/mandos/release : revision 237.7.174

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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 = "1.6.1"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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syslogger = None

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syslogger = (logging.handlers.SysLogHandler

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(facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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

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try:

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if_nametoindex = ctypes.cdll.LoadLibrary(

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

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if_nametoindex = (ctypes.cdll.LoadLibrary

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

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.if_nametoindex)

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except (OSError, AttributeError):

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def if_nametoindex(interface):

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

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

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

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ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

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

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

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

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interface))

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

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ifreq[16:20])[0]

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return interface_index

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

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"""init logger and add loglevel"""

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global syslogger

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syslogger = (logging.handlers.SysLogHandler(

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facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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address = "/dev/log"))

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syslogger.setFormatter(logging.Formatter

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

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' %(message)s'))

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class PGPEngine(object):

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

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def __init__(self):

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

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self.gnupgargs = ['--batch',

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def password_encode(self, password):

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# Passphrase can not be empty and can not contain newlines or

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# NUL bytes. So we prefix it and hex encode it.

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encoded = b"mandos" + binascii.hexlify(password)

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if len(encoded) > 2048:

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# GnuPG can't handle long passwords, so encode differently

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encoded = (b"mandos" + password.replace(b"\\", b"\\\\")

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.replace(b"\n", b"\\n")

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.replace(b"\0", b"\\x00"))

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return encoded

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return b"mandos" + binascii.hexlify(password)

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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)

384

bad_states = {

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avahi.SERVER_INVALID: "Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION: "Zeroconf server name collision",

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avahi.SERVER_FAILURE: "Zeroconf server failure",

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}

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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):

419

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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404

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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",

487

}

451

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):

463

"Return the 'timeout' attribute in milliseconds"

464

return timedelta_to_milliseconds(self.timeout)

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def extended_timeout_milliseconds(self):

467

"Return the 'extended_timeout' attribute in milliseconds"

468

return timedelta_to_milliseconds(self.extended_timeout)

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def interval_milliseconds(self):

471

"Return the 'interval' attribute in milliseconds"

472

return timedelta_to_milliseconds(self.interval)

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def approval_delay_milliseconds(self):

475

return timedelta_to_milliseconds(self.approval_delay)

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476

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477

@staticmethod

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478

def config_parser(config):

506

494

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

507

495

"enabled")

508

496

509

# Uppercase and remove spaces from fingerprint for later

510

# comparison purposes with return value from the

511

# fingerprint() function

512

497

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

513

498

.replace(" ", ""))

514

499

if "secret" in section:

519

504

"rb") as secfile:

520

505

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

521

506

else:

522

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

507

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

523

508

.format(section))

524

509

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

525

510

client["extended_timeout"] = string_to_delta(

542

527

server_settings = {}

543

528

self.server_settings = server_settings

544

529

# adding all client settings

545

for setting, value in settings.items():

530

for setting, value in settings.iteritems():

546

531

setattr(self, setting, value)

547

532

548

533

if self.enabled:

556

541

self.expires = None

557

542

558

543

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

544

# Uppercase and remove spaces from fingerprint for later

545

# comparison purposes with return value from the fingerprint()

546

# function

559

547

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

560

548

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

561

549

datetime.datetime.utcnow())

568

556

self.current_checker_command = None

569

557

self.approved = None

570

558

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()

559

self.changedstate = (multiprocessing_manager

560

.Condition(multiprocessing_manager

561

.Lock()))

562

self.client_structure = [attr for attr in

563

self.__dict__.iterkeys()

575

564

if not attr.startswith("_")]

576

565

self.client_structure.append("client_structure")

577

566

578

for name, t in inspect.getmembers(

579

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

567

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

568

lambda obj:

569

isinstance(obj,

570

property)):

580

571

if not name.startswith("_"):

581

572

self.client_structure.append(name)

582

573

624

615

# and every interval from then on.

625

616

if self.checker_initiator_tag is not None:

626

617

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)

618

self.checker_initiator_tag = (gobject.timeout_add

619

(self.interval_milliseconds(),

620

self.start_checker))

630

621

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

631

622

if self.disable_initiator_tag is not None:

632

623

gobject.source_remove(self.disable_initiator_tag)

633

self.disable_initiator_tag = gobject.timeout_add(

634

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

624

self.disable_initiator_tag = (gobject.timeout_add

625

(self.timeout_milliseconds(),

626

self.disable))

635

627

# Also start a new checker *right now*.

636

628

self.start_checker()

637

629

646

638

vars(self))

647

639

self.checked_ok()

648

640

else:

649

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

641

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

642

vars(self))

650

643

else:

651

644

self.last_checker_status = -1

652

645

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

666

659

gobject.source_remove(self.disable_initiator_tag)

667

660

self.disable_initiator_tag = None

668

661

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

669

self.disable_initiator_tag = gobject.timeout_add(

670

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

662

self.disable_initiator_tag = (gobject.timeout_add

663

(timedelta_to_milliseconds

664

(timeout), self.disable))

671

665

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

672

666

673

667

def need_approval(self):

690

684

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

691

685

try:

692

686

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

693

except AttributeError:

694

pass

695

except OSError as error:

696

if error.errno != errno.ECHILD:

697

raise

687

except (AttributeError, OSError) as error:

688

if (isinstance(error, OSError)

689

and error.errno != errno.ECHILD):

690

raise error

698

691

else:

699

692

if pid:

700

693

logger.warning("Checker was a zombie")

704

697

# Start a new checker if needed

705

698

if self.checker is None:

706

699

# Escape attributes for the shell

707

escaped_attrs = {

708

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

709

for attr in self.runtime_expansions }

700

escaped_attrs = dict(

701

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

702

for attr in

703

self.runtime_expansions)

710

704

try:

711

705

command = self.checker_command % escaped_attrs

712

706

except TypeError as error:

713

707

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

714

self.checker_command,

715

exc_info=error)

716

return True # Try again later

708

self.checker_command, exc_info=error)

709

return True # Try again later

717

710

self.current_checker_command = command

718

711

try:

719

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

720

self.name)

712

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

713

command, self.name)

721

714

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

722

715

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

723

716

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

732

725

"stderr": wnull })

733

726

self.checker = subprocess.Popen(command,

734

727

close_fds=True,

735

shell=True,

736

cwd="/",

728

shell=True, cwd="/",

737

729

**popen_args)

738

730

except OSError as error:

739

731

logger.error("Failed to start subprocess",

740

732

exc_info=error)

741

733

return True

742

self.checker_callback_tag = gobject.child_watch_add(

743

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

734

self.checker_callback_tag = (gobject.child_watch_add

735

(self.checker.pid,

736

self.checker_callback,

737

data=command))

744

738

# The checker may have completed before the gobject

745

739

# watch was added. Check for this.

746

740

try:

777

771

self.checker = None

778

772

779

773

780

def dbus_service_property(dbus_interface,

781

signature="v",

782

access="readwrite",

783

byte_arrays=False):

774

def dbus_service_property(dbus_interface, signature="v",

775

access="readwrite", byte_arrays=False):

784

776

"""Decorators for marking methods of a DBusObjectWithProperties to

785

777

become properties on the D-Bus.

786

778

795

787

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

796

788

if byte_arrays and signature != "ay":

797

789

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

798

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

799

790

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

800

791

def decorator(func):

801

792

func._dbus_is_property = True

802

793

func._dbus_interface = dbus_interface

807

798

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

808

799

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

809

800

return func

810

811

801

return decorator

812

802

813

803

822

812

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

823

813

"false"}

824

814

"""

825

826

815

def decorator(func):

827

816

func._dbus_is_interface = True

828

817

func._dbus_interface = dbus_interface

829

818

func._dbus_name = dbus_interface

830

819

return func

831

832

820

return decorator

833

821

834

822

836

824

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

837

825

Usage:

838

826

839

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

840

"org.freedesktop.DBus.Property."

841

"EmitsChangedSignal": "false"})

842

827

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

843

828

access="r")

829

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

830

"org.freedesktop.DBus.Property."

831

"EmitsChangedSignal": "false"})

844

832

def Property_dbus_property(self):

845

833

return dbus.Boolean(False)

846

834

"""

847

848

835

def decorator(func):

849

836

func._dbus_annotations = annotations

850

837

return func

851

852

838

return decorator

853

839

854

840

855

841

class DBusPropertyException(dbus.exceptions.DBusException):

856

842

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

857

843

"""

858

pass

844

def __unicode__(self):

845

return unicode(str(self))

859

846

860

847

861

848

class DBusPropertyAccessException(DBusPropertyException):

885

872

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

886

873

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

887

874

"""

888

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

875

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

889

876

False)

890

877

891

878

def _get_all_dbus_things(self, thing):

892

879

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

893

880

"""

894

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

881

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

882

name),

895

883

athing.__get__(self))

896

884

for cls in self.__class__.__mro__

897

885

for name, athing in

898

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

886

inspect.getmembers(cls,

887

self._is_dbus_thing(thing)))

899

888

900

889

def _get_dbus_property(self, interface_name, property_name):

901

890

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

902

891

property with the specified name and interface.

903

892

"""

904

for cls in self.__class__.__mro__:

905

for name, value in inspect.getmembers(

906

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

893

for cls in self.__class__.__mro__:

894

for name, value in (inspect.getmembers

895

(cls,

896

self._is_dbus_thing("property"))):

907

897

if (value._dbus_name == property_name

908

898

and value._dbus_interface == interface_name):

909

899

return value.__get__(self)

910

900

911

901

# No such property

912

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

913

self.dbus_object_path, interface_name, property_name))

902

raise DBusPropertyNotFound(self.dbus_object_path + ":"

903

+ interface_name + "."

904

+ property_name)

914

905

915

@dbus.service.method(dbus.PROPERTIES_IFACE,

916

in_signature="ss",

906

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

917

907

out_signature="v")

918

908

def Get(self, interface_name, property_name):

919

909

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

937

927

# The byte_arrays option is not supported yet on

938

928

# signatures other than "ay".

939

929

if prop._dbus_signature != "ay":

940

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

941

"'ay' signature {!r}"

942

.format(prop._dbus_signature))

930

raise ValueError

943

931

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

944

932

for byte in value))

945

933

prop(value)

946

934

947

@dbus.service.method(dbus.PROPERTIES_IFACE,

948

in_signature="s",

935

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

949

936

out_signature="a{sv}")

950

937

def GetAll(self, interface_name):

951

938

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

966

953

if not hasattr(value, "variant_level"):

967

954

properties[name] = value

968

955

continue

969

properties[name] = type(value)(

970

value, variant_level = value.variant_level + 1)

956

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

957

value.variant_level+1)

971

958

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

972

959

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

960

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

982

961

out_signature="s",

983

962

path_keyword='object_path',

991

970

connection)

992

971

try:

993

972

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

994

995

973

def make_tag(document, name, prop):

996

974

e = document.createElement("property")

997

975

e.setAttribute("name", name)

998

976

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

999

977

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

1000

978

return e

1001

1002

979

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

1003

980

# Add property tags

1004

981

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

1016

993

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

1017

994

and prop._dbus_interface

1018

995

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

1019

annots.update(getattr(

1020

prop, "_dbus_annotations", {}))

1021

for name, value in annots.items():

996

annots.update(getattr

997

(prop,

998

"_dbus_annotations",

999

{}))

1000

for name, value in annots.iteritems():

1022

1001

ann_tag = document.createElement(

1023

1002

"annotation")

1024

1003

ann_tag.setAttribute("name", name)

1027

1006

# Add interface annotation tags

1028

1007

for annotation, value in dict(

1029

1008

itertools.chain.from_iterable(

1030

annotations().items()

1031

for name, annotations

1032

in self._get_all_dbus_things("interface")

1009

annotations().iteritems()

1010

for name, annotations in

1011

self._get_all_dbus_things("interface")

1033

1012

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

1034

)).items():

1013

)).iteritems():

1035

1014

ann_tag = document.createElement("annotation")

1036

1015

ann_tag.setAttribute("name", annotation)

1037

1016

ann_tag.setAttribute("value", value)

1064

1043

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

1065

1044

if dt is None:

1066

1045

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

1067

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

1046

return dbus.String(dt.isoformat(),

1047

variant_level=variant_level)

1068

1048

1069

1049

1070

1050

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1090

1070

(from DBusObjectWithProperties) and interfaces (from the

1091

1071

dbus_interface_annotations decorator).

1092

1072

"""

1093

1094

1073

def wrapper(cls):

1095

1074

for orig_interface_name, alt_interface_name in (

1096

alt_interface_names.items()):

1075

alt_interface_names.iteritems()):

1097

1076

attr = {}

1098

1077

interface_names = set()

1099

1078

# Go though all attributes of the class

1101

1080

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

1102

1081

# with the wrong interface name

1103

1082

if (not hasattr(attribute, "_dbus_interface")

1104

or not attribute._dbus_interface.startswith(

1105

orig_interface_name)):

1083

or not attribute._dbus_interface

1084

.startswith(orig_interface_name)):

1106

1085

continue

1107

1086

# Create an alternate D-Bus interface name based on

1108

1087

# the current name

1109

alt_interface = attribute._dbus_interface.replace(

1110

orig_interface_name, alt_interface_name)

1088

alt_interface = (attribute._dbus_interface

1089

.replace(orig_interface_name,

1090

alt_interface_name))

1111

1091

interface_names.add(alt_interface)

1112

1092

# Is this a D-Bus signal?

1113

1093

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

1114

1094

# Extract the original non-method undecorated

1115

1095

# function by black magic

1116

1096

nonmethod_func = (dict(

1117

zip(attribute.func_code.co_freevars,

1118

attribute.__closure__))

1119

["func"].cell_contents)

1097

zip(attribute.func_code.co_freevars,

1098

attribute.__closure__))["func"]

1099

.cell_contents)

1120

1100

# Create a new, but exactly alike, function

1121

1101

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

1122

1102

# with the alternate D-Bus interface name

1123

new_function = (dbus.service.signal(

1124

alt_interface, attribute._dbus_signature)

1103

new_function = (dbus.service.signal

1104

(alt_interface,

1105

attribute._dbus_signature)

1125

1106

(types.FunctionType(

1126

nonmethod_func.func_code,

1127

nonmethod_func.func_globals,

1128

nonmethod_func.func_name,

1129

nonmethod_func.func_defaults,

1130

nonmethod_func.func_closure)))

1107

nonmethod_func.func_code,

1108

nonmethod_func.func_globals,

1109

nonmethod_func.func_name,

1110

nonmethod_func.func_defaults,

1111

nonmethod_func.func_closure)))

1131

1112

# Copy annotations, if any

1132

1113

try:

1133

new_function._dbus_annotations = dict(

1134

attribute._dbus_annotations)

1114

new_function._dbus_annotations = (

1115

dict(attribute._dbus_annotations))

1135

1116

except AttributeError:

1136

1117

pass

1137

1118

# Define a creator of a function to call both the

1142

1123

"""This function is a scope container to pass

1143

1124

func1 and func2 to the "call_both" function

1144

1125

outside of its arguments"""

1145

1146

1126

def call_both(*args, **kwargs):

1147

1127

"""This function will emit two D-Bus

1148

1128

signals by calling func1 and func2"""

1149

1129

func1(*args, **kwargs)

1150

1130

func2(*args, **kwargs)

1151

1152

1131

return call_both

1153

1132

# Create the "call_both" function and add it to

1154

1133

# the class

1159

1138

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

1160

1139

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

1161

1140

# to the class.

1162

attr[attrname] = (

1163

dbus.service.method(

1164

alt_interface,

1165

attribute._dbus_in_signature,

1166

attribute._dbus_out_signature)

1167

(types.FunctionType(attribute.func_code,

1168

attribute.func_globals,

1169

attribute.func_name,

1170

attribute.func_defaults,

1171

attribute.func_closure)))

1141

attr[attrname] = (dbus.service.method

1142

(alt_interface,

1143

attribute._dbus_in_signature,

1144

attribute._dbus_out_signature)

1145

(types.FunctionType

1146

(attribute.func_code,

1147

attribute.func_globals,

1148

attribute.func_name,

1149

attribute.func_defaults,

1150

attribute.func_closure)))

1172

1151

# Copy annotations, if any

1173

1152

try:

1174

attr[attrname]._dbus_annotations = dict(

1175

attribute._dbus_annotations)

1153

attr[attrname]._dbus_annotations = (

1154

dict(attribute._dbus_annotations))

1176

1155

except AttributeError:

1177

1156

pass

1178

1157

# Is this a D-Bus property?

1181

1160

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

1182

1161

# property with the alternate D-Bus interface

1183

1162

# name. Add it to the class.

1184

attr[attrname] = (dbus_service_property(

1185

alt_interface, attribute._dbus_signature,

1186

attribute._dbus_access,

1187

attribute._dbus_get_args_options

1188

["byte_arrays"])

1189

(types.FunctionType(

1190

attribute.func_code,

1191

attribute.func_globals,

1192

attribute.func_name,

1193

attribute.func_defaults,

1194

attribute.func_closure)))

1163

attr[attrname] = (dbus_service_property

1164

(alt_interface,

1165

attribute._dbus_signature,

1166

attribute._dbus_access,

1167

attribute

1168

._dbus_get_args_options

1169

["byte_arrays"])

1170

(types.FunctionType

1171

(attribute.func_code,

1172

attribute.func_globals,

1173

attribute.func_name,

1174

attribute.func_defaults,

1175

attribute.func_closure)))

1195

1176

# Copy annotations, if any

1196

1177

try:

1197

attr[attrname]._dbus_annotations = dict(

1198

attribute._dbus_annotations)

1178

attr[attrname]._dbus_annotations = (

1179

dict(attribute._dbus_annotations))

1199

1180

except AttributeError:

1200

1181

pass

1201

1182

# Is this a D-Bus interface?

1204

1185

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

1205

1186

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

1206

1187

# to the class.

1207

attr[attrname] = (

1208

dbus_interface_annotations(alt_interface)

1209

(types.FunctionType(attribute.func_code,

1210

attribute.func_globals,

1211

attribute.func_name,

1212

attribute.func_defaults,

1213

attribute.func_closure)))

1188

attr[attrname] = (dbus_interface_annotations

1189

(alt_interface)

1190

(types.FunctionType

1191

(attribute.func_code,

1192

attribute.func_globals,

1193

attribute.func_name,

1194

attribute.func_defaults,

1195

attribute.func_closure)))

1214

1196

if deprecate:

1215

1197

# Deprecate all alternate interfaces

1216

iname="_AlternateDBusNames_interface_annotation{}"

1198

iname="_AlternateDBusNames_interface_annotation{0}"

1217

1199

for interface_name in interface_names:

1218

1219

1200

@dbus_interface_annotations(interface_name)

1220

1201

def func(self):

1221

1202

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

1222

"true" }

1203

"true" }

1223

1204

# Find an unused name

1224

1205

for aname in (iname.format(i)

1225

1206

for i in itertools.count()):

1229

1210

if interface_names:

1230

1211

# Replace the class with a new subclass of it with

1231

1212

# methods, signals, etc. as created above.

1232

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

1233

(cls, ), attr)

1213

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

1214

(cls,), attr)

1234

1215

return cls

1235

1236

1216

return wrapper

1237

1217

1238

1218

1239

1219

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

1240

"se.bsnet.fukt.Mandos"})

1220

"se.bsnet.fukt.Mandos"})

1241

1221

class ClientDBus(Client, DBusObjectWithProperties):

1242

1222

"""A Client class using D-Bus

1243

1223

1247

1227

"""

1248

1228

1249

1229

runtime_expansions = (Client.runtime_expansions

1250

+ ("dbus_object_path", ))

1251

1252

_interface = "se.recompile.Mandos.Client"

1230

+ ("dbus_object_path",))

1253

1231

1254

1232

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

1255

1233

1258

1236

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

1259

1237

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

1260

1238

# the D-Bus

1261

client_object_name = str(self.name).translate(

1239

client_object_name = unicode(self.name).translate(

1262

1240

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

1263

1241

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

1264

self.dbus_object_path = dbus.ObjectPath(

1265

"/clients/" + client_object_name)

1242

self.dbus_object_path = (dbus.ObjectPath

1243

("/clients/" + client_object_name))

1266

1244

DBusObjectWithProperties.__init__(self, self.bus,

1267

1245

self.dbus_object_path)

1268

1246

1269

def notifychangeproperty(transform_func, dbus_name,

1270

type_func=lambda x: x,

1271

variant_level=1,

1272

invalidate_only=False,

1273

_interface=_interface):

1247

def notifychangeproperty(transform_func,

1248

dbus_name, type_func=lambda x: x,

1249

variant_level=1):

1274

1250

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

1275

1251

its changes to DBus.

1276

1252

1281

1257

to the D-Bus. Default: no transform

1282

1258

variant_level: D-Bus variant level. Default: 1

1283

1259

"""

1284

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

1285

1260

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

1286

1261

def setter(self, value):

1287

1262

if hasattr(self, "dbus_object_path"):

1288

1263

if (not hasattr(self, attrname) or

1289

1264

type_func(getattr(self, attrname, None))

1290

1265

!= type_func(value)):

1291

if invalidate_only:

1292

self.PropertiesChanged(

1293

_interface, dbus.Dictionary(),

1294

dbus.Array((dbus_name, )))

1295

else:

1296

dbus_value = transform_func(

1297

type_func(value),

1298

variant_level = variant_level)

1299

self.PropertyChanged(dbus.String(dbus_name),

1300

dbus_value)

1301

self.PropertiesChanged(

1302

_interface,

1303

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

1304

dbus_value }),

1305

dbus.Array())

1266

dbus_value = transform_func(type_func(value),

1267

variant_level

1268

=variant_level)

1269

self.PropertyChanged(dbus.String(dbus_name),

1270

dbus_value)

1306

1271

setattr(self, attrname, value)

1307

1272

1308

1273

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

1314

1279

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

1315

1280

last_enabled = notifychangeproperty(datetime_to_dbus,

1316

1281

"LastEnabled")

1317

checker = notifychangeproperty(

1318

dbus.Boolean, "CheckerRunning",

1319

type_func = lambda checker: checker is not None)

1282

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

1283

type_func = lambda checker:

1284

checker is not None)

1320

1285

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1321

1286

"LastCheckedOK")

1322

1287

last_checker_status = notifychangeproperty(dbus.Int16,

1325

1290

datetime_to_dbus, "LastApprovalRequest")

1326

1291

approved_by_default = notifychangeproperty(dbus.Boolean,

1327

1292

"ApprovedByDefault")

1328

approval_delay = notifychangeproperty(

1329

dbus.UInt64, "ApprovalDelay",

1330

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

1293

approval_delay = notifychangeproperty(dbus.UInt64,

1294

"ApprovalDelay",

1295

type_func =

1296

timedelta_to_milliseconds)

1331

1297

approval_duration = notifychangeproperty(

1332

1298

dbus.UInt64, "ApprovalDuration",

1333

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

1299

type_func = timedelta_to_milliseconds)

1334

1300

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

1335

timeout = notifychangeproperty(

1336

dbus.UInt64, "Timeout",

1337

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

1301

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

1302

type_func =

1303

timedelta_to_milliseconds)

1338

1304

extended_timeout = notifychangeproperty(

1339

1305

dbus.UInt64, "ExtendedTimeout",

1340

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

1341

interval = notifychangeproperty(

1342

dbus.UInt64, "Interval",

1343

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

1306

type_func = timedelta_to_milliseconds)

1307

interval = notifychangeproperty(dbus.UInt64,

1308

"Interval",

1309

type_func =

1310

timedelta_to_milliseconds)

1344

1311

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

1345

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

1346

invalidate_only=True)

1347

1312

1348

1313

del notifychangeproperty

1349

1314

1376

1341

*args, **kwargs)

1377

1342

1378

1343

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

1379

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

1344

old_checker = self.checker

1345

if self.checker is not None:

1346

old_checker_pid = self.checker.pid

1347

else:

1348

old_checker_pid = None

1380

1349

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

1381

1350

# Only if new checker process was started

1382

1351

if (self.checker is not None

1391

1360

1392

1361

def approve(self, value=True):

1393

1362

self.approved = value

1394

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

1395

* 1000), self._reset_approved)

1363

gobject.timeout_add(timedelta_to_milliseconds

1364

(self.approval_duration),

1365

self._reset_approved)

1396

1366

self.send_changedstate()

1397

1367

1398

1368

## D-Bus methods, signals & properties

1369

_interface = "se.recompile.Mandos.Client"

1399

1370

1400

1371

## Interfaces

1401

1372

1373

@dbus_interface_annotations(_interface)

1374

def _foo(self):

1375

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

1376

"false"}

1377

1402

1378

## Signals

1403

1379

1404

1380

# CheckerCompleted - signal

1414

1390

pass

1415

1391

1416

1392

# PropertyChanged - signal

1417

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

1418

1393

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

1419

1394

def PropertyChanged(self, property, value):

1420

1395

"D-Bus signal"

1484

1459

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

1485

1460

1486

1461

# ApprovedByDefault - property

1487

@dbus_service_property(_interface,

1488

signature="b",

1462

@dbus_service_property(_interface, signature="b",

1489

1463

access="readwrite")

1490

1464

def ApprovedByDefault_dbus_property(self, value=None):

1491

1465

if value is None: # get

1493

1467

self.approved_by_default = bool(value)

1494

1468

1495

1469

# ApprovalDelay - property

1496

@dbus_service_property(_interface,

1497

signature="t",

1470

@dbus_service_property(_interface, signature="t",

1498

1471

access="readwrite")

1499

1472

def ApprovalDelay_dbus_property(self, value=None):

1500

1473

if value is None: # get

1501

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

1502

* 1000)

1474

return dbus.UInt64(self.approval_delay_milliseconds())

1503

1475

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

1504

1476

1505

1477

# ApprovalDuration - property

1506

@dbus_service_property(_interface,

1507

signature="t",

1478

@dbus_service_property(_interface, signature="t",

1508

1479

access="readwrite")

1509

1480

def ApprovalDuration_dbus_property(self, value=None):

1510

1481

if value is None: # get

1511

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

1512

* 1000)

1482

return dbus.UInt64(timedelta_to_milliseconds(

1483

self.approval_duration))

1513

1484

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

1514

1485

1515

1486

# Name - property

1523

1494

return dbus.String(self.fingerprint)

1524

1495

1525

1496

# Host - property

1526

@dbus_service_property(_interface,

1527

signature="s",

1497

@dbus_service_property(_interface, signature="s",

1528

1498

access="readwrite")

1529

1499

def Host_dbus_property(self, value=None):

1530

1500

if value is None: # get

1531

1501

return dbus.String(self.host)

1532

self.host = str(value)

1502

self.host = unicode(value)

1533

1503

1534

1504

# Created - property

1535

1505

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

1542

1512

return datetime_to_dbus(self.last_enabled)

1543

1513

1544

1514

# Enabled - property

1545

@dbus_service_property(_interface,

1546

signature="b",

1515

@dbus_service_property(_interface, signature="b",

1547

1516

access="readwrite")

1548

1517

def Enabled_dbus_property(self, value=None):

1549

1518

if value is None: # get

1554

1523

self.disable()

1555

1524

1556

1525

# LastCheckedOK - property

1557

@dbus_service_property(_interface,

1558

signature="s",

1526

@dbus_service_property(_interface, signature="s",

1559

1527

access="readwrite")

1560

1528

def LastCheckedOK_dbus_property(self, value=None):

1561

1529

if value is not None:

1564

1532

return datetime_to_dbus(self.last_checked_ok)

1565

1533

1566

1534

# LastCheckerStatus - property

1567

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

1535

@dbus_service_property(_interface, signature="n",

1536

access="read")

1568

1537

def LastCheckerStatus_dbus_property(self):

1569

1538

return dbus.Int16(self.last_checker_status)

1570

1539

1579

1548

return datetime_to_dbus(self.last_approval_request)

1580

1549

1581

1550

# Timeout - property

1582

@dbus_service_property(_interface,

1583

signature="t",

1551

@dbus_service_property(_interface, signature="t",

1584

1552

access="readwrite")

1585

1553

def Timeout_dbus_property(self, value=None):

1586

1554

if value is None: # get

1587

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

1555

return dbus.UInt64(self.timeout_milliseconds())

1588

1556

old_timeout = self.timeout

1589

1557

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

1590

1558

# Reschedule disabling

1599

1567

is None):

1600

1568

return

1601

1569

gobject.source_remove(self.disable_initiator_tag)

1602

self.disable_initiator_tag = gobject.timeout_add(

1603

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

1604

self.disable)

1570

self.disable_initiator_tag = (

1571

gobject.timeout_add(

1572

timedelta_to_milliseconds(self.expires - now),

1573

self.disable))

1605

1574

1606

1575

# ExtendedTimeout - property

1607

@dbus_service_property(_interface,

1608

signature="t",

1576

@dbus_service_property(_interface, signature="t",

1609

1577

access="readwrite")

1610

1578

def ExtendedTimeout_dbus_property(self, value=None):

1611

1579

if value is None: # get

1612

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

1613

* 1000)

1580

return dbus.UInt64(self.extended_timeout_milliseconds())

1614

1581

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

1615

1582

1616

1583

# Interval - property

1617

@dbus_service_property(_interface,

1618

signature="t",

1584

@dbus_service_property(_interface, signature="t",

1619

1585

access="readwrite")

1620

1586

def Interval_dbus_property(self, value=None):

1621

1587

if value is None: # get

1622

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

1588

return dbus.UInt64(self.interval_milliseconds())

1623

1589

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

1624

1590

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

1625

1591

return

1626

1592

if self.enabled:

1627

1593

# Reschedule checker run

1628

1594

gobject.source_remove(self.checker_initiator_tag)

1629

self.checker_initiator_tag = gobject.timeout_add(

1630

value, self.start_checker)

1631

self.start_checker() # Start one now, too

1595

self.checker_initiator_tag = (gobject.timeout_add

1596

(value, self.start_checker))

1597

self.start_checker() # Start one now, too

1632

1598

1633

1599

# Checker - property

1634

@dbus_service_property(_interface,

1635

signature="s",

1600

@dbus_service_property(_interface, signature="s",

1636

1601

access="readwrite")

1637

1602

def Checker_dbus_property(self, value=None):

1638

1603

if value is None: # get

1639

1604

return dbus.String(self.checker_command)

1640

self.checker_command = str(value)

1605

self.checker_command = unicode(value)

1641

1606

1642

1607

# CheckerRunning - property

1643

@dbus_service_property(_interface,

1644

signature="b",

1608

@dbus_service_property(_interface, signature="b",

1645

1609

access="readwrite")

1646

1610

def CheckerRunning_dbus_property(self, value=None):

1647

1611

if value is None: # get

1657

1621

return self.dbus_object_path # is already a dbus.ObjectPath

1658

1622

1659

1623

# Secret = property

1660

@dbus_service_property(_interface,

1661

signature="ay",

1662

access="write",

1663

byte_arrays=True)

1624

@dbus_service_property(_interface, signature="ay",

1625

access="write", byte_arrays=True)

1664

1626

def Secret_dbus_property(self, value):

1665

self.secret = bytes(value)

1627

self.secret = str(value)

1666

1628

1667

1629

del _interface

1668

1630

1682

1644

if data[0] == 'data':

1683

1645

return data[1]

1684

1646

if data[0] == 'function':

1685

1686

1647

def func(*args, **kwargs):

1687

1648

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

1688

1649

return self._pipe.recv()[1]

1689

1690

1650

return func

1691

1651

1692

1652

def __setattr__(self, name, value):

1704

1664

def handle(self):

1705

1665

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

1706

1666

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

1707

str(self.client_address))

1667

unicode(self.client_address))

1708

1668

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

1709

1669

self.server.child_pipe.fileno())

1710

1670

1711

session = gnutls.connection.ClientSession(

1712

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

1671

session = (gnutls.connection

1672

.ClientSession(self.request,

1673

gnutls.connection

1674

.X509Credentials()))

1713

1675

1714

1676

# Note: gnutls.connection.X509Credentials is really a

1715

1677

# generic GnuTLS certificate credentials object so long as

1724

1686

priority = self.server.gnutls_priority

1725

1687

if priority is None:

1726

1688

priority = "NORMAL"

1727

gnutls.library.functions.gnutls_priority_set_direct(

1728

session._c_object, priority, None)

1689

(gnutls.library.functions

1690

.gnutls_priority_set_direct(session._c_object,

1691

priority, None))

1729

1692

1730

1693

# Start communication using the Mandos protocol

1731

1694

# Get protocol number

1733

1696

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

1734

1697

try:

1735

1698

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

1736

raise RuntimeError(line)

1699

raise RuntimeError

1737

1700

except (ValueError, IndexError, RuntimeError) as error:

1738

1701

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

1739

1702

return

1751

1714

approval_required = False

1752

1715

try:

1753

1716

try:

1754

fpr = self.fingerprint(

1755

self.peer_certificate(session))

1717

fpr = self.fingerprint(self.peer_certificate

1718

(session))

1756

1719

except (TypeError,

1757

1720

gnutls.errors.GNUTLSError) as error:

1758

1721

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

1773

1736

while True:

1774

1737

if not client.enabled:

1775

1738

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

1776

client.name)

1739

client.name)

1777

1740

if self.server.use_dbus:

1778

1741

# Emit D-Bus signal

1779

1742

client.Rejected("Disabled")

1788

1751

if self.server.use_dbus:

1789

1752

# Emit D-Bus signal

1790

1753

client.NeedApproval(

1791

client.approval_delay.total_seconds()

1792

* 1000, client.approved_by_default)

1754

client.approval_delay_milliseconds(),

1755

client.approved_by_default)

1793

1756

else:

1794

1757

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

1795

1758

client.name)

1801

1764

#wait until timeout or approved

1802

1765

time = datetime.datetime.now()

1803

1766

client.changedstate.acquire()

1804

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

1767

client.changedstate.wait(

1768

float(timedelta_to_milliseconds(delay)

1769

/ 1000))

1805

1770

client.changedstate.release()

1806

1771

time2 = datetime.datetime.now()

1807

1772

if (time2 - time) >= delay:

1826

1791

logger.warning("gnutls send failed",

1827

1792

exc_info=error)

1828

1793

return

1829

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

1830

len(client.secret) - (sent_size

1831

+ sent))

1794

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

1795

sent, len(client.secret)

1796

- (sent_size + sent))

1832

1797

sent_size += sent

1833

1798

1834

1799

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

1851

1816

def peer_certificate(session):

1852

1817

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

1853

1818

# If not an OpenPGP certificate...

1854

if (gnutls.library.functions.gnutls_certificate_type_get(

1855

session._c_object)

1819

if (gnutls.library.functions

1820

.gnutls_certificate_type_get(session._c_object)

1856

1821

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1857

1822

# ...do the normal thing

1858

1823

return session.peer_certificate

1872

1837

def fingerprint(openpgp):

1873

1838

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

1874

1839

# New GnuTLS "datum" with the OpenPGP public key

1875

datum = gnutls.library.types.gnutls_datum_t(

1876

ctypes.cast(ctypes.c_char_p(openpgp),

1877

ctypes.POINTER(ctypes.c_ubyte)),

1878

ctypes.c_uint(len(openpgp)))

1840

datum = (gnutls.library.types

1841

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

1842

ctypes.POINTER

1843

(ctypes.c_ubyte)),

1844

ctypes.c_uint(len(openpgp))))

1879

1845

# New empty GnuTLS certificate

1880

1846

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1881

gnutls.library.functions.gnutls_openpgp_crt_init(

1882

ctypes.byref(crt))

1847

(gnutls.library.functions

1848

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

1883

1849

# Import the OpenPGP public key into the certificate

1884

gnutls.library.functions.gnutls_openpgp_crt_import(

1885

crt, ctypes.byref(datum),

1886

gnutls.library.constants.GNUTLS_OPENPGP_FMT_RAW)

1850

(gnutls.library.functions

1851

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

1852

gnutls.library.constants

1853

.GNUTLS_OPENPGP_FMT_RAW))

1887

1854

# Verify the self signature in the key

1888

1855

crtverify = ctypes.c_uint()

1889

gnutls.library.functions.gnutls_openpgp_crt_verify_self(

1890

crt, 0, ctypes.byref(crtverify))

1856

(gnutls.library.functions

1857

.gnutls_openpgp_crt_verify_self(crt, 0,

1858

ctypes.byref(crtverify)))

1891

1859

if crtverify.value != 0:

1892

1860

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1893

raise gnutls.errors.CertificateSecurityError(

1894

"Verify failed")

1861

raise (gnutls.errors.CertificateSecurityError

1862

("Verify failed"))

1895

1863

# New buffer for the fingerprint

1896

1864

buf = ctypes.create_string_buffer(20)

1897

1865

buf_len = ctypes.c_size_t()

1898

1866

# Get the fingerprint from the certificate into the buffer

1899

gnutls.library.functions.gnutls_openpgp_crt_get_fingerprint(

1900

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

1867

(gnutls.library.functions

1868

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

1869

ctypes.byref(buf_len)))

1901

1870

# Deinit the certificate

1902

1871

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1903

1872

# Convert the buffer to a Python bytestring

1909

1878

1910

1879

class MultiprocessingMixIn(object):

1911

1880

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

1912

1913

1881

def sub_process_main(self, request, address):

1914

1882

try:

1915

1883

self.finish_request(request, address)

1927

1895

1928

1896

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1929

1897

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

1930

1931

1898

def process_request(self, request, client_address):

1932

1899

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

1933

1900

1942

1909

1943

1910

def add_pipe(self, parent_pipe, proc):

1944

1911

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

1945

raise NotImplementedError()

1912

raise NotImplementedError

1946

1913

1947

1914

1948

1915

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

1954

1921

interface: None or a network interface name (string)

1955

1922

use_ipv6: Boolean; to use IPv6 or not

1956

1923

"""

1957

1958

1924

def __init__(self, server_address, RequestHandlerClass,

1959

interface=None,

1960

use_ipv6=True,

1961

socketfd=None):

1925

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

1962

1926

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

1963

1927

creating a new one with socket.socket().

1964

1928

"""

2005

1969

self.interface)

2006

1970

else:

2007

1971

try:

2008

self.socket.setsockopt(

2009

socket.SOL_SOCKET, SO_BINDTODEVICE,

2010

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

1972

self.socket.setsockopt(socket.SOL_SOCKET,

1973

SO_BINDTODEVICE,

1974

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

2011

1975

except socket.error as error:

2012

1976

if error.errno == errno.EPERM:

2013

1977

logger.error("No permission to bind to"

2031

1995

self.server_address = (any_address,

2032

1996

self.server_address[1])

2033

1997

elif not self.server_address[1]:

2034

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

1998

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

1999

0)

2035

2000

# if self.interface:

2036

2001

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

2037

2002

# 0, # port

2051

2016

2052

2017

Assumes a gobject.MainLoop event loop.

2053

2018

"""

2054

2055

2019

def __init__(self, server_address, RequestHandlerClass,

2056

interface=None,

2057

use_ipv6=True,

2058

clients=None,

2059

gnutls_priority=None,

2060

use_dbus=True,

2061

socketfd=None):

2020

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

2021

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

2062

2022

self.enabled = False

2063

2023

self.clients = clients

2064

2024

if self.clients is None:

2070

2030

interface = interface,

2071

2031

use_ipv6 = use_ipv6,

2072

2032

socketfd = socketfd)

2073

2074

2033

def server_activate(self):

2075

2034

if self.enabled:

2076

2035

return socketserver.TCPServer.server_activate(self)

2080

2039

2081

2040

def add_pipe(self, parent_pipe, proc):

2082

2041

# Call "handle_ipc" for both data and EOF events

2083

gobject.io_add_watch(

2084

parent_pipe.fileno(),

2085

gobject.IO_IN | gobject.IO_HUP,

2086

functools.partial(self.handle_ipc,

2087

parent_pipe = parent_pipe,

2088

proc = proc))

2042

gobject.io_add_watch(parent_pipe.fileno(),

2043

gobject.IO_IN | gobject.IO_HUP,

2044

functools.partial(self.handle_ipc,

2045

parent_pipe =

2046

parent_pipe,

2047

proc = proc))

2089

2048

2090

def handle_ipc(self, source, condition,

2091

parent_pipe=None,

2092

proc = None,

2093

client_object=None):

2049

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

2050

proc = None, client_object=None):

2094

2051

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

2095

2052

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

2096

2053

# Wait for other process to exit

2119

2076

parent_pipe.send(False)

2120

2077

return False

2121

2078

2122

gobject.io_add_watch(

2123

parent_pipe.fileno(),

2124

gobject.IO_IN | gobject.IO_HUP,

2125

functools.partial(self.handle_ipc,

2126

parent_pipe = parent_pipe,

2127

proc = proc,

2128

client_object = client))

2079

gobject.io_add_watch(parent_pipe.fileno(),

2080

gobject.IO_IN | gobject.IO_HUP,

2081

functools.partial(self.handle_ipc,

2082

parent_pipe =

2083

parent_pipe,

2084

proc = proc,

2085

client_object =

2086

client))

2129

2087

parent_pipe.send(True)

2130

2088

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

2131

2089

# same fileno

2137

2095

2138

2096

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

2139

2097

funcname)(*args,

2140

**kwargs)))

2098

**kwargs)))

2141

2099

2142

2100

if command == 'getattr':

2143

2101

attrname = request[1]

2144

2102

if callable(client_object.__getattribute__(attrname)):

2145

parent_pipe.send(('function', ))

2103

parent_pipe.send(('function',))

2146

2104

else:

2147

parent_pipe.send((

2148

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

2105

parent_pipe.send(('data', client_object

2106

.__getattribute__(attrname)))

2149

2107

2150

2108

if command == 'setattr':

2151

2109

attrname = request[1]

2191

2149

# None

2192

2150

"followers")) # Tokens valid after

2193

2151

# this token

2194

Token = collections.namedtuple("Token", (

2195

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

2196

# a "group" containing digits

2197

"value", # datetime.timedelta or None

2198

"followers")) # Tokens valid after this token

2199

2152

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

2200

2153

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

2201

2154

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

2202

2155

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

2203

2156

datetime.timedelta(seconds=1),

2204

frozenset((token_end, )))

2157

frozenset((token_end,)))

2205

2158

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

2206

2159

datetime.timedelta(minutes=1),

2207

2160

frozenset((token_second, token_end)))

2223

2176

frozenset((token_month, token_end)))

2224

2177

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

2225

2178

datetime.timedelta(weeks=1),

2226

frozenset((token_end, )))

2179

frozenset((token_end,)))

2227

2180

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

2228

2181

frozenset((token_year, token_month,

2229

2182

token_day, token_time,

2230

token_week)))

2183

token_week))),

2231

2184

# Define starting values

2232

2185

value = datetime.timedelta() # Value so far

2233

2186

found_token = None

2234

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

2187

followers = frozenset(token_duration,) # Following valid tokens

2235

2188

s = duration # String left to parse

2236

2189

# Loop until end token is found

2237

2190

while found_token is not token_end:

2284

2237

timevalue = datetime.timedelta(0)

2285

2238

for s in interval.split():

2286

2239

try:

2287

suffix = s[-1]

2240

suffix = unicode(s[-1])

2288

2241

value = int(s[:-1])

2289

2242

if suffix == "d":

2290

2243

delta = datetime.timedelta(value)

2297

2250

elif suffix == "w":

2298

2251

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

2299

2252

else:

2300

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

2301

except IndexError as e:

2253

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

2254

.format(suffix))

2255

except (ValueError, IndexError) as e:

2302

2256

raise ValueError(*(e.args))

2303

2257

timevalue += delta

2304

2258

return timevalue

2320

2274

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

2321

2275

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

2322

2276

raise OSError(errno.ENODEV,

2323

"{} not a character device"

2277

"{0} not a character device"

2324

2278

.format(os.devnull))

2325

2279

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

2326

2280

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

2336

2290

2337

2291

parser = argparse.ArgumentParser()

2338

2292

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

2339

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

2293

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

2340

2294

help="show version number and exit")

2341

2295

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

2342

2296

help="Bind to interface IF")

2375

2329

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

2376

2330

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

2377

2331

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

2378

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

2379

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

2380

default=None)

2381

2332

2382

2333

options = parser.parse_args()

2383

2334

2384

2335

if options.check:

2385

2336

import doctest

2386

fail_count, test_count = doctest.testmod()

2387

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

2337

doctest.testmod()

2338

sys.exit()

2388

2339

2389

2340

# Default values for config file for server-global settings

2390

2341

server_defaults = { "interface": "",

2392

2343

"port": "",

2393

2344

"debug": "False",

2394

2345

"priority":

2395

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

2396

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

2346

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

2397

2347

"servicename": "Mandos",

2398

2348

"use_dbus": "True",

2399

2349

"use_ipv6": "True",

2402

2352

"socket": "",

2403

2353

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

2404

2354

"foreground": "False",

2405

"zeroconf": "True",

2406

}

2355

}

2407

2356

2408

2357

# Parse config file for server-global settings

2409

2358

server_config = configparser.SafeConfigParser(server_defaults)

2410

2359

del server_defaults

2411

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

2360

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

2361

"mandos.conf"))

2412

2362

# Convert the SafeConfigParser object to a dict

2413

2363

server_settings = server_config.defaults()

2414

2364

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

2432

2382

# Override the settings from the config file with command line

2433

2383

# options, if set.

2434

2384

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

2435

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

2436

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

2437

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

2385

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

2386

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

2387

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

2438

2388

value = getattr(options, option)

2439

2389

if value is not None:

2440

2390

server_settings[option] = value

2441

2391

del options

2442

2392

# Force all strings to be unicode

2443

2393

for option in server_settings.keys():

2444

if isinstance(server_settings[option], bytes):

2445

server_settings[option] = (server_settings[option]

2446

.decode("utf-8"))

2394

if type(server_settings[option]) is str:

2395

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

2447

2396

# Force all boolean options to be boolean

2448

2397

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

2449

"foreground", "zeroconf"):

2398

"foreground"):

2450

2399

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

2451

2400

# Debug implies foreground

2452

2401

if server_settings["debug"]:

2455

2404

2456

2405

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

2457

2406

2458

if (not server_settings["zeroconf"]

2459

and not (server_settings["port"]

2460

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

2461

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

2462

2463

2407

# For convenience

2464

2408

debug = server_settings["debug"]

2465

2409

debuglevel = server_settings["debuglevel"]

2468

2412

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

2469

2413

stored_state_file)

2470

2414

foreground = server_settings["foreground"]

2471

zeroconf = server_settings["zeroconf"]

2472

2415

2473

2416

if debug:

2474

2417

initlogger(debug, logging.DEBUG)

2480

2423

initlogger(debug, level)

2481

2424

2482

2425

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

2483

syslogger.setFormatter(

2484

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

2485

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

2486

server_settings["servicename"])))

2426

syslogger.setFormatter(logging.Formatter

2427

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

2428

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

2429

.format(server_settings

2430

["servicename"])))

2487

2431

2488

2432

# Parse config file with clients

2489

2433

client_config = configparser.SafeConfigParser(Client

2494

2438

global mandos_dbus_service

2495

2439

mandos_dbus_service = None

2496

2440

2497

socketfd = None

2498

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

2499

socketfd = server_settings["socket"]

2500

tcp_server = MandosServer(

2501

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

2502

ClientHandler,

2503

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

2504

use_ipv6=use_ipv6,

2505

gnutls_priority=server_settings["priority"],

2506

use_dbus=use_dbus,

2507

socketfd=socketfd)

2441

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

2442

server_settings["port"]),

2443

ClientHandler,

2444

interface=(server_settings["interface"]

2445

or None),

2446

use_ipv6=use_ipv6,

2447

gnutls_priority=

2448

server_settings["priority"],

2449

use_dbus=use_dbus,

2450

socketfd=(server_settings["socket"]

2451

or None))

2508

2452

if not foreground:

2509

2453

pidfilename = "/run/mandos.pid"

2510

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

2511

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

2512

2454

pidfile = None

2513

2455

try:

2514

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

2456

pidfile = open(pidfilename, "w")

2515

2457

except IOError as e:

2516

2458

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

2517

2459

exc_info=e)

2531

2473

os.setuid(uid)

2532

2474

except OSError as error:

2533

2475

if error.errno != errno.EPERM:

2534

raise

2476

raise error

2535

2477

2536

2478

if debug:

2537

2479

# Enable all possible GnuTLS debugging

2544

2486

def debug_gnutls(level, string):

2545

2487

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

2546

2488

2547

gnutls.library.functions.gnutls_global_set_log_function(

2548

debug_gnutls)

2489

(gnutls.library.functions

2490

.gnutls_global_set_log_function(debug_gnutls))

2549

2491

2550

2492

# Redirect stdin so all checkers get /dev/null

2551

2493

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

2571

2513

if use_dbus:

2572

2514

try:

2573

2515

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

2574

bus,

2575

do_not_queue=True)

2576

old_bus_name = dbus.service.BusName(

2577

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

2578

do_not_queue=True)

2579

except dbus.exceptions.DBusException as e:

2516

bus, do_not_queue=True)

2517

old_bus_name = (dbus.service.BusName

2518

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

2519

do_not_queue=True))

2520

except dbus.exceptions.NameExistsException as e:

2580

2521

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

2581

2522

use_dbus = False

2582

2523

server_settings["use_dbus"] = False

2583

2524

tcp_server.use_dbus = False

2584

if zeroconf:

2585

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2586

service = AvahiServiceToSyslog(

2587

name = server_settings["servicename"],

2588

servicetype = "_mandos._tcp",

2589

protocol = protocol,

2590

bus = bus)

2591

if server_settings["interface"]:

2592

service.interface = if_nametoindex(

2593

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

2525

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2526

service = AvahiServiceToSyslog(name =

2527

server_settings["servicename"],

2528

servicetype = "_mandos._tcp",

2529

protocol = protocol, bus = bus)

2530

if server_settings["interface"]:

2531

service.interface = (if_nametoindex

2532

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

2594

2533

2595

2534

global multiprocessing_manager

2596

2535

multiprocessing_manager = multiprocessing.Manager()

2615

2554

if server_settings["restore"]:

2616

2555

try:

2617

2556

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

2618

clients_data, old_client_settings = pickle.load(

2619

stored_state)

2557

clients_data, old_client_settings = (pickle.load

2558

(stored_state))

2620

2559

os.remove(stored_state_path)

2621

2560

except IOError as e:

2622

2561

if e.errno == errno.ENOENT:

2623

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

2624

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

2562

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

2563

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

2625

2564

else:

2626

2565

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

2627

2566

exc_info=e)

2628

2567

raise

2629

2568

except EOFError as e:

2630

2569

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

2631

"EOFError:",

2632

exc_info=e)

2570

"EOFError:", exc_info=e)

2633

2571

2634

2572

with PGPEngine() as pgp:

2635

for client_name, client in clients_data.items():

2573

for client_name, client in clients_data.iteritems():

2636

2574

# Skip removed clients

2637

2575

if client_name not in client_settings:

2638

2576

continue

2647

2585

# For each value in new config, check if it

2648

2586

# differs from the old config value (Except for

2649

2587

# the "secret" attribute)

2650

if (name != "secret"

2651

and (value !=

2652

old_client_settings[client_name][name])):

2588

if (name != "secret" and

2589

value != old_client_settings[client_name]

2590

[name]):

2653

2591

client[name] = value

2654

2592

except KeyError:

2655

2593

pass

2663

2601

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

2664

2602

if not client["last_checked_ok"]:

2665

2603

logger.warning(

2666

"disabling client {} - Client never "

2667

"performed a successful checker".format(

2668

client_name))

2604

"disabling client {0} - Client never "

2605

"performed a successful checker"

2606

.format(client_name))

2669

2607

client["enabled"] = False

2670

2608

elif client["last_checker_status"] != 0:

2671

2609

logger.warning(

2672

"disabling client {} - Client last"

2673

" checker failed with error code"

2674

" {}".format(

2675

client_name,

2676

client["last_checker_status"]))

2610

"disabling client {0} - Client "

2611

"last checker failed with error code {1}"

2612

.format(client_name,

2613

client["last_checker_status"]))

2677

2614

client["enabled"] = False

2678

2615

else:

2679

client["expires"] = (

2680

datetime.datetime.utcnow()

2681

+ client["timeout"])

2616

client["expires"] = (datetime.datetime

2617

.utcnow()

2618

+ client["timeout"])

2682

2619

logger.debug("Last checker succeeded,"

2683

" keeping {} enabled".format(

2684

client_name))

2620

" keeping {0} enabled"

2621

.format(client_name))

2685

2622

try:

2686

client["secret"] = pgp.decrypt(

2687

client["encrypted_secret"],

2688

client_settings[client_name]["secret"])

2623

client["secret"] = (

2624

pgp.decrypt(client["encrypted_secret"],

2625

client_settings[client_name]

2626

["secret"]))

2689

2627

except PGPError:

2690

2628

# If decryption fails, we use secret from new settings

2691

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

2692

client_name))

2693

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

2694

["secret"])

2629

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

2630

.format(client_name))

2631

client["secret"] = (

2632

client_settings[client_name]["secret"])

2695

2633

2696

2634

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

2697

2635

for client_name in (set(old_client_settings)

2702

2640

clients_data[client_name] = client_settings[client_name]

2703

2641

2704

2642

# Create all client objects

2705

for client_name, client in clients_data.items():

2643

for client_name, client in clients_data.iteritems():

2706

2644

tcp_server.clients[client_name] = client_class(

2707

name = client_name,

2708

settings = client,

2645

name = client_name, settings = client,

2709

2646

server_settings = server_settings)

2710

2647

2711

2648

if not tcp_server.clients:

2713

2650

2714

2651

if not foreground:

2715

2652

if pidfile is not None:

2716

pid = os.getpid()

2717

2653

try:

2718

2654

with pidfile:

2719

print(pid, file=pidfile)

2655

pid = os.getpid()

2656

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

2720

2657

except IOError:

2721

2658

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

2722

2659

pidfilename, pid)

2727

2664

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

2728

2665

2729

2666

if use_dbus:

2730

2731

@alternate_dbus_interfaces(

2732

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

2667

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

2668

"se.bsnet.fukt.Mandos"})

2733

2669

class MandosDBusService(DBusObjectWithProperties):

2734

2670

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

2735

2736

2671

def __init__(self):

2737

2672

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

2738

2739

2673

_interface = "se.recompile.Mandos"

2740

2674

2741

2675

@dbus_interface_annotations(_interface)

2742

2676

def _foo(self):

2743

return {

2744

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

2745

"false" }

2677

return { "org.freedesktop.DBus.Property"

2678

".EmitsChangedSignal":

2679

"false"}

2746

2680

2747

2681

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

2748

2682

def ClientAdded(self, objpath):

2762

2696

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

2763

2697

def GetAllClients(self):

2764

2698

"D-Bus method"

2765

return dbus.Array(c.dbus_object_path for c in

2699

return dbus.Array(c.dbus_object_path

2700

for c in

2766

2701

tcp_server.clients.itervalues())

2767

2702

2768

2703

@dbus.service.method(_interface,

2770

2705

def GetAllClientsWithProperties(self):

2771

2706

"D-Bus method"

2772

2707

return dbus.Dictionary(

2773

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

2774

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

2708

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

2709

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

2775

2710

signature="oa{sv}")

2776

2711

2777

2712

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

2794

2729

2795

2730

def cleanup():

2796

2731

"Cleanup function; run on exit"

2797

if zeroconf:

2798

service.cleanup()

2732

service.cleanup()

2799

2733

2800

2734

multiprocessing.active_children()

2801

2735

wnull.close()

2815

2749

2816

2750

# A list of attributes that can not be pickled

2817

2751

# + secret.

2818

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

2819

"checker", "server_settings" }

2820

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

2821

.Object):

2752

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

2753

"checker", "server_settings"))

2754

for name, typ in (inspect.getmembers

2755

(dbus.service.Object)):

2822

2756

exclude.add(name)

2823

2757

2824

2758

client_dict["encrypted_secret"] = (client

2831

2765

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

2832

2766

2833

2767

try:

2834

with tempfile.NamedTemporaryFile(

2835

mode='wb',

2836

suffix=".pickle",

2837

prefix='clients-',

2838

dir=os.path.dirname(stored_state_path),

2839

delete=False) as stored_state:

2768

with (tempfile.NamedTemporaryFile

2769

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

2770

dir=os.path.dirname(stored_state_path),

2771

delete=False)) as stored_state:

2840

2772

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

2841

tempname = stored_state.name

2773

tempname=stored_state.name

2842

2774

os.rename(tempname, stored_state_path)

2843

2775

except (IOError, OSError) as e:

2844

2776

if not debug:

2847

2779

except NameError:

2848

2780

pass

2849

2781

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

2850

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

2782

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

2851

2783

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

2852

2784

else:

2853

2785

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

2854

2786

exc_info=e)

2855

raise

2787

raise e

2856

2788

2857

2789

# Delete all clients, and settings from config

2858

2790

while tcp_server.clients:

2863

2795

client.disable(quiet=True)

2864

2796

if use_dbus:

2865

2797

# Emit D-Bus signal

2866

mandos_dbus_service.ClientRemoved(

2867

client.dbus_object_path, client.name)

2798

mandos_dbus_service.ClientRemoved(client

2799

.dbus_object_path,

2800

client.name)

2868

2801

client_settings.clear()

2869

2802

2870

2803

atexit.register(cleanup)

2881

2814

tcp_server.server_activate()

2882

2815

2883

2816

# Find out what port we got

2884

if zeroconf:

2885

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

2817

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

2886

2818

if use_ipv6:

2887

2819

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

2888

2820

" flowinfo %d, scope_id %d",

2894

2826

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

2895

2827

2896

2828

try:

2897

if zeroconf:

2898

# From the Avahi example code

2899

try:

2900

service.activate()

2901

except dbus.exceptions.DBusException as error:

2902

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

2903

cleanup()

2904

sys.exit(1)

2905

# End of Avahi example code

2829

# From the Avahi example code

2830

try:

2831

service.activate()

2832

except dbus.exceptions.DBusException as error:

2833

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

2834

cleanup()

2835

sys.exit(1)

2836

# End of Avahi example code

2906

2837

2907

2838

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

2908

2839

lambda *args, **kwargs:

2923

2854

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

2924

2855

cleanup()

2925

2856

2926

2927

2857

if __name__ == '__main__':

2928

2858

main()