/mandos/release : revision 237.7.47

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

28

# along with this program. If not, see

29

# <http://www.gnu.org/licenses/>.

30

#

31

# Contact the authors at <mandos@recompile.se>.

31

# Contact the authors at <mandos@fukt.bsnet.se>.

32

#

33

34

from __future__ import (division, absolute_import, print_function,

62

import functools

63

import cPickle as pickle

64

import multiprocessing

65

import types

66

import binascii

67

import tempfile

68

import itertools

69

65

70

66

import dbus

71

67

import dbus.service

76

72

import ctypes.util

77

73

import xml.dom.minidom

78

74

import inspect

79

import GnuPGInterface

80

75

81

76

try:

82

77

SO_BINDTODEVICE = socket.SO_BINDTODEVICE

86

81

except ImportError:

87

82

SO_BINDTODEVICE = None

88

83

89

version = "1.5.3"

90

stored_state_file = "clients.pickle"

91

92

logger = logging.getLogger()

84

85

version = "1.3.1"

86

87

#logger = logging.getLogger('mandos')

88

logger = logging.Logger('mandos')

93

89

syslogger = (logging.handlers.SysLogHandler

94

90

(facility = logging.handlers.SysLogHandler.LOG_DAEMON,

95

91

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

96

97

try:

98

if_nametoindex = (ctypes.cdll.LoadLibrary

99

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

100

.if_nametoindex)

101

except (OSError, AttributeError):

102

def if_nametoindex(interface):

103

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

104

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

105

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

106

ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

107

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

108

interface))

109

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

110

ifreq[16:20])[0]

111

return interface_index

112

113

114

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

115

"""init logger and add loglevel"""

116

117

syslogger.setFormatter(logging.Formatter

118

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

119

' %(message)s'))

120

logger.addHandler(syslogger)

121

122

if debug:

123

console = logging.StreamHandler()

124

console.setFormatter(logging.Formatter('%(asctime)s %(name)s'

125

' [%(process)d]:'

126

' %(levelname)s:'

127

' %(message)s'))

128

logger.addHandler(console)

129

logger.setLevel(level)

130

131

132

class PGPError(Exception):

133

"""Exception if encryption/decryption fails"""

134

pass

135

136

137

class PGPEngine(object):

138

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

139

def __init__(self):

140

self.gnupg = GnuPGInterface.GnuPG()

141

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

142

self.gnupg = GnuPGInterface.GnuPG()

143

self.gnupg.options.meta_interactive = False

144

self.gnupg.options.homedir = self.tempdir

145

self.gnupg.options.extra_args.extend(['--force-mdc',

146

'--quiet',

147

'--no-use-agent'])

148

149

def __enter__(self):

150

return self

151

152

def __exit__ (self, exc_type, exc_value, traceback):

153

self._cleanup()

154

return False

155

156

def __del__(self):

157

self._cleanup()

158

159

def _cleanup(self):

160

if self.tempdir is not None:

161

# Delete contents of tempdir

162

for root, dirs, files in os.walk(self.tempdir,

163

topdown = False):

164

for filename in files:

165

os.remove(os.path.join(root, filename))

166

for dirname in dirs:

167

os.rmdir(os.path.join(root, dirname))

168

# Remove tempdir

169

os.rmdir(self.tempdir)

170

self.tempdir = None

171

172

def password_encode(self, password):

173

# Passphrase can not be empty and can not contain newlines or

174

# NUL bytes. So we prefix it and hex encode it.

175

return b"mandos" + binascii.hexlify(password)

176

177

def encrypt(self, data, password):

178

self.gnupg.passphrase = self.password_encode(password)

179

with open(os.devnull, "w") as devnull:

180

try:

181

proc = self.gnupg.run(['--symmetric'],

182

create_fhs=['stdin', 'stdout'],

183

attach_fhs={'stderr': devnull})

184

with contextlib.closing(proc.handles['stdin']) as f:

185

f.write(data)

186

with contextlib.closing(proc.handles['stdout']) as f:

187

ciphertext = f.read()

188

proc.wait()

189

except IOError as e:

190

raise PGPError(e)

191

self.gnupg.passphrase = None

192

return ciphertext

193

194

def decrypt(self, data, password):

195

self.gnupg.passphrase = self.password_encode(password)

196

with open(os.devnull, "w") as devnull:

197

try:

198

proc = self.gnupg.run(['--decrypt'],

199

create_fhs=['stdin', 'stdout'],

200

attach_fhs={'stderr': devnull})

201

with contextlib.closing(proc.handles['stdin']) as f:

202

f.write(data)

203

with contextlib.closing(proc.handles['stdout']) as f:

204

decrypted_plaintext = f.read()

205

proc.wait()

206

except IOError as e:

207

raise PGPError(e)

208

self.gnupg.passphrase = None

209

return decrypted_plaintext

210

211

92

syslogger.setFormatter(logging.Formatter

93

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

94

' %(message)s'))

95

logger.addHandler(syslogger)

96

97

console = logging.StreamHandler()

98

console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'

99

' %(levelname)s:'

100

' %(message)s'))

101

logger.addHandler(console)

212

102

213

103

class AvahiError(Exception):

214

104

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

269

159

" after %i retries, exiting.",

270

160

self.rename_count)

271

161

raise AvahiServiceError("Too many renames")

272

self.name = unicode(self.server

273

.GetAlternativeServiceName(self.name))

162

self.name = unicode(self.server.GetAlternativeServiceName(self.name))

274

163

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

275

164

self.name)

165

syslogger.setFormatter(logging.Formatter

166

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

167

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

168

% self.name))

276

169

self.remove()

277

170

try:

278

171

self.add()

298

191

avahi.DBUS_INTERFACE_ENTRY_GROUP)

299

192

self.entry_group_state_changed_match = (

300

193

self.group.connect_to_signal(

301

'StateChanged', self.entry_group_state_changed))

194

'StateChanged', self .entry_group_state_changed))

302

195

logger.debug("Adding Zeroconf service '%s' of type '%s' ...",

303

196

self.name, self.type)

304

197

self.group.AddService(

330

223

try:

331

224

self.group.Free()

332

225

except (dbus.exceptions.UnknownMethodException,

333

dbus.exceptions.DBusException):

226

dbus.exceptions.DBusException) as e:

334

227

pass

335

228

self.group = None

336

229

self.remove()

370

263

self.server_state_changed)

371

264

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

372

265

373

class AvahiServiceToSyslog(AvahiService):

374

def rename(self):

375

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

376

ret = AvahiService.rename(self)

377

syslogger.setFormatter(logging.Formatter

378

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

379

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

380

% self.name))

381

return ret

382

266

383

def timedelta_to_milliseconds(td):

384

"Convert a datetime.timedelta() to milliseconds"

385

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

386

+ (td.seconds * 1000)

387

+ (td.microseconds // 1000))

388

389

267

class Client(object):

390

268

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

391

269

392

270

Attributes:

393

approved: bool(); 'None' if not yet approved/disapproved

271

_approved: bool(); 'None' if not yet approved/disapproved

394

272

approval_delay: datetime.timedelta(); Time to wait for approval

395

273

approval_duration: datetime.timedelta(); Duration of one approval

396

274

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

403

281

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

404

282

checker_initiator_tag: a gobject event source tag, or None

405

283

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

406

client_structure: Object describing what attributes a client has

407

and is used for storing the client at exit

408

284

current_checker_command: string; current running checker_command

285

disable_hook: If set, called by disable() as disable_hook(self)

409

286

disable_initiator_tag: a gobject event source tag, or None

410

287

enabled: bool()

411

288

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

414

291

interval: datetime.timedelta(); How often to start a new checker

415

292

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

416

293

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

417

last_checker_status: integer between 0 and 255 reflecting exit

418

status of last checker. -1 reflects crashed

419

checker, -2 means no checker completed yet.

420

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

294

last_enabled: datetime.datetime(); (UTC)

421

295

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

422

296

D-Bus identifiers

423

297

secret: bytestring; sent verbatim (over TLS) to client

424

298

timeout: datetime.timedelta(); How long from last_checked_ok

425

299

until this client is disabled

426

extended_timeout: extra long timeout when secret has been sent

300

extended_timeout: extra long timeout when password has been sent

427

301

runtime_expansions: Allowed attributes for runtime expansion.

428

302

expires: datetime.datetime(); time (UTC) when a client will be

429

303

disabled, or None

433

307

"created", "enabled", "fingerprint",

434

308

"host", "interval", "last_checked_ok",

435

309

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

436

client_defaults = { "timeout": "5m",

437

"extended_timeout": "15m",

438

"interval": "2m",

439

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

440

"host": "",

441

"approval_delay": "0s",

442

"approval_duration": "1s",

443

"approved_by_default": "True",

444

"enabled": "True",

445

}

310

311

@staticmethod

312

def _timedelta_to_milliseconds(td):

313

"Convert a datetime.timedelta() to milliseconds"

314

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

315

+ (td.seconds * 1000)

316

+ (td.microseconds // 1000))

446

317

447

318

def timeout_milliseconds(self):

448

319

"Return the 'timeout' attribute in milliseconds"

449

return timedelta_to_milliseconds(self.timeout)

450

320

return self._timedelta_to_milliseconds(self.timeout)

321

451

322

def extended_timeout_milliseconds(self):

452

323

"Return the 'extended_timeout' attribute in milliseconds"

453

return timedelta_to_milliseconds(self.extended_timeout)

324

return self._timedelta_to_milliseconds(self.extended_timeout)

454

325

455

326

def interval_milliseconds(self):

456

327

"Return the 'interval' attribute in milliseconds"

457

return timedelta_to_milliseconds(self.interval)

458

328

return self._timedelta_to_milliseconds(self.interval)

329

459

330

def approval_delay_milliseconds(self):

460

return timedelta_to_milliseconds(self.approval_delay)

461

462

@staticmethod

463

def config_parser(config):

464

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

465

{ client_name: {setting_name: value, ...}, ...}

466

with exceptions for any special settings as defined above.

467

NOTE: Must be a pure function. Must return the same result

468

value given the same arguments.

469

"""

470

settings = {}

471

for client_name in config.sections():

472

section = dict(config.items(client_name))

473

client = settings[client_name] = {}

474

475

client["host"] = section["host"]

476

# Reformat values from string types to Python types

477

client["approved_by_default"] = config.getboolean(

478

client_name, "approved_by_default")

479

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

480

"enabled")

481

482

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

483

.replace(" ", ""))

484

if "secret" in section:

485

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

486

elif "secfile" in section:

487

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

488

(section["secfile"])),

489

"rb") as secfile:

490

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

491

else:

492

raise TypeError("No secret or secfile for section %s"

493

% section)

494

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

495

client["extended_timeout"] = string_to_delta(

496

section["extended_timeout"])

497

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

498

client["approval_delay"] = string_to_delta(

499

section["approval_delay"])

500

client["approval_duration"] = string_to_delta(

501

section["approval_duration"])

502

client["checker_command"] = section["checker"]

503

client["last_approval_request"] = None

504

client["last_checked_ok"] = None

505

client["last_checker_status"] = -2

506

507

return settings

508

509

510

def __init__(self, settings, name = None):

331

return self._timedelta_to_milliseconds(self.approval_delay)

332

333

def __init__(self, name = None, disable_hook=None, config=None):

511

334

"""Note: the 'checker' key in 'config' sets the

512

335

'checker_command' attribute and *not* the 'checker'

513

336

attribute."""

514

337

self.name = name

515

# adding all client settings

516

for setting, value in settings.iteritems():

517

setattr(self, setting, value)

518

519

if self.enabled:

520

if not hasattr(self, "last_enabled"):

521

self.last_enabled = datetime.datetime.utcnow()

522

if not hasattr(self, "expires"):

523

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

524

+ self.timeout)

525

else:

526

self.last_enabled = None

527

self.expires = None

528

338

if config is None:

339

config = {}

529

340

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

530

341

# Uppercase and remove spaces from fingerprint for later

531

342

# comparison purposes with return value from the fingerprint()

532

343

# function

344

self.fingerprint = (config["fingerprint"].upper()

345

.replace(" ", ""))

533

346

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

534

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

535

datetime.datetime.utcnow())

536

537

# attributes specific for this server instance

347

if "secret" in config:

348

self.secret = config["secret"].decode("base64")

349

elif "secfile" in config:

350

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

351

(config["secfile"])),

352

"rb") as secfile:

353

self.secret = secfile.read()

354

else:

355

raise TypeError("No secret or secfile for client %s"

356

% self.name)

357

self.host = config.get("host", "")

358

self.created = datetime.datetime.utcnow()

359

self.enabled = False

360

self.last_approval_request = None

361

self.last_enabled = None

362

self.last_checked_ok = None

363

self.timeout = string_to_delta(config["timeout"])

364

self.extended_timeout = string_to_delta(config["extended_timeout"])

365

self.interval = string_to_delta(config["interval"])

366

self.disable_hook = disable_hook

538

367

self.checker = None

539

368

self.checker_initiator_tag = None

540

369

self.disable_initiator_tag = None

370

self.expires = None

541

371

self.checker_callback_tag = None

372

self.checker_command = config["checker"]

542

373

self.current_checker_command = None

543

self.approved = None

374

self.last_connect = None

375

self._approved = None

376

self.approved_by_default = config.get("approved_by_default",

377

True)

544

378

self.approvals_pending = 0

545

self.changedstate = (multiprocessing_manager

546

.Condition(multiprocessing_manager

547

.Lock()))

548

self.client_structure = [attr for attr in

549

self.__dict__.iterkeys()

550

if not attr.startswith("_")]

551

self.client_structure.append("client_structure")

552

553

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

554

lambda obj:

555

isinstance(obj,

556

property)):

557

if not name.startswith("_"):

558

self.client_structure.append(name)

379

self.approval_delay = string_to_delta(

380

config["approval_delay"])

381

self.approval_duration = string_to_delta(

382

config["approval_duration"])

383

self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())

559

384

560

# Send notice to process children that client state has changed

561

385

def send_changedstate(self):

562

with self.changedstate:

563

self.changedstate.notify_all()

564

386

self.changedstate.acquire()

387

self.changedstate.notify_all()

388

self.changedstate.release()

389

565

390

def enable(self):

566

391

"""Start this client's checker and timeout hooks"""

567

392

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

568

393

# Already enabled

569

394

return

570

395

self.send_changedstate()

396

self.last_enabled = datetime.datetime.utcnow()

397

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

398

# and every interval from then on.

399

self.checker_initiator_tag = (gobject.timeout_add

400

(self.interval_milliseconds(),

401

self.start_checker))

402

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

571

403

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

404

self.disable_initiator_tag = (gobject.timeout_add

405

(self.timeout_milliseconds(),

406

self.disable))

572

407

self.enabled = True

573

self.last_enabled = datetime.datetime.utcnow()

574

self.init_checker()

408

# Also start a new checker *right now*.

409

self.start_checker()

575

410

576

411

def disable(self, quiet=True):

577

412

"""Disable this client."""

589

424

gobject.source_remove(self.checker_initiator_tag)

590

425

self.checker_initiator_tag = None

591

426

self.stop_checker()

427

if self.disable_hook:

428

self.disable_hook(self)

592

429

self.enabled = False

593

430

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

594

431

return False

595

432

596

433

def __del__(self):

434

self.disable_hook = None

597

435

self.disable()

598

436

599

def init_checker(self):

600

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

601

# and every interval from then on.

602

self.checker_initiator_tag = (gobject.timeout_add

603

(self.interval_milliseconds(),

604

self.start_checker))

605

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

606

self.disable_initiator_tag = (gobject.timeout_add

607

(self.timeout_milliseconds(),

608

self.disable))

609

# Also start a new checker *right now*.

610

self.start_checker()

611

612

437

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

613

438

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

614

439

self.checker_callback_tag = None

615

440

self.checker = None

616

441

if os.WIFEXITED(condition):

617

self.last_checker_status = os.WEXITSTATUS(condition)

618

if self.last_checker_status == 0:

442

exitstatus = os.WEXITSTATUS(condition)

443

if exitstatus == 0:

619

444

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

620

445

vars(self))

621

446

self.checked_ok()

623

448

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

624

449

vars(self))

625

450

else:

626

self.last_checker_status = -1

627

451

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

628

452

vars(self))

629

453

630

def checked_ok(self):

631

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

632

self.last_checked_ok = datetime.datetime.utcnow()

633

self.last_checker_status = 0

634

self.bump_timeout()

635

636

def bump_timeout(self, timeout=None):

637

"""Bump up the timeout for this client."""

454

def checked_ok(self, timeout=None):

455

"""Bump up the timeout for this client.

456

457

This should only be called when the client has been seen,

458

alive and well.

459

"""

638

460

if timeout is None:

639

461

timeout = self.timeout

640

if self.disable_initiator_tag is not None:

641

gobject.source_remove(self.disable_initiator_tag)

642

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

643

self.disable_initiator_tag = (gobject.timeout_add

644

(timedelta_to_milliseconds

645

(timeout), self.disable))

646

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

462

self.last_checked_ok = datetime.datetime.utcnow()

463

gobject.source_remove(self.disable_initiator_tag)

464

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

465

self.disable_initiator_tag = (gobject.timeout_add

466

(self._timedelta_to_milliseconds(timeout),

467

self.disable))

647

468

648

469

def need_approval(self):

649

470

self.last_approval_request = datetime.datetime.utcnow()

689

510

'replace')))

690

511

for attr in

691

512

self.runtime_expansions)

692

513

693

514

try:

694

515

command = self.checker_command % escaped_attrs

695

516

except TypeError as error:

741

562

raise

742

563

self.checker = None

743

564

744

745

565

def dbus_service_property(dbus_interface, signature="v",

746

566

access="readwrite", byte_arrays=False):

747

567

"""Decorators for marking methods of a DBusObjectWithProperties to

772

592

return decorator

773

593

774

594

775

def dbus_interface_annotations(dbus_interface):

776

"""Decorator for marking functions returning interface annotations.

777

778

Usage:

779

780

@dbus_interface_annotations("org.example.Interface")

781

def _foo(self): # Function name does not matter

782

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

783

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

784

"false"}

785

"""

786

def decorator(func):

787

func._dbus_is_interface = True

788

func._dbus_interface = dbus_interface

789

func._dbus_name = dbus_interface

790

return func

791

return decorator

792

793

794

def dbus_annotations(annotations):

795

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

796

Usage:

797

798

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

799

access="r")

800

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

801

"org.freedesktop.DBus.Property."

802

"EmitsChangedSignal": "false"})

803

def Property_dbus_property(self):

804

return dbus.Boolean(False)

805

"""

806

def decorator(func):

807

func._dbus_annotations = annotations

808

return func

809

return decorator

810

811

812

595

class DBusPropertyException(dbus.exceptions.DBusException):

813

596

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

814

597

"""

830

613

831

614

class DBusObjectWithProperties(dbus.service.Object):

832

615

"""A D-Bus object with properties.

833

616

834

617

Classes inheriting from this can use the dbus_service_property

835

618

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

836

619

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

837

620

"""

838

621

839

622

@staticmethod

840

def _is_dbus_thing(thing):

841

"""Returns a function testing if an attribute is a D-Bus thing

842

843

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

844

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

845

"""

846

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

847

False)

623

def _is_dbus_property(obj):

624

return getattr(obj, "_dbus_is_property", False)

848

625

849

def _get_all_dbus_things(self, thing):

626

def _get_all_dbus_properties(self):

850

627

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

851

628

"""

852

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

853

name),

854

athing.__get__(self))

855

for cls in self.__class__.__mro__

856

for name, athing in

857

inspect.getmembers(cls,

858

self._is_dbus_thing(thing)))

629

return ((prop._dbus_name, prop)

630

for name, prop in

631

inspect.getmembers(self, self._is_dbus_property))

859

632

860

633

def _get_dbus_property(self, interface_name, property_name):

861

634

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

862

635

property with the specified name and interface.

863

636

"""

864

for cls in self.__class__.__mro__:

865

for name, value in (inspect.getmembers

866

(cls,

867

self._is_dbus_thing("property"))):

868

if (value._dbus_name == property_name

869

and value._dbus_interface == interface_name):

870

return value.__get__(self)

871

637

for name in (property_name,

638

property_name + "_dbus_property"):

639

prop = getattr(self, name, None)

640

if (prop is None

641

or not self._is_dbus_property(prop)

642

or prop._dbus_name != property_name

643

or (interface_name and prop._dbus_interface

644

and interface_name != prop._dbus_interface)):

645

continue

646

return prop

872

647

# No such property

873

648

raise DBusPropertyNotFound(self.dbus_object_path + ":"

874

649

+ interface_name + "."

899

674

# signatures other than "ay".

900

675

if prop._dbus_signature != "ay":

901

676

raise ValueError

902

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

903

for byte in value))

677

value = dbus.ByteArray(''.join(unichr(byte)

678

for byte in value))

904

679

prop(value)

905

680

906

681

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

908

683

def GetAll(self, interface_name):

909

684

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

910

685

standard.

911

686

912

687

Note: Will not include properties with access="write".

913

688

"""

914

properties = {}

915

for name, prop in self._get_all_dbus_things("property"):

689

all = {}

690

for name, prop in self._get_all_dbus_properties():

916

691

if (interface_name

917

692

and interface_name != prop._dbus_interface):

918

693

# Interface non-empty but did not match

922

697

continue

923

698

value = prop()

924

699

if not hasattr(value, "variant_level"):

925

properties[name] = value

700

all[name] = value

926

701

continue

927

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

928

value.variant_level+1)

929

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

702

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

703

value.variant_level+1)

704

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

930

705

931

706

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

932

707

out_signature="s",

933

708

path_keyword='object_path',

934

709

connection_keyword='connection')

935

710

def Introspect(self, object_path, connection):

936

"""Overloading of standard D-Bus method.

937

938

Inserts property tags and interface annotation tags.

711

"""Standard D-Bus method, overloaded to insert property tags.

939

712

"""

940

713

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

941

714

connection)

948

721

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

949

722

return e

950

723

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

951

# Add property tags

952

724

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

953

725

for name, prop

954

in self._get_all_dbus_things("property")

726

in self._get_all_dbus_properties()

955

727

if prop._dbus_interface

956

728

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

957

729

if_tag.appendChild(tag)

958

# Add annotation tags

959

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

960

for tag in if_tag.getElementsByTagName(typ):

961

annots = dict()

962

for name, prop in (self.

963

_get_all_dbus_things(typ)):

964

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

965

and prop._dbus_interface

966

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

967

annots.update(getattr

968

(prop,

969

"_dbus_annotations",

970

{}))

971

for name, value in annots.iteritems():

972

ann_tag = document.createElement(

973

"annotation")

974

ann_tag.setAttribute("name", name)

975

ann_tag.setAttribute("value", value)

976

tag.appendChild(ann_tag)

977

# Add interface annotation tags

978

for annotation, value in dict(

979

itertools.chain(

980

*(annotations().iteritems()

981

for name, annotations in

982

self._get_all_dbus_things("interface")

983

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

984

))).iteritems():

985

ann_tag = document.createElement("annotation")

986

ann_tag.setAttribute("name", annotation)

987

ann_tag.setAttribute("value", value)

988

if_tag.appendChild(ann_tag)

989

730

# Add the names to the return values for the

990

731

# "org.freedesktop.DBus.Properties" methods

991

732

if (if_tag.getAttribute("name")

1010

751

return xmlstring

1011

752

1012

753

1013

def datetime_to_dbus (dt, variant_level=0):

1014

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

1015

if dt is None:

1016

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

1017

return dbus.String(dt.isoformat(),

1018

variant_level=variant_level)

1019

1020

1021

class AlternateDBusNamesMetaclass(DBusObjectWithProperties

1022

.__metaclass__):

1023

"""Applied to an empty subclass of a D-Bus object, this metaclass

1024

will add additional D-Bus attributes matching a certain pattern.

1025

"""

1026

def __new__(mcs, name, bases, attr):

1027

# Go through all the base classes which could have D-Bus

1028

# methods, signals, or properties in them

1029

old_interface_names = []

1030

for base in (b for b in bases

1031

if issubclass(b, dbus.service.Object)):

1032

# Go though all attributes of the base class

1033

for attrname, attribute in inspect.getmembers(base):

1034

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

1035

# with the wrong interface name

1036

if (not hasattr(attribute, "_dbus_interface")

1037

or not attribute._dbus_interface

1038

.startswith("se.recompile.Mandos")):

1039

continue

1040

# Create an alternate D-Bus interface name based on

1041

# the current name

1042

alt_interface = (attribute._dbus_interface

1043

.replace("se.recompile.Mandos",

1044

"se.bsnet.fukt.Mandos"))

1045

if alt_interface != attribute._dbus_interface:

1046

old_interface_names.append(alt_interface)

1047

# Is this a D-Bus signal?

1048

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

1049

# Extract the original non-method function by

1050

# black magic

1051

nonmethod_func = (dict(

1052

zip(attribute.func_code.co_freevars,

1053

attribute.__closure__))["func"]

1054

.cell_contents)

1055

# Create a new, but exactly alike, function

1056

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

1057

# with the alternate D-Bus interface name

1058

new_function = (dbus.service.signal

1059

(alt_interface,

1060

attribute._dbus_signature)

1061

(types.FunctionType(

1062

nonmethod_func.func_code,

1063

nonmethod_func.func_globals,

1064

nonmethod_func.func_name,

1065

nonmethod_func.func_defaults,

1066

nonmethod_func.func_closure)))

1067

# Copy annotations, if any

1068

try:

1069

new_function._dbus_annotations = (

1070

dict(attribute._dbus_annotations))

1071

except AttributeError:

1072

pass

1073

# Define a creator of a function to call both the

1074

# old and new functions, so both the old and new

1075

# signals gets sent when the function is called

1076

def fixscope(func1, func2):

1077

"""This function is a scope container to pass

1078

func1 and func2 to the "call_both" function

1079

outside of its arguments"""

1080

def call_both(*args, **kwargs):

1081

"""This function will emit two D-Bus

1082

signals by calling func1 and func2"""

1083

func1(*args, **kwargs)

1084

func2(*args, **kwargs)

1085

return call_both

1086

# Create the "call_both" function and add it to

1087

# the class

1088

attr[attrname] = fixscope(attribute,

1089

new_function)

1090

# Is this a D-Bus method?

1091

elif getattr(attribute, "_dbus_is_method", False):

1092

# Create a new, but exactly alike, function

1093

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

1094

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

1095

# to the class.

1096

attr[attrname] = (dbus.service.method

1097

(alt_interface,

1098

attribute._dbus_in_signature,

1099

attribute._dbus_out_signature)

1100

(types.FunctionType

1101

(attribute.func_code,

1102

attribute.func_globals,

1103

attribute.func_name,

1104

attribute.func_defaults,

1105

attribute.func_closure)))

1106

# Copy annotations, if any

1107

try:

1108

attr[attrname]._dbus_annotations = (

1109

dict(attribute._dbus_annotations))

1110

except AttributeError:

1111

pass

1112

# Is this a D-Bus property?

1113

elif getattr(attribute, "_dbus_is_property", False):

1114

# Create a new, but exactly alike, function

1115

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

1116

# property with the alternate D-Bus interface

1117

# name. Add it to the class.

1118

attr[attrname] = (dbus_service_property

1119

(alt_interface,

1120

attribute._dbus_signature,

1121

attribute._dbus_access,

1122

attribute

1123

._dbus_get_args_options

1124

["byte_arrays"])

1125

(types.FunctionType

1126

(attribute.func_code,

1127

attribute.func_globals,

1128

attribute.func_name,

1129

attribute.func_defaults,

1130

attribute.func_closure)))

1131

# Copy annotations, if any

1132

try:

1133

attr[attrname]._dbus_annotations = (

1134

dict(attribute._dbus_annotations))

1135

except AttributeError:

1136

pass

1137

# Is this a D-Bus interface?

1138

elif getattr(attribute, "_dbus_is_interface", False):

1139

# Create a new, but exactly alike, function

1140

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

1141

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

1142

# to the class.

1143

attr[attrname] = (dbus_interface_annotations

1144

(alt_interface)

1145

(types.FunctionType

1146

(attribute.func_code,

1147

attribute.func_globals,

1148

attribute.func_name,

1149

attribute.func_defaults,

1150

attribute.func_closure)))

1151

# Deprecate all old interfaces

1152

basename="_AlternateDBusNamesMetaclass_interface_annotation{0}"

1153

for old_interface_name in old_interface_names:

1154

@dbus_interface_annotations(old_interface_name)

1155

def func(self):

1156

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

1157

# Find an unused name

1158

for aname in (basename.format(i) for i in

1159

itertools.count()):

1160

if aname not in attr:

1161

attr[aname] = func

1162

break

1163

return type.__new__(mcs, name, bases, attr)

1164

1165

1166

754

class ClientDBus(Client, DBusObjectWithProperties):

1167

755

"""A Client class using D-Bus

1168

756

1177

765

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

1178

766

1179

767

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

768

self._approvals_pending = 0

1180

769

self.bus = bus

1181

770

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

1182

771

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

1188

777

("/clients/" + client_object_name))

1189

778

DBusObjectWithProperties.__init__(self, self.bus,

1190

779

self.dbus_object_path)

1191

1192

def notifychangeproperty(transform_func,

1193

dbus_name, type_func=lambda x: x,

1194

variant_level=1):

1195

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

1196

its changes to DBus.

1197

1198

transform_fun: Function that takes a value and a variant_level

1199

and transforms it to a D-Bus type.

1200

dbus_name: D-Bus name of the variable

1201

type_func: Function that transform the value before sending it

1202

to the D-Bus. Default: no transform

1203

variant_level: D-Bus variant level. Default: 1

1204

"""

1205

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

1206

def setter(self, value):

1207

if hasattr(self, "dbus_object_path"):

1208

if (not hasattr(self, attrname) or

1209

type_func(getattr(self, attrname, None))

1210

!= type_func(value)):

1211

dbus_value = transform_func(type_func(value),

1212

variant_level

1213

=variant_level)

1214

self.PropertyChanged(dbus.String(dbus_name),

1215

dbus_value)

1216

setattr(self, attrname, value)

1217

1218

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

1219

1220

1221

expires = notifychangeproperty(datetime_to_dbus, "Expires")

1222

approvals_pending = notifychangeproperty(dbus.Boolean,

1223

"ApprovalPending",

1224

type_func = bool)

1225

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

1226

last_enabled = notifychangeproperty(datetime_to_dbus,

1227

"LastEnabled")

1228

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

1229

type_func = lambda checker:

1230

checker is not None)

1231

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1232

"LastCheckedOK")

1233

last_checker_status = notifychangeproperty(dbus.Int16,

1234

"LastCheckerStatus")

1235

last_approval_request = notifychangeproperty(

1236

datetime_to_dbus, "LastApprovalRequest")

1237

approved_by_default = notifychangeproperty(dbus.Boolean,

1238

"ApprovedByDefault")

1239

approval_delay = notifychangeproperty(dbus.UInt64,

1240

"ApprovalDelay",

1241

type_func =

1242

timedelta_to_milliseconds)

1243

approval_duration = notifychangeproperty(

1244

dbus.UInt64, "ApprovalDuration",

1245

type_func = timedelta_to_milliseconds)

1246

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

1247

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

1248

type_func =

1249

timedelta_to_milliseconds)

1250

extended_timeout = notifychangeproperty(

1251

dbus.UInt64, "ExtendedTimeout",

1252

type_func = timedelta_to_milliseconds)

1253

interval = notifychangeproperty(dbus.UInt64,

1254

"Interval",

1255

type_func =

1256

timedelta_to_milliseconds)

1257

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

1258

1259

del notifychangeproperty

780

def _set_expires(self, value):

781

old_value = getattr(self, "_expires", None)

782

self._expires = value

783

if hasattr(self, "dbus_object_path") and old_value != value:

784

dbus_time = (self._datetime_to_dbus(self._expires,

785

variant_level=1))

786

self.PropertyChanged(dbus.String("Expires"),

787

dbus_time)

788

expires = property(lambda self: self._expires, _set_expires)

789

del _set_expires

790

791

def _get_approvals_pending(self):

792

return self._approvals_pending

793

def _set_approvals_pending(self, value):

794

old_value = self._approvals_pending

795

self._approvals_pending = value

796

bval = bool(value)

797

if (hasattr(self, "dbus_object_path")

798

and bval is not bool(old_value)):

799

dbus_bool = dbus.Boolean(bval, variant_level=1)

800

self.PropertyChanged(dbus.String("ApprovalPending"),

801

dbus_bool)

802

803

approvals_pending = property(_get_approvals_pending,

804

_set_approvals_pending)

805

del _get_approvals_pending, _set_approvals_pending

806

807

@staticmethod

808

def _datetime_to_dbus(dt, variant_level=0):

809

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

810

if dt is None:

811

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

812

return dbus.String(dt.isoformat(),

813

variant_level=variant_level)

814

815

def enable(self):

816

oldstate = getattr(self, "enabled", False)

817

r = Client.enable(self)

818

if oldstate != self.enabled:

819

# Emit D-Bus signals

820

self.PropertyChanged(dbus.String("Enabled"),

821

dbus.Boolean(True, variant_level=1))

822

self.PropertyChanged(

823

dbus.String("LastEnabled"),

824

self._datetime_to_dbus(self.last_enabled,

825

variant_level=1))

826

return r

827

828

def disable(self, quiet = False):

829

oldstate = getattr(self, "enabled", False)

830

r = Client.disable(self, quiet=quiet)

831

if not quiet and oldstate != self.enabled:

832

# Emit D-Bus signal

833

self.PropertyChanged(dbus.String("Enabled"),

834

dbus.Boolean(False, variant_level=1))

835

return r

1260

836

1261

837

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

1262

838

try:

1271

847

*args, **kwargs):

1272

848

self.checker_callback_tag = None

1273

849

self.checker = None

850

# Emit D-Bus signal

851

self.PropertyChanged(dbus.String("CheckerRunning"),

852

dbus.Boolean(False, variant_level=1))

1274

853

if os.WIFEXITED(condition):

1275

854

exitstatus = os.WEXITSTATUS(condition)

1276

855

# Emit D-Bus signal

1286

865

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

1287

866

*args, **kwargs)

1288

867

868

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

869

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

870

# Emit D-Bus signal

871

self.PropertyChanged(

872

dbus.String("LastCheckedOK"),

873

(self._datetime_to_dbus(self.last_checked_ok,

874

variant_level=1)))

875

876

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

877

r = Client.need_approval(self, *args, **kwargs)

878

# Emit D-Bus signal

879

self.PropertyChanged(

880

dbus.String("LastApprovalRequest"),

881

(self._datetime_to_dbus(self.last_approval_request,

882

variant_level=1)))

883

return r

884

1289

885

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

1290

886

old_checker = self.checker

1291

887

if self.checker is not None:

1298

894

and old_checker_pid != self.checker.pid):

1299

895

# Emit D-Bus signal

1300

896

self.CheckerStarted(self.current_checker_command)

897

self.PropertyChanged(

898

dbus.String("CheckerRunning"),

899

dbus.Boolean(True, variant_level=1))

1301

900

return r

1302

901

902

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

903

old_checker = getattr(self, "checker", None)

904

r = Client.stop_checker(self, *args, **kwargs)

905

if (old_checker is not None

906

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

907

self.PropertyChanged(dbus.String("CheckerRunning"),

908

dbus.Boolean(False, variant_level=1))

909

return r

910

1303

911

def _reset_approved(self):

1304

self.approved = None

912

self._approved = None

1305

913

return False

1306

914

1307

915

def approve(self, value=True):

1308

916

self.send_changedstate()

1309

self.approved = value

1310

gobject.timeout_add(timedelta_to_milliseconds

917

self._approved = value

918

gobject.timeout_add(self._timedelta_to_milliseconds

1311

919

(self.approval_duration),

1312

920

self._reset_approved)

1313

921

1314

922

1315

923

## D-Bus methods, signals & properties

1316

_interface = "se.recompile.Mandos.Client"

1317

1318

## Interfaces

1319

1320

@dbus_interface_annotations(_interface)

1321

def _foo(self):

1322

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

1323

"false"}

924

_interface = "se.bsnet.fukt.Mandos.Client"

1324

925

1325

926

## Signals

1326

927

1411

1012

def ApprovedByDefault_dbus_property(self, value=None):

1412

1013

if value is None: # get

1413

1014

return dbus.Boolean(self.approved_by_default)

1015

old_value = self.approved_by_default

1414

1016

self.approved_by_default = bool(value)

1017

# Emit D-Bus signal

1018

if old_value != self.approved_by_default:

1019

self.PropertyChanged(dbus.String("ApprovedByDefault"),

1020

dbus.Boolean(value, variant_level=1))

1415

1021

1416

1022

# ApprovalDelay - property

1417

1023

@dbus_service_property(_interface, signature="t",

1419

1025

def ApprovalDelay_dbus_property(self, value=None):

1420

1026

if value is None: # get

1421

1027

return dbus.UInt64(self.approval_delay_milliseconds())

1028

old_value = self.approval_delay

1422

1029

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

1030

# Emit D-Bus signal

1031

if old_value != self.approval_delay:

1032

self.PropertyChanged(dbus.String("ApprovalDelay"),

1033

dbus.UInt64(value, variant_level=1))

1423

1034

1424

1035

# ApprovalDuration - property

1425

1036

@dbus_service_property(_interface, signature="t",

1426

1037

access="readwrite")

1427

1038

def ApprovalDuration_dbus_property(self, value=None):

1428

1039

if value is None: # get

1429

return dbus.UInt64(timedelta_to_milliseconds(

1040

return dbus.UInt64(self._timedelta_to_milliseconds(

1430

1041

self.approval_duration))

1042

old_value = self.approval_duration

1431

1043

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

1044

# Emit D-Bus signal

1045

if old_value != self.approval_duration:

1046

self.PropertyChanged(dbus.String("ApprovalDuration"),

1047

dbus.UInt64(value, variant_level=1))

1432

1048

1433

1049

# Name - property

1434

1050

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

1446

1062

def Host_dbus_property(self, value=None):

1447

1063

if value is None: # get

1448

1064

return dbus.String(self.host)

1449

self.host = unicode(value)

1065

old_value = self.host

1066

self.host = value

1067

# Emit D-Bus signal

1068

if old_value != self.host:

1069

self.PropertyChanged(dbus.String("Host"),

1070

dbus.String(value, variant_level=1))

1450

1071

1451

1072

# Created - property

1452

1073

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

1453

1074

def Created_dbus_property(self):

1454

return datetime_to_dbus(self.created)

1075

return dbus.String(self._datetime_to_dbus(self.created))

1455

1076

1456

1077

# LastEnabled - property

1457

1078

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

1458

1079

def LastEnabled_dbus_property(self):

1459

return datetime_to_dbus(self.last_enabled)

1080

return self._datetime_to_dbus(self.last_enabled)

1460

1081

1461

1082

# Enabled - property

1462

1083

@dbus_service_property(_interface, signature="b",

1476

1097

if value is not None:

1477

1098

self.checked_ok()

1478

1099

return

1479

return datetime_to_dbus(self.last_checked_ok)

1480

1481

# LastCheckerStatus - property

1482

@dbus_service_property(_interface, signature="n",

1483

access="read")

1484

def LastCheckerStatus_dbus_property(self):

1485

return dbus.Int16(self.last_checker_status)

1100

return self._datetime_to_dbus(self.last_checked_ok)

1486

1101

1487

1102

# Expires - property

1488

1103

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

1489

1104

def Expires_dbus_property(self):

1490

return datetime_to_dbus(self.expires)

1105

return self._datetime_to_dbus(self.expires)

1491

1106

1492

1107

# LastApprovalRequest - property

1493

1108

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

1494

1109

def LastApprovalRequest_dbus_property(self):

1495

return datetime_to_dbus(self.last_approval_request)

1110

return self._datetime_to_dbus(self.last_approval_request)

1496

1111

1497

1112

# Timeout - property

1498

1113

@dbus_service_property(_interface, signature="t",

1500

1115

def Timeout_dbus_property(self, value=None):

1501

1116

if value is None: # get

1502

1117

return dbus.UInt64(self.timeout_milliseconds())

1118

old_value = self.timeout

1503

1119

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

1120

# Emit D-Bus signal

1121

if old_value != self.timeout:

1122

self.PropertyChanged(dbus.String("Timeout"),

1123

dbus.UInt64(value, variant_level=1))

1124

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

1125

return

1504

1126

# Reschedule timeout

1505

if self.enabled:

1506

now = datetime.datetime.utcnow()

1507

time_to_die = timedelta_to_milliseconds(

1508

(self.last_checked_ok + self.timeout) - now)

1509

if time_to_die <= 0:

1510

# The timeout has passed

1511

self.disable()

1512

else:

1513

self.expires = (now +

1514

datetime.timedelta(milliseconds =

1515

time_to_die))

1516

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

1517

is None):

1518

return

1519

gobject.source_remove(self.disable_initiator_tag)

1520

self.disable_initiator_tag = (gobject.timeout_add

1521

(time_to_die,

1522

self.disable))

1523

1127

gobject.source_remove(self.disable_initiator_tag)

1128

self.disable_initiator_tag = None

1129

self.expires = None

1130

time_to_die = (self.

1131

_timedelta_to_milliseconds((self

1132

.last_checked_ok

1133

+ self.timeout)

1134

- datetime.datetime

1135

.utcnow()))

1136

if time_to_die <= 0:

1137

# The timeout has passed

1138

self.disable()

1139

else:

1140

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

1141

+ datetime.timedelta(milliseconds = time_to_die))

1142

self.disable_initiator_tag = (gobject.timeout_add

1143

(time_to_die, self.disable))

1144

1524

1145

# ExtendedTimeout - property

1525

1146

@dbus_service_property(_interface, signature="t",

1526

1147

access="readwrite")

1527

1148

def ExtendedTimeout_dbus_property(self, value=None):

1528

1149

if value is None: # get

1529

1150

return dbus.UInt64(self.extended_timeout_milliseconds())

1151

old_value = self.extended_timeout

1530

1152

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

1531

1153

# Emit D-Bus signal

1154

if old_value != self.extended_timeout:

1155

self.PropertyChanged(dbus.String("ExtendedTimeout"),

1156

dbus.UInt64(value, variant_level=1))

1157

1532

1158

# Interval - property

1533

1159

@dbus_service_property(_interface, signature="t",

1534

1160

access="readwrite")

1535

1161

def Interval_dbus_property(self, value=None):

1536

1162

if value is None: # get

1537

1163

return dbus.UInt64(self.interval_milliseconds())

1164

old_value = self.interval

1538

1165

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

1166

# Emit D-Bus signal

1167

if old_value != self.interval:

1168

self.PropertyChanged(dbus.String("Interval"),

1169

dbus.UInt64(value, variant_level=1))

1539

1170

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

1540

1171

return

1541

if self.enabled:

1542

# Reschedule checker run

1543

gobject.source_remove(self.checker_initiator_tag)

1544

self.checker_initiator_tag = (gobject.timeout_add

1545

(value, self.start_checker))

1546

self.start_checker() # Start one now, too

1547

1172

# Reschedule checker run

1173

gobject.source_remove(self.checker_initiator_tag)

1174

self.checker_initiator_tag = (gobject.timeout_add

1175

(value, self.start_checker))

1176

self.start_checker() # Start one now, too

1177

1548

1178

# Checker - property

1549

1179

@dbus_service_property(_interface, signature="s",

1550

1180

access="readwrite")

1551

1181

def Checker_dbus_property(self, value=None):

1552

1182

if value is None: # get

1553

1183

return dbus.String(self.checker_command)

1554

self.checker_command = unicode(value)

1184

old_value = self.checker_command

1185

self.checker_command = value

1186

# Emit D-Bus signal

1187

if old_value != self.checker_command:

1188

self.PropertyChanged(dbus.String("Checker"),

1189

dbus.String(self.checker_command,

1190

variant_level=1))

1555

1191

1556

1192

# CheckerRunning - property

1557

1193

@dbus_service_property(_interface, signature="b",

1584

1220

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

1585

1221

if not self._pipe.recv():

1586

1222

raise KeyError()

1587

1223

1588

1224

def __getattribute__(self, name):

1589

if name == '_pipe':

1225

if(name == '_pipe'):

1590

1226

return super(ProxyClient, self).__getattribute__(name)

1591

1227

self._pipe.send(('getattr', name))

1592

1228

data = self._pipe.recv()

1597

1233

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

1598

1234

return self._pipe.recv()[1]

1599

1235

return func

1600

1236

1601

1237

def __setattr__(self, name, value):

1602

if name == '_pipe':

1238

if(name == '_pipe'):

1603

1239

return super(ProxyClient, self).__setattr__(name, value)

1604

1240

self._pipe.send(('setattr', name, value))

1605

1241

1606

1242

1607

class ClientDBusTransitional(ClientDBus):

1608

__metaclass__ = AlternateDBusNamesMetaclass

1609

1610

1611

1243

class ClientHandler(socketserver.BaseRequestHandler, object):

1612

1244

"""A class to handle client connections.

1613

1245

1620

1252

unicode(self.client_address))

1621

1253

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

1622

1254

self.server.child_pipe.fileno())

1623

1255

1624

1256

session = (gnutls.connection

1625

1257

.ClientSession(self.request,

1626

1258

gnutls.connection

1627

1259

.X509Credentials()))

1628

1260

1629

1261

# Note: gnutls.connection.X509Credentials is really a

1630

1262

# generic GnuTLS certificate credentials object so long as

1631

1263

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

1632

1264

# here despite using OpenPGP certificates.

1633

1265

1634

1266

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

1635

1267

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

1636

1268

# "+COMP-NULL", "+CTYPE-OPENPGP",

1642

1274

(gnutls.library.functions

1643

1275

.gnutls_priority_set_direct(session._c_object,

1644

1276

priority, None))

1645

1277

1646

1278

# Start communication using the Mandos protocol

1647

1279

# Get protocol number

1648

1280

line = self.request.makefile().readline()

1653

1285

except (ValueError, IndexError, RuntimeError) as error:

1654

1286

logger.error("Unknown protocol version: %s", error)

1655

1287

return

1656

1288

1657

1289

# Start GnuTLS connection

1658

1290

try:

1659

1291

session.handshake()

1663

1295

# established. Just abandon the request.

1664

1296

return

1665

1297

logger.debug("Handshake succeeded")

1666

1298

1667

1299

approval_required = False

1668

1300

try:

1669

1301

try:

1674

1306

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

1675

1307

return

1676

1308

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

1677

1309

1678

1310

try:

1679

1311

client = ProxyClient(child_pipe, fpr,

1680

1312

self.client_address)

1692

1324

client.name)

1693

1325

if self.server.use_dbus:

1694

1326

# Emit D-Bus signal

1695

client.Rejected("Disabled")

1327

client.Rejected("Disabled")

1696

1328

return

1697

1329

1698

if client.approved or not client.approval_delay:

1330

if client._approved or not client.approval_delay:

1699

1331

#We are approved or approval is disabled

1700

1332

break

1701

elif client.approved is None:

1333

elif client._approved is None:

1702

1334

logger.info("Client %s needs approval",

1703

1335

client.name)

1704

1336

if self.server.use_dbus:

1715

1347

return

1716

1348

1717

1349

#wait until timeout or approved

1350

#x = float(client._timedelta_to_milliseconds(delay))

1718

1351

time = datetime.datetime.now()

1719

1352

client.changedstate.acquire()

1720

(client.changedstate.wait

1721

(float(client.timedelta_to_milliseconds(delay)

1722

/ 1000)))

1353

client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))

1723

1354

client.changedstate.release()

1724

1355

time2 = datetime.datetime.now()

1725

1356

if (time2 - time) >= delay:

1747

1378

sent, len(client.secret)

1748

1379

- (sent_size + sent))

1749

1380

sent_size += sent

1750

1381

1751

1382

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

1752

# bump the timeout using extended_timeout

1753

client.bump_timeout(client.extended_timeout)

1383

# bump the timeout as if seen

1384

client.checked_ok(client.extended_timeout)

1754

1385

if self.server.use_dbus:

1755

1386

# Emit D-Bus signal

1756

1387

client.GotSecret()

1823

1454

# Convert the buffer to a Python bytestring

1824

1455

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

1825

1456

# Convert the bytestring to hexadecimal notation

1826

hex_fpr = binascii.hexlify(fpr).upper()

1457

hex_fpr = ''.join("%02X" % ord(char) for char in fpr)

1827

1458

return hex_fpr

1828

1459

1829

1460

1832

1463

def sub_process_main(self, request, address):

1833

1464

try:

1834

1465

self.finish_request(request, address)

1835

except Exception:

1466

except:

1836

1467

self.handle_error(request, address)

1837

1468

self.close_request(request)

1838

1469

1839

1470

def process_request(self, request, address):

1840

1471

"""Start a new process to process the request."""

1841

proc = multiprocessing.Process(target = self.sub_process_main,

1842

args = (request,

1843

address))

1844

proc.start()

1845

return proc

1846

1472

multiprocessing.Process(target = self.sub_process_main,

1473

args = (request, address)).start()

1847

1474

1848

1475

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1849

1476

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

1853

1480

This function creates a new pipe in self.pipe

1854

1481

"""

1855

1482

parent_pipe, self.child_pipe = multiprocessing.Pipe()

1856

1857

proc = MultiprocessingMixIn.process_request(self, request,

1858

client_address)

1483

1484

super(MultiprocessingMixInWithPipe,

1485

self).process_request(request, client_address)

1859

1486

self.child_pipe.close()

1860

self.add_pipe(parent_pipe, proc)

1861

1862

def add_pipe(self, parent_pipe, proc):

1487

self.add_pipe(parent_pipe)

1488

1489

def add_pipe(self, parent_pipe):

1863

1490

"""Dummy function; override as necessary"""

1864

1491

raise NotImplementedError

1865

1492

1866

1867

1493

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

1868

1494

socketserver.TCPServer, object):

1869

1495

"""IPv6-capable TCP server. Accepts 'None' as address and/or port

1943

1569

self.enabled = False

1944

1570

self.clients = clients

1945

1571

if self.clients is None:

1946

self.clients = {}

1572

self.clients = set()

1947

1573

self.use_dbus = use_dbus

1948

1574

self.gnutls_priority = gnutls_priority

1949

1575

IPv6_TCPServer.__init__(self, server_address,

1953

1579

def server_activate(self):

1954

1580

if self.enabled:

1955

1581

return socketserver.TCPServer.server_activate(self)

1956

1957

1582

def enable(self):

1958

1583

self.enabled = True

1959

1960

def add_pipe(self, parent_pipe, proc):

1584

def add_pipe(self, parent_pipe):

1961

1585

# Call "handle_ipc" for both data and EOF events

1962

1586

gobject.io_add_watch(parent_pipe.fileno(),

1963

1587

gobject.IO_IN | gobject.IO_HUP,

1964

1588

functools.partial(self.handle_ipc,

1965

parent_pipe =

1966

parent_pipe,

1967

proc = proc))

1968

1589

parent_pipe = parent_pipe))

1590

1969

1591

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

1970

proc = None, client_object=None):

1592

client_object=None):

1971

1593

condition_names = {

1972

1594

gobject.IO_IN: "IN", # There is data to read.

1973

1595

gobject.IO_OUT: "OUT", # Data can be written (without

1982

1604

for cond, name in

1983

1605

condition_names.iteritems()

1984

1606

if cond & condition)

1985

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

1607

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

1986

1608

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

1987

# Wait for other process to exit

1988

proc.join()

1989

1609

return False

1990

1610

1991

1611

# Read a request from the child

1996

1616

fpr = request[1]

1997

1617

address = request[2]

1998

1618

1999

for c in self.clients.itervalues():

1619

for c in self.clients:

2000

1620

if c.fingerprint == fpr:

2001

1621

client = c

2002

1622

break

2005

1625

"dress: %s", fpr, address)

2006

1626

if self.use_dbus:

2007

1627

# Emit D-Bus signal

2008

mandos_dbus_service.ClientNotFound(fpr,

2009

address[0])

1628

mandos_dbus_service.ClientNotFound(fpr, address[0])

2010

1629

parent_pipe.send(False)

2011

1630

return False

2012

1631

2013

1632

gobject.io_add_watch(parent_pipe.fileno(),

2014

1633

gobject.IO_IN | gobject.IO_HUP,

2015

1634

functools.partial(self.handle_ipc,

2016

parent_pipe =

2017

parent_pipe,

2018

proc = proc,

2019

client_object =

2020

client))

1635

parent_pipe = parent_pipe,

1636

client_object = client))

2021

1637

parent_pipe.send(True)

2022

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

2023

# same fileno

1638

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

2024

1639

return False

2025

1640

if command == 'funcall':

2026

1641

funcname = request[1]

2027

1642

args = request[2]

2028

1643

kwargs = request[3]

2029

1644

2030

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

2031

funcname)(*args,

2032

**kwargs)))

2033

1645

parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))

1646

2034

1647

if command == 'getattr':

2035

1648

attrname = request[1]

2036

1649

if callable(client_object.__getattribute__(attrname)):

2037

1650

parent_pipe.send(('function',))

2038

1651

else:

2039

parent_pipe.send(('data', client_object

2040

.__getattribute__(attrname)))

1652

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

2041

1653

2042

1654

if command == 'setattr':

2043

1655

attrname = request[1]

2044

1656

value = request[2]

2045

1657

setattr(client_object, attrname, value)

2046

1658

2047

1659

return True

2048

1660

2049

1661

2086

1698

return timevalue

2087

1699

2088

1700

1701

def if_nametoindex(interface):

1702

"""Call the C function if_nametoindex(), or equivalent

1703

1704

Note: This function cannot accept a unicode string."""

1705

global if_nametoindex

1706

try:

1707

if_nametoindex = (ctypes.cdll.LoadLibrary

1708

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

1709

.if_nametoindex)

1710

except (OSError, AttributeError):

1711

logger.warning("Doing if_nametoindex the hard way")

1712

def if_nametoindex(interface):

1713

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

1714

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

1715

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

1716

ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

1717

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

1718

interface))

1719

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

1720

ifreq[16:20])[0]

1721

return interface_index

1722

return if_nametoindex(interface)

1723

1724

2089

1725

def daemon(nochdir = False, noclose = False):

2090

1726

"""See daemon(3). Standard BSD Unix function.

2091

1727

2099

1735

sys.exit()

2100

1736

if not noclose:

2101

1737

# Close all standard open file descriptors

2102

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

1738

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

2103

1739

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

2104

1740

raise OSError(errno.ENODEV,

2105

1741

"%s not a character device"

2106

% os.devnull)

1742

% os.path.devnull)

2107

1743

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

2108

1744

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

2109

1745

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

2146

1782

" system bus interface")

2147

1783

parser.add_argument("--no-ipv6", action="store_false",

2148

1784

dest="use_ipv6", help="Do not use IPv6")

2149

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

2150

dest="restore", help="Do not restore stored"

2151

" state")

2152

parser.add_argument("--statedir", metavar="DIR",

2153

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

2154

2155

1785

options = parser.parse_args()

2156

1786

2157

1787

if options.check:

2170

1800

"use_dbus": "True",

2171

1801

"use_ipv6": "True",

2172

1802

"debuglevel": "",

2173

"restore": "True",

2174

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

2175

1803

}

2176

1804

2177

1805

# Parse config file for server-global settings

2194

1822

# options, if set.

2195

1823

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

2196

1824

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

2197

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

2198

"statedir"):

1825

"use_dbus", "use_ipv6", "debuglevel"):

2199

1826

value = getattr(options, option)

2200

1827

if value is not None:

2201

1828

server_settings[option] = value

2213

1840

debuglevel = server_settings["debuglevel"]

2214

1841

use_dbus = server_settings["use_dbus"]

2215

1842

use_ipv6 = server_settings["use_ipv6"]

2216

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

2217

stored_state_file)

2218

2219

if debug:

2220

initlogger(debug, logging.DEBUG)

2221

else:

2222

if not debuglevel:

2223

initlogger(debug)

2224

else:

2225

level = getattr(logging, debuglevel.upper())

2226

initlogger(debug, level)

2227

1843

2228

1844

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

2229

1845

syslogger.setFormatter(logging.Formatter

2230

1846

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

2232

1848

% server_settings["servicename"]))

2233

1849

2234

1850

# Parse config file with clients

2235

client_config = configparser.SafeConfigParser(Client

2236

.client_defaults)

1851

client_defaults = { "timeout": "5m",

1852

"extended_timeout": "15m",

1853

"interval": "2m",

1854

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

1855

"host": "",

1856

"approval_delay": "0s",

1857

"approval_duration": "1s",

1858

}

1859

client_config = configparser.SafeConfigParser(client_defaults)

2237

1860

client_config.read(os.path.join(server_settings["configdir"],

2238

1861

"clients.conf"))

2239

1862

2277

1900

if error[0] != errno.EPERM:

2278

1901

raise error

2279

1902

1903

if not debug and not debuglevel:

1904

syslogger.setLevel(logging.WARNING)

1905

console.setLevel(logging.WARNING)

1906

if debuglevel:

1907

level = getattr(logging, debuglevel.upper())

1908

syslogger.setLevel(level)

1909

console.setLevel(level)

1910

2280

1911

if debug:

2281

1912

# Enable all possible GnuTLS debugging

2282

1913

2292

1923

.gnutls_global_set_log_function(debug_gnutls))

2293

1924

2294

1925

# Redirect stdin so all checkers get /dev/null

2295

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

1926

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

2296

1927

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

2297

1928

if null > 2:

2298

1929

os.close(null)

1930

else:

1931

# No console logging

1932

logger.removeHandler(console)

2299

1933

2300

1934

# Need to fork before connecting to D-Bus

2301

1935

if not debug:

2302

1936

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

2303

1937

daemon()

2304

1938

2305

gobject.threads_init()

2306

2307

1939

global main_loop

2308

1940

# From the Avahi example code

2309

DBusGMainLoop(set_as_default=True)

1941

DBusGMainLoop(set_as_default=True )

2310

1942

main_loop = gobject.MainLoop()

2311

1943

bus = dbus.SystemBus()

2312

1944

# End of Avahi example code

2313

1945

if use_dbus:

2314

1946

try:

2315

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

1947

bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",

2316

1948

bus, do_not_queue=True)

2317

old_bus_name = (dbus.service.BusName

2318

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

2319

do_not_queue=True))

2320

1949

except dbus.exceptions.NameExistsException as e:

2321

1950

logger.error(unicode(e) + ", disabling D-Bus")

2322

1951

use_dbus = False

2323

1952

server_settings["use_dbus"] = False

2324

1953

tcp_server.use_dbus = False

2325

1954

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2326

service = AvahiServiceToSyslog(name =

2327

server_settings["servicename"],

2328

servicetype = "_mandos._tcp",

2329

protocol = protocol, bus = bus)

1955

service = AvahiService(name = server_settings["servicename"],

1956

servicetype = "_mandos._tcp",

1957

protocol = protocol, bus = bus)

2330

1958

if server_settings["interface"]:

2331

1959

service.interface = (if_nametoindex

2332

1960

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

2336

1964

2337

1965

client_class = Client

2338

1966

if use_dbus:

2339

client_class = functools.partial(ClientDBusTransitional,

2340

bus = bus)

2341

2342

client_settings = Client.config_parser(client_config)

2343

old_client_settings = {}

2344

clients_data = {}

2345

2346

# Get client data and settings from last running state.

2347

if server_settings["restore"]:

2348

try:

2349

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

2350

clients_data, old_client_settings = (pickle.load

2351

(stored_state))

2352

os.remove(stored_state_path)

2353

except IOError as e:

2354

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

2355

.format(e))

2356

if e.errno != errno.ENOENT:

2357

raise

2358

except EOFError as e:

2359

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

2360

"EOFError: {0}".format(e))

2361

2362

with PGPEngine() as pgp:

2363

for client_name, client in clients_data.iteritems():

2364

# Decide which value to use after restoring saved state.

2365

# We have three different values: Old config file,

2366

# new config file, and saved state.

2367

# New config value takes precedence if it differs from old

2368

# config value, otherwise use saved state.

2369

for name, value in client_settings[client_name].items():

2370

try:

2371

# For each value in new config, check if it

2372

# differs from the old config value (Except for

2373

# the "secret" attribute)

2374

if (name != "secret" and

2375

value != old_client_settings[client_name]

2376

[name]):

2377

client[name] = value

2378

except KeyError:

2379

pass

2380

2381

# Clients who has passed its expire date can still be

2382

# enabled if its last checker was successful. Clients

2383

# whose checker succeeded before we stored its state is

2384

# assumed to have successfully run all checkers during

2385

# downtime.

2386

if client["enabled"]:

2387

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

2388

if not client["last_checked_ok"]:

2389

logger.warning(

2390

"disabling client {0} - Client never "

2391

"performed a successful checker"

2392

.format(client_name))

2393

client["enabled"] = False

2394

elif client["last_checker_status"] != 0:

2395

logger.warning(

2396

"disabling client {0} - Client "

2397

"last checker failed with error code {1}"

2398

.format(client_name,

2399

client["last_checker_status"]))

2400

client["enabled"] = False

2401

else:

2402

client["expires"] = (datetime.datetime

2403

.utcnow()

2404

+ client["timeout"])

2405

logger.debug("Last checker succeeded,"

2406

" keeping {0} enabled"

2407

.format(client_name))

1967

client_class = functools.partial(ClientDBus, bus = bus)

1968

def client_config_items(config, section):

1969

special_settings = {

1970

"approved_by_default":

1971

lambda: config.getboolean(section,

1972

"approved_by_default"),

1973

}

1974

for name, value in config.items(section):

2408

1975

try:

2409

client["secret"] = (

2410

pgp.decrypt(client["encrypted_secret"],

2411

client_settings[client_name]

2412

["secret"]))

2413

except PGPError:

2414

# If decryption fails, we use secret from new settings

2415

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

2416

.format(client_name))

2417

client["secret"] = (

2418

client_settings[client_name]["secret"])

2419

2420

2421

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

2422

for client_name in (set(old_client_settings)

2423

- set(client_settings)):

2424

del clients_data[client_name]

2425

for client_name in (set(client_settings)

2426

- set(old_client_settings)):

2427

clients_data[client_name] = client_settings[client_name]

2428

2429

# Create all client objects

2430

for client_name, client in clients_data.iteritems():

2431

tcp_server.clients[client_name] = client_class(

2432

name = client_name, settings = client)

2433

1976

yield (name, special_settings[name]())

1977

except KeyError:

1978

yield (name, value)

1979

1980

tcp_server.clients.update(set(

1981

client_class(name = section,

1982

config= dict(client_config_items(

1983

client_config, section)))

1984

for section in client_config.sections()))

2434

1985

if not tcp_server.clients:

2435

1986

logger.warning("No clients defined")

2436

1987

2447

1998

# "pidfile" was never created

2448

1999

pass

2449

2000

del pidfilename

2001

2450

2002

signal.signal(signal.SIGINT, signal.SIG_IGN)

2451

2003

2452

2004

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

2453

2005

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

2454

2006

2455

2007

if use_dbus:

2456

class MandosDBusService(DBusObjectWithProperties):

2008

class MandosDBusService(dbus.service.Object):

2457

2009

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

2458

2010

def __init__(self):

2459

2011

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

2460

_interface = "se.recompile.Mandos"

2461

2462

@dbus_interface_annotations(_interface)

2463

def _foo(self):

2464

return { "org.freedesktop.DBus.Property"

2465

".EmitsChangedSignal":

2466

"false"}

2012

_interface = "se.bsnet.fukt.Mandos"

2467

2013

2468

2014

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

2469

2015

def ClientAdded(self, objpath):

2484

2030

def GetAllClients(self):

2485

2031

"D-Bus method"

2486

2032

return dbus.Array(c.dbus_object_path

2487

for c in

2488

tcp_server.clients.itervalues())

2033

for c in tcp_server.clients)

2489

2034

2490

2035

@dbus.service.method(_interface,

2491

2036

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

2493

2038

"D-Bus method"

2494

2039

return dbus.Dictionary(

2495

2040

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

2496

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

2041

for c in tcp_server.clients),

2497

2042

signature="oa{sv}")

2498

2043

2499

2044

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

2500

2045

def RemoveClient(self, object_path):

2501

2046

"D-Bus method"

2502

for c in tcp_server.clients.itervalues():

2047

for c in tcp_server.clients:

2503

2048

if c.dbus_object_path == object_path:

2504

del tcp_server.clients[c.name]

2049

tcp_server.clients.remove(c)

2505

2050

c.remove_from_connection()

2506

2051

# Don't signal anything except ClientRemoved

2507

2052

c.disable(quiet=True)

2512

2057

2513

2058

del _interface

2514

2059

2515

class MandosDBusServiceTransitional(MandosDBusService):

2516

__metaclass__ = AlternateDBusNamesMetaclass

2517

mandos_dbus_service = MandosDBusServiceTransitional()

2060

mandos_dbus_service = MandosDBusService()

2518

2061

2519

2062

def cleanup():

2520

2063

"Cleanup function; run on exit"

2521

2064

service.cleanup()

2522

2065

2523

multiprocessing.active_children()

2524

if not (tcp_server.clients or client_settings):

2525

return

2526

2527

# Store client before exiting. Secrets are encrypted with key

2528

# based on what config file has. If config file is

2529

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

2530

clients = {}

2531

with PGPEngine() as pgp:

2532

for client in tcp_server.clients.itervalues():

2533

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

2534

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

2535

key)

2536

client_dict = {}

2537

2538

# A list of attributes that can not be pickled

2539

# + secret.

2540

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

2541

"checker"))

2542

for name, typ in (inspect.getmembers

2543

(dbus.service.Object)):

2544

exclude.add(name)

2545

2546

client_dict["encrypted_secret"] = (client

2547

.encrypted_secret)

2548

for attr in client.client_structure:

2549

if attr not in exclude:

2550

client_dict[attr] = getattr(client, attr)

2551

2552

clients[client.name] = client_dict

2553

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

2554

2555

try:

2556

tempfd, tempname = tempfile.mkstemp(suffix=".pickle",

2557

prefix="clients-",

2558

dir=os.path.dirname

2559

(stored_state_path))

2560

with os.fdopen(tempfd, "wb") as stored_state:

2561

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

2562

os.rename(tempname, stored_state_path)

2563

except (IOError, OSError) as e:

2564

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

2565

.format(e))

2566

if not debug:

2567

try:

2568

os.remove(tempname)

2569

except NameError:

2570

pass

2571

if e.errno not in set((errno.ENOENT, errno.EACCES,

2572

errno.EEXIST)):

2573

raise e

2574

2575

# Delete all clients, and settings from config

2576

2066

while tcp_server.clients:

2577

name, client = tcp_server.clients.popitem()

2067

client = tcp_server.clients.pop()

2578

2068

if use_dbus:

2579

2069

client.remove_from_connection()

2070

client.disable_hook = None

2580

2071

# Don't signal anything except ClientRemoved

2581

2072

client.disable(quiet=True)

2582

2073

if use_dbus:

2583

2074

# Emit D-Bus signal

2584

mandos_dbus_service.ClientRemoved(client

2585

.dbus_object_path,

2075

mandos_dbus_service.ClientRemoved(client.dbus_object_path,

2586

2076

client.name)

2587

client_settings.clear()

2588

2077

2589

2078

atexit.register(cleanup)

2590

2079

2591

for client in tcp_server.clients.itervalues():

2080

for client in tcp_server.clients:

2592

2081

if use_dbus:

2593

2082

# Emit D-Bus signal

2594

2083

mandos_dbus_service.ClientAdded(client.dbus_object_path)

2595

# Need to initiate checking of clients

2596

if client.enabled:

2597

client.init_checker()

2084

client.enable()

2598

2085

2599

2086

tcp_server.enable()

2600

2087

tcp_server.server_activate()