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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.helper import Helper
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 FirewallDConfig
#
############################################################################
class FirewallDConfigHelper(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, helper, item_id, *args, **kwargs):
super(FirewallDConfigHelper, self).__init__(*args, **kwargs)
self.parent = parent
self.config = conf
self.obj = helper
self.item_id = item_id
self.busname = args[0]
self.path = args[1]
self._log_prefix = "config.helper.%d" % self.item_id
dbus_introspection_prepare_properties(
self, config.dbus.DBUS_INTERFACE_CONFIG_HELPER)
@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_HELPER:
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_HELPER:
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_HELPER:
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(FirewallDConfigHelper, self).Introspect(
self.path, self.busname.get_bus())
return dbus_introspection_add_properties(
self, data, config.dbus.DBUS_INTERFACE_CONFIG_HELPER)
# S E T T I N G S
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
out_signature=Helper.DBUS_SIGNATURE)
@dbus_handle_exceptions
def getSettings(self, sender=None): # pylint: disable=W0613
"""get settings for helper
"""
log.debug1("%s.getSettings()", self._log_prefix)
return self.config.get_helper_config(self.obj)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
in_signature=Helper.DBUS_SIGNATURE)
@dbus_handle_exceptions
def update(self, settings, sender=None):
"""update settings for helper
"""
settings = dbus_to_python(settings)
log.debug1("%s.update('...')", self._log_prefix)
self.parent.accessCheck(sender)
self.obj = self.config.set_helper_config(self.obj, settings)
self.Updated(self.obj.name)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER)
@dbus_handle_exceptions
def loadDefaults(self, sender=None):
"""load default settings for builtin helper
"""
log.debug1("%s.loadDefaults()", self._log_prefix)
self.parent.accessCheck(sender)
self.obj = self.config.load_helper_defaults(self.obj)
self.Updated(self.obj.name)
@dbus.service.signal(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
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_HELPER)
@dbus_handle_exceptions
def remove(self, sender=None):
"""remove helper
"""
log.debug1("%s.removeHelper()", self._log_prefix)
self.parent.accessCheck(sender)
self.config.remove_helper(self.obj)
self.parent.removeHelper(self.obj)
@dbus.service.signal(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
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_HELPER,
in_signature='s')
@dbus_handle_exceptions
def rename(self, name, sender=None):
"""rename helper
"""
name = dbus_to_python(name, str)
log.debug1("%s.rename('%s')", self._log_prefix, name)
self.parent.accessCheck(sender)
self.obj = self.config.rename_helper(self.obj, name)
self.Renamed(name)
@dbus.service.signal(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
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_HELPER,
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_HELPER,
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_HELPER,
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_HELPER,
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_HELPER,
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_HELPER,
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)
# family
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
out_signature='s')
@dbus_handle_exceptions
def getFamily(self, sender=None):
log.debug1("%s.getFamily()", self._log_prefix)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
return settings[3]
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
in_signature='s')
@dbus_handle_exceptions
def setFamily(self, ipv, sender=None):
ipv = dbus_to_python(ipv, str)
log.debug1("%s.setFamily('%s')", self._log_prefix, ipv)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
if settings[3] == ipv:
raise FirewallError(errors.ALREADY_ENABLED, "'%s'" % ipv)
settings[3] = ipv
self.update(settings)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
in_signature='s', out_signature='b')
@dbus_handle_exceptions
def queryFamily(self, ipv, sender=None): # pylint: disable=W0613
ipv = dbus_to_python(ipv, str)
log.debug1("%s.queryFamily('%s')", self._log_prefix, ipv)
settings = self.getSettings()
return (settings[3] == ipv)
# module
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
out_signature='s')
@dbus_handle_exceptions
def getModule(self, sender=None):
log.debug1("%s.getModule()", self._log_prefix)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
return settings[4]
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
in_signature='s')
@dbus_handle_exceptions
def setModule(self, module, sender=None):
module = dbus_to_python(module, str)
log.debug1("%s.setModule('%s')", self._log_prefix, module)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
if settings[4] == module:
raise FirewallError(errors.ALREADY_ENABLED, "'%s'" % module)
settings[4] = module
self.update(settings)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
in_signature='s', out_signature='b')
@dbus_handle_exceptions
def queryModule(self, module, sender=None): # pylint: disable=W0613
module = dbus_to_python(module, str)
log.debug1("%s.queryModule('%s')", self._log_prefix, module)
settings = self.getSettings()
return (settings[4] == module)
# port
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
out_signature='a(ss)')
@dbus_handle_exceptions
def getPorts(self, sender=None): # pylint: disable=W0613
log.debug1("%s.getPorts()", self._log_prefix)
return self.getSettings()[5]
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
in_signature='a(ss)')
@dbus_handle_exceptions
def setPorts(self, ports, sender=None):
_ports = [ ]
# convert embedded lists to tuples
for port in dbus_to_python(ports, list):
if isinstance(port, list):
_ports.append(tuple(port))
else:
_ports.append(port)
ports = _ports
log.debug1("%s.setPorts('[%s]')", self._log_prefix,
",".join("('%s, '%s')" % (port[0], port[1]) for port in ports))
self.parent.accessCheck(sender)
settings = list(self.getSettings())
settings[5] = ports
self.update(settings)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
in_signature='ss')
@dbus_handle_exceptions
def addPort(self, port, protocol, sender=None):
port = dbus_to_python(port, str)
protocol = dbus_to_python(protocol, str)
log.debug1("%s.addPort('%s', '%s')", self._log_prefix, port,
protocol)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
if (port,protocol) in settings[5]:
raise FirewallError(errors.ALREADY_ENABLED,
"%s:%s" % (port, protocol))
settings[5].append((port,protocol))
self.update(settings)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
in_signature='ss')
@dbus_handle_exceptions
def removePort(self, port, protocol, sender=None):
port = dbus_to_python(port, str)
protocol = dbus_to_python(protocol, str)
log.debug1("%s.removePort('%s', '%s')", self._log_prefix, port,
protocol)
self.parent.accessCheck(sender)
settings = list(self.getSettings())
if (port,protocol) not in settings[5]:
raise FirewallError(errors.NOT_ENABLED, "%s:%s" % (port, protocol))
settings[5].remove((port,protocol))
self.update(settings)
@dbus_service_method(config.dbus.DBUS_INTERFACE_CONFIG_HELPER,
in_signature='ss', out_signature='b')
@dbus_handle_exceptions
def queryPort(self, port, protocol, sender=None): # pylint: disable=W0613
port = dbus_to_python(port, str)
protocol = dbus_to_python(protocol, str)
log.debug1("%s.queryPort('%s', '%s')", self._log_prefix, port,
protocol)
return (port,protocol) in self.getSettings()[5]
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