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/*
* Copyright 2017-present Open Networking Laboratory
*
* 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.
*/
#ifndef PACKET_IO
#define PACKET_IO
control PacketIoIngressControl(inout headers_t hdr, inout standard_metadata_t standard_metadata) {
apply {
if (hdr.packet_out.isValid()) {
standard_metadata.egress_spec = hdr.packet_out.egress_port;
}
}
}
control PacketIoEgressControl(inout headers_t hdr, inout standard_metadata_t standard_metadata) {
apply {
hdr.packet_out.setInvalid();
if (standard_metadata.egress_spec == CPU_PORT) {
hdr.packet_in.setValid();
hdr.packet_in.ingress_port = standard_metadata.ingress_port;
}
}
}
#endif