/mandos/trunk : revision 1318

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#!/usr/bin/python

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

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#!/usr/bin/python3 -bI

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

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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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40

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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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# Add os.set_inheritable if it does not exist

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try:

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os.set_inheritable

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except AttributeError:

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def set_inheritable(fd, inheritable):

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flags = fcntl.fcntl(fd, fcntl.F_GETFD)

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if inheritable and ((flags & fcntl.FD_CLOEXEC) != 0):

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fcntl.fcntl(fd, fcntl.F_SETFL, flags & ~fcntl.FD_CLOEXEC)

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elif (not inheritable) and ((flags & fcntl.FD_CLOEXEC) == 0):

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fcntl.fcntl(fd, fcntl.F_SETFL, flags | fcntl.FD_CLOEXEC)

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os.set_inheritable = set_inheritable

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del set_inheritable

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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.major == 2:

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str = unicode

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if sys.version_info < (3, 2):

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configparser.Configparser = configparser.SafeConfigParser

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version = "1.7.19"

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version = "1.8.18"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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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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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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logger.addHandler(syslogger)

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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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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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logger.addHandler(console)

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logger.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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log.addHandler(console)

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log.setLevel(level)

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class PGPError(Exception):

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pass

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class PGPEngine(object):

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class PGPEngine:

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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 == "gpg":

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

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

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

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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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def string_array_to_txt_array(self, t):

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@staticmethod

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def string_array_to_txt_array(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(object):

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class AvahiService:

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

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self.name)

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

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

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self.cleanup()

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os._exit(1)

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407

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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(

410

'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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"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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self.group.AddService(

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self.interface,

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self.protocol,

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463

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def entry_group_state_changed(self, state, error):

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

425

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

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

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467

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if state == avahi.ENTRY_GROUP_ESTABLISHED:

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logger.debug("Zeroconf service established.")

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log.debug("Zeroconf service established.")

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elif state == avahi.ENTRY_GROUP_COLLISION:

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

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

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self.rename()

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473

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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log.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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477

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478

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"""

450

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

491

log.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:

460

logger.error(bad_states[state])

501

log.error(bad_states[state])

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502

else:

462

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

503

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

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self.cleanup()

464

505

elif state == avahi.SERVER_RUNNING:

465

506

try:

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508

except dbus.exceptions.DBusException as error:

468

509

if (error.get_dbus_name()

469

510

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

470

logger.info("Local Zeroconf service name"

471

" collision.")

511

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

472

512

return self.rename(remove=False)

473

513

else:

474

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

514

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

475

515

self.cleanup()

476

516

os._exit(1)

477

517

else:

478

518

if error is None:

479

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

519

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

480

520

else:

481

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

521

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

482

522

483

523

def activate(self):

484

524

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

496

536

class AvahiServiceToSyslog(AvahiService):

497

537

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

498

538

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

499

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

539

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

540

**kwargs)

500

541

syslogger.setFormatter(logging.Formatter(

501

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

542

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

502

543

.format(self.name)))

503

544

return ret

504

545

505

546

506

547

# Pretend that we have a GnuTLS module

507

class GnuTLS(object):

508

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

509

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

548

class gnutls:

549

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

510

550

511

551

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

512

552

if library is None:

513

553

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

514

554

_library = ctypes.cdll.LoadLibrary(library)

515

555

del library

516

_need_version = b"3.3.0"

517

518

def __init__(self):

519

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

520

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

521

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

522

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

523

.format(self._need_version))

524

556

525

557

# Unless otherwise indicated, the constants and types below are

526

558

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

530

562

E_INTERRUPTED = -52

531

563

E_AGAIN = -28

532

564

CRT_OPENPGP = 2

565

CRT_RAWPK = 3

533

566

CLIENT = 2

534

567

SHUT_RDWR = 0

535

568

CRD_CERTIFICATE = 1

536

569

E_NO_CERTIFICATE_FOUND = -49

570

X509_FMT_DER = 0

571

NO_TICKETS = 1<<10

572

ENABLE_RAWPK = 1<<18

573

CTYPE_PEERS = 3

574

KEYID_USE_SHA256 = 1 # gnutls/x509.h

537

575

OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h

538

576

539

577

# Types

540

class session_int(ctypes.Structure):

578

class _session_int(ctypes.Structure):

541

579

_fields_ = []

542

session_t = ctypes.POINTER(session_int)

580

session_t = ctypes.POINTER(_session_int)

543

581

544

582

class certificate_credentials_st(ctypes.Structure):

545

583

_fields_ = []

548

586

certificate_type_t = ctypes.c_int

549

587

550

588

class datum_t(ctypes.Structure):

551

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

552

('size', ctypes.c_uint)]

589

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

590

("size", ctypes.c_uint)]

553

591

554

class openpgp_crt_int(ctypes.Structure):

592

class _openpgp_crt_int(ctypes.Structure):

555

593

_fields_ = []

556

openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)

594

openpgp_crt_t = ctypes.POINTER(_openpgp_crt_int)

557

595

openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h

558

596

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

559

597

credentials_type_t = ctypes.c_int

562

600

563

601

# Exceptions

564

602

class Error(Exception):

565

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

566

# exception might be raised from within GnuTLS.__init__,

567

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

568

# global variable has happened.

569

603

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

570

604

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

571

605

# code is passed, convert it to a string with

572

606

# gnutls.strerror()

573

607

self.code = code

574

608

if message is None and code is not None:

575

message = GnuTLS.strerror(code)

576

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

609

message = gnutls.strerror(code).decode(

610

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

611

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

577

612

message, *args)

578

613

579

614

class CertificateSecurityError(Error):

580

615

pass

581

616

617

class PointerTo:

618

def __init__(self, cls):

619

self.cls = cls

620

621

def from_param(self, obj):

622

if not isinstance(obj, self.cls):

623

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

624

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

625

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

626

627

class CastToVoidPointer:

628

def __init__(self, cls):

629

self.cls = cls

630

631

def from_param(self, obj):

632

if not isinstance(obj, self.cls):

633

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

634

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

635

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

636

637

class With_from_param:

638

@classmethod

639

def from_param(cls, obj):

640

return obj._as_parameter_

641

582

642

# Classes

583

class Credentials(object):

643

class Credentials(With_from_param):

584

644

def __init__(self):

585

self._c_object = gnutls.certificate_credentials_t()

586

gnutls.certificate_allocate_credentials(

587

ctypes.byref(self._c_object))

645

self._as_parameter_ = gnutls.certificate_credentials_t()

646

gnutls.certificate_allocate_credentials(self)

588

647

self.type = gnutls.CRD_CERTIFICATE

589

648

590

649

def __del__(self):

591

gnutls.certificate_free_credentials(self._c_object)

650

gnutls.certificate_free_credentials(self)

592

651

593

class ClientSession(object):

652

class ClientSession(With_from_param):

594

653

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

595

self._c_object = gnutls.session_t()

596

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

597

gnutls.set_default_priority(self._c_object)

598

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

599

gnutls.handshake_set_private_extensions(self._c_object,

600

True)

654

self._as_parameter_ = gnutls.session_t()

655

gnutls_flags = gnutls.CLIENT

656

if gnutls.check_version(b"3.5.6"):

657

gnutls_flags |= gnutls.NO_TICKETS

658

if gnutls.has_rawpk:

659

gnutls_flags |= gnutls.ENABLE_RAWPK

660

gnutls.init(self, gnutls_flags)

661

del gnutls_flags

662

gnutls.set_default_priority(self)

663

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

664

gnutls.handshake_set_private_extensions(self, True)

601

665

self.socket = socket

602

666

if credentials is None:

603

667

credentials = gnutls.Credentials()

604

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

605

ctypes.cast(credentials._c_object,

606

ctypes.c_void_p))

668

gnutls.credentials_set(self, credentials.type,

669

credentials)

607

670

self.credentials = credentials

608

671

609

672

def __del__(self):

610

gnutls.deinit(self._c_object)

673

gnutls.deinit(self)

611

674

612

675

def handshake(self):

613

return gnutls.handshake(self._c_object)

676

return gnutls.handshake(self)

614

677

615

678

def send(self, data):

616

679

data = bytes(data)

617

680

data_len = len(data)

618

681

while data_len > 0:

619

data_len -= gnutls.record_send(self._c_object,

620

data[-data_len:],

682

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

621

683

data_len)

622

684

623

685

def bye(self):

624

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

686

return gnutls.bye(self, gnutls.SHUT_RDWR)

625

687

626

688

# Error handling functions

627

689

def _error_code(result):

628

690

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

629

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

630

if result >= 0:

691

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

692

if result >= gnutls.E_SUCCESS:

631

693

return result

632

694

if result == gnutls.E_NO_CERTIFICATE_FOUND:

633

695

raise gnutls.CertificateSecurityError(code=result)

634

696

raise gnutls.Error(code=result)

635

697

636

def _retry_on_error(result, func, arguments):

698

def _retry_on_error(result, func, arguments,

699

_error_code=_error_code):

637

700

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

638

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

639

while result < 0:

701

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

702

while result < gnutls.E_SUCCESS:

640

703

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

641

704

return _error_code(result)

642

705

result = func(*arguments)

647

710

648

711

# Functions

649

712

priority_set_direct = _library.gnutls_priority_set_direct

650

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

713

priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,

651

714

ctypes.POINTER(ctypes.c_char_p)]

652

715

priority_set_direct.restype = _error_code

653

716

654

717

init = _library.gnutls_init

655

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

718

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

656

719

init.restype = _error_code

657

720

658

721

set_default_priority = _library.gnutls_set_default_priority

659

set_default_priority.argtypes = [session_t]

722

set_default_priority.argtypes = [ClientSession]

660

723

set_default_priority.restype = _error_code

661

724

662

725

record_send = _library.gnutls_record_send

663

record_send.argtypes = [session_t, ctypes.c_void_p,

726

record_send.argtypes = [ClientSession, ctypes.c_void_p,

664

727

ctypes.c_size_t]

665

728

record_send.restype = ctypes.c_ssize_t

666

729

record_send.errcheck = _retry_on_error

668

731

certificate_allocate_credentials = (

669

732

_library.gnutls_certificate_allocate_credentials)

670

733

certificate_allocate_credentials.argtypes = [

671

ctypes.POINTER(certificate_credentials_t)]

734

PointerTo(Credentials)]

672

735

certificate_allocate_credentials.restype = _error_code

673

736

674

737

certificate_free_credentials = (

675

738

_library.gnutls_certificate_free_credentials)

676

certificate_free_credentials.argtypes = [

677

certificate_credentials_t]

739

certificate_free_credentials.argtypes = [Credentials]

678

740

certificate_free_credentials.restype = None

679

741

680

742

handshake_set_private_extensions = (

681

743

_library.gnutls_handshake_set_private_extensions)

682

handshake_set_private_extensions.argtypes = [session_t,

744

handshake_set_private_extensions.argtypes = [ClientSession,

683

745

ctypes.c_int]

684

746

handshake_set_private_extensions.restype = None

685

747

686

748

credentials_set = _library.gnutls_credentials_set

687

credentials_set.argtypes = [session_t, credentials_type_t,

688

ctypes.c_void_p]

749

credentials_set.argtypes = [ClientSession, credentials_type_t,

750

CastToVoidPointer(Credentials)]

689

751

credentials_set.restype = _error_code

690

752

691

753

strerror = _library.gnutls_strerror

693

755

strerror.restype = ctypes.c_char_p

694

756

695

757

certificate_type_get = _library.gnutls_certificate_type_get

696

certificate_type_get.argtypes = [session_t]

758

certificate_type_get.argtypes = [ClientSession]

697

759

certificate_type_get.restype = _error_code

698

760

699

761

certificate_get_peers = _library.gnutls_certificate_get_peers

700

certificate_get_peers.argtypes = [session_t,

762

certificate_get_peers.argtypes = [ClientSession,

701

763

ctypes.POINTER(ctypes.c_uint)]

702

764

certificate_get_peers.restype = ctypes.POINTER(datum_t)

703

765

710

772

global_set_log_function.restype = None

711

773

712

774

deinit = _library.gnutls_deinit

713

deinit.argtypes = [session_t]

775

deinit.argtypes = [ClientSession]

714

776

deinit.restype = None

715

777

716

778

handshake = _library.gnutls_handshake

717

handshake.argtypes = [session_t]

718

handshake.restype = _error_code

779

handshake.argtypes = [ClientSession]

780

handshake.restype = ctypes.c_int

719

781

handshake.errcheck = _retry_on_error

720

782

721

783

transport_set_ptr = _library.gnutls_transport_set_ptr

722

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

784

transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]

723

785

transport_set_ptr.restype = None

724

786

725

787

bye = _library.gnutls_bye

726

bye.argtypes = [session_t, close_request_t]

727

bye.restype = _error_code

788

bye.argtypes = [ClientSession, close_request_t]

789

bye.restype = ctypes.c_int

728

790

bye.errcheck = _retry_on_error

729

791

730

792

check_version = _library.gnutls_check_version

731

793

check_version.argtypes = [ctypes.c_char_p]

732

794

check_version.restype = ctypes.c_char_p

733

795

734

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

735

736

openpgp_crt_init = _library.gnutls_openpgp_crt_init

737

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

738

openpgp_crt_init.restype = _error_code

739

740

openpgp_crt_import = _library.gnutls_openpgp_crt_import

741

openpgp_crt_import.argtypes = [openpgp_crt_t,

742

ctypes.POINTER(datum_t),

743

openpgp_crt_fmt_t]

744

openpgp_crt_import.restype = _error_code

745

746

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

747

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

748

ctypes.POINTER(ctypes.c_uint)]

749

openpgp_crt_verify_self.restype = _error_code

750

751

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

752

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

753

openpgp_crt_deinit.restype = None

754

755

openpgp_crt_get_fingerprint = (

756

_library.gnutls_openpgp_crt_get_fingerprint)

757

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

758

ctypes.c_void_p,

759

ctypes.POINTER(

760

ctypes.c_size_t)]

761

openpgp_crt_get_fingerprint.restype = _error_code

796

_need_version = b"3.3.0"

797

if check_version(_need_version) is None:

798

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

799

.format(_need_version))

800

801

_tls_rawpk_version = b"3.6.6"

802

has_rawpk = bool(check_version(_tls_rawpk_version))

803

804

if has_rawpk:

805

# Types

806

class pubkey_st(ctypes.Structure):

807

_fields = []

808

pubkey_t = ctypes.POINTER(pubkey_st)

809

810

x509_crt_fmt_t = ctypes.c_int

811

812

# All the function declarations below are from

813

# gnutls/abstract.h

814

pubkey_init = _library.gnutls_pubkey_init

815

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

816

pubkey_init.restype = _error_code

817

818

pubkey_import = _library.gnutls_pubkey_import

819

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

820

x509_crt_fmt_t]

821

pubkey_import.restype = _error_code

822

823

pubkey_get_key_id = _library.gnutls_pubkey_get_key_id

824

pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,

825

ctypes.POINTER(ctypes.c_ubyte),

826

ctypes.POINTER(ctypes.c_size_t)]

827

pubkey_get_key_id.restype = _error_code

828

829

pubkey_deinit = _library.gnutls_pubkey_deinit

830

pubkey_deinit.argtypes = [pubkey_t]

831

pubkey_deinit.restype = None

832

else:

833

# All the function declarations below are from

834

# gnutls/openpgp.h

835

836

openpgp_crt_init = _library.gnutls_openpgp_crt_init

837

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

838

openpgp_crt_init.restype = _error_code

839

840

openpgp_crt_import = _library.gnutls_openpgp_crt_import

841

openpgp_crt_import.argtypes = [openpgp_crt_t,

842

ctypes.POINTER(datum_t),

843

openpgp_crt_fmt_t]

844

openpgp_crt_import.restype = _error_code

845

846

openpgp_crt_verify_self = \

847

_library.gnutls_openpgp_crt_verify_self

848

openpgp_crt_verify_self.argtypes = [

849

openpgp_crt_t,

850

ctypes.c_uint,

851

ctypes.POINTER(ctypes.c_uint),

852

]

853

openpgp_crt_verify_self.restype = _error_code

854

855

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

856

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

857

openpgp_crt_deinit.restype = None

858

859

openpgp_crt_get_fingerprint = (

860

_library.gnutls_openpgp_crt_get_fingerprint)

861

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

862

ctypes.c_void_p,

863

ctypes.POINTER(

864

ctypes.c_size_t)]

865

openpgp_crt_get_fingerprint.restype = _error_code

866

867

if check_version(b"3.6.4"):

868

certificate_type_get2 = _library.gnutls_certificate_type_get2

869

certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]

870

certificate_type_get2.restype = _error_code

762

871

763

872

# Remove non-public functions

764

873

del _error_code, _retry_on_error

765

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

766

gnutls = GnuTLS()

767

874

768

875

769

876

def call_pipe(connection, # : multiprocessing.Connection

777

884

connection.close()

778

885

779

886

780

class Client(object):

887

class Client:

781

888

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

782

889

783

890

Attributes:

784

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

891

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

785

892

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

786

893

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

787

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

788

to see if the client lives.

789

'None' if no process is running.

894

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

895

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

896

running.

790

897

checker_callback_tag: a GLib event source tag, or None

791

898

checker_command: string; External command which is run to check

792

899

if client lives. %() expansions are done at

800

907

disable_initiator_tag: a GLib event source tag, or None

801

908

enabled: bool()

802

909

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

803

uniquely identify the client

910

uniquely identify an OpenPGP client

911

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

912

a client using raw public keys

804

913

host: string; available for use by the checker command

805

914

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

806

915

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

824

933

"""

825

934

826

935

runtime_expansions = ("approval_delay", "approval_duration",

827

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

936

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

828

937

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

829

938

"last_approval_request", "last_checked_ok",

830

939

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

860

969

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

861

970

"enabled")

862

971

863

# Uppercase and remove spaces from fingerprint for later

864

# comparison purposes with return value from the

865

# fingerprint() function

866

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

972

# Uppercase and remove spaces from key_id and fingerprint

973

# for later comparison purposes with return value from the

974

# key_id() and fingerprint() functions

975

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

976

.replace(" ", ""))

977

client["fingerprint"] = (section.get("fingerprint",

978

"").upper()

867

979

.replace(" ", ""))

980

if not (client["key_id"] or client["fingerprint"]):

981

log.error("Skipping client %s without key_id or"

982

" fingerprint", client_name)

983

del settings[client_name]

984

continue

868

985

if "secret" in section:

869

986

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

870

987

.encode("utf-8"),

911

1028

self.last_enabled = None

912

1029

self.expires = None

913

1030

914

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

915

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

1031

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

1032

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

1033

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

916

1034

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

917

1035

datetime.datetime.utcnow())

918

1036

946

1064

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

947

1065

# Already enabled

948

1066

return

949

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

950

1067

self.enabled = True

951

1068

self.last_enabled = datetime.datetime.utcnow()

952

1069

self.init_checker()

957

1074

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

958

1075

return False

959

1076

if not quiet:

960

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

1077

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

961

1078

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

962

1079

GLib.source_remove(self.disable_initiator_tag)

963

1080

self.disable_initiator_tag = None

975

1092

def __del__(self):

976

1093

self.disable()

977

1094

978

def init_checker(self):

979

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

980

# and every interval from then on.

1095

def init_checker(self, randomize_start=False):

1096

# Schedule a new checker to be started a randomly selected

1097

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

1098

# the startup of checkers over time when the server is

1099

# started.

981

1100

if self.checker_initiator_tag is not None:

982

1101

GLib.source_remove(self.checker_initiator_tag)

1102

interval_milliseconds = int(self.interval.total_seconds()

1103

* 1000)

1104

if randomize_start:

1105

delay_milliseconds = random.randrange(

1106

interval_milliseconds + 1)

1107

else:

1108

delay_milliseconds = interval_milliseconds

983

1109

self.checker_initiator_tag = GLib.timeout_add(

984

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

985

self.start_checker)

986

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

1110

delay_milliseconds, self.start_checker, randomize_start)

1111

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

1112

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

1113

# expire at the soonest one interval after a checker was

1114

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

1115

# time might have to be extended.

1116

now = datetime.datetime.utcnow()

1117

self.expires = now + delay + self.interval

1118

# Schedule a disable() at expire time

987

1119

if self.disable_initiator_tag is not None:

988

1120

GLib.source_remove(self.disable_initiator_tag)

989

1121

self.disable_initiator_tag = GLib.timeout_add(

990

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

991

# Also start a new checker *right now*.

992

self.start_checker()

1122

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

1123

self.disable)

993

1124

994

1125

def checker_callback(self, source, condition, connection,

995

1126

command):

996

1127

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

997

self.checker_callback_tag = None

998

self.checker = None

999

1128

# Read return code from connection (see call_pipe)

1000

1129

returncode = connection.recv()

1001

1130

connection.close()

1131

if self.checker is not None:

1132

self.checker.join()

1133

self.checker_callback_tag = None

1134

self.checker = None

1002

1135

1003

1136

if returncode >= 0:

1004

1137

self.last_checker_status = returncode

1005

1138

self.last_checker_signal = None

1006

1139

if self.last_checker_status == 0:

1007

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

1008

vars(self))

1140

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

1009

1141

self.checked_ok()

1010

1142

else:

1011

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

1143

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

1012

1144

else:

1013

1145

self.last_checker_status = -1

1014

1146

self.last_checker_signal = -returncode

1015

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

1016

vars(self))

1147

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

1017

1148

return False

1018

1149

1019

1150

def checked_ok(self):

1038

1169

def need_approval(self):

1039

1170

self.last_approval_request = datetime.datetime.utcnow()

1040

1171

1041

def start_checker(self):

1172

def start_checker(self, start_was_randomized=False):

1042

1173

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

1043

1174

1044

1175

If a checker already exists, leave it running and do

1053

1184

# should be.

1054

1185

1055

1186

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

1056

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

1187

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

1057

1188

self.checker.join()

1058

1189

self.checker = None

1059

1190

# Start a new checker if needed

1060

1191

if self.checker is None:

1061

1192

# Escape attributes for the shell

1062

1193

escaped_attrs = {

1063

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

1194

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

1064

1195

for attr in self.runtime_expansions}

1065

1196

try:

1066

1197

command = self.checker_command % escaped_attrs

1067

1198

except TypeError as error:

1068

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

1069

self.checker_command,

1070

exc_info=error)

1199

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

1200

self.checker_command, exc_info=error)

1071

1201

return True # Try again later

1072

1202

self.current_checker_command = command

1073

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

1074

self.name)

1203

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

1075

1204

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

1076

1205

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

1077

1206

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

1093

1222

kwargs=popen_args)

1094

1223

self.checker.start()

1095

1224

self.checker_callback_tag = GLib.io_add_watch(

1096

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

1225

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

1226

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

1097

1227

self.checker_callback, pipe[0], command)

1228

if start_was_randomized:

1229

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

1230

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

1231

# interval from then on.

1232

now = datetime.datetime.utcnow()

1233

self.checker_initiator_tag = GLib.timeout_add(

1234

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

1235

self.start_checker)

1236

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

1237

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

1238

return False

1098

1239

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

1099

1240

return True

1100

1241

1105

1246

self.checker_callback_tag = None

1106

1247

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

1107

1248

return

1108

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

1249

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

1109

1250

self.checker.terminate()

1110

1251

self.checker = None

1111

1252

1138

1279

func._dbus_name = func.__name__

1139

1280

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

1140

1281

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

1141

func._dbus_get_args_options = {'byte_arrays': byte_arrays}

1282

func._dbus_get_args_options = {"byte_arrays": byte_arrays}

1142

1283

return func

1143

1284

1144

1285

return decorator

1233

1374

1234

1375

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1235

1376

out_signature="s",

1236

path_keyword='object_path',

1237

connection_keyword='connection')

1377

path_keyword="object_path",

1378

connection_keyword="connection")

1238

1379

def Introspect(self, object_path, connection):

1239

1380

"""Overloading of standard D-Bus method.

1240

1381

1289

1430

document.unlink()

1290

1431

except (AttributeError, xml.dom.DOMException,

1291

1432

xml.parsers.expat.ExpatError) as error:

1292

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

1293

exc_info=error)

1433

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

1434

exc_info=error)

1294

1435

return xmlstring

1295

1436

1296

1437

1354

1495

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

1355

1496

"'ay' signature {!r}"

1356

1497

.format(prop._dbus_signature))

1357

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

1358

for byte in value))

1498

value = dbus.ByteArray(bytes(value))

1359

1499

prop(value)

1360

1500

1361

1501

@dbus.service.method(dbus.PROPERTIES_IFACE,

1394

1534

1395

1535

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1396

1536

out_signature="s",

1397

path_keyword='object_path',

1398

connection_keyword='connection')

1537

path_keyword="object_path",

1538

connection_keyword="connection")

1399

1539

def Introspect(self, object_path, connection):

1400

1540

"""Overloading of standard D-Bus method.

1401

1541

1457

1597

document.unlink()

1458

1598

except (AttributeError, xml.dom.DOMException,

1459

1599

xml.parsers.expat.ExpatError) as error:

1460

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

1461

exc_info=error)

1600

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

1601

exc_info=error)

1462

1602

return xmlstring

1463

1603

1464

1604

1496

1636

1497

1637

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1498

1638

out_signature="s",

1499

path_keyword='object_path',

1500

connection_keyword='connection')

1639

path_keyword="object_path",

1640

connection_keyword="connection")

1501

1641

def Introspect(self, object_path, connection):

1502

1642

"""Overloading of standard D-Bus method.

1503

1643

1528

1668

document.unlink()

1529

1669

except (AttributeError, xml.dom.DOMException,

1530

1670

xml.parsers.expat.ExpatError) as error:

1531

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

1532

exc_info=error)

1671

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

1672

exc_info=error)

1533

1673

return xmlstring

1534

1674

1535

1675

1999

2139

def Name_dbus_property(self):

2000

2140

return dbus.String(self.name)

2001

2141

2142

# KeyID - property

2143

@dbus_annotations(

2144

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

2145

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

2146

def KeyID_dbus_property(self):

2147

return dbus.String(self.key_id)

2148

2002

2149

# Fingerprint - property

2003

2150

@dbus_annotations(

2004

2151

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

2159

2306

del _interface

2160

2307

2161

2308

2162

class ProxyClient(object):

2163

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

2309

class ProxyClient:

2310

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

2164

2311

self._pipe = child_pipe

2165

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

2312

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

2166

2313

if not self._pipe.recv():

2167

raise KeyError(fpr)

2314

raise KeyError(key_id or fpr)

2168

2315

2169

2316

def __getattribute__(self, name):

2170

if name == '_pipe':

2317

if name == "_pipe":

2171

2318

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

2172

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

2319

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

2173

2320

data = self._pipe.recv()

2174

if data[0] == 'data':

2321

if data[0] == "data":

2175

2322

return data[1]

2176

if data[0] == 'function':

2323

if data[0] == "function":

2177

2324

2178

2325

def func(*args, **kwargs):

2179

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

2326

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

2180

2327

return self._pipe.recv()[1]

2181

2328

2182

2329

return func

2183

2330

2184

2331

def __setattr__(self, name, value):

2185

if name == '_pipe':

2332

if name == "_pipe":

2186

2333

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

2187

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

2334

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

2188

2335

2189

2336

2190

2337

class ClientHandler(socketserver.BaseRequestHandler, object):

2195

2342

2196

2343

def handle(self):

2197

2344

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

2198

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

2199

str(self.client_address))

2200

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

2201

self.server.child_pipe.fileno())

2345

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

2346

str(self.client_address))

2347

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

2202

2348

2203

2349

session = gnutls.ClientSession(self.request)

2204

2350

2205

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

2351

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

2206

2352

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

2207

2353

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

2208

2354

# "+DHE-DSS"))

2210

2356

priority = self.server.gnutls_priority

2211

2357

if priority is None:

2212

2358

priority = "NORMAL"

2213

gnutls.priority_set_direct(session._c_object,

2214

priority.encode("utf-8"),

2215

None)

2359

gnutls.priority_set_direct(session,

2360

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

2216

2361

2217

2362

# Start communication using the Mandos protocol

2218

2363

# Get protocol number

2219

2364

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

2220

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

2365

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

2221

2366

try:

2222

2367

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

2223

2368

raise RuntimeError(line)

2224

2369

except (ValueError, IndexError, RuntimeError) as error:

2225

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

2370

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

2226

2371

return

2227

2372

2228

2373

# Start GnuTLS connection

2229

2374

try:

2230

2375

session.handshake()

2231

2376

except gnutls.Error as error:

2232

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

2377

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

2233

2378

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

2234

2379

# established. Just abandon the request.

2235

2380

return

2236

logger.debug("Handshake succeeded")

2381

log.debug("Handshake succeeded")

2237

2382

2238

2383

approval_required = False

2239

2384

try:

2240

try:

2241

fpr = self.fingerprint(

2242

self.peer_certificate(session))

2243

except (TypeError, gnutls.Error) as error:

2244

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

2245

return

2246

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

2247

2248

try:

2249

client = ProxyClient(child_pipe, fpr,

2385

if gnutls.has_rawpk:

2386

fpr = b""

2387

try:

2388

key_id = self.key_id(

2389

self.peer_certificate(session))

2390

except (TypeError, gnutls.Error) as error:

2391

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

2392

return

2393

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

2394

key_id.decode("utf-8",

2395

errors="replace"))

2396

2397

else:

2398

key_id = b""

2399

try:

2400

fpr = self.fingerprint(

2401

self.peer_certificate(session))

2402

except (TypeError, gnutls.Error) as error:

2403

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

2404

return

2405

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

2406

2407

try:

2408

client = ProxyClient(child_pipe, key_id, fpr,

2250

2409

self.client_address)

2251

2410

except KeyError:

2252

2411

return

2258

2417

2259

2418

while True:

2260

2419

if not client.enabled:

2261

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

2262

client.name)

2420

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

2263

2421

if self.server.use_dbus:

2264

2422

# Emit D-Bus signal

2265

2423

client.Rejected("Disabled")

2269

2427

# We are approved or approval is disabled

2270

2428

break

2271

2429

elif client.approved is None:

2272

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

2273

client.name)

2430

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

2431

client.name)

2274

2432

if self.server.use_dbus:

2275

2433

# Emit D-Bus signal

2276

2434

client.NeedApproval(

2277

2435

client.approval_delay.total_seconds()

2278

2436

* 1000, client.approved_by_default)

2279

2437

else:

2280

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

2281

client.name)

2438

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

2439

client.name)

2282

2440

if self.server.use_dbus:

2283

2441

# Emit D-Bus signal

2284

2442

client.Rejected("Denied")

2292

2450

time2 = datetime.datetime.now()

2293

2451

if (time2 - time) >= delay:

2294

2452

if not client.approved_by_default:

2295

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

2296

" waiting for approval",

2297

client.name)

2453

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

2454

" waiting for approval",

2455

client.name)

2298

2456

if self.server.use_dbus:

2299

2457

# Emit D-Bus signal

2300

2458

client.Rejected("Approval timed out")

2307

2465

try:

2308

2466

session.send(client.secret)

2309

2467

except gnutls.Error as error:

2310

logger.warning("gnutls send failed",

2311

exc_info=error)

2468

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

2312

2469

return

2313

2470

2314

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

2471

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

2315

2472

# bump the timeout using extended_timeout

2316

2473

client.bump_timeout(client.extended_timeout)

2317

2474

if self.server.use_dbus:

2324

2481

try:

2325

2482

session.bye()

2326

2483

except gnutls.Error as error:

2327

logger.warning("GnuTLS bye failed",

2328

exc_info=error)

2484

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

2329

2485

2330

2486

@staticmethod

2331

2487

def peer_certificate(session):

2332

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

2333

# If not an OpenPGP certificate...

2334

if (gnutls.certificate_type_get(session._c_object)

2335

!= gnutls.CRT_OPENPGP):

2488

"Return the peer's certificate as a bytestring"

2489

try:

2490

cert_type = gnutls.certificate_type_get2(

2491

session, gnutls.CTYPE_PEERS)

2492

except AttributeError:

2493

cert_type = gnutls.certificate_type_get(session)

2494

if gnutls.has_rawpk:

2495

valid_cert_types = frozenset((gnutls.CRT_RAWPK,))

2496

else:

2497

valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))

2498

# If not a valid certificate type...

2499

if cert_type not in valid_cert_types:

2500

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

2501

valid_cert_types)

2336

2502

# ...return invalid data

2337

2503

return b""

2338

2504

list_size = ctypes.c_uint(1)

2339

2505

cert_list = (gnutls.certificate_get_peers

2340

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

2506

(session, ctypes.byref(list_size)))

2341

2507

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

2342

2508

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

2343

2509

if list_size.value == 0:

2346

2512

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

2347

2513

2348

2514

@staticmethod

2515

def key_id(certificate):

2516

"Convert a certificate bytestring to a hexdigit key ID"

2517

# New GnuTLS "datum" with the public key

2518

datum = gnutls.datum_t(

2519

ctypes.cast(ctypes.c_char_p(certificate),

2520

ctypes.POINTER(ctypes.c_ubyte)),

2521

ctypes.c_uint(len(certificate)))

2522

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

2523

# New empty GnuTLS certificate

2524

pubkey = gnutls.pubkey_t()

2525

gnutls.pubkey_init(ctypes.byref(pubkey))

2526

# Import the raw public key into the certificate

2527

gnutls.pubkey_import(pubkey,

2528

ctypes.byref(datum),

2529

gnutls.X509_FMT_DER)

2530

# New buffer for the key ID

2531

buf = ctypes.create_string_buffer(32)

2532

buf_len = ctypes.c_size_t(len(buf))

2533

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

2534

gnutls.pubkey_get_key_id(

2535

pubkey,

2536

gnutls.KEYID_USE_SHA256,

2537

ctypes.cast(ctypes.byref(buf),

2538

ctypes.POINTER(ctypes.c_ubyte)),

2539

ctypes.byref(buf_len))

2540

# Deinit the certificate

2541

gnutls.pubkey_deinit(pubkey)

2542

2543

# Convert the buffer to a Python bytestring

2544

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

2545

# Convert the bytestring to hexadecimal notation

2546

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

2547

return hex_key_id

2548

2549

@staticmethod

2349

2550

def fingerprint(openpgp):

2350

2551

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

2351

2552

# New GnuTLS "datum" with the OpenPGP public key

2382

2583

return hex_fpr

2383

2584

2384

2585

2385

class MultiprocessingMixIn(object):

2586

class MultiprocessingMixIn:

2386

2587

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

2387

2588

2388

2589

def sub_process_main(self, request, address):

2400

2601

return proc

2401

2602

2402

2603

2403

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

2604

class MultiprocessingMixInWithPipe(MultiprocessingMixIn):

2404

2605

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

2405

2606

2406

2607

def process_request(self, request, client_address):

2421

2622

2422

2623

2423

2624

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

2424

socketserver.TCPServer, object):

2425

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

2625

socketserver.TCPServer):

2626

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

2426

2627

2427

2628

Attributes:

2428

2629

enabled: Boolean; whether this server is activated yet

2479

2680

if SO_BINDTODEVICE is None:

2480

2681

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

2481

2682

# common enough.

2482

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

2683

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

2483

2684

SO_BINDTODEVICE = 25

2484

2685

try:

2485

2686

self.socket.setsockopt(

2487

2688

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

2488

2689

except socket.error as error:

2489

2690

if error.errno == errno.EPERM:

2490

logger.error("No permission to bind to"

2491

" interface %s", self.interface)

2691

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

2692

self.interface)

2492

2693

elif error.errno == errno.ENOPROTOOPT:

2493

logger.error("SO_BINDTODEVICE not available;"

2494

" cannot bind to interface %s",

2495

self.interface)

2694

log.error("SO_BINDTODEVICE not available; cannot"

2695

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

2496

2696

elif error.errno == errno.ENODEV:

2497

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

2498

" cannot bind", self.interface)

2697

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

2698

" bind", self.interface)

2499

2699

else:

2500

2700

raise

2501

2701

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

2502

2702

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

2703

if self.server_address[1]:

2704

self.allow_reuse_address = True

2503

2705

if not self.server_address[0]:

2504

2706

if self.address_family == socket.AF_INET6:

2505

2707

any_address = "::" # in6addr_any

2558

2760

def add_pipe(self, parent_pipe, proc):

2559

2761

# Call "handle_ipc" for both data and EOF events

2560

2762

GLib.io_add_watch(

2561

parent_pipe.fileno(),

2562

GLib.IO_IN | GLib.IO_HUP,

2763

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

2764

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

2563

2765

functools.partial(self.handle_ipc,

2564

2766

parent_pipe=parent_pipe,

2565

2767

proc=proc))

2578

2780

request = parent_pipe.recv()

2579

2781

command = request[0]

2580

2782

2581

if command == 'init':

2582

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

2583

address = request[2]

2783

if command == "init":

2784

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

2785

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

2786

address = request[3]

2584

2787

2585

2788

for c in self.clients.values():

2586

if c.fingerprint == fpr:

2789

if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"

2790

"27AE41E4649B934CA495991B7852B855"):

2791

continue

2792

if key_id and c.key_id == key_id:

2793

client = c

2794

break

2795

if fpr and c.fingerprint == fpr:

2587

2796

client = c

2588

2797

break

2589

2798

else:

2590

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

2591

"dress: %s", fpr, address)

2799

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

2800

" %s", key_id or fpr, address)

2592

2801

if self.use_dbus:

2593

2802

# Emit D-Bus signal

2594

mandos_dbus_service.ClientNotFound(fpr,

2803

mandos_dbus_service.ClientNotFound(key_id or fpr,

2595

2804

address[0])

2596

2805

parent_pipe.send(False)

2597

2806

return False

2598

2807

2599

2808

GLib.io_add_watch(

2600

parent_pipe.fileno(),

2601

GLib.IO_IN | GLib.IO_HUP,

2809

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

2810

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

2602

2811

functools.partial(self.handle_ipc,

2603

2812

parent_pipe=parent_pipe,

2604

2813

proc=proc,

2607

2816

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

2608

2817

# same fileno

2609

2818

return False

2610

if command == 'funcall':

2819

if command == "funcall":

2611

2820

funcname = request[1]

2612

2821

args = request[2]

2613

2822

kwargs = request[3]

2614

2823

2615

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

2824

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

2616

2825

funcname)(*args,

2617

2826

**kwargs)))

2618

2827

2619

if command == 'getattr':

2828

if command == "getattr":

2620

2829

attrname = request[1]

2621

2830

if isinstance(client_object.__getattribute__(attrname),

2622

collections.Callable):

2623

parent_pipe.send(('function', ))

2831

collections.abc.Callable):

2832

parent_pipe.send(("function", ))

2624

2833

else:

2625

2834

parent_pipe.send((

2626

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

2835

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

2627

2836

2628

if command == 'setattr':

2837

if command == "setattr":

2629

2838

attrname = request[1]

2630

2839

value = request[2]

2631

2840

setattr(client_object, attrname, value)

2636

2845

def rfc3339_duration_to_delta(duration):

2637

2846

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

2638

2847

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)

2848

>>> timedelta = datetime.timedelta

2849

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

2850

True

2851

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

2852

True

2853

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

2854

True

2855

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

2856

True

2857

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

2858

True

2859

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

2860

True

2861

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

2862

True

2863

>>> del timedelta

2653

2864

"""

2654

2865

2655

2866

# Parsing an RFC 3339 duration with regular expressions is not

2735

2946

def string_to_delta(interval):

2736

2947

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

2737

2948

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)

2949

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

2950

True

2951

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

2952

True

2953

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

2954

True

2955

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

2956

True

2957

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

2958

True

2959

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

2960

True

2750

2961

"""

2751

2962

2752

2963

try:

2854

3065

2855

3066

options = parser.parse_args()

2856

3067

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

2862

3068

# Default values for config file for server-global settings

3069

if gnutls.has_rawpk:

3070

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

3071

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

3072

else:

3073

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

3074

":+SIGN-DSA-SHA256")

2863

3075

server_defaults = {"interface": "",

2864

3076

"address": "",

2865

3077

"port": "",

2866

3078

"debug": "False",

2867

"priority":

2868

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

2869

":+SIGN-DSA-SHA256",

3079

"priority": priority,

2870

3080

"servicename": "Mandos",

2871

3081

"use_dbus": "True",

2872

3082

"use_ipv6": "True",

2877

3087

"foreground": "False",

2878

3088

"zeroconf": "True",

2879

3089

}

3090

del priority

2880

3091

2881

3092

# Parse config file for server-global settings

2882

server_config = configparser.SafeConfigParser(server_defaults)

3093

server_config = configparser.ConfigParser(server_defaults)

2883

3094

del server_defaults

2884

3095

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

2885

# Convert the SafeConfigParser object to a dict

3096

# Convert the ConfigParser object to a dict

2886

3097

server_settings = server_config.defaults()

2887

3098

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

2888

3099

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

2898

3109

# Later, stdin will, and stdout and stderr might, be dup'ed

2899

3110

# over with an opened os.devnull. But we don't want this to

2900

3111

# happen with a supplied network socket.

2901

if 0 <= server_settings["socket"] <= 2:

3112

while 0 <= server_settings["socket"] <= 2:

2902

3113

server_settings["socket"] = os.dup(server_settings

2903

3114

["socket"])

3115

os.set_inheritable(server_settings["socket"], False)

2904

3116

del server_config

2905

3117

2906

3118

# Override the settings from the config file with command line

2955

3167

2956

3168

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

2957

3169

syslogger.setFormatter(

2958

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

2959

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

3170

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

3171

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

2960

3172

server_settings["servicename"])))

2961

3173

2962

3174

# Parse config file with clients

2963

client_config = configparser.SafeConfigParser(Client

2964

.client_defaults)

3175

client_config = configparser.ConfigParser(Client.client_defaults)

2965

3176

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

2966

3177

"clients.conf"))

2967

3178

2987

3198

try:

2988

3199

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

2989

3200

except IOError as e:

2990

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

2991

exc_info=e)

3201

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

3202

exc_info=e)

2992

3203

2993

3204

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

2994

3205

("mandos", "mandos"),

3005

3216

try:

3006

3217

os.setgid(gid)

3007

3218

os.setuid(uid)

3008

if debug:

3009

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

3010

gid))

3219

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

3011

3220

except OSError as error:

3012

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

3013

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

3221

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

3222

os.strerror(error.errno))

3014

3223

if error.errno != errno.EPERM:

3015

3224

raise

3016

3225

3023

3232

3024

3233

@gnutls.log_func

3025

3234

def debug_gnutls(level, string):

3026

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

3235

log.debug("GnuTLS: %s",

3236

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

3027

3237

3028

3238

gnutls.global_set_log_function(debug_gnutls)

3029

3239

3038

3248

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

3039

3249

daemon()

3040

3250

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()

3251

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

3252

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

3253

# need to inform GLib that threads will be used.

3254

GLib.threads_init()

3044

3255

3045

3256

global main_loop

3046

3257

# From the Avahi example code

3047

3258

DBusGMainLoop(set_as_default=True)

3048

3259

main_loop = GLib.MainLoop()

3049

bus = dbus.SystemBus()

3260

if use_dbus or zeroconf:

3261

bus = dbus.SystemBus()

3050

3262

# End of Avahi example code

3051

3263

if use_dbus:

3052

3264

try:

3057

3269

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

3058

3270

do_not_queue=True)

3059

3271

except dbus.exceptions.DBusException as e:

3060

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

3272

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

3061

3273

use_dbus = False

3062

3274

server_settings["use_dbus"] = False

3063

3275

tcp_server.use_dbus = False

3122

3334

if isinstance(s, bytes)

3123

3335

else s) for s in

3124

3336

value["client_structure"]]

3125

# .name & .host

3126

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

3337

# .name, .host, and .checker_command

3338

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

3127

3339

if isinstance(value[k], bytes):

3128

3340

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

3341

if "key_id" not in value:

3342

value["key_id"] = ""

3343

elif "fingerprint" not in value:

3344

value["fingerprint"] = ""

3129

3345

# old_client_settings

3130

3346

# .keys()

3131

3347

old_client_settings = {

3135

3351

for key, value in

3136

3352

bytes_old_client_settings.items()}

3137

3353

del bytes_old_client_settings

3138

# .host

3354

# .host and .checker_command

3139

3355

for value in old_client_settings.values():

3140

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

3141

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

3142

.decode("utf-8"))

3356

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

3357

if isinstance(value[attribute], bytes):

3358

value[attribute] = (value[attribute]

3359

.decode("utf-8"))

3143

3360

os.remove(stored_state_path)

3144

3361

except IOError as e:

3145

3362

if e.errno == errno.ENOENT:

3146

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

3147

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

3363

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

3364

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

3148

3365

else:

3149

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

3150

exc_info=e)

3366

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

3367

exc_info=e)

3151

3368

raise

3152

3369

except EOFError as e:

3153

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

3154

"EOFError:",

3155

exc_info=e)

3370

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

3371

exc_info=e)

3156

3372

3157

3373

with PGPEngine() as pgp:

3158

3374

for client_name, client in clients_data.items():

3185

3401

if client["enabled"]:

3186

3402

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

3187

3403

if not client["last_checked_ok"]:

3188

logger.warning(

3189

"disabling client {} - Client never "

3190

"performed a successful checker".format(

3191

client_name))

3404

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

3405

" never performed a successful"

3406

" checker", client_name)

3192

3407

client["enabled"] = False

3193

3408

elif client["last_checker_status"] != 0:

3194

logger.warning(

3195

"disabling client {} - Client last"

3196

" checker failed with error code"

3197

" {}".format(

3198

client_name,

3199

client["last_checker_status"]))

3409

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

3410

" last checker failed with error"

3411

" code %s", client_name,

3412

client["last_checker_status"])

3200

3413

client["enabled"] = False

3201

3414

else:

3202

3415

client["expires"] = (

3203

3416

datetime.datetime.utcnow()

3204

3417

+ client["timeout"])

3205

logger.debug("Last checker succeeded,"

3206

" keeping {} enabled".format(

3207

client_name))

3418

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

3419

" enabled", client_name)

3208

3420

try:

3209

3421

client["secret"] = pgp.decrypt(

3210

3422

client["encrypted_secret"],

3211

3423

client_settings[client_name]["secret"])

3212

3424

except PGPError:

3213

3425

# If decryption fails, we use secret from new settings

3214

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

3215

client_name))

3426

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

3427

client_name)

3216

3428

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

3217

3429

["secret"])

3218

3430

3232

3444

server_settings=server_settings)

3233

3445

3234

3446

if not tcp_server.clients:

3235

logger.warning("No clients defined")

3447

log.warning("No clients defined")

3236

3448

3237

3449

if not foreground:

3238

3450

if pidfile is not None:

3241

3453

with pidfile:

3242

3454

print(pid, file=pidfile)

3243

3455

except IOError:

3244

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

3245

pidfilename, pid)

3456

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

3457

pidfilename, pid)

3246

3458

del pidfile

3247

3459

del pidfilename

3248

3460

3268

3480

pass

3269

3481

3270

3482

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

3271

def ClientNotFound(self, fingerprint, address):

3483

def ClientNotFound(self, key_id, address):

3272

3484

"D-Bus signal"

3273

3485

pass

3274

3486

3398

3610

3399

3611

try:

3400

3612

with tempfile.NamedTemporaryFile(

3401

mode='wb',

3613

mode="wb",

3402

3614

suffix=".pickle",

3403

prefix='clients-',

3615

prefix="clients-",

3404

3616

dir=os.path.dirname(stored_state_path),

3405

3617

delete=False) as stored_state:

3406

3618

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

3414

3626

except NameError:

3415

3627

pass

3416

3628

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

3417

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

3418

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

3629

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

3630

os.strerror(e.errno))

3419

3631

else:

3420

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

3421

exc_info=e)

3632

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

3633

exc_info=e)

3422

3634

raise

3423

3635

3424

3636

# Delete all clients, and settings from config

3441

3653

mandos_dbus_service.client_added_signal(client)

3442

3654

# Need to initiate checking of clients

3443

3655

if client.enabled:

3444

client.init_checker()

3656

client.init_checker(randomize_start=True)

3445

3657

3446

3658

tcp_server.enable()

3447

3659

tcp_server.server_activate()

3450

3662

if zeroconf:

3451

3663

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

3452

3664

if use_ipv6:

3453

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

3454

" flowinfo %d, scope_id %d",

3455

*tcp_server.socket.getsockname())

3665

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

3666

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

3456

3667

else: # IPv4

3457

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

3458

*tcp_server.socket.getsockname())

3668

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

3669

*tcp_server.socket.getsockname())

3459

3670

3460

3671

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

3461

3672

3465

3676

try:

3466

3677

service.activate()

3467

3678

except dbus.exceptions.DBusException as error:

3468

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

3679

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

3469

3680

cleanup()

3470

3681

sys.exit(1)

3471

3682

# End of Avahi example code

3472

3683

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))

3684

GLib.io_add_watch(

3685

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

3686

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

3687

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

3688

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

3477

3689

3478

logger.debug("Starting main loop")

3690

log.debug("Starting main loop")

3479

3691

main_loop.run()

3480

3692

except AvahiError as error:

3481

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

3693

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

3482

3694

cleanup()

3483

3695

sys.exit(1)

3484

3696

except KeyboardInterrupt:

3485

3697

if debug:

3486

3698

print("", file=sys.stderr)

3487

logger.debug("Server received KeyboardInterrupt")

3488

logger.debug("Server exiting")

3699

log.debug("Server received KeyboardInterrupt")

3700

log.debug("Server exiting")

3489

3701

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

3490

3702

cleanup()

3491

3703

3492

3493

if __name__ == '__main__':

3494

main()

3704

3705

def parse_test_args():

3706

# type: () -> argparse.Namespace

3707

parser = argparse.ArgumentParser(add_help=False)

3708

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

3709

parser.add_argument("--prefix", )

3710

args, unknown_args = parser.parse_known_args()

3711

if args.check:

3712

# Remove test options from sys.argv

3713

sys.argv[1:] = unknown_args

3714

return args

3715

3716

# Add all tests from doctest strings

3717

def load_tests(loader, tests, none):

3718

import doctest

3719

tests.addTests(doctest.DocTestSuite())

3720

return tests

3721

3722

if __name__ == "__main__":

3723

options = parse_test_args()

3724

try:

3725

if options.check:

3726

extra_test_prefix = options.prefix

3727

if extra_test_prefix is not None:

3728

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

3729

.result.wasSuccessful()):

3730

sys.exit(1)

3731

class ExtraTestLoader(unittest.TestLoader):

3732

testMethodPrefix = extra_test_prefix

3733

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

3734

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

3735

else:

3736

unittest.main(argv=[""])

3737

else:

3738

main()

3739

finally:

3740

logging.shutdown()

3741

3742

# Local Variables:

3743

# run-tests:

3744

# (lambda (&optional extra)

3745

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

3746

# extra))

3747

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

3748

# (funcall remove-test-window)

3749

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

3750

# run-tests-in-test-buffer:

3751

# (lambda (dir &optional extra)

3752

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

3753

# (setq buffer-read-only nil

3754

# default-directory dir)

3755

# (erase-buffer)

3756

# (compilation-mode))

3757

# (let ((process-result

3758

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

3759

# (process-file-shell-command

3760

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

3761

# (and (numberp process-result)

3762

# (= process-result 0))))

3763

# get-command-line:

3764

# (lambda (&optional extra)

3765

# (let ((quoted-script

3766

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

3767

# (format

3768

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

3769

# quoted-script)))

3770

# get-script-name:

3771

# (lambda ()

3772

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

3773

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

3774

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

3775

# (buffer-file-name))))

3776

# remove-test-window:

3777

# (lambda ()

3778

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

3779

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

3780

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

3781

# (lambda ()

3782

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

3783

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

3784

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

3785

# (display-buffer-overriding-action

3786

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

3787

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

3788

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

3789

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

3790

# eval:

3791

# (progn

3792

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

3793

# (funcall run-tests t)))

3794

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

3795

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

3796

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

3797

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

3798

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

3799

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

3800

# End: