/mandos/release : revision 237.7.471

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#!/usr/bin/python3 -bI

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# -*- coding: utf-8; lexical-binding: t -*-

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#!/usr/bin/python

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

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#

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

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#

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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 file is part of Mandos.

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#

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#

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# Contact the authors at <mandos@recompile.se>.

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#

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from __future__ import (division, absolute_import, print_function,

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unicode_literals)

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except ImportError:

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pass

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import sys

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import unittest

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import argparse

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import logging

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import os

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try:

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import SocketServer as socketserver

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except ImportError:

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import socketserver

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import socket

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import argparse

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import datetime

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import 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 sys

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import re

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import os

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import signal

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import subprocess

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import atexit

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import stat

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import logging

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import logging.handlers

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import pwd

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import contextlib

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import itertools

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import collections

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import codecs

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import random

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import shlex

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import dbus

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import dbus.service

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import gi

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from gi.repository import GLib

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from dbus.mainloop.glib import DBusGMainLoop

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import ctypes

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import xml.dom.minidom

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import inspect

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if sys.version_info.major == 2:

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__metaclass__ = type

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str = unicode

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input = raw_input

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# Add collections.abc.Callable if it does not exist

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try:

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collections.abc.Callable

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except AttributeError:

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class abc:

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Callable = collections.Callable

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collections.abc = abc

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del abc

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# Add shlex.quote if it does not exist

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try:

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shlex.quote

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except AttributeError:

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shlex.quote = re.escape

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# Show warnings by default

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if not sys.warnoptions:

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import warnings

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warnings.simplefilter("default")

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# Try to find the value of SO_BINDTODEVICE:

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try:

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# This is where SO_BINDTODEVICE is in Python 3.3 (or 3.4?) and

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# No value found

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SO_BINDTODEVICE = None

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if sys.version_info < (3, 2):

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configparser.Configparser = configparser.SafeConfigParser

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if sys.version_info.major == 2:

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str = unicode

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version = "1.8.16"

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version = "1.7.16"

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stored_state_file = "clients.pickle"

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log = logging.getLogger(os.path.basename(sys.argv[0]))

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logging.captureWarnings(True) # Show warnings via the logging system

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logger = logging.getLogger()

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syslogger = None

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try:

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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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log.addHandler(syslogger)

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

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' %(message)s'))

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logger.addHandler(syslogger)

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if debug:

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console = logging.StreamHandler()

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console.setFormatter(logging.Formatter("%(asctime)s %(name)s"

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" [%(process)d]:"

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" %(levelname)s:"

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" %(message)s"))

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log.addHandler(console)

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log.setLevel(level)

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console.setFormatter(logging.Formatter('%(asctime)s %(name)s'

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' [%(process)d]:'

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' %(levelname)s:'

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' %(message)s'))

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logger.addHandler(console)

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logger.setLevel(level)

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class PGPError(Exception):

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pass

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class PGPEngine:

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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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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 == b"gpg":

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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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"--force-mdc",

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"--quiet"]

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self.gnupgargs = ['--batch',

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'--homedir', self.tempdir,

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'--force-mdc',

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'--quiet']

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# Only GPG version 1 has the --no-use-agent option.

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if self.gpg == b"gpg" or self.gpg.endswith(b"/gpg"):

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if self.gpg == "gpg" or self.gpg.endswith("/gpg"):

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self.gnupgargs.append("--no-use-agent")

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def __enter__(self):

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dir=self.tempdir) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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proc = subprocess.Popen([self.gpg, "--symmetric",

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"--passphrase-file",

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

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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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dir=self.tempdir) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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"--passphrase-file",

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proc = subprocess.Popen([self.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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# Pretend that we have an Avahi module

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class avahi:

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

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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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DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"

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DBUS_PATH_SERVER = "/"

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@staticmethod

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def string_array_to_txt_array(t):

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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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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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pass

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class AvahiService:

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class AvahiService(object):

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"""An Avahi (Zeroconf) service.

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Attributes:

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interface: integer; avahi.IF_UNSPEC or an interface index.

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Used to optionally bind to the specified interface.

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name: string; Example: "Mandos"

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type: string; Example: "_mandos._tcp".

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name: string; Example: 'Mandos'

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type: string; Example: '_mandos._tcp'.

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See <https://www.iana.org/assignments/service-names-port-numbers>

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port: integer; what port to announce

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TXT: list of strings; TXT record for the service

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def rename(self, remove=True):

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

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if self.rename_count >= self.max_renames:

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

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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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try:

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except dbus.exceptions.DBusException as error:

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if (error.get_dbus_name()

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

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

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

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return self.rename(remove=False)

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else:

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

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

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self.cleanup()

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os._exit(1)

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avahi.DBUS_INTERFACE_ENTRY_GROUP)

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self.entry_group_state_changed_match = (

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self.group.connect_to_signal(

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"StateChanged", self.entry_group_state_changed))

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log.debug("Adding Zeroconf service '%s' of type '%s' ...",

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self.name, self.type)

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'StateChanged', self.entry_group_state_changed))

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logger.debug("Adding Zeroconf service '%s' of type '%s' ...",

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self.name, self.type)

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self.group.AddService(

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self.interface,

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self.protocol,

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def entry_group_state_changed(self, state, error):

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

453

log.debug("Avahi entry group state change: %i", state)

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

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if state == avahi.ENTRY_GROUP_ESTABLISHED:

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log.debug("Zeroconf service established.")

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logger.debug("Zeroconf service established.")

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elif state == avahi.ENTRY_GROUP_COLLISION:

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log.info("Zeroconf service name collision.")

430

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

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

461

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

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str(error))

433

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

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str(error))

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

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def cleanup(self):

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

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

478

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

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

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bad_states = {

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avahi.SERVER_INVALID: "Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

488

log.error(bad_states[state])

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logger.error(bad_states[state])

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461

else:

490

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

462

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

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self.cleanup()

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elif state == avahi.SERVER_RUNNING:

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try:

495

467

except dbus.exceptions.DBusException as error:

496

468

if (error.get_dbus_name()

497

469

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

498

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

470

logger.info("Local Zeroconf service name"

471

" collision.")

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return self.rename(remove=False)

500

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else:

501

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

474

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

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self.cleanup()

503

476

os._exit(1)

504

477

else:

505

478

if error is None:

506

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

479

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

507

480

else:

508

log.debug("Unknown state: %r: %r", state, error)

481

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

509

482

510

483

def activate(self):

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

523

496

class AvahiServiceToSyslog(AvahiService):

524

497

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

525

498

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

526

ret = super(AvahiServiceToSyslog, self).rename(*args,

499

ret = super(AvahiServiceToSyslog, self).rename(self, *args,

527

500

**kwargs)

528

501

syslogger.setFormatter(logging.Formatter(

529

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

502

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

530

503

.format(self.name)))

531

504

return ret

532

505

533

506

534

507

# Pretend that we have a GnuTLS module

535

class gnutls:

536

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

508

class GnuTLS(object):

509

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

510

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

537

511

538

512

library = ctypes.util.find_library("gnutls")

539

513

if library is None:

540

514

library = ctypes.util.find_library("gnutls-deb0")

541

515

_library = ctypes.cdll.LoadLibrary(library)

542

516

del library

517

_need_version = b"3.3.0"

518

519

def __init__(self):

520

# Need to use "self" here, since this method is called before

521

# the assignment to the "gnutls" global variable happens.

522

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

523

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

524

.format(self._need_version))

543

525

544

526

# Unless otherwise indicated, the constants and types below are

545

527

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

549

531

E_INTERRUPTED = -52

550

532

E_AGAIN = -28

551

533

CRT_OPENPGP = 2

552

CRT_RAWPK = 3

553

534

CLIENT = 2

554

535

SHUT_RDWR = 0

555

536

CRD_CERTIFICATE = 1

556

537

E_NO_CERTIFICATE_FOUND = -49

557

X509_FMT_DER = 0

558

NO_TICKETS = 1<<10

559

ENABLE_RAWPK = 1<<18

560

CTYPE_PEERS = 3

561

KEYID_USE_SHA256 = 1 # gnutls/x509.h

562

538

OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h

563

539

564

540

# Types

565

class _session_int(ctypes.Structure):

541

class session_int(ctypes.Structure):

566

542

_fields_ = []

567

session_t = ctypes.POINTER(_session_int)

543

session_t = ctypes.POINTER(session_int)

568

544

569

545

class certificate_credentials_st(ctypes.Structure):

570

546

_fields_ = []

573

549

certificate_type_t = ctypes.c_int

574

550

575

551

class datum_t(ctypes.Structure):

576

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

577

("size", ctypes.c_uint)]

552

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

553

('size', ctypes.c_uint)]

578

554

579

class _openpgp_crt_int(ctypes.Structure):

555

class openpgp_crt_int(ctypes.Structure):

580

556

_fields_ = []

581

openpgp_crt_t = ctypes.POINTER(_openpgp_crt_int)

557

openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)

582

558

openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h

583

559

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

584

560

credentials_type_t = ctypes.c_int

587

563

588

564

# Exceptions

589

565

class Error(Exception):

566

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

567

# exception might be raised from within GnuTLS.__init__,

568

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

569

# global variable has happened.

590

570

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

591

571

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

592

572

# code is passed, convert it to a string with

593

573

# gnutls.strerror()

594

574

self.code = code

595

575

if message is None and code is not None:

596

message = gnutls.strerror(code).decode(

597

"utf-8", errors="replace")

598

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

576

message = GnuTLS.strerror(code)

577

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

599

578

message, *args)

600

579

601

580

class CertificateSecurityError(Error):

602

581

pass

603

582

604

class PointerTo:

605

def __init__(self, cls):

606

self.cls = cls

607

608

def from_param(self, obj):

609

if not isinstance(obj, self.cls):

610

raise TypeError("Not of type {}: {!r}"

611

.format(self.cls.__name__, obj))

612

return ctypes.byref(obj.from_param(obj))

613

614

class CastToVoidPointer:

615

def __init__(self, cls):

616

self.cls = cls

617

618

def from_param(self, obj):

619

if not isinstance(obj, self.cls):

620

raise TypeError("Not of type {}: {!r}"

621

.format(self.cls.__name__, obj))

622

return ctypes.cast(obj.from_param(obj), ctypes.c_void_p)

623

624

class With_from_param:

625

@classmethod

626

def from_param(cls, obj):

627

return obj._as_parameter_

628

629

583

# Classes

630

class Credentials(With_from_param):

584

class Credentials(object):

631

585

def __init__(self):

632

self._as_parameter_ = gnutls.certificate_credentials_t()

633

gnutls.certificate_allocate_credentials(self)

586

self._c_object = gnutls.certificate_credentials_t()

587

gnutls.certificate_allocate_credentials(

588

ctypes.byref(self._c_object))

634

589

self.type = gnutls.CRD_CERTIFICATE

635

590

636

591

def __del__(self):

637

gnutls.certificate_free_credentials(self)

592

gnutls.certificate_free_credentials(self._c_object)

638

593

639

class ClientSession(With_from_param):

594

class ClientSession(object):

640

595

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

641

self._as_parameter_ = gnutls.session_t()

642

gnutls_flags = gnutls.CLIENT

643

if gnutls.check_version(b"3.5.6"):

644

gnutls_flags |= gnutls.NO_TICKETS

645

if gnutls.has_rawpk:

646

gnutls_flags |= gnutls.ENABLE_RAWPK

647

gnutls.init(self, gnutls_flags)

648

del gnutls_flags

649

gnutls.set_default_priority(self)

650

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

651

gnutls.handshake_set_private_extensions(self, True)

596

self._c_object = gnutls.session_t()

597

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

598

gnutls.set_default_priority(self._c_object)

599

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

600

gnutls.handshake_set_private_extensions(self._c_object,

601

True)

652

602

self.socket = socket

653

603

if credentials is None:

654

604

credentials = gnutls.Credentials()

655

gnutls.credentials_set(self, credentials.type,

656

credentials)

605

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

606

ctypes.cast(credentials._c_object,

607

ctypes.c_void_p))

657

608

self.credentials = credentials

658

609

659

610

def __del__(self):

660

gnutls.deinit(self)

611

gnutls.deinit(self._c_object)

661

612

662

613

def handshake(self):

663

return gnutls.handshake(self)

614

return gnutls.handshake(self._c_object)

664

615

665

616

def send(self, data):

666

617

data = bytes(data)

667

618

data_len = len(data)

668

619

while data_len > 0:

669

data_len -= gnutls.record_send(self, data[-data_len:],

620

data_len -= gnutls.record_send(self._c_object,

621

data[-data_len:],

670

622

data_len)

671

623

672

624

def bye(self):

673

return gnutls.bye(self, gnutls.SHUT_RDWR)

625

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

674

626

675

627

# Error handling functions

676

628

def _error_code(result):

677

629

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

678

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

679

if result >= gnutls.E_SUCCESS:

630

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

631

if result >= 0:

680

632

return result

681

633

if result == gnutls.E_NO_CERTIFICATE_FOUND:

682

634

raise gnutls.CertificateSecurityError(code=result)

683

635

raise gnutls.Error(code=result)

684

636

685

def _retry_on_error(result, func, arguments,

686

_error_code=_error_code):

637

def _retry_on_error(result, func, arguments):

687

638

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

688

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

689

while result < gnutls.E_SUCCESS:

639

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

640

while result < 0:

690

641

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

691

642

return _error_code(result)

692

643

result = func(*arguments)

697

648

698

649

# Functions

699

650

priority_set_direct = _library.gnutls_priority_set_direct

700

priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,

651

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

701

652

ctypes.POINTER(ctypes.c_char_p)]

702

653

priority_set_direct.restype = _error_code

703

654

704

655

init = _library.gnutls_init

705

init.argtypes = [PointerTo(ClientSession), ctypes.c_int]

656

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

706

657

init.restype = _error_code

707

658

708

659

set_default_priority = _library.gnutls_set_default_priority

709

set_default_priority.argtypes = [ClientSession]

660

set_default_priority.argtypes = [session_t]

710

661

set_default_priority.restype = _error_code

711

662

712

663

record_send = _library.gnutls_record_send

713

record_send.argtypes = [ClientSession, ctypes.c_void_p,

664

record_send.argtypes = [session_t, ctypes.c_void_p,

714

665

ctypes.c_size_t]

715

666

record_send.restype = ctypes.c_ssize_t

716

667

record_send.errcheck = _retry_on_error

718

669

certificate_allocate_credentials = (

719

670

_library.gnutls_certificate_allocate_credentials)

720

671

certificate_allocate_credentials.argtypes = [

721

PointerTo(Credentials)]

672

ctypes.POINTER(certificate_credentials_t)]

722

673

certificate_allocate_credentials.restype = _error_code

723

674

724

675

certificate_free_credentials = (

725

676

_library.gnutls_certificate_free_credentials)

726

certificate_free_credentials.argtypes = [Credentials]

677

certificate_free_credentials.argtypes = [

678

certificate_credentials_t]

727

679

certificate_free_credentials.restype = None

728

680

729

681

handshake_set_private_extensions = (

730

682

_library.gnutls_handshake_set_private_extensions)

731

handshake_set_private_extensions.argtypes = [ClientSession,

683

handshake_set_private_extensions.argtypes = [session_t,

732

684

ctypes.c_int]

733

685

handshake_set_private_extensions.restype = None

734

686

735

687

credentials_set = _library.gnutls_credentials_set

736

credentials_set.argtypes = [ClientSession, credentials_type_t,

737

CastToVoidPointer(Credentials)]

688

credentials_set.argtypes = [session_t, credentials_type_t,

689

ctypes.c_void_p]

738

690

credentials_set.restype = _error_code

739

691

740

692

strerror = _library.gnutls_strerror

742

694

strerror.restype = ctypes.c_char_p

743

695

744

696

certificate_type_get = _library.gnutls_certificate_type_get

745

certificate_type_get.argtypes = [ClientSession]

697

certificate_type_get.argtypes = [session_t]

746

698

certificate_type_get.restype = _error_code

747

699

748

700

certificate_get_peers = _library.gnutls_certificate_get_peers

749

certificate_get_peers.argtypes = [ClientSession,

701

certificate_get_peers.argtypes = [session_t,

750

702

ctypes.POINTER(ctypes.c_uint)]

751

703

certificate_get_peers.restype = ctypes.POINTER(datum_t)

752

704

759

711

global_set_log_function.restype = None

760

712

761

713

deinit = _library.gnutls_deinit

762

deinit.argtypes = [ClientSession]

714

deinit.argtypes = [session_t]

763

715

deinit.restype = None

764

716

765

717

handshake = _library.gnutls_handshake

766

handshake.argtypes = [ClientSession]

767

handshake.restype = ctypes.c_int

718

handshake.argtypes = [session_t]

719

handshake.restype = _error_code

768

720

handshake.errcheck = _retry_on_error

769

721

770

722

transport_set_ptr = _library.gnutls_transport_set_ptr

771

transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]

723

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

772

724

transport_set_ptr.restype = None

773

725

774

726

bye = _library.gnutls_bye

775

bye.argtypes = [ClientSession, close_request_t]

776

bye.restype = ctypes.c_int

727

bye.argtypes = [session_t, close_request_t]

728

bye.restype = _error_code

777

729

bye.errcheck = _retry_on_error

778

730

779

731

check_version = _library.gnutls_check_version

780

732

check_version.argtypes = [ctypes.c_char_p]

781

733

check_version.restype = ctypes.c_char_p

782

734

783

_need_version = b"3.3.0"

784

if check_version(_need_version) is None:

785

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

786

.format(_need_version))

787

788

_tls_rawpk_version = b"3.6.6"

789

has_rawpk = bool(check_version(_tls_rawpk_version))

790

791

if has_rawpk:

792

# Types

793

class pubkey_st(ctypes.Structure):

794

_fields = []

795

pubkey_t = ctypes.POINTER(pubkey_st)

796

797

x509_crt_fmt_t = ctypes.c_int

798

799

# All the function declarations below are from

800

# gnutls/abstract.h

801

pubkey_init = _library.gnutls_pubkey_init

802

pubkey_init.argtypes = [ctypes.POINTER(pubkey_t)]

803

pubkey_init.restype = _error_code

804

805

pubkey_import = _library.gnutls_pubkey_import

806

pubkey_import.argtypes = [pubkey_t, ctypes.POINTER(datum_t),

807

x509_crt_fmt_t]

808

pubkey_import.restype = _error_code

809

810

pubkey_get_key_id = _library.gnutls_pubkey_get_key_id

811

pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,

812

ctypes.POINTER(ctypes.c_ubyte),

813

ctypes.POINTER(ctypes.c_size_t)]

814

pubkey_get_key_id.restype = _error_code

815

816

pubkey_deinit = _library.gnutls_pubkey_deinit

817

pubkey_deinit.argtypes = [pubkey_t]

818

pubkey_deinit.restype = None

819

else:

820

# All the function declarations below are from

821

# gnutls/openpgp.h

822

823

openpgp_crt_init = _library.gnutls_openpgp_crt_init

824

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

825

openpgp_crt_init.restype = _error_code

826

827

openpgp_crt_import = _library.gnutls_openpgp_crt_import

828

openpgp_crt_import.argtypes = [openpgp_crt_t,

829

ctypes.POINTER(datum_t),

830

openpgp_crt_fmt_t]

831

openpgp_crt_import.restype = _error_code

832

833

openpgp_crt_verify_self = \

834

_library.gnutls_openpgp_crt_verify_self

835

openpgp_crt_verify_self.argtypes = [

836

openpgp_crt_t,

837

ctypes.c_uint,

838

ctypes.POINTER(ctypes.c_uint),

839

]

840

openpgp_crt_verify_self.restype = _error_code

841

842

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

843

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

844

openpgp_crt_deinit.restype = None

845

846

openpgp_crt_get_fingerprint = (

847

_library.gnutls_openpgp_crt_get_fingerprint)

848

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

849

ctypes.c_void_p,

850

ctypes.POINTER(

851

ctypes.c_size_t)]

852

openpgp_crt_get_fingerprint.restype = _error_code

853

854

if check_version(b"3.6.4"):

855

certificate_type_get2 = _library.gnutls_certificate_type_get2

856

certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]

857

certificate_type_get2.restype = _error_code

735

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

736

737

openpgp_crt_init = _library.gnutls_openpgp_crt_init

738

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

739

openpgp_crt_init.restype = _error_code

740

741

openpgp_crt_import = _library.gnutls_openpgp_crt_import

742

openpgp_crt_import.argtypes = [openpgp_crt_t,

743

ctypes.POINTER(datum_t),

744

openpgp_crt_fmt_t]

745

openpgp_crt_import.restype = _error_code

746

747

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

748

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

749

ctypes.POINTER(ctypes.c_uint)]

750

openpgp_crt_verify_self.restype = _error_code

751

752

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

753

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

754

openpgp_crt_deinit.restype = None

755

756

openpgp_crt_get_fingerprint = (

757

_library.gnutls_openpgp_crt_get_fingerprint)

758

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

759

ctypes.c_void_p,

760

ctypes.POINTER(

761

ctypes.c_size_t)]

762

openpgp_crt_get_fingerprint.restype = _error_code

858

763

859

764

# Remove non-public functions

860

765

del _error_code, _retry_on_error

766

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

767

gnutls = GnuTLS()

861

768

862

769

863

770

def call_pipe(connection, # : multiprocessing.Connection

871

778

connection.close()

872

779

873

780

874

class Client:

781

class Client(object):

875

782

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

876

783

877

784

Attributes:

878

approved: bool(); None if not yet approved/disapproved

785

approved: bool(); 'None' if not yet approved/disapproved

879

786

approval_delay: datetime.timedelta(); Time to wait for approval

880

787

approval_duration: datetime.timedelta(); Duration of one approval

881

checker: multiprocessing.Process(); a running checker process used

882

to see if the client lives. None if no process is

883

running.

788

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

789

to see if the client lives.

790

'None' if no process is running.

884

791

checker_callback_tag: a GLib event source tag, or None

885

792

checker_command: string; External command which is run to check

886

793

if client lives. %() expansions are done at

894

801

disable_initiator_tag: a GLib event source tag, or None

895

802

enabled: bool()

896

803

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

897

uniquely identify an OpenPGP client

898

key_id: string (64 hexadecimal digits); used to uniquely identify

899

a client using raw public keys

804

uniquely identify the client

900

805

host: string; available for use by the checker command

901

806

interval: datetime.timedelta(); How often to start a new checker

902

807

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

920

825

"""

921

826

922

827

runtime_expansions = ("approval_delay", "approval_duration",

923

"created", "enabled", "expires", "key_id",

828

"created", "enabled", "expires",

924

829

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

925

830

"last_approval_request", "last_checked_ok",

926

831

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

956

861

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

957

862

"enabled")

958

863

959

# Uppercase and remove spaces from key_id and fingerprint

960

# for later comparison purposes with return value from the

961

# key_id() and fingerprint() functions

962

client["key_id"] = (section.get("key_id", "").upper()

963

.replace(" ", ""))

864

# Uppercase and remove spaces from fingerprint for later

865

# comparison purposes with return value from the

866

# fingerprint() function

964

867

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

965

868

.replace(" ", ""))

966

869

if "secret" in section:

1009

912

self.last_enabled = None

1010

913

self.expires = None

1011

914

1012

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

1013

log.debug(" Key ID: %s", self.key_id)

1014

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

915

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

916

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

1015

917

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

1016

918

datetime.datetime.utcnow())

1017

919

1045

947

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

1046

948

# Already enabled

1047

949

return

950

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

1048

951

self.enabled = True

1049

952

self.last_enabled = datetime.datetime.utcnow()

1050

953

self.init_checker()

1055

958

if not getattr(self, "enabled", False):

1056

959

return False

1057

960

if not quiet:

1058

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

961

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

1059

962

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

1060

963

GLib.source_remove(self.disable_initiator_tag)

1061

964

self.disable_initiator_tag = None

1073

976

def __del__(self):

1074

977

self.disable()

1075

978

1076

def init_checker(self, randomize_start=False):

1077

# Schedule a new checker to be started a randomly selected

1078

# time (a fraction of 'interval') from now. This spreads out

1079

# the startup of checkers over time when the server is

1080

# started.

979

def init_checker(self):

980

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

981

# and every interval from then on.

1081

982

if self.checker_initiator_tag is not None:

1082

983

GLib.source_remove(self.checker_initiator_tag)

1083

interval_milliseconds = int(self.interval.total_seconds()

1084

* 1000)

1085

if randomize_start:

1086

delay_milliseconds = random.randrange(

1087

interval_milliseconds + 1)

1088

else:

1089

delay_milliseconds = interval_milliseconds

1090

984

self.checker_initiator_tag = GLib.timeout_add(

1091

delay_milliseconds, self.start_checker, randomize_start)

1092

delay = datetime.timedelta(0, 0, 0, delay_milliseconds)

1093

# A checker might take up to an 'interval' of time, so we can

1094

# expire at the soonest one interval after a checker was

1095

# started. Since the initial checker is delayed, the expire

1096

# time might have to be extended.

1097

now = datetime.datetime.utcnow()

1098

self.expires = now + delay + self.interval

1099

# Schedule a disable() at expire time

985

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

986

self.start_checker)

987

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

1100

988

if self.disable_initiator_tag is not None:

1101

989

GLib.source_remove(self.disable_initiator_tag)

1102

990

self.disable_initiator_tag = GLib.timeout_add(

1103

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

1104

self.disable)

991

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

992

# Also start a new checker *right now*.

993

self.start_checker()

1105

994

1106

995

def checker_callback(self, source, condition, connection,

1107

996

command):

1108

997

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

998

self.checker_callback_tag = None

999

self.checker = None

1109

1000

# Read return code from connection (see call_pipe)

1110

1001

returncode = connection.recv()

1111

1002

connection.close()

1112

if self.checker is not None:

1113

self.checker.join()

1114

self.checker_callback_tag = None

1115

self.checker = None

1116

1003

1117

1004

if returncode >= 0:

1118

1005

self.last_checker_status = returncode

1119

1006

self.last_checker_signal = None

1120

1007

if self.last_checker_status == 0:

1121

log.info("Checker for %(name)s succeeded", vars(self))

1008

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

1009

vars(self))

1122

1010

self.checked_ok()

1123

1011

else:

1124

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

1012

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

1125

1013

else:

1126

1014

self.last_checker_status = -1

1127

1015

self.last_checker_signal = -returncode

1128

log.warning("Checker for %(name)s crashed?", vars(self))

1016

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

1017

vars(self))

1129

1018

return False

1130

1019

1131

1020

def checked_ok(self):

1150

1039

def need_approval(self):

1151

1040

self.last_approval_request = datetime.datetime.utcnow()

1152

1041

1153

def start_checker(self, start_was_randomized=False):

1042

def start_checker(self):

1154

1043

"""Start a new checker subprocess if one is not running.

1155

1044

1156

1045

If a checker already exists, leave it running and do

1165

1054

# should be.

1166

1055

1167

1056

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

1168

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

1057

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

1169

1058

self.checker.join()

1170

1059

self.checker = None

1171

1060

# Start a new checker if needed

1172

1061

if self.checker is None:

1173

1062

# Escape attributes for the shell

1174

1063

escaped_attrs = {

1175

attr: shlex.quote(str(getattr(self, attr)))

1064

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

1176

1065

for attr in self.runtime_expansions}

1177

1066

try:

1178

1067

command = self.checker_command % escaped_attrs

1179

1068

except TypeError as error:

1180

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

1181

self.checker_command, exc_info=error)

1069

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

1070

self.checker_command,

1071

exc_info=error)

1182

1072

return True # Try again later

1183

1073

self.current_checker_command = command

1184

log.info("Starting checker %r for %s", command, self.name)

1074

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

1075

self.name)

1185

1076

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

1186

1077

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

1187

1078

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

1203

1094

kwargs=popen_args)

1204

1095

self.checker.start()

1205

1096

self.checker_callback_tag = GLib.io_add_watch(

1206

GLib.IOChannel.unix_new(pipe[0].fileno()),

1207

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

1097

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

1208

1098

self.checker_callback, pipe[0], command)

1209

if start_was_randomized:

1210

# We were started after a random delay; Schedule a new

1211

# checker to be started an 'interval' from now, and every

1212

# interval from then on.

1213

now = datetime.datetime.utcnow()

1214

self.checker_initiator_tag = GLib.timeout_add(

1215

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

1216

self.start_checker)

1217

self.expires = max(self.expires, now + self.interval)

1218

# Don't start a new checker again after same random delay

1219

return False

1220

1099

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

1221

1100

return True

1222

1101

1227

1106

self.checker_callback_tag = None

1228

1107

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

1229

1108

return

1230

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

1109

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

1231

1110

self.checker.terminate()

1232

1111

self.checker = None

1233

1112

1260

1139

func._dbus_name = func.__name__

1261

1140

if func._dbus_name.endswith("_dbus_property"):

1262

1141

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

1263

func._dbus_get_args_options = {"byte_arrays": byte_arrays}

1142

func._dbus_get_args_options = {'byte_arrays': byte_arrays}

1264

1143

return func

1265

1144

1266

1145

return decorator

1355

1234

1356

1235

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1357

1236

out_signature="s",

1358

path_keyword="object_path",

1359

connection_keyword="connection")

1237

path_keyword='object_path',

1238

connection_keyword='connection')

1360

1239

def Introspect(self, object_path, connection):

1361

1240

"""Overloading of standard D-Bus method.

1362

1241

1411

1290

document.unlink()

1412

1291

except (AttributeError, xml.dom.DOMException,

1413

1292

xml.parsers.expat.ExpatError) as error:

1414

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

1415

exc_info=error)

1293

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

1294

exc_info=error)

1416

1295

return xmlstring

1417

1296

1418

1297

1476

1355

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

1477

1356

"'ay' signature {!r}"

1478

1357

.format(prop._dbus_signature))

1479

value = dbus.ByteArray(bytes(value))

1358

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

1359

for byte in value))

1480

1360

prop(value)

1481

1361

1482

1362

@dbus.service.method(dbus.PROPERTIES_IFACE,

1515

1395

1516

1396

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1517

1397

out_signature="s",

1518

path_keyword="object_path",

1519

connection_keyword="connection")

1398

path_keyword='object_path',

1399

connection_keyword='connection')

1520

1400

def Introspect(self, object_path, connection):

1521

1401

"""Overloading of standard D-Bus method.

1522

1402

1578

1458

document.unlink()

1579

1459

except (AttributeError, xml.dom.DOMException,

1580

1460

xml.parsers.expat.ExpatError) as error:

1581

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

1582

exc_info=error)

1461

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

1462

exc_info=error)

1583

1463

return xmlstring

1584

1464

1585

1465

1617

1497

1618

1498

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1619

1499

out_signature="s",

1620

path_keyword="object_path",

1621

connection_keyword="connection")

1500

path_keyword='object_path',

1501

connection_keyword='connection')

1622

1502

def Introspect(self, object_path, connection):

1623

1503

"""Overloading of standard D-Bus method.

1624

1504

1649

1529

document.unlink()

1650

1530

except (AttributeError, xml.dom.DOMException,

1651

1531

xml.parsers.expat.ExpatError) as error:

1652

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

1653

exc_info=error)

1532

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

1533

exc_info=error)

1654

1534

return xmlstring

1655

1535

1656

1536

2120

2000

def Name_dbus_property(self):

2121

2001

return dbus.String(self.name)

2122

2002

2123

# KeyID - property

2124

@dbus_annotations(

2125

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

2126

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

2127

def KeyID_dbus_property(self):

2128

return dbus.String(self.key_id)

2129

2130

2003

# Fingerprint - property

2131

2004

@dbus_annotations(

2132

2005

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

2287

2160

del _interface

2288

2161

2289

2162

2290

class ProxyClient:

2291

def __init__(self, child_pipe, key_id, fpr, address):

2163

class ProxyClient(object):

2164

def __init__(self, child_pipe, fpr, address):

2292

2165

self._pipe = child_pipe

2293

self._pipe.send(("init", key_id, fpr, address))

2166

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

2294

2167

if not self._pipe.recv():

2295

raise KeyError(key_id or fpr)

2168

raise KeyError(fpr)

2296

2169

2297

2170

def __getattribute__(self, name):

2298

if name == "_pipe":

2171

if name == '_pipe':

2299

2172

return super(ProxyClient, self).__getattribute__(name)

2300

self._pipe.send(("getattr", name))

2173

self._pipe.send(('getattr', name))

2301

2174

data = self._pipe.recv()

2302

if data[0] == "data":

2175

if data[0] == 'data':

2303

2176

return data[1]

2304

if data[0] == "function":

2177

if data[0] == 'function':

2305

2178

2306

2179

def func(*args, **kwargs):

2307

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

2180

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

2308

2181

return self._pipe.recv()[1]

2309

2182

2310

2183

return func

2311

2184

2312

2185

def __setattr__(self, name, value):

2313

if name == "_pipe":

2186

if name == '_pipe':

2314

2187

return super(ProxyClient, self).__setattr__(name, value)

2315

self._pipe.send(("setattr", name, value))

2188

self._pipe.send(('setattr', name, value))

2316

2189

2317

2190

2318

2191

class ClientHandler(socketserver.BaseRequestHandler, object):

2323

2196

2324

2197

def handle(self):

2325

2198

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

2326

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

2327

str(self.client_address))

2328

log.debug("Pipe FD: %d", self.server.child_pipe.fileno())

2199

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

2200

str(self.client_address))

2201

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

2202

self.server.child_pipe.fileno())

2329

2203

2330

2204

session = gnutls.ClientSession(self.request)

2331

2205

2332

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

2206

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

2333

2207

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

2334

2208

# "+COMP-NULL", "+CTYPE-OPENPGP",

2335

2209

# "+DHE-DSS"))

2337

2211

priority = self.server.gnutls_priority

2338

2212

if priority is None:

2339

2213

priority = "NORMAL"

2340

gnutls.priority_set_direct(session,

2341

priority.encode("utf-8"), None)

2214

gnutls.priority_set_direct(session._c_object,

2215

priority.encode("utf-8"),

2216

None)

2342

2217

2343

2218

# Start communication using the Mandos protocol

2344

2219

# Get protocol number

2345

2220

line = self.request.makefile().readline()

2346

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

2221

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

2347

2222

try:

2348

2223

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

2349

2224

raise RuntimeError(line)

2350

2225

except (ValueError, IndexError, RuntimeError) as error:

2351

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

2226

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

2352

2227

return

2353

2228

2354

2229

# Start GnuTLS connection

2355

2230

try:

2356

2231

session.handshake()

2357

2232

except gnutls.Error as error:

2358

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

2233

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

2359

2234

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

2360

2235

# established. Just abandon the request.

2361

2236

return

2362

log.debug("Handshake succeeded")

2237

logger.debug("Handshake succeeded")

2363

2238

2364

2239

approval_required = False

2365

2240

try:

2366

if gnutls.has_rawpk:

2367

fpr = b""

2368

try:

2369

key_id = self.key_id(

2370

self.peer_certificate(session))

2371

except (TypeError, gnutls.Error) as error:

2372

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

2373

return

2374

log.debug("Key ID: %s",

2375

key_id.decode("utf-8",

2376

errors="replace"))

2377

2378

else:

2379

key_id = b""

2380

try:

2381

fpr = self.fingerprint(

2382

self.peer_certificate(session))

2383

except (TypeError, gnutls.Error) as error:

2384

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

2385

return

2386

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

2387

2388

try:

2389

client = ProxyClient(child_pipe, key_id, fpr,

2241

try:

2242

fpr = self.fingerprint(

2243

self.peer_certificate(session))

2244

except (TypeError, gnutls.Error) as error:

2245

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

2246

return

2247

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

2248

2249

try:

2250

client = ProxyClient(child_pipe, fpr,

2390

2251

self.client_address)

2391

2252

except KeyError:

2392

2253

return

2398

2259

2399

2260

while True:

2400

2261

if not client.enabled:

2401

log.info("Client %s is disabled", client.name)

2262

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

2263

client.name)

2402

2264

if self.server.use_dbus:

2403

2265

# Emit D-Bus signal

2404

2266

client.Rejected("Disabled")

2408

2270

# We are approved or approval is disabled

2409

2271

break

2410

2272

elif client.approved is None:

2411

log.info("Client %s needs approval",

2412

client.name)

2273

logger.info("Client %s needs approval",

2274

client.name)

2413

2275

if self.server.use_dbus:

2414

2276

# Emit D-Bus signal

2415

2277

client.NeedApproval(

2416

2278

client.approval_delay.total_seconds()

2417

2279

* 1000, client.approved_by_default)

2418

2280

else:

2419

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

2420

client.name)

2281

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

2282

client.name)

2421

2283

if self.server.use_dbus:

2422

2284

# Emit D-Bus signal

2423

2285

client.Rejected("Denied")

2431

2293

time2 = datetime.datetime.now()

2432

2294

if (time2 - time) >= delay:

2433

2295

if not client.approved_by_default:

2434

log.warning("Client %s timed out while"

2435

" waiting for approval",

2436

client.name)

2296

logger.warning("Client %s timed out while"

2297

" waiting for approval",

2298

client.name)

2437

2299

if self.server.use_dbus:

2438

2300

# Emit D-Bus signal

2439

2301

client.Rejected("Approval timed out")

2446

2308

try:

2447

2309

session.send(client.secret)

2448

2310

except gnutls.Error as error:

2449

log.warning("gnutls send failed", exc_info=error)

2311

logger.warning("gnutls send failed",

2312

exc_info=error)

2450

2313

return

2451

2314

2452

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

2315

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

2453

2316

# bump the timeout using extended_timeout

2454

2317

client.bump_timeout(client.extended_timeout)

2455

2318

if self.server.use_dbus:

2462

2325

try:

2463

2326

session.bye()

2464

2327

except gnutls.Error as error:

2465

log.warning("GnuTLS bye failed", exc_info=error)

2328

logger.warning("GnuTLS bye failed",

2329

exc_info=error)

2466

2330

2467

2331

@staticmethod

2468

2332

def peer_certificate(session):

2469

"Return the peer's certificate as a bytestring"

2470

try:

2471

cert_type = gnutls.certificate_type_get2(

2472

session, gnutls.CTYPE_PEERS)

2473

except AttributeError:

2474

cert_type = gnutls.certificate_type_get(session)

2475

if gnutls.has_rawpk:

2476

valid_cert_types = frozenset((gnutls.CRT_RAWPK,))

2477

else:

2478

valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))

2479

# If not a valid certificate type...

2480

if cert_type not in valid_cert_types:

2481

log.info("Cert type %r not in %r", cert_type,

2482

valid_cert_types)

2333

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

2334

# If not an OpenPGP certificate...

2335

if (gnutls.certificate_type_get(session._c_object)

2336

!= gnutls.CRT_OPENPGP):

2483

2337

# ...return invalid data

2484

2338

return b""

2485

2339

list_size = ctypes.c_uint(1)

2486

2340

cert_list = (gnutls.certificate_get_peers

2487

(session, ctypes.byref(list_size)))

2341

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

2488

2342

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

2489

2343

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

2490

2344

if list_size.value == 0:

2493

2347

return ctypes.string_at(cert.data, cert.size)

2494

2348

2495

2349

@staticmethod

2496

def key_id(certificate):

2497

"Convert a certificate bytestring to a hexdigit key ID"

2498

# New GnuTLS "datum" with the public key

2499

datum = gnutls.datum_t(

2500

ctypes.cast(ctypes.c_char_p(certificate),

2501

ctypes.POINTER(ctypes.c_ubyte)),

2502

ctypes.c_uint(len(certificate)))

2503

# XXX all these need to be created in the gnutls "module"

2504

# New empty GnuTLS certificate

2505

pubkey = gnutls.pubkey_t()

2506

gnutls.pubkey_init(ctypes.byref(pubkey))

2507

# Import the raw public key into the certificate

2508

gnutls.pubkey_import(pubkey,

2509

ctypes.byref(datum),

2510

gnutls.X509_FMT_DER)

2511

# New buffer for the key ID

2512

buf = ctypes.create_string_buffer(32)

2513

buf_len = ctypes.c_size_t(len(buf))

2514

# Get the key ID from the raw public key into the buffer

2515

gnutls.pubkey_get_key_id(

2516

pubkey,

2517

gnutls.KEYID_USE_SHA256,

2518

ctypes.cast(ctypes.byref(buf),

2519

ctypes.POINTER(ctypes.c_ubyte)),

2520

ctypes.byref(buf_len))

2521

# Deinit the certificate

2522

gnutls.pubkey_deinit(pubkey)

2523

2524

# Convert the buffer to a Python bytestring

2525

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

2526

# Convert the bytestring to hexadecimal notation

2527

hex_key_id = binascii.hexlify(key_id).upper()

2528

return hex_key_id

2529

2530

@staticmethod

2531

2350

def fingerprint(openpgp):

2532

2351

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

2533

2352

# New GnuTLS "datum" with the OpenPGP public key

2547

2366

ctypes.byref(crtverify))

2548

2367

if crtverify.value != 0:

2549

2368

gnutls.openpgp_crt_deinit(crt)

2550

raise gnutls.CertificateSecurityError(code

2551

=crtverify.value)

2369

raise gnutls.CertificateSecurityError("Verify failed")

2552

2370

# New buffer for the fingerprint

2553

2371

buf = ctypes.create_string_buffer(20)

2554

2372

buf_len = ctypes.c_size_t()

2564

2382

return hex_fpr

2565

2383

2566

2384

2567

class MultiprocessingMixIn:

2385

class MultiprocessingMixIn(object):

2568

2386

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

2569

2387

2570

2388

def sub_process_main(self, request, address):

2582

2400

return proc

2583

2401

2584

2402

2585

class MultiprocessingMixInWithPipe(MultiprocessingMixIn):

2403

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

2586

2404

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

2587

2405

2588

2406

def process_request(self, request, client_address):

2603

2421

2604

2422

2605

2423

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

2606

socketserver.TCPServer):

2607

"""IPv6-capable TCP server. Accepts None as address and/or port

2424

socketserver.TCPServer, object):

2425

"""IPv6-capable TCP server. Accepts 'None' as address and/or port

2608

2426

2609

2427

Attributes:

2610

2428

enabled: Boolean; whether this server is activated yet

2661

2479

if SO_BINDTODEVICE is None:

2662

2480

# Fall back to a hard-coded value which seems to be

2663

2481

# common enough.

2664

log.warning("SO_BINDTODEVICE not found, trying 25")

2482

logger.warning("SO_BINDTODEVICE not found, trying 25")

2665

2483

SO_BINDTODEVICE = 25

2666

2484

try:

2667

2485

self.socket.setsockopt(

2669

2487

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

2670

2488

except socket.error as error:

2671

2489

if error.errno == errno.EPERM:

2672

log.error("No permission to bind to interface %s",

2673

self.interface)

2490

logger.error("No permission to bind to"

2491

" interface %s", self.interface)

2674

2492

elif error.errno == errno.ENOPROTOOPT:

2675

log.error("SO_BINDTODEVICE not available; cannot"

2676

" bind to interface %s", self.interface)

2493

logger.error("SO_BINDTODEVICE not available;"

2494

" cannot bind to interface %s",

2495

self.interface)

2677

2496

elif error.errno == errno.ENODEV:

2678

log.error("Interface %s does not exist, cannot"

2679

" bind", self.interface)

2497

logger.error("Interface %s does not exist,"

2498

" cannot bind", self.interface)

2680

2499

else:

2681

2500

raise

2682

2501

# Only bind(2) the socket if we really need to.

2683

2502

if self.server_address[0] or self.server_address[1]:

2684

if self.server_address[1]:

2685

self.allow_reuse_address = True

2686

2503

if not self.server_address[0]:

2687

2504

if self.address_family == socket.AF_INET6:

2688

2505

any_address = "::" # in6addr_any

2741

2558

def add_pipe(self, parent_pipe, proc):

2742

2559

# Call "handle_ipc" for both data and EOF events

2743

2560

GLib.io_add_watch(

2744

GLib.IOChannel.unix_new(parent_pipe.fileno()),

2745

GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,

2561

parent_pipe.fileno(),

2562

GLib.IO_IN | GLib.IO_HUP,

2746

2563

functools.partial(self.handle_ipc,

2747

2564

parent_pipe=parent_pipe,

2748

2565

proc=proc))

2761

2578

request = parent_pipe.recv()

2762

2579

command = request[0]

2763

2580

2764

if command == "init":

2765

key_id = request[1].decode("ascii")

2766

fpr = request[2].decode("ascii")

2767

address = request[3]

2581

if command == 'init':

2582

fpr = request[1].decode("ascii")

2583

address = request[2]

2768

2584

2769

2585

for c in self.clients.values():

2770

if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"

2771

"27AE41E4649B934CA495991B7852B855"):

2772

continue

2773

if key_id and c.key_id == key_id:

2774

client = c

2775

break

2776

if fpr and c.fingerprint == fpr:

2586

if c.fingerprint == fpr:

2777

2587

client = c

2778

2588

break

2779

2589

else:

2780

log.info("Client not found for key ID: %s, address:"

2781

" %s", key_id or fpr, address)

2590

logger.info("Client not found for fingerprint: %s, ad"

2591

"dress: %s", fpr, address)

2782

2592

if self.use_dbus:

2783

2593

# Emit D-Bus signal

2784

mandos_dbus_service.ClientNotFound(key_id or fpr,

2594

mandos_dbus_service.ClientNotFound(fpr,

2785

2595

address[0])

2786

2596

parent_pipe.send(False)

2787

2597

return False

2788

2598

2789

2599

GLib.io_add_watch(

2790

GLib.IOChannel.unix_new(parent_pipe.fileno()),

2791

GLib.PRIORITY_DEFAULT, GLib.IO_IN | GLib.IO_HUP,

2600

parent_pipe.fileno(),

2601

GLib.IO_IN | GLib.IO_HUP,

2792

2602

functools.partial(self.handle_ipc,

2793

2603

parent_pipe=parent_pipe,

2794

2604

proc=proc,

2797

2607

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

2798

2608

# same fileno

2799

2609

return False

2800

if command == "funcall":

2610

if command == 'funcall':

2801

2611

funcname = request[1]

2802

2612

args = request[2]

2803

2613

kwargs = request[3]

2804

2614

2805

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

2615

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

2806

2616

funcname)(*args,

2807

2617

**kwargs)))

2808

2618

2809

if command == "getattr":

2619

if command == 'getattr':

2810

2620

attrname = request[1]

2811

2621

if isinstance(client_object.__getattribute__(attrname),

2812

collections.abc.Callable):

2813

parent_pipe.send(("function", ))

2622

collections.Callable):

2623

parent_pipe.send(('function', ))

2814

2624

else:

2815

2625

parent_pipe.send((

2816

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

2626

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

2817

2627

2818

if command == "setattr":

2628

if command == 'setattr':

2819

2629

attrname = request[1]

2820

2630

value = request[2]

2821

2631

setattr(client_object, attrname, value)

2826

2636

def rfc3339_duration_to_delta(duration):

2827

2637

"""Parse an RFC 3339 "duration" and return a datetime.timedelta

2828

2638

2829

>>> timedelta = datetime.timedelta

2830

>>> rfc3339_duration_to_delta("P7D") == timedelta(7)

2831

True

2832

>>> rfc3339_duration_to_delta("PT60S") == timedelta(0, 60)

2833

True

2834

>>> rfc3339_duration_to_delta("PT60M") == timedelta(0, 3600)

2835

True

2836

>>> rfc3339_duration_to_delta("PT24H") == timedelta(1)

2837

True

2838

>>> rfc3339_duration_to_delta("P1W") == timedelta(7)

2839

True

2840

>>> rfc3339_duration_to_delta("PT5M30S") == timedelta(0, 330)

2841

True

2842

>>> rfc3339_duration_to_delta("P1DT3M20S") == timedelta(1, 200)

2843

True

2844

>>> del timedelta

2639

>>> rfc3339_duration_to_delta("P7D")

2640

datetime.timedelta(7)

2641

>>> rfc3339_duration_to_delta("PT60S")

2642

datetime.timedelta(0, 60)

2643

>>> rfc3339_duration_to_delta("PT60M")

2644

datetime.timedelta(0, 3600)

2645

>>> rfc3339_duration_to_delta("PT24H")

2646

datetime.timedelta(1)

2647

>>> rfc3339_duration_to_delta("P1W")

2648

datetime.timedelta(7)

2649

>>> rfc3339_duration_to_delta("PT5M30S")

2650

datetime.timedelta(0, 330)

2651

>>> rfc3339_duration_to_delta("P1DT3M20S")

2652

datetime.timedelta(1, 200)

2845

2653

"""

2846

2654

2847

2655

# Parsing an RFC 3339 duration with regular expressions is not

2927

2735

def string_to_delta(interval):

2928

2736

"""Parse a string and return a datetime.timedelta

2929

2737

2930

>>> string_to_delta("7d") == datetime.timedelta(7)

2931

True

2932

>>> string_to_delta("60s") == datetime.timedelta(0, 60)

2933

True

2934

>>> string_to_delta("60m") == datetime.timedelta(0, 3600)

2935

True

2936

>>> string_to_delta("24h") == datetime.timedelta(1)

2937

True

2938

>>> string_to_delta("1w") == datetime.timedelta(7)

2939

True

2940

>>> string_to_delta("5m 30s") == datetime.timedelta(0, 330)

2941

True

2738

>>> string_to_delta('7d')

2739

datetime.timedelta(7)

2740

>>> string_to_delta('60s')

2741

datetime.timedelta(0, 60)

2742

>>> string_to_delta('60m')

2743

datetime.timedelta(0, 3600)

2744

>>> string_to_delta('24h')

2745

datetime.timedelta(1)

2746

>>> string_to_delta('1w')

2747

datetime.timedelta(7)

2748

>>> string_to_delta('5m 30s')

2749

datetime.timedelta(0, 330)

2942

2750

"""

2943

2751

2944

2752

try:

3046

2854

3047

2855

options = parser.parse_args()

3048

2856

2857

if options.check:

2858

import doctest

2859

fail_count, test_count = doctest.testmod()

2860

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

2861

3049

2862

# Default values for config file for server-global settings

3050

if gnutls.has_rawpk:

3051

priority = ("SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA"

3052

":!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA")

3053

else:

3054

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

3055

":+SIGN-DSA-SHA256")

3056

2863

server_defaults = {"interface": "",

3057

2864

"address": "",

3058

2865

"port": "",

3059

2866

"debug": "False",

3060

"priority": priority,

2867

"priority":

2868

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

2869

":+SIGN-DSA-SHA256",

3061

2870

"servicename": "Mandos",

3062

2871

"use_dbus": "True",

3063

2872

"use_ipv6": "True",

3068

2877

"foreground": "False",

3069

2878

"zeroconf": "True",

3070

2879

}

3071

del priority

3072

2880

3073

2881

# Parse config file for server-global settings

3074

server_config = configparser.ConfigParser(server_defaults)

2882

server_config = configparser.SafeConfigParser(server_defaults)

3075

2883

del server_defaults

3076

2884

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

3077

# Convert the ConfigParser object to a dict

2885

# Convert the SafeConfigParser object to a dict

3078

2886

server_settings = server_config.defaults()

3079

2887

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

3080

2888

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

3147

2955

3148

2956

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

3149

2957

syslogger.setFormatter(

3150

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

3151

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

2958

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

2959

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

3152

2960

server_settings["servicename"])))

3153

2961

3154

2962

# Parse config file with clients

3155

client_config = configparser.ConfigParser(Client.client_defaults)

2963

client_config = configparser.SafeConfigParser(Client

2964

.client_defaults)

3156

2965

client_config.read(os.path.join(server_settings["configdir"],

3157

2966

"clients.conf"))

3158

2967

3178

2987

try:

3179

2988

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

3180

2989

except IOError as e:

3181

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

3182

exc_info=e)

2990

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

2991

exc_info=e)

3183

2992

3184

2993

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

3185

2994

("mandos", "mandos"),

3196

3005

try:

3197

3006

os.setgid(gid)

3198

3007

os.setuid(uid)

3199

log.debug("Did setuid/setgid to %s:%s", uid, gid)

3008

if debug:

3009

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

3010

gid))

3200

3011

except OSError as error:

3201

log.warning("Failed to setuid/setgid to %s:%s: %s", uid, gid,

3202

os.strerror(error.errno))

3012

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

3013

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

3203

3014

if error.errno != errno.EPERM:

3204

3015

raise

3205

3016

3212

3023

3213

3024

@gnutls.log_func

3214

3025

def debug_gnutls(level, string):

3215

log.debug("GnuTLS: %s",

3216

string[:-1].decode("utf-8", errors="replace"))

3026

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

3217

3027

3218

3028

gnutls.global_set_log_function(debug_gnutls)

3219

3029

3228

3038

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

3229

3039

daemon()

3230

3040

3231

if gi.version_info < (3, 10, 2):

3232

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

3233

# need to inform GLib that threads will be used.

3234

GLib.threads_init()

3041

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

3042

# to inform GLib that threads will be used.

3043

GLib.threads_init()

3235

3044

3236

3045

global main_loop

3237

3046

# From the Avahi example code

3248

3057

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

3249

3058

do_not_queue=True)

3250

3059

except dbus.exceptions.DBusException as e:

3251

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

3060

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

3252

3061

use_dbus = False

3253

3062

server_settings["use_dbus"] = False

3254

3063

tcp_server.use_dbus = False

3313

3122

if isinstance(s, bytes)

3314

3123

else s) for s in

3315

3124

value["client_structure"]]

3316

# .name, .host, and .checker_command

3317

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

3125

# .name & .host

3126

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

3318

3127

if isinstance(value[k], bytes):

3319

3128

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

3320

if "key_id" not in value:

3321

value["key_id"] = ""

3322

elif "fingerprint" not in value:

3323

value["fingerprint"] = ""

3324

3129

# old_client_settings

3325

3130

# .keys()

3326

3131

old_client_settings = {

3330

3135

for key, value in

3331

3136

bytes_old_client_settings.items()}

3332

3137

del bytes_old_client_settings

3333

# .host and .checker_command

3138

# .host

3334

3139

for value in old_client_settings.values():

3335

for attribute in ("host", "checker_command"):

3336

if isinstance(value[attribute], bytes):

3337

value[attribute] = (value[attribute]

3338

.decode("utf-8"))

3140

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

3141

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

3142

.decode("utf-8"))

3339

3143

os.remove(stored_state_path)

3340

3144

except IOError as e:

3341

3145

if e.errno == errno.ENOENT:

3342

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

3343

" %s", os.strerror(e.errno))

3146

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

3147

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

3344

3148

else:

3345

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

3346

exc_info=e)

3149

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

3150

exc_info=e)

3347

3151

raise

3348

3152

except EOFError as e:

3349

log.warning("Could not load persistent state: EOFError:",

3350

exc_info=e)

3153

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

3154

"EOFError:",

3155

exc_info=e)

3351

3156

3352

3157

with PGPEngine() as pgp:

3353

3158

for client_name, client in clients_data.items():

3380

3185

if client["enabled"]:

3381

3186

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

3382

3187

if not client["last_checked_ok"]:

3383

log.warning("disabling client %s - Client"

3384

" never performed a successful"

3385

" checker", client_name)

3188

logger.warning(

3189

"disabling client {} - Client never "

3190

"performed a successful checker".format(

3191

client_name))

3386

3192

client["enabled"] = False

3387

3193

elif client["last_checker_status"] != 0:

3388

log.warning("disabling client %s - Client"

3389

" last checker failed with error"

3390

" code %s", client_name,

3391

client["last_checker_status"])

3194

logger.warning(

3195

"disabling client {} - Client last"

3196

" checker failed with error code"

3197

" {}".format(

3198

client_name,

3199

client["last_checker_status"]))

3392

3200

client["enabled"] = False

3393

3201

else:

3394

3202

client["expires"] = (

3395

3203

datetime.datetime.utcnow()

3396

3204

+ client["timeout"])

3397

log.debug("Last checker succeeded, keeping %s"

3398

" enabled", client_name)

3205

logger.debug("Last checker succeeded,"

3206

" keeping {} enabled".format(

3207

client_name))

3399

3208

try:

3400

3209

client["secret"] = pgp.decrypt(

3401

3210

client["encrypted_secret"],

3402

3211

client_settings[client_name]["secret"])

3403

3212

except PGPError:

3404

3213

# If decryption fails, we use secret from new settings

3405

log.debug("Failed to decrypt %s old secret",

3406

client_name)

3214

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

3215

client_name))

3407

3216

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

3408

3217

["secret"])

3409

3218

3423

3232

server_settings=server_settings)

3424

3233

3425

3234

if not tcp_server.clients:

3426

log.warning("No clients defined")

3235

logger.warning("No clients defined")

3427

3236

3428

3237

if not foreground:

3429

3238

if pidfile is not None:

3432

3241

with pidfile:

3433

3242

print(pid, file=pidfile)

3434

3243

except IOError:

3435

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

3436

pidfilename, pid)

3244

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

3245

pidfilename, pid)

3437

3246

del pidfile

3438

3247

del pidfilename

3439

3248

3459

3268

pass

3460

3269

3461

3270

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

3462

def ClientNotFound(self, key_id, address):

3271

def ClientNotFound(self, fingerprint, address):

3463

3272

"D-Bus signal"

3464

3273

pass

3465

3274

3589

3398

3590

3399

try:

3591

3400

with tempfile.NamedTemporaryFile(

3592

mode="wb",

3401

mode='wb',

3593

3402

suffix=".pickle",

3594

prefix="clients-",

3403

prefix='clients-',

3595

3404

dir=os.path.dirname(stored_state_path),

3596

3405

delete=False) as stored_state:

3597

3406

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

3605

3414

except NameError:

3606

3415

pass

3607

3416

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

3608

log.warning("Could not save persistent state: %s",

3609

os.strerror(e.errno))

3417

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

3418

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

3610

3419

else:

3611

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

3612

exc_info=e)

3420

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

3421

exc_info=e)

3613

3422

raise

3614

3423

3615

3424

# Delete all clients, and settings from config

3632

3441

mandos_dbus_service.client_added_signal(client)

3633

3442

# Need to initiate checking of clients

3634

3443

if client.enabled:

3635

client.init_checker(randomize_start=True)

3444

client.init_checker()

3636

3445

3637

3446

tcp_server.enable()

3638

3447

tcp_server.server_activate()

3641

3450

if zeroconf:

3642

3451

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

3643

3452

if use_ipv6:

3644

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

3645

" scope_id %d", *tcp_server.socket.getsockname())

3453

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

3454

" flowinfo %d, scope_id %d",

3455

*tcp_server.socket.getsockname())

3646

3456

else: # IPv4

3647

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

3648

*tcp_server.socket.getsockname())

3457

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

3458

*tcp_server.socket.getsockname())

3649

3459

3650

3460

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

3651

3461

3655

3465

try:

3656

3466

service.activate()

3657

3467

except dbus.exceptions.DBusException as error:

3658

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

3468

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

3659

3469

cleanup()

3660

3470

sys.exit(1)

3661

3471

# End of Avahi example code

3662

3472

3663

GLib.io_add_watch(

3664

GLib.IOChannel.unix_new(tcp_server.fileno()),

3665

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

3666

lambda *args, **kwargs: (tcp_server.handle_request

3667

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

3473

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

3474

lambda *args, **kwargs:

3475

(tcp_server.handle_request

3476

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

3668

3477

3669

log.debug("Starting main loop")

3478

logger.debug("Starting main loop")

3670

3479

main_loop.run()

3671

3480

except AvahiError as error:

3672

log.critical("Avahi Error", exc_info=error)

3481

logger.critical("Avahi Error", exc_info=error)

3673

3482

cleanup()

3674

3483

sys.exit(1)

3675

3484

except KeyboardInterrupt:

3676

3485

if debug:

3677

3486

print("", file=sys.stderr)

3678

log.debug("Server received KeyboardInterrupt")

3679

log.debug("Server exiting")

3487

logger.debug("Server received KeyboardInterrupt")

3488

logger.debug("Server exiting")

3680

3489

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

3681

3490

cleanup()

3682

3491

3683

3684

def parse_test_args():

3685

# type: () -> argparse.Namespace

3686

parser = argparse.ArgumentParser(add_help=False)

3687

parser.add_argument("--check", action="store_true")

3688

parser.add_argument("--prefix", )

3689

args, unknown_args = parser.parse_known_args()

3690

if args.check:

3691

# Remove test options from sys.argv

3692

sys.argv[1:] = unknown_args

3693

return args

3694

3695

# Add all tests from doctest strings

3696

def load_tests(loader, tests, none):

3697

import doctest

3698

tests.addTests(doctest.DocTestSuite())

3699

return tests

3700

3701

if __name__ == "__main__":

3702

options = parse_test_args()

3703

try:

3704

if options.check:

3705

extra_test_prefix = options.prefix

3706

if extra_test_prefix is not None:

3707

if not (unittest.main(argv=[""], exit=False)

3708

.result.wasSuccessful()):

3709

sys.exit(1)

3710

class ExtraTestLoader(unittest.TestLoader):

3711

testMethodPrefix = extra_test_prefix

3712

# Call using ./scriptname --test [--verbose]

3713

unittest.main(argv=[""], testLoader=ExtraTestLoader())

3714

else:

3715

unittest.main(argv=[""])

3716

else:

3717

main()

3718

finally:

3719

logging.shutdown()

3720

3721

# Local Variables:

3722

# run-tests:

3723

# (lambda (&optional extra)

3724

# (if (not (funcall run-tests-in-test-buffer default-directory

3725

# extra))

3726

# (funcall show-test-buffer-in-test-window)

3727

# (funcall remove-test-window)

3728

# (if extra (message "Extra tests run successfully!"))))

3729

# run-tests-in-test-buffer:

3730

# (lambda (dir &optional extra)

3731

# (with-current-buffer (get-buffer-create "*Test*")

3732

# (setq buffer-read-only nil

3733

# default-directory dir)

3734

# (erase-buffer)

3735

# (compilation-mode))

3736

# (let ((process-result

3737

# (let ((inhibit-read-only t))

3738

# (process-file-shell-command

3739

# (funcall get-command-line extra) nil "*Test*"))))

3740

# (and (numberp process-result)

3741

# (= process-result 0))))

3742

# get-command-line:

3743

# (lambda (&optional extra)

3744

# (let ((quoted-script

3745

# (shell-quote-argument (funcall get-script-name))))

3746

# (format

3747

# (concat "%s --check" (if extra " --prefix=atest" ""))

3748

# quoted-script)))

3749

# get-script-name:

3750

# (lambda ()

3751

# (if (fboundp 'file-local-name)

3752

# (file-local-name (buffer-file-name))

3753

# (or (file-remote-p (buffer-file-name) 'localname)

3754

# (buffer-file-name))))

3755

# remove-test-window:

3756

# (lambda ()

3757

# (let ((test-window (get-buffer-window "*Test*")))

3758

# (if test-window (delete-window test-window))))

3759

# show-test-buffer-in-test-window:

3760

# (lambda ()

3761

# (when (not (get-buffer-window-list "*Test*"))

3762

# (setq next-error-last-buffer (get-buffer "*Test*"))

3763

# (let* ((side (if (>= (window-width) 146) 'right 'bottom))

3764

# (display-buffer-overriding-action

3765

# `((display-buffer-in-side-window) (side . ,side)

3766

# (window-height . fit-window-to-buffer)

3767

# (window-width . fit-window-to-buffer))))

3768

# (display-buffer "*Test*"))))

3769

# eval:

3770

# (progn

3771

# (let* ((run-extra-tests (lambda () (interactive)

3772

# (funcall run-tests t)))

3773

# (inner-keymap `(keymap (116 . ,run-extra-tests))) ; t

3774

# (outer-keymap `(keymap (3 . ,inner-keymap)))) ; C-c

3775

# (setq minor-mode-overriding-map-alist

3776

# (cons `(run-tests . ,outer-keymap)

3777

# minor-mode-overriding-map-alist)))

3778

# (add-hook 'after-save-hook run-tests 90 t))

3779

# End:

3492

3493

if __name__ == '__main__':

3494

main()