/mandos/trunk : revision 713

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#!/usr/bin/python2.7

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#!/usr/bin/python

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

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#

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

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

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#

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# Everything else is

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#

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

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

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from future_builtins import *

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try:

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import SocketServer as socketserver

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except ImportError:

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import socketserver

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import SocketServer as socketserver

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import socket

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import argparse

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import datetime

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import gnutls.library.functions

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import gnutls.library.constants

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import gnutls.library.types

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try:

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import ConfigParser as configparser

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except ImportError:

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import configparser

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import ConfigParser as configparser

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import sys

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import re

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import os

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import struct

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import fcntl

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import functools

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try:

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import cPickle as pickle

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except ImportError:

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import pickle

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import cPickle as pickle

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import multiprocessing

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import types

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import binascii

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import dbus

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import dbus.service

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try:

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import gobject

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except ImportError:

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from gi.repository import GObject as gobject

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import gobject

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import avahi

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from dbus.mainloop.glib import DBusGMainLoop

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import ctypes

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except ImportError:

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SO_BINDTODEVICE = None

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if sys.version_info.major == 2:

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str = unicode

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version = "1.6.9"

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version = "1.6.6"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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syslogger = None

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try:

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if_nametoindex = ctypes.cdll.LoadLibrary(

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

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if_nametoindex = (ctypes.cdll.LoadLibrary

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

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.if_nametoindex)

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except (OSError, AttributeError):

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def if_nametoindex(interface):

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

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

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

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ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

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

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

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

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interface))

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

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ifreq[16:20])[0]

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return interface_index

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"""init logger and add loglevel"""

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global syslogger

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syslogger = (logging.handlers.SysLogHandler(

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facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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address = "/dev/log"))

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syslogger = (logging.handlers.SysLogHandler

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(facility =

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logging.handlers.SysLogHandler.LOG_DAEMON,

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

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syslogger.setFormatter(logging.Formatter

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

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' %(message)s'))

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class PGPEngine(object):

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

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def __init__(self):

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

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self.gnupgargs = ['--batch',

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def encrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(

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dir=self.tempdir) as passfile:

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with tempfile.NamedTemporaryFile(dir=self.tempdir

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) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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def decrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(

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dir = self.tempdir) as passfile:

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with tempfile.NamedTemporaryFile(dir = self.tempdir

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) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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stdin = subprocess.PIPE,

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stdout = subprocess.PIPE,

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stderr = subprocess.PIPE)

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

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decrypted_plaintext, err = proc.communicate(input

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= data)

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if proc.returncode != 0:

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raise PGPError(err)

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return decrypted_plaintext

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class AvahiError(Exception):

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

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self.value = value

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

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**kwargs)

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

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def __unicode__(self):

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return unicode(repr(self.value))

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class AvahiServiceError(AvahiError):

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pass

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class AvahiGroupError(AvahiError):

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pass

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bus: dbus.SystemBus()

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"""

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def __init__(self,

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interface = avahi.IF_UNSPEC,

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name = None,

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servicetype = None,

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port = None,

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TXT = None,

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domain = "",

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host = "",

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max_renames = 32768,

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protocol = avahi.PROTO_UNSPEC,

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bus = None):

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

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

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

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protocol = avahi.PROTO_UNSPEC, bus = None):

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self.interface = interface

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self.name = name

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self.type = servicetype

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self.bus = bus

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self.entry_group_state_changed_match = None

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def rename(self, remove=True):

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def rename(self):

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

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if self.rename_count >= self.max_renames:

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

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" after %i retries, exiting.",

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self.rename_count)

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raise AvahiServiceError("Too many renames")

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self.name = str(

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self.server.GetAlternativeServiceName(self.name))

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self.rename_count += 1

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self.name = unicode(self.server

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.GetAlternativeServiceName(self.name))

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

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self.name)

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if remove:

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self.remove()

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self.remove()

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

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if (error.get_dbus_name()

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

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

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return self.rename(remove=False)

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else:

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

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self.cleanup()

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os._exit(1)

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

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self.cleanup()

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os._exit(1)

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self.rename_count += 1

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def remove(self):

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

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

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

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str(error))

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

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unicode(error))

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

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.format(error))

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def cleanup(self):

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

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

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

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

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bad_states = {

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avahi.SERVER_INVALID: "Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION: "Zeroconf server name collision",

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avahi.SERVER_FAILURE: "Zeroconf server failure",

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}

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bad_states = { avahi.SERVER_INVALID:

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"Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION:

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"Zeroconf server name collision",

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avahi.SERVER_FAILURE:

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"Zeroconf server failure" }

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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

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follow_name_owner_changes=True),

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avahi.DBUS_INTERFACE_SERVER)

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self.server.connect_to_signal("StateChanged",

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self.server_state_changed)

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self.server_state_changed)

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

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class AvahiServiceToSyslog(AvahiService):

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

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def rename(self):

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

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

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syslogger.setFormatter(logging.Formatter(

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

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.format(self.name)))

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ret = AvahiService.rename(self)

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syslogger.setFormatter(logging.Formatter

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

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

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.format(self.name)))

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return ret

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def timedelta_to_milliseconds(td):

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"Convert a datetime.timedelta() to milliseconds"

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

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+ (td.seconds * 1000)

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+ (td.microseconds // 1000))

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class Client(object):

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

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

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"last_approval_request", "last_checked_ok",

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

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client_defaults = {

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"timeout": "PT5M",

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"extended_timeout": "PT15M",

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"interval": "PT2M",

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

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"host": "",

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"approval_delay": "PT0S",

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"approval_duration": "PT1S",

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"approved_by_default": "True",

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"enabled": "True",

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}

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client_defaults = { "timeout": "PT5M",

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"extended_timeout": "PT15M",

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"interval": "PT2M",

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

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"host": "",

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"approval_delay": "PT0S",

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"approval_duration": "PT1S",

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"approved_by_default": "True",

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"enabled": "True",

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}

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def timeout_milliseconds(self):

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"Return the 'timeout' attribute in milliseconds"

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return timedelta_to_milliseconds(self.timeout)

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def extended_timeout_milliseconds(self):

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"Return the 'extended_timeout' attribute in milliseconds"

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return timedelta_to_milliseconds(self.extended_timeout)

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def interval_milliseconds(self):

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"Return the 'interval' attribute in milliseconds"

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return timedelta_to_milliseconds(self.interval)

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def approval_delay_milliseconds(self):

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return timedelta_to_milliseconds(self.approval_delay)

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@staticmethod

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def config_parser(config):

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

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"enabled")

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# Uppercase and remove spaces from fingerprint for later

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# comparison purposes with return value from the

510

# fingerprint() function

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

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.replace(" ", ""))

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if "secret" in section:

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"rb") as secfile:

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

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else:

521

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

516

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

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517

.format(section))

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

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client["extended_timeout"] = string_to_delta(

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server_settings = {}

542

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self.server_settings = server_settings

543

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# adding all client settings

544

for setting, value in settings.items():

539

for setting, value in settings.iteritems():

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setattr(self, setting, value)

546

541

547

542

if self.enabled:

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550

self.expires = None

556

551

557

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

553

# Uppercase and remove spaces from fingerprint for later

554

# comparison purposes with return value from the fingerprint()

555

# function

558

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

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

560

558

datetime.datetime.utcnow())

567

565

self.current_checker_command = None

568

566

self.approved = None

569

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self.approvals_pending = 0

570

self.changedstate = multiprocessing_manager.Condition(

571

multiprocessing_manager.Lock())

572

self.client_structure = [attr

573

for attr in self.__dict__.iterkeys()

568

self.changedstate = (multiprocessing_manager

569

.Condition(multiprocessing_manager

570

.Lock()))

571

self.client_structure = [attr for attr in

572

self.__dict__.iterkeys()

574

573

if not attr.startswith("_")]

575

574

self.client_structure.append("client_structure")

576

575

577

for name, t in inspect.getmembers(

578

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

576

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

577

lambda obj:

578

isinstance(obj,

579

property)):

579

580

if not name.startswith("_"):

580

581

self.client_structure.append(name)

581

582

623

624

# and every interval from then on.

624

625

if self.checker_initiator_tag is not None:

625

626

gobject.source_remove(self.checker_initiator_tag)

626

self.checker_initiator_tag = gobject.timeout_add(

627

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

628

self.start_checker)

627

self.checker_initiator_tag = (gobject.timeout_add

628

(self.interval_milliseconds(),

629

self.start_checker))

629

630

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

630

631

if self.disable_initiator_tag is not None:

631

632

gobject.source_remove(self.disable_initiator_tag)

632

self.disable_initiator_tag = gobject.timeout_add(

633

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

633

self.disable_initiator_tag = (gobject.timeout_add

634

(self.timeout_milliseconds(),

635

self.disable))

634

636

# Also start a new checker *right now*.

635

637

self.start_checker()

636

638

645

647

vars(self))

646

648

self.checked_ok()

647

649

else:

648

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

650

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

651

vars(self))

649

652

else:

650

653

self.last_checker_status = -1

651

654

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

665

668

gobject.source_remove(self.disable_initiator_tag)

666

669

self.disable_initiator_tag = None

667

670

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

668

self.disable_initiator_tag = gobject.timeout_add(

669

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

671

self.disable_initiator_tag = (gobject.timeout_add

672

(timedelta_to_milliseconds

673

(timeout), self.disable))

670

674

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

671

675

672

676

def need_approval(self):

703

707

# Start a new checker if needed

704

708

if self.checker is None:

705

709

# Escape attributes for the shell

706

escaped_attrs = {

707

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

708

for attr in self.runtime_expansions }

710

escaped_attrs = dict(

711

(attr, re.escape(unicode(getattr(self, attr))))

712

for attr in

713

self.runtime_expansions)

709

714

try:

710

715

command = self.checker_command % escaped_attrs

711

716

except TypeError as error:

712

717

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

713

self.checker_command,

714

exc_info=error)

715

return True # Try again later

718

self.checker_command, exc_info=error)

719

return True # Try again later

716

720

self.current_checker_command = command

717

721

try:

718

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

719

self.name)

722

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

723

command, self.name)

720

724

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

721

725

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

722

726

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

731

735

"stderr": wnull })

732

736

self.checker = subprocess.Popen(command,

733

737

close_fds=True,

734

shell=True,

735

cwd="/",

738

shell=True, cwd="/",

736

739

**popen_args)

737

740

except OSError as error:

738

741

logger.error("Failed to start subprocess",

739

742

exc_info=error)

740

743

return True

741

self.checker_callback_tag = gobject.child_watch_add(

742

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

744

self.checker_callback_tag = (gobject.child_watch_add

745

(self.checker.pid,

746

self.checker_callback,

747

data=command))

743

748

# The checker may have completed before the gobject

744

749

# watch was added. Check for this.

745

750

try:

776

781

self.checker = None

777

782

778

783

779

def dbus_service_property(dbus_interface,

780

signature="v",

781

access="readwrite",

782

byte_arrays=False):

784

def dbus_service_property(dbus_interface, signature="v",

785

access="readwrite", byte_arrays=False):

783

786

"""Decorators for marking methods of a DBusObjectWithProperties to

784

787

become properties on the D-Bus.

785

788

794

797

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

795

798

if byte_arrays and signature != "ay":

796

799

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

797

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

798

800

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

799

801

def decorator(func):

800

802

func._dbus_is_property = True

801

803

func._dbus_interface = dbus_interface

806

808

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

807

809

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

808

810

return func

809

810

811

return decorator

811

812

813

821

822

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

822

823

"false"}

823

824

"""

824

825

def decorator(func):

826

func._dbus_is_interface = True

827

func._dbus_interface = dbus_interface

828

func._dbus_name = dbus_interface

829

return func

830

831

830

return decorator

832

831

833

832

835

834

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

836

835

Usage:

837

836

838

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

839

"org.freedesktop.DBus.Property."

840

"EmitsChangedSignal": "false"})

841

837

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

842

838

access="r")

839

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

840

"org.freedesktop.DBus.Property."

841

"EmitsChangedSignal": "false"})

843

842

def Property_dbus_property(self):

844

843

return dbus.Boolean(False)

845

844

"""

846

847

845

def decorator(func):

848

846

func._dbus_annotations = annotations

849

847

return func

850

851

848

return decorator

852

849

853

850

854

851

class DBusPropertyException(dbus.exceptions.DBusException):

855

852

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

856

853

"""

857

pass

854

def __unicode__(self):

855

return unicode(str(self))

858

856

859

857

860

858

class DBusPropertyAccessException(DBusPropertyException):

884

882

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

885

883

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

886

884

"""

887

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

885

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

888

886

False)

889

887

890

888

def _get_all_dbus_things(self, thing):

891

889

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

892

890

"""

893

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

891

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

892

name),

894

893

athing.__get__(self))

895

894

for cls in self.__class__.__mro__

896

895

for name, athing in

897

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

896

inspect.getmembers(cls,

897

self._is_dbus_thing(thing)))

898

899

def _get_dbus_property(self, interface_name, property_name):

900

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

901

property with the specified name and interface.

902

"""

903

for cls in self.__class__.__mro__:

904

for name, value in inspect.getmembers(

905

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

903

for cls in self.__class__.__mro__:

904

for name, value in (inspect.getmembers

905

(cls,

906

self._is_dbus_thing("property"))):

906

907

if (value._dbus_name == property_name

907

908

and value._dbus_interface == interface_name):

908

909

return value.__get__(self)

909

910

911

# No such property

911

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

912

self.dbus_object_path, interface_name, property_name))

912

raise DBusPropertyNotFound(self.dbus_object_path + ":"

913

+ interface_name + "."

914

+ property_name)

913

915

914

@dbus.service.method(dbus.PROPERTIES_IFACE,

915

in_signature="ss",

916

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

916

917

out_signature="v")

917

918

def Get(self, interface_name, property_name):

918

919

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

937

938

# signatures other than "ay".

938

939

if prop._dbus_signature != "ay":

939

940

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

940

"'ay' signature {!r}"

941

"'ay' signature {0!r}"

941

942

.format(prop._dbus_signature))

942

943

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

943

944

for byte in value))

944

945

prop(value)

945

946

@dbus.service.method(dbus.PROPERTIES_IFACE,

947

in_signature="s",

947

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

948

out_signature="a{sv}")

949

def GetAll(self, interface_name):

950

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

965

if not hasattr(value, "variant_level"):

966

properties[name] = value

967

continue

968

properties[name] = type(value)(

969

value, variant_level = value.variant_level + 1)

968

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

969

value.variant_level+1)

970

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

971

972

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

973

def PropertiesChanged(self, interface_name, changed_properties,

974

invalidated_properties):

975

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

976

standard.

977

"""

978

pass

979

980

972

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

981

973

out_signature="s",

982

974

path_keyword='object_path',

990

982

connection)

991

983

try:

992

984

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

993

994

985

def make_tag(document, name, prop):

995

986

e = document.createElement("property")

996

987

e.setAttribute("name", name)

997

988

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

998

989

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

999

990

return e

1000

1001

991

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

1002

992

# Add property tags

1003

993

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

1015

1005

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

1016

1006

and prop._dbus_interface

1017

1007

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

1018

annots.update(getattr(

1019

prop, "_dbus_annotations", {}))

1020

for name, value in annots.items():

1008

annots.update(getattr

1009

(prop,

1010

"_dbus_annotations",

1011

{}))

1012

for name, value in annots.iteritems():

1021

1013

ann_tag = document.createElement(

1022

1014

"annotation")

1023

1015

ann_tag.setAttribute("name", name)

1026

1018

# Add interface annotation tags

1027

1019

for annotation, value in dict(

1028

1020

itertools.chain.from_iterable(

1029

annotations().items()

1030

for name, annotations

1031

in self._get_all_dbus_things("interface")

1021

annotations().iteritems()

1022

for name, annotations in

1023

self._get_all_dbus_things("interface")

1032

1024

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

1033

)).items():

1025

)).iteritems():

1034

1026

ann_tag = document.createElement("annotation")

1035

1027

ann_tag.setAttribute("name", annotation)

1036

1028

ann_tag.setAttribute("value", value)

1063

1055

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

1064

1056

if dt is None:

1065

1057

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

1066

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

1058

return dbus.String(dt.isoformat(),

1059

variant_level=variant_level)

1067

1060

1068

1061

1069

1062

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1089

1082

(from DBusObjectWithProperties) and interfaces (from the

1090

1083

dbus_interface_annotations decorator).

1091

1084

"""

1092

1093

1085

def wrapper(cls):

1094

1086

for orig_interface_name, alt_interface_name in (

1095

alt_interface_names.items()):

1087

alt_interface_names.iteritems()):

1096

1088

attr = {}

1097

1089

interface_names = set()

1098

1090

# Go though all attributes of the class

1100

1092

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

1101

1093

# with the wrong interface name

1102

1094

if (not hasattr(attribute, "_dbus_interface")

1103

or not attribute._dbus_interface.startswith(

1104

orig_interface_name)):

1095

or not attribute._dbus_interface

1096

.startswith(orig_interface_name)):

1105

1097

continue

1106

1098

# Create an alternate D-Bus interface name based on

1107

1099

# the current name

1108

alt_interface = attribute._dbus_interface.replace(

1109

orig_interface_name, alt_interface_name)

1100

alt_interface = (attribute._dbus_interface

1101

.replace(orig_interface_name,

1102

alt_interface_name))

1110

1103

interface_names.add(alt_interface)

1111

1104

# Is this a D-Bus signal?

1112

1105

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

1113

1106

# Extract the original non-method undecorated

1114

1107

# function by black magic

1115

1108

nonmethod_func = (dict(

1116

zip(attribute.func_code.co_freevars,

1117

attribute.__closure__))

1118

["func"].cell_contents)

1109

zip(attribute.func_code.co_freevars,

1110

attribute.__closure__))["func"]

1111

.cell_contents)

1119

1112

# Create a new, but exactly alike, function

1120

1113

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

1121

1114

# with the alternate D-Bus interface name

1122

new_function = (dbus.service.signal(

1123

alt_interface, attribute._dbus_signature)

1115

new_function = (dbus.service.signal

1116

(alt_interface,

1117

attribute._dbus_signature)

1124

1118

(types.FunctionType(

1125

nonmethod_func.func_code,

1126

nonmethod_func.func_globals,

1127

nonmethod_func.func_name,

1128

nonmethod_func.func_defaults,

1129

nonmethod_func.func_closure)))

1119

nonmethod_func.func_code,

1120

nonmethod_func.func_globals,

1121

nonmethod_func.func_name,

1122

nonmethod_func.func_defaults,

1123

nonmethod_func.func_closure)))

1130

1124

# Copy annotations, if any

1131

1125

try:

1132

new_function._dbus_annotations = dict(

1133

attribute._dbus_annotations)

1126

new_function._dbus_annotations = (

1127

dict(attribute._dbus_annotations))

1134

1128

except AttributeError:

1135

1129

pass

1136

1130

# Define a creator of a function to call both the

1141

1135

"""This function is a scope container to pass

1142

1136

func1 and func2 to the "call_both" function

1143

1137

outside of its arguments"""

1144

1145

1138

def call_both(*args, **kwargs):

1146

1139

"""This function will emit two D-Bus

1147

1140

signals by calling func1 and func2"""

1148

1141

func1(*args, **kwargs)

1149

1142

func2(*args, **kwargs)

1150

1151

1143

return call_both

1152

1144

# Create the "call_both" function and add it to

1153

1145

# the class

1158

1150

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

1159

1151

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

1160

1152

# to the class.

1161

attr[attrname] = (

1162

dbus.service.method(

1163

alt_interface,

1164

attribute._dbus_in_signature,

1165

attribute._dbus_out_signature)

1166

(types.FunctionType(attribute.func_code,

1167

attribute.func_globals,

1168

attribute.func_name,

1169

attribute.func_defaults,

1170

attribute.func_closure)))

1153

attr[attrname] = (dbus.service.method

1154

(alt_interface,

1155

attribute._dbus_in_signature,

1156

attribute._dbus_out_signature)

1157

(types.FunctionType

1158

(attribute.func_code,

1159

attribute.func_globals,

1160

attribute.func_name,

1161

attribute.func_defaults,

1162

attribute.func_closure)))

1171

1163

# Copy annotations, if any

1172

1164

try:

1173

attr[attrname]._dbus_annotations = dict(

1174

attribute._dbus_annotations)

1165

attr[attrname]._dbus_annotations = (

1166

dict(attribute._dbus_annotations))

1175

1167

except AttributeError:

1176

1168

pass

1177

1169

# Is this a D-Bus property?

1180

1172

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

1181

1173

# property with the alternate D-Bus interface

1182

1174

# name. Add it to the class.

1183

attr[attrname] = (dbus_service_property(

1184

alt_interface, attribute._dbus_signature,

1185

attribute._dbus_access,

1186

attribute._dbus_get_args_options

1187

["byte_arrays"])

1188

(types.FunctionType(

1189

attribute.func_code,

1190

attribute.func_globals,

1191

attribute.func_name,

1192

attribute.func_defaults,

1193

attribute.func_closure)))

1175

attr[attrname] = (dbus_service_property

1176

(alt_interface,

1177

attribute._dbus_signature,

1178

attribute._dbus_access,

1179

attribute

1180

._dbus_get_args_options

1181

["byte_arrays"])

1182

(types.FunctionType

1183

(attribute.func_code,

1184

attribute.func_globals,

1185

attribute.func_name,

1186

attribute.func_defaults,

1187

attribute.func_closure)))

1194

1188

# Copy annotations, if any

1195

1189

try:

1196

attr[attrname]._dbus_annotations = dict(

1197

attribute._dbus_annotations)

1190

attr[attrname]._dbus_annotations = (

1191

dict(attribute._dbus_annotations))

1198

1192

except AttributeError:

1199

1193

pass

1200

1194

# Is this a D-Bus interface?

1203

1197

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

1204

1198

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

1205

1199

# to the class.

1206

attr[attrname] = (

1207

dbus_interface_annotations(alt_interface)

1208

(types.FunctionType(attribute.func_code,

1209

attribute.func_globals,

1210

attribute.func_name,

1211

attribute.func_defaults,

1212

attribute.func_closure)))

1200

attr[attrname] = (dbus_interface_annotations

1201

(alt_interface)

1202

(types.FunctionType

1203

(attribute.func_code,

1204

attribute.func_globals,

1205

attribute.func_name,

1206

attribute.func_defaults,

1207

attribute.func_closure)))

1213

1208

if deprecate:

1214

1209

# Deprecate all alternate interfaces

1215

iname="_AlternateDBusNames_interface_annotation{}"

1210

iname="_AlternateDBusNames_interface_annotation{0}"

1216

1211

for interface_name in interface_names:

1217

1218

1212

@dbus_interface_annotations(interface_name)

1219

1213

def func(self):

1220

1214

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

1221

"true" }

1215

"true" }

1222

1216

# Find an unused name

1223

1217

for aname in (iname.format(i)

1224

1218

for i in itertools.count()):

1228

1222

if interface_names:

1229

1223

# Replace the class with a new subclass of it with

1230

1224

# methods, signals, etc. as created above.

1231

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

1232

(cls, ), attr)

1225

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

1226

(cls,), attr)

1233

1227

return cls

1234

1235

1228

return wrapper

1236

1229

1237

1230

1238

1231

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

1239

"se.bsnet.fukt.Mandos"})

1232

"se.bsnet.fukt.Mandos"})

1240

1233

class ClientDBus(Client, DBusObjectWithProperties):

1241

1234

"""A Client class using D-Bus

1242

1235

1246

1239

"""

1247

1240

1248

1241

runtime_expansions = (Client.runtime_expansions

1249

+ ("dbus_object_path", ))

1250

1251

_interface = "se.recompile.Mandos.Client"

1242

+ ("dbus_object_path",))

1252

1243

1253

1244

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

1254

1245

1257

1248

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

1258

1249

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

1259

1250

# the D-Bus

1260

client_object_name = str(self.name).translate(

1251

client_object_name = unicode(self.name).translate(

1261

1252

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

1262

1253

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

1263

self.dbus_object_path = dbus.ObjectPath(

1264

"/clients/" + client_object_name)

1254

self.dbus_object_path = (dbus.ObjectPath

1255

("/clients/" + client_object_name))

1265

1256

DBusObjectWithProperties.__init__(self, self.bus,

1266

1257

self.dbus_object_path)

1267

1258

1268

def notifychangeproperty(transform_func, dbus_name,

1269

type_func=lambda x: x,

1270

variant_level=1,

1271

invalidate_only=False,

1272

_interface=_interface):

1259

def notifychangeproperty(transform_func,

1260

dbus_name, type_func=lambda x: x,

1261

variant_level=1):

1273

1262

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

1274

1263

its changes to DBus.

1275

1264

1280

1269

to the D-Bus. Default: no transform

1281

1270

variant_level: D-Bus variant level. Default: 1

1282

1271

"""

1283

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

1284

1272

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

1285

1273

def setter(self, value):

1286

1274

if hasattr(self, "dbus_object_path"):

1287

1275

if (not hasattr(self, attrname) or

1288

1276

type_func(getattr(self, attrname, None))

1289

1277

!= type_func(value)):

1290

if invalidate_only:

1291

self.PropertiesChanged(

1292

_interface, dbus.Dictionary(),

1293

dbus.Array((dbus_name, )))

1294

else:

1295

dbus_value = transform_func(

1296

type_func(value),

1297

variant_level = variant_level)

1298

self.PropertyChanged(dbus.String(dbus_name),

1299

dbus_value)

1300

self.PropertiesChanged(

1301

_interface,

1302

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

1303

dbus_value }),

1304

dbus.Array())

1278

dbus_value = transform_func(type_func(value),

1279

variant_level

1280

=variant_level)

1281

self.PropertyChanged(dbus.String(dbus_name),

1282

dbus_value)

1305

1283

setattr(self, attrname, value)

1306

1284

1307

1285

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

1313

1291

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

1314

1292

last_enabled = notifychangeproperty(datetime_to_dbus,

1315

1293

"LastEnabled")

1316

checker = notifychangeproperty(

1317

dbus.Boolean, "CheckerRunning",

1318

type_func = lambda checker: checker is not None)

1294

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

1295

type_func = lambda checker:

1296

checker is not None)

1319

1297

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1320

1298

"LastCheckedOK")

1321

1299

last_checker_status = notifychangeproperty(dbus.Int16,

1324

1302

datetime_to_dbus, "LastApprovalRequest")

1325

1303

approved_by_default = notifychangeproperty(dbus.Boolean,

1326

1304

"ApprovedByDefault")

1327

approval_delay = notifychangeproperty(

1328

dbus.UInt64, "ApprovalDelay",

1329

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

1305

approval_delay = notifychangeproperty(dbus.UInt64,

1306

"ApprovalDelay",

1307

type_func =

1308

timedelta_to_milliseconds)

1330

1309

approval_duration = notifychangeproperty(

1331

1310

dbus.UInt64, "ApprovalDuration",

1332

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

1311

type_func = timedelta_to_milliseconds)

1333

1312

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

1334

timeout = notifychangeproperty(

1335

dbus.UInt64, "Timeout",

1336

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

1313

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

1314

type_func =

1315

timedelta_to_milliseconds)

1337

1316

extended_timeout = notifychangeproperty(

1338

1317

dbus.UInt64, "ExtendedTimeout",

1339

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

1340

interval = notifychangeproperty(

1341

dbus.UInt64, "Interval",

1342

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

1318

type_func = timedelta_to_milliseconds)

1319

interval = notifychangeproperty(dbus.UInt64,

1320

"Interval",

1321

type_func =

1322

timedelta_to_milliseconds)

1343

1323

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

1344

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

1345

invalidate_only=True)

1346

1324

1347

1325

del notifychangeproperty

1348

1326

1390

1368

1391

1369

def approve(self, value=True):

1392

1370

self.approved = value

1393

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

1394

* 1000), self._reset_approved)

1371

gobject.timeout_add(timedelta_to_milliseconds

1372

(self.approval_duration),

1373

self._reset_approved)

1395

1374

self.send_changedstate()

1396

1375

1397

1376

## D-Bus methods, signals & properties

1377

_interface = "se.recompile.Mandos.Client"

1398

1378

1399

1379

## Interfaces

1400

1380

1381

@dbus_interface_annotations(_interface)

1382

def _foo(self):

1383

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

1384

"false"}

1385

1401

1386

## Signals

1402

1387

1403

1388

# CheckerCompleted - signal

1413

1398

pass

1414

1399

1415

1400

# PropertyChanged - signal

1416

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

1417

1401

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

1418

1402

def PropertyChanged(self, property, value):

1419

1403

"D-Bus signal"

1483

1467

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

1484

1468

1485

1469

# ApprovedByDefault - property

1486

@dbus_service_property(_interface,

1487

signature="b",

1470

@dbus_service_property(_interface, signature="b",

1488

1471

access="readwrite")

1489

1472

def ApprovedByDefault_dbus_property(self, value=None):

1490

1473

if value is None: # get

1492

1475

self.approved_by_default = bool(value)

1493

1476

1494

1477

# ApprovalDelay - property

1495

@dbus_service_property(_interface,

1496

signature="t",

1478

@dbus_service_property(_interface, signature="t",

1497

1479

access="readwrite")

1498

1480

def ApprovalDelay_dbus_property(self, value=None):

1499

1481

if value is None: # get

1500

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

1501

* 1000)

1482

return dbus.UInt64(self.approval_delay_milliseconds())

1502

1483

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

1503

1484

1504

1485

# ApprovalDuration - property

1505

@dbus_service_property(_interface,

1506

signature="t",

1486

@dbus_service_property(_interface, signature="t",

1507

1487

access="readwrite")

1508

1488

def ApprovalDuration_dbus_property(self, value=None):

1509

1489

if value is None: # get

1510

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

1511

* 1000)

1490

return dbus.UInt64(timedelta_to_milliseconds(

1491

self.approval_duration))

1512

1492

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

1513

1493

1514

1494

# Name - property

1522

1502

return dbus.String(self.fingerprint)

1523

1503

1524

1504

# Host - property

1525

@dbus_service_property(_interface,

1526

signature="s",

1505

@dbus_service_property(_interface, signature="s",

1527

1506

access="readwrite")

1528

1507

def Host_dbus_property(self, value=None):

1529

1508

if value is None: # get

1530

1509

return dbus.String(self.host)

1531

self.host = str(value)

1510

self.host = unicode(value)

1532

1511

1533

1512

# Created - property

1534

1513

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

1541

1520

return datetime_to_dbus(self.last_enabled)

1542

1521

1543

1522

# Enabled - property

1544

@dbus_service_property(_interface,

1545

signature="b",

1523

@dbus_service_property(_interface, signature="b",

1546

1524

access="readwrite")

1547

1525

def Enabled_dbus_property(self, value=None):

1548

1526

if value is None: # get

1553

1531

self.disable()

1554

1532

1555

1533

# LastCheckedOK - property

1556

@dbus_service_property(_interface,

1557

signature="s",

1534

@dbus_service_property(_interface, signature="s",

1558

1535

access="readwrite")

1559

1536

def LastCheckedOK_dbus_property(self, value=None):

1560

1537

if value is not None:

1563

1540

return datetime_to_dbus(self.last_checked_ok)

1564

1541

1565

1542

# LastCheckerStatus - property

1566

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

1543

@dbus_service_property(_interface, signature="n",

1544

access="read")

1567

1545

def LastCheckerStatus_dbus_property(self):

1568

1546

return dbus.Int16(self.last_checker_status)

1569

1547

1578

1556

return datetime_to_dbus(self.last_approval_request)

1579

1557

1580

1558

# Timeout - property

1581

@dbus_service_property(_interface,

1582

signature="t",

1559

@dbus_service_property(_interface, signature="t",

1583

1560

access="readwrite")

1584

1561

def Timeout_dbus_property(self, value=None):

1585

1562

if value is None: # get

1586

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

1563

return dbus.UInt64(self.timeout_milliseconds())

1587

1564

old_timeout = self.timeout

1588

1565

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

1589

1566

# Reschedule disabling

1598

1575

is None):

1599

1576

return

1600

1577

gobject.source_remove(self.disable_initiator_tag)

1601

self.disable_initiator_tag = gobject.timeout_add(

1602

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

1603

self.disable)

1578

self.disable_initiator_tag = (

1579

gobject.timeout_add(

1580

timedelta_to_milliseconds(self.expires - now),

1581

self.disable))

1604

1582

1605

1583

# ExtendedTimeout - property

1606

@dbus_service_property(_interface,

1607

signature="t",

1584

@dbus_service_property(_interface, signature="t",

1608

1585

access="readwrite")

1609

1586

def ExtendedTimeout_dbus_property(self, value=None):

1610

1587

if value is None: # get

1611

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

1612

* 1000)

1588

return dbus.UInt64(self.extended_timeout_milliseconds())

1613

1589

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

1614

1590

1615

1591

# Interval - property

1616

@dbus_service_property(_interface,

1617

signature="t",

1592

@dbus_service_property(_interface, signature="t",

1618

1593

access="readwrite")

1619

1594

def Interval_dbus_property(self, value=None):

1620

1595

if value is None: # get

1621

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

1596

return dbus.UInt64(self.interval_milliseconds())

1622

1597

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

1623

1598

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

1624

1599

return

1625

1600

if self.enabled:

1626

1601

# Reschedule checker run

1627

1602

gobject.source_remove(self.checker_initiator_tag)

1628

self.checker_initiator_tag = gobject.timeout_add(

1629

value, self.start_checker)

1630

self.start_checker() # Start one now, too

1603

self.checker_initiator_tag = (gobject.timeout_add

1604

(value, self.start_checker))

1605

self.start_checker() # Start one now, too

1631

1606

1632

1607

# Checker - property

1633

@dbus_service_property(_interface,

1634

signature="s",

1608

@dbus_service_property(_interface, signature="s",

1635

1609

access="readwrite")

1636

1610

def Checker_dbus_property(self, value=None):

1637

1611

if value is None: # get

1638

1612

return dbus.String(self.checker_command)

1639

self.checker_command = str(value)

1613

self.checker_command = unicode(value)

1640

1614

1641

1615

# CheckerRunning - property

1642

@dbus_service_property(_interface,

1643

signature="b",

1616

@dbus_service_property(_interface, signature="b",

1644

1617

access="readwrite")

1645

1618

def CheckerRunning_dbus_property(self, value=None):

1646

1619

if value is None: # get

1656

1629

return self.dbus_object_path # is already a dbus.ObjectPath

1657

1630

1658

1631

# Secret = property

1659

@dbus_service_property(_interface,

1660

signature="ay",

1661

access="write",

1662

byte_arrays=True)

1632

@dbus_service_property(_interface, signature="ay",

1633

access="write", byte_arrays=True)

1663

1634

def Secret_dbus_property(self, value):

1664

self.secret = bytes(value)

1635

self.secret = str(value)

1665

1636

1666

1637

del _interface

1667

1638

1681

1652

if data[0] == 'data':

1682

1653

return data[1]

1683

1654

if data[0] == 'function':

1684

1685

1655

def func(*args, **kwargs):

1686

1656

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

1687

1657

return self._pipe.recv()[1]

1688

1689

1658

return func

1690

1659

1691

1660

def __setattr__(self, name, value):

1703

1672

def handle(self):

1704

1673

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

1705

1674

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

1706

str(self.client_address))

1675

unicode(self.client_address))

1707

1676

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

1708

1677

self.server.child_pipe.fileno())

1709

1678

1710

session = gnutls.connection.ClientSession(

1711

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

1679

session = (gnutls.connection

1680

.ClientSession(self.request,

1681

gnutls.connection

1682

.X509Credentials()))

1712

1683

1713

1684

# Note: gnutls.connection.X509Credentials is really a

1714

1685

# generic GnuTLS certificate credentials object so long as

1723

1694

priority = self.server.gnutls_priority

1724

1695

if priority is None:

1725

1696

priority = "NORMAL"

1726

gnutls.library.functions.gnutls_priority_set_direct(

1727

session._c_object, priority, None)

1697

(gnutls.library.functions

1698

.gnutls_priority_set_direct(session._c_object,

1699

priority, None))

1728

1700

1729

1701

# Start communication using the Mandos protocol

1730

1702

# Get protocol number

1750

1722

approval_required = False

1751

1723

try:

1752

1724

try:

1753

fpr = self.fingerprint(

1754

self.peer_certificate(session))

1725

fpr = self.fingerprint(self.peer_certificate

1726

(session))

1755

1727

except (TypeError,

1756

1728

gnutls.errors.GNUTLSError) as error:

1757

1729

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

1772

1744

while True:

1773

1745

if not client.enabled:

1774

1746

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

1775

client.name)

1747

client.name)

1776

1748

if self.server.use_dbus:

1777

1749

# Emit D-Bus signal

1778

1750

client.Rejected("Disabled")

1787

1759

if self.server.use_dbus:

1788

1760

# Emit D-Bus signal

1789

1761

client.NeedApproval(

1790

client.approval_delay.total_seconds()

1791

* 1000, client.approved_by_default)

1762

client.approval_delay_milliseconds(),

1763

client.approved_by_default)

1792

1764

else:

1793

1765

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

1794

1766

client.name)

1800

1772

#wait until timeout or approved

1801

1773

time = datetime.datetime.now()

1802

1774

client.changedstate.acquire()

1803

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

1775

client.changedstate.wait(

1776

float(timedelta_to_milliseconds(delay)

1777

/ 1000))

1804

1778

client.changedstate.release()

1805

1779

time2 = datetime.datetime.now()

1806

1780

if (time2 - time) >= delay:

1825

1799

logger.warning("gnutls send failed",

1826

1800

exc_info=error)

1827

1801

return

1828

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

1829

len(client.secret) - (sent_size

1830

+ sent))

1802

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

1803

sent, len(client.secret)

1804

- (sent_size + sent))

1831

1805

sent_size += sent

1832

1806

1833

1807

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

1850

1824

def peer_certificate(session):

1851

1825

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

1852

1826

# If not an OpenPGP certificate...

1853

if (gnutls.library.functions.gnutls_certificate_type_get(

1854

session._c_object)

1827

if (gnutls.library.functions

1828

.gnutls_certificate_type_get(session._c_object)

1855

1829

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1856

1830

# ...do the normal thing

1857

1831

return session.peer_certificate

1871

1845

def fingerprint(openpgp):

1872

1846

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

1873

1847

# New GnuTLS "datum" with the OpenPGP public key

1874

datum = gnutls.library.types.gnutls_datum_t(

1875

ctypes.cast(ctypes.c_char_p(openpgp),

1876

ctypes.POINTER(ctypes.c_ubyte)),

1877

ctypes.c_uint(len(openpgp)))

1848

datum = (gnutls.library.types

1849

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

1850

ctypes.POINTER

1851

(ctypes.c_ubyte)),

1852

ctypes.c_uint(len(openpgp))))

1878

1853

# New empty GnuTLS certificate

1879

1854

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1880

gnutls.library.functions.gnutls_openpgp_crt_init(

1881

ctypes.byref(crt))

1855

(gnutls.library.functions

1856

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

1882

1857

# Import the OpenPGP public key into the certificate

1883

gnutls.library.functions.gnutls_openpgp_crt_import(

1884

crt, ctypes.byref(datum),

1885

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

1858

(gnutls.library.functions

1859

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

1860

gnutls.library.constants

1861

.GNUTLS_OPENPGP_FMT_RAW))

1886

1862

# Verify the self signature in the key

1887

1863

crtverify = ctypes.c_uint()

1888

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

1889

crt, 0, ctypes.byref(crtverify))

1864

(gnutls.library.functions

1865

.gnutls_openpgp_crt_verify_self(crt, 0,

1866

ctypes.byref(crtverify)))

1890

1867

if crtverify.value != 0:

1891

1868

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1892

raise gnutls.errors.CertificateSecurityError(

1893

"Verify failed")

1869

raise (gnutls.errors.CertificateSecurityError

1870

("Verify failed"))

1894

1871

# New buffer for the fingerprint

1895

1872

buf = ctypes.create_string_buffer(20)

1896

1873

buf_len = ctypes.c_size_t()

1897

1874

# Get the fingerprint from the certificate into the buffer

1898

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

1899

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

1875

(gnutls.library.functions

1876

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

1877

ctypes.byref(buf_len)))

1900

1878

# Deinit the certificate

1901

1879

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1902

1880

# Convert the buffer to a Python bytestring

1908

1886

1909

1887

class MultiprocessingMixIn(object):

1910

1888

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

1911

1912

1889

def sub_process_main(self, request, address):

1913

1890

try:

1914

1891

self.finish_request(request, address)

1926

1903

1927

1904

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1928

1905

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

1929

1930

1906

def process_request(self, request, client_address):

1931

1907

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

1932

1908

1953

1929

interface: None or a network interface name (string)

1954

1930

use_ipv6: Boolean; to use IPv6 or not

1955

1931

"""

1956

1957

1932

def __init__(self, server_address, RequestHandlerClass,

1958

interface=None,

1959

use_ipv6=True,

1960

socketfd=None):

1933

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

1961

1934

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

1962

1935

creating a new one with socket.socket().

1963

1936

"""

2004

1977

self.interface)

2005

1978

else:

2006

1979

try:

2007

self.socket.setsockopt(

2008

socket.SOL_SOCKET, SO_BINDTODEVICE,

2009

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

1980

self.socket.setsockopt(socket.SOL_SOCKET,

1981

SO_BINDTODEVICE,

1982

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

2010

1983

except socket.error as error:

2011

1984

if error.errno == errno.EPERM:

2012

1985

logger.error("No permission to bind to"

2030

2003

self.server_address = (any_address,

2031

2004

self.server_address[1])

2032

2005

elif not self.server_address[1]:

2033

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

2006

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

2007

0)

2034

2008

# if self.interface:

2035

2009

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

2036

2010

# 0, # port

2050

2024

2051

2025

Assumes a gobject.MainLoop event loop.

2052

2026

"""

2053

2054

2027

def __init__(self, server_address, RequestHandlerClass,

2055

interface=None,

2056

use_ipv6=True,

2057

clients=None,

2058

gnutls_priority=None,

2059

use_dbus=True,

2060

socketfd=None):

2028

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

2029

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

2061

2030

self.enabled = False

2062

2031

self.clients = clients

2063

2032

if self.clients is None:

2069

2038

interface = interface,

2070

2039

use_ipv6 = use_ipv6,

2071

2040

socketfd = socketfd)

2072

2073

2041

def server_activate(self):

2074

2042

if self.enabled:

2075

2043

return socketserver.TCPServer.server_activate(self)

2079

2047

2080

2048

def add_pipe(self, parent_pipe, proc):

2081

2049

# Call "handle_ipc" for both data and EOF events

2082

gobject.io_add_watch(

2083

parent_pipe.fileno(),

2084

gobject.IO_IN | gobject.IO_HUP,

2085

functools.partial(self.handle_ipc,

2086

parent_pipe = parent_pipe,

2087

proc = proc))

2050

gobject.io_add_watch(parent_pipe.fileno(),

2051

gobject.IO_IN | gobject.IO_HUP,

2052

functools.partial(self.handle_ipc,

2053

parent_pipe =

2054

parent_pipe,

2055

proc = proc))

2088

2056

2089

def handle_ipc(self, source, condition,

2090

parent_pipe=None,

2091

proc = None,

2092

client_object=None):

2057

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

2058

proc = None, client_object=None):

2093

2059

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

2094

2060

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

2095

2061

# Wait for other process to exit

2118

2084

parent_pipe.send(False)

2119

2085

return False

2120

2086

2121

gobject.io_add_watch(

2122

parent_pipe.fileno(),

2123

gobject.IO_IN | gobject.IO_HUP,

2124

functools.partial(self.handle_ipc,

2125

parent_pipe = parent_pipe,

2126

proc = proc,

2127

client_object = client))

2087

gobject.io_add_watch(parent_pipe.fileno(),

2088

gobject.IO_IN | gobject.IO_HUP,

2089

functools.partial(self.handle_ipc,

2090

parent_pipe =

2091

parent_pipe,

2092

proc = proc,

2093

client_object =

2094

client))

2128

2095

parent_pipe.send(True)

2129

2096

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

2130

2097

# same fileno

2136

2103

2137

2104

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

2138

2105

funcname)(*args,

2139

**kwargs)))

2106

**kwargs)))

2140

2107

2141

2108

if command == 'getattr':

2142

2109

attrname = request[1]

2143

2110

if callable(client_object.__getattribute__(attrname)):

2144

parent_pipe.send(('function', ))

2111

parent_pipe.send(('function',))

2145

2112

else:

2146

parent_pipe.send((

2147

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

2113

parent_pipe.send(('data', client_object

2114

.__getattribute__(attrname)))

2148

2115

2149

2116

if command == 'setattr':

2150

2117

attrname = request[1]

2190

2157

# None

2191

2158

"followers")) # Tokens valid after

2192

2159

# this token

2193

Token = collections.namedtuple("Token", (

2194

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

2195

# a "group" containing digits

2196

"value", # datetime.timedelta or None

2197

"followers")) # Tokens valid after this token

2198

2160

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

2199

2161

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

2200

2162

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

2201

2163

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

2202

2164

datetime.timedelta(seconds=1),

2203

frozenset((token_end, )))

2165

frozenset((token_end,)))

2204

2166

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

2205

2167

datetime.timedelta(minutes=1),

2206

2168

frozenset((token_second, token_end)))

2222

2184

frozenset((token_month, token_end)))

2223

2185

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

2224

2186

datetime.timedelta(weeks=1),

2225

frozenset((token_end, )))

2187

frozenset((token_end,)))

2226

2188

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

2227

2189

frozenset((token_year, token_month,

2228

2190

token_day, token_time,

2229

token_week)))

2191

token_week))),

2230

2192

# Define starting values

2231

2193

value = datetime.timedelta() # Value so far

2232

2194

found_token = None

2233

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

2195

followers = frozenset(token_duration,) # Following valid tokens

2234

2196

s = duration # String left to parse

2235

2197

# Loop until end token is found

2236

2198

while found_token is not token_end:

2283

2245

timevalue = datetime.timedelta(0)

2284

2246

for s in interval.split():

2285

2247

try:

2286

suffix = s[-1]

2248

suffix = unicode(s[-1])

2287

2249

value = int(s[:-1])

2288

2250

if suffix == "d":

2289

2251

delta = datetime.timedelta(value)

2296

2258

elif suffix == "w":

2297

2259

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

2298

2260

else:

2299

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

2261

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

2262

.format(suffix))

2300

2263

except IndexError as e:

2301

2264

raise ValueError(*(e.args))

2302

2265

timevalue += delta

2319

2282

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

2320

2283

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

2321

2284

raise OSError(errno.ENODEV,

2322

"{} not a character device"

2285

"{0} not a character device"

2323

2286

.format(os.devnull))

2324

2287

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

2325

2288

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

2335

2298

2336

2299

parser = argparse.ArgumentParser()

2337

2300

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

2338

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

2301

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

2339

2302

help="show version number and exit")

2340

2303

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

2341

2304

help="Bind to interface IF")

2391

2354

"port": "",

2392

2355

"debug": "False",

2393

2356

"priority":

2394

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

2395

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

2357

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

2396

2358

"servicename": "Mandos",

2397

2359

"use_dbus": "True",

2398

2360

"use_ipv6": "True",

2402

2364

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

2403

2365

"foreground": "False",

2404

2366

"zeroconf": "True",

2405

}

2367

}

2406

2368

2407

2369

# Parse config file for server-global settings

2408

2370

server_config = configparser.SafeConfigParser(server_defaults)

2409

2371

del server_defaults

2410

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

2372

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

2373

"mandos.conf"))

2411

2374

# Convert the SafeConfigParser object to a dict

2412

2375

server_settings = server_config.defaults()

2413

2376

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

2431

2394

# Override the settings from the config file with command line

2432

2395

# options, if set.

2433

2396

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

2434

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

2435

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

2436

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

2397

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

2398

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

2399

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

2437

2400

value = getattr(options, option)

2438

2401

if value is not None:

2439

2402

server_settings[option] = value

2440

2403

del options

2441

2404

# Force all strings to be unicode

2442

2405

for option in server_settings.keys():

2443

if isinstance(server_settings[option], bytes):

2444

server_settings[option] = (server_settings[option]

2445

.decode("utf-8"))

2406

if type(server_settings[option]) is str:

2407

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

2446

2408

# Force all boolean options to be boolean

2447

2409

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

2448

2410

"foreground", "zeroconf"):

2454

2416

2455

2417

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

2456

2418

2457

if (not server_settings["zeroconf"]

2458

and not (server_settings["port"]

2459

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

2460

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

2419

if (not server_settings["zeroconf"] and

2420

not (server_settings["port"]

2421

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

2422

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

2423

" Zeroconf")

2461

2424

2462

2425

# For convenience

2463

2426

debug = server_settings["debug"]

2479

2442

initlogger(debug, level)

2480

2443

2481

2444

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

2482

syslogger.setFormatter(

2483

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

2484

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

2485

server_settings["servicename"])))

2445

syslogger.setFormatter(logging.Formatter

2446

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

2447

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

2448

.format(server_settings

2449

["servicename"])))

2486

2450

2487

2451

# Parse config file with clients

2488

2452

client_config = configparser.SafeConfigParser(Client

2496

2460

socketfd = None

2497

2461

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

2498

2462

socketfd = server_settings["socket"]

2499

tcp_server = MandosServer(

2500

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

2501

ClientHandler,

2502

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

2503

use_ipv6=use_ipv6,

2504

gnutls_priority=server_settings["priority"],

2505

use_dbus=use_dbus,

2506

socketfd=socketfd)

2463

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

2464

server_settings["port"]),

2465

ClientHandler,

2466

interface=(server_settings["interface"]

2467

or None),

2468

use_ipv6=use_ipv6,

2469

gnutls_priority=

2470

server_settings["priority"],

2471

use_dbus=use_dbus,

2472

socketfd=socketfd)

2507

2473

if not foreground:

2508

2474

pidfilename = "/run/mandos.pid"

2509

2475

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

2543

2509

def debug_gnutls(level, string):

2544

2510

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

2545

2511

2546

gnutls.library.functions.gnutls_global_set_log_function(

2547

debug_gnutls)

2512

(gnutls.library.functions

2513

.gnutls_global_set_log_function(debug_gnutls))

2548

2514

2549

2515

# Redirect stdin so all checkers get /dev/null

2550

2516

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

2570

2536

if use_dbus:

2571

2537

try:

2572

2538

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

2573

bus,

2574

do_not_queue=True)

2575

old_bus_name = dbus.service.BusName(

2576

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

2577

do_not_queue=True)

2578

except dbus.exceptions.DBusException as e:

2539

bus, do_not_queue=True)

2540

old_bus_name = (dbus.service.BusName

2541

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

2542

do_not_queue=True))

2543

except dbus.exceptions.NameExistsException as e:

2579

2544

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

2580

2545

use_dbus = False

2581

2546

server_settings["use_dbus"] = False

2582

2547

tcp_server.use_dbus = False

2583

2548

if zeroconf:

2584

2549

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2585

service = AvahiServiceToSyslog(

2586

name = server_settings["servicename"],

2587

servicetype = "_mandos._tcp",

2588

protocol = protocol,

2589

bus = bus)

2550

service = AvahiServiceToSyslog(name =

2551

server_settings["servicename"],

2552

servicetype = "_mandos._tcp",

2553

protocol = protocol, bus = bus)

2590

2554

if server_settings["interface"]:

2591

service.interface = if_nametoindex(

2592

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

2555

service.interface = (if_nametoindex

2556

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

2593

2557

2594

2558

global multiprocessing_manager

2595

2559

multiprocessing_manager = multiprocessing.Manager()

2614

2578

if server_settings["restore"]:

2615

2579

try:

2616

2580

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

2617

clients_data, old_client_settings = pickle.load(

2618

stored_state)

2581

clients_data, old_client_settings = (pickle.load

2582

(stored_state))

2619

2583

os.remove(stored_state_path)

2620

2584

except IOError as e:

2621

2585

if e.errno == errno.ENOENT:

2622

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

2623

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

2586

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

2587

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

2624

2588

else:

2625

2589

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

2626

2590

exc_info=e)

2627

2591

raise

2628

2592

except EOFError as e:

2629

2593

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

2630

"EOFError:",

2631

exc_info=e)

2594

"EOFError:", exc_info=e)

2632

2595

2633

2596

with PGPEngine() as pgp:

2634

for client_name, client in clients_data.items():

2597

for client_name, client in clients_data.iteritems():

2635

2598

# Skip removed clients

2636

2599

if client_name not in client_settings:

2637

2600

continue

2646

2609

# For each value in new config, check if it

2647

2610

# differs from the old config value (Except for

2648

2611

# the "secret" attribute)

2649

if (name != "secret"

2650

and (value !=

2651

old_client_settings[client_name][name])):

2612

if (name != "secret" and

2613

value != old_client_settings[client_name]

2614

[name]):

2652

2615

client[name] = value

2653

2616

except KeyError:

2654

2617

pass

2662

2625

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

2663

2626

if not client["last_checked_ok"]:

2664

2627

logger.warning(

2665

"disabling client {} - Client never "

2666

"performed a successful checker".format(

2667

client_name))

2628

"disabling client {0} - Client never "

2629

"performed a successful checker"

2630

.format(client_name))

2668

2631

client["enabled"] = False

2669

2632

elif client["last_checker_status"] != 0:

2670

2633

logger.warning(

2671

"disabling client {} - Client last"

2672

" checker failed with error code"

2673

" {}".format(

2674

client_name,

2675

client["last_checker_status"]))

2634

"disabling client {0} - Client "

2635

"last checker failed with error code {1}"

2636

.format(client_name,

2637

client["last_checker_status"]))

2676

2638

client["enabled"] = False

2677

2639

else:

2678

client["expires"] = (

2679

datetime.datetime.utcnow()

2680

+ client["timeout"])

2640

client["expires"] = (datetime.datetime

2641

.utcnow()

2642

+ client["timeout"])

2681

2643

logger.debug("Last checker succeeded,"

2682

" keeping {} enabled".format(

2683

client_name))

2644

" keeping {0} enabled"

2645

.format(client_name))

2684

2646

try:

2685

client["secret"] = pgp.decrypt(

2686

client["encrypted_secret"],

2687

client_settings[client_name]["secret"])

2647

client["secret"] = (

2648

pgp.decrypt(client["encrypted_secret"],

2649

client_settings[client_name]

2650

["secret"]))

2688

2651

except PGPError:

2689

2652

# If decryption fails, we use secret from new settings

2690

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

2691

client_name))

2692

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

2693

["secret"])

2653

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

2654

.format(client_name))

2655

client["secret"] = (

2656

client_settings[client_name]["secret"])

2694

2657

2695

2658

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

2696

2659

for client_name in (set(old_client_settings)

2701

2664

clients_data[client_name] = client_settings[client_name]

2702

2665

2703

2666

# Create all client objects

2704

for client_name, client in clients_data.items():

2667

for client_name, client in clients_data.iteritems():

2705

2668

tcp_server.clients[client_name] = client_class(

2706

name = client_name,

2707

settings = client,

2669

name = client_name, settings = client,

2708

2670

server_settings = server_settings)

2709

2671

2710

2672

if not tcp_server.clients:

2715

2677

try:

2716

2678

with pidfile:

2717

2679

pid = os.getpid()

2718

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

2680

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

2719

2681

except IOError:

2720

2682

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

2721

2683

pidfilename, pid)

2726

2688

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

2727

2689

2728

2690

if use_dbus:

2729

2730

@alternate_dbus_interfaces(

2731

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

2691

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

2692

"se.bsnet.fukt.Mandos"})

2732

2693

class MandosDBusService(DBusObjectWithProperties):

2733

2694

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

2734

2735

2695

def __init__(self):

2736

2696

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

2737

2738

2697

_interface = "se.recompile.Mandos"

2739

2698

2740

2699

@dbus_interface_annotations(_interface)

2741

2700

def _foo(self):

2742

return {

2743

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

2744

"false" }

2701

return { "org.freedesktop.DBus.Property"

2702

".EmitsChangedSignal":

2703

"false"}

2745

2704

2746

2705

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

2747

2706

def ClientAdded(self, objpath):

2761

2720

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

2762

2721

def GetAllClients(self):

2763

2722

"D-Bus method"

2764

return dbus.Array(c.dbus_object_path for c in

2723

return dbus.Array(c.dbus_object_path

2724

for c in

2765

2725

tcp_server.clients.itervalues())

2766

2726

2767

2727

@dbus.service.method(_interface,

2769

2729

def GetAllClientsWithProperties(self):

2770

2730

"D-Bus method"

2771

2731

return dbus.Dictionary(

2772

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

2773

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

2732

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

2733

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

2774

2734

signature="oa{sv}")

2775

2735

2776

2736

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

2814

2774

2815

2775

# A list of attributes that can not be pickled

2816

2776

# + secret.

2817

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

2818

"checker", "server_settings" }

2819

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

2820

.Object):

2777

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

2778

"checker", "server_settings"))

2779

for name, typ in (inspect.getmembers

2780

(dbus.service.Object)):

2821

2781

exclude.add(name)

2822

2782

2823

2783

client_dict["encrypted_secret"] = (client

2830

2790

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

2831

2791

2832

2792

try:

2833

with tempfile.NamedTemporaryFile(

2834

mode='wb',

2835

suffix=".pickle",

2836

prefix='clients-',

2837

dir=os.path.dirname(stored_state_path),

2838

delete=False) as stored_state:

2793

with (tempfile.NamedTemporaryFile

2794

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

2795

dir=os.path.dirname(stored_state_path),

2796

delete=False)) as stored_state:

2839

2797

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

2840

tempname = stored_state.name

2798

tempname=stored_state.name

2841

2799

os.rename(tempname, stored_state_path)

2842

2800

except (IOError, OSError) as e:

2843

2801

if not debug:

2846

2804

except NameError:

2847

2805

pass

2848

2806

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

2849

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

2807

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

2850

2808

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

2851

2809

else:

2852

2810

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

2862

2820

client.disable(quiet=True)

2863

2821

if use_dbus:

2864

2822

# Emit D-Bus signal

2865

mandos_dbus_service.ClientRemoved(

2866

client.dbus_object_path, client.name)

2823

mandos_dbus_service.ClientRemoved(client

2824

.dbus_object_path,

2825

client.name)

2867

2826

client_settings.clear()

2868

2827

2869

2828

atexit.register(cleanup)

2922

2881

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

2923

2882

cleanup()

2924

2883

2925

2926

2884

if __name__ == '__main__':

2927

2885

main()