def _build_group_buckets(self, vlan, unicast_flood): buckets = [] for port in vlan.tagged_flood_ports(unicast_flood): buckets.append(valve_of.bucket( actions=[valve_of.output_port(port.number)])) for port in vlan.untagged_flood_ports(unicast_flood): buckets.append(valve_of.bucket( actions=[ valve_of.pop_vlan(), valve_of.output_port(port.number)])) return buckets
def _nexthop_group_buckets(self, vlan, in_port, eth_src): actions = self._nexthop_actions(eth_src) if not vlan.port_is_tagged(in_port): actions.append(valve_of.pop_vlan()) actions.append(valve_of.output_port(in_port)) buckets = [valve_of.bucket(actions=actions)] return buckets
def build_output_actions(output_dict): """Implement actions to alter packet/output.""" output_actions = [] output_port = None ofmsgs = [] # if destination rewriting selected, rewrite it. if 'dl_dst' in output_dict: output_actions.append(valve_of.set_eth_dst(output_dict['dl_dst'])) # rewrite any VLAN headers. vlan_actions = rewrite_vlan(output_dict) if vlan_actions: output_actions.extend(vlan_actions) if 'port' in output_dict: output_port = output_dict['port'] output_actions.append(valve_of.output_port(output_port)) if 'failover' in output_dict: failover = output_dict['failover'] group_id = failover['group_id'] buckets = [] for port in failover['ports']: buckets.append( valve_of.bucket(watch_port=port, actions=[valve_of.output_port(port)])) ofmsgs.append(valve_of.groupdel(group_id=group_id)) ofmsgs.append(valve_of.groupadd_ff(group_id=group_id, buckets=buckets)) output_actions.append(valve_of.group_act(group_id=group_id)) return (output_port, output_actions, ofmsgs)
def _update_nexthop(self, vlan, in_port, eth_src, resolved_ip_gw): ofmsgs = [] is_updated = None routes = self._vlan_routes(vlan) group_mod_method = None group_id = None nexthop_cache_entry = self._vlan_nexthop_cache_entry( vlan, resolved_ip_gw) if (nexthop_cache_entry is not None and nexthop_cache_entry.eth_src is not None): cached_eth_dst = nexthop_cache_entry.eth_src if cached_eth_dst != eth_src: is_updated = True if self.use_group_table: group_mod_method = valve_of.groupmod group_id = self.ip_gw_to_group_id[resolved_ip_gw] else: is_updated = False if self.use_group_table: group_mod_method = valve_of.groupadd group_id = self._group_id_from_ip_gw(resolved_ip_gw) self.ip_gw_to_group_id[resolved_ip_gw] = group_id if is_updated is not None: if self.use_group_table: actions = [] actions.extend([ valve_of.set_eth_src(self.faucet_mac), valve_of.set_eth_dst(eth_src), valve_of.dec_ip_ttl()]) if not vlan.port_is_tagged(in_port): actions.append(valve_of.pop_vlan()) actions.append(valve_of.output_port(in_port)) ofmsgs.append(group_mod_method( group_id=group_id, buckets=[valve_of.bucket(actions=actions)])) for ip_dst, ip_gw in routes.iteritems(): if ip_gw == resolved_ip_gw: ofmsgs.extend(self._add_resolved_route( vlan, ip_gw, ip_dst, eth_src, is_updated)) self._update_nexthop_cache(vlan, eth_src, resolved_ip_gw) return ofmsgs