/mandos/release : revision 237.7.333

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#!/usr/bin/python

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#!/usr/bin/python2.7

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

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#

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

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

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#

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# Everything else is

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#

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

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

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from future_builtins import *

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import SocketServer as socketserver

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try:

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import SocketServer as socketserver

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except ImportError:

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import socketserver

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import socket

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import argparse

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import datetime

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import gnutls.library.functions

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import gnutls.library.constants

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import gnutls.library.types

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import ConfigParser as configparser

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try:

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import ConfigParser as configparser

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except ImportError:

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import configparser

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import sys

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import re

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import os

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import struct

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import fcntl

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import functools

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import cPickle as pickle

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try:

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import cPickle as pickle

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except ImportError:

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import pickle

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import multiprocessing

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import types

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import binascii

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import tempfile

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import itertools

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import collections

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import codecs

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import dbus

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import dbus.service

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import gobject

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try:

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import gobject

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except ImportError:

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from gi.repository import GObject as gobject

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import avahi

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from dbus.mainloop.glib import DBusGMainLoop

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import ctypes

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except ImportError:

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SO_BINDTODEVICE = None

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version = "1.6.5"

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if sys.version_info.major == 2:

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str = unicode

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version = "1.6.9"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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syslogger = None

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try:

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if_nametoindex = (ctypes.cdll.LoadLibrary

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

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.if_nametoindex)

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if_nametoindex = ctypes.cdll.LoadLibrary(

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

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except (OSError, AttributeError):

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def if_nametoindex(interface):

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

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

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

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ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

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

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interface))

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

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ifreq[16:20])[0]

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

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

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return interface_index

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

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"""init logger and add loglevel"""

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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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global syslogger

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syslogger = (logging.handlers.SysLogHandler(

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facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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address = "/dev/log"))

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syslogger.setFormatter(logging.Formatter

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

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' %(message)s'))

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class PGPEngine(object):

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

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def __init__(self):

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

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self.gnupgargs = ['--batch',

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def encrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(dir=self.tempdir

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) as passfile:

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with tempfile.NamedTemporaryFile(

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dir=self.tempdir) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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def decrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(dir = self.tempdir

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) as passfile:

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with tempfile.NamedTemporaryFile(

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dir = self.tempdir) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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stdin = subprocess.PIPE,

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stdout = subprocess.PIPE,

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stderr = subprocess.PIPE)

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decrypted_plaintext, err = proc.communicate(input

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= data)

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

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if proc.returncode != 0:

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raise PGPError(err)

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return decrypted_plaintext

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class AvahiError(Exception):

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

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self.value = value

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

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def __unicode__(self):

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return unicode(repr(self.value))

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

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**kwargs)

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class AvahiServiceError(AvahiError):

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pass

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class AvahiGroupError(AvahiError):

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pass

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bus: dbus.SystemBus()

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"""

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

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

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

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protocol = avahi.PROTO_UNSPEC, bus = None):

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def __init__(self,

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interface = avahi.IF_UNSPEC,

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name = None,

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servicetype = None,

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port = None,

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TXT = None,

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domain = "",

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host = "",

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max_renames = 32768,

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protocol = avahi.PROTO_UNSPEC,

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bus = None):

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self.interface = interface

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self.name = name

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self.type = servicetype

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self.bus = bus

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self.entry_group_state_changed_match = None

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def rename(self):

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def rename(self, remove=True):

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

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if self.rename_count >= self.max_renames:

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

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" after %i retries, exiting.",

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self.rename_count)

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raise AvahiServiceError("Too many renames")

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self.name = unicode(self.server

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.GetAlternativeServiceName(self.name))

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self.name = str(

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self.server.GetAlternativeServiceName(self.name))

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self.rename_count += 1

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

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self.name)

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self.remove()

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if remove:

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self.remove()

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

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

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self.cleanup()

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os._exit(1)

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self.rename_count += 1

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if (error.get_dbus_name()

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

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

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return self.rename(remove=False)

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else:

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

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self.cleanup()

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os._exit(1)

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def remove(self):

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

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

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

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unicode(error))

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

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.format(error))

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str(error))

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

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def cleanup(self):

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

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

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

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

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bad_states = { avahi.SERVER_INVALID:

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"Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION:

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"Zeroconf server name collision",

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avahi.SERVER_FAILURE:

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"Zeroconf server failure" }

384

bad_states = {

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avahi.SERVER_INVALID: "Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION: "Zeroconf server name collision",

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avahi.SERVER_FAILURE: "Zeroconf server failure",

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}

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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

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

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self.cleanup()

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397

elif state == avahi.SERVER_RUNNING:

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self.add()

398

try:

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self.add()

400

except dbus.exceptions.DBusException as error:

401

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)

406

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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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):

430

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

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

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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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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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return ret

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437

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def timedelta_to_milliseconds(td):

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"Convert a datetime.timedelta() to milliseconds"

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

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+ (td.seconds * 1000)

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+ (td.microseconds // 1000))

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def call_pipe(connection, # : multiprocessing.Connection

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func, *args, **kwargs):

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

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

443

return value on the provided multiprocessing.Connection.

444

"""

445

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

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connection.close()

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class Client(object):

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

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last_checker_status: integer between 0 and 255 reflecting exit

439

477

status of last checker. -1 reflects crashed

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478

checker, -2 means no checker completed yet.

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last_checker_signal: The signal which killed the last checker, if

480

last_checker_status is -1

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

442

482

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

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483

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")

459

client_defaults = { "timeout": "PT5M",

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"extended_timeout": "PT15M",

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"interval": "PT2M",

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

463

"host": "",

464

"approval_delay": "PT0S",

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"approval_duration": "PT1S",

466

"approved_by_default": "True",

467

"enabled": "True",

468

}

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def timeout_milliseconds(self):

471

"Return the 'timeout' attribute in milliseconds"

472

return timedelta_to_milliseconds(self.timeout)

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def extended_timeout_milliseconds(self):

475

"Return the 'extended_timeout' attribute in milliseconds"

476

return timedelta_to_milliseconds(self.extended_timeout)

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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)

499

client_defaults = {

500

"timeout": "PT5M",

501

"extended_timeout": "PT15M",

502

"interval": "PT2M",

503

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

504

"host": "",

505

"approval_delay": "PT0S",

506

"approval_duration": "PT1S",

507

"approved_by_default": "True",

508

"enabled": "True",

509

}

484

510

485

511

@staticmethod

486

512

def config_parser(config):

502

528

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

503

529

"enabled")

504

530

531

# Uppercase and remove spaces from fingerprint for later

532

# comparison purposes with return value from the

533

# fingerprint() function

505

534

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

506

535

.replace(" ", ""))

507

536

if "secret" in section:

512

541

"rb") as secfile:

513

542

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

514

543

else:

515

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

544

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

516

545

.format(section))

517

546

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

518

547

client["extended_timeout"] = string_to_delta(

535

564

server_settings = {}

536

565

self.server_settings = server_settings

537

566

# adding all client settings

538

for setting, value in settings.iteritems():

567

for setting, value in settings.items():

539

568

setattr(self, setting, value)

540

569

541

570

if self.enabled:

549

578

self.expires = None

550

579

551

580

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

555

581

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

556

582

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

557

583

datetime.datetime.utcnow())

564

590

self.current_checker_command = None

565

591

self.approved = None

566

592

self.approvals_pending = 0

567

self.changedstate = (multiprocessing_manager

568

.Condition(multiprocessing_manager

569

.Lock()))

570

self.client_structure = [attr for attr in

571

self.__dict__.iterkeys()

593

self.changedstate = multiprocessing_manager.Condition(

594

multiprocessing_manager.Lock())

595

self.client_structure = [attr

596

for attr in self.__dict__.iterkeys()

572

597

if not attr.startswith("_")]

573

598

self.client_structure.append("client_structure")

574

599

575

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

576

lambda obj:

577

isinstance(obj,

578

property)):

600

for name, t in inspect.getmembers(

601

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

579

602

if not name.startswith("_"):

580

603

self.client_structure.append(name)

581

604

623

646

# and every interval from then on.

624

647

if self.checker_initiator_tag is not None:

625

648

gobject.source_remove(self.checker_initiator_tag)

626

self.checker_initiator_tag = (gobject.timeout_add

627

(self.interval_milliseconds(),

628

self.start_checker))

649

self.checker_initiator_tag = gobject.timeout_add(

650

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

651

self.start_checker)

629

652

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

630

653

if self.disable_initiator_tag is not None:

631

654

gobject.source_remove(self.disable_initiator_tag)

632

self.disable_initiator_tag = (gobject.timeout_add

633

(self.timeout_milliseconds(),

634

self.disable))

655

self.disable_initiator_tag = gobject.timeout_add(

656

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

635

657

# Also start a new checker *right now*.

636

658

self.start_checker()

637

659

638

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

660

def checker_callback(self, source, condition, connection,

661

command):

639

662

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

640

663

self.checker_callback_tag = None

641

664

self.checker = None

642

if os.WIFEXITED(condition):

643

self.last_checker_status = os.WEXITSTATUS(condition)

665

# Read return code from connection (see call_pipe)

666

returncode = connection.recv()

667

connection.close()

668

669

if returncode >= 0:

670

self.last_checker_status = returncode

671

self.last_checker_signal = None

644

672

if self.last_checker_status == 0:

645

673

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

646

674

vars(self))

647

675

self.checked_ok()

648

676

else:

649

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

650

vars(self))

677

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

651

678

else:

652

679

self.last_checker_status = -1

680

self.last_checker_signal = -returncode

653

681

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

654

682

vars(self))

683

return False

655

684

656

685

def checked_ok(self):

657

686

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

658

687

self.last_checked_ok = datetime.datetime.utcnow()

659

688

self.last_checker_status = 0

689

self.last_checker_signal = None

660

690

self.bump_timeout()

661

691

662

692

def bump_timeout(self, timeout=None):

667

697

gobject.source_remove(self.disable_initiator_tag)

668

698

self.disable_initiator_tag = None

669

699

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

670

self.disable_initiator_tag = (gobject.timeout_add

671

(timedelta_to_milliseconds

672

(timeout), self.disable))

700

self.disable_initiator_tag = gobject.timeout_add(

701

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

673

702

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

674

703

675

704

def need_approval(self):

689

718

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

690

719

# should be.

691

720

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)

721

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

722

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

723

self.checker.join()

724

self.checker = None

706

725

# Start a new checker if needed

707

726

if self.checker is None:

708

727

# Escape attributes for the shell

709

escaped_attrs = dict(

710

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

711

for attr in

712

self.runtime_expansions)

728

escaped_attrs = {

729

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

730

for attr in self.runtime_expansions }

713

731

try:

714

732

command = self.checker_command % escaped_attrs

715

733

except TypeError as error:

716

734

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

717

self.checker_command, exc_info=error)

718

return True # Try again later

735

self.checker_command,

736

exc_info=error)

737

return True # Try again later

719

738

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",

741

exc_info=error)

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)

739

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

740

self.name)

741

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

742

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

743

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

744

# always replaced by /dev/null.)

745

# The exception is when not debugging but nevertheless

746

# running in the foreground; use the previously

747

# created wnull.

748

popen_args = { "close_fds": True,

749

"shell": True,

750

"cwd": "/" }

751

if (not self.server_settings["debug"]

752

and self.server_settings["foreground"]):

753

popen_args.update({"stdout": wnull,

754

"stderr": wnull })

755

pipe = multiprocessing.Pipe(duplex = False)

756

self.checker = multiprocessing.Process(

757

target = call_pipe,

758

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

759

kwargs = popen_args)

760

self.checker.start()

761

self.checker_callback_tag = gobject.io_add_watch(

762

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

763

self.checker_callback, pipe[0], command)

761

764

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

762

765

return True

763

766

769

772

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

770

773

return

771

774

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

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

self.checker.terminate()

780

776

self.checker = None

781

777

782

778

783

def dbus_service_property(dbus_interface, signature="v",

784

access="readwrite", byte_arrays=False):

779

def dbus_service_property(dbus_interface,

780

signature="v",

781

access="readwrite",

782

byte_arrays=False):

785

783

"""Decorators for marking methods of a DBusObjectWithProperties to

786

784

become properties on the D-Bus.

787

785

796

794

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

797

795

if byte_arrays and signature != "ay":

798

796

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

799

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

797

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

798

800

799

def decorator(func):

801

800

func._dbus_is_property = True

802

801

func._dbus_interface = dbus_interface

807

806

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

808

807

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

809

808

return func

809

810

return decorator

811

812

821

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

822

"false"}

823

"""

824

825

def decorator(func):

825

826

func._dbus_is_interface = True

826

827

func._dbus_interface = dbus_interface

827

828

func._dbus_name = dbus_interface

828

829

return func

830

829

831

return decorator

830

832

831

833

835

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

834

836

Usage:

835

837

838

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

839

"org.freedesktop.DBus.Property."

840

"EmitsChangedSignal": "false"})

836

841

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

837

842

access="r")

838

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

839

"org.freedesktop.DBus.Property."

840

"EmitsChangedSignal": "false"})

841

843

def Property_dbus_property(self):

842

844

return dbus.Boolean(False)

845

846

See also the DBusObjectWithAnnotations class.

843

847

"""

848

844

849

def decorator(func):

845

850

func._dbus_annotations = annotations

846

851

return func

852

847

853

return decorator

848

854

849

855

850

856

class DBusPropertyException(dbus.exceptions.DBusException):

851

857

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

852

858

"""

853

def __unicode__(self):

854

return unicode(str(self))

859

pass

855

860

856

861

857

862

class DBusPropertyAccessException(DBusPropertyException):

866

871

pass

867

872

868

873

869

class DBusObjectWithProperties(dbus.service.Object):

870

"""A D-Bus object with properties.

874

class DBusObjectWithAnnotations(dbus.service.Object):

875

"""A D-Bus object with annotations.

871

876

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.

877

Classes inheriting from this can use the dbus_annotations

878

decorator to add annotations to methods or signals.

875

879

"""

876

880

877

881

@staticmethod

881

885

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

882

886

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

883

887

"""

884

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

888

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

885

889

False)

886

890

887

891

def _get_all_dbus_things(self, thing):

888

892

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

889

893

"""

890

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

891

name),

894

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

892

895

athing.__get__(self))

893

896

for cls in self.__class__.__mro__

894

897

for name, athing in

895

inspect.getmembers(cls,

896

self._is_dbus_thing(thing)))

898

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

899

900

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

901

out_signature = "s",

902

path_keyword = 'object_path',

903

connection_keyword = 'connection')

904

def Introspect(self, object_path, connection):

905

"""Overloading of standard D-Bus method.

906

907

Inserts annotation tags on methods and signals.

908

"""

909

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

910

connection)

911

try:

912

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

913

914

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

915

# Add annotation tags

916

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

917

for tag in if_tag.getElementsByTagName(typ):

918

annots = dict()

919

for name, prop in (self.

920

_get_all_dbus_things(typ)):

921

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

922

and prop._dbus_interface

923

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

924

annots.update(getattr(

925

prop, "_dbus_annotations", {}))

926

for name, value in annots.items():

927

ann_tag = document.createElement(

928

"annotation")

929

ann_tag.setAttribute("name", name)

930

ann_tag.setAttribute("value", value)

931

tag.appendChild(ann_tag)

932

# Add interface annotation tags

933

for annotation, value in dict(

934

itertools.chain.from_iterable(

935

annotations().items()

936

for name, annotations

937

in self._get_all_dbus_things("interface")

938

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

939

)).items():

940

ann_tag = document.createElement("annotation")

941

ann_tag.setAttribute("name", annotation)

942

ann_tag.setAttribute("value", value)

943

if_tag.appendChild(ann_tag)

944

# Fix argument name for the Introspect method itself

945

if (if_tag.getAttribute("name")

946

== dbus.INTROSPECTABLE_IFACE):

947

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

948

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

949

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

950

if (arg.getAttribute("direction")

951

== "out"):

952

arg.setAttribute("name",

953

"xml_data")

954

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

955

document.unlink()

956

except (AttributeError, xml.dom.DOMException,

957

xml.parsers.expat.ExpatError) as error:

958

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

959

exc_info=error)

960

return xmlstring

961

962

963

class DBusObjectWithProperties(DBusObjectWithAnnotations):

964

"""A D-Bus object with properties.

965

966

Classes inheriting from this can use the dbus_service_property

967

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

968

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

969

"""

897

970

898

971

def _get_dbus_property(self, interface_name, property_name):

899

972

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

900

973

property with the specified name and interface.

901

974

"""

902

for cls in self.__class__.__mro__:

903

for name, value in (inspect.getmembers

904

(cls,

905

self._is_dbus_thing("property"))):

975

for cls in self.__class__.__mro__:

976

for name, value in inspect.getmembers(

977

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

906

978

if (value._dbus_name == property_name

907

979

and value._dbus_interface == interface_name):

908

980

return value.__get__(self)

909

981

910

982

# No such property

911

raise DBusPropertyNotFound(self.dbus_object_path + ":"

912

+ interface_name + "."

913

+ property_name)

914

915

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

983

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

984

self.dbus_object_path, interface_name, property_name))

985

986

@classmethod

987

def _get_all_interface_names(cls):

988

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

989

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

990

"_dbus_interface", None)

991

for x in (inspect.getmro(cls))

992

for attr in dir(x))

993

if name is not None)

994

995

@dbus.service.method(dbus.PROPERTIES_IFACE,

996

in_signature="ss",

916

997

out_signature="v")

917

998

def Get(self, interface_name, property_name):

918

999

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

937

1018

# signatures other than "ay".

938

1019

if prop._dbus_signature != "ay":

939

1020

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

940

"'ay' signature {0!r}"

1021

"'ay' signature {!r}"

941

1022

.format(prop._dbus_signature))

942

1023

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

943

1024

for byte in value))

944

1025

prop(value)

945

1026

946

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

1027

@dbus.service.method(dbus.PROPERTIES_IFACE,

1028

in_signature="s",

947

1029

out_signature="a{sv}")

948

1030

def GetAll(self, interface_name):

949

1031

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

964

1046

if not hasattr(value, "variant_level"):

965

1047

properties[name] = value

966

1048

continue

967

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

968

value.variant_level+1)

1049

properties[name] = type(value)(

1050

value, variant_level = value.variant_level + 1)

969

1051

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

970

1052

1053

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

1054

def PropertiesChanged(self, interface_name, changed_properties,

1055

invalidated_properties):

1056

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

1057

standard.

1058

"""

1059

pass

1060

971

1061

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

972

1062

out_signature="s",

973

1063

path_keyword='object_path',

977

1067

978

1068

Inserts property tags and interface annotation tags.

979

1069

"""

980

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

981

connection)

1070

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1071

object_path,

1072

connection)

982

1073

try:

983

1074

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

1075

984

1076

def make_tag(document, name, prop):

985

1077

e = document.createElement("property")

986

1078

e.setAttribute("name", name)

987

1079

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

988

1080

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

989

1081

return e

1082

990

1083

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

991

1084

# Add property tags

992

1085

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

995

1088

if prop._dbus_interface

996

1089

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

997

1090

if_tag.appendChild(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)

1091

# Add annotation tags for properties

1092

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

1093

annots = dict()

1094

for name, prop in self._get_all_dbus_things(

1095

"property"):

1096

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

1097

and prop._dbus_interface

1098

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

1099

annots.update(getattr(

1100

prop, "_dbus_annotations", {}))

1101

for name, value in annots.items():

1102

ann_tag = document.createElement(

1103

"annotation")

1104

ann_tag.setAttribute("name", name)

1105

ann_tag.setAttribute("value", value)

1106

tag.appendChild(ann_tag)

1029

1107

# Add the names to the return values for the

1030

1108

# "org.freedesktop.DBus.Properties" methods

1031

1109

if (if_tag.getAttribute("name")

1049

1127

exc_info=error)

1050

1128

return xmlstring

1051

1129

1130

try:

1131

dbus.OBJECT_MANAGER_IFACE

1132

except AttributeError:

1133

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

1134

1135

class DBusObjectWithObjectManager(DBusObjectWithAnnotations):

1136

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

1137

1138

Classes inheriting from this exposes the standard

1139

GetManagedObjects call and the InterfacesAdded and

1140

InterfacesRemoved signals on the standard

1141

"org.freedesktop.DBus.ObjectManager" interface.

1142

1143

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

1144

manually.

1145

"""

1146

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

1147

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

1148

def GetManagedObjects(self):

1149

"""This function must be overridden"""

1150

raise NotImplementedError()

1151

1152

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,

1153

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

1154

def InterfacesAdded(self, object_path, interfaces_and_properties):

1155

pass

1156

1157

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,

1158

signature = "oas")

1159

def InterfacesRemoved(self, object_path, interfaces):

1160

pass

1161

1162

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1163

out_signature = "s",

1164

path_keyword = 'object_path',

1165

connection_keyword = 'connection')

1166

def Introspect(self, object_path, connection):

1167

"""Overloading of standard D-Bus method.

1168

1169

Override return argument name of GetManagedObjects to be

1170

"objpath_interfaces_and_properties"

1171

"""

1172

xmlstring = DBusObjectWithAnnotations(self, object_path,

1173

connection)

1174

try:

1175

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

1176

1177

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

1178

# Fix argument name for the GetManagedObjects method

1179

if (if_tag.getAttribute("name")

1180

== dbus.OBJECT_MANAGER_IFACE):

1181

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

1182

if (cn.getAttribute("name")

1183

== "GetManagedObjects"):

1184

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

1185

if (arg.getAttribute("direction")

1186

== "out"):

1187

arg.setAttribute(

1188

"name",

1189

"objpath_interfaces"

1190

"_and_properties")

1191

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

1192

document.unlink()

1193

except (AttributeError, xml.dom.DOMException,

1194

xml.parsers.expat.ExpatError) as error:

1195

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

1196

exc_info = error)

1197

return xmlstring

1052

1198

1053

1199

def datetime_to_dbus(dt, variant_level=0):

1054

1200

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

1055

1201

if dt is None:

1056

1202

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

1057

return dbus.String(dt.isoformat(),

1058

variant_level=variant_level)

1203

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

1059

1204

1060

1205

1061

1206

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1081

1226

(from DBusObjectWithProperties) and interfaces (from the

1082

1227

dbus_interface_annotations decorator).

1083

1228

"""

1229

1084

1230

def wrapper(cls):

1085

1231

for orig_interface_name, alt_interface_name in (

1086

alt_interface_names.iteritems()):

1232

alt_interface_names.items()):

1087

1233

attr = {}

1088

1234

interface_names = set()

1089

1235

# Go though all attributes of the class

1091

1237

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

1092

1238

# with the wrong interface name

1093

1239

if (not hasattr(attribute, "_dbus_interface")

1094

or not attribute._dbus_interface

1095

.startswith(orig_interface_name)):

1240

or not attribute._dbus_interface.startswith(

1241

orig_interface_name)):

1096

1242

continue

1097

1243

# Create an alternate D-Bus interface name based on

1098

1244

# the current name

1099

alt_interface = (attribute._dbus_interface

1100

.replace(orig_interface_name,

1101

alt_interface_name))

1245

alt_interface = attribute._dbus_interface.replace(

1246

orig_interface_name, alt_interface_name)

1102

1247

interface_names.add(alt_interface)

1103

1248

# Is this a D-Bus signal?

1104

1249

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

1105

# Extract the original non-method undecorated

1106

# function by black magic

1107

nonmethod_func = (dict(

1250

if sys.version_info.major == 2:

1251

# Extract the original non-method undecorated

1252

# function by black magic

1253

nonmethod_func = (dict(

1108

1254

zip(attribute.func_code.co_freevars,

1109

attribute.__closure__))["func"]

1110

.cell_contents)

1255

attribute.__closure__))

1256

["func"].cell_contents)

1257

else:

1258

nonmethod_func = attribute

1111

1259

# Create a new, but exactly alike, function

1112

1260

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

1113

1261

# with the alternate D-Bus interface name

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)))

1262

if sys.version_info.major == 2:

1263

new_function = types.FunctionType(

1264

nonmethod_func.func_code,

1265

nonmethod_func.func_globals,

1266

nonmethod_func.func_name,

1267

nonmethod_func.func_defaults,

1268

nonmethod_func.func_closure)

1269

else:

1270

new_function = types.FunctionType(

1271

nonmethod_func.__code__,

1272

nonmethod_func.__globals__,

1273

nonmethod_func.__name__,

1274

nonmethod_func.__defaults__,

1275

nonmethod_func.__closure__)

1276

new_function = (dbus.service.signal(

1277

alt_interface,

1278

attribute._dbus_signature)(new_function))

1123

1279

# Copy annotations, if any

1124

1280

try:

1125

new_function._dbus_annotations = (

1126

dict(attribute._dbus_annotations))

1281

new_function._dbus_annotations = dict(

1282

attribute._dbus_annotations)

1127

1283

except AttributeError:

1128

1284

pass

1129

1285

# Define a creator of a function to call both the

1134

1290

"""This function is a scope container to pass

1135

1291

func1 and func2 to the "call_both" function

1136

1292

outside of its arguments"""

1293

1137

1294

def call_both(*args, **kwargs):

1138

1295

"""This function will emit two D-Bus

1139

1296

signals by calling func1 and func2"""

1140

1297

func1(*args, **kwargs)

1141

1298

func2(*args, **kwargs)

1299

1142

1300

return call_both

1143

1301

# Create the "call_both" function and add it to

1144

1302

# the class

1149

1307

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

1150

1308

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

1151

1309

# to the class.

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)))

1310

attr[attrname] = (

1311

dbus.service.method(

1312

alt_interface,

1313

attribute._dbus_in_signature,

1314

attribute._dbus_out_signature)

1315

(types.FunctionType(attribute.func_code,

1316

attribute.func_globals,

1317

attribute.func_name,

1318

attribute.func_defaults,

1319

attribute.func_closure)))

1162

1320

# Copy annotations, if any

1163

1321

try:

1164

attr[attrname]._dbus_annotations = (

1165

dict(attribute._dbus_annotations))

1322

attr[attrname]._dbus_annotations = dict(

1323

attribute._dbus_annotations)

1166

1324

except AttributeError:

1167

1325

pass

1168

1326

# Is this a D-Bus property?

1171

1329

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

1172

1330

# property with the alternate D-Bus interface

1173

1331

# name. Add it to the class.

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)))

1332

attr[attrname] = (dbus_service_property(

1333

alt_interface, attribute._dbus_signature,

1334

attribute._dbus_access,

1335

attribute._dbus_get_args_options

1336

["byte_arrays"])

1337

(types.FunctionType(

1338

attribute.func_code,

1339

attribute.func_globals,

1340

attribute.func_name,

1341

attribute.func_defaults,

1342

attribute.func_closure)))

1187

1343

# Copy annotations, if any

1188

1344

try:

1189

attr[attrname]._dbus_annotations = (

1190

dict(attribute._dbus_annotations))

1345

attr[attrname]._dbus_annotations = dict(

1346

attribute._dbus_annotations)

1191

1347

except AttributeError:

1192

1348

pass

1193

1349

# Is this a D-Bus interface?

1196

1352

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

1197

1353

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

1198

1354

# to the class.

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)))

1355

attr[attrname] = (

1356

dbus_interface_annotations(alt_interface)

1357

(types.FunctionType(attribute.func_code,

1358

attribute.func_globals,

1359

attribute.func_name,

1360

attribute.func_defaults,

1361

attribute.func_closure)))

1207

1362

if deprecate:

1208

1363

# Deprecate all alternate interfaces

1209

iname="_AlternateDBusNames_interface_annotation{0}"

1364

iname="_AlternateDBusNames_interface_annotation{}"

1210

1365

for interface_name in interface_names:

1366

1211

1367

@dbus_interface_annotations(interface_name)

1212

1368

def func(self):

1213

1369

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

1214

"true" }

1370

"true" }

1215

1371

# Find an unused name

1216

1372

for aname in (iname.format(i)

1217

1373

for i in itertools.count()):

1221

1377

if interface_names:

1222

1378

# Replace the class with a new subclass of it with

1223

1379

# methods, signals, etc. as created above.

1224

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

1225

(cls,), attr)

1380

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

1381

(cls, ), attr)

1226

1382

return cls

1383

1227

1384

return wrapper

1228

1385

1229

1386

1230

1387

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

1231

"se.bsnet.fukt.Mandos"})

1388

"se.bsnet.fukt.Mandos"})

1232

1389

class ClientDBus(Client, DBusObjectWithProperties):

1233

1390

"""A Client class using D-Bus

1234

1391

1238

1395

"""

1239

1396

1240

1397

runtime_expansions = (Client.runtime_expansions

1241

+ ("dbus_object_path",))

1398

+ ("dbus_object_path", ))

1399

1400

_interface = "se.recompile.Mandos.Client"

1242

1401

1243

1402

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

1244

1403

1247

1406

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

1248

1407

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

1249

1408

# the D-Bus

1250

client_object_name = unicode(self.name).translate(

1409

client_object_name = str(self.name).translate(

1251

1410

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

1252

1411

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

1253

self.dbus_object_path = (dbus.ObjectPath

1254

("/clients/" + client_object_name))

1412

self.dbus_object_path = dbus.ObjectPath(

1413

"/clients/" + client_object_name)

1255

1414

DBusObjectWithProperties.__init__(self, self.bus,

1256

1415

self.dbus_object_path)

1257

1416

1258

def notifychangeproperty(transform_func,

1259

dbus_name, type_func=lambda x: x,

1260

variant_level=1):

1417

def notifychangeproperty(transform_func, dbus_name,

1418

type_func=lambda x: x,

1419

variant_level=1,

1420

invalidate_only=False,

1421

_interface=_interface):

1261

1422

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

1262

1423

its changes to DBus.

1263

1424

1268

1429

to the D-Bus. Default: no transform

1269

1430

variant_level: D-Bus variant level. Default: 1

1270

1431

"""

1271

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

1432

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

1433

1272

1434

def setter(self, value):

1273

1435

if hasattr(self, "dbus_object_path"):

1274

1436

if (not hasattr(self, attrname) or

1275

1437

type_func(getattr(self, attrname, None))

1276

1438

!= type_func(value)):

1277

dbus_value = transform_func(type_func(value),

1278

variant_level

1279

=variant_level)

1280

self.PropertyChanged(dbus.String(dbus_name),

1281

dbus_value)

1439

if invalidate_only:

1440

self.PropertiesChanged(

1441

_interface, dbus.Dictionary(),

1442

dbus.Array((dbus_name, )))

1443

else:

1444

dbus_value = transform_func(

1445

type_func(value),

1446

variant_level = variant_level)

1447

self.PropertyChanged(dbus.String(dbus_name),

1448

dbus_value)

1449

self.PropertiesChanged(

1450

_interface,

1451

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

1452

dbus_value }),

1453

dbus.Array())

1282

1454

setattr(self, attrname, value)

1283

1455

1284

1456

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

1290

1462

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

1291

1463

last_enabled = notifychangeproperty(datetime_to_dbus,

1292

1464

"LastEnabled")

1293

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

1294

type_func = lambda checker:

1295

checker is not None)

1465

checker = notifychangeproperty(

1466

dbus.Boolean, "CheckerRunning",

1467

type_func = lambda checker: checker is not None)

1296

1468

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1297

1469

"LastCheckedOK")

1298

1470

last_checker_status = notifychangeproperty(dbus.Int16,

1301

1473

datetime_to_dbus, "LastApprovalRequest")

1302

1474

approved_by_default = notifychangeproperty(dbus.Boolean,

1303

1475

"ApprovedByDefault")

1304

approval_delay = notifychangeproperty(dbus.UInt64,

1305

"ApprovalDelay",

1306

type_func =

1307

timedelta_to_milliseconds)

1476

approval_delay = notifychangeproperty(

1477

dbus.UInt64, "ApprovalDelay",

1478

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

1308

1479

approval_duration = notifychangeproperty(

1309

1480

dbus.UInt64, "ApprovalDuration",

1310

type_func = timedelta_to_milliseconds)

1481

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

1311

1482

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

1312

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

1313

type_func =

1314

timedelta_to_milliseconds)

1483

timeout = notifychangeproperty(

1484

dbus.UInt64, "Timeout",

1485

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

1315

1486

extended_timeout = notifychangeproperty(

1316

1487

dbus.UInt64, "ExtendedTimeout",

1317

type_func = timedelta_to_milliseconds)

1318

interval = notifychangeproperty(dbus.UInt64,

1319

"Interval",

1320

type_func =

1321

timedelta_to_milliseconds)

1488

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

1489

interval = notifychangeproperty(

1490

dbus.UInt64, "Interval",

1491

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

1322

1492

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

1493

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

1494

invalidate_only=True)

1323

1495

1324

1496

del notifychangeproperty

1325

1497

1332

1504

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

1333

1505

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

1334

1506

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)

1507

def checker_callback(self, source, condition,

1508

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

1509

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

1510

connection, command, *args,

1511

**kwargs)

1512

exitstatus = self.last_checker_status

1513

if exitstatus >= 0:

1341

1514

# Emit D-Bus signal

1342

1515

self.CheckerCompleted(dbus.Int16(exitstatus),

1343

dbus.Int64(condition),

1516

# This is specific to GNU libC

1517

dbus.Int64(exitstatus << 8),

1344

1518

dbus.String(command))

1345

1519

else:

1346

1520

# Emit D-Bus signal

1347

1521

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

1348

dbus.Int64(condition),

1522

dbus.Int64(

1523

# This is specific to GNU libC

1524

(exitstatus << 8)

1525

| self.last_checker_signal),

1349

1526

dbus.String(command))

1350

1351

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

1352

*args, **kwargs)

1527

return ret

1353

1528

1354

1529

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

1355

1530

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

1367

1542

1368

1543

def approve(self, value=True):

1369

1544

self.approved = value

1370

gobject.timeout_add(timedelta_to_milliseconds

1371

(self.approval_duration),

1372

self._reset_approved)

1545

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

1546

* 1000), self._reset_approved)

1373

1547

self.send_changedstate()

1374

1548

1375

1549

## D-Bus methods, signals & properties

1376

_interface = "se.recompile.Mandos.Client"

1377

1550

1378

1551

## Interfaces

1379

1552

1380

@dbus_interface_annotations(_interface)

1381

def _foo(self):

1382

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

1383

"false"}

1384

1385

1553

## Signals

1386

1554

1387

1555

# CheckerCompleted - signal

1397

1565

pass

1398

1566

1399

1567

# PropertyChanged - signal

1568

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

1400

1569

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

1401

1570

def PropertyChanged(self, property, value):

1402

1571

"D-Bus signal"

1436

1605

self.checked_ok()

1437

1606

1438

1607

# Enable - method

1608

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

1439

1609

@dbus.service.method(_interface)

1440

1610

def Enable(self):

1441

1611

"D-Bus method"

1442

1612

self.enable()

1443

1613

1444

1614

# StartChecker - method

1615

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

1445

1616

@dbus.service.method(_interface)

1446

1617

def StartChecker(self):

1447

1618

"D-Bus method"

1448

1619

self.start_checker()

1449

1620

1450

1621

# Disable - method

1622

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

1451

1623

@dbus.service.method(_interface)

1452

1624

def Disable(self):

1453

1625

"D-Bus method"

1454

1626

self.disable()

1455

1627

1456

1628

# StopChecker - method

1629

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

1457

1630

@dbus.service.method(_interface)

1458

1631

def StopChecker(self):

1459

1632

self.stop_checker()

1466

1639

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

1467

1640

1468

1641

# ApprovedByDefault - property

1469

@dbus_service_property(_interface, signature="b",

1642

@dbus_service_property(_interface,

1643

signature="b",

1470

1644

access="readwrite")

1471

1645

def ApprovedByDefault_dbus_property(self, value=None):

1472

1646

if value is None: # get

1474

1648

self.approved_by_default = bool(value)

1475

1649

1476

1650

# ApprovalDelay - property

1477

@dbus_service_property(_interface, signature="t",

1651

@dbus_service_property(_interface,

1652

signature="t",

1478

1653

access="readwrite")

1479

1654

def ApprovalDelay_dbus_property(self, value=None):

1480

1655

if value is None: # get

1481

return dbus.UInt64(self.approval_delay_milliseconds())

1656

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

1657

* 1000)

1482

1658

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

1483

1659

1484

1660

# ApprovalDuration - property

1485

@dbus_service_property(_interface, signature="t",

1661

@dbus_service_property(_interface,

1662

signature="t",

1486

1663

access="readwrite")

1487

1664

def ApprovalDuration_dbus_property(self, value=None):

1488

1665

if value is None: # get

1489

return dbus.UInt64(timedelta_to_milliseconds(

1490

self.approval_duration))

1666

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

1667

* 1000)

1491

1668

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

1492

1669

1493

1670

# Name - property

1671

@dbus_annotations(

1672

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

1494

1673

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

1495

1674

def Name_dbus_property(self):

1496

1675

return dbus.String(self.name)

1497

1676

1498

1677

# Fingerprint - property

1678

@dbus_annotations(

1679

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

1499

1680

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

1500

1681

def Fingerprint_dbus_property(self):

1501

1682

return dbus.String(self.fingerprint)

1502

1683

1503

1684

# Host - property

1504

@dbus_service_property(_interface, signature="s",

1685

@dbus_service_property(_interface,

1686

signature="s",

1505

1687

access="readwrite")

1506

1688

def Host_dbus_property(self, value=None):

1507

1689

if value is None: # get

1508

1690

return dbus.String(self.host)

1509

self.host = unicode(value)

1691

self.host = str(value)

1510

1692

1511

1693

# Created - property

1694

@dbus_annotations(

1695

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

1512

1696

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

1513

1697

def Created_dbus_property(self):

1514

1698

return datetime_to_dbus(self.created)

1519

1703

return datetime_to_dbus(self.last_enabled)

1520

1704

1521

1705

# Enabled - property

1522

@dbus_service_property(_interface, signature="b",

1706

@dbus_service_property(_interface,

1707

signature="b",

1523

1708

access="readwrite")

1524

1709

def Enabled_dbus_property(self, value=None):

1525

1710

if value is None: # get

1530

1715

self.disable()

1531

1716

1532

1717

# LastCheckedOK - property

1533

@dbus_service_property(_interface, signature="s",

1718

@dbus_service_property(_interface,

1719

signature="s",

1534

1720

access="readwrite")

1535

1721

def LastCheckedOK_dbus_property(self, value=None):

1536

1722

if value is not None:

1539

1725

return datetime_to_dbus(self.last_checked_ok)

1540

1726

1541

1727

# LastCheckerStatus - property

1542

@dbus_service_property(_interface, signature="n",

1543

access="read")

1728

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

1544

1729

def LastCheckerStatus_dbus_property(self):

1545

1730

return dbus.Int16(self.last_checker_status)

1546

1731

1555

1740

return datetime_to_dbus(self.last_approval_request)

1556

1741

1557

1742

# Timeout - property

1558

@dbus_service_property(_interface, signature="t",

1743

@dbus_service_property(_interface,

1744

signature="t",

1559

1745

access="readwrite")

1560

1746

def Timeout_dbus_property(self, value=None):

1561

1747

if value is None: # get

1562

return dbus.UInt64(self.timeout_milliseconds())

1748

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

1563

1749

old_timeout = self.timeout

1564

1750

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

1565

1751

# Reschedule disabling

1574

1760

is None):

1575

1761

return

1576

1762

gobject.source_remove(self.disable_initiator_tag)

1577

self.disable_initiator_tag = (

1578

gobject.timeout_add(

1579

timedelta_to_milliseconds(self.expires - now),

1580

self.disable))

1763

self.disable_initiator_tag = gobject.timeout_add(

1764

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

1765

self.disable)

1581

1766

1582

1767

# ExtendedTimeout - property

1583

@dbus_service_property(_interface, signature="t",

1768

@dbus_service_property(_interface,

1769

signature="t",

1584

1770

access="readwrite")

1585

1771

def ExtendedTimeout_dbus_property(self, value=None):

1586

1772

if value is None: # get

1587

return dbus.UInt64(self.extended_timeout_milliseconds())

1773

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

1774

* 1000)

1588

1775

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

1589

1776

1590

1777

# Interval - property

1591

@dbus_service_property(_interface, signature="t",

1778

@dbus_service_property(_interface,

1779

signature="t",

1592

1780

access="readwrite")

1593

1781

def Interval_dbus_property(self, value=None):

1594

1782

if value is None: # get

1595

return dbus.UInt64(self.interval_milliseconds())

1783

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

1596

1784

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

1597

1785

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

1598

1786

return

1599

1787

if self.enabled:

1600

1788

# Reschedule checker run

1601

1789

gobject.source_remove(self.checker_initiator_tag)

1602

self.checker_initiator_tag = (gobject.timeout_add

1603

(value, self.start_checker))

1604

self.start_checker() # Start one now, too

1790

self.checker_initiator_tag = gobject.timeout_add(

1791

value, self.start_checker)

1792

self.start_checker() # Start one now, too

1605

1793

1606

1794

# Checker - property

1607

@dbus_service_property(_interface, signature="s",

1795

@dbus_service_property(_interface,

1796

signature="s",

1608

1797

access="readwrite")

1609

1798

def Checker_dbus_property(self, value=None):

1610

1799

if value is None: # get

1611

1800

return dbus.String(self.checker_command)

1612

self.checker_command = unicode(value)

1801

self.checker_command = str(value)

1613

1802

1614

1803

# CheckerRunning - property

1615

@dbus_service_property(_interface, signature="b",

1804

@dbus_service_property(_interface,

1805

signature="b",

1616

1806

access="readwrite")

1617

1807

def CheckerRunning_dbus_property(self, value=None):

1618

1808

if value is None: # get

1623

1813

self.stop_checker()

1624

1814

1625

1815

# ObjectPath - property

1816

@dbus_annotations(

1817

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

1818

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

1626

1819

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

1627

1820

def ObjectPath_dbus_property(self):

1628

1821

return self.dbus_object_path # is already a dbus.ObjectPath

1629

1822

1630

1823

# Secret = property

1631

@dbus_service_property(_interface, signature="ay",

1632

access="write", byte_arrays=True)

1824

@dbus_annotations(

1825

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

1826

"invalidates"})

1827

@dbus_service_property(_interface,

1828

signature="ay",

1829

access="write",

1830

byte_arrays=True)

1633

1831

def Secret_dbus_property(self, value):

1634

self.secret = str(value)

1832

self.secret = bytes(value)

1635

1833

1636

1834

del _interface

1637

1835

1641

1839

self._pipe = child_pipe

1642

1840

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

1643

1841

if not self._pipe.recv():

1644

raise KeyError()

1842

raise KeyError(fpr)

1645

1843

1646

1844

def __getattribute__(self, name):

1647

1845

if name == '_pipe':

1651

1849

if data[0] == 'data':

1652

1850

return data[1]

1653

1851

if data[0] == 'function':

1852

1654

1853

def func(*args, **kwargs):

1655

1854

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

1656

1855

return self._pipe.recv()[1]

1856

1657

1857

return func

1658

1858

1659

1859

def __setattr__(self, name, value):

1671

1871

def handle(self):

1672

1872

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

1673

1873

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

1674

unicode(self.client_address))

1874

str(self.client_address))

1675

1875

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

1676

1876

self.server.child_pipe.fileno())

1677

1877

1678

session = (gnutls.connection

1679

.ClientSession(self.request,

1680

gnutls.connection

1681

.X509Credentials()))

1878

session = gnutls.connection.ClientSession(

1879

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

1682

1880

1683

1881

# Note: gnutls.connection.X509Credentials is really a

1684

1882

# generic GnuTLS certificate credentials object so long as

1693

1891

priority = self.server.gnutls_priority

1694

1892

if priority is None:

1695

1893

priority = "NORMAL"

1696

(gnutls.library.functions

1697

.gnutls_priority_set_direct(session._c_object,

1698

priority, None))

1894

gnutls.library.functions.gnutls_priority_set_direct(

1895

session._c_object, priority, None)

1699

1896

1700

1897

# Start communication using the Mandos protocol

1701

1898

# Get protocol number

1721

1918

approval_required = False

1722

1919

try:

1723

1920

try:

1724

fpr = self.fingerprint(self.peer_certificate

1725

(session))

1921

fpr = self.fingerprint(

1922

self.peer_certificate(session))

1726

1923

except (TypeError,

1727

1924

gnutls.errors.GNUTLSError) as error:

1728

1925

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

1743

1940

while True:

1744

1941

if not client.enabled:

1745

1942

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

1746

client.name)

1943

client.name)

1747

1944

if self.server.use_dbus:

1748

1945

# Emit D-Bus signal

1749

1946

client.Rejected("Disabled")

1758

1955

if self.server.use_dbus:

1759

1956

# Emit D-Bus signal

1760

1957

client.NeedApproval(

1761

client.approval_delay_milliseconds(),

1762

client.approved_by_default)

1958

client.approval_delay.total_seconds()

1959

* 1000, client.approved_by_default)

1763

1960

else:

1764

1961

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

1765

1962

client.name)

1771

1968

#wait until timeout or approved

1772

1969

time = datetime.datetime.now()

1773

1970

client.changedstate.acquire()

1774

client.changedstate.wait(

1775

float(timedelta_to_milliseconds(delay)

1776

/ 1000))

1971

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

1777

1972

client.changedstate.release()

1778

1973

time2 = datetime.datetime.now()

1779

1974

if (time2 - time) >= delay:

1798

1993

logger.warning("gnutls send failed",

1799

1994

exc_info=error)

1800

1995

return

1801

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

1802

sent, len(client.secret)

1803

- (sent_size + sent))

1996

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

1997

len(client.secret) - (sent_size

1998

+ sent))

1804

1999

sent_size += sent

1805

2000

1806

2001

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

1823

2018

def peer_certificate(session):

1824

2019

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

1825

2020

# If not an OpenPGP certificate...

1826

if (gnutls.library.functions

1827

.gnutls_certificate_type_get(session._c_object)

2021

if (gnutls.library.functions.gnutls_certificate_type_get(

2022

session._c_object)

1828

2023

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1829

2024

# ...do the normal thing

1830

2025

return session.peer_certificate

1844

2039

def fingerprint(openpgp):

1845

2040

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

1846

2041

# New GnuTLS "datum" with the OpenPGP public key

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))))

2042

datum = gnutls.library.types.gnutls_datum_t(

2043

ctypes.cast(ctypes.c_char_p(openpgp),

2044

ctypes.POINTER(ctypes.c_ubyte)),

2045

ctypes.c_uint(len(openpgp)))

1852

2046

# New empty GnuTLS certificate

1853

2047

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1854

(gnutls.library.functions

1855

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

2048

gnutls.library.functions.gnutls_openpgp_crt_init(

2049

ctypes.byref(crt))

1856

2050

# Import the OpenPGP public key into the certificate

1857

(gnutls.library.functions

1858

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

1859

gnutls.library.constants

1860

.GNUTLS_OPENPGP_FMT_RAW))

2051

gnutls.library.functions.gnutls_openpgp_crt_import(

2052

crt, ctypes.byref(datum),

2053

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

1861

2054

# Verify the self signature in the key

1862

2055

crtverify = ctypes.c_uint()

1863

(gnutls.library.functions

1864

.gnutls_openpgp_crt_verify_self(crt, 0,

1865

ctypes.byref(crtverify)))

2056

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

2057

crt, 0, ctypes.byref(crtverify))

1866

2058

if crtverify.value != 0:

1867

2059

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1868

raise (gnutls.errors.CertificateSecurityError

1869

("Verify failed"))

2060

raise gnutls.errors.CertificateSecurityError(

2061

"Verify failed")

1870

2062

# New buffer for the fingerprint

1871

2063

buf = ctypes.create_string_buffer(20)

1872

2064

buf_len = ctypes.c_size_t()

1873

2065

# Get the fingerprint from the certificate into the buffer

1874

(gnutls.library.functions

1875

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

1876

ctypes.byref(buf_len)))

2066

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

2067

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

1877

2068

# Deinit the certificate

1878

2069

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1879

2070

# Convert the buffer to a Python bytestring

1885

2076

1886

2077

class MultiprocessingMixIn(object):

1887

2078

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

2079

1888

2080

def sub_process_main(self, request, address):

1889

2081

try:

1890

2082

self.finish_request(request, address)

1902

2094

1903

2095

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1904

2096

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

2097

1905

2098

def process_request(self, request, client_address):

1906

2099

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

1907

2100

1928

2121

interface: None or a network interface name (string)

1929

2122

use_ipv6: Boolean; to use IPv6 or not

1930

2123

"""

2124

1931

2125

def __init__(self, server_address, RequestHandlerClass,

1932

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

2126

interface=None,

2127

use_ipv6=True,

2128

socketfd=None):

1933

2129

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

1934

2130

creating a new one with socket.socket().

1935

2131

"""

1976

2172

self.interface)

1977

2173

else:

1978

2174

try:

1979

self.socket.setsockopt(socket.SOL_SOCKET,

1980

SO_BINDTODEVICE,

1981

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

2175

self.socket.setsockopt(

2176

socket.SOL_SOCKET, SO_BINDTODEVICE,

2177

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

1982

2178

except socket.error as error:

1983

2179

if error.errno == errno.EPERM:

1984

2180

logger.error("No permission to bind to"

2002

2198

self.server_address = (any_address,

2003

2199

self.server_address[1])

2004

2200

elif not self.server_address[1]:

2005

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

2006

0)

2201

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

2007

2202

# if self.interface:

2008

2203

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

2009

2204

# 0, # port

2023

2218

2024

2219

Assumes a gobject.MainLoop event loop.

2025

2220

"""

2221

2026

2222

def __init__(self, server_address, RequestHandlerClass,

2027

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

2028

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

2223

interface=None,

2224

use_ipv6=True,

2225

clients=None,

2226

gnutls_priority=None,

2227

use_dbus=True,

2228

socketfd=None):

2029

2229

self.enabled = False

2030

2230

self.clients = clients

2031

2231

if self.clients is None:

2037

2237

interface = interface,

2038

2238

use_ipv6 = use_ipv6,

2039

2239

socketfd = socketfd)

2240

2040

2241

def server_activate(self):

2041

2242

if self.enabled:

2042

2243

return socketserver.TCPServer.server_activate(self)

2046

2247

2047

2248

def add_pipe(self, parent_pipe, proc):

2048

2249

# Call "handle_ipc" for both data and EOF events

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))

2250

gobject.io_add_watch(

2251

parent_pipe.fileno(),

2252

gobject.IO_IN | gobject.IO_HUP,

2253

functools.partial(self.handle_ipc,

2254

parent_pipe = parent_pipe,

2255

proc = proc))

2055

2256

2056

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

2057

proc = None, client_object=None):

2257

def handle_ipc(self, source, condition,

2258

parent_pipe=None,

2259

proc = None,

2260

client_object=None):

2058

2261

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

2059

2262

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

2060

2263

# Wait for other process to exit

2083

2286

parent_pipe.send(False)

2084

2287

return False

2085

2288

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))

2289

gobject.io_add_watch(

2290

parent_pipe.fileno(),

2291

gobject.IO_IN | gobject.IO_HUP,

2292

functools.partial(self.handle_ipc,

2293

parent_pipe = parent_pipe,

2294

proc = proc,

2295

client_object = client))

2094

2296

parent_pipe.send(True)

2095

2297

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

2096

2298

# same fileno

2102

2304

2103

2305

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

2104

2306

funcname)(*args,

2105

**kwargs)))

2307

**kwargs)))

2106

2308

2107

2309

if command == 'getattr':

2108

2310

attrname = request[1]

2109

if callable(client_object.__getattribute__(attrname)):

2110

parent_pipe.send(('function',))

2311

if isinstance(client_object.__getattribute__(attrname),

2312

collections.Callable):

2313

parent_pipe.send(('function', ))

2111

2314

else:

2112

parent_pipe.send(('data', client_object

2113

.__getattribute__(attrname)))

2315

parent_pipe.send((

2316

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

2114

2317

2115

2318

if command == 'setattr':

2116

2319

attrname = request[1]

2147

2350

# avoid excessive use of external libraries.

2148

2351

2149

2352

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

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

2353

Token = collections.namedtuple("Token", (

2354

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

2355

# a "group" containing digits

2356

"value", # datetime.timedelta or None

2357

"followers")) # Tokens valid after this token

2159

2358

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

2160

2359

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

2161

2360

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

2162

2361

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

2163

2362

datetime.timedelta(seconds=1),

2164

frozenset((token_end,)))

2363

frozenset((token_end, )))

2165

2364

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

2166

2365

datetime.timedelta(minutes=1),

2167

2366

frozenset((token_second, token_end)))

2183

2382

frozenset((token_month, token_end)))

2184

2383

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

2185

2384

datetime.timedelta(weeks=1),

2186

frozenset((token_end,)))

2385

frozenset((token_end, )))

2187

2386

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

2188

2387

frozenset((token_year, token_month,

2189

2388

token_day, token_time,

2190

token_week))),

2389

token_week)))

2191

2390

# Define starting values

2192

2391

value = datetime.timedelta() # Value so far

2193

2392

found_token = None

2194

followers = frozenset(token_duration,) # Following valid tokens

2393

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

2195

2394

s = duration # String left to parse

2196

2395

# Loop until end token is found

2197

2396

while found_token is not token_end:

2214

2413

break

2215

2414

else:

2216

2415

# No currently valid tokens were found

2217

raise ValueError("Invalid RFC 3339 duration")

2416

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

2417

.format(duration))

2218

2418

# End token found

2219

2419

return value

2220

2420

2244

2444

timevalue = datetime.timedelta(0)

2245

2445

for s in interval.split():

2246

2446

try:

2247

suffix = unicode(s[-1])

2447

suffix = s[-1]

2248

2448

value = int(s[:-1])

2249

2449

if suffix == "d":

2250

2450

delta = datetime.timedelta(value)

2257

2457

elif suffix == "w":

2258

2458

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

2259

2459

else:

2260

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

2261

.format(suffix))

2460

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

2262

2461

except IndexError as e:

2263

2462

raise ValueError(*(e.args))

2264

2463

timevalue += delta

2281

2480

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

2282

2481

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

2283

2482

raise OSError(errno.ENODEV,

2284

"{0} not a character device"

2483

"{} not a character device"

2285

2484

.format(os.devnull))

2286

2485

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

2287

2486

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

2297

2496

2298

2497

parser = argparse.ArgumentParser()

2299

2498

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

2300

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

2499

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

2301

2500

help="show version number and exit")

2302

2501

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

2303

2502

help="Bind to interface IF")

2336

2535

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

2337

2536

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

2338

2537

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

2538

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

2539

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

2540

default=None)

2339

2541

2340

2542

options = parser.parse_args()

2341

2543

2350

2552

"port": "",

2351

2553

"debug": "False",

2352

2554

"priority":

2353

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

2555

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

2556

":+SIGN-DSA-SHA256",

2354

2557

"servicename": "Mandos",

2355

2558

"use_dbus": "True",

2356

2559

"use_ipv6": "True",

2359

2562

"socket": "",

2360

2563

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

2361

2564

"foreground": "False",

2362

}

2565

"zeroconf": "True",

2566

}

2363

2567

2364

2568

# Parse config file for server-global settings

2365

2569

server_config = configparser.SafeConfigParser(server_defaults)

2366

2570

del server_defaults

2367

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

2368

"mandos.conf"))

2571

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

2369

2572

# Convert the SafeConfigParser object to a dict

2370

2573

server_settings = server_config.defaults()

2371

2574

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

2389

2592

# Override the settings from the config file with command line

2390

2593

# options, if set.

2391

2594

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

2392

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

2393

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

2394

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

2595

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

2596

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

2597

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

2395

2598

value = getattr(options, option)

2396

2599

if value is not None:

2397

2600

server_settings[option] = value

2398

2601

del options

2399

2602

# Force all strings to be unicode

2400

2603

for option in server_settings.keys():

2401

if type(server_settings[option]) is str:

2402

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

2604

if isinstance(server_settings[option], bytes):

2605

server_settings[option] = (server_settings[option]

2606

.decode("utf-8"))

2403

2607

# Force all boolean options to be boolean

2404

2608

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

2405

"foreground"):

2609

"foreground", "zeroconf"):

2406

2610

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

2407

2611

# Debug implies foreground

2408

2612

if server_settings["debug"]:

2411

2615

2412

2616

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

2413

2617

2618

if (not server_settings["zeroconf"]

2619

and not (server_settings["port"]

2620

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

2621

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

2622

2414

2623

# For convenience

2415

2624

debug = server_settings["debug"]

2416

2625

debuglevel = server_settings["debuglevel"]

2419

2628

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

2420

2629

stored_state_file)

2421

2630

foreground = server_settings["foreground"]

2631

zeroconf = server_settings["zeroconf"]

2422

2632

2423

2633

if debug:

2424

2634

initlogger(debug, logging.DEBUG)

2430

2640

initlogger(debug, level)

2431

2641

2432

2642

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

2433

syslogger.setFormatter(logging.Formatter

2434

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

2435

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

2436

.format(server_settings

2437

["servicename"])))

2643

syslogger.setFormatter(

2644

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

2645

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

2646

server_settings["servicename"])))

2438

2647

2439

2648

# Parse config file with clients

2440

2649

client_config = configparser.SafeConfigParser(Client

2445

2654

global mandos_dbus_service

2446

2655

mandos_dbus_service = None

2447

2656

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))

2657

socketfd = None

2658

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

2659

socketfd = server_settings["socket"]

2660

tcp_server = MandosServer(

2661

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

2662

ClientHandler,

2663

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

2664

use_ipv6=use_ipv6,

2665

gnutls_priority=server_settings["priority"],

2666

use_dbus=use_dbus,

2667

socketfd=socketfd)

2459

2668

if not foreground:

2460

2669

pidfilename = "/run/mandos.pid"

2461

2670

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

2462

2671

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

2463

2672

pidfile = None

2464

2673

try:

2465

pidfile = open(pidfilename, "w")

2674

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

2466

2675

except IOError as e:

2467

2676

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

2468

2677

exc_info=e)

2495

2704

def debug_gnutls(level, string):

2496

2705

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

2497

2706

2498

(gnutls.library.functions

2499

.gnutls_global_set_log_function(debug_gnutls))

2707

gnutls.library.functions.gnutls_global_set_log_function(

2708

debug_gnutls)

2500

2709

2501

2710

# Redirect stdin so all checkers get /dev/null

2502

2711

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

2522

2731

if use_dbus:

2523

2732

try:

2524

2733

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

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:

2734

bus,

2735

do_not_queue=True)

2736

old_bus_name = dbus.service.BusName(

2737

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

2738

do_not_queue=True)

2739

except dbus.exceptions.DBusException as e:

2530

2740

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

2531

2741

use_dbus = False

2532

2742

server_settings["use_dbus"] = False

2533

2743

tcp_server.use_dbus = False

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"])))

2744

if zeroconf:

2745

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2746

service = AvahiServiceToSyslog(

2747

name = server_settings["servicename"],

2748

servicetype = "_mandos._tcp",

2749

protocol = protocol,

2750

bus = bus)

2751

if server_settings["interface"]:

2752

service.interface = if_nametoindex(

2753

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

2542

2754

2543

2755

global multiprocessing_manager

2544

2756

multiprocessing_manager = multiprocessing.Manager()

2563

2775

if server_settings["restore"]:

2564

2776

try:

2565

2777

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

2566

clients_data, old_client_settings = (pickle.load

2567

(stored_state))

2778

clients_data, old_client_settings = pickle.load(

2779

stored_state)

2568

2780

os.remove(stored_state_path)

2569

2781

except IOError as e:

2570

2782

if e.errno == errno.ENOENT:

2571

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

2572

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

2783

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

2784

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

2573

2785

else:

2574

2786

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

2575

2787

exc_info=e)

2576

2788

raise

2577

2789

except EOFError as e:

2578

2790

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

2579

"EOFError:", exc_info=e)

2791

"EOFError:",

2792

exc_info=e)

2580

2793

2581

2794

with PGPEngine() as pgp:

2582

for client_name, client in clients_data.iteritems():

2795

for client_name, client in clients_data.items():

2583

2796

# Skip removed clients

2584

2797

if client_name not in client_settings:

2585

2798

continue

2594

2807

# For each value in new config, check if it

2595

2808

# differs from the old config value (Except for

2596

2809

# the "secret" attribute)

2597

if (name != "secret" and

2598

value != old_client_settings[client_name]

2599

[name]):

2810

if (name != "secret"

2811

and (value !=

2812

old_client_settings[client_name][name])):

2600

2813

client[name] = value

2601

2814

except KeyError:

2602

2815

pass

2603

2816

2604

2817

# Clients who has passed its expire date can still be

2605

# enabled if its last checker was successful. Clients

2818

# enabled if its last checker was successful. A Client

2606

2819

# whose checker succeeded before we stored its state is

2607

2820

# assumed to have successfully run all checkers during

2608

2821

# downtime.

2610

2823

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

2611

2824

if not client["last_checked_ok"]:

2612

2825

logger.warning(

2613

"disabling client {0} - Client never "

2614

"performed a successful checker"

2615

.format(client_name))

2826

"disabling client {} - Client never "

2827

"performed a successful checker".format(

2828

client_name))

2616

2829

client["enabled"] = False

2617

2830

elif client["last_checker_status"] != 0:

2618

2831

logger.warning(

2619

"disabling client {0} - Client "

2620

"last checker failed with error code {1}"

2621

.format(client_name,

2622

client["last_checker_status"]))

2832

"disabling client {} - Client last"

2833

" checker failed with error code"

2834

" {}".format(

2835

client_name,

2836

client["last_checker_status"]))

2623

2837

client["enabled"] = False

2624

2838

else:

2625

client["expires"] = (datetime.datetime

2626

.utcnow()

2627

+ client["timeout"])

2839

client["expires"] = (

2840

datetime.datetime.utcnow()

2841

+ client["timeout"])

2628

2842

logger.debug("Last checker succeeded,"

2629

" keeping {0} enabled"

2630

.format(client_name))

2843

" keeping {} enabled".format(

2844

client_name))

2631

2845

try:

2632

client["secret"] = (

2633

pgp.decrypt(client["encrypted_secret"],

2634

client_settings[client_name]

2635

["secret"]))

2846

client["secret"] = pgp.decrypt(

2847

client["encrypted_secret"],

2848

client_settings[client_name]["secret"])

2636

2849

except PGPError:

2637

2850

# If decryption fails, we use secret from new settings

2638

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

2639

.format(client_name))

2640

client["secret"] = (

2641

client_settings[client_name]["secret"])

2851

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

2852

client_name))

2853

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

2854

["secret"])

2642

2855

2643

2856

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

2644

2857

for client_name in (set(old_client_settings)

2649

2862

clients_data[client_name] = client_settings[client_name]

2650

2863

2651

2864

# Create all client objects

2652

for client_name, client in clients_data.iteritems():

2865

for client_name, client in clients_data.items():

2653

2866

tcp_server.clients[client_name] = client_class(

2654

name = client_name, settings = client,

2867

name = client_name,

2868

settings = client,

2655

2869

server_settings = server_settings)

2656

2870

2657

2871

if not tcp_server.clients:

2659

2873

2660

2874

if not foreground:

2661

2875

if pidfile is not None:

2876

pid = os.getpid()

2662

2877

try:

2663

2878

with pidfile:

2664

pid = os.getpid()

2665

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

2879

print(pid, file=pidfile)

2666

2880

except IOError:

2667

2881

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

2668

2882

pidfilename, pid)

2673

2887

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

2674

2888

2675

2889

if use_dbus:

2676

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

2677

"se.bsnet.fukt.Mandos"})

2678

class MandosDBusService(DBusObjectWithProperties):

2890

2891

@alternate_dbus_interfaces(

2892

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

2893

class MandosDBusService(DBusObjectWithObjectManager):

2679

2894

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

2895

2680

2896

def __init__(self):

2681

2897

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

2898

2682

2899

_interface = "se.recompile.Mandos"

2683

2900

2684

@dbus_interface_annotations(_interface)

2685

def _foo(self):

2686

return { "org.freedesktop.DBus.Property"

2687

".EmitsChangedSignal":

2688

"false"}

2689

2690

2901

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

2691

2902

def ClientAdded(self, objpath):

2692

2903

"D-Bus signal"

2697

2908

"D-Bus signal"

2698

2909

pass

2699

2910

2911

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

2912

"true"})

2700

2913

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

2701

2914

def ClientRemoved(self, objpath, name):

2702

2915

"D-Bus signal"

2703

2916

pass

2704

2917

2918

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

2919

"true"})

2705

2920

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

2706

2921

def GetAllClients(self):

2707

2922

"D-Bus method"

2708

return dbus.Array(c.dbus_object_path

2709

for c in

2923

return dbus.Array(c.dbus_object_path for c in

2710

2924

tcp_server.clients.itervalues())

2711

2925

2926

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

2927

"true"})

2712

2928

@dbus.service.method(_interface,

2713

2929

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

2714

2930

def GetAllClientsWithProperties(self):

2715

2931

"D-Bus method"

2716

2932

return dbus.Dictionary(

2717

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

2718

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

2933

{ c.dbus_object_path: c.GetAll(

2934

"se.recompile.Mandos.Client")

2935

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

2719

2936

signature="oa{sv}")

2720

2937

2721

2938

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

2725

2942

if c.dbus_object_path == object_path:

2726

2943

del tcp_server.clients[c.name]

2727

2944

c.remove_from_connection()

2728

# Don't signal anything except ClientRemoved

2945

# Don't signal the disabling

2729

2946

c.disable(quiet=True)

2730

# Emit D-Bus signal

2731

self.ClientRemoved(object_path, c.name)

2947

# Emit D-Bus signal for removal

2948

self.client_removed_signal(c)

2732

2949

return

2733

2950

raise KeyError(object_path)

2734

2951

2735

2952

del _interface

2953

2954

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

2955

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

2956

def GetManagedObjects(self):

2957

"""D-Bus method"""

2958

return dbus.Dictionary(

2959

{ client.dbus_object_path:

2960

dbus.Dictionary(

2961

{ interface: client.GetAll(interface)

2962

for interface in

2963

client._get_all_interface_names()})

2964

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

2965

2966

def client_added_signal(self, client):

2967

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

2968

if use_dbus:

2969

# New standard signal

2970

self.InterfacesAdded(

2971

client.dbus_object_path,

2972

dbus.Dictionary(

2973

{ interface: client.GetAll(interface)

2974

for interface in

2975

client._get_all_interface_names()}))

2976

# Old signal

2977

self.ClientAdded(client.dbus_object_path)

2978

2979

def client_removed_signal(self, client):

2980

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

2981

if use_dbus:

2982

# New standard signal

2983

self.InterfacesRemoved(

2984

client.dbus_object_path,

2985

client._get_all_interface_names())

2986

# Old signal

2987

self.ClientRemoved(client.dbus_object_path,

2988

client.name)

2736

2989

2737

2990

mandos_dbus_service = MandosDBusService()

2738

2991

2739

2992

def cleanup():

2740

2993

"Cleanup function; run on exit"

2741

service.cleanup()

2994

if zeroconf:

2995

service.cleanup()

2742

2996

2743

2997

multiprocessing.active_children()

2744

2998

wnull.close()

2758

3012

2759

3013

# A list of attributes that can not be pickled

2760

3014

# + secret.

2761

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

2762

"checker", "server_settings"))

2763

for name, typ in (inspect.getmembers

2764

(dbus.service.Object)):

3015

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

3016

"checker", "server_settings" }

3017

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

3018

.Object):

2765

3019

exclude.add(name)

2766

3020

2767

3021

client_dict["encrypted_secret"] = (client

2774

3028

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

2775

3029

2776

3030

try:

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:

3031

with tempfile.NamedTemporaryFile(

3032

mode='wb',

3033

suffix=".pickle",

3034

prefix='clients-',

3035

dir=os.path.dirname(stored_state_path),

3036

delete=False) as stored_state:

2781

3037

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

2782

tempname=stored_state.name

3038

tempname = stored_state.name

2783

3039

os.rename(tempname, stored_state_path)

2784

3040

except (IOError, OSError) as e:

2785

3041

if not debug:

2788

3044

except NameError:

2789

3045

pass

2790

3046

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

2791

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

3047

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

2792

3048

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

2793

3049

else:

2794

3050

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

2800

3056

name, client = tcp_server.clients.popitem()

2801

3057

if use_dbus:

2802

3058

client.remove_from_connection()

2803

# Don't signal anything except ClientRemoved

3059

# Don't signal the disabling

2804

3060

client.disable(quiet=True)

2805

if use_dbus:

2806

# Emit D-Bus signal

2807

mandos_dbus_service.ClientRemoved(client

2808

.dbus_object_path,

2809

client.name)

3061

# Emit D-Bus signal for removal

3062

mandos_dbus_service.client_removed_signal(client)

2810

3063

client_settings.clear()

2811

3064

2812

3065

atexit.register(cleanup)

2813

3066

2814

3067

for client in tcp_server.clients.itervalues():

2815

3068

if use_dbus:

2816

# Emit D-Bus signal

2817

mandos_dbus_service.ClientAdded(client.dbus_object_path)

3069

# Emit D-Bus signal for adding

3070

mandos_dbus_service.client_added_signal(client)

2818

3071

# Need to initiate checking of clients

2819

3072

if client.enabled:

2820

3073

client.init_checker()

2823

3076

tcp_server.server_activate()

2824

3077

2825

3078

# Find out what port we got

2826

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

3079

if zeroconf:

3080

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

2827

3081

if use_ipv6:

2828

3082

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

2829

3083

" flowinfo %d, scope_id %d",

2835

3089

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

2836

3090

2837

3091

try:

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

3092

if zeroconf:

3093

# From the Avahi example code

3094

try:

3095

service.activate()

3096

except dbus.exceptions.DBusException as error:

3097

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

3098

cleanup()

3099

sys.exit(1)

3100

# End of Avahi example code

2846

3101

2847

3102

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

2848

3103

lambda *args, **kwargs:

2863

3118

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

2864

3119

cleanup()

2865

3120

3121

2866

3122

if __name__ == '__main__':

2867

3123

main()