/mandos/trunk : revision 1260

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#!/usr/bin/python

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

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#!/usr/bin/python3 -bI

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

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#

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

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#

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

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#

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# Everything else is

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#

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# This file is part of Mandos.

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#

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#

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

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#

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from __future__ import (division, absolute_import, print_function,

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unicode_literals)

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except ImportError:

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pass

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import sys

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import unittest

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import argparse

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import logging

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import os

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try:

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import SocketServer as socketserver

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except ImportError:

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import socketserver

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import socket

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import argparse

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import datetime

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import errno

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try:

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import ConfigParser as configparser

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except ImportError:

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import configparser

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import sys

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import re

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import os

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import signal

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import subprocess

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import atexit

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import stat

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import logging

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import logging.handlers

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import pwd

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import contextlib

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import itertools

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import collections

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import codecs

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import random

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import shlex

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import dbus

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import dbus.service

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import gi

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from gi.repository import GLib

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from dbus.mainloop.glib import DBusGMainLoop

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import ctypes

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import xml.dom.minidom

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import inspect

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if sys.version_info.major == 2:

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__metaclass__ = type

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str = unicode

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input = raw_input

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

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try:

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collections.abc.Callable

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except AttributeError:

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class abc:

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Callable = collections.Callable

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collections.abc = abc

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del abc

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# Add shlex.quote if it does not exist

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try:

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shlex.quote

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except AttributeError:

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shlex.quote = re.escape

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# Show warnings by default

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if not sys.warnoptions:

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import warnings

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warnings.simplefilter("default")

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# Try to find the value of SO_BINDTODEVICE:

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try:

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

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# No value found

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SO_BINDTODEVICE = None

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if sys.version_info.major == 2:

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str = unicode

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if sys.version_info < (3, 2):

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configparser.Configparser = configparser.SafeConfigParser

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version = "1.7.19"

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version = "1.8.14"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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

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

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syslogger = None

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try:

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facility=logging.handlers.SysLogHandler.LOG_DAEMON,

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address="/dev/log"))

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syslogger.setFormatter(logging.Formatter

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

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' %(message)s'))

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logger.addHandler(syslogger)

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

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" %(message)s"))

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log.addHandler(syslogger)

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if debug:

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console = logging.StreamHandler()

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

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' [%(process)d]:'

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' %(levelname)s:'

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' %(message)s'))

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logger.addHandler(console)

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logger.setLevel(level)

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

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" [%(process)d]:"

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" %(levelname)s:"

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" %(message)s"))

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log.addHandler(console)

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log.setLevel(level)

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class PGPError(Exception):

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pass

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class PGPEngine(object):

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class PGPEngine:

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

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def __init__(self):

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

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for line in output.splitlines():

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

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if name == "gpg":

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if name == b"gpg":

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self.gpg = path

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break

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except OSError as e:

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if e.errno != errno.ENOENT:

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raise

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self.gnupgargs = ['--batch',

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'--homedir', self.tempdir,

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'--force-mdc',

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'--quiet']

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self.gnupgargs = ["--batch",

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"--homedir", self.tempdir,

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"--force-mdc",

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"--quiet"]

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

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

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

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

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def __enter__(self):

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dir=self.tempdir) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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'--passphrase-file',

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

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"--passphrase-file",

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passfile.name]

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+ self.gnupgargs,

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stdin=subprocess.PIPE,

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dir=self.tempdir) as passfile:

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passfile.write(passphrase)

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passfile.flush()

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

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'--passphrase-file',

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

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"--passphrase-file",

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passfile.name]

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+ self.gnupgargs,

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stdin=subprocess.PIPE,

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# Pretend that we have an Avahi module

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class Avahi(object):

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

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

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class avahi:

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

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

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

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PROTO_INET = 0 # avahi-common/address.h

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DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"

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DBUS_PATH_SERVER = "/"

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def string_array_to_txt_array(self, t):

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@staticmethod

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def string_array_to_txt_array(t):

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

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

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ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h

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SERVER_RUNNING = 2 # avahi-common/defs.h

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SERVER_COLLISION = 3 # avahi-common/defs.h

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SERVER_FAILURE = 4 # avahi-common/defs.h

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avahi = Avahi()

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class AvahiError(Exception):

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pass

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class AvahiService(object):

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class AvahiService:

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"""An Avahi (Zeroconf) service.

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Attributes:

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

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Used to optionally bind to the specified interface.

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name: string; Example: 'Mandos'

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

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name: string; Example: "Mandos"

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

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

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port: integer; what port to announce

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TXT: list of strings; TXT record for the service

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def rename(self, remove=True):

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

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if self.rename_count >= self.max_renames:

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

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" after %i retries, exiting.",

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self.rename_count)

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

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" after %i retries, exiting.",

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self.rename_count)

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raise AvahiServiceError("Too many renames")

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self.name = str(

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self.server.GetAlternativeServiceName(self.name))

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self.rename_count += 1

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

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self.name)

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

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self.name)

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if remove:

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self.remove()

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try:

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except dbus.exceptions.DBusException as error:

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if (error.get_dbus_name()

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

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

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

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return self.rename(remove=False)

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else:

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

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

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self.cleanup()

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os._exit(1)

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

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self.name, self.type)

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"StateChanged", self.entry_group_state_changed))

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

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self.name, self.type)

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self.group.AddService(

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self.interface,

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self.protocol,

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def entry_group_state_changed(self, state, error):

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

425

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

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

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454

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if state == avahi.ENTRY_GROUP_ESTABLISHED:

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logger.debug("Zeroconf service established.")

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log.debug("Zeroconf service established.")

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457

elif state == avahi.ENTRY_GROUP_COLLISION:

430

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

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

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

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

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str(error))

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

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str(error))

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

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def cleanup(self):

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

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

450

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

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

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bad_states = {

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avahi.SERVER_INVALID: "Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

460

logger.error(bad_states[state])

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log.error(bad_states[state])

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else:

462

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

490

log.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()

469

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

470

logger.info("Local Zeroconf service name"

471

" collision.")

498

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

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return self.rename(remove=False)

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else:

474

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

501

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

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self.cleanup()

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os._exit(1)

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else:

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if error is None:

479

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

506

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

480

507

else:

481

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

508

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

482

509

483

510

def activate(self):

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

496

523

class AvahiServiceToSyslog(AvahiService):

497

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

498

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

499

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

526

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

527

**kwargs)

500

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syslogger.setFormatter(logging.Formatter(

501

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

529

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

502

530

.format(self.name)))

503

531

return ret

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532

505

533

506

534

# Pretend that we have a GnuTLS module

507

class GnuTLS(object):

508

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

509

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

535

class gnutls:

536

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

510

537

511

538

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

512

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if library is None:

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540

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

514

541

_library = ctypes.cdll.LoadLibrary(library)

515

542

del library

516

_need_version = b"3.3.0"

517

518

def __init__(self):

519

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

520

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

521

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

522

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

523

.format(self._need_version))

524

543

525

544

# Unless otherwise indicated, the constants and types below are

526

545

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

530

549

E_INTERRUPTED = -52

531

550

E_AGAIN = -28

532

551

CRT_OPENPGP = 2

552

CRT_RAWPK = 3

533

553

CLIENT = 2

534

554

SHUT_RDWR = 0

535

555

CRD_CERTIFICATE = 1

536

556

E_NO_CERTIFICATE_FOUND = -49

557

X509_FMT_DER = 0

558

NO_TICKETS = 1<<10

559

ENABLE_RAWPK = 1<<18

560

CTYPE_PEERS = 3

561

KEYID_USE_SHA256 = 1 # gnutls/x509.h

537

562

OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h

538

563

539

564

# Types

540

class session_int(ctypes.Structure):

565

class _session_int(ctypes.Structure):

541

566

_fields_ = []

542

session_t = ctypes.POINTER(session_int)

567

session_t = ctypes.POINTER(_session_int)

543

568

544

569

class certificate_credentials_st(ctypes.Structure):

545

570

_fields_ = []

548

573

certificate_type_t = ctypes.c_int

549

574

550

575

class datum_t(ctypes.Structure):

551

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

552

('size', ctypes.c_uint)]

576

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

577

("size", ctypes.c_uint)]

553

578

554

class openpgp_crt_int(ctypes.Structure):

579

class _openpgp_crt_int(ctypes.Structure):

555

580

_fields_ = []

556

openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)

581

openpgp_crt_t = ctypes.POINTER(_openpgp_crt_int)

557

582

openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h

558

583

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

559

584

credentials_type_t = ctypes.c_int

562

587

563

588

# Exceptions

564

589

class Error(Exception):

565

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

566

# exception might be raised from within GnuTLS.__init__,

567

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

568

# global variable has happened.

569

590

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

570

591

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

571

592

# code is passed, convert it to a string with

572

593

# gnutls.strerror()

573

594

self.code = code

574

595

if message is None and code is not None:

575

message = GnuTLS.strerror(code)

576

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

596

message = gnutls.strerror(code).decode(

597

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

598

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

577

599

message, *args)

578

600

579

601

class CertificateSecurityError(Error):

580

602

pass

581

603

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

582

629

# Classes

583

class Credentials(object):

630

class Credentials(With_from_param):

584

631

def __init__(self):

585

self._c_object = gnutls.certificate_credentials_t()

586

gnutls.certificate_allocate_credentials(

587

ctypes.byref(self._c_object))

632

self._as_parameter_ = gnutls.certificate_credentials_t()

633

gnutls.certificate_allocate_credentials(self)

588

634

self.type = gnutls.CRD_CERTIFICATE

589

635

590

636

def __del__(self):

591

gnutls.certificate_free_credentials(self._c_object)

637

gnutls.certificate_free_credentials(self)

592

638

593

class ClientSession(object):

639

class ClientSession(With_from_param):

594

640

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

595

self._c_object = gnutls.session_t()

596

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

597

gnutls.set_default_priority(self._c_object)

598

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

599

gnutls.handshake_set_private_extensions(self._c_object,

600

True)

641

self._as_parameter_ = gnutls.session_t()

642

gnutls_flags = gnutls.CLIENT

643

if gnutls.check_version(b"3.5.6"):

644

gnutls_flags |= gnutls.NO_TICKETS

645

if gnutls.has_rawpk:

646

gnutls_flags |= gnutls.ENABLE_RAWPK

647

gnutls.init(self, gnutls_flags)

648

del gnutls_flags

649

gnutls.set_default_priority(self)

650

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

651

gnutls.handshake_set_private_extensions(self, True)

601

652

self.socket = socket

602

653

if credentials is None:

603

654

credentials = gnutls.Credentials()

604

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

605

ctypes.cast(credentials._c_object,

606

ctypes.c_void_p))

655

gnutls.credentials_set(self, credentials.type,

656

credentials)

607

657

self.credentials = credentials

608

658

609

659

def __del__(self):

610

gnutls.deinit(self._c_object)

660

gnutls.deinit(self)

611

661

612

662

def handshake(self):

613

return gnutls.handshake(self._c_object)

663

return gnutls.handshake(self)

614

664

615

665

def send(self, data):

616

666

data = bytes(data)

617

667

data_len = len(data)

618

668

while data_len > 0:

619

data_len -= gnutls.record_send(self._c_object,

620

data[-data_len:],

669

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

621

670

data_len)

622

671

623

672

def bye(self):

624

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

673

return gnutls.bye(self, gnutls.SHUT_RDWR)

625

674

626

675

# Error handling functions

627

676

def _error_code(result):

628

677

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

629

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

630

if result >= 0:

678

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

679

if result >= gnutls.E_SUCCESS:

631

680

return result

632

681

if result == gnutls.E_NO_CERTIFICATE_FOUND:

633

682

raise gnutls.CertificateSecurityError(code=result)

634

683

raise gnutls.Error(code=result)

635

684

636

def _retry_on_error(result, func, arguments):

685

def _retry_on_error(result, func, arguments,

686

_error_code=_error_code):

637

687

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

638

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

639

while result < 0:

688

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

689

while result < gnutls.E_SUCCESS:

640

690

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

641

691

return _error_code(result)

642

692

result = func(*arguments)

647

697

648

698

# Functions

649

699

priority_set_direct = _library.gnutls_priority_set_direct

650

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

700

priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,

651

701

ctypes.POINTER(ctypes.c_char_p)]

652

702

priority_set_direct.restype = _error_code

653

703

654

704

init = _library.gnutls_init

655

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

705

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

656

706

init.restype = _error_code

657

707

658

708

set_default_priority = _library.gnutls_set_default_priority

659

set_default_priority.argtypes = [session_t]

709

set_default_priority.argtypes = [ClientSession]

660

710

set_default_priority.restype = _error_code

661

711

662

712

record_send = _library.gnutls_record_send

663

record_send.argtypes = [session_t, ctypes.c_void_p,

713

record_send.argtypes = [ClientSession, ctypes.c_void_p,

664

714

ctypes.c_size_t]

665

715

record_send.restype = ctypes.c_ssize_t

666

716

record_send.errcheck = _retry_on_error

668

718

certificate_allocate_credentials = (

669

719

_library.gnutls_certificate_allocate_credentials)

670

720

certificate_allocate_credentials.argtypes = [

671

ctypes.POINTER(certificate_credentials_t)]

721

PointerTo(Credentials)]

672

722

certificate_allocate_credentials.restype = _error_code

673

723

674

724

certificate_free_credentials = (

675

725

_library.gnutls_certificate_free_credentials)

676

certificate_free_credentials.argtypes = [

677

certificate_credentials_t]

726

certificate_free_credentials.argtypes = [Credentials]

678

727

certificate_free_credentials.restype = None

679

728

680

729

handshake_set_private_extensions = (

681

730

_library.gnutls_handshake_set_private_extensions)

682

handshake_set_private_extensions.argtypes = [session_t,

731

handshake_set_private_extensions.argtypes = [ClientSession,

683

732

ctypes.c_int]

684

733

handshake_set_private_extensions.restype = None

685

734

686

735

credentials_set = _library.gnutls_credentials_set

687

credentials_set.argtypes = [session_t, credentials_type_t,

688

ctypes.c_void_p]

736

credentials_set.argtypes = [ClientSession, credentials_type_t,

737

CastToVoidPointer(Credentials)]

689

738

credentials_set.restype = _error_code

690

739

691

740

strerror = _library.gnutls_strerror

693

742

strerror.restype = ctypes.c_char_p

694

743

695

744

certificate_type_get = _library.gnutls_certificate_type_get

696

certificate_type_get.argtypes = [session_t]

745

certificate_type_get.argtypes = [ClientSession]

697

746

certificate_type_get.restype = _error_code

698

747

699

748

certificate_get_peers = _library.gnutls_certificate_get_peers

700

certificate_get_peers.argtypes = [session_t,

749

certificate_get_peers.argtypes = [ClientSession,

701

750

ctypes.POINTER(ctypes.c_uint)]

702

751

certificate_get_peers.restype = ctypes.POINTER(datum_t)

703

752

710

759

global_set_log_function.restype = None

711

760

712

761

deinit = _library.gnutls_deinit

713

deinit.argtypes = [session_t]

762

deinit.argtypes = [ClientSession]

714

763

deinit.restype = None

715

764

716

765

handshake = _library.gnutls_handshake

717

handshake.argtypes = [session_t]

718

handshake.restype = _error_code

766

handshake.argtypes = [ClientSession]

767

handshake.restype = ctypes.c_int

719

768

handshake.errcheck = _retry_on_error

720

769

721

770

transport_set_ptr = _library.gnutls_transport_set_ptr

722

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

771

transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]

723

772

transport_set_ptr.restype = None

724

773

725

774

bye = _library.gnutls_bye

726

bye.argtypes = [session_t, close_request_t]

727

bye.restype = _error_code

775

bye.argtypes = [ClientSession, close_request_t]

776

bye.restype = ctypes.c_int

728

777

bye.errcheck = _retry_on_error

729

778

730

779

check_version = _library.gnutls_check_version

731

780

check_version.argtypes = [ctypes.c_char_p]

732

781

check_version.restype = ctypes.c_char_p

733

782

734

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

735

736

openpgp_crt_init = _library.gnutls_openpgp_crt_init

737

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

738

openpgp_crt_init.restype = _error_code

739

740

openpgp_crt_import = _library.gnutls_openpgp_crt_import

741

openpgp_crt_import.argtypes = [openpgp_crt_t,

742

ctypes.POINTER(datum_t),

743

openpgp_crt_fmt_t]

744

openpgp_crt_import.restype = _error_code

745

746

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

747

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

748

ctypes.POINTER(ctypes.c_uint)]

749

openpgp_crt_verify_self.restype = _error_code

750

751

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

752

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

753

openpgp_crt_deinit.restype = None

754

755

openpgp_crt_get_fingerprint = (

756

_library.gnutls_openpgp_crt_get_fingerprint)

757

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

758

ctypes.c_void_p,

759

ctypes.POINTER(

760

ctypes.c_size_t)]

761

openpgp_crt_get_fingerprint.restype = _error_code

783

_need_version = b"3.3.0"

784

if check_version(_need_version) is None:

785

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

786

.format(_need_version))

787

788

_tls_rawpk_version = b"3.6.6"

789

has_rawpk = bool(check_version(_tls_rawpk_version))

790

791

if has_rawpk:

792

# Types

793

class pubkey_st(ctypes.Structure):

794

_fields = []

795

pubkey_t = ctypes.POINTER(pubkey_st)

796

797

x509_crt_fmt_t = ctypes.c_int

798

799

# All the function declarations below are from

800

# gnutls/abstract.h

801

pubkey_init = _library.gnutls_pubkey_init

802

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

803

pubkey_init.restype = _error_code

804

805

pubkey_import = _library.gnutls_pubkey_import

806

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

807

x509_crt_fmt_t]

808

pubkey_import.restype = _error_code

809

810

pubkey_get_key_id = _library.gnutls_pubkey_get_key_id

811

pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,

812

ctypes.POINTER(ctypes.c_ubyte),

813

ctypes.POINTER(ctypes.c_size_t)]

814

pubkey_get_key_id.restype = _error_code

815

816

pubkey_deinit = _library.gnutls_pubkey_deinit

817

pubkey_deinit.argtypes = [pubkey_t]

818

pubkey_deinit.restype = None

819

else:

820

# All the function declarations below are from

821

# gnutls/openpgp.h

822

823

openpgp_crt_init = _library.gnutls_openpgp_crt_init

824

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

825

openpgp_crt_init.restype = _error_code

826

827

openpgp_crt_import = _library.gnutls_openpgp_crt_import

828

openpgp_crt_import.argtypes = [openpgp_crt_t,

829

ctypes.POINTER(datum_t),

830

openpgp_crt_fmt_t]

831

openpgp_crt_import.restype = _error_code

832

833

openpgp_crt_verify_self = \

834

_library.gnutls_openpgp_crt_verify_self

835

openpgp_crt_verify_self.argtypes = [

836

openpgp_crt_t,

837

ctypes.c_uint,

838

ctypes.POINTER(ctypes.c_uint),

839

]

840

openpgp_crt_verify_self.restype = _error_code

841

842

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

843

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

844

openpgp_crt_deinit.restype = None

845

846

openpgp_crt_get_fingerprint = (

847

_library.gnutls_openpgp_crt_get_fingerprint)

848

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

849

ctypes.c_void_p,

850

ctypes.POINTER(

851

ctypes.c_size_t)]

852

openpgp_crt_get_fingerprint.restype = _error_code

853

854

if check_version(b"3.6.4"):

855

certificate_type_get2 = _library.gnutls_certificate_type_get2

856

certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]

857

certificate_type_get2.restype = _error_code

762

858

763

859

# Remove non-public functions

764

860

del _error_code, _retry_on_error

765

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

766

gnutls = GnuTLS()

767

861

768

862

769

863

def call_pipe(connection, # : multiprocessing.Connection

777

871

connection.close()

778

872

779

873

780

class Client(object):

874

class Client:

781

875

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

782

876

783

877

Attributes:

784

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

878

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

785

879

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

786

880

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

787

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

788

to see if the client lives.

789

'None' if no process is running.

881

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

882

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

883

running.

790

884

checker_callback_tag: a GLib event source tag, or None

791

885

checker_command: string; External command which is run to check

792

886

if client lives. %() expansions are done at

800

894

disable_initiator_tag: a GLib event source tag, or None

801

895

enabled: bool()

802

896

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

803

uniquely identify the client

897

uniquely identify an OpenPGP client

898

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

899

a client using raw public keys

804

900

host: string; available for use by the checker command

805

901

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

806

902

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

824

920

"""

825

921

826

922

runtime_expansions = ("approval_delay", "approval_duration",

827

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

923

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

828

924

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

829

925

"last_approval_request", "last_checked_ok",

830

926

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

860

956

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

861

957

"enabled")

862

958

863

# Uppercase and remove spaces from fingerprint for later

864

# comparison purposes with return value from the

865

# fingerprint() function

959

# Uppercase and remove spaces from key_id and fingerprint

960

# for later comparison purposes with return value from the

961

# key_id() and fingerprint() functions

962

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

963

.replace(" ", ""))

866

964

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

867

965

.replace(" ", ""))

868

966

if "secret" in section:

911

1009

self.last_enabled = None

912

1010

self.expires = None

913

1011

914

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

915

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

1012

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

1013

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

1014

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

916

1015

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

917

1016

datetime.datetime.utcnow())

918

1017

957

1056

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

958

1057

return False

959

1058

if not quiet:

960

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

1059

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

961

1060

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

962

1061

GLib.source_remove(self.disable_initiator_tag)

963

1062

self.disable_initiator_tag = None

981

1080

if self.checker_initiator_tag is not None:

982

1081

GLib.source_remove(self.checker_initiator_tag)

983

1082

self.checker_initiator_tag = GLib.timeout_add(

984

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

1083

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

1084

+ 1)),

985

1085

self.start_checker)

986

1086

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

987

1087

if self.disable_initiator_tag is not None:

994

1094

def checker_callback(self, source, condition, connection,

995

1095

command):

996

1096

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

997

self.checker_callback_tag = None

998

self.checker = None

999

1097

# Read return code from connection (see call_pipe)

1000

1098

returncode = connection.recv()

1001

1099

connection.close()

1100

if self.checker is not None:

1101

self.checker.join()

1102

self.checker_callback_tag = None

1103

self.checker = None

1002

1104

1003

1105

if returncode >= 0:

1004

1106

self.last_checker_status = returncode

1005

1107

self.last_checker_signal = None

1006

1108

if self.last_checker_status == 0:

1007

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

1008

vars(self))

1109

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

1009

1110

self.checked_ok()

1010

1111

else:

1011

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

1112

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

1012

1113

else:

1013

1114

self.last_checker_status = -1

1014

1115

self.last_checker_signal = -returncode

1015

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

1016

vars(self))

1116

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

1017

1117

return False

1018

1118

1019

1119

def checked_ok(self):

1053

1153

# should be.

1054

1154

1055

1155

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

1056

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

1156

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

1057

1157

self.checker.join()

1058

1158

self.checker = None

1059

1159

# Start a new checker if needed

1060

1160

if self.checker is None:

1061

1161

# Escape attributes for the shell

1062

1162

escaped_attrs = {

1063

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

1163

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

1064

1164

for attr in self.runtime_expansions}

1065

1165

try:

1066

1166

command = self.checker_command % escaped_attrs

1067

1167

except TypeError as error:

1068

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

1069

self.checker_command,

1070

exc_info=error)

1168

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

1169

self.checker_command, exc_info=error)

1071

1170

return True # Try again later

1072

1171

self.current_checker_command = command

1073

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

1074

self.name)

1172

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

1075

1173

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

1076

1174

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

1077

1175

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

1093

1191

kwargs=popen_args)

1094

1192

self.checker.start()

1095

1193

self.checker_callback_tag = GLib.io_add_watch(

1096

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

1194

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

1195

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

1097

1196

self.checker_callback, pipe[0], command)

1098

1197

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

1099

1198

return True

1105

1204

self.checker_callback_tag = None

1106

1205

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

1107

1206

return

1108

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

1207

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

1109

1208

self.checker.terminate()

1110

1209

self.checker = None

1111

1210

1138

1237

func._dbus_name = func.__name__

1139

1238

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

1140

1239

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

1141

func._dbus_get_args_options = {'byte_arrays': byte_arrays}

1240

func._dbus_get_args_options = {"byte_arrays": byte_arrays}

1142

1241

return func

1143

1242

1144

1243

return decorator

1233

1332

1234

1333

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1235

1334

out_signature="s",

1236

path_keyword='object_path',

1237

connection_keyword='connection')

1335

path_keyword="object_path",

1336

connection_keyword="connection")

1238

1337

def Introspect(self, object_path, connection):

1239

1338

"""Overloading of standard D-Bus method.

1240

1339

1289

1388

document.unlink()

1290

1389

except (AttributeError, xml.dom.DOMException,

1291

1390

xml.parsers.expat.ExpatError) as error:

1292

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

1293

exc_info=error)

1391

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

1392

exc_info=error)

1294

1393

return xmlstring

1295

1394

1296

1395

1354

1453

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

1355

1454

"'ay' signature {!r}"

1356

1455

.format(prop._dbus_signature))

1357

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

1358

for byte in value))

1456

value = dbus.ByteArray(bytes(value))

1359

1457

prop(value)

1360

1458

1361

1459

@dbus.service.method(dbus.PROPERTIES_IFACE,

1394

1492

1395

1493

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1396

1494

out_signature="s",

1397

path_keyword='object_path',

1398

connection_keyword='connection')

1495

path_keyword="object_path",

1496

connection_keyword="connection")

1399

1497

def Introspect(self, object_path, connection):

1400

1498

"""Overloading of standard D-Bus method.

1401

1499

1457

1555

document.unlink()

1458

1556

except (AttributeError, xml.dom.DOMException,

1459

1557

xml.parsers.expat.ExpatError) as error:

1460

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

1461

exc_info=error)

1558

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

1559

exc_info=error)

1462

1560

return xmlstring

1463

1561

1464

1562

1496

1594

1497

1595

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1498

1596

out_signature="s",

1499

path_keyword='object_path',

1500

connection_keyword='connection')

1597

path_keyword="object_path",

1598

connection_keyword="connection")

1501

1599

def Introspect(self, object_path, connection):

1502

1600

"""Overloading of standard D-Bus method.

1503

1601

1528

1626

document.unlink()

1529

1627

except (AttributeError, xml.dom.DOMException,

1530

1628

xml.parsers.expat.ExpatError) as error:

1531

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

1532

exc_info=error)

1629

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

1630

exc_info=error)

1533

1631

return xmlstring

1534

1632

1535

1633

1999

2097

def Name_dbus_property(self):

2000

2098

return dbus.String(self.name)

2001

2099

2100

# KeyID - property

2101

@dbus_annotations(

2102

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

2103

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

2104

def KeyID_dbus_property(self):

2105

return dbus.String(self.key_id)

2106

2002

2107

# Fingerprint - property

2003

2108

@dbus_annotations(

2004

2109

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

2159

2264

del _interface

2160

2265

2161

2266

2162

class ProxyClient(object):

2163

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

2267

class ProxyClient:

2268

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

2164

2269

self._pipe = child_pipe

2165

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

2270

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

2166

2271

if not self._pipe.recv():

2167

raise KeyError(fpr)

2272

raise KeyError(key_id or fpr)

2168

2273

2169

2274

def __getattribute__(self, name):

2170

if name == '_pipe':

2275

if name == "_pipe":

2171

2276

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

2172

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

2277

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

2173

2278

data = self._pipe.recv()

2174

if data[0] == 'data':

2279

if data[0] == "data":

2175

2280

return data[1]

2176

if data[0] == 'function':

2281

if data[0] == "function":

2177

2282

2178

2283

def func(*args, **kwargs):

2179

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

2284

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

2180

2285

return self._pipe.recv()[1]

2181

2286

2182

2287

return func

2183

2288

2184

2289

def __setattr__(self, name, value):

2185

if name == '_pipe':

2290

if name == "_pipe":

2186

2291

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

2187

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

2292

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

2188

2293

2189

2294

2190

2295

class ClientHandler(socketserver.BaseRequestHandler, object):

2195

2300

2196

2301

def handle(self):

2197

2302

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

2198

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

2199

str(self.client_address))

2200

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

2201

self.server.child_pipe.fileno())

2303

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

2304

str(self.client_address))

2305

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

2202

2306

2203

2307

session = gnutls.ClientSession(self.request)

2204

2308

2205

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

2309

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

2206

2310

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

2207

2311

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

2208

2312

# "+DHE-DSS"))

2210

2314

priority = self.server.gnutls_priority

2211

2315

if priority is None:

2212

2316

priority = "NORMAL"

2213

gnutls.priority_set_direct(session._c_object,

2214

priority.encode("utf-8"),

2215

None)

2317

gnutls.priority_set_direct(session,

2318

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

2216

2319

2217

2320

# Start communication using the Mandos protocol

2218

2321

# Get protocol number

2219

2322

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

2220

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

2323

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

2221

2324

try:

2222

2325

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

2223

2326

raise RuntimeError(line)

2224

2327

except (ValueError, IndexError, RuntimeError) as error:

2225

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

2328

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

2226

2329

return

2227

2330

2228

2331

# Start GnuTLS connection

2229

2332

try:

2230

2333

session.handshake()

2231

2334

except gnutls.Error as error:

2232

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

2335

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

2233

2336

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

2234

2337

# established. Just abandon the request.

2235

2338

return

2236

logger.debug("Handshake succeeded")

2339

log.debug("Handshake succeeded")

2237

2340

2238

2341

approval_required = False

2239

2342

try:

2240

try:

2241

fpr = self.fingerprint(

2242

self.peer_certificate(session))

2243

except (TypeError, gnutls.Error) as error:

2244

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

2245

return

2246

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

2247

2248

try:

2249

client = ProxyClient(child_pipe, fpr,

2343

if gnutls.has_rawpk:

2344

fpr = b""

2345

try:

2346

key_id = self.key_id(

2347

self.peer_certificate(session))

2348

except (TypeError, gnutls.Error) as error:

2349

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

2350

return

2351

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

2352

key_id.decode("utf-8",

2353

errors="replace"))

2354

2355

else:

2356

key_id = b""

2357

try:

2358

fpr = self.fingerprint(

2359

self.peer_certificate(session))

2360

except (TypeError, gnutls.Error) as error:

2361

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

2362

return

2363

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

2364

2365

try:

2366

client = ProxyClient(child_pipe, key_id, fpr,

2250

2367

self.client_address)

2251

2368

except KeyError:

2252

2369

return

2258

2375

2259

2376

while True:

2260

2377

if not client.enabled:

2261

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

2262

client.name)

2378

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

2263

2379

if self.server.use_dbus:

2264

2380

# Emit D-Bus signal

2265

2381

client.Rejected("Disabled")

2269

2385

# We are approved or approval is disabled

2270

2386

break

2271

2387

elif client.approved is None:

2272

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

2273

client.name)

2388

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

2389

client.name)

2274

2390

if self.server.use_dbus:

2275

2391

# Emit D-Bus signal

2276

2392

client.NeedApproval(

2277

2393

client.approval_delay.total_seconds()

2278

2394

* 1000, client.approved_by_default)

2279

2395

else:

2280

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

2281

client.name)

2396

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

2397

client.name)

2282

2398

if self.server.use_dbus:

2283

2399

# Emit D-Bus signal

2284

2400

client.Rejected("Denied")

2292

2408

time2 = datetime.datetime.now()

2293

2409

if (time2 - time) >= delay:

2294

2410

if not client.approved_by_default:

2295

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

2296

" waiting for approval",

2297

client.name)

2411

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

2412

" waiting for approval",

2413

client.name)

2298

2414

if self.server.use_dbus:

2299

2415

# Emit D-Bus signal

2300

2416

client.Rejected("Approval timed out")

2307

2423

try:

2308

2424

session.send(client.secret)

2309

2425

except gnutls.Error as error:

2310

logger.warning("gnutls send failed",

2311

exc_info=error)

2426

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

2312

2427

return

2313

2428

2314

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

2429

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

2315

2430

# bump the timeout using extended_timeout

2316

2431

client.bump_timeout(client.extended_timeout)

2317

2432

if self.server.use_dbus:

2324

2439

try:

2325

2440

session.bye()

2326

2441

except gnutls.Error as error:

2327

logger.warning("GnuTLS bye failed",

2328

exc_info=error)

2442

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

2329

2443

2330

2444

@staticmethod

2331

2445

def peer_certificate(session):

2332

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

2333

# If not an OpenPGP certificate...

2334

if (gnutls.certificate_type_get(session._c_object)

2335

!= gnutls.CRT_OPENPGP):

2446

"Return the peer's certificate as a bytestring"

2447

try:

2448

cert_type = gnutls.certificate_type_get2(

2449

session, gnutls.CTYPE_PEERS)

2450

except AttributeError:

2451

cert_type = gnutls.certificate_type_get(session)

2452

if gnutls.has_rawpk:

2453

valid_cert_types = frozenset((gnutls.CRT_RAWPK,))

2454

else:

2455

valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))

2456

# If not a valid certificate type...

2457

if cert_type not in valid_cert_types:

2458

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

2459

valid_cert_types)

2336

2460

# ...return invalid data

2337

2461

return b""

2338

2462

list_size = ctypes.c_uint(1)

2339

2463

cert_list = (gnutls.certificate_get_peers

2340

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

2464

(session, ctypes.byref(list_size)))

2341

2465

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

2342

2466

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

2343

2467

if list_size.value == 0:

2346

2470

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

2347

2471

2348

2472

@staticmethod

2473

def key_id(certificate):

2474

"Convert a certificate bytestring to a hexdigit key ID"

2475

# New GnuTLS "datum" with the public key

2476

datum = gnutls.datum_t(

2477

ctypes.cast(ctypes.c_char_p(certificate),

2478

ctypes.POINTER(ctypes.c_ubyte)),

2479

ctypes.c_uint(len(certificate)))

2480

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

2481

# New empty GnuTLS certificate

2482

pubkey = gnutls.pubkey_t()

2483

gnutls.pubkey_init(ctypes.byref(pubkey))

2484

# Import the raw public key into the certificate

2485

gnutls.pubkey_import(pubkey,

2486

ctypes.byref(datum),

2487

gnutls.X509_FMT_DER)

2488

# New buffer for the key ID

2489

buf = ctypes.create_string_buffer(32)

2490

buf_len = ctypes.c_size_t(len(buf))

2491

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

2492

gnutls.pubkey_get_key_id(

2493

pubkey,

2494

gnutls.KEYID_USE_SHA256,

2495

ctypes.cast(ctypes.byref(buf),

2496

ctypes.POINTER(ctypes.c_ubyte)),

2497

ctypes.byref(buf_len))

2498

# Deinit the certificate

2499

gnutls.pubkey_deinit(pubkey)

2500

2501

# Convert the buffer to a Python bytestring

2502

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

2503

# Convert the bytestring to hexadecimal notation

2504

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

2505

return hex_key_id

2506

2507

@staticmethod

2349

2508

def fingerprint(openpgp):

2350

2509

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

2351

2510

# New GnuTLS "datum" with the OpenPGP public key

2382

2541

return hex_fpr

2383

2542

2384

2543

2385

class MultiprocessingMixIn(object):

2544

class MultiprocessingMixIn:

2386

2545

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

2387

2546

2388

2547

def sub_process_main(self, request, address):

2400

2559

return proc

2401

2560

2402

2561

2403

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

2562

class MultiprocessingMixInWithPipe(MultiprocessingMixIn):

2404

2563

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

2405

2564

2406

2565

def process_request(self, request, client_address):

2421

2580

2422

2581

2423

2582

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

2424

socketserver.TCPServer, object):

2425

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

2583

socketserver.TCPServer):

2584

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

2426

2585

2427

2586

Attributes:

2428

2587

enabled: Boolean; whether this server is activated yet

2479

2638

if SO_BINDTODEVICE is None:

2480

2639

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

2481

2640

# common enough.

2482

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

2641

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

2483

2642

SO_BINDTODEVICE = 25

2484

2643

try:

2485

2644

self.socket.setsockopt(

2487

2646

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

2488

2647

except socket.error as error:

2489

2648

if error.errno == errno.EPERM:

2490

logger.error("No permission to bind to"

2491

" interface %s", self.interface)

2649

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

2650

self.interface)

2492

2651

elif error.errno == errno.ENOPROTOOPT:

2493

logger.error("SO_BINDTODEVICE not available;"

2494

" cannot bind to interface %s",

2495

self.interface)

2652

log.error("SO_BINDTODEVICE not available; cannot"

2653

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

2496

2654

elif error.errno == errno.ENODEV:

2497

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

2498

" cannot bind", self.interface)

2655

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

2656

" bind", self.interface)

2499

2657

else:

2500

2658

raise

2501

2659

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

2502

2660

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

2661

if self.server_address[1]:

2662

self.allow_reuse_address = True

2503

2663

if not self.server_address[0]:

2504

2664

if self.address_family == socket.AF_INET6:

2505

2665

any_address = "::" # in6addr_any

2558

2718

def add_pipe(self, parent_pipe, proc):

2559

2719

# Call "handle_ipc" for both data and EOF events

2560

2720

GLib.io_add_watch(

2561

parent_pipe.fileno(),

2562

GLib.IO_IN | GLib.IO_HUP,

2721

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

2722

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

2563

2723

functools.partial(self.handle_ipc,

2564

2724

parent_pipe=parent_pipe,

2565

2725

proc=proc))

2578

2738

request = parent_pipe.recv()

2579

2739

command = request[0]

2580

2740

2581

if command == 'init':

2582

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

2583

address = request[2]

2741

if command == "init":

2742

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

2743

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

2744

address = request[3]

2584

2745

2585

2746

for c in self.clients.values():

2586

if c.fingerprint == fpr:

2747

if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"

2748

"27AE41E4649B934CA495991B7852B855"):

2749

continue

2750

if key_id and c.key_id == key_id:

2751

client = c

2752

break

2753

if fpr and c.fingerprint == fpr:

2587

2754

client = c

2588

2755

break

2589

2756

else:

2590

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

2591

"dress: %s", fpr, address)

2757

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

2758

" %s", key_id or fpr, address)

2592

2759

if self.use_dbus:

2593

2760

# Emit D-Bus signal

2594

mandos_dbus_service.ClientNotFound(fpr,

2761

mandos_dbus_service.ClientNotFound(key_id or fpr,

2595

2762

address[0])

2596

2763

parent_pipe.send(False)

2597

2764

return False

2598

2765

2599

2766

GLib.io_add_watch(

2600

parent_pipe.fileno(),

2601

GLib.IO_IN | GLib.IO_HUP,

2767

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

2768

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

2602

2769

functools.partial(self.handle_ipc,

2603

2770

parent_pipe=parent_pipe,

2604

2771

proc=proc,

2607

2774

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

2608

2775

# same fileno

2609

2776

return False

2610

if command == 'funcall':

2777

if command == "funcall":

2611

2778

funcname = request[1]

2612

2779

args = request[2]

2613

2780

kwargs = request[3]

2614

2781

2615

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

2782

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

2616

2783

funcname)(*args,

2617

2784

**kwargs)))

2618

2785

2619

if command == 'getattr':

2786

if command == "getattr":

2620

2787

attrname = request[1]

2621

2788

if isinstance(client_object.__getattribute__(attrname),

2622

collections.Callable):

2623

parent_pipe.send(('function', ))

2789

collections.abc.Callable):

2790

parent_pipe.send(("function", ))

2624

2791

else:

2625

2792

parent_pipe.send((

2626

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

2793

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

2627

2794

2628

if command == 'setattr':

2795

if command == "setattr":

2629

2796

attrname = request[1]

2630

2797

value = request[2]

2631

2798

setattr(client_object, attrname, value)

2636

2803

def rfc3339_duration_to_delta(duration):

2637

2804

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

2638

2805

2639

>>> rfc3339_duration_to_delta("P7D")

2640

datetime.timedelta(7)

2641

>>> rfc3339_duration_to_delta("PT60S")

2642

datetime.timedelta(0, 60)

2643

>>> rfc3339_duration_to_delta("PT60M")

2644

datetime.timedelta(0, 3600)

2645

>>> rfc3339_duration_to_delta("PT24H")

2646

datetime.timedelta(1)

2647

>>> rfc3339_duration_to_delta("P1W")

2648

datetime.timedelta(7)

2649

>>> rfc3339_duration_to_delta("PT5M30S")

2650

datetime.timedelta(0, 330)

2651

>>> rfc3339_duration_to_delta("P1DT3M20S")

2652

datetime.timedelta(1, 200)

2806

>>> timedelta = datetime.timedelta

2807

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

2808

True

2809

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

2810

True

2811

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

2812

True

2813

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

2814

True

2815

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

2816

True

2817

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

2818

True

2819

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

2820

True

2821

>>> del timedelta

2653

2822

"""

2654

2823

2655

2824

# Parsing an RFC 3339 duration with regular expressions is not

2735

2904

def string_to_delta(interval):

2736

2905

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

2737

2906

2738

>>> string_to_delta('7d')

2739

datetime.timedelta(7)

2740

>>> string_to_delta('60s')

2741

datetime.timedelta(0, 60)

2742

>>> string_to_delta('60m')

2743

datetime.timedelta(0, 3600)

2744

>>> string_to_delta('24h')

2745

datetime.timedelta(1)

2746

>>> string_to_delta('1w')

2747

datetime.timedelta(7)

2748

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

2749

datetime.timedelta(0, 330)

2907

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

2908

True

2909

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

2910

True

2911

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

2912

True

2913

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

2914

True

2915

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

2916

True

2917

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

2918

True

2750

2919

"""

2751

2920

2752

2921

try:

2854

3023

2855

3024

options = parser.parse_args()

2856

3025

2857

if options.check:

2858

import doctest

2859

fail_count, test_count = doctest.testmod()

2860

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

2861

2862

3026

# Default values for config file for server-global settings

3027

if gnutls.has_rawpk:

3028

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

3029

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

3030

else:

3031

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

3032

":+SIGN-DSA-SHA256")

2863

3033

server_defaults = {"interface": "",

2864

3034

"address": "",

2865

3035

"port": "",

2866

3036

"debug": "False",

2867

"priority":

2868

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

2869

":+SIGN-DSA-SHA256",

3037

"priority": priority,

2870

3038

"servicename": "Mandos",

2871

3039

"use_dbus": "True",

2872

3040

"use_ipv6": "True",

2877

3045

"foreground": "False",

2878

3046

"zeroconf": "True",

2879

3047

}

3048

del priority

2880

3049

2881

3050

# Parse config file for server-global settings

2882

server_config = configparser.SafeConfigParser(server_defaults)

3051

server_config = configparser.ConfigParser(server_defaults)

2883

3052

del server_defaults

2884

3053

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

2885

# Convert the SafeConfigParser object to a dict

3054

# Convert the ConfigParser object to a dict

2886

3055

server_settings = server_config.defaults()

2887

3056

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

2888

3057

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

2955

3124

2956

3125

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

2957

3126

syslogger.setFormatter(

2958

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

2959

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

3127

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

3128

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

2960

3129

server_settings["servicename"])))

2961

3130

2962

3131

# Parse config file with clients

2963

client_config = configparser.SafeConfigParser(Client

2964

.client_defaults)

3132

client_config = configparser.ConfigParser(Client.client_defaults)

2965

3133

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

2966

3134

"clients.conf"))

2967

3135

2987

3155

try:

2988

3156

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

2989

3157

except IOError as e:

2990

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

2991

exc_info=e)

3158

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

3159

exc_info=e)

2992

3160

2993

3161

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

2994

3162

("mandos", "mandos"),

3005

3173

try:

3006

3174

os.setgid(gid)

3007

3175

os.setuid(uid)

3008

if debug:

3009

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

3010

gid))

3176

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

3011

3177

except OSError as error:

3012

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

3013

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

3178

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

3179

os.strerror(error.errno))

3014

3180

if error.errno != errno.EPERM:

3015

3181

raise

3016

3182

3023

3189

3024

3190

@gnutls.log_func

3025

3191

def debug_gnutls(level, string):

3026

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

3192

log.debug("GnuTLS: %s",

3193

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

3027

3194

3028

3195

gnutls.global_set_log_function(debug_gnutls)

3029

3196

3038

3205

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

3039

3206

daemon()

3040

3207

3041

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

3042

# to inform GLib that threads will be used.

3043

GLib.threads_init()

3208

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

3209

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

3210

# need to inform GLib that threads will be used.

3211

GLib.threads_init()

3044

3212

3045

3213

global main_loop

3046

3214

# From the Avahi example code

3057

3225

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

3058

3226

do_not_queue=True)

3059

3227

except dbus.exceptions.DBusException as e:

3060

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

3228

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

3061

3229

use_dbus = False

3062

3230

server_settings["use_dbus"] = False

3063

3231

tcp_server.use_dbus = False

3122

3290

if isinstance(s, bytes)

3123

3291

else s) for s in

3124

3292

value["client_structure"]]

3125

# .name & .host

3126

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

3293

# .name, .host, and .checker_command

3294

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

3127

3295

if isinstance(value[k], bytes):

3128

3296

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

3297

if "key_id" not in value:

3298

value["key_id"] = ""

3299

elif "fingerprint" not in value:

3300

value["fingerprint"] = ""

3129

3301

# old_client_settings

3130

3302

# .keys()

3131

3303

old_client_settings = {

3135

3307

for key, value in

3136

3308

bytes_old_client_settings.items()}

3137

3309

del bytes_old_client_settings

3138

# .host

3310

# .host and .checker_command

3139

3311

for value in old_client_settings.values():

3140

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

3141

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

3142

.decode("utf-8"))

3312

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

3313

if isinstance(value[attribute], bytes):

3314

value[attribute] = (value[attribute]

3315

.decode("utf-8"))

3143

3316

os.remove(stored_state_path)

3144

3317

except IOError as e:

3145

3318

if e.errno == errno.ENOENT:

3146

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

3147

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

3319

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

3320

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

3148

3321

else:

3149

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

3150

exc_info=e)

3322

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

3323

exc_info=e)

3151

3324

raise

3152

3325

except EOFError as e:

3153

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

3154

"EOFError:",

3155

exc_info=e)

3326

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

3327

exc_info=e)

3156

3328

3157

3329

with PGPEngine() as pgp:

3158

3330

for client_name, client in clients_data.items():

3185

3357

if client["enabled"]:

3186

3358

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

3187

3359

if not client["last_checked_ok"]:

3188

logger.warning(

3189

"disabling client {} - Client never "

3190

"performed a successful checker".format(

3191

client_name))

3360

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

3361

" never performed a successful"

3362

" checker", client_name)

3192

3363

client["enabled"] = False

3193

3364

elif client["last_checker_status"] != 0:

3194

logger.warning(

3195

"disabling client {} - Client last"

3196

" checker failed with error code"

3197

" {}".format(

3198

client_name,

3199

client["last_checker_status"]))

3365

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

3366

" last checker failed with error"

3367

" code %s", client_name,

3368

client["last_checker_status"])

3200

3369

client["enabled"] = False

3201

3370

else:

3202

3371

client["expires"] = (

3203

3372

datetime.datetime.utcnow()

3204

3373

+ client["timeout"])

3205

logger.debug("Last checker succeeded,"

3206

" keeping {} enabled".format(

3207

client_name))

3374

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

3375

" enabled", client_name)

3208

3376

try:

3209

3377

client["secret"] = pgp.decrypt(

3210

3378

client["encrypted_secret"],

3211

3379

client_settings[client_name]["secret"])

3212

3380

except PGPError:

3213

3381

# If decryption fails, we use secret from new settings

3214

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

3215

client_name))

3382

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

3383

client_name)

3216

3384

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

3217

3385

["secret"])

3218

3386

3232

3400

server_settings=server_settings)

3233

3401

3234

3402

if not tcp_server.clients:

3235

logger.warning("No clients defined")

3403

log.warning("No clients defined")

3236

3404

3237

3405

if not foreground:

3238

3406

if pidfile is not None:

3241

3409

with pidfile:

3242

3410

print(pid, file=pidfile)

3243

3411

except IOError:

3244

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

3245

pidfilename, pid)

3412

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

3413

pidfilename, pid)

3246

3414

del pidfile

3247

3415

del pidfilename

3248

3416

3268

3436

pass

3269

3437

3270

3438

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

3271

def ClientNotFound(self, fingerprint, address):

3439

def ClientNotFound(self, key_id, address):

3272

3440

"D-Bus signal"

3273

3441

pass

3274

3442

3398

3566

3399

3567

try:

3400

3568

with tempfile.NamedTemporaryFile(

3401

mode='wb',

3569

mode="wb",

3402

3570

suffix=".pickle",

3403

prefix='clients-',

3571

prefix="clients-",

3404

3572

dir=os.path.dirname(stored_state_path),

3405

3573

delete=False) as stored_state:

3406

3574

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

3414

3582

except NameError:

3415

3583

pass

3416

3584

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

3417

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

3418

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

3585

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

3586

os.strerror(e.errno))

3419

3587

else:

3420

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

3421

exc_info=e)

3588

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

3589

exc_info=e)

3422

3590

raise

3423

3591

3424

3592

# Delete all clients, and settings from config

3450

3618

if zeroconf:

3451

3619

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

3452

3620

if use_ipv6:

3453

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

3454

" flowinfo %d, scope_id %d",

3455

*tcp_server.socket.getsockname())

3621

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

3622

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

3456

3623

else: # IPv4

3457

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

3458

*tcp_server.socket.getsockname())

3624

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

3625

*tcp_server.socket.getsockname())

3459

3626

3460

3627

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

3461

3628

3465

3632

try:

3466

3633

service.activate()

3467

3634

except dbus.exceptions.DBusException as error:

3468

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

3635

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

3469

3636

cleanup()

3470

3637

sys.exit(1)

3471

3638

# End of Avahi example code

3472

3639

3473

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

3474

lambda *args, **kwargs:

3475

(tcp_server.handle_request

3476

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

3640

GLib.io_add_watch(

3641

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

3642

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

3643

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

3644

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

3477

3645

3478

logger.debug("Starting main loop")

3646

log.debug("Starting main loop")

3479

3647

main_loop.run()

3480

3648

except AvahiError as error:

3481

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

3649

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

3482

3650

cleanup()

3483

3651

sys.exit(1)

3484

3652

except KeyboardInterrupt:

3485

3653

if debug:

3486

3654

print("", file=sys.stderr)

3487

logger.debug("Server received KeyboardInterrupt")

3488

logger.debug("Server exiting")

3655

log.debug("Server received KeyboardInterrupt")

3656

log.debug("Server exiting")

3489

3657

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

3490

3658

cleanup()

3491

3659

3492

3493

if __name__ == '__main__':

3494

main()

3660

3661

def parse_test_args():

3662

# type: () -> argparse.Namespace

3663

parser = argparse.ArgumentParser(add_help=False)

3664

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

3665

parser.add_argument("--prefix", )

3666

args, unknown_args = parser.parse_known_args()

3667

if args.check:

3668

# Remove test options from sys.argv

3669

sys.argv[1:] = unknown_args

3670

return args

3671

3672

# Add all tests from doctest strings

3673

def load_tests(loader, tests, none):

3674

import doctest

3675

tests.addTests(doctest.DocTestSuite())

3676

return tests

3677

3678

if __name__ == "__main__":

3679

options = parse_test_args()

3680

try:

3681

if options.check:

3682

extra_test_prefix = options.prefix

3683

if extra_test_prefix is not None:

3684

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

3685

.result.wasSuccessful()):

3686

sys.exit(1)

3687

class ExtraTestLoader(unittest.TestLoader):

3688

testMethodPrefix = extra_test_prefix

3689

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

3690

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

3691

else:

3692

unittest.main(argv=[""])

3693

else:

3694

main()

3695

finally:

3696

logging.shutdown()

3697

3698

# Local Variables:

3699

# run-tests:

3700

# (lambda (&optional extra)

3701

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

3702

# extra))

3703

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

3704

# (funcall remove-test-window)

3705

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

3706

# run-tests-in-test-buffer:

3707

# (lambda (dir &optional extra)

3708

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

3709

# (setq buffer-read-only nil

3710

# default-directory dir)

3711

# (erase-buffer)

3712

# (compilation-mode))

3713

# (let ((process-result

3714

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

3715

# (process-file-shell-command

3716

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

3717

# (and (numberp process-result)

3718

# (= process-result 0))))

3719

# get-command-line:

3720

# (lambda (&optional extra)

3721

# (let ((quoted-script

3722

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

3723

# (format

3724

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

3725

# quoted-script)))

3726

# get-script-name:

3727

# (lambda ()

3728

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

3729

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

3730

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

3731

# (buffer-file-name))))

3732

# remove-test-window:

3733

# (lambda ()

3734

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

3735

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

3736

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

3737

# (lambda ()

3738

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

3739

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

3740

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

3741

# (display-buffer-overriding-action

3742

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

3743

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

3744

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

3745

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

3746

# eval:

3747

# (progn

3748

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

3749

# (funcall run-tests t)))

3750

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

3751

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

3752

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

3753

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

3754

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

3755

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

3756

# End: