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- Committer: Teddy Hogeborn
- Date: 2010-09-12 03:00:40 UTC
- Revision ID: teddy@fukt.bsnet.se-20100912030040-b0uopyennste9fdh
Documentation changes:
* DBUS-API: New file documenting the server D-Bus interface.
* clients.conf: Add examples of new approval settings.
* debian/mandos.docs: Added "DBUS-API".
* mandos-clients.conf.xml (OPTIONS): Added "approved_by_default",
"approval_delay", and
"approval_duration".
* mandos.xml (D-BUS INTERFACE): Refer to the "DBUS-API" file.
(BUGS): Remove mention of lack of a remote query interface.
* DBUS-API: New file documenting the server D-Bus interface.
* clients.conf: Add examples of new approval settings.
* debian/mandos.docs: Added "DBUS-API".
* mandos-clients.conf.xml (OPTIONS): Added "approved_by_default",
"approval_delay", and
"approval_duration".
* mandos.xml (D-BUS INTERFACE): Refer to the "DBUS-API" file.
(BUGS): Remove mention of lack of a remote query interface.
- files removed:
- debian/source
- files modified:
- .bzrignore
added
removed
mandos
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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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# Copyright © 2008-2011 Teddy Hogeborn
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# Copyright © 2008-2011 Björn Påhlsson
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# Copyright © 2008,2009 Teddy Hogeborn
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# Copyright © 2008,2009 Björn Påhlsson
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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#
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# Contact the authors at <mandos@recompile.se>.
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# Contact the authors at <mandos@fukt.bsnet.se>.
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#
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from __future__ import (division, absolute_import, print_function,
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unicode_literals)
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from __future__ import division, with_statement, absolute_import
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import SocketServer as socketserver
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import socket
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import argparse
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import optparse
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import datetime
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import errno
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import gnutls.crypto
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import functools
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import cPickle as pickle
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import multiprocessing
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import types
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import dbus
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import dbus.service
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SO_BINDTODEVICE = None
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version = "1.3.1"
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version = "1.0.14"
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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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name: string; Example: 'Mandos'
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type: string; Example: '_mandos._tcp'.
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name: string; Example: u'Mandos'
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type: string; Example: u'_mandos._tcp'.
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See <http://www.dns-sd.org/ServiceTypes.html>
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port: integer; what port to announce
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TXT: list of strings; TXT record for the service
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"""
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def __init__(self, interface = avahi.IF_UNSPEC, name = None,
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servicetype = None, port = None, TXT = None,
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domain = "", host = "", max_renames = 32768,
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domain = u"", host = u"", max_renames = 32768,
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protocol = avahi.PROTO_UNSPEC, bus = None):
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self.interface = interface
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self.name = name
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self.group = None # our entry group
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self.server = None
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self.bus = bus
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self.entry_group_state_changed_match = None
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def rename(self):
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"""Derived from the Avahi example code"""
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if self.rename_count >= self.max_renames:
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logger.critical("No suitable Zeroconf service name found"
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" after %i retries, exiting.",
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logger.critical(u"No suitable Zeroconf service name found"
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u" after %i retries, exiting.",
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self.rename_count)
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raise AvahiServiceError("Too many renames")
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self.name = unicode(self.server
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.GetAlternativeServiceName(self.name))
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logger.info("Changing Zeroconf service name to %r ...",
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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(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,
228
dbus.exceptions.DBusException) as e:
229
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):
219
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" }
242
if state in bad_states:
243
if bad_states[state] is not None:
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if error is None:
245
logger.error(bad_states[state])
246
else:
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logger.error(bad_states[state] + ": %r", error)
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self.cleanup()
221
logger.debug(u"Avahi server state change: %i", state)
222
if state == avahi.SERVER_COLLISION:
223
logger.error(u"Zeroconf server name collision")
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self.remove()
249
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elif state == avahi.SERVER_RUNNING:
250
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self.add()
251
else:
252
if error is None:
253
logger.debug("Unknown state: %r", state)
254
else:
255
logger.debug("Unknown state: %r: %r", state, error)
256
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def activate(self):
257
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"""Derived from the Avahi example code"""
258
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if self.server is None:
259
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self.server = dbus.Interface(
260
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self.bus.get_object(avahi.DBUS_NAME,
261
avahi.DBUS_PATH_SERVER,
262
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",
234
self.server.connect_to_signal(u"StateChanged",
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self.server_state_changed)
266
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self.server_state_changed(self.server.GetState())
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238
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def _timedelta_to_milliseconds(td):
270
"Convert a datetime.timedelta() to milliseconds"
271
return ((td.days * 24 * 60 * 60 * 1000)
272
+ (td.seconds * 1000)
273
+ (td.microseconds // 1000))
274
275
239
class Client(object):
276
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"""A representation of a client host served by this server.
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Attributes:
279
_approved: bool(); 'None' if not yet approved/disapproved
280
approval_delay: datetime.timedelta(); Time to wait for approval
281
approval_duration: datetime.timedelta(); Duration of one approval
243
name: string; from the config file, used in log messages and
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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
260
checker_initiator_tag: a gobject event source tag, or None
261
disable_initiator_tag: - '' -
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checker_callback_tag: - '' -
263
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
292
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current_checker_command: string; current running checker_command
293
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
295
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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name: string; from the config file, used in log messages and
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D-Bus identifiers
305
secret: bytestring; sent verbatim (over TLS) to client
306
timeout: datetime.timedelta(); How long from last_checked_ok
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until this client is disabled
308
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
269
_approved: bool(); 'None' if not yet approved/disapproved
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approval_duration: datetime.timedelta(); Duration of one approval
312
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"""
313
272
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runtime_expansions = ("approval_delay", "approval_duration",
315
"created", "enabled", "fingerprint",
316
"host", "interval", "last_checked_ok",
317
"last_enabled", "name", "timeout")
273
@staticmethod
274
def _timedelta_to_milliseconds(td):
275
"Convert a datetime.timedelta() to milliseconds"
276
return ((td.days * 24 * 60 * 60 * 1000)
277
+ (td.seconds * 1000)
278
+ (td.microseconds // 1000))
318
279
319
280
def timeout_milliseconds(self):
320
281
"Return the 'timeout' attribute in milliseconds"
321
return _timedelta_to_milliseconds(self.timeout)
322
323
def extended_timeout_milliseconds(self):
324
"Return the 'extended_timeout' attribute in milliseconds"
325
return _timedelta_to_milliseconds(self.extended_timeout)
282
return self._timedelta_to_milliseconds(self.timeout)
326
283
327
284
def interval_milliseconds(self):
328
285
"Return the 'interval' attribute in milliseconds"
329
return _timedelta_to_milliseconds(self.interval)
330
286
return self._timedelta_to_milliseconds(self.interval)
287
331
288
def approval_delay_milliseconds(self):
332
return _timedelta_to_milliseconds(self.approval_delay)
289
return self._timedelta_to_milliseconds(self.approval_delay)
333
290
334
291
def __init__(self, name = None, disable_hook=None, config=None):
335
292
"""Note: the 'checker' key in 'config' sets the
338
295
self.name = name
339
296
if config is None:
340
297
config = {}
341
logger.debug("Creating client %r", self.name)
298
logger.debug(u"Creating client %r", self.name)
342
299
# Uppercase and remove spaces from fingerprint for later
343
300
# comparison purposes with return value from the fingerprint()
344
301
# function
345
self.fingerprint = (config["fingerprint"].upper()
346
.replace(" ", ""))
347
logger.debug(" Fingerprint: %s", self.fingerprint)
348
if "secret" in config:
349
self.secret = config["secret"].decode("base64")
350
elif "secfile" in config:
302
self.fingerprint = (config[u"fingerprint"].upper()
303
.replace(u" ", u""))
304
logger.debug(u" Fingerprint: %s", self.fingerprint)
305
if u"secret" in config:
306
self.secret = config[u"secret"].decode(u"base64")
307
elif u"secfile" in config:
351
308
with open(os.path.expanduser(os.path.expandvars
352
(config["secfile"])),
309
(config[u"secfile"])),
353
310
"rb") as secfile:
354
311
self.secret = secfile.read()
355
312
else:
356
raise TypeError("No secret or secfile for client %s"
313
raise TypeError(u"No secret or secfile for client %s"
357
314
% self.name)
358
self.host = config.get("host", "")
315
self.host = config.get(u"host", u"")
359
316
self.created = datetime.datetime.utcnow()
360
317
self.enabled = False
361
self.last_approval_request = None
362
318
self.last_enabled = None
363
319
self.last_checked_ok = None
364
self.timeout = string_to_delta(config["timeout"])
365
self.extended_timeout = string_to_delta(config
366
["extended_timeout"])
367
self.interval = string_to_delta(config["interval"])
320
self.timeout = string_to_delta(config[u"timeout"])
321
self.interval = string_to_delta(config[u"interval"])
368
322
self.disable_hook = disable_hook
369
323
self.checker = None
370
324
self.checker_initiator_tag = None
371
325
self.disable_initiator_tag = None
372
self.expires = None
373
326
self.checker_callback_tag = None
374
self.checker_command = config["checker"]
327
self.checker_command = config[u"checker"]
375
328
self.current_checker_command = None
376
329
self.last_connect = None
377
330
self._approved = None
378
self.approved_by_default = config.get("approved_by_default",
331
self.approved_by_default = config.get(u"approved_by_default",
379
332
True)
380
333
self.approvals_pending = 0
381
334
self.approval_delay = string_to_delta(
382
config["approval_delay"])
335
config[u"approval_delay"])
383
336
self.approval_duration = string_to_delta(
384
config["approval_duration"])
385
self.changedstate = (multiprocessing_manager
386
.Condition(multiprocessing_manager
387
.Lock()))
337
config[u"approval_duration"])
338
self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
388
339
389
340
def send_changedstate(self):
390
341
self.changedstate.acquire()
391
342
self.changedstate.notify_all()
392
343
self.changedstate.release()
393
344
394
345
def enable(self):
395
346
"""Start this client's checker and timeout hooks"""
396
if getattr(self, "enabled", False):
347
if getattr(self, u"enabled", False):
397
348
# Already enabled
398
349
return
399
350
self.send_changedstate()
351
self.last_enabled = datetime.datetime.utcnow()
400
352
# Schedule a new checker to be started an 'interval' from now,
401
353
# and every interval from then on.
402
354
self.checker_initiator_tag = (gobject.timeout_add
403
355
(self.interval_milliseconds(),
404
356
self.start_checker))
405
357
# Schedule a disable() when 'timeout' has passed
406
self.expires = datetime.datetime.utcnow() + self.timeout
407
358
self.disable_initiator_tag = (gobject.timeout_add
408
359
(self.timeout_milliseconds(),
409
360
self.disable))
410
361
self.enabled = True
411
self.last_enabled = datetime.datetime.utcnow()
412
362
# Also start a new checker *right now*.
413
363
self.start_checker()
414
364
419
369
if not quiet:
420
370
self.send_changedstate()
421
371
if not quiet:
422
logger.info("Disabling client %s", self.name)
423
if getattr(self, "disable_initiator_tag", False):
372
logger.info(u"Disabling client %s", self.name)
373
if getattr(self, u"disable_initiator_tag", False):
424
374
gobject.source_remove(self.disable_initiator_tag)
425
375
self.disable_initiator_tag = None
426
self.expires = None
427
if getattr(self, "checker_initiator_tag", False):
376
if getattr(self, u"checker_initiator_tag", False):
428
377
gobject.source_remove(self.checker_initiator_tag)
429
378
self.checker_initiator_tag = None
430
379
self.stop_checker()
445
394
if os.WIFEXITED(condition):
446
395
exitstatus = os.WEXITSTATUS(condition)
447
396
if exitstatus == 0:
448
logger.info("Checker for %(name)s succeeded",
397
logger.info(u"Checker for %(name)s succeeded",
449
398
vars(self))
450
399
self.checked_ok()
451
400
else:
452
logger.info("Checker for %(name)s failed",
401
logger.info(u"Checker for %(name)s failed",
453
402
vars(self))
454
403
else:
455
logger.warning("Checker for %(name)s crashed?",
404
logger.warning(u"Checker for %(name)s crashed?",
456
405
vars(self))
457
406
458
def checked_ok(self, timeout=None):
407
def checked_ok(self):
459
408
"""Bump up the timeout for this client.
460
409
461
410
This should only be called when the client has been seen,
462
411
alive and well.
463
412
"""
464
if timeout is None:
465
timeout = self.timeout
466
413
self.last_checked_ok = datetime.datetime.utcnow()
467
414
gobject.source_remove(self.disable_initiator_tag)
468
self.expires = datetime.datetime.utcnow() + timeout
469
415
self.disable_initiator_tag = (gobject.timeout_add
470
(_timedelta_to_milliseconds
471
(timeout), self.disable))
472
473
def need_approval(self):
474
self.last_approval_request = datetime.datetime.utcnow()
416
(self.timeout_milliseconds(),
417
self.disable))
475
418
476
419
def start_checker(self):
477
420
"""Start a new checker subprocess if one is not running.
490
433
# If a checker exists, make sure it is not a zombie
491
434
try:
492
435
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
493
except (AttributeError, OSError) as error:
436
except (AttributeError, OSError), error:
494
437
if (isinstance(error, OSError)
495
438
and error.errno != errno.ECHILD):
496
439
raise error
497
440
else:
498
441
if pid:
499
logger.warning("Checker was a zombie")
442
logger.warning(u"Checker was a zombie")
500
443
gobject.source_remove(self.checker_callback_tag)
501
444
self.checker_callback(pid, status,
502
445
self.current_checker_command)
507
450
command = self.checker_command % self.host
508
451
except TypeError:
509
452
# Escape attributes for the shell
510
escaped_attrs = dict(
511
(attr,
512
re.escape(unicode(str(getattr(self, attr, "")),
513
errors=
514
'replace')))
515
for attr in
516
self.runtime_expansions)
517
453
escaped_attrs = dict((key,
454
re.escape(unicode(str(val),
455
errors=
456
u'replace')))
457
for key, val in
458
vars(self).iteritems())
518
459
try:
519
460
command = self.checker_command % escaped_attrs
520
except TypeError as error:
521
logger.error('Could not format string "%s":'
522
' %s', self.checker_command, error)
461
except TypeError, error:
462
logger.error(u'Could not format string "%s":'
463
u' %s', self.checker_command, error)
523
464
return True # Try again later
524
465
self.current_checker_command = command
525
466
try:
526
logger.info("Starting checker %r for %s",
467
logger.info(u"Starting checker %r for %s",
527
468
command, self.name)
528
469
# We don't need to redirect stdout and stderr, since
529
470
# in normal mode, that is already done by daemon(),
531
472
# always replaced by /dev/null.)
532
473
self.checker = subprocess.Popen(command,
533
474
close_fds=True,
534
shell=True, cwd="/")
475
shell=True, cwd=u"/")
535
476
self.checker_callback_tag = (gobject.child_watch_add
536
477
(self.checker.pid,
537
478
self.checker_callback,
542
483
if pid:
543
484
gobject.source_remove(self.checker_callback_tag)
544
485
self.checker_callback(pid, status, command)
545
except OSError as error:
546
logger.error("Failed to start subprocess: %s",
486
except OSError, error:
487
logger.error(u"Failed to start subprocess: %s",
547
488
error)
548
489
# Re-run this periodically if run by gobject.timeout_add
549
490
return True
553
494
if self.checker_callback_tag:
554
495
gobject.source_remove(self.checker_callback_tag)
555
496
self.checker_callback_tag = None
556
if getattr(self, "checker", None) is None:
497
if getattr(self, u"checker", None) is None:
557
498
return
558
logger.debug("Stopping checker for %(name)s", vars(self))
499
logger.debug(u"Stopping checker for %(name)s", vars(self))
559
500
try:
560
501
os.kill(self.checker.pid, signal.SIGTERM)
561
502
#time.sleep(0.5)
562
503
#if self.checker.poll() is None:
563
504
# os.kill(self.checker.pid, signal.SIGKILL)
564
except OSError as error:
505
except OSError, error:
565
506
if error.errno != errno.ESRCH: # No such process
566
507
raise
567
508
self.checker = None
568
509
569
570
def dbus_service_property(dbus_interface, signature="v",
571
access="readwrite", byte_arrays=False):
510
def dbus_service_property(dbus_interface, signature=u"v",
511
access=u"readwrite", byte_arrays=False):
572
512
"""Decorators for marking methods of a DBusObjectWithProperties to
573
513
become properties on the D-Bus.
574
514
581
521
"""
582
522
# Encoding deeply encoded byte arrays is not supported yet by the
583
523
# "Set" method, so we fail early here:
584
if byte_arrays and signature != "ay":
585
raise ValueError("Byte arrays not supported for non-'ay'"
586
" 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)
587
527
def decorator(func):
588
528
func._dbus_is_property = True
589
529
func._dbus_interface = dbus_interface
590
530
func._dbus_signature = signature
591
531
func._dbus_access = access
592
532
func._dbus_name = func.__name__
593
if func._dbus_name.endswith("_dbus_property"):
533
if func._dbus_name.endswith(u"_dbus_property"):
594
534
func._dbus_name = func._dbus_name[:-14]
595
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
535
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
596
536
return func
597
537
return decorator
598
538
618
558
619
559
class DBusObjectWithProperties(dbus.service.Object):
620
560
"""A D-Bus object with properties.
621
561
622
562
Classes inheriting from this can use the dbus_service_property
623
563
decorator to expose methods as D-Bus properties. It exposes the
624
564
standard Get(), Set(), and GetAll() methods on the D-Bus.
626
566
627
567
@staticmethod
628
568
def _is_dbus_property(obj):
629
return getattr(obj, "_dbus_is_property", False)
569
return getattr(obj, u"_dbus_is_property", False)
630
570
631
571
def _get_all_dbus_properties(self):
632
572
"""Returns a generator of (name, attribute) pairs
633
573
"""
634
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
635
for cls in self.__class__.__mro__
574
return ((prop._dbus_name, prop)
636
575
for name, prop in
637
inspect.getmembers(cls, self._is_dbus_property))
576
inspect.getmembers(self, self._is_dbus_property))
638
577
639
578
def _get_dbus_property(self, interface_name, property_name):
640
579
"""Returns a bound method if one exists which is a D-Bus
641
580
property with the specified name and interface.
642
581
"""
643
for cls in self.__class__.__mro__:
644
for name, value in (inspect.getmembers
645
(cls, self._is_dbus_property)):
646
if (value._dbus_name == property_name
647
and value._dbus_interface == interface_name):
648
return value.__get__(self)
649
582
for name in (property_name,
583
property_name + u"_dbus_property"):
584
prop = getattr(self, name, None)
585
if (prop is None
586
or not self._is_dbus_property(prop)
587
or prop._dbus_name != property_name
588
or (interface_name and prop._dbus_interface
589
and interface_name != prop._dbus_interface)):
590
continue
591
return prop
650
592
# No such property
651
raise DBusPropertyNotFound(self.dbus_object_path + ":"
652
+ interface_name + "."
593
raise DBusPropertyNotFound(self.dbus_object_path + u":"
594
+ interface_name + u"."
653
595
+ property_name)
654
596
655
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
656
out_signature="v")
597
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
598
out_signature=u"v")
657
599
def Get(self, interface_name, property_name):
658
600
"""Standard D-Bus property Get() method, see D-Bus standard.
659
601
"""
660
602
prop = self._get_dbus_property(interface_name, property_name)
661
if prop._dbus_access == "write":
603
if prop._dbus_access == u"write":
662
604
raise DBusPropertyAccessException(property_name)
663
605
value = prop()
664
if not hasattr(value, "variant_level"):
606
if not hasattr(value, u"variant_level"):
665
607
return value
666
608
return type(value)(value, variant_level=value.variant_level+1)
667
609
668
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
610
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
669
611
def Set(self, interface_name, property_name, value):
670
612
"""Standard D-Bus property Set() method, see D-Bus standard.
671
613
"""
672
614
prop = self._get_dbus_property(interface_name, property_name)
673
if prop._dbus_access == "read":
615
if prop._dbus_access == u"read":
674
616
raise DBusPropertyAccessException(property_name)
675
if prop._dbus_get_args_options["byte_arrays"]:
617
if prop._dbus_get_args_options[u"byte_arrays"]:
676
618
# The byte_arrays option is not supported yet on
677
619
# signatures other than "ay".
678
if prop._dbus_signature != "ay":
620
if prop._dbus_signature != u"ay":
679
621
raise ValueError
680
622
value = dbus.ByteArray(''.join(unichr(byte)
681
623
for byte in value))
682
624
prop(value)
683
625
684
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
685
out_signature="a{sv}")
626
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
627
out_signature=u"a{sv}")
686
628
def GetAll(self, interface_name):
687
629
"""Standard D-Bus property GetAll() method, see D-Bus
688
630
standard.
689
631
690
632
Note: Will not include properties with access="write".
691
633
"""
692
634
all = {}
696
638
# Interface non-empty but did not match
697
639
continue
698
640
# Ignore write-only properties
699
if prop._dbus_access == "write":
641
if prop._dbus_access == u"write":
700
642
continue
701
643
value = prop()
702
if not hasattr(value, "variant_level"):
644
if not hasattr(value, u"variant_level"):
703
645
all[name] = value
704
646
continue
705
647
all[name] = type(value)(value, variant_level=
706
648
value.variant_level+1)
707
return dbus.Dictionary(all, signature="sv")
649
return dbus.Dictionary(all, signature=u"sv")
708
650
709
651
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
710
out_signature="s",
652
out_signature=u"s",
711
653
path_keyword='object_path',
712
654
connection_keyword='connection')
713
655
def Introspect(self, object_path, connection):
718
660
try:
719
661
document = xml.dom.minidom.parseString(xmlstring)
720
662
def make_tag(document, name, prop):
721
e = document.createElement("property")
722
e.setAttribute("name", name)
723
e.setAttribute("type", prop._dbus_signature)
724
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)
725
667
return e
726
for if_tag in document.getElementsByTagName("interface"):
668
for if_tag in document.getElementsByTagName(u"interface"):
727
669
for tag in (make_tag(document, name, prop)
728
670
for name, prop
729
671
in self._get_all_dbus_properties()
730
672
if prop._dbus_interface
731
== if_tag.getAttribute("name")):
673
== if_tag.getAttribute(u"name")):
732
674
if_tag.appendChild(tag)
733
675
# Add the names to the return values for the
734
676
# "org.freedesktop.DBus.Properties" methods
735
if (if_tag.getAttribute("name")
736
== "org.freedesktop.DBus.Properties"):
737
for cn in if_tag.getElementsByTagName("method"):
738
if cn.getAttribute("name") == "Get":
739
for arg in cn.getElementsByTagName("arg"):
740
if (arg.getAttribute("direction")
741
== "out"):
742
arg.setAttribute("name", "value")
743
elif cn.getAttribute("name") == "GetAll":
744
for arg in cn.getElementsByTagName("arg"):
745
if (arg.getAttribute("direction")
746
== "out"):
747
arg.setAttribute("name", "props")
748
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")
749
691
document.unlink()
750
692
except (AttributeError, xml.dom.DOMException,
751
xml.parsers.expat.ExpatError) as error:
752
logger.error("Failed to override Introspection method",
693
xml.parsers.expat.ExpatError), error:
694
logger.error(u"Failed to override Introspection method",
753
695
error)
754
696
return xmlstring
755
697
756
698
757
def datetime_to_dbus (dt, variant_level=0):
758
"""Convert a UTC datetime.datetime() to a D-Bus type."""
759
if dt is None:
760
return dbus.String("", variant_level = variant_level)
761
return dbus.String(dt.isoformat(),
762
variant_level=variant_level)
763
764
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
765
.__metaclass__):
766
"""Applied to an empty subclass of a D-Bus object, this metaclass
767
will add additional D-Bus attributes matching a certain pattern.
768
"""
769
def __new__(mcs, name, bases, attr):
770
# Go through all the base classes which could have D-Bus
771
# methods, signals, or properties in them
772
for base in (b for b in bases
773
if issubclass(b, dbus.service.Object)):
774
# Go though all attributes of the base class
775
for attrname, attribute in inspect.getmembers(base):
776
# Ignore non-D-Bus attributes, and D-Bus attributes
777
# with the wrong interface name
778
if (not hasattr(attribute, "_dbus_interface")
779
or not attribute._dbus_interface
780
.startswith("se.recompile.Mandos")):
781
continue
782
# Create an alternate D-Bus interface name based on
783
# the current name
784
alt_interface = (attribute._dbus_interface
785
.replace("se.recompile.Mandos",
786
"se.bsnet.fukt.Mandos"))
787
# Is this a D-Bus signal?
788
if getattr(attribute, "_dbus_is_signal", False):
789
# Extract the original non-method function by
790
# black magic
791
nonmethod_func = (dict(
792
zip(attribute.func_code.co_freevars,
793
attribute.__closure__))["func"]
794
.cell_contents)
795
# Create a new, but exactly alike, function
796
# object, and decorate it to be a new D-Bus signal
797
# with the alternate D-Bus interface name
798
new_function = (dbus.service.signal
799
(alt_interface,
800
attribute._dbus_signature)
801
(types.FunctionType(
802
nonmethod_func.func_code,
803
nonmethod_func.func_globals,
804
nonmethod_func.func_name,
805
nonmethod_func.func_defaults,
806
nonmethod_func.func_closure)))
807
# Define a creator of a function to call both the
808
# old and new functions, so both the old and new
809
# signals gets sent when the function is called
810
def fixscope(func1, func2):
811
"""This function is a scope container to pass
812
func1 and func2 to the "call_both" function
813
outside of its arguments"""
814
def call_both(*args, **kwargs):
815
"""This function will emit two D-Bus
816
signals by calling func1 and func2"""
817
func1(*args, **kwargs)
818
func2(*args, **kwargs)
819
return call_both
820
# Create the "call_both" function and add it to
821
# the class
822
attr[attrname] = fixscope(attribute,
823
new_function)
824
# Is this a D-Bus method?
825
elif getattr(attribute, "_dbus_is_method", False):
826
# Create a new, but exactly alike, function
827
# object. Decorate it to be a new D-Bus method
828
# with the alternate D-Bus interface name. Add it
829
# to the class.
830
attr[attrname] = (dbus.service.method
831
(alt_interface,
832
attribute._dbus_in_signature,
833
attribute._dbus_out_signature)
834
(types.FunctionType
835
(attribute.func_code,
836
attribute.func_globals,
837
attribute.func_name,
838
attribute.func_defaults,
839
attribute.func_closure)))
840
# Is this a D-Bus property?
841
elif getattr(attribute, "_dbus_is_property", False):
842
# Create a new, but exactly alike, function
843
# object, and decorate it to be a new D-Bus
844
# property with the alternate D-Bus interface
845
# name. Add it to the class.
846
attr[attrname] = (dbus_service_property
847
(alt_interface,
848
attribute._dbus_signature,
849
attribute._dbus_access,
850
attribute
851
._dbus_get_args_options
852
["byte_arrays"])
853
(types.FunctionType
854
(attribute.func_code,
855
attribute.func_globals,
856
attribute.func_name,
857
attribute.func_defaults,
858
attribute.func_closure)))
859
return type.__new__(mcs, name, bases, attr)
860
861
699
class ClientDBus(Client, DBusObjectWithProperties):
862
700
"""A Client class using D-Bus
863
701
865
703
dbus_object_path: dbus.ObjectPath
866
704
bus: dbus.SystemBus()
867
705
"""
868
869
runtime_expansions = (Client.runtime_expansions
870
+ ("dbus_object_path",))
871
872
706
# dbus.service.Object doesn't use super(), so we can't either.
873
707
874
708
def __init__(self, bus = None, *args, **kwargs):
877
711
Client.__init__(self, *args, **kwargs)
878
712
# Only now, when this client is initialized, can it show up on
879
713
# the D-Bus
880
client_object_name = unicode(self.name).translate(
881
{ord("."): ord("_"),
882
ord("-"): ord("_")})
883
714
self.dbus_object_path = (dbus.ObjectPath
884
("/clients/" + client_object_name))
715
(u"/clients/"
716
+ self.name.replace(u".", u"_")))
885
717
DBusObjectWithProperties.__init__(self, self.bus,
886
718
self.dbus_object_path)
887
719
888
def notifychangeproperty(transform_func,
889
dbus_name, type_func=lambda x: x,
890
variant_level=1):
891
""" Modify a variable so that it's a property which announces
892
its changes to DBus.
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)
893
731
894
transform_fun: Function that takes a value and transforms it
895
to a D-Bus type.
896
dbus_name: D-Bus name of the variable
897
type_func: Function that transform the value before sending it
898
to the D-Bus. Default: no transform
899
variant_level: D-Bus variant level. Default: 1
900
"""
901
real_value = [None,]
902
def setter(self, value):
903
old_value = real_value[0]
904
real_value[0] = value
905
if hasattr(self, "dbus_object_path"):
906
if type_func(old_value) != type_func(real_value[0]):
907
dbus_value = transform_func(type_func
908
(real_value[0]),
909
variant_level)
910
self.PropertyChanged(dbus.String(dbus_name),
911
dbus_value)
912
913
return property(lambda self: real_value[0], setter)
914
915
916
expires = notifychangeproperty(datetime_to_dbus, "Expires")
917
approvals_pending = notifychangeproperty(dbus.Boolean,
918
"ApprovalPending",
919
type_func = bool)
920
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
921
last_enabled = notifychangeproperty(datetime_to_dbus,
922
"LastEnabled")
923
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
924
type_func = lambda checker:
925
checker is not None)
926
last_checked_ok = notifychangeproperty(datetime_to_dbus,
927
"LastCheckedOK")
928
last_approval_request = notifychangeproperty(
929
datetime_to_dbus, "LastApprovalRequest")
930
approved_by_default = notifychangeproperty(dbus.Boolean,
931
"ApprovedByDefault")
932
approval_delay = notifychangeproperty(dbus.UInt16,
933
"ApprovalDelay",
934
type_func =
935
_timedelta_to_milliseconds)
936
approval_duration = notifychangeproperty(
937
dbus.UInt16, "ApprovalDuration",
938
type_func = _timedelta_to_milliseconds)
939
host = notifychangeproperty(dbus.String, "Host")
940
timeout = notifychangeproperty(dbus.UInt16, "Timeout",
941
type_func =
942
_timedelta_to_milliseconds)
943
extended_timeout = notifychangeproperty(
944
dbus.UInt16, "ExtendedTimeout",
945
type_func = _timedelta_to_milliseconds)
946
interval = notifychangeproperty(dbus.UInt16,
947
"Interval",
948
type_func =
949
_timedelta_to_milliseconds)
950
checker_command = notifychangeproperty(dbus.String, "Checker")
951
952
del notifychangeproperty
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
953
763
954
764
def __del__(self, *args, **kwargs):
955
765
try:
956
766
self.remove_from_connection()
957
767
except LookupError:
958
768
pass
959
if hasattr(DBusObjectWithProperties, "__del__"):
769
if hasattr(DBusObjectWithProperties, u"__del__"):
960
770
DBusObjectWithProperties.__del__(self, *args, **kwargs)
961
771
Client.__del__(self, *args, **kwargs)
962
772
964
774
*args, **kwargs):
965
775
self.checker_callback_tag = None
966
776
self.checker = None
777
# Emit D-Bus signal
778
self.PropertyChanged(dbus.String(u"CheckerRunning"),
779
dbus.Boolean(False, variant_level=1))
967
780
if os.WIFEXITED(condition):
968
781
exitstatus = os.WEXITSTATUS(condition)
969
782
# Emit D-Bus signal
979
792
return Client.checker_callback(self, pid, condition, command,
980
793
*args, **kwargs)
981
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
982
804
def start_checker(self, *args, **kwargs):
983
805
old_checker = self.checker
984
806
if self.checker is not None:
991
813
and old_checker_pid != self.checker.pid):
992
814
# Emit D-Bus signal
993
815
self.CheckerStarted(self.current_checker_command)
816
self.PropertyChanged(
817
dbus.String(u"CheckerRunning"),
818
dbus.Boolean(True, variant_level=1))
994
819
return r
995
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
996
830
def _reset_approved(self):
997
831
self._approved = None
998
832
return False
1000
834
def approve(self, value=True):
1001
835
self.send_changedstate()
1002
836
self._approved = value
1003
gobject.timeout_add(_timedelta_to_milliseconds
837
gobject.timeout_add(self._timedelta_to_milliseconds
1004
838
(self.approval_duration),
1005
839
self._reset_approved)
1006
840
1007
841
1008
842
## D-Bus methods, signals & properties
1009
_interface = "se.recompile.Mandos.Client"
843
_interface = u"se.bsnet.fukt.Mandos.Client"
1010
844
1011
845
## Signals
1012
846
1013
847
# CheckerCompleted - signal
1014
@dbus.service.signal(_interface, signature="nxs")
848
@dbus.service.signal(_interface, signature=u"nxs")
1015
849
def CheckerCompleted(self, exitcode, waitstatus, command):
1016
850
"D-Bus signal"
1017
851
pass
1018
852
1019
853
# CheckerStarted - signal
1020
@dbus.service.signal(_interface, signature="s")
854
@dbus.service.signal(_interface, signature=u"s")
1021
855
def CheckerStarted(self, command):
1022
856
"D-Bus signal"
1023
857
pass
1024
858
1025
859
# PropertyChanged - signal
1026
@dbus.service.signal(_interface, signature="sv")
860
@dbus.service.signal(_interface, signature=u"sv")
1027
861
def PropertyChanged(self, property, value):
1028
862
"D-Bus signal"
1029
863
pass
1038
872
pass
1039
873
1040
874
# Rejected - signal
1041
@dbus.service.signal(_interface, signature="s")
875
@dbus.service.signal(_interface, signature=u"s")
1042
876
def Rejected(self, reason):
1043
877
"D-Bus signal"
1044
878
pass
1045
879
1046
880
# NeedApproval - signal
1047
@dbus.service.signal(_interface, signature="tb")
881
@dbus.service.signal(_interface, signature=u"tb")
1048
882
def NeedApproval(self, timeout, default):
1049
883
"D-Bus signal"
1050
return self.need_approval()
884
pass
1051
885
1052
886
## Methods
1053
887
1054
888
# Approve - method
1055
@dbus.service.method(_interface, in_signature="b")
889
@dbus.service.method(_interface, in_signature=u"b")
1056
890
def Approve(self, value):
1057
891
self.approve(value)
1058
892
1059
893
# CheckedOK - method
1060
894
@dbus.service.method(_interface)
1061
895
def CheckedOK(self):
1062
self.checked_ok()
896
return self.checked_ok()
1063
897
1064
898
# Enable - method
1065
899
@dbus.service.method(_interface)
1087
921
## Properties
1088
922
1089
923
# ApprovalPending - property
1090
@dbus_service_property(_interface, signature="b", access="read")
924
@dbus_service_property(_interface, signature=u"b", access=u"read")
1091
925
def ApprovalPending_dbus_property(self):
1092
926
return dbus.Boolean(bool(self.approvals_pending))
1093
927
1094
928
# ApprovedByDefault - property
1095
@dbus_service_property(_interface, signature="b",
1096
access="readwrite")
929
@dbus_service_property(_interface, signature=u"b",
930
access=u"readwrite")
1097
931
def ApprovedByDefault_dbus_property(self, value=None):
1098
932
if value is None: # get
1099
933
return dbus.Boolean(self.approved_by_default)
1100
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))
1101
938
1102
939
# ApprovalDelay - property
1103
@dbus_service_property(_interface, signature="t",
1104
access="readwrite")
940
@dbus_service_property(_interface, signature=u"t",
941
access=u"readwrite")
1105
942
def ApprovalDelay_dbus_property(self, value=None):
1106
943
if value is None: # get
1107
944
return dbus.UInt64(self.approval_delay_milliseconds())
1108
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))
1109
949
1110
950
# ApprovalDuration - property
1111
@dbus_service_property(_interface, signature="t",
1112
access="readwrite")
951
@dbus_service_property(_interface, signature=u"t",
952
access=u"readwrite")
1113
953
def ApprovalDuration_dbus_property(self, value=None):
1114
954
if value is None: # get
1115
return dbus.UInt64(_timedelta_to_milliseconds(
955
return dbus.UInt64(self._timedelta_to_milliseconds(
1116
956
self.approval_duration))
1117
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))
1118
961
1119
962
# Name - property
1120
@dbus_service_property(_interface, signature="s", access="read")
963
@dbus_service_property(_interface, signature=u"s", access=u"read")
1121
964
def Name_dbus_property(self):
1122
965
return dbus.String(self.name)
1123
966
1124
967
# Fingerprint - property
1125
@dbus_service_property(_interface, signature="s", access="read")
968
@dbus_service_property(_interface, signature=u"s", access=u"read")
1126
969
def Fingerprint_dbus_property(self):
1127
970
return dbus.String(self.fingerprint)
1128
971
1129
972
# Host - property
1130
@dbus_service_property(_interface, signature="s",
1131
access="readwrite")
973
@dbus_service_property(_interface, signature=u"s",
974
access=u"readwrite")
1132
975
def Host_dbus_property(self, value=None):
1133
976
if value is None: # get
1134
977
return dbus.String(self.host)
1135
978
self.host = value
979
# Emit D-Bus signal
980
self.PropertyChanged(dbus.String(u"Host"),
981
dbus.String(value, variant_level=1))
1136
982
1137
983
# Created - property
1138
@dbus_service_property(_interface, signature="s", access="read")
984
@dbus_service_property(_interface, signature=u"s", access=u"read")
1139
985
def Created_dbus_property(self):
1140
return dbus.String(datetime_to_dbus(self.created))
986
return dbus.String(self._datetime_to_dbus(self.created))
1141
987
1142
988
# LastEnabled - property
1143
@dbus_service_property(_interface, signature="s", access="read")
989
@dbus_service_property(_interface, signature=u"s", access=u"read")
1144
990
def LastEnabled_dbus_property(self):
1145
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))
1146
994
1147
995
# Enabled - property
1148
@dbus_service_property(_interface, signature="b",
1149
access="readwrite")
996
@dbus_service_property(_interface, signature=u"b",
997
access=u"readwrite")
1150
998
def Enabled_dbus_property(self, value=None):
1151
999
if value is None: # get
1152
1000
return dbus.Boolean(self.enabled)
1156
1004
self.disable()
1157
1005
1158
1006
# LastCheckedOK - property
1159
@dbus_service_property(_interface, signature="s",
1160
access="readwrite")
1007
@dbus_service_property(_interface, signature=u"s",
1008
access=u"readwrite")
1161
1009
def LastCheckedOK_dbus_property(self, value=None):
1162
1010
if value is not None:
1163
1011
self.checked_ok()
1164
1012
return
1165
return datetime_to_dbus(self.last_checked_ok)
1166
1167
# Expires - property
1168
@dbus_service_property(_interface, signature="s", access="read")
1169
def Expires_dbus_property(self):
1170
return datetime_to_dbus(self.expires)
1171
1172
# LastApprovalRequest - property
1173
@dbus_service_property(_interface, signature="s", access="read")
1174
def LastApprovalRequest_dbus_property(self):
1175
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))
1176
1017
1177
1018
# Timeout - property
1178
@dbus_service_property(_interface, signature="t",
1179
access="readwrite")
1019
@dbus_service_property(_interface, signature=u"t",
1020
access=u"readwrite")
1180
1021
def Timeout_dbus_property(self, value=None):
1181
1022
if value is None: # get
1182
1023
return dbus.UInt64(self.timeout_milliseconds())
1183
1024
self.timeout = datetime.timedelta(0, 0, 0, value)
1184
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:
1185
1029
return
1186
1030
# Reschedule timeout
1187
1031
gobject.source_remove(self.disable_initiator_tag)
1188
1032
self.disable_initiator_tag = None
1189
self.expires = None
1190
1033
time_to_die = (self.
1191
1034
_timedelta_to_milliseconds((self
1192
1035
.last_checked_ok
1197
1040
# The timeout has passed
1198
1041
self.disable()
1199
1042
else:
1200
self.expires = (datetime.datetime.utcnow()
1201
+ datetime.timedelta(milliseconds =
1202
time_to_die))
1203
1043
self.disable_initiator_tag = (gobject.timeout_add
1204
1044
(time_to_die, self.disable))
1205
1045
1206
# ExtendedTimeout - property
1207
@dbus_service_property(_interface, signature="t",
1208
access="readwrite")
1209
def ExtendedTimeout_dbus_property(self, value=None):
1210
if value is None: # get
1211
return dbus.UInt64(self.extended_timeout_milliseconds())
1212
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1213
1214
1046
# Interval - property
1215
@dbus_service_property(_interface, signature="t",
1216
access="readwrite")
1047
@dbus_service_property(_interface, signature=u"t",
1048
access=u"readwrite")
1217
1049
def Interval_dbus_property(self, value=None):
1218
1050
if value is None: # get
1219
1051
return dbus.UInt64(self.interval_milliseconds())
1220
1052
self.interval = datetime.timedelta(0, 0, 0, value)
1221
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:
1222
1057
return
1223
1058
# Reschedule checker run
1224
1059
gobject.source_remove(self.checker_initiator_tag)
1225
1060
self.checker_initiator_tag = (gobject.timeout_add
1226
1061
(value, self.start_checker))
1227
1062
self.start_checker() # Start one now, too
1228
1063
1229
1064
# Checker - property
1230
@dbus_service_property(_interface, signature="s",
1231
access="readwrite")
1065
@dbus_service_property(_interface, signature=u"s",
1066
access=u"readwrite")
1232
1067
def Checker_dbus_property(self, value=None):
1233
1068
if value is None: # get
1234
1069
return dbus.String(self.checker_command)
1235
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))
1236
1075
1237
1076
# CheckerRunning - property
1238
@dbus_service_property(_interface, signature="b",
1239
access="readwrite")
1077
@dbus_service_property(_interface, signature=u"b",
1078
access=u"readwrite")
1240
1079
def CheckerRunning_dbus_property(self, value=None):
1241
1080
if value is None: # get
1242
1081
return dbus.Boolean(self.checker is not None)
1246
1085
self.stop_checker()
1247
1086
1248
1087
# ObjectPath - property
1249
@dbus_service_property(_interface, signature="o", access="read")
1088
@dbus_service_property(_interface, signature=u"o", access=u"read")
1250
1089
def ObjectPath_dbus_property(self):
1251
1090
return self.dbus_object_path # is already a dbus.ObjectPath
1252
1091
1253
1092
# Secret = property
1254
@dbus_service_property(_interface, signature="ay",
1255
access="write", byte_arrays=True)
1093
@dbus_service_property(_interface, signature=u"ay",
1094
access=u"write", byte_arrays=True)
1256
1095
def Secret_dbus_property(self, value):
1257
1096
self.secret = str(value)
1258
1097
1265
1104
self._pipe.send(('init', fpr, address))
1266
1105
if not self._pipe.recv():
1267
1106
raise KeyError()
1268
1107
1269
1108
def __getattribute__(self, name):
1270
1109
if(name == '_pipe'):
1271
1110
return super(ProxyClient, self).__getattribute__(name)
1278
1117
self._pipe.send(('funcall', name, args, kwargs))
1279
1118
return self._pipe.recv()[1]
1280
1119
return func
1281
1120
1282
1121
def __setattr__(self, name, value):
1283
1122
if(name == '_pipe'):
1284
1123
return super(ProxyClient, self).__setattr__(name, value)
1285
1124
self._pipe.send(('setattr', name, value))
1286
1125
1287
class ClientDBusTransitional(ClientDBus):
1288
__metaclass__ = AlternateDBusNamesMetaclass
1289
1126
1290
1127
class ClientHandler(socketserver.BaseRequestHandler, object):
1291
1128
"""A class to handle client connections.
1295
1132
1296
1133
def handle(self):
1297
1134
with contextlib.closing(self.server.child_pipe) as child_pipe:
1298
logger.info("TCP connection from: %s",
1135
logger.info(u"TCP connection from: %s",
1299
1136
unicode(self.client_address))
1300
logger.debug("Pipe FD: %d",
1137
logger.debug(u"Pipe FD: %d",
1301
1138
self.server.child_pipe.fileno())
1302
1139
1303
1140
session = (gnutls.connection
1304
1141
.ClientSession(self.request,
1305
1142
gnutls.connection
1306
1143
.X509Credentials()))
1307
1144
1308
1145
# Note: gnutls.connection.X509Credentials is really a
1309
1146
# generic GnuTLS certificate credentials object so long as
1310
1147
# no X.509 keys are added to it. Therefore, we can use it
1311
1148
# here despite using OpenPGP certificates.
1312
1313
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1314
# "+AES-256-CBC", "+SHA1",
1315
# "+COMP-NULL", "+CTYPE-OPENPGP",
1316
# "+DHE-DSS"))
1149
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"))
1317
1154
# Use a fallback default, since this MUST be set.
1318
1155
priority = self.server.gnutls_priority
1319
1156
if priority is None:
1320
priority = "NORMAL"
1157
priority = u"NORMAL"
1321
1158
(gnutls.library.functions
1322
1159
.gnutls_priority_set_direct(session._c_object,
1323
1160
priority, None))
1324
1161
1325
1162
# Start communication using the Mandos protocol
1326
1163
# Get protocol number
1327
1164
line = self.request.makefile().readline()
1328
logger.debug("Protocol version: %r", line)
1165
logger.debug(u"Protocol version: %r", line)
1329
1166
try:
1330
1167
if int(line.strip().split()[0]) > 1:
1331
1168
raise RuntimeError
1332
except (ValueError, IndexError, RuntimeError) as error:
1333
logger.error("Unknown protocol version: %s", error)
1169
except (ValueError, IndexError, RuntimeError), error:
1170
logger.error(u"Unknown protocol version: %s", error)
1334
1171
return
1335
1172
1336
1173
# Start GnuTLS connection
1337
1174
try:
1338
1175
session.handshake()
1339
except gnutls.errors.GNUTLSError as error:
1340
logger.warning("Handshake failed: %s", error)
1176
except gnutls.errors.GNUTLSError, error:
1177
logger.warning(u"Handshake failed: %s", error)
1341
1178
# Do not run session.bye() here: the session is not
1342
1179
# established. Just abandon the request.
1343
1180
return
1344
logger.debug("Handshake succeeded")
1345
1181
logger.debug(u"Handshake succeeded")
1182
1346
1183
approval_required = False
1347
1184
try:
1348
1185
try:
1349
1186
fpr = self.fingerprint(self.peer_certificate
1350
1187
(session))
1351
except (TypeError,
1352
gnutls.errors.GNUTLSError) as error:
1353
logger.warning("Bad certificate: %s", error)
1188
except (TypeError, gnutls.errors.GNUTLSError), error:
1189
logger.warning(u"Bad certificate: %s", error)
1354
1190
return
1355
logger.debug("Fingerprint: %s", fpr)
1356
1191
logger.debug(u"Fingerprint: %s", fpr)
1192
1357
1193
try:
1358
1194
client = ProxyClient(child_pipe, fpr,
1359
1195
self.client_address)
1367
1203
1368
1204
while True:
1369
1205
if not client.enabled:
1370
logger.info("Client %s is disabled",
1206
logger.warning(u"Client %s is disabled",
1371
1207
client.name)
1372
1208
if self.server.use_dbus:
1373
1209
# Emit D-Bus signal
1374
client.Rejected("Disabled")
1210
client.Rejected("Disabled")
1375
1211
return
1376
1212
1377
1213
if client._approved or not client.approval_delay:
1378
1214
#We are approved or approval is disabled
1379
1215
break
1380
1216
elif client._approved is None:
1381
logger.info("Client %s needs approval",
1217
logger.info(u"Client %s needs approval",
1382
1218
client.name)
1383
1219
if self.server.use_dbus:
1384
1220
# Emit D-Bus signal
1386
1222
client.approval_delay_milliseconds(),
1387
1223
client.approved_by_default)
1388
1224
else:
1389
logger.warning("Client %s was not approved",
1225
logger.warning(u"Client %s was not approved",
1390
1226
client.name)
1391
1227
if self.server.use_dbus:
1392
1228
# Emit D-Bus signal
1394
1230
return
1395
1231
1396
1232
#wait until timeout or approved
1397
#x = float(client
1398
# ._timedelta_to_milliseconds(delay))
1233
#x = float(client._timedelta_to_milliseconds(delay))
1399
1234
time = datetime.datetime.now()
1400
1235
client.changedstate.acquire()
1401
(client.changedstate.wait
1402
(float(client._timedelta_to_milliseconds(delay)
1403
/ 1000)))
1236
client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1404
1237
client.changedstate.release()
1405
1238
time2 = datetime.datetime.now()
1406
1239
if (time2 - time) >= delay:
1410
1243
client.name)
1411
1244
if self.server.use_dbus:
1412
1245
# Emit D-Bus signal
1413
client.Rejected("Approval timed out")
1246
client.Rejected("Timed out")
1414
1247
return
1415
1248
else:
1416
1249
break
1421
1254
while sent_size < len(client.secret):
1422
1255
try:
1423
1256
sent = session.send(client.secret[sent_size:])
1424
except gnutls.errors.GNUTLSError as error:
1257
except (gnutls.errors.GNUTLSError), error:
1425
1258
logger.warning("gnutls send failed")
1426
1259
return
1427
logger.debug("Sent: %d, remaining: %d",
1260
logger.debug(u"Sent: %d, remaining: %d",
1428
1261
sent, len(client.secret)
1429
1262
- (sent_size + sent))
1430
1263
sent_size += sent
1431
1432
logger.info("Sending secret to %s", client.name)
1264
1265
logger.info(u"Sending secret to %s", client.name)
1433
1266
# bump the timeout as if seen
1434
client.checked_ok(client.extended_timeout)
1267
client.checked_ok()
1435
1268
if self.server.use_dbus:
1436
1269
# Emit D-Bus signal
1437
1270
client.GotSecret()
1441
1274
client.approvals_pending -= 1
1442
1275
try:
1443
1276
session.bye()
1444
except gnutls.errors.GNUTLSError as error:
1277
except (gnutls.errors.GNUTLSError), error:
1445
1278
logger.warning("GnuTLS bye failed")
1446
1279
1447
1280
@staticmethod
1458
1291
.gnutls_certificate_get_peers
1459
1292
(session._c_object, ctypes.byref(list_size)))
1460
1293
if not bool(cert_list) and list_size.value != 0:
1461
raise gnutls.errors.GNUTLSError("error getting peer"
1462
" certificate")
1294
raise gnutls.errors.GNUTLSError(u"error getting peer"
1295
u" certificate")
1463
1296
if list_size.value == 0:
1464
1297
return None
1465
1298
cert = cert_list[0]
1491
1324
if crtverify.value != 0:
1492
1325
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1493
1326
raise (gnutls.errors.CertificateSecurityError
1494
("Verify failed"))
1327
(u"Verify failed"))
1495
1328
# New buffer for the fingerprint
1496
1329
buf = ctypes.create_string_buffer(20)
1497
1330
buf_len = ctypes.c_size_t()
1504
1337
# Convert the buffer to a Python bytestring
1505
1338
fpr = ctypes.string_at(buf, buf_len.value)
1506
1339
# Convert the bytestring to hexadecimal notation
1507
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1340
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1508
1341
return hex_fpr
1509
1342
1510
1343
1522
1355
multiprocessing.Process(target = self.sub_process_main,
1523
1356
args = (request, address)).start()
1524
1357
1525
1526
1358
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1527
1359
""" adds a pipe to the MixIn """
1528
1360
def process_request(self, request, client_address):
1531
1363
This function creates a new pipe in self.pipe
1532
1364
"""
1533
1365
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1534
1366
1535
1367
super(MultiprocessingMixInWithPipe,
1536
1368
self).process_request(request, client_address)
1537
1369
self.child_pipe.close()
1538
1370
self.add_pipe(parent_pipe)
1539
1371
1540
1372
def add_pipe(self, parent_pipe):
1541
1373
"""Dummy function; override as necessary"""
1542
raise NotImplementedError
1543
1374
pass
1544
1375
1545
1376
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1546
1377
socketserver.TCPServer, object):
1564
1395
bind to an address or port if they were not specified."""
1565
1396
if self.interface is not None:
1566
1397
if SO_BINDTODEVICE is None:
1567
logger.error("SO_BINDTODEVICE does not exist;"
1568
" cannot bind to interface %s",
1398
logger.error(u"SO_BINDTODEVICE does not exist;"
1399
u" cannot bind to interface %s",
1569
1400
self.interface)
1570
1401
else:
1571
1402
try:
1572
1403
self.socket.setsockopt(socket.SOL_SOCKET,
1573
1404
SO_BINDTODEVICE,
1574
1405
str(self.interface
1575
+ '\0'))
1576
except socket.error as error:
1406
+ u'\0'))
1407
except socket.error, error:
1577
1408
if error[0] == errno.EPERM:
1578
logger.error("No permission to"
1579
" bind to interface %s",
1409
logger.error(u"No permission to"
1410
u" bind to interface %s",
1580
1411
self.interface)
1581
1412
elif error[0] == errno.ENOPROTOOPT:
1582
logger.error("SO_BINDTODEVICE not available;"
1583
" cannot bind to interface %s",
1413
logger.error(u"SO_BINDTODEVICE not available;"
1414
u" cannot bind to interface %s",
1584
1415
self.interface)
1585
1416
else:
1586
1417
raise
1588
1419
if self.server_address[0] or self.server_address[1]:
1589
1420
if not self.server_address[0]:
1590
1421
if self.address_family == socket.AF_INET6:
1591
any_address = "::" # in6addr_any
1422
any_address = u"::" # in6addr_any
1592
1423
else:
1593
1424
any_address = socket.INADDR_ANY
1594
1425
self.server_address = (any_address,
1638
1469
gobject.io_add_watch(parent_pipe.fileno(),
1639
1470
gobject.IO_IN | gobject.IO_HUP,
1640
1471
functools.partial(self.handle_ipc,
1641
parent_pipe =
1642
parent_pipe))
1472
parent_pipe = parent_pipe))
1643
1473
1644
1474
def handle_ipc(self, source, condition, parent_pipe=None,
1645
1475
client_object=None):
1646
1476
condition_names = {
1647
gobject.IO_IN: "IN", # There is data to read.
1648
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
1649
1479
# blocking).
1650
gobject.IO_PRI: "PRI", # There is urgent data to read.
1651
gobject.IO_ERR: "ERR", # Error condition.
1652
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
1653
1483
# broken, usually for pipes and
1654
1484
# sockets).
1655
1485
}
1657
1487
for cond, name in
1658
1488
condition_names.iteritems()
1659
1489
if cond & condition)
1490
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1491
conditions_string)
1492
1660
1493
# error or the other end of multiprocessing.Pipe has closed
1661
1494
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
1662
1495
return False
1663
1496
1664
1497
# Read a request from the child
1665
1498
request = parent_pipe.recv()
1499
logger.debug(u"IPC request: %s", repr(request))
1666
1500
command = request[0]
1667
1501
1668
1502
if command == 'init':
1674
1508
client = c
1675
1509
break
1676
1510
else:
1677
logger.info("Client not found for fingerprint: %s, ad"
1678
"dress: %s", fpr, address)
1511
logger.warning(u"Client not found for fingerprint: %s, ad"
1512
u"dress: %s", fpr, address)
1679
1513
if self.use_dbus:
1680
1514
# Emit D-Bus signal
1681
mandos_dbus_service.ClientNotFound(fpr,
1682
address[0])
1515
mandos_dbus_service.ClientNotFound(fpr, address)
1683
1516
parent_pipe.send(False)
1684
1517
return False
1685
1518
1686
1519
gobject.io_add_watch(parent_pipe.fileno(),
1687
1520
gobject.IO_IN | gobject.IO_HUP,
1688
1521
functools.partial(self.handle_ipc,
1689
parent_pipe =
1690
parent_pipe,
1691
client_object =
1692
client))
1522
parent_pipe = parent_pipe,
1523
client_object = client))
1693
1524
parent_pipe.send(True)
1694
# remove the old hook in favor of the new above hook on
1695
# same fileno
1525
# remove the old hook in favor of the new above hook on same fileno
1696
1526
return False
1697
1527
if command == 'funcall':
1698
1528
funcname = request[1]
1699
1529
args = request[2]
1700
1530
kwargs = request[3]
1701
1531
1702
parent_pipe.send(('data', getattr(client_object,
1703
funcname)(*args,
1704
**kwargs)))
1705
1532
parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
1533
1706
1534
if command == 'getattr':
1707
1535
attrname = request[1]
1708
1536
if callable(client_object.__getattribute__(attrname)):
1709
1537
parent_pipe.send(('function',))
1710
1538
else:
1711
parent_pipe.send(('data', client_object
1712
.__getattribute__(attrname)))
1539
parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1713
1540
1714
1541
if command == 'setattr':
1715
1542
attrname = request[1]
1716
1543
value = request[2]
1717
1544
setattr(client_object, attrname, value)
1718
1545
1719
1546
return True
1720
1547
1721
1548
1722
1549
def string_to_delta(interval):
1723
1550
"""Parse a string and return a datetime.timedelta
1724
1551
1725
>>> string_to_delta('7d')
1552
>>> string_to_delta(u'7d')
1726
1553
datetime.timedelta(7)
1727
>>> string_to_delta('60s')
1554
>>> string_to_delta(u'60s')
1728
1555
datetime.timedelta(0, 60)
1729
>>> string_to_delta('60m')
1556
>>> string_to_delta(u'60m')
1730
1557
datetime.timedelta(0, 3600)
1731
>>> string_to_delta('24h')
1558
>>> string_to_delta(u'24h')
1732
1559
datetime.timedelta(1)
1733
>>> string_to_delta('1w')
1560
>>> string_to_delta(u'1w')
1734
1561
datetime.timedelta(7)
1735
>>> string_to_delta('5m 30s')
1562
>>> string_to_delta(u'5m 30s')
1736
1563
datetime.timedelta(0, 330)
1737
1564
"""
1738
1565
timevalue = datetime.timedelta(0)
1740
1567
try:
1741
1568
suffix = unicode(s[-1])
1742
1569
value = int(s[:-1])
1743
if suffix == "d":
1570
if suffix == u"d":
1744
1571
delta = datetime.timedelta(value)
1745
elif suffix == "s":
1572
elif suffix == u"s":
1746
1573
delta = datetime.timedelta(0, value)
1747
elif suffix == "m":
1574
elif suffix == u"m":
1748
1575
delta = datetime.timedelta(0, 0, 0, 0, value)
1749
elif suffix == "h":
1576
elif suffix == u"h":
1750
1577
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1751
elif suffix == "w":
1578
elif suffix == u"w":
1752
1579
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1753
1580
else:
1754
raise ValueError("Unknown suffix %r" % suffix)
1755
except (ValueError, IndexError) as e:
1756
raise ValueError(*(e.args))
1581
raise ValueError(u"Unknown suffix %r" % suffix)
1582
except (ValueError, IndexError), e:
1583
raise ValueError(e.message)
1757
1584
timevalue += delta
1758
1585
return timevalue
1759
1586
1765
1592
global if_nametoindex
1766
1593
try:
1767
1594
if_nametoindex = (ctypes.cdll.LoadLibrary
1768
(ctypes.util.find_library("c"))
1595
(ctypes.util.find_library(u"c"))
1769
1596
.if_nametoindex)
1770
1597
except (OSError, AttributeError):
1771
logger.warning("Doing if_nametoindex the hard way")
1598
logger.warning(u"Doing if_nametoindex the hard way")
1772
1599
def if_nametoindex(interface):
1773
1600
"Get an interface index the hard way, i.e. using fcntl()"
1774
1601
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1775
1602
with contextlib.closing(socket.socket()) as s:
1776
1603
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1777
struct.pack(str("16s16x"),
1604
struct.pack(str(u"16s16x"),
1778
1605
interface))
1779
interface_index = struct.unpack(str("I"),
1606
interface_index = struct.unpack(str(u"I"),
1780
1607
ifreq[16:20])[0]
1781
1608
return interface_index
1782
1609
return if_nametoindex(interface)
1790
1617
sys.exit()
1791
1618
os.setsid()
1792
1619
if not nochdir:
1793
os.chdir("/")
1620
os.chdir(u"/")
1794
1621
if os.fork():
1795
1622
sys.exit()
1796
1623
if not noclose:
1798
1625
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1799
1626
if not stat.S_ISCHR(os.fstat(null).st_mode):
1800
1627
raise OSError(errno.ENODEV,
1801
"%s not a character device"
1628
u"%s not a character device"
1802
1629
% os.path.devnull)
1803
1630
os.dup2(null, sys.stdin.fileno())
1804
1631
os.dup2(null, sys.stdout.fileno())
1812
1639
##################################################################
1813
1640
# Parsing of options, both command line and config file
1814
1641
1815
parser = argparse.ArgumentParser()
1816
parser.add_argument("-v", "--version", action="version",
1817
version = "%%(prog)s %s" % version,
1818
help="show version number and exit")
1819
parser.add_argument("-i", "--interface", metavar="IF",
1820
help="Bind to interface IF")
1821
parser.add_argument("-a", "--address",
1822
help="Address to listen for requests on")
1823
parser.add_argument("-p", "--port", type=int,
1824
help="Port number to receive requests on")
1825
parser.add_argument("--check", action="store_true",
1826
help="Run self-test")
1827
parser.add_argument("--debug", action="store_true",
1828
help="Debug mode; run in foreground and log"
1829
" to terminal")
1830
parser.add_argument("--debuglevel", metavar="LEVEL",
1831
help="Debug level for stdout output")
1832
parser.add_argument("--priority", help="GnuTLS"
1833
" priority string (see GnuTLS documentation)")
1834
parser.add_argument("--servicename",
1835
metavar="NAME", help="Zeroconf service name")
1836
parser.add_argument("--configdir",
1837
default="/etc/mandos", metavar="DIR",
1838
help="Directory to search for configuration"
1839
" files")
1840
parser.add_argument("--no-dbus", action="store_false",
1841
dest="use_dbus", help="Do not provide D-Bus"
1842
" system bus interface")
1843
parser.add_argument("--no-ipv6", action="store_false",
1844
dest="use_ipv6", help="Do not use IPv6")
1845
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]
1846
1670
1847
1671
if options.check:
1848
1672
import doctest
1850
1674
sys.exit()
1851
1675
1852
1676
# Default values for config file for server-global settings
1853
server_defaults = { "interface": "",
1854
"address": "",
1855
"port": "",
1856
"debug": "False",
1857
"priority":
1858
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1859
"servicename": "Mandos",
1860
"use_dbus": "True",
1861
"use_ipv6": "True",
1862
"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"",
1863
1687
}
1864
1688
1865
1689
# Parse config file for server-global settings
1866
1690
server_config = configparser.SafeConfigParser(server_defaults)
1867
1691
del server_defaults
1868
1692
server_config.read(os.path.join(options.configdir,
1869
"mandos.conf"))
1693
u"mandos.conf"))
1870
1694
# Convert the SafeConfigParser object to a dict
1871
1695
server_settings = server_config.defaults()
1872
1696
# Use the appropriate methods on the non-string config options
1873
for option in ("debug", "use_dbus", "use_ipv6"):
1874
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",
1875
1699
option)
1876
1700
if server_settings["port"]:
1877
server_settings["port"] = server_config.getint("DEFAULT",
1878
"port")
1701
server_settings["port"] = server_config.getint(u"DEFAULT",
1702
u"port")
1879
1703
del server_config
1880
1704
1881
1705
# Override the settings from the config file with command line
1882
1706
# options, if set.
1883
for option in ("interface", "address", "port", "debug",
1884
"priority", "servicename", "configdir",
1885
"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"):
1886
1710
value = getattr(options, option)
1887
1711
if value is not None:
1888
1712
server_settings[option] = value
1896
1720
##################################################################
1897
1721
1898
1722
# For convenience
1899
debug = server_settings["debug"]
1900
debuglevel = server_settings["debuglevel"]
1901
use_dbus = server_settings["use_dbus"]
1902
use_ipv6 = server_settings["use_ipv6"]
1903
1904
if server_settings["servicename"] != "Mandos":
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"]
1727
1728
if server_settings[u"servicename"] != u"Mandos":
1905
1729
syslogger.setFormatter(logging.Formatter
1906
('Mandos (%s) [%%(process)d]:'
1907
' %%(levelname)s: %%(message)s'
1908
% server_settings["servicename"]))
1730
(u'Mandos (%s) [%%(process)d]:'
1731
u' %%(levelname)s: %%(message)s'
1732
% server_settings[u"servicename"]))
1909
1733
1910
1734
# Parse config file with clients
1911
client_defaults = { "timeout": "5m",
1912
"extended_timeout": "15m",
1913
"interval": "2m",
1914
"checker": "fping -q -- %%(host)s",
1915
"host": "",
1916
"approval_delay": "0s",
1917
"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",
1918
1741
}
1919
1742
client_config = configparser.SafeConfigParser(client_defaults)
1920
client_config.read(os.path.join(server_settings["configdir"],
1921
"clients.conf"))
1743
client_config.read(os.path.join(server_settings[u"configdir"],
1744
u"clients.conf"))
1922
1745
1923
1746
global mandos_dbus_service
1924
1747
mandos_dbus_service = None
1925
1748
1926
tcp_server = MandosServer((server_settings["address"],
1927
server_settings["port"]),
1749
tcp_server = MandosServer((server_settings[u"address"],
1750
server_settings[u"port"]),
1928
1751
ClientHandler,
1929
interface=(server_settings["interface"]
1752
interface=(server_settings[u"interface"]
1930
1753
or None),
1931
1754
use_ipv6=use_ipv6,
1932
1755
gnutls_priority=
1933
server_settings["priority"],
1756
server_settings[u"priority"],
1934
1757
use_dbus=use_dbus)
1935
if not debug:
1936
pidfilename = "/var/run/mandos.pid"
1937
try:
1938
pidfile = open(pidfilename, "w")
1939
except IOError:
1940
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)
1941
1763
1942
1764
try:
1943
uid = pwd.getpwnam("_mandos").pw_uid
1944
gid = pwd.getpwnam("_mandos").pw_gid
1765
uid = pwd.getpwnam(u"_mandos").pw_uid
1766
gid = pwd.getpwnam(u"_mandos").pw_gid
1945
1767
except KeyError:
1946
1768
try:
1947
uid = pwd.getpwnam("mandos").pw_uid
1948
gid = pwd.getpwnam("mandos").pw_gid
1769
uid = pwd.getpwnam(u"mandos").pw_uid
1770
gid = pwd.getpwnam(u"mandos").pw_gid
1949
1771
except KeyError:
1950
1772
try:
1951
uid = pwd.getpwnam("nobody").pw_uid
1952
gid = pwd.getpwnam("nobody").pw_gid
1773
uid = pwd.getpwnam(u"nobody").pw_uid
1774
gid = pwd.getpwnam(u"nobody").pw_gid
1953
1775
except KeyError:
1954
1776
uid = 65534
1955
1777
gid = 65534
1956
1778
try:
1957
1779
os.setgid(gid)
1958
1780
os.setuid(uid)
1959
except OSError as error:
1781
except OSError, error:
1960
1782
if error[0] != errno.EPERM:
1961
1783
raise error
1962
1784
1967
1789
level = getattr(logging, debuglevel.upper())
1968
1790
syslogger.setLevel(level)
1969
1791
console.setLevel(level)
1970
1792
1971
1793
if debug:
1972
1794
# Enable all possible GnuTLS debugging
1973
1795
1977
1799
1978
1800
@gnutls.library.types.gnutls_log_func
1979
1801
def debug_gnutls(level, string):
1980
logger.debug("GnuTLS: %s", string[:-1])
1802
logger.debug(u"GnuTLS: %s", string[:-1])
1981
1803
1982
1804
(gnutls.library.functions
1983
1805
.gnutls_global_set_log_function(debug_gnutls))
1991
1813
# No console logging
1992
1814
logger.removeHandler(console)
1993
1815
1994
# Need to fork before connecting to D-Bus
1995
if not debug:
1996
# Close all input and output, do double fork, etc.
1997
daemon()
1998
1816
1999
1817
global main_loop
2000
1818
# From the Avahi example code
2004
1822
# End of Avahi example code
2005
1823
if use_dbus:
2006
1824
try:
2007
bus_name = dbus.service.BusName("se.recompile.Mandos",
1825
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2008
1826
bus, do_not_queue=True)
2009
old_bus_name = (dbus.service.BusName
2010
("se.bsnet.fukt.Mandos", bus,
2011
do_not_queue=True))
2012
except dbus.exceptions.NameExistsException as e:
2013
logger.error(unicode(e) + ", disabling D-Bus")
1827
except dbus.exceptions.NameExistsException, e:
1828
logger.error(unicode(e) + u", disabling D-Bus")
2014
1829
use_dbus = False
2015
server_settings["use_dbus"] = False
1830
server_settings[u"use_dbus"] = False
2016
1831
tcp_server.use_dbus = False
2017
1832
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2018
service = AvahiService(name = server_settings["servicename"],
2019
servicetype = "_mandos._tcp",
1833
service = AvahiService(name = server_settings[u"servicename"],
1834
servicetype = u"_mandos._tcp",
2020
1835
protocol = protocol, bus = bus)
2021
1836
if server_settings["interface"]:
2022
1837
service.interface = (if_nametoindex
2023
(str(server_settings["interface"])))
2024
1838
(str(server_settings[u"interface"])))
1839
1840
if not debug:
1841
# Close all input and output, do double fork, etc.
1842
daemon()
1843
2025
1844
global multiprocessing_manager
2026
1845
multiprocessing_manager = multiprocessing.Manager()
2027
1846
2028
1847
client_class = Client
2029
1848
if use_dbus:
2030
client_class = functools.partial(ClientDBusTransitional,
2031
bus = bus)
1849
client_class = functools.partial(ClientDBus, bus = bus)
2032
1850
def client_config_items(config, section):
2033
1851
special_settings = {
2034
1852
"approved_by_default":
2047
1865
client_config, section)))
2048
1866
for section in client_config.sections()))
2049
1867
if not tcp_server.clients:
2050
logger.warning("No clients defined")
1868
logger.warning(u"No clients defined")
2051
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
2052
1883
if not debug:
2053
try:
2054
with pidfile:
2055
pid = os.getpid()
2056
pidfile.write(str(pid) + "\n".encode("utf-8"))
2057
del pidfile
2058
except IOError:
2059
logger.error("Could not write to file %r with PID %d",
2060
pidfilename, pid)
2061
except NameError:
2062
# "pidfile" was never created
2063
pass
2064
del pidfilename
2065
2066
1884
signal.signal(signal.SIGINT, signal.SIG_IGN)
2067
2068
1885
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2069
1886
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2070
1887
2072
1889
class MandosDBusService(dbus.service.Object):
2073
1890
"""A D-Bus proxy object"""
2074
1891
def __init__(self):
2075
dbus.service.Object.__init__(self, bus, "/")
2076
_interface = "se.recompile.Mandos"
1892
dbus.service.Object.__init__(self, bus, u"/")
1893
_interface = u"se.bsnet.fukt.Mandos"
2077
1894
2078
@dbus.service.signal(_interface, signature="o")
1895
@dbus.service.signal(_interface, signature=u"o")
2079
1896
def ClientAdded(self, objpath):
2080
1897
"D-Bus signal"
2081
1898
pass
2082
1899
2083
@dbus.service.signal(_interface, signature="ss")
1900
@dbus.service.signal(_interface, signature=u"ss")
2084
1901
def ClientNotFound(self, fingerprint, address):
2085
1902
"D-Bus signal"
2086
1903
pass
2087
1904
2088
@dbus.service.signal(_interface, signature="os")
1905
@dbus.service.signal(_interface, signature=u"os")
2089
1906
def ClientRemoved(self, objpath, name):
2090
1907
"D-Bus signal"
2091
1908
pass
2092
1909
2093
@dbus.service.method(_interface, out_signature="ao")
1910
@dbus.service.method(_interface, out_signature=u"ao")
2094
1911
def GetAllClients(self):
2095
1912
"D-Bus method"
2096
1913
return dbus.Array(c.dbus_object_path
2097
1914
for c in tcp_server.clients)
2098
1915
2099
1916
@dbus.service.method(_interface,
2100
out_signature="a{oa{sv}}")
1917
out_signature=u"a{oa{sv}}")
2101
1918
def GetAllClientsWithProperties(self):
2102
1919
"D-Bus method"
2103
1920
return dbus.Dictionary(
2104
((c.dbus_object_path, c.GetAll(""))
1921
((c.dbus_object_path, c.GetAll(u""))
2105
1922
for c in tcp_server.clients),
2106
signature="oa{sv}")
1923
signature=u"oa{sv}")
2107
1924
2108
@dbus.service.method(_interface, in_signature="o")
1925
@dbus.service.method(_interface, in_signature=u"o")
2109
1926
def RemoveClient(self, object_path):
2110
1927
"D-Bus method"
2111
1928
for c in tcp_server.clients:
2121
1938
2122
1939
del _interface
2123
1940
2124
class MandosDBusServiceTransitional(MandosDBusService):
2125
__metaclass__ = AlternateDBusNamesMetaclass
2126
mandos_dbus_service = MandosDBusServiceTransitional()
1941
mandos_dbus_service = MandosDBusService()
2127
1942
2128
1943
def cleanup():
2129
1944
"Cleanup function; run on exit"
2138
1953
client.disable(quiet=True)
2139
1954
if use_dbus:
2140
1955
# Emit D-Bus signal
2141
mandos_dbus_service.ClientRemoved(client
2142
.dbus_object_path,
1956
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2143
1957
client.name)
2144
1958
2145
1959
atexit.register(cleanup)
2156
1970
# Find out what port we got
2157
1971
service.port = tcp_server.socket.getsockname()[1]
2158
1972
if use_ipv6:
2159
logger.info("Now listening on address %r, port %d,"
1973
logger.info(u"Now listening on address %r, port %d,"
2160
1974
" flowinfo %d, scope_id %d"
2161
1975
% tcp_server.socket.getsockname())
2162
1976
else: # IPv4
2163
logger.info("Now listening on address %r, port %d"
1977
logger.info(u"Now listening on address %r, port %d"
2164
1978
% tcp_server.socket.getsockname())
2165
1979
2166
1980
#service.interface = tcp_server.socket.getsockname()[3]
2169
1983
# From the Avahi example code
2170
1984
try:
2171
1985
service.activate()
2172
except dbus.exceptions.DBusException as error:
2173
logger.critical("DBusException: %s", error)
1986
except dbus.exceptions.DBusException, error:
1987
logger.critical(u"DBusException: %s", error)
2174
1988
cleanup()
2175
1989
sys.exit(1)
2176
1990
# End of Avahi example code
2180
1994
(tcp_server.handle_request
2181
1995
(*args[2:], **kwargs) or True))
2182
1996
2183
logger.debug("Starting main loop")
1997
logger.debug(u"Starting main loop")
2184
1998
main_loop.run()
2185
except AvahiError as error:
2186
logger.critical("AvahiError: %s", error)
1999
except AvahiError, error:
2000
logger.critical(u"AvahiError: %s", error)
2187
2001
cleanup()
2188
2002
sys.exit(1)
2189
2003
except KeyboardInterrupt:
2190
2004
if debug:
2191
print("", file=sys.stderr)
2192
logger.debug("Server received KeyboardInterrupt")
2193
logger.debug("Server exiting")
2005
print >> sys.stderr
2006
logger.debug(u"Server received KeyboardInterrupt")
2007
logger.debug(u"Server exiting")
2194
2008
# Must run before the D-Bus bus name gets deregistered
2195
2009
cleanup()
2196
2010
2197
2198
2011
if __name__ == '__main__':
2199
2012
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0