/mandos/trunk : revision 752

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.

11

# "AvahiService" class, and some lines in "main".

12

#

13

# Everything else is

14

15

14

15

16

#

17

# This program is free software: you can redistribute it and/or modify

18

# it under the terms of the GNU General Public License as published by

36

37

from future_builtins import *

38

39

import SocketServer as socketserver

39

try:

40

import SocketServer as socketserver

41

except ImportError:

42

import socketserver

40

43

import socket

41

44

import argparse

42

45

import datetime

47

50

import gnutls.library.functions

48

51

import gnutls.library.constants

49

52

import gnutls.library.types

50

import ConfigParser as configparser

53

try:

54

import ConfigParser as configparser

55

except ImportError:

56

import configparser

51

57

import sys

52

58

import re

53

59

import os

62

68

import struct

63

69

import fcntl

64

70

import functools

65

import cPickle as pickle

71

try:

72

import cPickle as pickle

73

except ImportError:

74

import pickle

66

75

import multiprocessing

67

76

import types

68

77

import binascii

69

78

import tempfile

70

79

import itertools

71

80

import collections

81

import codecs

72

82

73

83

import dbus

74

84

import dbus.service

75

import gobject

85

try:

86

import gobject

87

except ImportError:

88

from gi.repository import GObject as gobject

76

89

import avahi

77

90

from dbus.mainloop.glib import DBusGMainLoop

78

91

import ctypes

88

101

except ImportError:

89

102

SO_BINDTODEVICE = None

90

103

91

version = "1.6.5"

104

if sys.version_info.major == 2:

105

str = unicode

106

107

version = "1.6.9"

92

108

stored_state_file = "clients.pickle"

93

109

94

110

logger = logging.getLogger()

95

111

syslogger = None

96

112

97

113

try:

98

if_nametoindex = (ctypes.cdll.LoadLibrary

99

(ctypes.util.find_library("c"))

100

.if_nametoindex)

114

if_nametoindex = ctypes.cdll.LoadLibrary(

115

ctypes.util.find_library("c")).if_nametoindex

101

116

except (OSError, AttributeError):

117

102

118

def if_nametoindex(interface):

103

119

"Get an interface index the hard way, i.e. using fcntl()"

104

120

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

105

121

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

106

122

ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

107

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

108

interface))

109

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

110

ifreq[16:20])[0]

123

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

124

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

111

125

return interface_index

112

126

113

127

115

129

"""init logger and add loglevel"""

116

130

117

131

global syslogger

118

syslogger = (logging.handlers.SysLogHandler

119

(facility =

120

logging.handlers.SysLogHandler.LOG_DAEMON,

121

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

132

syslogger = (logging.handlers.SysLogHandler(

133

facility = logging.handlers.SysLogHandler.LOG_DAEMON,

134

address = "/dev/log"))

122

135

syslogger.setFormatter(logging.Formatter

123

136

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

124

137

' %(message)s'))

141

154

142

155

class PGPEngine(object):

143

156

"""A simple class for OpenPGP symmetric encryption & decryption"""

157

144

158

def __init__(self):

145

159

self.tempdir = tempfile.mkdtemp(prefix="mandos-")

146

160

self.gnupgargs = ['--batch',

185

199

186

200

def encrypt(self, data, password):

187

201

passphrase = self.password_encode(password)

188

with tempfile.NamedTemporaryFile(dir=self.tempdir

189

) as passfile:

202

with tempfile.NamedTemporaryFile(

203

dir=self.tempdir) as passfile:

190

204

passfile.write(passphrase)

191

205

passfile.flush()

192

206

proc = subprocess.Popen(['gpg', '--symmetric',

203

217

204

218

def decrypt(self, data, password):

205

219

passphrase = self.password_encode(password)

206

with tempfile.NamedTemporaryFile(dir = self.tempdir

207

) as passfile:

220

with tempfile.NamedTemporaryFile(

221

dir = self.tempdir) as passfile:

208

222

passfile.write(passphrase)

209

223

passfile.flush()

210

224

proc = subprocess.Popen(['gpg', '--decrypt',

214

228

stdin = subprocess.PIPE,

215

229

stdout = subprocess.PIPE,

216

230

stderr = subprocess.PIPE)

217

decrypted_plaintext, err = proc.communicate(input

218

= data)

231

decrypted_plaintext, err = proc.communicate(input = data)

219

232

if proc.returncode != 0:

220

233

raise PGPError(err)

221

234

return decrypted_plaintext

224

237

class AvahiError(Exception):

225

238

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

226

239

self.value = value

227

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

228

def __unicode__(self):

229

return unicode(repr(self.value))

240

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

241

**kwargs)

242

230

243

231

244

class AvahiServiceError(AvahiError):

232

245

pass

233

246

247

234

248

class AvahiGroupError(AvahiError):

235

249

pass

236

250

256

270

bus: dbus.SystemBus()

257

271

"""

258

272

259

def __init__(self, interface = avahi.IF_UNSPEC, name = None,

260

servicetype = None, port = None, TXT = None,

261

domain = "", host = "", max_renames = 32768,

262

protocol = avahi.PROTO_UNSPEC, bus = None):

273

def __init__(self,

274

interface = avahi.IF_UNSPEC,

275

name = None,

276

servicetype = None,

277

port = None,

278

TXT = None,

279

domain = "",

280

host = "",

281

max_renames = 32768,

282

protocol = avahi.PROTO_UNSPEC,

283

bus = None):

263

284

self.interface = interface

264

285

self.name = name

265

286

self.type = servicetype

275

296

self.bus = bus

276

297

self.entry_group_state_changed_match = None

277

298

278

def rename(self):

299

def rename(self, remove=True):

279

300

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

280

301

if self.rename_count >= self.max_renames:

281

302

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

282

303

" after %i retries, exiting.",

283

304

self.rename_count)

284

305

raise AvahiServiceError("Too many renames")

285

self.name = unicode(self.server

286

.GetAlternativeServiceName(self.name))

306

self.name = str(

307

self.server.GetAlternativeServiceName(self.name))

308

self.rename_count += 1

287

309

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

288

310

self.name)

289

self.remove()

311

if remove:

312

self.remove()

290

313

try:

291

314

self.add()

292

315

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

316

if (error.get_dbus_name()

317

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

318

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

319

return self.rename(remove=False)

320

else:

321

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

322

self.cleanup()

323

os._exit(1)

297

324

298

325

def remove(self):

299

326

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

337

364

self.rename()

338

365

elif state == avahi.ENTRY_GROUP_FAILURE:

339

366

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

340

unicode(error))

341

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

342

.format(error))

367

str(error))

368

raise AvahiGroupError("State changed: {!s}".format(error))

343

369

344

370

def cleanup(self):

345

371

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

355

381

def server_state_changed(self, state, error=None):

356

382

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

357

383

logger.debug("Avahi server state change: %i", state)

358

bad_states = { avahi.SERVER_INVALID:

359

"Zeroconf server invalid",

360

avahi.SERVER_REGISTERING: None,

361

avahi.SERVER_COLLISION:

362

"Zeroconf server name collision",

363

avahi.SERVER_FAILURE:

364

"Zeroconf server failure" }

384

bad_states = {

385

avahi.SERVER_INVALID: "Zeroconf server invalid",

386

avahi.SERVER_REGISTERING: None,

387

avahi.SERVER_COLLISION: "Zeroconf server name collision",

388

avahi.SERVER_FAILURE: "Zeroconf server failure",

389

}

365

390

if state in bad_states:

366

391

if bad_states[state] is not None:

367

392

if error is None:

386

411

follow_name_owner_changes=True),

387

412

avahi.DBUS_INTERFACE_SERVER)

388

413

self.server.connect_to_signal("StateChanged",

389

self.server_state_changed)

414

self.server_state_changed)

390

415

self.server_state_changed(self.server.GetState())

391

416

392

417

393

418

class AvahiServiceToSyslog(AvahiService):

394

def rename(self):

419

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

395

420

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

396

ret = AvahiService.rename(self)

397

syslogger.setFormatter(logging.Formatter

398

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

399

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

400

.format(self.name)))

421

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

422

syslogger.setFormatter(logging.Formatter(

423

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

424

.format(self.name)))

401

425

return ret

402

426

403

427

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

428

class Client(object):

412

429

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

413

430

457

474

"fingerprint", "host", "interval",

458

475

"last_approval_request", "last_checked_ok",

459

476

"last_enabled", "name", "timeout")

460

client_defaults = { "timeout": "PT5M",

461

"extended_timeout": "PT15M",

462

"interval": "PT2M",

463

"checker": "fping -q -- %%(host)s",

464

"host": "",

465

"approval_delay": "PT0S",

466

"approval_duration": "PT1S",

467

"approved_by_default": "True",

468

"enabled": "True",

469

}

470

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)

477

client_defaults = {

478

"timeout": "PT5M",

479

"extended_timeout": "PT15M",

480

"interval": "PT2M",

481

"checker": "fping -q -- %%(host)s",

482

"host": "",

483

"approval_delay": "PT0S",

484

"approval_duration": "PT1S",

485

"approved_by_default": "True",

486

"enabled": "True",

487

}

485

488

486

489

@staticmethod

487

490

def config_parser(config):

503

506

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

504

507

"enabled")

505

508

509

# Uppercase and remove spaces from fingerprint for later

510

# comparison purposes with return value from the

511

# fingerprint() function

506

512

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

507

513

.replace(" ", ""))

508

514

if "secret" in section:

513

519

"rb") as secfile:

514

520

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

515

521

else:

516

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

522

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

517

523

.format(section))

518

524

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

519

525

client["extended_timeout"] = string_to_delta(

536

542

server_settings = {}

537

543

self.server_settings = server_settings

538

544

# adding all client settings

539

for setting, value in settings.iteritems():

545

for setting, value in settings.items():

540

546

setattr(self, setting, value)

541

547

542

548

if self.enabled:

550

556

self.expires = None

551

557

552

558

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

559

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

557

560

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

558

561

datetime.datetime.utcnow())

565

568

self.current_checker_command = None

566

569

self.approved = None

567

570

self.approvals_pending = 0

568

self.changedstate = (multiprocessing_manager

569

.Condition(multiprocessing_manager

570

.Lock()))

571

self.client_structure = [attr for attr in

572

self.__dict__.iterkeys()

571

self.changedstate = multiprocessing_manager.Condition(

572

multiprocessing_manager.Lock())

573

self.client_structure = [attr

574

for attr in self.__dict__.iterkeys()

573

575

if not attr.startswith("_")]

574

576

self.client_structure.append("client_structure")

575

577

576

for name, t in inspect.getmembers(type(self),

577

lambda obj:

578

isinstance(obj,

579

property)):

578

for name, t in inspect.getmembers(

579

type(self), lambda obj: isinstance(obj, property)):

580

if not name.startswith("_"):

581

self.client_structure.append(name)

582

624

# and every interval from then on.

625

if self.checker_initiator_tag is not None:

626

gobject.source_remove(self.checker_initiator_tag)

627

self.checker_initiator_tag = (gobject.timeout_add

628

(self.interval_milliseconds(),

629

self.start_checker))

627

self.checker_initiator_tag = gobject.timeout_add(

628

int(self.interval.total_seconds() * 1000),

629

self.start_checker)

630

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

631

if self.disable_initiator_tag is not None:

632

gobject.source_remove(self.disable_initiator_tag)

633

self.disable_initiator_tag = (gobject.timeout_add

634

(self.timeout_milliseconds(),

635

self.disable))

633

self.disable_initiator_tag = gobject.timeout_add(

634

int(self.timeout.total_seconds() * 1000), self.disable)

636

635

# Also start a new checker *right now*.

637

636

self.start_checker()

638

637

647

646

vars(self))

648

647

self.checked_ok()

649

648

else:

650

logger.info("Checker for %(name)s failed",

651

vars(self))

649

logger.info("Checker for %(name)s failed", vars(self))

652

650

else:

653

651

self.last_checker_status = -1

654

652

logger.warning("Checker for %(name)s crashed?",

668

666

gobject.source_remove(self.disable_initiator_tag)

669

667

self.disable_initiator_tag = None

670

668

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

671

self.disable_initiator_tag = (gobject.timeout_add

672

(timedelta_to_milliseconds

673

(timeout), self.disable))

669

self.disable_initiator_tag = gobject.timeout_add(

670

int(timeout.total_seconds() * 1000), self.disable)

674

671

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

675

672

676

673

def need_approval(self):

707

704

# Start a new checker if needed

708

705

if self.checker is None:

709

706

# 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)

707

escaped_attrs = {

708

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

709

for attr in self.runtime_expansions }

714

710

try:

715

711

command = self.checker_command % escaped_attrs

716

712

except TypeError as error:

717

713

logger.error('Could not format string "%s"',

718

self.checker_command, exc_info=error)

719

return True # Try again later

714

self.checker_command,

715

exc_info=error)

716

return True # Try again later

720

717

self.current_checker_command = command

721

718

try:

722

logger.info("Starting checker %r for %s",

723

command, self.name)

719

logger.info("Starting checker %r for %s", command,

720

self.name)

724

721

# We don't need to redirect stdout and stderr, since

725

722

# in normal mode, that is already done by daemon(),

726

723

# and in debug mode we don't want to. (Stdin is

735

732

"stderr": wnull })

736

733

self.checker = subprocess.Popen(command,

737

734

close_fds=True,

738

shell=True, cwd="/",

735

shell=True,

736

cwd="/",

739

737

**popen_args)

740

738

except OSError as error:

741

739

logger.error("Failed to start subprocess",

742

740

exc_info=error)

743

741

return True

744

self.checker_callback_tag = (gobject.child_watch_add

745

(self.checker.pid,

746

self.checker_callback,

747

data=command))

742

self.checker_callback_tag = gobject.child_watch_add(

743

self.checker.pid, self.checker_callback, data=command)

748

744

# The checker may have completed before the gobject

749

745

# watch was added. Check for this.

750

746

try:

781

777

self.checker = None

782

778

783

779

784

def dbus_service_property(dbus_interface, signature="v",

785

access="readwrite", byte_arrays=False):

780

def dbus_service_property(dbus_interface,

781

signature="v",

782

access="readwrite",

783

byte_arrays=False):

786

784

"""Decorators for marking methods of a DBusObjectWithProperties to

787

785

become properties on the D-Bus.

788

786

797

795

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

798

796

if byte_arrays and signature != "ay":

799

797

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

800

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

798

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

799

801

800

def decorator(func):

802

801

func._dbus_is_property = True

803

802

func._dbus_interface = dbus_interface

808

807

func._dbus_name = func._dbus_name[:-14]

809

808

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

810

809

return func

810

811

return decorator

812

813

822

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

823

"false"}

824

"""

825

826

def decorator(func):

826

827

func._dbus_is_interface = True

827

828

func._dbus_interface = dbus_interface

828

829

func._dbus_name = dbus_interface

829

830

return func

831

830

832

return decorator

831

833

832

834

836

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

835

837

Usage:

836

838

839

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

840

"org.freedesktop.DBus.Property."

841

"EmitsChangedSignal": "false"})

837

842

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

838

843

access="r")

839

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

840

"org.freedesktop.DBus.Property."

841

"EmitsChangedSignal": "false"})

842

844

def Property_dbus_property(self):

843

845

return dbus.Boolean(False)

844

846

"""

847

845

848

def decorator(func):

846

849

func._dbus_annotations = annotations

847

850

return func

851

848

852

return decorator

849

853

850

854

851

855

class DBusPropertyException(dbus.exceptions.DBusException):

852

856

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

853

857

"""

854

def __unicode__(self):

855

return unicode(str(self))

858

pass

856

859

857

860

858

861

class DBusPropertyAccessException(DBusPropertyException):

882

885

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

883

886

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

884

887

"""

885

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

888

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

886

889

False)

887

890

888

891

def _get_all_dbus_things(self, thing):

889

892

"""Returns a generator of (name, attribute) pairs

890

893

"""

891

return ((getattr(athing.__get__(self), "_dbus_name",

892

name),

894

return ((getattr(athing.__get__(self), "_dbus_name", name),

893

895

athing.__get__(self))

894

896

for cls in self.__class__.__mro__

895

897

for name, athing in

896

inspect.getmembers(cls,

897

self._is_dbus_thing(thing)))

898

inspect.getmembers(cls, self._is_dbus_thing(thing)))

898

899

900

def _get_dbus_property(self, interface_name, property_name):

900

901

"""Returns a bound method if one exists which is a D-Bus

901

902

property with the specified name and interface.

902

903

"""

903

for cls in self.__class__.__mro__:

904

for name, value in (inspect.getmembers

905

(cls,

906

self._is_dbus_thing("property"))):

904

for cls in self.__class__.__mro__:

905

for name, value in inspect.getmembers(

906

cls, self._is_dbus_thing("property")):

907

if (value._dbus_name == property_name

908

and value._dbus_interface == interface_name):

909

return value.__get__(self)

910

911

# No such property

912

raise DBusPropertyNotFound(self.dbus_object_path + ":"

913

+ interface_name + "."

914

+ property_name)

912

raise DBusPropertyNotFound("{}:{}.{}".format(

913

self.dbus_object_path, interface_name, property_name))

915

914

916

@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",

915

@dbus.service.method(dbus.PROPERTIES_IFACE,

916

in_signature="ss",

917

out_signature="v")

918

def Get(self, interface_name, property_name):

919

"""Standard D-Bus property Get() method, see D-Bus standard.

938

# signatures other than "ay".

939

if prop._dbus_signature != "ay":

940

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

941

"'ay' signature {0!r}"

941

"'ay' signature {!r}"

942

.format(prop._dbus_signature))

943

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

944

for byte in value))

945

prop(value)

946

947

@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",

947

@dbus.service.method(dbus.PROPERTIES_IFACE,

948

in_signature="s",

948

949

out_signature="a{sv}")

949

950

def GetAll(self, interface_name):

950

951

"""Standard D-Bus property GetAll() method, see D-Bus

965

966

if not hasattr(value, "variant_level"):

966

967

properties[name] = value

967

968

continue

968

properties[name] = type(value)(value, variant_level=

969

value.variant_level+1)

969

properties[name] = type(value)(

970

value, variant_level = value.variant_level + 1)

970

971

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

971

972

973

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

974

def PropertiesChanged(self, interface_name, changed_properties,

975

invalidated_properties):

976

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

977

standard.

978

"""

979

pass

980

972

981

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

973

982

out_signature="s",

974

983

path_keyword='object_path',

982

991

connection)

983

992

try:

984

993

document = xml.dom.minidom.parseString(xmlstring)

994

985

995

def make_tag(document, name, prop):

986

996

e = document.createElement("property")

987

997

e.setAttribute("name", name)

988

998

e.setAttribute("type", prop._dbus_signature)

989

999

e.setAttribute("access", prop._dbus_access)

990

1000

return e

1001

991

1002

for if_tag in document.getElementsByTagName("interface"):

992

1003

# Add property tags

993

1004

for tag in (make_tag(document, name, prop)

1005

1016

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

1006

1017

and prop._dbus_interface

1007

1018

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

1008

annots.update(getattr

1009

(prop,

1010

"_dbus_annotations",

1011

{}))

1012

for name, value in annots.iteritems():

1019

annots.update(getattr(

1020

prop, "_dbus_annotations", {}))

1021

for name, value in annots.items():

1013

1022

ann_tag = document.createElement(

1014

1023

"annotation")

1015

1024

ann_tag.setAttribute("name", name)

1018

1027

# Add interface annotation tags

1019

1028

for annotation, value in dict(

1020

1029

itertools.chain.from_iterable(

1021

annotations().iteritems()

1022

for name, annotations in

1023

self._get_all_dbus_things("interface")

1030

annotations().items()

1031

for name, annotations

1032

in self._get_all_dbus_things("interface")

1024

1033

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

1025

)).iteritems():

1034

)).items():

1026

1035

ann_tag = document.createElement("annotation")

1027

1036

ann_tag.setAttribute("name", annotation)

1028

1037

ann_tag.setAttribute("value", value)

1055

1064

"""Convert a UTC datetime.datetime() to a D-Bus type."""

1056

1065

if dt is None:

1057

1066

return dbus.String("", variant_level = variant_level)

1058

return dbus.String(dt.isoformat(),

1059

variant_level=variant_level)

1067

return dbus.String(dt.isoformat(), variant_level=variant_level)

1060

1068

1061

1069

1062

1070

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1082

1090

(from DBusObjectWithProperties) and interfaces (from the

1083

1091

dbus_interface_annotations decorator).

1084

1092

"""

1093

1085

1094

def wrapper(cls):

1086

1095

for orig_interface_name, alt_interface_name in (

1087

alt_interface_names.iteritems()):

1096

alt_interface_names.items()):

1088

1097

attr = {}

1089

1098

interface_names = set()

1090

1099

# Go though all attributes of the class

1092

1101

# Ignore non-D-Bus attributes, and D-Bus attributes

1093

1102

# with the wrong interface name

1094

1103

if (not hasattr(attribute, "_dbus_interface")

1095

or not attribute._dbus_interface

1096

.startswith(orig_interface_name)):

1104

or not attribute._dbus_interface.startswith(

1105

orig_interface_name)):

1097

1106

continue

1098

1107

# Create an alternate D-Bus interface name based on

1099

1108

# the current name

1100

alt_interface = (attribute._dbus_interface

1101

.replace(orig_interface_name,

1102

alt_interface_name))

1109

alt_interface = attribute._dbus_interface.replace(

1110

orig_interface_name, alt_interface_name)

1103

1111

interface_names.add(alt_interface)

1104

1112

# Is this a D-Bus signal?

1105

1113

if getattr(attribute, "_dbus_is_signal", False):

1106

1114

# Extract the original non-method undecorated

1107

1115

# function by black magic

1108

1116

nonmethod_func = (dict(

1109

zip(attribute.func_code.co_freevars,

1110

attribute.__closure__))["func"]

1111

.cell_contents)

1117

zip(attribute.func_code.co_freevars,

1118

attribute.__closure__))

1119

["func"].cell_contents)

1112

1120

# Create a new, but exactly alike, function

1113

1121

# object, and decorate it to be a new D-Bus signal

1114

1122

# with the alternate D-Bus interface name

1115

new_function = (dbus.service.signal

1116

(alt_interface,

1117

attribute._dbus_signature)

1123

new_function = (dbus.service.signal(

1124

alt_interface, attribute._dbus_signature)

1118

1125

(types.FunctionType(

1119

nonmethod_func.func_code,

1120

nonmethod_func.func_globals,

1121

nonmethod_func.func_name,

1122

nonmethod_func.func_defaults,

1123

nonmethod_func.func_closure)))

1126

nonmethod_func.func_code,

1127

nonmethod_func.func_globals,

1128

nonmethod_func.func_name,

1129

nonmethod_func.func_defaults,

1130

nonmethod_func.func_closure)))

1124

1131

# Copy annotations, if any

1125

1132

try:

1126

new_function._dbus_annotations = (

1127

dict(attribute._dbus_annotations))

1133

new_function._dbus_annotations = dict(

1134

attribute._dbus_annotations)

1128

1135

except AttributeError:

1129

1136

pass

1130

1137

# Define a creator of a function to call both the

1135

1142

"""This function is a scope container to pass

1136

1143

func1 and func2 to the "call_both" function

1137

1144

outside of its arguments"""

1145

1138

1146

def call_both(*args, **kwargs):

1139

1147

"""This function will emit two D-Bus

1140

1148

signals by calling func1 and func2"""

1141

1149

func1(*args, **kwargs)

1142

1150

func2(*args, **kwargs)

1151

1143

1152

return call_both

1144

1153

# Create the "call_both" function and add it to

1145

1154

# the class

1150

1159

# object. Decorate it to be a new D-Bus method

1151

1160

# with the alternate D-Bus interface name. Add it

1152

1161

# to the class.

1153

attr[attrname] = (dbus.service.method

1154

(alt_interface,

1155

attribute._dbus_in_signature,

1156

attribute._dbus_out_signature)

1157

(types.FunctionType

1158

(attribute.func_code,

1159

attribute.func_globals,

1160

attribute.func_name,

1161

attribute.func_defaults,

1162

attribute.func_closure)))

1162

attr[attrname] = (

1163

dbus.service.method(

1164

alt_interface,

1165

attribute._dbus_in_signature,

1166

attribute._dbus_out_signature)

1167

(types.FunctionType(attribute.func_code,

1168

attribute.func_globals,

1169

attribute.func_name,

1170

attribute.func_defaults,

1171

attribute.func_closure)))

1163

1172

# Copy annotations, if any

1164

1173

try:

1165

attr[attrname]._dbus_annotations = (

1166

dict(attribute._dbus_annotations))

1174

attr[attrname]._dbus_annotations = dict(

1175

attribute._dbus_annotations)

1167

1176

except AttributeError:

1168

1177

pass

1169

1178

# Is this a D-Bus property?

1172

1181

# object, and decorate it to be a new D-Bus

1173

1182

# property with the alternate D-Bus interface

1174

1183

# name. Add it to the class.

1175

attr[attrname] = (dbus_service_property

1176

(alt_interface,

1177

attribute._dbus_signature,

1178

attribute._dbus_access,

1179

attribute

1180

._dbus_get_args_options

1181

["byte_arrays"])

1182

(types.FunctionType

1183

(attribute.func_code,

1184

attribute.func_globals,

1185

attribute.func_name,

1186

attribute.func_defaults,

1187

attribute.func_closure)))

1184

attr[attrname] = (dbus_service_property(

1185

alt_interface, attribute._dbus_signature,

1186

attribute._dbus_access,

1187

attribute._dbus_get_args_options

1188

["byte_arrays"])

1189

(types.FunctionType(

1190

attribute.func_code,

1191

attribute.func_globals,

1192

attribute.func_name,

1193

attribute.func_defaults,

1194

attribute.func_closure)))

1188

1195

# Copy annotations, if any

1189

1196

try:

1190

attr[attrname]._dbus_annotations = (

1191

dict(attribute._dbus_annotations))

1197

attr[attrname]._dbus_annotations = dict(

1198

attribute._dbus_annotations)

1192

1199

except AttributeError:

1193

1200

pass

1194

1201

# Is this a D-Bus interface?

1197

1204

# object. Decorate it to be a new D-Bus interface

1198

1205

# with the alternate D-Bus interface name. Add it

1199

1206

# to the class.

1200

attr[attrname] = (dbus_interface_annotations

1201

(alt_interface)

1202

(types.FunctionType

1203

(attribute.func_code,

1204

attribute.func_globals,

1205

attribute.func_name,

1206

attribute.func_defaults,

1207

attribute.func_closure)))

1207

attr[attrname] = (

1208

dbus_interface_annotations(alt_interface)

1209

(types.FunctionType(attribute.func_code,

1210

attribute.func_globals,

1211

attribute.func_name,

1212

attribute.func_defaults,

1213

attribute.func_closure)))

1208

1214

if deprecate:

1209

1215

# Deprecate all alternate interfaces

1210

iname="_AlternateDBusNames_interface_annotation{0}"

1216

iname="_AlternateDBusNames_interface_annotation{}"

1211

1217

for interface_name in interface_names:

1218

1212

1219

@dbus_interface_annotations(interface_name)

1213

1220

def func(self):

1214

1221

return { "org.freedesktop.DBus.Deprecated":

1215

"true" }

1222

"true" }

1216

1223

# Find an unused name

1217

1224

for aname in (iname.format(i)

1218

1225

for i in itertools.count()):

1222

1229

if interface_names:

1223

1230

# Replace the class with a new subclass of it with

1224

1231

# methods, signals, etc. as created above.

1225

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

1226

(cls,), attr)

1232

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

1233

(cls, ), attr)

1227

1234

return cls

1235

1228

1236

return wrapper

1229

1237

1230

1238

1231

1239

@alternate_dbus_interfaces({"se.recompile.Mandos":

1232

"se.bsnet.fukt.Mandos"})

1240

"se.bsnet.fukt.Mandos"})

1233

1241

class ClientDBus(Client, DBusObjectWithProperties):

1234

1242

"""A Client class using D-Bus

1235

1243

1239

1247

"""

1240

1248

1241

1249

runtime_expansions = (Client.runtime_expansions

1242

+ ("dbus_object_path",))

1250

+ ("dbus_object_path", ))

1251

1252

_interface = "se.recompile.Mandos.Client"

1243

1253

1244

1254

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

1245

1255

1248

1258

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

1249

1259

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

1250

1260

# the D-Bus

1251

client_object_name = unicode(self.name).translate(

1261

client_object_name = str(self.name).translate(

1252

1262

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

1253

1263

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

1254

self.dbus_object_path = (dbus.ObjectPath

1255

("/clients/" + client_object_name))

1264

self.dbus_object_path = dbus.ObjectPath(

1265

"/clients/" + client_object_name)

1256

1266

DBusObjectWithProperties.__init__(self, self.bus,

1257

1267

self.dbus_object_path)

1258

1268

1259

def notifychangeproperty(transform_func,

1260

dbus_name, type_func=lambda x: x,

1261

variant_level=1):

1269

def notifychangeproperty(transform_func, dbus_name,

1270

type_func=lambda x: x,

1271

variant_level=1,

1272

invalidate_only=False,

1273

_interface=_interface):

1262

1274

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

1263

1275

its changes to DBus.

1264

1276

1269

1281

to the D-Bus. Default: no transform

1270

1282

variant_level: D-Bus variant level. Default: 1

1271

1283

"""

1272

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

1284

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

1285

1273

1286

def setter(self, value):

1274

1287

if hasattr(self, "dbus_object_path"):

1275

1288

if (not hasattr(self, attrname) or

1276

1289

type_func(getattr(self, attrname, None))

1277

1290

!= 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)

1291

if invalidate_only:

1292

self.PropertiesChanged(

1293

_interface, dbus.Dictionary(),

1294

dbus.Array((dbus_name, )))

1295

else:

1296

dbus_value = transform_func(

1297

type_func(value),

1298

variant_level = variant_level)

1299

self.PropertyChanged(dbus.String(dbus_name),

1300

dbus_value)

1301

self.PropertiesChanged(

1302

_interface,

1303

dbus.Dictionary({ dbus.String(dbus_name):

1304

dbus_value }),

1305

dbus.Array())

1283

1306

setattr(self, attrname, value)

1284

1307

1285

1308

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

1291

1314

enabled = notifychangeproperty(dbus.Boolean, "Enabled")

1292

1315

last_enabled = notifychangeproperty(datetime_to_dbus,

1293

1316

"LastEnabled")

1294

checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",

1295

type_func = lambda checker:

1296

checker is not None)

1317

checker = notifychangeproperty(

1318

dbus.Boolean, "CheckerRunning",

1319

type_func = lambda checker: checker is not None)

1297

1320

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1298

1321

"LastCheckedOK")

1299

1322

last_checker_status = notifychangeproperty(dbus.Int16,

1302

1325

datetime_to_dbus, "LastApprovalRequest")

1303

1326

approved_by_default = notifychangeproperty(dbus.Boolean,

1304

1327

"ApprovedByDefault")

1305

approval_delay = notifychangeproperty(dbus.UInt64,

1306

"ApprovalDelay",

1307

type_func =

1308

timedelta_to_milliseconds)

1328

approval_delay = notifychangeproperty(

1329

dbus.UInt64, "ApprovalDelay",

1330

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

1309

1331

approval_duration = notifychangeproperty(

1310

1332

dbus.UInt64, "ApprovalDuration",

1311

type_func = timedelta_to_milliseconds)

1333

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

1312

1334

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

1313

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

1314

type_func =

1315

timedelta_to_milliseconds)

1335

timeout = notifychangeproperty(

1336

dbus.UInt64, "Timeout",

1337

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

1316

1338

extended_timeout = notifychangeproperty(

1317

1339

dbus.UInt64, "ExtendedTimeout",

1318

type_func = timedelta_to_milliseconds)

1319

interval = notifychangeproperty(dbus.UInt64,

1320

"Interval",

1321

type_func =

1322

timedelta_to_milliseconds)

1340

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

1341

interval = notifychangeproperty(

1342

dbus.UInt64, "Interval",

1343

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

1323

1344

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

1345

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

1346

invalidate_only=True)

1324

1347

1325

1348

del notifychangeproperty

1326

1349

1368

1391

1369

1392

def approve(self, value=True):

1370

1393

self.approved = value

1371

gobject.timeout_add(timedelta_to_milliseconds

1372

(self.approval_duration),

1373

self._reset_approved)

1394

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

1395

* 1000), self._reset_approved)

1374

1396

self.send_changedstate()

1375

1397

1376

1398

## D-Bus methods, signals & properties

1377

_interface = "se.recompile.Mandos.Client"

1378

1399

1379

1400

## Interfaces

1380

1401

1381

@dbus_interface_annotations(_interface)

1382

def _foo(self):

1383

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

1384

"false"}

1385

1386

1402

## Signals

1387

1403

1388

1404

# CheckerCompleted - signal

1398

1414

pass

1399

1415

1400

1416

# PropertyChanged - signal

1417

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

1401

1418

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

1402

1419

def PropertyChanged(self, property, value):

1403

1420

"D-Bus signal"

1467

1484

return dbus.Boolean(bool(self.approvals_pending))

1468

1485

1469

1486

# ApprovedByDefault - property

1470

@dbus_service_property(_interface, signature="b",

1487

@dbus_service_property(_interface,

1488

signature="b",

1471

1489

access="readwrite")

1472

1490

def ApprovedByDefault_dbus_property(self, value=None):

1473

1491

if value is None: # get

1475

1493

self.approved_by_default = bool(value)

1476

1494

1477

1495

# ApprovalDelay - property

1478

@dbus_service_property(_interface, signature="t",

1496

@dbus_service_property(_interface,

1497

signature="t",

1479

1498

access="readwrite")

1480

1499

def ApprovalDelay_dbus_property(self, value=None):

1481

1500

if value is None: # get

1482

return dbus.UInt64(self.approval_delay_milliseconds())

1501

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

1502

* 1000)

1483

1503

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

1484

1504

1485

1505

# ApprovalDuration - property

1486

@dbus_service_property(_interface, signature="t",

1506

@dbus_service_property(_interface,

1507

signature="t",

1487

1508

access="readwrite")

1488

1509

def ApprovalDuration_dbus_property(self, value=None):

1489

1510

if value is None: # get

1490

return dbus.UInt64(timedelta_to_milliseconds(

1491

self.approval_duration))

1511

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

1512

* 1000)

1492

1513

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

1493

1514

1494

1515

# Name - property

1502

1523

return dbus.String(self.fingerprint)

1503

1524

1504

1525

# Host - property

1505

@dbus_service_property(_interface, signature="s",

1526

@dbus_service_property(_interface,

1527

signature="s",

1506

1528

access="readwrite")

1507

1529

def Host_dbus_property(self, value=None):

1508

1530

if value is None: # get

1509

1531

return dbus.String(self.host)

1510

self.host = unicode(value)

1532

self.host = str(value)

1511

1533

1512

1534

# Created - property

1513

1535

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

1520

1542

return datetime_to_dbus(self.last_enabled)

1521

1543

1522

1544

# Enabled - property

1523

@dbus_service_property(_interface, signature="b",

1545

@dbus_service_property(_interface,

1546

signature="b",

1524

1547

access="readwrite")

1525

1548

def Enabled_dbus_property(self, value=None):

1526

1549

if value is None: # get

1531

1554

self.disable()

1532

1555

1533

1556

# LastCheckedOK - property

1534

@dbus_service_property(_interface, signature="s",

1557

@dbus_service_property(_interface,

1558

signature="s",

1535

1559

access="readwrite")

1536

1560

def LastCheckedOK_dbus_property(self, value=None):

1537

1561

if value is not None:

1540

1564

return datetime_to_dbus(self.last_checked_ok)

1541

1565

1542

1566

# LastCheckerStatus - property

1543

@dbus_service_property(_interface, signature="n",

1544

access="read")

1567

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

1545

1568

def LastCheckerStatus_dbus_property(self):

1546

1569

return dbus.Int16(self.last_checker_status)

1547

1570

1556

1579

return datetime_to_dbus(self.last_approval_request)

1557

1580

1558

1581

# Timeout - property

1559

@dbus_service_property(_interface, signature="t",

1582

@dbus_service_property(_interface,

1583

signature="t",

1560

1584

access="readwrite")

1561

1585

def Timeout_dbus_property(self, value=None):

1562

1586

if value is None: # get

1563

return dbus.UInt64(self.timeout_milliseconds())

1587

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

1564

1588

old_timeout = self.timeout

1565

1589

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

1566

1590

# Reschedule disabling

1575

1599

is None):

1576

1600

return

1577

1601

gobject.source_remove(self.disable_initiator_tag)

1578

self.disable_initiator_tag = (

1579

gobject.timeout_add(

1580

timedelta_to_milliseconds(self.expires - now),

1581

self.disable))

1602

self.disable_initiator_tag = gobject.timeout_add(

1603

int((self.expires - now).total_seconds() * 1000),

1604

self.disable)

1582

1605

1583

1606

# ExtendedTimeout - property

1584

@dbus_service_property(_interface, signature="t",

1607

@dbus_service_property(_interface,

1608

signature="t",

1585

1609

access="readwrite")

1586

1610

def ExtendedTimeout_dbus_property(self, value=None):

1587

1611

if value is None: # get

1588

return dbus.UInt64(self.extended_timeout_milliseconds())

1612

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

1613

* 1000)

1589

1614

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

1590

1615

1591

1616

# Interval - property

1592

@dbus_service_property(_interface, signature="t",

1617

@dbus_service_property(_interface,

1618

signature="t",

1593

1619

access="readwrite")

1594

1620

def Interval_dbus_property(self, value=None):

1595

1621

if value is None: # get

1596

return dbus.UInt64(self.interval_milliseconds())

1622

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

1597

1623

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

1598

1624

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

1599

1625

return

1600

1626

if self.enabled:

1601

1627

# Reschedule checker run

1602

1628

gobject.source_remove(self.checker_initiator_tag)

1603

self.checker_initiator_tag = (gobject.timeout_add

1604

(value, self.start_checker))

1605

self.start_checker() # Start one now, too

1629

self.checker_initiator_tag = gobject.timeout_add(

1630

value, self.start_checker)

1631

self.start_checker() # Start one now, too

1606

1632

1607

1633

# Checker - property

1608

@dbus_service_property(_interface, signature="s",

1634

@dbus_service_property(_interface,

1635

signature="s",

1609

1636

access="readwrite")

1610

1637

def Checker_dbus_property(self, value=None):

1611

1638

if value is None: # get

1612

1639

return dbus.String(self.checker_command)

1613

self.checker_command = unicode(value)

1640

self.checker_command = str(value)

1614

1641

1615

1642

# CheckerRunning - property

1616

@dbus_service_property(_interface, signature="b",

1643

@dbus_service_property(_interface,

1644

signature="b",

1617

1645

access="readwrite")

1618

1646

def CheckerRunning_dbus_property(self, value=None):

1619

1647

if value is None: # get

1629

1657

return self.dbus_object_path # is already a dbus.ObjectPath

1630

1658

1631

1659

# Secret = property

1632

@dbus_service_property(_interface, signature="ay",

1633

access="write", byte_arrays=True)

1660

@dbus_service_property(_interface,

1661

signature="ay",

1662

access="write",

1663

byte_arrays=True)

1634

1664

def Secret_dbus_property(self, value):

1635

self.secret = str(value)

1665

self.secret = bytes(value)

1636

1666

1637

1667

del _interface

1638

1668

1642

1672

self._pipe = child_pipe

1643

1673

self._pipe.send(('init', fpr, address))

1644

1674

if not self._pipe.recv():

1645

raise KeyError()

1675

raise KeyError(fpr)

1646

1676

1647

1677

def __getattribute__(self, name):

1648

1678

if name == '_pipe':

1652

1682

if data[0] == 'data':

1653

1683

return data[1]

1654

1684

if data[0] == 'function':

1685

1655

1686

def func(*args, **kwargs):

1656

1687

self._pipe.send(('funcall', name, args, kwargs))

1657

1688

return self._pipe.recv()[1]

1689

1658

1690

return func

1659

1691

1660

1692

def __setattr__(self, name, value):

1672

1704

def handle(self):

1673

1705

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

1674

1706

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

1675

unicode(self.client_address))

1707

str(self.client_address))

1676

1708

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

1677

1709

self.server.child_pipe.fileno())

1678

1710

1679

session = (gnutls.connection

1680

.ClientSession(self.request,

1681

gnutls.connection

1682

.X509Credentials()))

1711

session = gnutls.connection.ClientSession(

1712

self.request, gnutls.connection .X509Credentials())

1683

1713

1684

1714

# Note: gnutls.connection.X509Credentials is really a

1685

1715

# generic GnuTLS certificate credentials object so long as

1694

1724

priority = self.server.gnutls_priority

1695

1725

if priority is None:

1696

1726

priority = "NORMAL"

1697

(gnutls.library.functions

1698

.gnutls_priority_set_direct(session._c_object,

1699

priority, None))

1727

gnutls.library.functions.gnutls_priority_set_direct(

1728

session._c_object, priority, None)

1700

1729

1701

1730

# Start communication using the Mandos protocol

1702

1731

# Get protocol number

1722

1751

approval_required = False

1723

1752

try:

1724

1753

try:

1725

fpr = self.fingerprint(self.peer_certificate

1726

(session))

1754

fpr = self.fingerprint(

1755

self.peer_certificate(session))

1727

1756

except (TypeError,

1728

1757

gnutls.errors.GNUTLSError) as error:

1729

1758

logger.warning("Bad certificate: %s", error)

1744

1773

while True:

1745

1774

if not client.enabled:

1746

1775

logger.info("Client %s is disabled",

1747

client.name)

1776

client.name)

1748

1777

if self.server.use_dbus:

1749

1778

# Emit D-Bus signal

1750

1779

client.Rejected("Disabled")

1759

1788

if self.server.use_dbus:

1760

1789

# Emit D-Bus signal

1761

1790

client.NeedApproval(

1762

client.approval_delay_milliseconds(),

1763

client.approved_by_default)

1791

client.approval_delay.total_seconds()

1792

* 1000, client.approved_by_default)

1764

1793

else:

1765

1794

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

1766

1795

client.name)

1772

1801

#wait until timeout or approved

1773

1802

time = datetime.datetime.now()

1774

1803

client.changedstate.acquire()

1775

client.changedstate.wait(

1776

float(timedelta_to_milliseconds(delay)

1777

/ 1000))

1804

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

1778

1805

client.changedstate.release()

1779

1806

time2 = datetime.datetime.now()

1780

1807

if (time2 - time) >= delay:

1799

1826

logger.warning("gnutls send failed",

1800

1827

exc_info=error)

1801

1828

return

1802

logger.debug("Sent: %d, remaining: %d",

1803

sent, len(client.secret)

1804

- (sent_size + sent))

1829

logger.debug("Sent: %d, remaining: %d", sent,

1830

len(client.secret) - (sent_size

1831

+ sent))

1805

1832

sent_size += sent

1806

1833

1807

1834

logger.info("Sending secret to %s", client.name)

1824

1851

def peer_certificate(session):

1825

1852

"Return the peer's OpenPGP certificate as a bytestring"

1826

1853

# If not an OpenPGP certificate...

1827

if (gnutls.library.functions

1828

.gnutls_certificate_type_get(session._c_object)

1854

if (gnutls.library.functions.gnutls_certificate_type_get(

1855

session._c_object)

1829

1856

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1830

1857

# ...do the normal thing

1831

1858

return session.peer_certificate

1845

1872

def fingerprint(openpgp):

1846

1873

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

1847

1874

# New GnuTLS "datum" with the OpenPGP public key

1848

datum = (gnutls.library.types

1849

.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),

1850

ctypes.POINTER

1851

(ctypes.c_ubyte)),

1852

ctypes.c_uint(len(openpgp))))

1875

datum = gnutls.library.types.gnutls_datum_t(

1876

ctypes.cast(ctypes.c_char_p(openpgp),

1877

ctypes.POINTER(ctypes.c_ubyte)),

1878

ctypes.c_uint(len(openpgp)))

1853

1879

# New empty GnuTLS certificate

1854

1880

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1855

(gnutls.library.functions

1856

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

1881

gnutls.library.functions.gnutls_openpgp_crt_init(

1882

ctypes.byref(crt))

1857

1883

# Import the OpenPGP public key into the certificate

1858

(gnutls.library.functions

1859

.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),

1860

gnutls.library.constants

1861

.GNUTLS_OPENPGP_FMT_RAW))

1884

gnutls.library.functions.gnutls_openpgp_crt_import(

1885

crt, ctypes.byref(datum),

1886

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

1862

1887

# Verify the self signature in the key

1863

1888

crtverify = ctypes.c_uint()

1864

(gnutls.library.functions

1865

.gnutls_openpgp_crt_verify_self(crt, 0,

1866

ctypes.byref(crtverify)))

1889

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

1890

crt, 0, ctypes.byref(crtverify))

1867

1891

if crtverify.value != 0:

1868

1892

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1869

raise (gnutls.errors.CertificateSecurityError

1870

("Verify failed"))

1893

raise gnutls.errors.CertificateSecurityError(

1894

"Verify failed")

1871

1895

# New buffer for the fingerprint

1872

1896

buf = ctypes.create_string_buffer(20)

1873

1897

buf_len = ctypes.c_size_t()

1874

1898

# Get the fingerprint from the certificate into the buffer

1875

(gnutls.library.functions

1876

.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),

1877

ctypes.byref(buf_len)))

1899

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

1900

crt, ctypes.byref(buf), ctypes.byref(buf_len))

1878

1901

# Deinit the certificate

1879

1902

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1880

1903

# Convert the buffer to a Python bytestring

1886

1909

1887

1910

class MultiprocessingMixIn(object):

1888

1911

"""Like socketserver.ThreadingMixIn, but with multiprocessing"""

1912

1889

1913

def sub_process_main(self, request, address):

1890

1914

try:

1891

1915

self.finish_request(request, address)

1903

1927

1904

1928

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1905

1929

""" adds a pipe to the MixIn """

1930

1906

1931

def process_request(self, request, client_address):

1907

1932

"""Overrides and wraps the original process_request().

1908

1933

1929

1954

interface: None or a network interface name (string)

1930

1955

use_ipv6: Boolean; to use IPv6 or not

1931

1956

"""

1957

1932

1958

def __init__(self, server_address, RequestHandlerClass,

1933

interface=None, use_ipv6=True, socketfd=None):

1959

interface=None,

1960

use_ipv6=True,

1961

socketfd=None):

1934

1962

"""If socketfd is set, use that file descriptor instead of

1935

1963

creating a new one with socket.socket().

1936

1964

"""

1977

2005

self.interface)

1978

2006

else:

1979

2007

try:

1980

self.socket.setsockopt(socket.SOL_SOCKET,

1981

SO_BINDTODEVICE,

1982

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

2008

self.socket.setsockopt(

2009

socket.SOL_SOCKET, SO_BINDTODEVICE,

2010

(self.interface + "\0").encode("utf-8"))

1983

2011

except socket.error as error:

1984

2012

if error.errno == errno.EPERM:

1985

2013

logger.error("No permission to bind to"

2003

2031

self.server_address = (any_address,

2004

2032

self.server_address[1])

2005

2033

elif not self.server_address[1]:

2006

self.server_address = (self.server_address[0],

2007

0)

2034

self.server_address = (self.server_address[0], 0)

2008

2035

# if self.interface:

2009

2036

# self.server_address = (self.server_address[0],

2010

2037

# 0, # port

2024

2051

2025

2052

Assumes a gobject.MainLoop event loop.

2026

2053

"""

2054

2027

2055

def __init__(self, server_address, RequestHandlerClass,

2028

interface=None, use_ipv6=True, clients=None,

2029

gnutls_priority=None, use_dbus=True, socketfd=None):

2056

interface=None,

2057

use_ipv6=True,

2058

clients=None,

2059

gnutls_priority=None,

2060

use_dbus=True,

2061

socketfd=None):

2030

2062

self.enabled = False

2031

2063

self.clients = clients

2032

2064

if self.clients is None:

2038

2070

interface = interface,

2039

2071

use_ipv6 = use_ipv6,

2040

2072

socketfd = socketfd)

2073

2041

2074

def server_activate(self):

2042

2075

if self.enabled:

2043

2076

return socketserver.TCPServer.server_activate(self)

2047

2080

2048

2081

def add_pipe(self, parent_pipe, proc):

2049

2082

# Call "handle_ipc" for both data and EOF events

2050

gobject.io_add_watch(parent_pipe.fileno(),

2051

gobject.IO_IN | gobject.IO_HUP,

2052

functools.partial(self.handle_ipc,

2053

parent_pipe =

2054

parent_pipe,

2055

proc = proc))

2083

gobject.io_add_watch(

2084

parent_pipe.fileno(),

2085

gobject.IO_IN | gobject.IO_HUP,

2086

functools.partial(self.handle_ipc,

2087

parent_pipe = parent_pipe,

2088

proc = proc))

2056

2089

2057

def handle_ipc(self, source, condition, parent_pipe=None,

2058

proc = None, client_object=None):

2090

def handle_ipc(self, source, condition,

2091

parent_pipe=None,

2092

proc = None,

2093

client_object=None):

2059

2094

# error, or the other end of multiprocessing.Pipe has closed

2060

2095

if condition & (gobject.IO_ERR | gobject.IO_HUP):

2061

2096

# Wait for other process to exit

2084

2119

parent_pipe.send(False)

2085

2120

return False

2086

2121

2087

gobject.io_add_watch(parent_pipe.fileno(),

2088

gobject.IO_IN | gobject.IO_HUP,

2089

functools.partial(self.handle_ipc,

2090

parent_pipe =

2091

parent_pipe,

2092

proc = proc,

2093

client_object =

2094

client))

2122

gobject.io_add_watch(

2123

parent_pipe.fileno(),

2124

gobject.IO_IN | gobject.IO_HUP,

2125

functools.partial(self.handle_ipc,

2126

parent_pipe = parent_pipe,

2127

proc = proc,

2128

client_object = client))

2095

2129

parent_pipe.send(True)

2096

2130

# remove the old hook in favor of the new above hook on

2097

2131

# same fileno

2103

2137

2104

2138

parent_pipe.send(('data', getattr(client_object,

2105

2139

funcname)(*args,

2106

**kwargs)))

2140

**kwargs)))

2107

2141

2108

2142

if command == 'getattr':

2109

2143

attrname = request[1]

2110

2144

if callable(client_object.__getattribute__(attrname)):

2111

parent_pipe.send(('function',))

2145

parent_pipe.send(('function', ))

2112

2146

else:

2113

parent_pipe.send(('data', client_object

2114

.__getattribute__(attrname)))

2147

parent_pipe.send((

2148

'data', client_object.__getattribute__(attrname)))

2115

2149

2116

2150

if command == 'setattr':

2117

2151

attrname = request[1]

2157

2191

# None

2158

2192

"followers")) # Tokens valid after

2159

2193

# this token

2194

Token = collections.namedtuple("Token", (

2195

"regexp", # To match token; if "value" is not None, must have

2196

# a "group" containing digits

2197

"value", # datetime.timedelta or None

2198

"followers")) # Tokens valid after this token

2160

2199

# RFC 3339 "duration" tokens, syntax, and semantics; taken from

2161

2200

# the "duration" ABNF definition in RFC 3339, Appendix A.

2162

2201

token_end = Token(re.compile(r"$"), None, frozenset())

2163

2202

token_second = Token(re.compile(r"(\d+)S"),

2164

2203

datetime.timedelta(seconds=1),

2165

frozenset((token_end,)))

2204

frozenset((token_end, )))

2166

2205

token_minute = Token(re.compile(r"(\d+)M"),

2167

2206

datetime.timedelta(minutes=1),

2168

2207

frozenset((token_second, token_end)))

2184

2223

frozenset((token_month, token_end)))

2185

2224

token_week = Token(re.compile(r"(\d+)W"),

2186

2225

datetime.timedelta(weeks=1),

2187

frozenset((token_end,)))

2226

frozenset((token_end, )))

2188

2227

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

2189

2228

frozenset((token_year, token_month,

2190

2229

token_day, token_time,

2191

token_week))),

2230

token_week)))

2192

2231

# Define starting values

2193

2232

value = datetime.timedelta() # Value so far

2194

2233

found_token = None

2195

followers = frozenset(token_duration,) # Following valid tokens

2234

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

2196

2235

s = duration # String left to parse

2197

2236

# Loop until end token is found

2198

2237

while found_token is not token_end:

2215

2254

break

2216

2255

else:

2217

2256

# No currently valid tokens were found

2218

raise ValueError("Invalid RFC 3339 duration")

2257

raise ValueError("Invalid RFC 3339 duration: {!r}"

2258

.format(duration))

2219

2259

# End token found

2220

2260

return value

2221

2261

2245

2285

timevalue = datetime.timedelta(0)

2246

2286

for s in interval.split():

2247

2287

try:

2248

suffix = unicode(s[-1])

2288

suffix = s[-1]

2249

2289

value = int(s[:-1])

2250

2290

if suffix == "d":

2251

2291

delta = datetime.timedelta(value)

2258

2298

elif suffix == "w":

2259

2299

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

2260

2300

else:

2261

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

2262

.format(suffix))

2301

raise ValueError("Unknown suffix {!r}".format(suffix))

2263

2302

except IndexError as e:

2264

2303

raise ValueError(*(e.args))

2265

2304

timevalue += delta

2282

2321

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

2283

2322

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

2284

2323

raise OSError(errno.ENODEV,

2285

"{0} not a character device"

2324

"{} not a character device"

2286

2325

.format(os.devnull))

2287

2326

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

2288

2327

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

2298

2337

2299

2338

parser = argparse.ArgumentParser()

2300

2339

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

2301

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

2340

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

2302

2341

help="show version number and exit")

2303

2342

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

2304

2343

help="Bind to interface IF")

2337

2376

help="Directory to save/restore state in")

2338

2377

parser.add_argument("--foreground", action="store_true",

2339

2378

help="Run in foreground", default=None)

2379

parser.add_argument("--no-zeroconf", action="store_false",

2380

dest="zeroconf", help="Do not use Zeroconf",

2381

default=None)

2340

2382

2341

2383

options = parser.parse_args()

2342

2384

2351

2393

"port": "",

2352

2394

"debug": "False",

2353

2395

"priority":

2354

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

2396

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

2397

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

2355

2398

"servicename": "Mandos",

2356

2399

"use_dbus": "True",

2357

2400

"use_ipv6": "True",

2360

2403

"socket": "",

2361

2404

"statedir": "/var/lib/mandos",

2362

2405

"foreground": "False",

2363

}

2406

"zeroconf": "True",

2407

}

2364

2408

2365

2409

# Parse config file for server-global settings

2366

2410

server_config = configparser.SafeConfigParser(server_defaults)

2367

2411

del server_defaults

2368

server_config.read(os.path.join(options.configdir,

2369

"mandos.conf"))

2412

server_config.read(os.path.join(options.configdir, "mandos.conf"))

2370

2413

# Convert the SafeConfigParser object to a dict

2371

2414

server_settings = server_config.defaults()

2372

2415

# Use the appropriate methods on the non-string config options

2390

2433

# Override the settings from the config file with command line

2391

2434

# options, if set.

2392

2435

for option in ("interface", "address", "port", "debug",

2393

"priority", "servicename", "configdir",

2394

"use_dbus", "use_ipv6", "debuglevel", "restore",

2395

"statedir", "socket", "foreground"):

2436

"priority", "servicename", "configdir", "use_dbus",

2437

"use_ipv6", "debuglevel", "restore", "statedir",

2438

"socket", "foreground", "zeroconf"):

2396

2439

value = getattr(options, option)

2397

2440

if value is not None:

2398

2441

server_settings[option] = value

2399

2442

del options

2400

2443

# Force all strings to be unicode

2401

2444

for option in server_settings.keys():

2402

if type(server_settings[option]) is str:

2403

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

2445

if isinstance(server_settings[option], bytes):

2446

server_settings[option] = (server_settings[option]

2447

.decode("utf-8"))

2404

2448

# Force all boolean options to be boolean

2405

2449

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

2406

"foreground"):

2450

"foreground", "zeroconf"):

2407

2451

server_settings[option] = bool(server_settings[option])

2408

2452

# Debug implies foreground

2409

2453

if server_settings["debug"]:

2412

2456

2413

2457

##################################################################

2414

2458

2459

if (not server_settings["zeroconf"]

2460

and not (server_settings["port"]

2461

or server_settings["socket"] != "")):

2462

parser.error("Needs port or socket to work without Zeroconf")

2463

2415

2464

# For convenience

2416

2465

debug = server_settings["debug"]

2417

2466

debuglevel = server_settings["debuglevel"]

2420

2469

stored_state_path = os.path.join(server_settings["statedir"],

2421

2470

stored_state_file)

2422

2471

foreground = server_settings["foreground"]

2472

zeroconf = server_settings["zeroconf"]

2423

2473

2424

2474

if debug:

2425

2475

initlogger(debug, logging.DEBUG)

2431

2481

initlogger(debug, level)

2432

2482

2433

2483

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

2434

syslogger.setFormatter(logging.Formatter

2435

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

2436

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

2437

.format(server_settings

2438

["servicename"])))

2484

syslogger.setFormatter(

2485

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

2486

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

2487

server_settings["servicename"])))

2439

2488

2440

2489

# Parse config file with clients

2441

2490

client_config = configparser.SafeConfigParser(Client

2446

2495

global mandos_dbus_service

2447

2496

mandos_dbus_service = None

2448

2497

2449

tcp_server = MandosServer((server_settings["address"],

2450

server_settings["port"]),

2451

ClientHandler,

2452

interface=(server_settings["interface"]

2453

or None),

2454

use_ipv6=use_ipv6,

2455

gnutls_priority=

2456

server_settings["priority"],

2457

use_dbus=use_dbus,

2458

socketfd=(server_settings["socket"]

2459

or None))

2498

socketfd = None

2499

if server_settings["socket"] != "":

2500

socketfd = server_settings["socket"]

2501

tcp_server = MandosServer(

2502

(server_settings["address"], server_settings["port"]),

2503

ClientHandler,

2504

interface=(server_settings["interface"] or None),

2505

use_ipv6=use_ipv6,

2506

gnutls_priority=server_settings["priority"],

2507

use_dbus=use_dbus,

2508

socketfd=socketfd)

2460

2509

if not foreground:

2461

2510

pidfilename = "/run/mandos.pid"

2462

2511

if not os.path.isdir("/run/."):

2463

2512

pidfilename = "/var/run/mandos.pid"

2464

2513

pidfile = None

2465

2514

try:

2466

pidfile = open(pidfilename, "w")

2515

pidfile = codecs.open(pidfilename, "w", encoding="utf-8")

2467

2516

except IOError as e:

2468

2517

logger.error("Could not open file %r", pidfilename,

2469

2518

exc_info=e)

2496

2545

def debug_gnutls(level, string):

2497

2546

logger.debug("GnuTLS: %s", string[:-1])

2498

2547

2499

(gnutls.library.functions

2500

.gnutls_global_set_log_function(debug_gnutls))

2548

gnutls.library.functions.gnutls_global_set_log_function(

2549

debug_gnutls)

2501

2550

2502

2551

# Redirect stdin so all checkers get /dev/null

2503

2552

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

2523

2572

if use_dbus:

2524

2573

try:

2525

2574

bus_name = dbus.service.BusName("se.recompile.Mandos",

2526

bus, do_not_queue=True)

2527

old_bus_name = (dbus.service.BusName

2528

("se.bsnet.fukt.Mandos", bus,

2529

do_not_queue=True))

2530

except dbus.exceptions.NameExistsException as e:

2575

bus,

2576

do_not_queue=True)

2577

old_bus_name = dbus.service.BusName(

2578

"se.bsnet.fukt.Mandos", bus,

2579

do_not_queue=True)

2580

except dbus.exceptions.DBusException as e:

2531

2581

logger.error("Disabling D-Bus:", exc_info=e)

2532

2582

use_dbus = False

2533

2583

server_settings["use_dbus"] = False

2534

2584

tcp_server.use_dbus = False

2535

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2536

service = AvahiServiceToSyslog(name =

2537

server_settings["servicename"],

2538

servicetype = "_mandos._tcp",

2539

protocol = protocol, bus = bus)

2540

if server_settings["interface"]:

2541

service.interface = (if_nametoindex

2542

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

2585

if zeroconf:

2586

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2587

service = AvahiServiceToSyslog(

2588

name = server_settings["servicename"],

2589

servicetype = "_mandos._tcp",

2590

protocol = protocol,

2591

bus = bus)

2592

if server_settings["interface"]:

2593

service.interface = if_nametoindex(

2594

server_settings["interface"].encode("utf-8"))

2543

2595

2544

2596

global multiprocessing_manager

2545

2597

multiprocessing_manager = multiprocessing.Manager()

2564

2616

if server_settings["restore"]:

2565

2617

try:

2566

2618

with open(stored_state_path, "rb") as stored_state:

2567

clients_data, old_client_settings = (pickle.load

2568

(stored_state))

2619

clients_data, old_client_settings = pickle.load(

2620

stored_state)

2569

2621

os.remove(stored_state_path)

2570

2622

except IOError as e:

2571

2623

if e.errno == errno.ENOENT:

2572

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

2573

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

2624

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

2625

" {}".format(os.strerror(e.errno)))

2574

2626

else:

2575

2627

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

2576

2628

exc_info=e)

2577

2629

raise

2578

2630

except EOFError as e:

2579

2631

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

2580

"EOFError:", exc_info=e)

2632

"EOFError:",

2633

exc_info=e)

2581

2634

2582

2635

with PGPEngine() as pgp:

2583

for client_name, client in clients_data.iteritems():

2636

for client_name, client in clients_data.items():

2584

2637

# Skip removed clients

2585

2638

if client_name not in client_settings:

2586

2639

continue

2595

2648

# For each value in new config, check if it

2596

2649

# differs from the old config value (Except for

2597

2650

# the "secret" attribute)

2598

if (name != "secret" and

2599

value != old_client_settings[client_name]

2600

[name]):

2651

if (name != "secret"

2652

and (value !=

2653

old_client_settings[client_name][name])):

2601

2654

client[name] = value

2602

2655

except KeyError:

2603

2656

pass

2611

2664

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

2612

2665

if not client["last_checked_ok"]:

2613

2666

logger.warning(

2614

"disabling client {0} - Client never "

2615

"performed a successful checker"

2616

.format(client_name))

2667

"disabling client {} - Client never "

2668

"performed a successful checker".format(

2669

client_name))

2617

2670

client["enabled"] = False

2618

2671

elif client["last_checker_status"] != 0:

2619

2672

logger.warning(

2620

"disabling client {0} - Client "

2621

"last checker failed with error code {1}"

2622

.format(client_name,

2623

client["last_checker_status"]))

2673

"disabling client {} - Client last"

2674

" checker failed with error code"

2675

" {}".format(

2676

client_name,

2677

client["last_checker_status"]))

2624

2678

client["enabled"] = False

2625

2679

else:

2626

client["expires"] = (datetime.datetime

2627

.utcnow()

2628

+ client["timeout"])

2680

client["expires"] = (

2681

datetime.datetime.utcnow()

2682

+ client["timeout"])

2629

2683

logger.debug("Last checker succeeded,"

2630

" keeping {0} enabled"

2631

.format(client_name))

2684

" keeping {} enabled".format(

2685

client_name))

2632

2686

try:

2633

client["secret"] = (

2634

pgp.decrypt(client["encrypted_secret"],

2635

client_settings[client_name]

2636

["secret"]))

2687

client["secret"] = pgp.decrypt(

2688

client["encrypted_secret"],

2689

client_settings[client_name]["secret"])

2637

2690

except PGPError:

2638

2691

# If decryption fails, we use secret from new settings

2639

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

2640

.format(client_name))

2641

client["secret"] = (

2642

client_settings[client_name]["secret"])

2692

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

2693

client_name))

2694

client["secret"] = (client_settings[client_name]

2695

["secret"])

2643

2696

2644

2697

# Add/remove clients based on new changes made to config

2645

2698

for client_name in (set(old_client_settings)

2650

2703

clients_data[client_name] = client_settings[client_name]

2651

2704

2652

2705

# Create all client objects

2653

for client_name, client in clients_data.iteritems():

2706

for client_name, client in clients_data.items():

2654

2707

tcp_server.clients[client_name] = client_class(

2655

name = client_name, settings = client,

2708

name = client_name,

2709

settings = client,

2656

2710

server_settings = server_settings)

2657

2711

2658

2712

if not tcp_server.clients:

2660

2714

2661

2715

if not foreground:

2662

2716

if pidfile is not None:

2717

pid = os.getpid()

2663

2718

try:

2664

2719

with pidfile:

2665

pid = os.getpid()

2666

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

2720

print(pid, file=pidfile)

2667

2721

except IOError:

2668

2722

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

2669

2723

pidfilename, pid)

2674

2728

signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())

2675

2729

2676

2730

if use_dbus:

2677

@alternate_dbus_interfaces({"se.recompile.Mandos":

2678

"se.bsnet.fukt.Mandos"})

2731

2732

@alternate_dbus_interfaces(

2733

{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })

2679

2734

class MandosDBusService(DBusObjectWithProperties):

2680

2735

"""A D-Bus proxy object"""

2736

2681

2737

def __init__(self):

2682

2738

dbus.service.Object.__init__(self, bus, "/")

2739

2683

2740

_interface = "se.recompile.Mandos"

2684

2741

2685

2742

@dbus_interface_annotations(_interface)

2686

2743

def _foo(self):

2687

return { "org.freedesktop.DBus.Property"

2688

".EmitsChangedSignal":

2689

"false"}

2744

return {

2745

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

2746

"false" }

2690

2747

2691

2748

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

2692

2749

def ClientAdded(self, objpath):

2706

2763

@dbus.service.method(_interface, out_signature="ao")

2707

2764

def GetAllClients(self):

2708

2765

"D-Bus method"

2709

return dbus.Array(c.dbus_object_path

2710

for c in

2766

return dbus.Array(c.dbus_object_path for c in

2711

2767

tcp_server.clients.itervalues())

2712

2768

2713

2769

@dbus.service.method(_interface,

2715

2771

def GetAllClientsWithProperties(self):

2716

2772

"D-Bus method"

2717

2773

return dbus.Dictionary(

2718

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

2719

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

2774

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

2775

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

2720

2776

signature="oa{sv}")

2721

2777

2722

2778

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

2739

2795

2740

2796

def cleanup():

2741

2797

"Cleanup function; run on exit"

2742

service.cleanup()

2798

if zeroconf:

2799

service.cleanup()

2743

2800

2744

2801

multiprocessing.active_children()

2745

2802

wnull.close()

2759

2816

2760

2817

# A list of attributes that can not be pickled

2761

2818

# + secret.

2762

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

2763

"checker", "server_settings"))

2764

for name, typ in (inspect.getmembers

2765

(dbus.service.Object)):

2819

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

2820

"checker", "server_settings" }

2821

for name, typ in inspect.getmembers(dbus.service

2822

.Object):

2766

2823

exclude.add(name)

2767

2824

2768

2825

client_dict["encrypted_secret"] = (client

2775

2832

del client_settings[client.name]["secret"]

2776

2833

2777

2834

try:

2778

with (tempfile.NamedTemporaryFile

2779

(mode='wb', suffix=".pickle", prefix='clients-',

2780

dir=os.path.dirname(stored_state_path),

2781

delete=False)) as stored_state:

2835

with tempfile.NamedTemporaryFile(

2836

mode='wb',

2837

suffix=".pickle",

2838

prefix='clients-',

2839

dir=os.path.dirname(stored_state_path),

2840

delete=False) as stored_state:

2782

2841

pickle.dump((clients, client_settings), stored_state)

2783

tempname=stored_state.name

2842

tempname = stored_state.name

2784

2843

os.rename(tempname, stored_state_path)

2785

2844

except (IOError, OSError) as e:

2786

2845

if not debug:

2789

2848

except NameError:

2790

2849

pass

2791

2850

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

2792

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

2851

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

2793

2852

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

2794

2853

else:

2795

2854

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

2805

2864

client.disable(quiet=True)

2806

2865

if use_dbus:

2807

2866

# Emit D-Bus signal

2808

mandos_dbus_service.ClientRemoved(client

2809

.dbus_object_path,

2810

client.name)

2867

mandos_dbus_service.ClientRemoved(

2868

client.dbus_object_path, client.name)

2811

2869

client_settings.clear()

2812

2870

2813

2871

atexit.register(cleanup)

2824

2882

tcp_server.server_activate()

2825

2883

2826

2884

# Find out what port we got

2827

service.port = tcp_server.socket.getsockname()[1]

2885

if zeroconf:

2886

service.port = tcp_server.socket.getsockname()[1]

2828

2887

if use_ipv6:

2829

2888

logger.info("Now listening on address %r, port %d,"

2830

2889

" flowinfo %d, scope_id %d",

2836

2895

#service.interface = tcp_server.socket.getsockname()[3]

2837

2896

2838

2897

try:

2839

# From the Avahi example code

2840

try:

2841

service.activate()

2842

except dbus.exceptions.DBusException as error:

2843

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

2844

cleanup()

2845

sys.exit(1)

2846

# End of Avahi example code

2898

if zeroconf:

2899

# From the Avahi example code

2900

try:

2901

service.activate()

2902

except dbus.exceptions.DBusException as error:

2903

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

2904

cleanup()

2905

sys.exit(1)

2906

# End of Avahi example code

2847

2907

2848

2908

gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,

2849

2909

lambda *args, **kwargs:

2864

2924

# Must run before the D-Bus bus name gets deregistered

2865

2925

cleanup()

2866

2926

2927

2867

2928

if __name__ == '__main__':

2868

2929

main()