main.p4

#include <core.p4>
#include <psa.p4>

header ethernet_h {
  bit<48>   dstAddr;
  bit<48>   srcAddr;
  bit<16>   etherType;
}

struct headers_t {
  ethernet_h   ethernet;
}

struct local_metadata_t {}
struct empty_metadata_t {}

parser ingress_parser(
  packet_in packet,
  out headers_t headers,
  inout local_metadata_t local_metadata,
  in psa_ingress_parser_input_metadata_t standard_metadata,
  in empty_metadata_t resub_meta,
  in empty_metadata_t recirc_meta) {

    state start {
      transition parse_ethernet;
    }
    state parse_ethernet {
      packet.extract(headers.ethernet);
      transition accept;
    }
}

control ingress(
  inout headers_t headers,
  inout local_metadata_t local_metadata1,
  in psa_ingress_input_metadata_t piim,
  inout psa_ingress_output_metadata_t piom) {

    apply {
//      bit<48> tmp = headers.ethernet.dstAddr;
//      headers.ethernet.dstAddr = headers.ethernet.srcAddr;
//      headers.ethernet.srcAddr = tmp;
      }
}

control ingress_deparser(
    packet_out packet,
    out empty_metadata_t clone_i2e_meta,
    out empty_metadata_t resubmit_meta,
    out empty_metadata_t normal_meta,
    inout headers_t headers,
    in local_metadata_t local_metadata,
    in psa_ingress_output_metadata_t istd) {

    apply {
      packet.emit(headers);
    }

}

parser egress_parser(packet_in packet, out headers_t headers, inout local_metadata_t local_metadata, in psa_egress_parser_input_metadata_t istd, in empty_metadata_t normal_meta, in empty_metadata_t clone_i2e_meta, in empty_metadata_t clone_e2e_meta) {
    state start {
      transition parse_ethernet;
    }
    state parse_ethernet {
      packet.extract(headers.ethernet);
      transition accept;
    }
}

control egress(inout headers_t headers, inout local_metadata_t local_metadata, in psa_egress_input_metadata_t istd, inout psa_egress_output_metadata_t ostd) {
    apply {
      bit<48> tmp = headers.ethernet.dstAddr;
      headers.ethernet.dstAddr = headers.ethernet.srcAddr;
      headers.ethernet.srcAddr = tmp;
    }
}

control egress_deparser(packet_out packet, out empty_metadata_t clone_e2e_meta, out empty_metadata_t recirculate_meta, inout headers_t headers, in local_metadata_t local_metadata, in psa_egress_output_metadata_t istd, in psa_egress_deparser_input_metadata_t edstd) {
    apply {
      packet.emit(headers);
    }
}

IngressPipeline(ingress_parser(), ingress(), ingress_deparser()) ip;

EgressPipeline(egress_parser(), egress(), egress_deparser()) ep;

PSA_Switch(ip, PacketReplicationEngine(), ep, BufferingQueueingEngine()) main;