/mandos/release : revision 237.7.174

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

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#

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# Everything else is

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#

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

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

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from __future__ import (division, absolute_import, print_function,

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unicode_literals)

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try:

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from future_builtins import *

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except ImportError:

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pass

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from future_builtins import *

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try:

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import SocketServer as socketserver

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except ImportError:

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import socketserver

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import SocketServer as socketserver

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import socket

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import argparse

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import datetime

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import errno

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try:

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import ConfigParser as configparser

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except ImportError:

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import configparser

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import gnutls.crypto

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import gnutls.connection

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import gnutls.errors

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import gnutls.library.functions

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import gnutls.library.constants

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import gnutls.library.types

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import ConfigParser as configparser

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import sys

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import re

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import os

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import struct

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import fcntl

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import functools

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try:

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import cPickle as pickle

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except ImportError:

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import pickle

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import cPickle as pickle

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import multiprocessing

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import types

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import binascii

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import tempfile

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import itertools

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import collections

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import codecs

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import dbus

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import dbus.service

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from gi.repository import GLib

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import gobject

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import avahi

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from dbus.mainloop.glib import DBusGMainLoop

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import ctypes

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import ctypes.util

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except ImportError:

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SO_BINDTODEVICE = None

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if sys.version_info.major == 2:

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str = unicode

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version = "1.7.5"

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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 copy_function(func):

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

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if sys.version_info.major == 2:

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return types.FunctionType(func.func_code,

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func.func_globals,

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func.func_name,

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func.func_defaults,

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func.func_closure)

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else:

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return types.FunctionType(func.__code__,

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func.__globals__,

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func.__name__,

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func.__defaults__,

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func.__closure__)

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

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"""init logger and add loglevel"""

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global syslogger

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syslogger = (logging.handlers.SysLogHandler(

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facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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address = "/dev/log"))

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syslogger.setFormatter(logging.Formatter

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

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' %(message)s'))

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class PGPEngine(object):

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

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def __init__(self):

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

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self.gpg = "gpg"

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try:

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

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for line in output.splitlines():

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

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if name == "gpg":

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self.gpg = path

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break

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except OSError as e:

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if e.errno != errno.ENOENT:

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raise

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self.gnupgargs = ['--batch',

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'--homedir', self.tempdir,

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'--home', self.tempdir,

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'--force-mdc',

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'--quiet',

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'--no-use-agent']

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def 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([self.gpg, '--symmetric',

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

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'--passphrase-file',

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passfile.name]

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+ self.gnupgargs,

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def decrypt(self, data, password):

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passphrase = self.password_encode(password)

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with tempfile.NamedTemporaryFile(

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dir = self.tempdir) as passfile:

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with tempfile.NamedTemporaryFile(dir = self.tempdir

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) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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

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'--passphrase-file',

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passfile.name]

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+ self.gnupgargs,

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stdin = subprocess.PIPE,

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stdout = subprocess.PIPE,

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stderr = subprocess.PIPE)

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

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decrypted_plaintext, err = proc.communicate(input

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= data)

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if proc.returncode != 0:

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raise PGPError(err)

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return decrypted_plaintext

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# Pretend that we have an Avahi module

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class Avahi(object):

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

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

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

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

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PROTO_INET = 0 # avahi-common/address.h

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PROTO_INET6 = 1 # avahi-common/address.h

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DBUS_NAME = "org.freedesktop.Avahi"

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DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"

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DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"

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DBUS_PATH_SERVER = "/"

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def string_array_to_txt_array(self, t):

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

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

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ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h

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ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h

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ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h

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SERVER_INVALID = 0 # avahi-common/defs.h

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SERVER_REGISTERING = 1 # avahi-common/defs.h

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SERVER_RUNNING = 2 # avahi-common/defs.h

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SERVER_COLLISION = 3 # avahi-common/defs.h

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SERVER_FAILURE = 4 # avahi-common/defs.h

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avahi = Avahi()

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class AvahiError(Exception):

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

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self.value = value

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

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**kwargs)

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

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def __unicode__(self):

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return unicode(repr(self.value))

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class AvahiServiceError(AvahiError):

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pass

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class AvahiGroupError(AvahiError):

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pass

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bus: dbus.SystemBus()

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"""

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def __init__(self,

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interface = avahi.IF_UNSPEC,

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name = None,

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servicetype = None,

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port = None,

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TXT = None,

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domain = "",

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host = "",

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max_renames = 32768,

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protocol = avahi.PROTO_UNSPEC,

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bus = None):

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

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

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

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protocol = avahi.PROTO_UNSPEC, bus = None):

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self.interface = interface

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self.name = name

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self.type = servicetype

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self.bus = bus

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self.entry_group_state_changed_match = None

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def rename(self, remove=True):

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def rename(self):

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

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if self.rename_count >= self.max_renames:

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

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" after %i retries, exiting.",

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self.rename_count)

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raise AvahiServiceError("Too many renames")

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self.name = str(

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self.server.GetAlternativeServiceName(self.name))

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self.rename_count += 1

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self.name = unicode(self.server

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.GetAlternativeServiceName(self.name))

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

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self.name)

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if remove:

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self.remove()

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self.remove()

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

360

if (error.get_dbus_name()

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

362

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()

367

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))

331

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"""

427

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

428

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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356

if state in bad_states:

435

357

if bad_states[state] is not None:

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if error is None:

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

440

362

self.cleanup()

441

363

elif state == avahi.SERVER_RUNNING:

442

try:

443

self.add()

444

except dbus.exceptions.DBusException as error:

445

if (error.get_dbus_name()

446

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

447

logger.info("Local Zeroconf service name"

448

" collision.")

449

return self.rename(remove=False)

450

else:

451

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

452

self.cleanup()

453

os._exit(1)

364

self.add()

454

365

else:

455

366

if error is None:

456

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

466

377

follow_name_owner_changes=True),

467

378

avahi.DBUS_INTERFACE_SERVER)

468

379

self.server.connect_to_signal("StateChanged",

469

self.server_state_changed)

380

self.server_state_changed)

470

381

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

471

382

472

383

473

384

class AvahiServiceToSyslog(AvahiService):

474

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

385

def rename(self):

475

386

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

476

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

477

syslogger.setFormatter(logging.Formatter(

478

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

479

.format(self.name)))

387

ret = AvahiService.rename(self)

388

syslogger.setFormatter(logging.Formatter

389

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

390

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

391

.format(self.name)))

480

392

return ret

481

393

482

# Pretend that we have a GnuTLS module

483

class GnuTLS(object):

484

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

485

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

486

487

_library = ctypes.cdll.LoadLibrary(

488

ctypes.util.find_library("gnutls"))

489

_need_version = b"3.3.0"

490

def __init__(self):

491

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

492

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

493

# happens.

494

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

495

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

496

.format(self._need_version))

497

498

# Unless otherwise indicated, the constants and types below are

499

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

500

501

# Constants

502

E_SUCCESS = 0

503

E_INTERRUPTED = -52

504

E_AGAIN = -28

505

CRT_OPENPGP = 2

506

CLIENT = 2

507

SHUT_RDWR = 0

508

CRD_CERTIFICATE = 1

509

E_NO_CERTIFICATE_FOUND = -49

510

OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h

511

512

# Types

513

class session_int(ctypes.Structure):

514

_fields_ = []

515

session_t = ctypes.POINTER(session_int)

516

class certificate_credentials_st(ctypes.Structure):

517

_fields_ = []

518

certificate_credentials_t = ctypes.POINTER(

519

certificate_credentials_st)

520

certificate_type_t = ctypes.c_int

521

class datum_t(ctypes.Structure):

522

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

523

('size', ctypes.c_uint)]

524

class openpgp_crt_int(ctypes.Structure):

525

_fields_ = []

526

openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)

527

openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h

528

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

529

credentials_type_t = ctypes.c_int

530

transport_ptr_t = ctypes.c_void_p

531

close_request_t = ctypes.c_int

532

533

# Exceptions

534

class Error(Exception):

535

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

536

# exception might be raised from within GnuTLS.__init__,

537

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

538

# global variable has happened.

539

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

540

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

541

# code is passed, convert it to a string with

542

# gnutls.strerror()

543

self.code = code

544

if message is None and code is not None:

545

message = GnuTLS.strerror(code)

546

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

547

message, *args)

548

549

class CertificateSecurityError(Error):

550

pass

551

552

# Classes

553

class Credentials(object):

554

def __init__(self):

555

self._c_object = gnutls.certificate_credentials_t()

556

gnutls.certificate_allocate_credentials(

557

ctypes.byref(self._c_object))

558

self.type = gnutls.CRD_CERTIFICATE

559

560

def __del__(self):

561

gnutls.certificate_free_credentials(self._c_object)

562

563

class ClientSession(object):

564

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

565

self._c_object = gnutls.session_t()

566

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

567

gnutls.set_default_priority(self._c_object)

568

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

569

gnutls.handshake_set_private_extensions(self._c_object,

570

True)

571

self.socket = socket

572

if credentials is None:

573

credentials = gnutls.Credentials()

574

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

575

ctypes.cast(credentials._c_object,

576

ctypes.c_void_p))

577

self.credentials = credentials

578

579

def __del__(self):

580

gnutls.deinit(self._c_object)

581

582

def handshake(self):

583

return gnutls.handshake(self._c_object)

584

585

def send(self, data):

586

data = bytes(data)

587

data_len = len(data)

588

while data_len > 0:

589

data_len -= gnutls.record_send(self._c_object,

590

data[-data_len:],

591

data_len)

592

593

def bye(self):

594

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

595

596

# Error handling functions

597

def _error_code(result):

598

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

599

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

600

if result >= 0:

601

return result

602

if result == gnutls.E_NO_CERTIFICATE_FOUND:

603

raise gnutls.CertificateSecurityError(code = result)

604

raise gnutls.Error(code = result)

605

606

def _retry_on_error(result, func, arguments):

607

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

608

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

609

while result < 0:

610

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

611

return _error_code(result)

612

result = func(*arguments)

613

return result

614

615

# Unless otherwise indicated, the function declarations below are

616

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

617

618

# Functions

619

priority_set_direct = _library.gnutls_priority_set_direct

620

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

621

ctypes.POINTER(ctypes.c_char_p)]

622

priority_set_direct.restype = _error_code

623

624

init = _library.gnutls_init

625

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

626

init.restype = _error_code

627

628

set_default_priority = _library.gnutls_set_default_priority

629

set_default_priority.argtypes = [session_t]

630

set_default_priority.restype = _error_code

631

632

record_send = _library.gnutls_record_send

633

record_send.argtypes = [session_t, ctypes.c_void_p,

634

ctypes.c_size_t]

635

record_send.restype = ctypes.c_ssize_t

636

record_send.errcheck = _retry_on_error

637

638

certificate_allocate_credentials = (

639

_library.gnutls_certificate_allocate_credentials)

640

certificate_allocate_credentials.argtypes = [

641

ctypes.POINTER(certificate_credentials_t)]

642

certificate_allocate_credentials.restype = _error_code

643

644

certificate_free_credentials = (

645

_library.gnutls_certificate_free_credentials)

646

certificate_free_credentials.argtypes = [certificate_credentials_t]

647

certificate_free_credentials.restype = None

648

649

handshake_set_private_extensions = (

650

_library.gnutls_handshake_set_private_extensions)

651

handshake_set_private_extensions.argtypes = [session_t,

652

ctypes.c_int]

653

handshake_set_private_extensions.restype = None

654

655

credentials_set = _library.gnutls_credentials_set

656

credentials_set.argtypes = [session_t, credentials_type_t,

657

ctypes.c_void_p]

658

credentials_set.restype = _error_code

659

660

strerror = _library.gnutls_strerror

661

strerror.argtypes = [ctypes.c_int]

662

strerror.restype = ctypes.c_char_p

663

664

certificate_type_get = _library.gnutls_certificate_type_get

665

certificate_type_get.argtypes = [session_t]

666

certificate_type_get.restype = _error_code

667

668

certificate_get_peers = _library.gnutls_certificate_get_peers

669

certificate_get_peers.argtypes = [session_t,

670

ctypes.POINTER(ctypes.c_uint)]

671

certificate_get_peers.restype = ctypes.POINTER(datum_t)

672

673

global_set_log_level = _library.gnutls_global_set_log_level

674

global_set_log_level.argtypes = [ctypes.c_int]

675

global_set_log_level.restype = None

676

677

global_set_log_function = _library.gnutls_global_set_log_function

678

global_set_log_function.argtypes = [log_func]

679

global_set_log_function.restype = None

680

681

deinit = _library.gnutls_deinit

682

deinit.argtypes = [session_t]

683

deinit.restype = None

684

685

handshake = _library.gnutls_handshake

686

handshake.argtypes = [session_t]

687

handshake.restype = _error_code

688

handshake.errcheck = _retry_on_error

689

690

transport_set_ptr = _library.gnutls_transport_set_ptr

691

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

692

transport_set_ptr.restype = None

693

694

bye = _library.gnutls_bye

695

bye.argtypes = [session_t, close_request_t]

696

bye.restype = _error_code

697

bye.errcheck = _retry_on_error

698

699

check_version = _library.gnutls_check_version

700

check_version.argtypes = [ctypes.c_char_p]

701

check_version.restype = ctypes.c_char_p

702

703

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

704

705

openpgp_crt_init = _library.gnutls_openpgp_crt_init

706

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

707

openpgp_crt_init.restype = _error_code

708

709

openpgp_crt_import = _library.gnutls_openpgp_crt_import

710

openpgp_crt_import.argtypes = [openpgp_crt_t,

711

ctypes.POINTER(datum_t),

712

openpgp_crt_fmt_t]

713

openpgp_crt_import.restype = _error_code

714

715

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

716

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

717

ctypes.POINTER(ctypes.c_uint)]

718

openpgp_crt_verify_self.restype = _error_code

719

720

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

721

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

722

openpgp_crt_deinit.restype = None

723

724

openpgp_crt_get_fingerprint = (

725

_library.gnutls_openpgp_crt_get_fingerprint)

726

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

727

ctypes.c_void_p,

728

ctypes.POINTER(

729

ctypes.c_size_t)]

730

openpgp_crt_get_fingerprint.restype = _error_code

731

732

# Remove non-public functions

733

del _error_code, _retry_on_error

734

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

735

gnutls = GnuTLS()

736

737

def call_pipe(connection, # : multiprocessing.Connection

738

func, *args, **kwargs):

739

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

740

741

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

742

return value on the provided multiprocessing.Connection.

743

"""

744

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

745

connection.close()

394

395

def timedelta_to_milliseconds(td):

396

"Convert a datetime.timedelta() to milliseconds"

397

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

398

+ (td.seconds * 1000)

399

+ (td.microseconds // 1000))

400

746

401

747

402

class Client(object):

748

403

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

754

409

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

755

410

to see if the client lives.

756

411

'None' if no process is running.

757

checker_callback_tag: a GLib event source tag, or None

412

checker_callback_tag: a gobject event source tag, or None

758

413

checker_command: string; External command which is run to check

759

414

if client lives. %() expansions are done at

760

415

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

761

416

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

762

checker_initiator_tag: a GLib event source tag, or None

417

checker_initiator_tag: a gobject event source tag, or None

763

418

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

764

419

client_structure: Object describing what attributes a client has

765

420

and is used for storing the client at exit

766

421

current_checker_command: string; current running checker_command

767

disable_initiator_tag: a GLib event source tag, or None

422

disable_initiator_tag: a gobject event source tag, or None

768

423

enabled: bool()

769

424

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

770

425

uniquely identify the client

775

430

last_checker_status: integer between 0 and 255 reflecting exit

776

431

status of last checker. -1 reflects crashed

777

432

checker, -2 means no checker completed yet.

778

last_checker_signal: The signal which killed the last checker, if

779

last_checker_status is -1

780

433

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

781

434

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

782

435

D-Bus identifiers

795

448

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

796

449

"last_approval_request", "last_checked_ok",

797

450

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

798

client_defaults = {

799

"timeout": "PT5M",

800

"extended_timeout": "PT15M",

801

"interval": "PT2M",

802

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

803

"host": "",

804

"approval_delay": "PT0S",

805

"approval_duration": "PT1S",

806

"approved_by_default": "True",

807

"enabled": "True",

808

}

451

client_defaults = { "timeout": "PT5M",

452

"extended_timeout": "PT15M",

453

"interval": "PT2M",

454

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

455

"host": "",

456

"approval_delay": "PT0S",

457

"approval_duration": "PT1S",

458

"approved_by_default": "True",

459

"enabled": "True",

460

}

461

462

def timeout_milliseconds(self):

463

"Return the 'timeout' attribute in milliseconds"

464

return timedelta_to_milliseconds(self.timeout)

465

466

def extended_timeout_milliseconds(self):

467

"Return the 'extended_timeout' attribute in milliseconds"

468

return timedelta_to_milliseconds(self.extended_timeout)

469

470

def interval_milliseconds(self):

471

"Return the 'interval' attribute in milliseconds"

472

return timedelta_to_milliseconds(self.interval)

473

474

def approval_delay_milliseconds(self):

475

return timedelta_to_milliseconds(self.approval_delay)

809

476

810

477

@staticmethod

811

478

def config_parser(config):

827

494

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

828

495

"enabled")

829

496

830

# Uppercase and remove spaces from fingerprint for later

831

# comparison purposes with return value from the

832

# fingerprint() function

833

497

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

834

498

.replace(" ", ""))

835

499

if "secret" in section:

836

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

837

.encode("utf-8"),

838

"base64")

500

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

839

501

elif "secfile" in section:

840

502

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

841

503

(section["secfile"])),

842

504

"rb") as secfile:

843

505

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

844

506

else:

845

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

507

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

846

508

.format(section))

847

509

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

848

510

client["extended_timeout"] = string_to_delta(

865

527

server_settings = {}

866

528

self.server_settings = server_settings

867

529

# adding all client settings

868

for setting, value in settings.items():

530

for setting, value in settings.iteritems():

869

531

setattr(self, setting, value)

870

532

871

533

if self.enabled:

879

541

self.expires = None

880

542

881

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

882

547

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

883

548

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

884

549

datetime.datetime.utcnow())

891

556

self.current_checker_command = None

892

557

self.approved = None

893

558

self.approvals_pending = 0

894

self.changedstate = multiprocessing_manager.Condition(

895

multiprocessing_manager.Lock())

896

self.client_structure = [attr

897

for attr in self.__dict__.keys()

559

self.changedstate = (multiprocessing_manager

560

.Condition(multiprocessing_manager

561

.Lock()))

562

self.client_structure = [attr for attr in

563

self.__dict__.iterkeys()

898

564

if not attr.startswith("_")]

899

565

self.client_structure.append("client_structure")

900

566

901

for name, t in inspect.getmembers(

902

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

567

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

568

lambda obj:

569

isinstance(obj,

570

property)):

903

571

if not name.startswith("_"):

904

572

self.client_structure.append(name)

905

573

926

594

if not quiet:

927

595

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

928

596

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

929

GLib.source_remove(self.disable_initiator_tag)

597

gobject.source_remove(self.disable_initiator_tag)

930

598

self.disable_initiator_tag = None

931

599

self.expires = None

932

600

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

933

GLib.source_remove(self.checker_initiator_tag)

601

gobject.source_remove(self.checker_initiator_tag)

934

602

self.checker_initiator_tag = None

935

603

self.stop_checker()

936

604

self.enabled = False

937

605

if not quiet:

938

606

self.send_changedstate()

939

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

607

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

940

608

return False

941

609

942

610

def __del__(self):

946

614

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

947

615

# and every interval from then on.

948

616

if self.checker_initiator_tag is not None:

949

GLib.source_remove(self.checker_initiator_tag)

950

self.checker_initiator_tag = GLib.timeout_add(

951

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

952

self.start_checker)

617

gobject.source_remove(self.checker_initiator_tag)

618

self.checker_initiator_tag = (gobject.timeout_add

619

(self.interval_milliseconds(),

620

self.start_checker))

953

621

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

954

622

if self.disable_initiator_tag is not None:

955

GLib.source_remove(self.disable_initiator_tag)

956

self.disable_initiator_tag = GLib.timeout_add(

957

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

623

gobject.source_remove(self.disable_initiator_tag)

624

self.disable_initiator_tag = (gobject.timeout_add

625

(self.timeout_milliseconds(),

626

self.disable))

958

627

# Also start a new checker *right now*.

959

628

self.start_checker()

960

629

961

def checker_callback(self, source, condition, connection,

962

command):

630

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

963

631

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

964

632

self.checker_callback_tag = None

965

633

self.checker = None

966

# Read return code from connection (see call_pipe)

967

returncode = connection.recv()

968

connection.close()

969

970

if returncode >= 0:

971

self.last_checker_status = returncode

972

self.last_checker_signal = None

634

if os.WIFEXITED(condition):

635

self.last_checker_status = os.WEXITSTATUS(condition)

973

636

if self.last_checker_status == 0:

974

637

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

975

638

vars(self))

976

639

self.checked_ok()

977

640

else:

978

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

641

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

642

vars(self))

979

643

else:

980

644

self.last_checker_status = -1

981

self.last_checker_signal = -returncode

982

645

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

983

646

vars(self))

984

return False

985

647

986

648

def checked_ok(self):

987

649

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

988

650

self.last_checked_ok = datetime.datetime.utcnow()

989

651

self.last_checker_status = 0

990

self.last_checker_signal = None

991

652

self.bump_timeout()

992

653

993

654

def bump_timeout(self, timeout=None):

995

656

if timeout is None:

996

657

timeout = self.timeout

997

658

if self.disable_initiator_tag is not None:

998

GLib.source_remove(self.disable_initiator_tag)

659

gobject.source_remove(self.disable_initiator_tag)

999

660

self.disable_initiator_tag = None

1000

661

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

1001

self.disable_initiator_tag = GLib.timeout_add(

1002

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

662

self.disable_initiator_tag = (gobject.timeout_add

663

(timedelta_to_milliseconds

664

(timeout), self.disable))

1003

665

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

1004

666

1005

667

def need_approval(self):

1019

681

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

1020

682

# should be.

1021

683

1022

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

1023

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

1024

self.checker.join()

1025

self.checker = None

684

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

685

try:

686

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

687

except (AttributeError, OSError) as error:

688

if (isinstance(error, OSError)

689

and error.errno != errno.ECHILD):

690

raise error

691

else:

692

if pid:

693

logger.warning("Checker was a zombie")

694

gobject.source_remove(self.checker_callback_tag)

695

self.checker_callback(pid, status,

696

self.current_checker_command)

1026

697

# Start a new checker if needed

1027

698

if self.checker is None:

1028

699

# Escape attributes for the shell

1029

escaped_attrs = {

1030

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

1031

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)

1032

704

try:

1033

705

command = self.checker_command % escaped_attrs

1034

706

except TypeError as error:

1035

707

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

1036

self.checker_command,

708

self.checker_command, exc_info=error)

709

return True # Try again later

710

self.current_checker_command = command

711

try:

712

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

713

command, self.name)

714

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

715

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

716

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

717

# always replaced by /dev/null.)

718

# The exception is when not debugging but nevertheless

719

# running in the foreground; use the previously

720

# created wnull.

721

popen_args = {}

722

if (not self.server_settings["debug"]

723

and self.server_settings["foreground"]):

724

popen_args.update({"stdout": wnull,

725

"stderr": wnull })

726

self.checker = subprocess.Popen(command,

727

close_fds=True,

728

shell=True, cwd="/",

729

**popen_args)

730

except OSError as error:

731

logger.error("Failed to start subprocess",

1037

732

exc_info=error)

1038

return True # Try again later

1039

self.current_checker_command = command

1040

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

1041

self.name)

1042

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

1043

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

1044

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

1045

# always replaced by /dev/null.)

1046

# The exception is when not debugging but nevertheless

1047

# running in the foreground; use the previously

1048

# created wnull.

1049

popen_args = { "close_fds": True,

1050

"shell": True,

1051

"cwd": "/" }

1052

if (not self.server_settings["debug"]

1053

and self.server_settings["foreground"]):

1054

popen_args.update({"stdout": wnull,

1055

"stderr": wnull })

1056

pipe = multiprocessing.Pipe(duplex = False)

1057

self.checker = multiprocessing.Process(

1058

target = call_pipe,

1059

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

1060

kwargs = popen_args)

1061

self.checker.start()

1062

self.checker_callback_tag = GLib.io_add_watch(

1063

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

1064

self.checker_callback, pipe[0], command)

1065

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

733

return True

734

self.checker_callback_tag = (gobject.child_watch_add

735

(self.checker.pid,

736

self.checker_callback,

737

data=command))

738

# The checker may have completed before the gobject

739

# watch was added. Check for this.

740

try:

741

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

742

except OSError as error:

743

if error.errno == errno.ECHILD:

744

# This should never happen

745

logger.error("Child process vanished",

746

exc_info=error)

747

return True

748

raise

749

if pid:

750

gobject.source_remove(self.checker_callback_tag)

751

self.checker_callback(pid, status, command)

752

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

1066

753

return True

1067

754

1068

755

def stop_checker(self):

1069

756

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

1070

757

if self.checker_callback_tag:

1071

GLib.source_remove(self.checker_callback_tag)

758

gobject.source_remove(self.checker_callback_tag)

1072

759

self.checker_callback_tag = None

1073

760

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

1074

761

return

1075

762

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

1076

self.checker.terminate()

763

try:

764

self.checker.terminate()

765

#time.sleep(0.5)

766

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

767

# self.checker.kill()

768

except OSError as error:

769

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

770

raise

1077

771

self.checker = None

1078

772

1079

773

1080

def dbus_service_property(dbus_interface,

1081

signature="v",

1082

access="readwrite",

1083

byte_arrays=False):

774

def dbus_service_property(dbus_interface, signature="v",

775

access="readwrite", byte_arrays=False):

1084

776

"""Decorators for marking methods of a DBusObjectWithProperties to

1085

777

become properties on the D-Bus.

1086

778

1095

787

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

1096

788

if byte_arrays and signature != "ay":

1097

789

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

1098

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

1099

790

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

1100

791

def decorator(func):

1101

792

func._dbus_is_property = True

1102

793

func._dbus_interface = dbus_interface

1107

798

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

1108

799

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

1109

800

return func

1110

1111

801

return decorator

1112

802

1113

803

1122

812

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

1123

813

"false"}

1124

814

"""

1125

1126

815

def decorator(func):

1127

816

func._dbus_is_interface = True

1128

817

func._dbus_interface = dbus_interface

1129

818

func._dbus_name = dbus_interface

1130

819

return func

1131

1132

820

return decorator

1133

821

1134

822

1136

824

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

1137

825

Usage:

1138

826

1139

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

1140

"org.freedesktop.DBus.Property."

1141

"EmitsChangedSignal": "false"})

1142

827

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

1143

828

access="r")

829

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

830

"org.freedesktop.DBus.Property."

831

"EmitsChangedSignal": "false"})

1144

832

def Property_dbus_property(self):

1145

833

return dbus.Boolean(False)

1146

1147

See also the DBusObjectWithAnnotations class.

1148

834

"""

1149

1150

835

def decorator(func):

1151

836

func._dbus_annotations = annotations

1152

837

return func

1153

1154

838

return decorator

1155

839

1156

840

1157

841

class DBusPropertyException(dbus.exceptions.DBusException):

1158

842

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

1159

843

"""

1160

pass

844

def __unicode__(self):

845

return unicode(str(self))

1161

846

1162

847

1163

848

class DBusPropertyAccessException(DBusPropertyException):

1172

857

pass

1173

858

1174

859

1175

class DBusObjectWithAnnotations(dbus.service.Object):

1176

"""A D-Bus object with annotations.

860

class DBusObjectWithProperties(dbus.service.Object):

861

"""A D-Bus object with properties.

1177

862

1178

Classes inheriting from this can use the dbus_annotations

1179

decorator to add annotations to methods or signals.

863

Classes inheriting from this can use the dbus_service_property

864

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

865

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

1180

866

"""

1181

867

1182

868

@staticmethod

1186

872

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

1187

873

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

1188

874

"""

1189

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

875

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

1190

876

False)

1191

877

1192

878

def _get_all_dbus_things(self, thing):

1193

879

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

1194

880

"""

1195

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

881

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

882

name),

1196

883

athing.__get__(self))

1197

884

for cls in self.__class__.__mro__

1198

885

for name, athing in

1199

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

1200

1201

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1202

out_signature = "s",

1203

path_keyword = 'object_path',

1204

connection_keyword = 'connection')

1205

def Introspect(self, object_path, connection):

1206

"""Overloading of standard D-Bus method.

1207

1208

Inserts annotation tags on methods and signals.

1209

"""

1210

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

1211

connection)

1212

try:

1213

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

1214

1215

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

1216

# Add annotation tags

1217

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

1218

for tag in if_tag.getElementsByTagName(typ):

1219

annots = dict()

1220

for name, prop in (self.

1221

_get_all_dbus_things(typ)):

1222

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

1223

and prop._dbus_interface

1224

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

1225

annots.update(getattr(

1226

prop, "_dbus_annotations", {}))

1227

for name, value in annots.items():

1228

ann_tag = document.createElement(

1229

"annotation")

1230

ann_tag.setAttribute("name", name)

1231

ann_tag.setAttribute("value", value)

1232

tag.appendChild(ann_tag)

1233

# Add interface annotation tags

1234

for annotation, value in dict(

1235

itertools.chain.from_iterable(

1236

annotations().items()

1237

for name, annotations

1238

in self._get_all_dbus_things("interface")

1239

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

1240

)).items():

1241

ann_tag = document.createElement("annotation")

1242

ann_tag.setAttribute("name", annotation)

1243

ann_tag.setAttribute("value", value)

1244

if_tag.appendChild(ann_tag)

1245

# Fix argument name for the Introspect method itself

1246

if (if_tag.getAttribute("name")

1247

== dbus.INTROSPECTABLE_IFACE):

1248

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

1249

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

1250

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

1251

if (arg.getAttribute("direction")

1252

== "out"):

1253

arg.setAttribute("name",

1254

"xml_data")

1255

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

1256

document.unlink()

1257

except (AttributeError, xml.dom.DOMException,

1258

xml.parsers.expat.ExpatError) as error:

1259

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

1260

exc_info=error)

1261

return xmlstring

1262

1263

1264

class DBusObjectWithProperties(DBusObjectWithAnnotations):

1265

"""A D-Bus object with properties.

1266

1267

Classes inheriting from this can use the dbus_service_property

1268

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

1269

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

1270

"""

886

inspect.getmembers(cls,

887

self._is_dbus_thing(thing)))

1271

888

1272

889

def _get_dbus_property(self, interface_name, property_name):

1273

890

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

1274

891

property with the specified name and interface.

1275

892

"""

1276

for cls in self.__class__.__mro__:

1277

for name, value in inspect.getmembers(

1278

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"))):

1279

897

if (value._dbus_name == property_name

1280

898

and value._dbus_interface == interface_name):

1281

899

return value.__get__(self)

1282

900

1283

901

# No such property

1284

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

1285

self.dbus_object_path, interface_name, property_name))

1286

1287

@classmethod

1288

def _get_all_interface_names(cls):

1289

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

1290

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

1291

"_dbus_interface", None)

1292

for x in (inspect.getmro(cls))

1293

for attr in dir(x))

1294

if name is not None)

1295

1296

@dbus.service.method(dbus.PROPERTIES_IFACE,

1297

in_signature="ss",

902

raise DBusPropertyNotFound(self.dbus_object_path + ":"

903

+ interface_name + "."

904

+ property_name)

905

906

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

1298

907

out_signature="v")

1299

908

def Get(self, interface_name, property_name):

1300

909

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

1318

927

# The byte_arrays option is not supported yet on

1319

928

# signatures other than "ay".

1320

929

if prop._dbus_signature != "ay":

1321

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

1322

"'ay' signature {!r}"

1323

.format(prop._dbus_signature))

930

raise ValueError

1324

931

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

1325

932

for byte in value))

1326

933

prop(value)

1327

934

1328

@dbus.service.method(dbus.PROPERTIES_IFACE,

1329

in_signature="s",

935

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

1330

936

out_signature="a{sv}")

1331

937

def GetAll(self, interface_name):

1332

938

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

1347

953

if not hasattr(value, "variant_level"):

1348

954

properties[name] = value

1349

955

continue

1350

properties[name] = type(value)(

1351

value, variant_level = value.variant_level + 1)

956

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

957

value.variant_level+1)

1352

958

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

1353

959

1354

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

1355

def PropertiesChanged(self, interface_name, changed_properties,

1356

invalidated_properties):

1357

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

1358

standard.

1359

"""

1360

pass

1361

1362

960

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1363

961

out_signature="s",

1364

962

path_keyword='object_path',

1368

966

1369

967

Inserts property tags and interface annotation tags.

1370

968

"""

1371

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1372

object_path,

1373

connection)

969

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

970

connection)

1374

971

try:

1375

972

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

1376

1377

973

def make_tag(document, name, prop):

1378

974

e = document.createElement("property")

1379

975

e.setAttribute("name", name)

1380

976

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

1381

977

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

1382

978

return e

1383

1384

979

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

1385

980

# Add property tags

1386

981

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

1389

984

if prop._dbus_interface

1390

985

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

1391

986

if_tag.appendChild(tag)

1392

# Add annotation tags for properties

1393

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

1394

annots = dict()

1395

for name, prop in self._get_all_dbus_things(

1396

"property"):

1397

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

1398

and prop._dbus_interface

1399

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

1400

annots.update(getattr(

1401

prop, "_dbus_annotations", {}))

1402

for name, value in annots.items():

1403

ann_tag = document.createElement(

1404

"annotation")

1405

ann_tag.setAttribute("name", name)

1406

ann_tag.setAttribute("value", value)

1407

tag.appendChild(ann_tag)

987

# Add annotation tags

988

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

989

for tag in if_tag.getElementsByTagName(typ):

990

annots = dict()

991

for name, prop in (self.

992

_get_all_dbus_things(typ)):

993

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

994

and prop._dbus_interface

995

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

996

annots.update(getattr

997

(prop,

998

"_dbus_annotations",

999

{}))

1000

for name, value in annots.iteritems():

1001

ann_tag = document.createElement(

1002

"annotation")

1003

ann_tag.setAttribute("name", name)

1004

ann_tag.setAttribute("value", value)

1005

tag.appendChild(ann_tag)

1006

# Add interface annotation tags

1007

for annotation, value in dict(

1008

itertools.chain.from_iterable(

1009

annotations().iteritems()

1010

for name, annotations in

1011

self._get_all_dbus_things("interface")

1012

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

1013

)).iteritems():

1014

ann_tag = document.createElement("annotation")

1015

ann_tag.setAttribute("name", annotation)

1016

ann_tag.setAttribute("value", value)

1017

if_tag.appendChild(ann_tag)

1408

1018

# Add the names to the return values for the

1409

1019

# "org.freedesktop.DBus.Properties" methods

1410

1020

if (if_tag.getAttribute("name")

1428

1038

exc_info=error)

1429

1039

return xmlstring

1430

1040

1431

try:

1432

dbus.OBJECT_MANAGER_IFACE

1433

except AttributeError:

1434

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

1435

1436

class DBusObjectWithObjectManager(DBusObjectWithAnnotations):

1437

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

1438

1439

Classes inheriting from this exposes the standard

1440

GetManagedObjects call and the InterfacesAdded and

1441

InterfacesRemoved signals on the standard

1442

"org.freedesktop.DBus.ObjectManager" interface.

1443

1444

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

1445

manually.

1446

"""

1447

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

1448

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

1449

def GetManagedObjects(self):

1450

"""This function must be overridden"""

1451

raise NotImplementedError()

1452

1453

@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,

1454

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

1455

def InterfacesAdded(self, object_path, interfaces_and_properties):

1456

pass

1457

1458

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

1459

def InterfacesRemoved(self, object_path, interfaces):

1460

pass

1461

1462

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1463

out_signature = "s",

1464

path_keyword = 'object_path',

1465

connection_keyword = 'connection')

1466

def Introspect(self, object_path, connection):

1467

"""Overloading of standard D-Bus method.

1468

1469

Override return argument name of GetManagedObjects to be

1470

"objpath_interfaces_and_properties"

1471

"""

1472

xmlstring = DBusObjectWithAnnotations.Introspect(self,

1473

object_path,

1474

connection)

1475

try:

1476

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

1477

1478

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

1479

# Fix argument name for the GetManagedObjects method

1480

if (if_tag.getAttribute("name")

1481

== dbus.OBJECT_MANAGER_IFACE):

1482

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

1483

if (cn.getAttribute("name")

1484

== "GetManagedObjects"):

1485

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

1486

if (arg.getAttribute("direction")

1487

== "out"):

1488

arg.setAttribute(

1489

"name",

1490

"objpath_interfaces"

1491

"_and_properties")

1492

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

1493

document.unlink()

1494

except (AttributeError, xml.dom.DOMException,

1495

xml.parsers.expat.ExpatError) as error:

1496

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

1497

exc_info = error)

1498

return xmlstring

1499

1041

1500

1042

def datetime_to_dbus(dt, variant_level=0):

1501

1043

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

1502

1044

if dt is None:

1503

1045

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

1504

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

1046

return dbus.String(dt.isoformat(),

1047

variant_level=variant_level)

1505

1048

1506

1049

1507

1050

def alternate_dbus_interfaces(alt_interface_names, deprecate=True):

1527

1070

(from DBusObjectWithProperties) and interfaces (from the

1528

1071

dbus_interface_annotations decorator).

1529

1072

"""

1530

1531

1073

def wrapper(cls):

1532

1074

for orig_interface_name, alt_interface_name in (

1533

alt_interface_names.items()):

1075

alt_interface_names.iteritems()):

1534

1076

attr = {}

1535

1077

interface_names = set()

1536

1078

# Go though all attributes of the class

1538

1080

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

1539

1081

# with the wrong interface name

1540

1082

if (not hasattr(attribute, "_dbus_interface")

1541

or not attribute._dbus_interface.startswith(

1542

orig_interface_name)):

1083

or not attribute._dbus_interface

1084

.startswith(orig_interface_name)):

1543

1085

continue

1544

1086

# Create an alternate D-Bus interface name based on

1545

1087

# the current name

1546

alt_interface = attribute._dbus_interface.replace(

1547

orig_interface_name, alt_interface_name)

1088

alt_interface = (attribute._dbus_interface

1089

.replace(orig_interface_name,

1090

alt_interface_name))

1548

1091

interface_names.add(alt_interface)

1549

1092

# Is this a D-Bus signal?

1550

1093

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

1551

1094

# Extract the original non-method undecorated

1552

1095

# function by black magic

1553

if sys.version_info.major == 2:

1554

nonmethod_func = (dict(

1096

nonmethod_func = (dict(

1555

1097

zip(attribute.func_code.co_freevars,

1556

attribute.__closure__))

1557

["func"].cell_contents)

1558

else:

1559

nonmethod_func = (dict(

1560

zip(attribute.__code__.co_freevars,

1561

attribute.__closure__))

1562

["func"].cell_contents)

1098

attribute.__closure__))["func"]

1099

.cell_contents)

1563

1100

# Create a new, but exactly alike, function

1564

1101

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

1565

1102

# with the alternate D-Bus interface name

1566

new_function = copy_function(nonmethod_func)

1567

new_function = (dbus.service.signal(

1568

alt_interface,

1569

attribute._dbus_signature)(new_function))

1103

new_function = (dbus.service.signal

1104

(alt_interface,

1105

attribute._dbus_signature)

1106

(types.FunctionType(

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)))

1570

1112

# Copy annotations, if any

1571

1113

try:

1572

new_function._dbus_annotations = dict(

1573

attribute._dbus_annotations)

1114

new_function._dbus_annotations = (

1115

dict(attribute._dbus_annotations))

1574

1116

except AttributeError:

1575

1117

pass

1576

1118

# Define a creator of a function to call both the

1581

1123

"""This function is a scope container to pass

1582

1124

func1 and func2 to the "call_both" function

1583

1125

outside of its arguments"""

1584

1585

@functools.wraps(func2)

1586

1126

def call_both(*args, **kwargs):

1587

1127

"""This function will emit two D-Bus

1588

1128

signals by calling func1 and func2"""

1589

1129

func1(*args, **kwargs)

1590

1130

func2(*args, **kwargs)

1591

# Make wrapper function look like a D-Bus signal

1592

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

1593

if name.startswith("_dbus_"):

1594

setattr(call_both, name, attr)

1595

1596

1131

return call_both

1597

1132

# Create the "call_both" function and add it to

1598

1133

# the class

1603

1138

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

1604

1139

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

1605

1140

# to the class.

1606

attr[attrname] = (

1607

dbus.service.method(

1608

alt_interface,

1609

attribute._dbus_in_signature,

1610

attribute._dbus_out_signature)

1611

(copy_function(attribute)))

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)))

1612

1151

# Copy annotations, if any

1613

1152

try:

1614

attr[attrname]._dbus_annotations = dict(

1615

attribute._dbus_annotations)

1153

attr[attrname]._dbus_annotations = (

1154

dict(attribute._dbus_annotations))

1616

1155

except AttributeError:

1617

1156

pass

1618

1157

# Is this a D-Bus property?

1621

1160

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

1622

1161

# property with the alternate D-Bus interface

1623

1162

# name. Add it to the class.

1624

attr[attrname] = (dbus_service_property(

1625

alt_interface, attribute._dbus_signature,

1626

attribute._dbus_access,

1627

attribute._dbus_get_args_options

1628

["byte_arrays"])

1629

(copy_function(attribute)))

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)))

1630

1176

# Copy annotations, if any

1631

1177

try:

1632

attr[attrname]._dbus_annotations = dict(

1633

attribute._dbus_annotations)

1178

attr[attrname]._dbus_annotations = (

1179

dict(attribute._dbus_annotations))

1634

1180

except AttributeError:

1635

1181

pass

1636

1182

# Is this a D-Bus interface?

1639

1185

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

1640

1186

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

1641

1187

# to the class.

1642

attr[attrname] = (

1643

dbus_interface_annotations(alt_interface)

1644

(copy_function(attribute)))

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)))

1645

1196

if deprecate:

1646

1197

# Deprecate all alternate interfaces

1647

iname="_AlternateDBusNames_interface_annotation{}"

1198

iname="_AlternateDBusNames_interface_annotation{0}"

1648

1199

for interface_name in interface_names:

1649

1650

1200

@dbus_interface_annotations(interface_name)

1651

1201

def func(self):

1652

1202

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

1653

"true" }

1203

"true" }

1654

1204

# Find an unused name

1655

1205

for aname in (iname.format(i)

1656

1206

for i in itertools.count()):

1660

1210

if interface_names:

1661

1211

# Replace the class with a new subclass of it with

1662

1212

# methods, signals, etc. as created above.

1663

if sys.version_info.major == 2:

1664

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

1665

(cls, ), attr)

1666

else:

1667

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

1668

(cls, ), attr)

1213

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

1214

(cls,), attr)

1669

1215

return cls

1670

1671

1216

return wrapper

1672

1217

1673

1218

1674

1219

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

1675

"se.bsnet.fukt.Mandos"})

1220

"se.bsnet.fukt.Mandos"})

1676

1221

class ClientDBus(Client, DBusObjectWithProperties):

1677

1222

"""A Client class using D-Bus

1678

1223

1682

1227

"""

1683

1228

1684

1229

runtime_expansions = (Client.runtime_expansions

1685

+ ("dbus_object_path", ))

1686

1687

_interface = "se.recompile.Mandos.Client"

1230

+ ("dbus_object_path",))

1688

1231

1689

1232

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

1690

1233

1693

1236

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

1694

1237

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

1695

1238

# the D-Bus

1696

client_object_name = str(self.name).translate(

1239

client_object_name = unicode(self.name).translate(

1697

1240

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

1698

1241

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

1699

self.dbus_object_path = dbus.ObjectPath(

1700

"/clients/" + client_object_name)

1242

self.dbus_object_path = (dbus.ObjectPath

1243

("/clients/" + client_object_name))

1701

1244

DBusObjectWithProperties.__init__(self, self.bus,

1702

1245

self.dbus_object_path)

1703

1246

1704

def notifychangeproperty(transform_func, dbus_name,

1705

type_func=lambda x: x,

1706

variant_level=1,

1707

invalidate_only=False,

1708

_interface=_interface):

1247

def notifychangeproperty(transform_func,

1248

dbus_name, type_func=lambda x: x,

1249

variant_level=1):

1709

1250

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

1710

1251

its changes to DBus.

1711

1252

1716

1257

to the D-Bus. Default: no transform

1717

1258

variant_level: D-Bus variant level. Default: 1

1718

1259

"""

1719

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

1720

1260

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

1721

1261

def setter(self, value):

1722

1262

if hasattr(self, "dbus_object_path"):

1723

1263

if (not hasattr(self, attrname) or

1724

1264

type_func(getattr(self, attrname, None))

1725

1265

!= type_func(value)):

1726

if invalidate_only:

1727

self.PropertiesChanged(

1728

_interface, dbus.Dictionary(),

1729

dbus.Array((dbus_name, )))

1730

else:

1731

dbus_value = transform_func(

1732

type_func(value),

1733

variant_level = variant_level)

1734

self.PropertyChanged(dbus.String(dbus_name),

1735

dbus_value)

1736

self.PropertiesChanged(

1737

_interface,

1738

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

1739

dbus_value }),

1740

dbus.Array())

1266

dbus_value = transform_func(type_func(value),

1267

variant_level

1268

=variant_level)

1269

self.PropertyChanged(dbus.String(dbus_name),

1270

dbus_value)

1741

1271

setattr(self, attrname, value)

1742

1272

1743

1273

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

1749

1279

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

1750

1280

last_enabled = notifychangeproperty(datetime_to_dbus,

1751

1281

"LastEnabled")

1752

checker = notifychangeproperty(

1753

dbus.Boolean, "CheckerRunning",

1754

type_func = lambda checker: checker is not None)

1282

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

1283

type_func = lambda checker:

1284

checker is not None)

1755

1285

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1756

1286

"LastCheckedOK")

1757

1287

last_checker_status = notifychangeproperty(dbus.Int16,

1760

1290

datetime_to_dbus, "LastApprovalRequest")

1761

1291

approved_by_default = notifychangeproperty(dbus.Boolean,

1762

1292

"ApprovedByDefault")

1763

approval_delay = notifychangeproperty(

1764

dbus.UInt64, "ApprovalDelay",

1765

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

1293

approval_delay = notifychangeproperty(dbus.UInt64,

1294

"ApprovalDelay",

1295

type_func =

1296

timedelta_to_milliseconds)

1766

1297

approval_duration = notifychangeproperty(

1767

1298

dbus.UInt64, "ApprovalDuration",

1768

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

1299

type_func = timedelta_to_milliseconds)

1769

1300

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

1770

timeout = notifychangeproperty(

1771

dbus.UInt64, "Timeout",

1772

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

1301

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

1302

type_func =

1303

timedelta_to_milliseconds)

1773

1304

extended_timeout = notifychangeproperty(

1774

1305

dbus.UInt64, "ExtendedTimeout",

1775

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

1776

interval = notifychangeproperty(

1777

dbus.UInt64, "Interval",

1778

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

1306

type_func = timedelta_to_milliseconds)

1307

interval = notifychangeproperty(dbus.UInt64,

1308

"Interval",

1309

type_func =

1310

timedelta_to_milliseconds)

1779

1311

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

1780

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

1781

invalidate_only=True)

1782

1312

1783

1313

del notifychangeproperty

1784

1314

1791

1321

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

1792

1322

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

1793

1323

1794

def checker_callback(self, source, condition,

1795

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

1796

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

1797

connection, command, *args,

1798

**kwargs)

1799

exitstatus = self.last_checker_status

1800

if exitstatus >= 0:

1324

def checker_callback(self, pid, condition, command,

1325

*args, **kwargs):

1326

self.checker_callback_tag = None

1327

self.checker = None

1328

if os.WIFEXITED(condition):

1329

exitstatus = os.WEXITSTATUS(condition)

1801

1330

# Emit D-Bus signal

1802

1331

self.CheckerCompleted(dbus.Int16(exitstatus),

1803

# This is specific to GNU libC

1804

dbus.Int64(exitstatus << 8),

1332

dbus.Int64(condition),

1805

1333

dbus.String(command))

1806

1334

else:

1807

1335

# Emit D-Bus signal

1808

1336

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

1809

dbus.Int64(

1810

# This is specific to GNU libC

1811

(exitstatus << 8)

1812

| self.last_checker_signal),

1337

dbus.Int64(condition),

1813

1338

dbus.String(command))

1814

return ret

1339

1340

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

1341

*args, **kwargs)

1815

1342

1816

1343

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

1817

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

1818

1349

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

1819

1350

# Only if new checker process was started

1820

1351

if (self.checker is not None

1829

1360

1830

1361

def approve(self, value=True):

1831

1362

self.approved = value

1832

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

1833

* 1000), self._reset_approved)

1363

gobject.timeout_add(timedelta_to_milliseconds

1364

(self.approval_duration),

1365

self._reset_approved)

1834

1366

self.send_changedstate()

1835

1367

1836

1368

## D-Bus methods, signals & properties

1369

_interface = "se.recompile.Mandos.Client"

1837

1370

1838

1371

## Interfaces

1839

1372

1373

@dbus_interface_annotations(_interface)

1374

def _foo(self):

1375

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

1376

"false"}

1377

1840

1378

## Signals

1841

1379

1842

1380

# CheckerCompleted - signal

1852

1390

pass

1853

1391

1854

1392

# PropertyChanged - signal

1855

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

1856

1393

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

1857

1394

def PropertyChanged(self, property, value):

1858

1395

"D-Bus signal"

1892

1429

self.checked_ok()

1893

1430

1894

1431

# Enable - method

1895

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

1896

1432

@dbus.service.method(_interface)

1897

1433

def Enable(self):

1898

1434

"D-Bus method"

1899

1435

self.enable()

1900

1436

1901

1437

# StartChecker - method

1902

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

1903

1438

@dbus.service.method(_interface)

1904

1439

def StartChecker(self):

1905

1440

"D-Bus method"

1906

1441

self.start_checker()

1907

1442

1908

1443

# Disable - method

1909

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

1910

1444

@dbus.service.method(_interface)

1911

1445

def Disable(self):

1912

1446

"D-Bus method"

1913

1447

self.disable()

1914

1448

1915

1449

# StopChecker - method

1916

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

1917

1450

@dbus.service.method(_interface)

1918

1451

def StopChecker(self):

1919

1452

self.stop_checker()

1926

1459

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

1927

1460

1928

1461

# ApprovedByDefault - property

1929

@dbus_service_property(_interface,

1930

signature="b",

1462

@dbus_service_property(_interface, signature="b",

1931

1463

access="readwrite")

1932

1464

def ApprovedByDefault_dbus_property(self, value=None):

1933

1465

if value is None: # get

1935

1467

self.approved_by_default = bool(value)

1936

1468

1937

1469

# ApprovalDelay - property

1938

@dbus_service_property(_interface,

1939

signature="t",

1470

@dbus_service_property(_interface, signature="t",

1940

1471

access="readwrite")

1941

1472

def ApprovalDelay_dbus_property(self, value=None):

1942

1473

if value is None: # get

1943

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

1944

* 1000)

1474

return dbus.UInt64(self.approval_delay_milliseconds())

1945

1475

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

1946

1476

1947

1477

# ApprovalDuration - property

1948

@dbus_service_property(_interface,

1949

signature="t",

1478

@dbus_service_property(_interface, signature="t",

1950

1479

access="readwrite")

1951

1480

def ApprovalDuration_dbus_property(self, value=None):

1952

1481

if value is None: # get

1953

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

1954

* 1000)

1482

return dbus.UInt64(timedelta_to_milliseconds(

1483

self.approval_duration))

1955

1484

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

1956

1485

1957

1486

# Name - property

1958

@dbus_annotations(

1959

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

1960

1487

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

1961

1488

def Name_dbus_property(self):

1962

1489

return dbus.String(self.name)

1963

1490

1964

1491

# Fingerprint - property

1965

@dbus_annotations(

1966

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

1967

1492

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

1968

1493

def Fingerprint_dbus_property(self):

1969

1494

return dbus.String(self.fingerprint)

1970

1495

1971

1496

# Host - property

1972

@dbus_service_property(_interface,

1973

signature="s",

1497

@dbus_service_property(_interface, signature="s",

1974

1498

access="readwrite")

1975

1499

def Host_dbus_property(self, value=None):

1976

1500

if value is None: # get

1977

1501

return dbus.String(self.host)

1978

self.host = str(value)

1502

self.host = unicode(value)

1979

1503

1980

1504

# Created - property

1981

@dbus_annotations(

1982

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

1983

1505

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

1984

1506

def Created_dbus_property(self):

1985

1507

return datetime_to_dbus(self.created)

1990

1512

return datetime_to_dbus(self.last_enabled)

1991

1513

1992

1514

# Enabled - property

1993

@dbus_service_property(_interface,

1994

signature="b",

1515

@dbus_service_property(_interface, signature="b",

1995

1516

access="readwrite")

1996

1517

def Enabled_dbus_property(self, value=None):

1997

1518

if value is None: # get

2002

1523

self.disable()

2003

1524

2004

1525

# LastCheckedOK - property

2005

@dbus_service_property(_interface,

2006

signature="s",

1526

@dbus_service_property(_interface, signature="s",

2007

1527

access="readwrite")

2008

1528

def LastCheckedOK_dbus_property(self, value=None):

2009

1529

if value is not None:

2012

1532

return datetime_to_dbus(self.last_checked_ok)

2013

1533

2014

1534

# LastCheckerStatus - property

2015

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

1535

@dbus_service_property(_interface, signature="n",

1536

access="read")

2016

1537

def LastCheckerStatus_dbus_property(self):

2017

1538

return dbus.Int16(self.last_checker_status)

2018

1539

2027

1548

return datetime_to_dbus(self.last_approval_request)

2028

1549

2029

1550

# Timeout - property

2030

@dbus_service_property(_interface,

2031

signature="t",

1551

@dbus_service_property(_interface, signature="t",

2032

1552

access="readwrite")

2033

1553

def Timeout_dbus_property(self, value=None):

2034

1554

if value is None: # get

2035

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

1555

return dbus.UInt64(self.timeout_milliseconds())

2036

1556

old_timeout = self.timeout

2037

1557

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

2038

1558

# Reschedule disabling

2046

1566

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

2047

1567

is None):

2048

1568

return

2049

GLib.source_remove(self.disable_initiator_tag)

2050

self.disable_initiator_tag = GLib.timeout_add(

2051

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

2052

self.disable)

1569

gobject.source_remove(self.disable_initiator_tag)

1570

self.disable_initiator_tag = (

1571

gobject.timeout_add(

1572

timedelta_to_milliseconds(self.expires - now),

1573

self.disable))

2053

1574

2054

1575

# ExtendedTimeout - property

2055

@dbus_service_property(_interface,

2056

signature="t",

1576

@dbus_service_property(_interface, signature="t",

2057

1577

access="readwrite")

2058

1578

def ExtendedTimeout_dbus_property(self, value=None):

2059

1579

if value is None: # get

2060

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

2061

* 1000)

1580

return dbus.UInt64(self.extended_timeout_milliseconds())

2062

1581

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

2063

1582

2064

1583

# Interval - property

2065

@dbus_service_property(_interface,

2066

signature="t",

1584

@dbus_service_property(_interface, signature="t",

2067

1585

access="readwrite")

2068

1586

def Interval_dbus_property(self, value=None):

2069

1587

if value is None: # get

2070

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

1588

return dbus.UInt64(self.interval_milliseconds())

2071

1589

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

2072

1590

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

2073

1591

return

2074

1592

if self.enabled:

2075

1593

# Reschedule checker run

2076

GLib.source_remove(self.checker_initiator_tag)

2077

self.checker_initiator_tag = GLib.timeout_add(

2078

value, self.start_checker)

2079

self.start_checker() # Start one now, too

1594

gobject.source_remove(self.checker_initiator_tag)

1595

self.checker_initiator_tag = (gobject.timeout_add

1596

(value, self.start_checker))

1597

self.start_checker() # Start one now, too

2080

1598

2081

1599

# Checker - property

2082

@dbus_service_property(_interface,

2083

signature="s",

1600

@dbus_service_property(_interface, signature="s",

2084

1601

access="readwrite")

2085

1602

def Checker_dbus_property(self, value=None):

2086

1603

if value is None: # get

2087

1604

return dbus.String(self.checker_command)

2088

self.checker_command = str(value)

1605

self.checker_command = unicode(value)

2089

1606

2090

1607

# CheckerRunning - property

2091

@dbus_service_property(_interface,

2092

signature="b",

1608

@dbus_service_property(_interface, signature="b",

2093

1609

access="readwrite")

2094

1610

def CheckerRunning_dbus_property(self, value=None):

2095

1611

if value is None: # get

2100

1616

self.stop_checker()

2101

1617

2102

1618

# ObjectPath - property

2103

@dbus_annotations(

2104

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

2105

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

2106

1619

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

2107

1620

def ObjectPath_dbus_property(self):

2108

1621

return self.dbus_object_path # is already a dbus.ObjectPath

2109

1622

2110

1623

# Secret = property

2111

@dbus_annotations(

2112

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

2113

"invalidates"})

2114

@dbus_service_property(_interface,

2115

signature="ay",

2116

access="write",

2117

byte_arrays=True)

1624

@dbus_service_property(_interface, signature="ay",

1625

access="write", byte_arrays=True)

2118

1626

def Secret_dbus_property(self, value):

2119

self.secret = bytes(value)

1627

self.secret = str(value)

2120

1628

2121

1629

del _interface

2122

1630

2126

1634

self._pipe = child_pipe

2127

1635

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

2128

1636

if not self._pipe.recv():

2129

raise KeyError(fpr)

1637

raise KeyError()

2130

1638

2131

1639

def __getattribute__(self, name):

2132

1640

if name == '_pipe':

2136

1644

if data[0] == 'data':

2137

1645

return data[1]

2138

1646

if data[0] == 'function':

2139

2140

1647

def func(*args, **kwargs):

2141

1648

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

2142

1649

return self._pipe.recv()[1]

2143

2144

1650

return func

2145

1651

2146

1652

def __setattr__(self, name, value):

2158

1664

def handle(self):

2159

1665

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

2160

1666

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

2161

str(self.client_address))

1667

unicode(self.client_address))

2162

1668

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

2163

1669

self.server.child_pipe.fileno())

2164

1670

2165

session = gnutls.ClientSession(self.request)

1671

session = (gnutls.connection

1672

.ClientSession(self.request,

1673

gnutls.connection

1674

.X509Credentials()))

1675

1676

# Note: gnutls.connection.X509Credentials is really a

1677

# generic GnuTLS certificate credentials object so long as

1678

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

1679

# here despite using OpenPGP certificates.

2166

1680

2167

1681

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

2168

1682

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

2172

1686

priority = self.server.gnutls_priority

2173

1687

if priority is None:

2174

1688

priority = "NORMAL"

2175

gnutls.priority_set_direct(session._c_object, priority,

2176

None)

1689

(gnutls.library.functions

1690

.gnutls_priority_set_direct(session._c_object,

1691

priority, None))

2177

1692

2178

1693

# Start communication using the Mandos protocol

2179

1694

# Get protocol number

2181

1696

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

2182

1697

try:

2183

1698

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

2184

raise RuntimeError(line)

1699

raise RuntimeError

2185

1700

except (ValueError, IndexError, RuntimeError) as error:

2186

1701

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

2187

1702

return

2189

1704

# Start GnuTLS connection

2190

1705

try:

2191

1706

session.handshake()

2192

except gnutls.Error as error:

1707

except gnutls.errors.GNUTLSError as error:

2193

1708

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

2194

1709

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

2195

1710

# established. Just abandon the request.

2199

1714

approval_required = False

2200

1715

try:

2201

1716

try:

2202

fpr = self.fingerprint(

2203

self.peer_certificate(session))

2204

except (TypeError, gnutls.Error) as error:

1717

fpr = self.fingerprint(self.peer_certificate

1718

(session))

1719

except (TypeError,

1720

gnutls.errors.GNUTLSError) as error:

2205

1721

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

2206

1722

return

2207

1723

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

2220

1736

while True:

2221

1737

if not client.enabled:

2222

1738

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

2223

client.name)

1739

client.name)

2224

1740

if self.server.use_dbus:

2225

1741

# Emit D-Bus signal

2226

1742

client.Rejected("Disabled")

2235

1751

if self.server.use_dbus:

2236

1752

# Emit D-Bus signal

2237

1753

client.NeedApproval(

2238

client.approval_delay.total_seconds()

2239

* 1000, client.approved_by_default)

1754

client.approval_delay_milliseconds(),

1755

client.approved_by_default)

2240

1756

else:

2241

1757

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

2242

1758

client.name)

2248

1764

#wait until timeout or approved

2249

1765

time = datetime.datetime.now()

2250

1766

client.changedstate.acquire()

2251

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

1767

client.changedstate.wait(

1768

float(timedelta_to_milliseconds(delay)

1769

/ 1000))

2252

1770

client.changedstate.release()

2253

1771

time2 = datetime.datetime.now()

2254

1772

if (time2 - time) >= delay:

2265

1783

else:

2266

1784

delay -= time2 - time

2267

1785

2268

try:

2269

session.send(client.secret)

2270

except gnutls.Error as error:

2271

logger.warning("gnutls send failed",

2272

exc_info = error)

2273

return

1786

sent_size = 0

1787

while sent_size < len(client.secret):

1788

try:

1789

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

1790

except gnutls.errors.GNUTLSError as error:

1791

logger.warning("gnutls send failed",

1792

exc_info=error)

1793

return

1794

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

1795

sent, len(client.secret)

1796

- (sent_size + sent))

1797

sent_size += sent

2274

1798

2275

1799

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

2276

1800

# bump the timeout using extended_timeout

2284

1808

client.approvals_pending -= 1

2285

1809

try:

2286

1810

session.bye()

2287

except gnutls.Error as error:

1811

except gnutls.errors.GNUTLSError as error:

2288

1812

logger.warning("GnuTLS bye failed",

2289

1813

exc_info=error)

2290

1814

2292

1816

def peer_certificate(session):

2293

1817

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

2294

1818

# If not an OpenPGP certificate...

2295

if (gnutls.certificate_type_get(session._c_object)

2296

!= gnutls.CRT_OPENPGP):

2297

# ...return invalid data

2298

return b""

1819

if (gnutls.library.functions

1820

.gnutls_certificate_type_get(session._c_object)

1821

!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):

1822

# ...do the normal thing

1823

return session.peer_certificate

2299

1824

list_size = ctypes.c_uint(1)

2300

cert_list = (gnutls.certificate_get_peers

1825

cert_list = (gnutls.library.functions

1826

.gnutls_certificate_get_peers

2301

1827

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

2302

1828

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

2303

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

1829

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

1830

" certificate")

2304

1831

if list_size.value == 0:

2305

1832

return None

2306

1833

cert = cert_list[0]

2310

1837

def fingerprint(openpgp):

2311

1838

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

2312

1839

# New GnuTLS "datum" with the OpenPGP public key

2313

datum = gnutls.datum_t(

2314

ctypes.cast(ctypes.c_char_p(openpgp),

2315

ctypes.POINTER(ctypes.c_ubyte)),

2316

ctypes.c_uint(len(openpgp)))

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))))

2317

1845

# New empty GnuTLS certificate

2318

crt = gnutls.openpgp_crt_t()

2319

gnutls.openpgp_crt_init(ctypes.byref(crt))

1846

crt = gnutls.library.types.gnutls_openpgp_crt_t()

1847

(gnutls.library.functions

1848

.gnutls_openpgp_crt_init(ctypes.byref(crt)))

2320

1849

# Import the OpenPGP public key into the certificate

2321

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

2322

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))

2323

1854

# Verify the self signature in the key

2324

1855

crtverify = ctypes.c_uint()

2325

gnutls.openpgp_crt_verify_self(crt, 0,

2326

ctypes.byref(crtverify))

1856

(gnutls.library.functions

1857

.gnutls_openpgp_crt_verify_self(crt, 0,

1858

ctypes.byref(crtverify)))

2327

1859

if crtverify.value != 0:

2328

gnutls.openpgp_crt_deinit(crt)

2329

raise gnutls.CertificateSecurityError("Verify failed")

1860

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1861

raise (gnutls.errors.CertificateSecurityError

1862

("Verify failed"))

2330

1863

# New buffer for the fingerprint

2331

1864

buf = ctypes.create_string_buffer(20)

2332

1865

buf_len = ctypes.c_size_t()

2333

1866

# Get the fingerprint from the certificate into the buffer

2334

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

2335

ctypes.byref(buf_len))

1867

(gnutls.library.functions

1868

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

1869

ctypes.byref(buf_len)))

2336

1870

# Deinit the certificate

2337

gnutls.openpgp_crt_deinit(crt)

1871

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

2338

1872

# Convert the buffer to a Python bytestring

2339

1873

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

2340

1874

# Convert the bytestring to hexadecimal notation

2344

1878

2345

1879

class MultiprocessingMixIn(object):

2346

1880

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

2347

2348

1881

def sub_process_main(self, request, address):

2349

1882

try:

2350

1883

self.finish_request(request, address)

2362

1895

2363

1896

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

2364

1897

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

2365

2366

1898

def process_request(self, request, client_address):

2367

1899

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

2368

1900

2377

1909

2378

1910

def add_pipe(self, parent_pipe, proc):

2379

1911

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

2380

raise NotImplementedError()

1912

raise NotImplementedError

2381

1913

2382

1914

2383

1915

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

2389

1921

interface: None or a network interface name (string)

2390

1922

use_ipv6: Boolean; to use IPv6 or not

2391

1923

"""

2392

2393

1924

def __init__(self, server_address, RequestHandlerClass,

2394

interface=None,

2395

use_ipv6=True,

2396

socketfd=None):

1925

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

2397

1926

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

2398

1927

creating a new one with socket.socket().

2399

1928

"""

2440

1969

self.interface)

2441

1970

else:

2442

1971

try:

2443

self.socket.setsockopt(

2444

socket.SOL_SOCKET, SO_BINDTODEVICE,

2445

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

1972

self.socket.setsockopt(socket.SOL_SOCKET,

1973

SO_BINDTODEVICE,

1974

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

2446

1975

except socket.error as error:

2447

1976

if error.errno == errno.EPERM:

2448

1977

logger.error("No permission to bind to"

2466

1995

self.server_address = (any_address,

2467

1996

self.server_address[1])

2468

1997

elif not self.server_address[1]:

2469

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

1998

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

1999

0)

2470

2000

# if self.interface:

2471

2001

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

2472

2002

# 0, # port

2484

2014

gnutls_priority GnuTLS priority string

2485

2015

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

2486

2016

2487

Assumes a GLib.MainLoop event loop.

2017

Assumes a gobject.MainLoop event loop.

2488

2018

"""

2489

2490

2019

def __init__(self, server_address, RequestHandlerClass,

2491

interface=None,

2492

use_ipv6=True,

2493

clients=None,

2494

gnutls_priority=None,

2495

use_dbus=True,

2496

socketfd=None):

2020

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

2021

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

2497

2022

self.enabled = False

2498

2023

self.clients = clients

2499

2024

if self.clients is None:

2505

2030

interface = interface,

2506

2031

use_ipv6 = use_ipv6,

2507

2032

socketfd = socketfd)

2508

2509

2033

def server_activate(self):

2510

2034

if self.enabled:

2511

2035

return socketserver.TCPServer.server_activate(self)

2515

2039

2516

2040

def add_pipe(self, parent_pipe, proc):

2517

2041

# Call "handle_ipc" for both data and EOF events

2518

GLib.io_add_watch(

2519

parent_pipe.fileno(),

2520

GLib.IO_IN | GLib.IO_HUP,

2521

functools.partial(self.handle_ipc,

2522

parent_pipe = parent_pipe,

2523

proc = proc))

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))

2524

2048

2525

def handle_ipc(self, source, condition,

2526

parent_pipe=None,

2527

proc = None,

2528

client_object=None):

2049

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

2050

proc = None, client_object=None):

2529

2051

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

2530

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

2052

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

2531

2053

# Wait for other process to exit

2532

2054

proc.join()

2533

2055

return False

2540

2062

fpr = request[1]

2541

2063

address = request[2]

2542

2064

2543

for c in self.clients.values():

2065

for c in self.clients.itervalues():

2544

2066

if c.fingerprint == fpr:

2545

2067

client = c

2546

2068

break

2554

2076

parent_pipe.send(False)

2555

2077

return False

2556

2078

2557

GLib.io_add_watch(

2558

parent_pipe.fileno(),

2559

GLib.IO_IN | GLib.IO_HUP,

2560

functools.partial(self.handle_ipc,

2561

parent_pipe = parent_pipe,

2562

proc = proc,

2563

client_object = client))

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))

2564

2087

parent_pipe.send(True)

2565

2088

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

2566

2089

# same fileno

2572

2095

2573

2096

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

2574

2097

funcname)(*args,

2575

**kwargs)))

2098

**kwargs)))

2576

2099

2577

2100

if command == 'getattr':

2578

2101

attrname = request[1]

2579

if isinstance(client_object.__getattribute__(attrname),

2580

collections.Callable):

2581

parent_pipe.send(('function', ))

2102

if callable(client_object.__getattribute__(attrname)):

2103

parent_pipe.send(('function',))

2582

2104

else:

2583

parent_pipe.send((

2584

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

2105

parent_pipe.send(('data', client_object

2106

.__getattribute__(attrname)))

2585

2107

2586

2108

if command == 'setattr':

2587

2109

attrname = request[1]

2618

2140

# avoid excessive use of external libraries.

2619

2141

2620

2142

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

2621

Token = collections.namedtuple("Token", (

2622

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

2623

# a "group" containing digits

2624

"value", # datetime.timedelta or None

2625

"followers")) # Tokens valid after this token

2143

Token = collections.namedtuple("Token",

2144

("regexp", # To match token; if

2145

# "value" is not None,

2146

# must have a "group"

2147

# containing digits

2148

"value", # datetime.timedelta or

2149

# None

2150

"followers")) # Tokens valid after

2151

# this token

2626

2152

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

2627

2153

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

2628

2154

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

2629

2155

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

2630

2156

datetime.timedelta(seconds=1),

2631

frozenset((token_end, )))

2157

frozenset((token_end,)))

2632

2158

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

2633

2159

datetime.timedelta(minutes=1),

2634

2160

frozenset((token_second, token_end)))

2650

2176

frozenset((token_month, token_end)))

2651

2177

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

2652

2178

datetime.timedelta(weeks=1),

2653

frozenset((token_end, )))

2179

frozenset((token_end,)))

2654

2180

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

2655

2181

frozenset((token_year, token_month,

2656

2182

token_day, token_time,

2657

token_week)))

2183

token_week))),

2658

2184

# Define starting values

2659

2185

value = datetime.timedelta() # Value so far

2660

2186

found_token = None

2661

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

2187

followers = frozenset(token_duration,) # Following valid tokens

2662

2188

s = duration # String left to parse

2663

2189

# Loop until end token is found

2664

2190

while found_token is not token_end:

2681

2207

break

2682

2208

else:

2683

2209

# No currently valid tokens were found

2684

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

2685

.format(duration))

2210

raise ValueError("Invalid RFC 3339 duration")

2686

2211

# End token found

2687

2212

return value

2688

2213

2712

2237

timevalue = datetime.timedelta(0)

2713

2238

for s in interval.split():

2714

2239

try:

2715

suffix = s[-1]

2240

suffix = unicode(s[-1])

2716

2241

value = int(s[:-1])

2717

2242

if suffix == "d":

2718

2243

delta = datetime.timedelta(value)

2725

2250

elif suffix == "w":

2726

2251

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

2727

2252

else:

2728

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

2729

except IndexError as e:

2253

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

2254

.format(suffix))

2255

except (ValueError, IndexError) as e:

2730

2256

raise ValueError(*(e.args))

2731

2257

timevalue += delta

2732

2258

return timevalue

2748

2274

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

2749

2275

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

2750

2276

raise OSError(errno.ENODEV,

2751

"{} not a character device"

2277

"{0} not a character device"

2752

2278

.format(os.devnull))

2753

2279

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

2754

2280

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

2764

2290

2765

2291

parser = argparse.ArgumentParser()

2766

2292

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

2767

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

2293

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

2768

2294

help="show version number and exit")

2769

2295

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

2770

2296

help="Bind to interface IF")

2803

2329

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

2804

2330

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

2805

2331

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

2806

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

2807

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

2808

default=None)

2809

2332

2810

2333

options = parser.parse_args()

2811

2334

2812

2335

if options.check:

2813

2336

import doctest

2814

fail_count, test_count = doctest.testmod()

2815

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

2337

doctest.testmod()

2338

sys.exit()

2816

2339

2817

2340

# Default values for config file for server-global settings

2818

2341

server_defaults = { "interface": "",

2820

2343

"port": "",

2821

2344

"debug": "False",

2822

2345

"priority":

2823

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

2824

":+SIGN-DSA-SHA256",

2346

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

2825

2347

"servicename": "Mandos",

2826

2348

"use_dbus": "True",

2827

2349

"use_ipv6": "True",

2830

2352

"socket": "",

2831

2353

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

2832

2354

"foreground": "False",

2833

"zeroconf": "True",

2834

}

2355

}

2835

2356

2836

2357

# Parse config file for server-global settings

2837

2358

server_config = configparser.SafeConfigParser(server_defaults)

2838

2359

del server_defaults

2839

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

2360

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

2361

"mandos.conf"))

2840

2362

# Convert the SafeConfigParser object to a dict

2841

2363

server_settings = server_config.defaults()

2842

2364

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

2860

2382

# Override the settings from the config file with command line

2861

2383

# options, if set.

2862

2384

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

2863

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

2864

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

2865

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

2385

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

2386

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

2387

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

2866

2388

value = getattr(options, option)

2867

2389

if value is not None:

2868

2390

server_settings[option] = value

2869

2391

del options

2870

2392

# Force all strings to be unicode

2871

2393

for option in server_settings.keys():

2872

if isinstance(server_settings[option], bytes):

2873

server_settings[option] = (server_settings[option]

2874

.decode("utf-8"))

2394

if type(server_settings[option]) is str:

2395

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

2875

2396

# Force all boolean options to be boolean

2876

2397

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

2877

"foreground", "zeroconf"):

2398

"foreground"):

2878

2399

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

2879

2400

# Debug implies foreground

2880

2401

if server_settings["debug"]:

2883

2404

2884

2405

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

2885

2406

2886

if (not server_settings["zeroconf"]

2887

and not (server_settings["port"]

2888

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

2889

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

2890

2891

2407

# For convenience

2892

2408

debug = server_settings["debug"]

2893

2409

debuglevel = server_settings["debuglevel"]

2896

2412

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

2897

2413

stored_state_file)

2898

2414

foreground = server_settings["foreground"]

2899

zeroconf = server_settings["zeroconf"]

2900

2415

2901

2416

if debug:

2902

2417

initlogger(debug, logging.DEBUG)

2908

2423

initlogger(debug, level)

2909

2424

2910

2425

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

2911

syslogger.setFormatter(

2912

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

2913

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

2914

server_settings["servicename"])))

2426

syslogger.setFormatter(logging.Formatter

2427

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

2428

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

2429

.format(server_settings

2430

["servicename"])))

2915

2431

2916

2432

# Parse config file with clients

2917

2433

client_config = configparser.SafeConfigParser(Client

2922

2438

global mandos_dbus_service

2923

2439

mandos_dbus_service = None

2924

2440

2925

socketfd = None

2926

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

2927

socketfd = server_settings["socket"]

2928

tcp_server = MandosServer(

2929

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

2930

ClientHandler,

2931

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

2932

use_ipv6=use_ipv6,

2933

gnutls_priority=server_settings["priority"],

2934

use_dbus=use_dbus,

2935

socketfd=socketfd)

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))

2936

2452

if not foreground:

2937

2453

pidfilename = "/run/mandos.pid"

2938

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

2939

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

2940

2454

pidfile = None

2941

2455

try:

2942

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

2456

pidfile = open(pidfilename, "w")

2943

2457

except IOError as e:

2944

2458

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

2945

2459

exc_info=e)

2946

2460

2947

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

2948

("mandos", "mandos"),

2949

("nobody", "nogroup")):

2461

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

2950

2462

try:

2951

2463

uid = pwd.getpwnam(name).pw_uid

2952

gid = pwd.getpwnam(group).pw_gid

2464

gid = pwd.getpwnam(name).pw_gid

2953

2465

break

2954

2466

except KeyError:

2955

2467

continue

2959

2471

try:

2960

2472

os.setgid(gid)

2961

2473

os.setuid(uid)

2962

if debug:

2963

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

2964

gid))

2965

2474

except OSError as error:

2966

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

2967

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

2968

2475

if error.errno != errno.EPERM:

2969

raise

2476

raise error

2970

2477

2971

2478

if debug:

2972

2479

# Enable all possible GnuTLS debugging

2973

2480

2974

2481

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

2975

2482

# - GnuTLS manual

2976

gnutls.global_set_log_level(11)

2483

gnutls.library.functions.gnutls_global_set_log_level(11)

2977

2484

2978

@gnutls.log_func

2485

@gnutls.library.types.gnutls_log_func

2979

2486

def debug_gnutls(level, string):

2980

2487

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

2981

2488

2982

gnutls.global_set_log_function(debug_gnutls)

2489

(gnutls.library.functions

2490

.gnutls_global_set_log_function(debug_gnutls))

2983

2491

2984

2492

# Redirect stdin so all checkers get /dev/null

2985

2493

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

2992

2500

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

2993

2501

daemon()

2994

2502

2995

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

2996

# to inform GLib that threads will be used.

2997

GLib.threads_init()

2503

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

2504

# need to inform gobject that threads will be used.

2505

gobject.threads_init()

2998

2506

2999

2507

global main_loop

3000

2508

# From the Avahi example code

3001

2509

DBusGMainLoop(set_as_default=True)

3002

main_loop = GLib.MainLoop()

2510

main_loop = gobject.MainLoop()

3003

2511

bus = dbus.SystemBus()

3004

2512

# End of Avahi example code

3005

2513

if use_dbus:

3006

2514

try:

3007

2515

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

3008

bus,

3009

do_not_queue=True)

3010

old_bus_name = dbus.service.BusName(

3011

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

3012

do_not_queue=True)

3013

except dbus.exceptions.DBusException as e:

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:

3014

2521

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

3015

2522

use_dbus = False

3016

2523

server_settings["use_dbus"] = False

3017

2524

tcp_server.use_dbus = False

3018

if zeroconf:

3019

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

3020

service = AvahiServiceToSyslog(

3021

name = server_settings["servicename"],

3022

servicetype = "_mandos._tcp",

3023

protocol = protocol,

3024

bus = bus)

3025

if server_settings["interface"]:

3026

service.interface = if_nametoindex(

3027

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

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"])))

3028

2533

3029

2534

global multiprocessing_manager

3030

2535

multiprocessing_manager = multiprocessing.Manager()

3049

2554

if server_settings["restore"]:

3050

2555

try:

3051

2556

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

3052

if sys.version_info.major == 2:

3053

clients_data, old_client_settings = pickle.load(

3054

stored_state)

3055

else:

3056

bytes_clients_data, bytes_old_client_settings = (

3057

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

3058

### Fix bytes to strings

3059

## clients_data

3060

# .keys()

3061

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

3062

if isinstance(key, bytes)

3063

else key): value

3064

for key, value in

3065

bytes_clients_data.items() }

3066

del bytes_clients_data

3067

for key in clients_data:

3068

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

3069

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

3070

for k, v in

3071

clients_data[key].items() }

3072

clients_data[key] = value

3073

# .client_structure

3074

value["client_structure"] = [

3075

(s.decode("utf-8")

3076

if isinstance(s, bytes)

3077

else s) for s in

3078

value["client_structure"] ]

3079

# .name & .host

3080

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

3081

if isinstance(value[k], bytes):

3082

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

3083

## old_client_settings

3084

# .keys()

3085

old_client_settings = {

3086

(key.decode("utf-8")

3087

if isinstance(key, bytes)

3088

else key): value

3089

for key, value in

3090

bytes_old_client_settings.items() }

3091

del bytes_old_client_settings

3092

# .host

3093

for value in old_client_settings.values():

3094

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

3095

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

3096

.decode("utf-8"))

2557

clients_data, old_client_settings = (pickle.load

2558

(stored_state))

3097

2559

os.remove(stored_state_path)

3098

2560

except IOError as e:

3099

2561

if e.errno == errno.ENOENT:

3100

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

3101

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

2562

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

2563

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

3102

2564

else:

3103

2565

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

3104

2566

exc_info=e)

3105

2567

raise

3106

2568

except EOFError as e:

3107

2569

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

3108

"EOFError:",

3109

exc_info=e)

2570

"EOFError:", exc_info=e)

3110

2571

3111

2572

with PGPEngine() as pgp:

3112

for client_name, client in clients_data.items():

2573

for client_name, client in clients_data.iteritems():

3113

2574

# Skip removed clients

3114

2575

if client_name not in client_settings:

3115

2576

continue

3124

2585

# For each value in new config, check if it

3125

2586

# differs from the old config value (Except for

3126

2587

# the "secret" attribute)

3127

if (name != "secret"

3128

and (value !=

3129

old_client_settings[client_name][name])):

2588

if (name != "secret" and

2589

value != old_client_settings[client_name]

2590

[name]):

3130

2591

client[name] = value

3131

2592

except KeyError:

3132

2593

pass

3133

2594

3134

2595

# Clients who has passed its expire date can still be

3135

# enabled if its last checker was successful. A Client

2596

# enabled if its last checker was successful. Clients

3136

2597

# whose checker succeeded before we stored its state is

3137

2598

# assumed to have successfully run all checkers during

3138

2599

# downtime.

3140

2601

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

3141

2602

if not client["last_checked_ok"]:

3142

2603

logger.warning(

3143

"disabling client {} - Client never "

3144

"performed a successful checker".format(

3145

client_name))

2604

"disabling client {0} - Client never "

2605

"performed a successful checker"

2606

.format(client_name))

3146

2607

client["enabled"] = False

3147

2608

elif client["last_checker_status"] != 0:

3148

2609

logger.warning(

3149

"disabling client {} - Client last"

3150

" checker failed with error code"

3151

" {}".format(

3152

client_name,

3153

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"]))

3154

2614

client["enabled"] = False

3155

2615

else:

3156

client["expires"] = (

3157

datetime.datetime.utcnow()

3158

+ client["timeout"])

2616

client["expires"] = (datetime.datetime

2617

.utcnow()

2618

+ client["timeout"])

3159

2619

logger.debug("Last checker succeeded,"

3160

" keeping {} enabled".format(

3161

client_name))

2620

" keeping {0} enabled"

2621

.format(client_name))

3162

2622

try:

3163

client["secret"] = pgp.decrypt(

3164

client["encrypted_secret"],

3165

client_settings[client_name]["secret"])

2623

client["secret"] = (

2624

pgp.decrypt(client["encrypted_secret"],

2625

client_settings[client_name]

2626

["secret"]))

3166

2627

except PGPError:

3167

2628

# If decryption fails, we use secret from new settings

3168

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

3169

client_name))

3170

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

3171

["secret"])

2629

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

2630

.format(client_name))

2631

client["secret"] = (

2632

client_settings[client_name]["secret"])

3172

2633

3173

2634

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

3174

2635

for client_name in (set(old_client_settings)

3179

2640

clients_data[client_name] = client_settings[client_name]

3180

2641

3181

2642

# Create all client objects

3182

for client_name, client in clients_data.items():

2643

for client_name, client in clients_data.iteritems():

3183

2644

tcp_server.clients[client_name] = client_class(

3184

name = client_name,

3185

settings = client,

2645

name = client_name, settings = client,

3186

2646

server_settings = server_settings)

3187

2647

3188

2648

if not tcp_server.clients:

3190

2650

3191

2651

if not foreground:

3192

2652

if pidfile is not None:

3193

pid = os.getpid()

3194

2653

try:

3195

2654

with pidfile:

3196

print(pid, file=pidfile)

2655

pid = os.getpid()

2656

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

3197

2657

except IOError:

3198

2658

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

3199

2659

pidfilename, pid)

3200

2660

del pidfile

3201

2661

del pidfilename

3202

2662

3203

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

3204

GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,

3205

lambda: main_loop.quit() and False)

2663

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

2664

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

3206

2665

3207

2666

if use_dbus:

3208

3209

@alternate_dbus_interfaces(

3210

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

3211

class MandosDBusService(DBusObjectWithObjectManager):

2667

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

2668

"se.bsnet.fukt.Mandos"})

2669

class MandosDBusService(DBusObjectWithProperties):

3212

2670

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

3213

3214

2671

def __init__(self):

3215

2672

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

3216

3217

2673

_interface = "se.recompile.Mandos"

3218

2674

2675

@dbus_interface_annotations(_interface)

2676

def _foo(self):

2677

return { "org.freedesktop.DBus.Property"

2678

".EmitsChangedSignal":

2679

"false"}

2680

3219

2681

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

3220

2682

def ClientAdded(self, objpath):

3221

2683

"D-Bus signal"

3226

2688

"D-Bus signal"

3227

2689

pass

3228

2690

3229

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

3230

"true"})

3231

2691

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

3232

2692

def ClientRemoved(self, objpath, name):

3233

2693

"D-Bus signal"

3234

2694

pass

3235

2695

3236

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

3237

"true"})

3238

2696

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

3239

2697

def GetAllClients(self):

3240

2698

"D-Bus method"

3241

return dbus.Array(c.dbus_object_path for c in

3242

tcp_server.clients.values())

2699

return dbus.Array(c.dbus_object_path

2700

for c in

2701

tcp_server.clients.itervalues())

3243

2702

3244

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

3245

"true"})

3246

2703

@dbus.service.method(_interface,

3247

2704

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

3248

2705

def GetAllClientsWithProperties(self):

3249

2706

"D-Bus method"

3250

2707

return dbus.Dictionary(

3251

{ c.dbus_object_path: c.GetAll(

3252

"se.recompile.Mandos.Client")

3253

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

2708

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

2709

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

3254

2710

signature="oa{sv}")

3255

2711

3256

2712

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

3257

2713

def RemoveClient(self, object_path):

3258

2714

"D-Bus method"

3259

for c in tcp_server.clients.values():

2715

for c in tcp_server.clients.itervalues():

3260

2716

if c.dbus_object_path == object_path:

3261

2717

del tcp_server.clients[c.name]

3262

2718

c.remove_from_connection()

3263

# Don't signal the disabling

2719

# Don't signal anything except ClientRemoved

3264

2720

c.disable(quiet=True)

3265

# Emit D-Bus signal for removal

3266

self.client_removed_signal(c)

2721

# Emit D-Bus signal

2722

self.ClientRemoved(object_path, c.name)

3267

2723

return

3268

2724

raise KeyError(object_path)

3269

2725

3270

2726

del _interface

3271

3272

@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,

3273

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

3274

def GetManagedObjects(self):

3275

"""D-Bus method"""

3276

return dbus.Dictionary(

3277

{ client.dbus_object_path:

3278

dbus.Dictionary(

3279

{ interface: client.GetAll(interface)

3280

for interface in

3281

client._get_all_interface_names()})

3282

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

3283

3284

def client_added_signal(self, client):

3285

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

3286

if use_dbus:

3287

# New standard signal

3288

self.InterfacesAdded(

3289

client.dbus_object_path,

3290

dbus.Dictionary(

3291

{ interface: client.GetAll(interface)

3292

for interface in

3293

client._get_all_interface_names()}))

3294

# Old signal

3295

self.ClientAdded(client.dbus_object_path)

3296

3297

def client_removed_signal(self, client):

3298

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

3299

if use_dbus:

3300

# New standard signal

3301

self.InterfacesRemoved(

3302

client.dbus_object_path,

3303

client._get_all_interface_names())

3304

# Old signal

3305

self.ClientRemoved(client.dbus_object_path,

3306

client.name)

3307

2727

3308

2728

mandos_dbus_service = MandosDBusService()

3309

2729

3310

2730

def cleanup():

3311

2731

"Cleanup function; run on exit"

3312

if zeroconf:

3313

service.cleanup()

2732

service.cleanup()

3314

2733

3315

2734

multiprocessing.active_children()

3316

2735

wnull.close()

3322

2741

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

3323

2742

clients = {}

3324

2743

with PGPEngine() as pgp:

3325

for client in tcp_server.clients.values():

2744

for client in tcp_server.clients.itervalues():

3326

2745

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

3327

2746

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

3328

2747

key)

3330

2749

3331

2750

# A list of attributes that can not be pickled

3332

2751

# + secret.

3333

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

3334

"checker", "server_settings" }

3335

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

3336

.Object):

2752

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

2753

"checker", "server_settings"))

2754

for name, typ in (inspect.getmembers

2755

(dbus.service.Object)):

3337

2756

exclude.add(name)

3338

2757

3339

2758

client_dict["encrypted_secret"] = (client

3346

2765

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

3347

2766

3348

2767

try:

3349

with tempfile.NamedTemporaryFile(

3350

mode='wb',

3351

suffix=".pickle",

3352

prefix='clients-',

3353

dir=os.path.dirname(stored_state_path),

3354

delete=False) as stored_state:

3355

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

3356

protocol = 2)

3357

tempname = stored_state.name

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:

2772

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

2773

tempname=stored_state.name

3358

2774

os.rename(tempname, stored_state_path)

3359

2775

except (IOError, OSError) as e:

3360

2776

if not debug:

3363

2779

except NameError:

3364

2780

pass

3365

2781

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

3366

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

2782

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

3367

2783

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

3368

2784

else:

3369

2785

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

3370

2786

exc_info=e)

3371

raise

2787

raise e

3372

2788

3373

2789

# Delete all clients, and settings from config

3374

2790

while tcp_server.clients:

3375

2791

name, client = tcp_server.clients.popitem()

3376

2792

if use_dbus:

3377

2793

client.remove_from_connection()

3378

# Don't signal the disabling

2794

# Don't signal anything except ClientRemoved

3379

2795

client.disable(quiet=True)

3380

# Emit D-Bus signal for removal

3381

2796

if use_dbus:

3382

mandos_dbus_service.client_removed_signal(client)

2797

# Emit D-Bus signal

2798

mandos_dbus_service.ClientRemoved(client

2799

.dbus_object_path,

2800

client.name)

3383

2801

client_settings.clear()

3384

2802

3385

2803

atexit.register(cleanup)

3386

2804

3387

for client in tcp_server.clients.values():

2805

for client in tcp_server.clients.itervalues():

3388

2806

if use_dbus:

3389

# Emit D-Bus signal for adding

3390

mandos_dbus_service.client_added_signal(client)

2807

# Emit D-Bus signal

2808

mandos_dbus_service.ClientAdded(client.dbus_object_path)

3391

2809

# Need to initiate checking of clients

3392

2810

if client.enabled:

3393

2811

client.init_checker()

3396

2814

tcp_server.server_activate()

3397

2815

3398

2816

# Find out what port we got

3399

if zeroconf:

3400

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

2817

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

3401

2818

if use_ipv6:

3402

2819

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

3403

2820

" flowinfo %d, scope_id %d",

3409

2826

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

3410

2827

3411

2828

try:

3412

if zeroconf:

3413

# From the Avahi example code

3414

try:

3415

service.activate()

3416

except dbus.exceptions.DBusException as error:

3417

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

3418

cleanup()

3419

sys.exit(1)

3420

# End of Avahi example code

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

3421

2837

3422

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

3423

lambda *args, **kwargs:

3424

(tcp_server.handle_request

3425

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

2838

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

2839

lambda *args, **kwargs:

2840

(tcp_server.handle_request

2841

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

3426

2842

3427

2843

logger.debug("Starting main loop")

3428

2844

main_loop.run()

3438

2854

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

3439

2855

cleanup()

3440

2856

3441

3442

2857

if __name__ == '__main__':

3443

2858

main()