/mandos/trunk : revision 1201

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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.Callable

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except AttributeError:

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class abc:

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Callable = collections.Callable

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collections.abc = abc

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del abc

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# Add shlex.quote if it does not exist

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try:

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shlex.quote

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except AttributeError:

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shlex.quote = re.escape

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# Show warnings by default

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if not sys.warnoptions:

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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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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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403

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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)

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

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bad_states = {

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avahi.SERVER_INVALID: "Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

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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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certificate_type_t = ctypes.c_int

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class datum_t(ctypes.Structure):

576

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

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("size", ctypes.c_uint)]

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

561

('size', ctypes.c_uint)]

578

562

579

class _openpgp_crt_int(ctypes.Structure):

563

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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577

# gnutls.strerror()

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self.code = code

595

579

if message is None and code is not None:

596

message = gnutls.strerror(code).decode(

597

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

580

message = gnutls.strerror(code)

598

581

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

599

582

message, *args)

600

583

601

584

class CertificateSecurityError(Error):

602

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pass

603

586

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

587

# Classes

630

class Credentials(With_from_param):

588

class Credentials:

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589

def __init__(self):

632

self._as_parameter_ = gnutls.certificate_credentials_t()

633

gnutls.certificate_allocate_credentials(self)

590

self._c_object = gnutls.certificate_credentials_t()

591

gnutls.certificate_allocate_credentials(

592

ctypes.byref(self._c_object))

634

593

self.type = gnutls.CRD_CERTIFICATE

635

594

636

595

def __del__(self):

637

gnutls.certificate_free_credentials(self)

596

gnutls.certificate_free_credentials(self._c_object)

638

597

639

class ClientSession(With_from_param):

598

class ClientSession:

640

599

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

641

self._as_parameter_ = gnutls.session_t()

600

self._c_object = gnutls.session_t()

642

601

gnutls_flags = gnutls.CLIENT

643

602

if gnutls.check_version(b"3.5.6"):

644

603

gnutls_flags |= gnutls.NO_TICKETS

645

604

if gnutls.has_rawpk:

646

605

gnutls_flags |= gnutls.ENABLE_RAWPK

647

gnutls.init(self, gnutls_flags)

606

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

648

607

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)

608

gnutls.set_default_priority(self._c_object)

609

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

610

gnutls.handshake_set_private_extensions(self._c_object,

611

True)

652

612

self.socket = socket

653

613

if credentials is None:

654

614

credentials = gnutls.Credentials()

655

gnutls.credentials_set(self, credentials.type,

656

credentials)

615

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

616

ctypes.cast(credentials._c_object,

617

ctypes.c_void_p))

657

618

self.credentials = credentials

658

619

659

620

def __del__(self):

660

gnutls.deinit(self)

621

gnutls.deinit(self._c_object)

661

622

662

623

def handshake(self):

663

return gnutls.handshake(self)

624

return gnutls.handshake(self._c_object)

664

625

665

626

def send(self, data):

666

627

data = bytes(data)

667

628

data_len = len(data)

668

629

while data_len > 0:

669

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

630

data_len -= gnutls.record_send(self._c_object,

631

data[-data_len:],

670

632

data_len)

671

633

672

634

def bye(self):

673

return gnutls.bye(self, gnutls.SHUT_RDWR)

635

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

674

636

675

637

# Error handling functions

676

638

def _error_code(result):

677

639

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

678

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

679

if result >= gnutls.E_SUCCESS:

640

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

641

if result >= 0:

680

642

return result

681

643

if result == gnutls.E_NO_CERTIFICATE_FOUND:

682

644

raise gnutls.CertificateSecurityError(code=result)

683

645

raise gnutls.Error(code=result)

684

646

685

def _retry_on_error(result, func, arguments,

686

_error_code=_error_code):

647

def _retry_on_error(result, func, arguments):

687

648

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

688

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

689

while result < gnutls.E_SUCCESS:

649

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

650

while result < 0:

690

651

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

691

652

return _error_code(result)

692

653

result = func(*arguments)

697

658

698

659

# Functions

699

660

priority_set_direct = _library.gnutls_priority_set_direct

700

priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,

661

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

701

662

ctypes.POINTER(ctypes.c_char_p)]

702

663

priority_set_direct.restype = _error_code

703

664

704

665

init = _library.gnutls_init

705

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

666

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

706

667

init.restype = _error_code

707

668

708

669

set_default_priority = _library.gnutls_set_default_priority

709

set_default_priority.argtypes = [ClientSession]

670

set_default_priority.argtypes = [session_t]

710

671

set_default_priority.restype = _error_code

711

672

712

673

record_send = _library.gnutls_record_send

713

record_send.argtypes = [ClientSession, ctypes.c_void_p,

674

record_send.argtypes = [session_t, ctypes.c_void_p,

714

675

ctypes.c_size_t]

715

676

record_send.restype = ctypes.c_ssize_t

716

677

record_send.errcheck = _retry_on_error

718

679

certificate_allocate_credentials = (

719

680

_library.gnutls_certificate_allocate_credentials)

720

681

certificate_allocate_credentials.argtypes = [

721

PointerTo(Credentials)]

682

ctypes.POINTER(certificate_credentials_t)]

722

683

certificate_allocate_credentials.restype = _error_code

723

684

724

685

certificate_free_credentials = (

725

686

_library.gnutls_certificate_free_credentials)

726

certificate_free_credentials.argtypes = [Credentials]

687

certificate_free_credentials.argtypes = [

688

certificate_credentials_t]

727

689

certificate_free_credentials.restype = None

728

690

729

691

handshake_set_private_extensions = (

730

692

_library.gnutls_handshake_set_private_extensions)

731

handshake_set_private_extensions.argtypes = [ClientSession,

693

handshake_set_private_extensions.argtypes = [session_t,

732

694

ctypes.c_int]

733

695

handshake_set_private_extensions.restype = None

734

696

735

697

credentials_set = _library.gnutls_credentials_set

736

credentials_set.argtypes = [ClientSession, credentials_type_t,

737

CastToVoidPointer(Credentials)]

698

credentials_set.argtypes = [session_t, credentials_type_t,

699

ctypes.c_void_p]

738

700

credentials_set.restype = _error_code

739

701

740

702

strerror = _library.gnutls_strerror

742

704

strerror.restype = ctypes.c_char_p

743

705

744

706

certificate_type_get = _library.gnutls_certificate_type_get

745

certificate_type_get.argtypes = [ClientSession]

707

certificate_type_get.argtypes = [session_t]

746

708

certificate_type_get.restype = _error_code

747

709

748

710

certificate_get_peers = _library.gnutls_certificate_get_peers

749

certificate_get_peers.argtypes = [ClientSession,

711

certificate_get_peers.argtypes = [session_t,

750

712

ctypes.POINTER(ctypes.c_uint)]

751

713

certificate_get_peers.restype = ctypes.POINTER(datum_t)

752

714

759

721

global_set_log_function.restype = None

760

722

761

723

deinit = _library.gnutls_deinit

762

deinit.argtypes = [ClientSession]

724

deinit.argtypes = [session_t]

763

725

deinit.restype = None

764

726

765

727

handshake = _library.gnutls_handshake

766

handshake.argtypes = [ClientSession]

767

handshake.restype = ctypes.c_int

728

handshake.argtypes = [session_t]

729

handshake.restype = _error_code

768

730

handshake.errcheck = _retry_on_error

769

731

770

732

transport_set_ptr = _library.gnutls_transport_set_ptr

771

transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]

733

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

772

734

transport_set_ptr.restype = None

773

735

774

736

bye = _library.gnutls_bye

775

bye.argtypes = [ClientSession, close_request_t]

776

bye.restype = ctypes.c_int

737

bye.argtypes = [session_t, close_request_t]

738

bye.restype = _error_code

777

739

bye.errcheck = _retry_on_error

778

740

779

741

check_version = _library.gnutls_check_version

796

758

797

759

x509_crt_fmt_t = ctypes.c_int

798

760

799

# All the function declarations below are from

800

# gnutls/abstract.h

761

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

801

762

pubkey_init = _library.gnutls_pubkey_init

802

763

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

803

764

pubkey_init.restype = _error_code

817

778

pubkey_deinit.argtypes = [pubkey_t]

818

779

pubkey_deinit.restype = None

819

780

else:

820

# All the function declarations below are from

821

# gnutls/openpgp.h

781

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

822

782

823

783

openpgp_crt_init = _library.gnutls_openpgp_crt_init

824

784

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

830

790

openpgp_crt_fmt_t]

831

791

openpgp_crt_import.restype = _error_code

832

792

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

]

793

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

794

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

795

ctypes.POINTER(ctypes.c_uint)]

840

796

openpgp_crt_verify_self.restype = _error_code

841

797

842

798

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

853

809

854

810

if check_version(b"3.6.4"):

855

811

certificate_type_get2 = _library.gnutls_certificate_type_get2

856

certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]

812

certificate_type_get2.argtypes = [session_t, ctypes.c_int]

857

813

certificate_type_get2.restype = _error_code

858

814

859

815

# Remove non-public functions

875

831

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

876

832

877

833

Attributes:

878

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

834

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

879

835

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

880

836

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

881

837

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

882

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

838

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

883

839

running.

884

840

checker_callback_tag: a GLib event source tag, or None

885

841

checker_command: string; External command which is run to check

1009

965

self.last_enabled = None

1010

966

self.expires = None

1011

967

1012

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

1013

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

1014

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

968

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

969

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

970

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

1015

971

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

1016

972

datetime.datetime.utcnow())

1017

973

1045

1001

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

1046

1002

# Already enabled

1047

1003

return

1004

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

1048

1005

self.enabled = True

1049

1006

self.last_enabled = datetime.datetime.utcnow()

1050

1007

self.init_checker()

1055

1012

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

1056

1013

return False

1057

1014

if not quiet:

1058

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

1015

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

1059

1016

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

1060

1017

GLib.source_remove(self.disable_initiator_tag)

1061

1018

self.disable_initiator_tag = None

1073

1030

def __del__(self):

1074

1031

self.disable()

1075

1032

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.

1033

def init_checker(self):

1034

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

1035

# and every interval from then on.

1081

1036

if self.checker_initiator_tag is not None:

1082

1037

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

1038

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

1039

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

1040

+ 1)),

1041

self.start_checker)

1042

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

1100

1043

if self.disable_initiator_tag is not None:

1101

1044

GLib.source_remove(self.disable_initiator_tag)

1102

1045

self.disable_initiator_tag = GLib.timeout_add(

1103

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

1104

self.disable)

1046

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

1047

# Also start a new checker *right now*.

1048

self.start_checker()

1105

1049

1106

1050

def checker_callback(self, source, condition, connection,

1107

1051

command):

1118

1062

self.last_checker_status = returncode

1119

1063

self.last_checker_signal = None

1120

1064

if self.last_checker_status == 0:

1121

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

1065

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

1066

vars(self))

1122

1067

self.checked_ok()

1123

1068

else:

1124

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

1069

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

1125

1070

else:

1126

1071

self.last_checker_status = -1

1127

1072

self.last_checker_signal = -returncode

1128

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

1073

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

1074

vars(self))

1129

1075

return False

1130

1076

1131

1077

def checked_ok(self):

1150

1096

def need_approval(self):

1151

1097

self.last_approval_request = datetime.datetime.utcnow()

1152

1098

1153

def start_checker(self, start_was_randomized=False):

1099

def start_checker(self):

1154

1100

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

1155

1101

1156

1102

If a checker already exists, leave it running and do

1165

1111

# should be.

1166

1112

1167

1113

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

1168

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

1114

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

1169

1115

self.checker.join()

1170

1116

self.checker = None

1171

1117

# Start a new checker if needed

1172

1118

if self.checker is None:

1173

1119

# Escape attributes for the shell

1174

1120

escaped_attrs = {

1175

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

1121

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

1176

1122

for attr in self.runtime_expansions}

1177

1123

try:

1178

1124

command = self.checker_command % escaped_attrs

1179

1125

except TypeError as error:

1180

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

1181

self.checker_command, exc_info=error)

1126

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

1127

self.checker_command,

1128

exc_info=error)

1182

1129

return True # Try again later

1183

1130

self.current_checker_command = command

1184

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

1131

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

1132

self.name)

1185

1133

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

1186

1134

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

1187

1135

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

1206

1154

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

1207

1155

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

1208

1156

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

1157

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

1221

1158

return True

1222

1159

1227

1164

self.checker_callback_tag = None

1228

1165

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

1229

1166

return

1230

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

1167

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

1231

1168

self.checker.terminate()

1232

1169

self.checker = None

1233

1170

1260

1197

func._dbus_name = func.__name__

1261

1198

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

1262

1199

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

1263

func._dbus_get_args_options = {"byte_arrays": byte_arrays}

1200

func._dbus_get_args_options = {'byte_arrays': byte_arrays}

1264

1201

return func

1265

1202

1266

1203

return decorator

1355

1292

1356

1293

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1357

1294

out_signature="s",

1358

path_keyword="object_path",

1359

connection_keyword="connection")

1295

path_keyword='object_path',

1296

connection_keyword='connection')

1360

1297

def Introspect(self, object_path, connection):

1361

1298

"""Overloading of standard D-Bus method.

1362

1299

1411

1348

document.unlink()

1412

1349

except (AttributeError, xml.dom.DOMException,

1413

1350

xml.parsers.expat.ExpatError) as error:

1414

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

1415

exc_info=error)

1351

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

1352

exc_info=error)

1416

1353

return xmlstring

1417

1354

1418

1355

1515

1452

1516

1453

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1517

1454

out_signature="s",

1518

path_keyword="object_path",

1519

connection_keyword="connection")

1455

path_keyword='object_path',

1456

connection_keyword='connection')

1520

1457

def Introspect(self, object_path, connection):

1521

1458

"""Overloading of standard D-Bus method.

1522

1459

1578

1515

document.unlink()

1579

1516

except (AttributeError, xml.dom.DOMException,

1580

1517

xml.parsers.expat.ExpatError) as error:

1581

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

1582

exc_info=error)

1518

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

1519

exc_info=error)

1583

1520

return xmlstring

1584

1521

1585

1522

1617

1554

1618

1555

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1619

1556

out_signature="s",

1620

path_keyword="object_path",

1621

connection_keyword="connection")

1557

path_keyword='object_path',

1558

connection_keyword='connection')

1622

1559

def Introspect(self, object_path, connection):

1623

1560

"""Overloading of standard D-Bus method.

1624

1561

1649

1586

document.unlink()

1650

1587

except (AttributeError, xml.dom.DOMException,

1651

1588

xml.parsers.expat.ExpatError) as error:

1652

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

1653

exc_info=error)

1589

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

1590

exc_info=error)

1654

1591

return xmlstring

1655

1592

1656

1593

2290

2227

class ProxyClient:

2291

2228

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

2292

2229

self._pipe = child_pipe

2293

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

2230

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

2294

2231

if not self._pipe.recv():

2295

2232

raise KeyError(key_id or fpr)

2296

2233

2297

2234

def __getattribute__(self, name):

2298

if name == "_pipe":

2235

if name == '_pipe':

2299

2236

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

2300

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

2237

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

2301

2238

data = self._pipe.recv()

2302

if data[0] == "data":

2239

if data[0] == 'data':

2303

2240

return data[1]

2304

if data[0] == "function":

2241

if data[0] == 'function':

2305

2242

2306

2243

def func(*args, **kwargs):

2307

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

2244

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

2308

2245

return self._pipe.recv()[1]

2309

2246

2310

2247

return func

2311

2248

2312

2249

def __setattr__(self, name, value):

2313

if name == "_pipe":

2250

if name == '_pipe':

2314

2251

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

2315

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

2252

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

2316

2253

2317

2254

2318

2255

class ClientHandler(socketserver.BaseRequestHandler, object):

2323

2260

2324

2261

def handle(self):

2325

2262

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())

2263

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

2264

str(self.client_address))

2265

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

2266

self.server.child_pipe.fileno())

2329

2267

2330

2268

session = gnutls.ClientSession(self.request)

2331

2269

2332

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

2270

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

2333

2271

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

2334

2272

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

2335

2273

# "+DHE-DSS"))

2337

2275

priority = self.server.gnutls_priority

2338

2276

if priority is None:

2339

2277

priority = "NORMAL"

2340

gnutls.priority_set_direct(session,

2341

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

2278

gnutls.priority_set_direct(session._c_object,

2279

priority.encode("utf-8"),

2280

None)

2342

2281

2343

2282

# Start communication using the Mandos protocol

2344

2283

# Get protocol number

2345

2284

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

2346

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

2285

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

2347

2286

try:

2348

2287

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

2349

2288

raise RuntimeError(line)

2350

2289

except (ValueError, IndexError, RuntimeError) as error:

2351

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

2290

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

2352

2291

return

2353

2292

2354

2293

# Start GnuTLS connection

2355

2294

try:

2356

2295

session.handshake()

2357

2296

except gnutls.Error as error:

2358

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

2297

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

2359

2298

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

2360

2299

# established. Just abandon the request.

2361

2300

return

2362

log.debug("Handshake succeeded")

2301

logger.debug("Handshake succeeded")

2363

2302

2364

2303

approval_required = False

2365

2304

try:

2369

2308

key_id = self.key_id(

2370

2309

self.peer_certificate(session))

2371

2310

except (TypeError, gnutls.Error) as error:

2372

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

2311

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

2373

2312

return

2374

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

2375

key_id.decode("utf-8",

2376

errors="replace"))

2313

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

2377

2314

2378

2315

else:

2379

2316

key_id = b""

2381

2318

fpr = self.fingerprint(

2382

2319

self.peer_certificate(session))

2383

2320

except (TypeError, gnutls.Error) as error:

2384

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

2321

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

2385

2322

return

2386

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

2323

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

2387

2324

2388

2325

try:

2389

2326

client = ProxyClient(child_pipe, key_id, fpr,

2398

2335

2399

2336

while True:

2400

2337

if not client.enabled:

2401

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

2338

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

2339

client.name)

2402

2340

if self.server.use_dbus:

2403

2341

# Emit D-Bus signal

2404

2342

client.Rejected("Disabled")

2408

2346

# We are approved or approval is disabled

2409

2347

break

2410

2348

elif client.approved is None:

2411

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

2412

client.name)

2349

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

2350

client.name)

2413

2351

if self.server.use_dbus:

2414

2352

# Emit D-Bus signal

2415

2353

client.NeedApproval(

2416

2354

client.approval_delay.total_seconds()

2417

2355

* 1000, client.approved_by_default)

2418

2356

else:

2419

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

2420

client.name)

2357

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

2358

client.name)

2421

2359

if self.server.use_dbus:

2422

2360

# Emit D-Bus signal

2423

2361

client.Rejected("Denied")

2431

2369

time2 = datetime.datetime.now()

2432

2370

if (time2 - time) >= delay:

2433

2371

if not client.approved_by_default:

2434

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

2435

" waiting for approval",

2436

client.name)

2372

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

2373

" waiting for approval",

2374

client.name)

2437

2375

if self.server.use_dbus:

2438

2376

# Emit D-Bus signal

2439

2377

client.Rejected("Approval timed out")

2446

2384

try:

2447

2385

session.send(client.secret)

2448

2386

except gnutls.Error as error:

2449

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

2387

logger.warning("gnutls send failed",

2388

exc_info=error)

2450

2389

return

2451

2390

2452

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

2391

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

2453

2392

# bump the timeout using extended_timeout

2454

2393

client.bump_timeout(client.extended_timeout)

2455

2394

if self.server.use_dbus:

2462

2401

try:

2463

2402

session.bye()

2464

2403

except gnutls.Error as error:

2465

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

2404

logger.warning("GnuTLS bye failed",

2405

exc_info=error)

2466

2406

2467

2407

@staticmethod

2468

2408

def peer_certificate(session):

2469

2409

"Return the peer's certificate as a bytestring"

2470

2410

try:

2471

cert_type = gnutls.certificate_type_get2(

2472

session, gnutls.CTYPE_PEERS)

2411

cert_type = gnutls.certificate_type_get2(session._c_object,

2412

gnutls.CTYPE_PEERS)

2473

2413

except AttributeError:

2474

cert_type = gnutls.certificate_type_get(session)

2414

cert_type = gnutls.certificate_type_get(session._c_object)

2475

2415

if gnutls.has_rawpk:

2476

2416

valid_cert_types = frozenset((gnutls.CRT_RAWPK,))

2477

2417

else:

2478

2418

valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))

2479

2419

# If not a valid certificate type...

2480

2420

if cert_type not in valid_cert_types:

2481

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

2482

valid_cert_types)

2421

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

2422

valid_cert_types)

2483

2423

# ...return invalid data

2484

2424

return b""

2485

2425

list_size = ctypes.c_uint(1)

2486

2426

cert_list = (gnutls.certificate_get_peers

2487

(session, ctypes.byref(list_size)))

2427

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

2488

2428

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

2489

2429

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

2490

2430

if list_size.value == 0:

2512

2452

buf = ctypes.create_string_buffer(32)

2513

2453

buf_len = ctypes.c_size_t(len(buf))

2514

2454

# 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))

2455

gnutls.pubkey_get_key_id(pubkey,

2456

gnutls.KEYID_USE_SHA256,

2457

ctypes.cast(ctypes.byref(buf),

2458

ctypes.POINTER(ctypes.c_ubyte)),

2459

ctypes.byref(buf_len))

2521

2460

# Deinit the certificate

2522

2461

gnutls.pubkey_deinit(pubkey)

2523

2462

2604

2543

2605

2544

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

2606

2545

socketserver.TCPServer):

2607

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

2546

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

2608

2547

2609

2548

Attributes:

2610

2549

enabled: Boolean; whether this server is activated yet

2661

2600

if SO_BINDTODEVICE is None:

2662

2601

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

2663

2602

# common enough.

2664

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

2603

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

2665

2604

SO_BINDTODEVICE = 25

2666

2605

try:

2667

2606

self.socket.setsockopt(

2669

2608

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

2670

2609

except socket.error as error:

2671

2610

if error.errno == errno.EPERM:

2672

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

2673

self.interface)

2611

logger.error("No permission to bind to"

2612

" interface %s", self.interface)

2674

2613

elif error.errno == errno.ENOPROTOOPT:

2675

log.error("SO_BINDTODEVICE not available; cannot"

2676

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

2614

logger.error("SO_BINDTODEVICE not available;"

2615

" cannot bind to interface %s",

2616

self.interface)

2677

2617

elif error.errno == errno.ENODEV:

2678

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

2679

" bind", self.interface)

2618

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

2619

" cannot bind", self.interface)

2680

2620

else:

2681

2621

raise

2682

2622

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

2761

2701

request = parent_pipe.recv()

2762

2702

command = request[0]

2763

2703

2764

if command == "init":

2704

if command == 'init':

2765

2705

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

2766

2706

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

2767

2707

address = request[3]

2768

2708

2769

2709

for c in self.clients.values():

2770

if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"

2771

"27AE41E4649B934CA495991B7852B855"):

2710

if key_id == "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855":

2772

2711

continue

2773

2712

if key_id and c.key_id == key_id:

2774

2713

client = c

2777

2716

client = c

2778

2717

break

2779

2718

else:

2780

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

2781

" %s", key_id or fpr, address)

2719

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

2720

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

2782

2721

if self.use_dbus:

2783

2722

# Emit D-Bus signal

2784

2723

mandos_dbus_service.ClientNotFound(key_id or fpr,

2797

2736

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

2798

2737

# same fileno

2799

2738

return False

2800

if command == "funcall":

2739

if command == 'funcall':

2801

2740

funcname = request[1]

2802

2741

args = request[2]

2803

2742

kwargs = request[3]

2804

2743

2805

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

2744

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

2806

2745

funcname)(*args,

2807

2746

**kwargs)))

2808

2747

2809

if command == "getattr":

2748

if command == 'getattr':

2810

2749

attrname = request[1]

2811

2750

if isinstance(client_object.__getattribute__(attrname),

2812

collections.abc.Callable):

2813

parent_pipe.send(("function", ))

2751

collections.Callable):

2752

parent_pipe.send(('function', ))

2814

2753

else:

2815

2754

parent_pipe.send((

2816

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

2755

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

2817

2756

2818

if command == "setattr":

2757

if command == 'setattr':

2819

2758

attrname = request[1]

2820

2759

value = request[2]

2821

2760

setattr(client_object, attrname, value)

2826

2765

def rfc3339_duration_to_delta(duration):

2827

2766

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

2828

2767

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

2768

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

2769

True

2770

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

2771

True

2772

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

2773

True

2774

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

2775

True

2776

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

2777

True

2778

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

2779

True

2780

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

2781

True

2845

2782

"""

2846

2783

2847

2784

# Parsing an RFC 3339 duration with regular expressions is not

2927

2864

def string_to_delta(interval):

2928

2865

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

2929

2866

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)

2867

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

2868

True

2869

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

2870

True

2871

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

2872

True

2873

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

2874

True

2875

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

2876

True

2877

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

2941

2878

True

2942

2879

"""

2943

2880

3147

3084

3148

3085

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

3149

3086

syslogger.setFormatter(

3150

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

3151

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

3087

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

3088

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

3152

3089

server_settings["servicename"])))

3153

3090

3154

3091

# Parse config file with clients

3178

3115

try:

3179

3116

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

3180

3117

except IOError as e:

3181

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

3182

exc_info=e)

3118

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

3119

exc_info=e)

3183

3120

3184

3121

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

3185

3122

("mandos", "mandos"),

3196

3133

try:

3197

3134

os.setgid(gid)

3198

3135

os.setuid(uid)

3199

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

3136

if debug:

3137

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

3138

gid))

3200

3139

except OSError as error:

3201

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

3202

os.strerror(error.errno))

3140

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

3141

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

3203

3142

if error.errno != errno.EPERM:

3204

3143

raise

3205

3144

3212

3151

3213

3152

@gnutls.log_func

3214

3153

def debug_gnutls(level, string):

3215

log.debug("GnuTLS: %s",

3216

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

3154

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

3217

3155

3218

3156

gnutls.global_set_log_function(debug_gnutls)

3219

3157

3248

3186

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

3249

3187

do_not_queue=True)

3250

3188

except dbus.exceptions.DBusException as e:

3251

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

3189

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

3252

3190

use_dbus = False

3253

3191

server_settings["use_dbus"] = False

3254

3192

tcp_server.use_dbus = False

3339

3277

os.remove(stored_state_path)

3340

3278

except IOError as e:

3341

3279

if e.errno == errno.ENOENT:

3342

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

3343

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

3280

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

3281

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

3344

3282

else:

3345

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

3346

exc_info=e)

3283

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

3284

exc_info=e)

3347

3285

raise

3348

3286

except EOFError as e:

3349

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

3350

exc_info=e)

3287

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

3288

"EOFError:",

3289

exc_info=e)

3351

3290

3352

3291

with PGPEngine() as pgp:

3353

3292

for client_name, client in clients_data.items():

3380

3319

if client["enabled"]:

3381

3320

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

3382

3321

if not client["last_checked_ok"]:

3383

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

3384

" never performed a successful"

3385

" checker", client_name)

3322

logger.warning(

3323

"disabling client {} - Client never "

3324

"performed a successful checker".format(

3325

client_name))

3386

3326

client["enabled"] = False

3387

3327

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"])

3328

logger.warning(

3329

"disabling client {} - Client last"

3330

" checker failed with error code"

3331

" {}".format(

3332

client_name,

3333

client["last_checker_status"]))

3392

3334

client["enabled"] = False

3393

3335

else:

3394

3336

client["expires"] = (

3395

3337

datetime.datetime.utcnow()

3396

3338

+ client["timeout"])

3397

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

3398

" enabled", client_name)

3339

logger.debug("Last checker succeeded,"

3340

" keeping {} enabled".format(

3341

client_name))

3399

3342

try:

3400

3343

client["secret"] = pgp.decrypt(

3401

3344

client["encrypted_secret"],

3402

3345

client_settings[client_name]["secret"])

3403

3346

except PGPError:

3404

3347

# If decryption fails, we use secret from new settings

3405

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

3406

client_name)

3348

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

3349

client_name))

3407

3350

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

3408

3351

["secret"])

3409

3352

3423

3366

server_settings=server_settings)

3424

3367

3425

3368

if not tcp_server.clients:

3426

log.warning("No clients defined")

3369

logger.warning("No clients defined")

3427

3370

3428

3371

if not foreground:

3429

3372

if pidfile is not None:

3432

3375

with pidfile:

3433

3376

print(pid, file=pidfile)

3434

3377

except IOError:

3435

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

3436

pidfilename, pid)

3378

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

3379

pidfilename, pid)

3437

3380

del pidfile

3438

3381

del pidfilename

3439

3382

3589

3532

3590

3533

try:

3591

3534

with tempfile.NamedTemporaryFile(

3592

mode="wb",

3535

mode='wb',

3593

3536

suffix=".pickle",

3594

prefix="clients-",

3537

prefix='clients-',

3595

3538

dir=os.path.dirname(stored_state_path),

3596

3539

delete=False) as stored_state:

3597

3540

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

3605

3548

except NameError:

3606

3549

pass

3607

3550

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

3608

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

3609

os.strerror(e.errno))

3551

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

3552

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

3610

3553

else:

3611

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

3612

exc_info=e)

3554

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

3555

exc_info=e)

3613

3556

raise

3614

3557

3615

3558

# Delete all clients, and settings from config

3632

3575

mandos_dbus_service.client_added_signal(client)

3633

3576

# Need to initiate checking of clients

3634

3577

if client.enabled:

3635

client.init_checker(randomize_start=True)

3578

client.init_checker()

3636

3579

3637

3580

tcp_server.enable()

3638

3581

tcp_server.server_activate()

3641

3584

if zeroconf:

3642

3585

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

3643

3586

if use_ipv6:

3644

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

3645

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

3587

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

3588

" flowinfo %d, scope_id %d",

3589

*tcp_server.socket.getsockname())

3646

3590

else: # IPv4

3647

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

3648

*tcp_server.socket.getsockname())

3591

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

3592

*tcp_server.socket.getsockname())

3649

3593

3650

3594

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

3651

3595

3655

3599

try:

3656

3600

service.activate()

3657

3601

except dbus.exceptions.DBusException as error:

3658

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

3602

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

3659

3603

cleanup()

3660

3604

sys.exit(1)

3661

3605

# End of Avahi example code

3666

3610

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

3667

3611

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

3668

3612

3669

log.debug("Starting main loop")

3613

logger.debug("Starting main loop")

3670

3614

main_loop.run()

3671

3615

except AvahiError as error:

3672

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

3616

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

3673

3617

cleanup()

3674

3618

sys.exit(1)

3675

3619

except KeyboardInterrupt:

3676

3620

if debug:

3677

3621

print("", file=sys.stderr)

3678

log.debug("Server received KeyboardInterrupt")

3679

log.debug("Server exiting")

3622

logger.debug("Server received KeyboardInterrupt")

3623

logger.debug("Server exiting")

3680

3624

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

3681

3625

cleanup()

3682

3626

3683

3627

3684

def parse_test_args():

3685

# type: () -> argparse.Namespace

3628

def should_only_run_tests():

3686

3629

parser = argparse.ArgumentParser(add_help=False)

3687

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

3688

parser.add_argument("--prefix", )

3630

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

3689

3631

args, unknown_args = parser.parse_known_args()

3690

if args.check:

3691

# Remove test options from sys.argv

3632

run_tests = args.check

3633

if run_tests:

3634

# Remove --check argument from sys.argv

3692

3635

sys.argv[1:] = unknown_args

3693

return args

3636

return run_tests

3694

3637

3695

3638

# Add all tests from doctest strings

3696

3639

def load_tests(loader, tests, none):

3698

3641

tests.addTests(doctest.DocTestSuite())

3699

3642

return tests

3700

3643

3701

if __name__ == "__main__":

3702

options = parse_test_args()

3644

if __name__ == '__main__':

3703

3645

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=[""])

3646

if should_only_run_tests():

3647

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

3648

unittest.main()

3716

3649

else:

3717

3650

main()

3718

3651

finally:

3719

3652

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: