/mandos/trunk : revision 1249

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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 program is free software: you can redistribute it and/or modify

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# it under the terms of the GNU General Public License as published by

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#

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# This file is part of Mandos.

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#

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# Mandos is free software: you can redistribute it and/or modify it

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# under the terms of the GNU General Public License as published by

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# the Free Software Foundation, either version 3 of the License, or

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# (at your option) any later version.

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#

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# Mandos is distributed in the hope that it will be useful, but

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# WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

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# GNU General Public License for more details.

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#

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# You should have received a copy of the GNU General Public License

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# along with this program. If not, see

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# <http://www.gnu.org/licenses/>.

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# along with Mandos. If not, see <http://www.gnu.org/licenses/>.

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#

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

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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 = "1.7.15"

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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:

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message = GnuTLS.strerror(code)

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

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message = gnutls.strerror(code).decode(

598

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

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

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message, *args)

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class CertificateSecurityError(Error):

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pass

580

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class PointerTo:

606

def __init__(self, cls):

607

self.cls = cls

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def from_param(self, obj):

610

if not isinstance(obj, self.cls):

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

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

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

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class CastToVoidPointer:

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def __init__(self, cls):

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self.cls = cls

618

619

def from_param(self, obj):

620

if not isinstance(obj, self.cls):

621

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

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

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

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class With_from_param:

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@classmethod

627

def from_param(cls, obj):

628

return obj._as_parameter_

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# Classes

582

class Credentials(object):

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class Credentials(With_from_param):

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632

def __init__(self):

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self._c_object = gnutls.certificate_credentials_t()

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gnutls.certificate_allocate_credentials(

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ctypes.byref(self._c_object))

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self._as_parameter_ = gnutls.certificate_credentials_t()

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gnutls.certificate_allocate_credentials(self)

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self.type = gnutls.CRD_CERTIFICATE

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def __del__(self):

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gnutls.certificate_free_credentials(self._c_object)

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gnutls.certificate_free_credentials(self)

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639

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class ClientSession(object):

640

class ClientSession(With_from_param):

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

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self._c_object = gnutls.session_t()

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

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gnutls.set_default_priority(self._c_object)

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

598

gnutls.handshake_set_private_extensions(self._c_object,

599

True)

642

self._as_parameter_ = gnutls.session_t()

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gnutls_flags = gnutls.CLIENT

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if gnutls.check_version(b"3.5.6"):

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gnutls_flags |= gnutls.NO_TICKETS

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if gnutls.has_rawpk:

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gnutls_flags |= gnutls.ENABLE_RAWPK

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gnutls.init(self, gnutls_flags)

649

del gnutls_flags

650

gnutls.set_default_priority(self)

651

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

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gnutls.handshake_set_private_extensions(self, True)

600

653

self.socket = socket

601

654

if credentials is None:

602

655

credentials = gnutls.Credentials()

603

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

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ctypes.cast(credentials._c_object,

605

ctypes.c_void_p))

656

gnutls.credentials_set(self, credentials.type,

657

credentials)

606

658

self.credentials = credentials

607

659

608

660

def __del__(self):

609

gnutls.deinit(self._c_object)

661

gnutls.deinit(self)

610

662

611

663

def handshake(self):

612

return gnutls.handshake(self._c_object)

664

return gnutls.handshake(self)

613

665

614

666

def send(self, data):

615

667

data = bytes(data)

616

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data_len = len(data)

617

669

while data_len > 0:

618

data_len -= gnutls.record_send(self._c_object,

619

data[-data_len:],

670

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

620

671

data_len)

621

672

622

673

def bye(self):

623

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

674

return gnutls.bye(self, gnutls.SHUT_RDWR)

624

675

625

676

# Error handling functions

626

677

def _error_code(result):

627

678

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

628

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

629

if result >= 0:

679

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

680

if result >= gnutls.E_SUCCESS:

630

681

return result

631

682

if result == gnutls.E_NO_CERTIFICATE_FOUND:

632

683

raise gnutls.CertificateSecurityError(code=result)

633

684

raise gnutls.Error(code=result)

634

685

635

def _retry_on_error(result, func, arguments):

686

def _retry_on_error(result, func, arguments,

687

_error_code=_error_code):

636

688

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

637

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

638

while result < 0:

689

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

690

while result < gnutls.E_SUCCESS:

639

691

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

640

692

return _error_code(result)

641

693

result = func(*arguments)

646

698

647

699

# Functions

648

700

priority_set_direct = _library.gnutls_priority_set_direct

649

priority_set_direct.argtypes = [session_t, ctypes.c_char_p,

701

priority_set_direct.argtypes = [ClientSession, ctypes.c_char_p,

650

702

ctypes.POINTER(ctypes.c_char_p)]

651

703

priority_set_direct.restype = _error_code

652

704

653

705

init = _library.gnutls_init

654

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

706

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

655

707

init.restype = _error_code

656

708

657

709

set_default_priority = _library.gnutls_set_default_priority

658

set_default_priority.argtypes = [session_t]

710

set_default_priority.argtypes = [ClientSession]

659

711

set_default_priority.restype = _error_code

660

712

661

713

record_send = _library.gnutls_record_send

662

record_send.argtypes = [session_t, ctypes.c_void_p,

714

record_send.argtypes = [ClientSession, ctypes.c_void_p,

663

715

ctypes.c_size_t]

664

716

record_send.restype = ctypes.c_ssize_t

665

717

record_send.errcheck = _retry_on_error

667

719

certificate_allocate_credentials = (

668

720

_library.gnutls_certificate_allocate_credentials)

669

721

certificate_allocate_credentials.argtypes = [

670

ctypes.POINTER(certificate_credentials_t)]

722

PointerTo(Credentials)]

671

723

certificate_allocate_credentials.restype = _error_code

672

724

673

725

certificate_free_credentials = (

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726

_library.gnutls_certificate_free_credentials)

675

certificate_free_credentials.argtypes = [

676

certificate_credentials_t]

727

certificate_free_credentials.argtypes = [Credentials]

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728

certificate_free_credentials.restype = None

678

729

679

730

handshake_set_private_extensions = (

680

731

_library.gnutls_handshake_set_private_extensions)

681

handshake_set_private_extensions.argtypes = [session_t,

732

handshake_set_private_extensions.argtypes = [ClientSession,

682

733

ctypes.c_int]

683

734

handshake_set_private_extensions.restype = None

684

735

685

736

credentials_set = _library.gnutls_credentials_set

686

credentials_set.argtypes = [session_t, credentials_type_t,

687

ctypes.c_void_p]

737

credentials_set.argtypes = [ClientSession, credentials_type_t,

738

CastToVoidPointer(Credentials)]

688

739

credentials_set.restype = _error_code

689

740

690

741

strerror = _library.gnutls_strerror

692

743

strerror.restype = ctypes.c_char_p

693

744

694

745

certificate_type_get = _library.gnutls_certificate_type_get

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certificate_type_get.argtypes = [session_t]

746

certificate_type_get.argtypes = [ClientSession]

696

747

certificate_type_get.restype = _error_code

697

748

698

749

certificate_get_peers = _library.gnutls_certificate_get_peers

699

certificate_get_peers.argtypes = [session_t,

750

certificate_get_peers.argtypes = [ClientSession,

700

751

ctypes.POINTER(ctypes.c_uint)]

701

752

certificate_get_peers.restype = ctypes.POINTER(datum_t)

702

753

709

760

global_set_log_function.restype = None

710

761

711

762

deinit = _library.gnutls_deinit

712

deinit.argtypes = [session_t]

763

deinit.argtypes = [ClientSession]

713

764

deinit.restype = None

714

765

715

766

handshake = _library.gnutls_handshake

716

handshake.argtypes = [session_t]

717

handshake.restype = _error_code

767

handshake.argtypes = [ClientSession]

768

handshake.restype = ctypes.c_int

718

769

handshake.errcheck = _retry_on_error

719

770

720

771

transport_set_ptr = _library.gnutls_transport_set_ptr

721

transport_set_ptr.argtypes = [session_t, transport_ptr_t]

772

transport_set_ptr.argtypes = [ClientSession, transport_ptr_t]

722

773

transport_set_ptr.restype = None

723

774

724

775

bye = _library.gnutls_bye

725

bye.argtypes = [session_t, close_request_t]

726

bye.restype = _error_code

776

bye.argtypes = [ClientSession, close_request_t]

777

bye.restype = ctypes.c_int

727

778

bye.errcheck = _retry_on_error

728

779

729

780

check_version = _library.gnutls_check_version

730

781

check_version.argtypes = [ctypes.c_char_p]

731

782

check_version.restype = ctypes.c_char_p

732

783

733

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

734

735

openpgp_crt_init = _library.gnutls_openpgp_crt_init

736

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

737

openpgp_crt_init.restype = _error_code

738

739

openpgp_crt_import = _library.gnutls_openpgp_crt_import

740

openpgp_crt_import.argtypes = [openpgp_crt_t,

741

ctypes.POINTER(datum_t),

742

openpgp_crt_fmt_t]

743

openpgp_crt_import.restype = _error_code

744

745

openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self

746

openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,

747

ctypes.POINTER(ctypes.c_uint)]

748

openpgp_crt_verify_self.restype = _error_code

749

750

openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit

751

openpgp_crt_deinit.argtypes = [openpgp_crt_t]

752

openpgp_crt_deinit.restype = None

753

754

openpgp_crt_get_fingerprint = (

755

_library.gnutls_openpgp_crt_get_fingerprint)

756

openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,

757

ctypes.c_void_p,

758

ctypes.POINTER(

759

ctypes.c_size_t)]

760

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

761

859

762

860

# Remove non-public functions

763

861

del _error_code, _retry_on_error

764

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

765

gnutls = GnuTLS()

766

862

767

863

768

864

def call_pipe(connection, # : multiprocessing.Connection

776

872

connection.close()

777

873

778

874

779

class Client(object):

875

class Client:

780

876

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

781

877

782

878

Attributes:

783

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

879

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

784

880

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

785

881

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

786

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

787

to see if the client lives.

788

'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.

789

885

checker_callback_tag: a GLib event source tag, or None

790

886

checker_command: string; External command which is run to check

791

887

if client lives. %() expansions are done at

799

895

disable_initiator_tag: a GLib event source tag, or None

800

896

enabled: bool()

801

897

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

802

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

803

901

host: string; available for use by the checker command

804

902

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

805

903

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

823

921

"""

824

922

825

923

runtime_expansions = ("approval_delay", "approval_duration",

826

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

924

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

827

925

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

828

926

"last_approval_request", "last_checked_ok",

829

927

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

859

957

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

860

958

"enabled")

861

959

862

# Uppercase and remove spaces from fingerprint for later

863

# comparison purposes with return value from the

864

# 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(" ", ""))

865

965

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

866

966

.replace(" ", ""))

867

967

if "secret" in section:

911

1011

self.expires = None

912

1012

913

1013

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

1014

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

914

1015

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

915

1016

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

916

1017

datetime.datetime.utcnow())

980

1081

if self.checker_initiator_tag is not None:

981

1082

GLib.source_remove(self.checker_initiator_tag)

982

1083

self.checker_initiator_tag = GLib.timeout_add(

983

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

1084

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

1085

+ 1)),

984

1086

self.start_checker)

985

1087

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

986

1088

if self.disable_initiator_tag is not None:

993

1095

def checker_callback(self, source, condition, connection,

994

1096

command):

995

1097

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

996

self.checker_callback_tag = None

997

self.checker = None

998

1098

# Read return code from connection (see call_pipe)

999

1099

returncode = connection.recv()

1000

1100

connection.close()

1101

if self.checker is not None:

1102

self.checker.join()

1103

self.checker_callback_tag = None

1104

self.checker = None

1001

1105

1002

1106

if returncode >= 0:

1003

1107

self.last_checker_status = returncode

1059

1163

if self.checker is None:

1060

1164

# Escape attributes for the shell

1061

1165

escaped_attrs = {

1062

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

1166

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

1063

1167

for attr in self.runtime_expansions}

1064

1168

try:

1065

1169

command = self.checker_command % escaped_attrs

1092

1196

kwargs=popen_args)

1093

1197

self.checker.start()

1094

1198

self.checker_callback_tag = GLib.io_add_watch(

1095

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

1199

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

1200

GLib.PRIORITY_DEFAULT, GLib.IO_IN,

1096

1201

self.checker_callback, pipe[0], command)

1097

1202

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

1098

1203

return True

1137

1242

func._dbus_name = func.__name__

1138

1243

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

1139

1244

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

1140

func._dbus_get_args_options = {'byte_arrays': byte_arrays}

1245

func._dbus_get_args_options = {"byte_arrays": byte_arrays}

1141

1246

return func

1142

1247

1143

1248

return decorator

1232

1337

1233

1338

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1234

1339

out_signature="s",

1235

path_keyword='object_path',

1236

connection_keyword='connection')

1340

path_keyword="object_path",

1341

connection_keyword="connection")

1237

1342

def Introspect(self, object_path, connection):

1238

1343

"""Overloading of standard D-Bus method.

1239

1344

1353

1458

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

1354

1459

"'ay' signature {!r}"

1355

1460

.format(prop._dbus_signature))

1356

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

1357

for byte in value))

1461

value = dbus.ByteArray(bytes(value))

1358

1462

prop(value)

1359

1463

1360

1464

@dbus.service.method(dbus.PROPERTIES_IFACE,

1393

1497

1394

1498

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1395

1499

out_signature="s",

1396

path_keyword='object_path',

1397

connection_keyword='connection')

1500

path_keyword="object_path",

1501

connection_keyword="connection")

1398

1502

def Introspect(self, object_path, connection):

1399

1503

"""Overloading of standard D-Bus method.

1400

1504

1495

1599

1496

1600

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

1497

1601

out_signature="s",

1498

path_keyword='object_path',

1499

connection_keyword='connection')

1602

path_keyword="object_path",

1603

connection_keyword="connection")

1500

1604

def Introspect(self, object_path, connection):

1501

1605

"""Overloading of standard D-Bus method.

1502

1606

1998

2102

def Name_dbus_property(self):

1999

2103

return dbus.String(self.name)

2000

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

2001

2112

# Fingerprint - property

2002

2113

@dbus_annotations(

2003

2114

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

2158

2269

del _interface

2159

2270

2160

2271

2161

class ProxyClient(object):

2162

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

2272

class ProxyClient:

2273

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

2163

2274

self._pipe = child_pipe

2164

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

2275

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

2165

2276

if not self._pipe.recv():

2166

raise KeyError(fpr)

2277

raise KeyError(key_id or fpr)

2167

2278

2168

2279

def __getattribute__(self, name):

2169

if name == '_pipe':

2280

if name == "_pipe":

2170

2281

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

2171

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

2282

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

2172

2283

data = self._pipe.recv()

2173

if data[0] == 'data':

2284

if data[0] == "data":

2174

2285

return data[1]

2175

if data[0] == 'function':

2286

if data[0] == "function":

2176

2287

2177

2288

def func(*args, **kwargs):

2178

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

2289

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

2179

2290

return self._pipe.recv()[1]

2180

2291

2181

2292

return func

2182

2293

2183

2294

def __setattr__(self, name, value):

2184

if name == '_pipe':

2295

if name == "_pipe":

2185

2296

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

2186

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

2297

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

2187

2298

2188

2299

2189

2300

class ClientHandler(socketserver.BaseRequestHandler, object):

2201

2312

2202

2313

session = gnutls.ClientSession(self.request)

2203

2314

2204

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

2315

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

2205

2316

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

2206

2317

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

2207

2318

# "+DHE-DSS"))

2209

2320

priority = self.server.gnutls_priority

2210

2321

if priority is None:

2211

2322

priority = "NORMAL"

2212

gnutls.priority_set_direct(session._c_object,

2213

priority.encode("utf-8"),

2214

None)

2323

gnutls.priority_set_direct(session,

2324

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

2215

2325

2216

2326

# Start communication using the Mandos protocol

2217

2327

# Get protocol number

2236

2346

2237

2347

approval_required = False

2238

2348

try:

2239

try:

2240

fpr = self.fingerprint(

2241

self.peer_certificate(session))

2242

except (TypeError, gnutls.Error) as error:

2243

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

2244

return

2245

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

2246

2247

try:

2248

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,

2249

2373

self.client_address)

2250

2374

except KeyError:

2251

2375

return

2328

2452

2329

2453

@staticmethod

2330

2454

def peer_certificate(session):

2331

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

2332

# If not an OpenPGP certificate...

2333

if (gnutls.certificate_type_get(session._c_object)

2334

!= 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)

2335

2469

# ...return invalid data

2336

2470

return b""

2337

2471

list_size = ctypes.c_uint(1)

2338

2472

cert_list = (gnutls.certificate_get_peers

2339

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

2473

(session, ctypes.byref(list_size)))

2340

2474

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

2341

2475

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

2342

2476

if list_size.value == 0:

2345

2479

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

2346

2480

2347

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

2348

2517

def fingerprint(openpgp):

2349

2518

"Convert an OpenPGP bytestring to a hexdigit fingerprint"

2350

2519

# New GnuTLS "datum" with the OpenPGP public key

2364

2533

ctypes.byref(crtverify))

2365

2534

if crtverify.value != 0:

2366

2535

gnutls.openpgp_crt_deinit(crt)

2367

raise gnutls.CertificateSecurityError("Verify failed")

2536

raise gnutls.CertificateSecurityError(code

2537

=crtverify.value)

2368

2538

# New buffer for the fingerprint

2369

2539

buf = ctypes.create_string_buffer(20)

2370

2540

buf_len = ctypes.c_size_t()

2380

2550

return hex_fpr

2381

2551

2382

2552

2383

class MultiprocessingMixIn(object):

2553

class MultiprocessingMixIn:

2384

2554

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

2385

2555

2386

2556

def sub_process_main(self, request, address):

2398

2568

return proc

2399

2569

2400

2570

2401

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

2571

class MultiprocessingMixInWithPipe(MultiprocessingMixIn):

2402

2572

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

2403

2573

2404

2574

def process_request(self, request, client_address):

2419

2589

2420

2590

2421

2591

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

2422

socketserver.TCPServer, object):

2423

"""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

2424

2594

2425

2595

Attributes:

2426

2596

enabled: Boolean; whether this server is activated yet

2498

2668

raise

2499

2669

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

2500

2670

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

2671

if self.server_address[1]:

2672

self.allow_reuse_address = True

2501

2673

if not self.server_address[0]:

2502

2674

if self.address_family == socket.AF_INET6:

2503

2675

any_address = "::" # in6addr_any

2556

2728

def add_pipe(self, parent_pipe, proc):

2557

2729

# Call "handle_ipc" for both data and EOF events

2558

2730

GLib.io_add_watch(

2559

parent_pipe.fileno(),

2560

GLib.IO_IN | GLib.IO_HUP,

2731

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

2732

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

2561

2733

functools.partial(self.handle_ipc,

2562

2734

parent_pipe=parent_pipe,

2563

2735

proc=proc))

2576

2748

request = parent_pipe.recv()

2577

2749

command = request[0]

2578

2750

2579

if command == 'init':

2580

fpr = request[1]

2581

address = request[2]

2751

if command == "init":

2752

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

2753

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

2754

address = request[3]

2582

2755

2583

2756

for c in self.clients.values():

2584

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:

2585

2764

client = c

2586

2765

break

2587

2766

else:

2588

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

2589

"dress: %s", fpr, address)

2767

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

2768

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

2590

2769

if self.use_dbus:

2591

2770

# Emit D-Bus signal

2592

mandos_dbus_service.ClientNotFound(fpr,

2771

mandos_dbus_service.ClientNotFound(key_id or fpr,

2593

2772

address[0])

2594

2773

parent_pipe.send(False)

2595

2774

return False

2596

2775

2597

2776

GLib.io_add_watch(

2598

parent_pipe.fileno(),

2599

GLib.IO_IN | GLib.IO_HUP,

2777

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

2778

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

2600

2779

functools.partial(self.handle_ipc,

2601

2780

parent_pipe=parent_pipe,

2602

2781

proc=proc,

2605

2784

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

2606

2785

# same fileno

2607

2786

return False

2608

if command == 'funcall':

2787

if command == "funcall":

2609

2788

funcname = request[1]

2610

2789

args = request[2]

2611

2790

kwargs = request[3]

2612

2791

2613

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

2792

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

2614

2793

funcname)(*args,

2615

2794

**kwargs)))

2616

2795

2617

if command == 'getattr':

2796

if command == "getattr":

2618

2797

attrname = request[1]

2619

2798

if isinstance(client_object.__getattribute__(attrname),

2620

collections.Callable):

2621

parent_pipe.send(('function', ))

2799

collections.abc.Callable):

2800

parent_pipe.send(("function", ))

2622

2801

else:

2623

2802

parent_pipe.send((

2624

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

2803

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

2625

2804

2626

if command == 'setattr':

2805

if command == "setattr":

2627

2806

attrname = request[1]

2628

2807

value = request[2]

2629

2808

setattr(client_object, attrname, value)

2634

2813

def rfc3339_duration_to_delta(duration):

2635

2814

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

2636

2815

2637

>>> rfc3339_duration_to_delta("P7D")

2638

datetime.timedelta(7)

2639

>>> rfc3339_duration_to_delta("PT60S")

2640

datetime.timedelta(0, 60)

2641

>>> rfc3339_duration_to_delta("PT60M")

2642

datetime.timedelta(0, 3600)

2643

>>> rfc3339_duration_to_delta("PT24H")

2644

datetime.timedelta(1)

2645

>>> rfc3339_duration_to_delta("P1W")

2646

datetime.timedelta(7)

2647

>>> rfc3339_duration_to_delta("PT5M30S")

2648

datetime.timedelta(0, 330)

2649

>>> rfc3339_duration_to_delta("P1DT3M20S")

2650

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

2651

2832

"""

2652

2833

2653

2834

# Parsing an RFC 3339 duration with regular expressions is not

2733

2914

def string_to_delta(interval):

2734

2915

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

2735

2916

2736

>>> string_to_delta('7d')

2737

datetime.timedelta(7)

2738

>>> string_to_delta('60s')

2739

datetime.timedelta(0, 60)

2740

>>> string_to_delta('60m')

2741

datetime.timedelta(0, 3600)

2742

>>> string_to_delta('24h')

2743

datetime.timedelta(1)

2744

>>> string_to_delta('1w')

2745

datetime.timedelta(7)

2746

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

2747

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

2748

2929

"""

2749

2930

2750

2931

try:

2852

3033

2853

3034

options = parser.parse_args()

2854

3035

2855

if options.check:

2856

import doctest

2857

fail_count, test_count = doctest.testmod()

2858

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

2859

2860

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")

2861

3043

server_defaults = {"interface": "",

2862

3044

"address": "",

2863

3045

"port": "",

2864

3046

"debug": "False",

2865

"priority":

2866

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

2867

":+SIGN-DSA-SHA256",

3047

"priority": priority,

2868

3048

"servicename": "Mandos",

2869

3049

"use_dbus": "True",

2870

3050

"use_ipv6": "True",

2875

3055

"foreground": "False",

2876

3056

"zeroconf": "True",

2877

3057

}

3058

del priority

2878

3059

2879

3060

# Parse config file for server-global settings

2880

server_config = configparser.SafeConfigParser(server_defaults)

3061

server_config = configparser.ConfigParser(server_defaults)

2881

3062

del server_defaults

2882

3063

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

2883

# Convert the SafeConfigParser object to a dict

3064

# Convert the ConfigParser object to a dict

2884

3065

server_settings = server_config.defaults()

2885

3066

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

2886

3067

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

2953

3134

2954

3135

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

2955

3136

syslogger.setFormatter(

2956

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

2957

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

3137

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

3138

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

2958

3139

server_settings["servicename"])))

2959

3140

2960

3141

# Parse config file with clients

2961

client_config = configparser.SafeConfigParser(Client

2962

.client_defaults)

3142

client_config = configparser.ConfigParser(Client.client_defaults)

2963

3143

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

2964

3144

"clients.conf"))

2965

3145

3021

3201

3022

3202

@gnutls.log_func

3023

3203

def debug_gnutls(level, string):

3024

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

3204

logger.debug("GnuTLS: %s",

3205

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

3206

errors="replace"))

3025

3207

3026

3208

gnutls.global_set_log_function(debug_gnutls)

3027

3209

3036

3218

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

3037

3219

daemon()

3038

3220

3039

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

3040

# to inform GLib that threads will be used.

3041

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()

3042

3225

3043

3226

global main_loop

3044

3227

# From the Avahi example code

3120

3303

if isinstance(s, bytes)

3121

3304

else s) for s in

3122

3305

value["client_structure"]]

3123

# .name & .host

3124

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

3306

# .name, .host, and .checker_command

3307

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

3125

3308

if isinstance(value[k], bytes):

3126

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"] = ""

3127

3314

# old_client_settings

3128

3315

# .keys()

3129

3316

old_client_settings = {

3133

3320

for key, value in

3134

3321

bytes_old_client_settings.items()}

3135

3322

del bytes_old_client_settings

3136

# .host

3323

# .host and .checker_command

3137

3324

for value in old_client_settings.values():

3138

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

3139

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

3140

.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"))

3141

3329

os.remove(stored_state_path)

3142

3330

except IOError as e:

3143

3331

if e.errno == errno.ENOENT:

3266

3454

pass

3267

3455

3268

3456

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

3269

def ClientNotFound(self, fingerprint, address):

3457

def ClientNotFound(self, key_id, address):

3270

3458

"D-Bus signal"

3271

3459

pass

3272

3460

3396

3584

3397

3585

try:

3398

3586

with tempfile.NamedTemporaryFile(

3399

mode='wb',

3587

mode="wb",

3400

3588

suffix=".pickle",

3401

prefix='clients-',

3589

prefix="clients-",

3402

3590

dir=os.path.dirname(stored_state_path),

3403

3591

delete=False) as stored_state:

3404

3592

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

3468

3656

sys.exit(1)

3469

3657

# End of Avahi example code

3470

3658

3471

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

3472

lambda *args, **kwargs:

3473

(tcp_server.handle_request

3474

(*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))

3475

3664

3476

3665

logger.debug("Starting main loop")

3477

3666

main_loop.run()

3487

3676

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

3488

3677

cleanup()

3489

3678

3490

3491

if __name__ == '__main__':

3492

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()