GetAll(self, interface_name):
642
642
"""Standard D-Bus property GetAll() method, see D-Bus
651
651
# Interface non-empty but did not match
653
653
# Ignore write-only properties
654
if prop._dbus_access == u"write":
654
if prop._dbus_access == "write":
657
if not hasattr(value, u"variant_level"):
657
if not hasattr(value, "variant_level"):
658
658
all[name] = value
660
660
all[name] = type(value)(value, variant_level=
661
661
value.variant_level+1)
662
return dbus.Dictionary(all, signature=u"sv")
662
return dbus.Dictionary(all, signature="sv")
664
664
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
666
path_keyword=u'object_path',
667
connection_keyword=u'connection')
666
path_keyword='object_path',
667
connection_keyword='connection')
668
668
def Introspect(self, object_path, connection):
669
669
"""Standard D-Bus method, overloaded to insert property tags.
674
674
document = xml.dom.minidom.parseString(xmlstring)
675
675
def make_tag(document, name, prop):
676
e = document.createElement(u"property")
677
e.setAttribute(u"name", name)
678
e.setAttribute(u"type", prop._dbus_signature)
679
e.setAttribute(u"access", prop._dbus_access)
676
e = document.createElement("property")
677
e.setAttribute("name", name)
678
e.setAttribute("type", prop._dbus_signature)
679
e.setAttribute("access", prop._dbus_access)
681
for if_tag in document.getElementsByTagName(u"interface"):
681
for if_tag in document.getElementsByTagName("interface"):
682
682
for tag in (make_tag(document, name, prop)
684
684
in self._get_all_dbus_properties()
685
685
if prop._dbus_interface
686
== if_tag.getAttribute(u"name")):
686
== if_tag.getAttribute("name")):
687
687
if_tag.appendChild(tag)
688
688
# Add the names to the return values for the
689
689
# "org.freedesktop.DBus.Properties" methods
690
if (if_tag.getAttribute(u"name")
691
== u"org.freedesktop.DBus.Properties"):
692
for cn in if_tag.getElementsByTagName(u"method"):
693
if cn.getAttribute(u"name") == u"Get":
694
for arg in cn.getElementsByTagName(u"arg"):
695
if (arg.getAttribute(u"direction")
697
arg.setAttribute(u"name", u"value")
698
elif cn.getAttribute(u"name") == u"GetAll":
699
for arg in cn.getElementsByTagName(u"arg"):
700
if (arg.getAttribute(u"direction")
702
arg.setAttribute(u"name", u"props")
703
xmlstring = document.toxml(u"utf-8")
690
if (if_tag.getAttribute("name")
691
== "org.freedesktop.DBus.Properties"):
692
for cn in if_tag.getElementsByTagName("method"):
693
if cn.getAttribute("name") == "Get":
694
for arg in cn.getElementsByTagName("arg"):
695
if (arg.getAttribute("direction")
697
arg.setAttribute("name", "value")
698
elif cn.getAttribute("name") == "GetAll":
699
for arg in cn.getElementsByTagName("arg"):
700
if (arg.getAttribute("direction")
702
arg.setAttribute("name", "props")
703
xmlstring = document.toxml("utf-8")
704
704
document.unlink()
705
705
except (AttributeError, xml.dom.DOMException,
706
706
xml.parsers.expat.ExpatError), error:
707
logger.error(u"Failed to override Introspection method",
707
logger.error("Failed to override Introspection method",
759
759
variant_level=variant_level)
761
761
def enable(self):
762
oldstate = getattr(self, u"enabled", False)
762
oldstate = getattr(self, "enabled", False)
763
763
r = Client.enable(self)
764
764
if oldstate != self.enabled:
765
765
# Emit D-Bus signals
766
self.PropertyChanged(dbus.String(u"Enabled"),
766
self.PropertyChanged(dbus.String("Enabled"),
767
767
dbus.Boolean(True, variant_level=1))
768
768
self.PropertyChanged(
769
dbus.String(u"LastEnabled"),
769
dbus.String("LastEnabled"),
770
770
self._datetime_to_dbus(self.last_enabled,
771
771
variant_level=1))
774
774
def disable(self, quiet = False):
775
oldstate = getattr(self, u"enabled", False)
775
oldstate = getattr(self, "enabled", False)
776
776
r = Client.disable(self, quiet=quiet)
777
777
if not quiet and oldstate != self.enabled:
778
778
# Emit D-Bus signal
779
self.PropertyChanged(dbus.String(u"Enabled"),
779
self.PropertyChanged(dbus.String("Enabled"),
780
780
dbus.Boolean(False, variant_level=1))
842
842
# Emit D-Bus signal
843
843
self.CheckerStarted(self.current_checker_command)
844
844
self.PropertyChanged(
845
dbus.String(u"CheckerRunning"),
845
dbus.String("CheckerRunning"),
846
846
dbus.Boolean(True, variant_level=1))
849
849
def stop_checker(self, *args, **kwargs):
850
old_checker = getattr(self, u"checker", None)
850
old_checker = getattr(self, "checker", None)
851
851
r = Client.stop_checker(self, *args, **kwargs)
852
852
if (old_checker is not None
853
and getattr(self, u"checker", None) is None):
854
self.PropertyChanged(dbus.String(u"CheckerRunning"),
853
and getattr(self, "checker", None) is None):
854
self.PropertyChanged(dbus.String("CheckerRunning"),
855
855
dbus.Boolean(False, variant_level=1))
870
870
## D-Bus methods, signals & properties
871
_interface = u"se.bsnet.fukt.Mandos.Client"
871
_interface = "se.bsnet.fukt.Mandos.Client"
875
875
# CheckerCompleted - signal
876
@dbus.service.signal(_interface, signature=u"nxs")
876
@dbus.service.signal(_interface, signature="nxs")
877
877
def CheckerCompleted(self, exitcode, waitstatus, command):
881
881
# CheckerStarted - signal
882
@dbus.service.signal(_interface, signature=u"s")
882
@dbus.service.signal(_interface, signature="s")
883
883
def CheckerStarted(self, command):
887
887
# PropertyChanged - signal
888
@dbus.service.signal(_interface, signature=u"sv")
888
@dbus.service.signal(_interface, signature="sv")
889
889
def PropertyChanged(self, property, value):
951
951
# ApprovalPending - property
952
@dbus_service_property(_interface, signature=u"b", access=u"read")
952
@dbus_service_property(_interface, signature="b", access="read")
953
953
def ApprovalPending_dbus_property(self):
954
954
return dbus.Boolean(bool(self.approvals_pending))
956
956
# ApprovedByDefault - property
957
@dbus_service_property(_interface, signature=u"b",
957
@dbus_service_property(_interface, signature="b",
959
959
def ApprovedByDefault_dbus_property(self, value=None):
960
960
if value is None: # get
961
961
return dbus.Boolean(self.approved_by_default)
962
962
self.approved_by_default = bool(value)
963
963
# Emit D-Bus signal
964
self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
964
self.PropertyChanged(dbus.String("ApprovedByDefault"),
965
965
dbus.Boolean(value, variant_level=1))
967
967
# ApprovalDelay - property
968
@dbus_service_property(_interface, signature=u"t",
968
@dbus_service_property(_interface, signature="t",
970
970
def ApprovalDelay_dbus_property(self, value=None):
971
971
if value is None: # get
972
972
return dbus.UInt64(self.approval_delay_milliseconds())
973
973
self.approval_delay = datetime.timedelta(0, 0, 0, value)
974
974
# Emit D-Bus signal
975
self.PropertyChanged(dbus.String(u"ApprovalDelay"),
975
self.PropertyChanged(dbus.String("ApprovalDelay"),
976
976
dbus.UInt64(value, variant_level=1))
978
978
# ApprovalDuration - property
979
@dbus_service_property(_interface, signature=u"t",
979
@dbus_service_property(_interface, signature="t",
981
981
def ApprovalDuration_dbus_property(self, value=None):
982
982
if value is None: # get
983
983
return dbus.UInt64(self._timedelta_to_milliseconds(
984
984
self.approval_duration))
985
985
self.approval_duration = datetime.timedelta(0, 0, 0, value)
986
986
# Emit D-Bus signal
987
self.PropertyChanged(dbus.String(u"ApprovalDuration"),
987
self.PropertyChanged(dbus.String("ApprovalDuration"),
988
988
dbus.UInt64(value, variant_level=1))
990
990
# Name - property
991
@dbus_service_property(_interface, signature=u"s", access=u"read")
991
@dbus_service_property(_interface, signature="s", access="read")
992
992
def Name_dbus_property(self):
993
993
return dbus.String(self.name)
995
995
# Fingerprint - property
996
@dbus_service_property(_interface, signature=u"s", access=u"read")
996
@dbus_service_property(_interface, signature="s", access="read")
997
997
def Fingerprint_dbus_property(self):
998
998
return dbus.String(self.fingerprint)
1000
1000
# Host - property
1001
@dbus_service_property(_interface, signature=u"s",
1002
access=u"readwrite")
1001
@dbus_service_property(_interface, signature="s",
1003
1003
def Host_dbus_property(self, value=None):
1004
1004
if value is None: # get
1005
1005
return dbus.String(self.host)
1006
1006
self.host = value
1007
1007
# Emit D-Bus signal
1008
self.PropertyChanged(dbus.String(u"Host"),
1008
self.PropertyChanged(dbus.String("Host"),
1009
1009
dbus.String(value, variant_level=1))
1011
1011
# Created - property
1012
@dbus_service_property(_interface, signature=u"s", access=u"read")
1012
@dbus_service_property(_interface, signature="s", access="read")
1013
1013
def Created_dbus_property(self):
1014
1014
return dbus.String(self._datetime_to_dbus(self.created))
1016
1016
# LastEnabled - property
1017
@dbus_service_property(_interface, signature=u"s", access=u"read")
1017
@dbus_service_property(_interface, signature="s", access="read")
1018
1018
def LastEnabled_dbus_property(self):
1019
1019
if self.last_enabled is None:
1020
return dbus.String(u"")
1020
return dbus.String("")
1021
1021
return dbus.String(self._datetime_to_dbus(self.last_enabled))
1023
1023
# Enabled - property
1024
@dbus_service_property(_interface, signature=u"b",
1025
access=u"readwrite")
1024
@dbus_service_property(_interface, signature="b",
1026
1026
def Enabled_dbus_property(self, value=None):
1027
1027
if value is None: # get
1028
1028
return dbus.Boolean(self.enabled)
1034
1034
# LastCheckedOK - property
1035
@dbus_service_property(_interface, signature=u"s",
1036
access=u"readwrite")
1035
@dbus_service_property(_interface, signature="s",
1037
1037
def LastCheckedOK_dbus_property(self, value=None):
1038
1038
if value is not None:
1039
1039
self.checked_ok()
1041
1041
if self.last_checked_ok is None:
1042
return dbus.String(u"")
1042
return dbus.String("")
1043
1043
return dbus.String(self._datetime_to_dbus(self
1044
1044
.last_checked_ok))
1046
1046
# LastApprovalRequest - property
1047
@dbus_service_property(_interface, signature=u"s", access=u"read")
1047
@dbus_service_property(_interface, signature="s", access="read")
1048
1048
def LastApprovalRequest_dbus_property(self):
1049
1049
if self.last_approval_request is None:
1050
return dbus.String(u"")
1050
return dbus.String("")
1051
1051
return dbus.String(self.
1052
1052
_datetime_to_dbus(self
1053
1053
.last_approval_request))
1055
1055
# Timeout - property
1056
@dbus_service_property(_interface, signature=u"t",
1057
access=u"readwrite")
1056
@dbus_service_property(_interface, signature="t",
1058
1058
def Timeout_dbus_property(self, value=None):
1059
1059
if value is None: # get
1060
1060
return dbus.UInt64(self.timeout_milliseconds())
1061
1061
self.timeout = datetime.timedelta(0, 0, 0, value)
1062
1062
# Emit D-Bus signal
1063
self.PropertyChanged(dbus.String(u"Timeout"),
1063
self.PropertyChanged(dbus.String("Timeout"),
1064
1064
dbus.UInt64(value, variant_level=1))
1065
if getattr(self, u"disable_initiator_tag", None) is None:
1065
if getattr(self, "disable_initiator_tag", None) is None:
1067
1067
# Reschedule timeout
1068
1068
gobject.source_remove(self.disable_initiator_tag)
1081
1081
(time_to_die, self.disable))
1083
1083
# Interval - property
1084
@dbus_service_property(_interface, signature=u"t",
1085
access=u"readwrite")
1084
@dbus_service_property(_interface, signature="t",
1086
1086
def Interval_dbus_property(self, value=None):
1087
1087
if value is None: # get
1088
1088
return dbus.UInt64(self.interval_milliseconds())
1089
1089
self.interval = datetime.timedelta(0, 0, 0, value)
1090
1090
# Emit D-Bus signal
1091
self.PropertyChanged(dbus.String(u"Interval"),
1091
self.PropertyChanged(dbus.String("Interval"),
1092
1092
dbus.UInt64(value, variant_level=1))
1093
if getattr(self, u"checker_initiator_tag", None) is None:
1093
if getattr(self, "checker_initiator_tag", None) is None:
1095
1095
# Reschedule checker run
1096
1096
gobject.source_remove(self.checker_initiator_tag)
1099
1099
self.start_checker() # Start one now, too
1101
1101
# Checker - property
1102
@dbus_service_property(_interface, signature=u"s",
1103
access=u"readwrite")
1102
@dbus_service_property(_interface, signature="s",
1104
1104
def Checker_dbus_property(self, value=None):
1105
1105
if value is None: # get
1106
1106
return dbus.String(self.checker_command)
1107
1107
self.checker_command = value
1108
1108
# Emit D-Bus signal
1109
self.PropertyChanged(dbus.String(u"Checker"),
1109
self.PropertyChanged(dbus.String("Checker"),
1110
1110
dbus.String(self.checker_command,
1111
1111
variant_level=1))
1113
1113
# CheckerRunning - property
1114
@dbus_service_property(_interface, signature=u"b",
1115
access=u"readwrite")
1114
@dbus_service_property(_interface, signature="b",
1116
1116
def CheckerRunning_dbus_property(self, value=None):
1117
1117
if value is None: # get
1118
1118
return dbus.Boolean(self.checker is not None)
1138
1138
class ProxyClient(object):
1139
1139
def __init__(self, child_pipe, fpr, address):
1140
1140
self._pipe = child_pipe
1141
self._pipe.send((u'init', fpr, address))
1141
self._pipe.send(('init', fpr, address))
1142
1142
if not self._pipe.recv():
1143
1143
raise KeyError()
1145
1145
def __getattribute__(self, name):
1146
if(name == u'_pipe'):
1146
if(name == '_pipe'):
1147
1147
return super(ProxyClient, self).__getattribute__(name)
1148
self._pipe.send((u'getattr', name))
1148
self._pipe.send(('getattr', name))
1149
1149
data = self._pipe.recv()
1150
if data[0] == u'data':
1150
if data[0] == 'data':
1152
if data[0] == u'function':
1152
if data[0] == 'function':
1153
1153
def func(*args, **kwargs):
1154
self._pipe.send((u'funcall', name, args, kwargs))
1154
self._pipe.send(('funcall', name, args, kwargs))
1155
1155
return self._pipe.recv()[1]
1158
1158
def __setattr__(self, name, value):
1159
if(name == u'_pipe'):
1159
if(name == '_pipe'):
1160
1160
return super(ProxyClient, self).__setattr__(name, value)
1161
self._pipe.send((u'setattr', name, value))
1161
self._pipe.send(('setattr', name, value))
1164
1164
class ClientHandler(socketserver.BaseRequestHandler, object):
1184
1184
# no X.509 keys are added to it. Therefore, we can use it
1185
1185
# here despite using OpenPGP certificates.
1187
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1188
# u"+AES-256-CBC", u"+SHA1",
1189
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1187
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1188
# "+AES-256-CBC", "+SHA1",
1189
# "+COMP-NULL", "+CTYPE-OPENPGP",
1191
1191
# Use a fallback default, since this MUST be set.
1192
1192
priority = self.server.gnutls_priority
1193
1193
if priority is None:
1194
priority = u"NORMAL"
1195
1195
(gnutls.library.functions
1196
1196
.gnutls_priority_set_direct(session._c_object,
1197
1197
priority, None))
1199
1199
# Start communication using the Mandos protocol
1200
1200
# Get protocol number
1201
1201
line = self.request.makefile().readline()
1202
logger.debug(u"Protocol version: %r", line)
1202
logger.debug("Protocol version: %r", line)
1204
1204
if int(line.strip().split()[0]) > 1:
1205
1205
raise RuntimeError
1206
1206
except (ValueError, IndexError, RuntimeError), error:
1207
logger.error(u"Unknown protocol version: %s", error)
1207
logger.error("Unknown protocol version: %s", error)
1210
1210
# Start GnuTLS connection
1212
1212
session.handshake()
1213
1213
except gnutls.errors.GNUTLSError, error:
1214
logger.warning(u"Handshake failed: %s", error)
1214
logger.warning("Handshake failed: %s", error)
1215
1215
# Do not run session.bye() here: the session is not
1216
1216
# established. Just abandon the request.
1218
logger.debug(u"Handshake succeeded")
1218
logger.debug("Handshake succeeded")
1220
1220
approval_required = False
1432
1432
bind to an address or port if they were not specified."""
1433
1433
if self.interface is not None:
1434
1434
if SO_BINDTODEVICE is None:
1435
logger.error(u"SO_BINDTODEVICE does not exist;"
1436
u" cannot bind to interface %s",
1435
logger.error("SO_BINDTODEVICE does not exist;"
1436
" cannot bind to interface %s",
1437
1437
self.interface)
1440
1440
self.socket.setsockopt(socket.SOL_SOCKET,
1441
1441
SO_BINDTODEVICE,
1442
1442
str(self.interface
1444
1444
except socket.error, error:
1445
1445
if error[0] == errno.EPERM:
1446
logger.error(u"No permission to"
1447
u" bind to interface %s",
1446
logger.error("No permission to"
1447
" bind to interface %s",
1448
1448
self.interface)
1449
1449
elif error[0] == errno.ENOPROTOOPT:
1450
logger.error(u"SO_BINDTODEVICE not available;"
1451
u" cannot bind to interface %s",
1450
logger.error("SO_BINDTODEVICE not available;"
1451
" cannot bind to interface %s",
1452
1452
self.interface)
1511
1511
def handle_ipc(self, source, condition, parent_pipe=None,
1512
1512
client_object=None):
1513
1513
condition_names = {
1514
gobject.IO_IN: u"IN", # There is data to read.
1515
gobject.IO_OUT: u"OUT", # Data can be written (without
1514
gobject.IO_IN: "IN", # There is data to read.
1515
gobject.IO_OUT: "OUT", # Data can be written (without
1517
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1518
gobject.IO_ERR: u"ERR", # Error condition.
1519
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1517
gobject.IO_PRI: "PRI", # There is urgent data to read.
1518
gobject.IO_ERR: "ERR", # Error condition.
1519
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1520
1520
# broken, usually for pipes and
1523
conditions_string = u' | '.join(name
1523
conditions_string = ' | '.join(name
1524
1524
for cond, name in
1525
1525
condition_names.iteritems()
1526
1526
if cond & condition)
1557
1557
parent_pipe.send(True)
1558
1558
# remove the old hook in favor of the new above hook on same fileno
1560
if command == u'funcall':
1560
if command == 'funcall':
1561
1561
funcname = request[1]
1562
1562
args = request[2]
1563
1563
kwargs = request[3]
1565
parent_pipe.send((u'data', getattr(client_object, funcname)(*args, **kwargs)))
1565
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1567
if command == u'getattr':
1567
if command == 'getattr':
1568
1568
attrname = request[1]
1569
1569
if callable(client_object.__getattribute__(attrname)):
1570
parent_pipe.send((u'function',))
1570
parent_pipe.send(('function',))
1572
parent_pipe.send((u'data', client_object.__getattribute__(attrname)))
1572
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1574
if command == u'setattr':
1574
if command == 'setattr':
1575
1575
attrname = request[1]
1576
1576
value = request[2]
1577
1577
setattr(client_object, attrname, value)
1582
1582
def string_to_delta(interval):
1583
1583
"""Parse a string and return a datetime.timedelta
1585
>>> string_to_delta(u'7d')
1585
>>> string_to_delta('7d')
1586
1586
datetime.timedelta(7)
1587
>>> string_to_delta(u'60s')
1587
>>> string_to_delta('60s')
1588
1588
datetime.timedelta(0, 60)
1589
>>> string_to_delta(u'60m')
1589
>>> string_to_delta('60m')
1590
1590
datetime.timedelta(0, 3600)
1591
>>> string_to_delta(u'24h')
1591
>>> string_to_delta('24h')
1592
1592
datetime.timedelta(1)
1593
>>> string_to_delta(u'1w')
1593
>>> string_to_delta('1w')
1594
1594
datetime.timedelta(7)
1595
>>> string_to_delta(u'5m 30s')
1595
>>> string_to_delta('5m 30s')
1596
1596
datetime.timedelta(0, 330)
1598
1598
timevalue = datetime.timedelta(0)
1601
1601
suffix = unicode(s[-1])
1602
1602
value = int(s[:-1])
1604
1604
delta = datetime.timedelta(value)
1605
elif suffix == u"s":
1606
1606
delta = datetime.timedelta(0, value)
1607
elif suffix == u"m":
1608
1608
delta = datetime.timedelta(0, 0, 0, 0, value)
1609
elif suffix == u"h":
1610
1610
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1611
elif suffix == u"w":
1612
1612
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1614
raise ValueError(u"Unknown suffix %r" % suffix)
1614
raise ValueError("Unknown suffix %r" % suffix)
1615
1615
except (ValueError, IndexError), e:
1616
1616
raise ValueError(e.message)
1617
1617
timevalue += delta
1625
1625
global if_nametoindex
1627
1627
if_nametoindex = (ctypes.cdll.LoadLibrary
1628
(ctypes.util.find_library(u"c"))
1628
(ctypes.util.find_library("c"))
1629
1629
.if_nametoindex)
1630
1630
except (OSError, AttributeError):
1631
logger.warning(u"Doing if_nametoindex the hard way")
1631
logger.warning("Doing if_nametoindex the hard way")
1632
1632
def if_nametoindex(interface):
1633
1633
"Get an interface index the hard way, i.e. using fcntl()"
1634
1634
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1635
1635
with contextlib.closing(socket.socket()) as s:
1636
1636
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1637
struct.pack(str(u"16s16x"),
1637
struct.pack(str("16s16x"),
1639
interface_index = struct.unpack(str(u"I"),
1639
interface_index = struct.unpack(str("I"),
1640
1640
ifreq[16:20])[0]
1641
1641
return interface_index
1642
1642
return if_nametoindex(interface)
1672
1672
##################################################################
1673
1673
# Parsing of options, both command line and config file
1675
parser = optparse.OptionParser(version = u"%%prog %s" % version)
1676
parser.add_option(u"-i", u"--interface", type=u"string",
1677
metavar=u"IF", help=u"Bind to interface IF")
1678
parser.add_option(u"-a", u"--address", type=u"string",
1679
help=u"Address to listen for requests on")
1680
parser.add_option(u"-p", u"--port", type=u"int",
1681
help=u"Port number to receive requests on")
1682
parser.add_option(u"--check", action=u"store_true",
1683
help=u"Run self-test")
1684
parser.add_option(u"--debug", action=u"store_true",
1685
help=u"Debug mode; run in foreground and log to"
1687
parser.add_option(u"--debuglevel", type=u"string", metavar="LEVEL",
1688
help=u"Debug level for stdout output")
1689
parser.add_option(u"--priority", type=u"string", help=u"GnuTLS"
1690
u" priority string (see GnuTLS documentation)")
1691
parser.add_option(u"--servicename", type=u"string",
1692
metavar=u"NAME", help=u"Zeroconf service name")
1693
parser.add_option(u"--configdir", type=u"string",
1694
default=u"/etc/mandos", metavar=u"DIR",
1695
help=u"Directory to search for configuration"
1697
parser.add_option(u"--no-dbus", action=u"store_false",
1698
dest=u"use_dbus", help=u"Do not provide D-Bus"
1699
u" system bus interface")
1700
parser.add_option(u"--no-ipv6", action=u"store_false",
1701
dest=u"use_ipv6", help=u"Do not use IPv6")
1675
parser = optparse.OptionParser(version = "%%prog %s" % version)
1676
parser.add_option("-i", "--interface", type="string",
1677
metavar="IF", help="Bind to interface IF")
1678
parser.add_option("-a", "--address", type="string",
1679
help="Address to listen for requests on")
1680
parser.add_option("-p", "--port", type="int",
1681
help="Port number to receive requests on")
1682
parser.add_option("--check", action="store_true",
1683
help="Run self-test")
1684
parser.add_option("--debug", action="store_true",
1685
help="Debug mode; run in foreground and log to"
1687
parser.add_option("--debuglevel", type="string", metavar="LEVEL",
1688
help="Debug level for stdout output")
1689
parser.add_option("--priority", type="string", help="GnuTLS"
1690
" priority string (see GnuTLS documentation)")
1691
parser.add_option("--servicename", type="string",
1692
metavar="NAME", help="Zeroconf service name")
1693
parser.add_option("--configdir", type="string",
1694
default="/etc/mandos", metavar="DIR",
1695
help="Directory to search for configuration"
1697
parser.add_option("--no-dbus", action="store_false",
1698
dest="use_dbus", help="Do not provide D-Bus"
1699
" system bus interface")
1700
parser.add_option("--no-ipv6", action="store_false",
1701
dest="use_ipv6", help="Do not use IPv6")
1702
1702
options = parser.parse_args()[0]
1704
1704
if options.check:
1709
1709
# Default values for config file for server-global settings
1710
server_defaults = { u"interface": u"",
1715
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1716
u"servicename": u"Mandos",
1717
u"use_dbus": u"True",
1718
u"use_ipv6": u"True",
1710
server_defaults = { "interface": "",
1715
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1716
"servicename": "Mandos",
1722
1722
# Parse config file for server-global settings
1723
1723
server_config = configparser.SafeConfigParser(server_defaults)
1724
1724
del server_defaults
1725
1725
server_config.read(os.path.join(options.configdir,
1727
1727
# Convert the SafeConfigParser object to a dict
1728
1728
server_settings = server_config.defaults()
1729
1729
# Use the appropriate methods on the non-string config options
1730
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1731
server_settings[option] = server_config.getboolean(u"DEFAULT",
1730
for option in ("debug", "use_dbus", "use_ipv6"):
1731
server_settings[option] = server_config.getboolean("DEFAULT",
1733
if server_settings[u"port"]:
1734
server_settings[u"port"] = server_config.getint(u"DEFAULT",
1733
if server_settings["port"]:
1734
server_settings["port"] = server_config.getint("DEFAULT",
1736
1736
del server_config
1738
1738
# Override the settings from the config file with command line
1739
1739
# options, if set.
1740
for option in (u"interface", u"address", u"port", u"debug",
1741
u"priority", u"servicename", u"configdir",
1742
u"use_dbus", u"use_ipv6", u"debuglevel"):
1740
for option in ("interface", "address", "port", "debug",
1741
"priority", "servicename", "configdir",
1742
"use_dbus", "use_ipv6", "debuglevel"):
1743
1743
value = getattr(options, option)
1744
1744
if value is not None:
1745
1745
server_settings[option] = value
1753
1753
##################################################################
1755
1755
# For convenience
1756
debug = server_settings[u"debug"]
1757
debuglevel = server_settings[u"debuglevel"]
1758
use_dbus = server_settings[u"use_dbus"]
1759
use_ipv6 = server_settings[u"use_ipv6"]
1756
debug = server_settings["debug"]
1757
debuglevel = server_settings["debuglevel"]
1758
use_dbus = server_settings["use_dbus"]
1759
use_ipv6 = server_settings["use_ipv6"]
1761
if server_settings[u"servicename"] != u"Mandos":
1761
if server_settings["servicename"] != "Mandos":
1762
1762
syslogger.setFormatter(logging.Formatter
1763
(u'Mandos (%s) [%%(process)d]:'
1764
u' %%(levelname)s: %%(message)s'
1765
% server_settings[u"servicename"]))
1763
('Mandos (%s) [%%(process)d]:'
1764
' %%(levelname)s: %%(message)s'
1765
% server_settings["servicename"]))
1767
1767
# Parse config file with clients
1768
client_defaults = { u"timeout": u"1h",
1770
u"checker": u"fping -q -- %%(host)s",
1772
u"approval_delay": u"0s",
1773
u"approval_duration": u"1s",
1768
client_defaults = { "timeout": "1h",
1770
"checker": "fping -q -- %%(host)s",
1772
"approval_delay": "0s",
1773
"approval_duration": "1s",
1775
1775
client_config = configparser.SafeConfigParser(client_defaults)
1776
client_config.read(os.path.join(server_settings[u"configdir"],
1776
client_config.read(os.path.join(server_settings["configdir"],
1779
1779
global mandos_dbus_service
1780
1780
mandos_dbus_service = None
1782
tcp_server = MandosServer((server_settings[u"address"],
1783
server_settings[u"port"]),
1782
tcp_server = MandosServer((server_settings["address"],
1783
server_settings["port"]),
1785
interface=(server_settings[u"interface"]
1785
interface=(server_settings["interface"]
1787
1787
use_ipv6=use_ipv6,
1788
1788
gnutls_priority=
1789
server_settings[u"priority"],
1789
server_settings["priority"],
1790
1790
use_dbus=use_dbus)
1792
pidfilename = u"/var/run/mandos.pid"
1792
pidfilename = "/var/run/mandos.pid"
1794
pidfile = open(pidfilename, u"w")
1794
pidfile = open(pidfilename, "w")
1795
1795
except IOError:
1796
logger.error(u"Could not open file %r", pidfilename)
1796
logger.error("Could not open file %r", pidfilename)
1799
uid = pwd.getpwnam(u"_mandos").pw_uid
1800
gid = pwd.getpwnam(u"_mandos").pw_gid
1799
uid = pwd.getpwnam("_mandos").pw_uid
1800
gid = pwd.getpwnam("_mandos").pw_gid
1801
1801
except KeyError:
1803
uid = pwd.getpwnam(u"mandos").pw_uid
1804
gid = pwd.getpwnam(u"mandos").pw_gid
1803
uid = pwd.getpwnam("mandos").pw_uid
1804
gid = pwd.getpwnam("mandos").pw_gid
1805
1805
except KeyError:
1807
uid = pwd.getpwnam(u"nobody").pw_uid
1808
gid = pwd.getpwnam(u"nobody").pw_gid
1807
uid = pwd.getpwnam("nobody").pw_uid
1808
gid = pwd.getpwnam("nobody").pw_gid
1809
1809
except KeyError:
1860
1860
# End of Avahi example code
1863
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
1863
bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",
1864
1864
bus, do_not_queue=True)
1865
1865
except dbus.exceptions.NameExistsException, e:
1866
logger.error(unicode(e) + u", disabling D-Bus")
1866
logger.error(unicode(e) + ", disabling D-Bus")
1867
1867
use_dbus = False
1868
server_settings[u"use_dbus"] = False
1868
server_settings["use_dbus"] = False
1869
1869
tcp_server.use_dbus = False
1870
1870
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
1871
service = AvahiService(name = server_settings[u"servicename"],
1872
servicetype = u"_mandos._tcp",
1871
service = AvahiService(name = server_settings["servicename"],
1872
servicetype = "_mandos._tcp",
1873
1873
protocol = protocol, bus = bus)
1874
if server_settings[u"interface"]:
1874
if server_settings["interface"]:
1875
1875
service.interface = (if_nametoindex
1876
(str(server_settings[u"interface"])))
1876
(str(server_settings["interface"])))
1878
1878
global multiprocessing_manager
1879
1879
multiprocessing_manager = multiprocessing.Manager()
1924
1924
class MandosDBusService(dbus.service.Object):
1925
1925
"""A D-Bus proxy object"""
1926
1926
def __init__(self):
1927
dbus.service.Object.__init__(self, bus, u"/")
1928
_interface = u"se.bsnet.fukt.Mandos"
1927
dbus.service.Object.__init__(self, bus, "/")
1928
_interface = "se.bsnet.fukt.Mandos"
1930
@dbus.service.signal(_interface, signature=u"o")
1930
@dbus.service.signal(_interface, signature="o")
1931
1931
def ClientAdded(self, objpath):
1935
@dbus.service.signal(_interface, signature=u"ss")
1935
@dbus.service.signal(_interface, signature="ss")
1936
1936
def ClientNotFound(self, fingerprint, address):
1940
@dbus.service.signal(_interface, signature=u"os")
1940
@dbus.service.signal(_interface, signature="os")
1941
1941
def ClientRemoved(self, objpath, name):
1945
@dbus.service.method(_interface, out_signature=u"ao")
1945
@dbus.service.method(_interface, out_signature="ao")
1946
1946
def GetAllClients(self):
1948
1948
return dbus.Array(c.dbus_object_path
1949
1949
for c in tcp_server.clients)
1951
1951
@dbus.service.method(_interface,
1952
out_signature=u"a{oa{sv}}")
1952
out_signature="a{oa{sv}}")
1953
1953
def GetAllClientsWithProperties(self):
1955
1955
return dbus.Dictionary(
1956
((c.dbus_object_path, c.GetAll(u""))
1956
((c.dbus_object_path, c.GetAll(""))
1957
1957
for c in tcp_server.clients),
1958
signature=u"oa{sv}")
1960
@dbus.service.method(_interface, in_signature=u"o")
1960
@dbus.service.method(_interface, in_signature="o")
1961
1961
def RemoveClient(self, object_path):
1963
1963
for c in tcp_server.clients:
2005
2005
# Find out what port we got
2006
2006
service.port = tcp_server.socket.getsockname()[1]
2008
logger.info(u"Now listening on address %r, port %d,"
2009
u" flowinfo %d, scope_id %d"
2008
logger.info("Now listening on address %r, port %d,"
2009
" flowinfo %d, scope_id %d"
2010
2010
% tcp_server.socket.getsockname())
2012
logger.info(u"Now listening on address %r, port %d"
2012
logger.info("Now listening on address %r, port %d"
2013
2013
% tcp_server.socket.getsockname())
2015
2015
#service.interface = tcp_server.socket.getsockname()[3]
2029
2029
(tcp_server.handle_request
2030
2030
(*args[2:], **kwargs) or True))
2032
logger.debug(u"Starting main loop")
2032
logger.debug("Starting main loop")
2033
2033
main_loop.run()
2034
2034
except AvahiError, error:
2035
logger.critical(u"AvahiError: %s", error)
2035
logger.critical("AvahiError: %s", error)
2038
2038
except KeyboardInterrupt:
2040
2040
print >> sys.stderr
2041
logger.debug(u"Server received KeyboardInterrupt")
2042
logger.debug(u"Server exiting")
2041
logger.debug("Server received KeyboardInterrupt")
2042
logger.debug("Server exiting")
2043
2043
# Must run before the D-Bus bus name gets deregistered
2046
if __name__ == u'__main__':
2046
if __name__ == '__main__':