| /* |
| * Copyright 2017-present Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "../header.p4" |
| #include "../action.p4" |
| |
| control PacketIoIngress( |
| inout parsed_headers_t hdr, |
| inout fabric_metadata_t fabric_metadata, |
| inout standard_metadata_t standard_metadata) { |
| apply { |
| if (hdr.packet_out.isValid()) { |
| standard_metadata.egress_spec = hdr.packet_out.egress_port; |
| hdr.packet_out.setInvalid(); |
| exit; |
| } |
| } |
| } |
| |
| control PacketIoEgress( |
| inout parsed_headers_t hdr, |
| inout fabric_metadata_t fabric_metadata, |
| inout standard_metadata_t standard_metadata) { |
| action pop_vlan() { |
| hdr.ethernet.ether_type = hdr.vlan_tag.ether_type; |
| hdr.vlan_tag.setInvalid(); |
| } |
| apply { |
| if (standard_metadata.egress_port == CPU_PORT) { |
| if (hdr.vlan_tag.isValid() && fabric_metadata.pop_vlan_when_packet_in == _TRUE) { |
| pop_vlan(); |
| } |
| if (fabric_metadata.is_multicast == _TRUE && |
| fabric_metadata.clone_to_cpu == _FALSE) { |
| // Is multicast but clone was not requested. |
| drop_now(); |
| } |
| hdr.packet_in.setValid(); |
| hdr.packet_in.ingress_port = standard_metadata.ingress_port; |
| } |
| } |
| } |