/mandos/trunk : revision 559

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# "AvahiService" class, and some lines in "main".

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#

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# Everything else is

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#

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

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

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import cPickle as pickle

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import multiprocessing

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import types

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import binascii

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import tempfile

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import dbus

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import dbus.service

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import ctypes.util

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import xml.dom.minidom

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import inspect

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import GnuPGInterface

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try:

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SO_BINDTODEVICE = socket.SO_BINDTODEVICE

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except ImportError:

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SO_BINDTODEVICE = None

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version = "1.3.1"

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#logger = logging.getLogger('mandos')

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logger = logging.Logger('mandos')

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version = "1.5.3"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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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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syslogger.setFormatter(logging.Formatter

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

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' %(message)s'))

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logger.addHandler(syslogger)

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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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logger.addHandler(console)

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try:

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if_nametoindex = (ctypes.cdll.LoadLibrary

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

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.if_nametoindex)

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except (OSError, AttributeError):

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def if_nametoindex(interface):

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

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

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

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ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

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

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interface))

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

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ifreq[16:20])[0]

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return interface_index

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def initlogger(debug, level=logging.WARNING):

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"""init logger and add loglevel"""

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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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logger.addHandler(syslogger)

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if debug:

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console = logging.StreamHandler()

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console.setFormatter(logging.Formatter('%(asctime)s %(name)s'

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' [%(process)d]:'

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' %(levelname)s:'

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' %(message)s'))

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logger.addHandler(console)

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logger.setLevel(level)

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class PGPError(Exception):

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"""Exception if encryption/decryption fails"""

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pass

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class PGPEngine(object):

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"""A simple class for OpenPGP symmetric encryption & decryption"""

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def __init__(self):

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self.gnupg = GnuPGInterface.GnuPG()

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self.tempdir = tempfile.mkdtemp(prefix="mandos-")

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self.gnupg = GnuPGInterface.GnuPG()

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self.gnupg.options.meta_interactive = False

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self.gnupg.options.homedir = self.tempdir

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self.gnupg.options.extra_args.extend(['--force-mdc',

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'--quiet',

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'--no-use-agent'])

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def __enter__(self):

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return self

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def __exit__ (self, exc_type, exc_value, traceback):

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self._cleanup()

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return False

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def __del__(self):

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self._cleanup()

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def _cleanup(self):

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if self.tempdir is not None:

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# Delete contents of tempdir

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for root, dirs, files in os.walk(self.tempdir,

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topdown = False):

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for filename in files:

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os.remove(os.path.join(root, filename))

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for dirname in dirs:

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os.rmdir(os.path.join(root, dirname))

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# Remove tempdir

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os.rmdir(self.tempdir)

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self.tempdir = None

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def password_encode(self, password):

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# Passphrase can not be empty and can not contain newlines or

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# NUL bytes. So we prefix it and hex encode it.

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return b"mandos" + binascii.hexlify(password)

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def encrypt(self, data, password):

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self.gnupg.passphrase = self.password_encode(password)

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with open(os.devnull) as devnull:

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try:

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proc = self.gnupg.run(['--symmetric'],

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create_fhs=['stdin', 'stdout'],

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attach_fhs={'stderr': devnull})

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with contextlib.closing(proc.handles['stdin']) as f:

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f.write(data)

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with contextlib.closing(proc.handles['stdout']) as f:

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ciphertext = f.read()

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proc.wait()

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except IOError as e:

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raise PGPError(e)

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self.gnupg.passphrase = None

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return ciphertext

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def decrypt(self, data, password):

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self.gnupg.passphrase = self.password_encode(password)

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with open(os.devnull) as devnull:

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try:

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proc = self.gnupg.run(['--decrypt'],

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create_fhs=['stdin', 'stdout'],

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attach_fhs={'stderr': devnull})

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with contextlib.closing(proc.handles['stdin'] ) as f:

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f.write(data)

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with contextlib.closing(proc.handles['stdout']) as f:

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decrypted_plaintext = f.read()

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proc.wait()

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except IOError as e:

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raise PGPError(e)

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self.gnupg.passphrase = None

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return decrypted_plaintext

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class AvahiError(Exception):

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def __init__(self, value, *args, **kwargs):

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" 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.GetAlternativeServiceName(self.name))

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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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syslogger.setFormatter(logging.Formatter

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

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

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% self.name))

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self.remove()

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try:

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self.add()

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avahi.DBUS_INTERFACE_ENTRY_GROUP)

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self.entry_group_state_changed_match = (

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self.group.connect_to_signal(

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'StateChanged', self .entry_group_state_changed))

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'StateChanged', self.entry_group_state_changed))

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

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self.name, self.type)

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self.group.AddService(

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try:

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self.group.Free()

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except (dbus.exceptions.UnknownMethodException,

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dbus.exceptions.DBusException) as e:

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dbus.exceptions.DBusException):

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pass

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self.group = None

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self.remove()

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self.server_state_changed)

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

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class AvahiServiceToSyslog(AvahiService):

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def rename(self):

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"""Add the new name to the syslog messages"""

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ret = AvahiService.rename(self)

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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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% self.name))

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return ret

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def _timedelta_to_milliseconds(td):

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def timedelta_to_milliseconds(td):

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"Convert a datetime.timedelta() to milliseconds"

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

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+ (td.seconds * 1000)

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

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Attributes:

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

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

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

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

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

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

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checker_initiator_tag: a gobject event source tag, or None

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

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client_structure: Object describing what attributes a client has

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and is used for storing the client at exit

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current_checker_command: string; current running checker_command

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

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disable_initiator_tag: a gobject event source tag, or None

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enabled: bool()

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

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

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

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

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last_enabled: datetime.datetime(); (UTC)

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last_checker_status: integer between 0 and 255 reflecting exit

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status of last checker. -1 reflects crashed

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checker, -2 means no checker completed yet.

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

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

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

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until this client is disabled

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extended_timeout: extra long timeout when password has been sent

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extended_timeout: extra long timeout when secret has been sent

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runtime_expansions: Allowed attributes for runtime expansion.

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

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disabled, or None

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

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

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

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

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"extended_timeout": "15m",

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"interval": "2m",

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

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"host": "",

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"approval_delay": "0s",

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"approval_duration": "1s",

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"approved_by_default": "True",

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"enabled": "True",

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}

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def timeout_milliseconds(self):

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"Return the 'timeout' attribute in milliseconds"

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return _timedelta_to_milliseconds(self.timeout)

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return timedelta_to_milliseconds(self.timeout)

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def extended_timeout_milliseconds(self):

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"Return the 'extended_timeout' attribute in milliseconds"

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return _timedelta_to_milliseconds(self.extended_timeout)

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return timedelta_to_milliseconds(self.extended_timeout)

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def interval_milliseconds(self):

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"Return the 'interval' attribute in milliseconds"

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return _timedelta_to_milliseconds(self.interval)

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return timedelta_to_milliseconds(self.interval)

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def approval_delay_milliseconds(self):

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return _timedelta_to_milliseconds(self.approval_delay)

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

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return timedelta_to_milliseconds(self.approval_delay)

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@staticmethod

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def config_parser(config):

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"""Construct a new dict of client settings of this form:

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{ client_name: {setting_name: value, ...}, ...}

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with exceptions for any special settings as defined above.

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NOTE: Must be a pure function. Must return the same result

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value given the same arguments.

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"""

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settings = {}

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for client_name in config.sections():

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section = dict(config.items(client_name))

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client = settings[client_name] = {}

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client["host"] = section["host"]

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# Reformat values from string types to Python types

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client["approved_by_default"] = config.getboolean(

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client_name, "approved_by_default")

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

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"enabled")

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

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.replace(" ", ""))

483

if "secret" in section:

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client["secret"] = section["secret"].decode("base64")

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elif "secfile" in section:

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

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(section["secfile"])),

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"rb") as secfile:

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client["secret"] = secfile.read()

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else:

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

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% section)

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client["timeout"] = string_to_delta(section["timeout"])

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client["extended_timeout"] = string_to_delta(

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section["extended_timeout"])

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client["interval"] = string_to_delta(section["interval"])

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client["approval_delay"] = string_to_delta(

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section["approval_delay"])

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client["approval_duration"] = string_to_delta(

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section["approval_duration"])

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client["checker_command"] = section["checker"]

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client["last_approval_request"] = None

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client["last_checked_ok"] = None

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client["last_checker_status"] = -2

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return settings

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def __init__(self, settings, name = None):

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

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'checker_command' attribute and *not* the 'checker'

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attribute."""

337

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self.name = name

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if config is None:

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config = {}

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# adding all client settings

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for setting, value in settings.iteritems():

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setattr(self, setting, value)

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if self.enabled:

519

if not hasattr(self, "last_enabled"):

520

self.last_enabled = datetime.datetime.utcnow()

521

if not hasattr(self, "expires"):

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

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+ self.timeout)

524

else:

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self.last_enabled = None

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self.expires = None

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

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529

# Uppercase and remove spaces from fingerprint for later

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# comparison purposes with return value from the fingerprint()

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531

# function

344

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

345

.replace(" ", ""))

346

532

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

347

if "secret" in config:

348

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

349

elif "secfile" in config:

350

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

351

(config["secfile"])),

352

"rb") as secfile:

353

self.secret = secfile.read()

354

else:

355

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

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% self.name)

357

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

358

self.created = datetime.datetime.utcnow()

359

self.enabled = False

360

self.last_approval_request = None

361

self.last_enabled = None

362

self.last_checked_ok = None

363

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

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

365

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

366

self.disable_hook = disable_hook

533

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

534

datetime.datetime.utcnow())

535

536

# attributes specific for this server instance

367

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self.checker = None

368

538

self.checker_initiator_tag = None

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539

self.disable_initiator_tag = None

370

self.expires = None

371

540

self.checker_callback_tag = None

372

self.checker_command = config["checker"]

373

541

self.current_checker_command = None

374

self.last_connect = None

375

self._approved = None

376

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

377

True)

542

self.approved = None

378

543

self.approvals_pending = 0

379

self.approval_delay = string_to_delta(

380

config["approval_delay"])

381

self.approval_duration = string_to_delta(

382

config["approval_duration"])

383

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

544

self.changedstate = (multiprocessing_manager

545

.Condition(multiprocessing_manager

546

.Lock()))

547

self.client_structure = [attr for attr in

548

self.__dict__.iterkeys()

549

if not attr.startswith("_")]

550

self.client_structure.append("client_structure")

551

552

for name, t in inspect.getmembers(type(self),

553

lambda obj:

554

isinstance(obj,

555

property)):

556

if not name.startswith("_"):

557

self.client_structure.append(name)

384

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559

# Send notice to process children that client state has changed

385

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def send_changedstate(self):

386

self.changedstate.acquire()

387

self.changedstate.notify_all()

388

self.changedstate.release()

389

561

with self.changedstate:

562

self.changedstate.notify_all()

563

390

564

def enable(self):

391

565

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

392

566

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

393

567

# Already enabled

394

568

return

395

569

self.send_changedstate()

396

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

397

# and every interval from then on.

398

self.checker_initiator_tag = (gobject.timeout_add

399

(self.interval_milliseconds(),

400

self.start_checker))

401

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

402

570

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

403

self.disable_initiator_tag = (gobject.timeout_add

404

(self.timeout_milliseconds(),

405

self.disable))

406

571

self.enabled = True

407

572

self.last_enabled = datetime.datetime.utcnow()

408

# Also start a new checker *right now*.

409

self.start_checker()

573

self.init_checker()

410

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411

575

def disable(self, quiet=True):

412

576

"""Disable this client."""

424

588

gobject.source_remove(self.checker_initiator_tag)

425

589

self.checker_initiator_tag = None

426

590

self.stop_checker()

427

if self.disable_hook:

428

self.disable_hook(self)

429

591

self.enabled = False

430

592

# Do not run this again if called by a gobject.timeout_add

431

593

return False

432

594

433

595

def __del__(self):

434

self.disable_hook = None

435

596

self.disable()

436

597

598

def init_checker(self):

599

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

600

# and every interval from then on.

601

self.checker_initiator_tag = (gobject.timeout_add

602

(self.interval_milliseconds(),

603

self.start_checker))

604

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

605

self.disable_initiator_tag = (gobject.timeout_add

606

(self.timeout_milliseconds(),

607

self.disable))

608

# Also start a new checker *right now*.

609

self.start_checker()

610

437

611

def checker_callback(self, pid, condition, command):

438

612

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

439

613

self.checker_callback_tag = None

440

614

self.checker = None

441

615

if os.WIFEXITED(condition):

442

exitstatus = os.WEXITSTATUS(condition)

443

if exitstatus == 0:

616

self.last_checker_status = os.WEXITSTATUS(condition)

617

if self.last_checker_status == 0:

444

618

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

445

619

vars(self))

446

620

self.checked_ok()

448

622

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

449

623

vars(self))

450

624

else:

625

self.last_checker_status = -1

451

626

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

452

627

vars(self))

453

628

454

def checked_ok(self, timeout=None):

455

"""Bump up the timeout for this client.

456

457

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

458

alive and well.

459

"""

629

def checked_ok(self):

630

"""Assert that the client has been seen, alive and well."""

631

self.last_checked_ok = datetime.datetime.utcnow()

632

self.last_checker_status = 0

633

self.bump_timeout()

634

635

def bump_timeout(self, timeout=None):

636

"""Bump up the timeout for this client."""

460

637

if timeout is None:

461

638

timeout = self.timeout

462

self.last_checked_ok = datetime.datetime.utcnow()

463

gobject.source_remove(self.disable_initiator_tag)

464

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

465

self.disable_initiator_tag = (gobject.timeout_add

466

(_timedelta_to_milliseconds(timeout),

467

self.disable))

639

if self.disable_initiator_tag is not None:

640

gobject.source_remove(self.disable_initiator_tag)

641

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

642

self.disable_initiator_tag = (gobject.timeout_add

643

(timedelta_to_milliseconds

644

(timeout), self.disable))

645

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

468

646

469

647

def need_approval(self):

470

648

self.last_approval_request = datetime.datetime.utcnow()

629

807

"""

630

808

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

631

809

for cls in self.__class__.__mro__

632

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

810

for name, prop in

811

inspect.getmembers(cls, self._is_dbus_property))

633

812

634

813

def _get_dbus_property(self, interface_name, property_name):

635

814

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

636

815

property with the specified name and interface.

637

816

"""

638

817

for cls in self.__class__.__mro__:

639

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

640

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

818

for name, value in (inspect.getmembers

819

(cls, self._is_dbus_property)):

820

if (value._dbus_name == property_name

821

and value._dbus_interface == interface_name):

641

822

return value.__get__(self)

642

823

643

824

# No such property

670

851

# signatures other than "ay".

671

852

if prop._dbus_signature != "ay":

672

853

raise ValueError

673

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

674

for byte in value))

854

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

855

for byte in value))

675

856

prop(value)

676

857

677

858

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

682

863

683

864

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

684

865

"""

685

all = {}

866

properties = {}

686

867

for name, prop in self._get_all_dbus_properties():

687

868

if (interface_name

688

869

and interface_name != prop._dbus_interface):

693

874

continue

694

875

value = prop()

695

876

if not hasattr(value, "variant_level"):

696

all[name] = value

877

properties[name] = value

697

878

continue

698

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

699

value.variant_level+1)

700

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

879

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

880

value.variant_level+1)

881

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

701

882

702

883

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

703

884

out_signature="s",

754

935

return dbus.String(dt.isoformat(),

755

936

variant_level=variant_level)

756

937

757

class AlternateDBusNamesMetaclass(DBusObjectWithProperties.__metaclass__):

938

939

class AlternateDBusNamesMetaclass(DBusObjectWithProperties

940

.__metaclass__):

758

941

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

759

942

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

760

943

"""

850

1033

attribute.func_closure)))

851

1034

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

852

1035

1036

853

1037

class ClientDBus(Client, DBusObjectWithProperties):

854

1038

"""A Client class using D-Bus

855

1039

864

1048

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

865

1049

866

1050

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

867

self._approvals_pending = 0

868

1051

self.bus = bus

869

1052

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

870

1053

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

882

1065

variant_level=1):

883

1066

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

884

1067

its changes to DBus.

885

886

transform_fun: Function that takes a value and transforms it

887

to a D-Bus type.

1068

1069

transform_fun: Function that takes a value and a variant_level

1070

and transforms it to a D-Bus type.

888

1071

dbus_name: D-Bus name of the variable

889

1072

type_func: Function that transform the value before sending it

890

1073

to the D-Bus. Default: no transform

891

1074

variant_level: D-Bus variant level. Default: 1

892

1075

"""

893

real_value = [None,]

1076

attrname = "_{0}".format(dbus_name)

894

1077

def setter(self, value):

895

old_value = real_value[0]

896

real_value[0] = value

897

1078

if hasattr(self, "dbus_object_path"):

898

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

899

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

900

variant_level)

1079

if (not hasattr(self, attrname) or

1080

type_func(getattr(self, attrname, None))

1081

!= type_func(value)):

1082

dbus_value = transform_func(type_func(value),

1083

variant_level

1084

=variant_level)

901

1085

self.PropertyChanged(dbus.String(dbus_name),

902

1086

dbus_value)

1087

setattr(self, attrname, value)

903

1088

904

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

1089

return property(lambda self: getattr(self, attrname), setter)

905

1090

906

1091

907

1092

expires = notifychangeproperty(datetime_to_dbus, "Expires")

912

1097

last_enabled = notifychangeproperty(datetime_to_dbus,

913

1098

"LastEnabled")

914

1099

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

915

type_func = lambda checker: checker is not None)

1100

type_func = lambda checker:

1101

checker is not None)

916

1102

last_checked_ok = notifychangeproperty(datetime_to_dbus,

917

1103

"LastCheckedOK")

918

last_approval_request = notifychangeproperty(datetime_to_dbus,

919

"LastApprovalRequest")

1104

last_checker_status = notifychangeproperty(dbus.Int16,

1105

"LastCheckerStatus")

1106

last_approval_request = notifychangeproperty(

1107

datetime_to_dbus, "LastApprovalRequest")

920

1108

approved_by_default = notifychangeproperty(dbus.Boolean,

921

1109

"ApprovedByDefault")

922

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

923

type_func = _timedelta_to_milliseconds)

924

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

925

type_func = _timedelta_to_milliseconds)

1110

approval_delay = notifychangeproperty(dbus.UInt64,

1111

"ApprovalDelay",

1112

type_func =

1113

timedelta_to_milliseconds)

1114

approval_duration = notifychangeproperty(

1115

dbus.UInt64, "ApprovalDuration",

1116

type_func = timedelta_to_milliseconds)

926

1117

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

927

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

928

type_func = _timedelta_to_milliseconds)

929

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

930

type_func = _timedelta_to_milliseconds)

931

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

932

type_func = _timedelta_to_milliseconds)

1118

timeout = notifychangeproperty(dbus.UInt64, "Timeout",

1119

type_func =

1120

timedelta_to_milliseconds)

1121

extended_timeout = notifychangeproperty(

1122

dbus.UInt64, "ExtendedTimeout",

1123

type_func = timedelta_to_milliseconds)

1124

interval = notifychangeproperty(dbus.UInt64,

1125

"Interval",

1126

type_func =

1127

timedelta_to_milliseconds)

933

1128

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

934

1129

935

1130

del notifychangeproperty

977

1172

return r

978

1173

979

1174

def _reset_approved(self):

980

self._approved = None

1175

self.approved = None

981

1176

return False

982

1177

983

1178

def approve(self, value=True):

984

1179

self.send_changedstate()

985

self._approved = value

986

gobject.timeout_add(_timedelta_to_milliseconds

1180

self.approved = value

1181

gobject.timeout_add(timedelta_to_milliseconds

987

1182

(self.approval_duration),

988

1183

self._reset_approved)

989

1184

1095

1290

access="readwrite")

1096

1291

def ApprovalDuration_dbus_property(self, value=None):

1097

1292

if value is None: # get

1098

return dbus.UInt64(_timedelta_to_milliseconds(

1293

return dbus.UInt64(timedelta_to_milliseconds(

1099

1294

self.approval_duration))

1100

1295

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

1101

1296

1115

1310

def Host_dbus_property(self, value=None):

1116

1311

if value is None: # get

1117

1312

return dbus.String(self.host)

1118

self.host = value

1313

self.host = unicode(value)

1119

1314

1120

1315

# Created - property

1121

1316

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

1122

1317

def Created_dbus_property(self):

1123

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

1318

return datetime_to_dbus(self.created)

1124

1319

1125

1320

# LastEnabled - property

1126

1321

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

1147

1342

return

1148

1343

return datetime_to_dbus(self.last_checked_ok)

1149

1344

1345

# LastCheckerStatus - property

1346

@dbus_service_property(_interface, signature="n",

1347

access="read")

1348

def LastCheckerStatus_dbus_property(self):

1349

return dbus.Int16(self.last_checker_status)

1350

1150

1351

# Expires - property

1151

1352

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

1152

1353

def Expires_dbus_property(self):

1164

1365

if value is None: # get

1165

1366

return dbus.UInt64(self.timeout_milliseconds())

1166

1367

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

1167

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

1168

return

1169

1368

# Reschedule timeout

1170

gobject.source_remove(self.disable_initiator_tag)

1171

self.disable_initiator_tag = None

1172

self.expires = None

1173

time_to_die = (self.

1174

_timedelta_to_milliseconds((self

1175

.last_checked_ok

1176

+ self.timeout)

1177

- datetime.datetime

1178

.utcnow()))

1179

if time_to_die <= 0:

1180

# The timeout has passed

1181

self.disable()

1182

else:

1183

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

1184

+ datetime.timedelta(milliseconds = time_to_die))

1185

self.disable_initiator_tag = (gobject.timeout_add

1186

(time_to_die, self.disable))

1369

if self.enabled:

1370

now = datetime.datetime.utcnow()

1371

time_to_die = timedelta_to_milliseconds(

1372

(self.last_checked_ok + self.timeout) - now)

1373

if time_to_die <= 0:

1374

# The timeout has passed

1375

self.disable()

1376

else:

1377

self.expires = (now +

1378

datetime.timedelta(milliseconds =

1379

time_to_die))

1380

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

1381

is None):

1382

return

1383

gobject.source_remove(self.disable_initiator_tag)

1384

self.disable_initiator_tag = (gobject.timeout_add

1385

(time_to_die,

1386

self.disable))

1187

1387

1188

1388

# ExtendedTimeout - property

1189

1389

@dbus_service_property(_interface, signature="t",

1202

1402

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

1203

1403

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

1204

1404

return

1205

# Reschedule checker run

1206

gobject.source_remove(self.checker_initiator_tag)

1207

self.checker_initiator_tag = (gobject.timeout_add

1208

(value, self.start_checker))

1209

self.start_checker() # Start one now, too

1405

if self.enabled:

1406

# Reschedule checker run

1407

gobject.source_remove(self.checker_initiator_tag)

1408

self.checker_initiator_tag = (gobject.timeout_add

1409

(value, self.start_checker))

1410

self.start_checker() # Start one now, too

1210

1411

1211

1412

# Checker - property

1212

1413

@dbus_service_property(_interface, signature="s",

1214

1415

def Checker_dbus_property(self, value=None):

1215

1416

if value is None: # get

1216

1417

return dbus.String(self.checker_command)

1217

self.checker_command = value

1418

self.checker_command = unicode(value)

1218

1419

1219

1420

# CheckerRunning - property

1220

1421

@dbus_service_property(_interface, signature="b",

1249

1450

raise KeyError()

1250

1451

1251

1452

def __getattribute__(self, name):

1252

if(name == '_pipe'):

1453

if name == '_pipe':

1253

1454

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

1254

1455

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

1255

1456

data = self._pipe.recv()

1262

1463

return func

1263

1464

1264

1465

def __setattr__(self, name, value):

1265

if(name == '_pipe'):

1466

if name == '_pipe':

1266

1467

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

1267

1468

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

1268

1469

1470

1269

1471

class ClientDBusTransitional(ClientDBus):

1270

1472

__metaclass__ = AlternateDBusNamesMetaclass

1271

1473

1474

1272

1475

class ClientHandler(socketserver.BaseRequestHandler, object):

1273

1476

"""A class to handle client connections.

1274

1477

1353

1556

client.name)

1354

1557

if self.server.use_dbus:

1355

1558

# Emit D-Bus signal

1356

client.Rejected("Disabled")

1559

client.Rejected("Disabled")

1357

1560

return

1358

1561

1359

if client._approved or not client.approval_delay:

1562

if client.approved or not client.approval_delay:

1360

1563

#We are approved or approval is disabled

1361

1564

break

1362

elif client._approved is None:

1565

elif client.approved is None:

1363

1566

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

1364

1567

client.name)

1365

1568

if self.server.use_dbus:

1376

1579

return

1377

1580

1378

1581

#wait until timeout or approved

1379

#x = float(client._timedelta_to_milliseconds(delay))

1380

1582

time = datetime.datetime.now()

1381

1583

client.changedstate.acquire()

1382

client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))

1584

(client.changedstate.wait

1585

(float(client.timedelta_to_milliseconds(delay)

1586

/ 1000)))

1383

1587

client.changedstate.release()

1384

1588

time2 = datetime.datetime.now()

1385

1589

if (time2 - time) >= delay:

1409

1613

sent_size += sent

1410

1614

1411

1615

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

1412

# bump the timeout as if seen

1413

client.checked_ok(client.extended_timeout)

1616

# bump the timeout using extended_timeout

1617

client.bump_timeout(client.extended_timeout)

1414

1618

if self.server.use_dbus:

1415

1619

# Emit D-Bus signal

1416

1620

client.GotSecret()

1483

1687

# Convert the buffer to a Python bytestring

1484

1688

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

1485

1689

# Convert the bytestring to hexadecimal notation

1486

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

1690

hex_fpr = binascii.hexlify(fpr).upper()

1487

1691

return hex_fpr

1488

1692

1489

1693

1492

1696

def sub_process_main(self, request, address):

1493

1697

try:

1494

1698

self.finish_request(request, address)

1495

except:

1699

except Exception:

1496

1700

self.handle_error(request, address)

1497

1701

self.close_request(request)

1498

1702

1499

1703

def process_request(self, request, address):

1500

1704

"""Start a new process to process the request."""

1501

multiprocessing.Process(target = self.sub_process_main,

1502

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

1705

proc = multiprocessing.Process(target = self.sub_process_main,

1706

args = (request,

1707

address))

1708

proc.start()

1709

return proc

1503

1710

1504

1711

1505

1712

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1511

1718

"""

1512

1719

parent_pipe, self.child_pipe = multiprocessing.Pipe()

1513

1720

1514

super(MultiprocessingMixInWithPipe,

1515

self).process_request(request, client_address)

1721

proc = MultiprocessingMixIn.process_request(self, request,

1722

client_address)

1516

1723

self.child_pipe.close()

1517

self.add_pipe(parent_pipe)

1724

self.add_pipe(parent_pipe, proc)

1518

1725

1519

def add_pipe(self, parent_pipe):

1726

def add_pipe(self, parent_pipe, proc):

1520

1727

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

1521

1728

raise NotImplementedError

1522

1729

1600

1807

self.enabled = False

1601

1808

self.clients = clients

1602

1809

if self.clients is None:

1603

self.clients = set()

1810

self.clients = {}

1604

1811

self.use_dbus = use_dbus

1605

1812

self.gnutls_priority = gnutls_priority

1606

1813

IPv6_TCPServer.__init__(self, server_address,

1610

1817

def server_activate(self):

1611

1818

if self.enabled:

1612

1819

return socketserver.TCPServer.server_activate(self)

1820

1613

1821

def enable(self):

1614

1822

self.enabled = True

1615

def add_pipe(self, parent_pipe):

1823

1824

def add_pipe(self, parent_pipe, proc):

1616

1825

# Call "handle_ipc" for both data and EOF events

1617

1826

gobject.io_add_watch(parent_pipe.fileno(),

1618

1827

gobject.IO_IN | gobject.IO_HUP,

1619

1828

functools.partial(self.handle_ipc,

1620

parent_pipe = parent_pipe))

1621

1829

parent_pipe =

1830

parent_pipe,

1831

proc = proc))

1832

1622

1833

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

1623

client_object=None):

1834

proc = None, client_object=None):

1624

1835

condition_names = {

1625

1836

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

1626

1837

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

1635

1846

for cond, name in

1636

1847

condition_names.iteritems()

1637

1848

if cond & condition)

1638

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

1849

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

1639

1850

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

1851

# Wait for other process to exit

1852

proc.join()

1640

1853

return False

1641

1854

1642

1855

# Read a request from the child

1647

1860

fpr = request[1]

1648

1861

address = request[2]

1649

1862

1650

for c in self.clients:

1863

for c in self.clients.itervalues():

1651

1864

if c.fingerprint == fpr:

1652

1865

client = c

1653

1866

break

1656

1869

"dress: %s", fpr, address)

1657

1870

if self.use_dbus:

1658

1871

# Emit D-Bus signal

1659

mandos_dbus_service.ClientNotFound(fpr, address[0])

1872

mandos_dbus_service.ClientNotFound(fpr,

1873

address[0])

1660

1874

parent_pipe.send(False)

1661

1875

return False

1662

1876

1663

1877

gobject.io_add_watch(parent_pipe.fileno(),

1664

1878

gobject.IO_IN | gobject.IO_HUP,

1665

1879

functools.partial(self.handle_ipc,

1666

parent_pipe = parent_pipe,

1667

client_object = client))

1880

parent_pipe =

1881

parent_pipe,

1882

proc = proc,

1883

client_object =

1884

client))

1668

1885

parent_pipe.send(True)

1669

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

1886

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

1887

# same fileno

1670

1888

return False

1671

1889

if command == 'funcall':

1672

1890

funcname = request[1]

1673

1891

args = request[2]

1674

1892

kwargs = request[3]

1675

1893

1676

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

1894

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

1895

funcname)(*args,

1896

**kwargs)))

1677

1897

1678

1898

if command == 'getattr':

1679

1899

attrname = request[1]

1680

1900

if callable(client_object.__getattribute__(attrname)):

1681

1901

parent_pipe.send(('function',))

1682

1902

else:

1683

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

1903

parent_pipe.send(('data', client_object

1904

.__getattribute__(attrname)))

1684

1905

1685

1906

if command == 'setattr':

1686

1907

attrname = request[1]

1729

1950

return timevalue

1730

1951

1731

1952

1732

def if_nametoindex(interface):

1733

"""Call the C function if_nametoindex(), or equivalent

1734

1735

Note: This function cannot accept a unicode string."""

1736

global if_nametoindex

1737

try:

1738

if_nametoindex = (ctypes.cdll.LoadLibrary

1739

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

1740

.if_nametoindex)

1741

except (OSError, AttributeError):

1742

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

1743

def if_nametoindex(interface):

1744

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

1745

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

1746

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

1747

ifreq = fcntl.ioctl(s, SIOCGIFINDEX,

1748

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

1749

interface))

1750

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

1751

ifreq[16:20])[0]

1752

return interface_index

1753

return if_nametoindex(interface)

1754

1755

1756

1953

def daemon(nochdir = False, noclose = False):

1757

1954

"""See daemon(3). Standard BSD Unix function.

1758

1955

1813

2010

" system bus interface")

1814

2011

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

1815

2012

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

2013

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

2014

dest="restore", help="Do not restore stored"

2015

" state")

2016

parser.add_argument("--statedir", metavar="DIR",

2017

help="Directory to save/restore state in")

2018

1816

2019

options = parser.parse_args()

1817

2020

1818

2021

if options.check:

1831

2034

"use_dbus": "True",

1832

2035

"use_ipv6": "True",

1833

2036

"debuglevel": "",

2037

"restore": "True",

2038

"statedir": "/var/lib/mandos"

1834

2039

}

1835

2040

1836

2041

# Parse config file for server-global settings

1853

2058

# options, if set.

1854

2059

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

1855

2060

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

1856

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

2061

"use_dbus", "use_ipv6", "debuglevel", "restore",

2062

"statedir"):

1857

2063

value = getattr(options, option)

1858

2064

if value is not None:

1859

2065

server_settings[option] = value

1871

2077

debuglevel = server_settings["debuglevel"]

1872

2078

use_dbus = server_settings["use_dbus"]

1873

2079

use_ipv6 = server_settings["use_ipv6"]

2080

stored_state_path = os.path.join(server_settings["statedir"],

2081

stored_state_file)

2082

2083

if debug:

2084

initlogger(debug, logging.DEBUG)

2085

else:

2086

if not debuglevel:

2087

initlogger(debug)

2088

else:

2089

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

2090

initlogger(debug, level)

1874

2091

1875

2092

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

1876

2093

syslogger.setFormatter(logging.Formatter

1879

2096

% server_settings["servicename"]))

1880

2097

1881

2098

# Parse config file with clients

1882

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

1883

"extended_timeout": "15m",

1884

"interval": "2m",

1885

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

1886

"host": "",

1887

"approval_delay": "0s",

1888

"approval_duration": "1s",

1889

}

1890

client_config = configparser.SafeConfigParser(client_defaults)

2099

client_config = configparser.SafeConfigParser(Client

2100

.client_defaults)

1891

2101

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

1892

2102

"clients.conf"))

1893

2103

1931

2141

if error[0] != errno.EPERM:

1932

2142

raise error

1933

2143

1934

if not debug and not debuglevel:

1935

syslogger.setLevel(logging.WARNING)

1936

console.setLevel(logging.WARNING)

1937

if debuglevel:

1938

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

1939

syslogger.setLevel(level)

1940

console.setLevel(level)

1941

1942

2144

if debug:

1943

2145

# Enable all possible GnuTLS debugging

1944

2146

1958

2160

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

1959

2161

if null > 2:

1960

2162

os.close(null)

1961

else:

1962

# No console logging

1963

logger.removeHandler(console)

1964

2163

1965

2164

# Need to fork before connecting to D-Bus

1966

2165

if not debug:

1967

2166

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

1968

2167

daemon()

1969

2168

2169

gobject.threads_init()

2170

1970

2171

global main_loop

1971

2172

# From the Avahi example code

1972

2173

DBusGMainLoop(set_as_default=True )

1977

2178

try:

1978

2179

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

1979

2180

bus, do_not_queue=True)

1980

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

1981

bus, do_not_queue=True)

2181

old_bus_name = (dbus.service.BusName

2182

("se.bsnet.fukt.Mandos", bus,

2183

do_not_queue=True))

1982

2184

except dbus.exceptions.NameExistsException as e:

1983

2185

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

1984

2186

use_dbus = False

1985

2187

server_settings["use_dbus"] = False

1986

2188

tcp_server.use_dbus = False

1987

2189

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

1988

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

1989

servicetype = "_mandos._tcp",

1990

protocol = protocol, bus = bus)

2190

service = AvahiServiceToSyslog(name =

2191

server_settings["servicename"],

2192

servicetype = "_mandos._tcp",

2193

protocol = protocol, bus = bus)

1991

2194

if server_settings["interface"]:

1992

2195

service.interface = (if_nametoindex

1993

2196

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

1997

2200

1998

2201

client_class = Client

1999

2202

if use_dbus:

2000

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

2001

def client_config_items(config, section):

2002

special_settings = {

2003

"approved_by_default":

2004

lambda: config.getboolean(section,

2005

"approved_by_default"),

2006

}

2007

for name, value in config.items(section):

2203

client_class = functools.partial(ClientDBusTransitional,

2204

bus = bus)

2205

2206

client_settings = Client.config_parser(client_config)

2207

old_client_settings = {}

2208

clients_data = {}

2209

2210

# Get client data and settings from last running state.

2211

if server_settings["restore"]:

2212

try:

2213

with open(stored_state_path, "rb") as stored_state:

2214

clients_data, old_client_settings = (pickle.load

2215

(stored_state))

2216

os.remove(stored_state_path)

2217

except IOError as e:

2218

logger.warning("Could not load persistent state: {0}"

2219

.format(e))

2220

if e.errno != errno.ENOENT:

2221

raise

2222

except EOFError as e:

2223

logger.warning("Could not load persistent state: "

2224

"EOFError: {0}".format(e))

2225

2226

with PGPEngine() as pgp:

2227

for client_name, client in clients_data.iteritems():

2228

# Decide which value to use after restoring saved state.

2229

# We have three different values: Old config file,

2230

# new config file, and saved state.

2231

# New config value takes precedence if it differs from old

2232

# config value, otherwise use saved state.

2233

for name, value in client_settings[client_name].items():

2234

try:

2235

# For each value in new config, check if it

2236

# differs from the old config value (Except for

2237

# the "secret" attribute)

2238

if (name != "secret" and

2239

value != old_client_settings[client_name]

2240

[name]):

2241

client[name] = value

2242

except KeyError:

2243

pass

2244

2245

# Clients who has passed its expire date can still be

2246

# enabled if its last checker was successful. Clients

2247

# whose checker succeeded before we stored its state is

2248

# assumed to have successfully run all checkers during

2249

# downtime.

2250

if client["enabled"]:

2251

if datetime.datetime.utcnow() >= client["expires"]:

2252

if not client["last_checked_ok"]:

2253

logger.warning(

2254

"disabling client {0} - Client never "

2255

"performed a successful checker"

2256

.format(client_name))

2257

client["enabled"] = False

2258

elif client["last_checker_status"] != 0:

2259

logger.warning(

2260

"disabling client {0} - Client "

2261

"last checker failed with error code {1}"

2262

.format(client_name,

2263

client["last_checker_status"]))

2264

client["enabled"] = False

2265

else:

2266

client["expires"] = (datetime.datetime

2267

.utcnow()

2268

+ client["timeout"])

2269

logger.debug("Last checker succeeded,"

2270

" keeping {0} enabled"

2271

.format(client_name))

2008

2272

try:

2009

yield (name, special_settings[name]())

2010

except KeyError:

2011

yield (name, value)

2012

2013

tcp_server.clients.update(set(

2014

client_class(name = section,

2015

config= dict(client_config_items(

2016

client_config, section)))

2017

for section in client_config.sections()))

2273

client["secret"] = (

2274

pgp.decrypt(client["encrypted_secret"],

2275

client_settings[client_name]

2276

["secret"]))

2277

except PGPError:

2278

# If decryption fails, we use secret from new settings

2279

logger.debug("Failed to decrypt {0} old secret"

2280

.format(client_name))

2281

client["secret"] = (

2282

client_settings[client_name]["secret"])

2283

2284

2285

# Add/remove clients based on new changes made to config

2286

for client_name in (set(old_client_settings)

2287

- set(client_settings)):

2288

del clients_data[client_name]

2289

for client_name in (set(client_settings)

2290

- set(old_client_settings)):

2291

clients_data[client_name] = client_settings[client_name]

2292

2293

# Create all client objects

2294

for client_name, client in clients_data.iteritems():

2295

tcp_server.clients[client_name] = client_class(

2296

name = client_name, settings = client)

2297

2018

2298

if not tcp_server.clients:

2019

2299

logger.warning("No clients defined")

2020

2300

2031

2311

# "pidfile" was never created

2032

2312

pass

2033

2313

del pidfilename

2034

2035

2314

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

2036

2315

2037

2316

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

2063

2342

def GetAllClients(self):

2064

2343

"D-Bus method"

2065

2344

return dbus.Array(c.dbus_object_path

2066

for c in tcp_server.clients)

2345

for c in

2346

tcp_server.clients.itervalues())

2067

2347

2068

2348

@dbus.service.method(_interface,

2069

2349

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

2071

2351

"D-Bus method"

2072

2352

return dbus.Dictionary(

2073

2353

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

2074

for c in tcp_server.clients),

2354

for c in tcp_server.clients.itervalues()),

2075

2355

signature="oa{sv}")

2076

2356

2077

2357

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

2078

2358

def RemoveClient(self, object_path):

2079

2359

"D-Bus method"

2080

for c in tcp_server.clients:

2360

for c in tcp_server.clients.itervalues():

2081

2361

if c.dbus_object_path == object_path:

2082

tcp_server.clients.remove(c)

2362

del tcp_server.clients[c.name]

2083

2363

c.remove_from_connection()

2084

2364

# Don't signal anything except ClientRemoved

2085

2365

c.disable(quiet=True)

2098

2378

"Cleanup function; run on exit"

2099

2379

service.cleanup()

2100

2380

2381

multiprocessing.active_children()

2382

if not (tcp_server.clients or client_settings):

2383

return

2384

2385

# Store client before exiting. Secrets are encrypted with key

2386

# based on what config file has. If config file is

2387

# removed/edited, old secret will thus be unrecovable.

2388

clients = {}

2389

with PGPEngine() as pgp:

2390

for client in tcp_server.clients.itervalues():

2391

key = client_settings[client.name]["secret"]

2392

client.encrypted_secret = pgp.encrypt(client.secret,

2393

key)

2394

client_dict = {}

2395

2396

# A list of attributes that can not be pickled

2397

# + secret.

2398

exclude = set(("bus", "changedstate", "secret",

2399

"checker"))

2400

for name, typ in (inspect.getmembers

2401

(dbus.service.Object)):

2402

exclude.add(name)

2403

2404

client_dict["encrypted_secret"] = (client

2405

.encrypted_secret)

2406

for attr in client.client_structure:

2407

if attr not in exclude:

2408

client_dict[attr] = getattr(client, attr)

2409

2410

clients[client.name] = client_dict

2411

del client_settings[client.name]["secret"]

2412

2413

try:

2414

tempfd, tempname = tempfile.mkstemp(suffix=".pickle",

2415

prefix="clients-",

2416

dir=os.path.dirname

2417

(stored_state_path))

2418

with os.fdopen(tempfd, "wb") as stored_state:

2419

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

2420

os.rename(tempname, stored_state_path)

2421

except (IOError, OSError) as e:

2422

logger.warning("Could not save persistent state: {0}"

2423

.format(e))

2424

if not debug:

2425

try:

2426

os.remove(tempname)

2427

except NameError:

2428

pass

2429

if e.errno not in set((errno.ENOENT, errno.EACCES,

2430

errno.EEXIST)):

2431

raise e

2432

2433

# Delete all clients, and settings from config

2101

2434

while tcp_server.clients:

2102

client = tcp_server.clients.pop()

2435

name, client = tcp_server.clients.popitem()

2103

2436

if use_dbus:

2104

2437

client.remove_from_connection()

2105

client.disable_hook = None

2106

2438

# Don't signal anything except ClientRemoved

2107

2439

client.disable(quiet=True)

2108

2440

if use_dbus:

2109

2441

# Emit D-Bus signal

2110

mandos_dbus_service.ClientRemoved(client.dbus_object_path,

2442

mandos_dbus_service.ClientRemoved(client

2443

.dbus_object_path,

2111

2444

client.name)

2445

client_settings.clear()

2112

2446

2113

2447

atexit.register(cleanup)

2114

2448

2115

for client in tcp_server.clients:

2449

for client in tcp_server.clients.itervalues():

2116

2450

if use_dbus:

2117

2451

# Emit D-Bus signal

2118

2452

mandos_dbus_service.ClientAdded(client.dbus_object_path)

2119

client.enable()

2453

# Need to initiate checking of clients

2454

if client.enabled:

2455

client.init_checker()

2120

2456

2121

2457

tcp_server.enable()

2122

2458

tcp_server.server_activate()

2162

2498

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

2163

2499

cleanup()

2164

2500

2165

2166

2501

if __name__ == '__main__':

2167

2502

main()