def _add_resolved_route(self, vlan, ip_gw, ip_dst, eth_dst, is_updated=None): ofmsgs = [] if is_updated is not None: in_match = self.valve_in_match( self.fib_table, vlan=vlan, eth_type=self._eth_type(), nw_dst=ip_dst) prefixlen = ipaddr.IPNetwork(ip_dst).prefixlen priority = self.route_priority + prefixlen if is_updated: self.logger.info( 'Updating next hop for route %s via %s (%s)', ip_dst, ip_gw, eth_dst) ofmsgs.extend(self.valve_flowdel( self.fib_table, in_match, priority=priority)) else: self.logger.info( 'Adding new route %s via %s (%s)', ip_dst, ip_gw, eth_dst) ofmsgs.append(self.valve_flowmod( self.fib_table, in_match, priority=priority, inst=[valve_of.apply_actions( [valve_of.set_eth_src(self.faucet_mac), valve_of.set_eth_dst(eth_dst), valve_of.dec_ip_ttl()])] + [valve_of.goto_table(self.eth_dst_table)])) now = time.time() link_neighbor = LinkNeighbor(eth_dst, now) neighbor_cache = self._vlan_neighbor_cache(vlan) neighbor_cache[ip_gw] = link_neighbor return ofmsgs
def _add_resolved_route(self, vlan, ip_gw, ip_dst, eth_dst, is_updated=None): ofmsgs = [] if is_updated is not None: in_match = self.valve_in_match( self.fib_table, vlan=vlan, eth_type=self._eth_type(), nw_dst=ip_dst) prefixlen = ipaddr.IPNetwork(ip_dst).prefixlen priority = self.route_priority + prefixlen if is_updated: self.logger.info( 'Updating next hop for route %s via %s (%s)', ip_dst, ip_gw, eth_dst) ofmsgs.extend(self.valve_flowdel( self.fib_table, in_match, priority=priority)) else: self.logger.info( 'Adding new route %s via %s (%s)', ip_dst, ip_gw, eth_dst) if self.use_group_table: inst = [valve_of.apply_actions([valve_of.group_act( group_id=self.ip_gw_to_group_id[ip_gw])])] else: inst = [valve_of.apply_actions([ valve_of.set_eth_src(self.faucet_mac), valve_of.set_eth_dst(eth_dst), valve_of.dec_ip_ttl()]), valve_of.goto_table(self.eth_dst_table)] ofmsgs.append(self.valve_flowmod( self.fib_table, in_match, priority=priority, inst=inst)) return ofmsgs
def _nexthop_actions(self, eth_dst, vlan): ofmsgs = [] if self.routers: ofmsgs.append(valve_of.set_vlan_vid(vlan.vid)) ofmsgs.extend([ valve_of.set_eth_src(self.faucet_mac), valve_of.set_eth_dst(eth_dst), valve_of.dec_ip_ttl()]) return 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
def _nexthop_actions(self, eth_dst): return [ valve_of.set_eth_src(self.faucet_mac), valve_of.set_eth_dst(eth_dst), valve_of.dec_ip_ttl() ]
def _nexthop_actions(self, eth_dst): return [ valve_of.set_eth_src(self.faucet_mac), valve_of.set_eth_dst(eth_dst), valve_of.dec_ip_ttl()]