11
11
# "AvahiService" class, and some lines in "main".
13
13
# Everything else is
14
# Copyright © 2008-2014 Teddy Hogeborn
15
# Copyright © 2008-2014 Björn Påhlsson
14
# Copyright © 2008-2012 Teddy Hogeborn
15
# Copyright © 2008-2012 Björn Påhlsson
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
88
88
except ImportError:
89
89
SO_BINDTODEVICE = None
92
92
stored_state_file = "clients.pickle"
94
94
logger = logging.getLogger()
95
syslogger = (logging.handlers.SysLogHandler
96
(facility = logging.handlers.SysLogHandler.LOG_DAEMON,
97
address = str("/dev/log")))
98
100
if_nametoindex = (ctypes.cdll.LoadLibrary
114
116
def initlogger(debug, level=logging.WARNING):
115
117
"""init logger and add loglevel"""
117
syslogger = (logging.handlers.SysLogHandler
119
logging.handlers.SysLogHandler.LOG_DAEMON,
120
address = str("/dev/log")))
121
119
syslogger.setFormatter(logging.Formatter
122
120
('Mandos [%(process)d]: %(levelname)s:'
174
172
def password_encode(self, password):
175
173
# Passphrase can not be empty and can not contain newlines or
176
174
# NUL bytes. So we prefix it and hex encode it.
177
encoded = b"mandos" + binascii.hexlify(password)
178
if len(encoded) > 2048:
179
# GnuPG can't handle long passwords, so encode differently
180
encoded = (b"mandos" + password.replace(b"\\", b"\\\\")
181
.replace(b"\n", b"\\n")
182
.replace(b"\0", b"\\x00"))
175
return b"mandos" + binascii.hexlify(password)
185
177
def encrypt(self, data, password):
186
178
passphrase = self.password_encode(password)
448
440
runtime_expansions: Allowed attributes for runtime expansion.
449
441
expires: datetime.datetime(); time (UTC) when a client will be
450
442
disabled, or None
451
server_settings: The server_settings dict from main()
454
445
runtime_expansions = ("approval_delay", "approval_duration",
532
def __init__(self, settings, name = None, server_settings=None):
523
def __init__(self, settings, name = None):
534
if server_settings is None:
536
self.server_settings = server_settings
537
525
# adding all client settings
538
526
for setting, value in settings.iteritems():
539
527
setattr(self, setting, value)
692
680
# If a checker exists, make sure it is not a zombie
694
682
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
695
except AttributeError:
697
except OSError as error:
698
if error.errno != errno.ECHILD:
683
except (AttributeError, OSError) as error:
684
if (isinstance(error, OSError)
685
and error.errno != errno.ECHILD):
702
689
logger.warning("Checker was a zombie")
724
711
# in normal mode, that is already done by daemon(),
725
712
# and in debug mode we don't want to. (Stdin is
726
713
# always replaced by /dev/null.)
727
# The exception is when not debugging but nevertheless
728
# running in the foreground; use the previously
731
if (not self.server_settings["debug"]
732
and self.server_settings["foreground"]):
733
popen_args.update({"stdout": wnull,
735
714
self.checker = subprocess.Popen(command,
739
717
except OSError as error:
740
718
logger.error("Failed to start subprocess",
936
914
# The byte_arrays option is not supported yet on
937
915
# signatures other than "ay".
938
916
if prop._dbus_signature != "ay":
939
raise ValueError("Byte arrays not supported for non-"
940
"'ay' signature {0!r}"
941
.format(prop._dbus_signature))
942
918
value = dbus.ByteArray(b''.join(chr(byte)
943
919
for byte in value))
1352
1328
*args, **kwargs)
1354
1330
def start_checker(self, *args, **kwargs):
1355
old_checker_pid = getattr(self.checker, "pid", None)
1331
old_checker = self.checker
1332
if self.checker is not None:
1333
old_checker_pid = self.checker.pid
1335
old_checker_pid = None
1356
1336
r = Client.start_checker(self, *args, **kwargs)
1357
1337
# Only if new checker process was started
1358
1338
if (self.checker is not None
1703
1683
logger.debug("Protocol version: %r", line)
1705
1685
if int(line.strip().split()[0]) > 1:
1706
raise RuntimeError(line)
1707
1687
except (ValueError, IndexError, RuntimeError) as error:
1708
1688
logger.error("Unknown protocol version: %s", error)
1917
1897
def add_pipe(self, parent_pipe, proc):
1918
1898
"""Dummy function; override as necessary"""
1919
raise NotImplementedError()
1899
raise NotImplementedError
1922
1902
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1998
1978
if self.address_family == socket.AF_INET6:
1999
1979
any_address = "::" # in6addr_any
2001
any_address = "0.0.0.0" # INADDR_ANY
1981
any_address = socket.INADDR_ANY
2002
1982
self.server_address = (any_address,
2003
1983
self.server_address[1])
2004
1984
elif not self.server_address[1]:
2309
2289
help="Run self-test")
2310
2290
parser.add_argument("--debug", action="store_true",
2311
2291
help="Debug mode; run in foreground and log"
2312
" to terminal", default=None)
2313
2293
parser.add_argument("--debuglevel", metavar="LEVEL",
2314
2294
help="Debug level for stdout output")
2315
2295
parser.add_argument("--priority", help="GnuTLS"
2323
2303
parser.add_argument("--no-dbus", action="store_false",
2324
2304
dest="use_dbus", help="Do not provide D-Bus"
2325
" system bus interface", default=None)
2305
" system bus interface")
2326
2306
parser.add_argument("--no-ipv6", action="store_false",
2327
dest="use_ipv6", help="Do not use IPv6",
2307
dest="use_ipv6", help="Do not use IPv6")
2329
2308
parser.add_argument("--no-restore", action="store_false",
2330
2309
dest="restore", help="Do not restore stored"
2331
" state", default=None)
2332
2311
parser.add_argument("--socket", type=int,
2333
2312
help="Specify a file descriptor to a network"
2334
2313
" socket to use instead of creating one")
2335
2314
parser.add_argument("--statedir", metavar="DIR",
2336
2315
help="Directory to save/restore state in")
2337
2316
parser.add_argument("--foreground", action="store_true",
2338
help="Run in foreground", default=None)
2317
help="Run in foreground")
2340
2319
options = parser.parse_args()
2342
2321
if options.check:
2344
fail_count, test_count = doctest.testmod()
2345
sys.exit(os.EX_OK if fail_count == 0 else 1)
2347
2326
# Default values for config file for server-global settings
2348
2327
server_defaults = { "interface": "",
2400
2379
for option in server_settings.keys():
2401
2380
if type(server_settings[option]) is str:
2402
2381
server_settings[option] = unicode(server_settings[option])
2403
# Force all boolean options to be boolean
2404
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2406
server_settings[option] = bool(server_settings[option])
2407
2382
# Debug implies foreground
2408
2383
if server_settings["debug"]:
2409
2384
server_settings["foreground"] = True
2457
2432
socketfd=(server_settings["socket"]
2459
2434
if not foreground:
2460
pidfilename = "/run/mandos.pid"
2461
if not os.path.isdir("/run/."):
2462
pidfilename = "/var/run/mandos.pid"
2435
pidfilename = "/var/run/mandos.pid"
2465
2438
pidfile = open(pidfilename, "w")
2551
2524
old_client_settings = {}
2552
2525
clients_data = {}
2554
# This is used to redirect stdout and stderr for checker processes
2556
wnull = open(os.devnull, "w") # A writable /dev/null
2557
# Only used if server is running in foreground but not in debug
2559
if debug or not foreground:
2562
2527
# Get client data and settings from last running state.
2563
2528
if server_settings["restore"]:
2581
2546
with PGPEngine() as pgp:
2582
2547
for client_name, client in clients_data.iteritems():
2583
# Skip removed clients
2584
if client_name not in client_settings:
2587
2548
# Decide which value to use after restoring saved state.
2588
2549
# We have three different values: Old config file,
2589
2550
# new config file, and saved state.
2651
2612
# Create all client objects
2652
2613
for client_name, client in clients_data.iteritems():
2653
2614
tcp_server.clients[client_name] = client_class(
2654
name = client_name, settings = client,
2655
server_settings = server_settings)
2615
name = client_name, settings = client)
2657
2617
if not tcp_server.clients:
2658
2618
logger.warning("No clients defined")
2759
2718
# A list of attributes that can not be pickled
2761
2720
exclude = set(("bus", "changedstate", "secret",
2762
"checker", "server_settings"))
2763
2722
for name, typ in (inspect.getmembers
2764
2723
(dbus.service.Object)):
2765
2724
exclude.add(name)