/mandos/trunk : revision 772

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 = "1.6.7"

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: {!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:

370

395

logger.error(bad_states[state] + ": %r", error)

371

396

self.cleanup()

372

397

elif state == avahi.SERVER_RUNNING:

373

self.add()

398

try:

399

self.add()

400

except dbus.exceptions.DBusException as error:

401

if (error.get_dbus_name()

402

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

403

logger.info("Local Zeroconf service name"

404

" collision.")

405

return self.rename(remove=False)

406

else:

407

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

408

self.cleanup()

409

os._exit(1)

374

410

else:

375

411

if error is None:

376

412

logger.debug("Unknown state: %r", state)

386

422

follow_name_owner_changes=True),

387

423

avahi.DBUS_INTERFACE_SERVER)

388

424

self.server.connect_to_signal("StateChanged",

389

self.server_state_changed)

425

self.server_state_changed)

390

426

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

391

427

392

428

393

429

class AvahiServiceToSyslog(AvahiService):

394

def rename(self):

430

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

395

431

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

396

ret = AvahiService.rename(self)

397

syslogger.setFormatter(logging.Formatter

398

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

399

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

400

.format(self.name)))

432

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

433

syslogger.setFormatter(logging.Formatter(

434

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

435

.format(self.name)))

401

436

return ret

402

437

438

def call_pipe(connection, # : multiprocessing.Connection

439

func, *args, **kwargs):

440

"""This function is meant to be called by multiprocessing.Process

441

442

This function runs func(*args, **kwargs), and writes the resulting

443

return value on the provided multiprocessing.Connection.

444

"""

445

connection.send(func(*args, **kwargs))

446

connection.close()

403

447

404

448

class Client(object):

405

449

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

432

476

last_checker_status: integer between 0 and 255 reflecting exit

433

477

status of last checker. -1 reflects crashed

434

478

checker, -2 means no checker completed yet.

479

last_checker_signal: The signal which killed the last checker, if

480

last_checker_status is -1

435

481

last_enabled: datetime.datetime(); (UTC) or None

436

482

name: string; from the config file, used in log messages and

437

483

D-Bus identifiers

450

496

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

451

497

"last_approval_request", "last_checked_ok",

452

498

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

453

client_defaults = { "timeout": "PT5M",

454

"extended_timeout": "PT15M",

455

"interval": "PT2M",

456

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

457

"host": "",

458

"approval_delay": "PT0S",

459

"approval_duration": "PT1S",

460

"approved_by_default": "True",

461

"enabled": "True",

462

}

499

client_defaults = {

500

"timeout": "PT5M",

501

"extended_timeout": "PT15M",

502

"interval": "PT2M",

503

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

504

"host": "",

505

"approval_delay": "PT0S",

506

"approval_duration": "PT1S",

507

"approved_by_default": "True",

508

"enabled": "True",

509

}

463

510

464

511

@staticmethod

465

512

def config_parser(config):

481

528

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

482

529

"enabled")

483

530

531

# Uppercase and remove spaces from fingerprint for later

532

# comparison purposes with return value from the

533

# fingerprint() function

484

534

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

485

535

.replace(" ", ""))

486

536

if "secret" in section:

528

578

self.expires = None

529

579

530

580

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

531

# Uppercase and remove spaces from fingerprint for later

532

# comparison purposes with return value from the fingerprint()

533

# function

534

581

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

535

582

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

536

583

datetime.datetime.utcnow())

543

590

self.current_checker_command = None

544

591

self.approved = None

545

592

self.approvals_pending = 0

546

self.changedstate = (multiprocessing_manager

547

.Condition(multiprocessing_manager

548

.Lock()))

549

self.client_structure = [attr for attr in

550

self.__dict__.iterkeys()

593

self.changedstate = multiprocessing_manager.Condition(

594

multiprocessing_manager.Lock())

595

self.client_structure = [attr

596

for attr in self.__dict__.iterkeys()

551

597

if not attr.startswith("_")]

552

598

self.client_structure.append("client_structure")

553

599

554

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

555

lambda obj:

556

isinstance(obj,

557

property)):

600

for name, t in inspect.getmembers(

601

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

558

602

if not name.startswith("_"):

559

603

self.client_structure.append(name)

560

604

602

646

# and every interval from then on.

603

647

if self.checker_initiator_tag is not None:

604

648

gobject.source_remove(self.checker_initiator_tag)

605

self.checker_initiator_tag = (gobject.timeout_add

606

(int(self.interval

607

.total_seconds() * 1000),

608

self.start_checker))

649

self.checker_initiator_tag = gobject.timeout_add(

650

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

651

self.start_checker)

609

652

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

610

653

if self.disable_initiator_tag is not None:

611

654

gobject.source_remove(self.disable_initiator_tag)

612

self.disable_initiator_tag = (gobject.timeout_add

613

(int(self.timeout

614

.total_seconds() * 1000),

615

self.disable))

655

self.disable_initiator_tag = gobject.timeout_add(

656

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

616

657

# Also start a new checker *right now*.

617

658

self.start_checker()

618

659

619

def checker_callback(self, pid, condition, command):

660

def checker_callback(self, source, condition, connection,

661

command):

620

662

"""The checker has completed, so take appropriate actions."""

621

663

self.checker_callback_tag = None

622

664

self.checker = None

623

if os.WIFEXITED(condition):

624

self.last_checker_status = os.WEXITSTATUS(condition)

665

# Read return code from connection (see call_pipe)

666

returncode = connection.recv()

667

connection.close()

668

669

if returncode >= 0:

670

self.last_checker_status = returncode

671

self.last_checker_signal = None

625

672

if self.last_checker_status == 0:

626

673

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

627

674

vars(self))

628

675

self.checked_ok()

629

676

else:

630

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

631

vars(self))

677

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

632

678

else:

633

679

self.last_checker_status = -1

680

self.last_checker_signal = -returncode

634

681

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

635

682

vars(self))

683

return False

636

684

637

685

def checked_ok(self):

638

686

"""Assert that the client has been seen, alive and well."""

639

687

self.last_checked_ok = datetime.datetime.utcnow()

640

688

self.last_checker_status = 0

689

self.last_checker_signal = None

641

690

self.bump_timeout()

642

691

643

692

def bump_timeout(self, timeout=None):

648

697

gobject.source_remove(self.disable_initiator_tag)

649

698

self.disable_initiator_tag = None

650

699

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

651

self.disable_initiator_tag = (gobject.timeout_add

652

(int(timeout.total_seconds()

653

* 1000), self.disable))

700

self.disable_initiator_tag = gobject.timeout_add(

701

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

654

702

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

655

703

656

704

def need_approval(self):

670

718

# than 'timeout' for the client to be disabled, which is as it

671

719

# should be.

672

720

673

# If a checker exists, make sure it is not a zombie

674

try:

675

pid, status = os.waitpid(self.checker.pid, os.WNOHANG)

676

except AttributeError:

677

pass

678

except OSError as error:

679

if error.errno != errno.ECHILD:

680

raise

681

else:

682

if pid:

683

logger.warning("Checker was a zombie")

684

gobject.source_remove(self.checker_callback_tag)

685

self.checker_callback(pid, status,

686

self.current_checker_command)

721

if self.checker is not None and not self.checker.is_alive():

722

logger.warning("Checker was not alive; joining")

723

self.checker.join()

724

self.checker = None

687

725

# Start a new checker if needed

688

726

if self.checker is None:

689

727

# Escape attributes for the shell

690

escaped_attrs = { attr:

691

re.escape(unicode(getattr(self,

692

attr)))

693

for attr in self.runtime_expansions }

728

escaped_attrs = {

729

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

730

for attr in self.runtime_expansions }

694

731

try:

695

732

command = self.checker_command % escaped_attrs

696

733

except TypeError as error:

697

734

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

698

self.checker_command, exc_info=error)

699

return True # Try again later

735

self.checker_command,

736

exc_info=error)

737

return True # Try again later

700

738

self.current_checker_command = command

701

try:

702

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

703

command, self.name)

704

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

705

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

706

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

707

# always replaced by /dev/null.)

708

# The exception is when not debugging but nevertheless

709

# running in the foreground; use the previously

710

# created wnull.

711

popen_args = {}

712

if (not self.server_settings["debug"]

713

and self.server_settings["foreground"]):

714

popen_args.update({"stdout": wnull,

715

"stderr": wnull })

716

self.checker = subprocess.Popen(command,

717

close_fds=True,

718

shell=True, cwd="/",

719

**popen_args)

720

except OSError as error:

721

logger.error("Failed to start subprocess",

722

exc_info=error)

723

return True

724

self.checker_callback_tag = (gobject.child_watch_add

725

(self.checker.pid,

726

self.checker_callback,

727

data=command))

728

# The checker may have completed before the gobject

729

# watch was added. Check for this.

730

try:

731

pid, status = os.waitpid(self.checker.pid, os.WNOHANG)

732

except OSError as error:

733

if error.errno == errno.ECHILD:

734

# This should never happen

735

logger.error("Child process vanished",

736

exc_info=error)

737

return True

738

raise

739

if pid:

740

gobject.source_remove(self.checker_callback_tag)

741

self.checker_callback(pid, status, command)

739

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

740

self.name)

741

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

742

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

743

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

744

# always replaced by /dev/null.)

745

# The exception is when not debugging but nevertheless

746

# running in the foreground; use the previously

747

# created wnull.

748

popen_args = { "close_fds": True,

749

"shell": True,

750

"cwd": "/" }

751

if (not self.server_settings["debug"]

752

and self.server_settings["foreground"]):

753

popen_args.update({"stdout": wnull,

754

"stderr": wnull })

755

pipe = multiprocessing.Pipe(duplex = False)

756

self.checker = multiprocessing.Process(

757

target = call_pipe,

758

args = (pipe[1], subprocess.call, command),

759

kwargs = popen_args)

760

self.checker.start()

761

self.checker_callback_tag = gobject.io_add_watch(

762

pipe[0].fileno(), gobject.IO_IN,

763

self.checker_callback, pipe[0], command)

742

764

# Re-run this periodically if run by gobject.timeout_add

743

765

return True

744

766

750

772

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

751

773

return

752

774

logger.debug("Stopping checker for %(name)s", vars(self))

753

try:

754

self.checker.terminate()

755

#time.sleep(0.5)

756

#if self.checker.poll() is None:

757

# self.checker.kill()

758

except OSError as error:

759

if error.errno != errno.ESRCH: # No such process

760

raise

775

self.checker.terminate()

761

776

self.checker = None

762

777

763

778

764

def dbus_service_property(dbus_interface, signature="v",

765

access="readwrite", byte_arrays=False):

779

def dbus_service_property(dbus_interface,

780

signature="v",

781

access="readwrite",

782

byte_arrays=False):

766

783

"""Decorators for marking methods of a DBusObjectWithProperties to

767

784

become properties on the D-Bus.

768

785

778

795

if byte_arrays and signature != "ay":

779

796

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

780

797

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

798

781

799

def decorator(func):

782

800

func._dbus_is_property = True

783

801

func._dbus_interface = dbus_interface

788

806

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

789

807

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

790

808

return func

809

791

810

return decorator

792

811

793

812

802

821

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

803

822

"false"}

804

823

"""

824

805

825

def decorator(func):

806

826

func._dbus_is_interface = True

807

827

func._dbus_interface = dbus_interface

808

828

func._dbus_name = dbus_interface

809

829

return func

830

810

831

return decorator

811

832

812

833

814

835

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

815

836

Usage:

816

837

838

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

839

"org.freedesktop.DBus.Property."

840

"EmitsChangedSignal": "false"})

817

841

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

818

842

access="r")

819

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

820

"org.freedesktop.DBus.Property."

821

"EmitsChangedSignal": "false"})

822

843

def Property_dbus_property(self):

823

844

return dbus.Boolean(False)

824

845

"""

846

825

847

def decorator(func):

826

848

func._dbus_annotations = annotations

827

849

return func

850

828

851

return decorator

829

852

830

853

831

854

class DBusPropertyException(dbus.exceptions.DBusException):

832

855

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

833

856

"""

834

def __unicode__(self):

835

return unicode(str(self))

857

pass

836

858

837

859

838

860

class DBusPropertyAccessException(DBusPropertyException):

868

890

def _get_all_dbus_things(self, thing):

869

891

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

870

892

"""

871

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

872

name),

893

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

873

894

athing.__get__(self))

874

895

for cls in self.__class__.__mro__

875

896

for name, athing in

876

inspect.getmembers(cls,

877

self._is_dbus_thing(thing)))

897

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

878

898

879

899

def _get_dbus_property(self, interface_name, property_name):

880

900

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

881

901

property with the specified name and interface.

882

902

"""

883

for cls in self.__class__.__mro__:

884

for name, value in (inspect.getmembers

885

(cls,

886

self._is_dbus_thing("property"))):

903

for cls in self.__class__.__mro__:

904

for name, value in inspect.getmembers(

905

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

887

906

if (value._dbus_name == property_name

888

907

and value._dbus_interface == interface_name):

889

908

return value.__get__(self)

890

909

891

910

# No such property

892

raise DBusPropertyNotFound(self.dbus_object_path + ":"

893

+ interface_name + "."

894

+ property_name)

911

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

912

self.dbus_object_path, interface_name, property_name))

895

913

896

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

914

@dbus.service.method(dbus.PROPERTIES_IFACE,

915

in_signature="ss",

897

916

out_signature="v")

898

917

def Get(self, interface_name, property_name):

899

918

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

924

943

for byte in value))

925

944

prop(value)

926

945

927

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

946

@dbus.service.method(dbus.PROPERTIES_IFACE,

947

in_signature="s",

928

948

out_signature="a{sv}")

929

949

def GetAll(self, interface_name):

930

950

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

945

965

if not hasattr(value, "variant_level"):

946

966

properties[name] = value

947

967

continue

948

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

949

value.variant_level+1)

968

properties[name] = type(value)(

969

value, variant_level = value.variant_level + 1)

950

970

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

951

971

972

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

973

def PropertiesChanged(self, interface_name, changed_properties,

974

invalidated_properties):

975

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

976

standard.

977

"""

978

pass

979

952

980

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

953

981

out_signature="s",

954

982

path_keyword='object_path',

962

990

connection)

963

991

try:

964

992

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

993

965

994

def make_tag(document, name, prop):

966

995

e = document.createElement("property")

967

996

e.setAttribute("name", name)

968

997

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

969

998

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

970

999

return e

1000

971

1001

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

972

1002

# Add property tags

973

1003

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

985

1015

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

986

1016

and prop._dbus_interface

987

1017

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

988

annots.update(getattr

989

(prop,

990

"_dbus_annotations",

991

{}))

1018

annots.update(getattr(

1019

prop, "_dbus_annotations", {}))

992

1020

for name, value in annots.items():

993

1021

ann_tag = document.createElement(

994

1022

"annotation")

999

1027

for annotation, value in dict(

1000

1028

itertools.chain.from_iterable(

1001

1029

annotations().items()

1002

for name, annotations in

1003

self._get_all_dbus_things("interface")

1030

for name, annotations

1031

in self._get_all_dbus_things("interface")

1004

1032

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

1005

1033

)).items():

1006

1034

ann_tag = document.createElement("annotation")

1035

1063

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

1036

1064

if dt is None:

1037

1065

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

1038

return dbus.String(dt.isoformat(),

1039

variant_level=variant_level)

1066

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

1040

1067

1041

1068

1042

1069

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1062

1089

(from DBusObjectWithProperties) and interfaces (from the

1063

1090

dbus_interface_annotations decorator).

1064

1091

"""

1092

1065

1093

def wrapper(cls):

1066

1094

for orig_interface_name, alt_interface_name in (

1067

alt_interface_names.items()):

1095

alt_interface_names.items()):

1068

1096

attr = {}

1069

1097

interface_names = set()

1070

1098

# Go though all attributes of the class

1072

1100

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

1073

1101

# with the wrong interface name

1074

1102

if (not hasattr(attribute, "_dbus_interface")

1075

or not attribute._dbus_interface

1076

.startswith(orig_interface_name)):

1103

or not attribute._dbus_interface.startswith(

1104

orig_interface_name)):

1077

1105

continue

1078

1106

# Create an alternate D-Bus interface name based on

1079

1107

# the current name

1080

alt_interface = (attribute._dbus_interface

1081

.replace(orig_interface_name,

1082

alt_interface_name))

1108

alt_interface = attribute._dbus_interface.replace(

1109

orig_interface_name, alt_interface_name)

1083

1110

interface_names.add(alt_interface)

1084

1111

# Is this a D-Bus signal?

1085

1112

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

1086

# Extract the original non-method undecorated

1087

# function by black magic

1088

nonmethod_func = (dict(

1113

if sys.version_info.major == 2:

1114

# Extract the original non-method undecorated

1115

# function by black magic

1116

nonmethod_func = (dict(

1089

1117

zip(attribute.func_code.co_freevars,

1090

attribute.__closure__))["func"]

1091

.cell_contents)

1118

attribute.__closure__))

1119

["func"].cell_contents)

1120

else:

1121

nonmethod_func = attribute

1092

1122

# Create a new, but exactly alike, function

1093

1123

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

1094

1124

# with the alternate D-Bus interface name

1095

new_function = (dbus.service.signal

1096

(alt_interface,

1097

attribute._dbus_signature)

1098

(types.FunctionType(

1099

nonmethod_func.func_code,

1100

nonmethod_func.func_globals,

1101

nonmethod_func.func_name,

1102

nonmethod_func.func_defaults,

1103

nonmethod_func.func_closure)))

1125

if sys.version_info.major == 2:

1126

new_function = types.FunctionType(

1127

nonmethod_func.func_code,

1128

nonmethod_func.func_globals,

1129

nonmethod_func.func_name,

1130

nonmethod_func.func_defaults,

1131

nonmethod_func.func_closure)

1132

else:

1133

new_function = types.FunctionType(

1134

nonmethod_func.__code__,

1135

nonmethod_func.__globals__,

1136

nonmethod_func.__name__,

1137

nonmethod_func.__defaults__,

1138

nonmethod_func.__closure__)

1139

new_function = (dbus.service.signal(

1140

alt_interface,

1141

attribute._dbus_signature)(new_function))

1104

1142

# Copy annotations, if any

1105

1143

try:

1106

new_function._dbus_annotations = (

1107

dict(attribute._dbus_annotations))

1144

new_function._dbus_annotations = dict(

1145

attribute._dbus_annotations)

1108

1146

except AttributeError:

1109

1147

pass

1110

1148

# Define a creator of a function to call both the

1115

1153

"""This function is a scope container to pass

1116

1154

func1 and func2 to the "call_both" function

1117

1155

outside of its arguments"""

1156

1118

1157

def call_both(*args, **kwargs):

1119

1158

"""This function will emit two D-Bus

1120

1159

signals by calling func1 and func2"""

1121

1160

func1(*args, **kwargs)

1122

1161

func2(*args, **kwargs)

1162

1123

1163

return call_both

1124

1164

# Create the "call_both" function and add it to

1125

1165

# the class

1130

1170

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

1131

1171

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

1132

1172

# to the class.

1133

attr[attrname] = (dbus.service.method

1134

(alt_interface,

1135

attribute._dbus_in_signature,

1136

attribute._dbus_out_signature)

1137

(types.FunctionType

1138

(attribute.func_code,

1139

attribute.func_globals,

1140

attribute.func_name,

1141

attribute.func_defaults,

1142

attribute.func_closure)))

1173

attr[attrname] = (

1174

dbus.service.method(

1175

alt_interface,

1176

attribute._dbus_in_signature,

1177

attribute._dbus_out_signature)

1178

(types.FunctionType(attribute.func_code,

1179

attribute.func_globals,

1180

attribute.func_name,

1181

attribute.func_defaults,

1182

attribute.func_closure)))

1143

1183

# Copy annotations, if any

1144

1184

try:

1145

attr[attrname]._dbus_annotations = (

1146

dict(attribute._dbus_annotations))

1185

attr[attrname]._dbus_annotations = dict(

1186

attribute._dbus_annotations)

1147

1187

except AttributeError:

1148

1188

pass

1149

1189

# Is this a D-Bus property?

1152

1192

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

1153

1193

# property with the alternate D-Bus interface

1154

1194

# name. Add it to the class.

1155

attr[attrname] = (dbus_service_property

1156

(alt_interface,

1157

attribute._dbus_signature,

1158

attribute._dbus_access,

1159

attribute

1160

._dbus_get_args_options

1161

["byte_arrays"])

1162

(types.FunctionType

1163

(attribute.func_code,

1164

attribute.func_globals,

1165

attribute.func_name,

1166

attribute.func_defaults,

1167

attribute.func_closure)))

1195

attr[attrname] = (dbus_service_property(

1196

alt_interface, attribute._dbus_signature,

1197

attribute._dbus_access,

1198

attribute._dbus_get_args_options

1199

["byte_arrays"])

1200

(types.FunctionType(

1201

attribute.func_code,

1202

attribute.func_globals,

1203

attribute.func_name,

1204

attribute.func_defaults,

1205

attribute.func_closure)))

1168

1206

# Copy annotations, if any

1169

1207

try:

1170

attr[attrname]._dbus_annotations = (

1171

dict(attribute._dbus_annotations))

1208

attr[attrname]._dbus_annotations = dict(

1209

attribute._dbus_annotations)

1172

1210

except AttributeError:

1173

1211

pass

1174

1212

# Is this a D-Bus interface?

1177

1215

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

1178

1216

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

1179

1217

# to the class.

1180

attr[attrname] = (dbus_interface_annotations

1181

(alt_interface)

1182

(types.FunctionType

1183

(attribute.func_code,

1184

attribute.func_globals,

1185

attribute.func_name,

1186

attribute.func_defaults,

1187

attribute.func_closure)))

1218

attr[attrname] = (

1219

dbus_interface_annotations(alt_interface)

1220

(types.FunctionType(attribute.func_code,

1221

attribute.func_globals,

1222

attribute.func_name,

1223

attribute.func_defaults,

1224

attribute.func_closure)))

1188

1225

if deprecate:

1189

1226

# Deprecate all alternate interfaces

1190

1227

iname="_AlternateDBusNames_interface_annotation{}"

1191

1228

for interface_name in interface_names:

1229

1192

1230

@dbus_interface_annotations(interface_name)

1193

1231

def func(self):

1194

1232

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

1195

"true" }

1233

"true" }

1196

1234

# Find an unused name

1197

1235

for aname in (iname.format(i)

1198

1236

for i in itertools.count()):

1203

1241

# Replace the class with a new subclass of it with

1204

1242

# methods, signals, etc. as created above.

1205

1243

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

1206

(cls,), attr)

1244

(cls, ), attr)

1207

1245

return cls

1246

1208

1247

return wrapper

1209

1248

1210

1249

1211

1250

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

1212

"se.bsnet.fukt.Mandos"})

1251

"se.bsnet.fukt.Mandos"})

1213

1252

class ClientDBus(Client, DBusObjectWithProperties):

1214

1253

"""A Client class using D-Bus

1215

1254

1219

1258

"""

1220

1259

1221

1260

runtime_expansions = (Client.runtime_expansions

1222

+ ("dbus_object_path",))

1261

+ ("dbus_object_path", ))

1262

1263

_interface = "se.recompile.Mandos.Client"

1223

1264

1224

1265

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

1225

1266

1228

1269

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

1229

1270

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

1230

1271

# the D-Bus

1231

client_object_name = unicode(self.name).translate(

1272

client_object_name = str(self.name).translate(

1232

1273

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

1233

1274

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

1234

self.dbus_object_path = (dbus.ObjectPath

1235

("/clients/" + client_object_name))

1275

self.dbus_object_path = dbus.ObjectPath(

1276

"/clients/" + client_object_name)

1236

1277

DBusObjectWithProperties.__init__(self, self.bus,

1237

1278

self.dbus_object_path)

1238

1279

1239

def notifychangeproperty(transform_func,

1240

dbus_name, type_func=lambda x: x,

1241

variant_level=1):

1280

def notifychangeproperty(transform_func, dbus_name,

1281

type_func=lambda x: x,

1282

variant_level=1,

1283

invalidate_only=False,

1284

_interface=_interface):

1242

1285

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

1243

1286

its changes to DBus.

1244

1287

1250

1293

variant_level: D-Bus variant level. Default: 1

1251

1294

"""

1252

1295

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

1296

1253

1297

def setter(self, value):

1254

1298

if hasattr(self, "dbus_object_path"):

1255

1299

if (not hasattr(self, attrname) or

1256

1300

type_func(getattr(self, attrname, None))

1257

1301

!= type_func(value)):

1258

dbus_value = transform_func(type_func(value),

1259

variant_level

1260

=variant_level)

1261

self.PropertyChanged(dbus.String(dbus_name),

1262

dbus_value)

1302

if invalidate_only:

1303

self.PropertiesChanged(

1304

_interface, dbus.Dictionary(),

1305

dbus.Array((dbus_name, )))

1306

else:

1307

dbus_value = transform_func(

1308

type_func(value),

1309

variant_level = variant_level)

1310

self.PropertyChanged(dbus.String(dbus_name),

1311

dbus_value)

1312

self.PropertiesChanged(

1313

_interface,

1314

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

1315

dbus_value }),

1316

dbus.Array())

1263

1317

setattr(self, attrname, value)

1264

1318

1265

1319

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

1271

1325

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

1272

1326

last_enabled = notifychangeproperty(datetime_to_dbus,

1273

1327

"LastEnabled")

1274

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

1275

type_func = lambda checker:

1276

checker is not None)

1328

checker = notifychangeproperty(

1329

dbus.Boolean, "CheckerRunning",

1330

type_func = lambda checker: checker is not None)

1277

1331

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1278

1332

"LastCheckedOK")

1279

1333

last_checker_status = notifychangeproperty(dbus.Int16,

1282

1336

datetime_to_dbus, "LastApprovalRequest")

1283

1337

approved_by_default = notifychangeproperty(dbus.Boolean,

1284

1338

"ApprovedByDefault")

1285

approval_delay = notifychangeproperty(dbus.UInt64,

1286

"ApprovalDelay",

1287

type_func =

1288

lambda td: td.total_seconds()

1289

* 1000)

1339

approval_delay = notifychangeproperty(

1340

dbus.UInt64, "ApprovalDelay",

1341

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

1290

1342

approval_duration = notifychangeproperty(

1291

1343

dbus.UInt64, "ApprovalDuration",

1292

1344

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

1293

1345

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

1294

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

1295

type_func = lambda td:

1296

td.total_seconds() * 1000)

1346

timeout = notifychangeproperty(

1347

dbus.UInt64, "Timeout",

1348

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

1297

1349

extended_timeout = notifychangeproperty(

1298

1350

dbus.UInt64, "ExtendedTimeout",

1299

1351

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

1300

interval = notifychangeproperty(dbus.UInt64,

1301

"Interval",

1302

type_func =

1303

lambda td: td.total_seconds()

1304

* 1000)

1352

interval = notifychangeproperty(

1353

dbus.UInt64, "Interval",

1354

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

1305

1355

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

1356

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

1357

invalidate_only=True)

1306

1358

1307

1359

del notifychangeproperty

1308

1360

1315

1367

DBusObjectWithProperties.__del__(self, *args, **kwargs)

1316

1368

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

1317

1369

1318

def checker_callback(self, pid, condition, command,

1319

*args, **kwargs):

1320

self.checker_callback_tag = None

1321

self.checker = None

1322

if os.WIFEXITED(condition):

1323

exitstatus = os.WEXITSTATUS(condition)

1370

def checker_callback(self, source, condition,

1371

connection, command, *args, **kwargs):

1372

ret = Client.checker_callback(self, source, condition,

1373

connection, command, *args,

1374

**kwargs)

1375

exitstatus = self.last_checker_status

1376

if exitstatus >= 0:

1324

1377

# Emit D-Bus signal

1325

1378

self.CheckerCompleted(dbus.Int16(exitstatus),

1326

dbus.Int64(condition),

1379

dbus.Int64(0),

1327

1380

dbus.String(command))

1328

1381

else:

1329

1382

# Emit D-Bus signal

1330

1383

self.CheckerCompleted(dbus.Int16(-1),

1331

dbus.Int64(condition),

1384

dbus.Int64(

1385

self.last_checker_signal),

1332

1386

dbus.String(command))

1333

1334

return Client.checker_callback(self, pid, condition, command,

1335

*args, **kwargs)

1387

return ret

1336

1388

1337

1389

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

1338

1390

old_checker_pid = getattr(self.checker, "pid", None)

1355

1407

self.send_changedstate()

1356

1408

1357

1409

## D-Bus methods, signals & properties

1358

_interface = "se.recompile.Mandos.Client"

1359

1410

1360

1411

## Interfaces

1361

1412

1362

@dbus_interface_annotations(_interface)

1363

def _foo(self):

1364

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

1365

"false"}

1366

1367

1413

## Signals

1368

1414

1369

1415

# CheckerCompleted - signal

1379

1425

pass

1380

1426

1381

1427

# PropertyChanged - signal

1428

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

1382

1429

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

1383

1430

def PropertyChanged(self, property, value):

1384

1431

"D-Bus signal"

1448

1495

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

1449

1496

1450

1497

# ApprovedByDefault - property

1451

@dbus_service_property(_interface, signature="b",

1498

@dbus_service_property(_interface,

1499

signature="b",

1452

1500

access="readwrite")

1453

1501

def ApprovedByDefault_dbus_property(self, value=None):

1454

1502

if value is None: # get

1456

1504

self.approved_by_default = bool(value)

1457

1505

1458

1506

# ApprovalDelay - property

1459

@dbus_service_property(_interface, signature="t",

1507

@dbus_service_property(_interface,

1508

signature="t",

1460

1509

access="readwrite")

1461

1510

def ApprovalDelay_dbus_property(self, value=None):

1462

1511

if value is None: # get

1465

1514

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

1466

1515

1467

1516

# ApprovalDuration - property

1468

@dbus_service_property(_interface, signature="t",

1517

@dbus_service_property(_interface,

1518

signature="t",

1469

1519

access="readwrite")

1470

1520

def ApprovalDuration_dbus_property(self, value=None):

1471

1521

if value is None: # get

1484

1534

return dbus.String(self.fingerprint)

1485

1535

1486

1536

# Host - property

1487

@dbus_service_property(_interface, signature="s",

1537

@dbus_service_property(_interface,

1538

signature="s",

1488

1539

access="readwrite")

1489

1540

def Host_dbus_property(self, value=None):

1490

1541

if value is None: # get

1491

1542

return dbus.String(self.host)

1492

self.host = unicode(value)

1543

self.host = str(value)

1493

1544

1494

1545

# Created - property

1495

1546

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

1502

1553

return datetime_to_dbus(self.last_enabled)

1503

1554

1504

1555

# Enabled - property

1505

@dbus_service_property(_interface, signature="b",

1556

@dbus_service_property(_interface,

1557

signature="b",

1506

1558

access="readwrite")

1507

1559

def Enabled_dbus_property(self, value=None):

1508

1560

if value is None: # get

1513

1565

self.disable()

1514

1566

1515

1567

# LastCheckedOK - property

1516

@dbus_service_property(_interface, signature="s",

1568

@dbus_service_property(_interface,

1569

signature="s",

1517

1570

access="readwrite")

1518

1571

def LastCheckedOK_dbus_property(self, value=None):

1519

1572

if value is not None:

1522

1575

return datetime_to_dbus(self.last_checked_ok)

1523

1576

1524

1577

# LastCheckerStatus - property

1525

@dbus_service_property(_interface, signature="n",

1526

access="read")

1578

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

1527

1579

def LastCheckerStatus_dbus_property(self):

1528

1580

return dbus.Int16(self.last_checker_status)

1529

1581

1538

1590

return datetime_to_dbus(self.last_approval_request)

1539

1591

1540

1592

# Timeout - property

1541

@dbus_service_property(_interface, signature="t",

1593

@dbus_service_property(_interface,

1594

signature="t",

1542

1595

access="readwrite")

1543

1596

def Timeout_dbus_property(self, value=None):

1544

1597

if value is None: # get

1557

1610

is None):

1558

1611

return

1559

1612

gobject.source_remove(self.disable_initiator_tag)

1560

self.disable_initiator_tag = (

1561

gobject.timeout_add(

1562

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

1563

* 1000), self.disable))

1613

self.disable_initiator_tag = gobject.timeout_add(

1614

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

1615

self.disable)

1564

1616

1565

1617

# ExtendedTimeout - property

1566

@dbus_service_property(_interface, signature="t",

1618

@dbus_service_property(_interface,

1619

signature="t",

1567

1620

access="readwrite")

1568

1621

def ExtendedTimeout_dbus_property(self, value=None):

1569

1622

if value is None: # get

1572

1625

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

1573

1626

1574

1627

# Interval - property

1575

@dbus_service_property(_interface, signature="t",

1628

@dbus_service_property(_interface,

1629

signature="t",

1576

1630

access="readwrite")

1577

1631

def Interval_dbus_property(self, value=None):

1578

1632

if value is None: # get

1583

1637

if self.enabled:

1584

1638

# Reschedule checker run

1585

1639

gobject.source_remove(self.checker_initiator_tag)

1586

self.checker_initiator_tag = (gobject.timeout_add

1587

(value, self.start_checker))

1588

self.start_checker() # Start one now, too

1640

self.checker_initiator_tag = gobject.timeout_add(

1641

value, self.start_checker)

1642

self.start_checker() # Start one now, too

1589

1643

1590

1644

# Checker - property

1591

@dbus_service_property(_interface, signature="s",

1645

@dbus_service_property(_interface,

1646

signature="s",

1592

1647

access="readwrite")

1593

1648

def Checker_dbus_property(self, value=None):

1594

1649

if value is None: # get

1595

1650

return dbus.String(self.checker_command)

1596

self.checker_command = unicode(value)

1651

self.checker_command = str(value)

1597

1652

1598

1653

# CheckerRunning - property

1599

@dbus_service_property(_interface, signature="b",

1654

@dbus_service_property(_interface,

1655

signature="b",

1600

1656

access="readwrite")

1601

1657

def CheckerRunning_dbus_property(self, value=None):

1602

1658

if value is None: # get

1612

1668

return self.dbus_object_path # is already a dbus.ObjectPath

1613

1669

1614

1670

# Secret = property

1615

@dbus_service_property(_interface, signature="ay",

1616

access="write", byte_arrays=True)

1671

@dbus_service_property(_interface,

1672

signature="ay",

1673

access="write",

1674

byte_arrays=True)

1617

1675

def Secret_dbus_property(self, value):

1618

self.secret = str(value)

1676

self.secret = bytes(value)

1619

1677

1620

1678

del _interface

1621

1679

1625

1683

self._pipe = child_pipe

1626

1684

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

1627

1685

if not self._pipe.recv():

1628

raise KeyError()

1686

raise KeyError(fpr)

1629

1687

1630

1688

def __getattribute__(self, name):

1631

1689

if name == '_pipe':

1635

1693

if data[0] == 'data':

1636

1694

return data[1]

1637

1695

if data[0] == 'function':

1696

1638

1697

def func(*args, **kwargs):

1639

1698

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

1640

1699

return self._pipe.recv()[1]

1700

1641

1701

return func

1642

1702

1643

1703

def __setattr__(self, name, value):

1655

1715

def handle(self):

1656

1716

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

1657

1717

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

1658

unicode(self.client_address))

1718

str(self.client_address))

1659

1719

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

1660

1720

self.server.child_pipe.fileno())

1661

1721

1662

session = (gnutls.connection

1663

.ClientSession(self.request,

1664

gnutls.connection

1665

.X509Credentials()))

1722

session = gnutls.connection.ClientSession(

1723

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

1666

1724

1667

1725

# Note: gnutls.connection.X509Credentials is really a

1668

1726

# generic GnuTLS certificate credentials object so long as

1677

1735

priority = self.server.gnutls_priority

1678

1736

if priority is None:

1679

1737

priority = "NORMAL"

1680

(gnutls.library.functions

1681

.gnutls_priority_set_direct(session._c_object,

1682

priority, None))

1738

gnutls.library.functions.gnutls_priority_set_direct(

1739

session._c_object, priority, None)

1683

1740

1684

1741

# Start communication using the Mandos protocol

1685

1742

# Get protocol number

1705

1762

approval_required = False

1706

1763

try:

1707

1764

try:

1708

fpr = self.fingerprint(self.peer_certificate

1709

(session))

1765

fpr = self.fingerprint(

1766

self.peer_certificate(session))

1710

1767

except (TypeError,

1711

1768

gnutls.errors.GNUTLSError) as error:

1712

1769

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

1727

1784

while True:

1728

1785

if not client.enabled:

1729

1786

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

1730

client.name)

1787

client.name)

1731

1788

if self.server.use_dbus:

1732

1789

# Emit D-Bus signal

1733

1790

client.Rejected("Disabled")

1780

1837

logger.warning("gnutls send failed",

1781

1838

exc_info=error)

1782

1839

return

1783

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

1784

sent, len(client.secret)

1785

- (sent_size + sent))

1840

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

1841

len(client.secret) - (sent_size

1842

+ sent))

1786

1843

sent_size += sent

1787

1844

1788

1845

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

1805

1862

def peer_certificate(session):

1806

1863

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

1807

1864

# If not an OpenPGP certificate...

1808

if (gnutls.library.functions

1809

.gnutls_certificate_type_get(session._c_object)

1865

if (gnutls.library.functions.gnutls_certificate_type_get(

1866

session._c_object)

1810

1867

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1811

1868

# ...do the normal thing

1812

1869

return session.peer_certificate

1826

1883

def fingerprint(openpgp):

1827

1884

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

1828

1885

# New GnuTLS "datum" with the OpenPGP public key

1829

datum = (gnutls.library.types

1830

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

1831

ctypes.POINTER

1832

(ctypes.c_ubyte)),

1833

ctypes.c_uint(len(openpgp))))

1886

datum = gnutls.library.types.gnutls_datum_t(

1887

ctypes.cast(ctypes.c_char_p(openpgp),

1888

ctypes.POINTER(ctypes.c_ubyte)),

1889

ctypes.c_uint(len(openpgp)))

1834

1890

# New empty GnuTLS certificate

1835

1891

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1836

(gnutls.library.functions

1837

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

1892

gnutls.library.functions.gnutls_openpgp_crt_init(

1893

ctypes.byref(crt))

1838

1894

# Import the OpenPGP public key into the certificate

1839

(gnutls.library.functions

1840

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

1841

gnutls.library.constants

1842

.GNUTLS_OPENPGP_FMT_RAW))

1895

gnutls.library.functions.gnutls_openpgp_crt_import(

1896

crt, ctypes.byref(datum),

1897

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

1843

1898

# Verify the self signature in the key

1844

1899

crtverify = ctypes.c_uint()

1845

(gnutls.library.functions

1846

.gnutls_openpgp_crt_verify_self(crt, 0,

1847

ctypes.byref(crtverify)))

1900

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

1901

crt, 0, ctypes.byref(crtverify))

1848

1902

if crtverify.value != 0:

1849

1903

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1850

raise (gnutls.errors.CertificateSecurityError

1851

("Verify failed"))

1904

raise gnutls.errors.CertificateSecurityError(

1905

"Verify failed")

1852

1906

# New buffer for the fingerprint

1853

1907

buf = ctypes.create_string_buffer(20)

1854

1908

buf_len = ctypes.c_size_t()

1855

1909

# Get the fingerprint from the certificate into the buffer

1856

(gnutls.library.functions

1857

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

1858

ctypes.byref(buf_len)))

1910

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

1911

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

1859

1912

# Deinit the certificate

1860

1913

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1861

1914

# Convert the buffer to a Python bytestring

1867

1920

1868

1921

class MultiprocessingMixIn(object):

1869

1922

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

1923

1870

1924

def sub_process_main(self, request, address):

1871

1925

try:

1872

1926

self.finish_request(request, address)

1884

1938

1885

1939

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1886

1940

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

1941

1887

1942

def process_request(self, request, client_address):

1888

1943

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

1889

1944

1910

1965

interface: None or a network interface name (string)

1911

1966

use_ipv6: Boolean; to use IPv6 or not

1912

1967

"""

1968

1913

1969

def __init__(self, server_address, RequestHandlerClass,

1914

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

1970

interface=None,

1971

use_ipv6=True,

1972

socketfd=None):

1915

1973

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

1916

1974

creating a new one with socket.socket().

1917

1975

"""

1958

2016

self.interface)

1959

2017

else:

1960

2018

try:

1961

self.socket.setsockopt(socket.SOL_SOCKET,

1962

SO_BINDTODEVICE,

1963

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

2019

self.socket.setsockopt(

2020

socket.SOL_SOCKET, SO_BINDTODEVICE,

2021

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

1964

2022

except socket.error as error:

1965

2023

if error.errno == errno.EPERM:

1966

2024

logger.error("No permission to bind to"

1984

2042

self.server_address = (any_address,

1985

2043

self.server_address[1])

1986

2044

elif not self.server_address[1]:

1987

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

1988

0)

2045

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

1989

2046

# if self.interface:

1990

2047

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

1991

2048

# 0, # port

2005

2062

2006

2063

Assumes a gobject.MainLoop event loop.

2007

2064

"""

2065

2008

2066

def __init__(self, server_address, RequestHandlerClass,

2009

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

2010

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

2067

interface=None,

2068

use_ipv6=True,

2069

clients=None,

2070

gnutls_priority=None,

2071

use_dbus=True,

2072

socketfd=None):

2011

2073

self.enabled = False

2012

2074

self.clients = clients

2013

2075

if self.clients is None:

2019

2081

interface = interface,

2020

2082

use_ipv6 = use_ipv6,

2021

2083

socketfd = socketfd)

2084

2022

2085

def server_activate(self):

2023

2086

if self.enabled:

2024

2087

return socketserver.TCPServer.server_activate(self)

2028

2091

2029

2092

def add_pipe(self, parent_pipe, proc):

2030

2093

# Call "handle_ipc" for both data and EOF events

2031

gobject.io_add_watch(parent_pipe.fileno(),

2032

gobject.IO_IN | gobject.IO_HUP,

2033

functools.partial(self.handle_ipc,

2034

parent_pipe =

2035

parent_pipe,

2036

proc = proc))

2094

gobject.io_add_watch(

2095

parent_pipe.fileno(),

2096

gobject.IO_IN | gobject.IO_HUP,

2097

functools.partial(self.handle_ipc,

2098

parent_pipe = parent_pipe,

2099

proc = proc))

2037

2100

2038

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

2039

proc = None, client_object=None):

2101

def handle_ipc(self, source, condition,

2102

parent_pipe=None,

2103

proc = None,

2104

client_object=None):

2040

2105

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

2041

2106

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

2042

2107

# Wait for other process to exit

2065

2130

parent_pipe.send(False)

2066

2131

return False

2067

2132

2068

gobject.io_add_watch(parent_pipe.fileno(),

2069

gobject.IO_IN | gobject.IO_HUP,

2070

functools.partial(self.handle_ipc,

2071

parent_pipe =

2072

parent_pipe,

2073

proc = proc,

2074

client_object =

2075

client))

2133

gobject.io_add_watch(

2134

parent_pipe.fileno(),

2135

gobject.IO_IN | gobject.IO_HUP,

2136

functools.partial(self.handle_ipc,

2137

parent_pipe = parent_pipe,

2138

proc = proc,

2139

client_object = client))

2076

2140

parent_pipe.send(True)

2077

2141

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

2078

2142

# same fileno

2084

2148

2085

2149

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

2086

2150

funcname)(*args,

2087

**kwargs)))

2151

**kwargs)))

2088

2152

2089

2153

if command == 'getattr':

2090

2154

attrname = request[1]

2091

if callable(client_object.__getattribute__(attrname)):

2092

parent_pipe.send(('function',))

2155

if isinstance(client_object.__getattribute__(attrname),

2156

collections.Callable):

2157

parent_pipe.send(('function', ))

2093

2158

else:

2094

parent_pipe.send(('data', client_object

2095

.__getattribute__(attrname)))

2159

parent_pipe.send((

2160

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

2096

2161

2097

2162

if command == 'setattr':

2098

2163

attrname = request[1]

2129

2194

# avoid excessive use of external libraries.

2130

2195

2131

2196

# New type for defining tokens, syntax, and semantics all-in-one

2132

Token = collections.namedtuple("Token",

2133

("regexp", # To match token; if

2134

# "value" is not None,

2135

# must have a "group"

2136

# containing digits

2137

"value", # datetime.timedelta or

2138

# None

2139

"followers")) # Tokens valid after

2140

# this token

2197

Token = collections.namedtuple("Token", (

2198

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

2199

# a "group" containing digits

2200

"value", # datetime.timedelta or None

2201

"followers")) # Tokens valid after this token

2141

2202

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

2142

2203

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

2143

2204

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

2144

2205

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

2145

2206

datetime.timedelta(seconds=1),

2146

frozenset((token_end,)))

2207

frozenset((token_end, )))

2147

2208

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

2148

2209

datetime.timedelta(minutes=1),

2149

2210

frozenset((token_second, token_end)))

2165

2226

frozenset((token_month, token_end)))

2166

2227

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

2167

2228

datetime.timedelta(weeks=1),

2168

frozenset((token_end,)))

2229

frozenset((token_end, )))

2169

2230

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

2170

2231

frozenset((token_year, token_month,

2171

2232

token_day, token_time,

2173

2234

# Define starting values

2174

2235

value = datetime.timedelta() # Value so far

2175

2236

found_token = None

2176

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

2237

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

2177

2238

s = duration # String left to parse

2178

2239

# Loop until end token is found

2179

2240

while found_token is not token_end:

2196

2257

break

2197

2258

else:

2198

2259

# No currently valid tokens were found

2199

raise ValueError("Invalid RFC 3339 duration")

2260

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

2261

.format(duration))

2200

2262

# End token found

2201

2263

return value

2202

2264

2226

2288

timevalue = datetime.timedelta(0)

2227

2289

for s in interval.split():

2228

2290

try:

2229

suffix = unicode(s[-1])

2291

suffix = s[-1]

2230

2292

value = int(s[:-1])

2231

2293

if suffix == "d":

2232

2294

delta = datetime.timedelta(value)

2239

2301

elif suffix == "w":

2240

2302

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

2241

2303

else:

2242

raise ValueError("Unknown suffix {!r}"

2243

.format(suffix))

2304

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

2244

2305

except IndexError as e:

2245

2306

raise ValueError(*(e.args))

2246

2307

timevalue += delta

2262

2323

# Close all standard open file descriptors

2263

2324

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

2264

2325

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

2265

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

2326

raise OSError(errno.ENODEV,

2327

"{} not a character device"

2266

2328

.format(os.devnull))

2267

2329

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

2268

2330

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

2334

2396

"port": "",

2335

2397

"debug": "False",

2336

2398

"priority":

2337

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

2399

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

2400

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

2338

2401

"servicename": "Mandos",

2339

2402

"use_dbus": "True",

2340

2403

"use_ipv6": "True",

2344

2407

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

2345

2408

"foreground": "False",

2346

2409

"zeroconf": "True",

2347

}

2410

}

2348

2411

2349

2412

# Parse config file for server-global settings

2350

2413

server_config = configparser.SafeConfigParser(server_defaults)

2351

2414

del server_defaults

2352

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

2353

"mandos.conf"))

2415

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

2354

2416

# Convert the SafeConfigParser object to a dict

2355

2417

server_settings = server_config.defaults()

2356

2418

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

2374

2436

# Override the settings from the config file with command line

2375

2437

# options, if set.

2376

2438

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

2377

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

2378

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

2379

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

2439

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

2440

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

2441

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

2380

2442

value = getattr(options, option)

2381

2443

if value is not None:

2382

2444

server_settings[option] = value

2383

2445

del options

2384

2446

# Force all strings to be unicode

2385

2447

for option in server_settings.keys():

2386

if type(server_settings[option]) is str:

2387

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

2448

if isinstance(server_settings[option], bytes):

2449

server_settings[option] = (server_settings[option]

2450

.decode("utf-8"))

2388

2451

# Force all boolean options to be boolean

2389

2452

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

2390

2453

"foreground", "zeroconf"):

2396

2459

2397

2460

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

2398

2461

2399

if (not server_settings["zeroconf"] and

2400

not (server_settings["port"]

2401

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

2402

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

2403

" Zeroconf")

2462

if (not server_settings["zeroconf"]

2463

and not (server_settings["port"]

2464

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

2465

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

2404

2466

2405

2467

# For convenience

2406

2468

debug = server_settings["debug"]

2422

2484

initlogger(debug, level)

2423

2485

2424

2486

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

2425

syslogger.setFormatter(logging.Formatter

2426

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

2427

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

2428

.format(server_settings

2429

["servicename"])))

2487

syslogger.setFormatter(

2488

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

2489

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

2490

server_settings["servicename"])))

2430

2491

2431

2492

# Parse config file with clients

2432

2493

client_config = configparser.SafeConfigParser(Client

2440

2501

socketfd = None

2441

2502

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

2442

2503

socketfd = server_settings["socket"]

2443

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

2444

server_settings["port"]),

2445

ClientHandler,

2446

interface=(server_settings["interface"]

2447

or None),

2448

use_ipv6=use_ipv6,

2449

gnutls_priority=

2450

server_settings["priority"],

2451

use_dbus=use_dbus,

2452

socketfd=socketfd)

2504

tcp_server = MandosServer(

2505

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

2506

ClientHandler,

2507

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

2508

use_ipv6=use_ipv6,

2509

gnutls_priority=server_settings["priority"],

2510

use_dbus=use_dbus,

2511

socketfd=socketfd)

2453

2512

if not foreground:

2454

2513

pidfilename = "/run/mandos.pid"

2455

2514

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

2456

2515

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

2457

2516

pidfile = None

2458

2517

try:

2459

pidfile = open(pidfilename, "w")

2518

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

2460

2519

except IOError as e:

2461

2520

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

2462

2521

exc_info=e)

2489

2548

def debug_gnutls(level, string):

2490

2549

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

2491

2550

2492

(gnutls.library.functions

2493

.gnutls_global_set_log_function(debug_gnutls))

2551

gnutls.library.functions.gnutls_global_set_log_function(

2552

debug_gnutls)

2494

2553

2495

2554

# Redirect stdin so all checkers get /dev/null

2496

2555

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

2516

2575

if use_dbus:

2517

2576

try:

2518

2577

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

2519

bus, do_not_queue=True)

2520

old_bus_name = (dbus.service.BusName

2521

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

2522

do_not_queue=True))

2523

except dbus.exceptions.NameExistsException as e:

2578

bus,

2579

do_not_queue=True)

2580

old_bus_name = dbus.service.BusName(

2581

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

2582

do_not_queue=True)

2583

except dbus.exceptions.DBusException as e:

2524

2584

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

2525

2585

use_dbus = False

2526

2586

server_settings["use_dbus"] = False

2527

2587

tcp_server.use_dbus = False

2528

2588

if zeroconf:

2529

2589

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2530

service = AvahiServiceToSyslog(name =

2531

server_settings["servicename"],

2532

servicetype = "_mandos._tcp",

2533

protocol = protocol, bus = bus)

2590

service = AvahiServiceToSyslog(

2591

name = server_settings["servicename"],

2592

servicetype = "_mandos._tcp",

2593

protocol = protocol,

2594

bus = bus)

2534

2595

if server_settings["interface"]:

2535

service.interface = (if_nametoindex

2536

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

2596

service.interface = if_nametoindex(

2597

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

2537

2598

2538

2599

global multiprocessing_manager

2539

2600

multiprocessing_manager = multiprocessing.Manager()

2558

2619

if server_settings["restore"]:

2559

2620

try:

2560

2621

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

2561

clients_data, old_client_settings = (pickle.load

2562

(stored_state))

2622

clients_data, old_client_settings = pickle.load(

2623

stored_state)

2563

2624

os.remove(stored_state_path)

2564

2625

except IOError as e:

2565

2626

if e.errno == errno.ENOENT:

2566

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

2567

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

2627

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

2628

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

2568

2629

else:

2569

2630

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

2570

2631

exc_info=e)

2571

2632

raise

2572

2633

except EOFError as e:

2573

2634

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

2574

"EOFError:", exc_info=e)

2635

"EOFError:",

2636

exc_info=e)

2575

2637

2576

2638

with PGPEngine() as pgp:

2577

2639

for client_name, client in clients_data.items():

2589

2651

# For each value in new config, check if it

2590

2652

# differs from the old config value (Except for

2591

2653

# the "secret" attribute)

2592

if (name != "secret" and

2593

value != old_client_settings[client_name]

2594

[name]):

2654

if (name != "secret"

2655

and (value !=

2656

old_client_settings[client_name][name])):

2595

2657

client[name] = value

2596

2658

except KeyError:

2597

2659

pass

2598

2660

2599

2661

# Clients who has passed its expire date can still be

2600

# enabled if its last checker was successful. Clients

2662

# enabled if its last checker was successful. A Client

2601

2663

# whose checker succeeded before we stored its state is

2602

2664

# assumed to have successfully run all checkers during

2603

2665

# downtime.

2606

2668

if not client["last_checked_ok"]:

2607

2669

logger.warning(

2608

2670

"disabling client {} - Client never "

2609

"performed a successful checker"

2610

.format(client_name))

2671

"performed a successful checker".format(

2672

client_name))

2611

2673

client["enabled"] = False

2612

2674

elif client["last_checker_status"] != 0:

2613

2675

logger.warning(

2614

2676

"disabling client {} - Client last"

2615

" checker failed with error code {}"

2616

.format(client_name,

2617

client["last_checker_status"]))

2677

" checker failed with error code"

2678

" {}".format(

2679

client_name,

2680

client["last_checker_status"]))

2618

2681

client["enabled"] = False

2619

2682

else:

2620

client["expires"] = (datetime.datetime

2621

.utcnow()

2622

+ client["timeout"])

2683

client["expires"] = (

2684

datetime.datetime.utcnow()

2685

+ client["timeout"])

2623

2686

logger.debug("Last checker succeeded,"

2624

" keeping {} enabled"

2625

.format(client_name))

2687

" keeping {} enabled".format(

2688

client_name))

2626

2689

try:

2627

client["secret"] = (

2628

pgp.decrypt(client["encrypted_secret"],

2629

client_settings[client_name]

2630

["secret"]))

2690

client["secret"] = pgp.decrypt(

2691

client["encrypted_secret"],

2692

client_settings[client_name]["secret"])

2631

2693

except PGPError:

2632

2694

# If decryption fails, we use secret from new settings

2633

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

2634

.format(client_name))

2635

client["secret"] = (

2636

client_settings[client_name]["secret"])

2695

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

2696

client_name))

2697

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

2698

["secret"])

2637

2699

2638

2700

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

2639

2701

for client_name in (set(old_client_settings)

2646

2708

# Create all client objects

2647

2709

for client_name, client in clients_data.items():

2648

2710

tcp_server.clients[client_name] = client_class(

2649

name = client_name, settings = client,

2711

name = client_name,

2712

settings = client,

2650

2713

server_settings = server_settings)

2651

2714

2652

2715

if not tcp_server.clients:

2654

2717

2655

2718

if not foreground:

2656

2719

if pidfile is not None:

2720

pid = os.getpid()

2657

2721

try:

2658

2722

with pidfile:

2659

pid = os.getpid()

2660

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

2723

print(pid, file=pidfile)

2661

2724

except IOError:

2662

2725

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

2663

2726

pidfilename, pid)

2668

2731

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

2669

2732

2670

2733

if use_dbus:

2671

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

2672

"se.bsnet.fukt.Mandos"})

2734

2735

@alternate_dbus_interfaces(

2736

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

2673

2737

class MandosDBusService(DBusObjectWithProperties):

2674

2738

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

2739

2675

2740

def __init__(self):

2676

2741

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

2742

2677

2743

_interface = "se.recompile.Mandos"

2678

2744

2679

2745

@dbus_interface_annotations(_interface)

2680

2746

def _foo(self):

2681

return { "org.freedesktop.DBus.Property"

2682

".EmitsChangedSignal":

2683

"false"}

2747

return {

2748

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

2749

"false" }

2684

2750

2685

2751

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

2686

2752

def ClientAdded(self, objpath):

2700

2766

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

2701

2767

def GetAllClients(self):

2702

2768

"D-Bus method"

2703

return dbus.Array(c.dbus_object_path

2704

for c in

2769

return dbus.Array(c.dbus_object_path for c in

2705

2770

tcp_server.clients.itervalues())

2706

2771

2707

2772

@dbus.service.method(_interface,

2709

2774

def GetAllClientsWithProperties(self):

2710

2775

"D-Bus method"

2711

2776

return dbus.Dictionary(

2712

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

2713

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

2777

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

2778

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

2714

2779

signature="oa{sv}")

2715

2780

2716

2781

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

2756

2821

# + secret.

2757

2822

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

2758

2823

"checker", "server_settings" }

2759

for name, typ in (inspect.getmembers

2760

(dbus.service.Object)):

2824

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

2825

.Object):

2761

2826

exclude.add(name)

2762

2827

2763

2828

client_dict["encrypted_secret"] = (client

2770

2835

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

2771

2836

2772

2837

try:

2773

with (tempfile.NamedTemporaryFile

2774

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

2775

dir=os.path.dirname(stored_state_path),

2776

delete=False)) as stored_state:

2838

with tempfile.NamedTemporaryFile(

2839

mode='wb',

2840

suffix=".pickle",

2841

prefix='clients-',

2842

dir=os.path.dirname(stored_state_path),

2843

delete=False) as stored_state:

2777

2844

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

2778

tempname=stored_state.name

2845

tempname = stored_state.name

2779

2846

os.rename(tempname, stored_state_path)

2780

2847

except (IOError, OSError) as e:

2781

2848

if not debug:

2800

2867

client.disable(quiet=True)

2801

2868

if use_dbus:

2802

2869

# Emit D-Bus signal

2803

mandos_dbus_service.ClientRemoved(client

2804

.dbus_object_path,

2805

client.name)

2870

mandos_dbus_service.ClientRemoved(

2871

client.dbus_object_path, client.name)

2806

2872

client_settings.clear()

2807

2873

2808

2874

atexit.register(cleanup)

2861

2927

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

2862

2928

cleanup()

2863

2929

2930

2864

2931

if __name__ == '__main__':

2865

2932

main()