/mandos/release : revision 237.7.195

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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__ import (division, absolute_import, print_function,

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unicode_literals)

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try:

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from future_builtins import *

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except ImportError:

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pass

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from future_builtins import *

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try:

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import SocketServer as socketserver

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except ImportError:

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import socketserver

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import SocketServer as socketserver

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import socket

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import argparse

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import datetime

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import errno

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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 gnutls.crypto

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import gnutls.connection

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import gnutls.errors

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import gnutls.library.functions

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import gnutls.library.constants

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import gnutls.library.types

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import ConfigParser as configparser

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import sys

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import re

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import os

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import struct

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import fcntl

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import functools

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try:

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import cPickle as pickle

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except ImportError:

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import pickle

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import cPickle as pickle

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import multiprocessing

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import types

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import binascii

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import tempfile

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import itertools

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import collections

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import codecs

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import dbus

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import dbus.service

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from gi.repository import GLib

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import gobject

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import avahi

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from dbus.mainloop.glib import DBusGMainLoop

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import ctypes

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import ctypes.util

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except ImportError:

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SO_BINDTODEVICE = None

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if sys.version_info.major == 2:

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str = unicode

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version = "1.7.6"

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version = "1.6.2"

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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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syslogger = (logging.handlers.SysLogHandler

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(facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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

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try:

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if_nametoindex = ctypes.cdll.LoadLibrary(

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

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if_nametoindex = (ctypes.cdll.LoadLibrary

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

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.if_nametoindex)

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except (OSError, AttributeError):

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def if_nametoindex(interface):

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

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

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

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ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

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

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

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

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interface))

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

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ifreq[16:20])[0]

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return interface_index

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def copy_function(func):

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"""Make a copy of a function"""

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if sys.version_info.major == 2:

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return types.FunctionType(func.func_code,

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func.func_globals,

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func.func_name,

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func.func_defaults,

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func.func_closure)

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else:

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return types.FunctionType(func.__code__,

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func.__globals__,

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func.__name__,

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func.__defaults__,

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func.__closure__)

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

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"""init logger and add loglevel"""

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global syslogger

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syslogger = (logging.handlers.SysLogHandler(

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facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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address = "/dev/log"))

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syslogger.setFormatter(logging.Formatter

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

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' %(message)s'))

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class PGPEngine(object):

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

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def __init__(self):

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

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self.gpg = "gpg"

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try:

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

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for line in output.splitlines():

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

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if name == "gpg":

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self.gpg = path

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break

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except OSError as e:

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if e.errno != errno.ENOENT:

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raise

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self.gnupgargs = ['--batch',

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'--homedir', self.tempdir,

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'--home', self.tempdir,

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'--force-mdc',

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'--quiet',

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'--no-use-agent']

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def encrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(

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dir=self.tempdir) as passfile:

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with tempfile.NamedTemporaryFile(dir=self.tempdir

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) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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

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'--passphrase-file',

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passfile.name]

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+ self.gnupgargs,

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def decrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(

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dir = self.tempdir) as passfile:

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with tempfile.NamedTemporaryFile(dir = self.tempdir

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) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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

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'--passphrase-file',

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passfile.name]

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+ self.gnupgargs,

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stdin = subprocess.PIPE,

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stdout = subprocess.PIPE,

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stderr = subprocess.PIPE)

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

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decrypted_plaintext, err = proc.communicate(input

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= data)

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if proc.returncode != 0:

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raise PGPError(err)

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return decrypted_plaintext

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# Pretend that we have an Avahi module

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class Avahi(object):

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

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

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

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

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PROTO_INET = 0 # avahi-common/address.h

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PROTO_INET6 = 1 # avahi-common/address.h

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DBUS_NAME = "org.freedesktop.Avahi"

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DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"

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DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"

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DBUS_PATH_SERVER = "/"

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def string_array_to_txt_array(self, t):

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

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

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ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h

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ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h

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ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h

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SERVER_INVALID = 0 # avahi-common/defs.h

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SERVER_REGISTERING = 1 # avahi-common/defs.h

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SERVER_RUNNING = 2 # avahi-common/defs.h

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SERVER_COLLISION = 3 # avahi-common/defs.h

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SERVER_FAILURE = 4 # avahi-common/defs.h

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avahi = Avahi()

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class AvahiError(Exception):

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

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self.value = value

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

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**kwargs)

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

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def __unicode__(self):

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return unicode(repr(self.value))

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class AvahiServiceError(AvahiError):

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pass

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class AvahiGroupError(AvahiError):

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pass

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bus: dbus.SystemBus()

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"""

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def __init__(self,

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interface = avahi.IF_UNSPEC,

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name = None,

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servicetype = None,

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port = None,

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TXT = None,

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domain = "",

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host = "",

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max_renames = 32768,

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protocol = avahi.PROTO_UNSPEC,

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bus = None):

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

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

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

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protocol = avahi.PROTO_UNSPEC, bus = None):

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self.interface = interface

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self.name = name

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self.type = servicetype

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self.bus = bus

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self.entry_group_state_changed_match = None

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def rename(self, remove=True):

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def rename(self):

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

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if self.rename_count >= self.max_renames:

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

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" after %i retries, exiting.",

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self.rename_count)

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raise AvahiServiceError("Too many renames")

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self.name = str(

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self.server.GetAlternativeServiceName(self.name))

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self.rename_count += 1

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self.name = unicode(self.server

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.GetAlternativeServiceName(self.name))

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

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self.name)

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if remove:

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self.remove()

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self.remove()

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

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if (error.get_dbus_name()

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

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

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return self.rename(remove=False)

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else:

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

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self.cleanup()

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os._exit(1)

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

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self.cleanup()

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os._exit(1)

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self.rename_count += 1

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def remove(self):

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

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

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

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str(error))

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

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unicode(error))

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

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.format(error))

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def cleanup(self):

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

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

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

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

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bad_states = {

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avahi.SERVER_INVALID: "Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION: "Zeroconf server name collision",

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avahi.SERVER_FAILURE: "Zeroconf server failure",

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}

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bad_states = { avahi.SERVER_INVALID:

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"Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION:

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"Zeroconf server name collision",

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avahi.SERVER_FAILURE:

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"Zeroconf server failure" }

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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

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

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self.cleanup()

441

369

elif state == avahi.SERVER_RUNNING:

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

445

if (error.get_dbus_name()

446

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

447

logger.info("Local Zeroconf service name"

448

" collision.")

449

return self.rename(remove=False)

450

else:

451

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

452

self.cleanup()

453

os._exit(1)

370

self.add()

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371

else:

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if error is None:

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

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383

follow_name_owner_changes=True),

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384

avahi.DBUS_INTERFACE_SERVER)

468

385

self.server.connect_to_signal("StateChanged",

469

self.server_state_changed)

386

self.server_state_changed)

470

387

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

471

388

472

389

473

390

class AvahiServiceToSyslog(AvahiService):

474

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

391

def rename(self):

475

392

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

476

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

477

syslogger.setFormatter(logging.Formatter(

478

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

479

.format(self.name)))

393

ret = AvahiService.rename(self)

394

syslogger.setFormatter(logging.Formatter

395

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

396

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

397

.format(self.name)))

480

398

return ret

481

399

482

# Pretend that we have a GnuTLS module

483

class GnuTLS(object):

484

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

485

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

486

487

_library = ctypes.cdll.LoadLibrary(

488

ctypes.util.find_library("gnutls"))

489

_need_version = b"3.3.0"

490

def __init__(self):

491

# Need to use class name "GnuTLS" here, since this method is

492

# called before the assignment to the "gnutls" global variable

493

# happens.

494

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

495

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

496

.format(self._need_version))

497

498

# Unless otherwise indicated, the constants and types below are

499

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

500

501

# Constants

502

E_SUCCESS = 0

503

E_INTERRUPTED = -52

504

E_AGAIN = -28

505

CRT_OPENPGP = 2

506

CLIENT = 2

507

SHUT_RDWR = 0

508

CRD_CERTIFICATE = 1

509

E_NO_CERTIFICATE_FOUND = -49

510

OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h

511

512

# Types

513

class session_int(ctypes.Structure):

514

_fields_ = []

515

session_t = ctypes.POINTER(session_int)

516

class certificate_credentials_st(ctypes.Structure):

517

_fields_ = []

518

certificate_credentials_t = ctypes.POINTER(

519

certificate_credentials_st)

520

certificate_type_t = ctypes.c_int

521

class datum_t(ctypes.Structure):

522

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

523

('size', ctypes.c_uint)]

524

class openpgp_crt_int(ctypes.Structure):

525

_fields_ = []

526

openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)

527

openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h

528

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

529

credentials_type_t = ctypes.c_int

530

transport_ptr_t = ctypes.c_void_p

531

close_request_t = ctypes.c_int

532

533

# Exceptions

534

class Error(Exception):

535

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

536

# exception might be raised from within GnuTLS.__init__,

537

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

538

# global variable has happened.

539

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

540

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

541

# code is passed, convert it to a string with

542

# gnutls.strerror()

543

self.code = code

544

if message is None and code is not None:

545

message = GnuTLS.strerror(code)

546

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

547

message, *args)

548

549

class CertificateSecurityError(Error):

550

pass

551

552

# Classes

553

class Credentials(object):

554

def __init__(self):

555

self._c_object = gnutls.certificate_credentials_t()

556

gnutls.certificate_allocate_credentials(

557

ctypes.byref(self._c_object))

558

self.type = gnutls.CRD_CERTIFICATE

559

560

def __del__(self):

561

gnutls.certificate_free_credentials(self._c_object)

562

563

class ClientSession(object):

564

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

565

self._c_object = gnutls.session_t()

566

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

567

gnutls.set_default_priority(self._c_object)

568

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

569

gnutls.handshake_set_private_extensions(self._c_object,

570

True)

571

self.socket = socket

572

if credentials is None:

573

credentials = gnutls.Credentials()

574

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

575

ctypes.cast(credentials._c_object,

576

ctypes.c_void_p))

577

self.credentials = credentials

578

579

def __del__(self):

580

gnutls.deinit(self._c_object)

581

582

def handshake(self):

583

return gnutls.handshake(self._c_object)

584

585

def send(self, data):

586

data = bytes(data)

587

data_len = len(data)

588

while data_len > 0:

589

data_len -= gnutls.record_send(self._c_object,

590

data[-data_len:],

591

data_len)

592

593

def bye(self):

594

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

595

596

# Error handling functions

597

def _error_code(result):

598

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

599

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

600

if result >= 0:

601

return result

602

if result == gnutls.E_NO_CERTIFICATE_FOUND:

603

raise gnutls.CertificateSecurityError(code = result)

604

raise gnutls.Error(code = result)

605

606

def _retry_on_error(result, func, arguments):

607

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

608

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

609

while result < 0:

610

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

611

return _error_code(result)

612

result = func(*arguments)

613

return result

614

615

# Unless otherwise indicated, the function declarations below are

616

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

617

618

# Functions

619

priority_set_direct = _library.gnutls_priority_set_direct

620

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

621

ctypes.POINTER(ctypes.c_char_p)]

622

priority_set_direct.restype = _error_code

623

624

init = _library.gnutls_init

625

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

626

init.restype = _error_code

627

628

set_default_priority = _library.gnutls_set_default_priority

629

set_default_priority.argtypes = [session_t]

630

set_default_priority.restype = _error_code

631

632

record_send = _library.gnutls_record_send

633

record_send.argtypes = [session_t, ctypes.c_void_p,

634

ctypes.c_size_t]

635

record_send.restype = ctypes.c_ssize_t

636

record_send.errcheck = _retry_on_error

637

638

certificate_allocate_credentials = (

639

_library.gnutls_certificate_allocate_credentials)

640

certificate_allocate_credentials.argtypes = [

641

ctypes.POINTER(certificate_credentials_t)]

642

certificate_allocate_credentials.restype = _error_code

643

644

certificate_free_credentials = (

645

_library.gnutls_certificate_free_credentials)

646

certificate_free_credentials.argtypes = [certificate_credentials_t]

647

certificate_free_credentials.restype = None

648

649

handshake_set_private_extensions = (

650

_library.gnutls_handshake_set_private_extensions)

651

handshake_set_private_extensions.argtypes = [session_t,

652

ctypes.c_int]

653

handshake_set_private_extensions.restype = None

654

655

credentials_set = _library.gnutls_credentials_set

656

credentials_set.argtypes = [session_t, credentials_type_t,

657

ctypes.c_void_p]

658

credentials_set.restype = _error_code

659

660

strerror = _library.gnutls_strerror

661

strerror.argtypes = [ctypes.c_int]

662

strerror.restype = ctypes.c_char_p

663

664

certificate_type_get = _library.gnutls_certificate_type_get

665

certificate_type_get.argtypes = [session_t]

666

certificate_type_get.restype = _error_code

667

668

certificate_get_peers = _library.gnutls_certificate_get_peers

669

certificate_get_peers.argtypes = [session_t,

670

ctypes.POINTER(ctypes.c_uint)]

671

certificate_get_peers.restype = ctypes.POINTER(datum_t)

672

673

global_set_log_level = _library.gnutls_global_set_log_level

674

global_set_log_level.argtypes = [ctypes.c_int]

675

global_set_log_level.restype = None

676

677

global_set_log_function = _library.gnutls_global_set_log_function

678

global_set_log_function.argtypes = [log_func]

679

global_set_log_function.restype = None

680

681

deinit = _library.gnutls_deinit

682

deinit.argtypes = [session_t]

683

deinit.restype = None

684

685

handshake = _library.gnutls_handshake

686

handshake.argtypes = [session_t]

687

handshake.restype = _error_code

688

handshake.errcheck = _retry_on_error

689

690

transport_set_ptr = _library.gnutls_transport_set_ptr

691

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

692

transport_set_ptr.restype = None

693

694

bye = _library.gnutls_bye

695

bye.argtypes = [session_t, close_request_t]

696

bye.restype = _error_code

697

bye.errcheck = _retry_on_error

698

699

check_version = _library.gnutls_check_version

700

check_version.argtypes = [ctypes.c_char_p]

701

check_version.restype = ctypes.c_char_p

702

703

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

704

705

openpgp_crt_init = _library.gnutls_openpgp_crt_init

706

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

707

openpgp_crt_init.restype = _error_code

708

709

openpgp_crt_import = _library.gnutls_openpgp_crt_import

710

openpgp_crt_import.argtypes = [openpgp_crt_t,

711

ctypes.POINTER(datum_t),

712

openpgp_crt_fmt_t]

713

openpgp_crt_import.restype = _error_code

714

715

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

716

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

717

ctypes.POINTER(ctypes.c_uint)]

718

openpgp_crt_verify_self.restype = _error_code

719

720

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

721

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

722

openpgp_crt_deinit.restype = None

723

724

openpgp_crt_get_fingerprint = (

725

_library.gnutls_openpgp_crt_get_fingerprint)

726

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

727

ctypes.c_void_p,

728

ctypes.POINTER(

729

ctypes.c_size_t)]

730

openpgp_crt_get_fingerprint.restype = _error_code

731

732

# Remove non-public functions

733

del _error_code, _retry_on_error

734

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

735

gnutls = GnuTLS()

736

737

def call_pipe(connection, # : multiprocessing.Connection

738

func, *args, **kwargs):

739

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

740

741

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

742

return value on the provided multiprocessing.Connection.

743

"""

744

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

745

connection.close()

400

401

def timedelta_to_milliseconds(td):

402

"Convert a datetime.timedelta() to milliseconds"

403

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

404

+ (td.seconds * 1000)

405

+ (td.microseconds // 1000))

406

746

407

747

408

class Client(object):

748

409

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

754

415

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

755

416

to see if the client lives.

756

417

'None' if no process is running.

757

checker_callback_tag: a GLib event source tag, or None

418

checker_callback_tag: a gobject event source tag, or None

758

419

checker_command: string; External command which is run to check

759

420

if client lives. %() expansions are done at

760

421

runtime with vars(self) as dict, so that for

761

422

instance %(name)s can be used in the command.

762

checker_initiator_tag: a GLib event source tag, or None

423

checker_initiator_tag: a gobject event source tag, or None

763

424

created: datetime.datetime(); (UTC) object creation

764

425

client_structure: Object describing what attributes a client has

765

426

and is used for storing the client at exit

766

427

current_checker_command: string; current running checker_command

767

disable_initiator_tag: a GLib event source tag, or None

428

disable_initiator_tag: a gobject event source tag, or None

768

429

enabled: bool()

769

430

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

770

431

uniquely identify the client

775

436

last_checker_status: integer between 0 and 255 reflecting exit

776

437

status of last checker. -1 reflects crashed

777

438

checker, -2 means no checker completed yet.

778

last_checker_signal: The signal which killed the last checker, if

779

last_checker_status is -1

780

439

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

781

440

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

782

441

D-Bus identifiers

795

454

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

796

455

"last_approval_request", "last_checked_ok",

797

456

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

798

client_defaults = {

799

"timeout": "PT5M",

800

"extended_timeout": "PT15M",

801

"interval": "PT2M",

802

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

803

"host": "",

804

"approval_delay": "PT0S",

805

"approval_duration": "PT1S",

806

"approved_by_default": "True",

807

"enabled": "True",

808

}

457

client_defaults = { "timeout": "PT5M",

458

"extended_timeout": "PT15M",

459

"interval": "PT2M",

460

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

461

"host": "",

462

"approval_delay": "PT0S",

463

"approval_duration": "PT1S",

464

"approved_by_default": "True",

465

"enabled": "True",

466

}

467

468

def timeout_milliseconds(self):

469

"Return the 'timeout' attribute in milliseconds"

470

return timedelta_to_milliseconds(self.timeout)

471

472

def extended_timeout_milliseconds(self):

473

"Return the 'extended_timeout' attribute in milliseconds"

474

return timedelta_to_milliseconds(self.extended_timeout)

475

476

def interval_milliseconds(self):

477

"Return the 'interval' attribute in milliseconds"

478

return timedelta_to_milliseconds(self.interval)

479

480

def approval_delay_milliseconds(self):

481

return timedelta_to_milliseconds(self.approval_delay)

809

482

810

483

@staticmethod

811

484

def config_parser(config):

827

500

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

828

501

"enabled")

829

502

830

# Uppercase and remove spaces from fingerprint for later

831

# comparison purposes with return value from the

832

# fingerprint() function

833

503

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

834

504

.replace(" ", ""))

835

505

if "secret" in section:

836

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

837

.encode("utf-8"),

838

"base64")

506

client["secret"] = section["secret"].decode("base64")

839

507

elif "secfile" in section:

840

508

with open(os.path.expanduser(os.path.expandvars

841

509

(section["secfile"])),

842

510

"rb") as secfile:

843

511

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

844

512

else:

845

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

513

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

846

514

.format(section))

847

515

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

848

516

client["extended_timeout"] = string_to_delta(

865

533

server_settings = {}

866

534

self.server_settings = server_settings

867

535

# adding all client settings

868

for setting, value in settings.items():

536

for setting, value in settings.iteritems():

869

537

setattr(self, setting, value)

870

538

871

539

if self.enabled:

879

547

self.expires = None

880

548

881

549

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

550

# Uppercase and remove spaces from fingerprint for later

551

# comparison purposes with return value from the fingerprint()

552

# function

882

553

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

883

554

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

884

555

datetime.datetime.utcnow())

891

562

self.current_checker_command = None

892

563

self.approved = None

893

564

self.approvals_pending = 0

894

self.changedstate = multiprocessing_manager.Condition(

895

multiprocessing_manager.Lock())

896

self.client_structure = [attr

897

for attr in self.__dict__.keys()

565

self.changedstate = (multiprocessing_manager

566

.Condition(multiprocessing_manager

567

.Lock()))

568

self.client_structure = [attr for attr in

569

self.__dict__.iterkeys()

898

570

if not attr.startswith("_")]

899

571

self.client_structure.append("client_structure")

900

572

901

for name, t in inspect.getmembers(

902

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

573

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

574

lambda obj:

575

isinstance(obj,

576

property)):

903

577

if not name.startswith("_"):

904

578

self.client_structure.append(name)

905

579

926

600

if not quiet:

927

601

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

928

602

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

929

GLib.source_remove(self.disable_initiator_tag)

603

gobject.source_remove(self.disable_initiator_tag)

930

604

self.disable_initiator_tag = None

931

605

self.expires = None

932

606

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

933

GLib.source_remove(self.checker_initiator_tag)

607

gobject.source_remove(self.checker_initiator_tag)

934

608

self.checker_initiator_tag = None

935

609

self.stop_checker()

936

610

self.enabled = False

937

611

if not quiet:

938

612

self.send_changedstate()

939

# Do not run this again if called by a GLib.timeout_add

613

# Do not run this again if called by a gobject.timeout_add

940

614

return False

941

615

942

616

def __del__(self):

946

620

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

947

621

# and every interval from then on.

948

622

if self.checker_initiator_tag is not None:

949

GLib.source_remove(self.checker_initiator_tag)

950

self.checker_initiator_tag = GLib.timeout_add(

951

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

952

self.start_checker)

623

gobject.source_remove(self.checker_initiator_tag)

624

self.checker_initiator_tag = (gobject.timeout_add

625

(self.interval_milliseconds(),

626

self.start_checker))

953

627

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

954

628

if self.disable_initiator_tag is not None:

955

GLib.source_remove(self.disable_initiator_tag)

956

self.disable_initiator_tag = GLib.timeout_add(

957

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

629

gobject.source_remove(self.disable_initiator_tag)

630

self.disable_initiator_tag = (gobject.timeout_add

631

(self.timeout_milliseconds(),

632

self.disable))

958

633

# Also start a new checker *right now*.

959

634

self.start_checker()

960

635

961

def checker_callback(self, source, condition, connection,

962

command):

636

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

963

637

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

964

638

self.checker_callback_tag = None

965

639

self.checker = None

966

# Read return code from connection (see call_pipe)

967

returncode = connection.recv()

968

connection.close()

969

970

if returncode >= 0:

971

self.last_checker_status = returncode

972

self.last_checker_signal = None

640

if os.WIFEXITED(condition):

641

self.last_checker_status = os.WEXITSTATUS(condition)

973

642

if self.last_checker_status == 0:

974

643

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

975

644

vars(self))

976

645

self.checked_ok()

977

646

else:

978

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

647

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

648

vars(self))

979

649

else:

980

650

self.last_checker_status = -1

981

self.last_checker_signal = -returncode

982

651

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

983

652

vars(self))

984

return False

985

653

986

654

def checked_ok(self):

987

655

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

988

656

self.last_checked_ok = datetime.datetime.utcnow()

989

657

self.last_checker_status = 0

990

self.last_checker_signal = None

991

658

self.bump_timeout()

992

659

993

660

def bump_timeout(self, timeout=None):

995

662

if timeout is None:

996

663

timeout = self.timeout

997

664

if self.disable_initiator_tag is not None:

998

GLib.source_remove(self.disable_initiator_tag)

665

gobject.source_remove(self.disable_initiator_tag)

999

666

self.disable_initiator_tag = None

1000

667

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

1001

self.disable_initiator_tag = GLib.timeout_add(

1002

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

668

self.disable_initiator_tag = (gobject.timeout_add

669

(timedelta_to_milliseconds

670

(timeout), self.disable))

1003

671

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

1004

672

1005

673

def need_approval(self):

1019

687

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

1020

688

# should be.

1021

689

1022

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

1023

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

1024

self.checker.join()

1025

self.checker = None

690

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

691

try:

692

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

693

except AttributeError:

694

pass

695

except OSError as error:

696

if error.errno != errno.ECHILD:

697

raise

698

else:

699

if pid:

700

logger.warning("Checker was a zombie")

701

gobject.source_remove(self.checker_callback_tag)

702

self.checker_callback(pid, status,

703

self.current_checker_command)

1026

704

# Start a new checker if needed

1027

705

if self.checker is None:

1028

706

# Escape attributes for the shell

1029

escaped_attrs = {

1030

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

1031

for attr in self.runtime_expansions }

707

escaped_attrs = dict(

708

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

709

for attr in

710

self.runtime_expansions)

1032

711

try:

1033

712

command = self.checker_command % escaped_attrs

1034

713

except TypeError as error:

1035

714

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

1036

self.checker_command,

715

self.checker_command, exc_info=error)

716

return True # Try again later

717

self.current_checker_command = command

718

try:

719

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

720

command, self.name)

721

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

722

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

723

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

724

# always replaced by /dev/null.)

725

# The exception is when not debugging but nevertheless

726

# running in the foreground; use the previously

727

# created wnull.

728

popen_args = {}

729

if (not self.server_settings["debug"]

730

and self.server_settings["foreground"]):

731

popen_args.update({"stdout": wnull,

732

"stderr": wnull })

733

self.checker = subprocess.Popen(command,

734

close_fds=True,

735

shell=True, cwd="/",

736

**popen_args)

737

except OSError as error:

738

logger.error("Failed to start subprocess",

1037

739

exc_info=error)

1038

return True # Try again later

1039

self.current_checker_command = command

1040

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

1041

self.name)

1042

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

1043

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

1044

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

1045

# always replaced by /dev/null.)

1046

# The exception is when not debugging but nevertheless

1047

# running in the foreground; use the previously

1048

# created wnull.

1049

popen_args = { "close_fds": True,

1050

"shell": True,

1051

"cwd": "/" }

1052

if (not self.server_settings["debug"]

1053

and self.server_settings["foreground"]):

1054

popen_args.update({"stdout": wnull,

1055

"stderr": wnull })

1056

pipe = multiprocessing.Pipe(duplex = False)

1057

self.checker = multiprocessing.Process(

1058

target = call_pipe,

1059

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

1060

kwargs = popen_args)

1061

self.checker.start()

1062

self.checker_callback_tag = GLib.io_add_watch(

1063

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

1064

self.checker_callback, pipe[0], command)

1065

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

740

return True

741

self.checker_callback_tag = (gobject.child_watch_add

742

(self.checker.pid,

743

self.checker_callback,

744

data=command))

745

# The checker may have completed before the gobject

746

# watch was added. Check for this.

747

try:

748

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

749

except OSError as error:

750

if error.errno == errno.ECHILD:

751

# This should never happen

752

logger.error("Child process vanished",

753

exc_info=error)

754

return True

755

raise

756

if pid:

757

gobject.source_remove(self.checker_callback_tag)

758

self.checker_callback(pid, status, command)

759

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

1066

760

return True

1067

761

1068

762

def stop_checker(self):

1069

763

"""Force the checker process, if any, to stop."""

1070

764

if self.checker_callback_tag:

1071

GLib.source_remove(self.checker_callback_tag)

765

gobject.source_remove(self.checker_callback_tag)

1072

766

self.checker_callback_tag = None

1073

767

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

1074

768

return

1075

769

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

1076

self.checker.terminate()

770

try:

771

self.checker.terminate()

772

#time.sleep(0.5)

773

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

774

# self.checker.kill()

775

except OSError as error:

776

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

777

raise

1077

778

self.checker = None

1078

779

1079

780

1080

def dbus_service_property(dbus_interface,

1081

signature="v",

1082

access="readwrite",

1083

byte_arrays=False):

781

def dbus_service_property(dbus_interface, signature="v",

782

access="readwrite", byte_arrays=False):

1084

783

"""Decorators for marking methods of a DBusObjectWithProperties to

1085

784

become properties on the D-Bus.

1086

785

1095

794

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

1096

795

if byte_arrays and signature != "ay":

1097

796

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

1098

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

1099

797

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

1100

798

def decorator(func):

1101

799

func._dbus_is_property = True

1102

800

func._dbus_interface = dbus_interface

1107

805

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

1108

806

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

1109

807

return func

1110

1111

808

return decorator

1112

809

1113

810

1122

819

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

1123

820

"false"}

1124

821

"""

1125

1126

822

def decorator(func):

1127

823

func._dbus_is_interface = True

1128

824

func._dbus_interface = dbus_interface

1129

825

func._dbus_name = dbus_interface

1130

826

return func

1131

1132

827

return decorator

1133

828

1134

829

1136

831

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

1137

832

Usage:

1138

833

1139

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

1140

"org.freedesktop.DBus.Property."

1141

"EmitsChangedSignal": "false"})

1142

834

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

1143

835

access="r")

836

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

837

"org.freedesktop.DBus.Property."

838

"EmitsChangedSignal": "false"})

1144

839

def Property_dbus_property(self):

1145

840

return dbus.Boolean(False)

1146

1147

See also the DBusObjectWithAnnotations class.

1148

841

"""

1149

1150

842

def decorator(func):

1151

843

func._dbus_annotations = annotations

1152

844

return func

1153

1154

845

return decorator

1155

846

1156

847

1157

848

class DBusPropertyException(dbus.exceptions.DBusException):

1158

849

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

1159

850

"""

1160

pass

851

def __unicode__(self):

852

return unicode(str(self))

1161

853

1162

854

1163

855

class DBusPropertyAccessException(DBusPropertyException):

1172

864

pass

1173

865

1174

866

1175

class DBusObjectWithAnnotations(dbus.service.Object):

1176

"""A D-Bus object with annotations.

867

class DBusObjectWithProperties(dbus.service.Object):

868

"""A D-Bus object with properties.

1177

869

1178

Classes inheriting from this can use the dbus_annotations

1179

decorator to add annotations to methods or signals.

870

Classes inheriting from this can use the dbus_service_property

871

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

872

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

1180

873

"""

1181

874

1182

875

@staticmethod

1186

879

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

1187

880

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

1188

881

"""

1189

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

882

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

1190

883

False)

1191

884

1192

885

def _get_all_dbus_things(self, thing):

1193

886

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

1194

887

"""

1195

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

888

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

889

name),

1196

890

athing.__get__(self))

1197

891

for cls in self.__class__.__mro__

1198

892

for name, athing in

1199

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

1200

1201

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1202

out_signature = "s",

1203

path_keyword = 'object_path',

1204

connection_keyword = 'connection')

1205

def Introspect(self, object_path, connection):

1206

"""Overloading of standard D-Bus method.

1207

1208

Inserts annotation tags on methods and signals.

1209

"""

1210

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

1211

connection)

1212

try:

1213

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

1214

1215

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

1216

# Add annotation tags

1217

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

1218

for tag in if_tag.getElementsByTagName(typ):

1219

annots = dict()

1220

for name, prop in (self.

1221

_get_all_dbus_things(typ)):

1222

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

1223

and prop._dbus_interface

1224

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

1225

annots.update(getattr(

1226

prop, "_dbus_annotations", {}))

1227

for name, value in annots.items():

1228

ann_tag = document.createElement(

1229

"annotation")

1230

ann_tag.setAttribute("name", name)

1231

ann_tag.setAttribute("value", value)

1232

tag.appendChild(ann_tag)

1233

# Add interface annotation tags

1234

for annotation, value in dict(

1235

itertools.chain.from_iterable(

1236

annotations().items()

1237

for name, annotations

1238

in self._get_all_dbus_things("interface")

1239

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

1240

)).items():

1241

ann_tag = document.createElement("annotation")

1242

ann_tag.setAttribute("name", annotation)

1243

ann_tag.setAttribute("value", value)

1244

if_tag.appendChild(ann_tag)

1245

# Fix argument name for the Introspect method itself

1246

if (if_tag.getAttribute("name")

1247

== dbus.INTROSPECTABLE_IFACE):

1248

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

1249

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

1250

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

1251

if (arg.getAttribute("direction")

1252

== "out"):

1253

arg.setAttribute("name",

1254

"xml_data")

1255

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

1256

document.unlink()

1257

except (AttributeError, xml.dom.DOMException,

1258

xml.parsers.expat.ExpatError) as error:

1259

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

1260

exc_info=error)

1261

return xmlstring

1262

1263

1264

class DBusObjectWithProperties(DBusObjectWithAnnotations):

1265

"""A D-Bus object with properties.

1266

1267

Classes inheriting from this can use the dbus_service_property

1268

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

1269

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

1270

"""

893

inspect.getmembers(cls,

894

self._is_dbus_thing(thing)))

1271

895

1272

896

def _get_dbus_property(self, interface_name, property_name):

1273

897

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

1274

898

property with the specified name and interface.

1275

899

"""

1276

for cls in self.__class__.__mro__:

1277

for name, value in inspect.getmembers(

1278

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

900

for cls in self.__class__.__mro__:

901

for name, value in (inspect.getmembers

902

(cls,

903

self._is_dbus_thing("property"))):

1279

904

if (value._dbus_name == property_name

1280

905

and value._dbus_interface == interface_name):

1281

906

return value.__get__(self)

1282

907

1283

908

# No such property

1284

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

1285

self.dbus_object_path, interface_name, property_name))

1286

1287

@classmethod

1288

def _get_all_interface_names(cls):

1289

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

1290

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

1291

"_dbus_interface", None)

1292

for x in (inspect.getmro(cls))

1293

for attr in dir(x))

1294

if name is not None)

1295

1296

@dbus.service.method(dbus.PROPERTIES_IFACE,

1297

in_signature="ss",

909

raise DBusPropertyNotFound(self.dbus_object_path + ":"

910

+ interface_name + "."

911

+ property_name)

912

913

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

1298

914

out_signature="v")

1299

915

def Get(self, interface_name, property_name):

1300

916

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

1318

934

# The byte_arrays option is not supported yet on

1319

935

# signatures other than "ay".

1320

936

if prop._dbus_signature != "ay":

1321

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

1322

"'ay' signature {!r}"

1323

.format(prop._dbus_signature))

937

raise ValueError

1324

938

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

1325

939

for byte in value))

1326

940

prop(value)

1327

941

1328

@dbus.service.method(dbus.PROPERTIES_IFACE,

1329

in_signature="s",

942

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

1330

943

out_signature="a{sv}")

1331

944

def GetAll(self, interface_name):

1332

945

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

1347

960

if not hasattr(value, "variant_level"):

1348

961

properties[name] = value

1349

962

continue

1350

properties[name] = type(value)(

1351

value, variant_level = value.variant_level + 1)

963

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

964

value.variant_level+1)

1352

965

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

1353

966

1354

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

1355

def PropertiesChanged(self, interface_name, changed_properties,

1356

invalidated_properties):

1357

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

1358

standard.

1359

"""

1360

pass

1361

1362

967

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1363

968

out_signature="s",

1364

969

path_keyword='object_path',

1368

973

1369

974

Inserts property tags and interface annotation tags.

1370

975

"""

1371

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1372

object_path,

1373

connection)

976

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

977

connection)

1374

978

try:

1375

979

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

1376

1377

980

def make_tag(document, name, prop):

1378

981

e = document.createElement("property")

1379

982

e.setAttribute("name", name)

1380

983

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

1381

984

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

1382

985

return e

1383

1384

986

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

1385

987

# Add property tags

1386

988

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

1389

991

if prop._dbus_interface

1390

992

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

1391

993

if_tag.appendChild(tag)

1392

# Add annotation tags for properties

1393

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

1394

annots = dict()

1395

for name, prop in self._get_all_dbus_things(

1396

"property"):

1397

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

1398

and prop._dbus_interface

1399

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

1400

annots.update(getattr(

1401

prop, "_dbus_annotations", {}))

1402

for name, value in annots.items():

1403

ann_tag = document.createElement(

1404

"annotation")

1405

ann_tag.setAttribute("name", name)

1406

ann_tag.setAttribute("value", value)

1407

tag.appendChild(ann_tag)

994

# Add annotation tags

995

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

996

for tag in if_tag.getElementsByTagName(typ):

997

annots = dict()

998

for name, prop in (self.

999

_get_all_dbus_things(typ)):

1000

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

1001

and prop._dbus_interface

1002

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

1003

annots.update(getattr

1004

(prop,

1005

"_dbus_annotations",

1006

{}))

1007

for name, value in annots.iteritems():

1008

ann_tag = document.createElement(

1009

"annotation")

1010

ann_tag.setAttribute("name", name)

1011

ann_tag.setAttribute("value", value)

1012

tag.appendChild(ann_tag)

1013

# Add interface annotation tags

1014

for annotation, value in dict(

1015

itertools.chain.from_iterable(

1016

annotations().iteritems()

1017

for name, annotations in

1018

self._get_all_dbus_things("interface")

1019

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

1020

)).iteritems():

1021

ann_tag = document.createElement("annotation")

1022

ann_tag.setAttribute("name", annotation)

1023

ann_tag.setAttribute("value", value)

1024

if_tag.appendChild(ann_tag)

1408

1025

# Add the names to the return values for the

1409

1026

# "org.freedesktop.DBus.Properties" methods

1410

1027

if (if_tag.getAttribute("name")

1428

1045

exc_info=error)

1429

1046

return xmlstring

1430

1047

1431

try:

1432

dbus.OBJECT_MANAGER_IFACE

1433

except AttributeError:

1434

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

1435

1436

class DBusObjectWithObjectManager(DBusObjectWithAnnotations):

1437

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

1438

1439

Classes inheriting from this exposes the standard

1440

GetManagedObjects call and the InterfacesAdded and

1441

InterfacesRemoved signals on the standard

1442

"org.freedesktop.DBus.ObjectManager" interface.

1443

1444

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

1445

manually.

1446

"""

1447

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

1448

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

1449

def GetManagedObjects(self):

1450

"""This function must be overridden"""

1451

raise NotImplementedError()

1452

1453

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,

1454

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

1455

def InterfacesAdded(self, object_path, interfaces_and_properties):

1456

pass

1457

1458

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

1459

def InterfacesRemoved(self, object_path, interfaces):

1460

pass

1461

1462

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1463

out_signature = "s",

1464

path_keyword = 'object_path',

1465

connection_keyword = 'connection')

1466

def Introspect(self, object_path, connection):

1467

"""Overloading of standard D-Bus method.

1468

1469

Override return argument name of GetManagedObjects to be

1470

"objpath_interfaces_and_properties"

1471

"""

1472

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1473

object_path,

1474

connection)

1475

try:

1476

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

1477

1478

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

1479

# Fix argument name for the GetManagedObjects method

1480

if (if_tag.getAttribute("name")

1481

== dbus.OBJECT_MANAGER_IFACE):

1482

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

1483

if (cn.getAttribute("name")

1484

== "GetManagedObjects"):

1485

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

1486

if (arg.getAttribute("direction")

1487

== "out"):

1488

arg.setAttribute(

1489

"name",

1490

"objpath_interfaces"

1491

"_and_properties")

1492

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

1493

document.unlink()

1494

except (AttributeError, xml.dom.DOMException,

1495

xml.parsers.expat.ExpatError) as error:

1496

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

1497

exc_info = error)

1498

return xmlstring

1499

1048

1500

1049

def datetime_to_dbus(dt, variant_level=0):

1501

1050

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

1502

1051

if dt is None:

1503

1052

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

1504

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

1053

return dbus.String(dt.isoformat(),

1054

variant_level=variant_level)

1505

1055

1506

1056

1507

1057

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1527

1077

(from DBusObjectWithProperties) and interfaces (from the

1528

1078

dbus_interface_annotations decorator).

1529

1079

"""

1530

1531

1080

def wrapper(cls):

1532

1081

for orig_interface_name, alt_interface_name in (

1533

alt_interface_names.items()):

1082

alt_interface_names.iteritems()):

1534

1083

attr = {}

1535

1084

interface_names = set()

1536

1085

# Go though all attributes of the class

1538

1087

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

1539

1088

# with the wrong interface name

1540

1089

if (not hasattr(attribute, "_dbus_interface")

1541

or not attribute._dbus_interface.startswith(

1542

orig_interface_name)):

1090

or not attribute._dbus_interface

1091

.startswith(orig_interface_name)):

1543

1092

continue

1544

1093

# Create an alternate D-Bus interface name based on

1545

1094

# the current name

1546

alt_interface = attribute._dbus_interface.replace(

1547

orig_interface_name, alt_interface_name)

1095

alt_interface = (attribute._dbus_interface

1096

.replace(orig_interface_name,

1097

alt_interface_name))

1548

1098

interface_names.add(alt_interface)

1549

1099

# Is this a D-Bus signal?

1550

1100

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

1551

1101

# Extract the original non-method undecorated

1552

1102

# function by black magic

1553

if sys.version_info.major == 2:

1554

nonmethod_func = (dict(

1103

nonmethod_func = (dict(

1555

1104

zip(attribute.func_code.co_freevars,

1556

attribute.__closure__))

1557

["func"].cell_contents)

1558

else:

1559

nonmethod_func = (dict(

1560

zip(attribute.__code__.co_freevars,

1561

attribute.__closure__))

1562

["func"].cell_contents)

1105

attribute.__closure__))["func"]

1106

.cell_contents)

1563

1107

# Create a new, but exactly alike, function

1564

1108

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

1565

1109

# with the alternate D-Bus interface name

1566

new_function = copy_function(nonmethod_func)

1567

new_function = (dbus.service.signal(

1568

alt_interface,

1569

attribute._dbus_signature)(new_function))

1110

new_function = (dbus.service.signal

1111

(alt_interface,

1112

attribute._dbus_signature)

1113

(types.FunctionType(

1114

nonmethod_func.func_code,

1115

nonmethod_func.func_globals,

1116

nonmethod_func.func_name,

1117

nonmethod_func.func_defaults,

1118

nonmethod_func.func_closure)))

1570

1119

# Copy annotations, if any

1571

1120

try:

1572

new_function._dbus_annotations = dict(

1573

attribute._dbus_annotations)

1121

new_function._dbus_annotations = (

1122

dict(attribute._dbus_annotations))

1574

1123

except AttributeError:

1575

1124

pass

1576

1125

# Define a creator of a function to call both the

1581

1130

"""This function is a scope container to pass

1582

1131

func1 and func2 to the "call_both" function

1583

1132

outside of its arguments"""

1584

1585

@functools.wraps(func2)

1586

1133

def call_both(*args, **kwargs):

1587

1134

"""This function will emit two D-Bus

1588

1135

signals by calling func1 and func2"""

1589

1136

func1(*args, **kwargs)

1590

1137

func2(*args, **kwargs)

1591

# Make wrapper function look like a D-Bus signal

1592

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

1593

if name.startswith("_dbus_"):

1594

setattr(call_both, name, attr)

1595

1596

1138

return call_both

1597

1139

# Create the "call_both" function and add it to

1598

1140

# the class

1603

1145

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

1604

1146

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

1605

1147

# to the class.

1606

attr[attrname] = (

1607

dbus.service.method(

1608

alt_interface,

1609

attribute._dbus_in_signature,

1610

attribute._dbus_out_signature)

1611

(copy_function(attribute)))

1148

attr[attrname] = (dbus.service.method

1149

(alt_interface,

1150

attribute._dbus_in_signature,

1151

attribute._dbus_out_signature)

1152

(types.FunctionType

1153

(attribute.func_code,

1154

attribute.func_globals,

1155

attribute.func_name,

1156

attribute.func_defaults,

1157

attribute.func_closure)))

1612

1158

# Copy annotations, if any

1613

1159

try:

1614

attr[attrname]._dbus_annotations = dict(

1615

attribute._dbus_annotations)

1160

attr[attrname]._dbus_annotations = (

1161

dict(attribute._dbus_annotations))

1616

1162

except AttributeError:

1617

1163

pass

1618

1164

# Is this a D-Bus property?

1621

1167

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

1622

1168

# property with the alternate D-Bus interface

1623

1169

# name. Add it to the class.

1624

attr[attrname] = (dbus_service_property(

1625

alt_interface, attribute._dbus_signature,

1626

attribute._dbus_access,

1627

attribute._dbus_get_args_options

1628

["byte_arrays"])

1629

(copy_function(attribute)))

1170

attr[attrname] = (dbus_service_property

1171

(alt_interface,

1172

attribute._dbus_signature,

1173

attribute._dbus_access,

1174

attribute

1175

._dbus_get_args_options

1176

["byte_arrays"])

1177

(types.FunctionType

1178

(attribute.func_code,

1179

attribute.func_globals,

1180

attribute.func_name,

1181

attribute.func_defaults,

1182

attribute.func_closure)))

1630

1183

# Copy annotations, if any

1631

1184

try:

1632

attr[attrname]._dbus_annotations = dict(

1633

attribute._dbus_annotations)

1185

attr[attrname]._dbus_annotations = (

1186

dict(attribute._dbus_annotations))

1634

1187

except AttributeError:

1635

1188

pass

1636

1189

# Is this a D-Bus interface?

1639

1192

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

1640

1193

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

1641

1194

# to the class.

1642

attr[attrname] = (

1643

dbus_interface_annotations(alt_interface)

1644

(copy_function(attribute)))

1195

attr[attrname] = (dbus_interface_annotations

1196

(alt_interface)

1197

(types.FunctionType

1198

(attribute.func_code,

1199

attribute.func_globals,

1200

attribute.func_name,

1201

attribute.func_defaults,

1202

attribute.func_closure)))

1645

1203

if deprecate:

1646

1204

# Deprecate all alternate interfaces

1647

iname="_AlternateDBusNames_interface_annotation{}"

1205

iname="_AlternateDBusNames_interface_annotation{0}"

1648

1206

for interface_name in interface_names:

1649

1650

1207

@dbus_interface_annotations(interface_name)

1651

1208

def func(self):

1652

1209

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

1653

"true" }

1210

"true" }

1654

1211

# Find an unused name

1655

1212

for aname in (iname.format(i)

1656

1213

for i in itertools.count()):

1660

1217

if interface_names:

1661

1218

# Replace the class with a new subclass of it with

1662

1219

# methods, signals, etc. as created above.

1663

if sys.version_info.major == 2:

1664

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

1665

(cls, ), attr)

1666

else:

1667

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

1668

(cls, ), attr)

1220

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

1221

(cls,), attr)

1669

1222

return cls

1670

1671

1223

return wrapper

1672

1224

1673

1225

1674

1226

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

1675

"se.bsnet.fukt.Mandos"})

1227

"se.bsnet.fukt.Mandos"})

1676

1228

class ClientDBus(Client, DBusObjectWithProperties):

1677

1229

"""A Client class using D-Bus

1678

1230

1682

1234

"""

1683

1235

1684

1236

runtime_expansions = (Client.runtime_expansions

1685

+ ("dbus_object_path", ))

1686

1687

_interface = "se.recompile.Mandos.Client"

1237

+ ("dbus_object_path",))

1688

1238

1689

1239

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

1690

1240

1693

1243

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

1694

1244

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

1695

1245

# the D-Bus

1696

client_object_name = str(self.name).translate(

1246

client_object_name = unicode(self.name).translate(

1697

1247

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

1698

1248

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

1699

self.dbus_object_path = dbus.ObjectPath(

1700

"/clients/" + client_object_name)

1249

self.dbus_object_path = (dbus.ObjectPath

1250

("/clients/" + client_object_name))

1701

1251

DBusObjectWithProperties.__init__(self, self.bus,

1702

1252

self.dbus_object_path)

1703

1253

1704

def notifychangeproperty(transform_func, dbus_name,

1705

type_func=lambda x: x,

1706

variant_level=1,

1707

invalidate_only=False,

1708

_interface=_interface):

1254

def notifychangeproperty(transform_func,

1255

dbus_name, type_func=lambda x: x,

1256

variant_level=1):

1709

1257

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

1710

1258

its changes to DBus.

1711

1259

1716

1264

to the D-Bus. Default: no transform

1717

1265

variant_level: D-Bus variant level. Default: 1

1718

1266

"""

1719

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

1720

1267

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

1721

1268

def setter(self, value):

1722

1269

if hasattr(self, "dbus_object_path"):

1723

1270

if (not hasattr(self, attrname) or

1724

1271

type_func(getattr(self, attrname, None))

1725

1272

!= type_func(value)):

1726

if invalidate_only:

1727

self.PropertiesChanged(

1728

_interface, dbus.Dictionary(),

1729

dbus.Array((dbus_name, )))

1730

else:

1731

dbus_value = transform_func(

1732

type_func(value),

1733

variant_level = variant_level)

1734

self.PropertyChanged(dbus.String(dbus_name),

1735

dbus_value)

1736

self.PropertiesChanged(

1737

_interface,

1738

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

1739

dbus_value }),

1740

dbus.Array())

1273

dbus_value = transform_func(type_func(value),

1274

variant_level

1275

=variant_level)

1276

self.PropertyChanged(dbus.String(dbus_name),

1277

dbus_value)

1741

1278

setattr(self, attrname, value)

1742

1279

1743

1280

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

1749

1286

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

1750

1287

last_enabled = notifychangeproperty(datetime_to_dbus,

1751

1288

"LastEnabled")

1752

checker = notifychangeproperty(

1753

dbus.Boolean, "CheckerRunning",

1754

type_func = lambda checker: checker is not None)

1289

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

1290

type_func = lambda checker:

1291

checker is not None)

1755

1292

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1756

1293

"LastCheckedOK")

1757

1294

last_checker_status = notifychangeproperty(dbus.Int16,

1760

1297

datetime_to_dbus, "LastApprovalRequest")

1761

1298

approved_by_default = notifychangeproperty(dbus.Boolean,

1762

1299

"ApprovedByDefault")

1763

approval_delay = notifychangeproperty(

1764

dbus.UInt64, "ApprovalDelay",

1765

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

1300

approval_delay = notifychangeproperty(dbus.UInt64,

1301

"ApprovalDelay",

1302

type_func =

1303

timedelta_to_milliseconds)

1766

1304

approval_duration = notifychangeproperty(

1767

1305

dbus.UInt64, "ApprovalDuration",

1768

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

1306

type_func = timedelta_to_milliseconds)

1769

1307

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

1770

timeout = notifychangeproperty(

1771

dbus.UInt64, "Timeout",

1772

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

1308

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

1309

type_func =

1310

timedelta_to_milliseconds)

1773

1311

extended_timeout = notifychangeproperty(

1774

1312

dbus.UInt64, "ExtendedTimeout",

1775

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

1776

interval = notifychangeproperty(

1777

dbus.UInt64, "Interval",

1778

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

1313

type_func = timedelta_to_milliseconds)

1314

interval = notifychangeproperty(dbus.UInt64,

1315

"Interval",

1316

type_func =

1317

timedelta_to_milliseconds)

1779

1318

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

1780

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

1781

invalidate_only=True)

1782

1319

1783

1320

del notifychangeproperty

1784

1321

1791

1328

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

1792

1329

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

1793

1330

1794

def checker_callback(self, source, condition,

1795

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

1796

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

1797

connection, command, *args,

1798

**kwargs)

1799

exitstatus = self.last_checker_status

1800

if exitstatus >= 0:

1331

def checker_callback(self, pid, condition, command,

1332

*args, **kwargs):

1333

self.checker_callback_tag = None

1334

self.checker = None

1335

if os.WIFEXITED(condition):

1336

exitstatus = os.WEXITSTATUS(condition)

1801

1337

# Emit D-Bus signal

1802

1338

self.CheckerCompleted(dbus.Int16(exitstatus),

1803

# This is specific to GNU libC

1804

dbus.Int64(exitstatus << 8),

1339

dbus.Int64(condition),

1805

1340

dbus.String(command))

1806

1341

else:

1807

1342

# Emit D-Bus signal

1808

1343

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

1809

dbus.Int64(

1810

# This is specific to GNU libC

1811

(exitstatus << 8)

1812

| self.last_checker_signal),

1344

dbus.Int64(condition),

1813

1345

dbus.String(command))

1814

return ret

1346

1347

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

1348

*args, **kwargs)

1815

1349

1816

1350

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

1817

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

1351

old_checker = self.checker

1352

if self.checker is not None:

1353

old_checker_pid = self.checker.pid

1354

else:

1355

old_checker_pid = None

1818

1356

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

1819

1357

# Only if new checker process was started

1820

1358

if (self.checker is not None

1829

1367

1830

1368

def approve(self, value=True):

1831

1369

self.approved = value

1832

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

1833

* 1000), self._reset_approved)

1370

gobject.timeout_add(timedelta_to_milliseconds

1371

(self.approval_duration),

1372

self._reset_approved)

1834

1373

self.send_changedstate()

1835

1374

1836

1375

## D-Bus methods, signals & properties

1376

_interface = "se.recompile.Mandos.Client"

1837

1377

1838

1378

## Interfaces

1839

1379

1380

@dbus_interface_annotations(_interface)

1381

def _foo(self):

1382

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

1383

"false"}

1384

1840

1385

## Signals

1841

1386

1842

1387

# CheckerCompleted - signal

1852

1397

pass

1853

1398

1854

1399

# PropertyChanged - signal

1855

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

1856

1400

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

1857

1401

def PropertyChanged(self, property, value):

1858

1402

"D-Bus signal"

1892

1436

self.checked_ok()

1893

1437

1894

1438

# Enable - method

1895

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

1896

1439

@dbus.service.method(_interface)

1897

1440

def Enable(self):

1898

1441

"D-Bus method"

1899

1442

self.enable()

1900

1443

1901

1444

# StartChecker - method

1902

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

1903

1445

@dbus.service.method(_interface)

1904

1446

def StartChecker(self):

1905

1447

"D-Bus method"

1906

1448

self.start_checker()

1907

1449

1908

1450

# Disable - method

1909

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

1910

1451

@dbus.service.method(_interface)

1911

1452

def Disable(self):

1912

1453

"D-Bus method"

1913

1454

self.disable()

1914

1455

1915

1456

# StopChecker - method

1916

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

1917

1457

@dbus.service.method(_interface)

1918

1458

def StopChecker(self):

1919

1459

self.stop_checker()

1926

1466

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

1927

1467

1928

1468

# ApprovedByDefault - property

1929

@dbus_service_property(_interface,

1930

signature="b",

1469

@dbus_service_property(_interface, signature="b",

1931

1470

access="readwrite")

1932

1471

def ApprovedByDefault_dbus_property(self, value=None):

1933

1472

if value is None: # get

1935

1474

self.approved_by_default = bool(value)

1936

1475

1937

1476

# ApprovalDelay - property

1938

@dbus_service_property(_interface,

1939

signature="t",

1477

@dbus_service_property(_interface, signature="t",

1940

1478

access="readwrite")

1941

1479

def ApprovalDelay_dbus_property(self, value=None):

1942

1480

if value is None: # get

1943

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

1944

* 1000)

1481

return dbus.UInt64(self.approval_delay_milliseconds())

1945

1482

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

1946

1483

1947

1484

# ApprovalDuration - property

1948

@dbus_service_property(_interface,

1949

signature="t",

1485

@dbus_service_property(_interface, signature="t",

1950

1486

access="readwrite")

1951

1487

def ApprovalDuration_dbus_property(self, value=None):

1952

1488

if value is None: # get

1953

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

1954

* 1000)

1489

return dbus.UInt64(timedelta_to_milliseconds(

1490

self.approval_duration))

1955

1491

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

1956

1492

1957

1493

# Name - property

1958

@dbus_annotations(

1959

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

1960

1494

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

1961

1495

def Name_dbus_property(self):

1962

1496

return dbus.String(self.name)

1963

1497

1964

1498

# Fingerprint - property

1965

@dbus_annotations(

1966

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

1967

1499

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

1968

1500

def Fingerprint_dbus_property(self):

1969

1501

return dbus.String(self.fingerprint)

1970

1502

1971

1503

# Host - property

1972

@dbus_service_property(_interface,

1973

signature="s",

1504

@dbus_service_property(_interface, signature="s",

1974

1505

access="readwrite")

1975

1506

def Host_dbus_property(self, value=None):

1976

1507

if value is None: # get

1977

1508

return dbus.String(self.host)

1978

self.host = str(value)

1509

self.host = unicode(value)

1979

1510

1980

1511

# Created - property

1981

@dbus_annotations(

1982

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

1983

1512

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

1984

1513

def Created_dbus_property(self):

1985

1514

return datetime_to_dbus(self.created)

1990

1519

return datetime_to_dbus(self.last_enabled)

1991

1520

1992

1521

# Enabled - property

1993

@dbus_service_property(_interface,

1994

signature="b",

1522

@dbus_service_property(_interface, signature="b",

1995

1523

access="readwrite")

1996

1524

def Enabled_dbus_property(self, value=None):

1997

1525

if value is None: # get

2002

1530

self.disable()

2003

1531

2004

1532

# LastCheckedOK - property

2005

@dbus_service_property(_interface,

2006

signature="s",

1533

@dbus_service_property(_interface, signature="s",

2007

1534

access="readwrite")

2008

1535

def LastCheckedOK_dbus_property(self, value=None):

2009

1536

if value is not None:

2012

1539

return datetime_to_dbus(self.last_checked_ok)

2013

1540

2014

1541

# LastCheckerStatus - property

2015

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

1542

@dbus_service_property(_interface, signature="n",

1543

access="read")

2016

1544

def LastCheckerStatus_dbus_property(self):

2017

1545

return dbus.Int16(self.last_checker_status)

2018

1546

2027

1555

return datetime_to_dbus(self.last_approval_request)

2028

1556

2029

1557

# Timeout - property

2030

@dbus_service_property(_interface,

2031

signature="t",

1558

@dbus_service_property(_interface, signature="t",

2032

1559

access="readwrite")

2033

1560

def Timeout_dbus_property(self, value=None):

2034

1561

if value is None: # get

2035

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

1562

return dbus.UInt64(self.timeout_milliseconds())

2036

1563

old_timeout = self.timeout

2037

1564

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

2038

1565

# Reschedule disabling

2046

1573

if (getattr(self, "disable_initiator_tag", None)

2047

1574

is None):

2048

1575

return

2049

GLib.source_remove(self.disable_initiator_tag)

2050

self.disable_initiator_tag = GLib.timeout_add(

2051

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

2052

self.disable)

1576

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))

2053

1581

2054

1582

# ExtendedTimeout - property

2055

@dbus_service_property(_interface,

2056

signature="t",

1583

@dbus_service_property(_interface, signature="t",

2057

1584

access="readwrite")

2058

1585

def ExtendedTimeout_dbus_property(self, value=None):

2059

1586

if value is None: # get

2060

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

2061

* 1000)

1587

return dbus.UInt64(self.extended_timeout_milliseconds())

2062

1588

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

2063

1589

2064

1590

# Interval - property

2065

@dbus_service_property(_interface,

2066

signature="t",

1591

@dbus_service_property(_interface, signature="t",

2067

1592

access="readwrite")

2068

1593

def Interval_dbus_property(self, value=None):

2069

1594

if value is None: # get

2070

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

1595

return dbus.UInt64(self.interval_milliseconds())

2071

1596

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

2072

1597

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

2073

1598

return

2074

1599

if self.enabled:

2075

1600

# Reschedule checker run

2076

GLib.source_remove(self.checker_initiator_tag)

2077

self.checker_initiator_tag = GLib.timeout_add(

2078

value, self.start_checker)

2079

self.start_checker() # Start one now, too

1601

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

2080

1605

2081

1606

# Checker - property

2082

@dbus_service_property(_interface,

2083

signature="s",

1607

@dbus_service_property(_interface, signature="s",

2084

1608

access="readwrite")

2085

1609

def Checker_dbus_property(self, value=None):

2086

1610

if value is None: # get

2087

1611

return dbus.String(self.checker_command)

2088

self.checker_command = str(value)

1612

self.checker_command = unicode(value)

2089

1613

2090

1614

# CheckerRunning - property

2091

@dbus_service_property(_interface,

2092

signature="b",

1615

@dbus_service_property(_interface, signature="b",

2093

1616

access="readwrite")

2094

1617

def CheckerRunning_dbus_property(self, value=None):

2095

1618

if value is None: # get

2100

1623

self.stop_checker()

2101

1624

2102

1625

# ObjectPath - property

2103

@dbus_annotations(

2104

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

2105

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

2106

1626

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

2107

1627

def ObjectPath_dbus_property(self):

2108

1628

return self.dbus_object_path # is already a dbus.ObjectPath

2109

1629

2110

1630

# Secret = property

2111

@dbus_annotations(

2112

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

2113

"invalidates"})

2114

@dbus_service_property(_interface,

2115

signature="ay",

2116

access="write",

2117

byte_arrays=True)

1631

@dbus_service_property(_interface, signature="ay",

1632

access="write", byte_arrays=True)

2118

1633

def Secret_dbus_property(self, value):

2119

self.secret = bytes(value)

1634

self.secret = str(value)

2120

1635

2121

1636

del _interface

2122

1637

2126

1641

self._pipe = child_pipe

2127

1642

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

2128

1643

if not self._pipe.recv():

2129

raise KeyError(fpr)

1644

raise KeyError()

2130

1645

2131

1646

def __getattribute__(self, name):

2132

1647

if name == '_pipe':

2136

1651

if data[0] == 'data':

2137

1652

return data[1]

2138

1653

if data[0] == 'function':

2139

2140

1654

def func(*args, **kwargs):

2141

1655

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

2142

1656

return self._pipe.recv()[1]

2143

2144

1657

return func

2145

1658

2146

1659

def __setattr__(self, name, value):

2158

1671

def handle(self):

2159

1672

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

2160

1673

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

2161

str(self.client_address))

1674

unicode(self.client_address))

2162

1675

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

2163

1676

self.server.child_pipe.fileno())

2164

1677

2165

session = gnutls.ClientSession(self.request)

1678

session = (gnutls.connection

1679

.ClientSession(self.request,

1680

gnutls.connection

1681

.X509Credentials()))

1682

1683

# Note: gnutls.connection.X509Credentials is really a

1684

# generic GnuTLS certificate credentials object so long as

1685

# no X.509 keys are added to it. Therefore, we can use it

1686

# here despite using OpenPGP certificates.

2166

1687

2167

1688

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

2168

1689

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

2172

1693

priority = self.server.gnutls_priority

2173

1694

if priority is None:

2174

1695

priority = "NORMAL"

2175

gnutls.priority_set_direct(session._c_object, priority,

2176

None)

1696

(gnutls.library.functions

1697

.gnutls_priority_set_direct(session._c_object,

1698

priority, None))

2177

1699

2178

1700

# Start communication using the Mandos protocol

2179

1701

# Get protocol number

2189

1711

# Start GnuTLS connection

2190

1712

try:

2191

1713

session.handshake()

2192

except gnutls.Error as error:

1714

except gnutls.errors.GNUTLSError as error:

2193

1715

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

2194

1716

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

2195

1717

# established. Just abandon the request.

2199

1721

approval_required = False

2200

1722

try:

2201

1723

try:

2202

fpr = self.fingerprint(

2203

self.peer_certificate(session))

2204

except (TypeError, gnutls.Error) as error:

1724

fpr = self.fingerprint(self.peer_certificate

1725

(session))

1726

except (TypeError,

1727

gnutls.errors.GNUTLSError) as error:

2205

1728

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

2206

1729

return

2207

1730

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

2220

1743

while True:

2221

1744

if not client.enabled:

2222

1745

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

2223

client.name)

1746

client.name)

2224

1747

if self.server.use_dbus:

2225

1748

# Emit D-Bus signal

2226

1749

client.Rejected("Disabled")

2235

1758

if self.server.use_dbus:

2236

1759

# Emit D-Bus signal

2237

1760

client.NeedApproval(

2238

client.approval_delay.total_seconds()

2239

* 1000, client.approved_by_default)

1761

client.approval_delay_milliseconds(),

1762

client.approved_by_default)

2240

1763

else:

2241

1764

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

2242

1765

client.name)

2248

1771

#wait until timeout or approved

2249

1772

time = datetime.datetime.now()

2250

1773

client.changedstate.acquire()

2251

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

1774

client.changedstate.wait(

1775

float(timedelta_to_milliseconds(delay)

1776

/ 1000))

2252

1777

client.changedstate.release()

2253

1778

time2 = datetime.datetime.now()

2254

1779

if (time2 - time) >= delay:

2265

1790

else:

2266

1791

delay -= time2 - time

2267

1792

2268

try:

2269

session.send(client.secret)

2270

except gnutls.Error as error:

2271

logger.warning("gnutls send failed",

2272

exc_info = error)

2273

return

1793

sent_size = 0

1794

while sent_size < len(client.secret):

1795

try:

1796

sent = session.send(client.secret[sent_size:])

1797

except gnutls.errors.GNUTLSError as error:

1798

logger.warning("gnutls send failed",

1799

exc_info=error)

1800

return

1801

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

1802

sent, len(client.secret)

1803

- (sent_size + sent))

1804

sent_size += sent

2274

1805

2275

1806

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

2276

1807

# bump the timeout using extended_timeout

2284

1815

client.approvals_pending -= 1

2285

1816

try:

2286

1817

session.bye()

2287

except gnutls.Error as error:

1818

except gnutls.errors.GNUTLSError as error:

2288

1819

logger.warning("GnuTLS bye failed",

2289

1820

exc_info=error)

2290

1821

2292

1823

def peer_certificate(session):

2293

1824

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

2294

1825

# If not an OpenPGP certificate...

2295

if (gnutls.certificate_type_get(session._c_object)

2296

!= gnutls.CRT_OPENPGP):

2297

# ...return invalid data

2298

return b""

1826

if (gnutls.library.functions

1827

.gnutls_certificate_type_get(session._c_object)

1828

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1829

# ...do the normal thing

1830

return session.peer_certificate

2299

1831

list_size = ctypes.c_uint(1)

2300

cert_list = (gnutls.certificate_get_peers

1832

cert_list = (gnutls.library.functions

1833

.gnutls_certificate_get_peers

2301

1834

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

2302

1835

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

2303

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

1836

raise gnutls.errors.GNUTLSError("error getting peer"

1837

" certificate")

2304

1838

if list_size.value == 0:

2305

1839

return None

2306

1840

cert = cert_list[0]

2310

1844

def fingerprint(openpgp):

2311

1845

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

2312

1846

# New GnuTLS "datum" with the OpenPGP public key

2313

datum = gnutls.datum_t(

2314

ctypes.cast(ctypes.c_char_p(openpgp),

2315

ctypes.POINTER(ctypes.c_ubyte)),

2316

ctypes.c_uint(len(openpgp)))

1847

datum = (gnutls.library.types

1848

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

1849

ctypes.POINTER

1850

(ctypes.c_ubyte)),

1851

ctypes.c_uint(len(openpgp))))

2317

1852

# New empty GnuTLS certificate

2318

crt = gnutls.openpgp_crt_t()

2319

gnutls.openpgp_crt_init(ctypes.byref(crt))

1853

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1854

(gnutls.library.functions

1855

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

2320

1856

# Import the OpenPGP public key into the certificate

2321

gnutls.openpgp_crt_import(crt, ctypes.byref(datum),

2322

gnutls.OPENPGP_FMT_RAW)

1857

(gnutls.library.functions

1858

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

1859

gnutls.library.constants

1860

.GNUTLS_OPENPGP_FMT_RAW))

2323

1861

# Verify the self signature in the key

2324

1862

crtverify = ctypes.c_uint()

2325

gnutls.openpgp_crt_verify_self(crt, 0,

2326

ctypes.byref(crtverify))

1863

(gnutls.library.functions

1864

.gnutls_openpgp_crt_verify_self(crt, 0,

1865

ctypes.byref(crtverify)))

2327

1866

if crtverify.value != 0:

2328

gnutls.openpgp_crt_deinit(crt)

2329

raise gnutls.CertificateSecurityError("Verify failed")

1867

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1868

raise (gnutls.errors.CertificateSecurityError

1869

("Verify failed"))

2330

1870

# New buffer for the fingerprint

2331

1871

buf = ctypes.create_string_buffer(20)

2332

1872

buf_len = ctypes.c_size_t()

2333

1873

# Get the fingerprint from the certificate into the buffer

2334

gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),

2335

ctypes.byref(buf_len))

1874

(gnutls.library.functions

1875

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

1876

ctypes.byref(buf_len)))

2336

1877

# Deinit the certificate

2337

gnutls.openpgp_crt_deinit(crt)

1878

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

2338

1879

# Convert the buffer to a Python bytestring

2339

1880

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

2340

1881

# Convert the bytestring to hexadecimal notation

2344

1885

2345

1886

class MultiprocessingMixIn(object):

2346

1887

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

2347

2348

1888

def sub_process_main(self, request, address):

2349

1889

try:

2350

1890

self.finish_request(request, address)

2362

1902

2363

1903

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

2364

1904

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

2365

2366

1905

def process_request(self, request, client_address):

2367

1906

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

2368

1907

2389

1928

interface: None or a network interface name (string)

2390

1929

use_ipv6: Boolean; to use IPv6 or not

2391

1930

"""

2392

2393

1931

def __init__(self, server_address, RequestHandlerClass,

2394

interface=None,

2395

use_ipv6=True,

2396

socketfd=None):

1932

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

2397

1933

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

2398

1934

creating a new one with socket.socket().

2399

1935

"""

2440

1976

self.interface)

2441

1977

else:

2442

1978

try:

2443

self.socket.setsockopt(

2444

socket.SOL_SOCKET, SO_BINDTODEVICE,

2445

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

1979

self.socket.setsockopt(socket.SOL_SOCKET,

1980

SO_BINDTODEVICE,

1981

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

2446

1982

except socket.error as error:

2447

1983

if error.errno == errno.EPERM:

2448

1984

logger.error("No permission to bind to"

2466

2002

self.server_address = (any_address,

2467

2003

self.server_address[1])

2468

2004

elif not self.server_address[1]:

2469

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

2005

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

2006

0)

2470

2007

# if self.interface:

2471

2008

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

2472

2009

# 0, # port

2484

2021

gnutls_priority GnuTLS priority string

2485

2022

use_dbus: Boolean; to emit D-Bus signals or not

2486

2023

2487

Assumes a GLib.MainLoop event loop.

2024

Assumes a gobject.MainLoop event loop.

2488

2025

"""

2489

2490

2026

def __init__(self, server_address, RequestHandlerClass,

2491

interface=None,

2492

use_ipv6=True,

2493

clients=None,

2494

gnutls_priority=None,

2495

use_dbus=True,

2496

socketfd=None):

2027

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

2028

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

2497

2029

self.enabled = False

2498

2030

self.clients = clients

2499

2031

if self.clients is None:

2505

2037

interface = interface,

2506

2038

use_ipv6 = use_ipv6,

2507

2039

socketfd = socketfd)

2508

2509

2040

def server_activate(self):

2510

2041

if self.enabled:

2511

2042

return socketserver.TCPServer.server_activate(self)

2515

2046

2516

2047

def add_pipe(self, parent_pipe, proc):

2517

2048

# Call "handle_ipc" for both data and EOF events

2518

GLib.io_add_watch(

2519

parent_pipe.fileno(),

2520

GLib.IO_IN | GLib.IO_HUP,

2521

functools.partial(self.handle_ipc,

2522

parent_pipe = parent_pipe,

2523

proc = proc))

2049

gobject.io_add_watch(parent_pipe.fileno(),

2050

gobject.IO_IN | gobject.IO_HUP,

2051

functools.partial(self.handle_ipc,

2052

parent_pipe =

2053

parent_pipe,

2054

proc = proc))

2524

2055

2525

def handle_ipc(self, source, condition,

2526

parent_pipe=None,

2527

proc = None,

2528

client_object=None):

2056

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

2057

proc = None, client_object=None):

2529

2058

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

2530

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

2059

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

2531

2060

# Wait for other process to exit

2532

2061

proc.join()

2533

2062

return False

2540

2069

fpr = request[1]

2541

2070

address = request[2]

2542

2071

2543

for c in self.clients.values():

2072

for c in self.clients.itervalues():

2544

2073

if c.fingerprint == fpr:

2545

2074

client = c

2546

2075

break

2554

2083

parent_pipe.send(False)

2555

2084

return False

2556

2085

2557

GLib.io_add_watch(

2558

parent_pipe.fileno(),

2559

GLib.IO_IN | GLib.IO_HUP,

2560

functools.partial(self.handle_ipc,

2561

parent_pipe = parent_pipe,

2562

proc = proc,

2563

client_object = client))

2086

gobject.io_add_watch(parent_pipe.fileno(),

2087

gobject.IO_IN | gobject.IO_HUP,

2088

functools.partial(self.handle_ipc,

2089

parent_pipe =

2090

parent_pipe,

2091

proc = proc,

2092

client_object =

2093

client))

2564

2094

parent_pipe.send(True)

2565

2095

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

2566

2096

# same fileno

2572

2102

2573

2103

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

2574

2104

funcname)(*args,

2575

**kwargs)))

2105

**kwargs)))

2576

2106

2577

2107

if command == 'getattr':

2578

2108

attrname = request[1]

2579

if isinstance(client_object.__getattribute__(attrname),

2580

collections.Callable):

2581

parent_pipe.send(('function', ))

2109

if callable(client_object.__getattribute__(attrname)):

2110

parent_pipe.send(('function',))

2582

2111

else:

2583

parent_pipe.send((

2584

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

2112

parent_pipe.send(('data', client_object

2113

.__getattribute__(attrname)))

2585

2114

2586

2115

if command == 'setattr':

2587

2116

attrname = request[1]

2618

2147

# avoid excessive use of external libraries.

2619

2148

2620

2149

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

2621

Token = collections.namedtuple("Token", (

2622

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

2623

# a "group" containing digits

2624

"value", # datetime.timedelta or None

2625

"followers")) # Tokens valid after this token

2150

Token = collections.namedtuple("Token",

2151

("regexp", # To match token; if

2152

# "value" is not None,

2153

# must have a "group"

2154

# containing digits

2155

"value", # datetime.timedelta or

2156

# None

2157

"followers")) # Tokens valid after

2158

# this token

2626

2159

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

2627

2160

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

2628

2161

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

2629

2162

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

2630

2163

datetime.timedelta(seconds=1),

2631

frozenset((token_end, )))

2164

frozenset((token_end,)))

2632

2165

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

2633

2166

datetime.timedelta(minutes=1),

2634

2167

frozenset((token_second, token_end)))

2650

2183

frozenset((token_month, token_end)))

2651

2184

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

2652

2185

datetime.timedelta(weeks=1),

2653

frozenset((token_end, )))

2186

frozenset((token_end,)))

2654

2187

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

2655

2188

frozenset((token_year, token_month,

2656

2189

token_day, token_time,

2657

token_week)))

2190

token_week))),

2658

2191

# Define starting values

2659

2192

value = datetime.timedelta() # Value so far

2660

2193

found_token = None

2661

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

2194

followers = frozenset(token_duration,) # Following valid tokens

2662

2195

s = duration # String left to parse

2663

2196

# Loop until end token is found

2664

2197

while found_token is not token_end:

2681

2214

break

2682

2215

else:

2683

2216

# No currently valid tokens were found

2684

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

2685

.format(duration))

2217

raise ValueError("Invalid RFC 3339 duration")

2686

2218

# End token found

2687

2219

return value

2688

2220

2712

2244

timevalue = datetime.timedelta(0)

2713

2245

for s in interval.split():

2714

2246

try:

2715

suffix = s[-1]

2247

suffix = unicode(s[-1])

2716

2248

value = int(s[:-1])

2717

2249

if suffix == "d":

2718

2250

delta = datetime.timedelta(value)

2725

2257

elif suffix == "w":

2726

2258

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

2727

2259

else:

2728

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

2260

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

2261

.format(suffix))

2729

2262

except IndexError as e:

2730

2263

raise ValueError(*(e.args))

2731

2264

timevalue += delta

2748

2281

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

2749

2282

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

2750

2283

raise OSError(errno.ENODEV,

2751

"{} not a character device"

2284

"{0} not a character device"

2752

2285

.format(os.devnull))

2753

2286

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

2754

2287

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

2764

2297

2765

2298

parser = argparse.ArgumentParser()

2766

2299

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

2767

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

2300

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

2768

2301

help="show version number and exit")

2769

2302

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

2770

2303

help="Bind to interface IF")

2803

2336

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

2804

2337

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

2805

2338

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

2806

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

2807

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

2808

default=None)

2809

2339

2810

2340

options = parser.parse_args()

2811

2341

2812

2342

if options.check:

2813

2343

import doctest

2814

fail_count, test_count = doctest.testmod()

2815

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

2344

doctest.testmod()

2345

sys.exit()

2816

2346

2817

2347

# Default values for config file for server-global settings

2818

2348

server_defaults = { "interface": "",

2820

2350

"port": "",

2821

2351

"debug": "False",

2822

2352

"priority":

2823

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

2824

":+SIGN-DSA-SHA256",

2353

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

2825

2354

"servicename": "Mandos",

2826

2355

"use_dbus": "True",

2827

2356

"use_ipv6": "True",

2830

2359

"socket": "",

2831

2360

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

2832

2361

"foreground": "False",

2833

"zeroconf": "True",

2834

}

2362

}

2835

2363

2836

2364

# Parse config file for server-global settings

2837

2365

server_config = configparser.SafeConfigParser(server_defaults)

2838

2366

del server_defaults

2839

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

2367

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

2368

"mandos.conf"))

2840

2369

# Convert the SafeConfigParser object to a dict

2841

2370

server_settings = server_config.defaults()

2842

2371

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

2860

2389

# Override the settings from the config file with command line

2861

2390

# options, if set.

2862

2391

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

2863

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

2864

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

2865

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

2392

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

2393

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

2394

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

2866

2395

value = getattr(options, option)

2867

2396

if value is not None:

2868

2397

server_settings[option] = value

2869

2398

del options

2870

2399

# Force all strings to be unicode

2871

2400

for option in server_settings.keys():

2872

if isinstance(server_settings[option], bytes):

2873

server_settings[option] = (server_settings[option]

2874

.decode("utf-8"))

2401

if type(server_settings[option]) is str:

2402

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

2875

2403

# Force all boolean options to be boolean

2876

2404

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

2877

"foreground", "zeroconf"):

2405

"foreground"):

2878

2406

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

2879

2407

# Debug implies foreground

2880

2408

if server_settings["debug"]:

2883

2411

2884

2412

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

2885

2413

2886

if (not server_settings["zeroconf"]

2887

and not (server_settings["port"]

2888

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

2889

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

2890

2891

2414

# For convenience

2892

2415

debug = server_settings["debug"]

2893

2416

debuglevel = server_settings["debuglevel"]

2896

2419

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

2897

2420

stored_state_file)

2898

2421

foreground = server_settings["foreground"]

2899

zeroconf = server_settings["zeroconf"]

2900

2422

2901

2423

if debug:

2902

2424

initlogger(debug, logging.DEBUG)

2908

2430

initlogger(debug, level)

2909

2431

2910

2432

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

2911

syslogger.setFormatter(

2912

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

2913

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

2914

server_settings["servicename"])))

2433

syslogger.setFormatter(logging.Formatter

2434

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

2435

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

2436

.format(server_settings

2437

["servicename"])))

2915

2438

2916

2439

# Parse config file with clients

2917

2440

client_config = configparser.SafeConfigParser(Client

2922

2445

global mandos_dbus_service

2923

2446

mandos_dbus_service = None

2924

2447

2925

socketfd = None

2926

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

2927

socketfd = server_settings["socket"]

2928

tcp_server = MandosServer(

2929

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

2930

ClientHandler,

2931

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

2932

use_ipv6=use_ipv6,

2933

gnutls_priority=server_settings["priority"],

2934

use_dbus=use_dbus,

2935

socketfd=socketfd)

2448

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

2449

server_settings["port"]),

2450

ClientHandler,

2451

interface=(server_settings["interface"]

2452

or None),

2453

use_ipv6=use_ipv6,

2454

gnutls_priority=

2455

server_settings["priority"],

2456

use_dbus=use_dbus,

2457

socketfd=(server_settings["socket"]

2458

or None))

2936

2459

if not foreground:

2937

2460

pidfilename = "/run/mandos.pid"

2938

2461

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

2939

2462

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

2940

2463

pidfile = None

2941

2464

try:

2942

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

2465

pidfile = open(pidfilename, "w")

2943

2466

except IOError as e:

2944

2467

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

2945

2468

exc_info=e)

2946

2469

2947

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

2948

("mandos", "mandos"),

2949

("nobody", "nogroup")):

2470

for name in ("_mandos", "mandos", "nobody"):

2950

2471

try:

2951

2472

uid = pwd.getpwnam(name).pw_uid

2952

gid = pwd.getpwnam(group).pw_gid

2473

gid = pwd.getpwnam(name).pw_gid

2953

2474

break

2954

2475

except KeyError:

2955

2476

continue

2959

2480

try:

2960

2481

os.setgid(gid)

2961

2482

os.setuid(uid)

2962

if debug:

2963

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

2964

gid))

2965

2483

except OSError as error:

2966

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

2967

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

2968

2484

if error.errno != errno.EPERM:

2969

2485

raise

2970

2486

2973

2489

2974

2490

# "Use a log level over 10 to enable all debugging options."

2975

2491

# - GnuTLS manual

2976

gnutls.global_set_log_level(11)

2492

gnutls.library.functions.gnutls_global_set_log_level(11)

2977

2493

2978

@gnutls.log_func

2494

@gnutls.library.types.gnutls_log_func

2979

2495

def debug_gnutls(level, string):

2980

2496

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

2981

2497

2982

gnutls.global_set_log_function(debug_gnutls)

2498

(gnutls.library.functions

2499

.gnutls_global_set_log_function(debug_gnutls))

2983

2500

2984

2501

# Redirect stdin so all checkers get /dev/null

2985

2502

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

2992

2509

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

2993

2510

daemon()

2994

2511

2995

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

2996

# to inform GLib that threads will be used.

2997

GLib.threads_init()

2512

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

2513

# need to inform gobject that threads will be used.

2514

gobject.threads_init()

2998

2515

2999

2516

global main_loop

3000

2517

# From the Avahi example code

3001

2518

DBusGMainLoop(set_as_default=True)

3002

main_loop = GLib.MainLoop()

2519

main_loop = gobject.MainLoop()

3003

2520

bus = dbus.SystemBus()

3004

2521

# End of Avahi example code

3005

2522

if use_dbus:

3006

2523

try:

3007

2524

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

3008

bus,

3009

do_not_queue=True)

3010

old_bus_name = dbus.service.BusName(

3011

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

3012

do_not_queue=True)

3013

except dbus.exceptions.DBusException as e:

2525

bus, do_not_queue=True)

2526

old_bus_name = (dbus.service.BusName

2527

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

2528

do_not_queue=True))

2529

except dbus.exceptions.NameExistsException as e:

3014

2530

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

3015

2531

use_dbus = False

3016

2532

server_settings["use_dbus"] = False

3017

2533

tcp_server.use_dbus = False

3018

if zeroconf:

3019

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

3020

service = AvahiServiceToSyslog(

3021

name = server_settings["servicename"],

3022

servicetype = "_mandos._tcp",

3023

protocol = protocol,

3024

bus = bus)

3025

if server_settings["interface"]:

3026

service.interface = if_nametoindex(

3027

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

2534

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2535

service = AvahiServiceToSyslog(name =

2536

server_settings["servicename"],

2537

servicetype = "_mandos._tcp",

2538

protocol = protocol, bus = bus)

2539

if server_settings["interface"]:

2540

service.interface = (if_nametoindex

2541

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

3028

2542

3029

2543

global multiprocessing_manager

3030

2544

multiprocessing_manager = multiprocessing.Manager()

3049

2563

if server_settings["restore"]:

3050

2564

try:

3051

2565

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

3052

if sys.version_info.major == 2:

3053

clients_data, old_client_settings = pickle.load(

3054

stored_state)

3055

else:

3056

bytes_clients_data, bytes_old_client_settings = (

3057

pickle.load(stored_state, encoding = "bytes"))

3058

### Fix bytes to strings

3059

## clients_data

3060

# .keys()

3061

clients_data = { (key.decode("utf-8")

3062

if isinstance(key, bytes)

3063

else key): value

3064

for key, value in

3065

bytes_clients_data.items() }

3066

del bytes_clients_data

3067

for key in clients_data:

3068

value = { (k.decode("utf-8")

3069

if isinstance(k, bytes) else k): v

3070

for k, v in

3071

clients_data[key].items() }

3072

clients_data[key] = value

3073

# .client_structure

3074

value["client_structure"] = [

3075

(s.decode("utf-8")

3076

if isinstance(s, bytes)

3077

else s) for s in

3078

value["client_structure"] ]

3079

# .name & .host

3080

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

3081

if isinstance(value[k], bytes):

3082

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

3083

## old_client_settings

3084

# .keys()

3085

old_client_settings = {

3086

(key.decode("utf-8")

3087

if isinstance(key, bytes)

3088

else key): value

3089

for key, value in

3090

bytes_old_client_settings.items() }

3091

del bytes_old_client_settings

3092

# .host

3093

for value in old_client_settings.values():

3094

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

3095

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

3096

.decode("utf-8"))

2566

clients_data, old_client_settings = (pickle.load

2567

(stored_state))

3097

2568

os.remove(stored_state_path)

3098

2569

except IOError as e:

3099

2570

if e.errno == errno.ENOENT:

3100

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

3101

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

2571

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

2572

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

3102

2573

else:

3103

2574

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

3104

2575

exc_info=e)

3105

2576

raise

3106

2577

except EOFError as e:

3107

2578

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

3108

"EOFError:",

3109

exc_info=e)

2579

"EOFError:", exc_info=e)

3110

2580

3111

2581

with PGPEngine() as pgp:

3112

for client_name, client in clients_data.items():

2582

for client_name, client in clients_data.iteritems():

3113

2583

# Skip removed clients

3114

2584

if client_name not in client_settings:

3115

2585

continue

3124

2594

# For each value in new config, check if it

3125

2595

# differs from the old config value (Except for

3126

2596

# the "secret" attribute)

3127

if (name != "secret"

3128

and (value !=

3129

old_client_settings[client_name][name])):

2597

if (name != "secret" and

2598

value != old_client_settings[client_name]

2599

[name]):

3130

2600

client[name] = value

3131

2601

except KeyError:

3132

2602

pass

3133

2603

3134

2604

# Clients who has passed its expire date can still be

3135

# enabled if its last checker was successful. A Client

2605

# enabled if its last checker was successful. Clients

3136

2606

# whose checker succeeded before we stored its state is

3137

2607

# assumed to have successfully run all checkers during

3138

2608

# downtime.

3140

2610

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

3141

2611

if not client["last_checked_ok"]:

3142

2612

logger.warning(

3143

"disabling client {} - Client never "

3144

"performed a successful checker".format(

3145

client_name))

2613

"disabling client {0} - Client never "

2614

"performed a successful checker"

2615

.format(client_name))

3146

2616

client["enabled"] = False

3147

2617

elif client["last_checker_status"] != 0:

3148

2618

logger.warning(

3149

"disabling client {} - Client last"

3150

" checker failed with error code"

3151

" {}".format(

3152

client_name,

3153

client["last_checker_status"]))

2619

"disabling client {0} - Client "

2620

"last checker failed with error code {1}"

2621

.format(client_name,

2622

client["last_checker_status"]))

3154

2623

client["enabled"] = False

3155

2624

else:

3156

client["expires"] = (

3157

datetime.datetime.utcnow()

3158

+ client["timeout"])

2625

client["expires"] = (datetime.datetime

2626

.utcnow()

2627

+ client["timeout"])

3159

2628

logger.debug("Last checker succeeded,"

3160

" keeping {} enabled".format(

3161

client_name))

2629

" keeping {0} enabled"

2630

.format(client_name))

3162

2631

try:

3163

client["secret"] = pgp.decrypt(

3164

client["encrypted_secret"],

3165

client_settings[client_name]["secret"])

2632

client["secret"] = (

2633

pgp.decrypt(client["encrypted_secret"],

2634

client_settings[client_name]

2635

["secret"]))

3166

2636

except PGPError:

3167

2637

# If decryption fails, we use secret from new settings

3168

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

3169

client_name))

3170

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

3171

["secret"])

2638

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

2639

.format(client_name))

2640

client["secret"] = (

2641

client_settings[client_name]["secret"])

3172

2642

3173

2643

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

3174

2644

for client_name in (set(old_client_settings)

3179

2649

clients_data[client_name] = client_settings[client_name]

3180

2650

3181

2651

# Create all client objects

3182

for client_name, client in clients_data.items():

2652

for client_name, client in clients_data.iteritems():

3183

2653

tcp_server.clients[client_name] = client_class(

3184

name = client_name,

3185

settings = client,

2654

name = client_name, settings = client,

3186

2655

server_settings = server_settings)

3187

2656

3188

2657

if not tcp_server.clients:

3190

2659

3191

2660

if not foreground:

3192

2661

if pidfile is not None:

3193

pid = os.getpid()

3194

2662

try:

3195

2663

with pidfile:

3196

print(pid, file=pidfile)

2664

pid = os.getpid()

2665

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

3197

2666

except IOError:

3198

2667

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

3199

2668

pidfilename, pid)

3200

2669

del pidfile

3201

2670

del pidfilename

3202

2671

3203

for termsig in (signal.SIGHUP, signal.SIGTERM):

3204

GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,

3205

lambda: main_loop.quit() and False)

2672

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

2673

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

3206

2674

3207

2675

if use_dbus:

3208

3209

@alternate_dbus_interfaces(

3210

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

3211

class MandosDBusService(DBusObjectWithObjectManager):

2676

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

2677

"se.bsnet.fukt.Mandos"})

2678

class MandosDBusService(DBusObjectWithProperties):

3212

2679

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

3213

3214

2680

def __init__(self):

3215

2681

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

3216

3217

2682

_interface = "se.recompile.Mandos"

3218

2683

2684

@dbus_interface_annotations(_interface)

2685

def _foo(self):

2686

return { "org.freedesktop.DBus.Property"

2687

".EmitsChangedSignal":

2688

"false"}

2689

3219

2690

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

3220

2691

def ClientAdded(self, objpath):

3221

2692

"D-Bus signal"

3226

2697

"D-Bus signal"

3227

2698

pass

3228

2699

3229

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

3230

"true"})

3231

2700

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

3232

2701

def ClientRemoved(self, objpath, name):

3233

2702

"D-Bus signal"

3234

2703

pass

3235

2704

3236

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

3237

"true"})

3238

2705

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

3239

2706

def GetAllClients(self):

3240

2707

"D-Bus method"

3241

return dbus.Array(c.dbus_object_path for c in

3242

tcp_server.clients.values())

2708

return dbus.Array(c.dbus_object_path

2709

for c in

2710

tcp_server.clients.itervalues())

3243

2711

3244

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

3245

"true"})

3246

2712

@dbus.service.method(_interface,

3247

2713

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

3248

2714

def GetAllClientsWithProperties(self):

3249

2715

"D-Bus method"

3250

2716

return dbus.Dictionary(

3251

{ c.dbus_object_path: c.GetAll(

3252

"se.recompile.Mandos.Client")

3253

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

2717

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

2718

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

3254

2719

signature="oa{sv}")

3255

2720

3256

2721

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

3257

2722

def RemoveClient(self, object_path):

3258

2723

"D-Bus method"

3259

for c in tcp_server.clients.values():

2724

for c in tcp_server.clients.itervalues():

3260

2725

if c.dbus_object_path == object_path:

3261

2726

del tcp_server.clients[c.name]

3262

2727

c.remove_from_connection()

3263

# Don't signal the disabling

2728

# Don't signal anything except ClientRemoved

3264

2729

c.disable(quiet=True)

3265

# Emit D-Bus signal for removal

3266

self.client_removed_signal(c)

2730

# Emit D-Bus signal

2731

self.ClientRemoved(object_path, c.name)

3267

2732

return

3268

2733

raise KeyError(object_path)

3269

2734

3270

2735

del _interface

3271

3272

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

3273

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

3274

def GetManagedObjects(self):

3275

"""D-Bus method"""

3276

return dbus.Dictionary(

3277

{ client.dbus_object_path:

3278

dbus.Dictionary(

3279

{ interface: client.GetAll(interface)

3280

for interface in

3281

client._get_all_interface_names()})

3282

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

3283

3284

def client_added_signal(self, client):

3285

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

3286

if use_dbus:

3287

# New standard signal

3288

self.InterfacesAdded(

3289

client.dbus_object_path,

3290

dbus.Dictionary(

3291

{ interface: client.GetAll(interface)

3292

for interface in

3293

client._get_all_interface_names()}))

3294

# Old signal

3295

self.ClientAdded(client.dbus_object_path)

3296

3297

def client_removed_signal(self, client):

3298

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

3299

if use_dbus:

3300

# New standard signal

3301

self.InterfacesRemoved(

3302

client.dbus_object_path,

3303

client._get_all_interface_names())

3304

# Old signal

3305

self.ClientRemoved(client.dbus_object_path,

3306

client.name)

3307

2736

3308

2737

mandos_dbus_service = MandosDBusService()

3309

2738

3310

2739

def cleanup():

3311

2740

"Cleanup function; run on exit"

3312

if zeroconf:

3313

service.cleanup()

2741

service.cleanup()

3314

2742

3315

2743

multiprocessing.active_children()

3316

2744

wnull.close()

3322

2750

# removed/edited, old secret will thus be unrecovable.

3323

2751

clients = {}

3324

2752

with PGPEngine() as pgp:

3325

for client in tcp_server.clients.values():

2753

for client in tcp_server.clients.itervalues():

3326

2754

key = client_settings[client.name]["secret"]

3327

2755

client.encrypted_secret = pgp.encrypt(client.secret,

3328

2756

key)

3330

2758

3331

2759

# A list of attributes that can not be pickled

3332

2760

# + secret.

3333

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

3334

"checker", "server_settings" }

3335

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

3336

.Object):

2761

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

2762

"checker", "server_settings"))

2763

for name, typ in (inspect.getmembers

2764

(dbus.service.Object)):

3337

2765

exclude.add(name)

3338

2766

3339

2767

client_dict["encrypted_secret"] = (client

3346

2774

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

3347

2775

3348

2776

try:

3349

with tempfile.NamedTemporaryFile(

3350

mode='wb',

3351

suffix=".pickle",

3352

prefix='clients-',

3353

dir=os.path.dirname(stored_state_path),

3354

delete=False) as stored_state:

3355

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

3356

protocol = 2)

3357

tempname = stored_state.name

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:

2781

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

2782

tempname=stored_state.name

3358

2783

os.rename(tempname, stored_state_path)

3359

2784

except (IOError, OSError) as e:

3360

2785

if not debug:

3363

2788

except NameError:

3364

2789

pass

3365

2790

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

3366

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

2791

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

3367

2792

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

3368

2793

else:

3369

2794

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

3375

2800

name, client = tcp_server.clients.popitem()

3376

2801

if use_dbus:

3377

2802

client.remove_from_connection()

3378

# Don't signal the disabling

2803

# Don't signal anything except ClientRemoved

3379

2804

client.disable(quiet=True)

3380

# Emit D-Bus signal for removal

3381

2805

if use_dbus:

3382

mandos_dbus_service.client_removed_signal(client)

2806

# Emit D-Bus signal

2807

mandos_dbus_service.ClientRemoved(client

2808

.dbus_object_path,

2809

client.name)

3383

2810

client_settings.clear()

3384

2811

3385

2812

atexit.register(cleanup)

3386

2813

3387

for client in tcp_server.clients.values():

2814

for client in tcp_server.clients.itervalues():

3388

2815

if use_dbus:

3389

# Emit D-Bus signal for adding

3390

mandos_dbus_service.client_added_signal(client)

2816

# Emit D-Bus signal

2817

mandos_dbus_service.ClientAdded(client.dbus_object_path)

3391

2818

# Need to initiate checking of clients

3392

2819

if client.enabled:

3393

2820

client.init_checker()

3396

2823

tcp_server.server_activate()

3397

2824

3398

2825

# Find out what port we got

3399

if zeroconf:

3400

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

2826

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

3401

2827

if use_ipv6:

3402

2828

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

3403

2829

" flowinfo %d, scope_id %d",

3409

2835

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

3410

2836

3411

2837

try:

3412

if zeroconf:

3413

# From the Avahi example code

3414

try:

3415

service.activate()

3416

except dbus.exceptions.DBusException as error:

3417

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

3418

cleanup()

3419

sys.exit(1)

3420

# End of Avahi example code

2838

# From the Avahi example code

2839

try:

2840

service.activate()

2841

except dbus.exceptions.DBusException as error:

2842

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

2843

cleanup()

2844

sys.exit(1)

2845

# End of Avahi example code

3421

2846

3422

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

3423

lambda *args, **kwargs:

3424

(tcp_server.handle_request

3425

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

2847

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

2848

lambda *args, **kwargs:

2849

(tcp_server.handle_request

2850

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

3426

2851

3427

2852

logger.debug("Starting main loop")

3428

2853

main_loop.run()

3438

2863

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

3439

2864

cleanup()

3440

2865

3441

3442

2866

if __name__ == '__main__':

3443

2867

main()