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InFaRR.p4
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InFaRR.p4
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/* -*- P4_16 -*- */
#include <core.p4>
#include <v1model.p4>
/* Define constants for types of packets */
#define PKT_INSTANCE_TYPE_NORMAL 0
#define PKT_INSTANCE_TYPE_INGRESS_CLONE 1
#define PKT_INSTANCE_TYPE_EGRESS_CLONE 2
#define PKT_INSTANCE_TYPE_COALESCED 3
#define PKT_INSTANCE_TYPE_INGRESS_RECIRC 4
#define PKT_INSTANCE_TYPE_REPLICATION 5
#define PKT_INSTANCE_TYPE_RESUBMIT 6
const bit<48> TESTE = 1;
const bit<16> TYPE_IPV4 = 0x800;
const bit<8> TYPE_TCP = 6;
const bit<8> TYPE_UDP = 17;
const bit<8> TYPE_ICMP = 1;
const bit<1> PORTA_DOWN = 1;
const bit<1> PORTA_UP = 0;
const bit<1> PIVO_FRR = 1;
const bit<1> NAO = 0;
const bit<1> SIM = 1;
const bit<1> REVALIDA = 1;
const bit<1> NAO_REVALIDA = 0;
const bit<32> NUMERO_FLUXOS = 100000;
const bit<32> NUMERO_PORTAS = 4;
const bit<48> TIME_OUT_GATILHO = 500000;
const bit<48> TIME_OUT_RECUPERA_FLUXO = 100000;
const bit<48> TIME_OUT_RECUPERA_ENLACE = 500000;
const bit<48> TIME_OUT_VALIDA_CLONE = 250000;
/*************************************************************************
*********************** H E A D E R S ***********************************
*************************************************************************/
typedef bit<9> egressSpec_t;
typedef bit<48> macAddr_t;
typedef bit<32> ip4Addr_t;
header ethernet_t {
macAddr_t dstAddr;
macAddr_t srcAddr;
bit<16> etherType;
}
header ipv4_t {
bit<4> version;
bit<4> ihl;
bit<8> diffserv;
bit<16> totalLen;
bit<16> identification;
bit<3> flags;
bit<13> fragOffset;
bit<8> ttl;
bit<8> protocol;
bit<16> hdrChecksum;
ip4Addr_t srcAddr;
ip4Addr_t dstAddr;
}
header tcp_t{
bit<16> srcPort;
bit<16> dstPort;
bit<32> seqNo;
bit<32> ackNo;
bit<4> dataOffset;
bit<4> res;
bit<1> cwr;
bit<1> ece;
bit<1> urg;
bit<1> ack;
bit<1> psh;
bit<1> rst;
bit<1> syn;
bit<1> fin;
bit<16> window;
bit<16> checksum;
bit<16> urgentPtr;
}
header udp_t {
bit<16> srcPort;
bit<16> dstPort;
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;
}
struct metadata {
/* empty */
}
struct headers {
ethernet_t ethernet;
ipv4_t ipv4;
tcp_t tcp;
udp_t udp;
icmp_t icmp;
}
/*************************************************************************
*********************** P A R S E R ***********************************
*************************************************************************/
parser MyParser(packet_in packet,
out headers hdr,
inout metadata meta,
inout standard_metadata_t standard_metadata) {
state start {
transition parse_ethernet;
}
state parse_ethernet {
packet.extract(hdr.ethernet);
transition select(hdr.ethernet.etherType) {
TYPE_IPV4: parse_ipv4;
default: accept;
}
}
state parse_ipv4 {
packet.extract(hdr.ipv4);
transition select(hdr.ipv4.protocol){
TYPE_ICMP: parse_icmp;
TYPE_UDP: parse_udp;
TYPE_TCP: parse_tcp;
default: accept;
}
}
state parse_tcp {
packet.extract(hdr.tcp);
transition accept;
}
state parse_udp {
packet.extract(hdr.udp);
transition accept;
}
state parse_icmp {
packet.extract(hdr.icmp);
transition accept;
}
}
/*************************************************************************
************ C H E C K S U M V E R I F I C A T I O N *************
*************************************************************************/
control MyVerifyChecksum(inout headers hdr, inout metadata meta) {
apply { }
}
/*************************************************************************
************** I N G R E S S P R O C E S S I N G *******************
*************************************************************************/
control MyIngress(inout headers hdr,
inout metadata meta,
inout standard_metadata_t standard_metadata) {
register<bit<1>>(NUMERO_PORTAS) porta_status;
register<bit<9>>(NUMERO_FLUXOS) fluxo_porta_entrada;
register<bit<48>>(NUMERO_FLUXOS) fluxo_mac_entrada;
register<bit<1>>(NUMERO_FLUXOS) fluxo_status;
register<bit<48>>(NUMERO_FLUXOS) fluxo_tempo;
register<bit<1>>(NUMERO_FLUXOS) fluxo_pivo_saida;
register<bit<1>>(NUMERO_FLUXOS) clone_valida_fluxo;
register<bit<16>>(NUMERO_PORTAS) SW_ID;
// registra a porta thrift.... para troubleshooting
register<bit<48>>(NUMERO_PORTAS) pacote_gatilho;
action drop() {
mark_to_drop(standard_metadata);
}
action fake_drop() {
}
action ipv4_forward(macAddr_t dstAddr, egressSpec_t port) {
standard_metadata.egress_spec = port;
hdr.ethernet.srcAddr = hdr.ethernet.dstAddr;
hdr.ethernet.dstAddr = dstAddr;
hdr.ipv4.ttl = hdr.ipv4.ttl - 1;
}
action ipv4_forward_backup(macAddr_t dstAddr, egressSpec_t port) {
standard_metadata.egress_spec = port;
hdr.ethernet.dstAddr = dstAddr;
}
table ipv4_lpm {
key = {
hdr.ipv4.dstAddr: lpm;
}
actions = {
ipv4_forward;
drop;
NoAction;
}
size = 1024;
default_action = drop();
}
table ipv4_lpm_backup {
key = {
hdr.ipv4.dstAddr: lpm;
}
actions = {
ipv4_forward_backup;
drop;
NoAction;
}
size = 1024;
default_action = drop();
}
apply {
bit<1> var_status_porta_saida;
bit<1> var_status_fluxo_saida;
bit<48> var_fluxo_tempo;
bit<48> var_hash_fluxo_porta_saida;
bit<1> var_hash_fluxo_porta_entrada;
bit<9> var_fluxo_porta_entrada;
bit<1> var_fluxo_pivo_saida;
bit<9> var_saida_primeira_rota;
bit<1> var_clone_valida_fluxo;
bit<1> var_drop;
bit<16> varSW_ID;
bit<48> var_pacote_gatilho;
var_status_porta_saida = 0;
var_drop=NAO;
var_status_fluxo_saida = 0;
if (hdr.ipv4.isValid()) {
if (hdr.ipv4.protocol==TYPE_ICMP){
hash(var_hash_fluxo_porta_entrada,HashAlgorithm.crc32, (bit<32>)0, {hdr.ipv4.srcAddr, hdr.ipv4.dstAddr},(bit<32>)NUMERO_FLUXOS);
} else if (hdr.ipv4.protocol==TYPE_TCP){
hash(var_hash_fluxo_porta_entrada,HashAlgorithm.crc32, (bit<32>)0, {hdr.ipv4.srcAddr, hdr.ipv4.dstAddr, hdr.tcp.srcPort, hdr.tcp.dstPort},(bit<32>)NUMERO_FLUXOS);
} else if (hdr.ipv4.protocol==TYPE_UDP){
hash(var_hash_fluxo_porta_entrada,HashAlgorithm.crc32, (bit<32>)0, {hdr.ipv4.srcAddr, hdr.ipv4.dstAddr, hdr.udp.srcPort, hdr.udp.dstPort},(bit<32>)NUMERO_FLUXOS);
} else {
var_hash_fluxo_porta_entrada=0;
}
fluxo_porta_entrada.read(var_fluxo_porta_entrada,(bit<32>)var_hash_fluxo_porta_entrada);
if (var_fluxo_porta_entrada == 0){
fluxo_porta_entrada.write((bit<32>)var_hash_fluxo_porta_entrada,standard_metadata.ingress_port);
fluxo_mac_entrada.write((bit<32>)var_hash_fluxo_porta_entrada,hdr.ethernet.srcAddr);
var_fluxo_porta_entrada = standard_metadata.ingress_port;
}
if (hdr.ipv4.ttl>0) {
ipv4_lpm.apply();
pacote_gatilho.read(var_pacote_gatilho,(bit<32>)standard_metadata.egress_spec);
if (((var_pacote_gatilho<=(bit<48>)hdr.tcp.seqNo)&&((var_pacote_gatilho*2)>(bit<48>)hdr.tcp.seqNo)&&(var_pacote_gatilho>0)) ||
((((bit<48>)hdr.tcp.seqNo)==0)&&(var_pacote_gatilho<=(bit<48>)hdr.tcp.ackNo)&&((var_pacote_gatilho*2)>(bit<48>)hdr.tcp.ackNo)&&(var_pacote_gatilho>0))) {
porta_status.write((bit<32>)standard_metadata.egress_spec,PORTA_DOWN);
}
if ((((var_pacote_gatilho*2)<=(bit<48>)hdr.tcp.seqNo) && (var_pacote_gatilho>0)) ||
((((bit<48>)hdr.tcp.seqNo)==0) && ((var_pacote_gatilho*2)<=(bit<48>)hdr.tcp.ackNo) && (var_pacote_gatilho>0))){
porta_status.write((bit<32>)standard_metadata.egress_spec,PORTA_UP);
}
} else {
drop();
var_drop=SIM;
}
porta_status.read(var_status_porta_saida,(bit<32>)standard_metadata.egress_spec);
if (hdr.ipv4.protocol==TYPE_ICMP){
hash(var_hash_fluxo_porta_saida,HashAlgorithm.crc32, (bit<32>)0, {hdr.ipv4.srcAddr, hdr.ipv4.dstAddr, standard_metadata.egress_spec},(bit<32>)NUMERO_FLUXOS);
} else if (hdr.ipv4.protocol==TYPE_TCP){
hash(var_hash_fluxo_porta_saida,HashAlgorithm.crc32, (bit<32>)0, {hdr.ipv4.srcAddr, hdr.ipv4.dstAddr, hdr.tcp.srcPort, hdr.tcp.dstPort, standard_metadata.egress_spec},(bit<32>)NUMERO_FLUXOS);
} else if (hdr.ipv4.protocol==TYPE_UDP){
hash(var_hash_fluxo_porta_saida,HashAlgorithm.crc32, (bit<32>)0, {hdr.ipv4.srcAddr, hdr.ipv4.dstAddr, hdr.udp.srcPort, hdr.udp.dstPort, standard_metadata.egress_spec},(bit<32>)NUMERO_FLUXOS);
} else {
var_hash_fluxo_porta_saida =0;
}
fluxo_status.read(var_status_fluxo_saida,(bit<32>)var_hash_fluxo_porta_saida);
if (standard_metadata.egress_spec == standard_metadata.ingress_port) {
fluxo_status.write((bit<32>)var_hash_fluxo_porta_saida,PORTA_DOWN);
fluxo_tempo.write((bit<32>)var_hash_fluxo_porta_saida,standard_metadata.ingress_global_timestamp);
var_status_fluxo_saida=PORTA_DOWN;
}
if (var_status_fluxo_saida == PORTA_DOWN){
fluxo_tempo.read(var_fluxo_tempo,(bit<32>)var_hash_fluxo_porta_saida);
clone_valida_fluxo.read(var_clone_valida_fluxo,(bit<32>)var_hash_fluxo_porta_saida);
if (var_clone_valida_fluxo == REVALIDA) {
if (standard_metadata.egress_spec == standard_metadata.ingress_port) {
fluxo_tempo.write((bit<32>)var_hash_fluxo_porta_saida,standard_metadata.ingress_global_timestamp);
clone_valida_fluxo.write((bit<32>)var_hash_fluxo_porta_saida,NAO_REVALIDA);
drop();
var_drop = SIM;
} else
if ((var_fluxo_tempo+TIME_OUT_RECUPERA_FLUXO+TIME_OUT_VALIDA_CLONE)<standard_metadata.ingress_global_timestamp) {
var_status_fluxo_saida = PORTA_UP;
fluxo_status.write((bit<32>)var_hash_fluxo_porta_saida,PORTA_UP);
clone_valida_fluxo.write((bit<32>)var_hash_fluxo_porta_saida,NAO_REVALIDA);
fluxo_pivo_saida.write((bit<32>)var_hash_fluxo_porta_saida,NAO);
}
}
if ((var_fluxo_tempo+TIME_OUT_RECUPERA_FLUXO)<standard_metadata.ingress_global_timestamp){
fluxo_pivo_saida.read(var_fluxo_pivo_saida,(bit<32>)var_hash_fluxo_porta_saida);
if ((var_fluxo_pivo_saida == PIVO_FRR) && (var_status_porta_saida==PORTA_UP) && (var_clone_valida_fluxo == NAO_REVALIDA)){
clone_valida_fluxo.write((bit<32>)var_hash_fluxo_porta_saida,REVALIDA);
clone(CloneType.I2E,(bit<32>) standard_metadata.egress_spec);
} else if ((var_fluxo_pivo_saida != PIVO_FRR) && (var_status_porta_saida==PORTA_UP)){
var_status_fluxo_saida = PORTA_UP;
fluxo_status.write((bit<32>)var_hash_fluxo_porta_saida,PORTA_UP);
}
}
}
var_saida_primeira_rota=standard_metadata.egress_spec;
if ((var_status_porta_saida==PORTA_DOWN) || (standard_metadata.egress_spec == standard_metadata.ingress_port) || (var_status_fluxo_saida==PORTA_DOWN)) {
if (var_drop==NAO){
SW_ID.read(varSW_ID,1);
if ((varSW_ID!=9094) && (varSW_ID!=9099) && (varSW_ID!=9104) && (varSW_ID!=9109)){
ipv4_lpm_backup.apply();
pacote_gatilho.read(var_pacote_gatilho,(bit<32>)standard_metadata.egress_spec);
if (((var_pacote_gatilho<=(bit<48>)hdr.tcp.seqNo)&&((var_pacote_gatilho*2)>(bit<48>)hdr.tcp.seqNo)&&(var_pacote_gatilho>0)) ||
((((bit<48>)hdr.tcp.seqNo)==0)&&(var_pacote_gatilho<=(bit<48>)hdr.tcp.ackNo)&&((var_pacote_gatilho*2)>(bit<48>)hdr.tcp.ackNo)&&(var_pacote_gatilho>0))) {
porta_status.write((bit<32>)standard_metadata.egress_spec,PORTA_DOWN);
}
if ((((var_pacote_gatilho*2)<=(bit<48>)hdr.tcp.seqNo) && (var_pacote_gatilho>0)) ||
((((bit<48>)hdr.tcp.seqNo)==0) && ((var_pacote_gatilho*2)<=(bit<48>)hdr.tcp.ackNo) && (var_pacote_gatilho>0))){
porta_status.write((bit<32>)standard_metadata.egress_spec,PORTA_UP);
}
porta_status.read(var_status_porta_saida,(bit<32>)standard_metadata.egress_spec);
if ((var_status_porta_saida==PORTA_DOWN) || (standard_metadata.egress_spec == standard_metadata.ingress_port)) {
standard_metadata.egress_spec = (bit<9>)var_fluxo_porta_entrada;
fluxo_mac_entrada.read(hdr.ethernet.dstAddr,(bit<32>)var_hash_fluxo_porta_entrada);
fluxo_pivo_saida.write((bit<32>)var_hash_fluxo_porta_saida,NAO);
} else
if ((var_status_porta_saida==PORTA_UP) && (standard_metadata.ingress_port == var_saida_primeira_rota)){
fluxo_pivo_saida.write((bit<32>)var_hash_fluxo_porta_saida,PIVO_FRR);
}
} else {
standard_metadata.egress_spec = (bit<9>)var_fluxo_porta_entrada;
}
}
var_drop = NAO;
}
}
}
}
/*************************************************************************
**************** E G R E S S P R O C E S S I N G *******************
*************************************************************************/
control MyEgress(inout headers hdr,
inout metadata meta,
inout standard_metadata_t standard_metadata) {
apply {
if (standard_metadata.instance_type == PKT_INSTANCE_TYPE_INGRESS_CLONE) {
hdr.ipv4.ttl = hdr.ipv4.ttl - 1;
}
}
}
/*************************************************************************
************* C H E C K S U M C O M P U T A T I O N **************
*************************************************************************/
control MyComputeChecksum(inout headers hdr, inout metadata meta) {
apply {
update_checksum(
hdr.ipv4.isValid(),
{ hdr.ipv4.version,
hdr.ipv4.ihl,
hdr.ipv4.diffserv,
hdr.ipv4.totalLen,
hdr.ipv4.identification,
hdr.ipv4.flags,
hdr.ipv4.fragOffset,
hdr.ipv4.ttl,
hdr.ipv4.protocol,
hdr.ipv4.srcAddr,
hdr.ipv4.dstAddr },
hdr.ipv4.hdrChecksum,
HashAlgorithm.csum16);
}
}
/*************************************************************************
*********************** D E P A R S E R *******************************
*************************************************************************/
control MyDeparser(packet_out packet, in headers hdr) {
apply {
packet.emit(hdr.ethernet);
packet.emit(hdr.ipv4);
packet.emit(hdr.tcp);
packet.emit(hdr.udp);
packet.emit(hdr.icmp);
}
}
/*************************************************************************
*********************** S W I T C H *******************************
*************************************************************************/
V1Switch(
MyParser(),
MyVerifyChecksum(),
MyIngress(),
MyEgress(),
MyComputeChecksum(),
MyDeparser()
) main;