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# -*- coding: utf-8 -*-
#
# Copyright (C) 2011-2016 Red Hat, Inc.
#
# Authors:
# Thomas Woerner
#
# 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 .
#
from gi.repository import GLib
import copy
from firewall.core.base import SHORTCUTS, DEFAULT_ZONE_TARGET, SOURCE_IPSET_TYPES
from firewall.core.fw_transaction import FirewallTransaction
from firewall.core.io.policy import Policy
from firewall.core.logger import log
from firewall.core.rich import (
Rich_ForwardPort,
Rich_IcmpBlock,
Rich_IcmpType,
Rich_Mark,
Rich_Masquerade,
Rich_Port,
Rich_Protocol,
Rich_Rule,
Rich_Service,
Rich_SourcePort,
Rich_Tcp_Mss_Clamp
)
from firewall.core.fw_nm import nm_get_bus_name
from firewall.functions import checkIPnMask, checkIP6nMask, check_mac
from firewall import errors
from firewall.errors import FirewallError
class FirewallZone(object):
ZONE_POLICY_PRIORITY = 0
def __init__(self, fw):
self._fw = fw
self._zones = { }
self._zone_policies = { }
self._timeouts = {}
def __repr__(self):
return '%s(%r)' % (self.__class__, self._zones)
def cleanup(self):
self._zones.clear()
self._zone_policies.clear()
for _id in self._timeouts:
self.removeTimeout(_id)
def new_transaction(self):
t = FirewallTransaction(self._fw)
t.add_pre(self._fw.full_check_config)
return t
def policy_name_from_zones(self, fromZone, toZone):
return "zone_{fromZone}_{toZone}".format(fromZone=fromZone, toZone=toZone)
# zones
def get_zones(self):
return sorted(self._zones.keys())
def get_active_zones(self):
active_zones = []
for zone in self.get_zones():
if self.list_interfaces(zone) or self.list_sources(zone):
active_zones.append(zone)
return active_zones
def get_zone_of_interface(self, interface):
interface_id = self.__interface_id(interface)
for zone in self._zones:
if interface_id in self._zones[zone].interfaces:
# an interface can only be part of one zone
return zone
return None
def get_zone_of_source(self, source):
source_id = self.__source_id(source)
for zone in self._zones:
if source_id in self._zones[zone].sources:
# a source_id can only be part of one zone
return zone
return None
def get_zone(self, zone):
z = self._fw.check_zone(zone)
return self._zones[z]
def policy_obj_from_zone_obj(self, z_obj, fromZone, toZone):
p_obj = Policy()
p_obj.derived_from_zone = z_obj.name
p_obj.name = self.policy_name_from_zones(fromZone, toZone)
p_obj.priority = self.ZONE_POLICY_PRIORITY
p_obj.target = z_obj.target
p_obj.ingress_zones = [fromZone]
p_obj.egress_zones = [toZone]
# copy zone permanent config to policy permanent config
# WARN: This assumes the same at