174
175
return b"mandos" + binascii.hexlify(password)
176
177
def encrypt(self, data, password):
177
self.gnupg.passphrase = self.password_encode(password)
178
with open(os.devnull) as devnull:
180
proc = self.gnupg.run(['--symmetric'],
181
create_fhs=['stdin', 'stdout'],
182
attach_fhs={'stderr': devnull})
183
with contextlib.closing(proc.handles['stdin']) as f:
185
with contextlib.closing(proc.handles['stdout']) as f:
186
ciphertext = f.read()
190
self.gnupg.passphrase = None
178
passphrase = self.password_encode(password)
179
with tempfile.NamedTemporaryFile(dir=self.tempdir
181
passfile.write(passphrase)
183
proc = subprocess.Popen(['gpg', '--symmetric',
187
stdin = subprocess.PIPE,
188
stdout = subprocess.PIPE,
189
stderr = subprocess.PIPE)
190
ciphertext, err = proc.communicate(input = data)
191
if proc.returncode != 0:
191
193
return ciphertext
193
195
def decrypt(self, data, password):
194
self.gnupg.passphrase = self.password_encode(password)
195
with open(os.devnull) as devnull:
197
proc = self.gnupg.run(['--decrypt'],
198
create_fhs=['stdin', 'stdout'],
199
attach_fhs={'stderr': devnull})
200
with contextlib.closing(proc.handles['stdin'] ) as f:
202
with contextlib.closing(proc.handles['stdout']) as f:
203
decrypted_plaintext = f.read()
207
self.gnupg.passphrase = None
196
passphrase = self.password_encode(password)
197
with tempfile.NamedTemporaryFile(dir = self.tempdir
199
passfile.write(passphrase)
201
proc = subprocess.Popen(['gpg', '--decrypt',
205
stdin = subprocess.PIPE,
206
stdout = subprocess.PIPE,
207
stderr = subprocess.PIPE)
208
decrypted_plaintext, err = proc.communicate(input
210
if proc.returncode != 0:
208
212
return decrypted_plaintext
212
215
class AvahiError(Exception):
213
216
def __init__(self, value, *args, **kwargs):
214
217
self.value = value
369
380
self.server_state_changed)
370
381
self.server_state_changed(self.server.GetState())
372
384
class AvahiServiceToSyslog(AvahiService):
373
385
def rename(self):
374
386
"""Add the new name to the syslog messages"""
375
387
ret = AvahiService.rename(self)
376
388
syslogger.setFormatter(logging.Formatter
377
('Mandos (%s) [%%(process)d]:'
378
' %%(levelname)s: %%(message)s'
389
('Mandos ({0}) [%(process)d]:'
390
' %(levelname)s: %(message)s'
382
395
def timedelta_to_milliseconds(td):
383
396
"Convert a datetime.timedelta() to milliseconds"
384
397
return ((td.days * 24 * 60 * 60 * 1000)
385
398
+ (td.seconds * 1000)
386
399
+ (td.microseconds // 1000))
388
402
class Client(object):
389
403
"""A representation of a client host served by this server.
426
440
runtime_expansions: Allowed attributes for runtime expansion.
427
441
expires: datetime.datetime(); time (UTC) when a client will be
428
442
disabled, or None
443
server_settings: The server_settings dict from main()
431
446
runtime_expansions = ("approval_delay", "approval_duration",
432
"created", "enabled", "fingerprint",
433
"host", "interval", "last_checked_ok",
447
"created", "enabled", "expires",
448
"fingerprint", "host", "interval",
449
"last_approval_request", "last_checked_ok",
434
450
"last_enabled", "name", "timeout")
435
client_defaults = { "timeout": "5m",
436
"extended_timeout": "15m",
451
client_defaults = { "timeout": "PT5M",
452
"extended_timeout": "PT15M",
438
454
"checker": "fping -q -- %%(host)s",
440
"approval_delay": "0s",
441
"approval_duration": "1s",
456
"approval_delay": "PT0S",
457
"approval_duration": "PT1S",
442
458
"approved_by_default": "True",
443
459
"enabled": "True",
566
581
if getattr(self, "enabled", False):
567
582
# Already enabled
569
self.send_changedstate()
570
584
self.expires = datetime.datetime.utcnow() + self.timeout
571
585
self.enabled = True
572
586
self.last_enabled = datetime.datetime.utcnow()
573
587
self.init_checker()
588
self.send_changedstate()
575
590
def disable(self, quiet=True):
576
591
"""Disable this client."""
577
592
if not getattr(self, "enabled", False):
580
self.send_changedstate()
582
595
logger.info("Disabling client %s", self.name)
583
if getattr(self, "disable_initiator_tag", False):
596
if getattr(self, "disable_initiator_tag", None) is not None:
584
597
gobject.source_remove(self.disable_initiator_tag)
585
598
self.disable_initiator_tag = None
586
599
self.expires = None
587
if getattr(self, "checker_initiator_tag", False):
600
if getattr(self, "checker_initiator_tag", None) is not None:
588
601
gobject.source_remove(self.checker_initiator_tag)
589
602
self.checker_initiator_tag = None
590
603
self.stop_checker()
591
604
self.enabled = False
606
self.send_changedstate()
592
607
# Do not run this again if called by a gobject.timeout_add
653
673
If a checker already exists, leave it running and do
655
675
# The reason for not killing a running checker is that if we
656
# did that, then if a checker (for some reason) started
657
# running slowly and taking more than 'interval' time, the
658
# client would inevitably timeout, since no checker would get
659
# a chance to run to completion. If we instead leave running
676
# did that, and if a checker (for some reason) started running
677
# slowly and taking more than 'interval' time, then the client
678
# would inevitably timeout, since no checker would get a
679
# chance to run to completion. If we instead leave running
660
680
# checkers alone, the checker would have to take more time
661
681
# than 'timeout' for the client to be disabled, which is as it
676
696
self.current_checker_command)
677
697
# Start a new checker if needed
678
698
if self.checker is None:
699
# Escape attributes for the shell
700
escaped_attrs = dict(
701
(attr, re.escape(unicode(getattr(self, attr))))
703
self.runtime_expansions)
680
# In case checker_command has exactly one % operator
681
command = self.checker_command % self.host
683
# Escape attributes for the shell
684
escaped_attrs = dict(
686
re.escape(unicode(str(getattr(self, attr, "")),
690
self.runtime_expansions)
693
command = self.checker_command % escaped_attrs
694
except TypeError as error:
695
logger.error('Could not format string "%s":'
696
' %s', self.checker_command, error)
697
return True # Try again later
705
command = self.checker_command % escaped_attrs
706
except TypeError as error:
707
logger.error('Could not format string "%s"',
708
self.checker_command, exc_info=error)
709
return True # Try again later
698
710
self.current_checker_command = command
700
712
logger.info("Starting checker %r for %s",
703
715
# in normal mode, that is already done by daemon(),
704
716
# and in debug mode we don't want to. (Stdin is
705
717
# always replaced by /dev/null.)
718
# The exception is when not debugging but nevertheless
719
# running in the foreground; use the previously
722
if (not self.server_settings["debug"]
723
and self.server_settings["foreground"]):
724
popen_args.update({"stdout": wnull,
706
726
self.checker = subprocess.Popen(command,
709
self.checker_callback_tag = (gobject.child_watch_add
711
self.checker_callback,
713
# The checker may have completed before the gobject
714
# watch was added. Check for this.
730
except OSError as error:
731
logger.error("Failed to start subprocess",
734
self.checker_callback_tag = (gobject.child_watch_add
736
self.checker_callback,
738
# The checker may have completed before the gobject
739
# watch was added. Check for this.
715
741
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
717
gobject.source_remove(self.checker_callback_tag)
718
self.checker_callback(pid, status, command)
719
742
except OSError as error:
720
logger.error("Failed to start subprocess: %s",
743
if error.errno == errno.ECHILD:
744
# This should never happen
745
logger.error("Child process vanished",
750
gobject.source_remove(self.checker_callback_tag)
751
self.checker_callback(pid, status, command)
722
752
# Re-run this periodically if run by gobject.timeout_add
804
def dbus_interface_annotations(dbus_interface):
805
"""Decorator for marking functions returning interface annotations
809
@dbus_interface_annotations("org.example.Interface")
810
def _foo(self): # Function name does not matter
811
return {"org.freedesktop.DBus.Deprecated": "true",
812
"org.freedesktop.DBus.Property.EmitsChangedSignal":
816
func._dbus_is_interface = True
817
func._dbus_interface = dbus_interface
818
func._dbus_name = dbus_interface
823
def dbus_annotations(annotations):
824
"""Decorator to annotate D-Bus methods, signals or properties
827
@dbus_service_property("org.example.Interface", signature="b",
829
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
830
"org.freedesktop.DBus.Property."
831
"EmitsChangedSignal": "false"})
832
def Property_dbus_property(self):
833
return dbus.Boolean(False)
836
func._dbus_annotations = annotations
774
841
class DBusPropertyException(dbus.exceptions.DBusException):
775
842
"""A base class for D-Bus property-related exceptions
802
def _is_dbus_property(obj):
803
return getattr(obj, "_dbus_is_property", False)
869
def _is_dbus_thing(thing):
870
"""Returns a function testing if an attribute is a D-Bus thing
872
If called like _is_dbus_thing("method") it returns a function
873
suitable for use as predicate to inspect.getmembers().
875
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
805
def _get_all_dbus_properties(self):
878
def _get_all_dbus_things(self, thing):
806
879
"""Returns a generator of (name, attribute) pairs
808
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
881
return ((getattr(athing.__get__(self), "_dbus_name",
883
athing.__get__(self))
809
884
for cls in self.__class__.__mro__
811
inspect.getmembers(cls, self._is_dbus_property))
886
inspect.getmembers(cls,
887
self._is_dbus_thing(thing)))
813
889
def _get_dbus_property(self, interface_name, property_name):
814
890
"""Returns a bound method if one exists which is a D-Bus
898
977
e.setAttribute("access", prop._dbus_access)
900
979
for if_tag in document.getElementsByTagName("interface"):
901
981
for tag in (make_tag(document, name, prop)
903
in self._get_all_dbus_properties()
983
in self._get_all_dbus_things("property")
904
984
if prop._dbus_interface
905
985
== if_tag.getAttribute("name")):
906
986
if_tag.appendChild(tag)
987
# Add annotation tags
988
for typ in ("method", "signal", "property"):
989
for tag in if_tag.getElementsByTagName(typ):
991
for name, prop in (self.
992
_get_all_dbus_things(typ)):
993
if (name == tag.getAttribute("name")
994
and prop._dbus_interface
995
== if_tag.getAttribute("name")):
996
annots.update(getattr
1000
for name, value in annots.iteritems():
1001
ann_tag = document.createElement(
1003
ann_tag.setAttribute("name", name)
1004
ann_tag.setAttribute("value", value)
1005
tag.appendChild(ann_tag)
1006
# Add interface annotation tags
1007
for annotation, value in dict(
1008
itertools.chain.from_iterable(
1009
annotations().iteritems()
1010
for name, annotations in
1011
self._get_all_dbus_things("interface")
1012
if name == if_tag.getAttribute("name")
1014
ann_tag = document.createElement("annotation")
1015
ann_tag.setAttribute("name", annotation)
1016
ann_tag.setAttribute("value", value)
1017
if_tag.appendChild(ann_tag)
907
1018
# Add the names to the return values for the
908
1019
# "org.freedesktop.DBus.Properties" methods
909
1020
if (if_tag.getAttribute("name")
936
1047
variant_level=variant_level)
939
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
941
"""Applied to an empty subclass of a D-Bus object, this metaclass
942
will add additional D-Bus attributes matching a certain pattern.
1050
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1051
"""A class decorator; applied to a subclass of
1052
dbus.service.Object, it will add alternate D-Bus attributes with
1053
interface names according to the "alt_interface_names" mapping.
1056
@alternate_dbus_interfaces({"org.example.Interface":
1057
"net.example.AlternateInterface"})
1058
class SampleDBusObject(dbus.service.Object):
1059
@dbus.service.method("org.example.Interface")
1060
def SampleDBusMethod():
1063
The above "SampleDBusMethod" on "SampleDBusObject" will be
1064
reachable via two interfaces: "org.example.Interface" and
1065
"net.example.AlternateInterface", the latter of which will have
1066
its D-Bus annotation "org.freedesktop.DBus.Deprecated" set to
1067
"true", unless "deprecate" is passed with a False value.
1069
This works for methods and signals, and also for D-Bus properties
1070
(from DBusObjectWithProperties) and interfaces (from the
1071
dbus_interface_annotations decorator).
944
def __new__(mcs, name, bases, attr):
945
# Go through all the base classes which could have D-Bus
946
# methods, signals, or properties in them
947
for base in (b for b in bases
948
if issubclass(b, dbus.service.Object)):
949
# Go though all attributes of the base class
950
for attrname, attribute in inspect.getmembers(base):
1074
for orig_interface_name, alt_interface_name in (
1075
alt_interface_names.iteritems()):
1077
interface_names = set()
1078
# Go though all attributes of the class
1079
for attrname, attribute in inspect.getmembers(cls):
951
1080
# Ignore non-D-Bus attributes, and D-Bus attributes
952
1081
# with the wrong interface name
953
1082
if (not hasattr(attribute, "_dbus_interface")
954
1083
or not attribute._dbus_interface
955
.startswith("se.recompile.Mandos")):
1084
.startswith(orig_interface_name)):
957
1086
# Create an alternate D-Bus interface name based on
958
1087
# the current name
959
1088
alt_interface = (attribute._dbus_interface
960
.replace("se.recompile.Mandos",
961
"se.bsnet.fukt.Mandos"))
1089
.replace(orig_interface_name,
1090
alt_interface_name))
1091
interface_names.add(alt_interface)
962
1092
# Is this a D-Bus signal?
963
1093
if getattr(attribute, "_dbus_is_signal", False):
964
# Extract the original non-method function by
1094
# Extract the original non-method undecorated
1095
# function by black magic
966
1096
nonmethod_func = (dict(
967
1097
zip(attribute.func_code.co_freevars,
968
1098
attribute.__closure__))["func"]
979
1109
nonmethod_func.func_name,
980
1110
nonmethod_func.func_defaults,
981
1111
nonmethod_func.func_closure)))
1112
# Copy annotations, if any
1114
new_function._dbus_annotations = (
1115
dict(attribute._dbus_annotations))
1116
except AttributeError:
982
1118
# Define a creator of a function to call both the
983
# old and new functions, so both the old and new
984
# signals gets sent when the function is called
1119
# original and alternate functions, so both the
1120
# original and alternate signals gets sent when
1121
# the function is called
985
1122
def fixscope(func1, func2):
986
1123
"""This function is a scope container to pass
987
1124
func1 and func2 to the "call_both" function
1031
1173
attribute.func_name,
1032
1174
attribute.func_defaults,
1033
1175
attribute.func_closure)))
1034
return type.__new__(mcs, name, bases, attr)
1176
# Copy annotations, if any
1178
attr[attrname]._dbus_annotations = (
1179
dict(attribute._dbus_annotations))
1180
except AttributeError:
1182
# Is this a D-Bus interface?
1183
elif getattr(attribute, "_dbus_is_interface", False):
1184
# Create a new, but exactly alike, function
1185
# object. Decorate it to be a new D-Bus interface
1186
# with the alternate D-Bus interface name. Add it
1188
attr[attrname] = (dbus_interface_annotations
1191
(attribute.func_code,
1192
attribute.func_globals,
1193
attribute.func_name,
1194
attribute.func_defaults,
1195
attribute.func_closure)))
1197
# Deprecate all alternate interfaces
1198
iname="_AlternateDBusNames_interface_annotation{0}"
1199
for interface_name in interface_names:
1200
@dbus_interface_annotations(interface_name)
1202
return { "org.freedesktop.DBus.Deprecated":
1204
# Find an unused name
1205
for aname in (iname.format(i)
1206
for i in itertools.count()):
1207
if aname not in attr:
1211
# Replace the class with a new subclass of it with
1212
# methods, signals, etc. as created above.
1213
cls = type(b"{0}Alternate".format(cls.__name__),
1219
@alternate_dbus_interfaces({"se.recompile.Mandos":
1220
"se.bsnet.fukt.Mandos"})
1037
1221
class ClientDBus(Client, DBusObjectWithProperties):
1038
1222
"""A Client class using D-Bus
1364
1553
def Timeout_dbus_property(self, value=None):
1365
1554
if value is None: # get
1366
1555
return dbus.UInt64(self.timeout_milliseconds())
1556
old_timeout = self.timeout
1367
1557
self.timeout = datetime.timedelta(0, 0, 0, value)
1368
# Reschedule timeout
1558
# Reschedule disabling
1369
1559
if self.enabled:
1370
1560
now = datetime.datetime.utcnow()
1371
time_to_die = timedelta_to_milliseconds(
1372
(self.last_checked_ok + self.timeout) - now)
1373
if time_to_die <= 0:
1561
self.expires += self.timeout - old_timeout
1562
if self.expires <= now:
1374
1563
# The timeout has passed
1377
self.expires = (now +
1378
datetime.timedelta(milliseconds =
1380
1566
if (getattr(self, "disable_initiator_tag", None)
1383
1569
gobject.source_remove(self.disable_initiator_tag)
1384
self.disable_initiator_tag = (gobject.timeout_add
1570
self.disable_initiator_tag = (
1571
gobject.timeout_add(
1572
timedelta_to_milliseconds(self.expires - now),
1388
1575
# ExtendedTimeout - property
1389
1576
@dbus_service_property(_interface, signature="t",
1738
1922
use_ipv6: Boolean; to use IPv6 or not
1740
1924
def __init__(self, server_address, RequestHandlerClass,
1741
interface=None, use_ipv6=True):
1925
interface=None, use_ipv6=True, socketfd=None):
1926
"""If socketfd is set, use that file descriptor instead of
1927
creating a new one with socket.socket().
1742
1929
self.interface = interface
1744
1931
self.address_family = socket.AF_INET6
1932
if socketfd is not None:
1933
# Save the file descriptor
1934
self.socketfd = socketfd
1935
# Save the original socket.socket() function
1936
self.socket_socket = socket.socket
1937
# To implement --socket, we monkey patch socket.socket.
1939
# (When socketserver.TCPServer is a new-style class, we
1940
# could make self.socket into a property instead of monkey
1941
# patching socket.socket.)
1943
# Create a one-time-only replacement for socket.socket()
1944
@functools.wraps(socket.socket)
1945
def socket_wrapper(*args, **kwargs):
1946
# Restore original function so subsequent calls are
1948
socket.socket = self.socket_socket
1949
del self.socket_socket
1950
# This time only, return a new socket object from the
1951
# saved file descriptor.
1952
return socket.fromfd(self.socketfd, *args, **kwargs)
1953
# Replace socket.socket() function with wrapper
1954
socket.socket = socket_wrapper
1955
# The socketserver.TCPServer.__init__ will call
1956
# socket.socket(), which might be our replacement,
1957
# socket_wrapper(), if socketfd was set.
1745
1958
socketserver.TCPServer.__init__(self, server_address,
1746
1959
RequestHandlerClass)
1747
1961
def server_bind(self):
1748
1962
"""This overrides the normal server_bind() function
1749
1963
to bind to an interface if one was specified, and also NOT to
1758
1972
self.socket.setsockopt(socket.SOL_SOCKET,
1759
1973
SO_BINDTODEVICE,
1974
str(self.interface + '\0'))
1762
1975
except socket.error as error:
1763
if error[0] == errno.EPERM:
1764
logger.error("No permission to"
1765
" bind to interface %s",
1767
elif error[0] == errno.ENOPROTOOPT:
1976
if error.errno == errno.EPERM:
1977
logger.error("No permission to bind to"
1978
" interface %s", self.interface)
1979
elif error.errno == errno.ENOPROTOOPT:
1768
1980
logger.error("SO_BINDTODEVICE not available;"
1769
1981
" cannot bind to interface %s",
1770
1982
self.interface)
1983
elif error.errno == errno.ENODEV:
1984
logger.error("Interface %s does not exist,"
1985
" cannot bind", self.interface)
1773
1988
# Only bind(2) the socket if we really need to.
1833
2049
def handle_ipc(self, source, condition, parent_pipe=None,
1834
2050
proc = None, client_object=None):
1836
gobject.IO_IN: "IN", # There is data to read.
1837
gobject.IO_OUT: "OUT", # Data can be written (without
1839
gobject.IO_PRI: "PRI", # There is urgent data to read.
1840
gobject.IO_ERR: "ERR", # Error condition.
1841
gobject.IO_HUP: "HUP" # Hung up (the connection has been
1842
# broken, usually for pipes and
1845
conditions_string = ' | '.join(name
1847
condition_names.iteritems()
1848
if cond & condition)
1849
2051
# error, or the other end of multiprocessing.Pipe has closed
1850
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
2052
if condition & (gobject.IO_ERR | gobject.IO_HUP):
1851
2053
# Wait for other process to exit
2116
def rfc3339_duration_to_delta(duration):
2117
"""Parse an RFC 3339 "duration" and return a datetime.timedelta
2119
>>> rfc3339_duration_to_delta("P7D")
2120
datetime.timedelta(7)
2121
>>> rfc3339_duration_to_delta("PT60S")
2122
datetime.timedelta(0, 60)
2123
>>> rfc3339_duration_to_delta("PT60M")
2124
datetime.timedelta(0, 3600)
2125
>>> rfc3339_duration_to_delta("PT24H")
2126
datetime.timedelta(1)
2127
>>> rfc3339_duration_to_delta("P1W")
2128
datetime.timedelta(7)
2129
>>> rfc3339_duration_to_delta("PT5M30S")
2130
datetime.timedelta(0, 330)
2131
>>> rfc3339_duration_to_delta("P1DT3M20S")
2132
datetime.timedelta(1, 200)
2135
# Parsing an RFC 3339 duration with regular expressions is not
2136
# possible - there would have to be multiple places for the same
2137
# values, like seconds. The current code, while more esoteric, is
2138
# cleaner without depending on a parsing library. If Python had a
2139
# built-in library for parsing we would use it, but we'd like to
2140
# avoid excessive use of external libraries.
2142
# New type for defining tokens, syntax, and semantics all-in-one
2143
Token = collections.namedtuple("Token",
2144
("regexp", # To match token; if
2145
# "value" is not None,
2146
# must have a "group"
2148
"value", # datetime.timedelta or
2150
"followers")) # Tokens valid after
2152
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2153
# the "duration" ABNF definition in RFC 3339, Appendix A.
2154
token_end = Token(re.compile(r"$"), None, frozenset())
2155
token_second = Token(re.compile(r"(\d+)S"),
2156
datetime.timedelta(seconds=1),
2157
frozenset((token_end,)))
2158
token_minute = Token(re.compile(r"(\d+)M"),
2159
datetime.timedelta(minutes=1),
2160
frozenset((token_second, token_end)))
2161
token_hour = Token(re.compile(r"(\d+)H"),
2162
datetime.timedelta(hours=1),
2163
frozenset((token_minute, token_end)))
2164
token_time = Token(re.compile(r"T"),
2166
frozenset((token_hour, token_minute,
2168
token_day = Token(re.compile(r"(\d+)D"),
2169
datetime.timedelta(days=1),
2170
frozenset((token_time, token_end)))
2171
token_month = Token(re.compile(r"(\d+)M"),
2172
datetime.timedelta(weeks=4),
2173
frozenset((token_day, token_end)))
2174
token_year = Token(re.compile(r"(\d+)Y"),
2175
datetime.timedelta(weeks=52),
2176
frozenset((token_month, token_end)))
2177
token_week = Token(re.compile(r"(\d+)W"),
2178
datetime.timedelta(weeks=1),
2179
frozenset((token_end,)))
2180
token_duration = Token(re.compile(r"P"), None,
2181
frozenset((token_year, token_month,
2182
token_day, token_time,
2184
# Define starting values
2185
value = datetime.timedelta() # Value so far
2187
followers = frozenset(token_duration,) # Following valid tokens
2188
s = duration # String left to parse
2189
# Loop until end token is found
2190
while found_token is not token_end:
2191
# Search for any currently valid tokens
2192
for token in followers:
2193
match = token.regexp.match(s)
2194
if match is not None:
2196
if token.value is not None:
2197
# Value found, parse digits
2198
factor = int(match.group(1), 10)
2199
# Add to value so far
2200
value += factor * token.value
2201
# Strip token from string
2202
s = token.regexp.sub("", s, 1)
2205
# Set valid next tokens
2206
followers = found_token.followers
2209
# No currently valid tokens were found
2210
raise ValueError("Invalid RFC 3339 duration")
1914
2215
def string_to_delta(interval):
1915
2216
"""Parse a string and return a datetime.timedelta
2008
2316
parser.add_argument("--no-dbus", action="store_false",
2009
2317
dest="use_dbus", help="Do not provide D-Bus"
2010
" system bus interface")
2318
" system bus interface", default=None)
2011
2319
parser.add_argument("--no-ipv6", action="store_false",
2012
dest="use_ipv6", help="Do not use IPv6")
2320
dest="use_ipv6", help="Do not use IPv6",
2013
2322
parser.add_argument("--no-restore", action="store_false",
2014
2323
dest="restore", help="Do not restore stored"
2324
" state", default=None)
2325
parser.add_argument("--socket", type=int,
2326
help="Specify a file descriptor to a network"
2327
" socket to use instead of creating one")
2016
2328
parser.add_argument("--statedir", metavar="DIR",
2017
2329
help="Directory to save/restore state in")
2330
parser.add_argument("--foreground", action="store_true",
2331
help="Run in foreground", default=None)
2019
2333
options = parser.parse_args()
2046
2362
# Convert the SafeConfigParser object to a dict
2047
2363
server_settings = server_config.defaults()
2048
2364
# Use the appropriate methods on the non-string config options
2049
for option in ("debug", "use_dbus", "use_ipv6"):
2365
for option in ("debug", "use_dbus", "use_ipv6", "foreground"):
2050
2366
server_settings[option] = server_config.getboolean("DEFAULT",
2052
2368
if server_settings["port"]:
2053
2369
server_settings["port"] = server_config.getint("DEFAULT",
2371
if server_settings["socket"]:
2372
server_settings["socket"] = server_config.getint("DEFAULT",
2374
# Later, stdin will, and stdout and stderr might, be dup'ed
2375
# over with an opened os.devnull. But we don't want this to
2376
# happen with a supplied network socket.
2377
if 0 <= server_settings["socket"] <= 2:
2378
server_settings["socket"] = os.dup(server_settings
2055
2380
del server_config
2057
2382
# Override the settings from the config file with command line
2112
2446
use_ipv6=use_ipv6,
2113
2447
gnutls_priority=
2114
2448
server_settings["priority"],
2117
pidfilename = "/var/run/mandos.pid"
2450
socketfd=(server_settings["socket"]
2453
pidfilename = "/run/mandos.pid"
2119
2456
pidfile = open(pidfilename, "w")
2121
logger.error("Could not open file %r", pidfilename)
2457
except IOError as e:
2458
logger.error("Could not open file %r", pidfilename,
2124
uid = pwd.getpwnam("_mandos").pw_uid
2125
gid = pwd.getpwnam("_mandos").pw_gid
2461
for name in ("_mandos", "mandos", "nobody"):
2128
uid = pwd.getpwnam("mandos").pw_uid
2129
gid = pwd.getpwnam("mandos").pw_gid
2463
uid = pwd.getpwnam(name).pw_uid
2464
gid = pwd.getpwnam(name).pw_gid
2130
2466
except KeyError:
2132
uid = pwd.getpwnam("nobody").pw_uid
2133
gid = pwd.getpwnam("nobody").pw_gid
2140
2474
except OSError as error:
2141
if error[0] != errno.EPERM:
2475
if error.errno != errno.EPERM:
2156
2490
.gnutls_global_set_log_function(debug_gnutls))
2158
2492
# Redirect stdin so all checkers get /dev/null
2159
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
2493
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2160
2494
os.dup2(null, sys.stdin.fileno())
2164
2498
# Need to fork before connecting to D-Bus
2166
2500
# Close all input and output, do double fork, etc.
2503
# multiprocessing will use threads, so before we use gobject we
2504
# need to inform gobject that threads will be used.
2169
2505
gobject.threads_init()
2171
2507
global main_loop
2172
2508
# From the Avahi example code
2173
DBusGMainLoop(set_as_default=True )
2509
DBusGMainLoop(set_as_default=True)
2174
2510
main_loop = gobject.MainLoop()
2175
2511
bus = dbus.SystemBus()
2176
2512
# End of Avahi example code
2215
2558
(stored_state))
2216
2559
os.remove(stored_state_path)
2217
2560
except IOError as e:
2218
logger.warning("Could not load persistent state: {0}"
2220
if e.errno != errno.ENOENT:
2561
if e.errno == errno.ENOENT:
2562
logger.warning("Could not load persistent state: {0}"
2563
.format(os.strerror(e.errno)))
2565
logger.critical("Could not load persistent state:",
2222
2568
except EOFError as e:
2223
2569
logger.warning("Could not load persistent state: "
2224
"EOFError: {0}".format(e))
2570
"EOFError:", exc_info=e)
2226
2572
with PGPEngine() as pgp:
2227
2573
for client_name, client in clients_data.iteritems():
2574
# Skip removed clients
2575
if client_name not in client_settings:
2228
2578
# Decide which value to use after restoring saved state.
2229
2579
# We have three different values: Old config file,
2230
2580
# new config file, and saved state.
2289
2638
for client_name in (set(client_settings)
2290
2639
- set(old_client_settings)):
2291
2640
clients_data[client_name] = client_settings[client_name]
2293
2642
# Create all client objects
2294
2643
for client_name, client in clients_data.iteritems():
2295
2644
tcp_server.clients[client_name] = client_class(
2296
name = client_name, settings = client)
2645
name = client_name, settings = client,
2646
server_settings = server_settings)
2298
2648
if not tcp_server.clients:
2299
2649
logger.warning("No clients defined")
2305
pidfile.write(str(pid) + "\n".encode("utf-8"))
2308
logger.error("Could not write to file %r with PID %d",
2311
# "pidfile" was never created
2652
if pidfile is not None:
2656
pidfile.write(str(pid) + "\n".encode("utf-8"))
2658
logger.error("Could not write to file %r with PID %d",
2313
2661
del pidfilename
2314
signal.signal(signal.SIGINT, signal.SIG_IGN)
2316
2663
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2317
2664
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2320
class MandosDBusService(dbus.service.Object):
2667
@alternate_dbus_interfaces({"se.recompile.Mandos":
2668
"se.bsnet.fukt.Mandos"})
2669
class MandosDBusService(DBusObjectWithProperties):
2321
2670
"""A D-Bus proxy object"""
2322
2671
def __init__(self):
2323
2672
dbus.service.Object.__init__(self, bus, "/")
2324
2673
_interface = "se.recompile.Mandos"
2675
@dbus_interface_annotations(_interface)
2677
return { "org.freedesktop.DBus.Property"
2678
".EmitsChangedSignal":
2326
2681
@dbus.service.signal(_interface, signature="o")
2327
2682
def ClientAdded(self, objpath):
2411
2765
del client_settings[client.name]["secret"]
2414
tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2417
(stored_state_path))
2418
with os.fdopen(tempfd, "wb") as stored_state:
2768
with (tempfile.NamedTemporaryFile
2769
(mode='wb', suffix=".pickle", prefix='clients-',
2770
dir=os.path.dirname(stored_state_path),
2771
delete=False)) as stored_state:
2419
2772
pickle.dump((clients, client_settings), stored_state)
2773
tempname=stored_state.name
2420
2774
os.rename(tempname, stored_state_path)
2421
2775
except (IOError, OSError) as e:
2422
logger.warning("Could not save persistent state: {0}"
2426
2778
os.remove(tempname)
2427
2779
except NameError:
2429
if e.errno not in set((errno.ENOENT, errno.EACCES,
2781
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2782
logger.warning("Could not save persistent state: {0}"
2783
.format(os.strerror(e.errno)))
2785
logger.warning("Could not save persistent state:",
2433
2789
# Delete all clients, and settings from config
2461
2817
service.port = tcp_server.socket.getsockname()[1]
2463
2819
logger.info("Now listening on address %r, port %d,"
2464
" flowinfo %d, scope_id %d"
2465
% tcp_server.socket.getsockname())
2820
" flowinfo %d, scope_id %d",
2821
*tcp_server.socket.getsockname())
2467
logger.info("Now listening on address %r, port %d"
2468
% tcp_server.socket.getsockname())
2823
logger.info("Now listening on address %r, port %d",
2824
*tcp_server.socket.getsockname())
2470
2826
#service.interface = tcp_server.socket.getsockname()[3]