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- Committer: Teddy Hogeborn
- Date: 2009-12-27 03:35:58 UTC
- Revision ID: teddy@fukt.bsnet.se-20091227033558-y57wv1u4cls3i8kq
TODO file changes.
- files removed:
- DBUS-API
- debian/source
- files modified:
- .bzrignore
added
removed
mandos
11
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# "AvahiService" class, and some lines in "main".
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#
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# Everything else is
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# 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,
35
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 fcntl
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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.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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117
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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122
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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133
"""
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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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self.name)
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raise AvahiServiceError(u"Too many renames")
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self.name = self.server.GetAlternativeServiceName(self.name)
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logger.info(u"Changing Zeroconf service name to %r ...",
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unicode(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:
173
self.add()
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except dbus.exceptions.DBusException as error:
175
logger.critical("DBusException: %s", error)
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self.cleanup()
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os._exit(1)
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self.add()
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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"""
181
if self.entry_group_state_changed_match is not None:
182
self.entry_group_state_changed_match.remove()
183
self.entry_group_state_changed_match = None
184
170
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"""
188
self.remove()
189
174
if self.group is None:
190
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self.group = dbus.Interface(
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self.bus.get_object(avahi.DBUS_NAME,
192
177
self.server.EntryGroupNew()),
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avahi.DBUS_INTERFACE_ENTRY_GROUP)
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self.entry_group_state_changed_match = (
195
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)
182
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(
200
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self.interface,
207
192
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"""
210
logger.debug("Avahi entry group state change: %i", state)
195
logger.debug(u"Avahi state change: %i", state)
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212
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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:
215
logger.info("Zeroconf service name collision.")
200
logger.warning(u"Zeroconf service name collision.")
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self.rename()
217
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elif state == avahi.ENTRY_GROUP_FAILURE:
218
logger.critical("Avahi: Error in group state changed %s",
203
logger.critical(u"Avahi: Error in group state changed %s",
219
204
unicode(error))
220
raise AvahiGroupError("State changed: %s"
205
raise AvahiGroupError(u"State changed: %s"
221
206
% unicode(error))
222
207
def cleanup(self):
223
208
"""Derived from the Avahi example code"""
224
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if self.group is not None:
225
try:
226
self.group.Free()
227
except (dbus.exceptions.UnknownMethodException,
228
dbus.exceptions.DBusException) as e:
229
pass
210
self.group.Free()
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211
self.group = None
231
self.remove()
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def server_state_changed(self, state, error=None):
212
def server_state_changed(self, state):
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"""Derived from the Avahi example code"""
234
logger.debug("Avahi server state change: %i", state)
235
bad_states = { avahi.SERVER_INVALID:
236
"Zeroconf server invalid",
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avahi.SERVER_REGISTERING: None,
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avahi.SERVER_COLLISION:
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"Zeroconf server name collision",
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avahi.SERVER_FAILURE:
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"Zeroconf server failure" }
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if state in bad_states:
243
if bad_states[state] is not None:
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if error is None:
245
logger.error(bad_states[state])
246
else:
247
logger.error(bad_states[state] + ": %r", error)
248
self.cleanup()
214
if state == avahi.SERVER_COLLISION:
215
logger.error(u"Zeroconf server name collision")
216
self.remove()
249
217
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
223
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),
263
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avahi.DBUS_INTERFACE_SERVER)
264
self.server.connect_to_signal("StateChanged",
226
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())
267
229
268
230
269
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
231
class Client(object):
276
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"""A representation of a client host served by this server.
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233
278
234
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
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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
238
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
242
last_enabled: datetime.datetime(); (UTC)
243
enabled: bool()
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last_checked_ok: datetime.datetime(); (UTC) or None
245
timeout: datetime.timedelta(); How long from last_checked_ok
246
until this client is disabled
247
interval: datetime.timedelta(); How often to start a new checker
248
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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250
to see if the client lives.
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'None' if no process is running.
285
checker_callback_tag: a gobject event source tag, or None
286
checker_command: string; External command which is run to check
287
if client lives. %() expansions are done at
252
checker_initiator_tag: a gobject event source tag, or None
253
disable_initiator_tag: - '' -
254
checker_callback_tag: - '' -
255
checker_command: string; External command which is run to check if
256
client lives. %() expansions are done at
288
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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.
290
checker_initiator_tag: a gobject event source tag, or None
291
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)
294
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
297
uniquely identify the client
298
host: string; available for use by the checker command
299
interval: datetime.timedelta(); How often to start a new checker
300
last_approval_request: datetime.datetime(); (UTC) or None
301
last_checked_ok: datetime.datetime(); (UTC) or None
302
last_enabled: datetime.datetime(); (UTC)
303
name: string; from the config file, used in log messages and
304
D-Bus identifiers
305
secret: bytestring; sent verbatim (over TLS) to client
306
timeout: datetime.timedelta(); How long from last_checked_ok
307
until this client is disabled
308
extended_timeout: extra long timeout when password has been sent
309
runtime_expansions: Allowed attributes for runtime expansion.
310
expires: datetime.datetime(); time (UTC) when a client will be
311
disabled, or None
312
260
"""
313
261
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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")
262
@staticmethod
263
def _timedelta_to_milliseconds(td):
264
"Convert a datetime.timedelta() to milliseconds"
265
return ((td.days * 24 * 60 * 60 * 1000)
266
+ (td.seconds * 1000)
267
+ (td.microseconds // 1000))
318
268
319
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def timeout_milliseconds(self):
320
270
"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)
271
return self._timedelta_to_milliseconds(self.timeout)
326
272
327
273
def interval_milliseconds(self):
328
274
"Return the 'interval' attribute in milliseconds"
329
return _timedelta_to_milliseconds(self.interval)
330
331
def approval_delay_milliseconds(self):
332
return _timedelta_to_milliseconds(self.approval_delay)
275
return self._timedelta_to_milliseconds(self.interval)
333
276
334
277
def __init__(self, name = None, disable_hook=None, config=None):
335
278
"""Note: the 'checker' key in 'config' sets the
338
281
self.name = name
339
282
if config is None:
340
283
config = {}
341
logger.debug("Creating client %r", self.name)
284
logger.debug(u"Creating client %r", self.name)
342
285
# Uppercase and remove spaces from fingerprint for later
343
286
# comparison purposes with return value from the fingerprint()
344
287
# 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:
288
self.fingerprint = (config[u"fingerprint"].upper()
289
.replace(u" ", u""))
290
logger.debug(u" Fingerprint: %s", self.fingerprint)
291
if u"secret" in config:
292
self.secret = config[u"secret"].decode(u"base64")
293
elif u"secfile" in config:
351
294
with open(os.path.expanduser(os.path.expandvars
352
(config["secfile"])),
295
(config[u"secfile"])),
353
296
"rb") as secfile:
354
297
self.secret = secfile.read()
355
298
else:
356
raise TypeError("No secret or secfile for client %s"
299
raise TypeError(u"No secret or secfile for client %s"
357
300
% self.name)
358
self.host = config.get("host", "")
301
self.host = config.get(u"host", u"")
359
302
self.created = datetime.datetime.utcnow()
360
303
self.enabled = False
361
self.last_approval_request = None
362
304
self.last_enabled = None
363
305
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"])
306
self.timeout = string_to_delta(config[u"timeout"])
307
self.interval = string_to_delta(config[u"interval"])
368
308
self.disable_hook = disable_hook
369
309
self.checker = None
370
310
self.checker_initiator_tag = None
371
311
self.disable_initiator_tag = None
372
self.expires = None
373
312
self.checker_callback_tag = None
374
self.checker_command = config["checker"]
313
self.checker_command = config[u"checker"]
375
314
self.current_checker_command = None
376
315
self.last_connect = None
377
self._approved = None
378
self.approved_by_default = config.get("approved_by_default",
379
True)
380
self.approvals_pending = 0
381
self.approval_delay = string_to_delta(
382
config["approval_delay"])
383
self.approval_duration = string_to_delta(
384
config["approval_duration"])
385
self.changedstate = (multiprocessing_manager
386
.Condition(multiprocessing_manager
387
.Lock()))
388
389
def send_changedstate(self):
390
self.changedstate.acquire()
391
self.changedstate.notify_all()
392
self.changedstate.release()
393
316
394
317
def enable(self):
395
318
"""Start this client's checker and timeout hooks"""
396
if getattr(self, "enabled", False):
319
if getattr(self, u"enabled", False):
397
320
# Already enabled
398
321
return
399
self.send_changedstate()
322
self.last_enabled = datetime.datetime.utcnow()
400
323
# Schedule a new checker to be started an 'interval' from now,
401
324
# and every interval from then on.
402
325
self.checker_initiator_tag = (gobject.timeout_add
403
326
(self.interval_milliseconds(),
404
327
self.start_checker))
405
328
# Schedule a disable() when 'timeout' has passed
406
self.expires = datetime.datetime.utcnow() + self.timeout
407
329
self.disable_initiator_tag = (gobject.timeout_add
408
330
(self.timeout_milliseconds(),
409
331
self.disable))
410
332
self.enabled = True
411
self.last_enabled = datetime.datetime.utcnow()
412
333
# Also start a new checker *right now*.
413
334
self.start_checker()
414
335
417
338
if not getattr(self, "enabled", False):
418
339
return False
419
340
if not quiet:
420
self.send_changedstate()
421
if not quiet:
422
logger.info("Disabling client %s", self.name)
423
if getattr(self, "disable_initiator_tag", False):
341
logger.info(u"Disabling client %s", self.name)
342
if getattr(self, u"disable_initiator_tag", False):
424
343
gobject.source_remove(self.disable_initiator_tag)
425
344
self.disable_initiator_tag = None
426
self.expires = None
427
if getattr(self, "checker_initiator_tag", False):
345
if getattr(self, u"checker_initiator_tag", False):
428
346
gobject.source_remove(self.checker_initiator_tag)
429
347
self.checker_initiator_tag = None
430
348
self.stop_checker()
445
363
if os.WIFEXITED(condition):
446
364
exitstatus = os.WEXITSTATUS(condition)
447
365
if exitstatus == 0:
448
logger.info("Checker for %(name)s succeeded",
366
logger.info(u"Checker for %(name)s succeeded",
449
367
vars(self))
450
368
self.checked_ok()
451
369
else:
452
logger.info("Checker for %(name)s failed",
370
logger.info(u"Checker for %(name)s failed",
453
371
vars(self))
454
372
else:
455
logger.warning("Checker for %(name)s crashed?",
373
logger.warning(u"Checker for %(name)s crashed?",
456
374
vars(self))
457
375
458
def checked_ok(self, timeout=None):
376
def checked_ok(self):
459
377
"""Bump up the timeout for this client.
460
378
461
379
This should only be called when the client has been seen,
462
380
alive and well.
463
381
"""
464
if timeout is None:
465
timeout = self.timeout
466
382
self.last_checked_ok = datetime.datetime.utcnow()
467
383
gobject.source_remove(self.disable_initiator_tag)
468
self.expires = datetime.datetime.utcnow() + timeout
469
384
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()
385
(self.timeout_milliseconds(),
386
self.disable))
475
387
476
388
def start_checker(self):
477
389
"""Start a new checker subprocess if one is not running.
490
402
# If a checker exists, make sure it is not a zombie
491
403
try:
492
404
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
493
except (AttributeError, OSError) as error:
405
except (AttributeError, OSError), error:
494
406
if (isinstance(error, OSError)
495
407
and error.errno != errno.ECHILD):
496
408
raise error
497
409
else:
498
410
if pid:
499
logger.warning("Checker was a zombie")
411
logger.warning(u"Checker was a zombie")
500
412
gobject.source_remove(self.checker_callback_tag)
501
413
self.checker_callback(pid, status,
502
414
self.current_checker_command)
507
419
command = self.checker_command % self.host
508
420
except TypeError:
509
421
# 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
422
escaped_attrs = dict((key,
423
re.escape(unicode(str(val),
424
errors=
425
u'replace')))
426
for key, val in
427
vars(self).iteritems())
518
428
try:
519
429
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)
430
except TypeError, error:
431
logger.error(u'Could not format string "%s":'
432
u' %s', self.checker_command, error)
523
433
return True # Try again later
524
434
self.current_checker_command = command
525
435
try:
526
logger.info("Starting checker %r for %s",
436
logger.info(u"Starting checker %r for %s",
527
437
command, self.name)
528
438
# We don't need to redirect stdout and stderr, since
529
439
# in normal mode, that is already done by daemon(),
531
441
# always replaced by /dev/null.)
532
442
self.checker = subprocess.Popen(command,
533
443
close_fds=True,
534
shell=True, cwd="/")
444
shell=True, cwd=u"/")
535
445
self.checker_callback_tag = (gobject.child_watch_add
536
446
(self.checker.pid,
537
447
self.checker_callback,
542
452
if pid:
543
453
gobject.source_remove(self.checker_callback_tag)
544
454
self.checker_callback(pid, status, command)
545
except OSError as error:
546
logger.error("Failed to start subprocess: %s",
455
except OSError, error:
456
logger.error(u"Failed to start subprocess: %s",
547
457
error)
548
458
# Re-run this periodically if run by gobject.timeout_add
549
459
return True
553
463
if self.checker_callback_tag:
554
464
gobject.source_remove(self.checker_callback_tag)
555
465
self.checker_callback_tag = None
556
if getattr(self, "checker", None) is None:
466
if getattr(self, u"checker", None) is None:
557
467
return
558
logger.debug("Stopping checker for %(name)s", vars(self))
468
logger.debug(u"Stopping checker for %(name)s", vars(self))
559
469
try:
560
470
os.kill(self.checker.pid, signal.SIGTERM)
561
471
#time.sleep(0.5)
562
472
#if self.checker.poll() is None:
563
473
# os.kill(self.checker.pid, signal.SIGKILL)
564
except OSError as error:
474
except OSError, error:
565
475
if error.errno != errno.ESRCH: # No such process
566
476
raise
567
477
self.checker = None
568
478
569
479
570
def dbus_service_property(dbus_interface, signature="v",
571
access="readwrite", byte_arrays=False):
480
def dbus_service_property(dbus_interface, signature=u"v",
481
access=u"readwrite", byte_arrays=False):
572
482
"""Decorators for marking methods of a DBusObjectWithProperties to
573
483
become properties on the D-Bus.
574
484
581
491
"""
582
492
# Encoding deeply encoded byte arrays is not supported yet by the
583
493
# "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)
494
if byte_arrays and signature != u"ay":
495
raise ValueError(u"Byte arrays not supported for non-'ay'"
496
u" signature %r" % signature)
587
497
def decorator(func):
588
498
func._dbus_is_property = True
589
499
func._dbus_interface = dbus_interface
590
500
func._dbus_signature = signature
591
501
func._dbus_access = access
592
502
func._dbus_name = func.__name__
593
if func._dbus_name.endswith("_dbus_property"):
503
if func._dbus_name.endswith(u"_dbus_property"):
594
504
func._dbus_name = func._dbus_name[:-14]
595
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
505
func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
596
506
return func
597
507
return decorator
598
508
618
528
619
529
class DBusObjectWithProperties(dbus.service.Object):
620
530
"""A D-Bus object with properties.
621
531
622
532
Classes inheriting from this can use the dbus_service_property
623
533
decorator to expose methods as D-Bus properties. It exposes the
624
534
standard Get(), Set(), and GetAll() methods on the D-Bus.
626
536
627
537
@staticmethod
628
538
def _is_dbus_property(obj):
629
return getattr(obj, "_dbus_is_property", False)
539
return getattr(obj, u"_dbus_is_property", False)
630
540
631
541
def _get_all_dbus_properties(self):
632
542
"""Returns a generator of (name, attribute) pairs
633
543
"""
634
return ((prop.__get__(self)._dbus_name, prop.__get__(self))
635
for cls in self.__class__.__mro__
544
return ((prop._dbus_name, prop)
636
545
for name, prop in
637
inspect.getmembers(cls, self._is_dbus_property))
546
inspect.getmembers(self, self._is_dbus_property))
638
547
639
548
def _get_dbus_property(self, interface_name, property_name):
640
549
"""Returns a bound method if one exists which is a D-Bus
641
550
property with the specified name and interface.
642
551
"""
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
552
for name in (property_name,
553
property_name + u"_dbus_property"):
554
prop = getattr(self, name, None)
555
if (prop is None
556
or not self._is_dbus_property(prop)
557
or prop._dbus_name != property_name
558
or (interface_name and prop._dbus_interface
559
and interface_name != prop._dbus_interface)):
560
continue
561
return prop
650
562
# No such property
651
raise DBusPropertyNotFound(self.dbus_object_path + ":"
652
+ interface_name + "."
563
raise DBusPropertyNotFound(self.dbus_object_path + u":"
564
+ interface_name + u"."
653
565
+ property_name)
654
566
655
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
656
out_signature="v")
567
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
568
out_signature=u"v")
657
569
def Get(self, interface_name, property_name):
658
570
"""Standard D-Bus property Get() method, see D-Bus standard.
659
571
"""
660
572
prop = self._get_dbus_property(interface_name, property_name)
661
if prop._dbus_access == "write":
573
if prop._dbus_access == u"write":
662
574
raise DBusPropertyAccessException(property_name)
663
575
value = prop()
664
if not hasattr(value, "variant_level"):
576
if not hasattr(value, u"variant_level"):
665
577
return value
666
578
return type(value)(value, variant_level=value.variant_level+1)
667
579
668
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
580
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
669
581
def Set(self, interface_name, property_name, value):
670
582
"""Standard D-Bus property Set() method, see D-Bus standard.
671
583
"""
672
584
prop = self._get_dbus_property(interface_name, property_name)
673
if prop._dbus_access == "read":
585
if prop._dbus_access == u"read":
674
586
raise DBusPropertyAccessException(property_name)
675
if prop._dbus_get_args_options["byte_arrays"]:
587
if prop._dbus_get_args_options[u"byte_arrays"]:
676
588
# The byte_arrays option is not supported yet on
677
589
# signatures other than "ay".
678
if prop._dbus_signature != "ay":
590
if prop._dbus_signature != u"ay":
679
591
raise ValueError
680
592
value = dbus.ByteArray(''.join(unichr(byte)
681
593
for byte in value))
682
594
prop(value)
683
595
684
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
685
out_signature="a{sv}")
596
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
597
out_signature=u"a{sv}")
686
598
def GetAll(self, interface_name):
687
599
"""Standard D-Bus property GetAll() method, see D-Bus
688
600
standard.
689
601
690
602
Note: Will not include properties with access="write".
691
603
"""
692
604
all = {}
696
608
# Interface non-empty but did not match
697
609
continue
698
610
# Ignore write-only properties
699
if prop._dbus_access == "write":
611
if prop._dbus_access == u"write":
700
612
continue
701
613
value = prop()
702
if not hasattr(value, "variant_level"):
614
if not hasattr(value, u"variant_level"):
703
615
all[name] = value
704
616
continue
705
617
all[name] = type(value)(value, variant_level=
706
618
value.variant_level+1)
707
return dbus.Dictionary(all, signature="sv")
619
return dbus.Dictionary(all, signature=u"sv")
708
620
709
621
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
710
out_signature="s",
622
out_signature=u"s",
711
623
path_keyword='object_path',
712
624
connection_keyword='connection')
713
625
def Introspect(self, object_path, connection):
718
630
try:
719
631
document = xml.dom.minidom.parseString(xmlstring)
720
632
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)
633
e = document.createElement(u"property")
634
e.setAttribute(u"name", name)
635
e.setAttribute(u"type", prop._dbus_signature)
636
e.setAttribute(u"access", prop._dbus_access)
725
637
return e
726
for if_tag in document.getElementsByTagName("interface"):
638
for if_tag in document.getElementsByTagName(u"interface"):
727
639
for tag in (make_tag(document, name, prop)
728
640
for name, prop
729
641
in self._get_all_dbus_properties()
730
642
if prop._dbus_interface
731
== if_tag.getAttribute("name")):
643
== if_tag.getAttribute(u"name")):
732
644
if_tag.appendChild(tag)
733
645
# Add the names to the return values for the
734
646
# "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")
647
if (if_tag.getAttribute(u"name")
648
== u"org.freedesktop.DBus.Properties"):
649
for cn in if_tag.getElementsByTagName(u"method"):
650
if cn.getAttribute(u"name") == u"Get":
651
for arg in cn.getElementsByTagName(u"arg"):
652
if (arg.getAttribute(u"direction")
653
== u"out"):
654
arg.setAttribute(u"name", u"value")
655
elif cn.getAttribute(u"name") == u"GetAll":
656
for arg in cn.getElementsByTagName(u"arg"):
657
if (arg.getAttribute(u"direction")
658
== u"out"):
659
arg.setAttribute(u"name", u"props")
660
xmlstring = document.toxml(u"utf-8")
749
661
document.unlink()
750
662
except (AttributeError, xml.dom.DOMException,
751
xml.parsers.expat.ExpatError) as error:
752
logger.error("Failed to override Introspection method",
663
xml.parsers.expat.ExpatError), error:
664
logger.error(u"Failed to override Introspection method",
753
665
error)
754
666
return xmlstring
755
667
756
668
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
669
class ClientDBus(Client, DBusObjectWithProperties):
862
670
"""A Client class using D-Bus
863
671
865
673
dbus_object_path: dbus.ObjectPath
866
674
bus: dbus.SystemBus()
867
675
"""
868
869
runtime_expansions = (Client.runtime_expansions
870
+ ("dbus_object_path",))
871
872
676
# dbus.service.Object doesn't use super(), so we can't either.
873
677
874
678
def __init__(self, bus = None, *args, **kwargs):
875
self._approvals_pending = 0
876
679
self.bus = bus
877
680
Client.__init__(self, *args, **kwargs)
878
681
# Only now, when this client is initialized, can it show up on
879
682
# the D-Bus
880
client_object_name = unicode(self.name).translate(
881
{ord("."): ord("_"),
882
ord("-"): ord("_")})
883
683
self.dbus_object_path = (dbus.ObjectPath
884
("/clients/" + client_object_name))
684
(u"/clients/"
685
+ self.name.replace(u".", u"_")))
885
686
DBusObjectWithProperties.__init__(self, self.bus,
886
687
self.dbus_object_path)
887
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.
893
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
attrname = "_{0}".format(dbus_name)
902
def setter(self, value):
903
if hasattr(self, "dbus_object_path"):
904
if (not hasattr(self, attrname) or
905
type_func(getattr(self, attrname, None))
906
!= type_func(value)):
907
dbus_value = transform_func(type_func(value),
908
variant_level)
909
self.PropertyChanged(dbus.String(dbus_name),
910
dbus_value)
911
setattr(self, attrname, value)
912
913
return property(lambda self: getattr(self, attrname), 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
688
689
@staticmethod
690
def _datetime_to_dbus(dt, variant_level=0):
691
"""Convert a UTC datetime.datetime() to a D-Bus type."""
692
return dbus.String(dt.isoformat(),
693
variant_level=variant_level)
694
695
def enable(self):
696
oldstate = getattr(self, u"enabled", False)
697
r = Client.enable(self)
698
if oldstate != self.enabled:
699
# Emit D-Bus signals
700
self.PropertyChanged(dbus.String(u"enabled"),
701
dbus.Boolean(True, variant_level=1))
702
self.PropertyChanged(
703
dbus.String(u"last_enabled"),
704
self._datetime_to_dbus(self.last_enabled,
705
variant_level=1))
706
return r
707
708
def disable(self, quiet = False):
709
oldstate = getattr(self, u"enabled", False)
710
r = Client.disable(self, quiet=quiet)
711
if not quiet and oldstate != self.enabled:
712
# Emit D-Bus signal
713
self.PropertyChanged(dbus.String(u"enabled"),
714
dbus.Boolean(False, variant_level=1))
715
return r
953
716
954
717
def __del__(self, *args, **kwargs):
955
718
try:
956
719
self.remove_from_connection()
957
720
except LookupError:
958
721
pass
959
if hasattr(DBusObjectWithProperties, "__del__"):
722
if hasattr(DBusObjectWithProperties, u"__del__"):
960
723
DBusObjectWithProperties.__del__(self, *args, **kwargs)
961
724
Client.__del__(self, *args, **kwargs)
962
725
964
727
*args, **kwargs):
965
728
self.checker_callback_tag = None
966
729
self.checker = None
730
# Emit D-Bus signal
731
self.PropertyChanged(dbus.String(u"checker_running"),
732
dbus.Boolean(False, variant_level=1))
967
733
if os.WIFEXITED(condition):
968
734
exitstatus = os.WEXITSTATUS(condition)
969
735
# Emit D-Bus signal
979
745
return Client.checker_callback(self, pid, condition, command,
980
746
*args, **kwargs)
981
747
748
def checked_ok(self, *args, **kwargs):
749
r = Client.checked_ok(self, *args, **kwargs)
750
# Emit D-Bus signal
751
self.PropertyChanged(
752
dbus.String(u"last_checked_ok"),
753
(self._datetime_to_dbus(self.last_checked_ok,
754
variant_level=1)))
755
return r
756
982
757
def start_checker(self, *args, **kwargs):
983
758
old_checker = self.checker
984
759
if self.checker is not None:
991
766
and old_checker_pid != self.checker.pid):
992
767
# Emit D-Bus signal
993
768
self.CheckerStarted(self.current_checker_command)
994
return r
995
996
def _reset_approved(self):
997
self._approved = None
998
return False
999
1000
def approve(self, value=True):
1001
self.send_changedstate()
1002
self._approved = value
1003
gobject.timeout_add(_timedelta_to_milliseconds
1004
(self.approval_duration),
1005
self._reset_approved)
1006
1007
1008
## D-Bus methods, signals & properties
1009
_interface = "se.recompile.Mandos.Client"
1010
1011
## Signals
769
self.PropertyChanged(
770
dbus.String(u"checker_running"),
771
dbus.Boolean(True, variant_level=1))
772
return r
773
774
def stop_checker(self, *args, **kwargs):
775
old_checker = getattr(self, u"checker", None)
776
r = Client.stop_checker(self, *args, **kwargs)
777
if (old_checker is not None
778
and getattr(self, u"checker", None) is None):
779
self.PropertyChanged(dbus.String(u"checker_running"),
780
dbus.Boolean(False, variant_level=1))
781
return r
782
783
## D-Bus methods & signals
784
_interface = u"se.bsnet.fukt.Mandos.Client"
785
786
# CheckedOK - method
787
@dbus.service.method(_interface)
788
def CheckedOK(self):
789
return self.checked_ok()
1012
790
1013
791
# CheckerCompleted - signal
1014
@dbus.service.signal(_interface, signature="nxs")
792
@dbus.service.signal(_interface, signature=u"nxs")
1015
793
def CheckerCompleted(self, exitcode, waitstatus, command):
1016
794
"D-Bus signal"
1017
795
pass
1018
796
1019
797
# CheckerStarted - signal
1020
@dbus.service.signal(_interface, signature="s")
798
@dbus.service.signal(_interface, signature=u"s")
1021
799
def CheckerStarted(self, command):
1022
800
"D-Bus signal"
1023
801
pass
1024
802
1025
803
# PropertyChanged - signal
1026
@dbus.service.signal(_interface, signature="sv")
804
@dbus.service.signal(_interface, signature=u"sv")
1027
805
def PropertyChanged(self, property, value):
1028
806
"D-Bus signal"
1029
807
pass
1031
809
# GotSecret - signal
1032
810
@dbus.service.signal(_interface)
1033
811
def GotSecret(self):
1034
"""D-Bus signal
1035
Is sent after a successful transfer of secret from the Mandos
1036
server to mandos-client
1037
"""
812
"D-Bus signal"
1038
813
pass
1039
814
1040
815
# Rejected - signal
1041
@dbus.service.signal(_interface, signature="s")
1042
def Rejected(self, reason):
816
@dbus.service.signal(_interface)
817
def Rejected(self):
1043
818
"D-Bus signal"
1044
819
pass
1045
820
1046
# NeedApproval - signal
1047
@dbus.service.signal(_interface, signature="tb")
1048
def NeedApproval(self, timeout, default):
1049
"D-Bus signal"
1050
return self.need_approval()
1051
1052
## Methods
1053
1054
# Approve - method
1055
@dbus.service.method(_interface, in_signature="b")
1056
def Approve(self, value):
1057
self.approve(value)
1058
1059
# CheckedOK - method
1060
@dbus.service.method(_interface)
1061
def CheckedOK(self):
1062
self.checked_ok()
1063
1064
821
# Enable - method
1065
822
@dbus.service.method(_interface)
1066
823
def Enable(self):
1084
841
def StopChecker(self):
1085
842
self.stop_checker()
1086
843
1087
## Properties
1088
1089
# ApprovalPending - property
1090
@dbus_service_property(_interface, signature="b", access="read")
1091
def ApprovalPending_dbus_property(self):
1092
return dbus.Boolean(bool(self.approvals_pending))
1093
1094
# ApprovedByDefault - property
1095
@dbus_service_property(_interface, signature="b",
1096
access="readwrite")
1097
def ApprovedByDefault_dbus_property(self, value=None):
1098
if value is None: # get
1099
return dbus.Boolean(self.approved_by_default)
1100
self.approved_by_default = bool(value)
1101
1102
# ApprovalDelay - property
1103
@dbus_service_property(_interface, signature="t",
1104
access="readwrite")
1105
def ApprovalDelay_dbus_property(self, value=None):
1106
if value is None: # get
1107
return dbus.UInt64(self.approval_delay_milliseconds())
1108
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1109
1110
# ApprovalDuration - property
1111
@dbus_service_property(_interface, signature="t",
1112
access="readwrite")
1113
def ApprovalDuration_dbus_property(self, value=None):
1114
if value is None: # get
1115
return dbus.UInt64(_timedelta_to_milliseconds(
1116
self.approval_duration))
1117
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1118
1119
# Name - property
1120
@dbus_service_property(_interface, signature="s", access="read")
1121
def Name_dbus_property(self):
844
# name - property
845
@dbus_service_property(_interface, signature=u"s", access=u"read")
846
def name_dbus_property(self):
1122
847
return dbus.String(self.name)
1123
848
1124
# Fingerprint - property
1125
@dbus_service_property(_interface, signature="s", access="read")
1126
def Fingerprint_dbus_property(self):
849
# fingerprint - property
850
@dbus_service_property(_interface, signature=u"s", access=u"read")
851
def fingerprint_dbus_property(self):
1127
852
return dbus.String(self.fingerprint)
1128
853
1129
# Host - property
1130
@dbus_service_property(_interface, signature="s",
1131
access="readwrite")
1132
def Host_dbus_property(self, value=None):
854
# host - property
855
@dbus_service_property(_interface, signature=u"s",
856
access=u"readwrite")
857
def host_dbus_property(self, value=None):
1133
858
if value is None: # get
1134
859
return dbus.String(self.host)
1135
860
self.host = value
1136
1137
# Created - property
1138
@dbus_service_property(_interface, signature="s", access="read")
1139
def Created_dbus_property(self):
1140
return dbus.String(datetime_to_dbus(self.created))
1141
1142
# LastEnabled - property
1143
@dbus_service_property(_interface, signature="s", access="read")
1144
def LastEnabled_dbus_property(self):
1145
return datetime_to_dbus(self.last_enabled)
1146
1147
# Enabled - property
1148
@dbus_service_property(_interface, signature="b",
1149
access="readwrite")
1150
def Enabled_dbus_property(self, value=None):
861
# Emit D-Bus signal
862
self.PropertyChanged(dbus.String(u"host"),
863
dbus.String(value, variant_level=1))
864
865
# created - property
866
@dbus_service_property(_interface, signature=u"s", access=u"read")
867
def created_dbus_property(self):
868
return dbus.String(self._datetime_to_dbus(self.created))
869
870
# last_enabled - property
871
@dbus_service_property(_interface, signature=u"s", access=u"read")
872
def last_enabled_dbus_property(self):
873
if self.last_enabled is None:
874
return dbus.String(u"")
875
return dbus.String(self._datetime_to_dbus(self.last_enabled))
876
877
# enabled - property
878
@dbus_service_property(_interface, signature=u"b",
879
access=u"readwrite")
880
def enabled_dbus_property(self, value=None):
1151
881
if value is None: # get
1152
882
return dbus.Boolean(self.enabled)
1153
883
if value:
1155
885
else:
1156
886
self.disable()
1157
887
1158
# LastCheckedOK - property
1159
@dbus_service_property(_interface, signature="s",
1160
access="readwrite")
1161
def LastCheckedOK_dbus_property(self, value=None):
888
# last_checked_ok - property
889
@dbus_service_property(_interface, signature=u"s",
890
access=u"readwrite")
891
def last_checked_ok_dbus_property(self, value=None):
1162
892
if value is not None:
1163
893
self.checked_ok()
1164
894
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)
1176
1177
# Timeout - property
1178
@dbus_service_property(_interface, signature="t",
1179
access="readwrite")
1180
def Timeout_dbus_property(self, value=None):
895
if self.last_checked_ok is None:
896
return dbus.String(u"")
897
return dbus.String(self._datetime_to_dbus(self
898
.last_checked_ok))
899
900
# timeout - property
901
@dbus_service_property(_interface, signature=u"t",
902
access=u"readwrite")
903
def timeout_dbus_property(self, value=None):
1181
904
if value is None: # get
1182
905
return dbus.UInt64(self.timeout_milliseconds())
1183
906
self.timeout = datetime.timedelta(0, 0, 0, value)
1184
if getattr(self, "disable_initiator_tag", None) is None:
907
# Emit D-Bus signal
908
self.PropertyChanged(dbus.String(u"timeout"),
909
dbus.UInt64(value, variant_level=1))
910
if getattr(self, u"disable_initiator_tag", None) is None:
1185
911
return
1186
912
# Reschedule timeout
1187
913
gobject.source_remove(self.disable_initiator_tag)
1188
914
self.disable_initiator_tag = None
1189
self.expires = None
1190
915
time_to_die = (self.
1191
916
_timedelta_to_milliseconds((self
1192
917
.last_checked_ok
1197
922
# The timeout has passed
1198
923
self.disable()
1199
924
else:
1200
self.expires = (datetime.datetime.utcnow()
1201
+ datetime.timedelta(milliseconds =
1202
time_to_die))
1203
925
self.disable_initiator_tag = (gobject.timeout_add
1204
926
(time_to_die, self.disable))
1205
927
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
# Interval - property
1215
@dbus_service_property(_interface, signature="t",
1216
access="readwrite")
1217
def Interval_dbus_property(self, value=None):
928
# interval - property
929
@dbus_service_property(_interface, signature=u"t",
930
access=u"readwrite")
931
def interval_dbus_property(self, value=None):
1218
932
if value is None: # get
1219
933
return dbus.UInt64(self.interval_milliseconds())
1220
934
self.interval = datetime.timedelta(0, 0, 0, value)
1221
if getattr(self, "checker_initiator_tag", None) is None:
935
# Emit D-Bus signal
936
self.PropertyChanged(dbus.String(u"interval"),
937
dbus.UInt64(value, variant_level=1))
938
if getattr(self, u"checker_initiator_tag", None) is None:
1222
939
return
1223
940
# Reschedule checker run
1224
941
gobject.source_remove(self.checker_initiator_tag)
1225
942
self.checker_initiator_tag = (gobject.timeout_add
1226
943
(value, self.start_checker))
1227
944
self.start_checker() # Start one now, too
1228
1229
# Checker - property
1230
@dbus_service_property(_interface, signature="s",
1231
access="readwrite")
1232
def Checker_dbus_property(self, value=None):
945
946
# checker - property
947
@dbus_service_property(_interface, signature=u"s",
948
access=u"readwrite")
949
def checker_dbus_property(self, value=None):
1233
950
if value is None: # get
1234
951
return dbus.String(self.checker_command)
1235
952
self.checker_command = value
953
# Emit D-Bus signal
954
self.PropertyChanged(dbus.String(u"checker"),
955
dbus.String(self.checker_command,
956
variant_level=1))
1236
957
1237
# CheckerRunning - property
1238
@dbus_service_property(_interface, signature="b",
1239
access="readwrite")
1240
def CheckerRunning_dbus_property(self, value=None):
958
# checker_running - property
959
@dbus_service_property(_interface, signature=u"b",
960
access=u"readwrite")
961
def checker_running_dbus_property(self, value=None):
1241
962
if value is None: # get
1242
963
return dbus.Boolean(self.checker is not None)
1243
964
if value:
1245
966
else:
1246
967
self.stop_checker()
1247
968
1248
# ObjectPath - property
1249
@dbus_service_property(_interface, signature="o", access="read")
1250
def ObjectPath_dbus_property(self):
969
# object_path - property
970
@dbus_service_property(_interface, signature=u"o", access=u"read")
971
def object_path_dbus_property(self):
1251
972
return self.dbus_object_path # is already a dbus.ObjectPath
1252
973
1253
# Secret = property
1254
@dbus_service_property(_interface, signature="ay",
1255
access="write", byte_arrays=True)
1256
def Secret_dbus_property(self, value):
974
# secret = property
975
@dbus_service_property(_interface, signature=u"ay",
976
access=u"write", byte_arrays=True)
977
def secret_dbus_property(self, value):
1257
978
self.secret = str(value)
1258
979
1259
980
del _interface
1260
981
1261
982
1262
class ProxyClient(object):
1263
def __init__(self, child_pipe, fpr, address):
1264
self._pipe = child_pipe
1265
self._pipe.send(('init', fpr, address))
1266
if not self._pipe.recv():
1267
raise KeyError()
1268
1269
def __getattribute__(self, name):
1270
if(name == '_pipe'):
1271
return super(ProxyClient, self).__getattribute__(name)
1272
self._pipe.send(('getattr', name))
1273
data = self._pipe.recv()
1274
if data[0] == 'data':
1275
return data[1]
1276
if data[0] == 'function':
1277
def func(*args, **kwargs):
1278
self._pipe.send(('funcall', name, args, kwargs))
1279
return self._pipe.recv()[1]
1280
return func
1281
1282
def __setattr__(self, name, value):
1283
if(name == '_pipe'):
1284
return super(ProxyClient, self).__setattr__(name, value)
1285
self._pipe.send(('setattr', name, value))
1286
1287
class ClientDBusTransitional(ClientDBus):
1288
__metaclass__ = AlternateDBusNamesMetaclass
1289
1290
983
class ClientHandler(socketserver.BaseRequestHandler, object):
1291
984
"""A class to handle client connections.
1292
985
1294
987
Note: This will run in its own forked process."""
1295
988
1296
989
def handle(self):
1297
with contextlib.closing(self.server.child_pipe) as child_pipe:
1298
logger.info("TCP connection from: %s",
1299
unicode(self.client_address))
1300
logger.debug("Pipe FD: %d",
1301
self.server.child_pipe.fileno())
1302
990
logger.info(u"TCP connection from: %s",
991
unicode(self.client_address))
992
logger.debug(u"IPC Pipe FD: %d", self.server.child_pipe[1])
993
# Open IPC pipe to parent process
994
with contextlib.nested(os.fdopen(self.server.child_pipe[1],
995
u"w", 1),
996
os.fdopen(self.server.parent_pipe[0],
997
u"r", 0)) as (ipc,
998
ipc_return):
1303
999
session = (gnutls.connection
1304
1000
.ClientSession(self.request,
1305
1001
gnutls.connection
1306
1002
.X509Credentials()))
1307
1003
1004
line = self.request.makefile().readline()
1005
logger.debug(u"Protocol version: %r", line)
1006
try:
1007
if int(line.strip().split()[0]) > 1:
1008
raise RuntimeError
1009
except (ValueError, IndexError, RuntimeError), error:
1010
logger.error(u"Unknown protocol version: %s", error)
1011
return
1012
1308
1013
# Note: gnutls.connection.X509Credentials is really a
1309
1014
# generic GnuTLS certificate credentials object so long as
1310
1015
# no X.509 keys are added to it. Therefore, we can use it
1311
1016
# here despite using OpenPGP certificates.
1312
1017
1313
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1314
# "+AES-256-CBC", "+SHA1",
1315
# "+COMP-NULL", "+CTYPE-OPENPGP",
1316
# "+DHE-DSS"))
1018
#priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
1019
# u"+AES-256-CBC", u"+SHA1",
1020
# u"+COMP-NULL", u"+CTYPE-OPENPGP",
1021
# u"+DHE-DSS"))
1317
1022
# Use a fallback default, since this MUST be set.
1318
1023
priority = self.server.gnutls_priority
1319
1024
if priority is None:
1320
priority = "NORMAL"
1025
priority = u"NORMAL"
1321
1026
(gnutls.library.functions
1322
1027
.gnutls_priority_set_direct(session._c_object,
1323
1028
priority, None))
1324
1029
1325
# Start communication using the Mandos protocol
1326
# Get protocol number
1327
line = self.request.makefile().readline()
1328
logger.debug("Protocol version: %r", line)
1329
try:
1330
if int(line.strip().split()[0]) > 1:
1331
raise RuntimeError
1332
except (ValueError, IndexError, RuntimeError) as error:
1333
logger.error("Unknown protocol version: %s", error)
1334
return
1335
1336
# Start GnuTLS connection
1337
1030
try:
1338
1031
session.handshake()
1339
except gnutls.errors.GNUTLSError as error:
1340
logger.warning("Handshake failed: %s", error)
1032
except gnutls.errors.GNUTLSError, error:
1033
logger.warning(u"Handshake failed: %s", error)
1341
1034
# Do not run session.bye() here: the session is not
1342
1035
# established. Just abandon the request.
1343
1036
return
1344
logger.debug("Handshake succeeded")
1345
1346
approval_required = False
1037
logger.debug(u"Handshake succeeded")
1347
1038
try:
1348
1039
try:
1349
1040
fpr = self.fingerprint(self.peer_certificate
1350
1041
(session))
1351
except (TypeError,
1352
gnutls.errors.GNUTLSError) as error:
1353
logger.warning("Bad certificate: %s", error)
1354
return
1355
logger.debug("Fingerprint: %s", fpr)
1356
1357
try:
1358
client = ProxyClient(child_pipe, fpr,
1359
self.client_address)
1360
except KeyError:
1361
return
1362
1363
if client.approval_delay:
1364
delay = client.approval_delay
1365
client.approvals_pending += 1
1366
approval_required = True
1367
1368
while True:
1369
if not client.enabled:
1370
logger.info("Client %s is disabled",
1371
client.name)
1372
if self.server.use_dbus:
1373
# Emit D-Bus signal
1374
client.Rejected("Disabled")
1375
return
1376
1377
if client._approved or not client.approval_delay:
1378
#We are approved or approval is disabled
1042
except (TypeError, gnutls.errors.GNUTLSError), error:
1043
logger.warning(u"Bad certificate: %s", error)
1044
return
1045
logger.debug(u"Fingerprint: %s", fpr)
1046
1047
for c in self.server.clients:
1048
if c.fingerprint == fpr:
1049
client = c
1379
1050
break
1380
elif client._approved is None:
1381
logger.info("Client %s needs approval",
1382
client.name)
1383
if self.server.use_dbus:
1384
# Emit D-Bus signal
1385
client.NeedApproval(
1386
client.approval_delay_milliseconds(),
1387
client.approved_by_default)
1388
else:
1389
logger.warning("Client %s was not approved",
1390
client.name)
1391
if self.server.use_dbus:
1392
# Emit D-Bus signal
1393
client.Rejected("Denied")
1394
return
1395
1396
#wait until timeout or approved
1397
#x = float(client
1398
# ._timedelta_to_milliseconds(delay))
1399
time = datetime.datetime.now()
1400
client.changedstate.acquire()
1401
(client.changedstate.wait
1402
(float(client._timedelta_to_milliseconds(delay)
1403
/ 1000)))
1404
client.changedstate.release()
1405
time2 = datetime.datetime.now()
1406
if (time2 - time) >= delay:
1407
if not client.approved_by_default:
1408
logger.warning("Client %s timed out while"
1409
" waiting for approval",
1410
client.name)
1411
if self.server.use_dbus:
1412
# Emit D-Bus signal
1413
client.Rejected("Approval timed out")
1414
return
1415
else:
1416
break
1417
else:
1418
delay -= time2 - time
1419
1051
else:
1052
ipc.write(u"NOTFOUND %s %s\n"
1053
% (fpr, unicode(self.client_address)))
1054
return
1055
# Have to check if client.enabled, since it is
1056
# possible that the client was disabled since the
1057
# GnuTLS session was established.
1058
ipc.write(u"GETATTR enabled %s\n" % fpr)
1059
enabled = pickle.load(ipc_return)
1060
if not enabled:
1061
ipc.write(u"DISABLED %s\n" % client.name)
1062
return
1063
ipc.write(u"SENDING %s\n" % client.name)
1420
1064
sent_size = 0
1421
1065
while sent_size < len(client.secret):
1422
try:
1423
sent = session.send(client.secret[sent_size:])
1424
except gnutls.errors.GNUTLSError as error:
1425
logger.warning("gnutls send failed")
1426
return
1427
logger.debug("Sent: %d, remaining: %d",
1066
sent = session.send(client.secret[sent_size:])
1067
logger.debug(u"Sent: %d, remaining: %d",
1428
1068
sent, len(client.secret)
1429
1069
- (sent_size + sent))
1430
1070
sent_size += sent
1431
1432
logger.info("Sending secret to %s", client.name)
1433
# bump the timeout as if seen
1434
client.checked_ok(client.extended_timeout)
1435
if self.server.use_dbus:
1436
# Emit D-Bus signal
1437
client.GotSecret()
1438
1439
1071
finally:
1440
if approval_required:
1441
client.approvals_pending -= 1
1442
try:
1443
session.bye()
1444
except gnutls.errors.GNUTLSError as error:
1445
logger.warning("GnuTLS bye failed")
1072
session.bye()
1446
1073
1447
1074
@staticmethod
1448
1075
def peer_certificate(session):
1458
1085
.gnutls_certificate_get_peers
1459
1086
(session._c_object, ctypes.byref(list_size)))
1460
1087
if not bool(cert_list) and list_size.value != 0:
1461
raise gnutls.errors.GNUTLSError("error getting peer"
1462
" certificate")
1088
raise gnutls.errors.GNUTLSError(u"error getting peer"
1089
u" certificate")
1463
1090
if list_size.value == 0:
1464
1091
return None
1465
1092
cert = cert_list[0]
1491
1118
if crtverify.value != 0:
1492
1119
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1493
1120
raise (gnutls.errors.CertificateSecurityError
1494
("Verify failed"))
1121
(u"Verify failed"))
1495
1122
# New buffer for the fingerprint
1496
1123
buf = ctypes.create_string_buffer(20)
1497
1124
buf_len = ctypes.c_size_t()
1504
1131
# Convert the buffer to a Python bytestring
1505
1132
fpr = ctypes.string_at(buf, buf_len.value)
1506
1133
# Convert the bytestring to hexadecimal notation
1507
hex_fpr = ''.join("%02X" % ord(char) for char in fpr)
1134
hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1508
1135
return hex_fpr
1509
1136
1510
1137
1511
class MultiprocessingMixIn(object):
1512
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
1513
def sub_process_main(self, request, address):
1514
try:
1515
self.finish_request(request, address)
1516
except:
1517
self.handle_error(request, address)
1518
self.close_request(request)
1519
1520
def process_request(self, request, address):
1521
"""Start a new process to process the request."""
1522
multiprocessing.Process(target = self.sub_process_main,
1523
args = (request, address)).start()
1524
1525
1526
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1527
""" adds a pipe to the MixIn """
1138
class ForkingMixInWithPipes(socketserver.ForkingMixIn, object):
1139
"""Like socketserver.ForkingMixIn, but also pass a pipe pair."""
1528
1140
def process_request(self, request, client_address):
1529
1141
"""Overrides and wraps the original process_request().
1530
1142
1531
1143
This function creates a new pipe in self.pipe
1532
1144
"""
1533
parent_pipe, self.child_pipe = multiprocessing.Pipe()
1534
1535
super(MultiprocessingMixInWithPipe,
1145
self.child_pipe = os.pipe() # Child writes here
1146
self.parent_pipe = os.pipe() # Parent writes here
1147
super(ForkingMixInWithPipes,
1536
1148
self).process_request(request, client_address)
1537
self.child_pipe.close()
1538
self.add_pipe(parent_pipe)
1539
1540
def add_pipe(self, parent_pipe):
1149
# Close unused ends for parent
1150
os.close(self.parent_pipe[0]) # close read end
1151
os.close(self.child_pipe[1]) # close write end
1152
self.add_pipe_fds(self.child_pipe[0], self.parent_pipe[1])
1153
def add_pipe_fds(self, child_pipe_fd, parent_pipe_fd):
1541
1154
"""Dummy function; override as necessary"""
1542
raise NotImplementedError
1543
1544
1545
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1155
os.close(child_pipe_fd)
1156
os.close(parent_pipe_fd)
1157
1158
1159
class IPv6_TCPServer(ForkingMixInWithPipes,
1546
1160
socketserver.TCPServer, object):
1547
1161
"""IPv6-capable TCP server. Accepts 'None' as address and/or port
1548
1162
1564
1178
bind to an address or port if they were not specified."""
1565
1179
if self.interface is not None:
1566
1180
if SO_BINDTODEVICE is None:
1567
logger.error("SO_BINDTODEVICE does not exist;"
1568
" cannot bind to interface %s",
1181
logger.error(u"SO_BINDTODEVICE does not exist;"
1182
u" cannot bind to interface %s",
1569
1183
self.interface)
1570
1184
else:
1571
1185
try:
1572
1186
self.socket.setsockopt(socket.SOL_SOCKET,
1573
1187
SO_BINDTODEVICE,
1574
1188
str(self.interface
1575
+ '\0'))
1576
except socket.error as error:
1189
+ u'\0'))
1190
except socket.error, error:
1577
1191
if error[0] == errno.EPERM:
1578
logger.error("No permission to"
1579
" bind to interface %s",
1192
logger.error(u"No permission to"
1193
u" bind to interface %s",
1580
1194
self.interface)
1581
1195
elif error[0] == errno.ENOPROTOOPT:
1582
logger.error("SO_BINDTODEVICE not available;"
1583
" cannot bind to interface %s",
1196
logger.error(u"SO_BINDTODEVICE not available;"
1197
u" cannot bind to interface %s",
1584
1198
self.interface)
1585
1199
else:
1586
1200
raise
1588
1202
if self.server_address[0] or self.server_address[1]:
1589
1203
if not self.server_address[0]:
1590
1204
if self.address_family == socket.AF_INET6:
1591
any_address = "::" # in6addr_any
1205
any_address = u"::" # in6addr_any
1592
1206
else:
1593
1207
any_address = socket.INADDR_ANY
1594
1208
self.server_address = (any_address,
1633
1247
return socketserver.TCPServer.server_activate(self)
1634
1248
def enable(self):
1635
1249
self.enabled = True
1636
def add_pipe(self, parent_pipe):
1250
def add_pipe_fds(self, child_pipe_fd, parent_pipe_fd):
1637
1251
# Call "handle_ipc" for both data and EOF events
1638
gobject.io_add_watch(parent_pipe.fileno(),
1252
gobject.io_add_watch(child_pipe_fd,
1639
1253
gobject.IO_IN | gobject.IO_HUP,
1640
1254
functools.partial(self.handle_ipc,
1641
parent_pipe =
1642
parent_pipe))
1643
1644
def handle_ipc(self, source, condition, parent_pipe=None,
1645
client_object=None):
1255
reply_fd
1256
=parent_pipe_fd))
1257
def handle_ipc(self, source, condition, reply_fd=None,
1258
file_objects={}):
1646
1259
condition_names = {
1647
gobject.IO_IN: "IN", # There is data to read.
1648
gobject.IO_OUT: "OUT", # Data can be written (without
1260
gobject.IO_IN: u"IN", # There is data to read.
1261
gobject.IO_OUT: u"OUT", # Data can be written (without
1649
1262
# 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
1263
gobject.IO_PRI: u"PRI", # There is urgent data to read.
1264
gobject.IO_ERR: u"ERR", # Error condition.
1265
gobject.IO_HUP: u"HUP" # Hung up (the connection has been
1653
1266
# broken, usually for pipes and
1654
1267
# sockets).
1655
1268
}
1657
1270
for cond, name in
1658
1271
condition_names.iteritems()
1659
1272
if cond & condition)
1660
# error or the other end of multiprocessing.Pipe has closed
1661
if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
1662
return False
1663
1664
# Read a request from the child
1665
request = parent_pipe.recv()
1666
command = request[0]
1667
1668
if command == 'init':
1669
fpr = request[1]
1670
address = request[2]
1671
1672
for c in self.clients:
1673
if c.fingerprint == fpr:
1674
client = c
1675
break
1676
else:
1677
logger.info("Client not found for fingerprint: %s, ad"
1678
"dress: %s", fpr, address)
1679
if self.use_dbus:
1680
# Emit D-Bus signal
1681
mandos_dbus_service.ClientNotFound(fpr,
1682
address[0])
1683
parent_pipe.send(False)
1684
return False
1685
1686
gobject.io_add_watch(parent_pipe.fileno(),
1687
gobject.IO_IN | gobject.IO_HUP,
1688
functools.partial(self.handle_ipc,
1689
parent_pipe =
1690
parent_pipe,
1691
client_object =
1692
client))
1693
parent_pipe.send(True)
1694
# remove the old hook in favor of the new above hook on
1695
# same fileno
1696
return False
1697
if command == 'funcall':
1698
funcname = request[1]
1699
args = request[2]
1700
kwargs = request[3]
1701
1702
parent_pipe.send(('data', getattr(client_object,
1703
funcname)(*args,
1704
**kwargs)))
1705
1706
if command == 'getattr':
1707
attrname = request[1]
1708
if callable(client_object.__getattribute__(attrname)):
1709
parent_pipe.send(('function',))
1710
else:
1711
parent_pipe.send(('data', client_object
1712
.__getattribute__(attrname)))
1713
1714
if command == 'setattr':
1715
attrname = request[1]
1716
value = request[2]
1717
setattr(client_object, attrname, value)
1718
1273
logger.debug(u"Handling IPC: FD = %d, condition = %s", source,
1274
conditions_string)
1275
1276
# Turn the pipe file descriptors into Python file objects
1277
if source not in file_objects:
1278
file_objects[source] = os.fdopen(source, u"r", 1)
1279
if reply_fd not in file_objects:
1280
file_objects[reply_fd] = os.fdopen(reply_fd, u"w", 0)
1281
1282
# Read a line from the file object
1283
cmdline = file_objects[source].readline()
1284
if not cmdline: # Empty line means end of file
1285
# close the IPC pipes
1286
file_objects[source].close()
1287
del file_objects[source]
1288
file_objects[reply_fd].close()
1289
del file_objects[reply_fd]
1290
1291
# Stop calling this function
1292
return False
1293
1294
logger.debug(u"IPC command: %r", cmdline)
1295
1296
# Parse and act on command
1297
cmd, args = cmdline.rstrip(u"\r\n").split(None, 1)
1298
1299
if cmd == u"NOTFOUND":
1300
fpr, address = args.split(None, 1)
1301
logger.warning(u"Client not found for fingerprint: %s, ad"
1302
u"dress: %s", fpr, address)
1303
if self.use_dbus:
1304
# Emit D-Bus signal
1305
mandos_dbus_service.ClientNotFound(fpr, address)
1306
elif cmd == u"DISABLED":
1307
for client in self.clients:
1308
if client.name == args:
1309
logger.warning(u"Client %s is disabled", args)
1310
if self.use_dbus:
1311
# Emit D-Bus signal
1312
client.Rejected()
1313
break
1314
else:
1315
logger.error(u"Unknown client %s is disabled", args)
1316
elif cmd == u"SENDING":
1317
for client in self.clients:
1318
if client.name == args:
1319
logger.info(u"Sending secret to %s", client.name)
1320
client.checked_ok()
1321
if self.use_dbus:
1322
# Emit D-Bus signal
1323
client.GotSecret()
1324
break
1325
else:
1326
logger.error(u"Sending secret to unknown client %s",
1327
args)
1328
elif cmd == u"GETATTR":
1329
attr_name, fpr = args.split(None, 1)
1330
for client in self.clients:
1331
if client.fingerprint == fpr:
1332
attr_value = getattr(client, attr_name, None)
1333
logger.debug("IPC reply: %r", attr_value)
1334
pickle.dump(attr_value, file_objects[reply_fd])
1335
break
1336
else:
1337
logger.error(u"Client %s on address %s requesting "
1338
u"attribute %s not found", fpr, address,
1339
attr_name)
1340
pickle.dump(None, file_objects[reply_fd])
1341
else:
1342
logger.error(u"Unknown IPC command: %r", cmdline)
1343
1344
# Keep calling this function
1719
1345
return True
1720
1346
1721
1347
1722
1348
def string_to_delta(interval):
1723
1349
"""Parse a string and return a datetime.timedelta
1724
1350
1725
>>> string_to_delta('7d')
1351
>>> string_to_delta(u'7d')
1726
1352
datetime.timedelta(7)
1727
>>> string_to_delta('60s')
1353
>>> string_to_delta(u'60s')
1728
1354
datetime.timedelta(0, 60)
1729
>>> string_to_delta('60m')
1355
>>> string_to_delta(u'60m')
1730
1356
datetime.timedelta(0, 3600)
1731
>>> string_to_delta('24h')
1357
>>> string_to_delta(u'24h')
1732
1358
datetime.timedelta(1)
1733
>>> string_to_delta('1w')
1359
>>> string_to_delta(u'1w')
1734
1360
datetime.timedelta(7)
1735
>>> string_to_delta('5m 30s')
1361
>>> string_to_delta(u'5m 30s')
1736
1362
datetime.timedelta(0, 330)
1737
1363
"""
1738
1364
timevalue = datetime.timedelta(0)
1740
1366
try:
1741
1367
suffix = unicode(s[-1])
1742
1368
value = int(s[:-1])
1743
if suffix == "d":
1369
if suffix == u"d":
1744
1370
delta = datetime.timedelta(value)
1745
elif suffix == "s":
1371
elif suffix == u"s":
1746
1372
delta = datetime.timedelta(0, value)
1747
elif suffix == "m":
1373
elif suffix == u"m":
1748
1374
delta = datetime.timedelta(0, 0, 0, 0, value)
1749
elif suffix == "h":
1375
elif suffix == u"h":
1750
1376
delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1751
elif suffix == "w":
1377
elif suffix == u"w":
1752
1378
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1753
1379
else:
1754
raise ValueError("Unknown suffix %r" % suffix)
1755
except (ValueError, IndexError) as e:
1756
raise ValueError(*(e.args))
1380
raise ValueError(u"Unknown suffix %r" % suffix)
1381
except (ValueError, IndexError), e:
1382
raise ValueError(e.message)
1757
1383
timevalue += delta
1758
1384
return timevalue
1759
1385
1765
1391
global if_nametoindex
1766
1392
try:
1767
1393
if_nametoindex = (ctypes.cdll.LoadLibrary
1768
(ctypes.util.find_library("c"))
1394
(ctypes.util.find_library(u"c"))
1769
1395
.if_nametoindex)
1770
1396
except (OSError, AttributeError):
1771
logger.warning("Doing if_nametoindex the hard way")
1397
logger.warning(u"Doing if_nametoindex the hard way")
1772
1398
def if_nametoindex(interface):
1773
1399
"Get an interface index the hard way, i.e. using fcntl()"
1774
1400
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
1775
1401
with contextlib.closing(socket.socket()) as s:
1776
1402
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
1777
struct.pack(str("16s16x"),
1403
struct.pack(str(u"16s16x"),
1778
1404
interface))
1779
interface_index = struct.unpack(str("I"),
1405
interface_index = struct.unpack(str(u"I"),
1780
1406
ifreq[16:20])[0]
1781
1407
return interface_index
1782
1408
return if_nametoindex(interface)
1790
1416
sys.exit()
1791
1417
os.setsid()
1792
1418
if not nochdir:
1793
os.chdir("/")
1419
os.chdir(u"/")
1794
1420
if os.fork():
1795
1421
sys.exit()
1796
1422
if not noclose:
1798
1424
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1799
1425
if not stat.S_ISCHR(os.fstat(null).st_mode):
1800
1426
raise OSError(errno.ENODEV,
1801
"%s not a character device"
1427
u"%s not a character device"
1802
1428
% os.path.devnull)
1803
1429
os.dup2(null, sys.stdin.fileno())
1804
1430
os.dup2(null, sys.stdout.fileno())
1812
1438
##################################################################
1813
1439
# Parsing of options, both command line and config file
1814
1440
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()
1441
parser = optparse.OptionParser(version = "%%prog %s" % version)
1442
parser.add_option("-i", u"--interface", type=u"string",
1443
metavar="IF", help=u"Bind to interface IF")
1444
parser.add_option("-a", u"--address", type=u"string",
1445
help=u"Address to listen for requests on")
1446
parser.add_option("-p", u"--port", type=u"int",
1447
help=u"Port number to receive requests on")
1448
parser.add_option("--check", action=u"store_true",
1449
help=u"Run self-test")
1450
parser.add_option("--debug", action=u"store_true",
1451
help=u"Debug mode; run in foreground and log to"
1452
u" terminal")
1453
parser.add_option("--priority", type=u"string", help=u"GnuTLS"
1454
u" priority string (see GnuTLS documentation)")
1455
parser.add_option("--servicename", type=u"string",
1456
metavar=u"NAME", help=u"Zeroconf service name")
1457
parser.add_option("--configdir", type=u"string",
1458
default=u"/etc/mandos", metavar=u"DIR",
1459
help=u"Directory to search for configuration"
1460
u" files")
1461
parser.add_option("--no-dbus", action=u"store_false",
1462
dest=u"use_dbus", help=u"Do not provide D-Bus"
1463
u" system bus interface")
1464
parser.add_option("--no-ipv6", action=u"store_false",
1465
dest=u"use_ipv6", help=u"Do not use IPv6")
1466
options = parser.parse_args()[0]
1846
1467
1847
1468
if options.check:
1848
1469
import doctest
1850
1471
sys.exit()
1851
1472
1852
1473
# 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": "",
1474
server_defaults = { u"interface": u"",
1475
u"address": u"",
1476
u"port": u"",
1477
u"debug": u"False",
1478
u"priority":
1479
u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
1480
u"servicename": u"Mandos",
1481
u"use_dbus": u"True",
1482
u"use_ipv6": u"True",
1863
1483
}
1864
1484
1865
1485
# Parse config file for server-global settings
1866
1486
server_config = configparser.SafeConfigParser(server_defaults)
1867
1487
del server_defaults
1868
1488
server_config.read(os.path.join(options.configdir,
1869
"mandos.conf"))
1489
u"mandos.conf"))
1870
1490
# Convert the SafeConfigParser object to a dict
1871
1491
server_settings = server_config.defaults()
1872
1492
# 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",
1493
for option in (u"debug", u"use_dbus", u"use_ipv6"):
1494
server_settings[option] = server_config.getboolean(u"DEFAULT",
1875
1495
option)
1876
1496
if server_settings["port"]:
1877
server_settings["port"] = server_config.getint("DEFAULT",
1878
"port")
1497
server_settings["port"] = server_config.getint(u"DEFAULT",
1498
u"port")
1879
1499
del server_config
1880
1500
1881
1501
# Override the settings from the config file with command line
1882
1502
# options, if set.
1883
for option in ("interface", "address", "port", "debug",
1884
"priority", "servicename", "configdir",
1885
"use_dbus", "use_ipv6", "debuglevel"):
1503
for option in (u"interface", u"address", u"port", u"debug",
1504
u"priority", u"servicename", u"configdir",
1505
u"use_dbus", u"use_ipv6"):
1886
1506
value = getattr(options, option)
1887
1507
if value is not None:
1888
1508
server_settings[option] = value
1896
1516
##################################################################
1897
1517
1898
1518
# 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":
1519
debug = server_settings[u"debug"]
1520
use_dbus = server_settings[u"use_dbus"]
1521
use_ipv6 = server_settings[u"use_ipv6"]
1522
1523
if not debug:
1524
syslogger.setLevel(logging.WARNING)
1525
console.setLevel(logging.WARNING)
1526
1527
if server_settings[u"servicename"] != u"Mandos":
1905
1528
syslogger.setFormatter(logging.Formatter
1906
('Mandos (%s) [%%(process)d]:'
1907
' %%(levelname)s: %%(message)s'
1908
% server_settings["servicename"]))
1529
(u'Mandos (%s) [%%(process)d]:'
1530
u' %%(levelname)s: %%(message)s'
1531
% server_settings[u"servicename"]))
1909
1532
1910
1533
# 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",
1534
client_defaults = { u"timeout": u"1h",
1535
u"interval": u"5m",
1536
u"checker": u"fping -q -- %%(host)s",
1537
u"host": u"",
1918
1538
}
1919
1539
client_config = configparser.SafeConfigParser(client_defaults)
1920
client_config.read(os.path.join(server_settings["configdir"],
1921
"clients.conf"))
1540
client_config.read(os.path.join(server_settings[u"configdir"],
1541
u"clients.conf"))
1922
1542
1923
1543
global mandos_dbus_service
1924
1544
mandos_dbus_service = None
1925
1545
1926
tcp_server = MandosServer((server_settings["address"],
1927
server_settings["port"]),
1546
tcp_server = MandosServer((server_settings[u"address"],
1547
server_settings[u"port"]),
1928
1548
ClientHandler,
1929
interface=(server_settings["interface"]
1930
or None),
1549
interface=server_settings[u"interface"],
1931
1550
use_ipv6=use_ipv6,
1932
1551
gnutls_priority=
1933
server_settings["priority"],
1552
server_settings[u"priority"],
1934
1553
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)
1554
pidfilename = u"/var/run/mandos.pid"
1555
try:
1556
pidfile = open(pidfilename, u"w")
1557
except IOError:
1558
logger.error(u"Could not open file %r", pidfilename)
1941
1559
1942
1560
try:
1943
uid = pwd.getpwnam("_mandos").pw_uid
1944
gid = pwd.getpwnam("_mandos").pw_gid
1561
uid = pwd.getpwnam(u"_mandos").pw_uid
1562
gid = pwd.getpwnam(u"_mandos").pw_gid
1945
1563
except KeyError:
1946
1564
try:
1947
uid = pwd.getpwnam("mandos").pw_uid
1948
gid = pwd.getpwnam("mandos").pw_gid
1565
uid = pwd.getpwnam(u"mandos").pw_uid
1566
gid = pwd.getpwnam(u"mandos").pw_gid
1949
1567
except KeyError:
1950
1568
try:
1951
uid = pwd.getpwnam("nobody").pw_uid
1952
gid = pwd.getpwnam("nobody").pw_gid
1569
uid = pwd.getpwnam(u"nobody").pw_uid
1570
gid = pwd.getpwnam(u"nobody").pw_gid
1953
1571
except KeyError:
1954
1572
uid = 65534
1955
1573
gid = 65534
1956
1574
try:
1957
1575
os.setgid(gid)
1958
1576
os.setuid(uid)
1959
except OSError as error:
1577
except OSError, error:
1960
1578
if error[0] != errno.EPERM:
1961
1579
raise error
1962
1580
1963
if not debug and not debuglevel:
1964
syslogger.setLevel(logging.WARNING)
1965
console.setLevel(logging.WARNING)
1966
if debuglevel:
1967
level = getattr(logging, debuglevel.upper())
1968
syslogger.setLevel(level)
1969
console.setLevel(level)
1970
1581
# Enable all possible GnuTLS debugging
1971
1582
if debug:
1972
# Enable all possible GnuTLS debugging
1973
1974
1583
# "Use a log level over 10 to enable all debugging options."
1975
1584
# - GnuTLS manual
1976
1585
gnutls.library.functions.gnutls_global_set_log_level(11)
1977
1586
1978
1587
@gnutls.library.types.gnutls_log_func
1979
1588
def debug_gnutls(level, string):
1980
logger.debug("GnuTLS: %s", string[:-1])
1589
logger.debug(u"GnuTLS: %s", string[:-1])
1981
1590
1982
1591
(gnutls.library.functions
1983
1592
.gnutls_global_set_log_function(debug_gnutls))
1984
1985
# Redirect stdin so all checkers get /dev/null
1986
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1987
os.dup2(null, sys.stdin.fileno())
1988
if null > 2:
1989
os.close(null)
1990
else:
1991
# No console logging
1992
logger.removeHandler(console)
1993
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
1593
1999
1594
global main_loop
2000
1595
# From the Avahi example code
2004
1599
# End of Avahi example code
2005
1600
if use_dbus:
2006
1601
try:
2007
bus_name = dbus.service.BusName("se.recompile.Mandos",
1602
bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2008
1603
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")
1604
except dbus.exceptions.NameExistsException, e:
1605
logger.error(unicode(e) + u", disabling D-Bus")
2014
1606
use_dbus = False
2015
server_settings["use_dbus"] = False
1607
server_settings[u"use_dbus"] = False
2016
1608
tcp_server.use_dbus = False
2017
1609
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2018
service = AvahiService(name = server_settings["servicename"],
2019
servicetype = "_mandos._tcp",
1610
service = AvahiService(name = server_settings[u"servicename"],
1611
servicetype = u"_mandos._tcp",
2020
1612
protocol = protocol, bus = bus)
2021
1613
if server_settings["interface"]:
2022
1614
service.interface = (if_nametoindex
2023
(str(server_settings["interface"])))
2024
2025
global multiprocessing_manager
2026
multiprocessing_manager = multiprocessing.Manager()
1615
(str(server_settings[u"interface"])))
2027
1616
2028
1617
client_class = Client
2029
1618
if use_dbus:
2030
client_class = functools.partial(ClientDBusTransitional,
2031
bus = bus)
2032
def client_config_items(config, section):
2033
special_settings = {
2034
"approved_by_default":
2035
lambda: config.getboolean(section,
2036
"approved_by_default"),
2037
}
2038
for name, value in config.items(section):
2039
try:
2040
yield (name, special_settings[name]())
2041
except KeyError:
2042
yield (name, value)
2043
1619
client_class = functools.partial(ClientDBus, bus = bus)
2044
1620
tcp_server.clients.update(set(
2045
1621
client_class(name = section,
2046
config= dict(client_config_items(
2047
client_config, section)))
1622
config= dict(client_config.items(section)))
2048
1623
for section in client_config.sections()))
2049
1624
if not tcp_server.clients:
2050
logger.warning("No clients defined")
2051
1625
logger.warning(u"No clients defined")
1626
1627
if debug:
1628
# Redirect stdin so all checkers get /dev/null
1629
null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1630
os.dup2(null, sys.stdin.fileno())
1631
if null > 2:
1632
os.close(null)
1633
else:
1634
# No console logging
1635
logger.removeHandler(console)
1636
# Close all input and output, do double fork, etc.
1637
daemon()
1638
1639
try:
1640
with pidfile:
1641
pid = os.getpid()
1642
pidfile.write(str(pid) + "\n")
1643
del pidfile
1644
except IOError:
1645
logger.error(u"Could not write to file %r with PID %d",
1646
pidfilename, pid)
1647
except NameError:
1648
# "pidfile" was never created
1649
pass
1650
del pidfilename
1651
2052
1652
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
1653
signal.signal(signal.SIGINT, signal.SIG_IGN)
2067
2068
1654
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2069
1655
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2070
1656
2072
1658
class MandosDBusService(dbus.service.Object):
2073
1659
"""A D-Bus proxy object"""
2074
1660
def __init__(self):
2075
dbus.service.Object.__init__(self, bus, "/")
2076
_interface = "se.recompile.Mandos"
1661
dbus.service.Object.__init__(self, bus, u"/")
1662
_interface = u"se.bsnet.fukt.Mandos"
2077
1663
2078
@dbus.service.signal(_interface, signature="o")
1664
@dbus.service.signal(_interface, signature=u"o")
2079
1665
def ClientAdded(self, objpath):
2080
1666
"D-Bus signal"
2081
1667
pass
2082
1668
2083
@dbus.service.signal(_interface, signature="ss")
1669
@dbus.service.signal(_interface, signature=u"ss")
2084
1670
def ClientNotFound(self, fingerprint, address):
2085
1671
"D-Bus signal"
2086
1672
pass
2087
1673
2088
@dbus.service.signal(_interface, signature="os")
1674
@dbus.service.signal(_interface, signature=u"os")
2089
1675
def ClientRemoved(self, objpath, name):
2090
1676
"D-Bus signal"
2091
1677
pass
2092
1678
2093
@dbus.service.method(_interface, out_signature="ao")
1679
@dbus.service.method(_interface, out_signature=u"ao")
2094
1680
def GetAllClients(self):
2095
1681
"D-Bus method"
2096
1682
return dbus.Array(c.dbus_object_path
2097
1683
for c in tcp_server.clients)
2098
1684
2099
1685
@dbus.service.method(_interface,
2100
out_signature="a{oa{sv}}")
1686
out_signature=u"a{oa{sv}}")
2101
1687
def GetAllClientsWithProperties(self):
2102
1688
"D-Bus method"
2103
1689
return dbus.Dictionary(
2104
((c.dbus_object_path, c.GetAll(""))
1690
((c.dbus_object_path, c.GetAll(u""))
2105
1691
for c in tcp_server.clients),
2106
signature="oa{sv}")
1692
signature=u"oa{sv}")
2107
1693
2108
@dbus.service.method(_interface, in_signature="o")
1694
@dbus.service.method(_interface, in_signature=u"o")
2109
1695
def RemoveClient(self, object_path):
2110
1696
"D-Bus method"
2111
1697
for c in tcp_server.clients:
2121
1707
2122
1708
del _interface
2123
1709
2124
class MandosDBusServiceTransitional(MandosDBusService):
2125
__metaclass__ = AlternateDBusNamesMetaclass
2126
mandos_dbus_service = MandosDBusServiceTransitional()
1710
mandos_dbus_service = MandosDBusService()
2127
1711
2128
1712
def cleanup():
2129
1713
"Cleanup function; run on exit"
2138
1722
client.disable(quiet=True)
2139
1723
if use_dbus:
2140
1724
# Emit D-Bus signal
2141
mandos_dbus_service.ClientRemoved(client
2142
.dbus_object_path,
1725
mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2143
1726
client.name)
2144
1727
2145
1728
atexit.register(cleanup)
2156
1739
# Find out what port we got
2157
1740
service.port = tcp_server.socket.getsockname()[1]
2158
1741
if use_ipv6:
2159
logger.info("Now listening on address %r, port %d,"
1742
logger.info(u"Now listening on address %r, port %d,"
2160
1743
" flowinfo %d, scope_id %d"
2161
1744
% tcp_server.socket.getsockname())
2162
1745
else: # IPv4
2163
logger.info("Now listening on address %r, port %d"
1746
logger.info(u"Now listening on address %r, port %d"
2164
1747
% tcp_server.socket.getsockname())
2165
1748
2166
1749
#service.interface = tcp_server.socket.getsockname()[3]
2169
1752
# From the Avahi example code
2170
1753
try:
2171
1754
service.activate()
2172
except dbus.exceptions.DBusException as error:
2173
logger.critical("DBusException: %s", error)
1755
except dbus.exceptions.DBusException, error:
1756
logger.critical(u"DBusException: %s", error)
2174
1757
cleanup()
2175
1758
sys.exit(1)
2176
1759
# End of Avahi example code
2180
1763
(tcp_server.handle_request
2181
1764
(*args[2:], **kwargs) or True))
2182
1765
2183
logger.debug("Starting main loop")
1766
logger.debug(u"Starting main loop")
2184
1767
main_loop.run()
2185
except AvahiError as error:
2186
logger.critical("AvahiError: %s", error)
1768
except AvahiError, error:
1769
logger.critical(u"AvahiError: %s", error)
2187
1770
cleanup()
2188
1771
sys.exit(1)
2189
1772
except KeyboardInterrupt:
2190
1773
if debug:
2191
print("", file=sys.stderr)
2192
logger.debug("Server received KeyboardInterrupt")
2193
logger.debug("Server exiting")
1774
print >> sys.stderr
1775
logger.debug(u"Server received KeyboardInterrupt")
1776
logger.debug(u"Server exiting")
2194
1777
# Must run before the D-Bus bus name gets deregistered
2195
1778
cleanup()
2196
1779
2197
2198
1780
if __name__ == '__main__':
2199
1781
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0