/mandos/release : revision 237.7.238

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#!/usr/bin/python2.7

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#!/usr/bin/python

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

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#

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

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

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#

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# Everything else is

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#

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

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

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from future_builtins import *

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try:

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import SocketServer as socketserver

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except ImportError:

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import socketserver

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import SocketServer as socketserver

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import socket

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import argparse

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import datetime

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import errno

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import gnutls.crypto

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import gnutls.connection

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import gnutls.errors

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import gnutls.library.functions

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import gnutls.library.constants

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import gnutls.library.types

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try:

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import ConfigParser as configparser

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except ImportError:

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import configparser

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import ConfigParser as configparser

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import sys

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import re

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import os

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import struct

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import fcntl

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import functools

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try:

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import cPickle as pickle

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except ImportError:

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import pickle

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import cPickle as pickle

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import multiprocessing

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import types

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import binascii

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import 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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try:

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import gobject

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except ImportError:

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from gi.repository import GObject as gobject

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import gobject

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import avahi

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from dbus.mainloop.glib import DBusGMainLoop

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import ctypes

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except ImportError:

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SO_BINDTODEVICE = None

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if sys.version_info.major == 2:

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str = unicode

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version = "1.7.1"

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version = "1.6.5"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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syslogger = None

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try:

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if_nametoindex = ctypes.cdll.LoadLibrary(

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

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if_nametoindex = (ctypes.cdll.LoadLibrary

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

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.if_nametoindex)

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except (OSError, AttributeError):

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def if_nametoindex(interface):

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

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

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

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ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

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

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

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

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interface))

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

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ifreq[16:20])[0]

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return interface_index

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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 = (logging.handlers.SysLogHandler

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(facility =

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logging.handlers.SysLogHandler.LOG_DAEMON,

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

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syslogger.setFormatter(logging.Formatter

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

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' %(message)s'))

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class PGPEngine(object):

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

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def __init__(self):

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

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self.gnupgargs = ['--batch',

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def encrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(

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dir=self.tempdir) as passfile:

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with tempfile.NamedTemporaryFile(dir=self.tempdir

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) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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def decrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(

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dir = self.tempdir) as passfile:

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with tempfile.NamedTemporaryFile(dir = self.tempdir

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) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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stdin = subprocess.PIPE,

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stdout = subprocess.PIPE,

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stderr = subprocess.PIPE)

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

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decrypted_plaintext, err = proc.communicate(input

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= data)

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if proc.returncode != 0:

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raise PGPError(err)

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return decrypted_plaintext

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class AvahiError(Exception):

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

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self.value = value

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

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**kwargs)

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

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def __unicode__(self):

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return unicode(repr(self.value))

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class AvahiServiceError(AvahiError):

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pass

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class AvahiGroupError(AvahiError):

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pass

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bus: dbus.SystemBus()

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"""

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def __init__(self,

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interface = avahi.IF_UNSPEC,

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name = None,

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servicetype = None,

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port = None,

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TXT = None,

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domain = "",

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host = "",

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max_renames = 32768,

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protocol = avahi.PROTO_UNSPEC,

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bus = None):

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

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

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

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protocol = avahi.PROTO_UNSPEC, bus = None):

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self.interface = interface

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self.name = name

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self.type = servicetype

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self.bus = bus

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self.entry_group_state_changed_match = None

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def rename(self, remove=True):

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def rename(self):

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

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if self.rename_count >= self.max_renames:

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

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" after %i retries, exiting.",

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self.rename_count)

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raise AvahiServiceError("Too many renames")

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self.name = str(

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self.server.GetAlternativeServiceName(self.name))

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self.rename_count += 1

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self.name = unicode(self.server

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.GetAlternativeServiceName(self.name))

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

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self.name)

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if remove:

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self.remove()

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self.remove()

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

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if (error.get_dbus_name()

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

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

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return self.rename(remove=False)

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else:

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

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self.cleanup()

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os._exit(1)

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

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self.cleanup()

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os._exit(1)

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self.rename_count += 1

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def remove(self):

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

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

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

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str(error))

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

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unicode(error))

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

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.format(error))

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def cleanup(self):

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

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

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

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

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bad_states = {

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avahi.SERVER_INVALID: "Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION: "Zeroconf server name collision",

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avahi.SERVER_FAILURE: "Zeroconf server failure",

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}

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bad_states = { avahi.SERVER_INVALID:

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"Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION:

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"Zeroconf server name collision",

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avahi.SERVER_FAILURE:

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"Zeroconf server failure" }

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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

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

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self.cleanup()

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elif state == avahi.SERVER_RUNNING:

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

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if (error.get_dbus_name()

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

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logger.info("Local Zeroconf service name"

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" 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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self.add()

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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):

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

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def rename(self):

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

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

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syslogger.setFormatter(logging.Formatter(

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

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.format(self.name)))

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ret = AvahiService.rename(self)

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syslogger.setFormatter(logging.Formatter

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

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

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.format(self.name)))

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return ret

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def call_pipe(connection, # : multiprocessing.Connection

438

func, *args, **kwargs):

439

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

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

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return value on the provided multiprocessing.Connection.

443

"""

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

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connection.close()

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def timedelta_to_milliseconds(td):

404

"Convert a datetime.timedelta() to milliseconds"

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

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+ (td.seconds * 1000)

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+ (td.microseconds // 1000))

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class Client(object):

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

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last_checker_status: integer between 0 and 255 reflecting exit

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status of last checker. -1 reflects crashed

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checker, -2 means no checker completed yet.

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last_checker_signal: The signal which killed the last checker, if

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last_checker_status is -1

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

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442

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")

498

client_defaults = {

499

"timeout": "PT5M",

500

"extended_timeout": "PT15M",

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"interval": "PT2M",

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

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"host": "",

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"approval_delay": "PT0S",

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"approval_duration": "PT1S",

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"approved_by_default": "True",

507

"enabled": "True",

508

}

459

client_defaults = { "timeout": "PT5M",

460

"extended_timeout": "PT15M",

461

"interval": "PT2M",

462

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

463

"host": "",

464

"approval_delay": "PT0S",

465

"approval_duration": "PT1S",

466

"approved_by_default": "True",

467

"enabled": "True",

468

}

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470

def timeout_milliseconds(self):

471

"Return the 'timeout' attribute in milliseconds"

472

return timedelta_to_milliseconds(self.timeout)

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474

def extended_timeout_milliseconds(self):

475

"Return the 'extended_timeout' attribute in milliseconds"

476

return timedelta_to_milliseconds(self.extended_timeout)

477

478

def interval_milliseconds(self):

479

"Return the 'interval' attribute in milliseconds"

480

return timedelta_to_milliseconds(self.interval)

481

482

def approval_delay_milliseconds(self):

483

return timedelta_to_milliseconds(self.approval_delay)

509

484

510

485

@staticmethod

511

486

def config_parser(config):

527

502

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

528

503

"enabled")

529

504

530

# Uppercase and remove spaces from fingerprint for later

531

# comparison purposes with return value from the

532

# fingerprint() function

533

505

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

534

506

.replace(" ", ""))

535

507

if "secret" in section:

540

512

"rb") as secfile:

541

513

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

542

514

else:

543

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

515

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

544

516

.format(section))

545

517

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

546

518

client["extended_timeout"] = string_to_delta(

563

535

server_settings = {}

564

536

self.server_settings = server_settings

565

537

# adding all client settings

566

for setting, value in settings.items():

538

for setting, value in settings.iteritems():

567

539

setattr(self, setting, value)

568

540

569

541

if self.enabled:

577

549

self.expires = None

578

550

579

551

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

552

# Uppercase and remove spaces from fingerprint for later

553

# comparison purposes with return value from the fingerprint()

554

# function

580

555

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

581

556

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

582

557

datetime.datetime.utcnow())

589

564

self.current_checker_command = None

590

565

self.approved = None

591

566

self.approvals_pending = 0

592

self.changedstate = multiprocessing_manager.Condition(

593

multiprocessing_manager.Lock())

594

self.client_structure = [attr

595

for attr in self.__dict__.iterkeys()

567

self.changedstate = (multiprocessing_manager

568

.Condition(multiprocessing_manager

569

.Lock()))

570

self.client_structure = [attr for attr in

571

self.__dict__.iterkeys()

596

572

if not attr.startswith("_")]

597

573

self.client_structure.append("client_structure")

598

574

599

for name, t in inspect.getmembers(

600

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

575

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

576

lambda obj:

577

isinstance(obj,

578

property)):

601

579

if not name.startswith("_"):

602

580

self.client_structure.append(name)

603

581

645

623

# and every interval from then on.

646

624

if self.checker_initiator_tag is not None:

647

625

gobject.source_remove(self.checker_initiator_tag)

648

self.checker_initiator_tag = gobject.timeout_add(

649

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

650

self.start_checker)

626

self.checker_initiator_tag = (gobject.timeout_add

627

(self.interval_milliseconds(),

628

self.start_checker))

651

629

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

652

630

if self.disable_initiator_tag is not None:

653

631

gobject.source_remove(self.disable_initiator_tag)

654

self.disable_initiator_tag = gobject.timeout_add(

655

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

632

self.disable_initiator_tag = (gobject.timeout_add

633

(self.timeout_milliseconds(),

634

self.disable))

656

635

# Also start a new checker *right now*.

657

636

self.start_checker()

658

637

659

def checker_callback(self, source, condition, connection,

660

command):

638

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

661

639

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

662

640

self.checker_callback_tag = None

663

641

self.checker = None

664

# Read return code from connection (see call_pipe)

665

returncode = connection.recv()

666

connection.close()

667

668

if returncode >= 0:

669

self.last_checker_status = returncode

670

self.last_checker_signal = None

642

if os.WIFEXITED(condition):

643

self.last_checker_status = os.WEXITSTATUS(condition)

671

644

if self.last_checker_status == 0:

672

645

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

673

646

vars(self))

674

647

self.checked_ok()

675

648

else:

676

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

649

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

650

vars(self))

677

651

else:

678

652

self.last_checker_status = -1

679

self.last_checker_signal = -returncode

680

653

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

681

654

vars(self))

682

return False

683

655

684

656

def checked_ok(self):

685

657

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

686

658

self.last_checked_ok = datetime.datetime.utcnow()

687

659

self.last_checker_status = 0

688

self.last_checker_signal = None

689

660

self.bump_timeout()

690

661

691

662

def bump_timeout(self, timeout=None):

696

667

gobject.source_remove(self.disable_initiator_tag)

697

668

self.disable_initiator_tag = None

698

669

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

699

self.disable_initiator_tag = gobject.timeout_add(

700

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

670

self.disable_initiator_tag = (gobject.timeout_add

671

(timedelta_to_milliseconds

672

(timeout), self.disable))

701

673

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

702

674

703

675

def need_approval(self):

717

689

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

718

690

# should be.

719

691

720

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

721

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

722

self.checker.join()

723

self.checker = None

692

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

693

try:

694

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

695

except AttributeError:

696

pass

697

except OSError as error:

698

if error.errno != errno.ECHILD:

699

raise

700

else:

701

if pid:

702

logger.warning("Checker was a zombie")

703

gobject.source_remove(self.checker_callback_tag)

704

self.checker_callback(pid, status,

705

self.current_checker_command)

724

706

# Start a new checker if needed

725

707

if self.checker is None:

726

708

# Escape attributes for the shell

727

escaped_attrs = {

728

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

729

for attr in self.runtime_expansions }

709

escaped_attrs = dict(

710

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

711

for attr in

712

self.runtime_expansions)

730

713

try:

731

714

command = self.checker_command % escaped_attrs

732

715

except TypeError as error:

733

716

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

734

self.checker_command,

717

self.checker_command, exc_info=error)

718

return True # Try again later

719

self.current_checker_command = command

720

try:

721

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

722

command, self.name)

723

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

724

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

725

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

726

# always replaced by /dev/null.)

727

# The exception is when not debugging but nevertheless

728

# running in the foreground; use the previously

729

# created wnull.

730

popen_args = {}

731

if (not self.server_settings["debug"]

732

and self.server_settings["foreground"]):

733

popen_args.update({"stdout": wnull,

734

"stderr": wnull })

735

self.checker = subprocess.Popen(command,

736

close_fds=True,

737

shell=True, cwd="/",

738

**popen_args)

739

except OSError as error:

740

logger.error("Failed to start subprocess",

735

741

exc_info=error)

736

return True # Try again later

737

self.current_checker_command = command

738

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

739

self.name)

740

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

741

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

742

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

743

# always replaced by /dev/null.)

744

# The exception is when not debugging but nevertheless

745

# running in the foreground; use the previously

746

# created wnull.

747

popen_args = { "close_fds": True,

748

"shell": True,

749

"cwd": "/" }

750

if (not self.server_settings["debug"]

751

and self.server_settings["foreground"]):

752

popen_args.update({"stdout": wnull,

753

"stderr": wnull })

754

pipe = multiprocessing.Pipe(duplex = False)

755

self.checker = multiprocessing.Process(

756

target = call_pipe,

757

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

758

kwargs = popen_args)

759

self.checker.start()

760

self.checker_callback_tag = gobject.io_add_watch(

761

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

762

self.checker_callback, pipe[0], command)

742

return True

743

self.checker_callback_tag = (gobject.child_watch_add

744

(self.checker.pid,

745

self.checker_callback,

746

data=command))

747

# The checker may have completed before the gobject

748

# watch was added. Check for this.

749

try:

750

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

751

except OSError as error:

752

if error.errno == errno.ECHILD:

753

# This should never happen

754

logger.error("Child process vanished",

755

exc_info=error)

756

return True

757

raise

758

if pid:

759

gobject.source_remove(self.checker_callback_tag)

760

self.checker_callback(pid, status, command)

763

761

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

764

762

return True

765

763

771

769

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

772

770

return

773

771

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

774

self.checker.terminate()

772

try:

773

self.checker.terminate()

774

#time.sleep(0.5)

775

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

776

# self.checker.kill()

777

except OSError as error:

778

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

779

raise

775

780

self.checker = None

776

781

777

782

778

def dbus_service_property(dbus_interface,

779

signature="v",

780

access="readwrite",

781

byte_arrays=False):

783

def dbus_service_property(dbus_interface, signature="v",

784

access="readwrite", byte_arrays=False):

782

785

"""Decorators for marking methods of a DBusObjectWithProperties to

783

786

become properties on the D-Bus.

784

787

793

796

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

794

797

if byte_arrays and signature != "ay":

795

798

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

796

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

797

799

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

798

800

def decorator(func):

799

801

func._dbus_is_property = True

800

802

func._dbus_interface = dbus_interface

805

807

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

806

808

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

807

809

return func

808

809

810

return decorator

810

811

812

820

821

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

821

822

"false"}

822

823

"""

823

824

def decorator(func):

825

func._dbus_is_interface = True

826

func._dbus_interface = dbus_interface

827

func._dbus_name = dbus_interface

828

return func

829

830

829

return decorator

831

830

832

831

834

833

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

835

834

Usage:

836

835

837

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

838

"org.freedesktop.DBus.Property."

839

"EmitsChangedSignal": "false"})

840

836

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

841

837

access="r")

838

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

839

"org.freedesktop.DBus.Property."

840

"EmitsChangedSignal": "false"})

842

841

def Property_dbus_property(self):

843

842

return dbus.Boolean(False)

844

845

See also the DBusObjectWithAnnotations class.

846

843

"""

847

848

844

def decorator(func):

849

845

func._dbus_annotations = annotations

850

846

return func

851

852

847

return decorator

853

848

854

849

855

850

class DBusPropertyException(dbus.exceptions.DBusException):

856

851

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

857

852

"""

858

pass

853

def __unicode__(self):

854

return unicode(str(self))

859

855

860

856

861

857

class DBusPropertyAccessException(DBusPropertyException):

870

866

pass

871

867

872

868

873

class DBusObjectWithAnnotations(dbus.service.Object):

874

"""A D-Bus object with annotations.

869

class DBusObjectWithProperties(dbus.service.Object):

870

"""A D-Bus object with properties.

875

871

876

Classes inheriting from this can use the dbus_annotations

877

decorator to add annotations to methods or signals.

872

Classes inheriting from this can use the dbus_service_property

873

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

874

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

878

875

"""

879

876

880

877

@staticmethod

884

881

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

885

882

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

886

883

"""

887

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

884

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

888

885

False)

889

886

890

887

def _get_all_dbus_things(self, thing):

891

888

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

892

889

"""

893

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

890

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

891

name),

894

892

athing.__get__(self))

895

893

for cls in self.__class__.__mro__

896

894

for name, athing in

897

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

898

899

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

900

out_signature = "s",

901

path_keyword = 'object_path',

902

connection_keyword = 'connection')

903

def Introspect(self, object_path, connection):

904

"""Overloading of standard D-Bus method.

905

906

Inserts annotation tags on methods and signals.

907

"""

908

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

909

connection)

910

try:

911

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

912

913

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

914

# Add annotation tags

915

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

916

for tag in if_tag.getElementsByTagName(typ):

917

annots = dict()

918

for name, prop in (self.

919

_get_all_dbus_things(typ)):

920

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

921

and prop._dbus_interface

922

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

923

annots.update(getattr(

924

prop, "_dbus_annotations", {}))

925

for name, value in annots.items():

926

ann_tag = document.createElement(

927

"annotation")

928

ann_tag.setAttribute("name", name)

929

ann_tag.setAttribute("value", value)

930

tag.appendChild(ann_tag)

931

# Add interface annotation tags

932

for annotation, value in dict(

933

itertools.chain.from_iterable(

934

annotations().items()

935

for name, annotations

936

in self._get_all_dbus_things("interface")

937

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

938

)).items():

939

ann_tag = document.createElement("annotation")

940

ann_tag.setAttribute("name", annotation)

941

ann_tag.setAttribute("value", value)

942

if_tag.appendChild(ann_tag)

943

# Fix argument name for the Introspect method itself

944

if (if_tag.getAttribute("name")

945

== dbus.INTROSPECTABLE_IFACE):

946

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

947

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

948

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

949

if (arg.getAttribute("direction")

950

== "out"):

951

arg.setAttribute("name",

952

"xml_data")

953

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

954

document.unlink()

955

except (AttributeError, xml.dom.DOMException,

956

xml.parsers.expat.ExpatError) as error:

957

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

958

exc_info=error)

959

return xmlstring

960

961

962

class DBusObjectWithProperties(DBusObjectWithAnnotations):

963

"""A D-Bus object with properties.

964

965

Classes inheriting from this can use the dbus_service_property

966

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

967

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

968

"""

895

inspect.getmembers(cls,

896

self._is_dbus_thing(thing)))

969

897

970

898

def _get_dbus_property(self, interface_name, property_name):

971

899

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

972

900

property with the specified name and interface.

973

901

"""

974

for cls in self.__class__.__mro__:

975

for name, value in inspect.getmembers(

976

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

902

for cls in self.__class__.__mro__:

903

for name, value in (inspect.getmembers

904

(cls,

905

self._is_dbus_thing("property"))):

977

906

if (value._dbus_name == property_name

978

907

and value._dbus_interface == interface_name):

979

908

return value.__get__(self)

980

909

981

910

# No such property

982

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

983

self.dbus_object_path, interface_name, property_name))

984

985

@classmethod

986

def _get_all_interface_names(cls):

987

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

988

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

989

"_dbus_interface", None)

990

for x in (inspect.getmro(cls))

991

for attr in dir(x))

992

if name is not None)

993

994

@dbus.service.method(dbus.PROPERTIES_IFACE,

995

in_signature="ss",

911

raise DBusPropertyNotFound(self.dbus_object_path + ":"

912

+ interface_name + "."

913

+ property_name)

914

915

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

996

916

out_signature="v")

997

917

def Get(self, interface_name, property_name):

998

918

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

1017

937

# signatures other than "ay".

1018

938

if prop._dbus_signature != "ay":

1019

939

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

1020

"'ay' signature {!r}"

940

"'ay' signature {0!r}"

1021

941

.format(prop._dbus_signature))

1022

942

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

1023

943

for byte in value))

1024

944

prop(value)

1025

945

1026

@dbus.service.method(dbus.PROPERTIES_IFACE,

1027

in_signature="s",

946

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

1028

947

out_signature="a{sv}")

1029

948

def GetAll(self, interface_name):

1030

949

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

1045

964

if not hasattr(value, "variant_level"):

1046

965

properties[name] = value

1047

966

continue

1048

properties[name] = type(value)(

1049

value, variant_level = value.variant_level + 1)

967

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

968

value.variant_level+1)

1050

969

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

1051

970

1052

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

1053

def PropertiesChanged(self, interface_name, changed_properties,

1054

invalidated_properties):

1055

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

1056

standard.

1057

"""

1058

pass

1059

1060

971

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1061

972

out_signature="s",

1062

973

path_keyword='object_path',

1066

977

1067

978

Inserts property tags and interface annotation tags.

1068

979

"""

1069

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1070

object_path,

1071

connection)

980

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

981

connection)

1072

982

try:

1073

983

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

1074

1075

984

def make_tag(document, name, prop):

1076

985

e = document.createElement("property")

1077

986

e.setAttribute("name", name)

1078

987

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

1079

988

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

1080

989

return e

1081

1082

990

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

1083

991

# Add property tags

1084

992

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

1087

995

if prop._dbus_interface

1088

996

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

1089

997

if_tag.appendChild(tag)

1090

# Add annotation tags for properties

1091

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

1092

annots = dict()

1093

for name, prop in self._get_all_dbus_things(

1094

"property"):

1095

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

1096

and prop._dbus_interface

1097

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

1098

annots.update(getattr(

1099

prop, "_dbus_annotations", {}))

1100

for name, value in annots.items():

1101

ann_tag = document.createElement(

1102

"annotation")

1103

ann_tag.setAttribute("name", name)

1104

ann_tag.setAttribute("value", value)

1105

tag.appendChild(ann_tag)

998

# Add annotation tags

999

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

1000

for tag in if_tag.getElementsByTagName(typ):

1001

annots = dict()

1002

for name, prop in (self.

1003

_get_all_dbus_things(typ)):

1004

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

1005

and prop._dbus_interface

1006

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

1007

annots.update(getattr

1008

(prop,

1009

"_dbus_annotations",

1010

{}))

1011

for name, value in annots.iteritems():

1012

ann_tag = document.createElement(

1013

"annotation")

1014

ann_tag.setAttribute("name", name)

1015

ann_tag.setAttribute("value", value)

1016

tag.appendChild(ann_tag)

1017

# Add interface annotation tags

1018

for annotation, value in dict(

1019

itertools.chain.from_iterable(

1020

annotations().iteritems()

1021

for name, annotations in

1022

self._get_all_dbus_things("interface")

1023

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

1024

)).iteritems():

1025

ann_tag = document.createElement("annotation")

1026

ann_tag.setAttribute("name", annotation)

1027

ann_tag.setAttribute("value", value)

1028

if_tag.appendChild(ann_tag)

1106

1029

# Add the names to the return values for the

1107

1030

# "org.freedesktop.DBus.Properties" methods

1108

1031

if (if_tag.getAttribute("name")

1126

1049

exc_info=error)

1127

1050

return xmlstring

1128

1051

1129

try:

1130

dbus.OBJECT_MANAGER_IFACE

1131

except AttributeError:

1132

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

1133

1134

class DBusObjectWithObjectManager(DBusObjectWithAnnotations):

1135

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

1136

1137

Classes inheriting from this exposes the standard

1138

GetManagedObjects call and the InterfacesAdded and

1139

InterfacesRemoved signals on the standard

1140

"org.freedesktop.DBus.ObjectManager" interface.

1141

1142

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

1143

manually.

1144

"""

1145

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

1146

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

1147

def GetManagedObjects(self):

1148

"""This function must be overridden"""

1149

raise NotImplementedError()

1150

1151

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,

1152

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

1153

def InterfacesAdded(self, object_path, interfaces_and_properties):

1154

pass

1155

1156

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

1157

def InterfacesRemoved(self, object_path, interfaces):

1158

pass

1159

1160

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1161

out_signature = "s",

1162

path_keyword = 'object_path',

1163

connection_keyword = 'connection')

1164

def Introspect(self, object_path, connection):

1165

"""Overloading of standard D-Bus method.

1166

1167

Override return argument name of GetManagedObjects to be

1168

"objpath_interfaces_and_properties"

1169

"""

1170

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1171

object_path,

1172

connection)

1173

try:

1174

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

1175

1176

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

1177

# Fix argument name for the GetManagedObjects method

1178

if (if_tag.getAttribute("name")

1179

== dbus.OBJECT_MANAGER_IFACE):

1180

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

1181

if (cn.getAttribute("name")

1182

== "GetManagedObjects"):

1183

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

1184

if (arg.getAttribute("direction")

1185

== "out"):

1186

arg.setAttribute(

1187

"name",

1188

"objpath_interfaces"

1189

"_and_properties")

1190

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

1191

document.unlink()

1192

except (AttributeError, xml.dom.DOMException,

1193

xml.parsers.expat.ExpatError) as error:

1194

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

1195

exc_info = error)

1196

return xmlstring

1197

1052

1198

1053

def datetime_to_dbus(dt, variant_level=0):

1199

1054

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

1200

1055

if dt is None:

1201

1056

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

1202

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

1057

return dbus.String(dt.isoformat(),

1058

variant_level=variant_level)

1203

1059

1204

1060

1205

1061

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1225

1081

(from DBusObjectWithProperties) and interfaces (from the

1226

1082

dbus_interface_annotations decorator).

1227

1083

"""

1228

1229

1084

def wrapper(cls):

1230

1085

for orig_interface_name, alt_interface_name in (

1231

alt_interface_names.items()):

1086

alt_interface_names.iteritems()):

1232

1087

attr = {}

1233

1088

interface_names = set()

1234

1089

# Go though all attributes of the class

1236

1091

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

1237

1092

# with the wrong interface name

1238

1093

if (not hasattr(attribute, "_dbus_interface")

1239

or not attribute._dbus_interface.startswith(

1240

orig_interface_name)):

1094

or not attribute._dbus_interface

1095

.startswith(orig_interface_name)):

1241

1096

continue

1242

1097

# Create an alternate D-Bus interface name based on

1243

1098

# the current name

1244

alt_interface = attribute._dbus_interface.replace(

1245

orig_interface_name, alt_interface_name)

1099

alt_interface = (attribute._dbus_interface

1100

.replace(orig_interface_name,

1101

alt_interface_name))

1246

1102

interface_names.add(alt_interface)

1247

1103

# Is this a D-Bus signal?

1248

1104

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

1249

if sys.version_info.major == 2:

1250

# Extract the original non-method undecorated

1251

# function by black magic

1252

nonmethod_func = (dict(

1105

# Extract the original non-method undecorated

1106

# function by black magic

1107

nonmethod_func = (dict(

1253

1108

zip(attribute.func_code.co_freevars,

1254

attribute.__closure__))

1255

["func"].cell_contents)

1256

else:

1257

nonmethod_func = attribute

1109

attribute.__closure__))["func"]

1110

.cell_contents)

1258

1111

# Create a new, but exactly alike, function

1259

1112

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

1260

1113

# with the alternate D-Bus interface name

1261

if sys.version_info.major == 2:

1262

new_function = types.FunctionType(

1263

nonmethod_func.func_code,

1264

nonmethod_func.func_globals,

1265

nonmethod_func.func_name,

1266

nonmethod_func.func_defaults,

1267

nonmethod_func.func_closure)

1268

else:

1269

new_function = types.FunctionType(

1270

nonmethod_func.__code__,

1271

nonmethod_func.__globals__,

1272

nonmethod_func.__name__,

1273

nonmethod_func.__defaults__,

1274

nonmethod_func.__closure__)

1275

new_function = (dbus.service.signal(

1276

alt_interface,

1277

attribute._dbus_signature)(new_function))

1114

new_function = (dbus.service.signal

1115

(alt_interface,

1116

attribute._dbus_signature)

1117

(types.FunctionType(

1118

nonmethod_func.func_code,

1119

nonmethod_func.func_globals,

1120

nonmethod_func.func_name,

1121

nonmethod_func.func_defaults,

1122

nonmethod_func.func_closure)))

1278

1123

# Copy annotations, if any

1279

1124

try:

1280

new_function._dbus_annotations = dict(

1281

attribute._dbus_annotations)

1125

new_function._dbus_annotations = (

1126

dict(attribute._dbus_annotations))

1282

1127

except AttributeError:

1283

1128

pass

1284

1129

# Define a creator of a function to call both the

1289

1134

"""This function is a scope container to pass

1290

1135

func1 and func2 to the "call_both" function

1291

1136

outside of its arguments"""

1292

1293

@functools.wraps(func2)

1294

1137

def call_both(*args, **kwargs):

1295

1138

"""This function will emit two D-Bus

1296

1139

signals by calling func1 and func2"""

1297

1140

func1(*args, **kwargs)

1298

1141

func2(*args, **kwargs)

1299

# Make wrapper function look like a D-Bus signal

1300

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

1301

if name.startswith("_dbus_"):

1302

setattr(call_both, name, attr)

1303

1304

1142

return call_both

1305

1143

# Create the "call_both" function and add it to

1306

1144

# the class

1311

1149

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

1312

1150

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

1313

1151

# to the class.

1314

attr[attrname] = (

1315

dbus.service.method(

1316

alt_interface,

1317

attribute._dbus_in_signature,

1318

attribute._dbus_out_signature)

1319

(types.FunctionType(attribute.func_code,

1320

attribute.func_globals,

1321

attribute.func_name,

1322

attribute.func_defaults,

1323

attribute.func_closure)))

1152

attr[attrname] = (dbus.service.method

1153

(alt_interface,

1154

attribute._dbus_in_signature,

1155

attribute._dbus_out_signature)

1156

(types.FunctionType

1157

(attribute.func_code,

1158

attribute.func_globals,

1159

attribute.func_name,

1160

attribute.func_defaults,

1161

attribute.func_closure)))

1324

1162

# Copy annotations, if any

1325

1163

try:

1326

attr[attrname]._dbus_annotations = dict(

1327

attribute._dbus_annotations)

1164

attr[attrname]._dbus_annotations = (

1165

dict(attribute._dbus_annotations))

1328

1166

except AttributeError:

1329

1167

pass

1330

1168

# Is this a D-Bus property?

1333

1171

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

1334

1172

# property with the alternate D-Bus interface

1335

1173

# name. Add it to the class.

1336

attr[attrname] = (dbus_service_property(

1337

alt_interface, attribute._dbus_signature,

1338

attribute._dbus_access,

1339

attribute._dbus_get_args_options

1340

["byte_arrays"])

1341

(types.FunctionType(

1342

attribute.func_code,

1343

attribute.func_globals,

1344

attribute.func_name,

1345

attribute.func_defaults,

1346

attribute.func_closure)))

1174

attr[attrname] = (dbus_service_property

1175

(alt_interface,

1176

attribute._dbus_signature,

1177

attribute._dbus_access,

1178

attribute

1179

._dbus_get_args_options

1180

["byte_arrays"])

1181

(types.FunctionType

1182

(attribute.func_code,

1183

attribute.func_globals,

1184

attribute.func_name,

1185

attribute.func_defaults,

1186

attribute.func_closure)))

1347

1187

# Copy annotations, if any

1348

1188

try:

1349

attr[attrname]._dbus_annotations = dict(

1350

attribute._dbus_annotations)

1189

attr[attrname]._dbus_annotations = (

1190

dict(attribute._dbus_annotations))

1351

1191

except AttributeError:

1352

1192

pass

1353

1193

# Is this a D-Bus interface?

1356

1196

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

1357

1197

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

1358

1198

# to the class.

1359

attr[attrname] = (

1360

dbus_interface_annotations(alt_interface)

1361

(types.FunctionType(attribute.func_code,

1362

attribute.func_globals,

1363

attribute.func_name,

1364

attribute.func_defaults,

1365

attribute.func_closure)))

1199

attr[attrname] = (dbus_interface_annotations

1200

(alt_interface)

1201

(types.FunctionType

1202

(attribute.func_code,

1203

attribute.func_globals,

1204

attribute.func_name,

1205

attribute.func_defaults,

1206

attribute.func_closure)))

1366

1207

if deprecate:

1367

1208

# Deprecate all alternate interfaces

1368

iname="_AlternateDBusNames_interface_annotation{}"

1209

iname="_AlternateDBusNames_interface_annotation{0}"

1369

1210

for interface_name in interface_names:

1370

1371

1211

@dbus_interface_annotations(interface_name)

1372

1212

def func(self):

1373

1213

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

1374

"true" }

1214

"true" }

1375

1215

# Find an unused name

1376

1216

for aname in (iname.format(i)

1377

1217

for i in itertools.count()):

1381

1221

if interface_names:

1382

1222

# Replace the class with a new subclass of it with

1383

1223

# methods, signals, etc. as created above.

1384

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

1385

(cls, ), attr)

1224

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

1225

(cls,), attr)

1386

1226

return cls

1387

1388

1227

return wrapper

1389

1228

1390

1229

1391

1230

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

1392

"se.bsnet.fukt.Mandos"})

1231

"se.bsnet.fukt.Mandos"})

1393

1232

class ClientDBus(Client, DBusObjectWithProperties):

1394

1233

"""A Client class using D-Bus

1395

1234

1399

1238

"""

1400

1239

1401

1240

runtime_expansions = (Client.runtime_expansions

1402

+ ("dbus_object_path", ))

1403

1404

_interface = "se.recompile.Mandos.Client"

1241

+ ("dbus_object_path",))

1405

1242

1406

1243

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

1407

1244

1410

1247

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

1411

1248

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

1412

1249

# the D-Bus

1413

client_object_name = str(self.name).translate(

1250

client_object_name = unicode(self.name).translate(

1414

1251

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

1415

1252

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

1416

self.dbus_object_path = dbus.ObjectPath(

1417

"/clients/" + client_object_name)

1253

self.dbus_object_path = (dbus.ObjectPath

1254

("/clients/" + client_object_name))

1418

1255

DBusObjectWithProperties.__init__(self, self.bus,

1419

1256

self.dbus_object_path)

1420

1257

1421

def notifychangeproperty(transform_func, dbus_name,

1422

type_func=lambda x: x,

1423

variant_level=1,

1424

invalidate_only=False,

1425

_interface=_interface):

1258

def notifychangeproperty(transform_func,

1259

dbus_name, type_func=lambda x: x,

1260

variant_level=1):

1426

1261

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

1427

1262

its changes to DBus.

1428

1263

1433

1268

to the D-Bus. Default: no transform

1434

1269

variant_level: D-Bus variant level. Default: 1

1435

1270

"""

1436

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

1437

1271

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

1438

1272

def setter(self, value):

1439

1273

if hasattr(self, "dbus_object_path"):

1440

1274

if (not hasattr(self, attrname) or

1441

1275

type_func(getattr(self, attrname, None))

1442

1276

!= type_func(value)):

1443

if invalidate_only:

1444

self.PropertiesChanged(

1445

_interface, dbus.Dictionary(),

1446

dbus.Array((dbus_name, )))

1447

else:

1448

dbus_value = transform_func(

1449

type_func(value),

1450

variant_level = variant_level)

1451

self.PropertyChanged(dbus.String(dbus_name),

1452

dbus_value)

1453

self.PropertiesChanged(

1454

_interface,

1455

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

1456

dbus_value }),

1457

dbus.Array())

1277

dbus_value = transform_func(type_func(value),

1278

variant_level

1279

=variant_level)

1280

self.PropertyChanged(dbus.String(dbus_name),

1281

dbus_value)

1458

1282

setattr(self, attrname, value)

1459

1283

1460

1284

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

1466

1290

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

1467

1291

last_enabled = notifychangeproperty(datetime_to_dbus,

1468

1292

"LastEnabled")

1469

checker = notifychangeproperty(

1470

dbus.Boolean, "CheckerRunning",

1471

type_func = lambda checker: checker is not None)

1293

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

1294

type_func = lambda checker:

1295

checker is not None)

1472

1296

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1473

1297

"LastCheckedOK")

1474

1298

last_checker_status = notifychangeproperty(dbus.Int16,

1477

1301

datetime_to_dbus, "LastApprovalRequest")

1478

1302

approved_by_default = notifychangeproperty(dbus.Boolean,

1479

1303

"ApprovedByDefault")

1480

approval_delay = notifychangeproperty(

1481

dbus.UInt64, "ApprovalDelay",

1482

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

1304

approval_delay = notifychangeproperty(dbus.UInt64,

1305

"ApprovalDelay",

1306

type_func =

1307

timedelta_to_milliseconds)

1483

1308

approval_duration = notifychangeproperty(

1484

1309

dbus.UInt64, "ApprovalDuration",

1485

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

1310

type_func = timedelta_to_milliseconds)

1486

1311

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

1487

timeout = notifychangeproperty(

1488

dbus.UInt64, "Timeout",

1489

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

1312

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

1313

type_func =

1314

timedelta_to_milliseconds)

1490

1315

extended_timeout = notifychangeproperty(

1491

1316

dbus.UInt64, "ExtendedTimeout",

1492

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

1493

interval = notifychangeproperty(

1494

dbus.UInt64, "Interval",

1495

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

1317

type_func = timedelta_to_milliseconds)

1318

interval = notifychangeproperty(dbus.UInt64,

1319

"Interval",

1320

type_func =

1321

timedelta_to_milliseconds)

1496

1322

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

1497

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

1498

invalidate_only=True)

1499

1323

1500

1324

del notifychangeproperty

1501

1325

1508

1332

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

1509

1333

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

1510

1334

1511

def checker_callback(self, source, condition,

1512

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

1513

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

1514

connection, command, *args,

1515

**kwargs)

1516

exitstatus = self.last_checker_status

1517

if exitstatus >= 0:

1335

def checker_callback(self, pid, condition, command,

1336

*args, **kwargs):

1337

self.checker_callback_tag = None

1338

self.checker = None

1339

if os.WIFEXITED(condition):

1340

exitstatus = os.WEXITSTATUS(condition)

1518

1341

# Emit D-Bus signal

1519

1342

self.CheckerCompleted(dbus.Int16(exitstatus),

1520

# This is specific to GNU libC

1521

dbus.Int64(exitstatus << 8),

1343

dbus.Int64(condition),

1522

1344

dbus.String(command))

1523

1345

else:

1524

1346

# Emit D-Bus signal

1525

1347

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

1526

dbus.Int64(

1527

# This is specific to GNU libC

1528

(exitstatus << 8)

1529

| self.last_checker_signal),

1348

dbus.Int64(condition),

1530

1349

dbus.String(command))

1531

return ret

1350

1351

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

1352

*args, **kwargs)

1532

1353

1533

1354

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

1534

1355

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

1546

1367

1547

1368

def approve(self, value=True):

1548

1369

self.approved = value

1549

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

1550

* 1000), self._reset_approved)

1370

gobject.timeout_add(timedelta_to_milliseconds

1371

(self.approval_duration),

1372

self._reset_approved)

1551

1373

self.send_changedstate()

1552

1374

1553

1375

## D-Bus methods, signals & properties

1376

_interface = "se.recompile.Mandos.Client"

1554

1377

1555

1378

## Interfaces

1556

1379

1380

@dbus_interface_annotations(_interface)

1381

def _foo(self):

1382

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

1383

"false"}

1384

1557

1385

## Signals

1558

1386

1559

1387

# CheckerCompleted - signal

1569

1397

pass

1570

1398

1571

1399

# PropertyChanged - signal

1572

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

1573

1400

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

1574

1401

def PropertyChanged(self, property, value):

1575

1402

"D-Bus signal"

1609

1436

self.checked_ok()

1610

1437

1611

1438

# Enable - method

1612

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

1613

1439

@dbus.service.method(_interface)

1614

1440

def Enable(self):

1615

1441

"D-Bus method"

1616

1442

self.enable()

1617

1443

1618

1444

# StartChecker - method

1619

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

1620

1445

@dbus.service.method(_interface)

1621

1446

def StartChecker(self):

1622

1447

"D-Bus method"

1623

1448

self.start_checker()

1624

1449

1625

1450

# Disable - method

1626

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

1627

1451

@dbus.service.method(_interface)

1628

1452

def Disable(self):

1629

1453

"D-Bus method"

1630

1454

self.disable()

1631

1455

1632

1456

# StopChecker - method

1633

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

1634

1457

@dbus.service.method(_interface)

1635

1458

def StopChecker(self):

1636

1459

self.stop_checker()

1643

1466

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

1644

1467

1645

1468

# ApprovedByDefault - property

1646

@dbus_service_property(_interface,

1647

signature="b",

1469

@dbus_service_property(_interface, signature="b",

1648

1470

access="readwrite")

1649

1471

def ApprovedByDefault_dbus_property(self, value=None):

1650

1472

if value is None: # get

1652

1474

self.approved_by_default = bool(value)

1653

1475

1654

1476

# ApprovalDelay - property

1655

@dbus_service_property(_interface,

1656

signature="t",

1477

@dbus_service_property(_interface, signature="t",

1657

1478

access="readwrite")

1658

1479

def ApprovalDelay_dbus_property(self, value=None):

1659

1480

if value is None: # get

1660

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

1661

* 1000)

1481

return dbus.UInt64(self.approval_delay_milliseconds())

1662

1482

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

1663

1483

1664

1484

# ApprovalDuration - property

1665

@dbus_service_property(_interface,

1666

signature="t",

1485

@dbus_service_property(_interface, signature="t",

1667

1486

access="readwrite")

1668

1487

def ApprovalDuration_dbus_property(self, value=None):

1669

1488

if value is None: # get

1670

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

1671

* 1000)

1489

return dbus.UInt64(timedelta_to_milliseconds(

1490

self.approval_duration))

1672

1491

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

1673

1492

1674

1493

# Name - property

1675

@dbus_annotations(

1676

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

1677

1494

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

1678

1495

def Name_dbus_property(self):

1679

1496

return dbus.String(self.name)

1680

1497

1681

1498

# Fingerprint - property

1682

@dbus_annotations(

1683

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

1684

1499

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

1685

1500

def Fingerprint_dbus_property(self):

1686

1501

return dbus.String(self.fingerprint)

1687

1502

1688

1503

# Host - property

1689

@dbus_service_property(_interface,

1690

signature="s",

1504

@dbus_service_property(_interface, signature="s",

1691

1505

access="readwrite")

1692

1506

def Host_dbus_property(self, value=None):

1693

1507

if value is None: # get

1694

1508

return dbus.String(self.host)

1695

self.host = str(value)

1509

self.host = unicode(value)

1696

1510

1697

1511

# Created - property

1698

@dbus_annotations(

1699

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

1700

1512

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

1701

1513

def Created_dbus_property(self):

1702

1514

return datetime_to_dbus(self.created)

1707

1519

return datetime_to_dbus(self.last_enabled)

1708

1520

1709

1521

# Enabled - property

1710

@dbus_service_property(_interface,

1711

signature="b",

1522

@dbus_service_property(_interface, signature="b",

1712

1523

access="readwrite")

1713

1524

def Enabled_dbus_property(self, value=None):

1714

1525

if value is None: # get

1719

1530

self.disable()

1720

1531

1721

1532

# LastCheckedOK - property

1722

@dbus_service_property(_interface,

1723

signature="s",

1533

@dbus_service_property(_interface, signature="s",

1724

1534

access="readwrite")

1725

1535

def LastCheckedOK_dbus_property(self, value=None):

1726

1536

if value is not None:

1729

1539

return datetime_to_dbus(self.last_checked_ok)

1730

1540

1731

1541

# LastCheckerStatus - property

1732

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

1542

@dbus_service_property(_interface, signature="n",

1543

access="read")

1733

1544

def LastCheckerStatus_dbus_property(self):

1734

1545

return dbus.Int16(self.last_checker_status)

1735

1546

1744

1555

return datetime_to_dbus(self.last_approval_request)

1745

1556

1746

1557

# Timeout - property

1747

@dbus_service_property(_interface,

1748

signature="t",

1558

@dbus_service_property(_interface, signature="t",

1749

1559

access="readwrite")

1750

1560

def Timeout_dbus_property(self, value=None):

1751

1561

if value is None: # get

1752

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

1562

return dbus.UInt64(self.timeout_milliseconds())

1753

1563

old_timeout = self.timeout

1754

1564

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

1755

1565

# Reschedule disabling

1764

1574

is None):

1765

1575

return

1766

1576

gobject.source_remove(self.disable_initiator_tag)

1767

self.disable_initiator_tag = gobject.timeout_add(

1768

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

1769

self.disable)

1577

self.disable_initiator_tag = (

1578

gobject.timeout_add(

1579

timedelta_to_milliseconds(self.expires - now),

1580

self.disable))

1770

1581

1771

1582

# ExtendedTimeout - property

1772

@dbus_service_property(_interface,

1773

signature="t",

1583

@dbus_service_property(_interface, signature="t",

1774

1584

access="readwrite")

1775

1585

def ExtendedTimeout_dbus_property(self, value=None):

1776

1586

if value is None: # get

1777

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

1778

* 1000)

1587

return dbus.UInt64(self.extended_timeout_milliseconds())

1779

1588

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

1780

1589

1781

1590

# Interval - property

1782

@dbus_service_property(_interface,

1783

signature="t",

1591

@dbus_service_property(_interface, signature="t",

1784

1592

access="readwrite")

1785

1593

def Interval_dbus_property(self, value=None):

1786

1594

if value is None: # get

1787

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

1595

return dbus.UInt64(self.interval_milliseconds())

1788

1596

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

1789

1597

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

1790

1598

return

1791

1599

if self.enabled:

1792

1600

# Reschedule checker run

1793

1601

gobject.source_remove(self.checker_initiator_tag)

1794

self.checker_initiator_tag = gobject.timeout_add(

1795

value, self.start_checker)

1796

self.start_checker() # Start one now, too

1602

self.checker_initiator_tag = (gobject.timeout_add

1603

(value, self.start_checker))

1604

self.start_checker() # Start one now, too

1797

1605

1798

1606

# Checker - property

1799

@dbus_service_property(_interface,

1800

signature="s",

1607

@dbus_service_property(_interface, signature="s",

1801

1608

access="readwrite")

1802

1609

def Checker_dbus_property(self, value=None):

1803

1610

if value is None: # get

1804

1611

return dbus.String(self.checker_command)

1805

self.checker_command = str(value)

1612

self.checker_command = unicode(value)

1806

1613

1807

1614

# CheckerRunning - property

1808

@dbus_service_property(_interface,

1809

signature="b",

1615

@dbus_service_property(_interface, signature="b",

1810

1616

access="readwrite")

1811

1617

def CheckerRunning_dbus_property(self, value=None):

1812

1618

if value is None: # get

1817

1623

self.stop_checker()

1818

1624

1819

1625

# ObjectPath - property

1820

@dbus_annotations(

1821

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

1822

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

1823

1626

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

1824

1627

def ObjectPath_dbus_property(self):

1825

1628

return self.dbus_object_path # is already a dbus.ObjectPath

1826

1629

1827

1630

# Secret = property

1828

@dbus_annotations(

1829

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

1830

"invalidates"})

1831

@dbus_service_property(_interface,

1832

signature="ay",

1833

access="write",

1834

byte_arrays=True)

1631

@dbus_service_property(_interface, signature="ay",

1632

access="write", byte_arrays=True)

1835

1633

def Secret_dbus_property(self, value):

1836

self.secret = bytes(value)

1634

self.secret = str(value)

1837

1635

1838

1636

del _interface

1839

1637

1843

1641

self._pipe = child_pipe

1844

1642

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

1845

1643

if not self._pipe.recv():

1846

raise KeyError(fpr)

1644

raise KeyError()

1847

1645

1848

1646

def __getattribute__(self, name):

1849

1647

if name == '_pipe':

1853

1651

if data[0] == 'data':

1854

1652

return data[1]

1855

1653

if data[0] == 'function':

1856

1857

1654

def func(*args, **kwargs):

1858

1655

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

1859

1656

return self._pipe.recv()[1]

1860

1861

1657

return func

1862

1658

1863

1659

def __setattr__(self, name, value):

1875

1671

def handle(self):

1876

1672

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

1877

1673

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

1878

str(self.client_address))

1674

unicode(self.client_address))

1879

1675

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

1880

1676

self.server.child_pipe.fileno())

1881

1677

1882

session = gnutls.connection.ClientSession(

1883

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

1678

session = (gnutls.connection

1679

.ClientSession(self.request,

1680

gnutls.connection

1681

.X509Credentials()))

1884

1682

1885

1683

# Note: gnutls.connection.X509Credentials is really a

1886

1684

# generic GnuTLS certificate credentials object so long as

1895

1693

priority = self.server.gnutls_priority

1896

1694

if priority is None:

1897

1695

priority = "NORMAL"

1898

gnutls.library.functions.gnutls_priority_set_direct(

1899

session._c_object, priority, None)

1696

(gnutls.library.functions

1697

.gnutls_priority_set_direct(session._c_object,

1698

priority, None))

1900

1699

1901

1700

# Start communication using the Mandos protocol

1902

1701

# Get protocol number

1922

1721

approval_required = False

1923

1722

try:

1924

1723

try:

1925

fpr = self.fingerprint(

1926

self.peer_certificate(session))

1724

fpr = self.fingerprint(self.peer_certificate

1725

(session))

1927

1726

except (TypeError,

1928

1727

gnutls.errors.GNUTLSError) as error:

1929

1728

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

1944

1743

while True:

1945

1744

if not client.enabled:

1946

1745

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

1947

client.name)

1746

client.name)

1948

1747

if self.server.use_dbus:

1949

1748

# Emit D-Bus signal

1950

1749

client.Rejected("Disabled")

1959

1758

if self.server.use_dbus:

1960

1759

# Emit D-Bus signal

1961

1760

client.NeedApproval(

1962

client.approval_delay.total_seconds()

1963

* 1000, client.approved_by_default)

1761

client.approval_delay_milliseconds(),

1762

client.approved_by_default)

1964

1763

else:

1965

1764

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

1966

1765

client.name)

1972

1771

#wait until timeout or approved

1973

1772

time = datetime.datetime.now()

1974

1773

client.changedstate.acquire()

1975

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

1774

client.changedstate.wait(

1775

float(timedelta_to_milliseconds(delay)

1776

/ 1000))

1976

1777

client.changedstate.release()

1977

1778

time2 = datetime.datetime.now()

1978

1779

if (time2 - time) >= delay:

1997

1798

logger.warning("gnutls send failed",

1998

1799

exc_info=error)

1999

1800

return

2000

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

2001

len(client.secret) - (sent_size

2002

+ sent))

1801

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

1802

sent, len(client.secret)

1803

- (sent_size + sent))

2003

1804

sent_size += sent

2004

1805

2005

1806

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

2022

1823

def peer_certificate(session):

2023

1824

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

2024

1825

# If not an OpenPGP certificate...

2025

if (gnutls.library.functions.gnutls_certificate_type_get(

2026

session._c_object)

1826

if (gnutls.library.functions

1827

.gnutls_certificate_type_get(session._c_object)

2027

1828

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

2028

1829

# ...do the normal thing

2029

1830

return session.peer_certificate

2043

1844

def fingerprint(openpgp):

2044

1845

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

2045

1846

# New GnuTLS "datum" with the OpenPGP public key

2046

datum = gnutls.library.types.gnutls_datum_t(

2047

ctypes.cast(ctypes.c_char_p(openpgp),

2048

ctypes.POINTER(ctypes.c_ubyte)),

2049

ctypes.c_uint(len(openpgp)))

1847

datum = (gnutls.library.types

1848

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

1849

ctypes.POINTER

1850

(ctypes.c_ubyte)),

1851

ctypes.c_uint(len(openpgp))))

2050

1852

# New empty GnuTLS certificate

2051

1853

crt = gnutls.library.types.gnutls_openpgp_crt_t()

2052

gnutls.library.functions.gnutls_openpgp_crt_init(

2053

ctypes.byref(crt))

1854

(gnutls.library.functions

1855

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

2054

1856

# Import the OpenPGP public key into the certificate

2055

gnutls.library.functions.gnutls_openpgp_crt_import(

2056

crt, ctypes.byref(datum),

2057

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

1857

(gnutls.library.functions

1858

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

1859

gnutls.library.constants

1860

.GNUTLS_OPENPGP_FMT_RAW))

2058

1861

# Verify the self signature in the key

2059

1862

crtverify = ctypes.c_uint()

2060

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

2061

crt, 0, ctypes.byref(crtverify))

1863

(gnutls.library.functions

1864

.gnutls_openpgp_crt_verify_self(crt, 0,

1865

ctypes.byref(crtverify)))

2062

1866

if crtverify.value != 0:

2063

1867

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

2064

raise gnutls.errors.CertificateSecurityError(

2065

"Verify failed")

1868

raise (gnutls.errors.CertificateSecurityError

1869

("Verify failed"))

2066

1870

# New buffer for the fingerprint

2067

1871

buf = ctypes.create_string_buffer(20)

2068

1872

buf_len = ctypes.c_size_t()

2069

1873

# Get the fingerprint from the certificate into the buffer

2070

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

2071

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

1874

(gnutls.library.functions

1875

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

1876

ctypes.byref(buf_len)))

2072

1877

# Deinit the certificate

2073

1878

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

2074

1879

# Convert the buffer to a Python bytestring

2080

1885

2081

1886

class MultiprocessingMixIn(object):

2082

1887

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

2083

2084

1888

def sub_process_main(self, request, address):

2085

1889

try:

2086

1890

self.finish_request(request, address)

2098

1902

2099

1903

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

2100

1904

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

2101

2102

1905

def process_request(self, request, client_address):

2103

1906

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

2104

1907

2125

1928

interface: None or a network interface name (string)

2126

1929

use_ipv6: Boolean; to use IPv6 or not

2127

1930

"""

2128

2129

1931

def __init__(self, server_address, RequestHandlerClass,

2130

interface=None,

2131

use_ipv6=True,

2132

socketfd=None):

1932

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

2133

1933

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

2134

1934

creating a new one with socket.socket().

2135

1935

"""

2176

1976

self.interface)

2177

1977

else:

2178

1978

try:

2179

self.socket.setsockopt(

2180

socket.SOL_SOCKET, SO_BINDTODEVICE,

2181

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

1979

self.socket.setsockopt(socket.SOL_SOCKET,

1980

SO_BINDTODEVICE,

1981

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

2182

1982

except socket.error as error:

2183

1983

if error.errno == errno.EPERM:

2184

1984

logger.error("No permission to bind to"

2202

2002

self.server_address = (any_address,

2203

2003

self.server_address[1])

2204

2004

elif not self.server_address[1]:

2205

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

2005

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

2006

0)

2206

2007

# if self.interface:

2207

2008

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

2208

2009

# 0, # port

2222

2023

2223

2024

Assumes a gobject.MainLoop event loop.

2224

2025

"""

2225

2226

2026

def __init__(self, server_address, RequestHandlerClass,

2227

interface=None,

2228

use_ipv6=True,

2229

clients=None,

2230

gnutls_priority=None,

2231

use_dbus=True,

2232

socketfd=None):

2027

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

2028

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

2233

2029

self.enabled = False

2234

2030

self.clients = clients

2235

2031

if self.clients is None:

2241

2037

interface = interface,

2242

2038

use_ipv6 = use_ipv6,

2243

2039

socketfd = socketfd)

2244

2245

2040

def server_activate(self):

2246

2041

if self.enabled:

2247

2042

return socketserver.TCPServer.server_activate(self)

2251

2046

2252

2047

def add_pipe(self, parent_pipe, proc):

2253

2048

# Call "handle_ipc" for both data and EOF events

2254

gobject.io_add_watch(

2255

parent_pipe.fileno(),

2256

gobject.IO_IN | gobject.IO_HUP,

2257

functools.partial(self.handle_ipc,

2258

parent_pipe = parent_pipe,

2259

proc = proc))

2049

gobject.io_add_watch(parent_pipe.fileno(),

2050

gobject.IO_IN | gobject.IO_HUP,

2051

functools.partial(self.handle_ipc,

2052

parent_pipe =

2053

parent_pipe,

2054

proc = proc))

2260

2055

2261

def handle_ipc(self, source, condition,

2262

parent_pipe=None,

2263

proc = None,

2264

client_object=None):

2056

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

2057

proc = None, client_object=None):

2265

2058

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

2266

2059

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

2267

2060

# Wait for other process to exit

2290

2083

parent_pipe.send(False)

2291

2084

return False

2292

2085

2293

gobject.io_add_watch(

2294

parent_pipe.fileno(),

2295

gobject.IO_IN | gobject.IO_HUP,

2296

functools.partial(self.handle_ipc,

2297

parent_pipe = parent_pipe,

2298

proc = proc,

2299

client_object = client))

2086

gobject.io_add_watch(parent_pipe.fileno(),

2087

gobject.IO_IN | gobject.IO_HUP,

2088

functools.partial(self.handle_ipc,

2089

parent_pipe =

2090

parent_pipe,

2091

proc = proc,

2092

client_object =

2093

client))

2300

2094

parent_pipe.send(True)

2301

2095

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

2302

2096

# same fileno

2308

2102

2309

2103

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

2310

2104

funcname)(*args,

2311

**kwargs)))

2105

**kwargs)))

2312

2106

2313

2107

if command == 'getattr':

2314

2108

attrname = request[1]

2315

if isinstance(client_object.__getattribute__(attrname),

2316

collections.Callable):

2317

parent_pipe.send(('function', ))

2109

if callable(client_object.__getattribute__(attrname)):

2110

parent_pipe.send(('function',))

2318

2111

else:

2319

parent_pipe.send((

2320

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

2112

parent_pipe.send(('data', client_object

2113

.__getattribute__(attrname)))

2321

2114

2322

2115

if command == 'setattr':

2323

2116

attrname = request[1]

2354

2147

# avoid excessive use of external libraries.

2355

2148

2356

2149

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

2357

Token = collections.namedtuple("Token", (

2358

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

2359

# a "group" containing digits

2360

"value", # datetime.timedelta or None

2361

"followers")) # Tokens valid after this token

2150

Token = collections.namedtuple("Token",

2151

("regexp", # To match token; if

2152

# "value" is not None,

2153

# must have a "group"

2154

# containing digits

2155

"value", # datetime.timedelta or

2156

# None

2157

"followers")) # Tokens valid after

2158

# this token

2362

2159

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

2363

2160

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

2364

2161

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

2365

2162

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

2366

2163

datetime.timedelta(seconds=1),

2367

frozenset((token_end, )))

2164

frozenset((token_end,)))

2368

2165

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

2369

2166

datetime.timedelta(minutes=1),

2370

2167

frozenset((token_second, token_end)))

2386

2183

frozenset((token_month, token_end)))

2387

2184

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

2388

2185

datetime.timedelta(weeks=1),

2389

frozenset((token_end, )))

2186

frozenset((token_end,)))

2390

2187

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

2391

2188

frozenset((token_year, token_month,

2392

2189

token_day, token_time,

2393

token_week)))

2190

token_week))),

2394

2191

# Define starting values

2395

2192

value = datetime.timedelta() # Value so far

2396

2193

found_token = None

2397

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

2194

followers = frozenset(token_duration,) # Following valid tokens

2398

2195

s = duration # String left to parse

2399

2196

# Loop until end token is found

2400

2197

while found_token is not token_end:

2417

2214

break

2418

2215

else:

2419

2216

# No currently valid tokens were found

2420

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

2421

.format(duration))

2217

raise ValueError("Invalid RFC 3339 duration")

2422

2218

# End token found

2423

2219

return value

2424

2220

2448

2244

timevalue = datetime.timedelta(0)

2449

2245

for s in interval.split():

2450

2246

try:

2451

suffix = s[-1]

2247

suffix = unicode(s[-1])

2452

2248

value = int(s[:-1])

2453

2249

if suffix == "d":

2454

2250

delta = datetime.timedelta(value)

2461

2257

elif suffix == "w":

2462

2258

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

2463

2259

else:

2464

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

2260

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

2261

.format(suffix))

2465

2262

except IndexError as e:

2466

2263

raise ValueError(*(e.args))

2467

2264

timevalue += delta

2484

2281

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

2485

2282

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

2486

2283

raise OSError(errno.ENODEV,

2487

"{} not a character device"

2284

"{0} not a character device"

2488

2285

.format(os.devnull))

2489

2286

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

2490

2287

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

2500

2297

2501

2298

parser = argparse.ArgumentParser()

2502

2299

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

2503

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

2300

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

2504

2301

help="show version number and exit")

2505

2302

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

2506

2303

help="Bind to interface IF")

2539

2336

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

2540

2337

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

2541

2338

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

2542

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

2543

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

2544

default=None)

2545

2339

2546

2340

options = parser.parse_args()

2547

2341

2556

2350

"port": "",

2557

2351

"debug": "False",

2558

2352

"priority":

2559

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

2560

":+SIGN-DSA-SHA256",

2353

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

2561

2354

"servicename": "Mandos",

2562

2355

"use_dbus": "True",

2563

2356

"use_ipv6": "True",

2566

2359

"socket": "",

2567

2360

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

2568

2361

"foreground": "False",

2569

"zeroconf": "True",

2570

}

2362

}

2571

2363

2572

2364

# Parse config file for server-global settings

2573

2365

server_config = configparser.SafeConfigParser(server_defaults)

2574

2366

del server_defaults

2575

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

2367

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

2368

"mandos.conf"))

2576

2369

# Convert the SafeConfigParser object to a dict

2577

2370

server_settings = server_config.defaults()

2578

2371

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

2596

2389

# Override the settings from the config file with command line

2597

2390

# options, if set.

2598

2391

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

2599

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

2600

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

2601

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

2392

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

2393

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

2394

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

2602

2395

value = getattr(options, option)

2603

2396

if value is not None:

2604

2397

server_settings[option] = value

2605

2398

del options

2606

2399

# Force all strings to be unicode

2607

2400

for option in server_settings.keys():

2608

if isinstance(server_settings[option], bytes):

2609

server_settings[option] = (server_settings[option]

2610

.decode("utf-8"))

2401

if type(server_settings[option]) is str:

2402

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

2611

2403

# Force all boolean options to be boolean

2612

2404

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

2613

"foreground", "zeroconf"):

2405

"foreground"):

2614

2406

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

2615

2407

# Debug implies foreground

2616

2408

if server_settings["debug"]:

2619

2411

2620

2412

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

2621

2413

2622

if (not server_settings["zeroconf"]

2623

and not (server_settings["port"]

2624

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

2625

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

2626

2627

2414

# For convenience

2628

2415

debug = server_settings["debug"]

2629

2416

debuglevel = server_settings["debuglevel"]

2632

2419

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

2633

2420

stored_state_file)

2634

2421

foreground = server_settings["foreground"]

2635

zeroconf = server_settings["zeroconf"]

2636

2422

2637

2423

if debug:

2638

2424

initlogger(debug, logging.DEBUG)

2644

2430

initlogger(debug, level)

2645

2431

2646

2432

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

2647

syslogger.setFormatter(

2648

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

2649

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

2650

server_settings["servicename"])))

2433

syslogger.setFormatter(logging.Formatter

2434

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

2435

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

2436

.format(server_settings

2437

["servicename"])))

2651

2438

2652

2439

# Parse config file with clients

2653

2440

client_config = configparser.SafeConfigParser(Client

2658

2445

global mandos_dbus_service

2659

2446

mandos_dbus_service = None

2660

2447

2661

socketfd = None

2662

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

2663

socketfd = server_settings["socket"]

2664

tcp_server = MandosServer(

2665

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

2666

ClientHandler,

2667

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

2668

use_ipv6=use_ipv6,

2669

gnutls_priority=server_settings["priority"],

2670

use_dbus=use_dbus,

2671

socketfd=socketfd)

2448

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

2449

server_settings["port"]),

2450

ClientHandler,

2451

interface=(server_settings["interface"]

2452

or None),

2453

use_ipv6=use_ipv6,

2454

gnutls_priority=

2455

server_settings["priority"],

2456

use_dbus=use_dbus,

2457

socketfd=(server_settings["socket"]

2458

or None))

2672

2459

if not foreground:

2673

2460

pidfilename = "/run/mandos.pid"

2674

2461

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

2675

2462

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

2676

2463

pidfile = None

2677

2464

try:

2678

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

2465

pidfile = open(pidfilename, "w")

2679

2466

except IOError as e:

2680

2467

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

2681

2468

exc_info=e)

2708

2495

def debug_gnutls(level, string):

2709

2496

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

2710

2497

2711

gnutls.library.functions.gnutls_global_set_log_function(

2712

debug_gnutls)

2498

(gnutls.library.functions

2499

.gnutls_global_set_log_function(debug_gnutls))

2713

2500

2714

2501

# Redirect stdin so all checkers get /dev/null

2715

2502

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

2735

2522

if use_dbus:

2736

2523

try:

2737

2524

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

2738

bus,

2739

do_not_queue=True)

2740

old_bus_name = dbus.service.BusName(

2741

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

2742

do_not_queue=True)

2743

except dbus.exceptions.DBusException as e:

2525

bus, do_not_queue=True)

2526

old_bus_name = (dbus.service.BusName

2527

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

2528

do_not_queue=True))

2529

except dbus.exceptions.NameExistsException as e:

2744

2530

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

2745

2531

use_dbus = False

2746

2532

server_settings["use_dbus"] = False

2747

2533

tcp_server.use_dbus = False

2748

if zeroconf:

2749

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2750

service = AvahiServiceToSyslog(

2751

name = server_settings["servicename"],

2752

servicetype = "_mandos._tcp",

2753

protocol = protocol,

2754

bus = bus)

2755

if server_settings["interface"]:

2756

service.interface = if_nametoindex(

2757

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

2534

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2535

service = AvahiServiceToSyslog(name =

2536

server_settings["servicename"],

2537

servicetype = "_mandos._tcp",

2538

protocol = protocol, bus = bus)

2539

if server_settings["interface"]:

2540

service.interface = (if_nametoindex

2541

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

2758

2542

2759

2543

global multiprocessing_manager

2760

2544

multiprocessing_manager = multiprocessing.Manager()

2779

2563

if server_settings["restore"]:

2780

2564

try:

2781

2565

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

2782

clients_data, old_client_settings = pickle.load(

2783

stored_state)

2566

clients_data, old_client_settings = (pickle.load

2567

(stored_state))

2784

2568

os.remove(stored_state_path)

2785

2569

except IOError as e:

2786

2570

if e.errno == errno.ENOENT:

2787

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

2788

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

2571

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

2572

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

2789

2573

else:

2790

2574

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

2791

2575

exc_info=e)

2792

2576

raise

2793

2577

except EOFError as e:

2794

2578

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

2795

"EOFError:",

2796

exc_info=e)

2579

"EOFError:", exc_info=e)

2797

2580

2798

2581

with PGPEngine() as pgp:

2799

for client_name, client in clients_data.items():

2582

for client_name, client in clients_data.iteritems():

2800

2583

# Skip removed clients

2801

2584

if client_name not in client_settings:

2802

2585

continue

2811

2594

# For each value in new config, check if it

2812

2595

# differs from the old config value (Except for

2813

2596

# the "secret" attribute)

2814

if (name != "secret"

2815

and (value !=

2816

old_client_settings[client_name][name])):

2597

if (name != "secret" and

2598

value != old_client_settings[client_name]

2599

[name]):

2817

2600

client[name] = value

2818

2601

except KeyError:

2819

2602

pass

2820

2603

2821

2604

# Clients who has passed its expire date can still be

2822

# enabled if its last checker was successful. A Client

2605

# enabled if its last checker was successful. Clients

2823

2606

# whose checker succeeded before we stored its state is

2824

2607

# assumed to have successfully run all checkers during

2825

2608

# downtime.

2827

2610

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

2828

2611

if not client["last_checked_ok"]:

2829

2612

logger.warning(

2830

"disabling client {} - Client never "

2831

"performed a successful checker".format(

2832

client_name))

2613

"disabling client {0} - Client never "

2614

"performed a successful checker"

2615

.format(client_name))

2833

2616

client["enabled"] = False

2834

2617

elif client["last_checker_status"] != 0:

2835

2618

logger.warning(

2836

"disabling client {} - Client last"

2837

" checker failed with error code"

2838

" {}".format(

2839

client_name,

2840

client["last_checker_status"]))

2619

"disabling client {0} - Client "

2620

"last checker failed with error code {1}"

2621

.format(client_name,

2622

client["last_checker_status"]))

2841

2623

client["enabled"] = False

2842

2624

else:

2843

client["expires"] = (

2844

datetime.datetime.utcnow()

2845

+ client["timeout"])

2625

client["expires"] = (datetime.datetime

2626

.utcnow()

2627

+ client["timeout"])

2846

2628

logger.debug("Last checker succeeded,"

2847

" keeping {} enabled".format(

2848

client_name))

2629

" keeping {0} enabled"

2630

.format(client_name))

2849

2631

try:

2850

client["secret"] = pgp.decrypt(

2851

client["encrypted_secret"],

2852

client_settings[client_name]["secret"])

2632

client["secret"] = (

2633

pgp.decrypt(client["encrypted_secret"],

2634

client_settings[client_name]

2635

["secret"]))

2853

2636

except PGPError:

2854

2637

# If decryption fails, we use secret from new settings

2855

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

2856

client_name))

2857

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

2858

["secret"])

2638

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

2639

.format(client_name))

2640

client["secret"] = (

2641

client_settings[client_name]["secret"])

2859

2642

2860

2643

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

2861

2644

for client_name in (set(old_client_settings)

2866

2649

clients_data[client_name] = client_settings[client_name]

2867

2650

2868

2651

# Create all client objects

2869

for client_name, client in clients_data.items():

2652

for client_name, client in clients_data.iteritems():

2870

2653

tcp_server.clients[client_name] = client_class(

2871

name = client_name,

2872

settings = client,

2654

name = client_name, settings = client,

2873

2655

server_settings = server_settings)

2874

2656

2875

2657

if not tcp_server.clients:

2877

2659

2878

2660

if not foreground:

2879

2661

if pidfile is not None:

2880

pid = os.getpid()

2881

2662

try:

2882

2663

with pidfile:

2883

print(pid, file=pidfile)

2664

pid = os.getpid()

2665

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

2884

2666

except IOError:

2885

2667

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

2886

2668

pidfilename, pid)

2891

2673

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

2892

2674

2893

2675

if use_dbus:

2894

2895

@alternate_dbus_interfaces(

2896

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

2897

class MandosDBusService(DBusObjectWithObjectManager):

2676

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

2677

"se.bsnet.fukt.Mandos"})

2678

class MandosDBusService(DBusObjectWithProperties):

2898

2679

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

2899

2900

2680

def __init__(self):

2901

2681

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

2902

2903

2682

_interface = "se.recompile.Mandos"

2904

2683

2684

@dbus_interface_annotations(_interface)

2685

def _foo(self):

2686

return { "org.freedesktop.DBus.Property"

2687

".EmitsChangedSignal":

2688

"false"}

2689

2905

2690

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

2906

2691

def ClientAdded(self, objpath):

2907

2692

"D-Bus signal"

2912

2697

"D-Bus signal"

2913

2698

pass

2914

2699

2915

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

2916

"true"})

2917

2700

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

2918

2701

def ClientRemoved(self, objpath, name):

2919

2702

"D-Bus signal"

2920

2703

pass

2921

2704

2922

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

2923

"true"})

2924

2705

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

2925

2706

def GetAllClients(self):

2926

2707

"D-Bus method"

2927

return dbus.Array(c.dbus_object_path for c in

2708

return dbus.Array(c.dbus_object_path

2709

for c in

2928

2710

tcp_server.clients.itervalues())

2929

2711

2930

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

2931

"true"})

2932

2712

@dbus.service.method(_interface,

2933

2713

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

2934

2714

def GetAllClientsWithProperties(self):

2935

2715

"D-Bus method"

2936

2716

return dbus.Dictionary(

2937

{ c.dbus_object_path: c.GetAll(

2938

"se.recompile.Mandos.Client")

2939

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

2717

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

2718

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

2940

2719

signature="oa{sv}")

2941

2720

2942

2721

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

2946

2725

if c.dbus_object_path == object_path:

2947

2726

del tcp_server.clients[c.name]

2948

2727

c.remove_from_connection()

2949

# Don't signal the disabling

2728

# Don't signal anything except ClientRemoved

2950

2729

c.disable(quiet=True)

2951

# Emit D-Bus signal for removal

2952

self.client_removed_signal(c)

2730

# Emit D-Bus signal

2731

self.ClientRemoved(object_path, c.name)

2953

2732

return

2954

2733

raise KeyError(object_path)

2955

2734

2956

2735

del _interface

2957

2958

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

2959

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

2960

def GetManagedObjects(self):

2961

"""D-Bus method"""

2962

return dbus.Dictionary(

2963

{ client.dbus_object_path:

2964

dbus.Dictionary(

2965

{ interface: client.GetAll(interface)

2966

for interface in

2967

client._get_all_interface_names()})

2968

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

2969

2970

def client_added_signal(self, client):

2971

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

2972

if use_dbus:

2973

# New standard signal

2974

self.InterfacesAdded(

2975

client.dbus_object_path,

2976

dbus.Dictionary(

2977

{ interface: client.GetAll(interface)

2978

for interface in

2979

client._get_all_interface_names()}))

2980

# Old signal

2981

self.ClientAdded(client.dbus_object_path)

2982

2983

def client_removed_signal(self, client):

2984

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

2985

if use_dbus:

2986

# New standard signal

2987

self.InterfacesRemoved(

2988

client.dbus_object_path,

2989

client._get_all_interface_names())

2990

# Old signal

2991

self.ClientRemoved(client.dbus_object_path,

2992

client.name)

2993

2736

2994

2737

mandos_dbus_service = MandosDBusService()

2995

2738

2996

2739

def cleanup():

2997

2740

"Cleanup function; run on exit"

2998

if zeroconf:

2999

service.cleanup()

2741

service.cleanup()

3000

2742

3001

2743

multiprocessing.active_children()

3002

2744

wnull.close()

3016

2758

3017

2759

# A list of attributes that can not be pickled

3018

2760

# + secret.

3019

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

3020

"checker", "server_settings" }

3021

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

3022

.Object):

2761

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

2762

"checker", "server_settings"))

2763

for name, typ in (inspect.getmembers

2764

(dbus.service.Object)):

3023

2765

exclude.add(name)

3024

2766

3025

2767

client_dict["encrypted_secret"] = (client

3032

2774

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

3033

2775

3034

2776

try:

3035

with tempfile.NamedTemporaryFile(

3036

mode='wb',

3037

suffix=".pickle",

3038

prefix='clients-',

3039

dir=os.path.dirname(stored_state_path),

3040

delete=False) as stored_state:

2777

with (tempfile.NamedTemporaryFile

2778

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

2779

dir=os.path.dirname(stored_state_path),

2780

delete=False)) as stored_state:

3041

2781

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

3042

tempname = stored_state.name

2782

tempname=stored_state.name

3043

2783

os.rename(tempname, stored_state_path)

3044

2784

except (IOError, OSError) as e:

3045

2785

if not debug:

3048

2788

except NameError:

3049

2789

pass

3050

2790

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

3051

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

2791

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

3052

2792

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

3053

2793

else:

3054

2794

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

3060

2800

name, client = tcp_server.clients.popitem()

3061

2801

if use_dbus:

3062

2802

client.remove_from_connection()

3063

# Don't signal the disabling

2803

# Don't signal anything except ClientRemoved

3064

2804

client.disable(quiet=True)

3065

# Emit D-Bus signal for removal

3066

2805

if use_dbus:

3067

mandos_dbus_service.client_removed_signal(client)

2806

# Emit D-Bus signal

2807

mandos_dbus_service.ClientRemoved(client

2808

.dbus_object_path,

2809

client.name)

3068

2810

client_settings.clear()

3069

2811

3070

2812

atexit.register(cleanup)

3071

2813

3072

2814

for client in tcp_server.clients.itervalues():

3073

2815

if use_dbus:

3074

# Emit D-Bus signal for adding

3075

mandos_dbus_service.client_added_signal(client)

2816

# Emit D-Bus signal

2817

mandos_dbus_service.ClientAdded(client.dbus_object_path)

3076

2818

# Need to initiate checking of clients

3077

2819

if client.enabled:

3078

2820

client.init_checker()

3081

2823

tcp_server.server_activate()

3082

2824

3083

2825

# Find out what port we got

3084

if zeroconf:

3085

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

2826

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

3086

2827

if use_ipv6:

3087

2828

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

3088

2829

" flowinfo %d, scope_id %d",

3094

2835

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

3095

2836

3096

2837

try:

3097

if zeroconf:

3098

# From the Avahi example code

3099

try:

3100

service.activate()

3101

except dbus.exceptions.DBusException as error:

3102

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

3103

cleanup()

3104

sys.exit(1)

3105

# End of Avahi example code

2838

# From the Avahi example code

2839

try:

2840

service.activate()

2841

except dbus.exceptions.DBusException as error:

2842

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

2843

cleanup()

2844

sys.exit(1)

2845

# End of Avahi example code

3106

2846

3107

2847

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

3108

2848

lambda *args, **kwargs:

3123

2863

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

3124

2864

cleanup()

3125

2865

3126

3127

2866

if __name__ == '__main__':

3128

2867

main()