/mandos/trunk : revision 742

1

#!/usr/bin/python

1

#!/usr/bin/python2.7

2

# -*- mode: python; coding: utf-8 -*-

3

#

4

# Mandos server - give out binary blobs to connecting clients.

88

except ImportError:

89

SO_BINDTODEVICE = None

90

91

version = "1.6.5"

91

if sys.version_info.major == 2:

92

str = unicode

93

94

version = "1.6.9"

92

95

stored_state_file = "clients.pickle"

93

96

94

97

logger = logging.getLogger()

104

107

SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h

105

108

with contextlib.closing(socket.socket()) as s:

106

109

ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

107

struct.pack(str("16s16x"),

108

interface))

109

interface_index = struct.unpack(str("I"),

110

ifreq[16:20])[0]

110

struct.pack(b"16s16x", interface))

111

interface_index = struct.unpack("I", ifreq[16:20])[0]

111

112

return interface_index

112

113

114

118

119

syslogger = (logging.handlers.SysLogHandler

119

120

(facility =

120

121

logging.handlers.SysLogHandler.LOG_DAEMON,

121

address = str("/dev/log")))

122

address = "/dev/log"))

122

123

syslogger.setFormatter(logging.Formatter

123

124

('Mandos [%(process)d]: %(levelname)s:'

124

125

' %(message)s'))

224

225

class AvahiError(Exception):

225

226

def __init__(self, value, *args, **kwargs):

226

227

self.value = value

227

super(AvahiError, self).__init__(value, *args, **kwargs)

228

def __unicode__(self):

229

return unicode(repr(self.value))

228

return super(AvahiError, self).__init__(value, *args,

229

**kwargs)

230

231

class AvahiServiceError(AvahiError):

232

pass

275

self.bus = bus

276

self.entry_group_state_changed_match = None

277

278

def rename(self):

278

def rename(self, remove=True):

279

"""Derived from the Avahi example code"""

280

if self.rename_count >= self.max_renames:

281

logger.critical("No suitable Zeroconf service name found"

282

" after %i retries, exiting.",

283

self.rename_count)

284

raise AvahiServiceError("Too many renames")

285

self.name = unicode(self.server

286

.GetAlternativeServiceName(self.name))

285

self.name = str(self.server

286

.GetAlternativeServiceName(self.name))

287

self.rename_count += 1

287

288

logger.info("Changing Zeroconf service name to %r ...",

288

289

self.name)

289

self.remove()

290

if remove:

291

self.remove()

290

292

try:

291

293

self.add()

292

294

except dbus.exceptions.DBusException as error:

293

logger.critical("D-Bus Exception", exc_info=error)

294

self.cleanup()

295

os._exit(1)

296

self.rename_count += 1

295

if (error.get_dbus_name()

296

== "org.freedesktop.Avahi.CollisionError"):

297

logger.info("Local Zeroconf service name collision.")

298

return self.rename(remove=False)

299

else:

300

logger.critical("D-Bus Exception", exc_info=error)

301

self.cleanup()

302

os._exit(1)

297

303

298

304

def remove(self):

299

305

"""Derived from the Avahi example code"""

337

343

self.rename()

338

344

elif state == avahi.ENTRY_GROUP_FAILURE:

339

345

logger.critical("Avahi: Error in group state changed %s",

340

unicode(error))

341

raise AvahiGroupError("State changed: {0!s}"

346

str(error))

347

raise AvahiGroupError("State changed: {!s}"

342

348

.format(error))

343

349

344

350

def cleanup(self):

391

397

392

398

393

399

class AvahiServiceToSyslog(AvahiService):

394

def rename(self):

400

def rename(self, *args, **kwargs):

395

401

"""Add the new name to the syslog messages"""

396

ret = AvahiService.rename(self)

402

ret = AvahiService.rename(self, *args, **kwargs)

397

403

syslogger.setFormatter(logging.Formatter

398

('Mandos ({0}) [%(process)d]:'

404

('Mandos ({}) [%(process)d]:'

399

405

' %(levelname)s: %(message)s'

400

406

.format(self.name)))

401

407

return ret

402

408

403

409

404

def timedelta_to_milliseconds(td):

405

"Convert a datetime.timedelta() to milliseconds"

406

return ((td.days * 24 * 60 * 60 * 1000)

407

+ (td.seconds * 1000)

408

+ (td.microseconds // 1000))

409

410

411

410

class Client(object):

412

411

"""A representation of a client host served by this server.

413

412

468

467

"enabled": "True",

469

468

}

470

469

471

def timeout_milliseconds(self):

472

"Return the 'timeout' attribute in milliseconds"

473

return timedelta_to_milliseconds(self.timeout)

474

475

def extended_timeout_milliseconds(self):

476

"Return the 'extended_timeout' attribute in milliseconds"

477

return timedelta_to_milliseconds(self.extended_timeout)

478

479

def interval_milliseconds(self):

480

"Return the 'interval' attribute in milliseconds"

481

return timedelta_to_milliseconds(self.interval)

482

483

def approval_delay_milliseconds(self):

484

return timedelta_to_milliseconds(self.approval_delay)

485

486

470

@staticmethod

487

471

def config_parser(config):

488

472

"""Construct a new dict of client settings of this form:

503

487

client["enabled"] = config.getboolean(client_name,

504

488

"enabled")

505

489

490

# Uppercase and remove spaces from fingerprint for later

491

# comparison purposes with return value from the

492

# fingerprint() function

506

493

client["fingerprint"] = (section["fingerprint"].upper()

507

494

.replace(" ", ""))

508

495

if "secret" in section:

513

500

"rb") as secfile:

514

501

client["secret"] = secfile.read()

515

502

else:

516

raise TypeError("No secret or secfile for section {0}"

503

raise TypeError("No secret or secfile for section {}"

517

504

.format(section))

518

505

client["timeout"] = string_to_delta(section["timeout"])

519

506

client["extended_timeout"] = string_to_delta(

536

523

server_settings = {}

537

524

self.server_settings = server_settings

538

525

# adding all client settings

539

for setting, value in settings.iteritems():

526

for setting, value in settings.items():

540

527

setattr(self, setting, value)

541

528

542

529

if self.enabled:

550

537

self.expires = None

551

538

552

539

logger.debug("Creating client %r", self.name)

553

# Uppercase and remove spaces from fingerprint for later

554

# comparison purposes with return value from the fingerprint()

555

# function

556

540

logger.debug(" Fingerprint: %s", self.fingerprint)

557

541

self.created = settings.get("created",

558

542

datetime.datetime.utcnow())

625

609

if self.checker_initiator_tag is not None:

626

610

gobject.source_remove(self.checker_initiator_tag)

627

611

self.checker_initiator_tag = (gobject.timeout_add

628

(self.interval_milliseconds(),

612

(int(self.interval

613

.total_seconds() * 1000),

629

614

self.start_checker))

630

615

# Schedule a disable() when 'timeout' has passed

631

616

if self.disable_initiator_tag is not None:

632

617

gobject.source_remove(self.disable_initiator_tag)

633

618

self.disable_initiator_tag = (gobject.timeout_add

634

(self.timeout_milliseconds(),

635

self.disable))

619

(int(self.timeout

620

.total_seconds() * 1000),

621

self.disable))

636

622

# Also start a new checker *right now*.

637

623

self.start_checker()

638

624

669

655

self.disable_initiator_tag = None

670

656

if getattr(self, "enabled", False):

671

657

self.disable_initiator_tag = (gobject.timeout_add

672

(timedelta_to_milliseconds

673

(timeout), self.disable))

658

(int(timeout.total_seconds()

659

* 1000), self.disable))

674

660

self.expires = datetime.datetime.utcnow() + timeout

675

661

676

662

def need_approval(self):

707

693

# Start a new checker if needed

708

694

if self.checker is None:

709

695

# Escape attributes for the shell

710

escaped_attrs = dict(

711

(attr, re.escape(unicode(getattr(self, attr))))

712

for attr in

713

self.runtime_expansions)

696

escaped_attrs = { attr:

697

re.escape(str(getattr(self, attr)))

698

for attr in self.runtime_expansions }

714

699

try:

715

700

command = self.checker_command % escaped_attrs

716

701

except TypeError as error:

797

782

# "Set" method, so we fail early here:

798

783

if byte_arrays and signature != "ay":

799

784

raise ValueError("Byte arrays not supported for non-'ay'"

800

" signature {0!r}".format(signature))

785

" signature {!r}".format(signature))

801

786

def decorator(func):

802

787

func._dbus_is_property = True

803

788

func._dbus_interface = dbus_interface

834

819

"""Decorator to annotate D-Bus methods, signals or properties

835

820

Usage:

836

821

822

@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",

823

"org.freedesktop.DBus.Property."

824

"EmitsChangedSignal": "false"})

837

825

@dbus_service_property("org.example.Interface", signature="b",

838

826

access="r")

839

@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",

840

"org.freedesktop.DBus.Property."

841

"EmitsChangedSignal": "false"})

842

827

def Property_dbus_property(self):

843

828

return dbus.Boolean(False)

844

829

"""

851

836

class DBusPropertyException(dbus.exceptions.DBusException):

852

837

"""A base class for D-Bus property-related exceptions

853

838

"""

854

def __unicode__(self):

855

return unicode(str(self))

856

839

pass

857

840

858

841

class DBusPropertyAccessException(DBusPropertyException):

859

842

"""A property's access permissions disallows an operation.

882

865

If called like _is_dbus_thing("method") it returns a function

883

866

suitable for use as predicate to inspect.getmembers().

884

867

"""

885

return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),

868

return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),

886

869

False)

887

870

888

871

def _get_all_dbus_things(self, thing):

938

921

# signatures other than "ay".

939

922

if prop._dbus_signature != "ay":

940

923

raise ValueError("Byte arrays not supported for non-"

941

"'ay' signature {0!r}"

924

"'ay' signature {!r}"

942

925

.format(prop._dbus_signature))

943

926

value = dbus.ByteArray(b''.join(chr(byte)

944

927

for byte in value))

969

952

value.variant_level+1)

970

953

return dbus.Dictionary(properties, signature="sv")

971

954

955

@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")

956

def PropertiesChanged(self, interface_name, changed_properties,

957

invalidated_properties):

958

"""Standard D-Bus PropertiesChanged() signal, see D-Bus

959

standard.

960

"""

961

pass

962

972

963

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

973

964

out_signature="s",

974

965

path_keyword='object_path',

1009

1000

(prop,

1010

1001

"_dbus_annotations",

1011

1002

{}))

1012

for name, value in annots.iteritems():

1003

for name, value in annots.items():

1013

1004

ann_tag = document.createElement(

1014

1005

"annotation")

1015

1006

ann_tag.setAttribute("name", name)

1018

1009

# Add interface annotation tags

1019

1010

for annotation, value in dict(

1020

1011

itertools.chain.from_iterable(

1021

annotations().iteritems()

1012

annotations().items()

1022

1013

for name, annotations in

1023

1014

self._get_all_dbus_things("interface")

1024

1015

if name == if_tag.getAttribute("name")

1025

)).iteritems():

1016

)).items():

1026

1017

ann_tag = document.createElement("annotation")

1027

1018

ann_tag.setAttribute("name", annotation)

1028

1019

ann_tag.setAttribute("value", value)

1084

1075

"""

1085

1076

def wrapper(cls):

1086

1077

for orig_interface_name, alt_interface_name in (

1087

alt_interface_names.iteritems()):

1078

alt_interface_names.items()):

1088

1079

attr = {}

1089

1080

interface_names = set()

1090

1081

# Go though all attributes of the class

1207

1198

attribute.func_closure)))

1208

1199

if deprecate:

1209

1200

# Deprecate all alternate interfaces

1210

iname="_AlternateDBusNames_interface_annotation{0}"

1201

iname="_AlternateDBusNames_interface_annotation{}"

1211

1202

for interface_name in interface_names:

1212

1203

@dbus_interface_annotations(interface_name)

1213

1204

def func(self):

1222

1213

if interface_names:

1223

1214

# Replace the class with a new subclass of it with

1224

1215

# methods, signals, etc. as created above.

1225

cls = type(b"{0}Alternate".format(cls.__name__),

1216

cls = type(b"{}Alternate".format(cls.__name__),

1226

1217

(cls,), attr)

1227

1218

return cls

1228

1219

return wrapper

1241

1232

runtime_expansions = (Client.runtime_expansions

1242

1233

+ ("dbus_object_path",))

1243

1234

1235

_interface = "se.recompile.Mandos.Client"

1236

1244

1237

# dbus.service.Object doesn't use super(), so we can't either.

1245

1238

1246

1239

def __init__(self, bus = None, *args, **kwargs):

1248

1241

Client.__init__(self, *args, **kwargs)

1249

1242

# Only now, when this client is initialized, can it show up on

1250

1243

# the D-Bus

1251

client_object_name = unicode(self.name).translate(

1244

client_object_name = str(self.name).translate(

1252

1245

{ord("."): ord("_"),

1253

1246

ord("-"): ord("_")})

1254

1247

self.dbus_object_path = (dbus.ObjectPath

1258

1251

1259

1252

def notifychangeproperty(transform_func,

1260

1253

dbus_name, type_func=lambda x: x,

1261

variant_level=1):

1254

variant_level=1, invalidate_only=False,

1255

_interface=_interface):

1262

1256

""" Modify a variable so that it's a property which announces

1263

1257

its changes to DBus.

1264

1258

1269

1263

to the D-Bus. Default: no transform

1270

1264

variant_level: D-Bus variant level. Default: 1

1271

1265

"""

1272

attrname = "_{0}".format(dbus_name)

1266

attrname = "_{}".format(dbus_name)

1273

1267

def setter(self, value):

1274

1268

if hasattr(self, "dbus_object_path"):

1275

1269

if (not hasattr(self, attrname) or

1276

1270

type_func(getattr(self, attrname, None))

1277

1271

!= type_func(value)):

1278

dbus_value = transform_func(type_func(value),

1279

variant_level

1280

=variant_level)

1281

self.PropertyChanged(dbus.String(dbus_name),

1282

dbus_value)

1272

if invalidate_only:

1273

self.PropertiesChanged(_interface,

1274

dbus.Dictionary(),

1275

dbus.Array

1276

((dbus_name,)))

1277

else:

1278

dbus_value = transform_func(type_func(value),

1279

variant_level

1280

=variant_level)

1281

self.PropertyChanged(dbus.String(dbus_name),

1282

dbus_value)

1283

self.PropertiesChanged(_interface,

1284

dbus.Dictionary({

1285

dbus.String(dbus_name):

1286

dbus_value }), dbus.Array())

1283

1287

setattr(self, attrname, value)

1284

1288

1285

1289

return property(lambda self: getattr(self, attrname), setter)

1305

1309

approval_delay = notifychangeproperty(dbus.UInt64,

1306

1310

"ApprovalDelay",

1307

1311

type_func =

1308

timedelta_to_milliseconds)

1312

lambda td: td.total_seconds()

1313

* 1000)

1309

1314

approval_duration = notifychangeproperty(

1310

1315

dbus.UInt64, "ApprovalDuration",

1311

type_func = timedelta_to_milliseconds)

1316

type_func = lambda td: td.total_seconds() * 1000)

1312

1317

host = notifychangeproperty(dbus.String, "Host")

1313

1318

timeout = notifychangeproperty(dbus.UInt64, "Timeout",

1314

type_func =

1315

timedelta_to_milliseconds)

1319

type_func = lambda td:

1320

td.total_seconds() * 1000)

1316

1321

extended_timeout = notifychangeproperty(

1317

1322

dbus.UInt64, "ExtendedTimeout",

1318

type_func = timedelta_to_milliseconds)

1323

type_func = lambda td: td.total_seconds() * 1000)

1319

1324

interval = notifychangeproperty(dbus.UInt64,

1320

1325

"Interval",

1321

1326

type_func =

1322

timedelta_to_milliseconds)

1327

lambda td: td.total_seconds()

1328

* 1000)

1323

1329

checker_command = notifychangeproperty(dbus.String, "Checker")

1330

secret = notifychangeproperty(dbus.ByteArray, "Secret",

1331

invalidate_only=True)

1324

1332

1325

1333

del notifychangeproperty

1326

1334

1368

1376

1369

1377

def approve(self, value=True):

1370

1378

self.approved = value

1371

gobject.timeout_add(timedelta_to_milliseconds

1372

(self.approval_duration),

1373

self._reset_approved)

1379

gobject.timeout_add(int(self.approval_duration.total_seconds()

1380

* 1000), self._reset_approved)

1374

1381

self.send_changedstate()

1375

1382

1376

1383

## D-Bus methods, signals & properties

1377

_interface = "se.recompile.Mandos.Client"

1378

1384

1379

1385

## Interfaces

1380

1386

1381

@dbus_interface_annotations(_interface)

1382

def _foo(self):

1383

return { "org.freedesktop.DBus.Property.EmitsChangedSignal":

1384

"false"}

1385

1386

1387

## Signals

1387

1388

1389

# CheckerCompleted - signal

1398

1399

pass

1399

1400

1401

# PropertyChanged - signal

1402

@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})

1401

1403

@dbus.service.signal(_interface, signature="sv")

1402

1404

def PropertyChanged(self, property, value):

1403

1405

"D-Bus signal"

1479

1481

access="readwrite")

1480

1482

def ApprovalDelay_dbus_property(self, value=None):

1481

1483

if value is None: # get

1482

return dbus.UInt64(self.approval_delay_milliseconds())

1484

return dbus.UInt64(self.approval_delay.total_seconds()

1485

* 1000)

1483

1486

self.approval_delay = datetime.timedelta(0, 0, 0, value)

1484

1487

1485

1488

# ApprovalDuration - property

1487

1490

access="readwrite")

1488

1491

def ApprovalDuration_dbus_property(self, value=None):

1489

1492

if value is None: # get

1490

return dbus.UInt64(timedelta_to_milliseconds(

1491

self.approval_duration))

1493

return dbus.UInt64(self.approval_duration.total_seconds()

1494

* 1000)

1492

1495

self.approval_duration = datetime.timedelta(0, 0, 0, value)

1493

1496

1494

1497

# Name - property

1507

1510

def Host_dbus_property(self, value=None):

1508

1511

if value is None: # get

1509

1512

return dbus.String(self.host)

1510

self.host = unicode(value)

1513

self.host = str(value)

1511

1514

1512

1515

# Created - property

1513

1516

@dbus_service_property(_interface, signature="s", access="read")

1560

1563

access="readwrite")

1561

1564

def Timeout_dbus_property(self, value=None):

1562

1565

if value is None: # get

1563

return dbus.UInt64(self.timeout_milliseconds())

1566

return dbus.UInt64(self.timeout.total_seconds() * 1000)

1564

1567

old_timeout = self.timeout

1565

1568

self.timeout = datetime.timedelta(0, 0, 0, value)

1566

1569

# Reschedule disabling

1577

1580

gobject.source_remove(self.disable_initiator_tag)

1578

1581

self.disable_initiator_tag = (

1579

1582

gobject.timeout_add(

1580

timedelta_to_milliseconds(self.expires - now),

1581

self.disable))

1583

int((self.expires - now).total_seconds()

1584

* 1000), self.disable))

1582

1585

1583

1586

# ExtendedTimeout - property

1584

1587

@dbus_service_property(_interface, signature="t",

1585

1588

access="readwrite")

1586

1589

def ExtendedTimeout_dbus_property(self, value=None):

1587

1590

if value is None: # get

1588

return dbus.UInt64(self.extended_timeout_milliseconds())

1591

return dbus.UInt64(self.extended_timeout.total_seconds()

1592

* 1000)

1589

1593

self.extended_timeout = datetime.timedelta(0, 0, 0, value)

1590

1594

1591

1595

# Interval - property

1593

1597

access="readwrite")

1594

1598

def Interval_dbus_property(self, value=None):

1595

1599

if value is None: # get

1596

return dbus.UInt64(self.interval_milliseconds())

1600

return dbus.UInt64(self.interval.total_seconds() * 1000)

1597

1601

self.interval = datetime.timedelta(0, 0, 0, value)

1598

1602

if getattr(self, "checker_initiator_tag", None) is None:

1599

1603

return

1610

1614

def Checker_dbus_property(self, value=None):

1611

1615

if value is None: # get

1612

1616

return dbus.String(self.checker_command)

1613

self.checker_command = unicode(value)

1617

self.checker_command = str(value)

1614

1618

1615

1619

# CheckerRunning - property

1616

1620

@dbus_service_property(_interface, signature="b",

1632

1636

@dbus_service_property(_interface, signature="ay",

1633

1637

access="write", byte_arrays=True)

1634

1638

def Secret_dbus_property(self, value):

1635

self.secret = str(value)

1639

self.secret = bytes(value)

1636

1640

1637

1641

del _interface

1638

1642

1672

1676

def handle(self):

1673

1677

with contextlib.closing(self.server.child_pipe) as child_pipe:

1674

1678

logger.info("TCP connection from: %s",

1675

unicode(self.client_address))

1679

str(self.client_address))

1676

1680

logger.debug("Pipe FD: %d",

1677

1681

self.server.child_pipe.fileno())

1678

1682

1759

1763

if self.server.use_dbus:

1760

1764

# Emit D-Bus signal

1761

1765

client.NeedApproval(

1762

client.approval_delay_milliseconds(),

1763

client.approved_by_default)

1766

client.approval_delay.total_seconds()

1767

* 1000, client.approved_by_default)

1764

1768

else:

1765

1769

logger.warning("Client %s was not approved",

1766

1770

client.name)

1772

1776

#wait until timeout or approved

1773

1777

time = datetime.datetime.now()

1774

1778

client.changedstate.acquire()

1775

client.changedstate.wait(

1776

float(timedelta_to_milliseconds(delay)

1777

/ 1000))

1779

client.changedstate.wait(delay.total_seconds())

1778

1780

client.changedstate.release()

1779

1781

time2 = datetime.datetime.now()

1780

1782

if (time2 - time) >= delay:

1979

1981

try:

1980

1982

self.socket.setsockopt(socket.SOL_SOCKET,

1981

1983

SO_BINDTODEVICE,

1982

str(self.interface + '\0'))

1984

(self.interface + "\0")

1985

.encode("utf-8"))

1983

1986

except socket.error as error:

1984

1987

if error.errno == errno.EPERM:

1985

1988

logger.error("No permission to bind to"

2188

2191

token_duration = Token(re.compile(r"P"), None,

2189

2192

frozenset((token_year, token_month,

2190

2193

token_day, token_time,

2191

token_week))),

2194

token_week)))

2192

2195

# Define starting values

2193

2196

value = datetime.timedelta() # Value so far

2194

2197

found_token = None

2195

followers = frozenset(token_duration,) # Following valid tokens

2198

followers = frozenset((token_duration,)) # Following valid tokens

2196

2199

s = duration # String left to parse

2197

2200

# Loop until end token is found

2198

2201

while found_token is not token_end:

2245

2248

timevalue = datetime.timedelta(0)

2246

2249

for s in interval.split():

2247

2250

try:

2248

suffix = unicode(s[-1])

2251

suffix = s[-1]

2249

2252

value = int(s[:-1])

2250

2253

if suffix == "d":

2251

2254

delta = datetime.timedelta(value)

2258

2261

elif suffix == "w":

2259

2262

delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)

2260

2263

else:

2261

raise ValueError("Unknown suffix {0!r}"

2264

raise ValueError("Unknown suffix {!r}"

2262

2265

.format(suffix))

2263

2266

except IndexError as e:

2264

2267

raise ValueError(*(e.args))

2281

2284

# Close all standard open file descriptors

2282

2285

null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)

2283

2286

if not stat.S_ISCHR(os.fstat(null).st_mode):

2284

raise OSError(errno.ENODEV,

2285

"{0} not a character device"

2287

raise OSError(errno.ENODEV, "{} not a character device"

2286

2288

.format(os.devnull))

2287

2289

os.dup2(null, sys.stdin.fileno())

2288

2290

os.dup2(null, sys.stdout.fileno())

2298

2300

2299

2301

parser = argparse.ArgumentParser()

2300

2302

parser.add_argument("-v", "--version", action="version",

2301

version = "%(prog)s {0}".format(version),

2303

version = "%(prog)s {}".format(version),

2302

2304

help="show version number and exit")

2303

2305

parser.add_argument("-i", "--interface", metavar="IF",

2304

2306

help="Bind to interface IF")

2354

2356

"port": "",

2355

2357

"debug": "False",

2356

2358

"priority":

2357

"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",

2359

"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"

2360

":+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",

2358

2361

"servicename": "Mandos",

2359

2362

"use_dbus": "True",

2360

2363

"use_ipv6": "True",

2403

2406

del options

2404

2407

# Force all strings to be unicode

2405

2408

for option in server_settings.keys():

2406

if type(server_settings[option]) is str:

2407

server_settings[option] = unicode(server_settings[option])

2409

if isinstance(server_settings[option], bytes):

2410

server_settings[option] = (server_settings[option]

2411

.decode("utf-8"))

2408

2412

# Force all boolean options to be boolean

2409

2413

for option in ("debug", "use_dbus", "use_ipv6", "restore",

2410

2414

"foreground", "zeroconf"):

2443

2447

2444

2448

if server_settings["servicename"] != "Mandos":

2445

2449

syslogger.setFormatter(logging.Formatter

2446

('Mandos ({0}) [%(process)d]:'

2450

('Mandos ({}) [%(process)d]:'

2447

2451

' %(levelname)s: %(message)s'

2448

2452

.format(server_settings

2449

2453

["servicename"])))

2553

2557

protocol = protocol, bus = bus)

2554

2558

if server_settings["interface"]:

2555

2559

service.interface = (if_nametoindex

2556

(str(server_settings["interface"])))

2560

(server_settings["interface"]

2561

.encode("utf-8")))

2557

2562

2558

2563

global multiprocessing_manager

2559

2564

multiprocessing_manager = multiprocessing.Manager()

2583

2588

os.remove(stored_state_path)

2584

2589

except IOError as e:

2585

2590

if e.errno == errno.ENOENT:

2586

logger.warning("Could not load persistent state: {0}"

2591

logger.warning("Could not load persistent state: {}"

2587

2592

.format(os.strerror(e.errno)))

2588

2593

else:

2589

2594

logger.critical("Could not load persistent state:",

2594

2599

"EOFError:", exc_info=e)

2595

2600

2596

2601

with PGPEngine() as pgp:

2597

for client_name, client in clients_data.iteritems():

2602

for client_name, client in clients_data.items():

2598

2603

# Skip removed clients

2599

2604

if client_name not in client_settings:

2600

2605

continue

2625

2630

if datetime.datetime.utcnow() >= client["expires"]:

2626

2631

if not client["last_checked_ok"]:

2627

2632

logger.warning(

2628

"disabling client {0} - Client never "

2633

"disabling client {} - Client never "

2629

2634

"performed a successful checker"

2630

2635

.format(client_name))

2631

2636

client["enabled"] = False

2632

2637

elif client["last_checker_status"] != 0:

2633

2638

logger.warning(

2634

"disabling client {0} - Client "

2635

"last checker failed with error code {1}"

2639

"disabling client {} - Client last"

2640

" checker failed with error code {}"

2636

2641

.format(client_name,

2637

2642

client["last_checker_status"]))

2638

2643

client["enabled"] = False

2641

2646

.utcnow()

2642

2647

+ client["timeout"])

2643

2648

logger.debug("Last checker succeeded,"

2644

" keeping {0} enabled"

2649

" keeping {} enabled"

2645

2650

.format(client_name))

2646

2651

try:

2647

2652

client["secret"] = (

2650

2655

["secret"]))

2651

2656

except PGPError:

2652

2657

# If decryption fails, we use secret from new settings

2653

logger.debug("Failed to decrypt {0} old secret"

2658

logger.debug("Failed to decrypt {} old secret"

2654

2659

.format(client_name))

2655

2660

client["secret"] = (

2656

2661

client_settings[client_name]["secret"])

2664

2669

clients_data[client_name] = client_settings[client_name]

2665

2670

2666

2671

# Create all client objects

2667

for client_name, client in clients_data.iteritems():

2672

for client_name, client in clients_data.items():

2668

2673

tcp_server.clients[client_name] = client_class(

2669

2674

name = client_name, settings = client,

2670

2675

server_settings = server_settings)

2677

2682

try:

2678

2683

with pidfile:

2679

2684

pid = os.getpid()

2680

pidfile.write(str(pid) + "\n".encode("utf-8"))

2685

pidfile.write("{}\n".format(pid).encode("utf-8"))

2681

2686

except IOError:

2682

2687

logger.error("Could not write to file %r with PID %d",

2683

2688

pidfilename, pid)

2729

2734

def GetAllClientsWithProperties(self):

2730

2735

"D-Bus method"

2731

2736

return dbus.Dictionary(

2732

((c.dbus_object_path, c.GetAll(""))

2733

for c in tcp_server.clients.itervalues()),

2737

{ c.dbus_object_path: c.GetAll("")

2738

for c in tcp_server.clients.itervalues() },

2734

2739

signature="oa{sv}")

2735

2740

2736

2741

@dbus.service.method(_interface, in_signature="o")

2774

2779

2775

2780

# A list of attributes that can not be pickled

2776

2781

# + secret.

2777

exclude = set(("bus", "changedstate", "secret",

2778

"checker", "server_settings"))

2782

exclude = { "bus", "changedstate", "secret",

2783

"checker", "server_settings" }

2779

2784

for name, typ in (inspect.getmembers

2780

2785

(dbus.service.Object)):

2781

2786

exclude.add(name)

2804

2809

except NameError:

2805

2810

pass

2806

2811

if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):

2807

logger.warning("Could not save persistent state: {0}"

2812

logger.warning("Could not save persistent state: {}"

2808

2813

.format(os.strerror(e.errno)))

2809

2814

else:

2810

2815

logger.warning("Could not save persistent state:",