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/*
* 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.
*/
#ifndef __HEADER__
#define __HEADER__
#include "define.p4"
@controller_header("packet_in")
header packet_in_header_t {
port_num_t ingress_port;
bit<7> _pad;
}
_PKT_OUT_HDR_ANNOT
@controller_header("packet_out")
header packet_out_header_t {
port_num_t egress_port;
bit<7> _pad;
}
header ethernet_t {
mac_addr_t dst_addr;
mac_addr_t src_addr;
bit<16> ether_type;
}
header vlan_tag_t {
bit<3> pri;
bit<1> cfi;
vlan_id_t vlan_id;
bit<16> ether_type;
}
header mpls_t {
bit<20> label;
bit<3> tc;
bit<1> bos;
bit<8> ttl;
}
header ipv4_t {
bit<4> version;
bit<4> ihl;
bit<8> diffserv;
bit<16> total_len;
bit<16> identification;
bit<3> flags;
bit<13> frag_offset;
bit<8> ttl;
bit<8> protocol;
bit<16> hdr_checksum;
bit<32> src_addr;
bit<32> dst_addr;
}
header ipv6_t {
bit<4> version;
bit<8> traffic_class;
bit<20> flow_label;
bit<16> payload_len;
bit<8> next_hdr;
bit<8> hop_limit;
bit<128> src_addr;
bit<128> dst_addr;
}
header arp_t {
bit<16> hw_type;
bit<16> proto_type;
bit<8> hw_addr_len;
bit<8> proto_addr_len;
bit<16> opcode;
}
header tcp_t {
bit<16> src_port;
bit<16> dst_port;
bit<32> seq_no;
bit<32> ack_no;
bit<4> data_offset;
bit<3> res;
bit<3> ecn;
bit<6> ctrl;
bit<16> window;
bit<16> checksum;
bit<16> urgent_ptr;
}
header udp_t {
bit<16> src_port;
bit<16> dst_port;
bit<16> len;
bit<16> checksum;
}
header icmp_t {
bit<8> icmp_type;
bit<8> icmp_code;
bit<16> checksum;
bit<16> identifier;
bit<16> sequence_number;
bit<64> timestamp;
}
#ifdef WITH_SPGW
// GTPU v1
header gtpu_t {
bit<3> version; /* version */
bit<1> pt; /* protocol type */
bit<1> spare; /* reserved */
bit<1> ex_flag; /* next extension hdr present? */
bit<1> seq_flag; /* sequence no. */
bit<1> npdu_flag; /* n-pdn number present ? */
bit<8> msgtype; /* message type */
bit<16> msglen; /* message length */
bit<32> teid; /* tunnel endpoint id */
}
struct spgw_meta_t {
_BOOL do_spgw;
direction_t direction;
bit<16> ipv4_len;
bit<32> teid;
bit<32> s1u_enb_addr;
bit<32> s1u_sgw_addr;
#ifdef WITH_SPGW_PCC_GATING
bit<16> l4_src_port;
bit<16> l4_dst_port;
pcc_gate_status_t pcc_gate_status;
sdf_rule_id_t sdf_rule_id;
pcc_rule_id_t pcc_rule_id;
#endif // WITH_SPGW_PCC_GATING
}
#endif // WITH_SPGW
//Custom metadata definition
struct fabric_metadata_t {
fwd_type_t fwd_type;
next_id_t next_id;
_BOOL pop_vlan_when_packet_in;
bit<8> ip_proto;
bit<16> l4_src_port;
bit<16> l4_dst_port;
bit<16> original_ether_type;
#ifdef WITH_SPGW
spgw_meta_t spgw;
#endif // WITH_SPGW
}
struct parsed_headers_t {
ethernet_t ethernet;
vlan_tag_t vlan_tag;
mpls_t mpls;
#ifdef WITH_SPGW
ipv4_t gtpu_ipv4;
udp_t gtpu_udp;
gtpu_t gtpu;
#endif // WITH_SPGW
ipv4_t ipv4;
#ifdef WITH_IPV6
ipv6_t ipv6;
#endif // WITH_IPV6
arp_t arp;
tcp_t tcp;
udp_t udp;
icmp_t icmp;
packet_out_header_t packet_out;
packet_in_header_t packet_in;
}
#endif