/mandos/trunk : revision 505.1.2

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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 = "1.4.1"

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stored_state_file = "clients.pickle"

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logger = logging.getLogger()

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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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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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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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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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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

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.GetAlternativeServiceName(self.name))

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

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

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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):

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dbus.exceptions.DBusException) as e:

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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_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, or None.

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

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last_enabled: datetime.datetime(); (UTC)

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name: string; from the config file, used in log messages and

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D-Bus identifiers

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

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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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@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(" ", ""))

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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

487

(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"] = None

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return settings

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

331

return _timedelta_to_milliseconds(self.approval_delay)

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

510

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

511

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

512

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attribute."""

513

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self.name = name

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# adding all client settings

515

for setting, value in settings.iteritems():

516

setattr(self, setting, value)

517

518

if self.enabled:

519

if not hasattr(self, "last_enabled"):

520

self.last_enabled = datetime.datetime.utcnow()

521

if not hasattr(self, "expires"):

522

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

523

+ self.timeout)

524

else:

525

self.last_enabled = None

526

self.expires = None

527

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if config is None:

339

config = {}

528

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

529

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# Uppercase and remove spaces from fingerprint for later

530

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# comparison purposes with return value from the fingerprint()

531

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# function

344

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

345

.replace(" ", ""))

532

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

533

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

534

datetime.datetime.utcnow())

535

536

# attributes specific for this server instance

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"

356

% 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"])

364

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

365

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

366

self.disable_hook = disable_hook

537

367

self.checker = None

538

368

self.checker_initiator_tag = None

539

369

self.disable_initiator_tag = None

370

self.expires = None

540

371

self.checker_callback_tag = None

372

self.checker_command = config["checker"]

541

373

self.current_checker_command = None

542

self.approved = None

374

self.last_connect = None

375

self._approved = None

376

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

377

True)

543

378

self.approvals_pending = 0

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)

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())

558

384

559

# Send notice to process children that client state has changed

560

385

def send_changedstate(self):

561

with self.changedstate:

562

self.changedstate.notify_all()

563

386

self.changedstate.acquire()

387

self.changedstate.notify_all()

388

self.changedstate.release()

389

564

390

def enable(self):

565

391

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

566

392

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

567

393

# Already enabled

568

394

return

569

395

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

570

402

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

403

self.disable_initiator_tag = (gobject.timeout_add

404

(self.timeout_milliseconds(),

405

self.disable))

571

406

self.enabled = True

572

407

self.last_enabled = datetime.datetime.utcnow()

573

self.init_checker()

408

# Also start a new checker *right now*.

409

self.start_checker()

574

410

575

411

def disable(self, quiet=True):

576

412

"""Disable this client."""

588

424

gobject.source_remove(self.checker_initiator_tag)

589

425

self.checker_initiator_tag = None

590

426

self.stop_checker()

427

if self.disable_hook:

428

self.disable_hook(self)

591

429

self.enabled = False

592

430

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

593

431

return False

594

432

595

433

def __del__(self):

434

self.disable_hook = None

596

435

self.disable()

597

436

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

611

437

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

612

438

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

613

439

self.checker_callback_tag = None

614

440

self.checker = None

615

441

if os.WIFEXITED(condition):

616

self.last_checker_status = os.WEXITSTATUS(condition)

617

if self.last_checker_status == 0:

442

exitstatus = os.WEXITSTATUS(condition)

443

if exitstatus == 0:

618

444

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

619

445

vars(self))

620

446

self.checked_ok()

622

448

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

623

449

vars(self))

624

450

else:

625

self.last_checker_status = -1

626

451

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

627

452

vars(self))

628

453

635

460

if timeout is None:

636

461

timeout = self.timeout

637

462

self.last_checked_ok = datetime.datetime.utcnow()

638

if self.disable_initiator_tag is not None:

639

gobject.source_remove(self.disable_initiator_tag)

640

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

641

self.disable_initiator_tag = (gobject.timeout_add

642

(timedelta_to_milliseconds

643

(timeout), self.disable))

644

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

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))

645

468

646

469

def need_approval(self):

647

470

self.last_approval_request = datetime.datetime.utcnow()

806

629

"""

807

630

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

808

631

for cls in self.__class__.__mro__

809

for name, prop in

810

inspect.getmembers(cls, self._is_dbus_property))

632

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

811

633

812

634

def _get_dbus_property(self, interface_name, property_name):

813

635

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

814

636

property with the specified name and interface.

815

637

"""

816

638

for cls in self.__class__.__mro__:

817

for name, value in (inspect.getmembers

818

(cls, self._is_dbus_property)):

819

if (value._dbus_name == property_name

820

and value._dbus_interface == interface_name):

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:

821

641

return value.__get__(self)

822

642

823

643

# No such property

850

670

# signatures other than "ay".

851

671

if prop._dbus_signature != "ay":

852

672

raise ValueError

853

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

854

for byte in value))

673

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

674

for byte in value))

855

675

prop(value)

856

676

857

677

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

862

682

863

683

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

864

684

"""

865

properties = {}

685

all = {}

866

686

for name, prop in self._get_all_dbus_properties():

867

687

if (interface_name

868

688

and interface_name != prop._dbus_interface):

873

693

continue

874

694

value = prop()

875

695

if not hasattr(value, "variant_level"):

876

properties[name] = value

696

all[name] = value

877

697

continue

878

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

879

value.variant_level+1)

880

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

698

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

699

value.variant_level+1)

700

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

881

701

882

702

@dbus.service.method(dbus.INTROSPECTABLE_IFACE,

883

703

out_signature="s",

934

754

return dbus.String(dt.isoformat(),

935

755

variant_level=variant_level)

936

756

937

938

class AlternateDBusNamesMetaclass(DBusObjectWithProperties

939

.__metaclass__):

757

class AlternateDBusNamesMetaclass(DBusObjectWithProperties.__metaclass__):

940

758

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

941

759

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

942

760

"""

1032

850

attribute.func_closure)))

1033

851

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

1034

852

1035

1036

853

class ClientDBus(Client, DBusObjectWithProperties):

1037

854

"""A Client class using D-Bus

1038

855

1047

864

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

1048

865

1049

866

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

867

self._approvals_pending = 0

1050

868

self.bus = bus

1051

869

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

1052

self._approvals_pending = 0

1053

1054

self._approvals_pending = 0

1055

870

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

1056

871

# the D-Bus

1057

872

client_object_name = unicode(self.name).translate(

1067

882

variant_level=1):

1068

883

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

1069

884

its changes to DBus.

1070

1071

transform_fun: Function that takes a value and a variant_level

1072

and transforms it to a D-Bus type.

885

886

transform_fun: Function that takes a value and transforms it

887

to a D-Bus type.

1073

888

dbus_name: D-Bus name of the variable

1074

889

type_func: Function that transform the value before sending it

1075

890

to the D-Bus. Default: no transform

1076

891

variant_level: D-Bus variant level. Default: 1

1077

892

"""

1078

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

893

real_value = [None,]

1079

894

def setter(self, value):

895

old_value = real_value[0]

896

real_value[0] = value

1080

897

if hasattr(self, "dbus_object_path"):

1081

if (not hasattr(self, attrname) or

1082

type_func(getattr(self, attrname, None))

1083

!= type_func(value)):

1084

dbus_value = transform_func(type_func(value),

1085

variant_level

1086

=variant_level)

898

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

899

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

900

variant_level)

1087

901

self.PropertyChanged(dbus.String(dbus_name),

1088

902

dbus_value)

1089

setattr(self, attrname, value)

1090

903

1091

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

904

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

1092

905

1093

906

1094

907

expires = notifychangeproperty(datetime_to_dbus, "Expires")

1099

912

last_enabled = notifychangeproperty(datetime_to_dbus,

1100

913

"LastEnabled")

1101

914

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

1102

type_func = lambda checker:

1103

checker is not None)

915

type_func = lambda checker: checker is not None)

1104

916

last_checked_ok = notifychangeproperty(datetime_to_dbus,

1105

917

"LastCheckedOK")

1106

last_approval_request = notifychangeproperty(

1107

datetime_to_dbus, "LastApprovalRequest")

918

last_approval_request = notifychangeproperty(datetime_to_dbus,

919

"LastApprovalRequest")

1108

920

approved_by_default = notifychangeproperty(dbus.Boolean,

1109

921

"ApprovedByDefault")

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)

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)

1117

926

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

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)

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)

1128

933

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

1129

934

1130

935

del notifychangeproperty

1172

977

return r

1173

978

1174

979

def _reset_approved(self):

1175

self.approved = None

980

self._approved = None

1176

981

return False

1177

982

1178

983

def approve(self, value=True):

1179

984

self.send_changedstate()

1180

self.approved = value

1181

gobject.timeout_add(timedelta_to_milliseconds

985

self._approved = value

986

gobject.timeout_add(_timedelta_to_milliseconds

1182

987

(self.approval_duration),

1183

988

self._reset_approved)

1184

989

1227

1032

"D-Bus signal"

1228

1033

return self.need_approval()

1229

1034

1230

# NeRwequest - signal

1231

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

1232

def NewRequest(self, ip):

1233

"""D-Bus signal

1234

Is sent after a client request a password.

1235

"""

1236

pass

1237

1238

1035

## Methods

1239

1036

1240

1037

# Approve - method

1298

1095

access="readwrite")

1299

1096

def ApprovalDuration_dbus_property(self, value=None):

1300

1097

if value is None: # get

1301

return dbus.UInt64(timedelta_to_milliseconds(

1098

return dbus.UInt64(_timedelta_to_milliseconds(

1302

1099

self.approval_duration))

1303

1100

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

1304

1101

1318

1115

def Host_dbus_property(self, value=None):

1319

1116

if value is None: # get

1320

1117

return dbus.String(self.host)

1321

self.host = unicode(value)

1118

self.host = value

1322

1119

1323

1120

# Created - property

1324

1121

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

1325

1122

def Created_dbus_property(self):

1326

return datetime_to_dbus(self.created)

1123

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

1327

1124

1328

1125

# LastEnabled - property

1329

1126

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

1367

1164

if value is None: # get

1368

1165

return dbus.UInt64(self.timeout_milliseconds())

1369

1166

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

1167

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

1168

return

1370

1169

# Reschedule timeout

1371

if self.enabled:

1372

now = datetime.datetime.utcnow()

1373

time_to_die = timedelta_to_milliseconds(

1374

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

1375

if time_to_die <= 0:

1376

# The timeout has passed

1377

self.disable()

1378

else:

1379

self.expires = (now +

1380

datetime.timedelta(milliseconds =

1381

time_to_die))

1382

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

1383

is None):

1384

return

1385

gobject.source_remove(self.disable_initiator_tag)

1386

self.disable_initiator_tag = (gobject.timeout_add

1387

(time_to_die,

1388

self.disable))

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))

1389

1187

1390

1188

# ExtendedTimeout - property

1391

1189

@dbus_service_property(_interface, signature="t",

1404

1202

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

1405

1203

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

1406

1204

return

1407

if self.enabled:

1408

# Reschedule checker run

1409

gobject.source_remove(self.checker_initiator_tag)

1410

self.checker_initiator_tag = (gobject.timeout_add

1411

(value, self.start_checker))

1412

self.start_checker() # Start one now, too

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

1413

1210

1414

1211

# Checker - property

1415

1212

@dbus_service_property(_interface, signature="s",

1417

1214

def Checker_dbus_property(self, value=None):

1418

1215

if value is None: # get

1419

1216

return dbus.String(self.checker_command)

1420

self.checker_command = unicode(value)

1217

self.checker_command = value

1421

1218

1422

1219

# CheckerRunning - property

1423

1220

@dbus_service_property(_interface, signature="b",

1452

1249

raise KeyError()

1453

1250

1454

1251

def __getattribute__(self, name):

1455

if name == '_pipe':

1252

if(name == '_pipe'):

1456

1253

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

1457

1254

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

1458

1255

data = self._pipe.recv()

1465

1262

return func

1466

1263

1467

1264

def __setattr__(self, name, value):

1468

if name == '_pipe':

1265

if(name == '_pipe'):

1469

1266

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

1470

1267

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

1471

1268

1472

1473

1269

class ClientDBusTransitional(ClientDBus):

1474

1270

__metaclass__ = AlternateDBusNamesMetaclass

1475

1271

1476

1477

1272

class ClientHandler(socketserver.BaseRequestHandler, object):

1478

1273

"""A class to handle client connections.

1479

1274

1547

1342

except KeyError:

1548

1343

return

1549

1344

1550

if self.server.use_dbus:

1551

# Emit D-Bus signal

1552

client.NewRequest(str(self.client_address))

1553

1554

1345

if client.approval_delay:

1555

1346

delay = client.approval_delay

1556

1347

client.approvals_pending += 1

1562

1353

client.name)

1563

1354

if self.server.use_dbus:

1564

1355

# Emit D-Bus signal

1565

client.Rejected("Disabled")

1356

client.Rejected("Disabled")

1566

1357

return

1567

1358

1568

if client.approved or not client.approval_delay:

1359

if client._approved or not client.approval_delay:

1569

1360

#We are approved or approval is disabled

1570

1361

break

1571

elif client.approved is None:

1362

elif client._approved is None:

1572

1363

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

1573

1364

client.name)

1574

1365

if self.server.use_dbus:

1585

1376

return

1586

1377

1587

1378

#wait until timeout or approved

1379

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

1588

1380

time = datetime.datetime.now()

1589

1381

client.changedstate.acquire()

1590

(client.changedstate.wait

1591

(float(client.timedelta_to_milliseconds(delay)

1592

/ 1000)))

1382

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

1593

1383

client.changedstate.release()

1594

1384

time2 = datetime.datetime.now()

1595

1385

if (time2 - time) >= delay:

1619

1409

sent_size += sent

1620

1410

1621

1411

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

1622

# bump the timeout using extended_timeout

1412

# bump the timeout as if seen

1623

1413

client.checked_ok(client.extended_timeout)

1624

1414

if self.server.use_dbus:

1625

1415

# Emit D-Bus signal

1693

1483

# Convert the buffer to a Python bytestring

1694

1484

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

1695

1485

# Convert the bytestring to hexadecimal notation

1696

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

1486

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

1697

1487

return hex_fpr

1698

1488

1699

1489

1702

1492

def sub_process_main(self, request, address):

1703

1493

try:

1704

1494

self.finish_request(request, address)

1705

except Exception:

1495

except:

1706

1496

self.handle_error(request, address)

1707

1497

self.close_request(request)

1708

1498

1709

1499

def process_request(self, request, address):

1710

1500

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

1711

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

1712

args = (request,

1713

address))

1714

proc.start()

1715

return proc

1501

multiprocessing.Process(target = self.sub_process_main,

1502

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

1716

1503

1717

1504

1718

1505

class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):

1724

1511

"""

1725

1512

parent_pipe, self.child_pipe = multiprocessing.Pipe()

1726

1513

1727

proc = MultiprocessingMixIn.process_request(self, request,

1728

client_address)

1514

super(MultiprocessingMixInWithPipe,

1515

self).process_request(request, client_address)

1729

1516

self.child_pipe.close()

1730

self.add_pipe(parent_pipe, proc)

1517

self.add_pipe(parent_pipe)

1731

1518

1732

def add_pipe(self, parent_pipe, proc):

1519

def add_pipe(self, parent_pipe):

1733

1520

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

1734

1521

raise NotImplementedError

1735

1522

1813

1600

self.enabled = False

1814

1601

self.clients = clients

1815

1602

if self.clients is None:

1816

self.clients = {}

1603

self.clients = set()

1817

1604

self.use_dbus = use_dbus

1818

1605

self.gnutls_priority = gnutls_priority

1819

1606

IPv6_TCPServer.__init__(self, server_address,

1823

1610

def server_activate(self):

1824

1611

if self.enabled:

1825

1612

return socketserver.TCPServer.server_activate(self)

1826

1827

1613

def enable(self):

1828

1614

self.enabled = True

1829

1830

def add_pipe(self, parent_pipe, proc):

1615

def add_pipe(self, parent_pipe):

1831

1616

# Call "handle_ipc" for both data and EOF events

1832

1617

gobject.io_add_watch(parent_pipe.fileno(),

1833

1618

gobject.IO_IN | gobject.IO_HUP,

1834

1619

functools.partial(self.handle_ipc,

1835

parent_pipe =

1836

parent_pipe,

1837

proc = proc))

1838

1620

parent_pipe = parent_pipe))

1621

1839

1622

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

1840

proc = None, client_object=None):

1623

client_object=None):

1841

1624

condition_names = {

1842

1625

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

1843

1626

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

1852

1635

for cond, name in

1853

1636

condition_names.iteritems()

1854

1637

if cond & condition)

1855

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

1638

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

1856

1639

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

1857

# Wait for other process to exit

1858

proc.join()

1859

1640

return False

1860

1641

1861

1642

# Read a request from the child

1866

1647

fpr = request[1]

1867

1648

address = request[2]

1868

1649

1869

for c in self.clients.itervalues():

1650

for c in self.clients:

1870

1651

if c.fingerprint == fpr:

1871

1652

client = c

1872

1653

break

1875

1656

"dress: %s", fpr, address)

1876

1657

if self.use_dbus:

1877

1658

# Emit D-Bus signal

1878

mandos_dbus_service.ClientNotFound(fpr,

1879

address[0])

1659

mandos_dbus_service.ClientNotFound(fpr, address[0])

1880

1660

parent_pipe.send(False)

1881

1661

return False

1882

1662

1883

1663

gobject.io_add_watch(parent_pipe.fileno(),

1884

1664

gobject.IO_IN | gobject.IO_HUP,

1885

1665

functools.partial(self.handle_ipc,

1886

parent_pipe =

1887

parent_pipe,

1888

proc = proc,

1889

client_object =

1890

client))

1666

parent_pipe = parent_pipe,

1667

client_object = client))

1891

1668

parent_pipe.send(True)

1892

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

1893

# same fileno

1669

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

1894

1670

return False

1895

1671

if command == 'funcall':

1896

1672

funcname = request[1]

1897

1673

args = request[2]

1898

1674

kwargs = request[3]

1899

1675

1900

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

1901

funcname)(*args,

1902

**kwargs)))

1676

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

1903

1677

1904

1678

if command == 'getattr':

1905

1679

attrname = request[1]

1906

1680

if callable(client_object.__getattribute__(attrname)):

1907

1681

parent_pipe.send(('function',))

1908

1682

else:

1909

parent_pipe.send(('data', client_object

1910

.__getattribute__(attrname)))

1683

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

1911

1684

1912

1685

if command == 'setattr':

1913

1686

attrname = request[1]

1956

1729

return timevalue

1957

1730

1958

1731

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

1959

1756

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

1960

1757

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

1961

1758

2016

1813

" system bus interface")

2017

1814

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

2018

1815

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

2019

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

2020

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

2021

" state")

2022

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

2023

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

2024

2025

1816

options = parser.parse_args()

2026

1817

2027

1818

if options.check:

2040

1831

"use_dbus": "True",

2041

1832

"use_ipv6": "True",

2042

1833

"debuglevel": "",

2043

"restore": "True",

2044

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

2045

1834

}

2046

1835

2047

1836

# Parse config file for server-global settings

2064

1853

# options, if set.

2065

1854

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

2066

1855

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

2067

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

2068

"statedir"):

1856

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

2069

1857

value = getattr(options, option)

2070

1858

if value is not None:

2071

1859

server_settings[option] = value

2083

1871

debuglevel = server_settings["debuglevel"]

2084

1872

use_dbus = server_settings["use_dbus"]

2085

1873

use_ipv6 = server_settings["use_ipv6"]

2086

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

2087

stored_state_file)

2088

2089

if debug:

2090

initlogger(debug, logging.DEBUG)

2091

else:

2092

if not debuglevel:

2093

initlogger(debug)

2094

else:

2095

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

2096

initlogger(debug, level)

2097

1874

2098

1875

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

2099

1876

syslogger.setFormatter(logging.Formatter

2102

1879

% server_settings["servicename"]))

2103

1880

2104

1881

# Parse config file with clients

2105

client_config = configparser.SafeConfigParser(Client

2106

.client_defaults)

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)

2107

1891

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

2108

1892

"clients.conf"))

2109

1893

2147

1931

if error[0] != errno.EPERM:

2148

1932

raise error

2149

1933

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

2150

1942

if debug:

2151

1943

# Enable all possible GnuTLS debugging

2152

1944

2166

1958

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

2167

1959

if null > 2:

2168

1960

os.close(null)

1961

else:

1962

# No console logging

1963

logger.removeHandler(console)

2169

1964

2170

1965

# Need to fork before connecting to D-Bus

2171

1966

if not debug:

2172

1967

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

2173

1968

daemon()

2174

1969

2175

gobject.threads_init()

2176

2177

1970

global main_loop

2178

1971

# From the Avahi example code

2179

1972

DBusGMainLoop(set_as_default=True )

2184

1977

try:

2185

1978

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

2186

1979

bus, do_not_queue=True)

2187

old_bus_name = (dbus.service.BusName

2188

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

2189

do_not_queue=True))

1980

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

1981

bus, do_not_queue=True)

2190

1982

except dbus.exceptions.NameExistsException as e:

2191

1983

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

2192

1984

use_dbus = False

2193

1985

server_settings["use_dbus"] = False

2194

1986

tcp_server.use_dbus = False

2195

1987

protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET

2196

service = AvahiServiceToSyslog(name =

2197

server_settings["servicename"],

2198

servicetype = "_mandos._tcp",

2199

protocol = protocol, bus = bus)

1988

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

1989

servicetype = "_mandos._tcp",

1990

protocol = protocol, bus = bus)

2200

1991

if server_settings["interface"]:

2201

1992

service.interface = (if_nametoindex

2202

1993

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

2206

1997

2207

1998

client_class = Client

2208

1999

if use_dbus:

2209

client_class = functools.partial(ClientDBusTransitional,

2210

bus = bus)

2211

2212

client_settings = Client.config_parser(client_config)

2213

old_client_settings = {}

2214

clients_data = {}

2215

2216

# Get client data and settings from last running state.

2217

if server_settings["restore"]:

2218

try:

2219

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

2220

clients_data, old_client_settings = (pickle.load

2221

(stored_state))

2222

os.remove(stored_state_path)

2223

except IOError as e:

2224

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

2225

.format(e))

2226

if e.errno != errno.ENOENT:

2227

raise

2228

except EOFError as e:

2229

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

2230

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

2231

2232

with PGPEngine() as pgp:

2233

for client_name, client in clients_data.iteritems():

2234

# Decide which value to use after restoring saved state.

2235

# We have three different values: Old config file,

2236

# new config file, and saved state.

2237

# New config value takes precedence if it differs from old

2238

# config value, otherwise use saved state.

2239

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

2240

try:

2241

# For each value in new config, check if it

2242

# differs from the old config value (Except for

2243

# the "secret" attribute)

2244

if (name != "secret" and

2245

value != old_client_settings[client_name]

2246

[name]):

2247

client[name] = value

2248

except KeyError:

2249

pass

2250

2251

# Clients who has passed its expire date can still be

2252

# enabled if its last checker was successful. Clients

2253

# whose checker failed before we stored its state is

2254

# assumed to have failed all checkers during downtime.

2255

if client["enabled"]:

2256

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

2257

if not client["last_checked_ok"]:

2258

logger.warning(

2259

"disabling client {0} - Client never "

2260

"performed a successfull checker"

2261

.format(client["name"]))

2262

client["enabled"] = False

2263

elif client["last_checker_status"] != 0:

2264

logger.warning(

2265

"disabling client {0} - Client "

2266

"last checker failed with error code {1}"

2267

.format(client["name"],

2268

client["last_checker_status"]))

2269

client["enabled"] = False

2270

else:

2271

client["expires"] = (datetime.datetime

2272

.utcnow()

2273

+ client["timeout"])

2274

logger.debug("Last checker succeeded,"

2275

" keeping {0} enabled"

2276

.format(client["name"]))

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):

2277

2008

try:

2278

client["secret"] = (

2279

pgp.decrypt(client["encrypted_secret"],

2280

client_settings[client_name]

2281

["secret"]))

2282

except PGPError:

2283

# If decryption fails, we use secret from new settings

2284

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

2285

.format(client_name))

2286

client["secret"] = (

2287

client_settings[client_name]["secret"])

2288

2289

2290

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

2291

for client_name in (set(old_client_settings)

2292

- set(client_settings)):

2293

del clients_data[client_name]

2294

for client_name in (set(client_settings)

2295

- set(old_client_settings)):

2296

clients_data[client_name] = client_settings[client_name]

2297

2298

# Create clients all clients

2299

for client_name, client in clients_data.iteritems():

2300

tcp_server.clients[client_name] = client_class(

2301

name = client_name, settings = client)

2302

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()))

2303

2018

if not tcp_server.clients:

2304

2019

logger.warning("No clients defined")

2305

2020

2316

2031

# "pidfile" was never created

2317

2032

pass

2318

2033

del pidfilename

2034

2319

2035

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

2320

2036

2321

2037

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

2347

2063

def GetAllClients(self):

2348

2064

"D-Bus method"

2349

2065

return dbus.Array(c.dbus_object_path

2350

for c in

2351

tcp_server.clients.itervalues())

2066

for c in tcp_server.clients)

2352

2067

2353

2068

@dbus.service.method(_interface,

2354

2069

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

2356

2071

"D-Bus method"

2357

2072

return dbus.Dictionary(

2358

2073

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

2359

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

2074

for c in tcp_server.clients),

2360

2075

signature="oa{sv}")

2361

2076

2362

2077

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

2363

2078

def RemoveClient(self, object_path):

2364

2079

"D-Bus method"

2365

for c in tcp_server.clients.itervalues():

2080

for c in tcp_server.clients:

2366

2081

if c.dbus_object_path == object_path:

2367

del tcp_server.clients[c.name]

2082

tcp_server.clients.remove(c)

2368

2083

c.remove_from_connection()

2369

2084

# Don't signal anything except ClientRemoved

2370

2085

c.disable(quiet=True)

2383

2098

"Cleanup function; run on exit"

2384

2099

service.cleanup()

2385

2100

2386

multiprocessing.active_children()

2387

if not (tcp_server.clients or client_settings):

2388

return

2389

2390

# Store client before exiting. Secrets are encrypted with key

2391

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

2392

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

2393

clients = {}

2394

with PGPEngine() as pgp:

2395

for client in tcp_server.clients.itervalues():

2396

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

2397

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

2398

key)

2399

client_dict = {}

2400

2401

# A list of attributes that can not be pickled

2402

# + secret.

2403

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

2404

"checker"))

2405

for name, typ in (inspect.getmembers

2406

(dbus.service.Object)):

2407

exclude.add(name)

2408

2409

client_dict["encrypted_secret"] = (client

2410

.encrypted_secret)

2411

for attr in client.client_structure:

2412

if attr not in exclude:

2413

client_dict[attr] = getattr(client, attr)

2414

2415

clients[client.name] = client_dict

2416

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

2417

2418

try:

2419

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

2420

prefix="clients-",

2421

dir=os.path.dirname

2422

(stored_state_path))

2423

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

2424

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

2425

os.rename(tempname, stored_state_path)

2426

except (IOError, OSError) as e:

2427

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

2428

.format(e))

2429

if not debug:

2430

try:

2431

os.remove(tempname)

2432

except NameError:

2433

pass

2434

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

2435

errno.EEXIST)):

2436

raise e

2437

2438

# Delete all clients, and settings from config

2439

2101

while tcp_server.clients:

2440

name, client = tcp_server.clients.popitem()

2102

client = tcp_server.clients.pop()

2441

2103

if use_dbus:

2442

2104

client.remove_from_connection()

2105

client.disable_hook = None

2443

2106

# Don't signal anything except ClientRemoved

2444

2107

client.disable(quiet=True)

2445

2108

if use_dbus:

2446

2109

# Emit D-Bus signal

2447

mandos_dbus_service.ClientRemoved(client

2448

.dbus_object_path,

2110

mandos_dbus_service.ClientRemoved(client.dbus_object_path,

2449

2111

client.name)

2450

client_settings.clear()

2451

2112

2452

2113

atexit.register(cleanup)

2453

2114

2454

for client in tcp_server.clients.itervalues():

2115

for client in tcp_server.clients:

2455

2116

if use_dbus:

2456

2117

# Emit D-Bus signal

2457

2118

mandos_dbus_service.ClientAdded(client.dbus_object_path)

2458

# Need to initiate checking of clients

2459

if client.enabled:

2460

client.init_checker()

2119

client.enable()

2461

2120

2462

2121

tcp_server.enable()

2463

2122

tcp_server.server_activate()

2503

2162

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

2504

2163

cleanup()

2505

2164

2165

2506

2166

if __name__ == '__main__':

2507

2167

main()