/mandos/release : revision 237.7.11

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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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# along with this program. If not, see

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

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#

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

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# Contact the authors at <mandos@fukt.bsnet.se>.

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#

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from __future__ import (division, absolute_import, print_function,

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unicode_literals)

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from __future__ import division, with_statement, absolute_import

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import SocketServer as socketserver

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import socket

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import argparse

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import optparse

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import datetime

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import errno

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import gnutls.crypto

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import functools

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import cPickle as pickle

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import multiprocessing

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import types

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import dbus

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import dbus.service

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SO_BINDTODEVICE = None

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version = "1.3.1"

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version = "1.2.3"

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#logger = logging.getLogger('mandos')

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logger = logging.Logger('mandos')

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#logger = logging.getLogger(u'mandos')

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logger = logging.Logger(u'mandos')

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syslogger = (logging.handlers.SysLogHandler

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(facility = logging.handlers.SysLogHandler.LOG_DAEMON,

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address = str("/dev/log")))

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

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u' %(message)s'))

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logger.addHandler(syslogger)

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console = logging.StreamHandler()

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console.setFormatter(logging.Formatter('%(name)s [%(process)d]:'

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' %(levelname)s:'

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' %(message)s'))

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console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'

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u' %(levelname)s:'

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u' %(message)s'))

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logger.addHandler(console)

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class AvahiError(Exception):

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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: u'Mandos'

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

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See <http://www.dns-sd.org/ServiceTypes.html>

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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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"""

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def __init__(self, interface = avahi.IF_UNSPEC, name = None,

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servicetype = None, port = None, TXT = None,

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domain = "", host = "", max_renames = 32768,

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domain = u"", host = u"", max_renames = 32768,

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protocol = avahi.PROTO_UNSPEC, bus = None):

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self.interface = interface

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self.name = name

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self.group = None # our entry group

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self.server = None

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self.bus = bus

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self.entry_group_state_changed_match = None

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def rename(self):

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

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if self.rename_count >= self.max_renames:

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

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" after %i retries, exiting.",

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

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u" after %i retries, exiting.",

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self.rename_count)

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raise AvahiServiceError("Too many renames")

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raise AvahiServiceError(u"Too many renames")

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self.name = unicode(self.server.GetAlternativeServiceName(self.name))

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

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

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self.name)

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syslogger.setFormatter(logging.Formatter

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

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

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

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u' %%(levelname)s: %%(message)s'

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% self.name))

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self.remove()

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try:

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self.add()

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except dbus.exceptions.DBusException as error:

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logger.critical("DBusException: %s", error)

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except dbus.exceptions.DBusException, error:

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logger.critical(u"DBusException: %s", error)

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self.cleanup()

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os._exit(1)

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self.rename_count += 1

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def remove(self):

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

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if self.entry_group_state_changed_match is not None:

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self.entry_group_state_changed_match.remove()

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self.entry_group_state_changed_match = None

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if self.group is not None:

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self.group.Reset()

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def add(self):

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

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self.remove()

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if self.group is None:

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self.group = dbus.Interface(

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self.bus.get_object(avahi.DBUS_NAME,

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self.server.EntryGroupNew()),

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avahi.DBUS_INTERFACE_ENTRY_GROUP)

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self.entry_group_state_changed_match = (

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self.group.connect_to_signal(

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'StateChanged', self .entry_group_state_changed))

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

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self.group.connect_to_signal('StateChanged',

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self

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.entry_group_state_changed)

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

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self.name, self.type)

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self.group.AddService(

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self.interface,

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self.group.Commit()

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def entry_group_state_changed(self, state, error):

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

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

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

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if state == avahi.ENTRY_GROUP_ESTABLISHED:

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logger.debug("Zeroconf service established.")

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logger.debug(u"Zeroconf service established.")

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elif state == avahi.ENTRY_GROUP_COLLISION:

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

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

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self.rename()

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elif state == avahi.ENTRY_GROUP_FAILURE:

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

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

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unicode(error))

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raise AvahiGroupError("State changed: %s"

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raise AvahiGroupError(u"State changed: %s"

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% unicode(error))

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def cleanup(self):

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

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if self.group is not None:

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try:

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self.group.Free()

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except (dbus.exceptions.UnknownMethodException,

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dbus.exceptions.DBusException) as e:

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pass

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self.group.Free()

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self.group = None

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self.remove()

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

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def server_state_changed(self, state):

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

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

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bad_states = { avahi.SERVER_INVALID:

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"Zeroconf server invalid",

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avahi.SERVER_REGISTERING: None,

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avahi.SERVER_COLLISION:

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"Zeroconf server name collision",

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avahi.SERVER_FAILURE:

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"Zeroconf server failure" }

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if state in bad_states:

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if bad_states[state] is not None:

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if error is None:

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logger.error(bad_states[state])

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else:

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

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self.cleanup()

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

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if state == avahi.SERVER_COLLISION:

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logger.error(u"Zeroconf server name collision")

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self.remove()

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elif state == avahi.SERVER_RUNNING:

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self.add()

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else:

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if error is None:

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

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else:

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

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def activate(self):

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

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if self.server is None:

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self.server = dbus.Interface(

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self.bus.get_object(avahi.DBUS_NAME,

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avahi.DBUS_PATH_SERVER,

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follow_name_owner_changes=True),

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avahi.DBUS_PATH_SERVER),

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avahi.DBUS_INTERFACE_SERVER)

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self.server.connect_to_signal("StateChanged",

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self.server.connect_to_signal(u"StateChanged",

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self.server_state_changed)

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self.server_state_changed(self.server.GetState())

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def _timedelta_to_milliseconds(td):

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"Convert a datetime.timedelta() to milliseconds"

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return ((td.days * 24 * 60 * 60 * 1000)

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+ (td.seconds * 1000)

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+ (td.microseconds // 1000))

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class Client(object):

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

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secret: bytestring; sent verbatim (over TLS) to client

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timeout: datetime.timedelta(); How long from last_checked_ok

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until this client is disabled

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extended_timeout: extra long timeout when password has been sent

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runtime_expansions: Allowed attributes for runtime expansion.

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expires: datetime.datetime(); time (UTC) when a client will be

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disabled, or None

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"""

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runtime_expansions = ("approval_delay", "approval_duration",

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"created", "enabled", "fingerprint",

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"host", "interval", "last_checked_ok",

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

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runtime_expansions = (u"approval_delay", u"approval_duration",

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u"created", u"enabled", u"fingerprint",

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u"host", u"interval", u"last_checked_ok",

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

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@staticmethod

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def _timedelta_to_milliseconds(td):

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"Convert a datetime.timedelta() to milliseconds"

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return ((td.days * 24 * 60 * 60 * 1000)

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+ (td.seconds * 1000)

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+ (td.microseconds // 1000))

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def timeout_milliseconds(self):

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"Return the 'timeout' attribute in milliseconds"

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return _timedelta_to_milliseconds(self.timeout)

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def extended_timeout_milliseconds(self):

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"Return the 'extended_timeout' attribute in milliseconds"

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return _timedelta_to_milliseconds(self.extended_timeout)

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return self._timedelta_to_milliseconds(self.timeout)

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def interval_milliseconds(self):

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"Return the 'interval' attribute in milliseconds"

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return _timedelta_to_milliseconds(self.interval)

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return self._timedelta_to_milliseconds(self.interval)

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def approval_delay_milliseconds(self):

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return _timedelta_to_milliseconds(self.approval_delay)

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return self._timedelta_to_milliseconds(self.approval_delay)

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def __init__(self, name = None, disable_hook=None, config=None):

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"""Note: the 'checker' key in 'config' sets the

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self.name = name

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if config is None:

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config = {}

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

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

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# Uppercase and remove spaces from fingerprint for later

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# comparison purposes with return value from the fingerprint()

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# function

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self.fingerprint = (config["fingerprint"].upper()

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.replace(" ", ""))

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

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if "secret" in config:

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self.secret = config["secret"].decode("base64")

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elif "secfile" in config:

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self.fingerprint = (config[u"fingerprint"].upper()

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.replace(u" ", u""))

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

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if u"secret" in config:

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self.secret = config[u"secret"].decode(u"base64")

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elif u"secfile" in config:

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with open(os.path.expanduser(os.path.expandvars

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(config["secfile"])),

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(config[u"secfile"])),

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"rb") as secfile:

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self.secret = secfile.read()

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else:

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raise TypeError("No secret or secfile for client %s"

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raise TypeError(u"No secret or secfile for client %s"

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% self.name)

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self.host = config.get("host", "")

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self.host = config.get(u"host", u"")

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self.created = datetime.datetime.utcnow()

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self.enabled = False

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self.last_approval_request = None

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self.last_enabled = None

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self.last_checked_ok = None

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self.timeout = string_to_delta(config["timeout"])

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self.extended_timeout = string_to_delta(config["extended_timeout"])

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self.interval = string_to_delta(config["interval"])

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self.timeout = string_to_delta(config[u"timeout"])

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self.interval = string_to_delta(config[u"interval"])

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self.disable_hook = disable_hook

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self.checker = None

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self.checker_initiator_tag = None

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self.disable_initiator_tag = None

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self.expires = None

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self.checker_callback_tag = None

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self.checker_command = config["checker"]

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self.checker_command = config[u"checker"]

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self.current_checker_command = None

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self.last_connect = None

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self._approved = None

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self.approved_by_default = config.get("approved_by_default",

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self.approved_by_default = config.get(u"approved_by_default",

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True)

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self.approvals_pending = 0

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self.approval_delay = string_to_delta(

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config["approval_delay"])

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config[u"approval_delay"])

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self.approval_duration = string_to_delta(

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config["approval_duration"])

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config[u"approval_duration"])

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self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())

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def send_changedstate(self):

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def enable(self):

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"""Start this client's checker and timeout hooks"""

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

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

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# Already enabled

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return

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self.send_changedstate()

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self.last_enabled = datetime.datetime.utcnow()

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

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# and every interval from then on.

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self.checker_initiator_tag = (gobject.timeout_add

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(self.interval_milliseconds(),

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self.start_checker))

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

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

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self.disable_initiator_tag = (gobject.timeout_add

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(self.timeout_milliseconds(),

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self.disable))

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self.enabled = True

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self.last_enabled = datetime.datetime.utcnow()

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# Also start a new checker *right now*.

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self.start_checker()

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if not quiet:

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self.send_changedstate()

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if not quiet:

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

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

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

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if getattr(self, u"disable_initiator_tag", False):

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gobject.source_remove(self.disable_initiator_tag)

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self.disable_initiator_tag = None

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self.expires = None

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

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if getattr(self, u"checker_initiator_tag", False):

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gobject.source_remove(self.checker_initiator_tag)

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self.checker_initiator_tag = None

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self.stop_checker()

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if os.WIFEXITED(condition):

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exitstatus = os.WEXITSTATUS(condition)

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if exitstatus == 0:

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

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

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vars(self))

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self.checked_ok()

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else:

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

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

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vars(self))

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else:

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

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

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vars(self))

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def checked_ok(self, timeout=None):

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def checked_ok(self):

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"""Bump up the timeout for this client.

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This should only be called when the client has been seen,

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alive and well.

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"""

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if timeout is None:

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timeout = self.timeout

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self.last_checked_ok = datetime.datetime.utcnow()

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gobject.source_remove(self.disable_initiator_tag)

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

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self.disable_initiator_tag = (gobject.timeout_add

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(_timedelta_to_milliseconds(timeout),

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(self.timeout_milliseconds(),

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self.disable))

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def need_approval(self):

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# If a checker exists, make sure it is not a zombie

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try:

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pid, status = os.waitpid(self.checker.pid, os.WNOHANG)

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except (AttributeError, OSError) as error:

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except (AttributeError, OSError), error:

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if (isinstance(error, OSError)

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and error.errno != errno.ECHILD):

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raise error

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else:

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if pid:

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logger.warning("Checker was a zombie")

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logger.warning(u"Checker was a zombie")

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gobject.source_remove(self.checker_callback_tag)

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self.checker_callback(pid, status,

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self.current_checker_command)

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# Escape attributes for the shell

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escaped_attrs = dict(

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(attr,

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re.escape(unicode(str(getattr(self, attr, "")),

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re.escape(unicode(str(getattr(self, attr, u"")),

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467

errors=

510

'replace')))

468

u'replace')))

511

469

for attr in

512

470

self.runtime_expansions)

513

471

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472

try:

515

473

command = self.checker_command % escaped_attrs

516

except TypeError as error:

517

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

518

' %s', self.checker_command, error)

474

except TypeError, error:

475

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

476

u' %s', self.checker_command, error)

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477

return True # Try again later

520

478

self.current_checker_command = command

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479

try:

522

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

480

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

523

481

command, self.name)

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

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483

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

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# always replaced by /dev/null.)

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self.checker = subprocess.Popen(command,

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close_fds=True,

530

shell=True, cwd="/")

488

shell=True, cwd=u"/")

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self.checker_callback_tag = (gobject.child_watch_add

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(self.checker.pid,

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self.checker_callback,

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if pid:

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gobject.source_remove(self.checker_callback_tag)

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self.checker_callback(pid, status, command)

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except OSError as error:

542

logger.error("Failed to start subprocess: %s",

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except OSError, error:

500

logger.error(u"Failed to start subprocess: %s",

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501

error)

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502

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

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return True

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if self.checker_callback_tag:

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gobject.source_remove(self.checker_callback_tag)

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509

self.checker_callback_tag = None

552

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

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

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return

554

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

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

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513

try:

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514

os.kill(self.checker.pid, signal.SIGTERM)

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#time.sleep(0.5)

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#if self.checker.poll() is None:

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# os.kill(self.checker.pid, signal.SIGKILL)

560

except OSError as error:

518

except OSError, error:

561

519

if error.errno != errno.ESRCH: # No such process

562

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raise

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self.checker = None

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522

565

566

def dbus_service_property(dbus_interface, signature="v",

567

access="readwrite", byte_arrays=False):

523

def dbus_service_property(dbus_interface, signature=u"v",

524

access=u"readwrite", byte_arrays=False):

568

525

"""Decorators for marking methods of a DBusObjectWithProperties to

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526

become properties on the D-Bus.

570

527

577

534

"""

578

535

# Encoding deeply encoded byte arrays is not supported yet by the

579

536

# "Set" method, so we fail early here:

580

if byte_arrays and signature != "ay":

581

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

582

" signature %r" % signature)

537

if byte_arrays and signature != u"ay":

538

raise ValueError(u"Byte arrays not supported for non-'ay'"

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u" signature %r" % signature)

583

540

def decorator(func):

584

541

func._dbus_is_property = True

585

542

func._dbus_interface = dbus_interface

586

543

func._dbus_signature = signature

587

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func._dbus_access = access

588

545

func._dbus_name = func.__name__

589

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

546

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

590

547

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

591

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

548

func._dbus_get_args_options = {u'byte_arrays': byte_arrays }

592

549

return func

593

550

return decorator

594

551

614

571

615

572

class DBusObjectWithProperties(dbus.service.Object):

616

573

"""A D-Bus object with properties.

617

574

618

575

Classes inheriting from this can use the dbus_service_property

619

576

decorator to expose methods as D-Bus properties. It exposes the

620

577

standard Get(), Set(), and GetAll() methods on the D-Bus.

622

579

623

580

@staticmethod

624

581

def _is_dbus_property(obj):

625

return getattr(obj, "_dbus_is_property", False)

582

return getattr(obj, u"_dbus_is_property", False)

626

583

627

584

def _get_all_dbus_properties(self):

628

585

"""Returns a generator of (name, attribute) pairs

629

586

"""

630

return ((prop.__get__(self)._dbus_name, prop.__get__(self))

631

for cls in self.__class__.__mro__

632

for name, prop in inspect.getmembers(cls, self._is_dbus_property))

587

return ((prop._dbus_name, prop)

588

for name, prop in

589

inspect.getmembers(self, self._is_dbus_property))

633

590

634

591

def _get_dbus_property(self, interface_name, property_name):

635

592

"""Returns a bound method if one exists which is a D-Bus

636

593

property with the specified name and interface.

637

594

"""

638

for cls in self.__class__.__mro__:

639

for name, value in inspect.getmembers(cls, self._is_dbus_property):

640

if value._dbus_name == property_name and value._dbus_interface == interface_name:

641

return value.__get__(self)

642

595

for name in (property_name,

596

property_name + u"_dbus_property"):

597

prop = getattr(self, name, None)

598

if (prop is None

599

or not self._is_dbus_property(prop)

600

or prop._dbus_name != property_name

601

or (interface_name and prop._dbus_interface

602

and interface_name != prop._dbus_interface)):

603

continue

604

return prop

643

605

# No such property

644

raise DBusPropertyNotFound(self.dbus_object_path + ":"

645

+ interface_name + "."

606

raise DBusPropertyNotFound(self.dbus_object_path + u":"

607

+ interface_name + u"."

646

608

+ property_name)

647

609

648

@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",

649

out_signature="v")

610

@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",

611

out_signature=u"v")

650

612

def Get(self, interface_name, property_name):

651

613

"""Standard D-Bus property Get() method, see D-Bus standard.

652

614

"""

653

615

prop = self._get_dbus_property(interface_name, property_name)

654

if prop._dbus_access == "write":

616

if prop._dbus_access == u"write":

655

617

raise DBusPropertyAccessException(property_name)

656

618

value = prop()

657

if not hasattr(value, "variant_level"):

619

if not hasattr(value, u"variant_level"):

658

620

return value

659

621

return type(value)(value, variant_level=value.variant_level+1)

660

622

661

@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")

623

@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")

662

624

def Set(self, interface_name, property_name, value):

663

625

"""Standard D-Bus property Set() method, see D-Bus standard.

664

626

"""

665

627

prop = self._get_dbus_property(interface_name, property_name)

666

if prop._dbus_access == "read":

628

if prop._dbus_access == u"read":

667

629

raise DBusPropertyAccessException(property_name)

668

if prop._dbus_get_args_options["byte_arrays"]:

630

if prop._dbus_get_args_options[u"byte_arrays"]:

669

631

# The byte_arrays option is not supported yet on

670

632

# signatures other than "ay".

671

if prop._dbus_signature != "ay":

633

if prop._dbus_signature != u"ay":

672

634

raise ValueError

673

635

value = dbus.ByteArray(''.join(unichr(byte)

674

636

for byte in value))

675

637

prop(value)

676

638

677

@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",

678

out_signature="a{sv}")

639

@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",

640

out_signature=u"a{sv}")

679

641

def GetAll(self, interface_name):

680

642

"""Standard D-Bus property GetAll() method, see D-Bus

681

643

standard.

682

644

683

645

Note: Will not include properties with access="write".

684

646

"""

685

647

all = {}

689

651

# Interface non-empty but did not match

690

652

continue

691

653

# Ignore write-only properties

692

if prop._dbus_access == "write":

654

if prop._dbus_access == u"write":

693

655

continue

694

656

value = prop()

695

if not hasattr(value, "variant_level"):

657

if not hasattr(value, u"variant_level"):

696

658

all[name] = value

697

659

continue

698

660

all[name] = type(value)(value, variant_level=

699

661

value.variant_level+1)

700

return dbus.Dictionary(all, signature="sv")

662

return dbus.Dictionary(all, signature=u"sv")

701

663

702

664

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

703

out_signature="s",

665

out_signature=u"s",

704

666

path_keyword='object_path',

705

667

connection_keyword='connection')

706

668

def Introspect(self, object_path, connection):

711

673

try:

712

674

document = xml.dom.minidom.parseString(xmlstring)

713

675

def make_tag(document, name, prop):

714

e = document.createElement("property")

715

e.setAttribute("name", name)

716

e.setAttribute("type", prop._dbus_signature)

717

e.setAttribute("access", prop._dbus_access)

676

e = document.createElement(u"property")

677

e.setAttribute(u"name", name)

678

e.setAttribute(u"type", prop._dbus_signature)

679

e.setAttribute(u"access", prop._dbus_access)

718

680

return e

719

for if_tag in document.getElementsByTagName("interface"):

681

for if_tag in document.getElementsByTagName(u"interface"):

720

682

for tag in (make_tag(document, name, prop)

721

683

for name, prop

722

684

in self._get_all_dbus_properties()

723

685

if prop._dbus_interface

724

== if_tag.getAttribute("name")):

686

== if_tag.getAttribute(u"name")):

725

687

if_tag.appendChild(tag)

726

688

# Add the names to the return values for the

727

689

# "org.freedesktop.DBus.Properties" methods

728

if (if_tag.getAttribute("name")

729

== "org.freedesktop.DBus.Properties"):

730

for cn in if_tag.getElementsByTagName("method"):

731

if cn.getAttribute("name") == "Get":

732

for arg in cn.getElementsByTagName("arg"):

733

if (arg.getAttribute("direction")

734

== "out"):

735

arg.setAttribute("name", "value")

736

elif cn.getAttribute("name") == "GetAll":

737

for arg in cn.getElementsByTagName("arg"):

738

if (arg.getAttribute("direction")

739

== "out"):

740

arg.setAttribute("name", "props")

741

xmlstring = document.toxml("utf-8")

690

if (if_tag.getAttribute(u"name")

691

== u"org.freedesktop.DBus.Properties"):

692

for cn in if_tag.getElementsByTagName(u"method"):

693

if cn.getAttribute(u"name") == u"Get":

694

for arg in cn.getElementsByTagName(u"arg"):

695

if (arg.getAttribute(u"direction")

696

== u"out"):

697

arg.setAttribute(u"name", u"value")

698

elif cn.getAttribute(u"name") == u"GetAll":

699

for arg in cn.getElementsByTagName(u"arg"):

700

if (arg.getAttribute(u"direction")

701

== u"out"):

702

arg.setAttribute(u"name", u"props")

703

xmlstring = document.toxml(u"utf-8")

742

704

document.unlink()

743

705

except (AttributeError, xml.dom.DOMException,

744

xml.parsers.expat.ExpatError) as error:

745

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

706

xml.parsers.expat.ExpatError), error:

707

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

746

708

error)

747

709

return xmlstring

748

710

749

711

750

def datetime_to_dbus (dt, variant_level=0):

751

"""Convert a UTC datetime.datetime() to a D-Bus type."""

752

if dt is None:

753

return dbus.String("", variant_level = variant_level)

754

return dbus.String(dt.isoformat(),

755

variant_level=variant_level)

756

757

class AlternateDBusNamesMetaclass(DBusObjectWithProperties.__metaclass__):

758

"""Applied to an empty subclass of a D-Bus object, this metaclass

759

will add additional D-Bus attributes matching a certain pattern.

760

"""

761

def __new__(mcs, name, bases, attr):

762

# Go through all the base classes which could have D-Bus

763

# methods, signals, or properties in them

764

for base in (b for b in bases

765

if issubclass(b, dbus.service.Object)):

766

# Go though all attributes of the base class

767

for attrname, attribute in inspect.getmembers(base):

768

# Ignore non-D-Bus attributes, and D-Bus attributes

769

# with the wrong interface name

770

if (not hasattr(attribute, "_dbus_interface")

771

or not attribute._dbus_interface

772

.startswith("se.recompile.Mandos")):

773

continue

774

# Create an alternate D-Bus interface name based on

775

# the current name

776

alt_interface = (attribute._dbus_interface

777

.replace("se.recompile.Mandos",

778

"se.bsnet.fukt.Mandos"))

779

# Is this a D-Bus signal?

780

if getattr(attribute, "_dbus_is_signal", False):

781

# Extract the original non-method function by

782

# black magic

783

nonmethod_func = (dict(

784

zip(attribute.func_code.co_freevars,

785

attribute.__closure__))["func"]

786

.cell_contents)

787

# Create a new, but exactly alike, function

788

# object, and decorate it to be a new D-Bus signal

789

# with the alternate D-Bus interface name

790

new_function = (dbus.service.signal

791

(alt_interface,

792

attribute._dbus_signature)

793

(types.FunctionType(

794

nonmethod_func.func_code,

795

nonmethod_func.func_globals,

796

nonmethod_func.func_name,

797

nonmethod_func.func_defaults,

798

nonmethod_func.func_closure)))

799

# Define a creator of a function to call both the

800

# old and new functions, so both the old and new

801

# signals gets sent when the function is called

802

def fixscope(func1, func2):

803

"""This function is a scope container to pass

804

func1 and func2 to the "call_both" function

805

outside of its arguments"""

806

def call_both(*args, **kwargs):

807

"""This function will emit two D-Bus

808

signals by calling func1 and func2"""

809

func1(*args, **kwargs)

810

func2(*args, **kwargs)

811

return call_both

812

# Create the "call_both" function and add it to

813

# the class

814

attr[attrname] = fixscope(attribute,

815

new_function)

816

# Is this a D-Bus method?

817

elif getattr(attribute, "_dbus_is_method", False):

818

# Create a new, but exactly alike, function

819

# object. Decorate it to be a new D-Bus method

820

# with the alternate D-Bus interface name. Add it

821

# to the class.

822

attr[attrname] = (dbus.service.method

823

(alt_interface,

824

attribute._dbus_in_signature,

825

attribute._dbus_out_signature)

826

(types.FunctionType

827

(attribute.func_code,

828

attribute.func_globals,

829

attribute.func_name,

830

attribute.func_defaults,

831

attribute.func_closure)))

832

# Is this a D-Bus property?

833

elif getattr(attribute, "_dbus_is_property", False):

834

# Create a new, but exactly alike, function

835

# object, and decorate it to be a new D-Bus

836

# property with the alternate D-Bus interface

837

# name. Add it to the class.

838

attr[attrname] = (dbus_service_property

839

(alt_interface,

840

attribute._dbus_signature,

841

attribute._dbus_access,

842

attribute

843

._dbus_get_args_options

844

["byte_arrays"])

845

(types.FunctionType

846

(attribute.func_code,

847

attribute.func_globals,

848

attribute.func_name,

849

attribute.func_defaults,

850

attribute.func_closure)))

851

return type.__new__(mcs, name, bases, attr)

852

853

712

class ClientDBus(Client, DBusObjectWithProperties):

854

713

"""A Client class using D-Bus

855

714

859

718

"""

860

719

861

720

runtime_expansions = (Client.runtime_expansions

862

+ ("dbus_object_path",))

721

+ (u"dbus_object_path",))

863

722

864

723

# dbus.service.Object doesn't use super(), so we can't either.

865

724

870

729

# Only now, when this client is initialized, can it show up on

871

730

# the D-Bus

872

731

client_object_name = unicode(self.name).translate(

873

{ord("."): ord("_"),

874

ord("-"): ord("_")})

732

{ord(u"."): ord(u"_"),

733

ord(u"-"): ord(u"_")})

875

734

self.dbus_object_path = (dbus.ObjectPath

876

("/clients/" + client_object_name))

735

(u"/clients/" + client_object_name))

877

736

DBusObjectWithProperties.__init__(self, self.bus,

878

737

self.dbus_object_path)

879

738

880

def notifychangeproperty(transform_func,

881

dbus_name, type_func=lambda x: x,

882

variant_level=1):

883

""" Modify a variable so that it's a property which announces

884

its changes to DBus.

739

def _get_approvals_pending(self):

740

return self._approvals_pending

741

def _set_approvals_pending(self, value):

742

old_value = self._approvals_pending

743

self._approvals_pending = value

744

bval = bool(value)

745

if (hasattr(self, "dbus_object_path")

746

and bval is not bool(old_value)):

747

dbus_bool = dbus.Boolean(bval, variant_level=1)

748

self.PropertyChanged(dbus.String(u"ApprovalPending"),

749

dbus_bool)

885

750

886

transform_fun: Function that takes a value and transforms it

887

to a D-Bus type.

888

dbus_name: D-Bus name of the variable

889

type_func: Function that transform the value before sending it

890

to the D-Bus. Default: no transform

891

variant_level: D-Bus variant level. Default: 1

892

"""

893

real_value = [None,]

894

def setter(self, value):

895

old_value = real_value[0]

896

real_value[0] = value

897

if hasattr(self, "dbus_object_path"):

898

if type_func(old_value) != type_func(real_value[0]):

899

dbus_value = transform_func(type_func(real_value[0]),

900

variant_level)

901

self.PropertyChanged(dbus.String(dbus_name),

902

dbus_value)

903

904

return property(lambda self: real_value[0], setter)

905

906

907

expires = notifychangeproperty(datetime_to_dbus, "Expires")

908

approvals_pending = notifychangeproperty(dbus.Boolean,

909

"ApprovalPending",

910

type_func = bool)

911

enabled = notifychangeproperty(dbus.Boolean, "Enabled")

912

last_enabled = notifychangeproperty(datetime_to_dbus,

913

"LastEnabled")

914

checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",

915

type_func = lambda checker: checker is not None)

916

last_checked_ok = notifychangeproperty(datetime_to_dbus,

917

"LastCheckedOK")

918

last_approval_request = notifychangeproperty(datetime_to_dbus,

919

"LastApprovalRequest")

920

approved_by_default = notifychangeproperty(dbus.Boolean,

921

"ApprovedByDefault")

922

approval_delay = notifychangeproperty(dbus.UInt16, "ApprovalDelay",

923

type_func = _timedelta_to_milliseconds)

924

approval_duration = notifychangeproperty(dbus.UInt16, "ApprovalDuration",

925

type_func = _timedelta_to_milliseconds)

926

host = notifychangeproperty(dbus.String, "Host")

927

timeout = notifychangeproperty(dbus.UInt16, "Timeout",

928

type_func = _timedelta_to_milliseconds)

929

extended_timeout = notifychangeproperty(dbus.UInt16, "ExtendedTimeout",

930

type_func = _timedelta_to_milliseconds)

931

interval = notifychangeproperty(dbus.UInt16, "Interval",

932

type_func = _timedelta_to_milliseconds)

933

checker_command = notifychangeproperty(dbus.String, "Checker")

934

935

del notifychangeproperty

751

approvals_pending = property(_get_approvals_pending,

752

_set_approvals_pending)

753

del _get_approvals_pending, _set_approvals_pending

754

755

@staticmethod

756

def _datetime_to_dbus(dt, variant_level=0):

757

"""Convert a UTC datetime.datetime() to a D-Bus type."""

758

return dbus.String(dt.isoformat(),

759

variant_level=variant_level)

760

761

def enable(self):

762

oldstate = getattr(self, u"enabled", False)

763

r = Client.enable(self)

764

if oldstate != self.enabled:

765

# Emit D-Bus signals

766

self.PropertyChanged(dbus.String(u"Enabled"),

767

dbus.Boolean(True, variant_level=1))

768

self.PropertyChanged(

769

dbus.String(u"LastEnabled"),

770

self._datetime_to_dbus(self.last_enabled,

771

variant_level=1))

772

return r

773

774

def disable(self, quiet = False):

775

oldstate = getattr(self, u"enabled", False)

776

r = Client.disable(self, quiet=quiet)

777

if not quiet and oldstate != self.enabled:

778

# Emit D-Bus signal

779

self.PropertyChanged(dbus.String(u"Enabled"),

780

dbus.Boolean(False, variant_level=1))

781

return r

936

782

937

783

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

938

784

try:

939

785

self.remove_from_connection()

940

786

except LookupError:

941

787

pass

942

if hasattr(DBusObjectWithProperties, "__del__"):

788

if hasattr(DBusObjectWithProperties, u"__del__"):

943

789

DBusObjectWithProperties.__del__(self, *args, **kwargs)

944

790

Client.__del__(self, *args, **kwargs)

945

791

947

793

*args, **kwargs):

948

794

self.checker_callback_tag = None

949

795

self.checker = None

796

# Emit D-Bus signal

797

self.PropertyChanged(dbus.String(u"CheckerRunning"),

798

dbus.Boolean(False, variant_level=1))

950

799

if os.WIFEXITED(condition):

951

800

exitstatus = os.WEXITSTATUS(condition)

952

801

# Emit D-Bus signal

962

811

return Client.checker_callback(self, pid, condition, command,

963

812

*args, **kwargs)

964

813

814

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

815

r = Client.checked_ok(self, *args, **kwargs)

816

# Emit D-Bus signal

817

self.PropertyChanged(

818

dbus.String(u"LastCheckedOK"),

819

(self._datetime_to_dbus(self.last_checked_ok,

820

variant_level=1)))

821

return r

822

823

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

824

r = Client.need_approval(self, *args, **kwargs)

825

# Emit D-Bus signal

826

self.PropertyChanged(

827

dbus.String(u"LastApprovalRequest"),

828

(self._datetime_to_dbus(self.last_approval_request,

829

variant_level=1)))

830

return r

831

965

832

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

966

833

old_checker = self.checker

967

834

if self.checker is not None:

974

841

and old_checker_pid != self.checker.pid):

975

842

# Emit D-Bus signal

976

843

self.CheckerStarted(self.current_checker_command)

844

self.PropertyChanged(

845

dbus.String(u"CheckerRunning"),

846

dbus.Boolean(True, variant_level=1))

977

847

return r

978

848

849

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

850

old_checker = getattr(self, u"checker", None)

851

r = Client.stop_checker(self, *args, **kwargs)

852

if (old_checker is not None

853

and getattr(self, u"checker", None) is None):

854

self.PropertyChanged(dbus.String(u"CheckerRunning"),

855

dbus.Boolean(False, variant_level=1))

856

return r

857

979

858

def _reset_approved(self):

980

859

self._approved = None

981

860

return False

983

862

def approve(self, value=True):

984

863

self.send_changedstate()

985

864

self._approved = value

986

gobject.timeout_add(_timedelta_to_milliseconds

865

gobject.timeout_add(self._timedelta_to_milliseconds

987

866

(self.approval_duration),

988

867

self._reset_approved)

989

868

990

869

991

870

## D-Bus methods, signals & properties

992

_interface = "se.recompile.Mandos.Client"

871

_interface = u"se.bsnet.fukt.Mandos.Client"

993

872

994

873

## Signals

995

874

996

875

# CheckerCompleted - signal

997

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

876

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

998

877

def CheckerCompleted(self, exitcode, waitstatus, command):

999

878

"D-Bus signal"

1000

879

pass

1001

880

1002

881

# CheckerStarted - signal

1003

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

882

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

1004

883

def CheckerStarted(self, command):

1005

884

"D-Bus signal"

1006

885

pass

1007

886

1008

887

# PropertyChanged - signal

1009

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

888

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

1010

889

def PropertyChanged(self, property, value):

1011

890

"D-Bus signal"

1012

891

pass

1021

900

pass

1022

901

1023

902

# Rejected - signal

1024

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

903

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

1025

904

def Rejected(self, reason):

1026

905

"D-Bus signal"

1027

906

pass

1028

907

1029

908

# NeedApproval - signal

1030

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

909

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

1031

910

def NeedApproval(self, timeout, default):

1032

911

"D-Bus signal"

1033

912

return self.need_approval()

1035

914

## Methods

1036

915

1037

916

# Approve - method

1038

@dbus.service.method(_interface, in_signature="b")

917

@dbus.service.method(_interface, in_signature=u"b")

1039

918

def Approve(self, value):

1040

919

self.approve(value)

1041

920

1042

921

# CheckedOK - method

1043

922

@dbus.service.method(_interface)

1044

923

def CheckedOK(self):

1045

self.checked_ok()

924

return self.checked_ok()

1046

925

1047

926

# Enable - method

1048

927

@dbus.service.method(_interface)

1070

949

## Properties

1071

950

1072

951

# ApprovalPending - property

1073

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

952

@dbus_service_property(_interface, signature=u"b", access=u"read")

1074

953

def ApprovalPending_dbus_property(self):

1075

954

return dbus.Boolean(bool(self.approvals_pending))

1076

955

1077

956

# ApprovedByDefault - property

1078

@dbus_service_property(_interface, signature="b",

1079

access="readwrite")

957

@dbus_service_property(_interface, signature=u"b",

958

access=u"readwrite")

1080

959

def ApprovedByDefault_dbus_property(self, value=None):

1081

960

if value is None: # get

1082

961

return dbus.Boolean(self.approved_by_default)

1083

962

self.approved_by_default = bool(value)

963

# Emit D-Bus signal

964

self.PropertyChanged(dbus.String(u"ApprovedByDefault"),

965

dbus.Boolean(value, variant_level=1))

1084

966

1085

967

# ApprovalDelay - property

1086

@dbus_service_property(_interface, signature="t",

1087

access="readwrite")

968

@dbus_service_property(_interface, signature=u"t",

969

access=u"readwrite")

1088

970

def ApprovalDelay_dbus_property(self, value=None):

1089

971

if value is None: # get

1090

972

return dbus.UInt64(self.approval_delay_milliseconds())

1091

973

self.approval_delay = datetime.timedelta(0, 0, 0, value)

974

# Emit D-Bus signal

975

self.PropertyChanged(dbus.String(u"ApprovalDelay"),

976

dbus.UInt64(value, variant_level=1))

1092

977

1093

978

# ApprovalDuration - property

1094

@dbus_service_property(_interface, signature="t",

1095

access="readwrite")

979

@dbus_service_property(_interface, signature=u"t",

980

access=u"readwrite")

1096

981

def ApprovalDuration_dbus_property(self, value=None):

1097

982

if value is None: # get

1098

return dbus.UInt64(_timedelta_to_milliseconds(

983

return dbus.UInt64(self._timedelta_to_milliseconds(

1099

984

self.approval_duration))

1100

985

self.approval_duration = datetime.timedelta(0, 0, 0, value)

986

# Emit D-Bus signal

987

self.PropertyChanged(dbus.String(u"ApprovalDuration"),

988

dbus.UInt64(value, variant_level=1))

1101

989

1102

990

# Name - property

1103

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

991

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

1104

992

def Name_dbus_property(self):

1105

993

return dbus.String(self.name)

1106

994

1107

995

# Fingerprint - property

1108

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

996

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

1109

997

def Fingerprint_dbus_property(self):

1110

998

return dbus.String(self.fingerprint)

1111

999

1112

1000

# Host - property

1113

@dbus_service_property(_interface, signature="s",

1114

access="readwrite")

1001

@dbus_service_property(_interface, signature=u"s",

1002

access=u"readwrite")

1115

1003

def Host_dbus_property(self, value=None):

1116

1004

if value is None: # get

1117

1005

return dbus.String(self.host)

1118

1006

self.host = value

1007

# Emit D-Bus signal

1008

self.PropertyChanged(dbus.String(u"Host"),

1009

dbus.String(value, variant_level=1))

1119

1010

1120

1011

# Created - property

1121

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

1012

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

1122

1013

def Created_dbus_property(self):

1123

return dbus.String(datetime_to_dbus(self.created))

1014

return dbus.String(self._datetime_to_dbus(self.created))

1124

1015

1125

1016

# LastEnabled - property

1126

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

1017

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

1127

1018

def LastEnabled_dbus_property(self):

1128

return datetime_to_dbus(self.last_enabled)

1019

if self.last_enabled is None:

1020

return dbus.String(u"")

1021

return dbus.String(self._datetime_to_dbus(self.last_enabled))

1129

1022

1130

1023

# Enabled - property

1131

@dbus_service_property(_interface, signature="b",

1132

access="readwrite")

1024

@dbus_service_property(_interface, signature=u"b",

1025

access=u"readwrite")

1133

1026

def Enabled_dbus_property(self, value=None):

1134

1027

if value is None: # get

1135

1028

return dbus.Boolean(self.enabled)

1139

1032

self.disable()

1140

1033

1141

1034

# LastCheckedOK - property

1142

@dbus_service_property(_interface, signature="s",

1143

access="readwrite")

1035

@dbus_service_property(_interface, signature=u"s",

1036

access=u"readwrite")

1144

1037

def LastCheckedOK_dbus_property(self, value=None):

1145

1038

if value is not None:

1146

1039

self.checked_ok()

1147

1040

return

1148

return datetime_to_dbus(self.last_checked_ok)

1149

1150

# Expires - property

1151

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

1152

def Expires_dbus_property(self):

1153

return datetime_to_dbus(self.expires)

1041

if self.last_checked_ok is None:

1042

return dbus.String(u"")

1043

return dbus.String(self._datetime_to_dbus(self

1044

.last_checked_ok))

1154

1045

1155

1046

# LastApprovalRequest - property

1156

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

1047

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

1157

1048

def LastApprovalRequest_dbus_property(self):

1158

return datetime_to_dbus(self.last_approval_request)

1049

if self.last_approval_request is None:

1050

return dbus.String(u"")

1051

return dbus.String(self.

1052

_datetime_to_dbus(self

1053

.last_approval_request))

1159

1054

1160

1055

# Timeout - property

1161

@dbus_service_property(_interface, signature="t",

1162

access="readwrite")

1056

@dbus_service_property(_interface, signature=u"t",

1057

access=u"readwrite")

1163

1058

def Timeout_dbus_property(self, value=None):

1164

1059

if value is None: # get

1165

1060

return dbus.UInt64(self.timeout_milliseconds())

1166

1061

self.timeout = datetime.timedelta(0, 0, 0, value)

1167

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

1062

# Emit D-Bus signal

1063

self.PropertyChanged(dbus.String(u"Timeout"),

1064

dbus.UInt64(value, variant_level=1))

1065

if getattr(self, u"disable_initiator_tag", None) is None:

1168

1066

return

1169

1067

# Reschedule timeout

1170

1068

gobject.source_remove(self.disable_initiator_tag)

1171

1069

self.disable_initiator_tag = None

1172

self.expires = None

1173

1070

time_to_die = (self.

1174

1071

_timedelta_to_milliseconds((self

1175

1072

.last_checked_ok

1180

1077

# The timeout has passed

1181

1078

self.disable()

1182

1079

else:

1183

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

1184

+ datetime.timedelta(milliseconds = time_to_die))

1185

1080

self.disable_initiator_tag = (gobject.timeout_add

1186

1081

(time_to_die, self.disable))

1187

1082

1188

# ExtendedTimeout - property

1189

@dbus_service_property(_interface, signature="t",

1190

access="readwrite")

1191

def ExtendedTimeout_dbus_property(self, value=None):

1192

if value is None: # get

1193

return dbus.UInt64(self.extended_timeout_milliseconds())

1194

self.extended_timeout = datetime.timedelta(0, 0, 0, value)

1195

1196

1083

# Interval - property

1197

@dbus_service_property(_interface, signature="t",

1198

access="readwrite")

1084

@dbus_service_property(_interface, signature=u"t",

1085

access=u"readwrite")

1199

1086

def Interval_dbus_property(self, value=None):

1200

1087

if value is None: # get

1201

1088

return dbus.UInt64(self.interval_milliseconds())

1202

1089

self.interval = datetime.timedelta(0, 0, 0, value)

1203

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

1090

# Emit D-Bus signal

1091

self.PropertyChanged(dbus.String(u"Interval"),

1092

dbus.UInt64(value, variant_level=1))

1093

if getattr(self, u"checker_initiator_tag", None) is None:

1204

1094

return

1205

1095

# Reschedule checker run

1206

1096

gobject.source_remove(self.checker_initiator_tag)

1207

1097

self.checker_initiator_tag = (gobject.timeout_add

1208

1098

(value, self.start_checker))

1209

1099

self.start_checker() # Start one now, too

1210

1100

1211

1101

# Checker - property

1212

@dbus_service_property(_interface, signature="s",

1213

access="readwrite")

1102

@dbus_service_property(_interface, signature=u"s",

1103

access=u"readwrite")

1214

1104

def Checker_dbus_property(self, value=None):

1215

1105

if value is None: # get

1216

1106

return dbus.String(self.checker_command)

1217

1107

self.checker_command = value

1108

# Emit D-Bus signal

1109

self.PropertyChanged(dbus.String(u"Checker"),

1110

dbus.String(self.checker_command,

1111

variant_level=1))

1218

1112

1219

1113

# CheckerRunning - property

1220

@dbus_service_property(_interface, signature="b",

1221

access="readwrite")

1114

@dbus_service_property(_interface, signature=u"b",

1115

access=u"readwrite")

1222

1116

def CheckerRunning_dbus_property(self, value=None):

1223

1117

if value is None: # get

1224

1118

return dbus.Boolean(self.checker is not None)

1228

1122

self.stop_checker()

1229

1123

1230

1124

# ObjectPath - property

1231

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

1125

@dbus_service_property(_interface, signature=u"o", access=u"read")

1232

1126

def ObjectPath_dbus_property(self):

1233

1127

return self.dbus_object_path # is already a dbus.ObjectPath

1234

1128

1235

1129

# Secret = property

1236

@dbus_service_property(_interface, signature="ay",

1237

access="write", byte_arrays=True)

1130

@dbus_service_property(_interface, signature=u"ay",

1131

access=u"write", byte_arrays=True)

1238

1132

def Secret_dbus_property(self, value):

1239

1133

self.secret = str(value)

1240

1134

1247

1141

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

1248

1142

if not self._pipe.recv():

1249

1143

raise KeyError()

1250

1144

1251

1145

def __getattribute__(self, name):

1252

1146

if(name == '_pipe'):

1253

1147

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

1260

1154

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

1261

1155

return self._pipe.recv()[1]

1262

1156

return func

1263

1157

1264

1158

def __setattr__(self, name, value):

1265

1159

if(name == '_pipe'):

1266

1160

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

1267

1161

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

1268

1162

1269

class ClientDBusTransitional(ClientDBus):

1270

__metaclass__ = AlternateDBusNamesMetaclass

1271

1163

1272

1164

class ClientHandler(socketserver.BaseRequestHandler, object):

1273

1165

"""A class to handle client connections.

1277

1169

1278

1170

def handle(self):

1279

1171

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

1280

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

1172

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

1281

1173

unicode(self.client_address))

1282

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

1174

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

1283

1175

self.server.child_pipe.fileno())

1284

1176

1285

1177

session = (gnutls.connection

1286

1178

.ClientSession(self.request,

1287

1179

gnutls.connection

1288

1180

.X509Credentials()))

1289

1181

1290

1182

# Note: gnutls.connection.X509Credentials is really a

1291

1183

# generic GnuTLS certificate credentials object so long as

1292

1184

# no X.509 keys are added to it. Therefore, we can use it

1293

1185

# here despite using OpenPGP certificates.

1294

1295

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

1296

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

1297

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

1298

# "+DHE-DSS"))

1186

1187

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

1188

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

1189

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

1190

# u"+DHE-DSS"))

1299

1191

# Use a fallback default, since this MUST be set.

1300

1192

priority = self.server.gnutls_priority

1301

1193

if priority is None:

1302

priority = "NORMAL"

1194

priority = u"NORMAL"

1303

1195

(gnutls.library.functions

1304

1196

.gnutls_priority_set_direct(session._c_object,

1305

1197

priority, None))

1306

1198

1307

1199

# Start communication using the Mandos protocol

1308

1200

# Get protocol number

1309

1201

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

1310

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

1202

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

1311

1203

try:

1312

1204

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

1313

1205

raise RuntimeError

1314

except (ValueError, IndexError, RuntimeError) as error:

1315

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

1206

except (ValueError, IndexError, RuntimeError), error:

1207

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

1316

1208

return

1317

1209

1318

1210

# Start GnuTLS connection

1319

1211

try:

1320

1212

session.handshake()

1321

except gnutls.errors.GNUTLSError as error:

1322

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

1213

except gnutls.errors.GNUTLSError, error:

1214

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

1323

1215

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

1324

1216

# established. Just abandon the request.

1325

1217

return

1326

logger.debug("Handshake succeeded")

1327

1218

logger.debug(u"Handshake succeeded")

1219

1328

1220

approval_required = False

1329

1221

try:

1330

1222

try:

1331

1223

fpr = self.fingerprint(self.peer_certificate

1332

1224

(session))

1333

except (TypeError,

1334

gnutls.errors.GNUTLSError) as error:

1335

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

1225

except (TypeError, gnutls.errors.GNUTLSError), error:

1226

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

1336

1227

return

1337

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

1338

1228

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

1229

1339

1230

try:

1340

1231

client = ProxyClient(child_pipe, fpr,

1341

1232

self.client_address)

1349

1240

1350

1241

while True:

1351

1242

if not client.enabled:

1352

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

1243

logger.warning(u"Client %s is disabled",

1353

1244

client.name)

1354

1245

if self.server.use_dbus:

1355

1246

# Emit D-Bus signal

1360

1251

#We are approved or approval is disabled

1361

1252

break

1362

1253

elif client._approved is None:

1363

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

1254

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

1364

1255

client.name)

1365

1256

if self.server.use_dbus:

1366

1257

# Emit D-Bus signal

1368

1259

client.approval_delay_milliseconds(),

1369

1260

client.approved_by_default)

1370

1261

else:

1371

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

1262

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

1372

1263

client.name)

1373

1264

if self.server.use_dbus:

1374

1265

# Emit D-Bus signal

1400

1291

while sent_size < len(client.secret):

1401

1292

try:

1402

1293

sent = session.send(client.secret[sent_size:])

1403

except gnutls.errors.GNUTLSError as error:

1294

except (gnutls.errors.GNUTLSError), error:

1404

1295

logger.warning("gnutls send failed")

1405

1296

return

1406

logger.debug("Sent: %d, remaining: %d",

1297

logger.debug(u"Sent: %d, remaining: %d",

1407

1298

sent, len(client.secret)

1408

1299

- (sent_size + sent))

1409

1300

sent_size += sent

1410

1411

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

1301

1302

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

1412

1303

# bump the timeout as if seen

1413

client.checked_ok(client.extended_timeout)

1304

client.checked_ok()

1414

1305

if self.server.use_dbus:

1415

1306

# Emit D-Bus signal

1416

1307

client.GotSecret()

1420

1311

client.approvals_pending -= 1

1421

1312

try:

1422

1313

session.bye()

1423

except gnutls.errors.GNUTLSError as error:

1314

except (gnutls.errors.GNUTLSError), error:

1424

1315

logger.warning("GnuTLS bye failed")

1425

1316

1426

1317

@staticmethod

1437

1328

.gnutls_certificate_get_peers

1438

1329

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

1439

1330

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

1440

raise gnutls.errors.GNUTLSError("error getting peer"

1441

" certificate")

1331

raise gnutls.errors.GNUTLSError(u"error getting peer"

1332

u" certificate")

1442

1333

if list_size.value == 0:

1443

1334

return None

1444

1335

cert = cert_list[0]

1470

1361

if crtverify.value != 0:

1471

1362

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1472

1363

raise (gnutls.errors.CertificateSecurityError

1473

("Verify failed"))

1364

(u"Verify failed"))

1474

1365

# New buffer for the fingerprint

1475

1366

buf = ctypes.create_string_buffer(20)

1476

1367

buf_len = ctypes.c_size_t()

1483

1374

# Convert the buffer to a Python bytestring

1484

1375

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

1485

1376

# Convert the bytestring to hexadecimal notation

1486

hex_fpr = ''.join("%02X" % ord(char) for char in fpr)

1377

hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)

1487

1378

return hex_fpr

1488

1379

1489

1380

1501

1392

multiprocessing.Process(target = self.sub_process_main,

1502

1393

args = (request, address)).start()

1503

1394

1504

1505

1395

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1506

1396

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

1507

1397

def process_request(self, request, client_address):

1510

1400

This function creates a new pipe in self.pipe

1511

1401

"""

1512

1402

parent_pipe, self.child_pipe = multiprocessing.Pipe()

1513

1403

1514

1404

super(MultiprocessingMixInWithPipe,

1515

1405

self).process_request(request, client_address)

1516

1406

self.child_pipe.close()

1517

1407

self.add_pipe(parent_pipe)

1518

1408

1519

1409

def add_pipe(self, parent_pipe):

1520

1410

"""Dummy function; override as necessary"""

1521

raise NotImplementedError

1522

1411

pass

1523

1412

1524

1413

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

1525

1414

socketserver.TCPServer, object):

1543

1432

bind to an address or port if they were not specified."""

1544

1433

if self.interface is not None:

1545

1434

if SO_BINDTODEVICE is None:

1546

logger.error("SO_BINDTODEVICE does not exist;"

1547

" cannot bind to interface %s",

1435

logger.error(u"SO_BINDTODEVICE does not exist;"

1436

u" cannot bind to interface %s",

1548

1437

self.interface)

1549

1438

else:

1550

1439

try:

1551

1440

self.socket.setsockopt(socket.SOL_SOCKET,

1552

1441

SO_BINDTODEVICE,

1553

1442

str(self.interface

1554

+ '\0'))

1555

except socket.error as error:

1443

+ u'\0'))

1444

except socket.error, error:

1556

1445

if error[0] == errno.EPERM:

1557

logger.error("No permission to"

1558

" bind to interface %s",

1446

logger.error(u"No permission to"

1447

u" bind to interface %s",

1559

1448

self.interface)

1560

1449

elif error[0] == errno.ENOPROTOOPT:

1561

logger.error("SO_BINDTODEVICE not available;"

1562

" cannot bind to interface %s",

1450

logger.error(u"SO_BINDTODEVICE not available;"

1451

u" cannot bind to interface %s",

1563

1452

self.interface)

1564

1453

else:

1565

1454

raise

1567

1456

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

1568

1457

if not self.server_address[0]:

1569

1458

if self.address_family == socket.AF_INET6:

1570

any_address = "::" # in6addr_any

1459

any_address = u"::" # in6addr_any

1571

1460

else:

1572

1461

any_address = socket.INADDR_ANY

1573

1462

self.server_address = (any_address,

1622

1511

def handle_ipc(self, source, condition, parent_pipe=None,

1623

1512

client_object=None):

1624

1513

condition_names = {

1625

gobject.IO_IN: "IN", # There is data to read.

1626

gobject.IO_OUT: "OUT", # Data can be written (without

1514

gobject.IO_IN: u"IN", # There is data to read.

1515

gobject.IO_OUT: u"OUT", # Data can be written (without

1627

1516

# blocking).

1628

gobject.IO_PRI: "PRI", # There is urgent data to read.

1629

gobject.IO_ERR: "ERR", # Error condition.

1630

gobject.IO_HUP: "HUP" # Hung up (the connection has been

1517

gobject.IO_PRI: u"PRI", # There is urgent data to read.

1518

gobject.IO_ERR: u"ERR", # Error condition.

1519

gobject.IO_HUP: u"HUP" # Hung up (the connection has been

1631

1520

# broken, usually for pipes and

1632

1521

# sockets).

1633

1522

}

1652

1541

client = c

1653

1542

break

1654

1543

else:

1655

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

1656

"dress: %s", fpr, address)

1544

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

1545

u"dress: %s", fpr, address)

1657

1546

if self.use_dbus:

1658

1547

# Emit D-Bus signal

1659

1548

mandos_dbus_service.ClientNotFound(fpr, address[0])

1674

1563

kwargs = request[3]

1675

1564

1676

1565

parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))

1677

1566

1678

1567

if command == 'getattr':

1679

1568

attrname = request[1]

1680

1569

if callable(client_object.__getattribute__(attrname)):

1686

1575

attrname = request[1]

1687

1576

value = request[2]

1688

1577

setattr(client_object, attrname, value)

1689

1578

1690

1579

return True

1691

1580

1692

1581

1693

1582

def string_to_delta(interval):

1694

1583

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

1695

1584

1696

>>> string_to_delta('7d')

1585

>>> string_to_delta(u'7d')

1697

1586

datetime.timedelta(7)

1698

>>> string_to_delta('60s')

1587

>>> string_to_delta(u'60s')

1699

1588

datetime.timedelta(0, 60)

1700

>>> string_to_delta('60m')

1589

>>> string_to_delta(u'60m')

1701

1590

datetime.timedelta(0, 3600)

1702

>>> string_to_delta('24h')

1591

>>> string_to_delta(u'24h')

1703

1592

datetime.timedelta(1)

1704

>>> string_to_delta('1w')

1593

>>> string_to_delta(u'1w')

1705

1594

datetime.timedelta(7)

1706

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

1595

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

1707

1596

datetime.timedelta(0, 330)

1708

1597

"""

1709

1598

timevalue = datetime.timedelta(0)

1711

1600

try:

1712

1601

suffix = unicode(s[-1])

1713

1602

value = int(s[:-1])

1714

if suffix == "d":

1603

if suffix == u"d":

1715

1604

delta = datetime.timedelta(value)

1716

elif suffix == "s":

1605

elif suffix == u"s":

1717

1606

delta = datetime.timedelta(0, value)

1718

elif suffix == "m":

1607

elif suffix == u"m":

1719

1608

delta = datetime.timedelta(0, 0, 0, 0, value)

1720

elif suffix == "h":

1609

elif suffix == u"h":

1721

1610

delta = datetime.timedelta(0, 0, 0, 0, 0, value)

1722

elif suffix == "w":

1611

elif suffix == u"w":

1723

1612

delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)

1724

1613

else:

1725

raise ValueError("Unknown suffix %r" % suffix)

1726

except (ValueError, IndexError) as e:

1727

raise ValueError(*(e.args))

1614

raise ValueError(u"Unknown suffix %r" % suffix)

1615

except (ValueError, IndexError), e:

1616

raise ValueError(e.message)

1728

1617

timevalue += delta

1729

1618

return timevalue

1730

1619

1736

1625

global if_nametoindex

1737

1626

try:

1738

1627

if_nametoindex = (ctypes.cdll.LoadLibrary

1739

(ctypes.util.find_library("c"))

1628

(ctypes.util.find_library(u"c"))

1740

1629

.if_nametoindex)

1741

1630

except (OSError, AttributeError):

1742

logger.warning("Doing if_nametoindex the hard way")

1631

logger.warning(u"Doing if_nametoindex the hard way")

1743

1632

def if_nametoindex(interface):

1744

1633

"Get an interface index the hard way, i.e. using fcntl()"

1745

1634

SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h

1746

1635

with contextlib.closing(socket.socket()) as s:

1747

1636

ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

1748

struct.pack(str("16s16x"),

1637

struct.pack(str(u"16s16x"),

1749

1638

interface))

1750

interface_index = struct.unpack(str("I"),

1639

interface_index = struct.unpack(str(u"I"),

1751

1640

ifreq[16:20])[0]

1752

1641

return interface_index

1753

1642

return if_nametoindex(interface)

1761

1650

sys.exit()

1762

1651

os.setsid()

1763

1652

if not nochdir:

1764

os.chdir("/")

1653

os.chdir(u"/")

1765

1654

if os.fork():

1766

1655

sys.exit()

1767

1656

if not noclose:

1769

1658

null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)

1770

1659

if not stat.S_ISCHR(os.fstat(null).st_mode):

1771

1660

raise OSError(errno.ENODEV,

1772

"%s not a character device"

1661

u"%s not a character device"

1773

1662

% os.path.devnull)

1774

1663

os.dup2(null, sys.stdin.fileno())

1775

1664

os.dup2(null, sys.stdout.fileno())

1783

1672

##################################################################

1784

1673

# Parsing of options, both command line and config file

1785

1674

1786

parser = argparse.ArgumentParser()

1787

parser.add_argument("-v", "--version", action="version",

1788

version = "%%(prog)s %s" % version,

1789

help="show version number and exit")

1790

parser.add_argument("-i", "--interface", metavar="IF",

1791

help="Bind to interface IF")

1792

parser.add_argument("-a", "--address",

1793

help="Address to listen for requests on")

1794

parser.add_argument("-p", "--port", type=int,

1795

help="Port number to receive requests on")

1796

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

1797

help="Run self-test")

1798

parser.add_argument("--debug", action="store_true",

1799

help="Debug mode; run in foreground and log"

1800

" to terminal")

1801

parser.add_argument("--debuglevel", metavar="LEVEL",

1802

help="Debug level for stdout output")

1803

parser.add_argument("--priority", help="GnuTLS"

1804

" priority string (see GnuTLS documentation)")

1805

parser.add_argument("--servicename",

1806

metavar="NAME", help="Zeroconf service name")

1807

parser.add_argument("--configdir",

1808

default="/etc/mandos", metavar="DIR",

1809

help="Directory to search for configuration"

1810

" files")

1811

parser.add_argument("--no-dbus", action="store_false",

1812

dest="use_dbus", help="Do not provide D-Bus"

1813

" system bus interface")

1814

parser.add_argument("--no-ipv6", action="store_false",

1815

dest="use_ipv6", help="Do not use IPv6")

1816

options = parser.parse_args()

1675

parser = optparse.OptionParser(version = "%%prog %s" % version)

1676

parser.add_option("-i", u"--interface", type=u"string",

1677

metavar="IF", help=u"Bind to interface IF")

1678

parser.add_option("-a", u"--address", type=u"string",

1679

help=u"Address to listen for requests on")

1680

parser.add_option("-p", u"--port", type=u"int",

1681

help=u"Port number to receive requests on")

1682

parser.add_option("--check", action=u"store_true",

1683

help=u"Run self-test")

1684

parser.add_option("--debug", action=u"store_true",

1685

help=u"Debug mode; run in foreground and log to"

1686

u" terminal")

1687

parser.add_option("--debuglevel", type=u"string", metavar="LEVEL",

1688

help=u"Debug level for stdout output")

1689

parser.add_option("--priority", type=u"string", help=u"GnuTLS"

1690

u" priority string (see GnuTLS documentation)")

1691

parser.add_option("--servicename", type=u"string",

1692

metavar=u"NAME", help=u"Zeroconf service name")

1693

parser.add_option("--configdir", type=u"string",

1694

default=u"/etc/mandos", metavar=u"DIR",

1695

help=u"Directory to search for configuration"

1696

u" files")

1697

parser.add_option("--no-dbus", action=u"store_false",

1698

dest=u"use_dbus", help=u"Do not provide D-Bus"

1699

u" system bus interface")

1700

parser.add_option("--no-ipv6", action=u"store_false",

1701

dest=u"use_ipv6", help=u"Do not use IPv6")

1702

options = parser.parse_args()[0]

1817

1703

1818

1704

if options.check:

1819

1705

import doctest

1821

1707

sys.exit()

1822

1708

1823

1709

# Default values for config file for server-global settings

1824

server_defaults = { "interface": "",

1825

"address": "",

1826

"port": "",

1827

"debug": "False",

1828

"priority":

1829

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

1830

"servicename": "Mandos",

1831

"use_dbus": "True",

1832

"use_ipv6": "True",

1833

"debuglevel": "",

1710

server_defaults = { u"interface": u"",

1711

u"address": u"",

1712

u"port": u"",

1713

u"debug": u"False",

1714

u"priority":

1715

u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",

1716

u"servicename": u"Mandos",

1717

u"use_dbus": u"True",

1718

u"use_ipv6": u"True",

1719

u"debuglevel": u"",

1834

1720

}

1835

1721

1836

1722

# Parse config file for server-global settings

1837

1723

server_config = configparser.SafeConfigParser(server_defaults)

1838

1724

del server_defaults

1839

1725

server_config.read(os.path.join(options.configdir,

1840

"mandos.conf"))

1726

u"mandos.conf"))

1841

1727

# Convert the SafeConfigParser object to a dict

1842

1728

server_settings = server_config.defaults()

1843

1729

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

1844

for option in ("debug", "use_dbus", "use_ipv6"):

1845

server_settings[option] = server_config.getboolean("DEFAULT",

1730

for option in (u"debug", u"use_dbus", u"use_ipv6"):

1731

server_settings[option] = server_config.getboolean(u"DEFAULT",

1846

1732

option)

1847

1733

if server_settings["port"]:

1848

server_settings["port"] = server_config.getint("DEFAULT",

1849

"port")

1734

server_settings["port"] = server_config.getint(u"DEFAULT",

1735

u"port")

1850

1736

del server_config

1851

1737

1852

1738

# Override the settings from the config file with command line

1853

1739

# options, if set.

1854

for option in ("interface", "address", "port", "debug",

1855

"priority", "servicename", "configdir",

1856

"use_dbus", "use_ipv6", "debuglevel"):

1740

for option in (u"interface", u"address", u"port", u"debug",

1741

u"priority", u"servicename", u"configdir",

1742

u"use_dbus", u"use_ipv6", u"debuglevel"):

1857

1743

value = getattr(options, option)

1858

1744

if value is not None:

1859

1745

server_settings[option] = value

1867

1753

##################################################################

1868

1754

1869

1755

# For convenience

1870

debug = server_settings["debug"]

1871

debuglevel = server_settings["debuglevel"]

1872

use_dbus = server_settings["use_dbus"]

1873

use_ipv6 = server_settings["use_ipv6"]

1874

1875

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

1756

debug = server_settings[u"debug"]

1757

debuglevel = server_settings[u"debuglevel"]

1758

use_dbus = server_settings[u"use_dbus"]

1759

use_ipv6 = server_settings[u"use_ipv6"]

1760

1761

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

1876

1762

syslogger.setFormatter(logging.Formatter

1877

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

1878

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

1879

% server_settings["servicename"]))

1763

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

1764

u' %%(levelname)s: %%(message)s'

1765

% server_settings[u"servicename"]))

1880

1766

1881

1767

# Parse config file with clients

1882

client_defaults = { "timeout": "5m",

1883

"extended_timeout": "15m",

1884

"interval": "2m",

1885

"checker": "fping -q -- %%(host)s",

1886

"host": "",

1887

"approval_delay": "0s",

1888

"approval_duration": "1s",

1768

client_defaults = { u"timeout": u"1h",

1769

u"interval": u"5m",

1770

u"checker": u"fping -q -- %%(host)s",

1771

u"host": u"",

1772

u"approval_delay": u"0s",

1773

u"approval_duration": u"1s",

1889

1774

}

1890

1775

client_config = configparser.SafeConfigParser(client_defaults)

1891

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

1892

"clients.conf"))

1776

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

1777

u"clients.conf"))

1893

1778

1894

1779

global mandos_dbus_service

1895

1780

mandos_dbus_service = None

1896

1781

1897

tcp_server = MandosServer((server_settings["address"],

1898

server_settings["port"]),

1782

tcp_server = MandosServer((server_settings[u"address"],

1783

server_settings[u"port"]),

1899

1784

ClientHandler,

1900

interface=(server_settings["interface"]

1785

interface=(server_settings[u"interface"]

1901

1786

or None),

1902

1787

use_ipv6=use_ipv6,

1903

1788

gnutls_priority=

1904

server_settings["priority"],

1789

server_settings[u"priority"],

1905

1790

use_dbus=use_dbus)

1906

1791

if not debug:

1907

pidfilename = "/var/run/mandos.pid"

1792

pidfilename = u"/var/run/mandos.pid"

1908

1793

try:

1909

pidfile = open(pidfilename, "w")

1794

pidfile = open(pidfilename, u"w")

1910

1795

except IOError:

1911

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

1796

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

1912

1797

1913

1798

try:

1914

uid = pwd.getpwnam("_mandos").pw_uid

1915

gid = pwd.getpwnam("_mandos").pw_gid

1799

uid = pwd.getpwnam(u"_mandos").pw_uid

1800

gid = pwd.getpwnam(u"_mandos").pw_gid

1916

1801

except KeyError:

1917

1802

try:

1918

uid = pwd.getpwnam("mandos").pw_uid

1919

gid = pwd.getpwnam("mandos").pw_gid

1803

uid = pwd.getpwnam(u"mandos").pw_uid

1804

gid = pwd.getpwnam(u"mandos").pw_gid

1920

1805

except KeyError:

1921

1806

try:

1922

uid = pwd.getpwnam("nobody").pw_uid

1923

gid = pwd.getpwnam("nobody").pw_gid

1807

uid = pwd.getpwnam(u"nobody").pw_uid

1808

gid = pwd.getpwnam(u"nobody").pw_gid

1924

1809

except KeyError:

1925

1810

uid = 65534

1926

1811

gid = 65534

1927

1812

try:

1928

1813

os.setgid(gid)

1929

1814

os.setuid(uid)

1930

except OSError as error:

1815

except OSError, error:

1931

1816

if error[0] != errno.EPERM:

1932

1817

raise error

1933

1818

1938

1823

level = getattr(logging, debuglevel.upper())

1939

1824

syslogger.setLevel(level)

1940

1825

console.setLevel(level)

1941

1826

1942

1827

if debug:

1943

1828

# Enable all possible GnuTLS debugging

1944

1829

1948

1833

1949

1834

@gnutls.library.types.gnutls_log_func

1950

1835

def debug_gnutls(level, string):

1951

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

1836

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

1952

1837

1953

1838

(gnutls.library.functions

1954

1839

.gnutls_global_set_log_function(debug_gnutls))

1975

1860

# End of Avahi example code

1976

1861

if use_dbus:

1977

1862

try:

1978

bus_name = dbus.service.BusName("se.recompile.Mandos",

1863

bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",

1979

1864

bus, do_not_queue=True)

1980

old_bus_name = dbus.service.BusName("se.bsnet.fukt.Mandos",

1981

bus, do_not_queue=True)

1982

except dbus.exceptions.NameExistsException as e:

1983

logger.error(unicode(e) + ", disabling D-Bus")

1865

except dbus.exceptions.NameExistsException, e:

1866

logger.error(unicode(e) + u", disabling D-Bus")

1984

1867

use_dbus = False

1985

server_settings["use_dbus"] = False

1868

server_settings[u"use_dbus"] = False

1986

1869

tcp_server.use_dbus = False

1987

1870

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

1988

service = AvahiService(name = server_settings["servicename"],

1989

servicetype = "_mandos._tcp",

1871

service = AvahiService(name = server_settings[u"servicename"],

1872

servicetype = u"_mandos._tcp",

1990

1873

protocol = protocol, bus = bus)

1991

1874

if server_settings["interface"]:

1992

1875

service.interface = (if_nametoindex

1993

(str(server_settings["interface"])))

1876

(str(server_settings[u"interface"])))

1994

1877

1995

1878

global multiprocessing_manager

1996

1879

multiprocessing_manager = multiprocessing.Manager()

1997

1880

1998

1881

client_class = Client

1999

1882

if use_dbus:

2000

client_class = functools.partial(ClientDBusTransitional, bus = bus)

1883

client_class = functools.partial(ClientDBus, bus = bus)

2001

1884

def client_config_items(config, section):

2002

1885

special_settings = {

2003

1886

"approved_by_default":

2016

1899

client_config, section)))

2017

1900

for section in client_config.sections()))

2018

1901

if not tcp_server.clients:

2019

logger.warning("No clients defined")

1902

logger.warning(u"No clients defined")

2020

1903

2021

1904

if not debug:

2022

1905

try:

2023

1906

with pidfile:

2024

1907

pid = os.getpid()

2025

pidfile.write(str(pid) + "\n".encode("utf-8"))

1908

pidfile.write(str(pid) + "\n")

2026

1909

del pidfile

2027

1910

except IOError:

2028

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

1911

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

2029

1912

pidfilename, pid)

2030

1913

except NameError:

2031

1914

# "pidfile" was never created

2033

1916

del pidfilename

2034

1917

2035

1918

signal.signal(signal.SIGINT, signal.SIG_IGN)

2036

1919

2037

1920

signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())

2038

1921

signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())

2039

1922

2041

1924

class MandosDBusService(dbus.service.Object):

2042

1925

"""A D-Bus proxy object"""

2043

1926

def __init__(self):

2044

dbus.service.Object.__init__(self, bus, "/")

2045

_interface = "se.recompile.Mandos"

1927

dbus.service.Object.__init__(self, bus, u"/")

1928

_interface = u"se.bsnet.fukt.Mandos"

2046

1929

2047

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

1930

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

2048

1931

def ClientAdded(self, objpath):

2049

1932

"D-Bus signal"

2050

1933

pass

2051

1934

2052

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

1935

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

2053

1936

def ClientNotFound(self, fingerprint, address):

2054

1937

"D-Bus signal"

2055

1938

pass

2056

1939

2057

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

1940

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

2058

1941

def ClientRemoved(self, objpath, name):

2059

1942

"D-Bus signal"

2060

1943

pass

2061

1944

2062

@dbus.service.method(_interface, out_signature="ao")

1945

@dbus.service.method(_interface, out_signature=u"ao")

2063

1946

def GetAllClients(self):

2064

1947

"D-Bus method"

2065

1948

return dbus.Array(c.dbus_object_path

2066

1949

for c in tcp_server.clients)

2067

1950

2068

1951

@dbus.service.method(_interface,

2069

out_signature="a{oa{sv}}")

1952

out_signature=u"a{oa{sv}}")

2070

1953

def GetAllClientsWithProperties(self):

2071

1954

"D-Bus method"

2072

1955

return dbus.Dictionary(

2073

((c.dbus_object_path, c.GetAll(""))

1956

((c.dbus_object_path, c.GetAll(u""))

2074

1957

for c in tcp_server.clients),

2075

signature="oa{sv}")

1958

signature=u"oa{sv}")

2076

1959

2077

@dbus.service.method(_interface, in_signature="o")

1960

@dbus.service.method(_interface, in_signature=u"o")

2078

1961

def RemoveClient(self, object_path):

2079

1962

"D-Bus method"

2080

1963

for c in tcp_server.clients:

2090

1973

2091

1974

del _interface

2092

1975

2093

class MandosDBusServiceTransitional(MandosDBusService):

2094

__metaclass__ = AlternateDBusNamesMetaclass

2095

mandos_dbus_service = MandosDBusServiceTransitional()

1976

mandos_dbus_service = MandosDBusService()

2096

1977

2097

1978

def cleanup():

2098

1979

"Cleanup function; run on exit"

2124

2005

# Find out what port we got

2125

2006

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

2126

2007

if use_ipv6:

2127

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

2008

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

2128

2009

" flowinfo %d, scope_id %d"

2129

2010

% tcp_server.socket.getsockname())

2130

2011

else: # IPv4

2131

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

2012

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

2132

2013

% tcp_server.socket.getsockname())

2133

2014

2134

2015

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

2137

2018

# From the Avahi example code

2138

2019

try:

2139

2020

service.activate()

2140

except dbus.exceptions.DBusException as error:

2141

logger.critical("DBusException: %s", error)

2021

except dbus.exceptions.DBusException, error:

2022

logger.critical(u"DBusException: %s", error)

2142

2023

cleanup()

2143

2024

sys.exit(1)

2144

2025

# End of Avahi example code

2148

2029

(tcp_server.handle_request

2149

2030

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

2150

2031

2151

logger.debug("Starting main loop")

2032

logger.debug(u"Starting main loop")

2152

2033

main_loop.run()

2153

except AvahiError as error:

2154

logger.critical("AvahiError: %s", error)

2034

except AvahiError, error:

2035

logger.critical(u"AvahiError: %s", error)

2155

2036

cleanup()

2156

2037

sys.exit(1)

2157

2038

except KeyboardInterrupt:

2158

2039

if debug:

2159

print("", file=sys.stderr)

2160

logger.debug("Server received KeyboardInterrupt")

2161

logger.debug("Server exiting")

2040

print >> sys.stderr

2041

logger.debug(u"Server received KeyboardInterrupt")

2042

logger.debug(u"Server exiting")

2162

2043

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

2163

2044

cleanup()

2164

2045

2165

2166

2046

if __name__ == '__main__':

2167

2047

main()