/mandos/trunk : revision 714

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#!/usr/bin/python2.7

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#!/usr/bin/python

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

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#

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

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

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#

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# Everything else is

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#

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

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

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from future_builtins import *

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try:

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import SocketServer as socketserver

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except ImportError:

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import socketserver

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import SocketServer as socketserver

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import socket

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import argparse

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import datetime

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import 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 = "1.6.6"

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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: {0!s}"

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.format(error))

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def cleanup(self):

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

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

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

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

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bad_states = {

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avahi.SERVER_INVALID: "Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION: "Zeroconf server name collision",

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avahi.SERVER_FAILURE: "Zeroconf server failure",

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}

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bad_states = { avahi.SERVER_INVALID:

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"Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION:

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"Zeroconf server name collision",

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avahi.SERVER_FAILURE:

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"Zeroconf server failure" }

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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

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follow_name_owner_changes=True),

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avahi.DBUS_INTERFACE_SERVER)

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self.server.connect_to_signal("StateChanged",

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self.server_state_changed)

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self.server_state_changed)

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

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class AvahiServiceToSyslog(AvahiService):

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

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def rename(self):

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

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

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syslogger.setFormatter(logging.Formatter(

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

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.format(self.name)))

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ret = AvahiService.rename(self)

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syslogger.setFormatter(logging.Formatter

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

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

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.format(self.name)))

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return ret

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def 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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class Client(object):

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

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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")

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client_defaults = {

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"timeout": "PT5M",

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"extended_timeout": "PT15M",

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"interval": "PT2M",

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

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"host": "",

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"approval_delay": "PT0S",

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"approval_duration": "PT1S",

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"approved_by_default": "True",

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"enabled": "True",

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}

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client_defaults = { "timeout": "PT5M",

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"extended_timeout": "PT15M",

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"interval": "PT2M",

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

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"host": "",

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"approval_delay": "PT0S",

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"approval_duration": "PT1S",

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"approved_by_default": "True",

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"enabled": "True",

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}

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def timeout_milliseconds(self):

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"Return the 'timeout' attribute in milliseconds"

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return timedelta_to_milliseconds(self.timeout)

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def extended_timeout_milliseconds(self):

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"Return the 'extended_timeout' attribute in milliseconds"

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return timedelta_to_milliseconds(self.extended_timeout)

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def interval_milliseconds(self):

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"Return the 'interval' attribute in milliseconds"

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return timedelta_to_milliseconds(self.interval)

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def approval_delay_milliseconds(self):

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return timedelta_to_milliseconds(self.approval_delay)

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@staticmethod

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def config_parser(config):

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

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"enabled")

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# Uppercase and remove spaces from fingerprint for later

510

# comparison purposes with return value from the

511

# fingerprint() function

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

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.replace(" ", ""))

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if "secret" in section:

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"rb") as secfile:

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

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else:

522

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

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

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517

.format(section))

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

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client["extended_timeout"] = string_to_delta(

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536

server_settings = {}

543

537

self.server_settings = server_settings

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# adding all client settings

545

for setting, value in settings.items():

539

for setting, value in settings.iteritems():

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setattr(self, setting, value)

547

541

548

542

if self.enabled:

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550

self.expires = None

557

551

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

553

# Uppercase and remove spaces from fingerprint for later

554

# comparison purposes with return value from the fingerprint()

555

# function

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

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

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datetime.datetime.utcnow())

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565

self.current_checker_command = None

569

566

self.approved = None

570

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self.approvals_pending = 0

571

self.changedstate = multiprocessing_manager.Condition(

572

multiprocessing_manager.Lock())

573

self.client_structure = [attr

574

for attr in self.__dict__.iterkeys()

568

self.changedstate = (multiprocessing_manager

569

.Condition(multiprocessing_manager

570

.Lock()))

571

self.client_structure = [attr for attr in

572

self.__dict__.iterkeys()

575

573

if not attr.startswith("_")]

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574

self.client_structure.append("client_structure")

577

575

578

for name, t in inspect.getmembers(

579

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

576

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

577

lambda obj:

578

isinstance(obj,

579

property)):

580

if not name.startswith("_"):

581

self.client_structure.append(name)

582

624

# and every interval from then on.

625

if self.checker_initiator_tag is not None:

626

gobject.source_remove(self.checker_initiator_tag)

627

self.checker_initiator_tag = gobject.timeout_add(

628

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

629

self.start_checker)

627

self.checker_initiator_tag = (gobject.timeout_add

628

(self.interval_milliseconds(),

629

self.start_checker))

630

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

631

if self.disable_initiator_tag is not None:

632

gobject.source_remove(self.disable_initiator_tag)

633

self.disable_initiator_tag = gobject.timeout_add(

634

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

633

self.disable_initiator_tag = (gobject.timeout_add

634

(self.timeout_milliseconds(),

635

self.disable))

635

636

# Also start a new checker *right now*.

636

637

self.start_checker()

637

638

646

647

vars(self))

647

648

self.checked_ok()

648

649

else:

649

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

650

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

651

vars(self))

650

652

else:

651

653

self.last_checker_status = -1

652

654

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

666

668

gobject.source_remove(self.disable_initiator_tag)

667

669

self.disable_initiator_tag = None

668

670

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

669

self.disable_initiator_tag = gobject.timeout_add(

670

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

671

self.disable_initiator_tag = (gobject.timeout_add

672

(timedelta_to_milliseconds

673

(timeout), self.disable))

671

674

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

672

675

673

676

def need_approval(self):

704

707

# Start a new checker if needed

705

708

if self.checker is None:

706

709

# Escape attributes for the shell

707

escaped_attrs = {

708

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

709

for attr in self.runtime_expansions }

710

escaped_attrs = dict(

711

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

712

for attr in

713

self.runtime_expansions)

710

714

try:

711

715

command = self.checker_command % escaped_attrs

712

716

except TypeError as error:

713

717

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

714

self.checker_command,

715

exc_info=error)

716

return True # Try again later

718

self.checker_command, exc_info=error)

719

return True # Try again later

717

720

self.current_checker_command = command

718

721

try:

719

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

720

self.name)

722

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

723

command, self.name)

721

724

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

722

725

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

723

726

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

732

735

"stderr": wnull })

733

736

self.checker = subprocess.Popen(command,

734

737

close_fds=True,

735

shell=True,

736

cwd="/",

738

shell=True, cwd="/",

737

739

**popen_args)

738

740

except OSError as error:

739

741

logger.error("Failed to start subprocess",

740

742

exc_info=error)

741

743

return True

742

self.checker_callback_tag = gobject.child_watch_add(

743

self.checker.pid, self.checker_callback, data=command)

744

self.checker_callback_tag = (gobject.child_watch_add

745

(self.checker.pid,

746

self.checker_callback,

747

data=command))

744

748

# The checker may have completed before the gobject

745

749

# watch was added. Check for this.

746

750

try:

777

781

self.checker = None

778

782

779

783

780

def dbus_service_property(dbus_interface,

781

signature="v",

782

access="readwrite",

783

byte_arrays=False):

784

def dbus_service_property(dbus_interface, signature="v",

785

access="readwrite", byte_arrays=False):

784

786

"""Decorators for marking methods of a DBusObjectWithProperties to

785

787

become properties on the D-Bus.

786

788

795

797

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

796

798

if byte_arrays and signature != "ay":

797

799

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

798

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

799

800

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

800

801

def decorator(func):

801

802

func._dbus_is_property = True

802

803

func._dbus_interface = dbus_interface

807

808

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

808

809

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

809

810

return func

810

811

return decorator

812

813

822

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

823

"false"}

824

"""

825

826

825

def decorator(func):

827

826

func._dbus_is_interface = True

828

827

func._dbus_interface = dbus_interface

829

828

func._dbus_name = dbus_interface

830

829

return func

831

832

830

return decorator

833

831

834

832

836

834

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

837

835

Usage:

838

836

839

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

840

"org.freedesktop.DBus.Property."

841

"EmitsChangedSignal": "false"})

842

837

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

843

838

access="r")

839

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

840

"org.freedesktop.DBus.Property."

841

"EmitsChangedSignal": "false"})

844

842

def Property_dbus_property(self):

845

843

return dbus.Boolean(False)

846

844

"""

847

848

845

def decorator(func):

849

846

func._dbus_annotations = annotations

850

847

return func

851

852

848

return decorator

853

849

854

850

855

851

class DBusPropertyException(dbus.exceptions.DBusException):

856

852

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

857

853

"""

858

pass

854

def __unicode__(self):

855

return unicode(str(self))

859

856

860

857

861

858

class DBusPropertyAccessException(DBusPropertyException):

885

882

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

886

883

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

887

884

"""

888

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

885

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

889

886

False)

890

887

891

888

def _get_all_dbus_things(self, thing):

892

889

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

893

890

"""

894

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

891

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

892

name),

895

893

athing.__get__(self))

896

894

for cls in self.__class__.__mro__

897

895

for name, athing in

898

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

896

inspect.getmembers(cls,

897

self._is_dbus_thing(thing)))

899

898

900

899

def _get_dbus_property(self, interface_name, property_name):

901

900

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

902

901

property with the specified name and interface.

903

902

"""

904

for cls in self.__class__.__mro__:

905

for name, value in inspect.getmembers(

906

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

903

for cls in self.__class__.__mro__:

904

for name, value in (inspect.getmembers

905

(cls,

906

self._is_dbus_thing("property"))):

907

if (value._dbus_name == property_name

908

and value._dbus_interface == interface_name):

909

return value.__get__(self)

910

911

# No such property

912

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

913

self.dbus_object_path, interface_name, property_name))

912

raise DBusPropertyNotFound(self.dbus_object_path + ":"

913

+ interface_name + "."

914

+ property_name)

914

915

@dbus.service.method(dbus.PROPERTIES_IFACE,

916

in_signature="ss",

916

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

917

out_signature="v")

918

def Get(self, interface_name, property_name):

919

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

938

# signatures other than "ay".

939

if prop._dbus_signature != "ay":

940

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

941

"'ay' signature {!r}"

941

"'ay' signature {0!r}"

942

.format(prop._dbus_signature))

943

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

944

for byte in value))

945

prop(value)

946

947

@dbus.service.method(dbus.PROPERTIES_IFACE,

948

in_signature="s",

947

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

949

948

out_signature="a{sv}")

950

949

def GetAll(self, interface_name):

951

950

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

966

965

if not hasattr(value, "variant_level"):

967

966

properties[name] = value

968

967

continue

969

properties[name] = type(value)(

970

value, variant_level = value.variant_level + 1)

968

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

969

value.variant_level+1)

971

970

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

972

971

973

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

974

def PropertiesChanged(self, interface_name, changed_properties,

975

invalidated_properties):

976

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

977

standard.

978

"""

979

pass

980

981

972

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

982

973

out_signature="s",

983

974

path_keyword='object_path',

991

982

connection)

992

983

try:

993

984

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

994

995

985

def make_tag(document, name, prop):

996

986

e = document.createElement("property")

997

987

e.setAttribute("name", name)

998

988

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

999

989

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

1000

990

return e

1001

1002

991

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

1003

992

# Add property tags

1004

993

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

1016

1005

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

1017

1006

and prop._dbus_interface

1018

1007

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

1019

annots.update(getattr(

1020

prop, "_dbus_annotations", {}))

1021

for name, value in annots.items():

1008

annots.update(getattr

1009

(prop,

1010

"_dbus_annotations",

1011

{}))

1012

for name, value in annots.iteritems():

1022

1013

ann_tag = document.createElement(

1023

1014

"annotation")

1024

1015

ann_tag.setAttribute("name", name)

1027

1018

# Add interface annotation tags

1028

1019

for annotation, value in dict(

1029

1020

itertools.chain.from_iterable(

1030

annotations().items()

1031

for name, annotations

1032

in self._get_all_dbus_things("interface")

1021

annotations().iteritems()

1022

for name, annotations in

1023

self._get_all_dbus_things("interface")

1033

1024

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

1034

)).items():

1025

)).iteritems():

1035

1026

ann_tag = document.createElement("annotation")

1036

1027

ann_tag.setAttribute("name", annotation)

1037

1028

ann_tag.setAttribute("value", value)

1064

1055

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

1065

1056

if dt is None:

1066

1057

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

1067

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

1058

return dbus.String(dt.isoformat(),

1059

variant_level=variant_level)

1068

1060

1069

1061

1070

1062

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1090

1082

(from DBusObjectWithProperties) and interfaces (from the

1091

1083

dbus_interface_annotations decorator).

1092

1084

"""

1093

1094

1085

def wrapper(cls):

1095

1086

for orig_interface_name, alt_interface_name in (

1096

alt_interface_names.items()):

1087

alt_interface_names.iteritems()):

1097

1088

attr = {}

1098

1089

interface_names = set()

1099

1090

# Go though all attributes of the class

1101

1092

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

1102

1093

# with the wrong interface name

1103

1094

if (not hasattr(attribute, "_dbus_interface")

1104

or not attribute._dbus_interface.startswith(

1105

orig_interface_name)):

1095

or not attribute._dbus_interface

1096

.startswith(orig_interface_name)):

1106

1097

continue

1107

1098

# Create an alternate D-Bus interface name based on

1108

1099

# the current name

1109

alt_interface = attribute._dbus_interface.replace(

1110

orig_interface_name, alt_interface_name)

1100

alt_interface = (attribute._dbus_interface

1101

.replace(orig_interface_name,

1102

alt_interface_name))

1111

1103

interface_names.add(alt_interface)

1112

1104

# Is this a D-Bus signal?

1113

1105

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

1114

if sys.version == 2:

1115

# Extract the original non-method undecorated

1116

# function by black magic

1117

nonmethod_func = (dict(

1106

# Extract the original non-method undecorated

1107

# function by black magic

1108

nonmethod_func = (dict(

1118

1109

zip(attribute.func_code.co_freevars,

1119

attribute.__closure__))

1120

["func"].cell_contents)

1121

else:

1122

nonmethod_func = attribute

1110

attribute.__closure__))["func"]

1111

.cell_contents)

1123

1112

# Create a new, but exactly alike, function

1124

1113

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

1125

1114

# with the alternate D-Bus interface name

1126

if sys.version == 2:

1127

new_function = types.FunctionType(

1128

nonmethod_func.func_code,

1129

nonmethod_func.func_globals,

1130

nonmethod_func.func_name,

1131

nonmethod_func.func_defaults,

1132

nonmethod_func.func_closure)

1133

else:

1134

new_function = types.FunctionType(

1135

nonmethod_func.__code__,

1136

nonmethod_func.__globals__,

1137

nonmethod_func.__name__,

1138

nonmethod_func.__defaults__,

1139

nonmethod_func.__closure__)

1140

new_function = (dbus.service.signal(

1141

alt_interface,

1142

attribute._dbus_signature)(new_function))

1115

new_function = (dbus.service.signal

1116

(alt_interface,

1117

attribute._dbus_signature)

1118

(types.FunctionType(

1119

nonmethod_func.func_code,

1120

nonmethod_func.func_globals,

1121

nonmethod_func.func_name,

1122

nonmethod_func.func_defaults,

1123

nonmethod_func.func_closure)))

1143

1124

# Copy annotations, if any

1144

1125

try:

1145

new_function._dbus_annotations = dict(

1146

attribute._dbus_annotations)

1126

new_function._dbus_annotations = (

1127

dict(attribute._dbus_annotations))

1147

1128

except AttributeError:

1148

1129

pass

1149

1130

# Define a creator of a function to call both the

1154

1135

"""This function is a scope container to pass

1155

1136

func1 and func2 to the "call_both" function

1156

1137

outside of its arguments"""

1157

1158

1138

def call_both(*args, **kwargs):

1159

1139

"""This function will emit two D-Bus

1160

1140

signals by calling func1 and func2"""

1161

1141

func1(*args, **kwargs)

1162

1142

func2(*args, **kwargs)

1163

1164

1143

return call_both

1165

1144

# Create the "call_both" function and add it to

1166

1145

# the class

1171

1150

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

1172

1151

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

1173

1152

# to the class.

1174

attr[attrname] = (

1175

dbus.service.method(

1176

alt_interface,

1177

attribute._dbus_in_signature,

1178

attribute._dbus_out_signature)

1179

(types.FunctionType(attribute.func_code,

1180

attribute.func_globals,

1181

attribute.func_name,

1182

attribute.func_defaults,

1183

attribute.func_closure)))

1153

attr[attrname] = (dbus.service.method

1154

(alt_interface,

1155

attribute._dbus_in_signature,

1156

attribute._dbus_out_signature)

1157

(types.FunctionType

1158

(attribute.func_code,

1159

attribute.func_globals,

1160

attribute.func_name,

1161

attribute.func_defaults,

1162

attribute.func_closure)))

1184

1163

# Copy annotations, if any

1185

1164

try:

1186

attr[attrname]._dbus_annotations = dict(

1187

attribute._dbus_annotations)

1165

attr[attrname]._dbus_annotations = (

1166

dict(attribute._dbus_annotations))

1188

1167

except AttributeError:

1189

1168

pass

1190

1169

# Is this a D-Bus property?

1193

1172

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

1194

1173

# property with the alternate D-Bus interface

1195

1174

# name. Add it to the class.

1196

attr[attrname] = (dbus_service_property(

1197

alt_interface, attribute._dbus_signature,

1198

attribute._dbus_access,

1199

attribute._dbus_get_args_options

1200

["byte_arrays"])

1201

(types.FunctionType(

1202

attribute.func_code,

1203

attribute.func_globals,

1204

attribute.func_name,

1205

attribute.func_defaults,

1206

attribute.func_closure)))

1175

attr[attrname] = (dbus_service_property

1176

(alt_interface,

1177

attribute._dbus_signature,

1178

attribute._dbus_access,

1179

attribute

1180

._dbus_get_args_options

1181

["byte_arrays"])

1182

(types.FunctionType

1183

(attribute.func_code,

1184

attribute.func_globals,

1185

attribute.func_name,

1186

attribute.func_defaults,

1187

attribute.func_closure)))

1207

1188

# Copy annotations, if any

1208

1189

try:

1209

attr[attrname]._dbus_annotations = dict(

1210

attribute._dbus_annotations)

1190

attr[attrname]._dbus_annotations = (

1191

dict(attribute._dbus_annotations))

1211

1192

except AttributeError:

1212

1193

pass

1213

1194

# Is this a D-Bus interface?

1216

1197

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

1217

1198

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

1218

1199

# to the class.

1219

attr[attrname] = (

1220

dbus_interface_annotations(alt_interface)

1221

(types.FunctionType(attribute.func_code,

1222

attribute.func_globals,

1223

attribute.func_name,

1224

attribute.func_defaults,

1225

attribute.func_closure)))

1200

attr[attrname] = (dbus_interface_annotations

1201

(alt_interface)

1202

(types.FunctionType

1203

(attribute.func_code,

1204

attribute.func_globals,

1205

attribute.func_name,

1206

attribute.func_defaults,

1207

attribute.func_closure)))

1226

1208

if deprecate:

1227

1209

# Deprecate all alternate interfaces

1228

iname="_AlternateDBusNames_interface_annotation{}"

1210

iname="_AlternateDBusNames_interface_annotation{0}"

1229

1211

for interface_name in interface_names:

1230

1231

1212

@dbus_interface_annotations(interface_name)

1232

1213

def func(self):

1233

1214

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

1234

"true" }

1215

"true" }

1235

1216

# Find an unused name

1236

1217

for aname in (iname.format(i)

1237

1218

for i in itertools.count()):

1241

1222

if interface_names:

1242

1223

# Replace the class with a new subclass of it with

1243

1224

# methods, signals, etc. as created above.

1244

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

1245

(cls, ), attr)

1225

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

1226

(cls,), attr)

1246

1227

return cls

1247

1248

1228

return wrapper

1249

1229

1250

1230

1251

1231

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

1252

"se.bsnet.fukt.Mandos"})

1232

"se.bsnet.fukt.Mandos"})

1253

1233

class ClientDBus(Client, DBusObjectWithProperties):

1254

1234

"""A Client class using D-Bus

1255

1235

1259

1239

"""

1260

1240

1261

1241

runtime_expansions = (Client.runtime_expansions

1262

+ ("dbus_object_path", ))

1263

1264

_interface = "se.recompile.Mandos.Client"

1242

+ ("dbus_object_path",))

1265

1243

1266

1244

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

1267

1245

1270

1248

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

1271

1249

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

1272

1250

# the D-Bus

1273

client_object_name = str(self.name).translate(

1251

client_object_name = unicode(self.name).translate(

1274

1252

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

1275

1253

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

1276

self.dbus_object_path = dbus.ObjectPath(

1277

"/clients/" + client_object_name)

1254

self.dbus_object_path = (dbus.ObjectPath

1255

("/clients/" + client_object_name))

1278

1256

DBusObjectWithProperties.__init__(self, self.bus,

1279

1257

self.dbus_object_path)

1280

1258

1281

def notifychangeproperty(transform_func, dbus_name,

1282

type_func=lambda x: x,

1283

variant_level=1,

1284

invalidate_only=False,

1285

_interface=_interface):

1259

def notifychangeproperty(transform_func,

1260

dbus_name, type_func=lambda x: x,

1261

variant_level=1):

1286

1262

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

1287

1263

its changes to DBus.

1288

1264

1293

1269

to the D-Bus. Default: no transform

1294

1270

variant_level: D-Bus variant level. Default: 1

1295

1271

"""

1296

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

1297

1272

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

1298

1273

def setter(self, value):

1299

1274

if hasattr(self, "dbus_object_path"):

1300

1275

if (not hasattr(self, attrname) or

1301

1276

type_func(getattr(self, attrname, None))

1302

1277

!= type_func(value)):

1303

if invalidate_only:

1304

self.PropertiesChanged(

1305

_interface, dbus.Dictionary(),

1306

dbus.Array((dbus_name, )))

1307

else:

1308

dbus_value = transform_func(

1309

type_func(value),

1310

variant_level = variant_level)

1311

self.PropertyChanged(dbus.String(dbus_name),

1312

dbus_value)

1313

self.PropertiesChanged(

1314

_interface,

1315

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

1316

dbus_value }),

1317

dbus.Array())

1278

dbus_value = transform_func(type_func(value),

1279

variant_level

1280

=variant_level)

1281

self.PropertyChanged(dbus.String(dbus_name),

1282

dbus_value)

1318

1283

setattr(self, attrname, value)

1319

1284

1320

1285

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

1326

1291

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

1327

1292

last_enabled = notifychangeproperty(datetime_to_dbus,

1328

1293

"LastEnabled")

1329

checker = notifychangeproperty(

1330

dbus.Boolean, "CheckerRunning",

1331

type_func = lambda checker: checker is not None)

1294

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

1295

type_func = lambda checker:

1296

checker is not None)

1332

1297

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1333

1298

"LastCheckedOK")

1334

1299

last_checker_status = notifychangeproperty(dbus.Int16,

1337

1302

datetime_to_dbus, "LastApprovalRequest")

1338

1303

approved_by_default = notifychangeproperty(dbus.Boolean,

1339

1304

"ApprovedByDefault")

1340

approval_delay = notifychangeproperty(

1341

dbus.UInt64, "ApprovalDelay",

1342

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

1305

approval_delay = notifychangeproperty(dbus.UInt64,

1306

"ApprovalDelay",

1307

type_func =

1308

timedelta_to_milliseconds)

1343

1309

approval_duration = notifychangeproperty(

1344

1310

dbus.UInt64, "ApprovalDuration",

1345

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

1311

type_func = timedelta_to_milliseconds)

1346

1312

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

1347

timeout = notifychangeproperty(

1348

dbus.UInt64, "Timeout",

1349

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

1313

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

1314

type_func =

1315

timedelta_to_milliseconds)

1350

1316

extended_timeout = notifychangeproperty(

1351

1317

dbus.UInt64, "ExtendedTimeout",

1352

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

1353

interval = notifychangeproperty(

1354

dbus.UInt64, "Interval",

1355

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

1318

type_func = timedelta_to_milliseconds)

1319

interval = notifychangeproperty(dbus.UInt64,

1320

"Interval",

1321

type_func =

1322

timedelta_to_milliseconds)

1356

1323

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

1357

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

1358

invalidate_only=True)

1359

1324

1360

1325

del notifychangeproperty

1361

1326

1403

1368

1404

1369

def approve(self, value=True):

1405

1370

self.approved = value

1406

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

1407

* 1000), self._reset_approved)

1371

gobject.timeout_add(timedelta_to_milliseconds

1372

(self.approval_duration),

1373

self._reset_approved)

1408

1374

self.send_changedstate()

1409

1375

1410

1376

## D-Bus methods, signals & properties

1377

_interface = "se.recompile.Mandos.Client"

1411

1378

1412

1379

## Interfaces

1413

1380

1381

@dbus_interface_annotations(_interface)

1382

def _foo(self):

1383

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

1384

"false"}

1385

1414

1386

## Signals

1415

1387

1416

1388

# CheckerCompleted - signal

1426

1398

pass

1427

1399

1428

1400

# PropertyChanged - signal

1429

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

1430

1401

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

1431

1402

def PropertyChanged(self, property, value):

1432

1403

"D-Bus signal"

1496

1467

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

1497

1468

1498

1469

# ApprovedByDefault - property

1499

@dbus_service_property(_interface,

1500

signature="b",

1470

@dbus_service_property(_interface, signature="b",

1501

1471

access="readwrite")

1502

1472

def ApprovedByDefault_dbus_property(self, value=None):

1503

1473

if value is None: # get

1505

1475

self.approved_by_default = bool(value)

1506

1476

1507

1477

# ApprovalDelay - property

1508

@dbus_service_property(_interface,

1509

signature="t",

1478

@dbus_service_property(_interface, signature="t",

1510

1479

access="readwrite")

1511

1480

def ApprovalDelay_dbus_property(self, value=None):

1512

1481

if value is None: # get

1513

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

1514

* 1000)

1482

return dbus.UInt64(self.approval_delay_milliseconds())

1515

1483

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

1516

1484

1517

1485

# ApprovalDuration - property

1518

@dbus_service_property(_interface,

1519

signature="t",

1486

@dbus_service_property(_interface, signature="t",

1520

1487

access="readwrite")

1521

1488

def ApprovalDuration_dbus_property(self, value=None):

1522

1489

if value is None: # get

1523

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

1524

* 1000)

1490

return dbus.UInt64(timedelta_to_milliseconds(

1491

self.approval_duration))

1525

1492

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

1526

1493

1527

1494

# Name - property

1535

1502

return dbus.String(self.fingerprint)

1536

1503

1537

1504

# Host - property

1538

@dbus_service_property(_interface,

1539

signature="s",

1505

@dbus_service_property(_interface, signature="s",

1540

1506

access="readwrite")

1541

1507

def Host_dbus_property(self, value=None):

1542

1508

if value is None: # get

1543

1509

return dbus.String(self.host)

1544

self.host = str(value)

1510

self.host = unicode(value)

1545

1511

1546

1512

# Created - property

1547

1513

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

1554

1520

return datetime_to_dbus(self.last_enabled)

1555

1521

1556

1522

# Enabled - property

1557

@dbus_service_property(_interface,

1558

signature="b",

1523

@dbus_service_property(_interface, signature="b",

1559

1524

access="readwrite")

1560

1525

def Enabled_dbus_property(self, value=None):

1561

1526

if value is None: # get

1566

1531

self.disable()

1567

1532

1568

1533

# LastCheckedOK - property

1569

@dbus_service_property(_interface,

1570

signature="s",

1534

@dbus_service_property(_interface, signature="s",

1571

1535

access="readwrite")

1572

1536

def LastCheckedOK_dbus_property(self, value=None):

1573

1537

if value is not None:

1576

1540

return datetime_to_dbus(self.last_checked_ok)

1577

1541

1578

1542

# LastCheckerStatus - property

1579

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

1543

@dbus_service_property(_interface, signature="n",

1544

access="read")

1580

1545

def LastCheckerStatus_dbus_property(self):

1581

1546

return dbus.Int16(self.last_checker_status)

1582

1547

1591

1556

return datetime_to_dbus(self.last_approval_request)

1592

1557

1593

1558

# Timeout - property

1594

@dbus_service_property(_interface,

1595

signature="t",

1559

@dbus_service_property(_interface, signature="t",

1596

1560

access="readwrite")

1597

1561

def Timeout_dbus_property(self, value=None):

1598

1562

if value is None: # get

1599

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

1563

return dbus.UInt64(self.timeout_milliseconds())

1600

1564

old_timeout = self.timeout

1601

1565

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

1602

1566

# Reschedule disabling

1611

1575

is None):

1612

1576

return

1613

1577

gobject.source_remove(self.disable_initiator_tag)

1614

self.disable_initiator_tag = gobject.timeout_add(

1615

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

1616

self.disable)

1578

self.disable_initiator_tag = (

1579

gobject.timeout_add(

1580

timedelta_to_milliseconds(self.expires - now),

1581

self.disable))

1617

1582

1618

1583

# ExtendedTimeout - property

1619

@dbus_service_property(_interface,

1620

signature="t",

1584

@dbus_service_property(_interface, signature="t",

1621

1585

access="readwrite")

1622

1586

def ExtendedTimeout_dbus_property(self, value=None):

1623

1587

if value is None: # get

1624

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

1625

* 1000)

1588

return dbus.UInt64(self.extended_timeout_milliseconds())

1626

1589

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

1627

1590

1628

1591

# Interval - property

1629

@dbus_service_property(_interface,

1630

signature="t",

1592

@dbus_service_property(_interface, signature="t",

1631

1593

access="readwrite")

1632

1594

def Interval_dbus_property(self, value=None):

1633

1595

if value is None: # get

1634

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

1596

return dbus.UInt64(self.interval_milliseconds())

1635

1597

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

1636

1598

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

1637

1599

return

1638

1600

if self.enabled:

1639

1601

# Reschedule checker run

1640

1602

gobject.source_remove(self.checker_initiator_tag)

1641

self.checker_initiator_tag = gobject.timeout_add(

1642

value, self.start_checker)

1643

self.start_checker() # Start one now, too

1603

self.checker_initiator_tag = (gobject.timeout_add

1604

(value, self.start_checker))

1605

self.start_checker() # Start one now, too

1644

1606

1645

1607

# Checker - property

1646

@dbus_service_property(_interface,

1647

signature="s",

1608

@dbus_service_property(_interface, signature="s",

1648

1609

access="readwrite")

1649

1610

def Checker_dbus_property(self, value=None):

1650

1611

if value is None: # get

1651

1612

return dbus.String(self.checker_command)

1652

self.checker_command = str(value)

1613

self.checker_command = unicode(value)

1653

1614

1654

1615

# CheckerRunning - property

1655

@dbus_service_property(_interface,

1656

signature="b",

1616

@dbus_service_property(_interface, signature="b",

1657

1617

access="readwrite")

1658

1618

def CheckerRunning_dbus_property(self, value=None):

1659

1619

if value is None: # get

1669

1629

return self.dbus_object_path # is already a dbus.ObjectPath

1670

1630

1671

1631

# Secret = property

1672

@dbus_service_property(_interface,

1673

signature="ay",

1674

access="write",

1675

byte_arrays=True)

1632

@dbus_service_property(_interface, signature="ay",

1633

access="write", byte_arrays=True)

1676

1634

def Secret_dbus_property(self, value):

1677

self.secret = bytes(value)

1635

self.secret = str(value)

1678

1636

1679

1637

del _interface

1680

1638

1684

1642

self._pipe = child_pipe

1685

1643

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

1686

1644

if not self._pipe.recv():

1687

raise KeyError(fpr)

1645

raise KeyError()

1688

1646

1689

1647

def __getattribute__(self, name):

1690

1648

if name == '_pipe':

1694

1652

if data[0] == 'data':

1695

1653

return data[1]

1696

1654

if data[0] == 'function':

1697

1698

1655

def func(*args, **kwargs):

1699

1656

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

1700

1657

return self._pipe.recv()[1]

1701

1702

1658

return func

1703

1659

1704

1660

def __setattr__(self, name, value):

1716

1672

def handle(self):

1717

1673

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

1718

1674

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

1719

str(self.client_address))

1675

unicode(self.client_address))

1720

1676

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

1721

1677

self.server.child_pipe.fileno())

1722

1678

1723

session = gnutls.connection.ClientSession(

1724

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

1679

session = (gnutls.connection

1680

.ClientSession(self.request,

1681

gnutls.connection

1682

.X509Credentials()))

1725

1683

1726

1684

# Note: gnutls.connection.X509Credentials is really a

1727

1685

# generic GnuTLS certificate credentials object so long as

1736

1694

priority = self.server.gnutls_priority

1737

1695

if priority is None:

1738

1696

priority = "NORMAL"

1739

gnutls.library.functions.gnutls_priority_set_direct(

1740

session._c_object, priority, None)

1697

(gnutls.library.functions

1698

.gnutls_priority_set_direct(session._c_object,

1699

priority, None))

1741

1700

1742

1701

# Start communication using the Mandos protocol

1743

1702

# Get protocol number

1763

1722

approval_required = False

1764

1723

try:

1765

1724

try:

1766

fpr = self.fingerprint(

1767

self.peer_certificate(session))

1725

fpr = self.fingerprint(self.peer_certificate

1726

(session))

1768

1727

except (TypeError,

1769

1728

gnutls.errors.GNUTLSError) as error:

1770

1729

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

1785

1744

while True:

1786

1745

if not client.enabled:

1787

1746

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

1788

client.name)

1747

client.name)

1789

1748

if self.server.use_dbus:

1790

1749

# Emit D-Bus signal

1791

1750

client.Rejected("Disabled")

1800

1759

if self.server.use_dbus:

1801

1760

# Emit D-Bus signal

1802

1761

client.NeedApproval(

1803

client.approval_delay.total_seconds()

1804

* 1000, client.approved_by_default)

1762

client.approval_delay_milliseconds(),

1763

client.approved_by_default)

1805

1764

else:

1806

1765

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

1807

1766

client.name)

1813

1772

#wait until timeout or approved

1814

1773

time = datetime.datetime.now()

1815

1774

client.changedstate.acquire()

1816

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

1775

client.changedstate.wait(

1776

float(timedelta_to_milliseconds(delay)

1777

/ 1000))

1817

1778

client.changedstate.release()

1818

1779

time2 = datetime.datetime.now()

1819

1780

if (time2 - time) >= delay:

1838

1799

logger.warning("gnutls send failed",

1839

1800

exc_info=error)

1840

1801

return

1841

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

1842

len(client.secret) - (sent_size

1843

+ sent))

1802

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

1803

sent, len(client.secret)

1804

- (sent_size + sent))

1844

1805

sent_size += sent

1845

1806

1846

1807

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

1863

1824

def peer_certificate(session):

1864

1825

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

1865

1826

# If not an OpenPGP certificate...

1866

if (gnutls.library.functions.gnutls_certificate_type_get(

1867

session._c_object)

1827

if (gnutls.library.functions

1828

.gnutls_certificate_type_get(session._c_object)

1868

1829

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1869

1830

# ...do the normal thing

1870

1831

return session.peer_certificate

1884

1845

def fingerprint(openpgp):

1885

1846

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

1886

1847

# New GnuTLS "datum" with the OpenPGP public key

1887

datum = gnutls.library.types.gnutls_datum_t(

1888

ctypes.cast(ctypes.c_char_p(openpgp),

1889

ctypes.POINTER(ctypes.c_ubyte)),

1890

ctypes.c_uint(len(openpgp)))

1848

datum = (gnutls.library.types

1849

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

1850

ctypes.POINTER

1851

(ctypes.c_ubyte)),

1852

ctypes.c_uint(len(openpgp))))

1891

1853

# New empty GnuTLS certificate

1892

1854

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1893

gnutls.library.functions.gnutls_openpgp_crt_init(

1894

ctypes.byref(crt))

1855

(gnutls.library.functions

1856

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

1895

1857

# Import the OpenPGP public key into the certificate

1896

gnutls.library.functions.gnutls_openpgp_crt_import(

1897

crt, ctypes.byref(datum),

1898

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

1858

(gnutls.library.functions

1859

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

1860

gnutls.library.constants

1861

.GNUTLS_OPENPGP_FMT_RAW))

1899

1862

# Verify the self signature in the key

1900

1863

crtverify = ctypes.c_uint()

1901

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

1902

crt, 0, ctypes.byref(crtverify))

1864

(gnutls.library.functions

1865

.gnutls_openpgp_crt_verify_self(crt, 0,

1866

ctypes.byref(crtverify)))

1903

1867

if crtverify.value != 0:

1904

1868

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1905

raise gnutls.errors.CertificateSecurityError(

1906

"Verify failed")

1869

raise (gnutls.errors.CertificateSecurityError

1870

("Verify failed"))

1907

1871

# New buffer for the fingerprint

1908

1872

buf = ctypes.create_string_buffer(20)

1909

1873

buf_len = ctypes.c_size_t()

1910

1874

# Get the fingerprint from the certificate into the buffer

1911

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

1912

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

1875

(gnutls.library.functions

1876

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

1877

ctypes.byref(buf_len)))

1913

1878

# Deinit the certificate

1914

1879

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1915

1880

# Convert the buffer to a Python bytestring

1921

1886

1922

1887

class MultiprocessingMixIn(object):

1923

1888

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

1924

1925

1889

def sub_process_main(self, request, address):

1926

1890

try:

1927

1891

self.finish_request(request, address)

1939

1903

1940

1904

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1941

1905

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

1942

1943

1906

def process_request(self, request, client_address):

1944

1907

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

1945

1908

1966

1929

interface: None or a network interface name (string)

1967

1930

use_ipv6: Boolean; to use IPv6 or not

1968

1931

"""

1969

1970

1932

def __init__(self, server_address, RequestHandlerClass,

1971

interface=None,

1972

use_ipv6=True,

1973

socketfd=None):

1933

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

1974

1934

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

1975

1935

creating a new one with socket.socket().

1976

1936

"""

2017

1977

self.interface)

2018

1978

else:

2019

1979

try:

2020

self.socket.setsockopt(

2021

socket.SOL_SOCKET, SO_BINDTODEVICE,

2022

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

1980

self.socket.setsockopt(socket.SOL_SOCKET,

1981

SO_BINDTODEVICE,

1982

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

2023

1983

except socket.error as error:

2024

1984

if error.errno == errno.EPERM:

2025

1985

logger.error("No permission to bind to"

2043

2003

self.server_address = (any_address,

2044

2004

self.server_address[1])

2045

2005

elif not self.server_address[1]:

2046

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

2006

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

2007

0)

2047

2008

# if self.interface:

2048

2009

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

2049

2010

# 0, # port

2063

2024

2064

2025

Assumes a gobject.MainLoop event loop.

2065

2026

"""

2066

2067

2027

def __init__(self, server_address, RequestHandlerClass,

2068

interface=None,

2069

use_ipv6=True,

2070

clients=None,

2071

gnutls_priority=None,

2072

use_dbus=True,

2073

socketfd=None):

2028

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

2029

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

2074

2030

self.enabled = False

2075

2031

self.clients = clients

2076

2032

if self.clients is None:

2082

2038

interface = interface,

2083

2039

use_ipv6 = use_ipv6,

2084

2040

socketfd = socketfd)

2085

2086

2041

def server_activate(self):

2087

2042

if self.enabled:

2088

2043

return socketserver.TCPServer.server_activate(self)

2092

2047

2093

2048

def add_pipe(self, parent_pipe, proc):

2094

2049

# Call "handle_ipc" for both data and EOF events

2095

gobject.io_add_watch(

2096

parent_pipe.fileno(),

2097

gobject.IO_IN | gobject.IO_HUP,

2098

functools.partial(self.handle_ipc,

2099

parent_pipe = parent_pipe,

2100

proc = proc))

2050

gobject.io_add_watch(parent_pipe.fileno(),

2051

gobject.IO_IN | gobject.IO_HUP,

2052

functools.partial(self.handle_ipc,

2053

parent_pipe =

2054

parent_pipe,

2055

proc = proc))

2101

2056

2102

def handle_ipc(self, source, condition,

2103

parent_pipe=None,

2104

proc = None,

2105

client_object=None):

2057

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

2058

proc = None, client_object=None):

2106

2059

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

2107

2060

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

2108

2061

# Wait for other process to exit

2131

2084

parent_pipe.send(False)

2132

2085

return False

2133

2086

2134

gobject.io_add_watch(

2135

parent_pipe.fileno(),

2136

gobject.IO_IN | gobject.IO_HUP,

2137

functools.partial(self.handle_ipc,

2138

parent_pipe = parent_pipe,

2139

proc = proc,

2140

client_object = client))

2087

gobject.io_add_watch(parent_pipe.fileno(),

2088

gobject.IO_IN | gobject.IO_HUP,

2089

functools.partial(self.handle_ipc,

2090

parent_pipe =

2091

parent_pipe,

2092

proc = proc,

2093

client_object =

2094

client))

2141

2095

parent_pipe.send(True)

2142

2096

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

2143

2097

# same fileno

2149

2103

2150

2104

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

2151

2105

funcname)(*args,

2152

**kwargs)))

2106

**kwargs)))

2153

2107

2154

2108

if command == 'getattr':

2155

2109

attrname = request[1]

2156

if isinstance(client_object.__getattribute__(attrname),

2157

collections.Callable):

2158

parent_pipe.send(('function', ))

2110

if callable(client_object.__getattribute__(attrname)):

2111

parent_pipe.send(('function',))

2159

2112

else:

2160

parent_pipe.send((

2161

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

2113

parent_pipe.send(('data', client_object

2114

.__getattribute__(attrname)))

2162

2115

2163

2116

if command == 'setattr':

2164

2117

attrname = request[1]

2195

2148

# avoid excessive use of external libraries.

2196

2149

2197

2150

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

2198

Token = collections.namedtuple("Token", (

2199

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

2200

# a "group" containing digits

2201

"value", # datetime.timedelta or None

2202

"followers")) # Tokens valid after this token

2151

Token = collections.namedtuple("Token",

2152

("regexp", # To match token; if

2153

# "value" is not None,

2154

# must have a "group"

2155

# containing digits

2156

"value", # datetime.timedelta or

2157

# None

2158

"followers")) # Tokens valid after

2159

# this token

2203

2160

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

2204

2161

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

2205

2162

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

2206

2163

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

2207

2164

datetime.timedelta(seconds=1),

2208

frozenset((token_end, )))

2165

frozenset((token_end,)))

2209

2166

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

2210

2167

datetime.timedelta(minutes=1),

2211

2168

frozenset((token_second, token_end)))

2227

2184

frozenset((token_month, token_end)))

2228

2185

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

2229

2186

datetime.timedelta(weeks=1),

2230

frozenset((token_end, )))

2187

frozenset((token_end,)))

2231

2188

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

2232

2189

frozenset((token_year, token_month,

2233

2190

token_day, token_time,

2234

token_week)))

2191

token_week))),

2235

2192

# Define starting values

2236

2193

value = datetime.timedelta() # Value so far

2237

2194

found_token = None

2238

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

2195

followers = frozenset(token_duration,) # Following valid tokens

2239

2196

s = duration # String left to parse

2240

2197

# Loop until end token is found

2241

2198

while found_token is not token_end:

2258

2215

break

2259

2216

else:

2260

2217

# No currently valid tokens were found

2261

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

2262

.format(duration))

2218

raise ValueError("Invalid RFC 3339 duration")

2263

2219

# End token found

2264

2220

return value

2265

2221

2289

2245

timevalue = datetime.timedelta(0)

2290

2246

for s in interval.split():

2291

2247

try:

2292

suffix = s[-1]

2248

suffix = unicode(s[-1])

2293

2249

value = int(s[:-1])

2294

2250

if suffix == "d":

2295

2251

delta = datetime.timedelta(value)

2302

2258

elif suffix == "w":

2303

2259

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

2304

2260

else:

2305

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

2261

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

2262

.format(suffix))

2306

2263

except IndexError as e:

2307

2264

raise ValueError(*(e.args))

2308

2265

timevalue += delta

2325

2282

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

2326

2283

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

2327

2284

raise OSError(errno.ENODEV,

2328

"{} not a character device"

2285

"{0} not a character device"

2329

2286

.format(os.devnull))

2330

2287

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

2331

2288

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

2341

2298

2342

2299

parser = argparse.ArgumentParser()

2343

2300

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

2344

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

2301

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

2345

2302

help="show version number and exit")

2346

2303

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

2347

2304

help="Bind to interface IF")

2397

2354

"port": "",

2398

2355

"debug": "False",

2399

2356

"priority":

2400

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

2401

":+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",

2357

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

2402

2358

"servicename": "Mandos",

2403

2359

"use_dbus": "True",

2404

2360

"use_ipv6": "True",

2408

2364

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

2409

2365

"foreground": "False",

2410

2366

"zeroconf": "True",

2411

}

2367

}

2412

2368

2413

2369

# Parse config file for server-global settings

2414

2370

server_config = configparser.SafeConfigParser(server_defaults)

2415

2371

del server_defaults

2416

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

2372

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

2373

"mandos.conf"))

2417

2374

# Convert the SafeConfigParser object to a dict

2418

2375

server_settings = server_config.defaults()

2419

2376

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

2437

2394

# Override the settings from the config file with command line

2438

2395

# options, if set.

2439

2396

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

2440

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

2441

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

2442

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

2397

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

2398

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

2399

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

2443

2400

value = getattr(options, option)

2444

2401

if value is not None:

2445

2402

server_settings[option] = value

2446

2403

del options

2447

2404

# Force all strings to be unicode

2448

2405

for option in server_settings.keys():

2449

if isinstance(server_settings[option], bytes):

2450

server_settings[option] = (server_settings[option]

2451

.decode("utf-8"))

2406

if type(server_settings[option]) is str:

2407

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

2452

2408

# Force all boolean options to be boolean

2453

2409

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

2454

2410

"foreground", "zeroconf"):

2460

2416

2461

2417

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

2462

2418

2463

if (not server_settings["zeroconf"]

2464

and not (server_settings["port"]

2465

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

2466

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

2419

if (not server_settings["zeroconf"] and

2420

not (server_settings["port"]

2421

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

2422

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

2423

" Zeroconf")

2467

2424

2468

2425

# For convenience

2469

2426

debug = server_settings["debug"]

2485

2442

initlogger(debug, level)

2486

2443

2487

2444

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

2488

syslogger.setFormatter(

2489

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

2490

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

2491

server_settings["servicename"])))

2445

syslogger.setFormatter(logging.Formatter

2446

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

2447

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

2448

.format(server_settings

2449

["servicename"])))

2492

2450

2493

2451

# Parse config file with clients

2494

2452

client_config = configparser.SafeConfigParser(Client

2502

2460

socketfd = None

2503

2461

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

2504

2462

socketfd = server_settings["socket"]

2505

tcp_server = MandosServer(

2506

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

2507

ClientHandler,

2508

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

2509

use_ipv6=use_ipv6,

2510

gnutls_priority=server_settings["priority"],

2511

use_dbus=use_dbus,

2512

socketfd=socketfd)

2463

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

2464

server_settings["port"]),

2465

ClientHandler,

2466

interface=(server_settings["interface"]

2467

or None),

2468

use_ipv6=use_ipv6,

2469

gnutls_priority=

2470

server_settings["priority"],

2471

use_dbus=use_dbus,

2472

socketfd=socketfd)

2513

2473

if not foreground:

2514

2474

pidfilename = "/run/mandos.pid"

2515

2475

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

2516

2476

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

2517

2477

pidfile = None

2518

2478

try:

2519

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

2479

pidfile = open(pidfilename, "w")

2520

2480

except IOError as e:

2521

2481

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

2522

2482

exc_info=e)

2549

2509

def debug_gnutls(level, string):

2550

2510

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

2551

2511

2552

gnutls.library.functions.gnutls_global_set_log_function(

2553

debug_gnutls)

2512

(gnutls.library.functions

2513

.gnutls_global_set_log_function(debug_gnutls))

2554

2514

2555

2515

# Redirect stdin so all checkers get /dev/null

2556

2516

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

2576

2536

if use_dbus:

2577

2537

try:

2578

2538

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

2579

bus,

2580

do_not_queue=True)

2581

old_bus_name = dbus.service.BusName(

2582

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

2583

do_not_queue=True)

2584

except dbus.exceptions.DBusException as e:

2539

bus, do_not_queue=True)

2540

old_bus_name = (dbus.service.BusName

2541

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

2542

do_not_queue=True))

2543

except dbus.exceptions.NameExistsException as e:

2585

2544

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

2586

2545

use_dbus = False

2587

2546

server_settings["use_dbus"] = False

2588

2547

tcp_server.use_dbus = False

2589

2548

if zeroconf:

2590

2549

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2591

service = AvahiServiceToSyslog(

2592

name = server_settings["servicename"],

2593

servicetype = "_mandos._tcp",

2594

protocol = protocol,

2595

bus = bus)

2550

service = AvahiServiceToSyslog(name =

2551

server_settings["servicename"],

2552

servicetype = "_mandos._tcp",

2553

protocol = protocol, bus = bus)

2596

2554

if server_settings["interface"]:

2597

service.interface = if_nametoindex(

2598

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

2555

service.interface = (if_nametoindex

2556

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

2599

2557

2600

2558

global multiprocessing_manager

2601

2559

multiprocessing_manager = multiprocessing.Manager()

2620

2578

if server_settings["restore"]:

2621

2579

try:

2622

2580

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

2623

clients_data, old_client_settings = pickle.load(

2624

stored_state)

2581

clients_data, old_client_settings = (pickle.load

2582

(stored_state))

2625

2583

os.remove(stored_state_path)

2626

2584

except IOError as e:

2627

2585

if e.errno == errno.ENOENT:

2628

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

2629

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

2586

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

2587

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

2630

2588

else:

2631

2589

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

2632

2590

exc_info=e)

2633

2591

raise

2634

2592

except EOFError as e:

2635

2593

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

2636

"EOFError:",

2637

exc_info=e)

2594

"EOFError:", exc_info=e)

2638

2595

2639

2596

with PGPEngine() as pgp:

2640

for client_name, client in clients_data.items():

2597

for client_name, client in clients_data.iteritems():

2641

2598

# Skip removed clients

2642

2599

if client_name not in client_settings:

2643

2600

continue

2652

2609

# For each value in new config, check if it

2653

2610

# differs from the old config value (Except for

2654

2611

# the "secret" attribute)

2655

if (name != "secret"

2656

and (value !=

2657

old_client_settings[client_name][name])):

2612

if (name != "secret" and

2613

value != old_client_settings[client_name]

2614

[name]):

2658

2615

client[name] = value

2659

2616

except KeyError:

2660

2617

pass

2668

2625

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

2669

2626

if not client["last_checked_ok"]:

2670

2627

logger.warning(

2671

"disabling client {} - Client never "

2672

"performed a successful checker".format(

2673

client_name))

2628

"disabling client {0} - Client never "

2629

"performed a successful checker"

2630

.format(client_name))

2674

2631

client["enabled"] = False

2675

2632

elif client["last_checker_status"] != 0:

2676

2633

logger.warning(

2677

"disabling client {} - Client last"

2678

" checker failed with error code"

2679

" {}".format(

2680

client_name,

2681

client["last_checker_status"]))

2634

"disabling client {0} - Client "

2635

"last checker failed with error code {1}"

2636

.format(client_name,

2637

client["last_checker_status"]))

2682

2638

client["enabled"] = False

2683

2639

else:

2684

client["expires"] = (

2685

datetime.datetime.utcnow()

2686

+ client["timeout"])

2640

client["expires"] = (datetime.datetime

2641

.utcnow()

2642

+ client["timeout"])

2687

2643

logger.debug("Last checker succeeded,"

2688

" keeping {} enabled".format(

2689

client_name))

2644

" keeping {0} enabled"

2645

.format(client_name))

2690

2646

try:

2691

client["secret"] = pgp.decrypt(

2692

client["encrypted_secret"],

2693

client_settings[client_name]["secret"])

2647

client["secret"] = (

2648

pgp.decrypt(client["encrypted_secret"],

2649

client_settings[client_name]

2650

["secret"]))

2694

2651

except PGPError:

2695

2652

# If decryption fails, we use secret from new settings

2696

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

2697

client_name))

2698

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

2699

["secret"])

2653

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

2654

.format(client_name))

2655

client["secret"] = (

2656

client_settings[client_name]["secret"])

2700

2657

2701

2658

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

2702

2659

for client_name in (set(old_client_settings)

2707

2664

clients_data[client_name] = client_settings[client_name]

2708

2665

2709

2666

# Create all client objects

2710

for client_name, client in clients_data.items():

2667

for client_name, client in clients_data.iteritems():

2711

2668

tcp_server.clients[client_name] = client_class(

2712

name = client_name,

2713

settings = client,

2669

name = client_name, settings = client,

2714

2670

server_settings = server_settings)

2715

2671

2716

2672

if not tcp_server.clients:

2718

2674

2719

2675

if not foreground:

2720

2676

if pidfile is not None:

2721

pid = os.getpid()

2722

2677

try:

2723

2678

with pidfile:

2724

print(pid, file=pidfile)

2679

pid = os.getpid()

2680

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

2725

2681

except IOError:

2726

2682

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

2727

2683

pidfilename, pid)

2732

2688

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

2733

2689

2734

2690

if use_dbus:

2735

2736

@alternate_dbus_interfaces(

2737

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

2691

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

2692

"se.bsnet.fukt.Mandos"})

2738

2693

class MandosDBusService(DBusObjectWithProperties):

2739

2694

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

2740

2741

2695

def __init__(self):

2742

2696

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

2743

2744

2697

_interface = "se.recompile.Mandos"

2745

2698

2746

2699

@dbus_interface_annotations(_interface)

2747

2700

def _foo(self):

2748

return {

2749

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

2750

"false" }

2701

return { "org.freedesktop.DBus.Property"

2702

".EmitsChangedSignal":

2703

"false"}

2751

2704

2752

2705

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

2753

2706

def ClientAdded(self, objpath):

2767

2720

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

2768

2721

def GetAllClients(self):

2769

2722

"D-Bus method"

2770

return dbus.Array(c.dbus_object_path for c in

2723

return dbus.Array(c.dbus_object_path

2724

for c in

2771

2725

tcp_server.clients.itervalues())

2772

2726

2773

2727

@dbus.service.method(_interface,

2775

2729

def GetAllClientsWithProperties(self):

2776

2730

"D-Bus method"

2777

2731

return dbus.Dictionary(

2778

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

2779

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

2732

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

2733

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

2780

2734

signature="oa{sv}")

2781

2735

2782

2736

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

2820

2774

2821

2775

# A list of attributes that can not be pickled

2822

2776

# + secret.

2823

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

2824

"checker", "server_settings" }

2825

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

2826

.Object):

2777

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

2778

"checker", "server_settings"))

2779

for name, typ in (inspect.getmembers

2780

(dbus.service.Object)):

2827

2781

exclude.add(name)

2828

2782

2829

2783

client_dict["encrypted_secret"] = (client

2836

2790

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

2837

2791

2838

2792

try:

2839

with tempfile.NamedTemporaryFile(

2840

mode='wb',

2841

suffix=".pickle",

2842

prefix='clients-',

2843

dir=os.path.dirname(stored_state_path),

2844

delete=False) as stored_state:

2793

with (tempfile.NamedTemporaryFile

2794

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

2795

dir=os.path.dirname(stored_state_path),

2796

delete=False)) as stored_state:

2845

2797

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

2846

tempname = stored_state.name

2798

tempname=stored_state.name

2847

2799

os.rename(tempname, stored_state_path)

2848

2800

except (IOError, OSError) as e:

2849

2801

if not debug:

2852

2804

except NameError:

2853

2805

pass

2854

2806

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

2855

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

2807

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

2856

2808

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

2857

2809

else:

2858

2810

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

2868

2820

client.disable(quiet=True)

2869

2821

if use_dbus:

2870

2822

# Emit D-Bus signal

2871

mandos_dbus_service.ClientRemoved(

2872

client.dbus_object_path, client.name)

2823

mandos_dbus_service.ClientRemoved(client

2824

.dbus_object_path,

2825

client.name)

2873

2826

client_settings.clear()

2874

2827

2875

2828

atexit.register(cleanup)

2928

2881

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

2929

2882

cleanup()

2930

2883

2931

2932

2884

if __name__ == '__main__':

2933

2885

main()