/mandos/release : revision 237.7.333

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#!/usr/bin/python

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#!/usr/bin/python2.7

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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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import SocketServer as socketserver

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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 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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import ConfigParser as configparser

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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 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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import cPickle as pickle

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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 multiprocessing

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import types

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import binascii

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import tempfile

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import itertools

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import collections

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import codecs

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import dbus

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import dbus.service

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import gobject

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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 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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version = "1.6.3"

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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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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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syslogger = (logging.handlers.SysLogHandler

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(facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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

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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"))

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.if_nametoindex)

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if_nametoindex = ctypes.cdll.LoadLibrary(

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ctypes.util.find_library("c")).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(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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struct.pack(b"16s16x", interface))

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

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return interface_index

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

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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.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(dir=self.tempdir

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) as passfile:

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with tempfile.NamedTemporaryFile(

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dir=self.tempdir) 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(dir = self.tempdir

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) as passfile:

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with tempfile.NamedTemporaryFile(

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dir = self.tempdir) 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

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= data)

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decrypted_plaintext, err = proc.communicate(input = 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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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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return super(AvahiError, self).__init__(value, *args,

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**kwargs)

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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, 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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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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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):

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def rename(self, remove=True):

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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 = unicode(self.server

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.GetAlternativeServiceName(self.name))

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

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self.name)

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self.remove()

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if 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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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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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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def remove(self):

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

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self.rename()

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365

elif state == avahi.ENTRY_GROUP_FAILURE:

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

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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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str(error))

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raise AvahiGroupError("State changed: {!s}".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 = { 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" }

384

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

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396

self.cleanup()

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397

elif state == avahi.SERVER_RUNNING:

370

self.add()

398

try:

399

self.add()

400

except dbus.exceptions.DBusException as error:

401

if (error.get_dbus_name()

402

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

403

logger.info("Local Zeroconf service name"

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" collision.")

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return self.rename(remove=False)

406

else:

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

408

self.cleanup()

409

os._exit(1)

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else:

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if error is None:

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

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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):

391

def rename(self):

430

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

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

393

ret = AvahiService.rename(self)

394

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

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syslogger.setFormatter(logging.Formatter(

434

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

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.format(self.name)))

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return ret

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437

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def timedelta_to_milliseconds(td):

402

"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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def call_pipe(connection, # : multiprocessing.Connection

439

func, *args, **kwargs):

440

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

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

443

return value on the provided multiprocessing.Connection.

444

"""

445

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

446

connection.close()

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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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476

last_checker_status: integer between 0 and 255 reflecting exit

437

477

status of last checker. -1 reflects crashed

438

478

checker, -2 means no checker completed yet.

479

last_checker_signal: The signal which killed the last checker, if

480

last_checker_status is -1

439

481

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

440

482

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

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D-Bus identifiers

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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")

457

client_defaults = { "timeout": "PT5M",

458

"extended_timeout": "PT15M",

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"interval": "PT2M",

460

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

461

"host": "",

462

"approval_delay": "PT0S",

463

"approval_duration": "PT1S",

464

"approved_by_default": "True",

465

"enabled": "True",

466

}

467

468

def timeout_milliseconds(self):

469

"Return the 'timeout' attribute in milliseconds"

470

return timedelta_to_milliseconds(self.timeout)

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472

def extended_timeout_milliseconds(self):

473

"Return the 'extended_timeout' attribute in milliseconds"

474

return timedelta_to_milliseconds(self.extended_timeout)

475

476

def interval_milliseconds(self):

477

"Return the 'interval' attribute in milliseconds"

478

return timedelta_to_milliseconds(self.interval)

479

480

def approval_delay_milliseconds(self):

481

return timedelta_to_milliseconds(self.approval_delay)

499

client_defaults = {

500

"timeout": "PT5M",

501

"extended_timeout": "PT15M",

502

"interval": "PT2M",

503

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

504

"host": "",

505

"approval_delay": "PT0S",

506

"approval_duration": "PT1S",

507

"approved_by_default": "True",

508

"enabled": "True",

509

}

482

510

483

511

@staticmethod

484

512

def config_parser(config):

500

528

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

501

529

"enabled")

502

530

531

# Uppercase and remove spaces from fingerprint for later

532

# comparison purposes with return value from the

533

# fingerprint() function

503

534

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

504

535

.replace(" ", ""))

505

536

if "secret" in section:

510

541

"rb") as secfile:

511

542

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

512

543

else:

513

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

544

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

514

545

.format(section))

515

546

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

516

547

client["extended_timeout"] = string_to_delta(

533

564

server_settings = {}

534

565

self.server_settings = server_settings

535

566

# adding all client settings

536

for setting, value in settings.iteritems():

567

for setting, value in settings.items():

537

568

setattr(self, setting, value)

538

569

539

570

if self.enabled:

547

578

self.expires = None

548

579

549

580

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

550

# Uppercase and remove spaces from fingerprint for later

551

# comparison purposes with return value from the fingerprint()

552

# function

553

581

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

554

582

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

555

583

datetime.datetime.utcnow())

562

590

self.current_checker_command = None

563

591

self.approved = None

564

592

self.approvals_pending = 0

565

self.changedstate = (multiprocessing_manager

566

.Condition(multiprocessing_manager

567

.Lock()))

568

self.client_structure = [attr for attr in

569

self.__dict__.iterkeys()

593

self.changedstate = multiprocessing_manager.Condition(

594

multiprocessing_manager.Lock())

595

self.client_structure = [attr

596

for attr in self.__dict__.iterkeys()

570

597

if not attr.startswith("_")]

571

598

self.client_structure.append("client_structure")

572

599

573

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

574

lambda obj:

575

isinstance(obj,

576

property)):

600

for name, t in inspect.getmembers(

601

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

577

602

if not name.startswith("_"):

578

603

self.client_structure.append(name)

579

604

621

646

# and every interval from then on.

622

647

if self.checker_initiator_tag is not None:

623

648

gobject.source_remove(self.checker_initiator_tag)

624

self.checker_initiator_tag = (gobject.timeout_add

625

(self.interval_milliseconds(),

626

self.start_checker))

649

self.checker_initiator_tag = gobject.timeout_add(

650

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

651

self.start_checker)

627

652

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

628

653

if self.disable_initiator_tag is not None:

629

654

gobject.source_remove(self.disable_initiator_tag)

630

self.disable_initiator_tag = (gobject.timeout_add

631

(self.timeout_milliseconds(),

632

self.disable))

655

self.disable_initiator_tag = gobject.timeout_add(

656

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

633

657

# Also start a new checker *right now*.

634

658

self.start_checker()

635

659

636

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

660

def checker_callback(self, source, condition, connection,

661

command):

637

662

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

638

663

self.checker_callback_tag = None

639

664

self.checker = None

640

if os.WIFEXITED(condition):

641

self.last_checker_status = os.WEXITSTATUS(condition)

665

# Read return code from connection (see call_pipe)

666

returncode = connection.recv()

667

connection.close()

668

669

if returncode >= 0:

670

self.last_checker_status = returncode

671

self.last_checker_signal = None

642

672

if self.last_checker_status == 0:

643

673

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

644

674

vars(self))

645

675

self.checked_ok()

646

676

else:

647

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

648

vars(self))

677

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

649

678

else:

650

679

self.last_checker_status = -1

680

self.last_checker_signal = -returncode

651

681

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

652

682

vars(self))

683

return False

653

684

654

685

def checked_ok(self):

655

686

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

656

687

self.last_checked_ok = datetime.datetime.utcnow()

657

688

self.last_checker_status = 0

689

self.last_checker_signal = None

658

690

self.bump_timeout()

659

691

660

692

def bump_timeout(self, timeout=None):

665

697

gobject.source_remove(self.disable_initiator_tag)

666

698

self.disable_initiator_tag = None

667

699

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

668

self.disable_initiator_tag = (gobject.timeout_add

669

(timedelta_to_milliseconds

670

(timeout), self.disable))

700

self.disable_initiator_tag = gobject.timeout_add(

701

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

671

702

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

672

703

673

704

def need_approval(self):

687

718

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

688

719

# should be.

689

720

690

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

691

try:

692

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

693

except AttributeError:

694

pass

695

except OSError as error:

696

if error.errno != errno.ECHILD:

697

raise

698

else:

699

if pid:

700

logger.warning("Checker was a zombie")

701

gobject.source_remove(self.checker_callback_tag)

702

self.checker_callback(pid, status,

703

self.current_checker_command)

721

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

722

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

723

self.checker.join()

724

self.checker = None

704

725

# Start a new checker if needed

705

726

if self.checker is None:

706

727

# Escape attributes for the shell

707

escaped_attrs = dict(

708

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

709

for attr in

710

self.runtime_expansions)

728

escaped_attrs = {

729

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

730

for attr in self.runtime_expansions }

711

731

try:

712

732

command = self.checker_command % escaped_attrs

713

733

except TypeError as error:

714

734

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

715

self.checker_command, exc_info=error)

716

return True # Try again later

735

self.checker_command,

736

exc_info=error)

737

return True # Try again later

717

738

self.current_checker_command = command

718

try:

719

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

720

command, self.name)

721

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

722

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

723

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

724

# always replaced by /dev/null.)

725

# The exception is when not debugging but nevertheless

726

# running in the foreground; use the previously

727

# created wnull.

728

popen_args = {}

729

if (not self.server_settings["debug"]

730

and self.server_settings["foreground"]):

731

popen_args.update({"stdout": wnull,

732

"stderr": wnull })

733

self.checker = subprocess.Popen(command,

734

close_fds=True,

735

shell=True, cwd="/",

736

**popen_args)

737

except OSError as error:

738

logger.error("Failed to start subprocess",

739

exc_info=error)

740

return True

741

self.checker_callback_tag = (gobject.child_watch_add

742

(self.checker.pid,

743

self.checker_callback,

744

data=command))

745

# The checker may have completed before the gobject

746

# watch was added. Check for this.

747

try:

748

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

749

except OSError as error:

750

if error.errno == errno.ECHILD:

751

# This should never happen

752

logger.error("Child process vanished",

753

exc_info=error)

754

return True

755

raise

756

if pid:

757

gobject.source_remove(self.checker_callback_tag)

758

self.checker_callback(pid, status, command)

739

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

740

self.name)

741

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

742

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

743

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

744

# always replaced by /dev/null.)

745

# The exception is when not debugging but nevertheless

746

# running in the foreground; use the previously

747

# created wnull.

748

popen_args = { "close_fds": True,

749

"shell": True,

750

"cwd": "/" }

751

if (not self.server_settings["debug"]

752

and self.server_settings["foreground"]):

753

popen_args.update({"stdout": wnull,

754

"stderr": wnull })

755

pipe = multiprocessing.Pipe(duplex = False)

756

self.checker = multiprocessing.Process(

757

target = call_pipe,

758

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

759

kwargs = popen_args)

760

self.checker.start()

761

self.checker_callback_tag = gobject.io_add_watch(

762

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

763

self.checker_callback, pipe[0], command)

759

764

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

760

765

return True

761

766

767

772

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

768

773

return

769

774

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

770

try:

771

self.checker.terminate()

772

#time.sleep(0.5)

773

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

774

# self.checker.kill()

775

except OSError as error:

776

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

777

raise

775

self.checker.terminate()

778

776

self.checker = None

779

777

780

778

781

def dbus_service_property(dbus_interface, signature="v",

782

access="readwrite", byte_arrays=False):

779

def dbus_service_property(dbus_interface,

780

signature="v",

781

access="readwrite",

782

byte_arrays=False):

783

"""Decorators for marking methods of a DBusObjectWithProperties to

784

become properties on the D-Bus.

785

794

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

795

if byte_arrays and signature != "ay":

796

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

797

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

797

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

798

799

def decorator(func):

799

800

func._dbus_is_property = True

800

801

func._dbus_interface = dbus_interface

805

806

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

806

807

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

807

808

return func

809

808

810

return decorator

809

811

810

812

819

821

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

820

822

"false"}

821

823

"""

824

822

825

def decorator(func):

823

826

func._dbus_is_interface = True

824

827

func._dbus_interface = dbus_interface

825

828

func._dbus_name = dbus_interface

826

829

return func

830

827

831

return decorator

828

832

829

833

831

835

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

832

836

Usage:

833

837

838

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

839

"org.freedesktop.DBus.Property."

840

"EmitsChangedSignal": "false"})

834

841

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

835

842

access="r")

836

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

837

"org.freedesktop.DBus.Property."

838

"EmitsChangedSignal": "false"})

839

843

def Property_dbus_property(self):

840

844

return dbus.Boolean(False)

845

846

See also the DBusObjectWithAnnotations class.

841

847

"""

848

842

849

def decorator(func):

843

850

func._dbus_annotations = annotations

844

851

return func

852

845

853

return decorator

846

854

847

855

848

856

class DBusPropertyException(dbus.exceptions.DBusException):

849

857

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

850

858

"""

851

def __unicode__(self):

852

return unicode(str(self))

859

pass

853

860

854

861

855

862

class DBusPropertyAccessException(DBusPropertyException):

864

871

pass

865

872

866

873

867

class DBusObjectWithProperties(dbus.service.Object):

868

"""A D-Bus object with properties.

874

class DBusObjectWithAnnotations(dbus.service.Object):

875

"""A D-Bus object with annotations.

869

876

870

Classes inheriting from this can use the dbus_service_property

871

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

872

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

877

Classes inheriting from this can use the dbus_annotations

878

decorator to add annotations to methods or signals.

873

879

"""

874

880

875

881

@staticmethod

879

885

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

880

886

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

881

887

"""

882

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

888

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

883

889

False)

884

890

885

891

def _get_all_dbus_things(self, thing):

886

892

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

887

893

"""

888

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

889

name),

894

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

890

895

athing.__get__(self))

891

896

for cls in self.__class__.__mro__

892

897

for name, athing in

893

inspect.getmembers(cls,

894

self._is_dbus_thing(thing)))

898

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

899

900

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

901

out_signature = "s",

902

path_keyword = 'object_path',

903

connection_keyword = 'connection')

904

def Introspect(self, object_path, connection):

905

"""Overloading of standard D-Bus method.

906

907

Inserts annotation tags on methods and signals.

908

"""

909

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

910

connection)

911

try:

912

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

913

914

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

915

# Add annotation tags

916

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

917

for tag in if_tag.getElementsByTagName(typ):

918

annots = dict()

919

for name, prop in (self.

920

_get_all_dbus_things(typ)):

921

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

922

and prop._dbus_interface

923

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

924

annots.update(getattr(

925

prop, "_dbus_annotations", {}))

926

for name, value in annots.items():

927

ann_tag = document.createElement(

928

"annotation")

929

ann_tag.setAttribute("name", name)

930

ann_tag.setAttribute("value", value)

931

tag.appendChild(ann_tag)

932

# Add interface annotation tags

933

for annotation, value in dict(

934

itertools.chain.from_iterable(

935

annotations().items()

936

for name, annotations

937

in self._get_all_dbus_things("interface")

938

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

939

)).items():

940

ann_tag = document.createElement("annotation")

941

ann_tag.setAttribute("name", annotation)

942

ann_tag.setAttribute("value", value)

943

if_tag.appendChild(ann_tag)

944

# Fix argument name for the Introspect method itself

945

if (if_tag.getAttribute("name")

946

== dbus.INTROSPECTABLE_IFACE):

947

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

948

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

949

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

950

if (arg.getAttribute("direction")

951

== "out"):

952

arg.setAttribute("name",

953

"xml_data")

954

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

955

document.unlink()

956

except (AttributeError, xml.dom.DOMException,

957

xml.parsers.expat.ExpatError) as error:

958

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

959

exc_info=error)

960

return xmlstring

961

962

963

class DBusObjectWithProperties(DBusObjectWithAnnotations):

964

"""A D-Bus object with properties.

965

966

Classes inheriting from this can use the dbus_service_property

967

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

968

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

969

"""

895

970

896

971

def _get_dbus_property(self, interface_name, property_name):

897

972

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

898

973

property with the specified name and interface.

899

974

"""

900

for cls in self.__class__.__mro__:

901

for name, value in (inspect.getmembers

902

(cls,

903

self._is_dbus_thing("property"))):

975

for cls in self.__class__.__mro__:

976

for name, value in inspect.getmembers(

977

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

904

978

if (value._dbus_name == property_name

905

979

and value._dbus_interface == interface_name):

906

980

return value.__get__(self)

907

981

908

982

# No such property

909

raise DBusPropertyNotFound(self.dbus_object_path + ":"

910

+ interface_name + "."

911

+ property_name)

912

913

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

983

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

984

self.dbus_object_path, interface_name, property_name))

985

986

@classmethod

987

def _get_all_interface_names(cls):

988

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

989

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

990

"_dbus_interface", None)

991

for x in (inspect.getmro(cls))

992

for attr in dir(x))

993

if name is not None)

994

995

@dbus.service.method(dbus.PROPERTIES_IFACE,

996

in_signature="ss",

914

997

out_signature="v")

915

998

def Get(self, interface_name, property_name):

916

999

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

935

1018

# signatures other than "ay".

936

1019

if prop._dbus_signature != "ay":

937

1020

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

938

"'ay' signature {0!r}"

1021

"'ay' signature {!r}"

939

1022

.format(prop._dbus_signature))

940

1023

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

941

1024

for byte in value))

942

1025

prop(value)

943

1026

944

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

1027

@dbus.service.method(dbus.PROPERTIES_IFACE,

1028

in_signature="s",

945

1029

out_signature="a{sv}")

946

1030

def GetAll(self, interface_name):

947

1031

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

962

1046

if not hasattr(value, "variant_level"):

963

1047

properties[name] = value

964

1048

continue

965

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

966

value.variant_level+1)

1049

properties[name] = type(value)(

1050

value, variant_level = value.variant_level + 1)

967

1051

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

968

1052

1053

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

1054

def PropertiesChanged(self, interface_name, changed_properties,

1055

invalidated_properties):

1056

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

1057

standard.

1058

"""

1059

pass

1060

969

1061

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

970

1062

out_signature="s",

971

1063

path_keyword='object_path',

975

1067

976

1068

Inserts property tags and interface annotation tags.

977

1069

"""

978

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

979

connection)

1070

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1071

object_path,

1072

connection)

980

1073

try:

981

1074

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

1075

982

1076

def make_tag(document, name, prop):

983

1077

e = document.createElement("property")

984

1078

e.setAttribute("name", name)

985

1079

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

986

1080

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

987

1081

return e

1082

988

1083

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

989

1084

# Add property tags

990

1085

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

993

1088

if prop._dbus_interface

994

1089

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

995

1090

if_tag.appendChild(tag)

996

# Add annotation tags

997

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

998

for tag in if_tag.getElementsByTagName(typ):

999

annots = dict()

1000

for name, prop in (self.

1001

_get_all_dbus_things(typ)):

1002

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

1003

and prop._dbus_interface

1004

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

1005

annots.update(getattr

1006

(prop,

1007

"_dbus_annotations",

1008

{}))

1009

for name, value in annots.iteritems():

1010

ann_tag = document.createElement(

1011

"annotation")

1012

ann_tag.setAttribute("name", name)

1013

ann_tag.setAttribute("value", value)

1014

tag.appendChild(ann_tag)

1015

# Add interface annotation tags

1016

for annotation, value in dict(

1017

itertools.chain.from_iterable(

1018

annotations().iteritems()

1019

for name, annotations in

1020

self._get_all_dbus_things("interface")

1021

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

1022

)).iteritems():

1023

ann_tag = document.createElement("annotation")

1024

ann_tag.setAttribute("name", annotation)

1025

ann_tag.setAttribute("value", value)

1026

if_tag.appendChild(ann_tag)

1091

# Add annotation tags for properties

1092

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

1093

annots = dict()

1094

for name, prop in self._get_all_dbus_things(

1095

"property"):

1096

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

1097

and prop._dbus_interface

1098

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

1099

annots.update(getattr(

1100

prop, "_dbus_annotations", {}))

1101

for name, value in annots.items():

1102

ann_tag = document.createElement(

1103

"annotation")

1104

ann_tag.setAttribute("name", name)

1105

ann_tag.setAttribute("value", value)

1106

tag.appendChild(ann_tag)

1027

1107

# Add the names to the return values for the

1028

1108

# "org.freedesktop.DBus.Properties" methods

1029

1109

if (if_tag.getAttribute("name")

1047

1127

exc_info=error)

1048

1128

return xmlstring

1049

1129

1130

try:

1131

dbus.OBJECT_MANAGER_IFACE

1132

except AttributeError:

1133

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

1134

1135

class DBusObjectWithObjectManager(DBusObjectWithAnnotations):

1136

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

1137

1138

Classes inheriting from this exposes the standard

1139

GetManagedObjects call and the InterfacesAdded and

1140

InterfacesRemoved signals on the standard

1141

"org.freedesktop.DBus.ObjectManager" interface.

1142

1143

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

1144

manually.

1145

"""

1146

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

1147

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

1148

def GetManagedObjects(self):

1149

"""This function must be overridden"""

1150

raise NotImplementedError()

1151

1152

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,

1153

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

1154

def InterfacesAdded(self, object_path, interfaces_and_properties):

1155

pass

1156

1157

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,

1158

signature = "oas")

1159

def InterfacesRemoved(self, object_path, interfaces):

1160

pass

1161

1162

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1163

out_signature = "s",

1164

path_keyword = 'object_path',

1165

connection_keyword = 'connection')

1166

def Introspect(self, object_path, connection):

1167

"""Overloading of standard D-Bus method.

1168

1169

Override return argument name of GetManagedObjects to be

1170

"objpath_interfaces_and_properties"

1171

"""

1172

xmlstring = DBusObjectWithAnnotations(self, object_path,

1173

connection)

1174

try:

1175

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

1176

1177

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

1178

# Fix argument name for the GetManagedObjects method

1179

if (if_tag.getAttribute("name")

1180

== dbus.OBJECT_MANAGER_IFACE):

1181

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

1182

if (cn.getAttribute("name")

1183

== "GetManagedObjects"):

1184

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

1185

if (arg.getAttribute("direction")

1186

== "out"):

1187

arg.setAttribute(

1188

"name",

1189

"objpath_interfaces"

1190

"_and_properties")

1191

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

1192

document.unlink()

1193

except (AttributeError, xml.dom.DOMException,

1194

xml.parsers.expat.ExpatError) as error:

1195

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

1196

exc_info = error)

1197

return xmlstring

1050

1198

1051

1199

def datetime_to_dbus(dt, variant_level=0):

1052

1200

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

1053

1201

if dt is None:

1054

1202

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

1055

return dbus.String(dt.isoformat(),

1056

variant_level=variant_level)

1203

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

1057

1204

1058

1205

1059

1206

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1079

1226

(from DBusObjectWithProperties) and interfaces (from the

1080

1227

dbus_interface_annotations decorator).

1081

1228

"""

1229

1082

1230

def wrapper(cls):

1083

1231

for orig_interface_name, alt_interface_name in (

1084

alt_interface_names.iteritems()):

1232

alt_interface_names.items()):

1085

1233

attr = {}

1086

1234

interface_names = set()

1087

1235

# Go though all attributes of the class

1089

1237

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

1090

1238

# with the wrong interface name

1091

1239

if (not hasattr(attribute, "_dbus_interface")

1092

or not attribute._dbus_interface

1093

.startswith(orig_interface_name)):

1240

or not attribute._dbus_interface.startswith(

1241

orig_interface_name)):

1094

1242

continue

1095

1243

# Create an alternate D-Bus interface name based on

1096

1244

# the current name

1097

alt_interface = (attribute._dbus_interface

1098

.replace(orig_interface_name,

1099

alt_interface_name))

1245

alt_interface = attribute._dbus_interface.replace(

1246

orig_interface_name, alt_interface_name)

1100

1247

interface_names.add(alt_interface)

1101

1248

# Is this a D-Bus signal?

1102

1249

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

1103

# Extract the original non-method undecorated

1104

# function by black magic

1105

nonmethod_func = (dict(

1250

if sys.version_info.major == 2:

1251

# Extract the original non-method undecorated

1252

# function by black magic

1253

nonmethod_func = (dict(

1106

1254

zip(attribute.func_code.co_freevars,

1107

attribute.__closure__))["func"]

1108

.cell_contents)

1255

attribute.__closure__))

1256

["func"].cell_contents)

1257

else:

1258

nonmethod_func = attribute

1109

1259

# Create a new, but exactly alike, function

1110

1260

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

1111

1261

# with the alternate D-Bus interface name

1112

new_function = (dbus.service.signal

1113

(alt_interface,

1114

attribute._dbus_signature)

1115

(types.FunctionType(

1116

nonmethod_func.func_code,

1117

nonmethod_func.func_globals,

1118

nonmethod_func.func_name,

1119

nonmethod_func.func_defaults,

1120

nonmethod_func.func_closure)))

1262

if sys.version_info.major == 2:

1263

new_function = types.FunctionType(

1264

nonmethod_func.func_code,

1265

nonmethod_func.func_globals,

1266

nonmethod_func.func_name,

1267

nonmethod_func.func_defaults,

1268

nonmethod_func.func_closure)

1269

else:

1270

new_function = types.FunctionType(

1271

nonmethod_func.__code__,

1272

nonmethod_func.__globals__,

1273

nonmethod_func.__name__,

1274

nonmethod_func.__defaults__,

1275

nonmethod_func.__closure__)

1276

new_function = (dbus.service.signal(

1277

alt_interface,

1278

attribute._dbus_signature)(new_function))

1121

1279

# Copy annotations, if any

1122

1280

try:

1123

new_function._dbus_annotations = (

1124

dict(attribute._dbus_annotations))

1281

new_function._dbus_annotations = dict(

1282

attribute._dbus_annotations)

1125

1283

except AttributeError:

1126

1284

pass

1127

1285

# Define a creator of a function to call both the

1132

1290

"""This function is a scope container to pass

1133

1291

func1 and func2 to the "call_both" function

1134

1292

outside of its arguments"""

1293

1135

1294

def call_both(*args, **kwargs):

1136

1295

"""This function will emit two D-Bus

1137

1296

signals by calling func1 and func2"""

1138

1297

func1(*args, **kwargs)

1139

1298

func2(*args, **kwargs)

1299

1140

1300

return call_both

1141

1301

# Create the "call_both" function and add it to

1142

1302

# the class

1147

1307

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

1148

1308

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

1149

1309

# to the class.

1150

attr[attrname] = (dbus.service.method

1151

(alt_interface,

1152

attribute._dbus_in_signature,

1153

attribute._dbus_out_signature)

1154

(types.FunctionType

1155

(attribute.func_code,

1156

attribute.func_globals,

1157

attribute.func_name,

1158

attribute.func_defaults,

1159

attribute.func_closure)))

1310

attr[attrname] = (

1311

dbus.service.method(

1312

alt_interface,

1313

attribute._dbus_in_signature,

1314

attribute._dbus_out_signature)

1315

(types.FunctionType(attribute.func_code,

1316

attribute.func_globals,

1317

attribute.func_name,

1318

attribute.func_defaults,

1319

attribute.func_closure)))

1160

1320

# Copy annotations, if any

1161

1321

try:

1162

attr[attrname]._dbus_annotations = (

1163

dict(attribute._dbus_annotations))

1322

attr[attrname]._dbus_annotations = dict(

1323

attribute._dbus_annotations)

1164

1324

except AttributeError:

1165

1325

pass

1166

1326

# Is this a D-Bus property?

1169

1329

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

1170

1330

# property with the alternate D-Bus interface

1171

1331

# name. Add it to the class.

1172

attr[attrname] = (dbus_service_property

1173

(alt_interface,

1174

attribute._dbus_signature,

1175

attribute._dbus_access,

1176

attribute

1177

._dbus_get_args_options

1178

["byte_arrays"])

1179

(types.FunctionType

1180

(attribute.func_code,

1181

attribute.func_globals,

1182

attribute.func_name,

1183

attribute.func_defaults,

1184

attribute.func_closure)))

1332

attr[attrname] = (dbus_service_property(

1333

alt_interface, attribute._dbus_signature,

1334

attribute._dbus_access,

1335

attribute._dbus_get_args_options

1336

["byte_arrays"])

1337

(types.FunctionType(

1338

attribute.func_code,

1339

attribute.func_globals,

1340

attribute.func_name,

1341

attribute.func_defaults,

1342

attribute.func_closure)))

1185

1343

# Copy annotations, if any

1186

1344

try:

1187

attr[attrname]._dbus_annotations = (

1188

dict(attribute._dbus_annotations))

1345

attr[attrname]._dbus_annotations = dict(

1346

attribute._dbus_annotations)

1189

1347

except AttributeError:

1190

1348

pass

1191

1349

# Is this a D-Bus interface?

1194

1352

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

1195

1353

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

1196

1354

# to the class.

1197

attr[attrname] = (dbus_interface_annotations

1198

(alt_interface)

1199

(types.FunctionType

1200

(attribute.func_code,

1201

attribute.func_globals,

1202

attribute.func_name,

1203

attribute.func_defaults,

1204

attribute.func_closure)))

1355

attr[attrname] = (

1356

dbus_interface_annotations(alt_interface)

1357

(types.FunctionType(attribute.func_code,

1358

attribute.func_globals,

1359

attribute.func_name,

1360

attribute.func_defaults,

1361

attribute.func_closure)))

1205

1362

if deprecate:

1206

1363

# Deprecate all alternate interfaces

1207

iname="_AlternateDBusNames_interface_annotation{0}"

1364

iname="_AlternateDBusNames_interface_annotation{}"

1208

1365

for interface_name in interface_names:

1366

1209

1367

@dbus_interface_annotations(interface_name)

1210

1368

def func(self):

1211

1369

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

1212

"true" }

1370

"true" }

1213

1371

# Find an unused name

1214

1372

for aname in (iname.format(i)

1215

1373

for i in itertools.count()):

1219

1377

if interface_names:

1220

1378

# Replace the class with a new subclass of it with

1221

1379

# methods, signals, etc. as created above.

1222

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

1223

(cls,), attr)

1380

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

1381

(cls, ), attr)

1224

1382

return cls

1383

1225

1384

return wrapper

1226

1385

1227

1386

1228

1387

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

1229

"se.bsnet.fukt.Mandos"})

1388

"se.bsnet.fukt.Mandos"})

1230

1389

class ClientDBus(Client, DBusObjectWithProperties):

1231

1390

"""A Client class using D-Bus

1232

1391

1236

1395

"""

1237

1396

1238

1397

runtime_expansions = (Client.runtime_expansions

1239

+ ("dbus_object_path",))

1398

+ ("dbus_object_path", ))

1399

1400

_interface = "se.recompile.Mandos.Client"

1240

1401

1241

1402

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

1242

1403

1245

1406

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

1246

1407

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

1247

1408

# the D-Bus

1248

client_object_name = unicode(self.name).translate(

1409

client_object_name = str(self.name).translate(

1249

1410

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

1250

1411

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

1251

self.dbus_object_path = (dbus.ObjectPath

1252

("/clients/" + client_object_name))

1412

self.dbus_object_path = dbus.ObjectPath(

1413

"/clients/" + client_object_name)

1253

1414

DBusObjectWithProperties.__init__(self, self.bus,

1254

1415

self.dbus_object_path)

1255

1416

1256

def notifychangeproperty(transform_func,

1257

dbus_name, type_func=lambda x: x,

1258

variant_level=1):

1417

def notifychangeproperty(transform_func, dbus_name,

1418

type_func=lambda x: x,

1419

variant_level=1,

1420

invalidate_only=False,

1421

_interface=_interface):

1259

1422

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

1260

1423

its changes to DBus.

1261

1424

1266

1429

to the D-Bus. Default: no transform

1267

1430

variant_level: D-Bus variant level. Default: 1

1268

1431

"""

1269

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

1432

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

1433

1270

1434

def setter(self, value):

1271

1435

if hasattr(self, "dbus_object_path"):

1272

1436

if (not hasattr(self, attrname) or

1273

1437

type_func(getattr(self, attrname, None))

1274

1438

!= type_func(value)):

1275

dbus_value = transform_func(type_func(value),

1276

variant_level

1277

=variant_level)

1278

self.PropertyChanged(dbus.String(dbus_name),

1279

dbus_value)

1439

if invalidate_only:

1440

self.PropertiesChanged(

1441

_interface, dbus.Dictionary(),

1442

dbus.Array((dbus_name, )))

1443

else:

1444

dbus_value = transform_func(

1445

type_func(value),

1446

variant_level = variant_level)

1447

self.PropertyChanged(dbus.String(dbus_name),

1448

dbus_value)

1449

self.PropertiesChanged(

1450

_interface,

1451

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

1452

dbus_value }),

1453

dbus.Array())

1280

1454

setattr(self, attrname, value)

1281

1455

1282

1456

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

1288

1462

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

1289

1463

last_enabled = notifychangeproperty(datetime_to_dbus,

1290

1464

"LastEnabled")

1291

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

1292

type_func = lambda checker:

1293

checker is not None)

1465

checker = notifychangeproperty(

1466

dbus.Boolean, "CheckerRunning",

1467

type_func = lambda checker: checker is not None)

1294

1468

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1295

1469

"LastCheckedOK")

1296

1470

last_checker_status = notifychangeproperty(dbus.Int16,

1299

1473

datetime_to_dbus, "LastApprovalRequest")

1300

1474

approved_by_default = notifychangeproperty(dbus.Boolean,

1301

1475

"ApprovedByDefault")

1302

approval_delay = notifychangeproperty(dbus.UInt64,

1303

"ApprovalDelay",

1304

type_func =

1305

timedelta_to_milliseconds)

1476

approval_delay = notifychangeproperty(

1477

dbus.UInt64, "ApprovalDelay",

1478

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

1306

1479

approval_duration = notifychangeproperty(

1307

1480

dbus.UInt64, "ApprovalDuration",

1308

type_func = timedelta_to_milliseconds)

1481

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

1309

1482

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

1310

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

1311

type_func =

1312

timedelta_to_milliseconds)

1483

timeout = notifychangeproperty(

1484

dbus.UInt64, "Timeout",

1485

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

1313

1486

extended_timeout = notifychangeproperty(

1314

1487

dbus.UInt64, "ExtendedTimeout",

1315

type_func = timedelta_to_milliseconds)

1316

interval = notifychangeproperty(dbus.UInt64,

1317

"Interval",

1318

type_func =

1319

timedelta_to_milliseconds)

1488

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

1489

interval = notifychangeproperty(

1490

dbus.UInt64, "Interval",

1491

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

1320

1492

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

1493

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

1494

invalidate_only=True)

1321

1495

1322

1496

del notifychangeproperty

1323

1497

1330

1504

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

1331

1505

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

1332

1506

1333

def checker_callback(self, pid, condition, command,

1334

*args, **kwargs):

1335

self.checker_callback_tag = None

1336

self.checker = None

1337

if os.WIFEXITED(condition):

1338

exitstatus = os.WEXITSTATUS(condition)

1507

def checker_callback(self, source, condition,

1508

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

1509

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

1510

connection, command, *args,

1511

**kwargs)

1512

exitstatus = self.last_checker_status

1513

if exitstatus >= 0:

1339

1514

# Emit D-Bus signal

1340

1515

self.CheckerCompleted(dbus.Int16(exitstatus),

1341

dbus.Int64(condition),

1516

# This is specific to GNU libC

1517

dbus.Int64(exitstatus << 8),

1342

1518

dbus.String(command))

1343

1519

else:

1344

1520

# Emit D-Bus signal

1345

1521

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

1346

dbus.Int64(condition),

1522

dbus.Int64(

1523

# This is specific to GNU libC

1524

(exitstatus << 8)

1525

| self.last_checker_signal),

1347

1526

dbus.String(command))

1348

1349

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

1350

*args, **kwargs)

1527

return ret

1351

1528

1352

1529

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

1353

old_checker = self.checker

1354

if self.checker is not None:

1355

old_checker_pid = self.checker.pid

1356

else:

1357

old_checker_pid = None

1530

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

1358

1531

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

1359

1532

# Only if new checker process was started

1360

1533

if (self.checker is not None

1369

1542

1370

1543

def approve(self, value=True):

1371

1544

self.approved = value

1372

gobject.timeout_add(timedelta_to_milliseconds

1373

(self.approval_duration),

1374

self._reset_approved)

1545

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

1546

* 1000), self._reset_approved)

1375

1547

self.send_changedstate()

1376

1548

1377

1549

## D-Bus methods, signals & properties

1378

_interface = "se.recompile.Mandos.Client"

1379

1550

1380

1551

## Interfaces

1381

1552

1382

@dbus_interface_annotations(_interface)

1383

def _foo(self):

1384

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

1385

"false"}

1386

1387

1553

## Signals

1388

1554

1389

1555

# CheckerCompleted - signal

1399

1565

pass

1400

1566

1401

1567

# PropertyChanged - signal

1568

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

1402

1569

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

1403

1570

def PropertyChanged(self, property, value):

1404

1571

"D-Bus signal"

1438

1605

self.checked_ok()

1439

1606

1440

1607

# Enable - method

1608

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

1441

1609

@dbus.service.method(_interface)

1442

1610

def Enable(self):

1443

1611

"D-Bus method"

1444

1612

self.enable()

1445

1613

1446

1614

# StartChecker - method

1615

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

1447

1616

@dbus.service.method(_interface)

1448

1617

def StartChecker(self):

1449

1618

"D-Bus method"

1450

1619

self.start_checker()

1451

1620

1452

1621

# Disable - method

1622

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

1453

1623

@dbus.service.method(_interface)

1454

1624

def Disable(self):

1455

1625

"D-Bus method"

1456

1626

self.disable()

1457

1627

1458

1628

# StopChecker - method

1629

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

1459

1630

@dbus.service.method(_interface)

1460

1631

def StopChecker(self):

1461

1632

self.stop_checker()

1468

1639

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

1469

1640

1470

1641

# ApprovedByDefault - property

1471

@dbus_service_property(_interface, signature="b",

1642

@dbus_service_property(_interface,

1643

signature="b",

1472

1644

access="readwrite")

1473

1645

def ApprovedByDefault_dbus_property(self, value=None):

1474

1646

if value is None: # get

1476

1648

self.approved_by_default = bool(value)

1477

1649

1478

1650

# ApprovalDelay - property

1479

@dbus_service_property(_interface, signature="t",

1651

@dbus_service_property(_interface,

1652

signature="t",

1480

1653

access="readwrite")

1481

1654

def ApprovalDelay_dbus_property(self, value=None):

1482

1655

if value is None: # get

1483

return dbus.UInt64(self.approval_delay_milliseconds())

1656

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

1657

* 1000)

1484

1658

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

1485

1659

1486

1660

# ApprovalDuration - property

1487

@dbus_service_property(_interface, signature="t",

1661

@dbus_service_property(_interface,

1662

signature="t",

1488

1663

access="readwrite")

1489

1664

def ApprovalDuration_dbus_property(self, value=None):

1490

1665

if value is None: # get

1491

return dbus.UInt64(timedelta_to_milliseconds(

1492

self.approval_duration))

1666

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

1667

* 1000)

1493

1668

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

1494

1669

1495

1670

# Name - property

1671

@dbus_annotations(

1672

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

1496

1673

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

1497

1674

def Name_dbus_property(self):

1498

1675

return dbus.String(self.name)

1499

1676

1500

1677

# Fingerprint - property

1678

@dbus_annotations(

1679

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

1501

1680

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

1502

1681

def Fingerprint_dbus_property(self):

1503

1682

return dbus.String(self.fingerprint)

1504

1683

1505

1684

# Host - property

1506

@dbus_service_property(_interface, signature="s",

1685

@dbus_service_property(_interface,

1686

signature="s",

1507

1687

access="readwrite")

1508

1688

def Host_dbus_property(self, value=None):

1509

1689

if value is None: # get

1510

1690

return dbus.String(self.host)

1511

self.host = unicode(value)

1691

self.host = str(value)

1512

1692

1513

1693

# Created - property

1694

@dbus_annotations(

1695

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

1514

1696

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

1515

1697

def Created_dbus_property(self):

1516

1698

return datetime_to_dbus(self.created)

1521

1703

return datetime_to_dbus(self.last_enabled)

1522

1704

1523

1705

# Enabled - property

1524

@dbus_service_property(_interface, signature="b",

1706

@dbus_service_property(_interface,

1707

signature="b",

1525

1708

access="readwrite")

1526

1709

def Enabled_dbus_property(self, value=None):

1527

1710

if value is None: # get

1532

1715

self.disable()

1533

1716

1534

1717

# LastCheckedOK - property

1535

@dbus_service_property(_interface, signature="s",

1718

@dbus_service_property(_interface,

1719

signature="s",

1536

1720

access="readwrite")

1537

1721

def LastCheckedOK_dbus_property(self, value=None):

1538

1722

if value is not None:

1541

1725

return datetime_to_dbus(self.last_checked_ok)

1542

1726

1543

1727

# LastCheckerStatus - property

1544

@dbus_service_property(_interface, signature="n",

1545

access="read")

1728

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

1546

1729

def LastCheckerStatus_dbus_property(self):

1547

1730

return dbus.Int16(self.last_checker_status)

1548

1731

1557

1740

return datetime_to_dbus(self.last_approval_request)

1558

1741

1559

1742

# Timeout - property

1560

@dbus_service_property(_interface, signature="t",

1743

@dbus_service_property(_interface,

1744

signature="t",

1561

1745

access="readwrite")

1562

1746

def Timeout_dbus_property(self, value=None):

1563

1747

if value is None: # get

1564

return dbus.UInt64(self.timeout_milliseconds())

1748

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

1565

1749

old_timeout = self.timeout

1566

1750

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

1567

1751

# Reschedule disabling

1576

1760

is None):

1577

1761

return

1578

1762

gobject.source_remove(self.disable_initiator_tag)

1579

self.disable_initiator_tag = (

1580

gobject.timeout_add(

1581

timedelta_to_milliseconds(self.expires - now),

1582

self.disable))

1763

self.disable_initiator_tag = gobject.timeout_add(

1764

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

1765

self.disable)

1583

1766

1584

1767

# ExtendedTimeout - property

1585

@dbus_service_property(_interface, signature="t",

1768

@dbus_service_property(_interface,

1769

signature="t",

1586

1770

access="readwrite")

1587

1771

def ExtendedTimeout_dbus_property(self, value=None):

1588

1772

if value is None: # get

1589

return dbus.UInt64(self.extended_timeout_milliseconds())

1773

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

1774

* 1000)

1590

1775

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

1591

1776

1592

1777

# Interval - property

1593

@dbus_service_property(_interface, signature="t",

1778

@dbus_service_property(_interface,

1779

signature="t",

1594

1780

access="readwrite")

1595

1781

def Interval_dbus_property(self, value=None):

1596

1782

if value is None: # get

1597

return dbus.UInt64(self.interval_milliseconds())

1783

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

1598

1784

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

1599

1785

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

1600

1786

return

1601

1787

if self.enabled:

1602

1788

# Reschedule checker run

1603

1789

gobject.source_remove(self.checker_initiator_tag)

1604

self.checker_initiator_tag = (gobject.timeout_add

1605

(value, self.start_checker))

1606

self.start_checker() # Start one now, too

1790

self.checker_initiator_tag = gobject.timeout_add(

1791

value, self.start_checker)

1792

self.start_checker() # Start one now, too

1607

1793

1608

1794

# Checker - property

1609

@dbus_service_property(_interface, signature="s",

1795

@dbus_service_property(_interface,

1796

signature="s",

1610

1797

access="readwrite")

1611

1798

def Checker_dbus_property(self, value=None):

1612

1799

if value is None: # get

1613

1800

return dbus.String(self.checker_command)

1614

self.checker_command = unicode(value)

1801

self.checker_command = str(value)

1615

1802

1616

1803

# CheckerRunning - property

1617

@dbus_service_property(_interface, signature="b",

1804

@dbus_service_property(_interface,

1805

signature="b",

1618

1806

access="readwrite")

1619

1807

def CheckerRunning_dbus_property(self, value=None):

1620

1808

if value is None: # get

1625

1813

self.stop_checker()

1626

1814

1627

1815

# ObjectPath - property

1816

@dbus_annotations(

1817

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

1818

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

1628

1819

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

1629

1820

def ObjectPath_dbus_property(self):

1630

1821

return self.dbus_object_path # is already a dbus.ObjectPath

1631

1822

1632

1823

# Secret = property

1633

@dbus_service_property(_interface, signature="ay",

1634

access="write", byte_arrays=True)

1824

@dbus_annotations(

1825

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

1826

"invalidates"})

1827

@dbus_service_property(_interface,

1828

signature="ay",

1829

access="write",

1830

byte_arrays=True)

1635

1831

def Secret_dbus_property(self, value):

1636

self.secret = str(value)

1832

self.secret = bytes(value)

1637

1833

1638

1834

del _interface

1639

1835

1643

1839

self._pipe = child_pipe

1644

1840

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

1645

1841

if not self._pipe.recv():

1646

raise KeyError()

1842

raise KeyError(fpr)

1647

1843

1648

1844

def __getattribute__(self, name):

1649

1845

if name == '_pipe':

1653

1849

if data[0] == 'data':

1654

1850

return data[1]

1655

1851

if data[0] == 'function':

1852

1656

1853

def func(*args, **kwargs):

1657

1854

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

1658

1855

return self._pipe.recv()[1]

1856

1659

1857

return func

1660

1858

1661

1859

def __setattr__(self, name, value):

1673

1871

def handle(self):

1674

1872

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

1675

1873

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

1676

unicode(self.client_address))

1874

str(self.client_address))

1677

1875

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

1678

1876

self.server.child_pipe.fileno())

1679

1877

1680

session = (gnutls.connection

1681

.ClientSession(self.request,

1682

gnutls.connection

1683

.X509Credentials()))

1878

session = gnutls.connection.ClientSession(

1879

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

1684

1880

1685

1881

# Note: gnutls.connection.X509Credentials is really a

1686

1882

# generic GnuTLS certificate credentials object so long as

1695

1891

priority = self.server.gnutls_priority

1696

1892

if priority is None:

1697

1893

priority = "NORMAL"

1698

(gnutls.library.functions

1699

.gnutls_priority_set_direct(session._c_object,

1700

priority, None))

1894

gnutls.library.functions.gnutls_priority_set_direct(

1895

session._c_object, priority, None)

1701

1896

1702

1897

# Start communication using the Mandos protocol

1703

1898

# Get protocol number

1723

1918

approval_required = False

1724

1919

try:

1725

1920

try:

1726

fpr = self.fingerprint(self.peer_certificate

1727

(session))

1921

fpr = self.fingerprint(

1922

self.peer_certificate(session))

1728

1923

except (TypeError,

1729

1924

gnutls.errors.GNUTLSError) as error:

1730

1925

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

1745

1940

while True:

1746

1941

if not client.enabled:

1747

1942

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

1748

client.name)

1943

client.name)

1749

1944

if self.server.use_dbus:

1750

1945

# Emit D-Bus signal

1751

1946

client.Rejected("Disabled")

1760

1955

if self.server.use_dbus:

1761

1956

# Emit D-Bus signal

1762

1957

client.NeedApproval(

1763

client.approval_delay_milliseconds(),

1764

client.approved_by_default)

1958

client.approval_delay.total_seconds()

1959

* 1000, client.approved_by_default)

1765

1960

else:

1766

1961

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

1767

1962

client.name)

1773

1968

#wait until timeout or approved

1774

1969

time = datetime.datetime.now()

1775

1970

client.changedstate.acquire()

1776

client.changedstate.wait(

1777

float(timedelta_to_milliseconds(delay)

1778

/ 1000))

1971

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

1779

1972

client.changedstate.release()

1780

1973

time2 = datetime.datetime.now()

1781

1974

if (time2 - time) >= delay:

1800

1993

logger.warning("gnutls send failed",

1801

1994

exc_info=error)

1802

1995

return

1803

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

1804

sent, len(client.secret)

1805

- (sent_size + sent))

1996

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

1997

len(client.secret) - (sent_size

1998

+ sent))

1806

1999

sent_size += sent

1807

2000

1808

2001

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

1825

2018

def peer_certificate(session):

1826

2019

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

1827

2020

# If not an OpenPGP certificate...

1828

if (gnutls.library.functions

1829

.gnutls_certificate_type_get(session._c_object)

2021

if (gnutls.library.functions.gnutls_certificate_type_get(

2022

session._c_object)

1830

2023

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1831

2024

# ...do the normal thing

1832

2025

return session.peer_certificate

1846

2039

def fingerprint(openpgp):

1847

2040

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

1848

2041

# New GnuTLS "datum" with the OpenPGP public key

1849

datum = (gnutls.library.types

1850

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

1851

ctypes.POINTER

1852

(ctypes.c_ubyte)),

1853

ctypes.c_uint(len(openpgp))))

2042

datum = gnutls.library.types.gnutls_datum_t(

2043

ctypes.cast(ctypes.c_char_p(openpgp),

2044

ctypes.POINTER(ctypes.c_ubyte)),

2045

ctypes.c_uint(len(openpgp)))

1854

2046

# New empty GnuTLS certificate

1855

2047

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1856

(gnutls.library.functions

1857

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

2048

gnutls.library.functions.gnutls_openpgp_crt_init(

2049

ctypes.byref(crt))

1858

2050

# Import the OpenPGP public key into the certificate

1859

(gnutls.library.functions

1860

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

1861

gnutls.library.constants

1862

.GNUTLS_OPENPGP_FMT_RAW))

2051

gnutls.library.functions.gnutls_openpgp_crt_import(

2052

crt, ctypes.byref(datum),

2053

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

1863

2054

# Verify the self signature in the key

1864

2055

crtverify = ctypes.c_uint()

1865

(gnutls.library.functions

1866

.gnutls_openpgp_crt_verify_self(crt, 0,

1867

ctypes.byref(crtverify)))

2056

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

2057

crt, 0, ctypes.byref(crtverify))

1868

2058

if crtverify.value != 0:

1869

2059

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1870

raise (gnutls.errors.CertificateSecurityError

1871

("Verify failed"))

2060

raise gnutls.errors.CertificateSecurityError(

2061

"Verify failed")

1872

2062

# New buffer for the fingerprint

1873

2063

buf = ctypes.create_string_buffer(20)

1874

2064

buf_len = ctypes.c_size_t()

1875

2065

# Get the fingerprint from the certificate into the buffer

1876

(gnutls.library.functions

1877

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

1878

ctypes.byref(buf_len)))

2066

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

2067

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

1879

2068

# Deinit the certificate

1880

2069

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1881

2070

# Convert the buffer to a Python bytestring

1887

2076

1888

2077

class MultiprocessingMixIn(object):

1889

2078

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

2079

1890

2080

def sub_process_main(self, request, address):

1891

2081

try:

1892

2082

self.finish_request(request, address)

1904

2094

1905

2095

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1906

2096

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

2097

1907

2098

def process_request(self, request, client_address):

1908

2099

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

1909

2100

1930

2121

interface: None or a network interface name (string)

1931

2122

use_ipv6: Boolean; to use IPv6 or not

1932

2123

"""

2124

1933

2125

def __init__(self, server_address, RequestHandlerClass,

1934

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

2126

interface=None,

2127

use_ipv6=True,

2128

socketfd=None):

1935

2129

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

1936

2130

creating a new one with socket.socket().

1937

2131

"""

1978

2172

self.interface)

1979

2173

else:

1980

2174

try:

1981

self.socket.setsockopt(socket.SOL_SOCKET,

1982

SO_BINDTODEVICE,

1983

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

2175

self.socket.setsockopt(

2176

socket.SOL_SOCKET, SO_BINDTODEVICE,

2177

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

1984

2178

except socket.error as error:

1985

2179

if error.errno == errno.EPERM:

1986

2180

logger.error("No permission to bind to"

2004

2198

self.server_address = (any_address,

2005

2199

self.server_address[1])

2006

2200

elif not self.server_address[1]:

2007

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

2008

0)

2201

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

2009

2202

# if self.interface:

2010

2203

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

2011

2204

# 0, # port

2025

2218

2026

2219

Assumes a gobject.MainLoop event loop.

2027

2220

"""

2221

2028

2222

def __init__(self, server_address, RequestHandlerClass,

2029

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

2030

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

2223

interface=None,

2224

use_ipv6=True,

2225

clients=None,

2226

gnutls_priority=None,

2227

use_dbus=True,

2228

socketfd=None):

2031

2229

self.enabled = False

2032

2230

self.clients = clients

2033

2231

if self.clients is None:

2039

2237

interface = interface,

2040

2238

use_ipv6 = use_ipv6,

2041

2239

socketfd = socketfd)

2240

2042

2241

def server_activate(self):

2043

2242

if self.enabled:

2044

2243

return socketserver.TCPServer.server_activate(self)

2048

2247

2049

2248

def add_pipe(self, parent_pipe, proc):

2050

2249

# Call "handle_ipc" for both data and EOF events

2051

gobject.io_add_watch(parent_pipe.fileno(),

2052

gobject.IO_IN | gobject.IO_HUP,

2053

functools.partial(self.handle_ipc,

2054

parent_pipe =

2055

parent_pipe,

2056

proc = proc))

2250

gobject.io_add_watch(

2251

parent_pipe.fileno(),

2252

gobject.IO_IN | gobject.IO_HUP,

2253

functools.partial(self.handle_ipc,

2254

parent_pipe = parent_pipe,

2255

proc = proc))

2057

2256

2058

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

2059

proc = None, client_object=None):

2257

def handle_ipc(self, source, condition,

2258

parent_pipe=None,

2259

proc = None,

2260

client_object=None):

2060

2261

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

2061

2262

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

2062

2263

# Wait for other process to exit

2085

2286

parent_pipe.send(False)

2086

2287

return False

2087

2288

2088

gobject.io_add_watch(parent_pipe.fileno(),

2089

gobject.IO_IN | gobject.IO_HUP,

2090

functools.partial(self.handle_ipc,

2091

parent_pipe =

2092

parent_pipe,

2093

proc = proc,

2094

client_object =

2095

client))

2289

gobject.io_add_watch(

2290

parent_pipe.fileno(),

2291

gobject.IO_IN | gobject.IO_HUP,

2292

functools.partial(self.handle_ipc,

2293

parent_pipe = parent_pipe,

2294

proc = proc,

2295

client_object = client))

2096

2296

parent_pipe.send(True)

2097

2297

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

2098

2298

# same fileno

2104

2304

2105

2305

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

2106

2306

funcname)(*args,

2107

**kwargs)))

2307

**kwargs)))

2108

2308

2109

2309

if command == 'getattr':

2110

2310

attrname = request[1]

2111

if callable(client_object.__getattribute__(attrname)):

2112

parent_pipe.send(('function',))

2311

if isinstance(client_object.__getattribute__(attrname),

2312

collections.Callable):

2313

parent_pipe.send(('function', ))

2113

2314

else:

2114

parent_pipe.send(('data', client_object

2115

.__getattribute__(attrname)))

2315

parent_pipe.send((

2316

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

2116

2317

2117

2318

if command == 'setattr':

2118

2319

attrname = request[1]

2149

2350

# avoid excessive use of external libraries.

2150

2351

2151

2352

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

2152

Token = collections.namedtuple("Token",

2153

("regexp", # To match token; if

2154

# "value" is not None,

2155

# must have a "group"

2156

# containing digits

2157

"value", # datetime.timedelta or

2158

# None

2159

"followers")) # Tokens valid after

2160

# this token

2353

Token = collections.namedtuple("Token", (

2354

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

2355

# a "group" containing digits

2356

"value", # datetime.timedelta or None

2357

"followers")) # Tokens valid after this token

2161

2358

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

2162

2359

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

2163

2360

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

2164

2361

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

2165

2362

datetime.timedelta(seconds=1),

2166

frozenset((token_end,)))

2363

frozenset((token_end, )))

2167

2364

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

2168

2365

datetime.timedelta(minutes=1),

2169

2366

frozenset((token_second, token_end)))

2185

2382

frozenset((token_month, token_end)))

2186

2383

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

2187

2384

datetime.timedelta(weeks=1),

2188

frozenset((token_end,)))

2385

frozenset((token_end, )))

2189

2386

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

2190

2387

frozenset((token_year, token_month,

2191

2388

token_day, token_time,

2192

token_week))),

2389

token_week)))

2193

2390

# Define starting values

2194

2391

value = datetime.timedelta() # Value so far

2195

2392

found_token = None

2196

followers = frozenset(token_duration,) # Following valid tokens

2393

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

2197

2394

s = duration # String left to parse

2198

2395

# Loop until end token is found

2199

2396

while found_token is not token_end:

2216

2413

break

2217

2414

else:

2218

2415

# No currently valid tokens were found

2219

raise ValueError("Invalid RFC 3339 duration")

2416

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

2417

.format(duration))

2220

2418

# End token found

2221

2419

return value

2222

2420

2246

2444

timevalue = datetime.timedelta(0)

2247

2445

for s in interval.split():

2248

2446

try:

2249

suffix = unicode(s[-1])

2447

suffix = s[-1]

2250

2448

value = int(s[:-1])

2251

2449

if suffix == "d":

2252

2450

delta = datetime.timedelta(value)

2259

2457

elif suffix == "w":

2260

2458

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

2261

2459

else:

2262

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

2263

.format(suffix))

2460

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

2264

2461

except IndexError as e:

2265

2462

raise ValueError(*(e.args))

2266

2463

timevalue += delta

2283

2480

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

2284

2481

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

2285

2482

raise OSError(errno.ENODEV,

2286

"{0} not a character device"

2483

"{} not a character device"

2287

2484

.format(os.devnull))

2288

2485

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

2289

2486

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

2299

2496

2300

2497

parser = argparse.ArgumentParser()

2301

2498

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

2302

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

2499

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

2303

2500

help="show version number and exit")

2304

2501

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

2305

2502

help="Bind to interface IF")

2338

2535

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

2339

2536

parser.add_argument("--foreground", action="store_true",

2340

2537

help="Run in foreground", default=None)

2538

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

2539

dest="zeroconf", help="Do not use Zeroconf",

2540

default=None)

2341

2541

2342

2542

options = parser.parse_args()

2343

2543

2344

2544

if options.check:

2345

2545

import doctest

2346

doctest.testmod()

2347

sys.exit()

2546

fail_count, test_count = doctest.testmod()

2547

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

2348

2548

2349

2549

# Default values for config file for server-global settings

2350

2550

server_defaults = { "interface": "",

2352

2552

"port": "",

2353

2553

"debug": "False",

2354

2554

"priority":

2355

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

2555

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

2556

":+SIGN-DSA-SHA256",

2356

2557

"servicename": "Mandos",

2357

2558

"use_dbus": "True",

2358

2559

"use_ipv6": "True",

2361

2562

"socket": "",

2362

2563

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

2363

2564

"foreground": "False",

2364

}

2565

"zeroconf": "True",

2566

}

2365

2567

2366

2568

# Parse config file for server-global settings

2367

2569

server_config = configparser.SafeConfigParser(server_defaults)

2368

2570

del server_defaults

2369

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

2370

"mandos.conf"))

2571

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

2371

2572

# Convert the SafeConfigParser object to a dict

2372

2573

server_settings = server_config.defaults()

2373

2574

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

2391

2592

# Override the settings from the config file with command line

2392

2593

# options, if set.

2393

2594

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

2394

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

2395

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

2396

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

2595

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

2596

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

2597

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

2397

2598

value = getattr(options, option)

2398

2599

if value is not None:

2399

2600

server_settings[option] = value

2400

2601

del options

2401

2602

# Force all strings to be unicode

2402

2603

for option in server_settings.keys():

2403

if type(server_settings[option]) is str:

2404

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

2604

if isinstance(server_settings[option], bytes):

2605

server_settings[option] = (server_settings[option]

2606

.decode("utf-8"))

2405

2607

# Force all boolean options to be boolean

2406

2608

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

2407

"foreground"):

2609

"foreground", "zeroconf"):

2408

2610

server_settings[option] = bool(server_settings[option])

2409

2611

# Debug implies foreground

2410

2612

if server_settings["debug"]:

2413

2615

2414

2616

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

2415

2617

2618

if (not server_settings["zeroconf"]

2619

and not (server_settings["port"]

2620

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

2621

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

2622

2416

2623

# For convenience

2417

2624

debug = server_settings["debug"]

2418

2625

debuglevel = server_settings["debuglevel"]

2421

2628

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

2422

2629

stored_state_file)

2423

2630

foreground = server_settings["foreground"]

2631

zeroconf = server_settings["zeroconf"]

2424

2632

2425

2633

if debug:

2426

2634

initlogger(debug, logging.DEBUG)

2432

2640

initlogger(debug, level)

2433

2641

2434

2642

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

2435

syslogger.setFormatter(logging.Formatter

2436

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

2437

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

2438

.format(server_settings

2439

["servicename"])))

2643

syslogger.setFormatter(

2644

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

2645

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

2646

server_settings["servicename"])))

2440

2647

2441

2648

# Parse config file with clients

2442

2649

client_config = configparser.SafeConfigParser(Client

2447

2654

global mandos_dbus_service

2448

2655

mandos_dbus_service = None

2449

2656

2450

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

2451

server_settings["port"]),

2452

ClientHandler,

2453

interface=(server_settings["interface"]

2454

or None),

2455

use_ipv6=use_ipv6,

2456

gnutls_priority=

2457

server_settings["priority"],

2458

use_dbus=use_dbus,

2459

socketfd=(server_settings["socket"]

2460

or None))

2657

socketfd = None

2658

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

2659

socketfd = server_settings["socket"]

2660

tcp_server = MandosServer(

2661

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

2662

ClientHandler,

2663

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

2664

use_ipv6=use_ipv6,

2665

gnutls_priority=server_settings["priority"],

2666

use_dbus=use_dbus,

2667

socketfd=socketfd)

2461

2668

if not foreground:

2462

2669

pidfilename = "/run/mandos.pid"

2463

2670

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

2464

2671

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

2465

2672

pidfile = None

2466

2673

try:

2467

pidfile = open(pidfilename, "w")

2674

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

2468

2675

except IOError as e:

2469

2676

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

2470

2677

exc_info=e)

2497

2704

def debug_gnutls(level, string):

2498

2705

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

2499

2706

2500

(gnutls.library.functions

2501

.gnutls_global_set_log_function(debug_gnutls))

2707

gnutls.library.functions.gnutls_global_set_log_function(

2708

debug_gnutls)

2502

2709

2503

2710

# Redirect stdin so all checkers get /dev/null

2504

2711

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

2524

2731

if use_dbus:

2525

2732

try:

2526

2733

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

2527

bus, do_not_queue=True)

2528

old_bus_name = (dbus.service.BusName

2529

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

2530

do_not_queue=True))

2531

except dbus.exceptions.NameExistsException as e:

2734

bus,

2735

do_not_queue=True)

2736

old_bus_name = dbus.service.BusName(

2737

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

2738

do_not_queue=True)

2739

except dbus.exceptions.DBusException as e:

2532

2740

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

2533

2741

use_dbus = False

2534

2742

server_settings["use_dbus"] = False

2535

2743

tcp_server.use_dbus = False

2536

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2537

service = AvahiServiceToSyslog(name =

2538

server_settings["servicename"],

2539

servicetype = "_mandos._tcp",

2540

protocol = protocol, bus = bus)

2541

if server_settings["interface"]:

2542

service.interface = (if_nametoindex

2543

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

2744

if zeroconf:

2745

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2746

service = AvahiServiceToSyslog(

2747

name = server_settings["servicename"],

2748

servicetype = "_mandos._tcp",

2749

protocol = protocol,

2750

bus = bus)

2751

if server_settings["interface"]:

2752

service.interface = if_nametoindex(

2753

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

2544

2754

2545

2755

global multiprocessing_manager

2546

2756

multiprocessing_manager = multiprocessing.Manager()

2565

2775

if server_settings["restore"]:

2566

2776

try:

2567

2777

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

2568

clients_data, old_client_settings = (pickle.load

2569

(stored_state))

2778

clients_data, old_client_settings = pickle.load(

2779

stored_state)

2570

2780

os.remove(stored_state_path)

2571

2781

except IOError as e:

2572

2782

if e.errno == errno.ENOENT:

2573

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

2574

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

2783

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

2784

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

2575

2785

else:

2576

2786

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

2577

2787

exc_info=e)

2578

2788

raise

2579

2789

except EOFError as e:

2580

2790

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

2581

"EOFError:", exc_info=e)

2791

"EOFError:",

2792

exc_info=e)

2582

2793

2583

2794

with PGPEngine() as pgp:

2584

for client_name, client in clients_data.iteritems():

2795

for client_name, client in clients_data.items():

2585

2796

# Skip removed clients

2586

2797

if client_name not in client_settings:

2587

2798

continue

2596

2807

# For each value in new config, check if it

2597

2808

# differs from the old config value (Except for

2598

2809

# the "secret" attribute)

2599

if (name != "secret" and

2600

value != old_client_settings[client_name]

2601

[name]):

2810

if (name != "secret"

2811

and (value !=

2812

old_client_settings[client_name][name])):

2602

2813

client[name] = value

2603

2814

except KeyError:

2604

2815

pass

2605

2816

2606

2817

# Clients who has passed its expire date can still be

2607

# enabled if its last checker was successful. Clients

2818

# enabled if its last checker was successful. A Client

2608

2819

# whose checker succeeded before we stored its state is

2609

2820

# assumed to have successfully run all checkers during

2610

2821

# downtime.

2612

2823

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

2613

2824

if not client["last_checked_ok"]:

2614

2825

logger.warning(

2615

"disabling client {0} - Client never "

2616

"performed a successful checker"

2617

.format(client_name))

2826

"disabling client {} - Client never "

2827

"performed a successful checker".format(

2828

client_name))

2618

2829

client["enabled"] = False

2619

2830

elif client["last_checker_status"] != 0:

2620

2831

logger.warning(

2621

"disabling client {0} - Client "

2622

"last checker failed with error code {1}"

2623

.format(client_name,

2624

client["last_checker_status"]))

2832

"disabling client {} - Client last"

2833

" checker failed with error code"

2834

" {}".format(

2835

client_name,

2836

client["last_checker_status"]))

2625

2837

client["enabled"] = False

2626

2838

else:

2627

client["expires"] = (datetime.datetime

2628

.utcnow()

2629

+ client["timeout"])

2839

client["expires"] = (

2840

datetime.datetime.utcnow()

2841

+ client["timeout"])

2630

2842

logger.debug("Last checker succeeded,"

2631

" keeping {0} enabled"

2632

.format(client_name))

2843

" keeping {} enabled".format(

2844

client_name))

2633

2845

try:

2634

client["secret"] = (

2635

pgp.decrypt(client["encrypted_secret"],

2636

client_settings[client_name]

2637

["secret"]))

2846

client["secret"] = pgp.decrypt(

2847

client["encrypted_secret"],

2848

client_settings[client_name]["secret"])

2638

2849

except PGPError:

2639

2850

# If decryption fails, we use secret from new settings

2640

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

2641

.format(client_name))

2642

client["secret"] = (

2643

client_settings[client_name]["secret"])

2851

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

2852

client_name))

2853

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

2854

["secret"])

2644

2855

2645

2856

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

2646

2857

for client_name in (set(old_client_settings)

2651

2862

clients_data[client_name] = client_settings[client_name]

2652

2863

2653

2864

# Create all client objects

2654

for client_name, client in clients_data.iteritems():

2865

for client_name, client in clients_data.items():

2655

2866

tcp_server.clients[client_name] = client_class(

2656

name = client_name, settings = client,

2867

name = client_name,

2868

settings = client,

2657

2869

server_settings = server_settings)

2658

2870

2659

2871

if not tcp_server.clients:

2661

2873

2662

2874

if not foreground:

2663

2875

if pidfile is not None:

2876

pid = os.getpid()

2664

2877

try:

2665

2878

with pidfile:

2666

pid = os.getpid()

2667

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

2879

print(pid, file=pidfile)

2668

2880

except IOError:

2669

2881

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

2670

2882

pidfilename, pid)

2675

2887

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

2676

2888

2677

2889

if use_dbus:

2678

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

2679

"se.bsnet.fukt.Mandos"})

2680

class MandosDBusService(DBusObjectWithProperties):

2890

2891

@alternate_dbus_interfaces(

2892

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

2893

class MandosDBusService(DBusObjectWithObjectManager):

2681

2894

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

2895

2682

2896

def __init__(self):

2683

2897

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

2898

2684

2899

_interface = "se.recompile.Mandos"

2685

2900

2686

@dbus_interface_annotations(_interface)

2687

def _foo(self):

2688

return { "org.freedesktop.DBus.Property"

2689

".EmitsChangedSignal":

2690

"false"}

2691

2692

2901

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

2693

2902

def ClientAdded(self, objpath):

2694

2903

"D-Bus signal"

2699

2908

"D-Bus signal"

2700

2909

pass

2701

2910

2911

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

2912

"true"})

2702

2913

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

2703

2914

def ClientRemoved(self, objpath, name):

2704

2915

"D-Bus signal"

2705

2916

pass

2706

2917

2918

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

2919

"true"})

2707

2920

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

2708

2921

def GetAllClients(self):

2709

2922

"D-Bus method"

2710

return dbus.Array(c.dbus_object_path

2711

for c in

2923

return dbus.Array(c.dbus_object_path for c in

2712

2924

tcp_server.clients.itervalues())

2713

2925

2926

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

2927

"true"})

2714

2928

@dbus.service.method(_interface,

2715

2929

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

2716

2930

def GetAllClientsWithProperties(self):

2717

2931

"D-Bus method"

2718

2932

return dbus.Dictionary(

2719

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

2720

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

2933

{ c.dbus_object_path: c.GetAll(

2934

"se.recompile.Mandos.Client")

2935

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

2721

2936

signature="oa{sv}")

2722

2937

2723

2938

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

2727

2942

if c.dbus_object_path == object_path:

2728

2943

del tcp_server.clients[c.name]

2729

2944

c.remove_from_connection()

2730

# Don't signal anything except ClientRemoved

2945

# Don't signal the disabling

2731

2946

c.disable(quiet=True)

2732

# Emit D-Bus signal

2733

self.ClientRemoved(object_path, c.name)

2947

# Emit D-Bus signal for removal

2948

self.client_removed_signal(c)

2734

2949

return

2735

2950

raise KeyError(object_path)

2736

2951

2737

2952

del _interface

2953

2954

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

2955

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

2956

def GetManagedObjects(self):

2957

"""D-Bus method"""

2958

return dbus.Dictionary(

2959

{ client.dbus_object_path:

2960

dbus.Dictionary(

2961

{ interface: client.GetAll(interface)

2962

for interface in

2963

client._get_all_interface_names()})

2964

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

2965

2966

def client_added_signal(self, client):

2967

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

2968

if use_dbus:

2969

# New standard signal

2970

self.InterfacesAdded(

2971

client.dbus_object_path,

2972

dbus.Dictionary(

2973

{ interface: client.GetAll(interface)

2974

for interface in

2975

client._get_all_interface_names()}))

2976

# Old signal

2977

self.ClientAdded(client.dbus_object_path)

2978

2979

def client_removed_signal(self, client):

2980

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

2981

if use_dbus:

2982

# New standard signal

2983

self.InterfacesRemoved(

2984

client.dbus_object_path,

2985

client._get_all_interface_names())

2986

# Old signal

2987

self.ClientRemoved(client.dbus_object_path,

2988

client.name)

2738

2989

2739

2990

mandos_dbus_service = MandosDBusService()

2740

2991

2741

2992

def cleanup():

2742

2993

"Cleanup function; run on exit"

2743

service.cleanup()

2994

if zeroconf:

2995

service.cleanup()

2744

2996

2745

2997

multiprocessing.active_children()

2746

2998

wnull.close()

2760

3012

2761

3013

# A list of attributes that can not be pickled

2762

3014

# + secret.

2763

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

2764

"checker", "server_settings"))

2765

for name, typ in (inspect.getmembers

2766

(dbus.service.Object)):

3015

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

3016

"checker", "server_settings" }

3017

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

3018

.Object):

2767

3019

exclude.add(name)

2768

3020

2769

3021

client_dict["encrypted_secret"] = (client

2776

3028

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

2777

3029

2778

3030

try:

2779

with (tempfile.NamedTemporaryFile

2780

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

2781

dir=os.path.dirname(stored_state_path),

2782

delete=False)) as stored_state:

3031

with tempfile.NamedTemporaryFile(

3032

mode='wb',

3033

suffix=".pickle",

3034

prefix='clients-',

3035

dir=os.path.dirname(stored_state_path),

3036

delete=False) as stored_state:

2783

3037

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

2784

tempname=stored_state.name

3038

tempname = stored_state.name

2785

3039

os.rename(tempname, stored_state_path)

2786

3040

except (IOError, OSError) as e:

2787

3041

if not debug:

2790

3044

except NameError:

2791

3045

pass

2792

3046

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

2793

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

3047

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

2794

3048

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

2795

3049

else:

2796

3050

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

2802

3056

name, client = tcp_server.clients.popitem()

2803

3057

if use_dbus:

2804

3058

client.remove_from_connection()

2805

# Don't signal anything except ClientRemoved

3059

# Don't signal the disabling

2806

3060

client.disable(quiet=True)

2807

if use_dbus:

2808

# Emit D-Bus signal

2809

mandos_dbus_service.ClientRemoved(client

2810

.dbus_object_path,

2811

client.name)

3061

# Emit D-Bus signal for removal

3062

mandos_dbus_service.client_removed_signal(client)

2812

3063

client_settings.clear()

2813

3064

2814

3065

atexit.register(cleanup)

2815

3066

2816

3067

for client in tcp_server.clients.itervalues():

2817

3068

if use_dbus:

2818

# Emit D-Bus signal

2819

mandos_dbus_service.ClientAdded(client.dbus_object_path)

3069

# Emit D-Bus signal for adding

3070

mandos_dbus_service.client_added_signal(client)

2820

3071

# Need to initiate checking of clients

2821

3072

if client.enabled:

2822

3073

client.init_checker()

2825

3076

tcp_server.server_activate()

2826

3077

2827

3078

# Find out what port we got

2828

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

3079

if zeroconf:

3080

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

2829

3081

if use_ipv6:

2830

3082

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

2831

3083

" flowinfo %d, scope_id %d",

2837

3089

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

2838

3090

2839

3091

try:

2840

# From the Avahi example code

2841

try:

2842

service.activate()

2843

except dbus.exceptions.DBusException as error:

2844

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

2845

cleanup()

2846

sys.exit(1)

2847

# End of Avahi example code

3092

if zeroconf:

3093

# From the Avahi example code

3094

try:

3095

service.activate()

3096

except dbus.exceptions.DBusException as error:

3097

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

3098

cleanup()

3099

sys.exit(1)

3100

# End of Avahi example code

2848

3101

2849

3102

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

2850

3103

lambda *args, **kwargs:

2865

3118

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

2866

3119

cleanup()

2867

3120

3121

2868

3122

if __name__ == '__main__':

2869

3123

main()