/mandos/trunk : revision 724

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

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#

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# Everything else is

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#

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

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

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from future_builtins import *

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try:

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import SocketServer as socketserver

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except ImportError:

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import socketserver

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import SocketServer as socketserver

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import socket

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import argparse

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import datetime

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import gnutls.library.functions

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import gnutls.library.constants

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import gnutls.library.types

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try:

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import ConfigParser as configparser

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except ImportError:

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import configparser

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import ConfigParser as configparser

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import sys

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import re

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import os

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import struct

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import fcntl

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import functools

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try:

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import cPickle as pickle

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except ImportError:

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import pickle

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import cPickle as pickle

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import multiprocessing

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import types

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import binascii

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import tempfile

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import itertools

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import collections

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import codecs

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import dbus

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import dbus.service

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try:

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import gobject

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except ImportError:

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from gi.repository import GObject as gobject

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import gobject

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import avahi

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from dbus.mainloop.glib import DBusGMainLoop

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import ctypes

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except ImportError:

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SO_BINDTODEVICE = None

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if sys.version_info.major == 2:

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str = unicode

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version = "1.6.9"

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version = "1.6.7"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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syslogger = None

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try:

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if_nametoindex = ctypes.cdll.LoadLibrary(

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

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if_nametoindex = (ctypes.cdll.LoadLibrary

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

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.if_nametoindex)

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except (OSError, AttributeError):

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def if_nametoindex(interface):

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

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

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

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ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

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

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

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

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interface))

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

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ifreq[16:20])[0]

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return interface_index

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"""init logger and add loglevel"""

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global syslogger

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syslogger = (logging.handlers.SysLogHandler(

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facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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address = "/dev/log"))

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syslogger = (logging.handlers.SysLogHandler

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(facility =

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logging.handlers.SysLogHandler.LOG_DAEMON,

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

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syslogger.setFormatter(logging.Formatter

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

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' %(message)s'))

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class PGPEngine(object):

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

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def __init__(self):

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

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self.gnupgargs = ['--batch',

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def encrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(

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dir=self.tempdir) as passfile:

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with tempfile.NamedTemporaryFile(dir=self.tempdir

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) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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def decrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(

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dir = self.tempdir) as passfile:

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with tempfile.NamedTemporaryFile(dir = self.tempdir

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) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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stdin = subprocess.PIPE,

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stdout = subprocess.PIPE,

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stderr = subprocess.PIPE)

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

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decrypted_plaintext, err = proc.communicate(input

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= data)

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if proc.returncode != 0:

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raise PGPError(err)

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return decrypted_plaintext

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class AvahiError(Exception):

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

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self.value = value

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

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**kwargs)

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

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def __unicode__(self):

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return unicode(repr(self.value))

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class AvahiServiceError(AvahiError):

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pass

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class AvahiGroupError(AvahiError):

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pass

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bus: dbus.SystemBus()

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"""

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def __init__(self,

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interface = avahi.IF_UNSPEC,

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name = None,

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servicetype = None,

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port = None,

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TXT = None,

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domain = "",

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host = "",

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max_renames = 32768,

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protocol = avahi.PROTO_UNSPEC,

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bus = None):

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

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

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

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protocol = avahi.PROTO_UNSPEC, bus = None):

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self.interface = interface

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self.name = name

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self.type = servicetype

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self.bus = bus

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self.entry_group_state_changed_match = None

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def rename(self, remove=True):

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def rename(self):

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

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if self.rename_count >= self.max_renames:

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

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" after %i retries, exiting.",

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self.rename_count)

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raise AvahiServiceError("Too many renames")

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self.name = str(

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self.server.GetAlternativeServiceName(self.name))

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self.rename_count += 1

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self.name = unicode(self.server

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.GetAlternativeServiceName(self.name))

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

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self.name)

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if remove:

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self.remove()

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self.remove()

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

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if (error.get_dbus_name()

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

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

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return self.rename(remove=False)

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else:

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

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self.cleanup()

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os._exit(1)

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

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self.cleanup()

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os._exit(1)

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self.rename_count += 1

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def remove(self):

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

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

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

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str(error))

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

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unicode(error))

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

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.format(error))

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def cleanup(self):

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

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

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

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

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bad_states = {

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avahi.SERVER_INVALID: "Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION: "Zeroconf server name collision",

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avahi.SERVER_FAILURE: "Zeroconf server failure",

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}

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bad_states = { avahi.SERVER_INVALID:

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"Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION:

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"Zeroconf server name collision",

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avahi.SERVER_FAILURE:

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"Zeroconf server failure" }

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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

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

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self.cleanup()

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elif state == avahi.SERVER_RUNNING:

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

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if (error.get_dbus_name()

402

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

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logger.info("Local Zeroconf service name"

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" collision.")

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return self.rename(remove=False)

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else:

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

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self.cleanup()

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os._exit(1)

373

self.add()

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else:

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if error is None:

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

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follow_name_owner_changes=True),

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avahi.DBUS_INTERFACE_SERVER)

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self.server.connect_to_signal("StateChanged",

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self.server_state_changed)

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self.server_state_changed)

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

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class AvahiServiceToSyslog(AvahiService):

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

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def rename(self):

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

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

433

syslogger.setFormatter(logging.Formatter(

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

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.format(self.name)))

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ret = AvahiService.rename(self)

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syslogger.setFormatter(logging.Formatter

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

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

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.format(self.name)))

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return ret

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def call_pipe(connection, # : multiprocessing.Connection

439

func, *args, **kwargs):

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

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

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return value on the provided multiprocessing.Connection.

444

"""

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

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connection.close()

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404

class Client(object):

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

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last_checker_status: integer between 0 and 255 reflecting exit

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status of last checker. -1 reflects crashed

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checker, -2 means no checker completed yet.

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last_checker_signal: The signal which killed the last checker, if

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last_checker_status is -1

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

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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")

499

client_defaults = {

500

"timeout": "PT5M",

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"extended_timeout": "PT15M",

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"interval": "PT2M",

503

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

504

"host": "",

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"approval_delay": "PT0S",

506

"approval_duration": "PT1S",

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"approved_by_default": "True",

508

"enabled": "True",

509

}

453

client_defaults = { "timeout": "PT5M",

454

"extended_timeout": "PT15M",

455

"interval": "PT2M",

456

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

457

"host": "",

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"approval_delay": "PT0S",

459

"approval_duration": "PT1S",

460

"approved_by_default": "True",

461

"enabled": "True",

462

}

510

463

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@staticmethod

512

465

def config_parser(config):

528

481

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

529

482

"enabled")

530

483

531

# Uppercase and remove spaces from fingerprint for later

532

# comparison purposes with return value from the

533

# fingerprint() function

534

484

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

535

485

.replace(" ", ""))

536

486

if "secret" in section:

578

528

self.expires = None

579

529

580

530

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

531

# Uppercase and remove spaces from fingerprint for later

532

# comparison purposes with return value from the fingerprint()

533

# function

581

534

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

582

535

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

583

536

datetime.datetime.utcnow())

590

543

self.current_checker_command = None

591

544

self.approved = None

592

545

self.approvals_pending = 0

593

self.changedstate = multiprocessing_manager.Condition(

594

multiprocessing_manager.Lock())

595

self.client_structure = [attr

596

for attr in self.__dict__.iterkeys()

546

self.changedstate = (multiprocessing_manager

547

.Condition(multiprocessing_manager

548

.Lock()))

549

self.client_structure = [attr for attr in

550

self.__dict__.iterkeys()

597

551

if not attr.startswith("_")]

598

552

self.client_structure.append("client_structure")

599

553

600

for name, t in inspect.getmembers(

601

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

554

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

555

lambda obj:

556

isinstance(obj,

557

property)):

602

558

if not name.startswith("_"):

603

559

self.client_structure.append(name)

604

560

646

602

# and every interval from then on.

647

603

if self.checker_initiator_tag is not None:

648

604

gobject.source_remove(self.checker_initiator_tag)

649

self.checker_initiator_tag = gobject.timeout_add(

650

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

651

self.start_checker)

605

self.checker_initiator_tag = (gobject.timeout_add

606

(int(self.interval

607

.total_seconds() * 1000),

608

self.start_checker))

652

609

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

653

610

if self.disable_initiator_tag is not None:

654

611

gobject.source_remove(self.disable_initiator_tag)

655

self.disable_initiator_tag = gobject.timeout_add(

656

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

612

self.disable_initiator_tag = (gobject.timeout_add

613

(int(self.timeout

614

.total_seconds() * 1000),

615

self.disable))

657

616

# Also start a new checker *right now*.

658

617

self.start_checker()

659

618

660

def checker_callback(self, source, condition, connection,

661

command):

619

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

662

620

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

663

621

self.checker_callback_tag = None

664

622

self.checker = None

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

623

if os.WIFEXITED(condition):

624

self.last_checker_status = os.WEXITSTATUS(condition)

672

625

if self.last_checker_status == 0:

673

626

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

674

627

vars(self))

675

628

self.checked_ok()

676

629

else:

677

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

630

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

631

vars(self))

678

632

else:

679

633

self.last_checker_status = -1

680

self.last_checker_signal = -returncode

681

634

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

682

635

vars(self))

683

return False

684

636

685

637

def checked_ok(self):

686

638

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

687

639

self.last_checked_ok = datetime.datetime.utcnow()

688

640

self.last_checker_status = 0

689

self.last_checker_signal = None

690

641

self.bump_timeout()

691

642

692

643

def bump_timeout(self, timeout=None):

697

648

gobject.source_remove(self.disable_initiator_tag)

698

649

self.disable_initiator_tag = None

699

650

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

700

self.disable_initiator_tag = gobject.timeout_add(

701

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

651

self.disable_initiator_tag = (gobject.timeout_add

652

(int(timeout.total_seconds()

653

* 1000), self.disable))

702

654

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

703

655

704

656

def need_approval(self):

718

670

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

719

671

# should be.

720

672

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

673

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

674

try:

675

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

676

except AttributeError:

677

pass

678

except OSError as error:

679

if error.errno != errno.ECHILD:

680

raise

681

else:

682

if pid:

683

logger.warning("Checker was a zombie")

684

gobject.source_remove(self.checker_callback_tag)

685

self.checker_callback(pid, status,

686

self.current_checker_command)

725

687

# Start a new checker if needed

726

688

if self.checker is None:

727

689

# Escape attributes for the shell

728

escaped_attrs = {

729

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

730

for attr in self.runtime_expansions }

690

escaped_attrs = { attr:

691

re.escape(unicode(getattr(self,

692

attr)))

693

for attr in self.runtime_expansions }

731

694

try:

732

695

command = self.checker_command % escaped_attrs

733

696

except TypeError as error:

734

697

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

735

self.checker_command,

698

self.checker_command, exc_info=error)

699

return True # Try again later

700

self.current_checker_command = command

701

try:

702

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

703

command, self.name)

704

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

705

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

706

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

707

# always replaced by /dev/null.)

708

# The exception is when not debugging but nevertheless

709

# running in the foreground; use the previously

710

# created wnull.

711

popen_args = {}

712

if (not self.server_settings["debug"]

713

and self.server_settings["foreground"]):

714

popen_args.update({"stdout": wnull,

715

"stderr": wnull })

716

self.checker = subprocess.Popen(command,

717

close_fds=True,

718

shell=True, cwd="/",

719

**popen_args)

720

except OSError as error:

721

logger.error("Failed to start subprocess",

736

722

exc_info=error)

737

return True # Try again later

738

self.current_checker_command = 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)

723

return True

724

self.checker_callback_tag = (gobject.child_watch_add

725

(self.checker.pid,

726

self.checker_callback,

727

data=command))

728

# The checker may have completed before the gobject

729

# watch was added. Check for this.

730

try:

731

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

732

except OSError as error:

733

if error.errno == errno.ECHILD:

734

# This should never happen

735

logger.error("Child process vanished",

736

exc_info=error)

737

return True

738

raise

739

if pid:

740

gobject.source_remove(self.checker_callback_tag)

741

self.checker_callback(pid, status, command)

764

742

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

765

743

return True

766

744

772

750

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

773

751

return

774

752

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

775

self.checker.terminate()

753

try:

754

self.checker.terminate()

755

#time.sleep(0.5)

756

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

757

# self.checker.kill()

758

except OSError as error:

759

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

760

raise

776

761

self.checker = None

777

762

778

763

779

def dbus_service_property(dbus_interface,

780

signature="v",

781

access="readwrite",

782

byte_arrays=False):

764

def dbus_service_property(dbus_interface, signature="v",

765

access="readwrite", byte_arrays=False):

783

766

"""Decorators for marking methods of a DBusObjectWithProperties to

784

767

become properties on the D-Bus.

785

768

795

778

if byte_arrays and signature != "ay":

796

779

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

797

780

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

798

799

781

def decorator(func):

800

782

func._dbus_is_property = True

801

783

func._dbus_interface = dbus_interface

806

788

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

807

789

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

808

790

return func

809

810

791

return decorator

811

792

812

793

821

802

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

822

803

"false"}

823

804

"""

824

825

805

def decorator(func):

826

806

func._dbus_is_interface = True

827

807

func._dbus_interface = dbus_interface

828

808

func._dbus_name = dbus_interface

829

809

return func

830

831

810

return decorator

832

811

833

812

835

814

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

836

815

Usage:

837

816

838

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

839

"org.freedesktop.DBus.Property."

840

"EmitsChangedSignal": "false"})

841

817

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

842

818

access="r")

819

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

820

"org.freedesktop.DBus.Property."

821

"EmitsChangedSignal": "false"})

843

822

def Property_dbus_property(self):

844

823

return dbus.Boolean(False)

845

824

"""

846

847

825

def decorator(func):

848

826

func._dbus_annotations = annotations

849

827

return func

850

851

828

return decorator

852

829

853

830

854

831

class DBusPropertyException(dbus.exceptions.DBusException):

855

832

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

856

833

"""

857

pass

834

def __unicode__(self):

835

return unicode(str(self))

858

836

859

837

860

838

class DBusPropertyAccessException(DBusPropertyException):

890

868

def _get_all_dbus_things(self, thing):

891

869

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

892

870

"""

893

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

871

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

872

name),

894

873

athing.__get__(self))

895

874

for cls in self.__class__.__mro__

896

875

for name, athing in

897

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

876

inspect.getmembers(cls,

877

self._is_dbus_thing(thing)))

898

878

899

879

def _get_dbus_property(self, interface_name, property_name):

900

880

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

901

881

property with the specified name and interface.

902

882

"""

903

for cls in self.__class__.__mro__:

904

for name, value in inspect.getmembers(

905

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

883

for cls in self.__class__.__mro__:

884

for name, value in (inspect.getmembers

885

(cls,

886

self._is_dbus_thing("property"))):

906

887

if (value._dbus_name == property_name

907

888

and value._dbus_interface == interface_name):

908

889

return value.__get__(self)

909

890

910

891

# No such property

911

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

912

self.dbus_object_path, interface_name, property_name))

892

raise DBusPropertyNotFound(self.dbus_object_path + ":"

893

+ interface_name + "."

894

+ property_name)

913

895

914

@dbus.service.method(dbus.PROPERTIES_IFACE,

915

in_signature="ss",

896

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

916

897

out_signature="v")

917

898

def Get(self, interface_name, property_name):

918

899

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

943

924

for byte in value))

944

925

prop(value)

945

926

946

@dbus.service.method(dbus.PROPERTIES_IFACE,

947

in_signature="s",

927

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

948

928

out_signature="a{sv}")

949

929

def GetAll(self, interface_name):

950

930

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

965

945

if not hasattr(value, "variant_level"):

966

946

properties[name] = value

967

947

continue

968

properties[name] = type(value)(

969

value, variant_level = value.variant_level + 1)

948

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

949

value.variant_level+1)

970

950

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

971

951

972

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

973

def PropertiesChanged(self, interface_name, changed_properties,

974

invalidated_properties):

975

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

976

standard.

977

"""

978

pass

979

980

952

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

981

953

out_signature="s",

982

954

path_keyword='object_path',

990

962

connection)

991

963

try:

992

964

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

993

994

965

def make_tag(document, name, prop):

995

966

e = document.createElement("property")

996

967

e.setAttribute("name", name)

997

968

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

998

969

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

999

970

return e

1000

1001

971

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

1002

972

# Add property tags

1003

973

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

1015

985

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

1016

986

and prop._dbus_interface

1017

987

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

1018

annots.update(getattr(

1019

prop, "_dbus_annotations", {}))

988

annots.update(getattr

989

(prop,

990

"_dbus_annotations",

991

{}))

1020

992

for name, value in annots.items():

1021

993

ann_tag = document.createElement(

1022

994

"annotation")

1027

999

for annotation, value in dict(

1028

1000

itertools.chain.from_iterable(

1029

1001

annotations().items()

1030

for name, annotations

1031

in self._get_all_dbus_things("interface")

1002

for name, annotations in

1003

self._get_all_dbus_things("interface")

1032

1004

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

1033

1005

)).items():

1034

1006

ann_tag = document.createElement("annotation")

1063

1035

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

1064

1036

if dt is None:

1065

1037

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

1066

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

1038

return dbus.String(dt.isoformat(),

1039

variant_level=variant_level)

1067

1040

1068

1041

1069

1042

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1089

1062

(from DBusObjectWithProperties) and interfaces (from the

1090

1063

dbus_interface_annotations decorator).

1091

1064

"""

1092

1093

1065

def wrapper(cls):

1094

1066

for orig_interface_name, alt_interface_name in (

1095

alt_interface_names.items()):

1067

alt_interface_names.items()):

1096

1068

attr = {}

1097

1069

interface_names = set()

1098

1070

# Go though all attributes of the class

1100

1072

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

1101

1073

# with the wrong interface name

1102

1074

if (not hasattr(attribute, "_dbus_interface")

1103

or not attribute._dbus_interface.startswith(

1104

orig_interface_name)):

1075

or not attribute._dbus_interface

1076

.startswith(orig_interface_name)):

1105

1077

continue

1106

1078

# Create an alternate D-Bus interface name based on

1107

1079

# the current name

1108

alt_interface = attribute._dbus_interface.replace(

1109

orig_interface_name, alt_interface_name)

1080

alt_interface = (attribute._dbus_interface

1081

.replace(orig_interface_name,

1082

alt_interface_name))

1110

1083

interface_names.add(alt_interface)

1111

1084

# Is this a D-Bus signal?

1112

1085

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

1113

if sys.version_info.major == 2:

1114

# Extract the original non-method undecorated

1115

# function by black magic

1116

nonmethod_func = (dict(

1086

# Extract the original non-method undecorated

1087

# function by black magic

1088

nonmethod_func = (dict(

1117

1089

zip(attribute.func_code.co_freevars,

1118

attribute.__closure__))

1119

["func"].cell_contents)

1120

else:

1121

nonmethod_func = attribute

1090

attribute.__closure__))["func"]

1091

.cell_contents)

1122

1092

# Create a new, but exactly alike, function

1123

1093

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

1124

1094

# with the alternate D-Bus interface name

1125

if sys.version_info.major == 2:

1126

new_function = types.FunctionType(

1127

nonmethod_func.func_code,

1128

nonmethod_func.func_globals,

1129

nonmethod_func.func_name,

1130

nonmethod_func.func_defaults,

1131

nonmethod_func.func_closure)

1132

else:

1133

new_function = types.FunctionType(

1134

nonmethod_func.__code__,

1135

nonmethod_func.__globals__,

1136

nonmethod_func.__name__,

1137

nonmethod_func.__defaults__,

1138

nonmethod_func.__closure__)

1139

new_function = (dbus.service.signal(

1140

alt_interface,

1141

attribute._dbus_signature)(new_function))

1095

new_function = (dbus.service.signal

1096

(alt_interface,

1097

attribute._dbus_signature)

1098

(types.FunctionType(

1099

nonmethod_func.func_code,

1100

nonmethod_func.func_globals,

1101

nonmethod_func.func_name,

1102

nonmethod_func.func_defaults,

1103

nonmethod_func.func_closure)))

1142

1104

# Copy annotations, if any

1143

1105

try:

1144

new_function._dbus_annotations = dict(

1145

attribute._dbus_annotations)

1106

new_function._dbus_annotations = (

1107

dict(attribute._dbus_annotations))

1146

1108

except AttributeError:

1147

1109

pass

1148

1110

# Define a creator of a function to call both the

1153

1115

"""This function is a scope container to pass

1154

1116

func1 and func2 to the "call_both" function

1155

1117

outside of its arguments"""

1156

1157

1118

def call_both(*args, **kwargs):

1158

1119

"""This function will emit two D-Bus

1159

1120

signals by calling func1 and func2"""

1160

1121

func1(*args, **kwargs)

1161

1122

func2(*args, **kwargs)

1162

1163

1123

return call_both

1164

1124

# Create the "call_both" function and add it to

1165

1125

# the class

1170

1130

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

1171

1131

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

1172

1132

# to the class.

1173

attr[attrname] = (

1174

dbus.service.method(

1175

alt_interface,

1176

attribute._dbus_in_signature,

1177

attribute._dbus_out_signature)

1178

(types.FunctionType(attribute.func_code,

1179

attribute.func_globals,

1180

attribute.func_name,

1181

attribute.func_defaults,

1182

attribute.func_closure)))

1133

attr[attrname] = (dbus.service.method

1134

(alt_interface,

1135

attribute._dbus_in_signature,

1136

attribute._dbus_out_signature)

1137

(types.FunctionType

1138

(attribute.func_code,

1139

attribute.func_globals,

1140

attribute.func_name,

1141

attribute.func_defaults,

1142

attribute.func_closure)))

1183

1143

# Copy annotations, if any

1184

1144

try:

1185

attr[attrname]._dbus_annotations = dict(

1186

attribute._dbus_annotations)

1145

attr[attrname]._dbus_annotations = (

1146

dict(attribute._dbus_annotations))

1187

1147

except AttributeError:

1188

1148

pass

1189

1149

# Is this a D-Bus property?

1192

1152

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

1193

1153

# property with the alternate D-Bus interface

1194

1154

# name. Add it to the class.

1195

attr[attrname] = (dbus_service_property(

1196

alt_interface, attribute._dbus_signature,

1197

attribute._dbus_access,

1198

attribute._dbus_get_args_options

1199

["byte_arrays"])

1200

(types.FunctionType(

1201

attribute.func_code,

1202

attribute.func_globals,

1203

attribute.func_name,

1204

attribute.func_defaults,

1205

attribute.func_closure)))

1155

attr[attrname] = (dbus_service_property

1156

(alt_interface,

1157

attribute._dbus_signature,

1158

attribute._dbus_access,

1159

attribute

1160

._dbus_get_args_options

1161

["byte_arrays"])

1162

(types.FunctionType

1163

(attribute.func_code,

1164

attribute.func_globals,

1165

attribute.func_name,

1166

attribute.func_defaults,

1167

attribute.func_closure)))

1206

1168

# Copy annotations, if any

1207

1169

try:

1208

attr[attrname]._dbus_annotations = dict(

1209

attribute._dbus_annotations)

1170

attr[attrname]._dbus_annotations = (

1171

dict(attribute._dbus_annotations))

1210

1172

except AttributeError:

1211

1173

pass

1212

1174

# Is this a D-Bus interface?

1215

1177

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

1216

1178

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

1217

1179

# to the class.

1218

attr[attrname] = (

1219

dbus_interface_annotations(alt_interface)

1220

(types.FunctionType(attribute.func_code,

1221

attribute.func_globals,

1222

attribute.func_name,

1223

attribute.func_defaults,

1224

attribute.func_closure)))

1180

attr[attrname] = (dbus_interface_annotations

1181

(alt_interface)

1182

(types.FunctionType

1183

(attribute.func_code,

1184

attribute.func_globals,

1185

attribute.func_name,

1186

attribute.func_defaults,

1187

attribute.func_closure)))

1225

1188

if deprecate:

1226

1189

# Deprecate all alternate interfaces

1227

1190

iname="_AlternateDBusNames_interface_annotation{}"

1228

1191

for interface_name in interface_names:

1229

1230

1192

@dbus_interface_annotations(interface_name)

1231

1193

def func(self):

1232

1194

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

1233

"true" }

1195

"true" }

1234

1196

# Find an unused name

1235

1197

for aname in (iname.format(i)

1236

1198

for i in itertools.count()):

1241

1203

# Replace the class with a new subclass of it with

1242

1204

# methods, signals, etc. as created above.

1243

1205

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

1244

(cls, ), attr)

1206

(cls,), attr)

1245

1207

return cls

1246

1247

1208

return wrapper

1248

1209

1249

1210

1250

1211

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

1251

"se.bsnet.fukt.Mandos"})

1212

"se.bsnet.fukt.Mandos"})

1252

1213

class ClientDBus(Client, DBusObjectWithProperties):

1253

1214

"""A Client class using D-Bus

1254

1215

1258

1219

"""

1259

1220

1260

1221

runtime_expansions = (Client.runtime_expansions

1261

+ ("dbus_object_path", ))

1262

1263

_interface = "se.recompile.Mandos.Client"

1222

+ ("dbus_object_path",))

1264

1223

1265

1224

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

1266

1225

1269

1228

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

1270

1229

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

1271

1230

# the D-Bus

1272

client_object_name = str(self.name).translate(

1231

client_object_name = unicode(self.name).translate(

1273

1232

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

1274

1233

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

1275

self.dbus_object_path = dbus.ObjectPath(

1276

"/clients/" + client_object_name)

1234

self.dbus_object_path = (dbus.ObjectPath

1235

("/clients/" + client_object_name))

1277

1236

DBusObjectWithProperties.__init__(self, self.bus,

1278

1237

self.dbus_object_path)

1279

1238

1280

def notifychangeproperty(transform_func, dbus_name,

1281

type_func=lambda x: x,

1282

variant_level=1,

1283

invalidate_only=False,

1284

_interface=_interface):

1239

def notifychangeproperty(transform_func,

1240

dbus_name, type_func=lambda x: x,

1241

variant_level=1):

1285

1242

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

1286

1243

its changes to DBus.

1287

1244

1293

1250

variant_level: D-Bus variant level. Default: 1

1294

1251

"""

1295

1252

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

1296

1297

1253

def setter(self, value):

1298

1254

if hasattr(self, "dbus_object_path"):

1299

1255

if (not hasattr(self, attrname) or

1300

1256

type_func(getattr(self, attrname, None))

1301

1257

!= type_func(value)):

1302

if invalidate_only:

1303

self.PropertiesChanged(

1304

_interface, dbus.Dictionary(),

1305

dbus.Array((dbus_name, )))

1306

else:

1307

dbus_value = transform_func(

1308

type_func(value),

1309

variant_level = variant_level)

1310

self.PropertyChanged(dbus.String(dbus_name),

1311

dbus_value)

1312

self.PropertiesChanged(

1313

_interface,

1314

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

1315

dbus_value }),

1316

dbus.Array())

1258

dbus_value = transform_func(type_func(value),

1259

variant_level

1260

=variant_level)

1261

self.PropertyChanged(dbus.String(dbus_name),

1262

dbus_value)

1317

1263

setattr(self, attrname, value)

1318

1264

1319

1265

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

1325

1271

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

1326

1272

last_enabled = notifychangeproperty(datetime_to_dbus,

1327

1273

"LastEnabled")

1328

checker = notifychangeproperty(

1329

dbus.Boolean, "CheckerRunning",

1330

type_func = lambda checker: checker is not None)

1274

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

1275

type_func = lambda checker:

1276

checker is not None)

1331

1277

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1332

1278

"LastCheckedOK")

1333

1279

last_checker_status = notifychangeproperty(dbus.Int16,

1336

1282

datetime_to_dbus, "LastApprovalRequest")

1337

1283

approved_by_default = notifychangeproperty(dbus.Boolean,

1338

1284

"ApprovedByDefault")

1339

approval_delay = notifychangeproperty(

1340

dbus.UInt64, "ApprovalDelay",

1341

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

1285

approval_delay = notifychangeproperty(dbus.UInt64,

1286

"ApprovalDelay",

1287

type_func =

1288

lambda td: td.total_seconds()

1289

* 1000)

1342

1290

approval_duration = notifychangeproperty(

1343

1291

dbus.UInt64, "ApprovalDuration",

1344

1292

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

1345

1293

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

1346

timeout = notifychangeproperty(

1347

dbus.UInt64, "Timeout",

1348

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

1294

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

1295

type_func = lambda td:

1296

td.total_seconds() * 1000)

1349

1297

extended_timeout = notifychangeproperty(

1350

1298

dbus.UInt64, "ExtendedTimeout",

1351

1299

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

1352

interval = notifychangeproperty(

1353

dbus.UInt64, "Interval",

1354

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

1300

interval = notifychangeproperty(dbus.UInt64,

1301

"Interval",

1302

type_func =

1303

lambda td: td.total_seconds()

1304

* 1000)

1355

1305

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

1356

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

1357

invalidate_only=True)

1358

1306

1359

1307

del notifychangeproperty

1360

1308

1367

1315

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

1368

1316

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

1369

1317

1370

def checker_callback(self, source, condition,

1371

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

1372

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

1373

connection, command, *args,

1374

**kwargs)

1375

exitstatus = self.last_checker_status

1376

if exitstatus >= 0:

1318

def checker_callback(self, pid, condition, command,

1319

*args, **kwargs):

1320

self.checker_callback_tag = None

1321

self.checker = None

1322

if os.WIFEXITED(condition):

1323

exitstatus = os.WEXITSTATUS(condition)

1377

1324

# Emit D-Bus signal

1378

1325

self.CheckerCompleted(dbus.Int16(exitstatus),

1379

dbus.Int64(0),

1326

dbus.Int64(condition),

1380

1327

dbus.String(command))

1381

1328

else:

1382

1329

# Emit D-Bus signal

1383

1330

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

1384

dbus.Int64(

1385

self.last_checker_signal),

1331

dbus.Int64(condition),

1386

1332

dbus.String(command))

1387

return ret

1333

1334

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

1335

*args, **kwargs)

1388

1336

1389

1337

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

1390

1338

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

1407

1355

self.send_changedstate()

1408

1356

1409

1357

## D-Bus methods, signals & properties

1358

_interface = "se.recompile.Mandos.Client"

1410

1359

1411

1360

## Interfaces

1412

1361

1362

@dbus_interface_annotations(_interface)

1363

def _foo(self):

1364

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

1365

"false"}

1366

1413

1367

## Signals

1414

1368

1415

1369

# CheckerCompleted - signal

1425

1379

pass

1426

1380

1427

1381

# PropertyChanged - signal

1428

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

1429

1382

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

1430

1383

def PropertyChanged(self, property, value):

1431

1384

"D-Bus signal"

1495

1448

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

1496

1449

1497

1450

# ApprovedByDefault - property

1498

@dbus_service_property(_interface,

1499

signature="b",

1451

@dbus_service_property(_interface, signature="b",

1500

1452

access="readwrite")

1501

1453

def ApprovedByDefault_dbus_property(self, value=None):

1502

1454

if value is None: # get

1504

1456

self.approved_by_default = bool(value)

1505

1457

1506

1458

# ApprovalDelay - property

1507

@dbus_service_property(_interface,

1508

signature="t",

1459

@dbus_service_property(_interface, signature="t",

1509

1460

access="readwrite")

1510

1461

def ApprovalDelay_dbus_property(self, value=None):

1511

1462

if value is None: # get

1514

1465

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

1515

1466

1516

1467

# ApprovalDuration - property

1517

@dbus_service_property(_interface,

1518

signature="t",

1468

@dbus_service_property(_interface, signature="t",

1519

1469

access="readwrite")

1520

1470

def ApprovalDuration_dbus_property(self, value=None):

1521

1471

if value is None: # get

1534

1484

return dbus.String(self.fingerprint)

1535

1485

1536

1486

# Host - property

1537

@dbus_service_property(_interface,

1538

signature="s",

1487

@dbus_service_property(_interface, signature="s",

1539

1488

access="readwrite")

1540

1489

def Host_dbus_property(self, value=None):

1541

1490

if value is None: # get

1542

1491

return dbus.String(self.host)

1543

self.host = str(value)

1492

self.host = unicode(value)

1544

1493

1545

1494

# Created - property

1546

1495

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

1553

1502

return datetime_to_dbus(self.last_enabled)

1554

1503

1555

1504

# Enabled - property

1556

@dbus_service_property(_interface,

1557

signature="b",

1505

@dbus_service_property(_interface, signature="b",

1558

1506

access="readwrite")

1559

1507

def Enabled_dbus_property(self, value=None):

1560

1508

if value is None: # get

1565

1513

self.disable()

1566

1514

1567

1515

# LastCheckedOK - property

1568

@dbus_service_property(_interface,

1569

signature="s",

1516

@dbus_service_property(_interface, signature="s",

1570

1517

access="readwrite")

1571

1518

def LastCheckedOK_dbus_property(self, value=None):

1572

1519

if value is not None:

1575

1522

return datetime_to_dbus(self.last_checked_ok)

1576

1523

1577

1524

# LastCheckerStatus - property

1578

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

1525

@dbus_service_property(_interface, signature="n",

1526

access="read")

1579

1527

def LastCheckerStatus_dbus_property(self):

1580

1528

return dbus.Int16(self.last_checker_status)

1581

1529

1590

1538

return datetime_to_dbus(self.last_approval_request)

1591

1539

1592

1540

# Timeout - property

1593

@dbus_service_property(_interface,

1594

signature="t",

1541

@dbus_service_property(_interface, signature="t",

1595

1542

access="readwrite")

1596

1543

def Timeout_dbus_property(self, value=None):

1597

1544

if value is None: # get

1610

1557

is None):

1611

1558

return

1612

1559

gobject.source_remove(self.disable_initiator_tag)

1613

self.disable_initiator_tag = gobject.timeout_add(

1614

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

1615

self.disable)

1560

self.disable_initiator_tag = (

1561

gobject.timeout_add(

1562

int((self.expires - now).total_seconds()

1563

* 1000), self.disable))

1616

1564

1617

1565

# ExtendedTimeout - property

1618

@dbus_service_property(_interface,

1619

signature="t",

1566

@dbus_service_property(_interface, signature="t",

1620

1567

access="readwrite")

1621

1568

def ExtendedTimeout_dbus_property(self, value=None):

1622

1569

if value is None: # get

1625

1572

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

1626

1573

1627

1574

# Interval - property

1628

@dbus_service_property(_interface,

1629

signature="t",

1575

@dbus_service_property(_interface, signature="t",

1630

1576

access="readwrite")

1631

1577

def Interval_dbus_property(self, value=None):

1632

1578

if value is None: # get

1637

1583

if self.enabled:

1638

1584

# Reschedule checker run

1639

1585

gobject.source_remove(self.checker_initiator_tag)

1640

self.checker_initiator_tag = gobject.timeout_add(

1641

value, self.start_checker)

1642

self.start_checker() # Start one now, too

1586

self.checker_initiator_tag = (gobject.timeout_add

1587

(value, self.start_checker))

1588

self.start_checker() # Start one now, too

1643

1589

1644

1590

# Checker - property

1645

@dbus_service_property(_interface,

1646

signature="s",

1591

@dbus_service_property(_interface, signature="s",

1647

1592

access="readwrite")

1648

1593

def Checker_dbus_property(self, value=None):

1649

1594

if value is None: # get

1650

1595

return dbus.String(self.checker_command)

1651

self.checker_command = str(value)

1596

self.checker_command = unicode(value)

1652

1597

1653

1598

# CheckerRunning - property

1654

@dbus_service_property(_interface,

1655

signature="b",

1599

@dbus_service_property(_interface, signature="b",

1656

1600

access="readwrite")

1657

1601

def CheckerRunning_dbus_property(self, value=None):

1658

1602

if value is None: # get

1668

1612

return self.dbus_object_path # is already a dbus.ObjectPath

1669

1613

1670

1614

# Secret = property

1671

@dbus_service_property(_interface,

1672

signature="ay",

1673

access="write",

1674

byte_arrays=True)

1615

@dbus_service_property(_interface, signature="ay",

1616

access="write", byte_arrays=True)

1675

1617

def Secret_dbus_property(self, value):

1676

self.secret = bytes(value)

1618

self.secret = str(value)

1677

1619

1678

1620

del _interface

1679

1621

1683

1625

self._pipe = child_pipe

1684

1626

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

1685

1627

if not self._pipe.recv():

1686

raise KeyError(fpr)

1628

raise KeyError()

1687

1629

1688

1630

def __getattribute__(self, name):

1689

1631

if name == '_pipe':

1693

1635

if data[0] == 'data':

1694

1636

return data[1]

1695

1637

if data[0] == 'function':

1696

1697

1638

def func(*args, **kwargs):

1698

1639

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

1699

1640

return self._pipe.recv()[1]

1700

1701

1641

return func

1702

1642

1703

1643

def __setattr__(self, name, value):

1715

1655

def handle(self):

1716

1656

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

1717

1657

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

1718

str(self.client_address))

1658

unicode(self.client_address))

1719

1659

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

1720

1660

self.server.child_pipe.fileno())

1721

1661

1722

session = gnutls.connection.ClientSession(

1723

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

1662

session = (gnutls.connection

1663

.ClientSession(self.request,

1664

gnutls.connection

1665

.X509Credentials()))

1724

1666

1725

1667

# Note: gnutls.connection.X509Credentials is really a

1726

1668

# generic GnuTLS certificate credentials object so long as

1735

1677

priority = self.server.gnutls_priority

1736

1678

if priority is None:

1737

1679

priority = "NORMAL"

1738

gnutls.library.functions.gnutls_priority_set_direct(

1739

session._c_object, priority, None)

1680

(gnutls.library.functions

1681

.gnutls_priority_set_direct(session._c_object,

1682

priority, None))

1740

1683

1741

1684

# Start communication using the Mandos protocol

1742

1685

# Get protocol number

1762

1705

approval_required = False

1763

1706

try:

1764

1707

try:

1765

fpr = self.fingerprint(

1766

self.peer_certificate(session))

1708

fpr = self.fingerprint(self.peer_certificate

1709

(session))

1767

1710

except (TypeError,

1768

1711

gnutls.errors.GNUTLSError) as error:

1769

1712

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

1784

1727

while True:

1785

1728

if not client.enabled:

1786

1729

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

1787

client.name)

1730

client.name)

1788

1731

if self.server.use_dbus:

1789

1732

# Emit D-Bus signal

1790

1733

client.Rejected("Disabled")

1837

1780

logger.warning("gnutls send failed",

1838

1781

exc_info=error)

1839

1782

return

1840

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

1841

len(client.secret) - (sent_size

1842

+ sent))

1783

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

1784

sent, len(client.secret)

1785

- (sent_size + sent))

1843

1786

sent_size += sent

1844

1787

1845

1788

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

1862

1805

def peer_certificate(session):

1863

1806

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

1864

1807

# If not an OpenPGP certificate...

1865

if (gnutls.library.functions.gnutls_certificate_type_get(

1866

session._c_object)

1808

if (gnutls.library.functions

1809

.gnutls_certificate_type_get(session._c_object)

1867

1810

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1868

1811

# ...do the normal thing

1869

1812

return session.peer_certificate

1883

1826

def fingerprint(openpgp):

1884

1827

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

1885

1828

# New GnuTLS "datum" with the OpenPGP public key

1886

datum = gnutls.library.types.gnutls_datum_t(

1887

ctypes.cast(ctypes.c_char_p(openpgp),

1888

ctypes.POINTER(ctypes.c_ubyte)),

1889

ctypes.c_uint(len(openpgp)))

1829

datum = (gnutls.library.types

1830

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

1831

ctypes.POINTER

1832

(ctypes.c_ubyte)),

1833

ctypes.c_uint(len(openpgp))))

1890

1834

# New empty GnuTLS certificate

1891

1835

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1892

gnutls.library.functions.gnutls_openpgp_crt_init(

1893

ctypes.byref(crt))

1836

(gnutls.library.functions

1837

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

1894

1838

# Import the OpenPGP public key into the certificate

1895

gnutls.library.functions.gnutls_openpgp_crt_import(

1896

crt, ctypes.byref(datum),

1897

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

1839

(gnutls.library.functions

1840

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

1841

gnutls.library.constants

1842

.GNUTLS_OPENPGP_FMT_RAW))

1898

1843

# Verify the self signature in the key

1899

1844

crtverify = ctypes.c_uint()

1900

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

1901

crt, 0, ctypes.byref(crtverify))

1845

(gnutls.library.functions

1846

.gnutls_openpgp_crt_verify_self(crt, 0,

1847

ctypes.byref(crtverify)))

1902

1848

if crtverify.value != 0:

1903

1849

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1904

raise gnutls.errors.CertificateSecurityError(

1905

"Verify failed")

1850

raise (gnutls.errors.CertificateSecurityError

1851

("Verify failed"))

1906

1852

# New buffer for the fingerprint

1907

1853

buf = ctypes.create_string_buffer(20)

1908

1854

buf_len = ctypes.c_size_t()

1909

1855

# Get the fingerprint from the certificate into the buffer

1910

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

1911

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

1856

(gnutls.library.functions

1857

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

1858

ctypes.byref(buf_len)))

1912

1859

# Deinit the certificate

1913

1860

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1914

1861

# Convert the buffer to a Python bytestring

1920

1867

1921

1868

class MultiprocessingMixIn(object):

1922

1869

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

1923

1924

1870

def sub_process_main(self, request, address):

1925

1871

try:

1926

1872

self.finish_request(request, address)

1938

1884

1939

1885

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1940

1886

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

1941

1942

1887

def process_request(self, request, client_address):

1943

1888

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

1944

1889

1965

1910

interface: None or a network interface name (string)

1966

1911

use_ipv6: Boolean; to use IPv6 or not

1967

1912

"""

1968

1969

1913

def __init__(self, server_address, RequestHandlerClass,

1970

interface=None,

1971

use_ipv6=True,

1972

socketfd=None):

1914

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

1973

1915

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

1974

1916

creating a new one with socket.socket().

1975

1917

"""

2016

1958

self.interface)

2017

1959

else:

2018

1960

try:

2019

self.socket.setsockopt(

2020

socket.SOL_SOCKET, SO_BINDTODEVICE,

2021

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

1961

self.socket.setsockopt(socket.SOL_SOCKET,

1962

SO_BINDTODEVICE,

1963

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

2022

1964

except socket.error as error:

2023

1965

if error.errno == errno.EPERM:

2024

1966

logger.error("No permission to bind to"

2042

1984

self.server_address = (any_address,

2043

1985

self.server_address[1])

2044

1986

elif not self.server_address[1]:

2045

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

1987

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

1988

0)

2046

1989

# if self.interface:

2047

1990

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

2048

1991

# 0, # port

2062

2005

2063

2006

Assumes a gobject.MainLoop event loop.

2064

2007

"""

2065

2066

2008

def __init__(self, server_address, RequestHandlerClass,

2067

interface=None,

2068

use_ipv6=True,

2069

clients=None,

2070

gnutls_priority=None,

2071

use_dbus=True,

2072

socketfd=None):

2009

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

2010

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

2073

2011

self.enabled = False

2074

2012

self.clients = clients

2075

2013

if self.clients is None:

2081

2019

interface = interface,

2082

2020

use_ipv6 = use_ipv6,

2083

2021

socketfd = socketfd)

2084

2085

2022

def server_activate(self):

2086

2023

if self.enabled:

2087

2024

return socketserver.TCPServer.server_activate(self)

2091

2028

2092

2029

def add_pipe(self, parent_pipe, proc):

2093

2030

# Call "handle_ipc" for both data and EOF events

2094

gobject.io_add_watch(

2095

parent_pipe.fileno(),

2096

gobject.IO_IN | gobject.IO_HUP,

2097

functools.partial(self.handle_ipc,

2098

parent_pipe = parent_pipe,

2099

proc = proc))

2031

gobject.io_add_watch(parent_pipe.fileno(),

2032

gobject.IO_IN | gobject.IO_HUP,

2033

functools.partial(self.handle_ipc,

2034

parent_pipe =

2035

parent_pipe,

2036

proc = proc))

2100

2037

2101

def handle_ipc(self, source, condition,

2102

parent_pipe=None,

2103

proc = None,

2104

client_object=None):

2038

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

2039

proc = None, client_object=None):

2105

2040

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

2106

2041

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

2107

2042

# Wait for other process to exit

2130

2065

parent_pipe.send(False)

2131

2066

return False

2132

2067

2133

gobject.io_add_watch(

2134

parent_pipe.fileno(),

2135

gobject.IO_IN | gobject.IO_HUP,

2136

functools.partial(self.handle_ipc,

2137

parent_pipe = parent_pipe,

2138

proc = proc,

2139

client_object = client))

2068

gobject.io_add_watch(parent_pipe.fileno(),

2069

gobject.IO_IN | gobject.IO_HUP,

2070

functools.partial(self.handle_ipc,

2071

parent_pipe =

2072

parent_pipe,

2073

proc = proc,

2074

client_object =

2075

client))

2140

2076

parent_pipe.send(True)

2141

2077

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

2142

2078

# same fileno

2148

2084

2149

2085

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

2150

2086

funcname)(*args,

2151

**kwargs)))

2087

**kwargs)))

2152

2088

2153

2089

if command == 'getattr':

2154

2090

attrname = request[1]

2155

if isinstance(client_object.__getattribute__(attrname),

2156

collections.Callable):

2157

parent_pipe.send(('function', ))

2091

if callable(client_object.__getattribute__(attrname)):

2092

parent_pipe.send(('function',))

2158

2093

else:

2159

parent_pipe.send((

2160

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

2094

parent_pipe.send(('data', client_object

2095

.__getattribute__(attrname)))

2161

2096

2162

2097

if command == 'setattr':

2163

2098

attrname = request[1]

2194

2129

# avoid excessive use of external libraries.

2195

2130

2196

2131

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

2197

Token = collections.namedtuple("Token", (

2198

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

2199

# a "group" containing digits

2200

"value", # datetime.timedelta or None

2201

"followers")) # Tokens valid after this token

2132

Token = collections.namedtuple("Token",

2133

("regexp", # To match token; if

2134

# "value" is not None,

2135

# must have a "group"

2136

# containing digits

2137

"value", # datetime.timedelta or

2138

# None

2139

"followers")) # Tokens valid after

2140

# this token

2202

2141

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

2203

2142

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

2204

2143

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

2205

2144

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

2206

2145

datetime.timedelta(seconds=1),

2207

frozenset((token_end, )))

2146

frozenset((token_end,)))

2208

2147

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

2209

2148

datetime.timedelta(minutes=1),

2210

2149

frozenset((token_second, token_end)))

2226

2165

frozenset((token_month, token_end)))

2227

2166

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

2228

2167

datetime.timedelta(weeks=1),

2229

frozenset((token_end, )))

2168

frozenset((token_end,)))

2230

2169

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

2231

2170

frozenset((token_year, token_month,

2232

2171

token_day, token_time,

2234

2173

# Define starting values

2235

2174

value = datetime.timedelta() # Value so far

2236

2175

found_token = None

2237

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

2176

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

2238

2177

s = duration # String left to parse

2239

2178

# Loop until end token is found

2240

2179

while found_token is not token_end:

2257

2196

break

2258

2197

else:

2259

2198

# No currently valid tokens were found

2260

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

2261

.format(duration))

2199

raise ValueError("Invalid RFC 3339 duration")

2262

2200

# End token found

2263

2201

return value

2264

2202

2288

2226

timevalue = datetime.timedelta(0)

2289

2227

for s in interval.split():

2290

2228

try:

2291

suffix = s[-1]

2229

suffix = unicode(s[-1])

2292

2230

value = int(s[:-1])

2293

2231

if suffix == "d":

2294

2232

delta = datetime.timedelta(value)

2301

2239

elif suffix == "w":

2302

2240

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

2303

2241

else:

2304

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

2242

raise ValueError("Unknown suffix {!r}"

2243

.format(suffix))

2305

2244

except IndexError as e:

2306

2245

raise ValueError(*(e.args))

2307

2246

timevalue += delta

2323

2262

# Close all standard open file descriptors

2324

2263

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

2325

2264

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

2326

raise OSError(errno.ENODEV,

2327

"{} not a character device"

2265

raise OSError(errno.ENODEV, "{} not a character device"

2328

2266

.format(os.devnull))

2329

2267

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

2330

2268

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

2396

2334

"port": "",

2397

2335

"debug": "False",

2398

2336

"priority":

2399

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

2400

":+SIGN-DSA-SHA256",

2337

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

2401

2338

"servicename": "Mandos",

2402

2339

"use_dbus": "True",

2403

2340

"use_ipv6": "True",

2407

2344

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

2408

2345

"foreground": "False",

2409

2346

"zeroconf": "True",

2410

}

2347

}

2411

2348

2412

2349

# Parse config file for server-global settings

2413

2350

server_config = configparser.SafeConfigParser(server_defaults)

2414

2351

del server_defaults

2415

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

2352

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

2353

"mandos.conf"))

2416

2354

# Convert the SafeConfigParser object to a dict

2417

2355

server_settings = server_config.defaults()

2418

2356

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

2436

2374

# Override the settings from the config file with command line

2437

2375

# options, if set.

2438

2376

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

2439

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

2440

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

2441

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

2377

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

2378

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

2379

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

2442

2380

value = getattr(options, option)

2443

2381

if value is not None:

2444

2382

server_settings[option] = value

2445

2383

del options

2446

2384

# Force all strings to be unicode

2447

2385

for option in server_settings.keys():

2448

if isinstance(server_settings[option], bytes):

2449

server_settings[option] = (server_settings[option]

2450

.decode("utf-8"))

2386

if type(server_settings[option]) is str:

2387

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

2451

2388

# Force all boolean options to be boolean

2452

2389

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

2453

2390

"foreground", "zeroconf"):

2459

2396

2460

2397

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

2461

2398

2462

if (not server_settings["zeroconf"]

2463

and not (server_settings["port"]

2464

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

2465

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

2399

if (not server_settings["zeroconf"] and

2400

not (server_settings["port"]

2401

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

2402

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

2403

" Zeroconf")

2466

2404

2467

2405

# For convenience

2468

2406

debug = server_settings["debug"]

2484

2422

initlogger(debug, level)

2485

2423

2486

2424

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

2487

syslogger.setFormatter(

2488

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

2489

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

2490

server_settings["servicename"])))

2425

syslogger.setFormatter(logging.Formatter

2426

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

2427

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

2428

.format(server_settings

2429

["servicename"])))

2491

2430

2492

2431

# Parse config file with clients

2493

2432

client_config = configparser.SafeConfigParser(Client

2501

2440

socketfd = None

2502

2441

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

2503

2442

socketfd = server_settings["socket"]

2504

tcp_server = MandosServer(

2505

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

2506

ClientHandler,

2507

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

2508

use_ipv6=use_ipv6,

2509

gnutls_priority=server_settings["priority"],

2510

use_dbus=use_dbus,

2511

socketfd=socketfd)

2443

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

2444

server_settings["port"]),

2445

ClientHandler,

2446

interface=(server_settings["interface"]

2447

or None),

2448

use_ipv6=use_ipv6,

2449

gnutls_priority=

2450

server_settings["priority"],

2451

use_dbus=use_dbus,

2452

socketfd=socketfd)

2512

2453

if not foreground:

2513

2454

pidfilename = "/run/mandos.pid"

2514

2455

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

2515

2456

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

2516

2457

pidfile = None

2517

2458

try:

2518

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

2459

pidfile = open(pidfilename, "w")

2519

2460

except IOError as e:

2520

2461

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

2521

2462

exc_info=e)

2548

2489

def debug_gnutls(level, string):

2549

2490

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

2550

2491

2551

gnutls.library.functions.gnutls_global_set_log_function(

2552

debug_gnutls)

2492

(gnutls.library.functions

2493

.gnutls_global_set_log_function(debug_gnutls))

2553

2494

2554

2495

# Redirect stdin so all checkers get /dev/null

2555

2496

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

2575

2516

if use_dbus:

2576

2517

try:

2577

2518

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

2578

bus,

2579

do_not_queue=True)

2580

old_bus_name = dbus.service.BusName(

2581

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

2582

do_not_queue=True)

2583

except dbus.exceptions.DBusException as e:

2519

bus, do_not_queue=True)

2520

old_bus_name = (dbus.service.BusName

2521

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

2522

do_not_queue=True))

2523

except dbus.exceptions.NameExistsException as e:

2584

2524

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

2585

2525

use_dbus = False

2586

2526

server_settings["use_dbus"] = False

2587

2527

tcp_server.use_dbus = False

2588

2528

if zeroconf:

2589

2529

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2590

service = AvahiServiceToSyslog(

2591

name = server_settings["servicename"],

2592

servicetype = "_mandos._tcp",

2593

protocol = protocol,

2594

bus = bus)

2530

service = AvahiServiceToSyslog(name =

2531

server_settings["servicename"],

2532

servicetype = "_mandos._tcp",

2533

protocol = protocol, bus = bus)

2595

2534

if server_settings["interface"]:

2596

service.interface = if_nametoindex(

2597

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

2535

service.interface = (if_nametoindex

2536

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

2598

2537

2599

2538

global multiprocessing_manager

2600

2539

multiprocessing_manager = multiprocessing.Manager()

2619

2558

if server_settings["restore"]:

2620

2559

try:

2621

2560

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

2622

clients_data, old_client_settings = pickle.load(

2623

stored_state)

2561

clients_data, old_client_settings = (pickle.load

2562

(stored_state))

2624

2563

os.remove(stored_state_path)

2625

2564

except IOError as e:

2626

2565

if e.errno == errno.ENOENT:

2627

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

2628

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

2566

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

2567

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

2629

2568

else:

2630

2569

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

2631

2570

exc_info=e)

2632

2571

raise

2633

2572

except EOFError as e:

2634

2573

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

2635

"EOFError:",

2636

exc_info=e)

2574

"EOFError:", exc_info=e)

2637

2575

2638

2576

with PGPEngine() as pgp:

2639

2577

for client_name, client in clients_data.items():

2651

2589

# For each value in new config, check if it

2652

2590

# differs from the old config value (Except for

2653

2591

# the "secret" attribute)

2654

if (name != "secret"

2655

and (value !=

2656

old_client_settings[client_name][name])):

2592

if (name != "secret" and

2593

value != old_client_settings[client_name]

2594

[name]):

2657

2595

client[name] = value

2658

2596

except KeyError:

2659

2597

pass

2660

2598

2661

2599

# Clients who has passed its expire date can still be

2662

# enabled if its last checker was successful. A Client

2600

# enabled if its last checker was successful. Clients

2663

2601

# whose checker succeeded before we stored its state is

2664

2602

# assumed to have successfully run all checkers during

2665

2603

# downtime.

2668

2606

if not client["last_checked_ok"]:

2669

2607

logger.warning(

2670

2608

"disabling client {} - Client never "

2671

"performed a successful checker".format(

2672

client_name))

2609

"performed a successful checker"

2610

.format(client_name))

2673

2611

client["enabled"] = False

2674

2612

elif client["last_checker_status"] != 0:

2675

2613

logger.warning(

2676

2614

"disabling client {} - Client last"

2677

" checker failed with error code"

2678

" {}".format(

2679

client_name,

2680

client["last_checker_status"]))

2615

" checker failed with error code {}"

2616

.format(client_name,

2617

client["last_checker_status"]))

2681

2618

client["enabled"] = False

2682

2619

else:

2683

client["expires"] = (

2684

datetime.datetime.utcnow()

2685

+ client["timeout"])

2620

client["expires"] = (datetime.datetime

2621

.utcnow()

2622

+ client["timeout"])

2686

2623

logger.debug("Last checker succeeded,"

2687

" keeping {} enabled".format(

2688

client_name))

2624

" keeping {} enabled"

2625

.format(client_name))

2689

2626

try:

2690

client["secret"] = pgp.decrypt(

2691

client["encrypted_secret"],

2692

client_settings[client_name]["secret"])

2627

client["secret"] = (

2628

pgp.decrypt(client["encrypted_secret"],

2629

client_settings[client_name]

2630

["secret"]))

2693

2631

except PGPError:

2694

2632

# If decryption fails, we use secret from new settings

2695

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

2696

client_name))

2697

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

2698

["secret"])

2633

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

2634

.format(client_name))

2635

client["secret"] = (

2636

client_settings[client_name]["secret"])

2699

2637

2700

2638

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

2701

2639

for client_name in (set(old_client_settings)

2708

2646

# Create all client objects

2709

2647

for client_name, client in clients_data.items():

2710

2648

tcp_server.clients[client_name] = client_class(

2711

name = client_name,

2712

settings = client,

2649

name = client_name, settings = client,

2713

2650

server_settings = server_settings)

2714

2651

2715

2652

if not tcp_server.clients:

2717

2654

2718

2655

if not foreground:

2719

2656

if pidfile is not None:

2720

pid = os.getpid()

2721

2657

try:

2722

2658

with pidfile:

2723

print(pid, file=pidfile)

2659

pid = os.getpid()

2660

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

2724

2661

except IOError:

2725

2662

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

2726

2663

pidfilename, pid)

2731

2668

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

2732

2669

2733

2670

if use_dbus:

2734

2735

@alternate_dbus_interfaces(

2736

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

2671

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

2672

"se.bsnet.fukt.Mandos"})

2737

2673

class MandosDBusService(DBusObjectWithProperties):

2738

2674

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

2739

2740

2675

def __init__(self):

2741

2676

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

2742

2743

2677

_interface = "se.recompile.Mandos"

2744

2678

2745

2679

@dbus_interface_annotations(_interface)

2746

2680

def _foo(self):

2747

return {

2748

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

2749

"false" }

2681

return { "org.freedesktop.DBus.Property"

2682

".EmitsChangedSignal":

2683

"false"}

2750

2684

2751

2685

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

2752

2686

def ClientAdded(self, objpath):

2766

2700

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

2767

2701

def GetAllClients(self):

2768

2702

"D-Bus method"

2769

return dbus.Array(c.dbus_object_path for c in

2703

return dbus.Array(c.dbus_object_path

2704

for c in

2770

2705

tcp_server.clients.itervalues())

2771

2706

2772

2707

@dbus.service.method(_interface,

2774

2709

def GetAllClientsWithProperties(self):

2775

2710

"D-Bus method"

2776

2711

return dbus.Dictionary(

2777

{ c.dbus_object_path: c.GetAll("")

2778

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

2712

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

2713

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

2779

2714

signature="oa{sv}")

2780

2715

2781

2716

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

2821

2756

# + secret.

2822

2757

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

2823

2758

"checker", "server_settings" }

2824

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

2825

.Object):

2759

for name, typ in (inspect.getmembers

2760

(dbus.service.Object)):

2826

2761

exclude.add(name)

2827

2762

2828

2763

client_dict["encrypted_secret"] = (client

2835

2770

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

2836

2771

2837

2772

try:

2838

with tempfile.NamedTemporaryFile(

2839

mode='wb',

2840

suffix=".pickle",

2841

prefix='clients-',

2842

dir=os.path.dirname(stored_state_path),

2843

delete=False) as stored_state:

2773

with (tempfile.NamedTemporaryFile

2774

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

2775

dir=os.path.dirname(stored_state_path),

2776

delete=False)) as stored_state:

2844

2777

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

2845

tempname = stored_state.name

2778

tempname=stored_state.name

2846

2779

os.rename(tempname, stored_state_path)

2847

2780

except (IOError, OSError) as e:

2848

2781

if not debug:

2867

2800

client.disable(quiet=True)

2868

2801

if use_dbus:

2869

2802

# Emit D-Bus signal

2870

mandos_dbus_service.ClientRemoved(

2871

client.dbus_object_path, client.name)

2803

mandos_dbus_service.ClientRemoved(client

2804

.dbus_object_path,

2805

client.name)

2872

2806

client_settings.clear()

2873

2807

2874

2808

atexit.register(cleanup)

2927

2861

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

2928

2862

cleanup()

2929

2863

2930

2931

2864

if __name__ == '__main__':

2932

2865

main()