/mandos/release : revision 237.7.751

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#!/usr/bin/python3 -bI

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

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# -*- mode: python; after-save-hook: (lambda () (let ((command (if (fboundp 'file-local-name) (file-local-name (buffer-file-name)) (or (file-remote-p (buffer-file-name) 'localname) (buffer-file-name))))) (if (= (progn (if (get-buffer "*Test*") (kill-buffer "*Test*")) (process-file-shell-command (format "%s --check" (shell-quote-argument command)) nil "*Test*")) 0) (let ((w (get-buffer-window "*Test*"))) (if w (delete-window w))) (progn (with-current-buffer "*Test*" (compilation-mode)) (display-buffer "*Test*" '(display-buffer-in-side-window)))))); 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 unittest

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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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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 = 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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if sys.version_info < (3, 2):

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configparser.Configparser = configparser.SafeConfigParser

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version = "1.8.16"

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version = "1.8.9"

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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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logger = logging.getLogger()

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

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syslogger = None

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

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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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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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404

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"""

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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.")

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

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

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

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str(error))

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

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str(error))

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

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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)

471

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:

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log.error(bad_states[state])

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logger.error(bad_states[state])

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else:

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

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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:

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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"

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" 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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else:

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if error is None:

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

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

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else:

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

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

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def activate(self):

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

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class AvahiServiceToSyslog(AvahiService):

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

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

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

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**kwargs)

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

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syslogger.setFormatter(logging.Formatter(

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

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

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.format(self.name)))

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return ret

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OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h

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# Types

565

class _session_int(ctypes.Structure):

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class session_int(ctypes.Structure):

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_fields_ = []

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session_t = ctypes.POINTER(_session_int)

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session_t = ctypes.POINTER(session_int)

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569

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class certificate_credentials_st(ctypes.Structure):

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_fields_ = []

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566

certificate_type_t = ctypes.c_int

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567

575

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class datum_t(ctypes.Structure):

576

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

577

("size", ctypes.c_uint)]

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

570

('size', ctypes.c_uint)]

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571

579

class _openpgp_crt_int(ctypes.Structure):

572

class openpgp_crt_int(ctypes.Structure):

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_fields_ = []

581

openpgp_crt_t = ctypes.POINTER(_openpgp_crt_int)

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openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)

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openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h

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

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credentials_type_t = ctypes.c_int

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# gnutls.strerror()

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self.code = code

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if message is None and code is not None:

596

message = gnutls.strerror(code).decode(

597

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

589

message = gnutls.strerror(code)

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

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591

message, *args)

600

592

601

593

class CertificateSecurityError(Error):

602

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pass

603

595

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

596

# Classes

630

class Credentials(With_from_param):

597

class Credentials:

631

598

def __init__(self):

632

self._as_parameter_ = gnutls.certificate_credentials_t()

633

gnutls.certificate_allocate_credentials(self)

599

self._c_object = gnutls.certificate_credentials_t()

600

gnutls.certificate_allocate_credentials(

601

ctypes.byref(self._c_object))

634

602

self.type = gnutls.CRD_CERTIFICATE

635

603

636

604

def __del__(self):

637

gnutls.certificate_free_credentials(self)

605

gnutls.certificate_free_credentials(self._c_object)

638

606

639

class ClientSession(With_from_param):

607

class ClientSession:

640

608

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

641

self._as_parameter_ = gnutls.session_t()

609

self._c_object = gnutls.session_t()

642

610

gnutls_flags = gnutls.CLIENT

643

611

if gnutls.check_version(b"3.5.6"):

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612

gnutls_flags |= gnutls.NO_TICKETS

645

613

if gnutls.has_rawpk:

646

614

gnutls_flags |= gnutls.ENABLE_RAWPK

647

gnutls.init(self, gnutls_flags)

615

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

648

616

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)

617

gnutls.set_default_priority(self._c_object)

618

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

619

gnutls.handshake_set_private_extensions(self._c_object,

620

True)

652

621

self.socket = socket

653

622

if credentials is None:

654

623

credentials = gnutls.Credentials()

655

gnutls.credentials_set(self, credentials.type,

656

credentials)

624

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

625

ctypes.cast(credentials._c_object,

626

ctypes.c_void_p))

657

627

self.credentials = credentials

658

628

659

629

def __del__(self):

660

gnutls.deinit(self)

630

gnutls.deinit(self._c_object)

661

631

662

632

def handshake(self):

663

return gnutls.handshake(self)

633

return gnutls.handshake(self._c_object)

664

634

665

635

def send(self, data):

666

636

data = bytes(data)

667

637

data_len = len(data)

668

638

while data_len > 0:

669

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

639

data_len -= gnutls.record_send(self._c_object,

640

data[-data_len:],

670

641

data_len)

671

642

672

643

def bye(self):

673

return gnutls.bye(self, gnutls.SHUT_RDWR)

644

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

674

645

675

646

# Error handling functions

676

647

def _error_code(result):

677

648

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

678

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

679

if result >= gnutls.E_SUCCESS:

649

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

650

if result >= 0:

680

651

return result

681

652

if result == gnutls.E_NO_CERTIFICATE_FOUND:

682

653

raise gnutls.CertificateSecurityError(code=result)

683

654

raise gnutls.Error(code=result)

684

655

685

def _retry_on_error(result, func, arguments,

686

_error_code=_error_code):

656

def _retry_on_error(result, func, arguments):

687

657

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

688

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

689

while result < gnutls.E_SUCCESS:

658

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

659

while result < 0:

690

660

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

691

661

return _error_code(result)

692

662

result = func(*arguments)

697

667

698

668

# Functions

699

669

priority_set_direct = _library.gnutls_priority_set_direct

700

priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,

670

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

701

671

ctypes.POINTER(ctypes.c_char_p)]

702

672

priority_set_direct.restype = _error_code

703

673

704

674

init = _library.gnutls_init

705

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

675

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

706

676

init.restype = _error_code

707

677

708

678

set_default_priority = _library.gnutls_set_default_priority

709

set_default_priority.argtypes = [ClientSession]

679

set_default_priority.argtypes = [session_t]

710

680

set_default_priority.restype = _error_code

711

681

712

682

record_send = _library.gnutls_record_send

713

record_send.argtypes = [ClientSession, ctypes.c_void_p,

683

record_send.argtypes = [session_t, ctypes.c_void_p,

714

684

ctypes.c_size_t]

715

685

record_send.restype = ctypes.c_ssize_t

716

686

record_send.errcheck = _retry_on_error

718

688

certificate_allocate_credentials = (

719

689

_library.gnutls_certificate_allocate_credentials)

720

690

certificate_allocate_credentials.argtypes = [

721

PointerTo(Credentials)]

691

ctypes.POINTER(certificate_credentials_t)]

722

692

certificate_allocate_credentials.restype = _error_code

723

693

724

694

certificate_free_credentials = (

725

695

_library.gnutls_certificate_free_credentials)

726

certificate_free_credentials.argtypes = [Credentials]

696

certificate_free_credentials.argtypes = [

697

certificate_credentials_t]

727

698

certificate_free_credentials.restype = None

728

699

729

700

handshake_set_private_extensions = (

730

701

_library.gnutls_handshake_set_private_extensions)

731

handshake_set_private_extensions.argtypes = [ClientSession,

702

handshake_set_private_extensions.argtypes = [session_t,

732

703

ctypes.c_int]

733

704

handshake_set_private_extensions.restype = None

734

705

735

706

credentials_set = _library.gnutls_credentials_set

736

credentials_set.argtypes = [ClientSession, credentials_type_t,

737

CastToVoidPointer(Credentials)]

707

credentials_set.argtypes = [session_t, credentials_type_t,

708

ctypes.c_void_p]

738

709

credentials_set.restype = _error_code

739

710

740

711

strerror = _library.gnutls_strerror

742

713

strerror.restype = ctypes.c_char_p

743

714

744

715

certificate_type_get = _library.gnutls_certificate_type_get

745

certificate_type_get.argtypes = [ClientSession]

716

certificate_type_get.argtypes = [session_t]

746

717

certificate_type_get.restype = _error_code

747

718

748

719

certificate_get_peers = _library.gnutls_certificate_get_peers

749

certificate_get_peers.argtypes = [ClientSession,

720

certificate_get_peers.argtypes = [session_t,

750

721

ctypes.POINTER(ctypes.c_uint)]

751

722

certificate_get_peers.restype = ctypes.POINTER(datum_t)

752

723

759

730

global_set_log_function.restype = None

760

731

761

732

deinit = _library.gnutls_deinit

762

deinit.argtypes = [ClientSession]

733

deinit.argtypes = [session_t]

763

734

deinit.restype = None

764

735

765

736

handshake = _library.gnutls_handshake

766

handshake.argtypes = [ClientSession]

767

handshake.restype = ctypes.c_int

737

handshake.argtypes = [session_t]

738

handshake.restype = _error_code

768

739

handshake.errcheck = _retry_on_error

769

740

770

741

transport_set_ptr = _library.gnutls_transport_set_ptr

771

transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]

742

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

772

743

transport_set_ptr.restype = None

773

744

774

745

bye = _library.gnutls_bye

775

bye.argtypes = [ClientSession, close_request_t]

776

bye.restype = ctypes.c_int

746

bye.argtypes = [session_t, close_request_t]

747

bye.restype = _error_code

777

748

bye.errcheck = _retry_on_error

778

749

779

750

check_version = _library.gnutls_check_version

796

767

797

768

x509_crt_fmt_t = ctypes.c_int

798

769

799

# All the function declarations below are from

800

# gnutls/abstract.h

770

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

801

771

pubkey_init = _library.gnutls_pubkey_init

802

772

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

803

773

pubkey_init.restype = _error_code

817

787

pubkey_deinit.argtypes = [pubkey_t]

818

788

pubkey_deinit.restype = None

819

789

else:

820

# All the function declarations below are from

821

# gnutls/openpgp.h

790

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

822

791

823

792

openpgp_crt_init = _library.gnutls_openpgp_crt_init

824

793

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

830

799

openpgp_crt_fmt_t]

831

800

openpgp_crt_import.restype = _error_code

832

801

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

]

802

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

803

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

804

ctypes.POINTER(ctypes.c_uint)]

840

805

openpgp_crt_verify_self.restype = _error_code

841

806

842

807

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

853

818

854

819

if check_version(b"3.6.4"):

855

820

certificate_type_get2 = _library.gnutls_certificate_type_get2

856

certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]

821

certificate_type_get2.argtypes = [session_t, ctypes.c_int]

857

822

certificate_type_get2.restype = _error_code

858

823

859

824

# Remove non-public functions

875

840

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

876

841

877

842

Attributes:

878

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

843

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

879

844

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

880

845

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

881

846

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

882

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

847

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

883

848

running.

884

849

checker_callback_tag: a GLib event source tag, or None

885

850

checker_command: string; External command which is run to check

1009

974

self.last_enabled = None

1010

975

self.expires = None

1011

976

1012

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

1013

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

1014

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

977

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

978

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

979

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

1015

980

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

1016

981

datetime.datetime.utcnow())

1017

982

1045

1010

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

1046

1011

# Already enabled

1047

1012

return

1013

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

1048

1014

self.enabled = True

1049

1015

self.last_enabled = datetime.datetime.utcnow()

1050

1016

self.init_checker()

1055

1021

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

1056

1022

return False

1057

1023

if not quiet:

1058

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

1024

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

1059

1025

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

1060

1026

GLib.source_remove(self.disable_initiator_tag)

1061

1027

self.disable_initiator_tag = None

1073

1039

def __del__(self):

1074

1040

self.disable()

1075

1041

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.

1042

def init_checker(self):

1043

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

1044

# and every interval from then on.

1081

1045

if self.checker_initiator_tag is not None:

1082

1046

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

1047

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

1048

random.randrange(int(self.interval.total_seconds() * 1000

1049

+ 1)),

1050

self.start_checker)

1051

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

1100

1052

if self.disable_initiator_tag is not None:

1101

1053

GLib.source_remove(self.disable_initiator_tag)

1102

1054

self.disable_initiator_tag = GLib.timeout_add(

1103

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

1104

self.disable)

1055

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

1056

# Also start a new checker *right now*.

1057

self.start_checker()

1105

1058

1106

1059

def checker_callback(self, source, condition, connection,

1107

1060

command):

1118

1071

self.last_checker_status = returncode

1119

1072

self.last_checker_signal = None

1120

1073

if self.last_checker_status == 0:

1121

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

1074

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

1075

vars(self))

1122

1076

self.checked_ok()

1123

1077

else:

1124

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

1078

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

1125

1079

else:

1126

1080

self.last_checker_status = -1

1127

1081

self.last_checker_signal = -returncode

1128

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

1082

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

1083

vars(self))

1129

1084

return False

1130

1085

1131

1086

def checked_ok(self):

1150

1105

def need_approval(self):

1151

1106

self.last_approval_request = datetime.datetime.utcnow()

1152

1107

1153

def start_checker(self, start_was_randomized=False):

1108

def start_checker(self):

1154

1109

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

1155

1110

1156

1111

If a checker already exists, leave it running and do

1165

1120

# should be.

1166

1121

1167

1122

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

1168

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

1123

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

1169

1124

self.checker.join()

1170

1125

self.checker = None

1171

1126

# Start a new checker if needed

1172

1127

if self.checker is None:

1173

1128

# Escape attributes for the shell

1174

1129

escaped_attrs = {

1175

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

1130

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

1176

1131

for attr in self.runtime_expansions}

1177

1132

try:

1178

1133

command = self.checker_command % escaped_attrs

1179

1134

except TypeError as error:

1180

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

1181

self.checker_command, exc_info=error)

1135

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

1136

self.checker_command,

1137

exc_info=error)

1182

1138

return True # Try again later

1183

1139

self.current_checker_command = command

1184

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

1140

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

1141

self.name)

1185

1142

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

1186

1143

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

1187

1144

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

1206

1163

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

1207

1164

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

1208

1165

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

1166

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

1221

1167

return True

1222

1168

1227

1173

self.checker_callback_tag = None

1228

1174

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

1229

1175

return

1230

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

1176

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

1231

1177

self.checker.terminate()

1232

1178

self.checker = None

1233

1179

1260

1206

func._dbus_name = func.__name__

1261

1207

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

1262

1208

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

1263

func._dbus_get_args_options = {"byte_arrays": byte_arrays}

1209

func._dbus_get_args_options = {'byte_arrays': byte_arrays}

1264

1210

return func

1265

1211

1266

1212

return decorator

1355

1301

1356

1302

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1357

1303

out_signature="s",

1358

path_keyword="object_path",

1359

connection_keyword="connection")

1304

path_keyword='object_path',

1305

connection_keyword='connection')

1360

1306

def Introspect(self, object_path, connection):

1361

1307

"""Overloading of standard D-Bus method.

1362

1308

1411

1357

document.unlink()

1412

1358

except (AttributeError, xml.dom.DOMException,

1413

1359

xml.parsers.expat.ExpatError) as error:

1414

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

1415

exc_info=error)

1360

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

1361

exc_info=error)

1416

1362

return xmlstring

1417

1363

1418

1364

1515

1461

1516

1462

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1517

1463

out_signature="s",

1518

path_keyword="object_path",

1519

connection_keyword="connection")

1464

path_keyword='object_path',

1465

connection_keyword='connection')

1520

1466

def Introspect(self, object_path, connection):

1521

1467

"""Overloading of standard D-Bus method.

1522

1468

1578

1524

document.unlink()

1579

1525

except (AttributeError, xml.dom.DOMException,

1580

1526

xml.parsers.expat.ExpatError) as error:

1581

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

1582

exc_info=error)

1527

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

1528

exc_info=error)

1583

1529

return xmlstring

1584

1530

1585

1531

1617

1563

1618

1564

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1619

1565

out_signature="s",

1620

path_keyword="object_path",

1621

connection_keyword="connection")

1566

path_keyword='object_path',

1567

connection_keyword='connection')

1622

1568

def Introspect(self, object_path, connection):

1623

1569

"""Overloading of standard D-Bus method.

1624

1570

1649

1595

document.unlink()

1650

1596

except (AttributeError, xml.dom.DOMException,

1651

1597

xml.parsers.expat.ExpatError) as error:

1652

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

1653

exc_info=error)

1598

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

1599

exc_info=error)

1654

1600

return xmlstring

1655

1601

1656

1602

2290

2236

class ProxyClient:

2291

2237

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

2292

2238

self._pipe = child_pipe

2293

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

2239

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

2294

2240

if not self._pipe.recv():

2295

2241

raise KeyError(key_id or fpr)

2296

2242

2297

2243

def __getattribute__(self, name):

2298

if name == "_pipe":

2244

if name == '_pipe':

2299

2245

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

2300

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

2246

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

2301

2247

data = self._pipe.recv()

2302

if data[0] == "data":

2248

if data[0] == 'data':

2303

2249

return data[1]

2304

if data[0] == "function":

2250

if data[0] == 'function':

2305

2251

2306

2252

def func(*args, **kwargs):

2307

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

2253

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

2308

2254

return self._pipe.recv()[1]

2309

2255

2310

2256

return func

2311

2257

2312

2258

def __setattr__(self, name, value):

2313

if name == "_pipe":

2259

if name == '_pipe':

2314

2260

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

2315

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

2261

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

2316

2262

2317

2263

2318

2264

class ClientHandler(socketserver.BaseRequestHandler, object):

2323

2269

2324

2270

def handle(self):

2325

2271

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())

2272

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

2273

str(self.client_address))

2274

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

2275

self.server.child_pipe.fileno())

2329

2276

2330

2277

session = gnutls.ClientSession(self.request)

2331

2278

2332

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

2279

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

2333

2280

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

2334

2281

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

2335

2282

# "+DHE-DSS"))

2337

2284

priority = self.server.gnutls_priority

2338

2285

if priority is None:

2339

2286

priority = "NORMAL"

2340

gnutls.priority_set_direct(session,

2341

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

2287

gnutls.priority_set_direct(session._c_object,

2288

priority.encode("utf-8"),

2289

None)

2342

2290

2343

2291

# Start communication using the Mandos protocol

2344

2292

# Get protocol number

2345

2293

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

2346

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

2294

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

2347

2295

try:

2348

2296

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

2349

2297

raise RuntimeError(line)

2350

2298

except (ValueError, IndexError, RuntimeError) as error:

2351

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

2299

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

2352

2300

return

2353

2301

2354

2302

# Start GnuTLS connection

2355

2303

try:

2356

2304

session.handshake()

2357

2305

except gnutls.Error as error:

2358

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

2306

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

2359

2307

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

2360

2308

# established. Just abandon the request.

2361

2309

return

2362

log.debug("Handshake succeeded")

2310

logger.debug("Handshake succeeded")

2363

2311

2364

2312

approval_required = False

2365

2313

try:

2369

2317

key_id = self.key_id(

2370

2318

self.peer_certificate(session))

2371

2319

except (TypeError, gnutls.Error) as error:

2372

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

2320

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

2373

2321

return

2374

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

2375

key_id.decode("utf-8",

2376

errors="replace"))

2322

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

2377

2323

2378

2324

else:

2379

2325

key_id = b""

2381

2327

fpr = self.fingerprint(

2382

2328

self.peer_certificate(session))

2383

2329

except (TypeError, gnutls.Error) as error:

2384

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

2330

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

2385

2331

return

2386

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

2332

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

2387

2333

2388

2334

try:

2389

2335

client = ProxyClient(child_pipe, key_id, fpr,

2398

2344

2399

2345

while True:

2400

2346

if not client.enabled:

2401

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

2347

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

2348

client.name)

2402

2349

if self.server.use_dbus:

2403

2350

# Emit D-Bus signal

2404

2351

client.Rejected("Disabled")

2408

2355

# We are approved or approval is disabled

2409

2356

break

2410

2357

elif client.approved is None:

2411

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

2412

client.name)

2358

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

2359

client.name)

2413

2360

if self.server.use_dbus:

2414

2361

# Emit D-Bus signal

2415

2362

client.NeedApproval(

2416

2363

client.approval_delay.total_seconds()

2417

2364

* 1000, client.approved_by_default)

2418

2365

else:

2419

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

2420

client.name)

2366

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

2367

client.name)

2421

2368

if self.server.use_dbus:

2422

2369

# Emit D-Bus signal

2423

2370

client.Rejected("Denied")

2431

2378

time2 = datetime.datetime.now()

2432

2379

if (time2 - time) >= delay:

2433

2380

if not client.approved_by_default:

2434

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

2435

" waiting for approval",

2436

client.name)

2381

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

2382

" waiting for approval",

2383

client.name)

2437

2384

if self.server.use_dbus:

2438

2385

# Emit D-Bus signal

2439

2386

client.Rejected("Approval timed out")

2446

2393

try:

2447

2394

session.send(client.secret)

2448

2395

except gnutls.Error as error:

2449

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

2396

logger.warning("gnutls send failed",

2397

exc_info=error)

2450

2398

return

2451

2399

2452

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

2400

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

2453

2401

# bump the timeout using extended_timeout

2454

2402

client.bump_timeout(client.extended_timeout)

2455

2403

if self.server.use_dbus:

2462

2410

try:

2463

2411

session.bye()

2464

2412

except gnutls.Error as error:

2465

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

2413

logger.warning("GnuTLS bye failed",

2414

exc_info=error)

2466

2415

2467

2416

@staticmethod

2468

2417

def peer_certificate(session):

2469

2418

"Return the peer's certificate as a bytestring"

2470

2419

try:

2471

cert_type = gnutls.certificate_type_get2(

2472

session, gnutls.CTYPE_PEERS)

2420

cert_type = gnutls.certificate_type_get2(session._c_object,

2421

gnutls.CTYPE_PEERS)

2473

2422

except AttributeError:

2474

cert_type = gnutls.certificate_type_get(session)

2423

cert_type = gnutls.certificate_type_get(session._c_object)

2475

2424

if gnutls.has_rawpk:

2476

2425

valid_cert_types = frozenset((gnutls.CRT_RAWPK,))

2477

2426

else:

2478

2427

valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))

2479

2428

# If not a valid certificate type...

2480

2429

if cert_type not in valid_cert_types:

2481

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

2482

valid_cert_types)

2430

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

2431

valid_cert_types)

2483

2432

# ...return invalid data

2484

2433

return b""

2485

2434

list_size = ctypes.c_uint(1)

2486

2435

cert_list = (gnutls.certificate_get_peers

2487

(session, ctypes.byref(list_size)))

2436

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

2488

2437

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

2489

2438

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

2490

2439

if list_size.value == 0:

2512

2461

buf = ctypes.create_string_buffer(32)

2513

2462

buf_len = ctypes.c_size_t(len(buf))

2514

2463

# 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))

2464

gnutls.pubkey_get_key_id(pubkey,

2465

gnutls.KEYID_USE_SHA256,

2466

ctypes.cast(ctypes.byref(buf),

2467

ctypes.POINTER(ctypes.c_ubyte)),

2468

ctypes.byref(buf_len))

2521

2469

# Deinit the certificate

2522

2470

gnutls.pubkey_deinit(pubkey)

2523

2471

2604

2552

2605

2553

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

2606

2554

socketserver.TCPServer):

2607

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

2555

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

2608

2556

2609

2557

Attributes:

2610

2558

enabled: Boolean; whether this server is activated yet

2661

2609

if SO_BINDTODEVICE is None:

2662

2610

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

2663

2611

# common enough.

2664

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

2612

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

2665

2613

SO_BINDTODEVICE = 25

2666

2614

try:

2667

2615

self.socket.setsockopt(

2669

2617

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

2670

2618

except socket.error as error:

2671

2619

if error.errno == errno.EPERM:

2672

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

2673

self.interface)

2620

logger.error("No permission to bind to"

2621

" interface %s", self.interface)

2674

2622

elif error.errno == errno.ENOPROTOOPT:

2675

log.error("SO_BINDTODEVICE not available; cannot"

2676

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

2623

logger.error("SO_BINDTODEVICE not available;"

2624

" cannot bind to interface %s",

2625

self.interface)

2677

2626

elif error.errno == errno.ENODEV:

2678

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

2679

" bind", self.interface)

2627

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

2628

" cannot bind", self.interface)

2680

2629

else:

2681

2630

raise

2682

2631

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

2761

2710

request = parent_pipe.recv()

2762

2711

command = request[0]

2763

2712

2764

if command == "init":

2713

if command == 'init':

2765

2714

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

2766

2715

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

2767

2716

address = request[3]

2768

2717

2769

2718

for c in self.clients.values():

2770

if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"

2771

"27AE41E4649B934CA495991B7852B855"):

2719

if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":

2772

2720

continue

2773

2721

if key_id and c.key_id == key_id:

2774

2722

client = c

2777

2725

client = c

2778

2726

break

2779

2727

else:

2780

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

2781

" %s", key_id or fpr, address)

2728

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

2729

": %s", key_id or fpr, address)

2782

2730

if self.use_dbus:

2783

2731

# Emit D-Bus signal

2784

2732

mandos_dbus_service.ClientNotFound(key_id or fpr,

2797

2745

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

2798

2746

# same fileno

2799

2747

return False

2800

if command == "funcall":

2748

if command == 'funcall':

2801

2749

funcname = request[1]

2802

2750

args = request[2]

2803

2751

kwargs = request[3]

2804

2752

2805

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

2753

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

2806

2754

funcname)(*args,

2807

2755

**kwargs)))

2808

2756

2809

if command == "getattr":

2757

if command == 'getattr':

2810

2758

attrname = request[1]

2811

2759

if isinstance(client_object.__getattribute__(attrname),

2812

2760

collections.abc.Callable):

2813

parent_pipe.send(("function", ))

2761

parent_pipe.send(('function', ))

2814

2762

else:

2815

2763

parent_pipe.send((

2816

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

2764

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

2817

2765

2818

if command == "setattr":

2766

if command == 'setattr':

2819

2767

attrname = request[1]

2820

2768

value = request[2]

2821

2769

setattr(client_object, attrname, value)

2826

2774

def rfc3339_duration_to_delta(duration):

2827

2775

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

2828

2776

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

2777

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

2778

True

2779

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

2780

True

2781

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

2782

True

2783

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

2784

True

2785

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

2786

True

2787

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

2788

True

2789

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

2790

True

2845

2791

"""

2846

2792

2847

2793

# Parsing an RFC 3339 duration with regular expressions is not

2927

2873

def string_to_delta(interval):

2928

2874

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

2929

2875

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)

2876

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

2877

True

2878

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

2879

True

2880

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

2881

True

2882

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

2883

True

2884

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

2885

True

2886

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

2941

2887

True

2942

2888

"""

2943

2889

3147

3093

3148

3094

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

3149

3095

syslogger.setFormatter(

3150

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

3151

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

3096

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

3097

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

3152

3098

server_settings["servicename"])))

3153

3099

3154

3100

# Parse config file with clients

3178

3124

try:

3179

3125

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

3180

3126

except IOError as e:

3181

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

3182

exc_info=e)

3127

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

3128

exc_info=e)

3183

3129

3184

3130

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

3185

3131

("mandos", "mandos"),

3196

3142

try:

3197

3143

os.setgid(gid)

3198

3144

os.setuid(uid)

3199

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

3145

if debug:

3146

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

3147

gid))

3200

3148

except OSError as error:

3201

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

3202

os.strerror(error.errno))

3149

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

3150

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

3203

3151

if error.errno != errno.EPERM:

3204

3152

raise

3205

3153

3212

3160

3213

3161

@gnutls.log_func

3214

3162

def debug_gnutls(level, string):

3215

log.debug("GnuTLS: %s",

3216

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

3163

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

3217

3164

3218

3165

gnutls.global_set_log_function(debug_gnutls)

3219

3166

3248

3195

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

3249

3196

do_not_queue=True)

3250

3197

except dbus.exceptions.DBusException as e:

3251

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

3198

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

3252

3199

use_dbus = False

3253

3200

server_settings["use_dbus"] = False

3254

3201

tcp_server.use_dbus = False

3339

3286

os.remove(stored_state_path)

3340

3287

except IOError as e:

3341

3288

if e.errno == errno.ENOENT:

3342

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

3343

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

3289

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

3290

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

3344

3291

else:

3345

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

3346

exc_info=e)

3292

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

3293

exc_info=e)

3347

3294

raise

3348

3295

except EOFError as e:

3349

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

3350

exc_info=e)

3296

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

3297

"EOFError:",

3298

exc_info=e)

3351

3299

3352

3300

with PGPEngine() as pgp:

3353

3301

for client_name, client in clients_data.items():

3380

3328

if client["enabled"]:

3381

3329

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

3382

3330

if not client["last_checked_ok"]:

3383

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

3384

" never performed a successful"

3385

" checker", client_name)

3331

logger.warning(

3332

"disabling client {} - Client never "

3333

"performed a successful checker".format(

3334

client_name))

3386

3335

client["enabled"] = False

3387

3336

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"])

3337

logger.warning(

3338

"disabling client {} - Client last"

3339

" checker failed with error code"

3340

" {}".format(

3341

client_name,

3342

client["last_checker_status"]))

3392

3343

client["enabled"] = False

3393

3344

else:

3394

3345

client["expires"] = (

3395

3346

datetime.datetime.utcnow()

3396

3347

+ client["timeout"])

3397

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

3398

" enabled", client_name)

3348

logger.debug("Last checker succeeded,"

3349

" keeping {} enabled".format(

3350

client_name))

3399

3351

try:

3400

3352

client["secret"] = pgp.decrypt(

3401

3353

client["encrypted_secret"],

3402

3354

client_settings[client_name]["secret"])

3403

3355

except PGPError:

3404

3356

# If decryption fails, we use secret from new settings

3405

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

3406

client_name)

3357

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

3358

client_name))

3407

3359

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

3408

3360

["secret"])

3409

3361

3423

3375

server_settings=server_settings)

3424

3376

3425

3377

if not tcp_server.clients:

3426

log.warning("No clients defined")

3378

logger.warning("No clients defined")

3427

3379

3428

3380

if not foreground:

3429

3381

if pidfile is not None:

3432

3384

with pidfile:

3433

3385

print(pid, file=pidfile)

3434

3386

except IOError:

3435

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

3436

pidfilename, pid)

3387

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

3388

pidfilename, pid)

3437

3389

del pidfile

3438

3390

del pidfilename

3439

3391

3589

3541

3590

3542

try:

3591

3543

with tempfile.NamedTemporaryFile(

3592

mode="wb",

3544

mode='wb',

3593

3545

suffix=".pickle",

3594

prefix="clients-",

3546

prefix='clients-',

3595

3547

dir=os.path.dirname(stored_state_path),

3596

3548

delete=False) as stored_state:

3597

3549

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

3605

3557

except NameError:

3606

3558

pass

3607

3559

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

3608

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

3609

os.strerror(e.errno))

3560

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

3561

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

3610

3562

else:

3611

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

3612

exc_info=e)

3563

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

3564

exc_info=e)

3613

3565

raise

3614

3566

3615

3567

# Delete all clients, and settings from config

3632

3584

mandos_dbus_service.client_added_signal(client)

3633

3585

# Need to initiate checking of clients

3634

3586

if client.enabled:

3635

client.init_checker(randomize_start=True)

3587

client.init_checker()

3636

3588

3637

3589

tcp_server.enable()

3638

3590

tcp_server.server_activate()

3641

3593

if zeroconf:

3642

3594

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

3643

3595

if use_ipv6:

3644

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

3645

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

3596

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

3597

" flowinfo %d, scope_id %d",

3598

*tcp_server.socket.getsockname())

3646

3599

else: # IPv4

3647

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

3648

*tcp_server.socket.getsockname())

3600

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

3601

*tcp_server.socket.getsockname())

3649

3602

3650

3603

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

3651

3604

3655

3608

try:

3656

3609

service.activate()

3657

3610

except dbus.exceptions.DBusException as error:

3658

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

3611

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

3659

3612

cleanup()

3660

3613

sys.exit(1)

3661

3614

# End of Avahi example code

3666

3619

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

3667

3620

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

3668

3621

3669

log.debug("Starting main loop")

3622

logger.debug("Starting main loop")

3670

3623

main_loop.run()

3671

3624

except AvahiError as error:

3672

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

3625

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

3673

3626

cleanup()

3674

3627

sys.exit(1)

3675

3628

except KeyboardInterrupt:

3676

3629

if debug:

3677

3630

print("", file=sys.stderr)

3678

log.debug("Server received KeyboardInterrupt")

3679

log.debug("Server exiting")

3631

logger.debug("Server received KeyboardInterrupt")

3632

logger.debug("Server exiting")

3680

3633

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

3681

3634

cleanup()

3682

3635

3683

3636

3684

def parse_test_args():

3685

# type: () -> argparse.Namespace

3637

def should_only_run_tests():

3686

3638

parser = argparse.ArgumentParser(add_help=False)

3687

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

3688

parser.add_argument("--prefix", )

3639

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

3689

3640

args, unknown_args = parser.parse_known_args()

3690

if args.check:

3691

# Remove test options from sys.argv

3641

run_tests = args.check

3642

if run_tests:

3643

# Remove --check argument from sys.argv

3692

3644

sys.argv[1:] = unknown_args

3693

return args

3645

return run_tests

3694

3646

3695

3647

# Add all tests from doctest strings

3696

3648

def load_tests(loader, tests, none):

3698

3650

tests.addTests(doctest.DocTestSuite())

3699

3651

return tests

3700

3652

3701

if __name__ == "__main__":

3702

options = parse_test_args()

3653

if __name__ == '__main__':

3703

3654

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=[""])

3655

if should_only_run_tests():

3656

# Call using ./mandos --check [--verbose]

3657

unittest.main()

3716

3658

else:

3717

3659

main()

3718

3660

finally:

3719

3661

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: