/mandos/release : revision 237.7.801

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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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# -*- 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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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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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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# 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 = "1.7.16"

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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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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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("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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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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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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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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"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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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 = AvahiService.rename(self, *args, **kwargs)

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

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**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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# Pretend that we have a GnuTLS module

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class GnuTLS(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 a GnuTLS module."""

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class gnutls:

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

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

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if library is None:

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

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_library = ctypes.cdll.LoadLibrary(library)

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del library

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_need_version = b"3.3.0"

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def __init__(self):

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

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

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

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

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.format(self._need_version))

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# Unless otherwise indicated, the constants and types below are

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

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E_INTERRUPTED = -52

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E_AGAIN = -28

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CRT_OPENPGP = 2

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CRT_RAWPK = 3

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CLIENT = 2

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SHUT_RDWR = 0

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CRD_CERTIFICATE = 1

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E_NO_CERTIFICATE_FOUND = -49

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X509_FMT_DER = 0

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NO_TICKETS = 1<<10

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ENABLE_RAWPK = 1<<18

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CTYPE_PEERS = 3

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KEYID_USE_SHA256 = 1 # gnutls/x509.h

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OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h

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# Types

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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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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):

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_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)),

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("size", ctypes.c_uint)]

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class openpgp_crt_int(ctypes.Structure):

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class _openpgp_crt_int(ctypes.Structure):

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_fields_ = []

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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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# Exceptions

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class Error(Exception):

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

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# exception might be raised from within GnuTLS.__init__,

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

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# global variable has happened.

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

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

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# code is passed, convert it to a string with

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# gnutls.strerror()

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self.code = code

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if message is None and code is not None:

575

message = GnuTLS.strerror(code)

576

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

597

message = gnutls.strerror(code).decode(

598

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

599

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

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message, *args)

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class CertificateSecurityError(Error):

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pass

581

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class PointerTo:

606

def __init__(self, cls):

607

self.cls = cls

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609

def from_param(self, obj):

610

if not isinstance(obj, self.cls):

611

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

612

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

613

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

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class CastToVoidPointer:

616

def __init__(self, cls):

617

self.cls = cls

618

619

def from_param(self, obj):

620

if not isinstance(obj, self.cls):

621

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

622

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

623

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

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625

class With_from_param:

626

@classmethod

627

def from_param(cls, obj):

628

return obj._as_parameter_

629

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# Classes

583

class Credentials(object):

631

class Credentials(With_from_param):

584

632

def __init__(self):

585

self._c_object = gnutls.certificate_credentials_t()

586

gnutls.certificate_allocate_credentials(

587

ctypes.byref(self._c_object))

633

self._as_parameter_ = gnutls.certificate_credentials_t()

634

gnutls.certificate_allocate_credentials(self)

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self.type = gnutls.CRD_CERTIFICATE

589

636

590

637

def __del__(self):

591

gnutls.certificate_free_credentials(self._c_object)

638

gnutls.certificate_free_credentials(self)

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639

593

class ClientSession(object):

640

class ClientSession(With_from_param):

594

641

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)

642

self._as_parameter_ = gnutls.session_t()

643

gnutls_flags = gnutls.CLIENT

644

if gnutls.check_version(b"3.5.6"):

645

gnutls_flags |= gnutls.NO_TICKETS

646

if gnutls.has_rawpk:

647

gnutls_flags |= gnutls.ENABLE_RAWPK

648

gnutls.init(self, gnutls_flags)

649

del gnutls_flags

650

gnutls.set_default_priority(self)

651

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

652

gnutls.handshake_set_private_extensions(self, True)

601

653

self.socket = socket

602

654

if credentials is None:

603

655

credentials = gnutls.Credentials()

604

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

605

ctypes.cast(credentials._c_object,

606

ctypes.c_void_p))

656

gnutls.credentials_set(self, credentials.type,

657

credentials)

607

658

self.credentials = credentials

608

659

609

660

def __del__(self):

610

gnutls.deinit(self._c_object)

661

gnutls.deinit(self)

611

662

612

663

def handshake(self):

613

return gnutls.handshake(self._c_object)

664

return gnutls.handshake(self)

614

665

615

666

def send(self, data):

616

667

data = bytes(data)

617

668

data_len = len(data)

618

669

while data_len > 0:

619

data_len -= gnutls.record_send(self._c_object,

620

data[-data_len:],

670

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

621

671

data_len)

622

672

623

673

def bye(self):

624

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

674

return gnutls.bye(self, gnutls.SHUT_RDWR)

625

675

626

676

# Error handling functions

627

677

def _error_code(result):

628

678

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

629

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

630

if result >= 0:

679

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

680

if result >= gnutls.E_SUCCESS:

631

681

return result

632

682

if result == gnutls.E_NO_CERTIFICATE_FOUND:

633

683

raise gnutls.CertificateSecurityError(code=result)

634

684

raise gnutls.Error(code=result)

635

685

636

def _retry_on_error(result, func, arguments):

686

def _retry_on_error(result, func, arguments,

687

_error_code=_error_code):

637

688

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

638

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

639

while result < 0:

689

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

690

while result < gnutls.E_SUCCESS:

640

691

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

641

692

return _error_code(result)

642

693

result = func(*arguments)

647

698

648

699

# Functions

649

700

priority_set_direct = _library.gnutls_priority_set_direct

650

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

701

priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,

651

702

ctypes.POINTER(ctypes.c_char_p)]

652

703

priority_set_direct.restype = _error_code

653

704

654

705

init = _library.gnutls_init

655

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

706

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

656

707

init.restype = _error_code

657

708

658

709

set_default_priority = _library.gnutls_set_default_priority

659

set_default_priority.argtypes = [session_t]

710

set_default_priority.argtypes = [ClientSession]

660

711

set_default_priority.restype = _error_code

661

712

662

713

record_send = _library.gnutls_record_send

663

record_send.argtypes = [session_t, ctypes.c_void_p,

714

record_send.argtypes = [ClientSession, ctypes.c_void_p,

664

715

ctypes.c_size_t]

665

716

record_send.restype = ctypes.c_ssize_t

666

717

record_send.errcheck = _retry_on_error

668

719

certificate_allocate_credentials = (

669

720

_library.gnutls_certificate_allocate_credentials)

670

721

certificate_allocate_credentials.argtypes = [

671

ctypes.POINTER(certificate_credentials_t)]

722

PointerTo(Credentials)]

672

723

certificate_allocate_credentials.restype = _error_code

673

724

674

725

certificate_free_credentials = (

675

726

_library.gnutls_certificate_free_credentials)

676

certificate_free_credentials.argtypes = [

677

certificate_credentials_t]

727

certificate_free_credentials.argtypes = [Credentials]

678

728

certificate_free_credentials.restype = None

679

729

680

730

handshake_set_private_extensions = (

681

731

_library.gnutls_handshake_set_private_extensions)

682

handshake_set_private_extensions.argtypes = [session_t,

732

handshake_set_private_extensions.argtypes = [ClientSession,

683

733

ctypes.c_int]

684

734

handshake_set_private_extensions.restype = None

685

735

686

736

credentials_set = _library.gnutls_credentials_set

687

credentials_set.argtypes = [session_t, credentials_type_t,

688

ctypes.c_void_p]

737

credentials_set.argtypes = [ClientSession, credentials_type_t,

738

CastToVoidPointer(Credentials)]

689

739

credentials_set.restype = _error_code

690

740

691

741

strerror = _library.gnutls_strerror

693

743

strerror.restype = ctypes.c_char_p

694

744

695

745

certificate_type_get = _library.gnutls_certificate_type_get

696

certificate_type_get.argtypes = [session_t]

746

certificate_type_get.argtypes = [ClientSession]

697

747

certificate_type_get.restype = _error_code

698

748

699

749

certificate_get_peers = _library.gnutls_certificate_get_peers

700

certificate_get_peers.argtypes = [session_t,

750

certificate_get_peers.argtypes = [ClientSession,

701

751

ctypes.POINTER(ctypes.c_uint)]

702

752

certificate_get_peers.restype = ctypes.POINTER(datum_t)

703

753

710

760

global_set_log_function.restype = None

711

761

712

762

deinit = _library.gnutls_deinit

713

deinit.argtypes = [session_t]

763

deinit.argtypes = [ClientSession]

714

764

deinit.restype = None

715

765

716

766

handshake = _library.gnutls_handshake

717

handshake.argtypes = [session_t]

718

handshake.restype = _error_code

767

handshake.argtypes = [ClientSession]

768

handshake.restype = ctypes.c_int

719

769

handshake.errcheck = _retry_on_error

720

770

721

771

transport_set_ptr = _library.gnutls_transport_set_ptr

722

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

772

transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]

723

773

transport_set_ptr.restype = None

724

774

725

775

bye = _library.gnutls_bye

726

bye.argtypes = [session_t, close_request_t]

727

bye.restype = _error_code

776

bye.argtypes = [ClientSession, close_request_t]

777

bye.restype = ctypes.c_int

728

778

bye.errcheck = _retry_on_error

729

779

730

780

check_version = _library.gnutls_check_version

731

781

check_version.argtypes = [ctypes.c_char_p]

732

782

check_version.restype = ctypes.c_char_p

733

783

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

784

_need_version = b"3.3.0"

785

if check_version(_need_version) is None:

786

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

787

.format(_need_version))

788

789

_tls_rawpk_version = b"3.6.6"

790

has_rawpk = bool(check_version(_tls_rawpk_version))

791

792

if has_rawpk:

793

# Types

794

class pubkey_st(ctypes.Structure):

795

_fields = []

796

pubkey_t = ctypes.POINTER(pubkey_st)

797

798

x509_crt_fmt_t = ctypes.c_int

799

800

# All the function declarations below are from

801

# gnutls/abstract.h

802

pubkey_init = _library.gnutls_pubkey_init

803

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

804

pubkey_init.restype = _error_code

805

806

pubkey_import = _library.gnutls_pubkey_import

807

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

808

x509_crt_fmt_t]

809

pubkey_import.restype = _error_code

810

811

pubkey_get_key_id = _library.gnutls_pubkey_get_key_id

812

pubkey_get_key_id.argtypes = [pubkey_t, ctypes.c_int,

813

ctypes.POINTER(ctypes.c_ubyte),

814

ctypes.POINTER(ctypes.c_size_t)]

815

pubkey_get_key_id.restype = _error_code

816

817

pubkey_deinit = _library.gnutls_pubkey_deinit

818

pubkey_deinit.argtypes = [pubkey_t]

819

pubkey_deinit.restype = None

820

else:

821

# All the function declarations below are from

822

# gnutls/openpgp.h

823

824

openpgp_crt_init = _library.gnutls_openpgp_crt_init

825

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

826

openpgp_crt_init.restype = _error_code

827

828

openpgp_crt_import = _library.gnutls_openpgp_crt_import

829

openpgp_crt_import.argtypes = [openpgp_crt_t,

830

ctypes.POINTER(datum_t),

831

openpgp_crt_fmt_t]

832

openpgp_crt_import.restype = _error_code

833

834

openpgp_crt_verify_self = \

835

_library.gnutls_openpgp_crt_verify_self

836

openpgp_crt_verify_self.argtypes = [

837

openpgp_crt_t,

838

ctypes.c_uint,

839

ctypes.POINTER(ctypes.c_uint),

840

]

841

openpgp_crt_verify_self.restype = _error_code

842

843

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

844

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

845

openpgp_crt_deinit.restype = None

846

847

openpgp_crt_get_fingerprint = (

848

_library.gnutls_openpgp_crt_get_fingerprint)

849

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

850

ctypes.c_void_p,

851

ctypes.POINTER(

852

ctypes.c_size_t)]

853

openpgp_crt_get_fingerprint.restype = _error_code

854

855

if check_version(b"3.6.4"):

856

certificate_type_get2 = _library.gnutls_certificate_type_get2

857

certificate_type_get2.argtypes = [ClientSession, ctypes.c_int]

858

certificate_type_get2.restype = _error_code

762

859

763

860

# Remove non-public functions

764

861

del _error_code, _retry_on_error

765

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

766

gnutls = GnuTLS()

767

862

768

863

769

864

def call_pipe(connection, # : multiprocessing.Connection

777

872

connection.close()

778

873

779

874

780

class Client(object):

875

class Client:

781

876

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

782

877

783

878

Attributes:

784

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

879

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

785

880

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

786

881

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.

882

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

883

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

884

running.

790

885

checker_callback_tag: a GLib event source tag, or None

791

886

checker_command: string; External command which is run to check

792

887

if client lives. %() expansions are done at

800

895

disable_initiator_tag: a GLib event source tag, or None

801

896

enabled: bool()

802

897

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

803

uniquely identify the client

898

uniquely identify an OpenPGP client

899

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

900

a client using raw public keys

804

901

host: string; available for use by the checker command

805

902

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

806

903

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

824

921

"""

825

922

826

923

runtime_expansions = ("approval_delay", "approval_duration",

827

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

924

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

828

925

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

829

926

"last_approval_request", "last_checked_ok",

830

927

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

860

957

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

861

958

"enabled")

862

959

863

# Uppercase and remove spaces from fingerprint for later

864

# comparison purposes with return value from the

865

# fingerprint() function

960

# Uppercase and remove spaces from key_id and fingerprint

961

# for later comparison purposes with return value from the

962

# key_id() and fingerprint() functions

963

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

964

.replace(" ", ""))

866

965

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

867

966

.replace(" ", ""))

868

967

if "secret" in section:

912

1011

self.expires = None

913

1012

914

1013

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

1014

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

915

1015

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

916

1016

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

917

1017

datetime.datetime.utcnow())

981

1081

if self.checker_initiator_tag is not None:

982

1082

GLib.source_remove(self.checker_initiator_tag)

983

1083

self.checker_initiator_tag = GLib.timeout_add(

984

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

1084

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

1085

+ 1)),

985

1086

self.start_checker)

986

1087

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

987

1088

if self.disable_initiator_tag is not None:

994

1095

def checker_callback(self, source, condition, connection,

995

1096

command):

996

1097

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

997

self.checker_callback_tag = None

998

self.checker = None

999

1098

# Read return code from connection (see call_pipe)

1000

1099

returncode = connection.recv()

1001

1100

connection.close()

1101

if self.checker is not None:

1102

self.checker.join()

1103

self.checker_callback_tag = None

1104

self.checker = None

1002

1105

1003

1106

if returncode >= 0:

1004

1107

self.last_checker_status = returncode

1060

1163

if self.checker is None:

1061

1164

# Escape attributes for the shell

1062

1165

escaped_attrs = {

1063

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

1166

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

1064

1167

for attr in self.runtime_expansions}

1065

1168

try:

1066

1169

command = self.checker_command % escaped_attrs

1093

1196

kwargs=popen_args)

1094

1197

self.checker.start()

1095

1198

self.checker_callback_tag = GLib.io_add_watch(

1096

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

1199

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

1200

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

1097

1201

self.checker_callback, pipe[0], command)

1098

1202

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

1099

1203

return True

1138

1242

func._dbus_name = func.__name__

1139

1243

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

1140

1244

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

1141

func._dbus_get_args_options = {'byte_arrays': byte_arrays}

1245

func._dbus_get_args_options = {"byte_arrays": byte_arrays}

1142

1246

return func

1143

1247

1144

1248

return decorator

1233

1337

1234

1338

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1235

1339

out_signature="s",

1236

path_keyword='object_path',

1237

connection_keyword='connection')

1340

path_keyword="object_path",

1341

connection_keyword="connection")

1238

1342

def Introspect(self, object_path, connection):

1239

1343

"""Overloading of standard D-Bus method.

1240

1344

1354

1458

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

1355

1459

"'ay' signature {!r}"

1356

1460

.format(prop._dbus_signature))

1357

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

1358

for byte in value))

1461

value = dbus.ByteArray(bytes(value))

1359

1462

prop(value)

1360

1463

1361

1464

@dbus.service.method(dbus.PROPERTIES_IFACE,

1394

1497

1395

1498

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1396

1499

out_signature="s",

1397

path_keyword='object_path',

1398

connection_keyword='connection')

1500

path_keyword="object_path",

1501

connection_keyword="connection")

1399

1502

def Introspect(self, object_path, connection):

1400

1503

"""Overloading of standard D-Bus method.

1401

1504

1496

1599

1497

1600

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1498

1601

out_signature="s",

1499

path_keyword='object_path',

1500

connection_keyword='connection')

1602

path_keyword="object_path",

1603

connection_keyword="connection")

1501

1604

def Introspect(self, object_path, connection):

1502

1605

"""Overloading of standard D-Bus method.

1503

1606

1999

2102

def Name_dbus_property(self):

2000

2103

return dbus.String(self.name)

2001

2104

2105

# KeyID - property

2106

@dbus_annotations(

2107

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

2108

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

2109

def KeyID_dbus_property(self):

2110

return dbus.String(self.key_id)

2111

2002

2112

# Fingerprint - property

2003

2113

@dbus_annotations(

2004

2114

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

2159

2269

del _interface

2160

2270

2161

2271

2162

class ProxyClient(object):

2163

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

2272

class ProxyClient:

2273

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

2164

2274

self._pipe = child_pipe

2165

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

2275

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

2166

2276

if not self._pipe.recv():

2167

raise KeyError(fpr)

2277

raise KeyError(key_id or fpr)

2168

2278

2169

2279

def __getattribute__(self, name):

2170

if name == '_pipe':

2280

if name == "_pipe":

2171

2281

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

2172

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

2282

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

2173

2283

data = self._pipe.recv()

2174

if data[0] == 'data':

2284

if data[0] == "data":

2175

2285

return data[1]

2176

if data[0] == 'function':

2286

if data[0] == "function":

2177

2287

2178

2288

def func(*args, **kwargs):

2179

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

2289

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

2180

2290

return self._pipe.recv()[1]

2181

2291

2182

2292

return func

2183

2293

2184

2294

def __setattr__(self, name, value):

2185

if name == '_pipe':

2295

if name == "_pipe":

2186

2296

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

2187

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

2297

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

2188

2298

2189

2299

2190

2300

class ClientHandler(socketserver.BaseRequestHandler, object):

2202

2312

2203

2313

session = gnutls.ClientSession(self.request)

2204

2314

2205

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

2315

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

2206

2316

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

2207

2317

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

2208

2318

# "+DHE-DSS"))

2210

2320

priority = self.server.gnutls_priority

2211

2321

if priority is None:

2212

2322

priority = "NORMAL"

2213

gnutls.priority_set_direct(session._c_object,

2214

priority.encode("utf-8"),

2215

None)

2323

gnutls.priority_set_direct(session,

2324

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

2216

2325

2217

2326

# Start communication using the Mandos protocol

2218

2327

# Get protocol number

2237

2346

2238

2347

approval_required = False

2239

2348

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,

2349

if gnutls.has_rawpk:

2350

fpr = b""

2351

try:

2352

key_id = self.key_id(

2353

self.peer_certificate(session))

2354

except (TypeError, gnutls.Error) as error:

2355

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

2356

return

2357

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

2358

key_id.decode("utf-8",

2359

errors="replace"))

2360

2361

else:

2362

key_id = b""

2363

try:

2364

fpr = self.fingerprint(

2365

self.peer_certificate(session))

2366

except (TypeError, gnutls.Error) as error:

2367

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

2368

return

2369

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

2370

2371

try:

2372

client = ProxyClient(child_pipe, key_id, fpr,

2250

2373

self.client_address)

2251

2374

except KeyError:

2252

2375

return

2329

2452

2330

2453

@staticmethod

2331

2454

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):

2455

"Return the peer's certificate as a bytestring"

2456

try:

2457

cert_type = gnutls.certificate_type_get2(

2458

session, gnutls.CTYPE_PEERS)

2459

except AttributeError:

2460

cert_type = gnutls.certificate_type_get(session)

2461

if gnutls.has_rawpk:

2462

valid_cert_types = frozenset((gnutls.CRT_RAWPK,))

2463

else:

2464

valid_cert_types = frozenset((gnutls.CRT_OPENPGP,))

2465

# If not a valid certificate type...

2466

if cert_type not in valid_cert_types:

2467

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

2468

valid_cert_types)

2336

2469

# ...return invalid data

2337

2470

return b""

2338

2471

list_size = ctypes.c_uint(1)

2339

2472

cert_list = (gnutls.certificate_get_peers

2340

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

2473

(session, ctypes.byref(list_size)))

2341

2474

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

2342

2475

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

2343

2476

if list_size.value == 0:

2346

2479

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

2347

2480

2348

2481

@staticmethod

2482

def key_id(certificate):

2483

"Convert a certificate bytestring to a hexdigit key ID"

2484

# New GnuTLS "datum" with the public key

2485

datum = gnutls.datum_t(

2486

ctypes.cast(ctypes.c_char_p(certificate),

2487

ctypes.POINTER(ctypes.c_ubyte)),

2488

ctypes.c_uint(len(certificate)))

2489

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

2490

# New empty GnuTLS certificate

2491

pubkey = gnutls.pubkey_t()

2492

gnutls.pubkey_init(ctypes.byref(pubkey))

2493

# Import the raw public key into the certificate

2494

gnutls.pubkey_import(pubkey,

2495

ctypes.byref(datum),

2496

gnutls.X509_FMT_DER)

2497

# New buffer for the key ID

2498

buf = ctypes.create_string_buffer(32)

2499

buf_len = ctypes.c_size_t(len(buf))

2500

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

2501

gnutls.pubkey_get_key_id(

2502

pubkey,

2503

gnutls.KEYID_USE_SHA256,

2504

ctypes.cast(ctypes.byref(buf),

2505

ctypes.POINTER(ctypes.c_ubyte)),

2506

ctypes.byref(buf_len))

2507

# Deinit the certificate

2508

gnutls.pubkey_deinit(pubkey)

2509

2510

# Convert the buffer to a Python bytestring

2511

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

2512

# Convert the bytestring to hexadecimal notation

2513

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

2514

return hex_key_id

2515

2516

@staticmethod

2349

2517

def fingerprint(openpgp):

2350

2518

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

2351

2519

# New GnuTLS "datum" with the OpenPGP public key

2365

2533

ctypes.byref(crtverify))

2366

2534

if crtverify.value != 0:

2367

2535

gnutls.openpgp_crt_deinit(crt)

2368

raise gnutls.CertificateSecurityError("Verify failed")

2536

raise gnutls.CertificateSecurityError(code

2537

=crtverify.value)

2369

2538

# New buffer for the fingerprint

2370

2539

buf = ctypes.create_string_buffer(20)

2371

2540

buf_len = ctypes.c_size_t()

2381

2550

return hex_fpr

2382

2551

2383

2552

2384

class MultiprocessingMixIn(object):

2553

class MultiprocessingMixIn:

2385

2554

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

2386

2555

2387

2556

def sub_process_main(self, request, address):

2399

2568

return proc

2400

2569

2401

2570

2402

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

2571

class MultiprocessingMixInWithPipe(MultiprocessingMixIn):

2403

2572

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

2404

2573

2405

2574

def process_request(self, request, client_address):

2420

2589

2421

2590

2422

2591

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

2423

socketserver.TCPServer, object):

2424

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

2592

socketserver.TCPServer):

2593

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

2425

2594

2426

2595

Attributes:

2427

2596

enabled: Boolean; whether this server is activated yet

2499

2668

raise

2500

2669

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

2501

2670

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

2671

if self.server_address[1]:

2672

self.allow_reuse_address = True

2502

2673

if not self.server_address[0]:

2503

2674

if self.address_family == socket.AF_INET6:

2504

2675

any_address = "::" # in6addr_any

2557

2728

def add_pipe(self, parent_pipe, proc):

2558

2729

# Call "handle_ipc" for both data and EOF events

2559

2730

GLib.io_add_watch(

2560

parent_pipe.fileno(),

2561

GLib.IO_IN | GLib.IO_HUP,

2731

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

2732

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

2562

2733

functools.partial(self.handle_ipc,

2563

2734

parent_pipe=parent_pipe,

2564

2735

proc=proc))

2577

2748

request = parent_pipe.recv()

2578

2749

command = request[0]

2579

2750

2580

if command == 'init':

2581

fpr = request[1]

2582

address = request[2]

2751

if command == "init":

2752

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

2753

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

2754

address = request[3]

2583

2755

2584

2756

for c in self.clients.values():

2585

if c.fingerprint == fpr:

2757

if key_id == ("E3B0C44298FC1C149AFBF4C8996FB924"

2758

"27AE41E4649B934CA495991B7852B855"):

2759

continue

2760

if key_id and c.key_id == key_id:

2761

client = c

2762

break

2763

if fpr and c.fingerprint == fpr:

2586

2764

client = c

2587

2765

break

2588

2766

else:

2589

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

2590

"dress: %s", fpr, address)

2767

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

2768

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

2591

2769

if self.use_dbus:

2592

2770

# Emit D-Bus signal

2593

mandos_dbus_service.ClientNotFound(fpr,

2771

mandos_dbus_service.ClientNotFound(key_id or fpr,

2594

2772

address[0])

2595

2773

parent_pipe.send(False)

2596

2774

return False

2597

2775

2598

2776

GLib.io_add_watch(

2599

parent_pipe.fileno(),

2600

GLib.IO_IN | GLib.IO_HUP,

2777

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

2778

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

2601

2779

functools.partial(self.handle_ipc,

2602

2780

parent_pipe=parent_pipe,

2603

2781

proc=proc,

2606

2784

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

2607

2785

# same fileno

2608

2786

return False

2609

if command == 'funcall':

2787

if command == "funcall":

2610

2788

funcname = request[1]

2611

2789

args = request[2]

2612

2790

kwargs = request[3]

2613

2791

2614

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

2792

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

2615

2793

funcname)(*args,

2616

2794

**kwargs)))

2617

2795

2618

if command == 'getattr':

2796

if command == "getattr":

2619

2797

attrname = request[1]

2620

2798

if isinstance(client_object.__getattribute__(attrname),

2621

collections.Callable):

2622

parent_pipe.send(('function', ))

2799

collections.abc.Callable):

2800

parent_pipe.send(("function", ))

2623

2801

else:

2624

2802

parent_pipe.send((

2625

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

2803

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

2626

2804

2627

if command == 'setattr':

2805

if command == "setattr":

2628

2806

attrname = request[1]

2629

2807

value = request[2]

2630

2808

setattr(client_object, attrname, value)

2635

2813

def rfc3339_duration_to_delta(duration):

2636

2814

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

2637

2815

2638

>>> rfc3339_duration_to_delta("P7D")

2639

datetime.timedelta(7)

2640

>>> rfc3339_duration_to_delta("PT60S")

2641

datetime.timedelta(0, 60)

2642

>>> rfc3339_duration_to_delta("PT60M")

2643

datetime.timedelta(0, 3600)

2644

>>> rfc3339_duration_to_delta("PT24H")

2645

datetime.timedelta(1)

2646

>>> rfc3339_duration_to_delta("P1W")

2647

datetime.timedelta(7)

2648

>>> rfc3339_duration_to_delta("PT5M30S")

2649

datetime.timedelta(0, 330)

2650

>>> rfc3339_duration_to_delta("P1DT3M20S")

2651

datetime.timedelta(1, 200)

2816

>>> timedelta = datetime.timedelta

2817

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

2818

True

2819

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

2820

True

2821

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

2822

True

2823

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

2824

True

2825

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

2826

True

2827

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

2828

True

2829

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

2830

True

2831

>>> del timedelta

2652

2832

"""

2653

2833

2654

2834

# Parsing an RFC 3339 duration with regular expressions is not

2734

2914

def string_to_delta(interval):

2735

2915

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

2736

2916

2737

>>> string_to_delta('7d')

2738

datetime.timedelta(7)

2739

>>> string_to_delta('60s')

2740

datetime.timedelta(0, 60)

2741

>>> string_to_delta('60m')

2742

datetime.timedelta(0, 3600)

2743

>>> string_to_delta('24h')

2744

datetime.timedelta(1)

2745

>>> string_to_delta('1w')

2746

datetime.timedelta(7)

2747

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

2748

datetime.timedelta(0, 330)

2917

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

2918

True

2919

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

2920

True

2921

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

2922

True

2923

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

2924

True

2925

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

2926

True

2927

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

2928

True

2749

2929

"""

2750

2930

2751

2931

try:

2853

3033

2854

3034

options = parser.parse_args()

2855

3035

2856

if options.check:

2857

import doctest

2858

fail_count, test_count = doctest.testmod()

2859

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

2860

2861

3036

# Default values for config file for server-global settings

3037

if gnutls.has_rawpk:

3038

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

3039

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

3040

else:

3041

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

3042

":+SIGN-DSA-SHA256")

2862

3043

server_defaults = {"interface": "",

2863

3044

"address": "",

2864

3045

"port": "",

2865

3046

"debug": "False",

2866

"priority":

2867

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

2868

":+SIGN-DSA-SHA256",

3047

"priority": priority,

2869

3048

"servicename": "Mandos",

2870

3049

"use_dbus": "True",

2871

3050

"use_ipv6": "True",

2876

3055

"foreground": "False",

2877

3056

"zeroconf": "True",

2878

3057

}

3058

del priority

2879

3059

2880

3060

# Parse config file for server-global settings

2881

server_config = configparser.SafeConfigParser(server_defaults)

3061

server_config = configparser.ConfigParser(server_defaults)

2882

3062

del server_defaults

2883

3063

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

2884

# Convert the SafeConfigParser object to a dict

3064

# Convert the ConfigParser object to a dict

2885

3065

server_settings = server_config.defaults()

2886

3066

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

2887

3067

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

2954

3134

2955

3135

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

2956

3136

syslogger.setFormatter(

2957

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

2958

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

3137

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

3138

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

2959

3139

server_settings["servicename"])))

2960

3140

2961

3141

# Parse config file with clients

2962

client_config = configparser.SafeConfigParser(Client

2963

.client_defaults)

3142

client_config = configparser.ConfigParser(Client.client_defaults)

2964

3143

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

2965

3144

"clients.conf"))

2966

3145

3022

3201

3023

3202

@gnutls.log_func

3024

3203

def debug_gnutls(level, string):

3025

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

3204

logger.debug("GnuTLS: %s",

3205

string[:-1].decode("utf-8",

3206

errors="replace"))

3026

3207

3027

3208

gnutls.global_set_log_function(debug_gnutls)

3028

3209

3037

3218

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

3038

3219

daemon()

3039

3220

3040

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

3041

# to inform GLib that threads will be used.

3042

GLib.threads_init()

3221

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

3222

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

3223

# need to inform GLib that threads will be used.

3224

GLib.threads_init()

3043

3225

3044

3226

global main_loop

3045

3227

# From the Avahi example code

3121

3303

if isinstance(s, bytes)

3122

3304

else s) for s in

3123

3305

value["client_structure"]]

3124

# .name & .host

3125

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

3306

# .name, .host, and .checker_command

3307

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

3126

3308

if isinstance(value[k], bytes):

3127

3309

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

3310

if "key_id" not in value:

3311

value["key_id"] = ""

3312

elif "fingerprint" not in value:

3313

value["fingerprint"] = ""

3128

3314

# old_client_settings

3129

3315

# .keys()

3130

3316

old_client_settings = {

3134

3320

for key, value in

3135

3321

bytes_old_client_settings.items()}

3136

3322

del bytes_old_client_settings

3137

# .host

3323

# .host and .checker_command

3138

3324

for value in old_client_settings.values():

3139

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

3140

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

3141

.decode("utf-8"))

3325

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

3326

if isinstance(value[attribute], bytes):

3327

value[attribute] = (value[attribute]

3328

.decode("utf-8"))

3142

3329

os.remove(stored_state_path)

3143

3330

except IOError as e:

3144

3331

if e.errno == errno.ENOENT:

3267

3454

pass

3268

3455

3269

3456

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

3270

def ClientNotFound(self, fingerprint, address):

3457

def ClientNotFound(self, key_id, address):

3271

3458

"D-Bus signal"

3272

3459

pass

3273

3460

3397

3584

3398

3585

try:

3399

3586

with tempfile.NamedTemporaryFile(

3400

mode='wb',

3587

mode="wb",

3401

3588

suffix=".pickle",

3402

prefix='clients-',

3589

prefix="clients-",

3403

3590

dir=os.path.dirname(stored_state_path),

3404

3591

delete=False) as stored_state:

3405

3592

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

3469

3656

sys.exit(1)

3470

3657

# End of Avahi example code

3471

3658

3472

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

3473

lambda *args, **kwargs:

3474

(tcp_server.handle_request

3475

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

3659

GLib.io_add_watch(

3660

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

3661

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

3662

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

3663

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

3476

3664

3477

3665

logger.debug("Starting main loop")

3478

3666

main_loop.run()

3488

3676

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

3489

3677

cleanup()

3490

3678

3491

3492

if __name__ == '__main__':

3493

main()

3679

3680

def should_only_run_tests():

3681

parser = argparse.ArgumentParser(add_help=False)

3682

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

3683

args, unknown_args = parser.parse_known_args()

3684

run_tests = args.check

3685

if run_tests:

3686

# Remove --check argument from sys.argv

3687

sys.argv[1:] = unknown_args

3688

return run_tests

3689

3690

# Add all tests from doctest strings

3691

def load_tests(loader, tests, none):

3692

import doctest

3693

tests.addTests(doctest.DocTestSuite())

3694

return tests

3695

3696

if __name__ == "__main__":

3697

try:

3698

if should_only_run_tests():

3699

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

3700

unittest.main()

3701

else:

3702

main()

3703

finally:

3704

logging.shutdown()