/mandos/trunk : revision 423

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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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# 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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SO_BINDTODEVICE = None

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version = "1.3.1"

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version = "1.0.14"

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

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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.warning(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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Attributes:

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

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

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

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D-Bus identifiers

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

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uniquely identify the client

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

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host: string; available for use by the checker command

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created: datetime.datetime(); (UTC) object creation

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last_enabled: datetime.datetime(); (UTC)

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enabled: bool()

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

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

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disable_hook: If set, called by disable() as disable_hook(self)

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

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to see if the client lives.

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'None' if no process is running.

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checker_callback_tag: a gobject event source tag, or None

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checker_command: string; External command which is run to check

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if client lives. %() expansions are done at

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checker_initiator_tag: a gobject event source tag, or None

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disable_initiator_tag: - '' -

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checker_callback_tag: - '' -

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checker_command: string; External command which is run to check if

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client lives. %() expansions are done at

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runtime with vars(self) as dict, so that for

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instance %(name)s can be used in the command.

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checker_initiator_tag: a gobject event source tag, or None

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created: datetime.datetime(); (UTC) object creation

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current_checker_command: string; current running checker_command

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disable_hook: If set, called by disable() as disable_hook(self)

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disable_initiator_tag: a gobject event source tag, or None

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enabled: bool()

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

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uniquely identify the client

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host: string; available for use by the checker command

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

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

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

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last_enabled: datetime.datetime(); (UTC)

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D-Bus identifiers

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

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

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

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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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@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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"""

459

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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self.last_approval_request = datetime.datetime.utcnow()

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def start_checker(self):

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

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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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command = self.checker_command % self.host

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except TypeError:

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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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errors=

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'replace')))

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for attr in

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self.runtime_expansions)

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escaped_attrs = dict((key,

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re.escape(unicode(str(val),

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errors=

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u'replace')))

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for key, val in

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vars(self).iteritems())

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try:

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command = self.checker_command % escaped_attrs

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except TypeError as error:

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

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' %s', self.checker_command, error)

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except TypeError, error:

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

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

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return True # Try again later

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self.current_checker_command = command

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try:

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

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

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command, self.name)

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

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# 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,

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shell=True, cwd="/")

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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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478

self.checker_callback,

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483

if pid:

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484

gobject.source_remove(self.checker_callback_tag)

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485

self.checker_callback(pid, status, command)

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except OSError as error:

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

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except OSError, error:

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

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error)

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# 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:

549

495

gobject.source_remove(self.checker_callback_tag)

550

496

self.checker_callback_tag = None

551

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

497

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

552

498

return

553

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

499

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

554

500

try:

555

501

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

556

502

#time.sleep(0.5)

557

503

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

558

504

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

559

except OSError as error:

505

except OSError, error:

560

506

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

561

507

raise

562

508

self.checker = None

563

509

564

def dbus_service_property(dbus_interface, signature="v",

565

access="readwrite", byte_arrays=False):

510

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

511

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

566

512

"""Decorators for marking methods of a DBusObjectWithProperties to

567

513

become properties on the D-Bus.

568

514

575

521

"""

576

522

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

577

523

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

578

if byte_arrays and signature != "ay":

579

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

580

" signature %r" % signature)

524

if byte_arrays and signature != u"ay":

525

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

526

u" signature %r" % signature)

581

527

def decorator(func):

582

528

func._dbus_is_property = True

583

529

func._dbus_interface = dbus_interface

584

530

func._dbus_signature = signature

585

531

func._dbus_access = access

586

532

func._dbus_name = func.__name__

587

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

533

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

588

534

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

589

func._dbus_get_args_options = {'byte_arrays': byte_arrays }

535

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

590

536

return func

591

537

return decorator

592

538

620

566

621

567

@staticmethod

622

568

def _is_dbus_property(obj):

623

return getattr(obj, "_dbus_is_property", False)

569

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

624

570

625

571

def _get_all_dbus_properties(self):

626

572

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

634

580

property with the specified name and interface.

635

581

"""

636

582

for name in (property_name,

637

property_name + "_dbus_property"):

583

property_name + u"_dbus_property"):

638

584

prop = getattr(self, name, None)

639

585

if (prop is None

640

586

or not self._is_dbus_property(prop)

644

590

continue

645

591

return prop

646

592

# No such property

647

raise DBusPropertyNotFound(self.dbus_object_path + ":"

648

+ interface_name + "."

593

raise DBusPropertyNotFound(self.dbus_object_path + u":"

594

+ interface_name + u"."

649

595

+ property_name)

650

596

651

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

652

out_signature="v")

597

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

598

out_signature=u"v")

653

599

def Get(self, interface_name, property_name):

654

600

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

655

601

"""

656

602

prop = self._get_dbus_property(interface_name, property_name)

657

if prop._dbus_access == "write":

603

if prop._dbus_access == u"write":

658

604

raise DBusPropertyAccessException(property_name)

659

605

value = prop()

660

if not hasattr(value, "variant_level"):

606

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

661

607

return value

662

608

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

663

609

664

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

610

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

665

611

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

666

612

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

667

613

"""

668

614

prop = self._get_dbus_property(interface_name, property_name)

669

if prop._dbus_access == "read":

615

if prop._dbus_access == u"read":

670

616

raise DBusPropertyAccessException(property_name)

671

if prop._dbus_get_args_options["byte_arrays"]:

617

if prop._dbus_get_args_options[u"byte_arrays"]:

672

618

# The byte_arrays option is not supported yet on

673

619

# signatures other than "ay".

674

if prop._dbus_signature != "ay":

620

if prop._dbus_signature != u"ay":

675

621

raise ValueError

676

622

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

677

623

for byte in value))

678

624

prop(value)

679

625

680

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

681

out_signature="a{sv}")

626

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

627

out_signature=u"a{sv}")

682

628

def GetAll(self, interface_name):

683

629

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

684

630

standard.

692

638

# Interface non-empty but did not match

693

639

continue

694

640

# Ignore write-only properties

695

if prop._dbus_access == "write":

641

if prop._dbus_access == u"write":

696

642

continue

697

643

value = prop()

698

if not hasattr(value, "variant_level"):

644

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

699

645

all[name] = value

700

646

continue

701

647

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

702

648

value.variant_level+1)

703

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

649

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

704

650

705

651

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

706

out_signature="s",

652

out_signature=u"s",

707

653

path_keyword='object_path',

708

654

connection_keyword='connection')

709

655

def Introspect(self, object_path, connection):

714

660

try:

715

661

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

716

662

def make_tag(document, name, prop):

717

e = document.createElement("property")

718

e.setAttribute("name", name)

719

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

720

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

663

e = document.createElement(u"property")

664

e.setAttribute(u"name", name)

665

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

666

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

721

667

return e

722

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

668

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

723

669

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

724

670

for name, prop

725

671

in self._get_all_dbus_properties()

726

672

if prop._dbus_interface

727

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

673

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

728

674

if_tag.appendChild(tag)

729

675

# Add the names to the return values for the

730

676

# "org.freedesktop.DBus.Properties" methods

731

if (if_tag.getAttribute("name")

732

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

733

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

734

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

735

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

736

if (arg.getAttribute("direction")

737

== "out"):

738

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

739

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

740

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

741

if (arg.getAttribute("direction")

742

== "out"):

743

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

744

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

677

if (if_tag.getAttribute(u"name")

678

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

679

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

680

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

681

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

682

if (arg.getAttribute(u"direction")

683

== u"out"):

684

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

685

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

686

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

687

if (arg.getAttribute(u"direction")

688

== u"out"):

689

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

690

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

745

691

document.unlink()

746

692

except (AttributeError, xml.dom.DOMException,

747

xml.parsers.expat.ExpatError) as error:

748

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

693

xml.parsers.expat.ExpatError), error:

694

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

749

695

error)

750

696

return xmlstring

751

697

752

698

753

def datetime_to_dbus (dt, variant_level=0):

754

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

755

if dt is None:

756

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

757

return dbus.String(dt.isoformat(),

758

variant_level=variant_level)

759

760

699

class ClientDBus(Client, DBusObjectWithProperties):

761

700

"""A Client class using D-Bus

762

701

764

703

dbus_object_path: dbus.ObjectPath

765

704

bus: dbus.SystemBus()

766

705

"""

767

768

runtime_expansions = (Client.runtime_expansions

769

+ ("dbus_object_path",))

770

771

706

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

772

707

773

708

def __init__(self, bus = None, *args, **kwargs):

776

711

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

777

712

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

778

713

# the D-Bus

779

client_object_name = unicode(self.name).translate(

780

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

781

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

782

714

self.dbus_object_path = (dbus.ObjectPath

783

("/clients/" + client_object_name))

715

(u"/clients/"

716

+ self.name.replace(u".", u"_")))

784

717

DBusObjectWithProperties.__init__(self, self.bus,

785

718

self.dbus_object_path)

786

719

787

def notifychangeproperty(transform_func,

788

dbus_name, type_func=lambda x: x,

789

variant_level=1):

790

""" Modify a variable so that its a property that announce its

791

changes to DBus.

792

transform_fun: Function that takes a value and transform it to

793

DBus type.

794

dbus_name: DBus name of the variable

795

type_func: Function that transform the value before sending it

796

to DBus

797

variant_level: DBus variant level. default: 1

798

"""

799

real_value = [None,]

800

def setter(self, value):

801

old_value = real_value[0]

802

real_value[0] = value

803

if hasattr(self, "dbus_object_path"):

804

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

805

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

806

variant_level)

807

self.PropertyChanged(dbus.String(dbus_name),

808

dbus_value)

809

810

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

811

812

813

expires = notifychangeproperty(datetime_to_dbus, "Expires")

814

approvals_pending = notifychangeproperty(dbus.Boolean,

815

"ApprovalPending",

816

type_func = bool)

817

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

818

last_enabled = notifychangeproperty(datetime_to_dbus,

819

"LastEnabled")

820

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

821

type_func = lambda checker: checker is not None)

822

last_checked_ok = notifychangeproperty(datetime_to_dbus,

823

"LastCheckedOK")

824

last_approval_request = notifychangeproperty(datetime_to_dbus,

825

"LastApprovalRequest")

826

approved_by_default = notifychangeproperty(dbus.Boolean,

827

"ApprovedByDefault")

828

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

829

type_func = _timedelta_to_milliseconds)

830

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

831

type_func = _timedelta_to_milliseconds)

832

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

833

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

834

type_func = _timedelta_to_milliseconds)

835

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

836

type_func = _timedelta_to_milliseconds)

837

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

838

type_func = _timedelta_to_milliseconds)

839

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

840

841

del notifychangeproperty

720

def _get_approvals_pending(self):

721

return self._approvals_pending

722

def _set_approvals_pending(self, value):

723

old_value = self._approvals_pending

724

self._approvals_pending = value

725

bval = bool(value)

726

if (hasattr(self, "dbus_object_path")

727

and bval is not bool(old_value)):

728

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

729

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

730

dbus_bool)

731

732

approvals_pending = property(_get_approvals_pending,

733

_set_approvals_pending)

734

del _get_approvals_pending, _set_approvals_pending

735

736

@staticmethod

737

def _datetime_to_dbus(dt, variant_level=0):

738

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

739

return dbus.String(dt.isoformat(),

740

variant_level=variant_level)

741

742

def enable(self):

743

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

744

r = Client.enable(self)

745

if oldstate != self.enabled:

746

# Emit D-Bus signals

747

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

748

dbus.Boolean(True, variant_level=1))

749

self.PropertyChanged(

750

dbus.String(u"LastEnabled"),

751

self._datetime_to_dbus(self.last_enabled,

752

variant_level=1))

753

return r

754

755

def disable(self, quiet = False):

756

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

757

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

758

if not quiet and oldstate != self.enabled:

759

# Emit D-Bus signal

760

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

761

dbus.Boolean(False, variant_level=1))

762

return r

842

763

843

764

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

844

765

try:

845

766

self.remove_from_connection()

846

767

except LookupError:

847

768

pass

848

if hasattr(DBusObjectWithProperties, "__del__"):

769

if hasattr(DBusObjectWithProperties, u"__del__"):

849

770

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

850

771

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

851

772

853

774

*args, **kwargs):

854

775

self.checker_callback_tag = None

855

776

self.checker = None

777

# Emit D-Bus signal

778

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

779

dbus.Boolean(False, variant_level=1))

856

780

if os.WIFEXITED(condition):

857

781

exitstatus = os.WEXITSTATUS(condition)

858

782

# Emit D-Bus signal

867

791

868

792

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

869

793

*args, **kwargs)

870

794

795

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

796

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

797

# Emit D-Bus signal

798

self.PropertyChanged(

799

dbus.String(u"LastCheckedOK"),

800

(self._datetime_to_dbus(self.last_checked_ok,

801

variant_level=1)))

802

return r

803

871

804

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

872

805

old_checker = self.checker

873

806

if self.checker is not None:

880

813

and old_checker_pid != self.checker.pid):

881

814

# Emit D-Bus signal

882

815

self.CheckerStarted(self.current_checker_command)

816

self.PropertyChanged(

817

dbus.String(u"CheckerRunning"),

818

dbus.Boolean(True, variant_level=1))

883

819

return r

884

820

821

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

822

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

823

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

824

if (old_checker is not None

825

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

826

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

827

dbus.Boolean(False, variant_level=1))

828

return r

829

885

830

def _reset_approved(self):

886

831

self._approved = None

887

832

return False

889

834

def approve(self, value=True):

890

835

self.send_changedstate()

891

836

self._approved = value

892

gobject.timeout_add(_timedelta_to_milliseconds

837

gobject.timeout_add(self._timedelta_to_milliseconds

893

838

(self.approval_duration),

894

839

self._reset_approved)

895

840

896

841

897

842

## D-Bus methods, signals & properties

898

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

843

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

899

844

900

845

## Signals

901

846

902

847

# CheckerCompleted - signal

903

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

848

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

904

849

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

905

850

"D-Bus signal"

906

851

pass

907

852

908

853

# CheckerStarted - signal

909

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

854

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

910

855

def CheckerStarted(self, command):

911

856

"D-Bus signal"

912

857

pass

913

858

914

859

# PropertyChanged - signal

915

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

860

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

916

861

def PropertyChanged(self, property, value):

917

862

"D-Bus signal"

918

863

pass

927

872

pass

928

873

929

874

# Rejected - signal

930

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

875

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

931

876

def Rejected(self, reason):

932

877

"D-Bus signal"

933

878

pass

934

879

935

880

# NeedApproval - signal

936

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

881

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

937

882

def NeedApproval(self, timeout, default):

938

883

"D-Bus signal"

939

return self.need_approval()

884

pass

940

885

941

886

## Methods

942

887

943

888

# Approve - method

944

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

889

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

945

890

def Approve(self, value):

946

891

self.approve(value)

947

892

948

893

# CheckedOK - method

949

894

@dbus.service.method(_interface)

950

895

def CheckedOK(self):

951

self.checked_ok()

896

return self.checked_ok()

952

897

953

898

# Enable - method

954

899

@dbus.service.method(_interface)

976

921

## Properties

977

922

978

923

# ApprovalPending - property

979

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

924

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

980

925

def ApprovalPending_dbus_property(self):

981

926

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

982

927

983

928

# ApprovedByDefault - property

984

@dbus_service_property(_interface, signature="b",

985

access="readwrite")

929

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

930

access=u"readwrite")

986

931

def ApprovedByDefault_dbus_property(self, value=None):

987

932

if value is None: # get

988

933

return dbus.Boolean(self.approved_by_default)

989

934

self.approved_by_default = bool(value)

935

# Emit D-Bus signal

936

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

937

dbus.Boolean(value, variant_level=1))

990

938

991

939

# ApprovalDelay - property

992

@dbus_service_property(_interface, signature="t",

993

access="readwrite")

940

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

941

access=u"readwrite")

994

942

def ApprovalDelay_dbus_property(self, value=None):

995

943

if value is None: # get

996

944

return dbus.UInt64(self.approval_delay_milliseconds())

997

945

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

946

# Emit D-Bus signal

947

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

948

dbus.UInt64(value, variant_level=1))

998

949

999

950

# ApprovalDuration - property

1000

@dbus_service_property(_interface, signature="t",

1001

access="readwrite")

951

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

952

access=u"readwrite")

1002

953

def ApprovalDuration_dbus_property(self, value=None):

1003

954

if value is None: # get

1004

return dbus.UInt64(_timedelta_to_milliseconds(

955

return dbus.UInt64(self._timedelta_to_milliseconds(

1005

956

self.approval_duration))

1006

957

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

958

# Emit D-Bus signal

959

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

960

dbus.UInt64(value, variant_level=1))

1007

961

1008

962

# Name - property

1009

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

963

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

1010

964

def Name_dbus_property(self):

1011

965

return dbus.String(self.name)

1012

966

1013

967

# Fingerprint - property

1014

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

968

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

1015

969

def Fingerprint_dbus_property(self):

1016

970

return dbus.String(self.fingerprint)

1017

971

1018

972

# Host - property

1019

@dbus_service_property(_interface, signature="s",

1020

access="readwrite")

973

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

974

access=u"readwrite")

1021

975

def Host_dbus_property(self, value=None):

1022

976

if value is None: # get

1023

977

return dbus.String(self.host)

1024

978

self.host = value

979

# Emit D-Bus signal

980

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

981

dbus.String(value, variant_level=1))

1025

982

1026

983

# Created - property

1027

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

984

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

1028

985

def Created_dbus_property(self):

1029

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

986

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

1030

987

1031

988

# LastEnabled - property

1032

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

989

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

1033

990

def LastEnabled_dbus_property(self):

1034

return datetime_to_dbus(self.last_enabled)

991

if self.last_enabled is None:

992

return dbus.String(u"")

993

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

1035

994

1036

995

# Enabled - property

1037

@dbus_service_property(_interface, signature="b",

1038

access="readwrite")

996

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

997

access=u"readwrite")

1039

998

def Enabled_dbus_property(self, value=None):

1040

999

if value is None: # get

1041

1000

return dbus.Boolean(self.enabled)

1045

1004

self.disable()

1046

1005

1047

1006

# LastCheckedOK - property

1048

@dbus_service_property(_interface, signature="s",

1049

access="readwrite")

1007

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

1008

access=u"readwrite")

1050

1009

def LastCheckedOK_dbus_property(self, value=None):

1051

1010

if value is not None:

1052

1011

self.checked_ok()

1053

1012

return

1054

return datetime_to_dbus(self.last_checked_ok)

1055

1056

# Expires - property

1057

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

1058

def Expires_dbus_property(self):

1059

return datetime_to_dbus(self.expires)

1060

1061

# LastApprovalRequest - property

1062

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

1063

def LastApprovalRequest_dbus_property(self):

1064

return datetime_to_dbus(self.last_approval_request)

1013

if self.last_checked_ok is None:

1014

return dbus.String(u"")

1015

return dbus.String(self._datetime_to_dbus(self

1016

.last_checked_ok))

1065

1017

1066

1018

# Timeout - property

1067

@dbus_service_property(_interface, signature="t",

1068

access="readwrite")

1019

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

1020

access=u"readwrite")

1069

1021

def Timeout_dbus_property(self, value=None):

1070

1022

if value is None: # get

1071

1023

return dbus.UInt64(self.timeout_milliseconds())

1072

1024

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

1073

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

1025

# Emit D-Bus signal

1026

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

1027

dbus.UInt64(value, variant_level=1))

1028

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

1074

1029

return

1075

1030

# Reschedule timeout

1076

1031

gobject.source_remove(self.disable_initiator_tag)

1077

1032

self.disable_initiator_tag = None

1078

self.expires = None

1079

1033

time_to_die = (self.

1080

1034

_timedelta_to_milliseconds((self

1081

1035

.last_checked_ok

1086

1040

# The timeout has passed

1087

1041

self.disable()

1088

1042

else:

1089

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

1090

+ datetime.timedelta(milliseconds = time_to_die))

1091

1043

self.disable_initiator_tag = (gobject.timeout_add

1092

1044

(time_to_die, self.disable))

1093

1094

# ExtendedTimeout - property

1095

@dbus_service_property(_interface, signature="t",

1096

access="readwrite")

1097

def ExtendedTimeout_dbus_property(self, value=None):

1098

if value is None: # get

1099

return dbus.UInt64(self.extended_timeout_milliseconds())

1100

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

1101

1045

1102

1046

# Interval - property

1103

@dbus_service_property(_interface, signature="t",

1104

access="readwrite")

1047

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

1048

access=u"readwrite")

1105

1049

def Interval_dbus_property(self, value=None):

1106

1050

if value is None: # get

1107

1051

return dbus.UInt64(self.interval_milliseconds())

1108

1052

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

1109

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

1053

# Emit D-Bus signal

1054

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

1055

dbus.UInt64(value, variant_level=1))

1056

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

1110

1057

return

1111

1058

# Reschedule checker run

1112

1059

gobject.source_remove(self.checker_initiator_tag)

1115

1062

self.start_checker() # Start one now, too

1116

1063

1117

1064

# Checker - property

1118

@dbus_service_property(_interface, signature="s",

1119

access="readwrite")

1065

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

1066

access=u"readwrite")

1120

1067

def Checker_dbus_property(self, value=None):

1121

1068

if value is None: # get

1122

1069

return dbus.String(self.checker_command)

1123

1070

self.checker_command = value

1071

# Emit D-Bus signal

1072

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

1073

dbus.String(self.checker_command,

1074

variant_level=1))

1124

1075

1125

1076

# CheckerRunning - property

1126

@dbus_service_property(_interface, signature="b",

1127

access="readwrite")

1077

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

1078

access=u"readwrite")

1128

1079

def CheckerRunning_dbus_property(self, value=None):

1129

1080

if value is None: # get

1130

1081

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

1134

1085

self.stop_checker()

1135

1086

1136

1087

# ObjectPath - property

1137

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

1088

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

1138

1089

def ObjectPath_dbus_property(self):

1139

1090

return self.dbus_object_path # is already a dbus.ObjectPath

1140

1091

1141

1092

# Secret = property

1142

@dbus_service_property(_interface, signature="ay",

1143

access="write", byte_arrays=True)

1093

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

1094

access=u"write", byte_arrays=True)

1144

1095

def Secret_dbus_property(self, value):

1145

1096

self.secret = str(value)

1146

1097

1181

1132

1182

1133

def handle(self):

1183

1134

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

1184

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

1135

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

1185

1136

unicode(self.client_address))

1186

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

1137

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

1187

1138

self.server.child_pipe.fileno())

1188

1139

1189

1140

session = (gnutls.connection

1196

1147

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

1197

1148

# here despite using OpenPGP certificates.

1198

1149

1199

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

1200

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

1201

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

1202

# "+DHE-DSS"))

1150

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

1151

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

1152

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

1153

# u"+DHE-DSS"))

1203

1154

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

1204

1155

priority = self.server.gnutls_priority

1205

1156

if priority is None:

1206

priority = "NORMAL"

1157

priority = u"NORMAL"

1207

1158

(gnutls.library.functions

1208

1159

.gnutls_priority_set_direct(session._c_object,

1209

1160

priority, None))

1211

1162

# Start communication using the Mandos protocol

1212

1163

# Get protocol number

1213

1164

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

1214

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

1165

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

1215

1166

try:

1216

1167

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

1217

1168

raise RuntimeError

1218

except (ValueError, IndexError, RuntimeError) as error:

1219

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

1169

except (ValueError, IndexError, RuntimeError), error:

1170

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

1220

1171

return

1221

1172

1222

1173

# Start GnuTLS connection

1223

1174

try:

1224

1175

session.handshake()

1225

except gnutls.errors.GNUTLSError as error:

1226

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

1176

except gnutls.errors.GNUTLSError, error:

1177

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

1227

1178

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

1228

1179

# established. Just abandon the request.

1229

1180

return

1230

logger.debug("Handshake succeeded")

1181

logger.debug(u"Handshake succeeded")

1231

1182

1232

1183

approval_required = False

1233

1184

try:

1234

1185

try:

1235

1186

fpr = self.fingerprint(self.peer_certificate

1236

1187

(session))

1237

except (TypeError,

1238

gnutls.errors.GNUTLSError) as error:

1239

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

1188

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

1189

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

1240

1190

return

1241

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

1191

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

1242

1192

1243

1193

try:

1244

1194

client = ProxyClient(child_pipe, fpr,

1253

1203

1254

1204

while True:

1255

1205

if not client.enabled:

1256

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

1206

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

1257

1207

client.name)

1258

1208

if self.server.use_dbus:

1259

1209

# Emit D-Bus signal

1264

1214

#We are approved or approval is disabled

1265

1215

break

1266

1216

elif client._approved is None:

1267

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

1217

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

1268

1218

client.name)

1269

1219

if self.server.use_dbus:

1270

1220

# Emit D-Bus signal

1272

1222

client.approval_delay_milliseconds(),

1273

1223

client.approved_by_default)

1274

1224

else:

1275

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

1225

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

1276

1226

client.name)

1277

1227

if self.server.use_dbus:

1278

1228

# Emit D-Bus signal

1293

1243

client.name)

1294

1244

if self.server.use_dbus:

1295

1245

# Emit D-Bus signal

1296

client.Rejected("Approval timed out")

1246

client.Rejected("Timed out")

1297

1247

return

1298

1248

else:

1299

1249

break

1304

1254

while sent_size < len(client.secret):

1305

1255

try:

1306

1256

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

1307

except gnutls.errors.GNUTLSError as error:

1257

except (gnutls.errors.GNUTLSError), error:

1308

1258

logger.warning("gnutls send failed")

1309

1259

return

1310

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

1260

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

1311

1261

sent, len(client.secret)

1312

1262

- (sent_size + sent))

1313

1263

sent_size += sent

1314

1264

1315

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

1265

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

1316

1266

# bump the timeout as if seen

1317

client.checked_ok(client.extended_timeout)

1267

client.checked_ok()

1318

1268

if self.server.use_dbus:

1319

1269

# Emit D-Bus signal

1320

1270

client.GotSecret()

1324

1274

client.approvals_pending -= 1

1325

1275

try:

1326

1276

session.bye()

1327

except gnutls.errors.GNUTLSError as error:

1277

except (gnutls.errors.GNUTLSError), error:

1328

1278

logger.warning("GnuTLS bye failed")

1329

1279

1330

1280

@staticmethod

1341

1291

.gnutls_certificate_get_peers

1342

1292

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

1343

1293

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

1344

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

1345

" certificate")

1294

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

1295

u" certificate")

1346

1296

if list_size.value == 0:

1347

1297

return None

1348

1298

cert = cert_list[0]

1374

1324

if crtverify.value != 0:

1375

1325

gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)

1376

1326

raise (gnutls.errors.CertificateSecurityError

1377

("Verify failed"))

1327

(u"Verify failed"))

1378

1328

# New buffer for the fingerprint

1379

1329

buf = ctypes.create_string_buffer(20)

1380

1330

buf_len = ctypes.c_size_t()

1387

1337

# Convert the buffer to a Python bytestring

1388

1338

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

1389

1339

# Convert the bytestring to hexadecimal notation

1390

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

1340

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

1391

1341

return hex_fpr

1392

1342

1393

1343

1421

1371

1422

1372

def add_pipe(self, parent_pipe):

1423

1373

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

1424

raise NotImplementedError

1374

pass

1425

1375

1426

1376

class IPv6_TCPServer(MultiprocessingMixInWithPipe,

1427

1377

socketserver.TCPServer, object):

1445

1395

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

1446

1396

if self.interface is not None:

1447

1397

if SO_BINDTODEVICE is None:

1448

logger.error("SO_BINDTODEVICE does not exist;"

1449

" cannot bind to interface %s",

1398

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

1399

u" cannot bind to interface %s",

1450

1400

self.interface)

1451

1401

else:

1452

1402

try:

1453

1403

self.socket.setsockopt(socket.SOL_SOCKET,

1454

1404

SO_BINDTODEVICE,

1455

1405

str(self.interface

1456

+ '\0'))

1457

except socket.error as error:

1406

+ u'\0'))

1407

except socket.error, error:

1458

1408

if error[0] == errno.EPERM:

1459

logger.error("No permission to"

1460

" bind to interface %s",

1409

logger.error(u"No permission to"

1410

u" bind to interface %s",

1461

1411

self.interface)

1462

1412

elif error[0] == errno.ENOPROTOOPT:

1463

logger.error("SO_BINDTODEVICE not available;"

1464

" cannot bind to interface %s",

1413

logger.error(u"SO_BINDTODEVICE not available;"

1414

u" cannot bind to interface %s",

1465

1415

self.interface)

1466

1416

else:

1467

1417

raise

1469

1419

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

1470

1420

if not self.server_address[0]:

1471

1421

if self.address_family == socket.AF_INET6:

1472

any_address = "::" # in6addr_any

1422

any_address = u"::" # in6addr_any

1473

1423

else:

1474

1424

any_address = socket.INADDR_ANY

1475

1425

self.server_address = (any_address,

1524

1474

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

1525

1475

client_object=None):

1526

1476

condition_names = {

1527

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

1528

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

1477

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

1478

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

1529

1479

# blocking).

1530

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

1531

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

1532

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

1480

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

1481

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

1482

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

1533

1483

# broken, usually for pipes and

1534

1484

# sockets).

1535

1485

}

1537

1487

for cond, name in

1538

1488

condition_names.iteritems()

1539

1489

if cond & condition)

1490

logger.debug(u"Handling IPC: FD = %d, condition = %s", source,

1491

conditions_string)

1492

1540

1493

# error or the other end of multiprocessing.Pipe has closed

1541

1494

if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):

1542

1495

return False

1543

1496

1544

1497

# Read a request from the child

1545

1498

request = parent_pipe.recv()

1499

logger.debug(u"IPC request: %s", repr(request))

1546

1500

command = request[0]

1547

1501

1548

1502

if command == 'init':

1554

1508

client = c

1555

1509

break

1556

1510

else:

1557

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

1558

"dress: %s", fpr, address)

1511

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

1512

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

1559

1513

if self.use_dbus:

1560

1514

# Emit D-Bus signal

1561

mandos_dbus_service.ClientNotFound(fpr, address[0])

1515

mandos_dbus_service.ClientNotFound(fpr, address)

1562

1516

parent_pipe.send(False)

1563

1517

return False

1564

1518

1595

1549

def string_to_delta(interval):

1596

1550

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

1597

1551

1598

>>> string_to_delta('7d')

1552

>>> string_to_delta(u'7d')

1599

1553

datetime.timedelta(7)

1600

>>> string_to_delta('60s')

1554

>>> string_to_delta(u'60s')

1601

1555

datetime.timedelta(0, 60)

1602

>>> string_to_delta('60m')

1556

>>> string_to_delta(u'60m')

1603

1557

datetime.timedelta(0, 3600)

1604

>>> string_to_delta('24h')

1558

>>> string_to_delta(u'24h')

1605

1559

datetime.timedelta(1)

1606

>>> string_to_delta('1w')

1560

>>> string_to_delta(u'1w')

1607

1561

datetime.timedelta(7)

1608

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

1562

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

1609

1563

datetime.timedelta(0, 330)

1610

1564

"""

1611

1565

timevalue = datetime.timedelta(0)

1613

1567

try:

1614

1568

suffix = unicode(s[-1])

1615

1569

value = int(s[:-1])

1616

if suffix == "d":

1570

if suffix == u"d":

1617

1571

delta = datetime.timedelta(value)

1618

elif suffix == "s":

1572

elif suffix == u"s":

1619

1573

delta = datetime.timedelta(0, value)

1620

elif suffix == "m":

1574

elif suffix == u"m":

1621

1575

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

1622

elif suffix == "h":

1576

elif suffix == u"h":

1623

1577

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

1624

elif suffix == "w":

1578

elif suffix == u"w":

1625

1579

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

1626

1580

else:

1627

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

1628

except (ValueError, IndexError) as e:

1629

raise ValueError(*(e.args))

1581

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

1582

except (ValueError, IndexError), e:

1583

raise ValueError(e.message)

1630

1584

timevalue += delta

1631

1585

return timevalue

1632

1586

1638

1592

global if_nametoindex

1639

1593

try:

1640

1594

if_nametoindex = (ctypes.cdll.LoadLibrary

1641

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

1595

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

1642

1596

.if_nametoindex)

1643

1597

except (OSError, AttributeError):

1644

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

1598

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

1645

1599

def if_nametoindex(interface):

1646

1600

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

1647

1601

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

1648

1602

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

1649

1603

ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

1650

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

1604

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

1651

1605

interface))

1652

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

1606

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

1653

1607

ifreq[16:20])[0]

1654

1608

return interface_index

1655

1609

return if_nametoindex(interface)

1663

1617

sys.exit()

1664

1618

os.setsid()

1665

1619

if not nochdir:

1666

os.chdir("/")

1620

os.chdir(u"/")

1667

1621

if os.fork():

1668

1622

sys.exit()

1669

1623

if not noclose:

1671

1625

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

1672

1626

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

1673

1627

raise OSError(errno.ENODEV,

1674

"%s not a character device"

1628

u"%s not a character device"

1675

1629

% os.path.devnull)

1676

1630

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

1677

1631

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

1685

1639

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

1686

1640

# Parsing of options, both command line and config file

1687

1641

1688

parser = argparse.ArgumentParser()

1689

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

1690

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

1691

help="show version number and exit")

1692

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

1693

help="Bind to interface IF")

1694

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

1695

help="Address to listen for requests on")

1696

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

1697

help="Port number to receive requests on")

1698

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

1699

help="Run self-test")

1700

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

1701

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

1702

" to terminal")

1703

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

1704

help="Debug level for stdout output")

1705

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

1706

" priority string (see GnuTLS documentation)")

1707

parser.add_argument("--servicename",

1708

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

1709

parser.add_argument("--configdir",

1710

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

1711

help="Directory to search for configuration"

1712

" files")

1713

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

1714

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

1715

" system bus interface")

1716

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

1717

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

1718

options = parser.parse_args()

1642

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

1643

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

1644

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

1645

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

1646

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

1647

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

1648

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

1649

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

1650

help=u"Run self-test")

1651

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

1652

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

1653

u" terminal")

1654

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

1655

help=u"Debug level for stdout output")

1656

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

1657

u" priority string (see GnuTLS documentation)")

1658

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

1659

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

1660

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

1661

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

1662

help=u"Directory to search for configuration"

1663

u" files")

1664

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

1665

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

1666

u" system bus interface")

1667

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

1668

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

1669

options = parser.parse_args()[0]

1719

1670

1720

1671

if options.check:

1721

1672

import doctest

1723

1674

sys.exit()

1724

1675

1725

1676

# Default values for config file for server-global settings

1726

server_defaults = { "interface": "",

1727

"address": "",

1728

"port": "",

1729

"debug": "False",

1730

"priority":

1731

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

1732

"servicename": "Mandos",

1733

"use_dbus": "True",

1734

"use_ipv6": "True",

1735

"debuglevel": "",

1677

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

1678

u"address": u"",

1679

u"port": u"",

1680

u"debug": u"False",

1681

u"priority":

1682

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

1683

u"servicename": u"Mandos",

1684

u"use_dbus": u"True",

1685

u"use_ipv6": u"True",

1686

u"debuglevel": u"",

1736

1687

}

1737

1688

1738

1689

# Parse config file for server-global settings

1739

1690

server_config = configparser.SafeConfigParser(server_defaults)

1740

1691

del server_defaults

1741

1692

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

1742

"mandos.conf"))

1693

u"mandos.conf"))

1743

1694

# Convert the SafeConfigParser object to a dict

1744

1695

server_settings = server_config.defaults()

1745

1696

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

1746

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

1747

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

1697

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

1698

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

1748

1699

option)

1749

1700

if server_settings["port"]:

1750

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

1751

"port")

1701

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

1702

u"port")

1752

1703

del server_config

1753

1704

1754

1705

# Override the settings from the config file with command line

1755

1706

# options, if set.

1756

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

1757

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

1758

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

1707

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

1708

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

1709

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

1759

1710

value = getattr(options, option)

1760

1711

if value is not None:

1761

1712

server_settings[option] = value

1769

1720

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

1770

1721

1771

1722

# For convenience

1772

debug = server_settings["debug"]

1773

debuglevel = server_settings["debuglevel"]

1774

use_dbus = server_settings["use_dbus"]

1775

use_ipv6 = server_settings["use_ipv6"]

1723

debug = server_settings[u"debug"]

1724

debuglevel = server_settings[u"debuglevel"]

1725

use_dbus = server_settings[u"use_dbus"]

1726

use_ipv6 = server_settings[u"use_ipv6"]

1776

1727

1777

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

1728

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

1778

1729

syslogger.setFormatter(logging.Formatter

1779

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

1780

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

1781

% server_settings["servicename"]))

1730

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

1731

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

1732

% server_settings[u"servicename"]))

1782

1733

1783

1734

# Parse config file with clients

1784

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

1785

"extended_timeout": "15m",

1786

"interval": "2m",

1787

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

1788

"host": "",

1789

"approval_delay": "0s",

1790

"approval_duration": "1s",

1735

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

1736

u"interval": u"5m",

1737

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

1738

u"host": u"",

1739

u"approval_delay": u"0s",

1740

u"approval_duration": u"1s",

1791

1741

}

1792

1742

client_config = configparser.SafeConfigParser(client_defaults)

1793

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

1794

"clients.conf"))

1743

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

1744

u"clients.conf"))

1795

1745

1796

1746

global mandos_dbus_service

1797

1747

mandos_dbus_service = None

1798

1748

1799

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

1800

server_settings["port"]),

1749

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

1750

server_settings[u"port"]),

1801

1751

ClientHandler,

1802

interface=(server_settings["interface"]

1752

interface=(server_settings[u"interface"]

1803

1753

or None),

1804

1754

use_ipv6=use_ipv6,

1805

1755

gnutls_priority=

1806

server_settings["priority"],

1756

server_settings[u"priority"],

1807

1757

use_dbus=use_dbus)

1808

if not debug:

1809

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

1810

try:

1811

pidfile = open(pidfilename, "w")

1812

except IOError:

1813

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

1758

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

1759

try:

1760

pidfile = open(pidfilename, u"w")

1761

except IOError:

1762

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

1814

1763

1815

1764

try:

1816

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

1817

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

1765

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

1766

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

1818

1767

except KeyError:

1819

1768

try:

1820

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

1821

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

1769

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

1770

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

1822

1771

except KeyError:

1823

1772

try:

1824

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

1825

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

1773

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

1774

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

1826

1775

except KeyError:

1827

1776

uid = 65534

1828

1777

gid = 65534

1829

1778

try:

1830

1779

os.setgid(gid)

1831

1780

os.setuid(uid)

1832

except OSError as error:

1781

except OSError, error:

1833

1782

if error[0] != errno.EPERM:

1834

1783

raise error

1835

1784

1850

1799

1851

1800

@gnutls.library.types.gnutls_log_func

1852

1801

def debug_gnutls(level, string):

1853

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

1802

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

1854

1803

1855

1804

(gnutls.library.functions

1856

1805

.gnutls_global_set_log_function(debug_gnutls))

1864

1813

# No console logging

1865

1814

logger.removeHandler(console)

1866

1815

1867

# Need to fork before connecting to D-Bus

1868

if not debug:

1869

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

1870

daemon()

1871

1816

1872

1817

global main_loop

1873

1818

# From the Avahi example code

1877

1822

# End of Avahi example code

1878

1823

if use_dbus:

1879

1824

try:

1880

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

1825

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

1881

1826

bus, do_not_queue=True)

1882

except dbus.exceptions.NameExistsException as e:

1883

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

1827

except dbus.exceptions.NameExistsException, e:

1828

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

1884

1829

use_dbus = False

1885

server_settings["use_dbus"] = False

1830

server_settings[u"use_dbus"] = False

1886

1831

tcp_server.use_dbus = False

1887

1832

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

1888

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

1889

servicetype = "_mandos._tcp",

1833

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

1834

servicetype = u"_mandos._tcp",

1890

1835

protocol = protocol, bus = bus)

1891

1836

if server_settings["interface"]:

1892

1837

service.interface = (if_nametoindex

1893

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

1894

1838

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

1839

1840

if not debug:

1841

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

1842

daemon()

1843

1895

1844

global multiprocessing_manager

1896

1845

multiprocessing_manager = multiprocessing.Manager()

1897

1846

1916

1865

client_config, section)))

1917

1866

for section in client_config.sections()))

1918

1867

if not tcp_server.clients:

1919

logger.warning("No clients defined")

1868

logger.warning(u"No clients defined")

1920

1869

1870

try:

1871

with pidfile:

1872

pid = os.getpid()

1873

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

1874

del pidfile

1875

except IOError:

1876

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

1877

pidfilename, pid)

1878

except NameError:

1879

# "pidfile" was never created

1880

pass

1881

del pidfilename

1882

1921

1883

if not debug:

1922

try:

1923

with pidfile:

1924

pid = os.getpid()

1925

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

1926

del pidfile

1927

except IOError:

1928

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

1929

pidfilename, pid)

1930

except NameError:

1931

# "pidfile" was never created

1932

pass

1933

del pidfilename

1934

1935

1884

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

1936

1937

1885

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

1938

1886

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

1939

1887

1941

1889

class MandosDBusService(dbus.service.Object):

1942

1890

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

1943

1891

def __init__(self):

1944

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

1945

_interface = "se.bsnet.fukt.Mandos"

1892

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

1893

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

1946

1894

1947

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

1895

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

1948

1896

def ClientAdded(self, objpath):

1949

1897

"D-Bus signal"

1950

1898

pass

1951

1899

1952

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

1900

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

1953

1901

def ClientNotFound(self, fingerprint, address):

1954

1902

"D-Bus signal"

1955

1903

pass

1956

1904

1957

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

1905

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

1958

1906

def ClientRemoved(self, objpath, name):

1959

1907

"D-Bus signal"

1960

1908

pass

1961

1909

1962

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

1910

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

1963

1911

def GetAllClients(self):

1964

1912

"D-Bus method"

1965

1913

return dbus.Array(c.dbus_object_path

1966

1914

for c in tcp_server.clients)

1967

1915

1968

1916

@dbus.service.method(_interface,

1969

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

1917

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

1970

1918

def GetAllClientsWithProperties(self):

1971

1919

"D-Bus method"

1972

1920

return dbus.Dictionary(

1973

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

1921

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

1974

1922

for c in tcp_server.clients),

1975

signature="oa{sv}")

1923

signature=u"oa{sv}")

1976

1924

1977

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

1925

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

1978

1926

def RemoveClient(self, object_path):

1979

1927

"D-Bus method"

1980

1928

for c in tcp_server.clients:

2022

1970

# Find out what port we got

2023

1971

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

2024

1972

if use_ipv6:

2025

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

1973

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

2026

1974

" flowinfo %d, scope_id %d"

2027

1975

% tcp_server.socket.getsockname())

2028

1976

else: # IPv4

2029

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

1977

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

2030

1978

% tcp_server.socket.getsockname())

2031

1979

2032

1980

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

2035

1983

# From the Avahi example code

2036

1984

try:

2037

1985

service.activate()

2038

except dbus.exceptions.DBusException as error:

2039

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

1986

except dbus.exceptions.DBusException, error:

1987

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

2040

1988

cleanup()

2041

1989

sys.exit(1)

2042

1990

# End of Avahi example code

2046

1994

(tcp_server.handle_request

2047

1995

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

2048

1996

2049

logger.debug("Starting main loop")

1997

logger.debug(u"Starting main loop")

2050

1998

main_loop.run()

2051

except AvahiError as error:

2052

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

1999

except AvahiError, error:

2000

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

2053

2001

cleanup()

2054

2002

sys.exit(1)

2055

2003

except KeyboardInterrupt:

2056

2004

if debug:

2057

print("", file=sys.stderr)

2058

logger.debug("Server received KeyboardInterrupt")

2059

logger.debug("Server exiting")

2005

print >> sys.stderr

2006

logger.debug(u"Server received KeyboardInterrupt")

2007

logger.debug(u"Server exiting")

2060

2008

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

2061

2009

cleanup()

2062

2010