114 lines
No EOL
2 KiB
Text
114 lines
No EOL
2 KiB
Text
/* -*- P4_16 -*- */
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#ifndef HEADERS_P4
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#define HEADERS_P4
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#include <core.p4>
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#include <v1model.p4>
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typedef bit<48> mac_addr_t;
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typedef bit<32> ipv4_addr_t;
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typedef bit<128> ipv6_addr_t;
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typedef bit<9> port_t;
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const bit<16> TYPE_IPV4 = 0x0800;
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const bit<16> TYPE_IPV6 = 0x86DD;
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const bit<8> PROTO_ICMP = 1;
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const bit<8> PROTO_TCP = 6;
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const bit<8> PROTO_UDP = 17;
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const bit<8> PROTO_ICMP6 = 58;
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const bit<8> TCP_SEQ_LEN = 4;
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header ethernet_t {
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mac_addr_t dst_addr;
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mac_addr_t src_addr;
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bit<16> ethertype;
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}
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header ipv4_t {
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bit<4> version;
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bit<4> ihl;
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bit<6> diff_serv;
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bit<2> ecn;
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bit<16> totalLen;
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bit<16> identification;
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bit<3> flags;
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bit<13> fragOffset;
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bit<8> ttl;
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bit<8> protocol;
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bit<16> hdrChecksum;
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ipv4_addr_t src_addr;
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ipv4_addr_t dst_addr;
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}
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/* https://en.wikipedia.org/wiki/IPv6_packet */
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header ipv6_t {
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bit<4> version;
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bit<8> traffic_class;
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bit<20> flow_label;
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bit<16> payload_length;
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bit<8> next_header;
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bit<8> hop_limit;
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ipv6_addr_t src_addr;
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ipv6_addr_t dst_addr;
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}
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header tcp_t{
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bit<16> src_port;
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bit<16> dst_port;
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int<32> seqNo;
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int<32> ackNo;
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bit<4> data_offset;
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bit<4> res;
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bit<1> cwr;
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bit<1> ece;
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bit<1> urg;
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bit<1> ack;
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bit<1> psh;
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bit<1> rst;
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bit<1> syn;
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bit<1> fin;
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bit<16> window;
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bit<16> checksum;
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bit<16> urgentPtr;
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}
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header udp_t {
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bit<16> src_port;
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bit<16> dst_port;
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bit<16> payload_length;
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bit<16> checksum;
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}
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header icmp6_t {
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bit<8> type;
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bit<8> code;
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bit<16> checksum;
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}
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header icmp_t {
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bit<8> type;
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bit<8> code;
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bit<16> checksum;
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bit<32> rest;
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}
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struct headers {
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ethernet_t ethernet;
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ipv4_t ipv4;
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ipv6_t ipv6;
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tcp_t tcp;
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udp_t udp;
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icmp6_t icmp6;
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icmp_t icmp;
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}
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struct metadata {
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bit<16> tcp_length;
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}
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#endif |