/mandos/release : revision 237.7.333

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#!/usr/bin/python

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#!/usr/bin/python2.7

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

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#

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

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

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#

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# Everything else is

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#

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

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

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from future_builtins import *

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import SocketServer as socketserver

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try:

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import SocketServer as socketserver

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except ImportError:

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import socketserver

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import socket

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import argparse

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import datetime

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import gnutls.library.functions

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import gnutls.library.constants

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import gnutls.library.types

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import ConfigParser as configparser

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try:

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import ConfigParser as configparser

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except ImportError:

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import configparser

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import sys

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import re

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import os

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import struct

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import fcntl

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import functools

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import cPickle as pickle

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try:

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import cPickle as pickle

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except ImportError:

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import pickle

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import multiprocessing

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import types

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import binascii

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import tempfile

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import itertools

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import collections

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import codecs

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import dbus

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import dbus.service

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import gobject

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try:

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import gobject

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except ImportError:

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from gi.repository import GObject as gobject

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import avahi

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from dbus.mainloop.glib import DBusGMainLoop

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import ctypes

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except ImportError:

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SO_BINDTODEVICE = None

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version = "1.6.1"

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if sys.version_info.major == 2:

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str = unicode

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version = "1.6.9"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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syslogger = (logging.handlers.SysLogHandler

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(facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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

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syslogger = None

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try:

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if_nametoindex = (ctypes.cdll.LoadLibrary

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

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.if_nametoindex)

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if_nametoindex = ctypes.cdll.LoadLibrary(

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

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except (OSError, AttributeError):

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def if_nametoindex(interface):

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

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

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

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ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

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

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interface))

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

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ifreq[16:20])[0]

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

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

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return interface_index

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

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"""init logger and add loglevel"""

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global syslogger

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syslogger = (logging.handlers.SysLogHandler(

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facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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address = "/dev/log"))

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syslogger.setFormatter(logging.Formatter

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

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' %(message)s'))

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class PGPEngine(object):

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

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def __init__(self):

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

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self.gnupgargs = ['--batch',

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def encrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(dir=self.tempdir

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) as passfile:

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with tempfile.NamedTemporaryFile(

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dir=self.tempdir) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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def decrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(dir = self.tempdir

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) as passfile:

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with tempfile.NamedTemporaryFile(

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dir = self.tempdir) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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stdin = subprocess.PIPE,

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stdout = subprocess.PIPE,

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stderr = subprocess.PIPE)

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decrypted_plaintext, err = proc.communicate(input

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= data)

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

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if proc.returncode != 0:

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raise PGPError(err)

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return decrypted_plaintext

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class AvahiError(Exception):

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

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self.value = value

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

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def __unicode__(self):

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return unicode(repr(self.value))

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

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**kwargs)

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class AvahiServiceError(AvahiError):

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pass

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class AvahiGroupError(AvahiError):

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pass

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bus: dbus.SystemBus()

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"""

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

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

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

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protocol = avahi.PROTO_UNSPEC, bus = None):

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def __init__(self,

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interface = avahi.IF_UNSPEC,

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name = None,

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servicetype = None,

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port = None,

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TXT = None,

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domain = "",

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host = "",

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max_renames = 32768,

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protocol = avahi.PROTO_UNSPEC,

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bus = None):

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self.interface = interface

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self.name = name

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self.type = servicetype

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self.bus = bus

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self.entry_group_state_changed_match = None

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def rename(self):

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def rename(self, remove=True):

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

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if self.rename_count >= self.max_renames:

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

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" after %i retries, exiting.",

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self.rename_count)

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raise AvahiServiceError("Too many renames")

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self.name = unicode(self.server

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.GetAlternativeServiceName(self.name))

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self.name = str(

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self.server.GetAlternativeServiceName(self.name))

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self.rename_count += 1

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

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self.name)

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self.remove()

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if remove:

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self.remove()

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

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

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self.cleanup()

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os._exit(1)

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self.rename_count += 1

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if (error.get_dbus_name()

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

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

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return self.rename(remove=False)

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else:

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

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self.cleanup()

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os._exit(1)

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def remove(self):

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

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

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

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unicode(error))

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

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.format(error))

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str(error))

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

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def cleanup(self):

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

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

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

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

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bad_states = { avahi.SERVER_INVALID:

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"Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION:

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"Zeroconf server name collision",

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avahi.SERVER_FAILURE:

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"Zeroconf server failure" }

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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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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

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

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396

self.cleanup()

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397

elif state == avahi.SERVER_RUNNING:

370

self.add()

398

try:

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self.add()

400

except dbus.exceptions.DBusException as error:

401

if (error.get_dbus_name()

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

403

logger.info("Local Zeroconf service name"

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" collision.")

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return self.rename(remove=False)

406

else:

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

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self.cleanup()

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os._exit(1)

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else:

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if error is None:

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

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follow_name_owner_changes=True),

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avahi.DBUS_INTERFACE_SERVER)

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self.server.connect_to_signal("StateChanged",

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self.server_state_changed)

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self.server_state_changed)

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

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class AvahiServiceToSyslog(AvahiService):

391

def rename(self):

430

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

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

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ret = AvahiService.rename(self)

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syslogger.setFormatter(logging.Formatter

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

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

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.format(self.name)))

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

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syslogger.setFormatter(logging.Formatter(

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

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.format(self.name)))

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return ret

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def timedelta_to_milliseconds(td):

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"Convert a datetime.timedelta() to milliseconds"

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

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+ (td.seconds * 1000)

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+ (td.microseconds // 1000))

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def call_pipe(connection, # : multiprocessing.Connection

439

func, *args, **kwargs):

440

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

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

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return value on the provided multiprocessing.Connection.

444

"""

445

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

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connection.close()

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class Client(object):

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

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last_checker_status: integer between 0 and 255 reflecting exit

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477

status of last checker. -1 reflects crashed

438

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checker, -2 means no checker completed yet.

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last_checker_signal: The signal which killed the last checker, if

480

last_checker_status is -1

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

440

482

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

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D-Bus identifiers

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

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"last_approval_request", "last_checked_ok",

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

457

client_defaults = { "timeout": "PT5M",

458

"extended_timeout": "PT15M",

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"interval": "PT2M",

460

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

461

"host": "",

462

"approval_delay": "PT0S",

463

"approval_duration": "PT1S",

464

"approved_by_default": "True",

465

"enabled": "True",

466

}

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468

def timeout_milliseconds(self):

469

"Return the 'timeout' attribute in milliseconds"

470

return timedelta_to_milliseconds(self.timeout)

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472

def extended_timeout_milliseconds(self):

473

"Return the 'extended_timeout' attribute in milliseconds"

474

return timedelta_to_milliseconds(self.extended_timeout)

475

476

def interval_milliseconds(self):

477

"Return the 'interval' attribute in milliseconds"

478

return timedelta_to_milliseconds(self.interval)

479

480

def approval_delay_milliseconds(self):

481

return timedelta_to_milliseconds(self.approval_delay)

499

client_defaults = {

500

"timeout": "PT5M",

501

"extended_timeout": "PT15M",

502

"interval": "PT2M",

503

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

504

"host": "",

505

"approval_delay": "PT0S",

506

"approval_duration": "PT1S",

507

"approved_by_default": "True",

508

"enabled": "True",

509

}

482

510

483

511

@staticmethod

484

512

def config_parser(config):

500

528

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

501

529

"enabled")

502

530

531

# Uppercase and remove spaces from fingerprint for later

532

# comparison purposes with return value from the

533

# fingerprint() function

503

534

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

504

535

.replace(" ", ""))

505

536

if "secret" in section:

510

541

"rb") as secfile:

511

542

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

512

543

else:

513

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

544

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

514

545

.format(section))

515

546

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

516

547

client["extended_timeout"] = string_to_delta(

533

564

server_settings = {}

534

565

self.server_settings = server_settings

535

566

# adding all client settings

536

for setting, value in settings.iteritems():

567

for setting, value in settings.items():

537

568

setattr(self, setting, value)

538

569

539

570

if self.enabled:

547

578

self.expires = None

548

579

549

580

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

550

# Uppercase and remove spaces from fingerprint for later

551

# comparison purposes with return value from the fingerprint()

552

# function

553

581

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

554

582

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

555

583

datetime.datetime.utcnow())

562

590

self.current_checker_command = None

563

591

self.approved = None

564

592

self.approvals_pending = 0

565

self.changedstate = (multiprocessing_manager

566

.Condition(multiprocessing_manager

567

.Lock()))

568

self.client_structure = [attr for attr in

569

self.__dict__.iterkeys()

593

self.changedstate = multiprocessing_manager.Condition(

594

multiprocessing_manager.Lock())

595

self.client_structure = [attr

596

for attr in self.__dict__.iterkeys()

570

597

if not attr.startswith("_")]

571

598

self.client_structure.append("client_structure")

572

599

573

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

574

lambda obj:

575

isinstance(obj,

576

property)):

600

for name, t in inspect.getmembers(

601

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

577

602

if not name.startswith("_"):

578

603

self.client_structure.append(name)

579

604

621

646

# and every interval from then on.

622

647

if self.checker_initiator_tag is not None:

623

648

gobject.source_remove(self.checker_initiator_tag)

624

self.checker_initiator_tag = (gobject.timeout_add

625

(self.interval_milliseconds(),

626

self.start_checker))

649

self.checker_initiator_tag = gobject.timeout_add(

650

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

651

self.start_checker)

627

652

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

628

653

if self.disable_initiator_tag is not None:

629

654

gobject.source_remove(self.disable_initiator_tag)

630

self.disable_initiator_tag = (gobject.timeout_add

631

(self.timeout_milliseconds(),

632

self.disable))

655

self.disable_initiator_tag = gobject.timeout_add(

656

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

633

657

# Also start a new checker *right now*.

634

658

self.start_checker()

635

659

636

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

660

def checker_callback(self, source, condition, connection,

661

command):

637

662

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

638

663

self.checker_callback_tag = None

639

664

self.checker = None

640

if os.WIFEXITED(condition):

641

self.last_checker_status = os.WEXITSTATUS(condition)

665

# Read return code from connection (see call_pipe)

666

returncode = connection.recv()

667

connection.close()

668

669

if returncode >= 0:

670

self.last_checker_status = returncode

671

self.last_checker_signal = None

642

672

if self.last_checker_status == 0:

643

673

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

644

674

vars(self))

645

675

self.checked_ok()

646

676

else:

647

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

648

vars(self))

677

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

649

678

else:

650

679

self.last_checker_status = -1

680

self.last_checker_signal = -returncode

651

681

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

652

682

vars(self))

683

return False

653

684

654

685

def checked_ok(self):

655

686

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

656

687

self.last_checked_ok = datetime.datetime.utcnow()

657

688

self.last_checker_status = 0

689

self.last_checker_signal = None

658

690

self.bump_timeout()

659

691

660

692

def bump_timeout(self, timeout=None):

665

697

gobject.source_remove(self.disable_initiator_tag)

666

698

self.disable_initiator_tag = None

667

699

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

668

self.disable_initiator_tag = (gobject.timeout_add

669

(timedelta_to_milliseconds

670

(timeout), self.disable))

700

self.disable_initiator_tag = gobject.timeout_add(

701

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

671

702

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

672

703

673

704

def need_approval(self):

687

718

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

688

719

# should be.

689

720

690

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

691

try:

692

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

693

except (AttributeError, OSError) as error:

694

if (isinstance(error, OSError)

695

and error.errno != errno.ECHILD):

696

raise error

697

else:

698

if pid:

699

logger.warning("Checker was a zombie")

700

gobject.source_remove(self.checker_callback_tag)

701

self.checker_callback(pid, status,

702

self.current_checker_command)

721

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

722

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

723

self.checker.join()

724

self.checker = None

703

725

# Start a new checker if needed

704

726

if self.checker is None:

705

727

# Escape attributes for the shell

706

escaped_attrs = dict(

707

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

708

for attr in

709

self.runtime_expansions)

728

escaped_attrs = {

729

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

730

for attr in self.runtime_expansions }

710

731

try:

711

732

command = self.checker_command % escaped_attrs

712

733

except TypeError as error:

713

734

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

714

self.checker_command, exc_info=error)

715

return True # Try again later

735

self.checker_command,

736

exc_info=error)

737

return True # Try again later

716

738

self.current_checker_command = command

717

try:

718

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

719

command, self.name)

720

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

721

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

722

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

723

# always replaced by /dev/null.)

724

# The exception is when not debugging but nevertheless

725

# running in the foreground; use the previously

726

# created wnull.

727

popen_args = {}

728

if (not self.server_settings["debug"]

729

and self.server_settings["foreground"]):

730

popen_args.update({"stdout": wnull,

731

"stderr": wnull })

732

self.checker = subprocess.Popen(command,

733

close_fds=True,

734

shell=True, cwd="/",

735

**popen_args)

736

except OSError as error:

737

logger.error("Failed to start subprocess",

738

exc_info=error)

739

return True

740

self.checker_callback_tag = (gobject.child_watch_add

741

(self.checker.pid,

742

self.checker_callback,

743

data=command))

744

# The checker may have completed before the gobject

745

# watch was added. Check for this.

746

try:

747

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

748

except OSError as error:

749

if error.errno == errno.ECHILD:

750

# This should never happen

751

logger.error("Child process vanished",

752

exc_info=error)

753

return True

754

raise

755

if pid:

756

gobject.source_remove(self.checker_callback_tag)

757

self.checker_callback(pid, status, command)

739

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

740

self.name)

741

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

742

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

743

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

744

# always replaced by /dev/null.)

745

# The exception is when not debugging but nevertheless

746

# running in the foreground; use the previously

747

# created wnull.

748

popen_args = { "close_fds": True,

749

"shell": True,

750

"cwd": "/" }

751

if (not self.server_settings["debug"]

752

and self.server_settings["foreground"]):

753

popen_args.update({"stdout": wnull,

754

"stderr": wnull })

755

pipe = multiprocessing.Pipe(duplex = False)

756

self.checker = multiprocessing.Process(

757

target = call_pipe,

758

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

759

kwargs = popen_args)

760

self.checker.start()

761

self.checker_callback_tag = gobject.io_add_watch(

762

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

763

self.checker_callback, pipe[0], command)

758

764

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

759

765

return True

760

766

772

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

767

773

return

768

774

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

769

try:

770

self.checker.terminate()

771

#time.sleep(0.5)

772

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

773

# self.checker.kill()

774

except OSError as error:

775

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

776

raise

775

self.checker.terminate()

777

776

self.checker = None

778

777

779

778

780

def dbus_service_property(dbus_interface, signature="v",

781

access="readwrite", byte_arrays=False):

779

def dbus_service_property(dbus_interface,

780

signature="v",

781

access="readwrite",

782

byte_arrays=False):

782

783

"""Decorators for marking methods of a DBusObjectWithProperties to

783

784

become properties on the D-Bus.

784

785

793

794

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

794

795

if byte_arrays and signature != "ay":

795

796

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

796

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

797

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

798

797

799

def decorator(func):

798

800

func._dbus_is_property = True

799

801

func._dbus_interface = dbus_interface

804

806

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

805

807

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

806

808

return func

809

807

810

return decorator

808

811

809

812

818

821

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

819

822

"false"}

820

823

"""

824

821

825

def decorator(func):

822

826

func._dbus_is_interface = True

823

827

func._dbus_interface = dbus_interface

824

828

func._dbus_name = dbus_interface

825

829

return func

830

826

831

return decorator

827

832

828

833

830

835

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

831

836

Usage:

832

837

838

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

839

"org.freedesktop.DBus.Property."

840

"EmitsChangedSignal": "false"})

833

841

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

834

842

access="r")

835

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

836

"org.freedesktop.DBus.Property."

837

"EmitsChangedSignal": "false"})

838

843

def Property_dbus_property(self):

839

844

return dbus.Boolean(False)

845

846

See also the DBusObjectWithAnnotations class.

840

847

"""

848

841

849

def decorator(func):

842

850

func._dbus_annotations = annotations

843

851

return func

852

844

853

return decorator

845

854

846

855

847

856

class DBusPropertyException(dbus.exceptions.DBusException):

848

857

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

849

858

"""

850

def __unicode__(self):

851

return unicode(str(self))

859

pass

852

860

853

861

854

862

class DBusPropertyAccessException(DBusPropertyException):

863

871

pass

864

872

865

873

866

class DBusObjectWithProperties(dbus.service.Object):

867

"""A D-Bus object with properties.

874

class DBusObjectWithAnnotations(dbus.service.Object):

875

"""A D-Bus object with annotations.

868

876

869

Classes inheriting from this can use the dbus_service_property

870

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

871

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

877

Classes inheriting from this can use the dbus_annotations

878

decorator to add annotations to methods or signals.

872

879

"""

873

880

874

881

@staticmethod

878

885

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

879

886

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

880

887

"""

881

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

888

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

882

889

False)

883

890

884

891

def _get_all_dbus_things(self, thing):

885

892

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

886

893

"""

887

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

888

name),

894

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

889

895

athing.__get__(self))

890

896

for cls in self.__class__.__mro__

891

897

for name, athing in

892

inspect.getmembers(cls,

893

self._is_dbus_thing(thing)))

898

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

899

900

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

901

out_signature = "s",

902

path_keyword = 'object_path',

903

connection_keyword = 'connection')

904

def Introspect(self, object_path, connection):

905

"""Overloading of standard D-Bus method.

906

907

Inserts annotation tags on methods and signals.

908

"""

909

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

910

connection)

911

try:

912

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

913

914

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

915

# Add annotation tags

916

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

917

for tag in if_tag.getElementsByTagName(typ):

918

annots = dict()

919

for name, prop in (self.

920

_get_all_dbus_things(typ)):

921

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

922

and prop._dbus_interface

923

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

924

annots.update(getattr(

925

prop, "_dbus_annotations", {}))

926

for name, value in annots.items():

927

ann_tag = document.createElement(

928

"annotation")

929

ann_tag.setAttribute("name", name)

930

ann_tag.setAttribute("value", value)

931

tag.appendChild(ann_tag)

932

# Add interface annotation tags

933

for annotation, value in dict(

934

itertools.chain.from_iterable(

935

annotations().items()

936

for name, annotations

937

in self._get_all_dbus_things("interface")

938

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

939

)).items():

940

ann_tag = document.createElement("annotation")

941

ann_tag.setAttribute("name", annotation)

942

ann_tag.setAttribute("value", value)

943

if_tag.appendChild(ann_tag)

944

# Fix argument name for the Introspect method itself

945

if (if_tag.getAttribute("name")

946

== dbus.INTROSPECTABLE_IFACE):

947

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

948

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

949

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

950

if (arg.getAttribute("direction")

951

== "out"):

952

arg.setAttribute("name",

953

"xml_data")

954

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

955

document.unlink()

956

except (AttributeError, xml.dom.DOMException,

957

xml.parsers.expat.ExpatError) as error:

958

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

959

exc_info=error)

960

return xmlstring

961

962

963

class DBusObjectWithProperties(DBusObjectWithAnnotations):

964

"""A D-Bus object with properties.

965

966

Classes inheriting from this can use the dbus_service_property

967

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

968

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

969

"""

894

970

895

971

def _get_dbus_property(self, interface_name, property_name):

896

972

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

897

973

property with the specified name and interface.

898

974

"""

899

for cls in self.__class__.__mro__:

900

for name, value in (inspect.getmembers

901

(cls,

902

self._is_dbus_thing("property"))):

975

for cls in self.__class__.__mro__:

976

for name, value in inspect.getmembers(

977

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

903

978

if (value._dbus_name == property_name

904

979

and value._dbus_interface == interface_name):

905

980

return value.__get__(self)

906

981

907

982

# No such property

908

raise DBusPropertyNotFound(self.dbus_object_path + ":"

909

+ interface_name + "."

910

+ property_name)

911

912

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

983

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

984

self.dbus_object_path, interface_name, property_name))

985

986

@classmethod

987

def _get_all_interface_names(cls):

988

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

989

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

990

"_dbus_interface", None)

991

for x in (inspect.getmro(cls))

992

for attr in dir(x))

993

if name is not None)

994

995

@dbus.service.method(dbus.PROPERTIES_IFACE,

996

in_signature="ss",

913

997

out_signature="v")

914

998

def Get(self, interface_name, property_name):

915

999

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

933

1017

# The byte_arrays option is not supported yet on

934

1018

# signatures other than "ay".

935

1019

if prop._dbus_signature != "ay":

936

raise ValueError

1020

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

1021

"'ay' signature {!r}"

1022

.format(prop._dbus_signature))

937

1023

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

938

1024

for byte in value))

939

1025

prop(value)

940

1026

941

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

1027

@dbus.service.method(dbus.PROPERTIES_IFACE,

1028

in_signature="s",

942

1029

out_signature="a{sv}")

943

1030

def GetAll(self, interface_name):

944

1031

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

959

1046

if not hasattr(value, "variant_level"):

960

1047

properties[name] = value

961

1048

continue

962

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

963

value.variant_level+1)

1049

properties[name] = type(value)(

1050

value, variant_level = value.variant_level + 1)

964

1051

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

965

1052

1053

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

1054

def PropertiesChanged(self, interface_name, changed_properties,

1055

invalidated_properties):

1056

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

1057

standard.

1058

"""

1059

pass

1060

966

1061

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

967

1062

out_signature="s",

968

1063

path_keyword='object_path',

972

1067

973

1068

Inserts property tags and interface annotation tags.

974

1069

"""

975

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

976

connection)

1070

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1071

object_path,

1072

connection)

977

1073

try:

978

1074

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

1075

979

1076

def make_tag(document, name, prop):

980

1077

e = document.createElement("property")

981

1078

e.setAttribute("name", name)

982

1079

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

983

1080

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

984

1081

return e

1082

985

1083

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

986

1084

# Add property tags

987

1085

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

990

1088

if prop._dbus_interface

991

1089

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

992

1090

if_tag.appendChild(tag)

993

# Add annotation tags

994

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

995

for tag in if_tag.getElementsByTagName(typ):

996

annots = dict()

997

for name, prop in (self.

998

_get_all_dbus_things(typ)):

999

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

1000

and prop._dbus_interface

1001

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

1002

annots.update(getattr

1003

(prop,

1004

"_dbus_annotations",

1005

{}))

1006

for name, value in annots.iteritems():

1007

ann_tag = document.createElement(

1008

"annotation")

1009

ann_tag.setAttribute("name", name)

1010

ann_tag.setAttribute("value", value)

1011

tag.appendChild(ann_tag)

1012

# Add interface annotation tags

1013

for annotation, value in dict(

1014

itertools.chain.from_iterable(

1015

annotations().iteritems()

1016

for name, annotations in

1017

self._get_all_dbus_things("interface")

1018

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

1019

)).iteritems():

1020

ann_tag = document.createElement("annotation")

1021

ann_tag.setAttribute("name", annotation)

1022

ann_tag.setAttribute("value", value)

1023

if_tag.appendChild(ann_tag)

1091

# Add annotation tags for properties

1092

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

1093

annots = dict()

1094

for name, prop in self._get_all_dbus_things(

1095

"property"):

1096

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

1097

and prop._dbus_interface

1098

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

1099

annots.update(getattr(

1100

prop, "_dbus_annotations", {}))

1101

for name, value in annots.items():

1102

ann_tag = document.createElement(

1103

"annotation")

1104

ann_tag.setAttribute("name", name)

1105

ann_tag.setAttribute("value", value)

1106

tag.appendChild(ann_tag)

1024

1107

# Add the names to the return values for the

1025

1108

# "org.freedesktop.DBus.Properties" methods

1026

1109

if (if_tag.getAttribute("name")

1044

1127

exc_info=error)

1045

1128

return xmlstring

1046

1129

1130

try:

1131

dbus.OBJECT_MANAGER_IFACE

1132

except AttributeError:

1133

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

1134

1135

class DBusObjectWithObjectManager(DBusObjectWithAnnotations):

1136

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

1137

1138

Classes inheriting from this exposes the standard

1139

GetManagedObjects call and the InterfacesAdded and

1140

InterfacesRemoved signals on the standard

1141

"org.freedesktop.DBus.ObjectManager" interface.

1142

1143

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

1144

manually.

1145

"""

1146

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

1147

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

1148

def GetManagedObjects(self):

1149

"""This function must be overridden"""

1150

raise NotImplementedError()

1151

1152

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,

1153

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

1154

def InterfacesAdded(self, object_path, interfaces_and_properties):

1155

pass

1156

1157

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,

1158

signature = "oas")

1159

def InterfacesRemoved(self, object_path, interfaces):

1160

pass

1161

1162

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1163

out_signature = "s",

1164

path_keyword = 'object_path',

1165

connection_keyword = 'connection')

1166

def Introspect(self, object_path, connection):

1167

"""Overloading of standard D-Bus method.

1168

1169

Override return argument name of GetManagedObjects to be

1170

"objpath_interfaces_and_properties"

1171

"""

1172

xmlstring = DBusObjectWithAnnotations(self, object_path,

1173

connection)

1174

try:

1175

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

1176

1177

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

1178

# Fix argument name for the GetManagedObjects method

1179

if (if_tag.getAttribute("name")

1180

== dbus.OBJECT_MANAGER_IFACE):

1181

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

1182

if (cn.getAttribute("name")

1183

== "GetManagedObjects"):

1184

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

1185

if (arg.getAttribute("direction")

1186

== "out"):

1187

arg.setAttribute(

1188

"name",

1189

"objpath_interfaces"

1190

"_and_properties")

1191

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

1192

document.unlink()

1193

except (AttributeError, xml.dom.DOMException,

1194

xml.parsers.expat.ExpatError) as error:

1195

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

1196

exc_info = error)

1197

return xmlstring

1047

1198

1048

1199

def datetime_to_dbus(dt, variant_level=0):

1049

1200

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

1050

1201

if dt is None:

1051

1202

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

1052

return dbus.String(dt.isoformat(),

1053

variant_level=variant_level)

1203

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

1054

1204

1055

1205

1056

1206

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1076

1226

(from DBusObjectWithProperties) and interfaces (from the

1077

1227

dbus_interface_annotations decorator).

1078

1228

"""

1229

1079

1230

def wrapper(cls):

1080

1231

for orig_interface_name, alt_interface_name in (

1081

alt_interface_names.iteritems()):

1232

alt_interface_names.items()):

1082

1233

attr = {}

1083

1234

interface_names = set()

1084

1235

# Go though all attributes of the class

1086

1237

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

1087

1238

# with the wrong interface name

1088

1239

if (not hasattr(attribute, "_dbus_interface")

1089

or not attribute._dbus_interface

1090

.startswith(orig_interface_name)):

1240

or not attribute._dbus_interface.startswith(

1241

orig_interface_name)):

1091

1242

continue

1092

1243

# Create an alternate D-Bus interface name based on

1093

1244

# the current name

1094

alt_interface = (attribute._dbus_interface

1095

.replace(orig_interface_name,

1096

alt_interface_name))

1245

alt_interface = attribute._dbus_interface.replace(

1246

orig_interface_name, alt_interface_name)

1097

1247

interface_names.add(alt_interface)

1098

1248

# Is this a D-Bus signal?

1099

1249

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

1100

# Extract the original non-method undecorated

1101

# function by black magic

1102

nonmethod_func = (dict(

1250

if sys.version_info.major == 2:

1251

# Extract the original non-method undecorated

1252

# function by black magic

1253

nonmethod_func = (dict(

1103

1254

zip(attribute.func_code.co_freevars,

1104

attribute.__closure__))["func"]

1105

.cell_contents)

1255

attribute.__closure__))

1256

["func"].cell_contents)

1257

else:

1258

nonmethod_func = attribute

1106

1259

# Create a new, but exactly alike, function

1107

1260

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

1108

1261

# with the alternate D-Bus interface name

1109

new_function = (dbus.service.signal

1110

(alt_interface,

1111

attribute._dbus_signature)

1112

(types.FunctionType(

1113

nonmethod_func.func_code,

1114

nonmethod_func.func_globals,

1115

nonmethod_func.func_name,

1116

nonmethod_func.func_defaults,

1117

nonmethod_func.func_closure)))

1262

if sys.version_info.major == 2:

1263

new_function = types.FunctionType(

1264

nonmethod_func.func_code,

1265

nonmethod_func.func_globals,

1266

nonmethod_func.func_name,

1267

nonmethod_func.func_defaults,

1268

nonmethod_func.func_closure)

1269

else:

1270

new_function = types.FunctionType(

1271

nonmethod_func.__code__,

1272

nonmethod_func.__globals__,

1273

nonmethod_func.__name__,

1274

nonmethod_func.__defaults__,

1275

nonmethod_func.__closure__)

1276

new_function = (dbus.service.signal(

1277

alt_interface,

1278

attribute._dbus_signature)(new_function))

1118

1279

# Copy annotations, if any

1119

1280

try:

1120

new_function._dbus_annotations = (

1121

dict(attribute._dbus_annotations))

1281

new_function._dbus_annotations = dict(

1282

attribute._dbus_annotations)

1122

1283

except AttributeError:

1123

1284

pass

1124

1285

# Define a creator of a function to call both the

1129

1290

"""This function is a scope container to pass

1130

1291

func1 and func2 to the "call_both" function

1131

1292

outside of its arguments"""

1293

1132

1294

def call_both(*args, **kwargs):

1133

1295

"""This function will emit two D-Bus

1134

1296

signals by calling func1 and func2"""

1135

1297

func1(*args, **kwargs)

1136

1298

func2(*args, **kwargs)

1299

1137

1300

return call_both

1138

1301

# Create the "call_both" function and add it to

1139

1302

# the class

1144

1307

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

1145

1308

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

1146

1309

# to the class.

1147

attr[attrname] = (dbus.service.method

1148

(alt_interface,

1149

attribute._dbus_in_signature,

1150

attribute._dbus_out_signature)

1151

(types.FunctionType

1152

(attribute.func_code,

1153

attribute.func_globals,

1154

attribute.func_name,

1155

attribute.func_defaults,

1156

attribute.func_closure)))

1310

attr[attrname] = (

1311

dbus.service.method(

1312

alt_interface,

1313

attribute._dbus_in_signature,

1314

attribute._dbus_out_signature)

1315

(types.FunctionType(attribute.func_code,

1316

attribute.func_globals,

1317

attribute.func_name,

1318

attribute.func_defaults,

1319

attribute.func_closure)))

1157

1320

# Copy annotations, if any

1158

1321

try:

1159

attr[attrname]._dbus_annotations = (

1160

dict(attribute._dbus_annotations))

1322

attr[attrname]._dbus_annotations = dict(

1323

attribute._dbus_annotations)

1161

1324

except AttributeError:

1162

1325

pass

1163

1326

# Is this a D-Bus property?

1166

1329

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

1167

1330

# property with the alternate D-Bus interface

1168

1331

# name. Add it to the class.

1169

attr[attrname] = (dbus_service_property

1170

(alt_interface,

1171

attribute._dbus_signature,

1172

attribute._dbus_access,

1173

attribute

1174

._dbus_get_args_options

1175

["byte_arrays"])

1176

(types.FunctionType

1177

(attribute.func_code,

1178

attribute.func_globals,

1179

attribute.func_name,

1180

attribute.func_defaults,

1181

attribute.func_closure)))

1332

attr[attrname] = (dbus_service_property(

1333

alt_interface, attribute._dbus_signature,

1334

attribute._dbus_access,

1335

attribute._dbus_get_args_options

1336

["byte_arrays"])

1337

(types.FunctionType(

1338

attribute.func_code,

1339

attribute.func_globals,

1340

attribute.func_name,

1341

attribute.func_defaults,

1342

attribute.func_closure)))

1182

1343

# Copy annotations, if any

1183

1344

try:

1184

attr[attrname]._dbus_annotations = (

1185

dict(attribute._dbus_annotations))

1345

attr[attrname]._dbus_annotations = dict(

1346

attribute._dbus_annotations)

1186

1347

except AttributeError:

1187

1348

pass

1188

1349

# Is this a D-Bus interface?

1191

1352

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

1192

1353

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

1193

1354

# to the class.

1194

attr[attrname] = (dbus_interface_annotations

1195

(alt_interface)

1196

(types.FunctionType

1197

(attribute.func_code,

1198

attribute.func_globals,

1199

attribute.func_name,

1200

attribute.func_defaults,

1201

attribute.func_closure)))

1355

attr[attrname] = (

1356

dbus_interface_annotations(alt_interface)

1357

(types.FunctionType(attribute.func_code,

1358

attribute.func_globals,

1359

attribute.func_name,

1360

attribute.func_defaults,

1361

attribute.func_closure)))

1202

1362

if deprecate:

1203

1363

# Deprecate all alternate interfaces

1204

iname="_AlternateDBusNames_interface_annotation{0}"

1364

iname="_AlternateDBusNames_interface_annotation{}"

1205

1365

for interface_name in interface_names:

1366

1206

1367

@dbus_interface_annotations(interface_name)

1207

1368

def func(self):

1208

1369

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

1209

"true" }

1370

"true" }

1210

1371

# Find an unused name

1211

1372

for aname in (iname.format(i)

1212

1373

for i in itertools.count()):

1216

1377

if interface_names:

1217

1378

# Replace the class with a new subclass of it with

1218

1379

# methods, signals, etc. as created above.

1219

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

1220

(cls,), attr)

1380

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

1381

(cls, ), attr)

1221

1382

return cls

1383

1222

1384

return wrapper

1223

1385

1224

1386

1225

1387

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

1226

"se.bsnet.fukt.Mandos"})

1388

"se.bsnet.fukt.Mandos"})

1227

1389

class ClientDBus(Client, DBusObjectWithProperties):

1228

1390

"""A Client class using D-Bus

1229

1391

1233

1395

"""

1234

1396

1235

1397

runtime_expansions = (Client.runtime_expansions

1236

+ ("dbus_object_path",))

1398

+ ("dbus_object_path", ))

1399

1400

_interface = "se.recompile.Mandos.Client"

1237

1401

1238

1402

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

1239

1403

1242

1406

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

1243

1407

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

1244

1408

# the D-Bus

1245

client_object_name = unicode(self.name).translate(

1409

client_object_name = str(self.name).translate(

1246

1410

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

1247

1411

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

1248

self.dbus_object_path = (dbus.ObjectPath

1249

("/clients/" + client_object_name))

1412

self.dbus_object_path = dbus.ObjectPath(

1413

"/clients/" + client_object_name)

1250

1414

DBusObjectWithProperties.__init__(self, self.bus,

1251

1415

self.dbus_object_path)

1252

1416

1253

def notifychangeproperty(transform_func,

1254

dbus_name, type_func=lambda x: x,

1255

variant_level=1):

1417

def notifychangeproperty(transform_func, dbus_name,

1418

type_func=lambda x: x,

1419

variant_level=1,

1420

invalidate_only=False,

1421

_interface=_interface):

1256

1422

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

1257

1423

its changes to DBus.

1258

1424

1263

1429

to the D-Bus. Default: no transform

1264

1430

variant_level: D-Bus variant level. Default: 1

1265

1431

"""

1266

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

1432

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

1433

1267

1434

def setter(self, value):

1268

1435

if hasattr(self, "dbus_object_path"):

1269

1436

if (not hasattr(self, attrname) or

1270

1437

type_func(getattr(self, attrname, None))

1271

1438

!= type_func(value)):

1272

dbus_value = transform_func(type_func(value),

1273

variant_level

1274

=variant_level)

1275

self.PropertyChanged(dbus.String(dbus_name),

1276

dbus_value)

1439

if invalidate_only:

1440

self.PropertiesChanged(

1441

_interface, dbus.Dictionary(),

1442

dbus.Array((dbus_name, )))

1443

else:

1444

dbus_value = transform_func(

1445

type_func(value),

1446

variant_level = variant_level)

1447

self.PropertyChanged(dbus.String(dbus_name),

1448

dbus_value)

1449

self.PropertiesChanged(

1450

_interface,

1451

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

1452

dbus_value }),

1453

dbus.Array())

1277

1454

setattr(self, attrname, value)

1278

1455

1279

1456

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

1285

1462

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

1286

1463

last_enabled = notifychangeproperty(datetime_to_dbus,

1287

1464

"LastEnabled")

1288

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

1289

type_func = lambda checker:

1290

checker is not None)

1465

checker = notifychangeproperty(

1466

dbus.Boolean, "CheckerRunning",

1467

type_func = lambda checker: checker is not None)

1291

1468

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1292

1469

"LastCheckedOK")

1293

1470

last_checker_status = notifychangeproperty(dbus.Int16,

1296

1473

datetime_to_dbus, "LastApprovalRequest")

1297

1474

approved_by_default = notifychangeproperty(dbus.Boolean,

1298

1475

"ApprovedByDefault")

1299

approval_delay = notifychangeproperty(dbus.UInt64,

1300

"ApprovalDelay",

1301

type_func =

1302

timedelta_to_milliseconds)

1476

approval_delay = notifychangeproperty(

1477

dbus.UInt64, "ApprovalDelay",

1478

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

1303

1479

approval_duration = notifychangeproperty(

1304

1480

dbus.UInt64, "ApprovalDuration",

1305

type_func = timedelta_to_milliseconds)

1481

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

1306

1482

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

1307

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

1308

type_func =

1309

timedelta_to_milliseconds)

1483

timeout = notifychangeproperty(

1484

dbus.UInt64, "Timeout",

1485

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

1310

1486

extended_timeout = notifychangeproperty(

1311

1487

dbus.UInt64, "ExtendedTimeout",

1312

type_func = timedelta_to_milliseconds)

1313

interval = notifychangeproperty(dbus.UInt64,

1314

"Interval",

1315

type_func =

1316

timedelta_to_milliseconds)

1488

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

1489

interval = notifychangeproperty(

1490

dbus.UInt64, "Interval",

1491

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

1317

1492

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

1493

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

1494

invalidate_only=True)

1318

1495

1319

1496

del notifychangeproperty

1320

1497

1327

1504

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

1328

1505

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

1329

1506

1330

def checker_callback(self, pid, condition, command,

1331

*args, **kwargs):

1332

self.checker_callback_tag = None

1333

self.checker = None

1334

if os.WIFEXITED(condition):

1335

exitstatus = os.WEXITSTATUS(condition)

1507

def checker_callback(self, source, condition,

1508

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

1509

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

1510

connection, command, *args,

1511

**kwargs)

1512

exitstatus = self.last_checker_status

1513

if exitstatus >= 0:

1336

1514

# Emit D-Bus signal

1337

1515

self.CheckerCompleted(dbus.Int16(exitstatus),

1338

dbus.Int64(condition),

1516

# This is specific to GNU libC

1517

dbus.Int64(exitstatus << 8),

1339

1518

dbus.String(command))

1340

1519

else:

1341

1520

# Emit D-Bus signal

1342

1521

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

1343

dbus.Int64(condition),

1522

dbus.Int64(

1523

# This is specific to GNU libC

1524

(exitstatus << 8)

1525

| self.last_checker_signal),

1344

1526

dbus.String(command))

1345

1346

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

1347

*args, **kwargs)

1527

return ret

1348

1528

1349

1529

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

1350

old_checker = self.checker

1351

if self.checker is not None:

1352

old_checker_pid = self.checker.pid

1353

else:

1354

old_checker_pid = None

1530

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

1355

1531

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

1356

1532

# Only if new checker process was started

1357

1533

if (self.checker is not None

1366

1542

1367

1543

def approve(self, value=True):

1368

1544

self.approved = value

1369

gobject.timeout_add(timedelta_to_milliseconds

1370

(self.approval_duration),

1371

self._reset_approved)

1545

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

1546

* 1000), self._reset_approved)

1372

1547

self.send_changedstate()

1373

1548

1374

1549

## D-Bus methods, signals & properties

1375

_interface = "se.recompile.Mandos.Client"

1376

1550

1377

1551

## Interfaces

1378

1552

1379

@dbus_interface_annotations(_interface)

1380

def _foo(self):

1381

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

1382

"false"}

1383

1384

1553

## Signals

1385

1554

1386

1555

# CheckerCompleted - signal

1396

1565

pass

1397

1566

1398

1567

# PropertyChanged - signal

1568

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

1399

1569

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

1400

1570

def PropertyChanged(self, property, value):

1401

1571

"D-Bus signal"

1435

1605

self.checked_ok()

1436

1606

1437

1607

# Enable - method

1608

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

1438

1609

@dbus.service.method(_interface)

1439

1610

def Enable(self):

1440

1611

"D-Bus method"

1441

1612

self.enable()

1442

1613

1443

1614

# StartChecker - method

1615

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

1444

1616

@dbus.service.method(_interface)

1445

1617

def StartChecker(self):

1446

1618

"D-Bus method"

1447

1619

self.start_checker()

1448

1620

1449

1621

# Disable - method

1622

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

1450

1623

@dbus.service.method(_interface)

1451

1624

def Disable(self):

1452

1625

"D-Bus method"

1453

1626

self.disable()

1454

1627

1455

1628

# StopChecker - method

1629

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

1456

1630

@dbus.service.method(_interface)

1457

1631

def StopChecker(self):

1458

1632

self.stop_checker()

1465

1639

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

1466

1640

1467

1641

# ApprovedByDefault - property

1468

@dbus_service_property(_interface, signature="b",

1642

@dbus_service_property(_interface,

1643

signature="b",

1469

1644

access="readwrite")

1470

1645

def ApprovedByDefault_dbus_property(self, value=None):

1471

1646

if value is None: # get

1473

1648

self.approved_by_default = bool(value)

1474

1649

1475

1650

# ApprovalDelay - property

1476

@dbus_service_property(_interface, signature="t",

1651

@dbus_service_property(_interface,

1652

signature="t",

1477

1653

access="readwrite")

1478

1654

def ApprovalDelay_dbus_property(self, value=None):

1479

1655

if value is None: # get

1480

return dbus.UInt64(self.approval_delay_milliseconds())

1656

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

1657

* 1000)

1481

1658

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

1482

1659

1483

1660

# ApprovalDuration - property

1484

@dbus_service_property(_interface, signature="t",

1661

@dbus_service_property(_interface,

1662

signature="t",

1485

1663

access="readwrite")

1486

1664

def ApprovalDuration_dbus_property(self, value=None):

1487

1665

if value is None: # get

1488

return dbus.UInt64(timedelta_to_milliseconds(

1489

self.approval_duration))

1666

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

1667

* 1000)

1490

1668

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

1491

1669

1492

1670

# Name - property

1671

@dbus_annotations(

1672

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

1493

1673

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

1494

1674

def Name_dbus_property(self):

1495

1675

return dbus.String(self.name)

1496

1676

1497

1677

# Fingerprint - property

1678

@dbus_annotations(

1679

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

1498

1680

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

1499

1681

def Fingerprint_dbus_property(self):

1500

1682

return dbus.String(self.fingerprint)

1501

1683

1502

1684

# Host - property

1503

@dbus_service_property(_interface, signature="s",

1685

@dbus_service_property(_interface,

1686

signature="s",

1504

1687

access="readwrite")

1505

1688

def Host_dbus_property(self, value=None):

1506

1689

if value is None: # get

1507

1690

return dbus.String(self.host)

1508

self.host = unicode(value)

1691

self.host = str(value)

1509

1692

1510

1693

# Created - property

1694

@dbus_annotations(

1695

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

1511

1696

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

1512

1697

def Created_dbus_property(self):

1513

1698

return datetime_to_dbus(self.created)

1518

1703

return datetime_to_dbus(self.last_enabled)

1519

1704

1520

1705

# Enabled - property

1521

@dbus_service_property(_interface, signature="b",

1706

@dbus_service_property(_interface,

1707

signature="b",

1522

1708

access="readwrite")

1523

1709

def Enabled_dbus_property(self, value=None):

1524

1710

if value is None: # get

1529

1715

self.disable()

1530

1716

1531

1717

# LastCheckedOK - property

1532

@dbus_service_property(_interface, signature="s",

1718

@dbus_service_property(_interface,

1719

signature="s",

1533

1720

access="readwrite")

1534

1721

def LastCheckedOK_dbus_property(self, value=None):

1535

1722

if value is not None:

1538

1725

return datetime_to_dbus(self.last_checked_ok)

1539

1726

1540

1727

# LastCheckerStatus - property

1541

@dbus_service_property(_interface, signature="n",

1542

access="read")

1728

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

1543

1729

def LastCheckerStatus_dbus_property(self):

1544

1730

return dbus.Int16(self.last_checker_status)

1545

1731

1554

1740

return datetime_to_dbus(self.last_approval_request)

1555

1741

1556

1742

# Timeout - property

1557

@dbus_service_property(_interface, signature="t",

1743

@dbus_service_property(_interface,

1744

signature="t",

1558

1745

access="readwrite")

1559

1746

def Timeout_dbus_property(self, value=None):

1560

1747

if value is None: # get

1561

return dbus.UInt64(self.timeout_milliseconds())

1748

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

1562

1749

old_timeout = self.timeout

1563

1750

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

1564

1751

# Reschedule disabling

1573

1760

is None):

1574

1761

return

1575

1762

gobject.source_remove(self.disable_initiator_tag)

1576

self.disable_initiator_tag = (

1577

gobject.timeout_add(

1578

timedelta_to_milliseconds(self.expires - now),

1579

self.disable))

1763

self.disable_initiator_tag = gobject.timeout_add(

1764

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

1765

self.disable)

1580

1766

1581

1767

# ExtendedTimeout - property

1582

@dbus_service_property(_interface, signature="t",

1768

@dbus_service_property(_interface,

1769

signature="t",

1583

1770

access="readwrite")

1584

1771

def ExtendedTimeout_dbus_property(self, value=None):

1585

1772

if value is None: # get

1586

return dbus.UInt64(self.extended_timeout_milliseconds())

1773

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

1774

* 1000)

1587

1775

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

1588

1776

1589

1777

# Interval - property

1590

@dbus_service_property(_interface, signature="t",

1778

@dbus_service_property(_interface,

1779

signature="t",

1591

1780

access="readwrite")

1592

1781

def Interval_dbus_property(self, value=None):

1593

1782

if value is None: # get

1594

return dbus.UInt64(self.interval_milliseconds())

1783

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

1595

1784

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

1596

1785

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

1597

1786

return

1598

1787

if self.enabled:

1599

1788

# Reschedule checker run

1600

1789

gobject.source_remove(self.checker_initiator_tag)

1601

self.checker_initiator_tag = (gobject.timeout_add

1602

(value, self.start_checker))

1603

self.start_checker() # Start one now, too

1790

self.checker_initiator_tag = gobject.timeout_add(

1791

value, self.start_checker)

1792

self.start_checker() # Start one now, too

1604

1793

1605

1794

# Checker - property

1606

@dbus_service_property(_interface, signature="s",

1795

@dbus_service_property(_interface,

1796

signature="s",

1607

1797

access="readwrite")

1608

1798

def Checker_dbus_property(self, value=None):

1609

1799

if value is None: # get

1610

1800

return dbus.String(self.checker_command)

1611

self.checker_command = unicode(value)

1801

self.checker_command = str(value)

1612

1802

1613

1803

# CheckerRunning - property

1614

@dbus_service_property(_interface, signature="b",

1804

@dbus_service_property(_interface,

1805

signature="b",

1615

1806

access="readwrite")

1616

1807

def CheckerRunning_dbus_property(self, value=None):

1617

1808

if value is None: # get

1622

1813

self.stop_checker()

1623

1814

1624

1815

# ObjectPath - property

1816

@dbus_annotations(

1817

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

1818

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

1625

1819

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

1626

1820

def ObjectPath_dbus_property(self):

1627

1821

return self.dbus_object_path # is already a dbus.ObjectPath

1628

1822

1629

1823

# Secret = property

1630

@dbus_service_property(_interface, signature="ay",

1631

access="write", byte_arrays=True)

1824

@dbus_annotations(

1825

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

1826

"invalidates"})

1827

@dbus_service_property(_interface,

1828

signature="ay",

1829

access="write",

1830

byte_arrays=True)

1632

1831

def Secret_dbus_property(self, value):

1633

self.secret = str(value)

1832

self.secret = bytes(value)

1634

1833

1635

1834

del _interface

1636

1835

1640

1839

self._pipe = child_pipe

1641

1840

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

1642

1841

if not self._pipe.recv():

1643

raise KeyError()

1842

raise KeyError(fpr)

1644

1843

1645

1844

def __getattribute__(self, name):

1646

1845

if name == '_pipe':

1650

1849

if data[0] == 'data':

1651

1850

return data[1]

1652

1851

if data[0] == 'function':

1852

1653

1853

def func(*args, **kwargs):

1654

1854

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

1655

1855

return self._pipe.recv()[1]

1856

1656

1857

return func

1657

1858

1658

1859

def __setattr__(self, name, value):

1670

1871

def handle(self):

1671

1872

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

1672

1873

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

1673

unicode(self.client_address))

1874

str(self.client_address))

1674

1875

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

1675

1876

self.server.child_pipe.fileno())

1676

1877

1677

session = (gnutls.connection

1678

.ClientSession(self.request,

1679

gnutls.connection

1680

.X509Credentials()))

1878

session = gnutls.connection.ClientSession(

1879

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

1681

1880

1682

1881

# Note: gnutls.connection.X509Credentials is really a

1683

1882

# generic GnuTLS certificate credentials object so long as

1692

1891

priority = self.server.gnutls_priority

1693

1892

if priority is None:

1694

1893

priority = "NORMAL"

1695

(gnutls.library.functions

1696

.gnutls_priority_set_direct(session._c_object,

1697

priority, None))

1894

gnutls.library.functions.gnutls_priority_set_direct(

1895

session._c_object, priority, None)

1698

1896

1699

1897

# Start communication using the Mandos protocol

1700

1898

# Get protocol number

1702

1900

logger.debug("Protocol version: %r", line)

1703

1901

try:

1704

1902

if int(line.strip().split()[0]) > 1:

1705

raise RuntimeError

1903

raise RuntimeError(line)

1706

1904

except (ValueError, IndexError, RuntimeError) as error:

1707

1905

logger.error("Unknown protocol version: %s", error)

1708

1906

return

1720

1918

approval_required = False

1721

1919

try:

1722

1920

try:

1723

fpr = self.fingerprint(self.peer_certificate

1724

(session))

1921

fpr = self.fingerprint(

1922

self.peer_certificate(session))

1725

1923

except (TypeError,

1726

1924

gnutls.errors.GNUTLSError) as error:

1727

1925

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

1742

1940

while True:

1743

1941

if not client.enabled:

1744

1942

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

1745

client.name)

1943

client.name)

1746

1944

if self.server.use_dbus:

1747

1945

# Emit D-Bus signal

1748

1946

client.Rejected("Disabled")

1757

1955

if self.server.use_dbus:

1758

1956

# Emit D-Bus signal

1759

1957

client.NeedApproval(

1760

client.approval_delay_milliseconds(),

1761

client.approved_by_default)

1958

client.approval_delay.total_seconds()

1959

* 1000, client.approved_by_default)

1762

1960

else:

1763

1961

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

1764

1962

client.name)

1770

1968

#wait until timeout or approved

1771

1969

time = datetime.datetime.now()

1772

1970

client.changedstate.acquire()

1773

client.changedstate.wait(

1774

float(timedelta_to_milliseconds(delay)

1775

/ 1000))

1971

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

1776

1972

client.changedstate.release()

1777

1973

time2 = datetime.datetime.now()

1778

1974

if (time2 - time) >= delay:

1797

1993

logger.warning("gnutls send failed",

1798

1994

exc_info=error)

1799

1995

return

1800

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

1801

sent, len(client.secret)

1802

- (sent_size + sent))

1996

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

1997

len(client.secret) - (sent_size

1998

+ sent))

1803

1999

sent_size += sent

1804

2000

1805

2001

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

1822

2018

def peer_certificate(session):

1823

2019

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

1824

2020

# If not an OpenPGP certificate...

1825

if (gnutls.library.functions

1826

.gnutls_certificate_type_get(session._c_object)

2021

if (gnutls.library.functions.gnutls_certificate_type_get(

2022

session._c_object)

1827

2023

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1828

2024

# ...do the normal thing

1829

2025

return session.peer_certificate

1843

2039

def fingerprint(openpgp):

1844

2040

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

1845

2041

# New GnuTLS "datum" with the OpenPGP public key

1846

datum = (gnutls.library.types

1847

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

1848

ctypes.POINTER

1849

(ctypes.c_ubyte)),

1850

ctypes.c_uint(len(openpgp))))

2042

datum = gnutls.library.types.gnutls_datum_t(

2043

ctypes.cast(ctypes.c_char_p(openpgp),

2044

ctypes.POINTER(ctypes.c_ubyte)),

2045

ctypes.c_uint(len(openpgp)))

1851

2046

# New empty GnuTLS certificate

1852

2047

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1853

(gnutls.library.functions

1854

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

2048

gnutls.library.functions.gnutls_openpgp_crt_init(

2049

ctypes.byref(crt))

1855

2050

# Import the OpenPGP public key into the certificate

1856

(gnutls.library.functions

1857

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

1858

gnutls.library.constants

1859

.GNUTLS_OPENPGP_FMT_RAW))

2051

gnutls.library.functions.gnutls_openpgp_crt_import(

2052

crt, ctypes.byref(datum),

2053

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

1860

2054

# Verify the self signature in the key

1861

2055

crtverify = ctypes.c_uint()

1862

(gnutls.library.functions

1863

.gnutls_openpgp_crt_verify_self(crt, 0,

1864

ctypes.byref(crtverify)))

2056

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

2057

crt, 0, ctypes.byref(crtverify))

1865

2058

if crtverify.value != 0:

1866

2059

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1867

raise (gnutls.errors.CertificateSecurityError

1868

("Verify failed"))

2060

raise gnutls.errors.CertificateSecurityError(

2061

"Verify failed")

1869

2062

# New buffer for the fingerprint

1870

2063

buf = ctypes.create_string_buffer(20)

1871

2064

buf_len = ctypes.c_size_t()

1872

2065

# Get the fingerprint from the certificate into the buffer

1873

(gnutls.library.functions

1874

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

1875

ctypes.byref(buf_len)))

2066

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

2067

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

1876

2068

# Deinit the certificate

1877

2069

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1878

2070

# Convert the buffer to a Python bytestring

1884

2076

1885

2077

class MultiprocessingMixIn(object):

1886

2078

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

2079

1887

2080

def sub_process_main(self, request, address):

1888

2081

try:

1889

2082

self.finish_request(request, address)

1901

2094

1902

2095

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1903

2096

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

2097

1904

2098

def process_request(self, request, client_address):

1905

2099

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

1906

2100

1915

2109

1916

2110

def add_pipe(self, parent_pipe, proc):

1917

2111

"""Dummy function; override as necessary"""

1918

raise NotImplementedError

2112

raise NotImplementedError()

1919

2113

1920

2114

1921

2115

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

1927

2121

interface: None or a network interface name (string)

1928

2122

use_ipv6: Boolean; to use IPv6 or not

1929

2123

"""

2124

1930

2125

def __init__(self, server_address, RequestHandlerClass,

1931

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

2126

interface=None,

2127

use_ipv6=True,

2128

socketfd=None):

1932

2129

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

1933

2130

creating a new one with socket.socket().

1934

2131

"""

1975

2172

self.interface)

1976

2173

else:

1977

2174

try:

1978

self.socket.setsockopt(socket.SOL_SOCKET,

1979

SO_BINDTODEVICE,

1980

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

2175

self.socket.setsockopt(

2176

socket.SOL_SOCKET, SO_BINDTODEVICE,

2177

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

1981

2178

except socket.error as error:

1982

2179

if error.errno == errno.EPERM:

1983

2180

logger.error("No permission to bind to"

2001

2198

self.server_address = (any_address,

2002

2199

self.server_address[1])

2003

2200

elif not self.server_address[1]:

2004

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

2005

0)

2201

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

2006

2202

# if self.interface:

2007

2203

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

2008

2204

# 0, # port

2022

2218

2023

2219

Assumes a gobject.MainLoop event loop.

2024

2220

"""

2221

2025

2222

def __init__(self, server_address, RequestHandlerClass,

2026

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

2027

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

2223

interface=None,

2224

use_ipv6=True,

2225

clients=None,

2226

gnutls_priority=None,

2227

use_dbus=True,

2228

socketfd=None):

2028

2229

self.enabled = False

2029

2230

self.clients = clients

2030

2231

if self.clients is None:

2036

2237

interface = interface,

2037

2238

use_ipv6 = use_ipv6,

2038

2239

socketfd = socketfd)

2240

2039

2241

def server_activate(self):

2040

2242

if self.enabled:

2041

2243

return socketserver.TCPServer.server_activate(self)

2045

2247

2046

2248

def add_pipe(self, parent_pipe, proc):

2047

2249

# Call "handle_ipc" for both data and EOF events

2048

gobject.io_add_watch(parent_pipe.fileno(),

2049

gobject.IO_IN | gobject.IO_HUP,

2050

functools.partial(self.handle_ipc,

2051

parent_pipe =

2052

parent_pipe,

2053

proc = proc))

2250

gobject.io_add_watch(

2251

parent_pipe.fileno(),

2252

gobject.IO_IN | gobject.IO_HUP,

2253

functools.partial(self.handle_ipc,

2254

parent_pipe = parent_pipe,

2255

proc = proc))

2054

2256

2055

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

2056

proc = None, client_object=None):

2257

def handle_ipc(self, source, condition,

2258

parent_pipe=None,

2259

proc = None,

2260

client_object=None):

2057

2261

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

2058

2262

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

2059

2263

# Wait for other process to exit

2082

2286

parent_pipe.send(False)

2083

2287

return False

2084

2288

2085

gobject.io_add_watch(parent_pipe.fileno(),

2086

gobject.IO_IN | gobject.IO_HUP,

2087

functools.partial(self.handle_ipc,

2088

parent_pipe =

2089

parent_pipe,

2090

proc = proc,

2091

client_object =

2092

client))

2289

gobject.io_add_watch(

2290

parent_pipe.fileno(),

2291

gobject.IO_IN | gobject.IO_HUP,

2292

functools.partial(self.handle_ipc,

2293

parent_pipe = parent_pipe,

2294

proc = proc,

2295

client_object = client))

2093

2296

parent_pipe.send(True)

2094

2297

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

2095

2298

# same fileno

2101

2304

2102

2305

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

2103

2306

funcname)(*args,

2104

**kwargs)))

2307

**kwargs)))

2105

2308

2106

2309

if command == 'getattr':

2107

2310

attrname = request[1]

2108

if callable(client_object.__getattribute__(attrname)):

2109

parent_pipe.send(('function',))

2311

if isinstance(client_object.__getattribute__(attrname),

2312

collections.Callable):

2313

parent_pipe.send(('function', ))

2110

2314

else:

2111

parent_pipe.send(('data', client_object

2112

.__getattribute__(attrname)))

2315

parent_pipe.send((

2316

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

2113

2317

2114

2318

if command == 'setattr':

2115

2319

attrname = request[1]

2146

2350

# avoid excessive use of external libraries.

2147

2351

2148

2352

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

2149

Token = collections.namedtuple("Token",

2150

("regexp", # To match token; if

2151

# "value" is not None,

2152

# must have a "group"

2153

# containing digits

2154

"value", # datetime.timedelta or

2155

# None

2156

"followers")) # Tokens valid after

2157

# this token

2353

Token = collections.namedtuple("Token", (

2354

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

2355

# a "group" containing digits

2356

"value", # datetime.timedelta or None

2357

"followers")) # Tokens valid after this token

2158

2358

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

2159

2359

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

2160

2360

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

2161

2361

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

2162

2362

datetime.timedelta(seconds=1),

2163

frozenset((token_end,)))

2363

frozenset((token_end, )))

2164

2364

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

2165

2365

datetime.timedelta(minutes=1),

2166

2366

frozenset((token_second, token_end)))

2182

2382

frozenset((token_month, token_end)))

2183

2383

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

2184

2384

datetime.timedelta(weeks=1),

2185

frozenset((token_end,)))

2385

frozenset((token_end, )))

2186

2386

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

2187

2387

frozenset((token_year, token_month,

2188

2388

token_day, token_time,

2189

token_week))),

2389

token_week)))

2190

2390

# Define starting values

2191

2391

value = datetime.timedelta() # Value so far

2192

2392

found_token = None

2193

followers = frozenset(token_duration,) # Following valid tokens

2393

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

2194

2394

s = duration # String left to parse

2195

2395

# Loop until end token is found

2196

2396

while found_token is not token_end:

2213

2413

break

2214

2414

else:

2215

2415

# No currently valid tokens were found

2216

raise ValueError("Invalid RFC 3339 duration")

2416

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

2417

.format(duration))

2217

2418

# End token found

2218

2419

return value

2219

2420

2243

2444

timevalue = datetime.timedelta(0)

2244

2445

for s in interval.split():

2245

2446

try:

2246

suffix = unicode(s[-1])

2447

suffix = s[-1]

2247

2448

value = int(s[:-1])

2248

2449

if suffix == "d":

2249

2450

delta = datetime.timedelta(value)

2256

2457

elif suffix == "w":

2257

2458

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

2258

2459

else:

2259

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

2260

.format(suffix))

2261

except (ValueError, IndexError) as e:

2460

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

2461

except IndexError as e:

2262

2462

raise ValueError(*(e.args))

2263

2463

timevalue += delta

2264

2464

return timevalue

2280

2480

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

2281

2481

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

2282

2482

raise OSError(errno.ENODEV,

2283

"{0} not a character device"

2483

"{} not a character device"

2284

2484

.format(os.devnull))

2285

2485

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

2286

2486

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

2296

2496

2297

2497

parser = argparse.ArgumentParser()

2298

2498

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

2299

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

2499

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

2300

2500

help="show version number and exit")

2301

2501

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

2302

2502

help="Bind to interface IF")

2335

2535

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

2336

2536

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

2337

2537

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

2538

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

2539

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

2540

default=None)

2338

2541

2339

2542

options = parser.parse_args()

2340

2543

2341

2544

if options.check:

2342

2545

import doctest

2343

doctest.testmod()

2344

sys.exit()

2546

fail_count, test_count = doctest.testmod()

2547

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

2345

2548

2346

2549

# Default values for config file for server-global settings

2347

2550

server_defaults = { "interface": "",

2349

2552

"port": "",

2350

2553

"debug": "False",

2351

2554

"priority":

2352

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

2555

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

2556

":+SIGN-DSA-SHA256",

2353

2557

"servicename": "Mandos",

2354

2558

"use_dbus": "True",

2355

2559

"use_ipv6": "True",

2358

2562

"socket": "",

2359

2563

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

2360

2564

"foreground": "False",

2361

}

2565

"zeroconf": "True",

2566

}

2362

2567

2363

2568

# Parse config file for server-global settings

2364

2569

server_config = configparser.SafeConfigParser(server_defaults)

2365

2570

del server_defaults

2366

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

2367

"mandos.conf"))

2571

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

2368

2572

# Convert the SafeConfigParser object to a dict

2369

2573

server_settings = server_config.defaults()

2370

2574

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

2388

2592

# Override the settings from the config file with command line

2389

2593

# options, if set.

2390

2594

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

2391

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

2392

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

2393

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

2595

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

2596

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

2597

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

2394

2598

value = getattr(options, option)

2395

2599

if value is not None:

2396

2600

server_settings[option] = value

2397

2601

del options

2398

2602

# Force all strings to be unicode

2399

2603

for option in server_settings.keys():

2400

if type(server_settings[option]) is str:

2401

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

2604

if isinstance(server_settings[option], bytes):

2605

server_settings[option] = (server_settings[option]

2606

.decode("utf-8"))

2402

2607

# Force all boolean options to be boolean

2403

2608

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

2404

"foreground"):

2609

"foreground", "zeroconf"):

2405

2610

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

2406

2611

# Debug implies foreground

2407

2612

if server_settings["debug"]:

2410

2615

2411

2616

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

2412

2617

2618

if (not server_settings["zeroconf"]

2619

and not (server_settings["port"]

2620

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

2621

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

2622

2413

2623

# For convenience

2414

2624

debug = server_settings["debug"]

2415

2625

debuglevel = server_settings["debuglevel"]

2418

2628

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

2419

2629

stored_state_file)

2420

2630

foreground = server_settings["foreground"]

2631

zeroconf = server_settings["zeroconf"]

2421

2632

2422

2633

if debug:

2423

2634

initlogger(debug, logging.DEBUG)

2429

2640

initlogger(debug, level)

2430

2641

2431

2642

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

2432

syslogger.setFormatter(logging.Formatter

2433

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

2434

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

2435

.format(server_settings

2436

["servicename"])))

2643

syslogger.setFormatter(

2644

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

2645

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

2646

server_settings["servicename"])))

2437

2647

2438

2648

# Parse config file with clients

2439

2649

client_config = configparser.SafeConfigParser(Client

2444

2654

global mandos_dbus_service

2445

2655

mandos_dbus_service = None

2446

2656

2447

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

2448

server_settings["port"]),

2449

ClientHandler,

2450

interface=(server_settings["interface"]

2451

or None),

2452

use_ipv6=use_ipv6,

2453

gnutls_priority=

2454

server_settings["priority"],

2455

use_dbus=use_dbus,

2456

socketfd=(server_settings["socket"]

2457

or None))

2657

socketfd = None

2658

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

2659

socketfd = server_settings["socket"]

2660

tcp_server = MandosServer(

2661

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

2662

ClientHandler,

2663

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

2664

use_ipv6=use_ipv6,

2665

gnutls_priority=server_settings["priority"],

2666

use_dbus=use_dbus,

2667

socketfd=socketfd)

2458

2668

if not foreground:

2459

2669

pidfilename = "/run/mandos.pid"

2670

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

2671

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

2460

2672

pidfile = None

2461

2673

try:

2462

pidfile = open(pidfilename, "w")

2674

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

2463

2675

except IOError as e:

2464

2676

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

2465

2677

exc_info=e)

2479

2691

os.setuid(uid)

2480

2692

except OSError as error:

2481

2693

if error.errno != errno.EPERM:

2482

raise error

2694

raise

2483

2695

2484

2696

if debug:

2485

2697

# Enable all possible GnuTLS debugging

2492

2704

def debug_gnutls(level, string):

2493

2705

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

2494

2706

2495

(gnutls.library.functions

2496

.gnutls_global_set_log_function(debug_gnutls))

2707

gnutls.library.functions.gnutls_global_set_log_function(

2708

debug_gnutls)

2497

2709

2498

2710

# Redirect stdin so all checkers get /dev/null

2499

2711

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

2519

2731

if use_dbus:

2520

2732

try:

2521

2733

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

2522

bus, do_not_queue=True)

2523

old_bus_name = (dbus.service.BusName

2524

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

2525

do_not_queue=True))

2526

except dbus.exceptions.NameExistsException as e:

2734

bus,

2735

do_not_queue=True)

2736

old_bus_name = dbus.service.BusName(

2737

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

2738

do_not_queue=True)

2739

except dbus.exceptions.DBusException as e:

2527

2740

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

2528

2741

use_dbus = False

2529

2742

server_settings["use_dbus"] = False

2530

2743

tcp_server.use_dbus = False

2531

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2532

service = AvahiServiceToSyslog(name =

2533

server_settings["servicename"],

2534

servicetype = "_mandos._tcp",

2535

protocol = protocol, bus = bus)

2536

if server_settings["interface"]:

2537

service.interface = (if_nametoindex

2538

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

2744

if zeroconf:

2745

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2746

service = AvahiServiceToSyslog(

2747

name = server_settings["servicename"],

2748

servicetype = "_mandos._tcp",

2749

protocol = protocol,

2750

bus = bus)

2751

if server_settings["interface"]:

2752

service.interface = if_nametoindex(

2753

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

2539

2754

2540

2755

global multiprocessing_manager

2541

2756

multiprocessing_manager = multiprocessing.Manager()

2560

2775

if server_settings["restore"]:

2561

2776

try:

2562

2777

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

2563

clients_data, old_client_settings = (pickle.load

2564

(stored_state))

2778

clients_data, old_client_settings = pickle.load(

2779

stored_state)

2565

2780

os.remove(stored_state_path)

2566

2781

except IOError as e:

2567

2782

if e.errno == errno.ENOENT:

2568

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

2569

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

2783

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

2784

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

2570

2785

else:

2571

2786

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

2572

2787

exc_info=e)

2573

2788

raise

2574

2789

except EOFError as e:

2575

2790

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

2576

"EOFError:", exc_info=e)

2791

"EOFError:",

2792

exc_info=e)

2577

2793

2578

2794

with PGPEngine() as pgp:

2579

for client_name, client in clients_data.iteritems():

2795

for client_name, client in clients_data.items():

2580

2796

# Skip removed clients

2581

2797

if client_name not in client_settings:

2582

2798

continue

2591

2807

# For each value in new config, check if it

2592

2808

# differs from the old config value (Except for

2593

2809

# the "secret" attribute)

2594

if (name != "secret" and

2595

value != old_client_settings[client_name]

2596

[name]):

2810

if (name != "secret"

2811

and (value !=

2812

old_client_settings[client_name][name])):

2597

2813

client[name] = value

2598

2814

except KeyError:

2599

2815

pass

2600

2816

2601

2817

# Clients who has passed its expire date can still be

2602

# enabled if its last checker was successful. Clients

2818

# enabled if its last checker was successful. A Client

2603

2819

# whose checker succeeded before we stored its state is

2604

2820

# assumed to have successfully run all checkers during

2605

2821

# downtime.

2607

2823

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

2608

2824

if not client["last_checked_ok"]:

2609

2825

logger.warning(

2610

"disabling client {0} - Client never "

2611

"performed a successful checker"

2612

.format(client_name))

2826

"disabling client {} - Client never "

2827

"performed a successful checker".format(

2828

client_name))

2613

2829

client["enabled"] = False

2614

2830

elif client["last_checker_status"] != 0:

2615

2831

logger.warning(

2616

"disabling client {0} - Client "

2617

"last checker failed with error code {1}"

2618

.format(client_name,

2619

client["last_checker_status"]))

2832

"disabling client {} - Client last"

2833

" checker failed with error code"

2834

" {}".format(

2835

client_name,

2836

client["last_checker_status"]))

2620

2837

client["enabled"] = False

2621

2838

else:

2622

client["expires"] = (datetime.datetime

2623

.utcnow()

2624

+ client["timeout"])

2839

client["expires"] = (

2840

datetime.datetime.utcnow()

2841

+ client["timeout"])

2625

2842

logger.debug("Last checker succeeded,"

2626

" keeping {0} enabled"

2627

.format(client_name))

2843

" keeping {} enabled".format(

2844

client_name))

2628

2845

try:

2629

client["secret"] = (

2630

pgp.decrypt(client["encrypted_secret"],

2631

client_settings[client_name]

2632

["secret"]))

2846

client["secret"] = pgp.decrypt(

2847

client["encrypted_secret"],

2848

client_settings[client_name]["secret"])

2633

2849

except PGPError:

2634

2850

# If decryption fails, we use secret from new settings

2635

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

2636

.format(client_name))

2637

client["secret"] = (

2638

client_settings[client_name]["secret"])

2851

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

2852

client_name))

2853

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

2854

["secret"])

2639

2855

2640

2856

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

2641

2857

for client_name in (set(old_client_settings)

2646

2862

clients_data[client_name] = client_settings[client_name]

2647

2863

2648

2864

# Create all client objects

2649

for client_name, client in clients_data.iteritems():

2865

for client_name, client in clients_data.items():

2650

2866

tcp_server.clients[client_name] = client_class(

2651

name = client_name, settings = client,

2867

name = client_name,

2868

settings = client,

2652

2869

server_settings = server_settings)

2653

2870

2654

2871

if not tcp_server.clients:

2656

2873

2657

2874

if not foreground:

2658

2875

if pidfile is not None:

2876

pid = os.getpid()

2659

2877

try:

2660

2878

with pidfile:

2661

pid = os.getpid()

2662

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

2879

print(pid, file=pidfile)

2663

2880

except IOError:

2664

2881

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

2665

2882

pidfilename, pid)

2670

2887

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

2671

2888

2672

2889

if use_dbus:

2673

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

2674

"se.bsnet.fukt.Mandos"})

2675

class MandosDBusService(DBusObjectWithProperties):

2890

2891

@alternate_dbus_interfaces(

2892

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

2893

class MandosDBusService(DBusObjectWithObjectManager):

2676

2894

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

2895

2677

2896

def __init__(self):

2678

2897

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

2898

2679

2899

_interface = "se.recompile.Mandos"

2680

2900

2681

@dbus_interface_annotations(_interface)

2682

def _foo(self):

2683

return { "org.freedesktop.DBus.Property"

2684

".EmitsChangedSignal":

2685

"false"}

2686

2687

2901

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

2688

2902

def ClientAdded(self, objpath):

2689

2903

"D-Bus signal"

2694

2908

"D-Bus signal"

2695

2909

pass

2696

2910

2911

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

2912

"true"})

2697

2913

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

2698

2914

def ClientRemoved(self, objpath, name):

2699

2915

"D-Bus signal"

2700

2916

pass

2701

2917

2918

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

2919

"true"})

2702

2920

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

2703

2921

def GetAllClients(self):

2704

2922

"D-Bus method"

2705

return dbus.Array(c.dbus_object_path

2706

for c in

2923

return dbus.Array(c.dbus_object_path for c in

2707

2924

tcp_server.clients.itervalues())

2708

2925

2926

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

2927

"true"})

2709

2928

@dbus.service.method(_interface,

2710

2929

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

2711

2930

def GetAllClientsWithProperties(self):

2712

2931

"D-Bus method"

2713

2932

return dbus.Dictionary(

2714

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

2715

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

2933

{ c.dbus_object_path: c.GetAll(

2934

"se.recompile.Mandos.Client")

2935

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

2716

2936

signature="oa{sv}")

2717

2937

2718

2938

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

2722

2942

if c.dbus_object_path == object_path:

2723

2943

del tcp_server.clients[c.name]

2724

2944

c.remove_from_connection()

2725

# Don't signal anything except ClientRemoved

2945

# Don't signal the disabling

2726

2946

c.disable(quiet=True)

2727

# Emit D-Bus signal

2728

self.ClientRemoved(object_path, c.name)

2947

# Emit D-Bus signal for removal

2948

self.client_removed_signal(c)

2729

2949

return

2730

2950

raise KeyError(object_path)

2731

2951

2732

2952

del _interface

2953

2954

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

2955

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

2956

def GetManagedObjects(self):

2957

"""D-Bus method"""

2958

return dbus.Dictionary(

2959

{ client.dbus_object_path:

2960

dbus.Dictionary(

2961

{ interface: client.GetAll(interface)

2962

for interface in

2963

client._get_all_interface_names()})

2964

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

2965

2966

def client_added_signal(self, client):

2967

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

2968

if use_dbus:

2969

# New standard signal

2970

self.InterfacesAdded(

2971

client.dbus_object_path,

2972

dbus.Dictionary(

2973

{ interface: client.GetAll(interface)

2974

for interface in

2975

client._get_all_interface_names()}))

2976

# Old signal

2977

self.ClientAdded(client.dbus_object_path)

2978

2979

def client_removed_signal(self, client):

2980

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

2981

if use_dbus:

2982

# New standard signal

2983

self.InterfacesRemoved(

2984

client.dbus_object_path,

2985

client._get_all_interface_names())

2986

# Old signal

2987

self.ClientRemoved(client.dbus_object_path,

2988

client.name)

2733

2989

2734

2990

mandos_dbus_service = MandosDBusService()

2735

2991

2736

2992

def cleanup():

2737

2993

"Cleanup function; run on exit"

2738

service.cleanup()

2994

if zeroconf:

2995

service.cleanup()

2739

2996

2740

2997

multiprocessing.active_children()

2741

2998

wnull.close()

2755

3012

2756

3013

# A list of attributes that can not be pickled

2757

3014

# + secret.

2758

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

2759

"checker", "server_settings"))

2760

for name, typ in (inspect.getmembers

2761

(dbus.service.Object)):

3015

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

3016

"checker", "server_settings" }

3017

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

3018

.Object):

2762

3019

exclude.add(name)

2763

3020

2764

3021

client_dict["encrypted_secret"] = (client

2771

3028

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

2772

3029

2773

3030

try:

2774

with (tempfile.NamedTemporaryFile

2775

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

2776

dir=os.path.dirname(stored_state_path),

2777

delete=False)) as stored_state:

3031

with tempfile.NamedTemporaryFile(

3032

mode='wb',

3033

suffix=".pickle",

3034

prefix='clients-',

3035

dir=os.path.dirname(stored_state_path),

3036

delete=False) as stored_state:

2778

3037

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

2779

tempname=stored_state.name

3038

tempname = stored_state.name

2780

3039

os.rename(tempname, stored_state_path)

2781

3040

except (IOError, OSError) as e:

2782

3041

if not debug:

2785

3044

except NameError:

2786

3045

pass

2787

3046

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

2788

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

3047

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

2789

3048

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

2790

3049

else:

2791

3050

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

2792

3051

exc_info=e)

2793

raise e

3052

raise

2794

3053

2795

3054

# Delete all clients, and settings from config

2796

3055

while tcp_server.clients:

2797

3056

name, client = tcp_server.clients.popitem()

2798

3057

if use_dbus:

2799

3058

client.remove_from_connection()

2800

# Don't signal anything except ClientRemoved

3059

# Don't signal the disabling

2801

3060

client.disable(quiet=True)

2802

if use_dbus:

2803

# Emit D-Bus signal

2804

mandos_dbus_service.ClientRemoved(client

2805

.dbus_object_path,

2806

client.name)

3061

# Emit D-Bus signal for removal

3062

mandos_dbus_service.client_removed_signal(client)

2807

3063

client_settings.clear()

2808

3064

2809

3065

atexit.register(cleanup)

2810

3066

2811

3067

for client in tcp_server.clients.itervalues():

2812

3068

if use_dbus:

2813

# Emit D-Bus signal

2814

mandos_dbus_service.ClientAdded(client.dbus_object_path)

3069

# Emit D-Bus signal for adding

3070

mandos_dbus_service.client_added_signal(client)

2815

3071

# Need to initiate checking of clients

2816

3072

if client.enabled:

2817

3073

client.init_checker()

2820

3076

tcp_server.server_activate()

2821

3077

2822

3078

# Find out what port we got

2823

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

3079

if zeroconf:

3080

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

2824

3081

if use_ipv6:

2825

3082

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

2826

3083

" flowinfo %d, scope_id %d",

2832

3089

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

2833

3090

2834

3091

try:

2835

# From the Avahi example code

2836

try:

2837

service.activate()

2838

except dbus.exceptions.DBusException as error:

2839

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

2840

cleanup()

2841

sys.exit(1)

2842

# End of Avahi example code

3092

if zeroconf:

3093

# From the Avahi example code

3094

try:

3095

service.activate()

3096

except dbus.exceptions.DBusException as error:

3097

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

3098

cleanup()

3099

sys.exit(1)

3100

# End of Avahi example code

2843

3101

2844

3102

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

2845

3103

lambda *args, **kwargs:

2860

3118

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

2861

3119

cleanup()

2862

3120

3121

2863

3122

if __name__ == '__main__':

2864

3123

main()