/mandos/trunk : revision 1288

1

#!/usr/bin/python

2

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

1

#!/usr/bin/python3 -bI

2

# -*- coding: utf-8; lexical-binding: t -*-

3

#

4

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

5

#

11

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

12

#

13

# Everything else is

14

15

14

15

16

#

17

# This file is part of Mandos.

18

#

31

#

32

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

33

#

34

35

34

from __future__ import (division, absolute_import, print_function,

36

35

unicode_literals)

37

36

40

39

except ImportError:

41

40

pass

42

41

42

import sys

43

import unittest

44

import argparse

45

import logging

46

import os

43

47

try:

44

48

import SocketServer as socketserver

45

49

except ImportError:

46

50

import socketserver

47

51

import socket

48

import argparse

49

52

import datetime

50

53

import errno

51

54

try:

52

55

import ConfigParser as configparser

53

56

except ImportError:

54

57

import configparser

55

import sys

56

58

import re

57

import os

58

59

import signal

59

60

import subprocess

60

61

import atexit

61

62

import stat

62

import logging

63

import logging.handlers

64

import pwd

65

import contextlib

77

import itertools

78

import collections

79

import codecs

80

import random

81

import shlex

80

82

81

83

import dbus

82

84

import dbus.service

85

import gi

83

86

from gi.repository import GLib

84

87

from dbus.mainloop.glib import DBusGMainLoop

85

88

import ctypes

87

90

import xml.dom.minidom

88

91

import inspect

89

92

93

if sys.version_info.major == 2:

94

__metaclass__ = type

95

str = unicode

96

input = raw_input

97

98

# Add collections.abc.Callable if it does not exist

99

try:

100

collections.abc.Callable

101

except AttributeError:

102

class abc:

103

Callable = collections.Callable

104

collections.abc = abc

105

del abc

106

107

# Add shlex.quote if it does not exist

108

try:

109

shlex.quote

110

except AttributeError:

111

shlex.quote = re.escape

112

113

# Show warnings by default

114

if not sys.warnoptions:

115

import warnings

116

warnings.simplefilter("default")

117

90

118

# Try to find the value of SO_BINDTODEVICE:

91

119

try:

92

120

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

112

140

# No value found

113

141

SO_BINDTODEVICE = None

114

142

115

if sys.version_info.major == 2:

116

str = unicode

143

if sys.version_info < (3, 2):

144

configparser.Configparser = configparser.SafeConfigParser

117

145

118

version = "1.7.16"

146

version = "1.8.16"

119

147

stored_state_file = "clients.pickle"

120

148

121

logger = logging.getLogger()

149

log = logging.getLogger(os.path.basename(sys.argv[0]))

150

logging.captureWarnings(True) # Show warnings via the logging system

122

151

syslogger = None

123

152

124

153

try:

160

189

facility=logging.handlers.SysLogHandler.LOG_DAEMON,

161

190

address="/dev/log"))

162

191

syslogger.setFormatter(logging.Formatter

163

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

164

' %(message)s'))

165

logger.addHandler(syslogger)

192

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

193

" %(message)s"))

194

log.addHandler(syslogger)

166

195

167

196

if debug:

168

197

console = logging.StreamHandler()

169

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

170

' [%(process)d]:'

171

' %(levelname)s:'

172

' %(message)s'))

173

logger.addHandler(console)

174

logger.setLevel(level)

198

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

199

" [%(process)d]:"

200

" %(levelname)s:"

201

" %(message)s"))

202

log.addHandler(console)

203

log.setLevel(level)

175

204

176

205

177

206

class PGPError(Exception):

179

208

pass

180

209

181

210

182

class PGPEngine(object):

211

class PGPEngine:

183

212

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

184

213

185

214

def __init__(self):

189

218

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

190

219

for line in output.splitlines():

191

220

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

192

if name == "gpg":

221

if name == b"gpg":

193

222

self.gpg = path

194

223

break

195

224

except OSError as e:

196

225

if e.errno != errno.ENOENT:

197

226

raise

198

self.gnupgargs = ['--batch',

199

'--homedir', self.tempdir,

200

'--force-mdc',

201

'--quiet']

227

self.gnupgargs = ["--batch",

228

"--homedir", self.tempdir,

229

"--force-mdc",

230

"--quiet"]

202

231

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

203

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

232

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

204

233

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

205

234

206

235

def __enter__(self):

243

272

dir=self.tempdir) as passfile:

244

273

passfile.write(passphrase)

245

274

passfile.flush()

246

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

247

'--passphrase-file',

275

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

276

"--passphrase-file",

248

277

passfile.name]

249

278

+ self.gnupgargs,

250

279

stdin=subprocess.PIPE,

261

290

dir=self.tempdir) as passfile:

262

291

passfile.write(passphrase)

263

292

passfile.flush()

264

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

265

'--passphrase-file',

293

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

294

"--passphrase-file",

266

295

passfile.name]

267

296

+ self.gnupgargs,

268

297

stdin=subprocess.PIPE,

275

304

276

305

277

306

# Pretend that we have an Avahi module

278

class Avahi(object):

279

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

280

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

307

class avahi:

308

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

281

309

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

282

310

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

283

311

PROTO_INET = 0 # avahi-common/address.h

287

315

DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"

288

316

DBUS_PATH_SERVER = "/"

289

317

290

def string_array_to_txt_array(self, t):

318

@staticmethod

319

def string_array_to_txt_array(t):

291

320

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

292

321

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

293

322

ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h

298

327

SERVER_RUNNING = 2 # avahi-common/defs.h

299

328

SERVER_COLLISION = 3 # avahi-common/defs.h

300

329

SERVER_FAILURE = 4 # avahi-common/defs.h

301

avahi = Avahi()

302

330

303

331

304

332

class AvahiError(Exception):

316

344

pass

317

345

318

346

319

class AvahiService(object):

347

class AvahiService:

320

348

"""An Avahi (Zeroconf) service.

321

349

322

350

Attributes:

323

351

interface: integer; avahi.IF_UNSPEC or an interface index.

324

352

Used to optionally bind to the specified interface.

325

name: string; Example: 'Mandos'

326

type: string; Example: '_mandos._tcp'.

353

name: string; Example: "Mandos"

354

type: string; Example: "_mandos._tcp".

327

355

See <https://www.iana.org/assignments/service-names-port-numbers>

328

356

port: integer; what port to announce

329

357

TXT: list of strings; TXT record for the service

366

394

def rename(self, remove=True):

367

395

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

368

396

if self.rename_count >= self.max_renames:

369

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

370

" after %i retries, exiting.",

371

self.rename_count)

397

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

398

" after %i retries, exiting.",

399

self.rename_count)

372

400

raise AvahiServiceError("Too many renames")

373

401

self.name = str(

374

402

self.server.GetAlternativeServiceName(self.name))

375

403

self.rename_count += 1

376

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

377

self.name)

404

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

405

self.name)

378

406

if remove:

379

407

self.remove()

380

408

try:

382

410

except dbus.exceptions.DBusException as error:

383

411

if (error.get_dbus_name()

384

412

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

385

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

413

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

386

414

return self.rename(remove=False)

387

415

else:

388

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

416

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

389

417

self.cleanup()

390

418

os._exit(1)

391

419

407

435

avahi.DBUS_INTERFACE_ENTRY_GROUP)

408

436

self.entry_group_state_changed_match = (

409

437

self.group.connect_to_signal(

410

'StateChanged', self.entry_group_state_changed))

411

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

412

self.name, self.type)

438

"StateChanged", self.entry_group_state_changed))

439

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

440

self.name, self.type)

413

441

self.group.AddService(

414

442

self.interface,

415

443

self.protocol,

422

450

423

451

def entry_group_state_changed(self, state, error):

424

452

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

425

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

453

log.debug("Avahi entry group state change: %i", state)

426

454

427

455

if state == avahi.ENTRY_GROUP_ESTABLISHED:

428

logger.debug("Zeroconf service established.")

456

log.debug("Zeroconf service established.")

429

457

elif state == avahi.ENTRY_GROUP_COLLISION:

430

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

458

log.info("Zeroconf service name collision.")

431

459

self.rename()

432

460

elif state == avahi.ENTRY_GROUP_FAILURE:

433

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

434

str(error))

461

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

462

str(error))

435

463

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

436

464

437

465

def cleanup(self):

447

475

448

476

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

449

477

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

450

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

478

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

451

479

bad_states = {

452

480

avahi.SERVER_INVALID: "Zeroconf server invalid",

453

481

avahi.SERVER_REGISTERING: None,

457

485

if state in bad_states:

458

486

if bad_states[state] is not None:

459

487

if error is None:

460

logger.error(bad_states[state])

488

log.error(bad_states[state])

461

489

else:

462

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

490

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

463

491

self.cleanup()

464

492

elif state == avahi.SERVER_RUNNING:

465

493

try:

467

495

except dbus.exceptions.DBusException as error:

468

496

if (error.get_dbus_name()

469

497

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

470

logger.info("Local Zeroconf service name"

471

" collision.")

498

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

472

499

return self.rename(remove=False)

473

500

else:

474

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

501

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

475

502

self.cleanup()

476

503

os._exit(1)

477

504

else:

478

505

if error is None:

479

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

506

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

480

507

else:

481

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

508

log.debug("Unknown state: %r: %r", state, error)

482

509

483

510

def activate(self):

484

511

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

496

523

class AvahiServiceToSyslog(AvahiService):

497

524

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

498

525

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

499

ret = super(AvahiServiceToSyslog, self).rename(*args, **kwargs)

526

ret = super(AvahiServiceToSyslog, self).rename(*args,

527

**kwargs)

500

528

syslogger.setFormatter(logging.Formatter(

501

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

529

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

502

530

.format(self.name)))

503

531

return ret

504

532

505

533

506

534

# Pretend that we have a GnuTLS module

507

class GnuTLS(object):

508

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

509

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

535

class gnutls:

536

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

510

537

511

538

library = ctypes.util.find_library("gnutls")

512

539

if library is None:

513

540

library = ctypes.util.find_library("gnutls-deb0")

514

541

_library = ctypes.cdll.LoadLibrary(library)

515

542

del library

516

_need_version = b"3.3.0"

517

518

def __init__(self):

519

# Need to use "self" here, since this method is called before

520

# the assignment to the "gnutls" global variable happens.

521

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

522

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

523

.format(self._need_version))

524

543

525

544

# Unless otherwise indicated, the constants and types below are

526

545

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

530

549

E_INTERRUPTED = -52

531

550

E_AGAIN = -28

532

551

CRT_OPENPGP = 2

552

CRT_RAWPK = 3

533

553

CLIENT = 2

534

554

SHUT_RDWR = 0

535

555

CRD_CERTIFICATE = 1

536

556

E_NO_CERTIFICATE_FOUND = -49

557

X509_FMT_DER = 0

558

NO_TICKETS = 1<<10

559

ENABLE_RAWPK = 1<<18

560

CTYPE_PEERS = 3

561

KEYID_USE_SHA256 = 1 # gnutls/x509.h

537

562

OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h

538

563

539

564

# Types

540

class session_int(ctypes.Structure):

565

class _session_int(ctypes.Structure):

541

566

_fields_ = []

542

session_t = ctypes.POINTER(session_int)

567

session_t = ctypes.POINTER(_session_int)

543

568

544

569

class certificate_credentials_st(ctypes.Structure):

545

570

_fields_ = []

548

573

certificate_type_t = ctypes.c_int

549

574

550

575

class datum_t(ctypes.Structure):

551

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

552

('size', ctypes.c_uint)]

576

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

577

("size", ctypes.c_uint)]

553

578

554

class openpgp_crt_int(ctypes.Structure):

579

class _openpgp_crt_int(ctypes.Structure):

555

580

_fields_ = []

556

openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)

581

openpgp_crt_t = ctypes.POINTER(_openpgp_crt_int)

557

582

openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h

558

583

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

559

584

credentials_type_t = ctypes.c_int

562

587

563

588

# Exceptions

564

589

class Error(Exception):

565

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

566

# exception might be raised from within GnuTLS.__init__,

567

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

568

# global variable has happened.

569

590

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

570

591

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

571

592

# code is passed, convert it to a string with

572

593

# gnutls.strerror()

573

594

self.code = code

574

595

if message is None and code is not None:

575

message = GnuTLS.strerror(code)

576

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

596

message = gnutls.strerror(code).decode(

597

"utf-8", errors="replace")

598

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

577

599

message, *args)

578

600

579

601

class CertificateSecurityError(Error):

580

602

pass

581

603

604

class PointerTo:

605

def __init__(self, cls):

606

self.cls = cls

607

608

def from_param(self, obj):

609

if not isinstance(obj, self.cls):

610

raise TypeError("Not of type {}: {!r}"

611

.format(self.cls.__name__, obj))

612

return ctypes.byref(obj.from_param(obj))

613

614

class CastToVoidPointer:

615

def __init__(self, cls):

616

self.cls = cls

617

618

def from_param(self, obj):

619

if not isinstance(obj, self.cls):

620

raise TypeError("Not of type {}: {!r}"

621

.format(self.cls.__name__, obj))

622

return ctypes.cast(obj.from_param(obj), ctypes.c_void_p)

623

624

class With_from_param:

625

@classmethod

626

def from_param(cls, obj):

627

return obj._as_parameter_

628

582

629

# Classes

583

class Credentials(object):

630

class Credentials(With_from_param):

584

631

def __init__(self):

585

self._c_object = gnutls.certificate_credentials_t()

586

gnutls.certificate_allocate_credentials(

587

ctypes.byref(self._c_object))

632

self._as_parameter_ = gnutls.certificate_credentials_t()

633

gnutls.certificate_allocate_credentials(self)

588

634

self.type = gnutls.CRD_CERTIFICATE

589

635

590

636

def __del__(self):

591

gnutls.certificate_free_credentials(self._c_object)

637

gnutls.certificate_free_credentials(self)

592

638

593

class ClientSession(object):

639

class ClientSession(With_from_param):

594

640

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

595

self._c_object = gnutls.session_t()

596

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

597

gnutls.set_default_priority(self._c_object)

598

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

599

gnutls.handshake_set_private_extensions(self._c_object,

600

True)

641

self._as_parameter_ = gnutls.session_t()

642

gnutls_flags = gnutls.CLIENT

643

if gnutls.check_version(b"3.5.6"):

644

gnutls_flags |= gnutls.NO_TICKETS

645

if gnutls.has_rawpk:

646

gnutls_flags |= gnutls.ENABLE_RAWPK

647

gnutls.init(self, gnutls_flags)

648

del gnutls_flags

649

gnutls.set_default_priority(self)

650

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

651

gnutls.handshake_set_private_extensions(self, True)

601

652

self.socket = socket

602

653

if credentials is None:

603

654

credentials = gnutls.Credentials()

604

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

605

ctypes.cast(credentials._c_object,

606

ctypes.c_void_p))

655

gnutls.credentials_set(self, credentials.type,

656

credentials)

607

657

self.credentials = credentials

608

658

609

659

def __del__(self):

610

gnutls.deinit(self._c_object)

660

gnutls.deinit(self)

611

661

612

662

def handshake(self):

613

return gnutls.handshake(self._c_object)

663

return gnutls.handshake(self)

614

664

615

665

def send(self, data):

616

666

data = bytes(data)

617

667

data_len = len(data)

618

668

while data_len > 0:

619

data_len -= gnutls.record_send(self._c_object,

620

data[-data_len:],

669

data_len -= gnutls.record_send(self, data[-data_len:],

621

670

data_len)

622

671

623

672

def bye(self):

624

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

673

return gnutls.bye(self, gnutls.SHUT_RDWR)

625

674

626

675

# Error handling functions

627

676

def _error_code(result):

628

677

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

629

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

630

if result >= 0:

678

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

679

if result >= gnutls.E_SUCCESS:

631

680

return result

632

681

if result == gnutls.E_NO_CERTIFICATE_FOUND:

633

682

raise gnutls.CertificateSecurityError(code=result)

634

683

raise gnutls.Error(code=result)

635

684

636

def _retry_on_error(result, func, arguments):

685

def _retry_on_error(result, func, arguments,

686

_error_code=_error_code):

637

687

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

638

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

639

while result < 0:

688

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

689

while result < gnutls.E_SUCCESS:

640

690

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

641

691

return _error_code(result)

642

692

result = func(*arguments)

647

697

648

698

# Functions

649

699

priority_set_direct = _library.gnutls_priority_set_direct

650

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

700

priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,

651

701

ctypes.POINTER(ctypes.c_char_p)]

652

702

priority_set_direct.restype = _error_code

653

703

654

704

init = _library.gnutls_init

655

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

705

init.argtypes = [PointerTo(ClientSession), ctypes.c_int]

656

706

init.restype = _error_code

657

707

658

708

set_default_priority = _library.gnutls_set_default_priority

659

set_default_priority.argtypes = [session_t]

709

set_default_priority.argtypes = [ClientSession]

660

710

set_default_priority.restype = _error_code

661

711

662

712

record_send = _library.gnutls_record_send

663

record_send.argtypes = [session_t, ctypes.c_void_p,

713

record_send.argtypes = [ClientSession, ctypes.c_void_p,

664

714

ctypes.c_size_t]

665

715

record_send.restype = ctypes.c_ssize_t

666

716

record_send.errcheck = _retry_on_error

668

718

certificate_allocate_credentials = (

669

719

_library.gnutls_certificate_allocate_credentials)

670

720

certificate_allocate_credentials.argtypes = [

671

ctypes.POINTER(certificate_credentials_t)]

721

PointerTo(Credentials)]

672

722

certificate_allocate_credentials.restype = _error_code

673

723

674

724

certificate_free_credentials = (

675

725

_library.gnutls_certificate_free_credentials)

676

certificate_free_credentials.argtypes = [

677

certificate_credentials_t]

726

certificate_free_credentials.argtypes = [Credentials]

678

727

certificate_free_credentials.restype = None

679

728

680

729

handshake_set_private_extensions = (

681

730

_library.gnutls_handshake_set_private_extensions)

682

handshake_set_private_extensions.argtypes = [session_t,

731

handshake_set_private_extensions.argtypes = [ClientSession,

683

732

ctypes.c_int]

684

733

handshake_set_private_extensions.restype = None

685

734

686

735

credentials_set = _library.gnutls_credentials_set

687

credentials_set.argtypes = [session_t, credentials_type_t,

688

ctypes.c_void_p]

736

credentials_set.argtypes = [ClientSession, credentials_type_t,

737

CastToVoidPointer(Credentials)]

689

738

credentials_set.restype = _error_code

690

739

691

740

strerror = _library.gnutls_strerror

693

742

strerror.restype = ctypes.c_char_p

694

743

695

744

certificate_type_get = _library.gnutls_certificate_type_get

696

certificate_type_get.argtypes = [session_t]

745

certificate_type_get.argtypes = [ClientSession]

697

746

certificate_type_get.restype = _error_code

698

747

699

748

certificate_get_peers = _library.gnutls_certificate_get_peers

700

certificate_get_peers.argtypes = [session_t,

749

certificate_get_peers.argtypes = [ClientSession,

701

750

ctypes.POINTER(ctypes.c_uint)]

702

751

certificate_get_peers.restype = ctypes.POINTER(datum_t)

703

752

710

759

global_set_log_function.restype = None

711

760

712

761

deinit = _library.gnutls_deinit

713

deinit.argtypes = [session_t]

762

deinit.argtypes = [ClientSession]

714

763

deinit.restype = None

715

764

716

765

handshake = _library.gnutls_handshake

717

handshake.argtypes = [session_t]

718

handshake.restype = _error_code

766

handshake.argtypes = [ClientSession]

767

handshake.restype = ctypes.c_int

719

768

handshake.errcheck = _retry_on_error

720

769

721

770

transport_set_ptr = _library.gnutls_transport_set_ptr

722

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

771

transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]

723

772

transport_set_ptr.restype = None

724

773

725

774

bye = _library.gnutls_bye

726

bye.argtypes = [session_t, close_request_t]

727

bye.restype = _error_code

775

bye.argtypes = [ClientSession, close_request_t]

776

bye.restype = ctypes.c_int

728

777

bye.errcheck = _retry_on_error

729

778

730

779

check_version = _library.gnutls_check_version

731

780

check_version.argtypes = [ctypes.c_char_p]

732

781

check_version.restype = ctypes.c_char_p

733

782

734

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

735

736

openpgp_crt_init = _library.gnutls_openpgp_crt_init

737

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

738

openpgp_crt_init.restype = _error_code

739

740

openpgp_crt_import = _library.gnutls_openpgp_crt_import

741

openpgp_crt_import.argtypes = [openpgp_crt_t,

742

ctypes.POINTER(datum_t),

743

openpgp_crt_fmt_t]

744

openpgp_crt_import.restype = _error_code

745

746

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

747

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

748

ctypes.POINTER(ctypes.c_uint)]

749

openpgp_crt_verify_self.restype = _error_code

750

751

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

752

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

753

openpgp_crt_deinit.restype = None

754

755

openpgp_crt_get_fingerprint = (

756

_library.gnutls_openpgp_crt_get_fingerprint)

757

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

758

ctypes.c_void_p,

759

ctypes.POINTER(

760

ctypes.c_size_t)]

761

openpgp_crt_get_fingerprint.restype = _error_code

783

_need_version = b"3.3.0"

784

if check_version(_need_version) is None:

785

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

786

.format(_need_version))

787

788

_tls_rawpk_version = b"3.6.6"

789

has_rawpk = bool(check_version(_tls_rawpk_version))

790

791

if has_rawpk:

792

# Types

793

class pubkey_st(ctypes.Structure):

794

_fields = []

795

pubkey_t = ctypes.POINTER(pubkey_st)

796

797

x509_crt_fmt_t = ctypes.c_int

798

799

# All the function declarations below are from

800

# gnutls/abstract.h

801

pubkey_init = _library.gnutls_pubkey_init

802

pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]

803

pubkey_init.restype = _error_code

804

805

pubkey_import = _library.gnutls_pubkey_import

806

pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),

807

x509_crt_fmt_t]

808

pubkey_import.restype = _error_code

809

810

pubkey_get_key_id = _library.gnutls_pubkey_get_key_id

811

pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,

812

ctypes.POINTER(ctypes.c_ubyte),

813

ctypes.POINTER(ctypes.c_size_t)]

814

pubkey_get_key_id.restype = _error_code

815

816

pubkey_deinit = _library.gnutls_pubkey_deinit

817

pubkey_deinit.argtypes = [pubkey_t]

818

pubkey_deinit.restype = None

819

else:

820

# All the function declarations below are from

821

# gnutls/openpgp.h

822

823

openpgp_crt_init = _library.gnutls_openpgp_crt_init

824

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

825

openpgp_crt_init.restype = _error_code

826

827

openpgp_crt_import = _library.gnutls_openpgp_crt_import

828

openpgp_crt_import.argtypes = [openpgp_crt_t,

829

ctypes.POINTER(datum_t),

830

openpgp_crt_fmt_t]

831

openpgp_crt_import.restype = _error_code

832

833

openpgp_crt_verify_self = \

834

_library.gnutls_openpgp_crt_verify_self

835

openpgp_crt_verify_self.argtypes = [

836

openpgp_crt_t,

837

ctypes.c_uint,

838

ctypes.POINTER(ctypes.c_uint),

839

]

840

openpgp_crt_verify_self.restype = _error_code

841

842

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

843

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

844

openpgp_crt_deinit.restype = None

845

846

openpgp_crt_get_fingerprint = (

847

_library.gnutls_openpgp_crt_get_fingerprint)

848

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

849

ctypes.c_void_p,

850

ctypes.POINTER(

851

ctypes.c_size_t)]

852

openpgp_crt_get_fingerprint.restype = _error_code

853

854

if check_version(b"3.6.4"):

855

certificate_type_get2 = _library.gnutls_certificate_type_get2

856

certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]

857

certificate_type_get2.restype = _error_code

762

858

763

859

# Remove non-public functions

764

860

del _error_code, _retry_on_error

765

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

766

gnutls = GnuTLS()

767

861

768

862

769

863

def call_pipe(connection, # : multiprocessing.Connection

777

871

connection.close()

778

872

779

873

780

class Client(object):

874

class Client:

781

875

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

782

876

783

877

Attributes:

784

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

878

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

785

879

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

786

880

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

787

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

788

to see if the client lives.

789

'None' if no process is running.

881

checker: multiprocessing.Process(); a running checker process used

882

to see if the client lives. None if no process is

883

running.

790

884

checker_callback_tag: a GLib event source tag, or None

791

885

checker_command: string; External command which is run to check

792

886

if client lives. %() expansions are done at

800

894

disable_initiator_tag: a GLib event source tag, or None

801

895

enabled: bool()

802

896

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

803

uniquely identify the client

897

uniquely identify an OpenPGP client

898

key_id: string (64 hexadecimal digits); used to uniquely identify

899

a client using raw public keys

804

900

host: string; available for use by the checker command

805

901

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

806

902

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

824

920

"""

825

921

826

922

runtime_expansions = ("approval_delay", "approval_duration",

827

"created", "enabled", "expires",

923

"created", "enabled", "expires", "key_id",

828

924

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

829

925

"last_approval_request", "last_checked_ok",

830

926

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

860

956

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

861

957

"enabled")

862

958

863

# Uppercase and remove spaces from fingerprint for later

864

# comparison purposes with return value from the

865

# fingerprint() function

866

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

959

# Uppercase and remove spaces from key_id and fingerprint

960

# for later comparison purposes with return value from the

961

# key_id() and fingerprint() functions

962

client["key_id"] = (section.get("key_id", "").upper()

963

.replace(" ", ""))

964

client["fingerprint"] = (section.get("fingerprint",

965

"").upper()

867

966

.replace(" ", ""))

967

if not (client["key_id"] or client["fingerprint"]):

968

log.error("Skipping client %s without key_id or"

969

" fingerprint", client_name)

970

del settings[client_name]

971

continue

868

972

if "secret" in section:

869

973

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

870

974

.encode("utf-8"),

911

1015

self.last_enabled = None

912

1016

self.expires = None

913

1017

914

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

915

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

1018

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

1019

log.debug(" Key ID: %s", self.key_id)

1020

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

916

1021

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

917

1022

datetime.datetime.utcnow())

918

1023

946

1051

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

947

1052

# Already enabled

948

1053

return

949

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

950

1054

self.enabled = True

951

1055

self.last_enabled = datetime.datetime.utcnow()

952

1056

self.init_checker()

957

1061

if not getattr(self, "enabled", False):

958

1062

return False

959

1063

if not quiet:

960

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

1064

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

961

1065

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

962

1066

GLib.source_remove(self.disable_initiator_tag)

963

1067

self.disable_initiator_tag = None

975

1079

def __del__(self):

976

1080

self.disable()

977

1081

978

def init_checker(self):

979

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

980

# and every interval from then on.

1082

def init_checker(self, randomize_start=False):

1083

# Schedule a new checker to be started a randomly selected

1084

# time (a fraction of 'interval') from now. This spreads out

1085

# the startup of checkers over time when the server is

1086

# started.

981

1087

if self.checker_initiator_tag is not None:

982

1088

GLib.source_remove(self.checker_initiator_tag)

1089

interval_milliseconds = int(self.interval.total_seconds()

1090

* 1000)

1091

if randomize_start:

1092

delay_milliseconds = random.randrange(

1093

interval_milliseconds + 1)

1094

else:

1095

delay_milliseconds = interval_milliseconds

983

1096

self.checker_initiator_tag = GLib.timeout_add(

984

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

985

self.start_checker)

986

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

1097

delay_milliseconds, self.start_checker, randomize_start)

1098

delay = datetime.timedelta(0, 0, 0, delay_milliseconds)

1099

# A checker might take up to an 'interval' of time, so we can

1100

# expire at the soonest one interval after a checker was

1101

# started. Since the initial checker is delayed, the expire

1102

# time might have to be extended.

1103

now = datetime.datetime.utcnow()

1104

self.expires = now + delay + self.interval

1105

# Schedule a disable() at expire time

987

1106

if self.disable_initiator_tag is not None:

988

1107

GLib.source_remove(self.disable_initiator_tag)

989

1108

self.disable_initiator_tag = GLib.timeout_add(

990

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

991

# Also start a new checker *right now*.

992

self.start_checker()

1109

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

1110

self.disable)

993

1111

994

1112

def checker_callback(self, source, condition, connection,

995

1113

command):

996

1114

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

997

self.checker_callback_tag = None

998

self.checker = None

999

1115

# Read return code from connection (see call_pipe)

1000

1116

returncode = connection.recv()

1001

1117

connection.close()

1118

if self.checker is not None:

1119

self.checker.join()

1120

self.checker_callback_tag = None

1121

self.checker = None

1002

1122

1003

1123

if returncode >= 0:

1004

1124

self.last_checker_status = returncode

1005

1125

self.last_checker_signal = None

1006

1126

if self.last_checker_status == 0:

1007

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

1008

vars(self))

1127

log.info("Checker for %(name)s succeeded", vars(self))

1009

1128

self.checked_ok()

1010

1129

else:

1011

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

1130

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

1012

1131

else:

1013

1132

self.last_checker_status = -1

1014

1133

self.last_checker_signal = -returncode

1015

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

1016

vars(self))

1134

log.warning("Checker for %(name)s crashed?", vars(self))

1017

1135

return False

1018

1136

1019

1137

def checked_ok(self):

1038

1156

def need_approval(self):

1039

1157

self.last_approval_request = datetime.datetime.utcnow()

1040

1158

1041

def start_checker(self):

1159

def start_checker(self, start_was_randomized=False):

1042

1160

"""Start a new checker subprocess if one is not running.

1043

1161

1044

1162

If a checker already exists, leave it running and do

1053

1171

# should be.

1054

1172

1055

1173

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

1056

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

1174

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

1057

1175

self.checker.join()

1058

1176

self.checker = None

1059

1177

# Start a new checker if needed

1060

1178

if self.checker is None:

1061

1179

# Escape attributes for the shell

1062

1180

escaped_attrs = {

1063

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

1181

attr: shlex.quote(str(getattr(self, attr)))

1064

1182

for attr in self.runtime_expansions}

1065

1183

try:

1066

1184

command = self.checker_command % escaped_attrs

1067

1185

except TypeError as error:

1068

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

1069

self.checker_command,

1070

exc_info=error)

1186

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

1187

self.checker_command, exc_info=error)

1071

1188

return True # Try again later

1072

1189

self.current_checker_command = command

1073

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

1074

self.name)

1190

log.info("Starting checker %r for %s", command, self.name)

1075

1191

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

1076

1192

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

1077

1193

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

1093

1209

kwargs=popen_args)

1094

1210

self.checker.start()

1095

1211

self.checker_callback_tag = GLib.io_add_watch(

1096

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

1212

GLib.IOChannel.unix_new(pipe[0].fileno()),

1213

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

1097

1214

self.checker_callback, pipe[0], command)

1215

if start_was_randomized:

1216

# We were started after a random delay; Schedule a new

1217

# checker to be started an 'interval' from now, and every

1218

# interval from then on.

1219

now = datetime.datetime.utcnow()

1220

self.checker_initiator_tag = GLib.timeout_add(

1221

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

1222

self.start_checker)

1223

self.expires = max(self.expires, now + self.interval)

1224

# Don't start a new checker again after same random delay

1225

return False

1098

1226

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

1099

1227

return True

1100

1228

1105

1233

self.checker_callback_tag = None

1106

1234

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

1107

1235

return

1108

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

1236

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

1109

1237

self.checker.terminate()

1110

1238

self.checker = None

1111

1239

1138

1266

func._dbus_name = func.__name__

1139

1267

if func._dbus_name.endswith("_dbus_property"):

1140

1268

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

1141

func._dbus_get_args_options = {'byte_arrays': byte_arrays}

1269

func._dbus_get_args_options = {"byte_arrays": byte_arrays}

1142

1270

return func

1143

1271

1144

1272

return decorator

1233

1361

1234

1362

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1235

1363

out_signature="s",

1236

path_keyword='object_path',

1237

connection_keyword='connection')

1364

path_keyword="object_path",

1365

connection_keyword="connection")

1238

1366

def Introspect(self, object_path, connection):

1239

1367

"""Overloading of standard D-Bus method.

1240

1368

1289

1417

document.unlink()

1290

1418

except (AttributeError, xml.dom.DOMException,

1291

1419

xml.parsers.expat.ExpatError) as error:

1292

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

1293

exc_info=error)

1420

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

1421

exc_info=error)

1294

1422

return xmlstring

1295

1423

1296

1424

1354

1482

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

1355

1483

"'ay' signature {!r}"

1356

1484

.format(prop._dbus_signature))

1357

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

1358

for byte in value))

1485

value = dbus.ByteArray(bytes(value))

1359

1486

prop(value)

1360

1487

1361

1488

@dbus.service.method(dbus.PROPERTIES_IFACE,

1394

1521

1395

1522

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1396

1523

out_signature="s",

1397

path_keyword='object_path',

1398

connection_keyword='connection')

1524

path_keyword="object_path",

1525

connection_keyword="connection")

1399

1526

def Introspect(self, object_path, connection):

1400

1527

"""Overloading of standard D-Bus method.

1401

1528

1457

1584

document.unlink()

1458

1585

except (AttributeError, xml.dom.DOMException,

1459

1586

xml.parsers.expat.ExpatError) as error:

1460

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

1461

exc_info=error)

1587

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

1588

exc_info=error)

1462

1589

return xmlstring

1463

1590

1464

1591

1496

1623

1497

1624

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1498

1625

out_signature="s",

1499

path_keyword='object_path',

1500

connection_keyword='connection')

1626

path_keyword="object_path",

1627

connection_keyword="connection")

1501

1628

def Introspect(self, object_path, connection):

1502

1629

"""Overloading of standard D-Bus method.

1503

1630

1528

1655

document.unlink()

1529

1656

except (AttributeError, xml.dom.DOMException,

1530

1657

xml.parsers.expat.ExpatError) as error:

1531

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

1532

exc_info=error)

1658

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

1659

exc_info=error)

1533

1660

return xmlstring

1534

1661

1535

1662

1999

2126

def Name_dbus_property(self):

2000

2127

return dbus.String(self.name)

2001

2128

2129

# KeyID - property

2130

@dbus_annotations(

2131

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

2132

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

2133

def KeyID_dbus_property(self):

2134

return dbus.String(self.key_id)

2135

2002

2136

# Fingerprint - property

2003

2137

@dbus_annotations(

2004

2138

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

2159

2293

del _interface

2160

2294

2161

2295

2162

class ProxyClient(object):

2163

def __init__(self, child_pipe, fpr, address):

2296

class ProxyClient:

2297

def __init__(self, child_pipe, key_id, fpr, address):

2164

2298

self._pipe = child_pipe

2165

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

2299

self._pipe.send(("init", key_id, fpr, address))

2166

2300

if not self._pipe.recv():

2167

raise KeyError(fpr)

2301

raise KeyError(key_id or fpr)

2168

2302

2169

2303

def __getattribute__(self, name):

2170

if name == '_pipe':

2304

if name == "_pipe":

2171

2305

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

2172

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

2306

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

2173

2307

data = self._pipe.recv()

2174

if data[0] == 'data':

2308

if data[0] == "data":

2175

2309

return data[1]

2176

if data[0] == 'function':

2310

if data[0] == "function":

2177

2311

2178

2312

def func(*args, **kwargs):

2179

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

2313

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

2180

2314

return self._pipe.recv()[1]

2181

2315

2182

2316

return func

2183

2317

2184

2318

def __setattr__(self, name, value):

2185

if name == '_pipe':

2319

if name == "_pipe":

2186

2320

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

2187

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

2321

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

2188

2322

2189

2323

2190

2324

class ClientHandler(socketserver.BaseRequestHandler, object):

2195

2329

2196

2330

def handle(self):

2197

2331

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

2198

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

2199

str(self.client_address))

2200

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

2201

self.server.child_pipe.fileno())

2332

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

2333

str(self.client_address))

2334

log.debug("Pipe FD: %d", self.server.child_pipe.fileno())

2202

2335

2203

2336

session = gnutls.ClientSession(self.request)

2204

2337

2205

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

2338

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

2206

2339

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

2207

2340

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

2208

2341

# "+DHE-DSS"))

2210

2343

priority = self.server.gnutls_priority

2211

2344

if priority is None:

2212

2345

priority = "NORMAL"

2213

gnutls.priority_set_direct(session._c_object,

2214

priority.encode("utf-8"),

2215

None)

2346

gnutls.priority_set_direct(session,

2347

priority.encode("utf-8"), None)

2216

2348

2217

2349

# Start communication using the Mandos protocol

2218

2350

# Get protocol number

2219

2351

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

2220

logger.debug("Protocol version: %r", line)

2352

log.debug("Protocol version: %r", line)

2221

2353

try:

2222

2354

if int(line.strip().split()[0]) > 1:

2223

2355

raise RuntimeError(line)

2224

2356

except (ValueError, IndexError, RuntimeError) as error:

2225

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

2357

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

2226

2358

return

2227

2359

2228

2360

# Start GnuTLS connection

2229

2361

try:

2230

2362

session.handshake()

2231

2363

except gnutls.Error as error:

2232

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

2364

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

2233

2365

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

2234

2366

# established. Just abandon the request.

2235

2367

return

2236

logger.debug("Handshake succeeded")

2368

log.debug("Handshake succeeded")

2237

2369

2238

2370

approval_required = False

2239

2371

try:

2240

try:

2241

fpr = self.fingerprint(

2242

self.peer_certificate(session))

2243

except (TypeError, gnutls.Error) as error:

2244

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

2245

return

2246

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

2247

2248

try:

2249

client = ProxyClient(child_pipe, fpr,

2372

if gnutls.has_rawpk:

2373

fpr = b""

2374

try:

2375

key_id = self.key_id(

2376

self.peer_certificate(session))

2377

except (TypeError, gnutls.Error) as error:

2378

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

2379

return

2380

log.debug("Key ID: %s",

2381

key_id.decode("utf-8",

2382

errors="replace"))

2383

2384

else:

2385

key_id = b""

2386

try:

2387

fpr = self.fingerprint(

2388

self.peer_certificate(session))

2389

except (TypeError, gnutls.Error) as error:

2390

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

2391

return

2392

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

2393

2394

try:

2395

client = ProxyClient(child_pipe, key_id, fpr,

2250

2396

self.client_address)

2251

2397

except KeyError:

2252

2398

return

2258

2404

2259

2405

while True:

2260

2406

if not client.enabled:

2261

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

2262

client.name)

2407

log.info("Client %s is disabled", client.name)

2263

2408

if self.server.use_dbus:

2264

2409

# Emit D-Bus signal

2265

2410

client.Rejected("Disabled")

2269

2414

# We are approved or approval is disabled

2270

2415

break

2271

2416

elif client.approved is None:

2272

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

2273

client.name)

2417

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

2418

client.name)

2274

2419

if self.server.use_dbus:

2275

2420

# Emit D-Bus signal

2276

2421

client.NeedApproval(

2277

2422

client.approval_delay.total_seconds()

2278

2423

* 1000, client.approved_by_default)

2279

2424

else:

2280

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

2281

client.name)

2425

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

2426

client.name)

2282

2427

if self.server.use_dbus:

2283

2428

# Emit D-Bus signal

2284

2429

client.Rejected("Denied")

2292

2437

time2 = datetime.datetime.now()

2293

2438

if (time2 - time) >= delay:

2294

2439

if not client.approved_by_default:

2295

logger.warning("Client %s timed out while"

2296

" waiting for approval",

2297

client.name)

2440

log.warning("Client %s timed out while"

2441

" waiting for approval",

2442

client.name)

2298

2443

if self.server.use_dbus:

2299

2444

# Emit D-Bus signal

2300

2445

client.Rejected("Approval timed out")

2307

2452

try:

2308

2453

session.send(client.secret)

2309

2454

except gnutls.Error as error:

2310

logger.warning("gnutls send failed",

2311

exc_info=error)

2455

log.warning("gnutls send failed", exc_info=error)

2312

2456

return

2313

2457

2314

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

2458

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

2315

2459

# bump the timeout using extended_timeout

2316

2460

client.bump_timeout(client.extended_timeout)

2317

2461

if self.server.use_dbus:

2324

2468

try:

2325

2469

session.bye()

2326

2470

except gnutls.Error as error:

2327

logger.warning("GnuTLS bye failed",

2328

exc_info=error)

2471

log.warning("GnuTLS bye failed", exc_info=error)

2329

2472

2330

2473

@staticmethod

2331

2474

def peer_certificate(session):

2332

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

2333

# If not an OpenPGP certificate...

2334

if (gnutls.certificate_type_get(session._c_object)

2335

!= gnutls.CRT_OPENPGP):

2475

"Return the peer's certificate as a bytestring"

2476

try:

2477

cert_type = gnutls.certificate_type_get2(

2478

session, gnutls.CTYPE_PEERS)

2479

except AttributeError:

2480

cert_type = gnutls.certificate_type_get(session)

2481

if gnutls.has_rawpk:

2482

valid_cert_types = frozenset((gnutls.CRT_RAWPK,))

2483

else:

2484

valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))

2485

# If not a valid certificate type...

2486

if cert_type not in valid_cert_types:

2487

log.info("Cert type %r not in %r", cert_type,

2488

valid_cert_types)

2336

2489

# ...return invalid data

2337

2490

return b""

2338

2491

list_size = ctypes.c_uint(1)

2339

2492

cert_list = (gnutls.certificate_get_peers

2340

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

2493

(session, ctypes.byref(list_size)))

2341

2494

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

2342

2495

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

2343

2496

if list_size.value == 0:

2346

2499

return ctypes.string_at(cert.data, cert.size)

2347

2500

2348

2501

@staticmethod

2502

def key_id(certificate):

2503

"Convert a certificate bytestring to a hexdigit key ID"

2504

# New GnuTLS "datum" with the public key

2505

datum = gnutls.datum_t(

2506

ctypes.cast(ctypes.c_char_p(certificate),

2507

ctypes.POINTER(ctypes.c_ubyte)),

2508

ctypes.c_uint(len(certificate)))

2509

# XXX all these need to be created in the gnutls "module"

2510

# New empty GnuTLS certificate

2511

pubkey = gnutls.pubkey_t()

2512

gnutls.pubkey_init(ctypes.byref(pubkey))

2513

# Import the raw public key into the certificate

2514

gnutls.pubkey_import(pubkey,

2515

ctypes.byref(datum),

2516

gnutls.X509_FMT_DER)

2517

# New buffer for the key ID

2518

buf = ctypes.create_string_buffer(32)

2519

buf_len = ctypes.c_size_t(len(buf))

2520

# Get the key ID from the raw public key into the buffer

2521

gnutls.pubkey_get_key_id(

2522

pubkey,

2523

gnutls.KEYID_USE_SHA256,

2524

ctypes.cast(ctypes.byref(buf),

2525

ctypes.POINTER(ctypes.c_ubyte)),

2526

ctypes.byref(buf_len))

2527

# Deinit the certificate

2528

gnutls.pubkey_deinit(pubkey)

2529

2530

# Convert the buffer to a Python bytestring

2531

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

2532

# Convert the bytestring to hexadecimal notation

2533

hex_key_id = binascii.hexlify(key_id).upper()

2534

return hex_key_id

2535

2536

@staticmethod

2349

2537

def fingerprint(openpgp):

2350

2538

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

2351

2539

# New GnuTLS "datum" with the OpenPGP public key

2365

2553

ctypes.byref(crtverify))

2366

2554

if crtverify.value != 0:

2367

2555

gnutls.openpgp_crt_deinit(crt)

2368

raise gnutls.CertificateSecurityError("Verify failed")

2556

raise gnutls.CertificateSecurityError(code

2557

=crtverify.value)

2369

2558

# New buffer for the fingerprint

2370

2559

buf = ctypes.create_string_buffer(20)

2371

2560

buf_len = ctypes.c_size_t()

2381

2570

return hex_fpr

2382

2571

2383

2572

2384

class MultiprocessingMixIn(object):

2573

class MultiprocessingMixIn:

2385

2574

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

2386

2575

2387

2576

def sub_process_main(self, request, address):

2399

2588

return proc

2400

2589

2401

2590

2402

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

2591

class MultiprocessingMixInWithPipe(MultiprocessingMixIn):

2403

2592

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

2404

2593

2405

2594

def process_request(self, request, client_address):

2420

2609

2421

2610

2422

2611

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

2423

socketserver.TCPServer, object):

2424

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

2612

socketserver.TCPServer):

2613

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

2425

2614

2426

2615

Attributes:

2427

2616

enabled: Boolean; whether this server is activated yet

2478

2667

if SO_BINDTODEVICE is None:

2479

2668

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

2480

2669

# common enough.

2481

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

2670

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

2482

2671

SO_BINDTODEVICE = 25

2483

2672

try:

2484

2673

self.socket.setsockopt(

2486

2675

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

2487

2676

except socket.error as error:

2488

2677

if error.errno == errno.EPERM:

2489

logger.error("No permission to bind to"

2490

" interface %s", self.interface)

2678

log.error("No permission to bind to interface %s",

2679

self.interface)

2491

2680

elif error.errno == errno.ENOPROTOOPT:

2492

logger.error("SO_BINDTODEVICE not available;"

2493

" cannot bind to interface %s",

2494

self.interface)

2681

log.error("SO_BINDTODEVICE not available; cannot"

2682

" bind to interface %s", self.interface)

2495

2683

elif error.errno == errno.ENODEV:

2496

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

2497

" cannot bind", self.interface)

2684

log.error("Interface %s does not exist, cannot"

2685

" bind", self.interface)

2498

2686

else:

2499

2687

raise

2500

2688

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

2501

2689

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

2690

if self.server_address[1]:

2691

self.allow_reuse_address = True

2502

2692

if not self.server_address[0]:

2503

2693

if self.address_family == socket.AF_INET6:

2504

2694

any_address = "::" # in6addr_any

2557

2747

def add_pipe(self, parent_pipe, proc):

2558

2748

# Call "handle_ipc" for both data and EOF events

2559

2749

GLib.io_add_watch(

2560

parent_pipe.fileno(),

2561

GLib.IO_IN | GLib.IO_HUP,

2750

GLib.IOChannel.unix_new(parent_pipe.fileno()),

2751

GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,

2562

2752

functools.partial(self.handle_ipc,

2563

2753

parent_pipe=parent_pipe,

2564

2754

proc=proc))

2577

2767

request = parent_pipe.recv()

2578

2768

command = request[0]

2579

2769

2580

if command == 'init':

2581

fpr = request[1].decode("ascii")

2582

address = request[2]

2770

if command == "init":

2771

key_id = request[1].decode("ascii")

2772

fpr = request[2].decode("ascii")

2773

address = request[3]

2583

2774

2584

2775

for c in self.clients.values():

2585

if c.fingerprint == fpr:

2776

if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"

2777

"27AE41E4649B934CA495991B7852B855"):

2778

continue

2779

if key_id and c.key_id == key_id:

2780

client = c

2781

break

2782

if fpr and c.fingerprint == fpr:

2586

2783

client = c

2587

2784

break

2588

2785

else:

2589

logger.info("Client not found for fingerprint: %s, ad"

2590

"dress: %s", fpr, address)

2786

log.info("Client not found for key ID: %s, address:"

2787

" %s", key_id or fpr, address)

2591

2788

if self.use_dbus:

2592

2789

# Emit D-Bus signal

2593

mandos_dbus_service.ClientNotFound(fpr,

2790

mandos_dbus_service.ClientNotFound(key_id or fpr,

2594

2791

address[0])

2595

2792

parent_pipe.send(False)

2596

2793

return False

2597

2794

2598

2795

GLib.io_add_watch(

2599

parent_pipe.fileno(),

2600

GLib.IO_IN | GLib.IO_HUP,

2796

GLib.IOChannel.unix_new(parent_pipe.fileno()),

2797

GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,

2601

2798

functools.partial(self.handle_ipc,

2602

2799

parent_pipe=parent_pipe,

2603

2800

proc=proc,

2606

2803

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

2607

2804

# same fileno

2608

2805

return False

2609

if command == 'funcall':

2806

if command == "funcall":

2610

2807

funcname = request[1]

2611

2808

args = request[2]

2612

2809

kwargs = request[3]

2613

2810

2614

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

2811

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

2615

2812

funcname)(*args,

2616

2813

**kwargs)))

2617

2814

2618

if command == 'getattr':

2815

if command == "getattr":

2619

2816

attrname = request[1]

2620

2817

if isinstance(client_object.__getattribute__(attrname),

2621

collections.Callable):

2622

parent_pipe.send(('function', ))

2818

collections.abc.Callable):

2819

parent_pipe.send(("function", ))

2623

2820

else:

2624

2821

parent_pipe.send((

2625

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

2822

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

2626

2823

2627

if command == 'setattr':

2824

if command == "setattr":

2628

2825

attrname = request[1]

2629

2826

value = request[2]

2630

2827

setattr(client_object, attrname, value)

2635

2832

def rfc3339_duration_to_delta(duration):

2636

2833

"""Parse an RFC 3339 "duration" and return a datetime.timedelta

2637

2834

2638

>>> rfc3339_duration_to_delta("P7D")

2639

datetime.timedelta(7)

2640

>>> rfc3339_duration_to_delta("PT60S")

2641

datetime.timedelta(0, 60)

2642

>>> rfc3339_duration_to_delta("PT60M")

2643

datetime.timedelta(0, 3600)

2644

>>> rfc3339_duration_to_delta("PT24H")

2645

datetime.timedelta(1)

2646

>>> rfc3339_duration_to_delta("P1W")

2647

datetime.timedelta(7)

2648

>>> rfc3339_duration_to_delta("PT5M30S")

2649

datetime.timedelta(0, 330)

2650

>>> rfc3339_duration_to_delta("P1DT3M20S")

2651

datetime.timedelta(1, 200)

2835

>>> timedelta = datetime.timedelta

2836

>>> rfc3339_duration_to_delta("P7D") == timedelta(7)

2837

True

2838

>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)

2839

True

2840

>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)

2841

True

2842

>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)

2843

True

2844

>>> rfc3339_duration_to_delta("P1W") == timedelta(7)

2845

True

2846

>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)

2847

True

2848

>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)

2849

True

2850

>>> del timedelta

2652

2851

"""

2653

2852

2654

2853

# Parsing an RFC 3339 duration with regular expressions is not

2734

2933

def string_to_delta(interval):

2735

2934

"""Parse a string and return a datetime.timedelta

2736

2935

2737

>>> string_to_delta('7d')

2738

datetime.timedelta(7)

2739

>>> string_to_delta('60s')

2740

datetime.timedelta(0, 60)

2741

>>> string_to_delta('60m')

2742

datetime.timedelta(0, 3600)

2743

>>> string_to_delta('24h')

2744

datetime.timedelta(1)

2745

>>> string_to_delta('1w')

2746

datetime.timedelta(7)

2747

>>> string_to_delta('5m 30s')

2748

datetime.timedelta(0, 330)

2936

>>> string_to_delta("7d") == datetime.timedelta(7)

2937

True

2938

>>> string_to_delta("60s") == datetime.timedelta(0, 60)

2939

True

2940

>>> string_to_delta("60m") == datetime.timedelta(0, 3600)

2941

True

2942

>>> string_to_delta("24h") == datetime.timedelta(1)

2943

True

2944

>>> string_to_delta("1w") == datetime.timedelta(7)

2945

True

2946

>>> string_to_delta("5m 30s") == datetime.timedelta(0, 330)

2947

True

2749

2948

"""

2750

2949

2751

2950

try:

2853

3052

2854

3053

options = parser.parse_args()

2855

3054

2856

if options.check:

2857

import doctest

2858

fail_count, test_count = doctest.testmod()

2859

sys.exit(os.EX_OK if fail_count == 0 else 1)

2860

2861

3055

# Default values for config file for server-global settings

3056

if gnutls.has_rawpk:

3057

priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"

3058

":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")

3059

else:

3060

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

3061

":+SIGN-DSA-SHA256")

2862

3062

server_defaults = {"interface": "",

2863

3063

"address": "",

2864

3064

"port": "",

2865

3065

"debug": "False",

2866

"priority":

2867

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

2868

":+SIGN-DSA-SHA256",

3066

"priority": priority,

2869

3067

"servicename": "Mandos",

2870

3068

"use_dbus": "True",

2871

3069

"use_ipv6": "True",

2876

3074

"foreground": "False",

2877

3075

"zeroconf": "True",

2878

3076

}

3077

del priority

2879

3078

2880

3079

# Parse config file for server-global settings

2881

server_config = configparser.SafeConfigParser(server_defaults)

3080

server_config = configparser.ConfigParser(server_defaults)

2882

3081

del server_defaults

2883

3082

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

2884

# Convert the SafeConfigParser object to a dict

3083

# Convert the ConfigParser object to a dict

2885

3084

server_settings = server_config.defaults()

2886

3085

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

2887

3086

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

2954

3153

2955

3154

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

2956

3155

syslogger.setFormatter(

2957

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

2958

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

3156

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

3157

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

2959

3158

server_settings["servicename"])))

2960

3159

2961

3160

# Parse config file with clients

2962

client_config = configparser.SafeConfigParser(Client

2963

.client_defaults)

3161

client_config = configparser.ConfigParser(Client.client_defaults)

2964

3162

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

2965

3163

"clients.conf"))

2966

3164

2986

3184

try:

2987

3185

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

2988

3186

except IOError as e:

2989

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

2990

exc_info=e)

3187

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

3188

exc_info=e)

2991

3189

2992

3190

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

2993

3191

("mandos", "mandos"),

3004

3202

try:

3005

3203

os.setgid(gid)

3006

3204

os.setuid(uid)

3007

if debug:

3008

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

3009

gid))

3205

log.debug("Did setuid/setgid to %s:%s", uid, gid)

3010

3206

except OSError as error:

3011

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

3012

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

3207

log.warning("Failed to setuid/setgid to %s:%s: %s", uid, gid,

3208

os.strerror(error.errno))

3013

3209

if error.errno != errno.EPERM:

3014

3210

raise

3015

3211

3022

3218

3023

3219

@gnutls.log_func

3024

3220

def debug_gnutls(level, string):

3025

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

3221

log.debug("GnuTLS: %s",

3222

string[:-1].decode("utf-8", errors="replace"))

3026

3223

3027

3224

gnutls.global_set_log_function(debug_gnutls)

3028

3225

3037

3234

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

3038

3235

daemon()

3039

3236

3040

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

3041

# to inform GLib that threads will be used.

3042

GLib.threads_init()

3237

if gi.version_info < (3, 10, 2):

3238

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

3239

# need to inform GLib that threads will be used.

3240

GLib.threads_init()

3043

3241

3044

3242

global main_loop

3045

3243

# From the Avahi example code

3056

3254

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

3057

3255

do_not_queue=True)

3058

3256

except dbus.exceptions.DBusException as e:

3059

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

3257

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

3060

3258

use_dbus = False

3061

3259

server_settings["use_dbus"] = False

3062

3260

tcp_server.use_dbus = False

3121

3319

if isinstance(s, bytes)

3122

3320

else s) for s in

3123

3321

value["client_structure"]]

3124

# .name & .host

3125

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

3322

# .name, .host, and .checker_command

3323

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

3126

3324

if isinstance(value[k], bytes):

3127

3325

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

3326

if "key_id" not in value:

3327

value["key_id"] = ""

3328

elif "fingerprint" not in value:

3329

value["fingerprint"] = ""

3128

3330

# old_client_settings

3129

3331

# .keys()

3130

3332

old_client_settings = {

3134

3336

for key, value in

3135

3337

bytes_old_client_settings.items()}

3136

3338

del bytes_old_client_settings

3137

# .host

3339

# .host and .checker_command

3138

3340

for value in old_client_settings.values():

3139

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

3140

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

3141

.decode("utf-8"))

3341

for attribute in ("host", "checker_command"):

3342

if isinstance(value[attribute], bytes):

3343

value[attribute] = (value[attribute]

3344

.decode("utf-8"))

3142

3345

os.remove(stored_state_path)

3143

3346

except IOError as e:

3144

3347

if e.errno == errno.ENOENT:

3145

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

3146

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

3348

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

3349

" %s", os.strerror(e.errno))

3147

3350

else:

3148

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

3149

exc_info=e)

3351

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

3352

exc_info=e)

3150

3353

raise

3151

3354

except EOFError as e:

3152

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

3153

"EOFError:",

3154

exc_info=e)

3355

log.warning("Could not load persistent state: EOFError:",

3356

exc_info=e)

3155

3357

3156

3358

with PGPEngine() as pgp:

3157

3359

for client_name, client in clients_data.items():

3184

3386

if client["enabled"]:

3185

3387

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

3186

3388

if not client["last_checked_ok"]:

3187

logger.warning(

3188

"disabling client {} - Client never "

3189

"performed a successful checker".format(

3190

client_name))

3389

log.warning("disabling client %s - Client"

3390

" never performed a successful"

3391

" checker", client_name)

3191

3392

client["enabled"] = False

3192

3393

elif client["last_checker_status"] != 0:

3193

logger.warning(

3194

"disabling client {} - Client last"

3195

" checker failed with error code"

3196

" {}".format(

3197

client_name,

3198

client["last_checker_status"]))

3394

log.warning("disabling client %s - Client"

3395

" last checker failed with error"

3396

" code %s", client_name,

3397

client["last_checker_status"])

3199

3398

client["enabled"] = False

3200

3399

else:

3201

3400

client["expires"] = (

3202

3401

datetime.datetime.utcnow()

3203

3402

+ client["timeout"])

3204

logger.debug("Last checker succeeded,"

3205

" keeping {} enabled".format(

3206

client_name))

3403

log.debug("Last checker succeeded, keeping %s"

3404

" enabled", client_name)

3207

3405

try:

3208

3406

client["secret"] = pgp.decrypt(

3209

3407

client["encrypted_secret"],

3210

3408

client_settings[client_name]["secret"])

3211

3409

except PGPError:

3212

3410

# If decryption fails, we use secret from new settings

3213

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

3214

client_name))

3411

log.debug("Failed to decrypt %s old secret",

3412

client_name)

3215

3413

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

3216

3414

["secret"])

3217

3415

3231

3429

server_settings=server_settings)

3232

3430

3233

3431

if not tcp_server.clients:

3234

logger.warning("No clients defined")

3432

log.warning("No clients defined")

3235

3433

3236

3434

if not foreground:

3237

3435

if pidfile is not None:

3240

3438

with pidfile:

3241

3439

print(pid, file=pidfile)

3242

3440

except IOError:

3243

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

3244

pidfilename, pid)

3441

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

3442

pidfilename, pid)

3245

3443

del pidfile

3246

3444

del pidfilename

3247

3445

3267

3465

pass

3268

3466

3269

3467

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

3270

def ClientNotFound(self, fingerprint, address):

3468

def ClientNotFound(self, key_id, address):

3271

3469

"D-Bus signal"

3272

3470

pass

3273

3471

3397

3595

3398

3596

try:

3399

3597

with tempfile.NamedTemporaryFile(

3400

mode='wb',

3598

mode="wb",

3401

3599

suffix=".pickle",

3402

prefix='clients-',

3600

prefix="clients-",

3403

3601

dir=os.path.dirname(stored_state_path),

3404

3602

delete=False) as stored_state:

3405

3603

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

3413

3611

except NameError:

3414

3612

pass

3415

3613

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

3416

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

3417

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

3614

log.warning("Could not save persistent state: %s",

3615

os.strerror(e.errno))

3418

3616

else:

3419

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

3420

exc_info=e)

3617

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

3618

exc_info=e)

3421

3619

raise

3422

3620

3423

3621

# Delete all clients, and settings from config

3440

3638

mandos_dbus_service.client_added_signal(client)

3441

3639

# Need to initiate checking of clients

3442

3640

if client.enabled:

3443

client.init_checker()

3641

client.init_checker(randomize_start=True)

3444

3642

3445

3643

tcp_server.enable()

3446

3644

tcp_server.server_activate()

3449

3647

if zeroconf:

3450

3648

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

3451

3649

if use_ipv6:

3452

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

3453

" flowinfo %d, scope_id %d",

3454

*tcp_server.socket.getsockname())

3650

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

3651

" scope_id %d", *tcp_server.socket.getsockname())

3455

3652

else: # IPv4

3456

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

3457

*tcp_server.socket.getsockname())

3653

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

3654

*tcp_server.socket.getsockname())

3458

3655

3459

3656

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

3460

3657

3464

3661

try:

3465

3662

service.activate()

3466

3663

except dbus.exceptions.DBusException as error:

3467

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

3664

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

3468

3665

cleanup()

3469

3666

sys.exit(1)

3470

3667

# End of Avahi example code

3471

3668

3472

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

3473

lambda *args, **kwargs:

3474

(tcp_server.handle_request

3475

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

3669

GLib.io_add_watch(

3670

GLib.IOChannel.unix_new(tcp_server.fileno()),

3671

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

3672

lambda *args, **kwargs: (tcp_server.handle_request

3673

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

3476

3674

3477

logger.debug("Starting main loop")

3675

log.debug("Starting main loop")

3478

3676

main_loop.run()

3479

3677

except AvahiError as error:

3480

logger.critical("Avahi Error", exc_info=error)

3678

log.critical("Avahi Error", exc_info=error)

3481

3679

cleanup()

3482

3680

sys.exit(1)

3483

3681

except KeyboardInterrupt:

3484

3682

if debug:

3485

3683

print("", file=sys.stderr)

3486

logger.debug("Server received KeyboardInterrupt")

3487

logger.debug("Server exiting")

3684

log.debug("Server received KeyboardInterrupt")

3685

log.debug("Server exiting")

3488

3686

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

3489

3687

cleanup()

3490

3688

3491

3492

if __name__ == '__main__':

3493

main()

3689

3690

def parse_test_args():

3691

# type: () -> argparse.Namespace

3692

parser = argparse.ArgumentParser(add_help=False)

3693

parser.add_argument("--check", action="store_true")

3694

parser.add_argument("--prefix", )

3695

args, unknown_args = parser.parse_known_args()

3696

if args.check:

3697

# Remove test options from sys.argv

3698

sys.argv[1:] = unknown_args

3699

return args

3700

3701

# Add all tests from doctest strings

3702

def load_tests(loader, tests, none):

3703

import doctest

3704

tests.addTests(doctest.DocTestSuite())

3705

return tests

3706

3707

if __name__ == "__main__":

3708

options = parse_test_args()

3709

try:

3710

if options.check:

3711

extra_test_prefix = options.prefix

3712

if extra_test_prefix is not None:

3713

if not (unittest.main(argv=[""], exit=False)

3714

.result.wasSuccessful()):

3715

sys.exit(1)

3716

class ExtraTestLoader(unittest.TestLoader):

3717

testMethodPrefix = extra_test_prefix

3718

# Call using ./scriptname --test [--verbose]

3719

unittest.main(argv=[""], testLoader=ExtraTestLoader())

3720

else:

3721

unittest.main(argv=[""])

3722

else:

3723

main()

3724

finally:

3725

logging.shutdown()

3726

3727

# Local Variables:

3728

# run-tests:

3729

# (lambda (&optional extra)

3730

# (if (not (funcall run-tests-in-test-buffer default-directory

3731

# extra))

3732

# (funcall show-test-buffer-in-test-window)

3733

# (funcall remove-test-window)

3734

# (if extra (message "Extra tests run successfully!"))))

3735

# run-tests-in-test-buffer:

3736

# (lambda (dir &optional extra)

3737

# (with-current-buffer (get-buffer-create "*Test*")

3738

# (setq buffer-read-only nil

3739

# default-directory dir)

3740

# (erase-buffer)

3741

# (compilation-mode))

3742

# (let ((process-result

3743

# (let ((inhibit-read-only t))

3744

# (process-file-shell-command

3745

# (funcall get-command-line extra) nil "*Test*"))))

3746

# (and (numberp process-result)

3747

# (= process-result 0))))

3748

# get-command-line:

3749

# (lambda (&optional extra)

3750

# (let ((quoted-script

3751

# (shell-quote-argument (funcall get-script-name))))

3752

# (format

3753

# (concat "%s --check" (if extra " --prefix=atest" ""))

3754

# quoted-script)))

3755

# get-script-name:

3756

# (lambda ()

3757

# (if (fboundp 'file-local-name)

3758

# (file-local-name (buffer-file-name))

3759

# (or (file-remote-p (buffer-file-name) 'localname)

3760

# (buffer-file-name))))

3761

# remove-test-window:

3762

# (lambda ()

3763

# (let ((test-window (get-buffer-window "*Test*")))

3764

# (if test-window (delete-window test-window))))

3765

# show-test-buffer-in-test-window:

3766

# (lambda ()

3767

# (when (not (get-buffer-window-list "*Test*"))

3768

# (setq next-error-last-buffer (get-buffer "*Test*"))

3769

# (let* ((side (if (>= (window-width) 146) 'right 'bottom))

3770

# (display-buffer-overriding-action

3771

# `((display-buffer-in-side-window) (side . ,side)

3772

# (window-height . fit-window-to-buffer)

3773

# (window-width . fit-window-to-buffer))))

3774

# (display-buffer "*Test*"))))

3775

# eval:

3776

# (progn

3777

# (let* ((run-extra-tests (lambda () (interactive)

3778

# (funcall run-tests t)))

3779

# (inner-keymap `(keymap (116 . ,run-extra-tests))) ; t

3780

# (outer-keymap `(keymap (3 . ,inner-keymap)))) ; C-c

3781

# (setq minor-mode-overriding-map-alist

3782

# (cons `(run-tests . ,outer-keymap)

3783

# minor-mode-overriding-map-alist)))

3784

# (add-hook 'after-save-hook run-tests 90 t))

3785

# End: