/mandos/trunk : revision 859

1

#!/usr/bin/python2.7

1

#!/usr/bin/python

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

34

from __future__ import (division, absolute_import, print_function,

35

unicode_literals)

36

37

from future_builtins import *

37

try:

38

from future_builtins import *

39

except ImportError:

40

pass

38

41

39

import SocketServer as socketserver

42

try:

43

import SocketServer as socketserver

44

except ImportError:

45

import socketserver

40

46

import socket

41

47

import argparse

42

48

import datetime

43

49

import errno

44

import gnutls.crypto

45

import gnutls.connection

46

import gnutls.errors

47

import gnutls.library.functions

48

import gnutls.library.constants

49

import gnutls.library.types

50

import ConfigParser as configparser

50

try:

51

import ConfigParser as configparser

52

except ImportError:

53

import configparser

51

54

import sys

52

55

import re

53

56

import os

62

65

import struct

63

66

import fcntl

64

67

import functools

65

import cPickle as pickle

68

try:

69

import cPickle as pickle

70

except ImportError:

71

import pickle

66

72

import multiprocessing

67

73

import types

68

74

import binascii

69

75

import tempfile

70

76

import itertools

71

77

import collections

78

import codecs

72

79

73

80

import dbus

74

81

import dbus.service

75

import gobject

76

import avahi

82

from gi.repository import GLib

77

83

from dbus.mainloop.glib import DBusGMainLoop

78

84

import ctypes

79

85

import ctypes.util

80

86

import xml.dom.minidom

81

87

import inspect

82

88

89

# Try to find the value of SO_BINDTODEVICE:

83

90

try:

91

# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and

92

# newer, and it is also the most natural place for it:

84

93

SO_BINDTODEVICE = socket.SO_BINDTODEVICE

85

94

except AttributeError:

86

95

try:

96

# This is where SO_BINDTODEVICE was up to and including Python

97

# 2.6, and also 3.2:

87

98

from IN import SO_BINDTODEVICE

88

99

except ImportError:

89

SO_BINDTODEVICE = None

100

# In Python 2.7 it seems to have been removed entirely.

101

# Try running the C preprocessor:

102

try:

103

cc = subprocess.Popen(["cc", "--language=c", "-E",

104

"/dev/stdin"],

105

stdin=subprocess.PIPE,

106

stdout=subprocess.PIPE)

107

stdout = cc.communicate(

108

"#include <sys/socket.h>\nSO_BINDTODEVICE\n")[0]

109

SO_BINDTODEVICE = int(stdout.splitlines()[-1])

110

except (OSError, ValueError, IndexError):

111

# No value found

112

SO_BINDTODEVICE = None

90

113

91

114

if sys.version_info.major == 2:

92

115

str = unicode

93

116

94

version = "1.6.9"

117

version = "1.7.9"

95

118

stored_state_file = "clients.pickle"

96

119

97

120

logger = logging.getLogger()

112

135

return interface_index

113

136

114

137

138

def copy_function(func):

139

"""Make a copy of a function"""

140

if sys.version_info.major == 2:

141

return types.FunctionType(func.func_code,

142

func.func_globals,

143

func.func_name,

144

func.func_defaults,

145

func.func_closure)

146

else:

147

return types.FunctionType(func.__code__,

148

func.__globals__,

149

func.__name__,

150

func.__defaults__,

151

func.__closure__)

152

153

115

154

def initlogger(debug, level=logging.WARNING):

116

155

"""init logger and add loglevel"""

117

156

144

183

145

184

def __init__(self):

146

185

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

186

self.gpg = "gpg"

187

try:

188

output = subprocess.check_output(["gpgconf"])

189

for line in output.splitlines():

190

name, text, path = line.split(b":")

191

if name == "gpg":

192

self.gpg = path

193

break

194

except OSError as e:

195

if e.errno != errno.ENOENT:

196

raise

147

197

self.gnupgargs = ['--batch',

148

'--home', self.tempdir,

198

'--homedir', self.tempdir,

149

199

'--force-mdc',

150

'--quiet',

151

'--no-use-agent']

200

'--quiet']

201

# Only GPG version 1 has the --no-use-agent option.

202

if self.gpg == "gpg" or self.gpg.endswith("/gpg"):

203

self.gnupgargs.append("--no-use-agent")

152

204

153

205

def __enter__(self):

154

206

return self

190

242

dir=self.tempdir) as passfile:

191

243

passfile.write(passphrase)

192

244

passfile.flush()

193

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

245

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

194

246

'--passphrase-file',

195

247

passfile.name]

196

248

+ self.gnupgargs,

208

260

dir = self.tempdir) as passfile:

209

261

passfile.write(passphrase)

210

262

passfile.flush()

211

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

263

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

212

264

'--passphrase-file',

213

265

passfile.name]

214

266

+ self.gnupgargs,

220

272

raise PGPError(err)

221

273

return decrypted_plaintext

222

274

275

# Pretend that we have an Avahi module

276

class Avahi(object):

277

"""This isn't so much a class as it is a module-like namespace.

278

It is instantiated once, and simulates having an Avahi module."""

279

IF_UNSPEC = -1 # avahi-common/address.h

280

PROTO_UNSPEC = -1 # avahi-common/address.h

281

PROTO_INET = 0 # avahi-common/address.h

282

PROTO_INET6 = 1 # avahi-common/address.h

283

DBUS_NAME = "org.freedesktop.Avahi"

284

DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"

285

DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"

286

DBUS_PATH_SERVER = "/"

287

def string_array_to_txt_array(self, t):

288

return dbus.Array((dbus.ByteArray(s.encode("utf-8"))

289

for s in t), signature="ay")

290

ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h

291

ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h

292

ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h

293

SERVER_INVALID = 0 # avahi-common/defs.h

294

SERVER_REGISTERING = 1 # avahi-common/defs.h

295

SERVER_RUNNING = 2 # avahi-common/defs.h

296

SERVER_COLLISION = 3 # avahi-common/defs.h

297

SERVER_FAILURE = 4 # avahi-common/defs.h

298

avahi = Avahi()

223

299

224

300

class AvahiError(Exception):

225

301

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

382

458

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

383

459

self.cleanup()

384

460

elif state == avahi.SERVER_RUNNING:

385

self.add()

461

try:

462

self.add()

463

except dbus.exceptions.DBusException as error:

464

if (error.get_dbus_name()

465

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

466

logger.info("Local Zeroconf service name"

467

" collision.")

468

return self.rename(remove=False)

469

else:

470

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

471

self.cleanup()

472

os._exit(1)

386

473

else:

387

474

if error is None:

388

475

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

411

498

.format(self.name)))

412

499

return ret

413

500

501

# Pretend that we have a GnuTLS module

502

class GnuTLS(object):

503

"""This isn't so much a class as it is a module-like namespace.

504

It is instantiated once, and simulates having a GnuTLS module."""

505

506

_library = ctypes.cdll.LoadLibrary(

507

ctypes.util.find_library("gnutls"))

508

_need_version = b"3.3.0"

509

def __init__(self):

510

# Need to use class name "GnuTLS" here, since this method is

511

# called before the assignment to the "gnutls" global variable

512

# happens.

513

if GnuTLS.check_version(self._need_version) is None:

514

raise GnuTLS.Error("Needs GnuTLS {} or later"

515

.format(self._need_version))

516

517

# Unless otherwise indicated, the constants and types below are

518

# all from the gnutls/gnutls.h C header file.

519

520

# Constants

521

E_SUCCESS = 0

522

E_INTERRUPTED = -52

523

E_AGAIN = -28

524

CRT_OPENPGP = 2

525

CLIENT = 2

526

SHUT_RDWR = 0

527

CRD_CERTIFICATE = 1

528

E_NO_CERTIFICATE_FOUND = -49

529

OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h

530

531

# Types

532

class session_int(ctypes.Structure):

533

_fields_ = []

534

session_t = ctypes.POINTER(session_int)

535

class certificate_credentials_st(ctypes.Structure):

536

_fields_ = []

537

certificate_credentials_t = ctypes.POINTER(

538

certificate_credentials_st)

539

certificate_type_t = ctypes.c_int

540

class datum_t(ctypes.Structure):

541

_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),

542

('size', ctypes.c_uint)]

543

class openpgp_crt_int(ctypes.Structure):

544

_fields_ = []

545

openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)

546

openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h

547

log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)

548

credentials_type_t = ctypes.c_int

549

transport_ptr_t = ctypes.c_void_p

550

close_request_t = ctypes.c_int

551

552

# Exceptions

553

class Error(Exception):

554

# We need to use the class name "GnuTLS" here, since this

555

# exception might be raised from within GnuTLS.__init__,

556

# which is called before the assignment to the "gnutls"

557

# global variable has happened.

558

def __init__(self, message = None, code = None, args=()):

559

# Default usage is by a message string, but if a return

560

# code is passed, convert it to a string with

561

# gnutls.strerror()

562

self.code = code

563

if message is None and code is not None:

564

message = GnuTLS.strerror(code)

565

return super(GnuTLS.Error, self).__init__(

566

message, *args)

567

568

class CertificateSecurityError(Error):

569

pass

570

571

# Classes

572

class Credentials(object):

573

def __init__(self):

574

self._c_object = gnutls.certificate_credentials_t()

575

gnutls.certificate_allocate_credentials(

576

ctypes.byref(self._c_object))

577

self.type = gnutls.CRD_CERTIFICATE

578

579

def __del__(self):

580

gnutls.certificate_free_credentials(self._c_object)

581

582

class ClientSession(object):

583

def __init__(self, socket, credentials = None):

584

self._c_object = gnutls.session_t()

585

gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)

586

gnutls.set_default_priority(self._c_object)

587

gnutls.transport_set_ptr(self._c_object, socket.fileno())

588

gnutls.handshake_set_private_extensions(self._c_object,

589

True)

590

self.socket = socket

591

if credentials is None:

592

credentials = gnutls.Credentials()

593

gnutls.credentials_set(self._c_object, credentials.type,

594

ctypes.cast(credentials._c_object,

595

ctypes.c_void_p))

596

self.credentials = credentials

597

598

def __del__(self):

599

gnutls.deinit(self._c_object)

600

601

def handshake(self):

602

return gnutls.handshake(self._c_object)

603

604

def send(self, data):

605

data = bytes(data)

606

data_len = len(data)

607

while data_len > 0:

608

data_len -= gnutls.record_send(self._c_object,

609

data[-data_len:],

610

data_len)

611

612

def bye(self):

613

return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)

614

615

# Error handling functions

616

def _error_code(result):

617

"""A function to raise exceptions on errors, suitable

618

for the 'restype' attribute on ctypes functions"""

619

if result >= 0:

620

return result

621

if result == gnutls.E_NO_CERTIFICATE_FOUND:

622

raise gnutls.CertificateSecurityError(code = result)

623

raise gnutls.Error(code = result)

624

625

def _retry_on_error(result, func, arguments):

626

"""A function to retry on some errors, suitable

627

for the 'errcheck' attribute on ctypes functions"""

628

while result < 0:

629

if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):

630

return _error_code(result)

631

result = func(*arguments)

632

return result

633

634

# Unless otherwise indicated, the function declarations below are

635

# all from the gnutls/gnutls.h C header file.

636

637

# Functions

638

priority_set_direct = _library.gnutls_priority_set_direct

639

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

640

ctypes.POINTER(ctypes.c_char_p)]

641

priority_set_direct.restype = _error_code

642

643

init = _library.gnutls_init

644

init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]

645

init.restype = _error_code

646

647

set_default_priority = _library.gnutls_set_default_priority

648

set_default_priority.argtypes = [session_t]

649

set_default_priority.restype = _error_code

650

651

record_send = _library.gnutls_record_send

652

record_send.argtypes = [session_t, ctypes.c_void_p,

653

ctypes.c_size_t]

654

record_send.restype = ctypes.c_ssize_t

655

record_send.errcheck = _retry_on_error

656

657

certificate_allocate_credentials = (

658

_library.gnutls_certificate_allocate_credentials)

659

certificate_allocate_credentials.argtypes = [

660

ctypes.POINTER(certificate_credentials_t)]

661

certificate_allocate_credentials.restype = _error_code

662

663

certificate_free_credentials = (

664

_library.gnutls_certificate_free_credentials)

665

certificate_free_credentials.argtypes = [certificate_credentials_t]

666

certificate_free_credentials.restype = None

667

668

handshake_set_private_extensions = (

669

_library.gnutls_handshake_set_private_extensions)

670

handshake_set_private_extensions.argtypes = [session_t,

671

ctypes.c_int]

672

handshake_set_private_extensions.restype = None

673

674

credentials_set = _library.gnutls_credentials_set

675

credentials_set.argtypes = [session_t, credentials_type_t,

676

ctypes.c_void_p]

677

credentials_set.restype = _error_code

678

679

strerror = _library.gnutls_strerror

680

strerror.argtypes = [ctypes.c_int]

681

strerror.restype = ctypes.c_char_p

682

683

certificate_type_get = _library.gnutls_certificate_type_get

684

certificate_type_get.argtypes = [session_t]

685

certificate_type_get.restype = _error_code

686

687

certificate_get_peers = _library.gnutls_certificate_get_peers

688

certificate_get_peers.argtypes = [session_t,

689

ctypes.POINTER(ctypes.c_uint)]

690

certificate_get_peers.restype = ctypes.POINTER(datum_t)

691

692

global_set_log_level = _library.gnutls_global_set_log_level

693

global_set_log_level.argtypes = [ctypes.c_int]

694

global_set_log_level.restype = None

695

696

global_set_log_function = _library.gnutls_global_set_log_function

697

global_set_log_function.argtypes = [log_func]

698

global_set_log_function.restype = None

699

700

deinit = _library.gnutls_deinit

701

deinit.argtypes = [session_t]

702

deinit.restype = None

703

704

handshake = _library.gnutls_handshake

705

handshake.argtypes = [session_t]

706

handshake.restype = _error_code

707

handshake.errcheck = _retry_on_error

708

709

transport_set_ptr = _library.gnutls_transport_set_ptr

710

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

711

transport_set_ptr.restype = None

712

713

bye = _library.gnutls_bye

714

bye.argtypes = [session_t, close_request_t]

715

bye.restype = _error_code

716

bye.errcheck = _retry_on_error

717

718

check_version = _library.gnutls_check_version

719

check_version.argtypes = [ctypes.c_char_p]

720

check_version.restype = ctypes.c_char_p

721

722

# All the function declarations below are from gnutls/openpgp.h

723

724

openpgp_crt_init = _library.gnutls_openpgp_crt_init

725

openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]

726

openpgp_crt_init.restype = _error_code

727

728

openpgp_crt_import = _library.gnutls_openpgp_crt_import

729

openpgp_crt_import.argtypes = [openpgp_crt_t,

730

ctypes.POINTER(datum_t),

731

openpgp_crt_fmt_t]

732

openpgp_crt_import.restype = _error_code

733

734

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

735

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

736

ctypes.POINTER(ctypes.c_uint)]

737

openpgp_crt_verify_self.restype = _error_code

738

739

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

740

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

741

openpgp_crt_deinit.restype = None

742

743

openpgp_crt_get_fingerprint = (

744

_library.gnutls_openpgp_crt_get_fingerprint)

745

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

746

ctypes.c_void_p,

747

ctypes.POINTER(

748

ctypes.c_size_t)]

749

openpgp_crt_get_fingerprint.restype = _error_code

750

751

# Remove non-public functions

752

del _error_code, _retry_on_error

753

# Create the global "gnutls" object, simulating a module

754

gnutls = GnuTLS()

755

756

def call_pipe(connection, # : multiprocessing.Connection

757

func, *args, **kwargs):

758

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

759

760

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

761

return value on the provided multiprocessing.Connection.

762

"""

763

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

764

connection.close()

414

765

415

766

class Client(object):

416

767

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

422

773

checker: subprocess.Popen(); a running checker process used

423

774

to see if the client lives.

424

775

'None' if no process is running.

425

checker_callback_tag: a gobject event source tag, or None

776

checker_callback_tag: a GLib event source tag, or None

426

777

checker_command: string; External command which is run to check

427

778

if client lives. %() expansions are done at

428

779

runtime with vars(self) as dict, so that for

429

780

instance %(name)s can be used in the command.

430

checker_initiator_tag: a gobject event source tag, or None

781

checker_initiator_tag: a GLib event source tag, or None

431

782

created: datetime.datetime(); (UTC) object creation

432

783

client_structure: Object describing what attributes a client has

433

784

and is used for storing the client at exit

434

785

current_checker_command: string; current running checker_command

435

disable_initiator_tag: a gobject event source tag, or None

786

disable_initiator_tag: a GLib event source tag, or None

436

787

enabled: bool()

437

788

fingerprint: string (40 or 32 hexadecimal digits); used to

438

789

uniquely identify the client

443

794

last_checker_status: integer between 0 and 255 reflecting exit

444

795

status of last checker. -1 reflects crashed

445

796

checker, -2 means no checker completed yet.

797

last_checker_signal: The signal which killed the last checker, if

798

last_checker_status is -1

446

799

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

447

800

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

448

801

D-Bus identifiers

499

852

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

500

853

.replace(" ", ""))

501

854

if "secret" in section:

502

client["secret"] = section["secret"].decode("base64")

855

client["secret"] = codecs.decode(section["secret"]

856

.encode("utf-8"),

857

"base64")

503

858

elif "secfile" in section:

504

859

with open(os.path.expanduser(os.path.expandvars

505

860

(section["secfile"])),

558

913

self.changedstate = multiprocessing_manager.Condition(

559

914

multiprocessing_manager.Lock())

560

915

self.client_structure = [attr

561

for attr in self.__dict__.iterkeys()

916

for attr in self.__dict__.keys()

562

917

if not attr.startswith("_")]

563

918

self.client_structure.append("client_structure")

564

919

590

945

if not quiet:

591

946

logger.info("Disabling client %s", self.name)

592

947

if getattr(self, "disable_initiator_tag", None) is not None:

593

gobject.source_remove(self.disable_initiator_tag)

948

GLib.source_remove(self.disable_initiator_tag)

594

949

self.disable_initiator_tag = None

595

950

self.expires = None

596

951

if getattr(self, "checker_initiator_tag", None) is not None:

597

gobject.source_remove(self.checker_initiator_tag)

952

GLib.source_remove(self.checker_initiator_tag)

598

953

self.checker_initiator_tag = None

599

954

self.stop_checker()

600

955

self.enabled = False

601

956

if not quiet:

602

957

self.send_changedstate()

603

# Do not run this again if called by a gobject.timeout_add

958

# Do not run this again if called by a GLib.timeout_add

604

959

return False

605

960

606

961

def __del__(self):

610

965

# Schedule a new checker to be started an 'interval' from now,

611

966

# and every interval from then on.

612

967

if self.checker_initiator_tag is not None:

613

gobject.source_remove(self.checker_initiator_tag)

614

self.checker_initiator_tag = gobject.timeout_add(

968

GLib.source_remove(self.checker_initiator_tag)

969

self.checker_initiator_tag = GLib.timeout_add(

615

970

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

616

971

self.start_checker)

617

972

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

618

973

if self.disable_initiator_tag is not None:

619

gobject.source_remove(self.disable_initiator_tag)

620

self.disable_initiator_tag = gobject.timeout_add(

974

GLib.source_remove(self.disable_initiator_tag)

975

self.disable_initiator_tag = GLib.timeout_add(

621

976

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

622

977

# Also start a new checker *right now*.

623

978

self.start_checker()

624

979

625

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

980

def checker_callback(self, source, condition, connection,

981

command):

626

982

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

627

983

self.checker_callback_tag = None

628

984

self.checker = None

629

if os.WIFEXITED(condition):

630

self.last_checker_status = os.WEXITSTATUS(condition)

985

# Read return code from connection (see call_pipe)

986

returncode = connection.recv()

987

connection.close()

988

989

if returncode >= 0:

990

self.last_checker_status = returncode

991

self.last_checker_signal = None

631

992

if self.last_checker_status == 0:

632

993

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

633

994

vars(self))

636

997

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

637

998

else:

638

999

self.last_checker_status = -1

1000

self.last_checker_signal = -returncode

639

1001

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

640

1002

vars(self))

1003

return False

641

1004

642

1005

def checked_ok(self):

643

1006

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

644

1007

self.last_checked_ok = datetime.datetime.utcnow()

645

1008

self.last_checker_status = 0

1009

self.last_checker_signal = None

646

1010

self.bump_timeout()

647

1011

648

1012

def bump_timeout(self, timeout=None):

650

1014

if timeout is None:

651

1015

timeout = self.timeout

652

1016

if self.disable_initiator_tag is not None:

653

gobject.source_remove(self.disable_initiator_tag)

1017

GLib.source_remove(self.disable_initiator_tag)

654

1018

self.disable_initiator_tag = None

655

1019

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

656

self.disable_initiator_tag = gobject.timeout_add(

1020

self.disable_initiator_tag = GLib.timeout_add(

657

1021

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

658

1022

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

659

1023

674

1038

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

675

1039

# should be.

676

1040

677

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

678

try:

679

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

680

except AttributeError:

681

pass

682

except OSError as error:

683

if error.errno != errno.ECHILD:

684

raise

685

else:

686

if pid:

687

logger.warning("Checker was a zombie")

688

gobject.source_remove(self.checker_callback_tag)

689

self.checker_callback(pid, status,

690

self.current_checker_command)

1041

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

1042

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

1043

self.checker.join()

1044

self.checker = None

691

1045

# Start a new checker if needed

692

1046

if self.checker is None:

693

1047

# Escape attributes for the shell

702

1056

exc_info=error)

703

1057

return True # Try again later

704

1058

self.current_checker_command = command

705

try:

706

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

707

self.name)

708

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

709

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

710

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

711

# always replaced by /dev/null.)

712

# The exception is when not debugging but nevertheless

713

# running in the foreground; use the previously

714

# created wnull.

715

popen_args = {}

716

if (not self.server_settings["debug"]

717

and self.server_settings["foreground"]):

718

popen_args.update({"stdout": wnull,

719

"stderr": wnull })

720

self.checker = subprocess.Popen(command,

721

close_fds=True,

722

shell=True,

723

cwd="/",

724

**popen_args)

725

except OSError as error:

726

logger.error("Failed to start subprocess",

727

exc_info=error)

728

return True

729

self.checker_callback_tag = gobject.child_watch_add(

730

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

731

# The checker may have completed before the gobject

732

# watch was added. Check for this.

733

try:

734

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

735

except OSError as error:

736

if error.errno == errno.ECHILD:

737

# This should never happen

738

logger.error("Child process vanished",

739

exc_info=error)

740

return True

741

raise

742

if pid:

743

gobject.source_remove(self.checker_callback_tag)

744

self.checker_callback(pid, status, command)

745

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

1059

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

1060

self.name)

1061

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

1062

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

1063

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

1064

# always replaced by /dev/null.)

1065

# The exception is when not debugging but nevertheless

1066

# running in the foreground; use the previously

1067

# created wnull.

1068

popen_args = { "close_fds": True,

1069

"shell": True,

1070

"cwd": "/" }

1071

if (not self.server_settings["debug"]

1072

and self.server_settings["foreground"]):

1073

popen_args.update({"stdout": wnull,

1074

"stderr": wnull })

1075

pipe = multiprocessing.Pipe(duplex = False)

1076

self.checker = multiprocessing.Process(

1077

target = call_pipe,

1078

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

1079

kwargs = popen_args)

1080

self.checker.start()

1081

self.checker_callback_tag = GLib.io_add_watch(

1082

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

1083

self.checker_callback, pipe[0], command)

1084

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

746

1085

return True

747

1086

748

1087

def stop_checker(self):

749

1088

"""Force the checker process, if any, to stop."""

750

1089

if self.checker_callback_tag:

751

gobject.source_remove(self.checker_callback_tag)

1090

GLib.source_remove(self.checker_callback_tag)

752

1091

self.checker_callback_tag = None

753

1092

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

754

1093

return

755

1094

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

756

try:

757

self.checker.terminate()

758

#time.sleep(0.5)

759

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

760

# self.checker.kill()

761

except OSError as error:

762

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

763

raise

1095

self.checker.terminate()

764

1096

self.checker = None

765

1097

766

1098

830

1162

access="r")

831

1163

def Property_dbus_property(self):

832

1164

return dbus.Boolean(False)

1165

1166

See also the DBusObjectWithAnnotations class.

833

1167

"""

834

1168

835

1169

def decorator(func):

857

1191

pass

858

1192

859

1193

860

class DBusObjectWithProperties(dbus.service.Object):

861

"""A D-Bus object with properties.

1194

class DBusObjectWithAnnotations(dbus.service.Object):

1195

"""A D-Bus object with annotations.

862

1196

863

Classes inheriting from this can use the dbus_service_property

864

decorator to expose methods as D-Bus properties. It exposes the

865

standard Get(), Set(), and GetAll() methods on the D-Bus.

1197

Classes inheriting from this can use the dbus_annotations

1198

decorator to add annotations to methods or signals.

866

1199

"""

867

1200

868

1201

@staticmethod

884

1217

for name, athing in

885

1218

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

886

1219

1220

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1221

out_signature = "s",

1222

path_keyword = 'object_path',

1223

connection_keyword = 'connection')

1224

def Introspect(self, object_path, connection):

1225

"""Overloading of standard D-Bus method.

1226

1227

Inserts annotation tags on methods and signals.

1228

"""

1229

xmlstring = dbus.service.Object.Introspect(self, object_path,

1230

connection)

1231

try:

1232

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

1233

1234

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

1235

# Add annotation tags

1236

for typ in ("method", "signal"):

1237

for tag in if_tag.getElementsByTagName(typ):

1238

annots = dict()

1239

for name, prop in (self.

1240

_get_all_dbus_things(typ)):

1241

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

1242

and prop._dbus_interface

1243

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

1244

annots.update(getattr(

1245

prop, "_dbus_annotations", {}))

1246

for name, value in annots.items():

1247

ann_tag = document.createElement(

1248

"annotation")

1249

ann_tag.setAttribute("name", name)

1250

ann_tag.setAttribute("value", value)

1251

tag.appendChild(ann_tag)

1252

# Add interface annotation tags

1253

for annotation, value in dict(

1254

itertools.chain.from_iterable(

1255

annotations().items()

1256

for name, annotations

1257

in self._get_all_dbus_things("interface")

1258

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

1259

)).items():

1260

ann_tag = document.createElement("annotation")

1261

ann_tag.setAttribute("name", annotation)

1262

ann_tag.setAttribute("value", value)

1263

if_tag.appendChild(ann_tag)

1264

# Fix argument name for the Introspect method itself

1265

if (if_tag.getAttribute("name")

1266

== dbus.INTROSPECTABLE_IFACE):

1267

for cn in if_tag.getElementsByTagName("method"):

1268

if cn.getAttribute("name") == "Introspect":

1269

for arg in cn.getElementsByTagName("arg"):

1270

if (arg.getAttribute("direction")

1271

== "out"):

1272

arg.setAttribute("name",

1273

"xml_data")

1274

xmlstring = document.toxml("utf-8")

1275

document.unlink()

1276

except (AttributeError, xml.dom.DOMException,

1277

xml.parsers.expat.ExpatError) as error:

1278

logger.error("Failed to override Introspection method",

1279

exc_info=error)

1280

return xmlstring

1281

1282

1283

class DBusObjectWithProperties(DBusObjectWithAnnotations):

1284

"""A D-Bus object with properties.

1285

1286

Classes inheriting from this can use the dbus_service_property

1287

decorator to expose methods as D-Bus properties. It exposes the

1288

standard Get(), Set(), and GetAll() methods on the D-Bus.

1289

"""

1290

887

1291

def _get_dbus_property(self, interface_name, property_name):

888

1292

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

889

1293

property with the specified name and interface.

899

1303

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

900

1304

self.dbus_object_path, interface_name, property_name))

901

1305

1306

@classmethod

1307

def _get_all_interface_names(cls):

1308

"""Get a sequence of all interfaces supported by an object"""

1309

return (name for name in set(getattr(getattr(x, attr),

1310

"_dbus_interface", None)

1311

for x in (inspect.getmro(cls))

1312

for attr in dir(x))

1313

if name is not None)

1314

902

1315

@dbus.service.method(dbus.PROPERTIES_IFACE,

903

1316

in_signature="ss",

904

1317

out_signature="v")

974

1387

975

1388

Inserts property tags and interface annotation tags.

976

1389

"""

977

xmlstring = dbus.service.Object.Introspect(self, object_path,

978

connection)

1390

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1391

object_path,

1392

connection)

979

1393

try:

980

1394

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

981

1395

994

1408

if prop._dbus_interface

995

1409

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

996

1410

if_tag.appendChild(tag)

997

# Add annotation tags

998

for typ in ("method", "signal", "property"):

999

for tag in if_tag.getElementsByTagName(typ):

1000

annots = dict()

1001

for name, prop in (self.

1002

_get_all_dbus_things(typ)):

1003

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

1004

and prop._dbus_interface

1005

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

1006

annots.update(getattr(

1007

prop, "_dbus_annotations", {}))

1008

for name, value in annots.items():

1009

ann_tag = document.createElement(

1010

"annotation")

1011

ann_tag.setAttribute("name", name)

1012

ann_tag.setAttribute("value", value)

1013

tag.appendChild(ann_tag)

1014

# Add interface annotation tags

1015

for annotation, value in dict(

1016

itertools.chain.from_iterable(

1017

annotations().items()

1018

for name, annotations

1019

in self._get_all_dbus_things("interface")

1020

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

1021

)).items():

1022

ann_tag = document.createElement("annotation")

1023

ann_tag.setAttribute("name", annotation)

1024

ann_tag.setAttribute("value", value)

1025

if_tag.appendChild(ann_tag)

1411

# Add annotation tags for properties

1412

for tag in if_tag.getElementsByTagName("property"):

1413

annots = dict()

1414

for name, prop in self._get_all_dbus_things(

1415

"property"):

1416

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

1417

and prop._dbus_interface

1418

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

1419

annots.update(getattr(

1420

prop, "_dbus_annotations", {}))

1421

for name, value in annots.items():

1422

ann_tag = document.createElement(

1423

"annotation")

1424

ann_tag.setAttribute("name", name)

1425

ann_tag.setAttribute("value", value)

1426

tag.appendChild(ann_tag)

1026

1427

# Add the names to the return values for the

1027

1428

# "org.freedesktop.DBus.Properties" methods

1028

1429

if (if_tag.getAttribute("name")

1046

1447

exc_info=error)

1047

1448

return xmlstring

1048

1449

1450

try:

1451

dbus.OBJECT_MANAGER_IFACE

1452

except AttributeError:

1453

dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"

1454

1455

class DBusObjectWithObjectManager(DBusObjectWithAnnotations):

1456

"""A D-Bus object with an ObjectManager.

1457

1458

Classes inheriting from this exposes the standard

1459

GetManagedObjects call and the InterfacesAdded and

1460

InterfacesRemoved signals on the standard

1461

"org.freedesktop.DBus.ObjectManager" interface.

1462

1463

Note: No signals are sent automatically; they must be sent

1464

manually.

1465

"""

1466

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

1467

out_signature = "a{oa{sa{sv}}}")

1468

def GetManagedObjects(self):

1469

"""This function must be overridden"""

1470

raise NotImplementedError()

1471

1472

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,

1473

signature = "oa{sa{sv}}")

1474

def InterfacesAdded(self, object_path, interfaces_and_properties):

1475

pass

1476

1477

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")

1478

def InterfacesRemoved(self, object_path, interfaces):

1479

pass

1480

1481

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1482

out_signature = "s",

1483

path_keyword = 'object_path',

1484

connection_keyword = 'connection')

1485

def Introspect(self, object_path, connection):

1486

"""Overloading of standard D-Bus method.

1487

1488

Override return argument name of GetManagedObjects to be

1489

"objpath_interfaces_and_properties"

1490

"""

1491

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1492

object_path,

1493

connection)

1494

try:

1495

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

1496

1497

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

1498

# Fix argument name for the GetManagedObjects method

1499

if (if_tag.getAttribute("name")

1500

== dbus.OBJECT_MANAGER_IFACE):

1501

for cn in if_tag.getElementsByTagName("method"):

1502

if (cn.getAttribute("name")

1503

== "GetManagedObjects"):

1504

for arg in cn.getElementsByTagName("arg"):

1505

if (arg.getAttribute("direction")

1506

== "out"):

1507

arg.setAttribute(

1508

"name",

1509

"objpath_interfaces"

1510

"_and_properties")

1511

xmlstring = document.toxml("utf-8")

1512

document.unlink()

1513

except (AttributeError, xml.dom.DOMException,

1514

xml.parsers.expat.ExpatError) as error:

1515

logger.error("Failed to override Introspection method",

1516

exc_info = error)

1517

return xmlstring

1049

1518

1050

1519

def datetime_to_dbus(dt, variant_level=0):

1051

1520

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

1100

1569

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

1101

1570

# Extract the original non-method undecorated

1102

1571

# function by black magic

1103

nonmethod_func = (dict(

1104

zip(attribute.func_code.co_freevars,

1105

attribute.__closure__))

1106

["func"].cell_contents)

1572

if sys.version_info.major == 2:

1573

nonmethod_func = (dict(

1574

zip(attribute.func_code.co_freevars,

1575

attribute.__closure__))

1576

["func"].cell_contents)

1577

else:

1578

nonmethod_func = (dict(

1579

zip(attribute.__code__.co_freevars,

1580

attribute.__closure__))

1581

["func"].cell_contents)

1107

1582

# Create a new, but exactly alike, function

1108

1583

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

1109

1584

# with the alternate D-Bus interface name

1585

new_function = copy_function(nonmethod_func)

1110

1586

new_function = (dbus.service.signal(

1111

alt_interface, attribute._dbus_signature)

1112

(types.FunctionType(

1113

nonmethod_func.func_code,

1114

nonmethod_func.func_globals,

1115

nonmethod_func.func_name,

1116

nonmethod_func.func_defaults,

1117

nonmethod_func.func_closure)))

1587

alt_interface,

1588

attribute._dbus_signature)(new_function))

1118

1589

# Copy annotations, if any

1119

1590

try:

1120

1591

new_function._dbus_annotations = dict(

1130

1601

func1 and func2 to the "call_both" function

1131

1602

outside of its arguments"""

1132

1603

1604

@functools.wraps(func2)

1133

1605

def call_both(*args, **kwargs):

1134

1606

"""This function will emit two D-Bus

1135

1607

signals by calling func1 and func2"""

1136

1608

func1(*args, **kwargs)

1137

1609

func2(*args, **kwargs)

1610

# Make wrapper function look like a D-Bus signal

1611

for name, attr in inspect.getmembers(func2):

1612

if name.startswith("_dbus_"):

1613

setattr(call_both, name, attr)

1138

1614

1139

1615

return call_both

1140

1616

# Create the "call_both" function and add it to

1151

1627

alt_interface,

1152

1628

attribute._dbus_in_signature,

1153

1629

attribute._dbus_out_signature)

1154

(types.FunctionType(attribute.func_code,

1155

attribute.func_globals,

1156

attribute.func_name,

1157

attribute.func_defaults,

1158

attribute.func_closure)))

1630

(copy_function(attribute)))

1159

1631

# Copy annotations, if any

1160

1632

try:

1161

1633

attr[attrname]._dbus_annotations = dict(

1173

1645

attribute._dbus_access,

1174

1646

attribute._dbus_get_args_options

1175

1647

["byte_arrays"])

1176

(types.FunctionType(

1177

attribute.func_code,

1178

attribute.func_globals,

1179

attribute.func_name,

1180

attribute.func_defaults,

1181

attribute.func_closure)))

1648

(copy_function(attribute)))

1182

1649

# Copy annotations, if any

1183

1650

try:

1184

1651

attr[attrname]._dbus_annotations = dict(

1193

1660

# to the class.

1194

1661

attr[attrname] = (

1195

1662

dbus_interface_annotations(alt_interface)

1196

(types.FunctionType(attribute.func_code,

1197

attribute.func_globals,

1198

attribute.func_name,

1199

attribute.func_defaults,

1200

attribute.func_closure)))

1663

(copy_function(attribute)))

1201

1664

if deprecate:

1202

1665

# Deprecate all alternate interfaces

1203

1666

iname="_AlternateDBusNames_interface_annotation{}"

1216

1679

if interface_names:

1217

1680

# Replace the class with a new subclass of it with

1218

1681

# methods, signals, etc. as created above.

1219

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

1220

(cls, ), attr)

1682

if sys.version_info.major == 2:

1683

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

1684

(cls, ), attr)

1685

else:

1686

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

1687

(cls, ), attr)

1221

1688

return cls

1222

1689

1223

1690

return wrapper

1343

1810

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

1344

1811

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

1345

1812

1346

def checker_callback(self, pid, condition, command,

1347

*args, **kwargs):

1348

self.checker_callback_tag = None

1349

self.checker = None

1350

if os.WIFEXITED(condition):

1351

exitstatus = os.WEXITSTATUS(condition)

1813

def checker_callback(self, source, condition,

1814

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

1815

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

1816

connection, command, *args,

1817

**kwargs)

1818

exitstatus = self.last_checker_status

1819

if exitstatus >= 0:

1352

1820

# Emit D-Bus signal

1353

1821

self.CheckerCompleted(dbus.Int16(exitstatus),

1354

dbus.Int64(condition),

1822

# This is specific to GNU libC

1823

dbus.Int64(exitstatus << 8),

1355

1824

dbus.String(command))

1356

1825

else:

1357

1826

# Emit D-Bus signal

1358

1827

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

1359

dbus.Int64(condition),

1828

dbus.Int64(

1829

# This is specific to GNU libC

1830

(exitstatus << 8)

1831

| self.last_checker_signal),

1360

1832

dbus.String(command))

1361

1362

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

1363

*args, **kwargs)

1833

return ret

1364

1834

1365

1835

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

1366

1836

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

1378

1848

1379

1849

def approve(self, value=True):

1380

1850

self.approved = value

1381

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

1382

* 1000), self._reset_approved)

1851

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

1852

* 1000), self._reset_approved)

1383

1853

self.send_changedstate()

1384

1854

1385

1855

## D-Bus methods, signals & properties

1441

1911

self.checked_ok()

1442

1912

1443

1913

# Enable - method

1914

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

1444

1915

@dbus.service.method(_interface)

1445

1916

def Enable(self):

1446

1917

"D-Bus method"

1447

1918

self.enable()

1448

1919

1449

1920

# StartChecker - method

1921

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

1450

1922

@dbus.service.method(_interface)

1451

1923

def StartChecker(self):

1452

1924

"D-Bus method"

1453

1925

self.start_checker()

1454

1926

1455

1927

# Disable - method

1928

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

1456

1929

@dbus.service.method(_interface)

1457

1930

def Disable(self):

1458

1931

"D-Bus method"

1459

1932

self.disable()

1460

1933

1461

1934

# StopChecker - method

1935

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

1462

1936

@dbus.service.method(_interface)

1463

1937

def StopChecker(self):

1464

1938

self.stop_checker()

1500

1974

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

1501

1975

1502

1976

# Name - property

1977

@dbus_annotations(

1978

{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})

1503

1979

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

1504

1980

def Name_dbus_property(self):

1505

1981

return dbus.String(self.name)

1506

1982

1507

1983

# Fingerprint - property

1984

@dbus_annotations(

1985

{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})

1508

1986

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

1509

1987

def Fingerprint_dbus_property(self):

1510

1988

return dbus.String(self.fingerprint)

1519

1997

self.host = str(value)

1520

1998

1521

1999

# Created - property

2000

@dbus_annotations(

2001

{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})

1522

2002

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

1523

2003

def Created_dbus_property(self):

1524

2004

return datetime_to_dbus(self.created)

1585

2065

if (getattr(self, "disable_initiator_tag", None)

1586

2066

is None):

1587

2067

return

1588

gobject.source_remove(self.disable_initiator_tag)

1589

self.disable_initiator_tag = gobject.timeout_add(

2068

GLib.source_remove(self.disable_initiator_tag)

2069

self.disable_initiator_tag = GLib.timeout_add(

1590

2070

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

1591

2071

self.disable)

1592

2072

1612

2092

return

1613

2093

if self.enabled:

1614

2094

# Reschedule checker run

1615

gobject.source_remove(self.checker_initiator_tag)

1616

self.checker_initiator_tag = gobject.timeout_add(

2095

GLib.source_remove(self.checker_initiator_tag)

2096

self.checker_initiator_tag = GLib.timeout_add(

1617

2097

value, self.start_checker)

1618

2098

self.start_checker() # Start one now, too

1619

2099

1639

2119

self.stop_checker()

1640

2120

1641

2121

# ObjectPath - property

2122

@dbus_annotations(

2123

{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",

2124

"org.freedesktop.DBus.Deprecated": "true"})

1642

2125

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

1643

2126

def ObjectPath_dbus_property(self):

1644

2127

return self.dbus_object_path # is already a dbus.ObjectPath

1645

2128

1646

2129

# Secret = property

2130

@dbus_annotations(

2131

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

2132

"invalidates"})

1647

2133

@dbus_service_property(_interface,

1648

2134

signature="ay",

1649

2135

access="write",

1659

2145

self._pipe = child_pipe

1660

2146

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

1661

2147

if not self._pipe.recv():

1662

raise KeyError()

2148

raise KeyError(fpr)

1663

2149

1664

2150

def __getattribute__(self, name):

1665

2151

if name == '_pipe':

1695

2181

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

1696

2182

self.server.child_pipe.fileno())

1697

2183

1698

session = gnutls.connection.ClientSession(

1699

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

1700

1701

# Note: gnutls.connection.X509Credentials is really a

1702

# generic GnuTLS certificate credentials object so long as

1703

# no X.509 keys are added to it. Therefore, we can use it

1704

# here despite using OpenPGP certificates.

2184

session = gnutls.ClientSession(self.request)

1705

2185

1706

2186

#priority = ':'.join(("NONE", "+VERS-TLS1.1",

1707

2187

# "+AES-256-CBC", "+SHA1",

1711

2191

priority = self.server.gnutls_priority

1712

2192

if priority is None:

1713

2193

priority = "NORMAL"

1714

gnutls.library.functions.gnutls_priority_set_direct(

1715

session._c_object, priority, None)

2194

gnutls.priority_set_direct(session._c_object,

2195

priority.encode("utf-8"),

2196

None)

1716

2197

1717

2198

# Start communication using the Mandos protocol

1718

2199

# Get protocol number

1728

2209

# Start GnuTLS connection

1729

2210

try:

1730

2211

session.handshake()

1731

except gnutls.errors.GNUTLSError as error:

2212

except gnutls.Error as error:

1732

2213

logger.warning("Handshake failed: %s", error)

1733

2214

# Do not run session.bye() here: the session is not

1734

2215

# established. Just abandon the request.

1740

2221

try:

1741

2222

fpr = self.fingerprint(

1742

2223

self.peer_certificate(session))

1743

except (TypeError,

1744

gnutls.errors.GNUTLSError) as error:

2224

except (TypeError, gnutls.Error) as error:

1745

2225

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

1746

2226

return

1747

2227

logger.debug("Fingerprint: %s", fpr)

1805

2285

else:

1806

2286

delay -= time2 - time

1807

2287

1808

sent_size = 0

1809

while sent_size < len(client.secret):

1810

try:

1811

sent = session.send(client.secret[sent_size:])

1812

except gnutls.errors.GNUTLSError as error:

1813

logger.warning("gnutls send failed",

1814

exc_info=error)

1815

return

1816

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

1817

len(client.secret) - (sent_size

1818

+ sent))

1819

sent_size += sent

2288

try:

2289

session.send(client.secret)

2290

except gnutls.Error as error:

2291

logger.warning("gnutls send failed",

2292

exc_info = error)

2293

return

1820

2294

1821

2295

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

1822

2296

# bump the timeout using extended_timeout

1830

2304

client.approvals_pending -= 1

1831

2305

try:

1832

2306

session.bye()

1833

except gnutls.errors.GNUTLSError as error:

2307

except gnutls.Error as error:

1834

2308

logger.warning("GnuTLS bye failed",

1835

2309

exc_info=error)

1836

2310

1838

2312

def peer_certificate(session):

1839

2313

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

1840

2314

# If not an OpenPGP certificate...

1841

if (gnutls.library.functions.gnutls_certificate_type_get(

1842

session._c_object)

1843

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1844

# ...do the normal thing

1845

return session.peer_certificate

2315

if (gnutls.certificate_type_get(session._c_object)

2316

!= gnutls.CRT_OPENPGP):

2317

# ...return invalid data

2318

return b""

1846

2319

list_size = ctypes.c_uint(1)

1847

cert_list = (gnutls.library.functions

1848

.gnutls_certificate_get_peers

2320

cert_list = (gnutls.certificate_get_peers

1849

2321

(session._c_object, ctypes.byref(list_size)))

1850

2322

if not bool(cert_list) and list_size.value != 0:

1851

raise gnutls.errors.GNUTLSError("error getting peer"

1852

" certificate")

2323

raise gnutls.Error("error getting peer certificate")

1853

2324

if list_size.value == 0:

1854

2325

return None

1855

2326

cert = cert_list[0]

1859

2330

def fingerprint(openpgp):

1860

2331

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

1861

2332

# New GnuTLS "datum" with the OpenPGP public key

1862

datum = gnutls.library.types.gnutls_datum_t(

2333

datum = gnutls.datum_t(

1863

2334

ctypes.cast(ctypes.c_char_p(openpgp),

1864

2335

ctypes.POINTER(ctypes.c_ubyte)),

1865

2336

ctypes.c_uint(len(openpgp)))

1866

2337

# New empty GnuTLS certificate

1867

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1868

gnutls.library.functions.gnutls_openpgp_crt_init(

1869

ctypes.byref(crt))

2338

crt = gnutls.openpgp_crt_t()

2339

gnutls.openpgp_crt_init(ctypes.byref(crt))

1870

2340

# Import the OpenPGP public key into the certificate

1871

gnutls.library.functions.gnutls_openpgp_crt_import(

1872

crt, ctypes.byref(datum),

1873

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

2341

gnutls.openpgp_crt_import(crt, ctypes.byref(datum),

2342

gnutls.OPENPGP_FMT_RAW)

1874

2343

# Verify the self signature in the key

1875

2344

crtverify = ctypes.c_uint()

1876

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

1877

crt, 0, ctypes.byref(crtverify))

2345

gnutls.openpgp_crt_verify_self(crt, 0,

2346

ctypes.byref(crtverify))

1878

2347

if crtverify.value != 0:

1879

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1880

raise gnutls.errors.CertificateSecurityError(

1881

"Verify failed")

2348

gnutls.openpgp_crt_deinit(crt)

2349

raise gnutls.CertificateSecurityError("Verify failed")

1882

2350

# New buffer for the fingerprint

1883

2351

buf = ctypes.create_string_buffer(20)

1884

2352

buf_len = ctypes.c_size_t()

1885

2353

# Get the fingerprint from the certificate into the buffer

1886

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

1887

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

2354

gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),

2355

ctypes.byref(buf_len))

1888

2356

# Deinit the certificate

1889

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

2357

gnutls.openpgp_crt_deinit(crt)

1890

2358

# Convert the buffer to a Python bytestring

1891

2359

fpr = ctypes.string_at(buf, buf_len.value)

1892

2360

# Convert the bytestring to hexadecimal notation

1985

2453

"""This overrides the normal server_bind() function

1986

2454

to bind to an interface if one was specified, and also NOT to

1987

2455

bind to an address or port if they were not specified."""

2456

global SO_BINDTODEVICE

1988

2457

if self.interface is not None:

1989

2458

if SO_BINDTODEVICE is None:

1990

logger.error("SO_BINDTODEVICE does not exist;"

1991

" cannot bind to interface %s",

1992

self.interface)

1993

else:

1994

try:

1995

self.socket.setsockopt(

1996

socket.SOL_SOCKET, SO_BINDTODEVICE,

1997

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

1998

except socket.error as error:

1999

if error.errno == errno.EPERM:

2000

logger.error("No permission to bind to"

2001

" interface %s", self.interface)

2002

elif error.errno == errno.ENOPROTOOPT:

2003

logger.error("SO_BINDTODEVICE not available;"

2004

" cannot bind to interface %s",

2005

self.interface)

2006

elif error.errno == errno.ENODEV:

2007

logger.error("Interface %s does not exist,"

2008

" cannot bind", self.interface)

2009

else:

2010

raise

2459

# Fall back to a hard-coded value which seems to be

2460

# common enough.

2461

logger.warning("SO_BINDTODEVICE not found, trying 25")

2462

SO_BINDTODEVICE = 25

2463

try:

2464

self.socket.setsockopt(

2465

socket.SOL_SOCKET, SO_BINDTODEVICE,

2466

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

2467

except socket.error as error:

2468

if error.errno == errno.EPERM:

2469

logger.error("No permission to bind to"

2470

" interface %s", self.interface)

2471

elif error.errno == errno.ENOPROTOOPT:

2472

logger.error("SO_BINDTODEVICE not available;"

2473

" cannot bind to interface %s",

2474

self.interface)

2475

elif error.errno == errno.ENODEV:

2476

logger.error("Interface %s does not exist,"

2477

" cannot bind", self.interface)

2478

else:

2479

raise

2011

2480

# Only bind(2) the socket if we really need to.

2012

2481

if self.server_address[0] or self.server_address[1]:

2013

2482

if not self.server_address[0]:

2036

2505

gnutls_priority GnuTLS priority string

2037

2506

use_dbus: Boolean; to emit D-Bus signals or not

2038

2507

2039

Assumes a gobject.MainLoop event loop.

2508

Assumes a GLib.MainLoop event loop.

2040

2509

"""

2041

2510

2042

2511

def __init__(self, server_address, RequestHandlerClass,

2067

2536

2068

2537

def add_pipe(self, parent_pipe, proc):

2069

2538

# Call "handle_ipc" for both data and EOF events

2070

gobject.io_add_watch(

2539

GLib.io_add_watch(

2071

2540

parent_pipe.fileno(),

2072

gobject.IO_IN | gobject.IO_HUP,

2541

GLib.IO_IN | GLib.IO_HUP,

2073

2542

functools.partial(self.handle_ipc,

2074

2543

parent_pipe = parent_pipe,

2075

2544

proc = proc))

2079

2548

proc = None,

2080

2549

client_object=None):

2081

2550

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

2082

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

2551

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

2083

2552

# Wait for other process to exit

2084

2553

proc.join()

2085

2554

return False

2092

2561

fpr = request[1]

2093

2562

address = request[2]

2094

2563

2095

for c in self.clients.itervalues():

2564

for c in self.clients.values():

2096

2565

if c.fingerprint == fpr:

2097

2566

client = c

2098

2567

break

2106

2575

parent_pipe.send(False)

2107

2576

return False

2108

2577

2109

gobject.io_add_watch(

2578

GLib.io_add_watch(

2110

2579

parent_pipe.fileno(),

2111

gobject.IO_IN | gobject.IO_HUP,

2580

GLib.IO_IN | GLib.IO_HUP,

2112

2581

functools.partial(self.handle_ipc,

2113

2582

parent_pipe = parent_pipe,

2114

2583

proc = proc,

2128

2597

2129

2598

if command == 'getattr':

2130

2599

attrname = request[1]

2131

if callable(client_object.__getattribute__(attrname)):

2600

if isinstance(client_object.__getattribute__(attrname),

2601

collections.Callable):

2132

2602

parent_pipe.send(('function', ))

2133

2603

else:

2134

2604

parent_pipe.send((

2169

2639

# avoid excessive use of external libraries.

2170

2640

2171

2641

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

2172

Token = collections.namedtuple("Token",

2173

("regexp", # To match token; if

2174

# "value" is not None,

2175

# must have a "group"

2176

# containing digits

2177

"value", # datetime.timedelta or

2178

# None

2179

"followers")) # Tokens valid after

2180

# this token

2181

2642

Token = collections.namedtuple("Token", (

2182

2643

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

2183

2644

# a "group" containing digits

2218

2679

# Define starting values

2219

2680

value = datetime.timedelta() # Value so far

2220

2681

found_token = None

2221

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

2682

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

2222

2683

s = duration # String left to parse

2223

2684

# Loop until end token is found

2224

2685

while found_token is not token_end:

2241

2702

break

2242

2703

else:

2243

2704

# No currently valid tokens were found

2244

raise ValueError("Invalid RFC 3339 duration")

2705

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

2706

.format(duration))

2245

2707

# End token found

2246

2708

return value

2247

2709

2380

2842

"debug": "False",

2381

2843

"priority":

2382

2844

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

2383

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

2845

":+SIGN-DSA-SHA256",

2384

2846

"servicename": "Mandos",

2385

2847

"use_dbus": "True",

2386

2848

"use_ipv6": "True",

2498

2960

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

2499

2961

pidfile = None

2500

2962

try:

2501

pidfile = open(pidfilename, "w")

2963

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

2502

2964

except IOError as e:

2503

2965

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

2504

2966

exc_info=e)

2505

2967

2506

for name in ("_mandos", "mandos", "nobody"):

2968

for name, group in (("_mandos", "_mandos"),

2969

("mandos", "mandos"),

2970

("nobody", "nogroup")):

2507

2971

try:

2508

2972

uid = pwd.getpwnam(name).pw_uid

2509

gid = pwd.getpwnam(name).pw_gid

2973

gid = pwd.getpwnam(group).pw_gid

2510

2974

break

2511

2975

except KeyError:

2512

2976

continue

2516

2980

try:

2517

2981

os.setgid(gid)

2518

2982

os.setuid(uid)

2983

if debug:

2984

logger.debug("Did setuid/setgid to {}:{}".format(uid,

2985

gid))

2519

2986

except OSError as error:

2987

logger.warning("Failed to setuid/setgid to {}:{}: {}"

2988

.format(uid, gid, os.strerror(error.errno)))

2520

2989

if error.errno != errno.EPERM:

2521

2990

raise

2522

2991

2525

2994

2526

2995

# "Use a log level over 10 to enable all debugging options."

2527

2996

# - GnuTLS manual

2528

gnutls.library.functions.gnutls_global_set_log_level(11)

2997

gnutls.global_set_log_level(11)

2529

2998

2530

@gnutls.library.types.gnutls_log_func

2999

@gnutls.log_func

2531

3000

def debug_gnutls(level, string):

2532

3001

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

2533

3002

2534

gnutls.library.functions.gnutls_global_set_log_function(

2535

debug_gnutls)

3003

gnutls.global_set_log_function(debug_gnutls)

2536

3004

2537

3005

# Redirect stdin so all checkers get /dev/null

2538

3006

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

2545

3013

# Close all input and output, do double fork, etc.

2546

3014

daemon()

2547

3015

2548

# multiprocessing will use threads, so before we use gobject we

2549

# need to inform gobject that threads will be used.

2550

gobject.threads_init()

3016

# multiprocessing will use threads, so before we use GLib we need

3017

# to inform GLib that threads will be used.

3018

GLib.threads_init()

2551

3019

2552

3020

global main_loop

2553

3021

# From the Avahi example code

2554

3022

DBusGMainLoop(set_as_default=True)

2555

main_loop = gobject.MainLoop()

3023

main_loop = GLib.MainLoop()

2556

3024

bus = dbus.SystemBus()

2557

3025

# End of Avahi example code

2558

3026

if use_dbus:

2563

3031

old_bus_name = dbus.service.BusName(

2564

3032

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

2565

3033

do_not_queue=True)

2566

except dbus.exceptions.NameExistsException as e:

3034

except dbus.exceptions.DBusException as e:

2567

3035

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

2568

3036

use_dbus = False

2569

3037

server_settings["use_dbus"] = False

2602

3070

if server_settings["restore"]:

2603

3071

try:

2604

3072

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

2605

clients_data, old_client_settings = pickle.load(

2606

stored_state)

3073

if sys.version_info.major == 2:

3074

clients_data, old_client_settings = pickle.load(

3075

stored_state)

3076

else:

3077

bytes_clients_data, bytes_old_client_settings = (

3078

pickle.load(stored_state, encoding = "bytes"))

3079

### Fix bytes to strings

3080

## clients_data

3081

# .keys()

3082

clients_data = { (key.decode("utf-8")

3083

if isinstance(key, bytes)

3084

else key): value

3085

for key, value in

3086

bytes_clients_data.items() }

3087

del bytes_clients_data

3088

for key in clients_data:

3089

value = { (k.decode("utf-8")

3090

if isinstance(k, bytes) else k): v

3091

for k, v in

3092

clients_data[key].items() }

3093

clients_data[key] = value

3094

# .client_structure

3095

value["client_structure"] = [

3096

(s.decode("utf-8")

3097

if isinstance(s, bytes)

3098

else s) for s in

3099

value["client_structure"] ]

3100

# .name & .host

3101

for k in ("name", "host"):

3102

if isinstance(value[k], bytes):

3103

value[k] = value[k].decode("utf-8")

3104

## old_client_settings

3105

# .keys()

3106

old_client_settings = {

3107

(key.decode("utf-8")

3108

if isinstance(key, bytes)

3109

else key): value

3110

for key, value in

3111

bytes_old_client_settings.items() }

3112

del bytes_old_client_settings

3113

# .host

3114

for value in old_client_settings.values():

3115

if isinstance(value["host"], bytes):

3116

value["host"] = (value["host"]

3117

.decode("utf-8"))

2607

3118

os.remove(stored_state_path)

2608

3119

except IOError as e:

2609

3120

if e.errno == errno.ENOENT:

2642

3153

pass

2643

3154

2644

3155

# Clients who has passed its expire date can still be

2645

# enabled if its last checker was successful. Clients

3156

# enabled if its last checker was successful. A Client

2646

3157

# whose checker succeeded before we stored its state is

2647

3158

# assumed to have successfully run all checkers during

2648

3159

# downtime.

2700

3211

2701

3212

if not foreground:

2702

3213

if pidfile is not None:

3214

pid = os.getpid()

2703

3215

try:

2704

3216

with pidfile:

2705

pid = os.getpid()

2706

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

3217

print(pid, file=pidfile)

2707

3218

except IOError:

2708

3219

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

2709

3220

pidfilename, pid)

2710

3221

del pidfile

2711

3222

del pidfilename

2712

3223

2713

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

2714

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

3224

for termsig in (signal.SIGHUP, signal.SIGTERM):

3225

GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,

3226

lambda: main_loop.quit() and False)

2715

3227

2716

3228

if use_dbus:

2717

3229

2718

3230

@alternate_dbus_interfaces(

2719

3231

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

2720

class MandosDBusService(DBusObjectWithProperties):

3232

class MandosDBusService(DBusObjectWithObjectManager):

2721

3233

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

2722

3234

2723

3235

def __init__(self):

2725

3237

2726

3238

_interface = "se.recompile.Mandos"

2727

3239

2728

@dbus_interface_annotations(_interface)

2729

def _foo(self):

2730

return {

2731

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

2732

"false" }

2733

2734

3240

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

2735

3241

def ClientAdded(self, objpath):

2736

3242

"D-Bus signal"

2741

3247

"D-Bus signal"

2742

3248

pass

2743

3249

3250

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

3251

"true"})

2744

3252

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

2745

3253

def ClientRemoved(self, objpath, name):

2746

3254

"D-Bus signal"

2747

3255

pass

2748

3256

3257

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

3258

"true"})

2749

3259

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

2750

3260

def GetAllClients(self):

2751

3261

"D-Bus method"

2752

3262

return dbus.Array(c.dbus_object_path for c in

2753

tcp_server.clients.itervalues())

3263

tcp_server.clients.values())

2754

3264

3265

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

3266

"true"})

2755

3267

@dbus.service.method(_interface,

2756

3268

out_signature="a{oa{sv}}")

2757

3269

def GetAllClientsWithProperties(self):

2758

3270

"D-Bus method"

2759

3271

return dbus.Dictionary(

2760

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

2761

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

3272

{ c.dbus_object_path: c.GetAll(

3273

"se.recompile.Mandos.Client")

3274

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

2762

3275

signature="oa{sv}")

2763

3276

2764

3277

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

2765

3278

def RemoveClient(self, object_path):

2766

3279

"D-Bus method"

2767

for c in tcp_server.clients.itervalues():

3280

for c in tcp_server.clients.values():

2768

3281

if c.dbus_object_path == object_path:

2769

3282

del tcp_server.clients[c.name]

2770

3283

c.remove_from_connection()

2771

# Don't signal anything except ClientRemoved

3284

# Don't signal the disabling

2772

3285

c.disable(quiet=True)

2773

# Emit D-Bus signal

2774

self.ClientRemoved(object_path, c.name)

3286

# Emit D-Bus signal for removal

3287

self.client_removed_signal(c)

2775

3288

return

2776

3289

raise KeyError(object_path)

2777

3290

2778

3291

del _interface

3292

3293

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

3294

out_signature = "a{oa{sa{sv}}}")

3295

def GetManagedObjects(self):

3296

"""D-Bus method"""

3297

return dbus.Dictionary(

3298

{ client.dbus_object_path:

3299

dbus.Dictionary(

3300

{ interface: client.GetAll(interface)

3301

for interface in

3302

client._get_all_interface_names()})

3303

for client in tcp_server.clients.values()})

3304

3305

def client_added_signal(self, client):

3306

"""Send the new standard signal and the old signal"""

3307

if use_dbus:

3308

# New standard signal

3309

self.InterfacesAdded(

3310

client.dbus_object_path,

3311

dbus.Dictionary(

3312

{ interface: client.GetAll(interface)

3313

for interface in

3314

client._get_all_interface_names()}))

3315

# Old signal

3316

self.ClientAdded(client.dbus_object_path)

3317

3318

def client_removed_signal(self, client):

3319

"""Send the new standard signal and the old signal"""

3320

if use_dbus:

3321

# New standard signal

3322

self.InterfacesRemoved(

3323

client.dbus_object_path,

3324

client._get_all_interface_names())

3325

# Old signal

3326

self.ClientRemoved(client.dbus_object_path,

3327

client.name)

2779

3328

2780

3329

mandos_dbus_service = MandosDBusService()

2781

3330

3331

# Save modules to variables to exempt the modules from being

3332

# unloaded before the function registered with atexit() is run.

3333

mp = multiprocessing

3334

wn = wnull

2782

3335

def cleanup():

2783

3336

"Cleanup function; run on exit"

2784

3337

if zeroconf:

2785

3338

service.cleanup()

2786

3339

2787

multiprocessing.active_children()

2788

wnull.close()

3340

mp.active_children()

3341

wn.close()

2789

3342

if not (tcp_server.clients or client_settings):

2790

3343

return

2791

3344

2794

3347

# removed/edited, old secret will thus be unrecovable.

2795

3348

clients = {}

2796

3349

with PGPEngine() as pgp:

2797

for client in tcp_server.clients.itervalues():

3350

for client in tcp_server.clients.values():

2798

3351

key = client_settings[client.name]["secret"]

2799

3352

client.encrypted_secret = pgp.encrypt(client.secret,

2800

3353

key)

2824

3377

prefix='clients-',

2825

3378

dir=os.path.dirname(stored_state_path),

2826

3379

delete=False) as stored_state:

2827

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

3380

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

3381

protocol = 2)

2828

3382

tempname = stored_state.name

2829

3383

os.rename(tempname, stored_state_path)

2830

3384

except (IOError, OSError) as e:

2846

3400

name, client = tcp_server.clients.popitem()

2847

3401

if use_dbus:

2848

3402

client.remove_from_connection()

2849

# Don't signal anything except ClientRemoved

3403

# Don't signal the disabling

2850

3404

client.disable(quiet=True)

3405

# Emit D-Bus signal for removal

2851

3406

if use_dbus:

2852

# Emit D-Bus signal

2853

mandos_dbus_service.ClientRemoved(

2854

client.dbus_object_path, client.name)

3407

mandos_dbus_service.client_removed_signal(client)

2855

3408

client_settings.clear()

2856

3409

2857

3410

atexit.register(cleanup)

2858

3411

2859

for client in tcp_server.clients.itervalues():

3412

for client in tcp_server.clients.values():

2860

3413

if use_dbus:

2861

# Emit D-Bus signal

2862

mandos_dbus_service.ClientAdded(client.dbus_object_path)

3414

# Emit D-Bus signal for adding

3415

mandos_dbus_service.client_added_signal(client)

2863

3416

# Need to initiate checking of clients

2864

3417

if client.enabled:

2865

3418

client.init_checker()

2891

3444

sys.exit(1)

2892

3445

# End of Avahi example code

2893

3446

2894

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

2895

lambda *args, **kwargs:

2896

(tcp_server.handle_request

2897

(*args[2:], **kwargs) or True))

3447

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

3448

lambda *args, **kwargs:

3449

(tcp_server.handle_request

3450

(*args[2:], **kwargs) or True))

2898

3451

2899

3452

logger.debug("Starting main loop")

2900

3453

main_loop.run()