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  • Committer: Teddy Hogeborn
  • Date: 2015-03-10 18:52:09 UTC
  • Revision ID: teddy@recompile.se-20150310185209-lxuovbu09zwyk9bx
Automatically determine the number of DH bits in the TLS handshake.

Instead of using a default value of 1024, check the OpenPGP key and
determine an appropriate number of DH bits to use, (using GnuTLS
functions made for this).  Document this new default behavior.

* plugins.d/mandos-client.c (safe_string): New function.
  (init_gnutls_global): If not specified, determine the number of DH
                        bits to use, based on the OpenPGP key.
* plugins.d/mandos-client.xml (OPTIONS): Document this new default of
                                         the --dh-bits option.

Thanks to Andreas Fischer <af@bantuX.org> for reporting this issue.

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Lines of Context:
mandos-monitor
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import locale
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if sys.version_info[0] == 2:
 
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if sys.version_info.major == 2:
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    str = unicode
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locale.setlocale(locale.LC_ALL, '')
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domain = 'se.recompile'
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server_interface = domain + '.Mandos'
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client_interface = domain + '.Mandos.Client'
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version = "1.6.6"
 
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version = "1.6.9"
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def isoformat_to_datetime(iso):
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    "Parse an ISO 8601 date string to a datetime.datetime()"
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        self.proxy = proxy_object # Mandos Client proxy object
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        self.properties = dict() if properties is None else properties
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        self.property_changed_match = (
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            self.proxy.connect_to_signal("PropertyChanged",
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                                         self._property_changed,
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                                         client_interface,
 
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            self.proxy.connect_to_signal("PropertiesChanged",
 
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                                         self.properties_changed,
 
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                                         dbus.PROPERTIES_IFACE,
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                                         byte_arrays=True))
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        if properties is None:
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        super(MandosClientPropertyCache, self).__init__(**kwargs)
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    def _property_changed(self, property, value):
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        """Helper which takes positional arguments"""
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        return self.property_changed(property=property, value=value)
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    def property_changed(self, property=None, value=None):
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        """This is called whenever we get a PropertyChanged signal
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        It updates the changed property in the "properties" dict.
 
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    def properties_changed(self, interface, properties, invalidated):
 
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        """This is called whenever we get a PropertiesChanged signal
 
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        It updates the changed properties in the "properties" dict.
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        """
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        # Update properties dict with new value
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        self.properties[property] = value
 
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        self.properties.update(properties)
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    def delete(self):
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        self.property_changed_match.remove()
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                                         self.rejected,
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                                         client_interface,
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                                         byte_arrays=True))
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        self.logger('Created client {0}'
 
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        self.logger('Created client {}'
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                    .format(self.properties["Name"]), level=0)
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    def using_timer(self, flag):
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    def checker_completed(self, exitstatus, condition, command):
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        if exitstatus == 0:
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            self.logger('Checker for client {0} (command "{1}")'
 
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            self.logger('Checker for client {} (command "{}")'
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                        ' succeeded'.format(self.properties["Name"],
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                                            command), level=0)
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            self.update()
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            return
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        # Checker failed
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        if os.WIFEXITED(condition):
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            self.logger('Checker for client {0} (command "{1}")'
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                        ' failed with exit code {2}'
 
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            self.logger('Checker for client {} (command "{}") failed'
 
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                        ' with exit code {}'
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                        .format(self.properties["Name"], command,
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                                os.WEXITSTATUS(condition)))
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        elif os.WIFSIGNALED(condition):
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            self.logger('Checker for client {0} (command "{1}") was'
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                        ' killed by signal {2}'
 
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            self.logger('Checker for client {} (command "{}") was'
 
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                        ' killed by signal {}'
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                        .format(self.properties["Name"], command,
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                                os.WTERMSIG(condition)))
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        elif os.WCOREDUMP(condition):
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            self.logger('Checker for client {0} (command "{1}")'
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                        ' dumped core'
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                        .format(self.properties["Name"], command))
 
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            self.logger('Checker for client {} (command "{}") dumped'
 
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                        ' core'.format(self.properties["Name"],
 
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                                       command))
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        else:
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            self.logger('Checker for client {0} completed'
 
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            self.logger('Checker for client {} completed'
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                        ' mysteriously'
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                        .format(self.properties["Name"]))
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        self.update()
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    def checker_started(self, command):
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        """Server signals that a checker started."""
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        self.logger('Client {0} started checker "{1}"'
 
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        self.logger('Client {} started checker "{}"'
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                    .format(self.properties["Name"],
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                            command), level=0)
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    def got_secret(self):
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        self.logger('Client {0} received its secret'
 
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        self.logger('Client {} received its secret'
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                    .format(self.properties["Name"]))
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    def need_approval(self, timeout, default):
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        if not default:
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            message = 'Client {0} needs approval within {1} seconds'
 
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            message = 'Client {} needs approval within {} seconds'
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        else:
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            message = 'Client {0} will get its secret in {1} seconds'
 
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            message = 'Client {} will get its secret in {} seconds'
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        self.logger(message.format(self.properties["Name"],
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                                   timeout/1000))
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    def rejected(self, reason):
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        self.logger('Client {0} was rejected; reason: {1}'
 
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        self.logger('Client {} was rejected; reason: {}'
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                    .format(self.properties["Name"], reason))
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    def selectable(self):
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            else:
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                timer = datetime.timedelta()
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            if self.properties["ApprovedByDefault"]:
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                message = "Approval in {0}. (d)eny?"
 
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                message = "Approval in {}. (d)eny?"
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            else:
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                message = "Denial in {0}. (a)pprove?"
 
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                message = "Denial in {}. (a)pprove?"
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            message = message.format(str(timer).rsplit(".", 1)[0])
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            self.using_timer(True)
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        elif self.properties["LastCheckerStatus"] != 0:
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                timer = max(expires - datetime.datetime.utcnow(),
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                            datetime.timedelta())
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            message = ('A checker has failed! Time until client'
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                       ' gets disabled: {0}'
 
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                       ' gets disabled: {}'
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                       .format(str(timer).rsplit(".", 1)[0]))
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            self.using_timer(True)
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        else:
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            message = "enabled"
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            self.using_timer(False)
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        self._text = "{0}{1}".format(base, message)
 
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        self._text = "{}{}".format(base, message)
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        if not urwid.supports_unicode():
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            self._text = self._text.encode("ascii", "replace")
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        else:
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            return key
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    def property_changed(self, property=None, **kwargs):
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        """Call self.update() if old value is not new value.
 
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    def properties_changed(self, interface, properties, invalidated):
 
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        """Call self.update() if any properties changed.
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        This overrides the method from MandosClientPropertyCache"""
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        property_name = str(property)
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        old_value = self.properties.get(property_name)
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        super(MandosClientWidget, self).property_changed(
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            property=property, **kwargs)
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        if self.properties.get(property_name) != old_value:
 
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        old_values = { key: self.properties.get(key)
 
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                       for key in properties.keys() }
 
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        super(MandosClientWidget, self).properties_changed(
 
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            interface, properties, invalidated)
 
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        if any(old_values[key] != self.properties.get(key)
 
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               for key in old_values):
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            self.update()
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        self.main_loop = gobject.MainLoop()
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    def client_not_found(self, fingerprint, address):
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        self.log_message("Client with address {0} and fingerprint"
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                         " {1} could not be found"
 
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        self.log_message("Client with address {} and fingerprint {}"
 
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                         " could not be found"
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                         .format(address, fingerprint))
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    def rebuild(self):
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        if level < self.log_level:
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            return
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        timestamp = datetime.datetime.now().isoformat()
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        self.log_message_raw("{0}: {1}".format(timestamp, message),
 
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        self.log_message_raw("{}: {}".format(timestamp, message),
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                             level=level)
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    def log_message_raw(self, markup, level=1):
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        """Toggle visibility of the log buffer."""
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        self.log_visible = not self.log_visible
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        self.rebuild()
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        self.log_message("Log visibility changed to: {0}"
 
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        self.log_message("Log visibility changed to: {}"
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                         .format(self.log_visible), level=0)
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    def change_log_display(self):
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            self.log_wrap = "clip"
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        for textwidget in self.log:
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            textwidget.set_wrap_mode(self.log_wrap)
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        self.log_message("Wrap mode: {0}".format(self.log_wrap),
 
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        self.log_message("Wrap mode: {}".format(self.log_wrap),
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                         level=0)
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    def find_and_remove_client(self, path, name):
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            client = self.clients_dict[path]
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        except KeyError:
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            # not found?
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            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
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            self.log_message("Unknown client {!r} ({!r}) removed"
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                             .format(name, path))
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            return
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        client.delete()
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            elif key == "window resize":
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                self.size = self.screen.get_cols_rows()
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                self.refresh()
664
 
            elif key == "\f":  # Ctrl-L
 
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            elif key == "ctrl l":
 
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                self.screen.clear()
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                self.refresh()
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            elif key == "l" or key == "D":
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                self.toggle_log_display()