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# -*- coding: utf-8 -*-
#
# Copyright (C) 2010-2016 Red Hat, Inc.
#
# Authors:
# Thomas Woerner <twoerner@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# force use of pygobject3 in python-slip
from gi.repository import GObject
import sys
sys.modules['gobject'] = GObject
import dbus
import dbus.service
import slip.dbus
import slip.dbus.service
from firewall import config
from firewall.dbus_utils import dbus_to_python, \
dbus_introspection_prepare_properties, \
dbus_introspection_add_properties
from firewall.core.io.icmptype import IcmpType
from firewall.core.logger import log
from firewall.server.decorators import handle_exceptions, \
dbus_handle_exceptions, dbus_service_method
from firewall import errors
from firewall.errors import FirewallError
############################################################################
#
# class FirewallDConfigIcmpType
#
############################################################################
class FirewallDConfigIcmpType(slip.dbus.service.Object):
"""FirewallD main class"""
persistent = True
""" Make FirewallD persistent. """
default_polkit_auth_required = config.dbus.PK_ACTION_CONFIG
""" Use PK_ACTION_INFO as a default """
@handle_exceptions
def __init__(self, parent, conf, icmptype, item_id, *args, **kwargs):
super(FirewallDConfigIcmpType, self).__init__(*args, **kwargs)
self.parent = parent
self.config = conf
self.obj = icmptype
self.item_id = item_id
self.busname = args[0]
self.path = args[1]
self._log_prefix = "config.icmptype.%d" % self.item_id
dbus_introspection_prepare_properties(
self, config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE)
@dbus_handle_exceptions
def __del__(self):
pass
@dbus_handle_exceptions
def unregister(self):
self.remove_from_connection()
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# P R O P E R T I E S
@dbus_handle_exceptions
def _get_property(self, property_name):
if property_name == "name":
return dbus.String(self.obj.name)
elif property_name == "filename":
return dbus.String(self.obj.filename)
elif property_name == "path":
return dbus.String(self.obj.path)
elif property_name == "default":
return dbus.Boolean(self.obj.default)
elif property_name == "builtin":
return dbus.Boolean(self.obj.builtin)
else:
raise dbus.exceptions.DBusException(
"org.freedesktop.DBus.Error.InvalidArgs: "
"Property '%s' does not exist" % property_name)
@dbus_service_method(dbus.PROPERTIES_IFACE, in_signature='ss',
out_signature='v')
@dbus_handle_exceptions
def Get(self, interface_name, property_name, sender=None): # pylint: disable=W0613
# get a property
interface_name = dbus_to_python(interface_name, str)
property_name = dbus_to_python(property_name, str)
log.debug1("%s.Get('%s', '%s')", self._log_prefix,
interface_name, property_name)
if interface_name != config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE:
raise dbus.exceptions.DBusException(
"org.freedesktop.DBus.Error.UnknownInterface: "
"Interface '%s' does not exist" % interface_name)
return self._get_property(property_name)
@dbus_service_method(dbus.PROPERTIES_IFACE, in_signature='s',
out_signature='a{sv}')
@dbus_handle_exceptions
def GetAll(self, interface_name, sender=None): # pylint: disable=W0613
interface_name = dbus_to_python(interface_name, str)
log.debug1("%s.GetAll('%s')", self._log_prefix, interface_name)
if interface_name != config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE:
raise dbus.exceptions.DBusException(
"org.freedesktop.DBus.Error.UnknownInterface: "
"Interface '%s' does not exist" % interface_name)
ret = { }
for x in [ "name", "filename", "path", "default", "builtin" ]:
ret[x] = self._get_property(x)
return dbus.Dictionary(ret, signature="sv")
@slip.dbus.polkit.require_auth(config.dbus.PK_ACTION_CONFIG)
@dbus_service_method(dbus.PROPERTIES_IFACE, in_signature='ssv')
@dbus_handle_exceptions
def Set(self, interface_name, property_name, new_value, sender=None):
interface_name = dbus_to_python(interface_name, str)
property_name = dbus_to_python(property_name, str)
new_value = dbus_to_python(new_value)
log.debug1("%s.Set('%s', '%s', '%s')", self._log_prefix,
interface_name, property_name, new_value)
self.parent.accessCheck(sender)
if interface_name != config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE:
raise dbus.exceptions.DBusException(
"org.freedesktop.DBus.Error.UnknownInterface: "
"Interface '%s' does not exist" % interface_name)
raise dbus.exceptions.DBusException(
"org.freedesktop.DBus.Error.PropertyReadOnly: "
"Property '%s' is read-only" % property_name)
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature='sa{sv}as')
def PropertiesChanged(self, interface_name, changed_properties,
invalidated_properties):
interface_name = dbus_to_python(interface_name, str)
changed_properties = dbus_to_python(changed_properties)
invalidated_properties = dbus_to_python(invalidated_properties)
log.debug1("%s.PropertiesChanged('%s', '%s', '%s')", self._log_prefix,
interface_name, changed_properties, invalidated_properties)
@slip.dbus.polkit.require_auth(config.dbus.PK_ACTION_INFO)
@dbus_service_method(dbus.INTROSPECTABLE_IFACE, out_signature='s')
@dbus_handle_exceptions
def Introspect(self, sender=None): # pylint: disable=W0613
log.debug2("%s.Introspect()", self._log_prefix)
data = super(FirewallDConfigIcmpType, self).Introspect(
self.path, self.busname.get_bus())
return dbus_introspection_add_properties(
self, data, config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE)
# S E T T I N G S
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
out_signature=IcmpType.DBUS_SIGNATURE)
@dbus_handle_exceptions
def getSettings(self, sender=None): # pylint: disable=W0613
"""get settings for icmptype
"""
log.debug1("%s.getSettings()", self._log_prefix)
return self.config.get_icmptype_config(self.obj)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
in_signature=IcmpType.DBUS_SIGNATURE)
@dbus_handle_exceptions
def update(self, settings, sender=None):
"""update settings for icmptype
"""
settings = dbus_to_python(settings)
log.debug1("%s.update('...')", self._log_prefix)
self.parent.accessCheck(sender)
self.obj = self.config.set_icmptype_config(self.obj, settings)
self.Updated(self.obj.name)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE)
@dbus_handle_exceptions
def loadDefaults(self, sender=None):
"""load default settings for builtin icmptype
"""
log.debug1("%s.loadDefaults()", self._log_prefix)
self.parent.accessCheck(sender)
self.obj = self.config.load_icmptype_defaults(self.obj)
self.Updated(self.obj.name)
@dbus.service.signal(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
signature='s')
@dbus_handle_exceptions
def Updated(self, name):
log.debug1("%s.Updated('%s')" % (self._log_prefix, name))
# R E M O V E
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE)
@dbus_handle_exceptions
def remove(self, sender=None):
"""remove icmptype
"""
log.debug1("%s.removeIcmpType()", self._log_prefix)
self.parent.accessCheck(sender)
self.config.remove_icmptype(self.obj)
self.parent.removeIcmpType(self.obj)
@dbus.service.signal(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
signature='s')
@dbus_handle_exceptions
def Removed(self, name):
log.debug1("%s.Removed('%s')" % (self._log_prefix, name))
# R E N A M E
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
in_signature='s')
@dbus_handle_exceptions
def rename(self, name, sender=None):
"""rename icmptype
"""
name = dbus_to_python(name, str)
log.debug1("%s.rename('%s')", self._log_prefix, name)
self.parent.accessCheck(sender)
self.obj = self.config.rename_icmptype(self.obj, name)
self.Renamed(name)
@dbus.service.signal(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
signature='s')
@dbus_handle_exceptions
def Renamed(self, name):
log.debug1("%s.Renamed('%s')" % (self._log_prefix, name))
# version
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
out_signature='s')
@dbus_handle_exceptions
def getVersion(self, sender=None): # pylint: disable=W0613
log.debug1("%s.getVersion()", self._log_prefix)
return self.getSettings()[0]
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
in_signature='s')
@dbus_handle_exceptions
def setVersion(self, version, sender=None):
version = dbus_to_python(version, str)
log.debug1("%s.setVersion('%s')", self._log_prefix, version)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
settings[0] = version
self.update(settings)
# short
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
out_signature='s')
@dbus_handle_exceptions
def getShort(self, sender=None): # pylint: disable=W0613
log.debug1("%s.getShort()", self._log_prefix)
return self.getSettings()[1]
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
in_signature='s')
@dbus_handle_exceptions
def setShort(self, short, sender=None):
short = dbus_to_python(short, str)
log.debug1("%s.setShort('%s')", self._log_prefix, short)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
settings[1] = short
self.update(settings)
# description
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
out_signature='s')
@dbus_handle_exceptions
def getDescription(self, sender=None): # pylint: disable=W0613
log.debug1("%s.getDescription()", self._log_prefix)
return self.getSettings()[2]
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
in_signature='s')
@dbus_handle_exceptions
def setDescription(self, description, sender=None):
description = dbus_to_python(description, str)
log.debug1("%s.setDescription('%s')", self._log_prefix,
description)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
settings[2] = description
self.update(settings)
# destination
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
out_signature='as')
@dbus_handle_exceptions
def getDestinations(self, sender=None): # pylint: disable=W0613
log.debug1("%s.getDestinations()", self._log_prefix)
return sorted(self.getSettings()[3])
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
in_signature='as')
@dbus_handle_exceptions
def setDestinations(self, destinations, sender=None):
destinations = dbus_to_python(destinations, list)
log.debug1("%s.setDestinations('[%s]')", self._log_prefix,
",".join(destinations))
self.parent.accessCheck(sender)
settings = list(self.getSettings())
settings[3] = destinations
self.update(settings)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
in_signature='s')
@dbus_handle_exceptions
def addDestination(self, destination, sender=None):
destination = dbus_to_python(destination, str)
log.debug1("%s.addDestination('%s')", self._log_prefix,
destination)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
if destination in settings[3]:
raise FirewallError(errors.ALREADY_ENABLED, destination)
settings[3].append(destination)
self.update(settings)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
in_signature='s')
@dbus_handle_exceptions
def removeDestination(self, destination, sender=None):
destination = dbus_to_python(destination, str)
log.debug1("%s.removeDestination('%s')", self._log_prefix,
destination)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
if settings[3]:
if destination not in settings[3]:
raise FirewallError(errors.NOT_ENABLED, destination)
else:
settings[3].remove(destination)
else: # empty means all
settings[3] = list(set(['ipv4', 'ipv6']) -
set([destination]))
self.update(settings)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_ICMPTYPE,
in_signature='s', out_signature='b')
@dbus_handle_exceptions
def queryDestination(self, destination, sender=None): # pylint: disable=W0613
destination = dbus_to_python(destination, str)
log.debug1("%s.queryDestination('%s')", self._log_prefix,
destination)
settings = self.getSettings()
# empty means all
return (not settings[3] or
destination in settings[3])
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