104 lines
2.0 KiB
Plaintext
104 lines
2.0 KiB
Plaintext
/*
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Copyright 2013-present Barefoot Networks, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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header_type ethernet_t {
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fields {
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dstAddr : 48;
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srcAddr : 48;
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etherType : 16;
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}
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}
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header_type intrinsic_metadata_t {
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fields {
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mcast_grp : 4;
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egress_rid : 4;
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mcast_hash : 16;
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lf_field_list: 32;
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}
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}
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header_type cpu_header_t {
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fields {
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device: 8;
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reason: 8;
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}
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}
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header cpu_header_t cpu_header;
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parser start {
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return select(current(0, 64)) {
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0 : parse_cpu_header;
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default: parse_ethernet;
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}
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}
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header ethernet_t ethernet;
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metadata intrinsic_metadata_t intrinsic_metadata;
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parser parse_ethernet {
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extract(ethernet);
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return ingress;
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}
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parser parse_cpu_header {
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extract(cpu_header);
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return parse_ethernet;
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}
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action _drop() {
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drop();
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}
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action _nop() {
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}
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#define CPU_MIRROR_SESSION_ID 250
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field_list copy_to_cpu_fields {
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standard_metadata;
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}
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action do_copy_to_cpu() {
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clone_ingress_pkt_to_egress(CPU_MIRROR_SESSION_ID, copy_to_cpu_fields);
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}
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table copy_to_cpu {
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actions {do_copy_to_cpu;}
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size : 1;
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}
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control ingress {
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apply(copy_to_cpu);
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}
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action do_cpu_encap() {
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add_header(cpu_header);
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modify_field(cpu_header.device, 0);
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modify_field(cpu_header.reason, 0xab);
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}
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table redirect {
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reads { standard_metadata.instance_type : exact; }
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actions { _drop; do_cpu_encap; }
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size : 16;
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}
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control egress {
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apply(redirect);
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}
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